MERRILL LYNCH & CO INC
S-3/A, 1999-03-29
SECURITY BROKERS, DEALERS & FLOTATION COMPANIES
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    As Filed with the Securities and Exchange Commission on March 29, 1999
                                                Registration No. 333-68747
============================================================================
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                              ---------------------

                                AMENDMENT NO. 2
                                       TO
    
                                    FORM S-3
                             REGISTRATION STATEMENT
                                       and
                            POST-EFFECTIVE AMENDMENTS
                                      under
                           THE SECURITIES ACT OF 1933
                              ---------------------
<TABLE>
<S>                                                             <C>                       <C>
                  MERRILL LYNCH & CO., INC.                             DELAWARE                     13-2740599
       (Exact name of registrant as specified in charter)        (State of incorporation)  (I.R.S. employer identification number)
             MERRILL LYNCH PREFERRED FUNDING VI, L.P.                   DELAWARE                     13-4034253
(Exact name of registrant as specified in certificate of         (State of organization)   (I.R.S. employer identification number)
                    limited partnership)
             MERRILL LYNCH PREFERRED CAPITAL TRUST VI                   DELAWARE                     13-7174482
 (Exact name of registrant as specified in certificate of trust) (State of organization)   (I.R.S. employer identification number)
</TABLE>
                             World Financial Center
                                   North Tower
                          New York, New York 10281-1334
                                  (212)449-1000
               (Address, including zip code, and telephone number,
        including area code, of registrant's principal executive offices)
                              ---------------------

                              MARK B. GOLDFUS, ESQ.
                                 General Counsel
                                  Corporate Law
                            Merrill Lynch & Co., Inc.
                             World Financial Center
                                   North Tower
                          New York, New York 10281-1334
                                  (212)449-6990
            (Name, address, including zip code, and telephone number,
                   including area code, of agent for service)
                              ---------------------
<TABLE>
<S>                                           <C>                                         <C>
                                                      Copies to:
   NORMAN D. SLONAKER, ESQ.                    DONALD R. CRAWSHAW, ESQ.                     RICHARD T. PRINS, ESQ.
       Brown & Wood LLP                           Sullivan & Cromwell                        Skadden, Arps, Slate,
    One World Trade Center                         125 Broad Street                           Meagher & Flom LLP
   New York, New York 10048                    New York, New York 10004                       919 Third Avenue
                                                                                           New York, New York 10022
</TABLE>
                              ---------------------

         Approximate date of commencement of proposed sale to public:  From time
to time after the effective date of this Registration Statement as determined by
market conditions.
                              ---------------------

         If the only securities  being registered on this Form are being offered
pursuant to dividend or interest  reinvestment plans, please check the following
box. |_|
         If any of the  securities  being  registered  on  this  Form  are to be
offered  on a  delayed  or  continuous  basis  pursuant  to Rule 415  under  the
Securities Act of 1933,  other than  securities  offered only in connection with
dividend or interest reinvestment plans, check the following box. |X|
         If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list  the  Securities  Act  registration  statement  number  of the  earlier
effective registration statement for the same offering. |_|
         If this  Form is a  post-effective  amendment  filed  pursuant  to Rule
462(c) under the Securities Act, check the following box and list the Securities
Act  registration   statement  number  of  the  earlier  effective  registration
statement for the same offering. |_|
         If delivery of the prospectus is expected to be made pursuant to Rule
434, please check the following box. |_|


         The Registrants  hereby amend this Registration  Statement on such date
or dates as may be necessary to delay its effective  date until the  Registrants
shall file a further amendment which specifically  states that this Registration
Statement shall  thereafter  become effective in accordance with Section 8(a) of
the Securities Act or until this  Registration  Statement shall become effective
on such date as the Securities and Exchange Commission,  acting pursuant to said
Section 8(a), may determine.


================================================================================

<PAGE>


                                EXPLANATORY NOTE

         This registration statement contains:

         (a) a  prospectus  which  is to be used by  Merrill  Lynch & Co.,  Inc.
("ML&Co.") in connection with offerings of its:

     o   debt securities;

     o   warrants;

     o   common stock;

     o   preferred stock; and

     o   depositary shares;

   
         (b)  a prospectus which is to be used by ML&Co. in connection with 
offerings of its Structured Yield Product Exchangeable for Stock; and

         (c)  a prospectus including alternate pages, which is to be used in
connection with offerings of:
    

    o    the preferred securities of Merrill Lynch Preferred Capital Trust VI 
("ML Trust");

    o    the preferred securities of Merrill Lynch Preferred Funding VI, L.P. 
("ML Partnership");

    o    the subordinated debentures of ML&Co.; and

    o    the guarantees of ML&Co. of:

    o    the preferred securities of ML Trust;

    o    the preferred securities of ML Partnership; and
   
    o    specified debentures issued by ML&Co.'s affiliates.

    o    Additionally,  there is a  prospectus  supplement  relating to ML&Co.'s
         medium-term   notes  and  32  prospectuses  to  be  used  by  ML&Co.'s
         wholly-owned  subsidiary,  Merrill Lynch & Co., Merrill Lynch,  Pierce,
         Fenner  &  Smith   Incorporated   in  connection   with   market-making
         transactions.
    

<PAGE>

   
The  information in this  prospectus is not complete and may be changed.  We may
not sell  these  securities  until the  registration  statement  filed  with the
Securities and Exchange Commission is effective. This prospectus is not an offer
to  sell  these  securities  and it is not  soliciting  an  offer  to buy  these
securities in any state where the offer or sale is not permitted.
    

                              Subject to Completion
   
                   Preliminary Prospectus dated March 29, 1999
    

PROSPECTUS

                                     [LOGO]

                            Merrill Lynch & Co., Inc.

                   DEBT SECURITIES, WARRANTS, PREFERRED STOCK,
                       DEPOSITARY SHARES AND COMMON STOCK

o    By this prospectus, we may             o   When  we  offer   securities, we
     offer from time to time up to              will    provide   you   with   a
     $         of our:                          prospectus  supplement or a term
                                                sheet  describing  the  terms of
         o    debt securities;                  the specific issue of securities
                                                including the offering price of
         o    warrants;                         the securities.

         o    warrants;                      o  You should read  this prospectus
                                                and the prospectus supplement or
         o    common stock;                     the  term  sheet relating to the
                                                specific   issue  of  securities
         o    preferred stock; and              carefully before you invest.

         o    depositary shares.

         Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if this
prospectus  is truthful or  complete.  Any  representation  to the contrary is a
criminal offense.

                           --------------------------

             The date of this prospectus is              , 199 .

<PAGE>
                            MERRILL LYNCH & CO., INC.

     We are a holding company that,  through our U.S. and non-U.S.  subsidiaries
and  affiliates  such as Merrill  Lynch,  Pierce,  Fenner & Smith  Incorporated,
Merrill Lynch Government Securities Inc., Merrill Lynch Capital Services,  Inc.,
Merrill Lynch  International,  Merrill Lynch Capital Markets Bank Ltd.,  Merrill
Lynch Asset Management L.P. and Merrill Lynch Mercury Asset Management, provides
investment,  financing,  advisory,  insurance,  and related products on a global
basis, including:

     o    securities brokerage, trading and underwriting;

     o    investment  banking,   strategic   services,   including  mergers  and
          acquisitions and other corporate finance advisory activities;

     o    asset  management  and other  investment  advisory  and  recordkeeping
          services;

     o    trading and brokerage of swaps, options,  forwards,  futures and other
          derivatives;

     o    securities clearance services;

     o    equity, debt and economic research;

     o    banking,  trust and lending services,  including  mortgage lending and
          related services; and

     o    insurance sales and underwriting services.

We provide  these  products and  services to a wide array of clients,  including
individual investors, small businesses, corporations,  governments, governmental
agencies and financial institutions.

     Our principal executive office is located at World Financial Center,  North
Tower, 250 Vesey Street, New York, New York 10281; our telephone number is (212)
449-1000.

     If you want to find more  information  about us,  please  see the  sections
entitled "Where You Can Find More Information" and "Incorporation of Information
We File with the SEC" in this prospectus.

   
     In this prospectus,  "ML&Co.",  "we", "us" and "our" refer  specifically to
Merrill Lynch & Co., Inc., the holding company.  ML&Co. is the issuer of all the
securities offered under this prospectus.
    

<PAGE>
                                 USE OF PROCEEDS

   
         We intend to use the net proceeds from the sale of the  securities  for
general  corporate  purposes,  unless  otherwise  specified  in  the  prospectus
supplement or term sheet relating to a specific issue of securities. Our general
corporate  purposes may include  financing the  activities of our  subsidiaries,
financing  our assets and those of our  subsidiaries,  lengthening  the  average
maturity of our  borrowings  and  financing  acquisitions.  Until we use the net
proceeds from the sale of any of our securities for general corporate  purposes,
we will use the net  proceeds  to  reduce  our  short-term  indebtedness  or for
temporary  investments.  We expect that we will, on a recurrent basis, engage in
additional  financings  as the  need  arises  to  finance  our  growth,  through
acquisitions  or  otherwise,   or  to  lengthen  the  average  maturity  of  our
borrowings.  To the extent that  securities  being  purchased  for resale by our
subsidiary,  Merrill Lynch Pierce,  Fenner & Smith Incorporated,  referred to in
this prospectus as MLPF&S,  are not resold,  the aggregate  proceeds that we and
our subsidiaries would receive would be reduced.
    

                     RATIO OF EARNINGS TO FIXED CHARGES AND
   RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED STOCK DIVIDENDS

   
         In 1998, we acquired the outstanding shares of Midland Walwyn, Inc., in
a transaction accounted for as a pooling-of-interests. The following information
for the fiscal years 1994 through 1997 has been  restated as if the two entities
had always been combined.
    

         The  following  table sets forth our  historical  ratios of earnings to
fixed  charges and ratios of earnings to combined  fixed  charges and  preferred
stock dividends for the periods indicated:

<TABLE>
<CAPTION>

                                                            YEAR ENDED LAST FRIDAY IN DECEMBER
                                                          1994    1995    1996     1997    1998
                                                          ----    ----    ----     ----    ----
<S>                                                       <C>     <C>     <C>      <C>     <C>
Ratio of earnings to fixed charges(a).................     1.2     1.2     1.2      1.2     1.1
Ratio of earnings to combined fixed charges
       and preferred stock dividends(a)...............     1.2     1.2     1.2      1.2     1.1
</TABLE>

______________

(a)  The effect of combining  Midland Walwyn did not change the ratios  reported
     for the fiscal years 1994 through 1997.

         For the purpose of calculating  the ratio of earnings to fixed charges,
"earnings"  consist of earnings from continuing  operations  before income taxes
and  fixed  charges,  excluding  capitalized  interest  and  preferred  security
dividend  requirements.  "Fixed charges" consist of interest costs, the interest
factor in rentals,  amortization  of debt  issuance  costs,  preferred  security
dividend requirements of subsidiaries, and capitalized interest.


<PAGE>
                                 THE SECURITIES

     ML&Co.  intends to sell its securities from time to time.  These securities
may include the following,  in each case, as specified by ML&Co.  at the time of
offering:

     o    common stock;

     o    preferred stock;

     o    depositary shares representing preferred stock;

     o    debt  securities,  comprising  senior debt securities and subordinated
          debt securities, each of which may be convertible into common stock or
          preferred stock;

     o    warrants to purchase debt securities;

     o    warrants to purchase shares of common stock;

     o    warrants to purchase shares of preferred stock;

     o    warrants  entitling  the holders to receive  from ML&Co.  a payment or
          delivery  determined  by  reference  to  decreases or increases in the
          level of an index or portfolio ("Index Warrants") based on:

          o    one or more equity or debt securities;

          o    any statistical measure of economic or financial performance such
               as a currency or a consumer price or mortgage index; or

          o    the price or value of any commodity or any other item or index;

     o    warrants to receive from ML&Co.  the cash value in U.S. dollars of the
          right to purchase ("Currency Call Warrants") or to sell ("Currency Put
          Warrants" and, together with the Currency Call Warrants, the "Currency
          Warrants")  specified  foreign  currencies  or  units  of two or  more
          specified foreign currencies;

   
     o    preferred stock which may be:
    

          o    convertible into preferred stock or common stock or

   
          o    exchangeable for debt  securities,  preferred stock or depositary
               shares representing preferred stock.
    

   
     We may offer the securities independently or together with other securities
and the  securities  may be attached to, or separate from other  securities.  We
will offer the securities to the public on terms determined by market conditions
at the  time of sale and set  forth in a  prospectus  supplement  or term  sheet
relating to the specific issue of securities.

     ML&Co.  will  offer the  securities  described  in this  prospectus  either
separately  or  together  in one or  more  series  of up to $  aggregate  public
offering price or its  equivalent in foreign  currencies or units of two or more
currencies,  based on the applicable  exchange rate at the time of offering,  as
shall be designated by ML&Co.  at the time of offering,  subject to reduction on
account of the sale of other  securities  under the  registration  statement  of
which this prospectus is a part.
    

                         DESCRIPTION OF DEBT SECURITIES

   
     Unless  otherwise  specified  in a prospectus  supplement,  the senior debt
securities are to be issued under an indenture (the "1983 Indenture"),  dated as
of April 1, 1983, as amended and restated and as further amended, between ML&Co.
and The Chase Manhattan Bank, as trustee or issued under an indenture (the "1993
Indenture"),  dated as of October 1, 1993, as amended,  between  ML&Co.  and The
Chase  Manhattan  Bank, as trustee  (each,  a "Senior Debt  Trustee").  The 1983
Indenture  and the 1993  Indenture  are referred to as the "Senior  Indentures".
Unless otherwise  specified in a prospectus  supplement,  the subordinated  debt
securities are to be issued under an indenture (the  "Subordinated  Indenture"),
between ML&Co. and The Chase Manhattan Bank, as trustee (the  "Subordinated Debt
Trustee").  The Senior Debt Securities and Subordinated Debt Securities may also
be issued under one or more other  indentures  (each, a "Subsequent  Indenture")
and  have  one or more  other  trustees  (each,  a  "Subsequent  Trustee").  Any
Subsequent  Indenture  relating  to senior debt  securities  will have terms and
conditions  identical in all material  respects to the  above-referenced  Senior
Indentures and any Subsequent Indenture relating to subordinated debt securities
will  have  terms and  conditions  identical  in all  material  respects  to the
above-referenced  Subordinated  Indenture,  including,  but not  limited to, the
applicable  terms and  conditions  described  below.  Any  Subsequent  Indenture
relating to a series of debt  securities,  and the applicable  trustee,  will be
identified in the applicable prospectus supplement or term sheet. A copy of each
indenture is filed, or, in the case of a Subsequent Indenture, will be filed, as
an  exhibit  to the  registration  statement  relating  to the  securities.  The
following  summaries  of the  material  provisions  of the  indentures  are  not
complete and are subject to, and are  qualified  in their  entirety by reference
to, all provisions of the respective  indentures,  including the  definitions of
terms.
    

TERMS OF THE DEBT SECURITIES

     ML&Co. may issue the debt securities from time to time,  without limitation
as to aggregate  principal  amount and in one or more series.  ML&Co.  may issue
debt securities upon the  satisfaction of conditions,  including the delivery to
the applicable Trustee of a resolution of the Board of Directors of ML&Co., or a
committee of the Board of Directors,  or a  certificate  of an officer of ML&Co.
who has been  authorized  by the Board of Directors to take that kind of action,
which fixes or establishes  the terms of the debt securities  being issued.  Any
resolution or officer's  certificate approving the issuance of any issue of debt
securities will include the terms of that issue of debt securities, including:

   
          o    the  aggregate  principal  amount and whether  there is any limit
               upon the aggregate  principal amount that ML&Co. may subsequently
               issue;
    

          o    the stated maturity date;

          o    the principal  amount payable whether at maturity or upon earlier
               acceleration, and whether the principal amount will be determined
               with reference to an index, formula or other method;

          o    any fixed or variable interest rate or rates per annum;

          o    any interest payment dates;

          o    any  provisions  for  redemption,  the  redemption  price and any
               remarketing arrangements;

          o    any sinking fund requirements;

          o    whether the debt  securities are denominated or payable in United
               States  dollars  or a  foreign  currency  or units of two or more
               foreign currencies;

   
          o    the form in which ML&Co. will issue the debt securities,  whether
               registered,  bearer or both, and any  restrictions  applicable to
               the  exchange of one form for another and to the offer,  sale and
               delivery of the debt securities in either form;
    

          o    whether and under what  circumstances  ML&Co. will pay additional
               amounts ("Additional  Amounts") under any debt securities held by
               a  person  who  is  not  a  U.S.  person  for  specified   taxes,
               assessments or other governmental  charges and whether ML&Co. has
               the option to redeem the affected debt securities rather than pay
               any Additional Amounts;

          o    whether the debt securities are to be issued in global form;

          o    the title and series designation;

          o    the minimum denominations;

   
          o    whether,  and the terms and conditions  relating to when,  ML&Co.
               may satisfy all or part of its obligations with regard to payment
               upon  maturity,  or any  redemption or required  repurchase or in
               connection  with any exchange  provisions  by  delivering  to the
               holders of the debt securities,  other  securities,  which may or
               may  not  be  issued  by  or  be  obligations  of  ML&Co.,  or  a
               combination of cash, other securities and/or property  ("Maturity
               Consideration");

          o    any  additions or  deletions in the terms of the debt  securities
               with respect to the Events of Default set forth in the respective
               indentures;

          o    the terms, if any, upon which the debt securities are convertible
               into common stock or preferred stock of ML&Co.  and the terms and
               conditions upon which any conversion will be effected,  including
               the initial  conversion price or rate, the conversion  period and
               any other provisions in addition to or instead of those described
               in this prospectus;

          o    whether,  and the terms and conditions  relating to when, holders
               may transfer the debt securities  separately from warrants if the
               debt securities and warrants are issued together; and

          o    any other terms of the debt securities which are not inconsistent
               with the provisions of the applicable indenture.

     Please see the  accompanying  prospectus  supplement or the terms sheet you
have  received or will  receive for the terms of the  specific  debt  securities
being offered.  ML&Co. may deliver this prospectus  before or concurrently  with
the  delivery  of a terms  sheet.  ML&Co.  may issue debt  securities  under the
indentures  upon the  exercise  of warrants to  purchase  debt  securities.  See
"Description of Debt Warrants". Nothing in the indentures or in the terms of the
debt   securities   will  prohibit  the  issuance  of  securities   representing
subordinated  indebtedness  that is senior or  junior to the  subordinated  debt
securities.

     Prospective purchasers of debt securities should be aware that special U.S.
Federal  income tax,  accounting and other  considerations  may be applicable to
instruments such as the debt securities.  The prospectus  supplement relating to
an issue of debt securities will describe these considerations, if they apply.

     ML&Co.  will issue each series of debt  securities,   as  described  in the
prospectus  supplement,  in fully  registered  form without  coupons,  and/or in
bearer  form with or  without  coupons,  and in  denominations  set forth in the
prospectus  supplement.  There will be no service charge for any registration of
transfer of  registered  debt  securities  or exchange of debt  securities,  but
ML&Co.  may  require  payment  of a sum  sufficient  to  cover  any tax or other
governmental  charges imposed in connection with any registration of transfer or
exchange.  Each  indenture  provides  that ML&Co.  may issue debt  securities in
global form.  If any series of debt  securities  is issued in global  form,  the
applicable prospectus supplement will describe the circumstances,  if any, under
which beneficial  owners of interests in any of those global debt securities may
exchange  their  interests for debt  securities of that series and of like tenor
and principal amount in any authorized form and denomination.

     The  provisions of the  indentures  permit ML&Co.,   without the consent of
holders of any debt  securities,  to issue additional debt securities with terms
different  from  those of debt  securities  previously  issued  and to  reopen a
previous series of debt securities and issue  additional debt securities of that
series.

     The senior debt securities will be unsecured and will rank equally with all
other unsecured and unsubordinated  indebtedness of ML&Co. The subordinated debt
securities will be unsecured and will be subordinated to all existing and future
senior indebtedness of ML&Co.  Because ML&Co. is a holding company, the right of
ML&Co.  and its  creditors,  including  the holders of the debt  securities,  to
participate  in any  distribution  of the  assets  of any  subsidiary  upon  its
liquidation or reorganization  or otherwise is necessarily  subject to the prior
claims of  creditors of the  subsidiary,  except to the extent that a bankruptcy
court may recognize the claims of ML&Co. itself as a creditor of the subsidiary.
In   addition,   dividends,   loans  and  advances  from  certain  subsidiaries,
including MLPF&S, to ML&Co. are restricted by net capital requirements under the
Securities  Exchange  Act of 1934,  as  amended,  and  under  rules  of  certain
exchanges and other regulatory bodies.

     ML&Co. will pay or deliver principal and any premium,  Additional  Amounts,
Maturity  Consideration and interest in the manner, at the places and subject to
the restrictions set forth in the applicable indenture,  the debt securities and
the applicable prospectus supplement. However, at its option, ML&Co. may pay any
interest and any Additional Amounts by check mailed to the holders of registered
debt securities at their registered addresses.

     Holders may present debt  securities  for  exchange,  and  registered  debt
securities  for  transfer,  in the  manner,  at the  places  and  subject to the
restrictions set forth in the applicable indenture,  the debt securities and the
applicable prospectus supplement. Holders may transfer debt securities in bearer
form and the coupons,  if any,  pertaining  to the debt  securities by delivery.
There will be no service charge for any transfer or exchange of debt securities,
but ML&Co.  may require  payment of a sum  sufficient  to cover any tax or other
governmental charge payable in connection with a transfer or exchange.

     Unless otherwise indicated in the applicable prospectus supplement,  ML&Co.
will  issue the debt  securities  under the  indentures.  If so  specified  in a
prospectus  supplement,  ML&Co. may issue  subordinated  debt securities under a
separate  indenture which provides for a single issue of zero coupon convertible
subordinated  debt  securities,  a form of which is filed as an  exhibit  to the
registration statement of which this prospectus is a part. If ML&Co. issues debt
securities under any indenture,  the applicable  prospectus  supplement will set
forth  the  terms  of the  debt  securities  and will  identify  the  applicable
indenture and trustee.
    

MERGER AND CONSOLIDATION

     ML&Co.  may  consolidate or merge with or into any other  corporation,  and
ML&Co. may sell,  lease or convey all or substantially  all of its assets to any
corporation, provided that:

   
     o    the  resulting  corporation,  if other than ML&Co.,  is a  corporation
          organized and existing  under the laws of the United States of America
          or any U.S. state and assumes all of ML&Co.'s obligations to:
    

          o    pay or deliver  the  principal  of, and any  premium,  Additional
               Amounts,   Maturity   Consideration  or  interest  on,  the  debt
               securities; and

   
          o    perform and observe all of ML&Co.'s other  obligations  under the
               indentures, and

     o    ML&Co.  or any  successor  corporation,  as the case  may be,  is not,
          immediately  after any  consolidation or merger,  in default under the
          indentures.
    

MODIFICATION AND WAIVER

   
     Each  indenture  may be modified and amended by ML&Co.  and the  applicable
trustee with the consent of holders of at least 66 2/3% in  principal  amount or
aggregate  issue  price of each  series of debt  securities  affected.  However,
without the consent of each holder of any debt security  affected,  no amendment
or modification to any indenture may:

          o    change  the  stated   maturity  of  the   principal  or  Maturity
               Consideration  of, or any  installment  of interest or Additional
               Amounts  on,  any  debt  security  or  any  premium   payable  on
               redemption, or change the redemption price;
    

          o    reduce the  principal  amount of, or the  interest or  Additional
               Amounts  payable  on, or reduce  the amount or change the type of
               Maturity  Consideration  deliverable  on,  any debt  security  or
               reduce the amount of  principal or Maturity  Consideration  which
               could be declared due and payable before the stated maturity;

          o    change  the place or  currency  of any  delivery  or  payment  of
               principal or Maturity Consideration of, or any premium,  interest
               or Additional Amounts on any debt security;

          o    impair the right to  institute  suit for the  enforcement  of any
               delivery or payment on any debt security;

   
          o    reduce the  percentage  in principal  amount or  aggregate  issue
               price of the  outstanding  debt  securities  of any  series,  the
               consent  of whose  holders  is  required  to  modify or amend the
               applicable indenture; or
    

          o    modify the  foregoing  requirements  or reduce the  percentage in
               principal  amount or aggregate  issue price of  outstanding  debt
               securities  necessary  to waive any past  default  to less than a
               majority.

   
     No  modification  or  amendment  of  the  Subordinated   Indenture  or  any
Subsequent  Indenture for subordinated  debt securities may adversely affect the
rights of any holder of ML&Co.'s senior indebtedness without the consent of each
holder  affected.  The  holders of at least a majority  in  principal  amount or
aggregate issue price of the outstanding debt securities of any series may, with
respect to that series,  waive past defaults under the applicable  indenture and
waive compliance by ML&Co. with certain provisions of that indenture,  except as
described under "-Events of Default".
    

EVENTS OF DEFAULT

   
     Each of the  following  will be an Event of  Default  with  respect to each
series of debt securities issued under each indenture:
    

          o    default in the payment of any interest or Additional Amounts when
               due, and continuing for 30 days;

          o    default in the payment of any principal or premium, when due;

          o    default in the delivery or payment of the Maturity  Consideration
               when due;

          o    default in the deposit of any sinking fund payment, when due;

   
          o    default  in the  performance  of any other  obligation  of ML&Co.
               contained  in the  applicable  indenture  for the benefit of that
               series or in the debt  securities of that series,  and continuing
               for 60 days after  written  notice as provided in the  applicable
               indenture;
    

          o    specified events in bankruptcy,  insolvency or  reorganization of
               ML&Co. and

          o    any  other  Event  of  Default  provided  with  respect  to  debt
               securities of that series.

   
     If an Event of  Default  occurs  and is  continuing  for any series of debt
securities,  the applicable  trustee or the holders of at least 25% in principal
amount or  aggregate  issue price of the  outstanding  debt  securities  of that
series may declare all amounts,  or any lesser  amount  provided for in the debt
securities of that series,  due and payable or deliverable  immediately.  At any
time after the  applicable  trustee or the holders  have made a  declaration  of
acceleration  with respect to the debt  securities  of any series but before the
applicable  trustee has  obtained a judgment or decree for payment of money due,
the holders of a majority in principal  amount or  aggregate  issue price of the
outstanding  debt  securities  of that  series may rescind  any  declaration  of
acceleration and its consequences,  provided that all payments and/or deliveries
due,  other than those due as a result of  acceleration,  have been made and all
Events of Default have been remedied or waived.

     The holders of a majority in principal  amount or aggregate  issue price of
the outstanding debt securities of any series may waive an Event of Default with
respect to that series, except a default:
    

          o    in the  payment of any  amounts  due and  payable or  deliverable
               under the debt securities of that series; or

   
          o    in  respect  of  an  obligation  of  ML&Co.  contained  in,  or a
               provision  of, any indenture  which cannot be modified  under the
               terms of that  indenture  without  the  consent of each holder of
               each series of debt securities affected.

     The holders of a majority in principal  amount or aggregate  issue price of
the  outstanding  debt  securities  of a series may direct the time,  method and
place of conducting any  proceeding  for any remedy  available to the applicable
trustee or exercising  any trust or power  conferred on the trustee with respect
to debt  securities  of that  series,  provided  that  any  direction  is not in
conflict  with  any  rule of law or the  applicable  indenture.  Subject  to the
provisions of each indenture relating to the duties of the appropriate  trustee,
before  proceeding  to  exercise  any right or power under an  indenture  at the
direction of the  holders,  the  applicable  trustee is entitled to receive from
those holders reasonable  security or indemnity against the costs,  expenses and
liabilities which might be incurred by it in complying with any direction.

     Unless otherwise stated in the applicable prospectus supplement, any series
of debt  securities  issued under any indenture will not have the benefit of any
cross-default provisions with other indebtedness of ML&Co.

     ML&Co.  will be required to furnish to each trustee annually a statement as
to the  fulfillment  by ML&Co.  of all of its  obligations  under the applicable
indenture.
    

SPECIAL TERMS RELATING TO THE SENIOR DEBT SECURITIES

         LIMITATIONS UPON LIENS

   
     ML&Co.  may not,  and may not  permit  any  majority-owned  subsidiary  to,
create,  assume,  incur or permit to exist any  indebtedness  for borrowed money
secured by a pledge, lien or other encumbrance, other than any lien specifically
permitted  by the Senior  Indentures,  on the Voting  Stock  owned  directly  or
indirectly  by  ML&Co.   of  any   majority-owned   subsidiary,   other  than  a
majority-owned  subsidiary  which,  at the  time of  incurrence  of the  secured
indebtedness,  has a net worth of less than  $3,000,000,  unless the outstanding
senior  debt  securities  are  secured  equally  and  ratably  with the  secured
indebtedness.

     "Voting  Stock" is  defined in the  Senior  Indentures  as the stock of the
class or classes having general  voting power under  ordinary  circumstances  to
elect at least a majority of the board of  directors,  managers or trustees of a
corporation provided that, for the purposes of the Senior Indentures, stock that
carries only the right to vote  conditionally  on the  occurrence of an event is
not considered voting stock whether or not the event has happened.
    

         LIMITATIONS  ON  DISPOSITION OF VOTING STOCK OF, AND MERGER AND SALE OF
         ASSETS BY, MLPF&S

     ML&Co. may not sell,  transfer or otherwise  dispose of any Voting Stock of
MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of its Voting
Stock,  unless,  after  giving  effect  to the  transaction,  MLPF&S  remains  a
Controlled Subsidiary.

     "Controlled  Subsidiary"  is  defined in the  Senior  Indentures  to mean a
corporation more than 80% of the outstanding shares of Voting Stock of which are
owned directly or indirectly by ML&Co.

     In addition, ML&Co. may not permit MLPF&S to:

          o    merge  or  consolidate,   unless  the  surviving   company  is  a
               Controlled Subsidiary, or

          o    convey or transfer its properties and assets  substantially as an
               entirety, except to one or more Controlled Subsidiaries.

SPECIAL TERMS RELATING TO THE SUBORDINATED DEBT SECURITIES

   
     Upon any  distribution of assets of ML&Co.  resulting from any dissolution,
winding  up,  liquidation  or  reorganization,  payments  on  subordinated  debt
securities are subordinated to the extent provided in the Subordinated Indenture
in right of payment to the prior payment in full of all senior indebtedness, but
the obligation of ML&Co.  to make payments on the  subordinated  debt securities
will not otherwise be affected.  ML&Co. may not make any payment on subordinated
debt  securities  at any time when there is a default in the payment or delivery
of any amounts due on any senior indebtedness,  including payment of any sinking
fund.  Because the  subordinated  debt  securities are  subordinated in right of
payment to any senior  indebtedness,  in the event of a  distribution  of assets
upon  insolvency,  some  creditors of ML&Co.  may recover  more,  ratably,  than
holders of subordinated debt securities. Holders of subordinated debt securities
will be subrogated to the rights of holders of senior indebtedness to the extent
of payments made on senior  indebtedness  upon any distribution of assets in any
proceedings in respect of subordinated debt securities.

     As of December 25, 1998, a total of approximately $75.4 billion of ML&Co.'s
indebtedness would have been senior indebtedness.
    

SPECIAL TERMS RELATING TO CONVERTIBLE DEBT SECURITIES

     The  following  provisions  will  apply  to debt  securities  that  will be
convertible  into common stock or  preferred  stock of ML&Co.  unless  otherwise
provided in the  prospectus  supplement  relating to the specific  issue of debt
securities.

     The  holder  of any  convertible  debt  securities  will  have  the  right,
exercisable  at any time  during the time  period  specified  in the  applicable
prospectus  supplement,  unless previously redeemed, to convert convertible debt
securities into shares of common stock or preferred stock of ML&Co. as specified
in the prospectus  supplement,  at the conversion  rate per principal  amount of
convertible debt securities set forth in the applicable  prospectus  supplement.
In the case of convertible  debt securities  called for  redemption,  conversion
rights will expire at the close of business on the date fixed for the redemption
specified in the applicable prospectus  supplement,  except that, in the case of
redemption at the option of the holder, if applicable, the conversion right will
terminate upon receipt of written notice of the exercise of the option.

   
     For each series of convertible  debt  securities,  the conversion  price or
rate will be subject to adjustment as contemplated in the applicable  indenture.
Unless  otherwise  provided  in  the  applicable  prospectus  supplement,  these
adjustments may occur as a result of:
    

     o    the issuance of shares of ML&Co. common stock as a dividend;

     o    subdivisions and combinations of ML&Co. common stock;

     o    the  issuance  to all  holders  of  ML&Co.  common  stock of rights or
          warrants  entitling  holders to  subscribe  for or purchase  shares of
          ML&Co.  common stock at a price per share less than the current market
          price per share; and

     o    the distribution to all holders of ML&Co. common stock of:

          o    shares of ML&Co. capital stock other than common stock;

          o    evidences  of  indebtedness  of ML&Co.  or assets other than cash
               dividends  paid from retained  earnings and dividends  payable in
               common stock referred to above; or

          o    subscription  rights or  warrants  other than those  referred  to
               above.

   
     In any case, no adjustment of the conversion price or rate will be required
unless an adjustment would require a cumulative increase or decrease of at least
1% in such price or rate.  ML&Co. will not issue any fractional shares of ML&Co.
common stock upon conversion,  but, instead,  ML&Co. will pay a cash adjustment.
If  indicated  in  the  applicable  prospectus   supplement,   convertible  debt
securities  convertible  into common stock of ML&Co.  which are  surrendered for
conversion  between  the record date for an interest  payment,  if any,  and the
interest  payment  date,  other  than  convertible  debt  securities  called for
redemption  on a redemption  date during that  period,  must be  accompanied  by
payment of an amount equal to interest which the  registered  holder is entitled
to receive.

     ML&Co.  will  determine the  adjustment  provisions  for  convertible  debt
securities  at  the  time  of  issuance  of  each  series  of  convertible  debt
securities.  These  adjustment  provisions  will be described in the  applicable
prospectus supplement.
    

     Except  as  set  forth  in  the  applicable  prospectus   supplement,   any
convertible  debt  securities  called for  redemption,  unless  surrendered  for
conversion  on or before  the close of  business  on the  redemption  date,  are
subject to being purchased from the holder of the convertible debt securities by
one or more  investment  banking  firms or other  purchasers  who may agree with
ML&Co.  to purchase  convertible  debt  securities  and convert them into common
stock or preferred stock of ML&Co., as the case may be.

GOVERNING LAW

   
     The indentures and the debt  securities  will be governed by, and construed
in accordance with, the laws of the State of New York.
    

                          DESCRIPTION OF DEBT WARRANTS

   
     ML&Co.  may issue  warrants  for the  purchase  of debt  securities  ("Debt
Warrants").  The Debt Warrants are to be issued under debt warrant agreements to
be entered  into between  ML&Co.  and a bank or trust  company,  as debt warrant
agent as set forth in the prospectus  supplement  relating to the specific issue
of Debt Warrants being offered. We have filed a copy of the form of debt warrant
agreement,  including  the form of warrant  certificates  representing  the Debt
Warrants,  reflecting  the  alternative  provisions  to be  included in the debt
warrant  agreements  that  will be  entered  into  with  respect  to  particular
offerings of Debt Warrants, as an exhibit to the registration statement of which
this prospectus is a part. The following summaries of the material provisions of
the debt warrant  agreement and the debt warrant  certificates  are not complete
and are subject to, and are qualified in their entirety by reference to, all the
provisions  of the debt warrant  agreement  and the debt  warrant  certificates,
respectively, including the definitions of terms.
    

TERMS OF THE DEBT WARRANTS

   
     The  applicable  prospectus  supplement  will  describe  the  terms  of the
specific  issue of Debt  Warrants  being  offered,  the debt  warrant  agreement
relating to the Debt Warrants and the debt warrant certificates representing the
Debt Warrants, including the following:

          o    the  designation  and  aggregate  principal  amount  of the  debt
               securities  that  holder  of a Debt  Warrant  may  purchase  upon
               exercise of the Debt  Warrant and the price at which the purchase
               may be made;
    

          o    the terms of the debt securities purchasable upon exercise of the
               Debt  Warrants,  including  whether the debt  securities  will be
               senior debt securities or subordinated debt securities;

          o    the  procedures  and  conditions  relating to the exercise of the
               Debt Warrants;

   
          o    the  designation  and terms of any debt securities with which the
               Debt Warrants are issued,  including  whether the debt securities
               will be senior debt  securities or  subordinated  debt securities
               and under which indenture the debt securities will be issued;
    

          o    the number of Debt Warrants issued with each debt security;

   
          o    any date on and after  which the Debt  Warrants  and any  related
               debt securities are separately transferable;
    

          o    the date on which the right to exercise the Debt Warrants begins;

          o    date on which the right to exercise the Debt Warrants expires;

   
          o    whether  the  Debt  Warrants  represented  by  the  debt  warrant
               certificates will be issued in registered or bearer form, and, if
               registered, where they may be transferred and registered;
    

          o    any circumstances which will cause the Debt Warrants to be deemed
               to be automatically exercised;

          o    any material risk factors relating to the Debt Warrants;

   
          o    the identity of the debt warrant agent; and

          o    any other terms of the Debt Warrants  which are not  inconsistent
               with the provisions of the debt warrant agreement.

     Holders  may  exchange  debt  warrant  certificates  for new  debt  warrant
certificates of different  denominations.  Holders may exercise Debt Warrants at
the  corporate  trust  office  of the debt  warrant  agent or any  other  office
indicated in the applicable prospectus supplement.  Before the exercise of their
Debt  Warrants,  holders  of Debt  Warrants  will not have any of the  rights of
holders of the debt  securities  that may be purchased upon exercise of the Debt
Warrants  and will not be entitled  to payment or delivery of any amounts  which
may  be due on  the  debt  securities  purchasable  upon  exercise  of the  Debt
Warrants.

     Prospective  purchasers of Debt Warrants  should be aware that special U.S.
Federal  income tax,  accounting and other  considerations  may be applicable to
instruments  such as Debt Warrants and to the debt securities  purchasable  upon
exercise of the Debt Warrants.  The prospectus  supplement relating to any issue
of Debt Warrants will describe these considerations.
    

BOOK-ENTRY PROCEDURES

   
     Except  as  may  otherwise  be  provided  in  the   applicable   prospectus
supplement,  the Debt Warrants will be issued in the form of global debt warrant
certificates,  registered in the name of a depositary or its nominee.  Except as
may otherwise be provided in the applicable  prospectus  supplement,  beneficial
owners will not be entitled to receive definitive certificates representing Debt
Warrants  unless the depositary is unwilling or unable to continue as depositary
or  ML&Co.   decides  to  have  the  Debt  Warrants  represented  by  definitive
certificates.  A beneficial  owner's interest in a Debt Warrant will be recorded
on or through the records of the brokerage  firm or other entity that  maintains
the beneficial owner's account.  In turn, the total number of Debt Warrants held
by an  individual  brokerage  firm for its  clients  will be  maintained  on the
records  of the  depositary  in the  name of the  brokerage  firm or its  agent.
Transfer of  ownership  of any Debt  Warrant  will be effected  only through the
selling beneficial owner's brokerage firm.
    

EXERCISE OF DEBT WARRANTS

   
     Each Debt  Warrant will entitle the holder to purchase for cash a principal
amount of debt  securities at the exercise  price set forth in, or determined in
the manner set forth in,  the  applicable  prospectus  supplement.  Holders  may
exercise Debt Warrants at any time up to the close of business on the expiration
date set  forth in the  applicable  prospectus  supplement.  After  the close of
business on the expiration date, unexercised Debt Warrants will become void.

     Holders  may  exercise  Debt  Warrants  in  the  manner  described  in  the
applicable prospectus supplement. Upon receipt of payment and properly completed
and duly executed debt warrant  certificate at the corporate trust office of the
debt warrant agent or any other office  indicated in the  applicable  prospectus
supplement,  ML&Co.  will, as soon as  practicable,  forward the debt securities
purchased.   If less  than  all of the  Debt  Warrants  represented  by any debt
warrant certificate are exercised, a new debt warrant certificate will be issued
for the remaining amount of Debt Warrants.
    

LISTING

     ML&Co.  may  list  an  issue  of Debt  Warrants  on a  national  securities
exchange. Any listing will be specified in the applicable prospectus supplement.

                        DESCRIPTION OF CURRENCY WARRANTS

     ML&Co. may issue Currency Warrants either in the form of:

     o    Currency Put Warrants entitling the holders to receive from ML&Co. the
          cash settlement value in U.S. dollars of the right to sell a specified
          amount  of a  specified  foreign  currency  or  currency  units  for a
          specified amount of U.S. dollars, or

     o    Currency  Call  Warrants  entitling the holders to receive from ML&Co.
          the cash settlement  value in U.S.  dollars of the right to purchase a
          specified  amount of a specified  foreign  currency or units of two or
          more currencies for a specified amount of U.S. dollars.

   
     ML&Co.  may  issue the  Currency  Warrants  under a  currency  put  warrant
agreement or a currency call warrant  agreement,  as  applicable,  to be entered
into between ML&Co.  and a bank or trust company,  as currency  warrant agent as
set forth in the applicable  prospectus supplement relating to Currency Warrants
being  offered.  Copies of the  forms of  currency  put  warrant  agreement  and
currency  call  warrant   agreement,   including   the  forms  of   certificates
representing  the Currency Put Warrants and Currency Call  Warrants,  reflecting
the provisions to be included in the currency  warrant  agreements  that will be
entered into with respect to  particular  offerings  of Currency  Warrants,  are
filed as exhibits to the  registration  statement of which this  prospectus is a
part. The following summaries of the material provisions of the currency warrant
agreements  and the  currency  warrant  certificates  are not  complete  and are
subject  to,  and are  qualified  in their  entirety  by  reference  to, all the
provisions  of  the  currency  warrant   agreements  and  the  currency  warrant
certificates, respectively, including the definitions of terms.
    

TERMS OF THE CURRENCY WARRANTS

   
     The  applicable  prospectus  supplement  will  describe  the  terms  of the
specific  issue  of  Currency  Warrants  being  offered,  the  currency  warrant
agreement   relating  to  the  Currency   Warrants  and  the  currency   warrant
certificates representing the Currency Warrants, including the following:
    

     o    whether the Currency Warrants are Currency Put Warrants, Currency Call
          Warrants, or both;

     o    the formula for determining the cash settlement value of each Currency
          Warrant;

     o    the procedures and conditions relating to the exercise of the Currency
          Warrants;

     o    any  circumstances  that will cause the Currency Warrants to be deemed
          to be automatically exercised;

     o    any minimum number of Currency Warrants which must be exercised at any
          one time, other than upon automatic exercise;

   
     o    the date on which the right to exercise the Currency  Warrants  begins
          and the date on which  the right to  exercise  the  Currency  Warrants
          expires, which may be the same date;
    

     o    any material risk factors relating to the Currency Warrants;

   
     o    the identity of the currency warrant agent; and

     o    any other terms of the  Currency  Warrants  that are not  inconsistent
          with the provisions of the applicable currency warrant agreement.

     Prospective  purchasers of Currency  Warrants  should be aware that special
U.S. Federal income tax,  accounting and other  considerations may be applicable
to instruments such as Currency Warrants.  The prospectus supplement relating to
any issue of Currency  Warrants  will  describe  these  considerations,  if they
apply.
    

BOOK-ENTRY PROCEDURES

   
     Except  as  may  otherwise  be  provided  in  the   applicable   prospectus
supplement,  the Currency Warrants will be issued in the form of global currency
warrant certificates,  registered in the name of a depositary or its nominee. In
that  case,  beneficial  owners  will  not be  entitled  to  receive  definitive
certificates  representing  Currency Warrants unless the depositary is unwilling
or unable to  continue  as  depositary  or ML&Co.  decides to have the  Currency
Warrants represented by definitive  certificates.  A beneficial owner's interest
in a  Currency  Warrant  will be  recorded  on or  through  the  records  of the
brokerage firm or other entity that maintains a beneficial  owner's account.  In
turn, the total number of Currency Warrants held by an individual brokerage firm
for its clients will be maintained on the records of the  depositary in the name
of the  brokerage  firm or its agent.  Transfer  of  ownership  of any  Currency
Warrant will be effected only through the selling  beneficial  owner's brokerage
firm.
    

EXERCISE OF CURRENCY WARRANTS

   
     Each Currency  Warrant will entitle the holder to the cash settlement value
of that  Currency  Warrant on the  applicable  exercise date as described in the
applicable  prospectus  supplement.  If a  Currency  Warrant  has more  than one
exercise date and is not exercised  before the time  specified in the applicable
prospectus supplement,  on the fifth business day preceding the expiration date,
the Currency Warrants will be deemed automatically exercised.
    

LISTING

   
     ML&Co.  will apply to list each issue of  Currency  Warrants  on a national
securities exchange.  In the event that the Currency Warrants are delisted from,
or permanently suspended from trading on, any exchange,  the expiration date for
the exercise of the Currency  Warrants will be the date the delisting or trading
suspension becomes effective and Currency Warrants not previously exercised will
be deemed automatically  exercised on the business day immediately preceding the
expiration date. Under the applicable  currency warrant  agreement,  ML&Co. will
agree not to seek  delisting of the Currency  Warrants,  or  suspension of their
trading, on any exchange.
    


<PAGE>


                          DESCRIPTION OF INDEX WARRANTS

   
     ML&Co.  may issue from time to time Index Warrants  consisting of index put
warrants or index call warrants.  Subject to applicable law, ML&Co.  will pay or
deliver consideration on each Index Warrant in an amount determined by reference
to the level or value of an index such as:
    

     o    an equity or debt  security,  or a  portfolio  or basket of indices or
          securities, which may include the price or yield of securities;

     o    any statistical  measure of economic or financial  performance,  which
          may include any currency or consumer price, or mortgage index; or

     o    the price or value of any  commodity or any other item or index or any
          combination.

   
     The payment or delivery of any  consideration on any index put warrant will
be determined by the decrease in the level or value of the applicable  index and
the payment or delivery of any  consideration  on any index call warrant will be
determined by the increase in the level or value of the applicable Index.

     The Index Warrants  involve a high degree of risk,  including the risk that
the Index Warrants will expire  without value other than any Minimum  Expiration
Value,  as defined below.  Investors  should  therefore be prepared to sustain a
total  loss  of the  purchase  price  of the  Index  Warrants,  other  than  any
applicable  Minimum  Expiration Value.  Investors who consider  purchasing Index
Warrants should be experienced  with respect to options and option  transactions
and  reach  an  investment   decision  only  after  carefully   considering  the
suitability of the Index Warrants in light of their particular circumstances and
the information set forth below as well as additional  information  contained in
the prospectus supplement relating to the Index Warrants.

METHOD OF ISSUANCE

     Index  Warrants  issued without a Minimum  Expiration  Value will be issued
under one or more index warrant agreements to be entered into between ML&Co. and
a bank or trust  company,  as  index  warrant  agent,  all as  described  in the
prospectus  supplement  relating to the specific  issue of Index  Warrants.  The
index warrant agent will act solely as the agent of ML&Co.  under the applicable
index warrant  agreement and will not assume any obligation or  relationship  of
agency  or trust for or with any index  warrantholders.  A single  bank or trust
company  may act as  index  warrant  agent  for  more  than  one  issue of Index
Warrants.

     Index Warrants issued with a Minimum  Expiration Value will be issued under
one or more index warrant trust indentures to be entered into between ML&Co. and
a corporation or other person  permitted to so act by the Trust Indenture Act of
1939,  as amended from time to time,  to act as index  warrant  trustee,  all as
described in the prospectus supplement relating to the Index Warrants. Any index
warrant trust  indenture will be qualified under the Trust Indenture Act. To the
extent allowed by the Trust  Indenture Act, a single  qualified  corporation may
act as index warrant trustee for more than one issue of Index Warrants.

     ML&Co.  has filed forms of index warrant  agreement and index warrant trust
indenture and the related global index warrant  certificates  as exhibits to the
registration  statement of which this  prospectus  is a part.  The summaries set
forth in this section of the material provisions of the index warrant agreement,
the index warrant trust indenture and global index warrant  certificates are not
complete,  are subject to, and are qualified in their  entirety by reference to,
all the  provisions  of the index  warrant  agreement,  the index  warrant trust
indenture and global index warrant certificates, respectively.

     Unless  otherwise  specified  in the  accompanying  prospectus  supplement,
payments,  if any,  upon  exercise  of the Index  Warrants  will be made in U.S.
dollars.  The Index  Warrants  will be offered on terms to be  determined at the
time of sale.  ML&Co.  will have the right to reopen a  previous  issue of Index
Warrants  and to issue  additional  Index  Warrants  of that issue  without  the
consent of any index warrantholder.

RANKING

     The Index Warrants are unsecured contractual obligations of ML&Co. and will
rank  equally  with its other  unsecured  contractual  obligations  and with its
unsecured and  unsubordinated  debt.  Because ML&Co. is a holding  company,  the
right of  ML&Co.  and its  creditors,  including  the index  warrantholders,  to
participate  in any  distribution  of the  assets  of any  subsidiary  upon  its
liquidation or reorganization  or otherwise is necessarily  subject to the prior
claims of  creditors of the  subsidiary,  except to the extent that a bankruptcy
court may recognize claims of ML&Co. itself as a creditor of the subsidiary.  In
addition,  dividends,  loans and advances from certain  subsidiaries,  including
MLPF&S, to ML&Co. are restricted by net capital  requirements under the Exchange
Act and under rules of certain exchanges and other regulatory bodies.
    

TERMS OF THE INDEX WARRANTS

   
     The applicable  prospectus  supplement  will describe the specific issue of
Index Warrants being offered,  the indenture or agreement  under which the Index
Warrants will be issued, as the case may be, and the index warrant  certificates
representing the Index Warrants, including the following:
    

     o    whether the Index  Warrants  to be issued will be Index Put  Warrants,
          Index Call Warrants or both;

     o    the aggregate  number and initial  public  offering  price or purchase
          price;

   
     o    the applicable index;

     o    whether the Index Warrants will be deemed  automatically  exercised as
          of a specified  date or whether the Index  Warrants  may be  exercised
          during a period and the date on which the right to exercise  the Index
          Warrants commences and the date on which the exercise right expires;
    

     o    the  manner in which  the  Index  Warrants  may be  exercised  and any
          restrictions on, or other special provisions relating to, the exercise
          of the Index Warrants;

     o    any minimum number of the Index Warrants exercisable at any one time;

   
     o    any maximum number of the Index Warrants that may, subject to ML&Co.'s
          election, be exercised by all index  warrantholders,  or by any person
          or entity, on any day;

     o    any  provisions  permitting  an index  warrantholder  to  condition an
          exercise  notice on the  absence of certain  specified  changes in the
          level of the applicable  index after the exercise date, any provisions
          permitting  ML&Co. to suspend  exercise of the Index Warrants based on
          market  conditions  or  other  circumstances  and  any  other  special
          provision relating to the exercise of the Index Warrants;
    

     o    any provisions for the automatic  exercise of the Index Warrants other
          than at the expiration date;

     o    any provisions permitting ML&Co. to cancel the Index Warrants upon the
          occurrence of certain events;

     o    any additional circumstances that would constitute an Event of Default
          under the Index Warrants;

     o    the method of determining:

          o    the payment or delivery,  if any, to be made in  connection  with
               the  exercise  or  deemed  exercise  of the Index  Warrants  (the
               "Settlement Value "),

          o    the  minimum  payment  or  delivery,  if  any,  to be  made  upon
               expiration  of  the  Index  Warrants  (the  "Minimum   Expiration
               Value"),

          o    the payment or delivery to be made upon the exercise of any right
               which ML&Co. may have to cancel the Index Warrants, and

   
     o    the value of the index;

     o    in the case of Index  Warrants  relating  to an index  for  which  the
          trading  prices of  underlying  securities,  commodities  or rates are
          expressed in a foreign currency,  the method of converting  amounts in
          the relevant foreign currency or currencies into U.S. dollars,  or any
          other  currency or composite  currency in which the Index Warrants are
          payable;

     o    any  method  of  providing   for  a  substitute   index  or  otherwise
          determining  the payment or delivery to be made in connection with the
          exercise of the Index  Warrants  if the index  changes or ceases to be
          made available by its publisher;

     o    any time or times at which ML&Co. will make payment or delivery on the
          Index Warrants following exercise or automatic exercise;
    

     o    any provisions for issuing the Index Warrants in other than book-entry
          form;

   
     o    if the Index Warrants are not issued in book-entry  form, any place or
          places at which ML&Co.  will make payment or delivery on  cancellation
          and any Minimum Expiration Value of the Index Warrants;
    

     o    any  circumstances  that will cause the Index Warrants to be deemed to
          be automatically exercised;

     o    any material risk factors relating to the Index Warrants;

     o    the identity of the Index Warrant Agent; and

   
     o    any other terms of the Index Warrants which are not inconsistent  with
          the provisions of the index warrant agreement.

     Prospective  purchasers of Index Warrants should be aware that special U.S.
Federal  income tax,  accounting and other  considerations  may be applicable to
instruments such as the Index Warrants.  The prospectus  supplement  relating to
any issue of Index Warrants will describe these considerations, if they apply.

PAYMENT AND DELIVERY

     If  specified,  and under the  circumstances  described  in the  prospectus
supplement:

     o    ML&Co. will pay or deliver to each index warrantholder an amount equal
          to the  greater  of the  applicable  Settlement  Value  and a  Minimum
          Expiration Value of the Index Warrants;

     o    upon cancellation of the Index Warrants by ML&Co. which may occur upon
          specified   events,   ML&Co.   will  pay  or  deliver  to  each  index
          warrantholder an amount specified in the prospectus supplement; and
    

     o    following the  occurrence of an  extraordinary  event,  the Settlement
          Value of an Index Warrant may, at the option of ML&Co.,  be determined
          on a different basis,  including in connection with automatic exercise
          at expiration.

   
     Unless otherwise specified in the related prospectus supplement,  the Index
Warrants will be deemed to be  automatically  exercised  upon  expiration or any
earlier date that may be specified.  Upon any automatic  exercise,  ML&Co.  will
deliver or pay to each index  warrantholder  an amount  equal to the  Settlement
Value of the Index  Warrants,  except that  holders of Index  Warrants  having a
Minimum Expiration Value will be entitled to receive a payment or delivery equal
to the greater of the  Settlement  Value and the applicable  Minimum  Expiration
Value.  The Minimum  Expiration  Value may be either a predetermined  payment or
delivery  or a payment  or  delivery  that  varies  during the term of the Index
Warrants in accordance with a schedule or formula.  Any Minimum Expiration Value
applicable  to  an  issue  of  Index   Warrants,   as  well  as  any  additional
circumstances resulting in the automatic exercise of the Index Warrants, will be
specified in the applicable prospectus supplement.

CANCELLATION OR POSTPONEMENT

     If so specified in the applicable prospectus supplement,  ML&Co. may cancel
the Index Warrants.  In addition,  ML&Co.  may delay or postpone the exercise or
valuation of, or payment or delivery for, the Index Warrants upon the occurrence
of an  extraordinary  event.  Any  extraordinary  events relating to an issue of
Index Warrants will be described in the applicable prospectus  supplement.  Upon
cancellation,  the related index warrantholders will be entitled to receive only
the applicable  payment or delivery on cancellation  specified in the applicable
prospectus  supplement.  The amount payable or deliverable upon cancellation may
be either a predetermined amount or an amount that varies during the term of the
Index Warrants in accordance with a schedule or formula.

WAIVER OF DEFAULT

     If ML&Co.  defaults with respect to any of its obligations  under any Index
Warrants  issued with a Minimum  Expiration  Value under an index  warrant trust
indenture, the index warrantholders of a majority in interest of all outstanding
Index Warrants may waive a default, except a default:
    

     o    in the payment or delivery of the Settlement Value, Minimum Expiration
          Value or payment or delivery of any amount  upon  cancellation  of the
          Index Warrants; or

   
     o    in respect of a covenant or provision of the applicable  index warrant
          trust  indenture  which  cannot be  modified  or amended  without  the
          consent of each index  warrantholder of each outstanding Index Warrant
          affected.

MODIFICATION

     ML&Co.  and the index warrant agent or index warrant  trustee,  as the case
may be, may amend any index warrant agreement or index warrant indenture and the
terms of the related Index Warrants by a supplemental  agreement or supplemental
indenture (each, a "Supplemental Agreement"), without the consent of the holders
of any Index Warrants, for the purpose of:

     o    curing any ambiguity,  or of curing,  correcting or supplementing  any
          defective or inconsistent provision, or of making any other provisions
          with respect to matters or questions  arising  under the index warrant
          agreement or index warrant trust indenture,  as the case may be, which
          are not inconsistent  with the provisions of the respective  agreement
          or indenture or of the Index Warrants,

     o    evidencing  the  succession  to  ML&Co.  and  the  assumption  by  the
          successor  of  ML&Co.'s  covenants  contained  in  the  index  warrant
          agreement or the index  warrant trust  indenture,  as the case may be,
          and the Index Warrants,

     o    appointing a successor depositary,

     o    evidencing  and  providing  for the  acceptance  of  appointment  by a
          successor index warrant agent or index warrant trustee with respect to
          the Index Warrants, as the case may be,

     o    adding  to the  covenants  of  ML&Co.,  for the  benefit  of the index
          warrantholders  or  surrendering  any  right or power  conferred  upon
          ML&Co.  under the  index  warrant  agreement  or index  warrant  trust
          indenture, as the case may be,
    

     o    issuing Index Warrants in definitive form, or

   
     o    amending the index warrant agreement or index warrant trust indenture,
          as the  case  may  be,  in any  manner  which  ML&Co.  may  deem to be
          necessary or desirable  and which will not  materially  and  adversely
          affect the interests of the Index Warrantholders.

     ML&Co.  and the  index  warrant  agent may also  amend  any  index  warrant
agreement or index warrant trust indenture, as the case may be, and the terms of
the related Index Warrants, by a Supplemental Agreement, with the consent of the
index  warrantholders  holding  not  less  than 66 2/3% in  number  of the  then
outstanding  unexercised  Index  Warrants  affected  by the  amendment,  for the
purpose of adding any provisions to or changing in any manner or eliminating any
of the  provisions  of the  index  warrant  agreement  or  index  warrant  trust
indenture,  as the case may be, or of  modifying in any manner the rights of the
index warrantholders.  However,  without the consent of each index warrantholder
affected, no amendment may be made that:
    

     o    changes the determination, or any aspects of the determination, of the
          Settlement   Value  or  any   payment  or   delivery  to  be  made  on
          cancellation, or any Minimum Expiration Value of the Index Warrants so
          as to reduce  the  payment or  delivery  to be made upon  exercise  or
          deemed exercise,

   
     o    shortens  the period of time during  which the Index  Warrants  may be
          exercised,  or otherwise materially and adversely affects the exercise
          rights of the index warrantholders, or

     o    reduces the number of outstanding Index Warrants, the consent of whose
          holders is required for amendment of the index warrant agreement,  the
          index  warrant  trust  indenture  or the  terms of the  related  Index
          Warrants.
    

EVENTS OF DEFAULT

   
     Specified events in bankruptcy, insolvency or reorganization of ML&Co. will
constitute  Events of Default  with respect to Index  Warrants  having a Minimum
Expiration Value which are issued under an index warrant trust  indenture.  Upon
the occurrence of an Event of Default,  the holders of 25% of unexercised  Index
Warrants  may  elect  to  receive  a  settlement  payment  or  delivery  for any
unexercised Index Warrants.  Any settlement payment or delivery will immediately
become due to the index  warrantholders  upon any election.  Assuming  ML&Co. is
able to  satisfy  its  obligations  when  due  under  the  Index  Warrants,  the
settlement  payment or delivery  will be an amount  equal to the market value of
the  Index  Warrants  as  of  the  date  ML&Co.  is  notified  of  the  intended
liquidation.  The market value of the Index  Warrants  will be  determined  by a
nationally  recognized  securities  broker-dealer  unaffiliated  with ML&Co. and
mutually selected by ML&Co. and the index warrant trustee.
    

MERGER, CONSOLIDATION, SALE, LEASE OR OTHER DISPOSITIONS

     ML&Co.  may  consolidate  or merge with or into any other  corporation  and
ML&Co. may sell,  lease or convey all or substantially  all of its assets to any
corporation, provided that:

     o    the  resulting  corporation,  if other than ML&Co.,  is a  corporation
          organized and existing  under the laws of the United States of America
          or any U.S. state and assumes all of ML&Co.'s obligations to:

          o    pay or deliver the Settlement Value, any Minimum Expiration Value
               or any consideration payable or deliverable upon cancellation, if
               applicable  with respect to all the  unexercised  Index Warrants;
               and

   
          o    perform and observe all of the  obligations and conditions of the
               index warrant agreement or index warrant trust indenture,  as the
               case may be, to be performed or observed by ML&Co.; and

     o    ML&Co.  or the  successor  corporation,  as the case  may be,  is not,
          immediately  after any merger or  consolidation,  in default under the
          index warrant agreement or index warrant trust indenture,  as the case
          may be.
    

ENFORCEABILITY OF RIGHTS BY INDEX WARRANTHOLDERS

   
     Any index  warrantholder  may,  without the  consent of the  related  index
warrant agent,  enforce by appropriate  legal action, in and for its own behalf,
its right to exercise, and receive payment or delivery for, its Index Warrants.

BOOK-ENTRY PROCEDURES

     Except  as  may  otherwise  be  provided  in  the   applicable   prospectus
supplement, the Index Warrants will be issued in book-entry form and represented
by global Index Warrants, registered in the name of a depositary or its nominee.
In that case, index  warrantholders  will not be entitled to receive  definitive
certificates  representing Index Warrants, unless the depositary is unwilling or
unable to continue as  depositary or ML&Co.  decides to have the Index  Warrants
represented  by definitive  certificates.  A beneficial  owner's  interest in an
Index  Warrant  represented  by a global  Index  Warrant  will be recorded on or
through the records of the  brokerage  firm or other entity that  maintains  the
beneficial owner's account.  In turn, the total number of Index Warrants held by
an individual  brokerage firm or other entity for its clients will be maintained
on the  records of the  depositary  in the name of the  brokerage  firm or other
entity or its agent. Transfer of ownership of any Index Warrant will be effected
only through the selling beneficial owner's brokerage firm.

LISTING

     ML&Co.  may  list an  issue  of Index  Warrants  on a  national  securities
exchange. Any listing will be specified in the applicable prospectus supplement.
    

                         DESCRIPTION OF PREFERRED STOCK

   
     The following  description  sets forth  certain  general terms of preferred
stock which ML&Co.  may issue.  The terms of any series of the  preferred  stock
will be  described  in the  applicable  prospectus  supplement  relating  to the
preferred  stock  being  offered.  The  description  set forth  below and in any
prospectus  supplement is not complete,  and is subject to, and qualified in its
entirety by reference to, ML&Co.'s  restated  certificate of  incorporation,  as
amended,  which is filed as an exhibit to the  registration  statement  of which
this prospectus is a part, and the certificate of designations  relating to each
particular  series of the preferred  stock,  which was or will be filed with the
SEC at or before the issuance of the series of preferred stock.
    

TERMS OF THE PREFERRED STOCK

   
     Under ML&Co.'s restated certificate of incorporation,  ML&Co. is authorized
to issue up to 25,000,000  shares of preferred stock, par value $1.00 per share.
The Board of  Directors of ML&Co.  has the  authority,  without  approval of the
stockholders,  to issue all of the shares of preferred stock which are currently
authorized in one or more series and to fix the number of shares and the rights,
preferences,  privileges,  qualifications,  restrictions and limitations of each
series. As of December 25, 1998, ML&Co. had 24,957,500 shares of preferred stock
available for issuance.

     ML&Co.  has authorized the issuance of shares of Series A junior  preferred
stock,  par value $1.00 per share,  of ML&Co.  upon exercise of preferred  share
purchase  rights  associated  with each share of common stock  outstanding.  See
"Description  of Common  Stock--Rights  to  Purchase  Series A Junior  Preferred
Stock".
    

     In addition, as described under "Description of Depositary Shares", ML&Co.,
at its option, instead of offering full shares of any series of preferred stock,
may offer depositary shares evidenced by depositary receipts,  each representing
a fraction of a share of the  particular  series of  preferred  stock issued and
deposited  with a depositary.  The fraction of a share of preferred  stock which
each depositary share represents will be set forth in the prospectus  supplement
relating to the depositary shares.

     The applicable prospectus supplement will describe the terms of each series
of preferred stock, including, where applicable, the following:

     o    the designation,  stated value,  liquidation  preference and number of
          shares offered;

     o    the offering price or prices;

   
     o    the dividend  rate or rates,  or method of  calculation,  the dividend
          periods,  the date on which  dividends  shall be payable  and  whether
          dividends are  cumulative or  noncumulative  and, if  cumulative,  the
          dates from which dividends begin to cumulate;
    

     o    any redemption or sinking fund provisions;

     o    any conversion or exchange provisions;

     o    any voting rights;

     o    to the extent permitted by applicable law, whether the preferred stock
          will be issued in certificated or book-entry form;

     o    whether the  preferred  stock will be listed on a national  securities
          exchange;

     o    information with respect to any book-entry procedures; and

   
     o    any  additional  rights,  preferences,   privileges,  limitations  and
          restrictions  of the preferred stock which are not  inconsistent  with
          the provisions of the certificate of incorporation.

     The preferred  stock will be, when issued against  payment,  fully paid and
nonassessable.  Holders  will have no  preemptive  rights to  subscribe  for any
additional  securities which ML&Co. may issue. Unless otherwise specified in the
applicable prospectus  supplement,  the shares of each series of preferred stock
will rank equally with all other outstanding series of preferred stock issued by
ML&Co.  as to payment of  dividends,  other than with respect to  cumulation  of
dividends,  and as to the distribution of assets upon liquidation,  dissolution,
or winding up of ML&Co.  As of December  25, 1998,  there were 42,500  shares of
ML&Co.'s 9% Cumulative  Preferred  Stock,  Series A (the "9%  Preferred  Stock")
represented  by  17,000,000  depositary  shares  and one  Special  Voting  Share
outstanding. See "--Outstanding Preferred Stock". Each series of preferred stock
will rank  senior to the common  stock,  and any other  stock of ML&Co.  that is
expressly made junior to that series of preferred stock.
    

     Unless  otherwise  specified  in  the  applicable  prospectus   supplement,
Citibank,  N.A.,  will be the  transfer  agent,  dividend  disbursing  agent and
registrar for the shares of the preferred stock.

     Because ML&Co. is a holding  company,  its rights and the rights of holders
of its securities,  including the holders of preferred  stock, to participate in
the  distribution of assets of any subsidiary of ML&Co.  upon its liquidation or
recapitalization  will  be  subject  to the  prior  claims  of the  subsidiary's
creditors and preferred stockholders,  except to the extent ML&Co. may itself be
a  creditor  with  recognized  claims  against  the  subsidiary  or a holder  of
preferred stock of the subsidiary.

DIVIDENDS AND DISTRIBUTIONS

     Holders of shares of the preferred  stock will be entitled to receive,  as,
if and when declared by the Board of Directors of ML&Co.,  or a duly  authorized
committee of the Board of  Directors,  out of funds  legally  available  for the
payment of dividends,  cash dividends at the rate set forth in, or calculated in
accordance with the formula set forth in, the prospectus  supplement relating to
the preferred stock being offered.

   
     Dividends on the  preferred  stock may be cumulative  or  noncumulative  as
provided in the applicable  prospectus  supplement.  Dividends on the cumulative
preferred  stock will  accumulate  from the date of  original  issue and will be
payable quarterly in arrears on the dates specified in the applicable prospectus
supplement.  If any  date  so  specified  as a  dividend  payment  date is not a
business  day,  declared  dividends on the  preferred  stock will be paid on the
immediately succeeding business day, without interest. The applicable prospectus
supplement  will set forth the  applicable  dividend  period  with  respect to a
dividend  payment date. If the Board of Directors of ML&Co. or a duly authorized
committee of the Board of  Directors,  fails to declare a dividend on any series
of noncumulative  preferred stock for any dividend period,  ML&Co.  will have no
obligation  to pay a dividend for that period,  whether or not dividends on that
series of  noncumulative  preferred  stock are declared for any future  dividend
period.  Dividends on the preferred  stock will be payable to record  holders as
they appear on the stock books of ML&Co.  on each record date,  not more than 30
nor less than 15 days preceding the  applicable  payment date, as shall be fixed
by the Board of Directors of ML&Co. or a duly authorized  committee of the Board
of Directors.
    

     No  dividends  will be  declared  or paid or set apart for  payment  on the
preferred stock of any series ranking,  as to dividends,  equally with or junior
to any other series of preferred stock for any period unless dividends have been
or are contemporaneously  declared and paid or declared and a sum sufficient for
the payment of those dividends has been set apart for,

     o    in the  case of  cumulative  preferred  stock,  all  dividend  periods
          terminating  on or  before  the  date of  payment  of full  cumulative
          dividends, or

     o    in  the  case  of  noncumulative   preferred  stock,  the  immediately
          preceding dividend period.

     When dividends are not paid in full upon any series of preferred stock, and
any other  preferred  stock ranking  equally as to dividends with that series of
preferred stock, all dividends  declared upon shares of that series of preferred
stock and any other  preferred  stock  ranking  equally as to dividends  will be
declared  pro rata so that the amount of  dividends  declared  per share on that
series of preferred  stock and any other  preferred  stock ranking equally as to
dividends  will in all cases  bear to each  other the same  ratio  that  accrued
dividends  per share on the  shares of that  series of  preferred  stock and the
other preferred stock bear to each other. In the case of noncumulative preferred
stock, any accrued dividends  described in the immediately  preceding  paragraph
will not  include  any  cumulation  in  respect  of unpaid  dividends  for prior
dividend periods.

     Except as  provided in the  immediately  preceding  paragraph,  unless full
dividends on all  outstanding  shares of any series of preferred stock have been
declared and paid,

     o    in the case of a series of cumulative  preferred  stock,  for all past
          dividend periods, or

     o    in the case of  noncumulative  preferred  stock,  for the  immediately
          preceding dividend period,

then:

     o    ML&Co.  may not declare  dividends  or pay or set aside for payment or
          other  distribution  on any of its capital stock ranking  junior to or
          equally  with that series of  preferred  stock as to dividends or upon
          liquidation,  other than dividends or distributions paid in shares of,
          or options, warrants or rights to subscribe for or purchase shares of,
          the common stock of ML&Co.  or other capital  stock of ML&Co.  ranking
          junior to that  series of  preferred  stock as to  dividends  and upon
          liquidation, and

     o    other than in connection  with the  distribution  or trading of any of
          its  capital  stock,  ML&Co.  may not redeem,  purchase  or  otherwise
          acquire any of its capital  stock  ranking  junior to or equally  with
          that series of preferred  stock as to  dividends or upon  liquidation,
          for any  consideration  or any moneys paid to or made  available for a
          sinking  fund for the  redemption  of any shares of any of its capital
          stock,  except by  conversion  or exchange for capital stock of ML&Co.
          ranking  junior to that series of preferred  stock as to dividends and
          upon liquidation.

     Unless otherwise  specified in the applicable  prospectus  supplement,  the
amount of dividends  payable for any period shorter than a full dividend  period
shall be computed on the basis of twelve 30-day  months,  a 360-day year and the
actual number of days elapsed in any period of less than one month.

     As of the date of this  prospectus,  subsidiaries  of  ML&Co.  have  issued
$2.575 billion of perpetual Trust Originated Preferred  Securities/SM/("TOPrS").
In connection  with the issuance of the TOPrS,  ML&Co.  has agreed,  among other
things,  that if full distributions on the TOPrS have not been paid or set apart
for payment or if ML&Co. is in default of their related  guarantee  obligations,
ML&Co.,  with  certain  exceptions,  will not  declare  or pay  dividends,  make
distributions  with  respect  to, or  redeem,  purchase  or  acquire,  or make a
liquidation  payment with  respect to any of its capital  stock,  including  the
preferred stock.

LIQUIDATION PREFERENCE

     Upon any voluntary or involuntary liquidation, dissolution or winding up of
ML&Co.,  the holders of the preferred  stock will have  preference  and priority
over the common stock of ML&Co.  and any other class of stock of ML&Co.  ranking
junior to the preferred stock upon  liquidation,  dissolution or winding up, for
payments out of or  distributions  of the assets of ML&Co.  or proceeds from any
liquidation,  whether from capital or surplus, of the amount per share set forth
in the applicable  prospectus  supplement plus all accrued and unpaid dividends,
whether or not earned or  declared,  to the date of final  distribution  to such
holders.  After any liquidating  payment, the holders of preferred stock will be
entitled to no other payments.  If, in the case of any liquidation,  dissolution

______________
/SM/Service mark of Merrill Lynch & Co., Inc.

or  winding  up of  ML&Co.,  the  assets  of  ML&Co.  or the  proceeds  from any
liquidation  should be insufficient to make the full liquidation  payment in the
amount per share set forth in the applicable prospectus supplement relating to a
series of  preferred  stock,  plus all  accrued  and  unpaid  dividends  on that
preferred stock,  and liquidating  payments on any other preferred stock ranking
as to liquidation,  dissolution or winding up equally with that preferred stock,
then any  assets  and  proceeds  will be  distributed  among the  holders of the
preferred  stock and any other  preferred  stock ratably in accordance  with the
respective amounts which would be payable on those shares of preferred stock and
any other  preferred stock if all amounts payable were paid in full. In the case
of noncumulative  preferred stock, accrued and unpaid dividends will not include
cumulation of unpaid dividends from prior dividend  periods.  A consolidation or
merger  of  ML&Co.  with one or more  corporations  will not be  deemed  to be a
liquidation, dissolution or winding up, voluntary or involuntary, of ML&Co.

REDEMPTION

     If specified in the prospectus supplement relating to a series of preferred
stock being offered, ML&Co. may, at its option, at any time or from time to time
on not  less  than 30 nor  more  than 60 days  notice,  redeem  that  series  of
preferred  stock in whole or in part at the  redemption  prices and on the dates
set forth in the applicable prospectus supplement.

     If less than all  outstanding  shares of a series of preferred stock are to
be redeemed,  the selection of the shares to be redeemed  shall be determined by
lot or pro rata as may be  determined  by the Board of Directors of ML&Co.  or a
duly  authorized  committee of the Board of Directors to be equitable.  From and
after the  redemption  date,  unless  ML&Co.  is in default in providing for the
payment of the redemption  price,  dividends shall cease to accrue on the shares
of that series of preferred  stock called for  redemption  and all rights of the
holders shall cease, other than the right to receive the redemption price.

VOTING RIGHTS

     Unless otherwise described in the applicable prospectus supplement, holders
of the  preferred  stock will have no voting rights except as set forth below or
as otherwise required by law.

     Whenever  dividends  payable on the  preferred  stock are in arrears  for a
number of dividend periods,  whether or not consecutive,  which in the aggregate
is equivalent to six calendar quarters, the holders of outstanding shares of the
preferred stock, voting as a class with holders of shares of all other series of
preferred  stock ranking equally with the preferred stock either as to dividends
or the  distribution of assets upon  liquidation,  dissolution or winding up and
upon which like voting rights have been conferred and are  exercisable,  will be
entitled to vote for the election of two  additional  directors on the terms set
forth below.  These voting  rights will  continue,  in the case of any series of
cumulative  preferred stock,  until all past dividends  accumulated on shares of
cumulative  preferred  stock are paid in full and, in the case of  noncumulative
preferred stock, until all dividends on shares of noncumulative  preferred stock
are paid in full for at least one calendar  year.  Upon payment in full of these
dividends, the voting rights will terminate except as expressly provided by law.
These  voting  rights are subject to  re-vesting  in the event of each and every
subsequent  default  in the  payment  of  dividends.  Holders  of all  series of
preferred  stock which are granted  these  voting  rights and which rank equally
with the preferred stock will vote as a class,  and, unless otherwise  specified
in the applicable prospectus supplement,  each holder of shares of the preferred
stock will have one vote for each share of stock held and each other series will
have the number of votes, if any, for each share of stock held as may be granted
to them.  In the event  that the  holders of shares of the  preferred  stock are
entitled to vote as  described  in this  paragraph,  the Board of  Directors  of
ML&Co.  will be increased  by two  directors,  and the holders of the  preferred
stock will have the exclusive right as members of that class, as outlined above,
to elect two directors at the next annual meeting of stockholders.

     Upon termination of the right of the holders of the preferred stock to vote
for directors as discussed in the preceding paragraph, the term of office of all
directors then in office  elected by those holders will  terminate  immediately.
Whenever the term of office of the  directors  elected by those holders ends and
the  related  special  voting  rights  expire,  the  number  of  directors  will
automatically  be  decreased  to the  number  of  directors  as would  otherwise
prevail.

     So long as any shares of preferred stock remain  outstanding,  ML&Co. shall
not,  without  the  affirmative  vote or  consent  of the  holders  of at  least
two-thirds of the shares of the preferred stock  outstanding at the time, voting
as a class with all other series of  preferred  stock  ranking  equally with the
preferred  stock  either as to  dividends  or the  distribution  of assets  upon
liquidation,  dissolution  or winding up and upon which like voting  rights have
been  conferred  and are  exercisable,  given in person  or by proxy,  either in
writing or at a meeting:

     o    authorize,  create or issue,  or  increase  the  authorized  or issued
          amount  of,  any  class or  series  of  stock  ranking  senior  to the
          preferred   stock  with   respect  to  payment  of  dividends  or  the
          distribution of assets upon liquidation,  dissolution or winding up of
          ML&Co.; or

   
     o    amend, alter or repeal, whether by merger, consolidation or otherwise,
          the provisions of ML&Co.'s  restated  certificate of  incorporation or
          the  certificate  of  designations  of the  preferred  stock  so as to
          materially and adversely  affect any right,  preference,  privilege or
          voting power of the  preferred  stock or the holders of the  preferred
          stock;
    

provided, however, that any increase in the amount of authorized preferred stock
or the creation and issuance, or an increase in the authorized or issued amount,
of other series of preferred  stock, or any increase in the amount of authorized
shares of preferred  stock,  in each case ranking  equally with or junior to the
preferred stock with respect to the payment of dividends and the distribution of
assets upon liquidation,  dissolution or winding of ML&Co. up will not be deemed
to materially  and adversely  affect these  rights,  preferences,  privileges or
voting powers.

     The foregoing voting provisions will not apply if all outstanding shares of
preferred  stock have been redeemed or sufficient  funds have been  deposited in
trust to effect such a redemption  which is scheduled to be  consummated  within
three months after the time that such rights would otherwise be exercisable.

CONVERSION OR EXCHANGE RIGHTS

     The prospectus  supplement  relating to a series of preferred stock that is
convertible or exchangeable  will state the terms on which shares of that series
are convertible or exchangeable  into common stock,  another series of preferred
stock or debt securities.

OUTSTANDING PREFERRED STOCK

   
     At December  25,  1998,  there were  42,500  shares of 9%  Preferred  Stock
represented  by  17,000,000  depositary  shares  and one  Special  Voting  Share
outstanding.
    

     9% PREFERRED STOCK

   
     The 9% Preferred  Stock has preference  over ML&Co.'s  common stock and the
Series A junior  preferred  stock issuable under the Rights Plan described under
"Description  of Common  Stock" with respect to the payment of dividends and the
distribution of assets in the event of liquidation, dissolution or winding up of
ML&Co.  Holders of the 9% Preferred  Stock do not have any preemptive  rights to
subscribe for any additional securities which may be issued by ML&Co.  Dividends
on the 9% Preferred  Stock are cumulative and payable  quarterly at the rate per
annum of 9% of the $10,000 liquidation  preference per share.  Holders of the 9%
Preferred  Stock have no voting rights except as set forth above under "--Voting
Rights"  above.  In the  event  of any  voluntary  or  involuntary  liquidation,
dissolution  or winding up of ML&Co.,  the holders of  outstanding  shares of 9%
Preferred  Stock are entitled to receive out of assets of ML&Co.  available  for
distribution  to  stockholders  a  distribution  of  $10,000  per  share,   plus
accumulated  and  unpaid  dividends,  if  any.  The 9%  Preferred  Stock  is not
redeemable  before  December 30, 2004. On and after that date,  the 9% Preferred
Stock is redeemable  at the option of ML&Co.,  in whole at any time or from time
to time in part,  upon  not less  than 30 nor  more  than 60 days  notice,  at a
redemption price of $10,000 per share, plus accumulated and unpaid dividends, if
any.

     SPECIAL VOTING SHARE
    

     In connection  with the  acquisition  of Midland  Walwyn Inc. by ML&Co.  in
August 1998, ML&Co. issued a single share of preferred stock with special voting
rights (the "Special  Voting  Share"),  under the terms of a Voting and Exchange
Trust Agreement  entered into by Merrill Lynch & Co., Canada Ltd. ("ML Canada"),
ML&Co.  and Montreal  Trust  Company of Canada,  as trustee  (the "Voting  Trust
Agreement").  The Special Voting Share  possesses a number of votes equal to the
number of exchangeable  shares of ML Canada (the  "Exchangeable  Shares") issued
and  outstanding  from  time to  time  that  are  not  owned  by  ML&Co.  or its
affiliates,  which votes may be exercised  for the election of directors  and on
all other matters submitted to a vote of ML&Co.'s  stockholders.  The holders of
ML&Co.'s  common stock and the holder of the Special  Voting Share vote together
as a class on all matters. See "Description of Common Stock--Voting Rights". The
Special Voting Share was issued to the trustee under the Voting Trust Agreement.
The holder of the Special  Voting  Share is not  entitled to receive  dividends,
and, in the event of any liquidation,  dissolution or winding up of ML&Co., will
receive an amount equal to the par value of the Special  Voting Share.  When the
Special  Voting  Share  has  no  votes  attached  to it  because  there  are  no
Exchangeable  Shares  outstanding  not owned by ML&Co. or any of its affiliates,
the Special Voting Share will cease to have any rights.

                        DESCRIPTION OF DEPOSITARY SHARES

   
     ML&Co. may issue depositary receipts evidencing  depositary shares, each of
which will  represent  a fraction of a share of  preferred  stock.  ML&Co.  will
deposit  shares  of  preferred  stock of each  class or  series  represented  by
depositary  shares under deposit  agreements to be entered into among ML&Co.,  a
bank or trust company,  as depositary,  and the holders from time to time of the
depositary receipts. A copy of the form of deposit agreement, including the form
of certificates  representing the depositary receipts, is filed as an exhibit to
the  registration  statement of which this  prospectus is a part.  The following
summaries  of  the  material  provisions  of  the  deposit  agreements  and  the
depositary  receipt  certificates  are not  complete,  are  subject  to, and are
qualified in their  entirety by reference to, all the  provisions of the deposit
agreement and the depositary receipt certificates,  respectively,  including the
definitions of terms.
    

TERMS OF THE DEPOSITARY SHARES

   
     Depositary  receipts  issued under the  applicable  Deposit  Agreement will
evidence the depositary shares.  Immediately following the issuance and delivery
of the  preferred  stock by ML&Co.  to the  depositary,  ML&Co.  will  cause the
depositary to issue, on behalf of ML&Co.,  the depositary  receipts.  Subject to
the terms of the  applicable  deposit  agreement,  each  holder of a  depositary
receipt will be entitled,  in proportion to the fraction of a share of preferred
stock  represented by the applicable  depositary  shares,  to all the rights and
preferences  of the  preferred  stock  being  represented,  including  dividend,
voting, conversion,  redemption and liquidation rights, all as will be set forth
in the prospectus supplement relating to the depositary shares being offered.

     The  depositary  shares will have the  dividend,  liquidation,  redemption,
voting and  conversion  or  exchange  rights set forth  below  unless  otherwise
specified in the applicable  prospectus  supplement.  The applicable  prospectus
supplement  will  describe  the terms of the  specific  issue of the  depositary
shares being offered,  the deposit  agreement  relating to the depositary shares
and the depositary  receipts  evidencing the  depositary  shares,  including the
following:
    

     o    the  designation,  stated  value  and  liquidation  preference  of the
          depositary shares and the number of shares offered;

     o    the offering price or prices;

     o    the dividend  rate or rates,  or method of  calculation,  the dividend
          periods,  the dates on which  dividends  will be payable  and  whether
          dividends are  cumulative or  noncumulative  and, if  cumulative,  the
          dates from which dividends will begin to cumulate;

     o    any redemption or sinking fund provisions;

     o    any conversion or exchange provisions;

     o    any material risk factors relating to the depositary shares;

   
     o    the identity of the depositary; and

     o    any other terms of the  depositary  shares which are not  inconsistent
          with the provisions of the deposit agreement.
    

BOOK-ENTRY PROCEDURES

   
     Except  as  may  otherwise  be  provided  in  the   applicable   prospectus
supplement,  the  depositary  shares  will be  issued  in the  form of a  global
depositary receipt  certificates,  registered in the name of a depositary or its
nominee.  In that  case,  beneficial  owners  will not be  entitled  to  receive
depositary  receipts evidencing their depositary shares unless the depositary is
unwilling  or unable to continue  as  depositary  or ML&Co.  decides to have the
depositary  shares  represented by separate  depositary  receipts.  A beneficial
owner's interest in depositary shares will be recorded on or through the records
of the  brokerage  firm or other entity that  maintains the  beneficial  owner's
account.  In turn,  the total number of depositary  shares held by an individual
brokerage  firm  for  its  clients  will be  maintained  on the  records  of the
depositary in the name of the brokerage firm or its agent. Transfer of ownership
of  depositary  shares will be  effected  only  through  the selling  beneficial
owner's brokerage firm.
    

DIVIDENDS AND OTHER DISTRIBUTIONS

   
     The   depositary   will   distribute  all  cash  dividends  or  other  cash
distributions  received in respect of the preferred  stock to the record holders
of depositary receipts in proportion to the number of depositary shares owned by
those  holders,   subject  to  the   obligations  of  holders  to  file  proofs,
certificates  and other  information  and to pay certain charges and expenses to
the depositary.

     In the event of a distribution in respect of the preferred stock other than
in cash,  the  depositary  will  distribute  property  it receives to the record
holders of the depositary shares,  subject to certain  obligations of holders to
file proofs,  certificates and other  information and to pay certain charges and
expenses to the  depositary,  unless the  depositary,  after  consultation  with
ML&Co.,  determines that it is not feasible to make the  distribution,  in which
case the  depositary  may,  with the  approval of ML&Co.,  sell any property and
distribute the net proceeds from the sale to the holders.
    

WITHDRAWAL OF STOCK

   
     Unless  the  related  depositary  shares  have been  previously  called for
redemption,  upon  surrender of the depositary  receipts at the corporate  trust
office of the depositary,  the holder of the depositary  shares will be entitled
to delivery,  at the corporate  trust office of the depositary to or upon his or
her order, of the number of whole shares of the preferred stock and any money or
other property  represented by the depositary shares. If the depositary receipts
delivered by the holder evidence a number of depositary  shares in excess of the
number of depositary shares representing the number of whole shares of preferred
stock to be  withdrawn,  the  depositary  will deliver to the holder at the same
time a new depositary receipt evidencing the excess number of depositary shares.
In no event will the depositary  deliver  fractional  shares of preferred  stock
upon surrender of depositary receipts.
    

REDEMPTION OF DEPOSITARY SHARES

   
     Whenever  ML&Co.  redeems shares of preferred stock held by the depositary,
the  depositary  will  redeem  as of the  same  redemption  date the  number  of
depositary  shares  representing  shares  of the  preferred  stock so  redeemed,
provided ML&Co.  has paid in full to the depositary the redemption  price of the
preferred  stock to be  redeemed  plus an amount  equal to any  accumulated  and
unpaid  dividends on the preferred stock to the date fixed for  redemption.  The
redemption  price per depositary share will be equal to the redemption price and
any  other  amounts  per share  payable  with  respect  to the  preferred  stock
multiplied  by the fraction of a share of  preferred  stock  represented  by one
depositary share. If less than all the depositary shares are to be redeemed, the
depositary  shares to be redeemed will be selected by the lot or pro rata as may
be determined by the depositary.

     After  the  date  fixed  for  redemption,   depositary  shares  called  for
redemption  will no longer be deemed  to be  outstanding  and all  rights of the
holders of depositary shares called for redemption will cease,  except the right
to receive any moneys payable upon redemption and any money or other property to
which the holders of the depositary  shares were entitled upon  redemption  upon
surrender to the depositary of the depositary receipts evidencing the depositary
shares.
    

VOTING THE PREFERRED STOCK

   
     Upon receipt of notice of any meeting at which the holders of the preferred
stock are entitled to vote, the depositary will mail the  information  contained
in the  notice of  meeting to the  record  holders  of the  depositary  receipts
relating to that preferred  stock.  The record date for the depositary  receipts
relating to the preferred stock will be the same date as the record date for the
preferred stock.  Each record holder of the depositary shares on the record date
will be entitled to instruct  the  depositary  as to the  exercise of the voting
rights  pertaining to the amount of preferred stock represented by that holder's
depositary shares. The depositary will endeavor, insofar as practicable, to vote
the amount of preferred stock represented by the depositary shares in accordance
with those  instructions,  and ML&Co.  will agree to take all reasonable  action
which  may be  deemed  necessary  by the  depositary  in  order  to  enable  the
depositary to do so. The depositary  will not vote any shares of preferred stock
except to the  extent it  receives  specific  instructions  from the  holders of
depositary shares representing that number of shares of preferred stock.
    

EXCHANGE OF PREFERRED STOCK

   
     Whenever ML&Co.  exchanges all of the shares of a series of preferred stock
held by the  depositary  for debt  securities,  common  stock or other shares of
preferred  stock,  the depositary will exchange as of the same exchange date the
number of  depositary  shares  representing  all of the shares of the  preferred
stock so  exchanged  for debt  securities,  common  stock  or  other  shares  of
preferred  stock,  provided ML&Co. has issued and deposited with the depositary,
debt securities, common stock or other shares of preferred stock, as applicable,
for all of the shares of the preferred stock to be exchanged.  The exchange rate
per  depositary  share will be equal to the exchange rate per share of preferred
stock  multiplied by the fraction of a share of preferred  stock  represented by
one depositary share, plus all money and other property,  if any, represented by
those  depositary  shares,  including  all amounts paid by ML&Co.  in respect of
dividends which on the exchange date have accumulated on the shares of preferred
stock to be so exchanged and have not already been paid.
    

CONVERSION OF PREFERRED STOCK

   
     The depositary shares are not convertible or exchangeable into common stock
or any other securities or property of ML&Co.  Nevertheless,  if so specified in
the applicable prospectus supplement, each depositary receipt may be surrendered
by its holder to the depositary  with written  instructions to the depositary to
instruct  ML&Co.  to  cause  conversion  or  exchange  of  the  preferred  stock
represented by the depositary  shares evidenced by that depositary  receipt into
whole shares of common stock, other shares of preferred stock or debt securities
of ML&Co. ML&Co. has agreed that upon the receipt of any instructions to convert
or exchange any  depositary  shares and the payment of any fees or other amounts
applicable  to any  conversion  or  exchange,  it will  convert or exchange  the
depositary  shares using the same  procedures as those  provided for delivery of
preferred  stock to effect  conversions or exchange.  If the  depositary  shares
represented by a depositary receipt are converted in part only, a new depositary
receipt or receipts  will be issued for any  depositary  shares not converted or
exchanged.
    

AMENDMENT AND TERMINATION OF THE DEPOSIT AGREEMENT

   
     The form of depositary  receipt  evidencing the  depositary  shares and any
provision  of the  deposit  agreement  may at any time be amended  by  agreement
between ML&Co.  and the depositary.  However,  any amendment that materially and
adversely  alters the rights of the holders of  depositary  receipts will not be
effective  unless it has been  approved by the holders of at least a majority of
the depositary shares then  outstanding.  No amendment to the form of depositary
receipt or any  provision  of the deposit  agreement  relating  to or  affecting
rights to receive dividends or distributions or voting, redemption or conversion
rights will be effective  unless approved by the holders of at least  two-thirds
of the depositary shares then outstanding.

     ML&Co.  may terminate the deposit  agreement at any time upon 60 days prior
written notice to the  depositary,  in which case the depositary will deliver to
the record  holders,  upon surrender of the depositary  receipts,  the number of
whole  or  fractional  shares  of  preferred  stock as is  represented  by those
depositary receipts. The deposit agreement will automatically terminate if:
    

     o    all outstanding depositary shares have been redeemed,

   
     o    all  shares  of  preferred  stock  deposited  with the  depositary  in
          accordance  with the terms of the deposit  agreement and all money and
          other property  relating to those shares of preferred  stock have been
          withdrawn in accordance with the terms of the deposit agreement, or
    

     o    there has been a final  distribution in respect of the preferred stock
          in  connection  with any  liquidation,  dissolution  or  winding up of
          ML&Co.  and the  distribution  has been  distributed to the holders of
          depositary receipts.

CHARGES OF DEPOSITARY

   
     ML&Co.  will pay all  transfer  and other  taxes and  governmental  charges
arising solely from the existence of the depositary  arrangements.  ML&Co.  will
pay the fees and expenses of the depositary in connection  with the  performance
of its duties under the deposit agreement.  Holders of depositary  receipts will
pay transfer and other taxes and governmental charges and any other charges that
are expressly  provided in the deposit  agreement to be for their accounts.  The
depositary  may refuse to effect any  transfer  of a  depositary  receipt or any
withdrawals of preferred stock evidenced by a depositary receipt until all taxes
and charges with respect to the depositary  receipt or preferred  stock are paid
by their holders.
    

RESIGNATION AND REMOVAL OF DEPOSITARY

   
     The depositary may resign at any time by delivering to ML&Co. notice of its
election  to do so,  and  ML&Co.  may remove  the  depositary  at any time.  Any
resignation  or  removal  of the  depositary  will  take  effect  upon  ML&Co.'s
appointment of a successor  depositary,  which must be appointed  within 60 days
after  delivery  of the notice of  resignation  or removal and must be a bank or
trust  company  having its  principal  office in the United  States and having a
combined capital and surplus of at least $50,000,000.
    

NOTICES

   
     The depositary  will forward to holders of depositary  receipts all reports
and  communications  received from ML&Co. and the depositary and which ML&Co. is
required to furnish to holders of the related  underlying  preferred  stock. The
depositary  will also,  promptly  after its receipt,  transmit to the holders of
depositary  receipts,  copies of all notices and  reports  required by law,  the
rules of any national  securities  exchange or ML&Co.'s restated  certificate of
incorporation to be furnished to the record holders of depositary receipts.
    

LIMITATION OF LIABILITY

   
     Neither the depositary nor ML&Co.  will assume any obligation or be subject
to any liability under the deposit  agreement to holders of depositary  receipts
other than for negligence,  willful misconduct or bad faith. The depositary will
not be obligated to prosecute or defend any legal  proceeding  in respect of any
depositary  shares or any shares of preferred  stock unless it is furnished with
satisfactory  indemnification.  ML&Co.  and the  depositary  may rely on written
advice of counsel or accountants,  or information provided by persons presenting
shares of preferred stock for deposit,  holders of depositary  receipts or other
persons  believed  to be  competent  and on  documents  believed  to be genuine.
Neither the  depositary  nor ML&Co.  will be liable if it is  prevented  from or
delayed, by law, by provision of ML&Co.'s restated  certificate of incorporation
or any circumstances beyond its control, in performing its obligations under the
deposit agreement.
    

                     DESCRIPTION OF PREFERRED STOCK WARRANTS

   
     ML&Co.  may issue warrants for the purchase of preferred stock  ("Preferred
Stock Warrants").  Each series of Preferred Stock Warrants is to be issued under
a preferred stock warrant agreement to be entered into between ML&Co. and a bank
or trust  company,  as  preferred  stock  warrant  agent,  as  described  in the
applicable  prospectus supplement relating to the Preferred Stock Warrants being
offered. A copy of the form of preferred stock warrant agreement,  including the
form of warrant certificates representing the Preferred Stock Warrants, is filed
as an exhibit to the registration  statement of which this prospectus is a part.
The  following  summaries  of the material  provisions  of the  preferred  stock
warrant agreement and preferred stock warrant  certificates are not complete and
are subject to and are  qualified  in their  entirety by  reference  to, all the
provisions of the  preferred  stock  warrant  agreement and the preferred  stock
warrant certificates, respectively, including the definitions of terms.
    

TERMS OF THE PREFERRED STOCK WARRANTS

   
     The  applicable  prospectus  supplement  will  describe  the  terms  of the
specific issue of Preferred  Stock Warrants being offered,  the preferred  stock
warrant  agreement  relating to the Preferred  Stock  Warrants and the preferred
stock warrant certificates representing the Preferred Stock Warrants,  including
the following:
    

     o    the offering price or prices;

     o    designation,  aggregate  number and terms of the  series of  preferred
          stock that may be  purchased  upon  exercise  of the  Preferred  Stock
          Warrants and the minimum  number of Preferred  Stock Warrants that are
          exercisable;

   
     o    any  designation  and terms of the securities with which the Preferred
          Stock  Warrants are being  offered and the number of  Preferred  Stock
          Warrants being offered with each Security;

     o    any date on and  after  which the  Preferred  Stock  Warrants  and the
          related securities will be transferable separately;
    

     o    the number and stated values of the series of preferred stock that may
          be purchased  upon  exercise of each  Preferred  Stock Warrant and the
          price at which the  shares of  preferred  stock of that  series may be
          purchased  upon  exercise,  and events or  conditions  under which the
          number of shares that may be purchased may be adjusted;

     o    the date on which the right to exercise the Preferred  Stock  Warrants
          will begin and the date on which the right to exercise will expire;

     o    any  circumstances  that will cause the Preferred Stock Warrants to be
          deemed to be automatically exercised;

     o    any material risk factors relating to the Preferred Stock Warrants;

   
     o    the identity of the preferred stock warrant agent; and

     o    any  other  terms  of the  Preferred  Stock  Warrants  which  are  not
          inconsistent  with  the  provisions  of the  preferred  stock  warrant
          agreement.

     Holders may exchange preferred stock warrant certificates for new preferred
stock warrant  certificates  of different  denominations,  may, if in registered
form,  present for  registration  of transfer,  and exercise the Preferred Stock
Warrants at the corporate  trust office of the preferred  stock warrant agent or
any other office indicated in the applicable prospectus  supplement.  Before the
exercise of any Preferred Stock Warrant,  a holder will not have the rights of a
holder of shares of the preferred  stock that may be purchased  upon exercise of
the  Preferred  Stock  Warrant,  including  the  right  to  receive  payment  of
dividends,  if any, on the underlying  preferred  stock or the right to vote the
underlying preferred stock.
    

     Prospective  purchasers of Preferred  Stock  Warrants  should be aware that
special U.S.  Federal  income tax,  accounting and other  considerations  may be
applicable to  instruments  such as Preferred  Stock  Warrants.  The  prospectus
supplement relating to any issue of Preferred Stock Warrants will describe these
considerations.

BOOK-ENTRY PROCEDURES

   
     Except  as  may  otherwise  be  provided  in  the   applicable   prospectus
supplement,  the Preferred  Stock  Warrants will be issued in the form of global
preferred stock warrant certificates,  registered in the name of a depositary or
its  nominee.  In that case,  beneficial  owners will not be entitled to receive
definitive  certificates   representing  Preferred  Stock  Warrants  unless  the
depositary is unwilling or unable to continue as depositary, specified events of
bankruptcy or insolvency occur with respect to ML&Co. or ML&Co.  decides to have
the  Preferred  Stock  Warrants  represented  by  definitive   certificates.   A
beneficial  owner's interest in a Preferred Stock Warrant will be recorded on or
through the records of the  brokerage  firm or other entity that  maintains  the
beneficial  owner's  account.  In turn,  the  total  number of  Preferred  Stock
Warrants held by an individual brokerage firm for its clients will be maintained
on the records of the depositary in the name of the brokerage firm or its agent.
Transfer of  ownership of any  Preferred  Stock  Warrant  will be effected  only
through the selling beneficial owner's brokerage firm.
    

EXERCISE OF PREFERRED STOCK WARRANTS

     Each  Preferred  Stock Warrant will entitle its holder to purchase a number
of shares of preferred  stock at the exercise price  described in the applicable
prospectus  supplement.  After  the close of  business  on the date the right to
exercise the Preferred Stock Warrants expires,  or any later date if extended by
ML&Co., unexercised Preferred Stock Warrants will become void.

   
     Holders may exercise the Preferred  Stock  Warrants in the manner set forth
in the applicable prospectus supplement.  Upon receipt of payment and a properly
completed and duly executed preferred stock warrant certificate at the corporate
trust office of the preferred stock warrant agent or any other office  indicated
in the applicable  prospectus  supplement,  ML&Co. will, as soon as practicable,
issue and deliver the shares of preferred stock purchased upon exercise. If less
than all of the Preferred  Stock  Warrants  represented  by any preferred  stock
warrant  certificate  are  exercised,  ML&Co.  will issue a new preferred  stock
warrant certificate for the remaining number of Preferred Stock Warrants.
    

LISTING

     ML&Co.  may  list an  issue  of  Preferred  Stock  Warrants  on a  national
securities exchange.  Any listing will be specified in the applicable prospectus
supplement.

MODIFICATIONS

   
     ML&Co.  and the preferred stock warrant agent may amend any preferred stock
warrant agreement and the terms of the related Preferred Stock Warrants, without
the consent of the holders of the Preferred Stock  Warrants,  for the purpose of
curing any ambiguity, or of curing, correcting or supplementing any defective or
inconsistent  provision,  or in any other manner which ML&Co. may deem necessary
or desirable and which will not materially and adversely affect the interests of
the preferred stock warrantholders.

     ML&Co.  and the preferred  stock warrant agent also may amend any preferred
stock warrant  agreement and the terms of the related  Preferred Stock Warrants,
with the  consent of the  holders  of not less than a majority  in number of the
then outstanding unexercised Preferred Stock Warrants affected by the amendment.
However,  without  the  consent of each of the  preferred  stock  warrantholders
affected, no amendment will be effective that:
    

     o    shortens the period of time during which the Preferred  Stock Warrants
          may be exercised;

   
     o    otherwise  materially and adversely affects the exercise rights of the
          preferred stock warrantholders; or

     o    reduces the number of outstanding Preferred Stock Warrants the consent
          of whose  holders is required to approve an amendment of the preferred
          stock warrant  agreement or the terms of the related  Preferred  Stock
          Warrants.
    

ENFORCEABILITY OF RIGHTS BY PREFERRED STOCK WARRANTHOLDERS

   
     Any preferred stock  warrantholder  may, without the consent of the related
preferred stock warrant agent,  enforce by appropriate  legal action,  in and of
its own behalf, its right to exercise its Preferred Stock Warrants.
    

                           DESCRIPTION OF COMMON STOCK

   
     The  following  description  sets forth the general  terms of common  stock
which ML&Co.  may issue.  The  description set forth below and in any prospectus
supplement is not  complete,  is subject to, and is qualified in its entirety by
reference to, ML&Co's restated certificate of incorporation which is filed as an
exhibit to the registration statement of which this prospectus is a part.
    

TERMS OF THE COMMON STOCK

   
     Under ML&Co.'s restated certificate of incorporation,  ML&Co. is authorized
to issue up to  1,000,000,000  shares of common  stock,  par value  $1.331/3 per
share. As of February 24, 1999,  there were  359,808,565  shares of common stock
and 4,414,794  Exchangeable  Shares  outstanding.  The  Exchangeable  Shares are
exchangeable  at any time into common stock on a  one-for-one  basis and entitle
holders to dividend,  voting and other rights  equivalent to common  stock.  The
common stock is traded on the New York Stock Exchange under the symbol "MER" and
also on the Chicago Stock Exchange,  the Pacific Exchange, the Paris Bourse, the
London Stock Exchange and the Tokyo Stock Exchange.
    

     The common  stock has the  dividend,  voting,  liquidation  and  preemptive
rights set forth below unless otherwise  specified in the prospectus  supplement
being used to offer the common stock. The applicable  prospectus supplement will
describe  the  terms  of the  common  stock  including,  where  applicable,  the
following:

     o    the number of shares to be offered;

     o    the offering price or prices;

   
     o    to the extent  permitted by applicable  law,  whether the common stock
          will be issued in certificated or book-entry form;
    

     o    information with respect to any book-entry procedures; and

   
     o    any  additional  terms of the common stock which are not  inconsistent
          with the provisions of ML&Co.'s restated certificate of incorporation.

     The common stock will be, when issued against payment therefor,  fully paid
and nonassessable. Holders of the common stock will have no preemptive rights to
subscribe for any additional securities which may be issued by ML&Co. The rights
of holders of common stock will be subject to, and may be adversely affected by,
the  rights of holders of any  preferred  stock that has been  issued and may be
issued in the future.  As of December 25, 1998,  17,000,000  depositary  shares,
each  representing  a  one-four-hundredth  interest  in a share of 9%  Preferred
Stock,  and one Special  Voting  Share were  outstanding.  See  "Description  of
Preferred   Stock--Outstanding  Preferred  Stock"  for  a  description  of  that
preferred stock.  The Board of Directors of ML&Co. may issue  additional  shares
of  preferred  stock  to  obtain  additional   financing,   in  connection  with
acquisitions,   to  officers,   directors  and  employees  of  ML&Co.   and  its
subsidiaries  pursuant  to  benefit  plans or  otherwise  and for  other  proper
corporate purposes.
    

     ML&Co. is the principal transfer agent for the common stock.

     Because ML&Co. is a holding company,  its rights, and the rights of holders
of its securities,  including the holders of common stock, to participate in the
distribution  of  assets  of any  subsidiary  of  ML&Co.  upon the  subsidiary's
liquidation  or  recapitalization  will be  subject  to the prior  claims of the
subsidiary's creditors and preferred  stockholders,  except to the extent ML&Co.
may itself be a creditor  with  recognized  claims  against the  subsidiary or a
holder of preferred stock of the subsidiary.

DIVIDENDS

     ML&Co. may pay dividends on the common stock out of funds legally available
for the payment of dividends  as, if and when declared by the Board of Directors
of ML&Co. or a duly authorized committee of the Board of Directors.

     As of the date of this  prospectus,  subsidiaries  of  ML&Co.  have  issued
$2.575 billion of perpetual TOPrS. In connection with the issuance of the TOPrS,
ML&Co. has agreed,  among other things,  that if full distributions on the TOPrS
have not been paid or set apart for  payment  or  ML&Co.  is in  default  of its
related guarantee obligations, ML&Co., with certain exceptions, will not declare
or pay dividends,  make  distributions  with respect to, or redeem,  purchase or
acquire, or make a liquidation payment with respect to any of its capital stock,
including the common stock.

LIQUIDATION RIGHTS

     Upon any voluntary or involuntary liquidation,  dissolution,  or winding up
of ML&Co.,  the holders of its common  stock will be entitled to receive,  after
payment of all of its debts, liabilities and of all sums to which holders of any
preferred stock may be entitled, all of the remaining assets of ML&Co.

VOTING RIGHTS

     Except as described  under  "Description  of  Preferred  Stock--Outstanding
Preferred  Stock",  the holders of the common stock currently  possess exclusive
voting  rights in ML&Co.  The Board of Directors of ML&Co.  may,  however,  give
voting  power to any  preferred  stock which may be issued in the  future.  Each
holder of common  stock is  entitled  to one vote per share with  respect to all
matters.  There is no cumulative  voting in the election of  directors.  Actions
requiring approval of stockholders generally require approval by a majority vote
of outstanding shares.

     The Board of Directors of ML&Co.  is currently  comprised of 14  directors,
divided into three classes,  the precise number of members to be fixed from time
to time by the Board of  Directors.  The  directors of the class elected at each
annual  election  hold office for a term of three  years,  with the term of each
class expiring at successive annual meetings of stockholders.

RIGHTS TO PURCHASE SERIES A JUNIOR PREFERRED STOCK

   
     Under the Amended and  Restated  Rights  Agreement,  adopted on December 2,
1997 (the "Rights  Agreement"),  preferred  purchase rights were  distributed to
holders of common  stock.  The  preferred  purchase  rights are attached to each
outstanding  share of common  stock and will attach to all  subsequently  issued
shares,  including  common  stock that may be offered by ML&Co.  pursuant  to an
applicable  prospectus  supplement.  The preferred  purchase  rights entitle the
holder to purchase  fractions of a share ("Units") of Series A junior  preferred
stock at an exercise price of $300 per Unit,  subject to adjustment from time to
time as provided in the Rights  Agreement.  The exercise price and the number of
Units issuable are subject to adjustment to prevent dilution.
    

     The preferred  purchase rights will separate from the common stock ten days
following the earlier of:

     o    an  announcement of an acquisition by a person or group of 15% or more
          of the outstanding common stock of ML&Co.; or

     o    the  commencement of a tender or exchange offer for 15% or more of the
          shares of common stock of ML&Co. outstanding.

   
     If, after the  preferred  purchase  rights have  separated  from the common
stock,
    

     o    ML&Co.  is the  surviving  corporation  in a merger with an  acquiring
          party,

     o    a person  becomes  the  beneficial  owner of 15% or more of the common
          stock,

     o    an  acquiring  party  engages  in one or more  defined  "self-dealing"
          transactions, or

     o    an event  occurs which  results in such  acquiring  party's  ownership
          interest being increased by more than 1%,

   
then,  in each case,  each  holder of a preferred  purchase  right will have the
right to purchase Units of Series A junior  preferred stock having a value equal
to two times the exercise price of the preferred  purchase  right.  In addition,
preferred purchase rights held by or transferred in certain  circumstances by an
acquiring party may immediately become void.
    

In the event that, at any time,

     o    ML&Co.  is  acquired  in  a  merger  or  other  business   combination
          transaction and ML&Co. is not the surviving corporation, or

     o    any  person  consolidates  or merges  with  ML&Co.  and all or part of
          ML&Co.'s common stock is converted or exchanged for  securities,  cash
          or property of any other person or

     o    50%  or  more  of  ML&Co.'s   assets  or  earning  power  is  sold  or
          transferred,

   
each  holder  of a right  will have the right to  purchase  common  stock of the
acquiring  party  having a value  equal to two times the  exercise  price of the
preferred purchase right.
    

         The preferred purchase rights expire on December 2, 2007. The preferred
purchase  rights are  redeemable at the option of a majority of the  independent
directors of ML&Co.  at $.01 per right at any time until the tenth day following
an announcement of the acquisition of 15% or more of the common stock.

     The  foregoing  provisions  of the Rights  Agreement may have the effect of
delaying, deferring or preventing a change in control of ML&Co.

   
     The  certificate of  designations  of the Series A junior  preferred  stock
provides that the holders of Units of the Series A junior  preferred  stock will
be entitled to receive  quarterly  dividends  in an amount to be  determined  in
accordance with the formula set forth in the certificate of designations.  These
dividend rights are cumulative.  The Series A junior preferred stock rank junior
in right of  payment of  dividends  to the 9%  Preferred  Stock and to all other
preferred stock issued by ML&Co.,  unless the terms of any other preferred stock
provide  otherwise.  The holders of Units of the Series A junior preferred stock
will have one vote per Unit on all  matters  submitted  to the  stockholders  of
ML&Co.,  subject to  adjustment.  If at any time  dividends  on any Units of the
Series A junior preferred stock are in arrears for a number of periods,  whether
or not  consecutive,  which  in the  aggregate  is  equivalent  to six  calendar
quarters,  then during that period of default,  the holders of all Units, voting
separately  as a class,  will have the right to elect two directors to the Board
of  Directors  of ML&Co.  Additionally,  whenever  quarterly  dividends or other
dividends or distributions payable on the Series A junior preferred stock are in
arrears,  ML&Co.  shall not, among other things,  declare or pay dividends on or
make any other  distributions on, or redeem or purchase or otherwise acquire for
consideration any shares or capital stock of ML&Co.  which ranks junior in right
of payment to the Series A junior preferred  stock,  including the common stock.
In the event of any voluntary or involuntary liquidation, dissolution or winding
up of ML&Co.,  the holders of outstanding Units of the Series A junior preferred
stock will be entitled to receive a  distribution  in an amount to be determined
in  accordance  with the formula set forth in the  certificate  of  designations
before the payment of any distribution to the holders of common stock. The Units
of Series A junior  preferred stock are not  redeemable.  As of the date of this
prospectus, there are no shares of Series A junior preferred stock outstanding.

MATERIAL CHARTER PROVISIONS

     ML&Co.'s restated certificate of incorporation  provides that, except under
specified  circumstances,  ML&Co.  may not merge or consolidate  with any one or
more corporations,  joint-stock  associations or non-stock  corporations;  sell,
lease or  exchange  all or  substantially  all of its  property  and  assets  or
dissolve  without the  affirmative  vote of  two-thirds  of the entire  Board of
Directors of ML&Co.  and the holders of a majority of the outstanding  shares of
common stock entitled to vote.  Additionally,  ML&Co.'s restated  certificate of
incorporation provides that specified business combinations involving ML&Co. and
an interested  stockholder or an affiliate or associate of that stockholder must
be  approved  by 80% of the voting  power of the  outstanding  shares of capital
stock of ML&Co.  entitled to vote  generally in the election of  directors.  The
vote  of  80%  of the  voting  power  of the  voting  stock  referred  to in the
immediately  preceding  sentence is required for amendment of these  provisions.
ML&Co.'s restated certificate of incorporation also provides that only the Board
of Directors of ML&Co. has the authority to call special stockholder meetings.

     The foregoing  provisions of ML&Co.'s restated certificate of incorporation
may have the effect of delaying,  deferring or preventing a change in control of
ML&Co.
    

                      DESCRIPTION OF COMMON STOCK WARRANTS

   
     ML&Co.  may issue  warrants for the purchase of common stock ("Common Stock
Warrants").  Each series of Common Stock  Warrants will be issued under a common
stock warrant  agreement to be entered into between  ML&Co.  and a bank or trust
company,  as common  stock  warrant  agent,  all as set forth in the  applicable
prospectus  supplement.  A copy of the form of common stock  warrant  agreement,
including  the  form of  warrant  certificates  representing  the  Common  Stock
Warrants,  reflecting  the provisions to be included in the common stock warrant
agreements  that will be entered  into with respect to  particular  offerings of
Common Stock Warrants,  is filed as an exhibit to the registration  statement of
which  this  prospectus  is a part.  The  following  summaries  of the  material
provisions  of the common  stock  warrant  agreement  and common  stock  warrant
certificates  are not  complete,  are  subject  to, and are  qualified  in their
entirety by reference  to, all of the  provisions  of the common  stock  warrant
agreement and the common stock warrant  certificates,  including the definitions
of terms.
    

TERMS OF THE COMMON STOCK WARRANTS

   
     The applicable  prospectus supplement will describe the terms of the Common
Stock Warrants being offered, the common stock warrant agreement relating to the
Common Stock Warrants and the common stock warrant  certificates,  including the
following:
    

     o    the offering price or prices;

     o    the  aggregate  number of shares of common stock that may be purchased
          upon  exercise of the Common  Stock  Warrants  and  minimum  number of
          Common Stock Warrants that are exercisable;

   
     o    the number of securities, if any, with which the Common Stock Warrants
          are being  offered and the number of the Common Stock  Warrants  being
          offered with each security;

     o    the date on and after which the Common Stock  Warrants and the related
          securities, if any, will be transferable separately;

     o    the number of shares of common stock purchasable upon exercise of each
          Common  Stock  Warrant,  the price at which  the  common  stock may be
          purchased,  and events or conditions  under which the number of shares
          purchasable may be adjusted;
    

     o    the date on which the right to exercise the Common Stock Warrants will
          begin and the date on which the right to exercise will expire;

     o    the circumstances,  if any, which will cause the Common Stock Warrants
          to be deemed to be automatically exercised;

     o    any material risk factors relating to the Common Stock Warrants;

   
     o    the identity of the common stock warrant agent; and

     o    any  other  terms  of  the  Common  Stock   Warrants   which  are  not
          inconsistent   with  the   provisions  of  the  common  stock  warrant
          agreement.

     Holders may exchange common stock warrant certificates for new common stock
warrant  certificates  of different  denominations,  if in registered  form, may
present for registration of transfer, and may exercise the Common Stock Warrants
at the  corporate  trust office of the common stock  warrant  agent or any other
office indicated in the applicable prospectus supplement. Before the exercise of
any Common Stock Warrants to purchase common stock,  holders of the Common Stock
Warrants  will not have any rights of holders of common stock  purchasable  upon
exercise of the Common Stock Warrants,  including the right to receive  payments
of dividends,  if any, on the common stock  purchasable upon any exercise or the
right to vote the underlying common stock.
    

     Prospective  purchasers  of Common  Stock  Warrants  should  be aware  that
special U.S.  Federal  income tax,  accounting and other  considerations  may be
applicable  to  instruments  such  as  Common  Stock  Warrants.  The  prospectus
supplement  relating to any issue of Common Stock  Warrants will describe  these
considerations.

BOOK-ENTRY PROCEDURES

   
     Except  as  may  otherwise  be  provided  in  the   applicable   prospectus
supplement,  the  Common  Stock  Warrants  will be  issued in the form of global
common stock warrant certificates, registered in the name of a depositary or its
nominee.  In that  case,  beneficial  owners  will not be  entitled  to  receive
definitive certificates representing Common Stock Warrants unless the depositary
is unwilling or unable to continue as depositary,  certain  specified  events of
bankruptcy or insolvency occur with respect to ML&Co. or ML&Co.  decides to have
the Common Stock Warrants represented by definitive  certificates.  A beneficial
owner's  interest in a Common  Stock  Warrant will be recorded on or through the
records of the  brokerage  firm or other  entity  that  maintains  a  beneficial
owner's  account.  In turn, the total number of Common Stock Warrants held by an
individual  brokerage  firm for its clients will be maintained on the records of
the  depositary  in the name of the  brokerage  firm or its agent.  Transfer  of
ownership of any Common Stock  Warrant will be effected only through the selling
beneficial owner's brokerage firm.
    

EXERCISE OF COMMON STOCK WARRANTS

     Each Common  Stock  Warrant  will entitle its holder to purchase a specific
number  of  shares  of  common  stock at the  exercise  price  described  in the
applicable  prospectus  supplement.  After the close of business on the date the
right to  exercise  the  Common  Stock  Warrants  expires,  or any later date if
extended by ML&Co., unexercised Common Stock Warrants will become void.

   
     Common  Stock  Warrants  may be  exercised  as set forth in the  applicable
prospectus supplement. Upon receipt of payment and a properly completed and duly
executed  common stock warrant  certificate at the corporate trust office of the
common  stock  warrant  agent or any other office  indicated  in the  applicable
prospectus  supplement,  ML&Co. will, as soon as practicable,  issue and deliver
the shares of common  stock  purchased  upon  exercise.  If less than all of the
Common Stock Warrants  represented by any common stock warrant  certificate  are
exercised,  a new  common  stock  warrant  certificate  will be  issued  for the
remaining Common Stock Warrants.
    

LISTING

     ML&Co. may list an issue of Common Stock Warrants on a national  securities
exchange. Any listing will be specified in the applicable prospectus supplement.

MODIFICATIONS

   
     ML&Co.  and the  common  stock  warrant  agent may amend any  common  stock
warrant  agreement and the terms of the related Common Stock  Warrants,  without
the  consent of the  holders of the Common  Stock  Warrants,  for the purpose of
curing any ambiguity, or of curing, correcting or supplementing any defective or
inconsistent  provision,  or in any other manner which ML&Co. may deem necessary
or desirable and which will not materially and adversely affect the interests of
the common stock warrantholders.

     ML&Co.  and the common stock  warrant agent also may amend any common stock
warrant  agreement and the terms of the related Common Stock Warrants,  with the
consent  of the  holders  of not less  than a  majority  in  number  of the then
outstanding  unexercised  Common Stock Warrants affected by amendment.  However,
without  the consent of each of the common  stock  warrantholders  affected,  no
amendment will be effective that:
    

     o    shortens the period of time during which the Common Stock Warrants may
          be exercised;

   
     o    otherwise  materially and adversely affects the exercise rights of the
          common stock warrantholders; or

     o    reduces the number of outstanding Common Stock Warrants the consent of
          whose  holders is required to approve an amendment of the common stock
          warrant agreement or the terms of the related Common Stock Warrants.

ENFORCEABILITY OF RIGHTS BY  COMMON STOCK WARRANTHOLDERS

     Any common  stock  warrantholder  may,  without  the consent of the related
common stock warrant agent,  enforce by appropriate legal action, in and for its
own behalf, its right to exercise its Common Stock Warrant.
    


<PAGE>


                              PLAN OF DISTRIBUTION

   
     ML&Co. may sell securities:
    

     o    to the  public  through  MLPF&S,  or  through a group of  underwriters
          managed or co-managed by, one or more underwriters, including MLPF&S,

     o    through MLPF&S as agent, or

     o    directly to purchasers.

   
     The  prospectus  supplement  with respect to the securities of a particular
series describes the terms of the offering of the securities, including the name
of the agent or the name or names of any  underwriters,  the public  offering or
purchase price, any discounts and commissions to be allowed or paid to the agent
or underwriters,  all other items constituting  underwriting  compensation,  any
discounts and  commissions to be allowed or paid to dealers and any exchanges on
which the securities will be listed. Only the agents or underwriters so named in
the prospectus  supplement  are agents or  underwriters  in connection  with the
securities  being offered.  Under certain  circumstances,  ML&Co. may repurchase
securities  and reoffer them to the public as set forth above.  ML&Co.  may also
arrange for repurchases and resales of the securities by dealers.
    

     If so  indicated  in  the  prospectus  supplement,  ML&Co.  will  authorize
underwriters  to  solicit  offers  by  certain  institutions  to  purchase  debt
securities  from ML&Co.  pursuant to delayed  delivery  contracts  providing for
payment  and  delivery  on the date stated in the  prospectus  supplement.  Each
contract  will be for an amount  not less than,  and,  unless  ML&Co.  otherwise
agrees,  the aggregate  principal amount of debt securities sold pursuant to the
contracts  shall  not  be  more  than,  the  respective  amounts  stated  in the
prospectus  supplement.  Institutions with whom the contracts,  when authorized,
may be made include commercial and savings banks,  insurance companies,  pension
funds, investment companies,  educational and charitable institutions, and other
institutions,  but  shall in all  cases be  subject  to the  approval  of ML&Co.
Delayed delivery contracts will not be subject to any conditions except that the
purchase by an  institution of the debt  securities  covered under that contract
shall  not at  the  time  of  delivery  be  prohibited  under  the  laws  of any
jurisdiction in the United States to which that institution is subject.

     ML&Co.  has  agreed to  indemnify  the agent and the  several  underwriters
against certain civil  liabilities,  including  liabilities under the Securities
Act or contribute to payments the agent or the  underwriters  may be required to
make.

   
     The  distribution of securities will conform to the  requirements set forth
in the  applicable  sections of Rule 2720 of the Conduct  Rules of the  National
Association of Securities Dealers, Inc.
    


<PAGE>


                       WHERE YOU CAN FIND MORE INFORMATION

     We file reports,  proxy statements and other  information with the SEC. Our
SEC  filings  are also  available  over the  Internet  at the  SEC's web site at
http://www.sec.gov.  You may also read and copy any document we file by visiting
the SEC's public  reference  rooms in Washington,  D.C., New York, New York, and
Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further information
about the public reference rooms. You may also inspect our SEC reports and other
information at the New York Stock Exchange, Inc., 20 Broad Street, New York, New
York 10005.

   
     We have filed a  registration  statement  on Form S-3 with the SEC covering
the securities and other securities.  For further  information on ML&Co. and the
securities,  you should refer to our  registration  statement  and its exhibits.
This prospectus  summarizes material provisions of contracts and other documents
that we refer you to. Because the prospectus may not contain all the information
that you may find important, you should review the full text of these documents.
We have  included  copies of these  documents  as exhibits  to our  registration
statement of which this prospectus is a part.
    

                INCORPORATION OF INFORMATION WE FILE WITH THE SEC

     The SEC allows us to incorporate by reference the  information we file with
them, which means:

     o    incorporated documents are considered part of the prospectus;

     o    we can disclose important information to you by referring you to those
          documents; and

     o    information  that we file with the SEC will  automatically  update and
          supersede this incorporated information.

     We  incorporate  by reference the  documents  listed below which were filed
with the SEC under the Exchange Act:

   
     o    annual report on Form 10-K for the year ended December 25, 1998; and

     o    current reports on Form 8-K dated December 28, 1998, January 19, 1999,
          February 17, 1999, February 18, 1999, February 22, 1999,  February 23,
          1999 and March 26, 1999.

     We also  incorporate by reference  each of the following  documents that we
will file with the SEC after the date of this prospectus  until this offering is
completed or after the date of this initial  registration  statement  and before
the effectiveness of the registration statement:
    

     o    reports filed under Sections 13(a) and (c) of the Exchange Act;

     o    definitive  proxy or information  statements filed under Section 14 of
          the  Exchange  Act in  connection  with any  subsequent  stockholders'
          meeting; and

     o    any reports filed under Section 15(d) of the Exchange Act.

   
     You should rely only on information  contained or incorporated by reference
in this prospectus. We have not, and MLPF&S has not, authorized any other person
to provide you with different information. If anyone provides you with different
or inconsistent  information,  you should not rely on it. We are not, and MLPF&S
is not, making an offer to sell these securities in any  jurisdiction  where the
offer or sale is not permitted.
    

     You should  assume that the  information  appearing in this  prospectus  is
accurate  as of the  date of  this  prospectus  only.  Our  business,  financial
condition and results of operations may have changed since that date.

     You  may  request  a copy  of any  filings  referred  to  above  (excluding
exhibits),  at no cost, by contacting us at the following address:  Mr. Lawrence
M. Egan,  Jr.,  Corporate  Secretary's  Office,  Merrill Lynch & Co.,  Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.

                                     EXPERTS

   
     The consolidated financial statements and the related financial statement
schedule incorporated in this prospectus by reference from the Annual Report
on Form 10-K of Merrill Lynch & Co., Inc. and subsidiaries have been audited
by Deloitte & Touche LLP, independent auditors, as stated in their reports
(which express an unqualified opinion and which report on the consolidated
financial statements includes an explanatory paragraph for the change in
accounting method for certain internal-use software development costs), which
are incorporated herein by reference, and have been so incorporated in
reliance upon the reports of such firm given upon their authority as experts
in accounting and auditing.
    





<PAGE>
   
The  information in this  prospectus is not complete and may be changed.  We may
not sell  these  securities  until the  registration  statement  filed  with the
Securities and Exchange Commission is effective. This prospectus is not an offer
to  sell  these  securities  and it is not  soliciting  an  offer  to buy  these
securities in any state where the offer or sale is not permitted.
    
                              Subject to Completion
   
                   Preliminary Prospectus dated March 29, 1999
    

PROSPECTUS
- ----------

                                     [LOGO]
                            MERRILL LYNCH & CO., INC.

                STRUCTURED YIELD PRODUCT EXCHANGEABLE FOR STOCK/SM/
                                    STRYPES/SM/

                             ----------------------


       OFFERING OF THE STRYPES:                 Distributions at Maturity:

o   We will  offer  from time to time    o   On the  stated  maturity  date of
    our  STRYPES,  which  are  senior        each  series of  STRYPES,  or any
    debt  securities  of ML&Co.  that        earlier  date  described  in  the
    are exchangeable  into the common        applicable prospectus supplement,
    stock or other  securities  of an        we  will  pay and  discharge  the
    unaffiliated company.                    STRYPES  by  delivering  to you a
                                             number of shares of common  stock
o   We  will  offer  the  STRYPES  in        or   other   securities   of   an
    series and on terms determined by        unaffiliated  company or property
    market  conditions at the time of        determined in  accordance  with a
    sale.  We  will  describe   these        payment  formula all as described
    terms    in    the     prospectus        in the prospectus supplement.
    supplement   used  to  offer  the        
    specific series of STRYPES.          
                                             
   

o   Each  series  of  STRYPES  may be    o   Instead of  delivering  shares of
    listed on a  national  securities        common stock or other  securities
    exchange    described    in   the        or property, we may deliver cash,
    prospectus supplement.                   or a combination  of cash and the
                                             common stock or other securities,
                                             with an equal value.
    


   
     Neither the  Securities and Exchange  Commission  nor any state  securities
commission has approved or disapproved of these securities or determined if this
prospectus  is truthful or  complete.  Any  representation  to the contrary is a
criminal offense.
    

                            ------------------------

                 The date of this prospectus is         , 199 .

______________
/SM/Service mark of Merrill Lynch & Co., Inc.

<PAGE>
                            MERRILL LYNCH & CO., INC.

     We are a holding company that,  through our U.S. and non-U.S.  subsidiaries
and  affiliates  such as Merrill  Lynch,  Pierce,  Fenner & Smith  Incorporated,
Merrill Lynch Government Securities Inc., Merrill Lynch Capital Services,  Inc.,
Merrill Lynch  International,  Merrill Lynch Capital Markets Bank Ltd.,  Merrill
Lynch Asset Management L.P. and Merrill Lynch Mercury Asset Management, provides
investment,  financing,  advisory,  insurance,  and related products on a global
basis, including:

     o    securities brokerage, trading and underwriting;

     o    investment  banking,   strategic   services,   including  mergers  and
          acquisitions and other corporate finance advisory activities;

     o    asset  management  and other  investment  advisory  and  recordkeeping
          services;

     o    trading and brokerage of swaps, options,  forwards,  futures and other
          derivatives;

     o    securities clearance services;

     o    equity, debt and economic research;

     o    banking,  trust and lending services,  including  mortgage lending and
          related services; and

     o    insurance sales and underwriting services.

We provide  these  products and  services to a wide array of clients,  including
individual investors, small businesses, corporations,  governments, governmental
agencies and financial institutions.

     Our principal executive office is located at World Financial Center,  North
Tower, 250 Vesey Street, New York, New York 10281; our telephone number is (212)
449-1000.

     If you want to find more  information  about us,  please  see the  sections
entitled "Where You Can Find More Information" and "Incorporation of Information
We File with the SEC" in this prospectus.

   
     In this prospectus,  "ML&Co.",  "we", "us" and "our" refer  specifically to
Merrill Lynch & Co.,  Inc.,  the holding  company.  ML&Co.  is the issuer of the
STRYPES described in this prospectus.
    


<PAGE>


                                 USE OF PROCEEDS

   
     We intend to use the net proceeds  from the sale of the STRYPES for general
corporate  purposes,  unless  otherwise  specified in the prospectus  supplement
relating to a specific  issue of STRYPES.  Our general  corporate  purposes  may
include financing the activities of our  subsidiaries,  financing our assets and
those of our  subsidiaries,  lengthening the average  maturity of our borrowings
and financing  acquisitions.  Until we use the net proceeds from the sale of any
of our securities for general corporate  purposes,  we will use the net proceeds
to reduce our short-term  indebtedness or for temporary  investments.  We expect
that we will, on a recurrent basis, engage in additional  financings as the need
arises to finance our growth, through acquisitions or otherwise,  or to lengthen
the  average  maturity  of our  borrowings.  To the extent  that  STRYPES  being
purchased for resale by our subsidiary,  Merrill Lynch,  Pierce,  Fenner & Smith
Incorporated,  referred to in this  prospectus  as MLPF&S,  are not resold,  the
aggregate proceeds that we and our subsidiaries would receive would be reduced.
    

                       RATIO OF EARNINGS TO FIXED CHARGES

   
     In 1998, we acquired the outstanding  shares of Midland Walwyn,  Inc., in a
transaction accounted for as a  pooling-of-interests.  The following information
for the fiscal years 1994 through 1997 has been  restated as if the two entities
had always been combined.
    

     The following  table sets forth our historical  ratios of earnings to fixed
charges for the periods indicated:

<TABLE>
<CAPTION>

                                                         YEAR ENDED LAST FRIDAY IN DECEMBER
                                                     1994     1995     1996     1997      1998
                                                     ----     ----     ----     ----      ----
<S>                                                  <C>      <C>      <C>      <C>       <C>
Ratio of earnings to fixed charges(a).........        1.2      1.2      1.2      1.2      1.1
</TABLE>

______________
(a)  The effect of combining  Midland Walwyn did not change the ratios  reported
     for the fiscal years 1994 through 1997.

         For the purpose of calculating  the ratio of earnings to fixed charges,
"earnings"  consist of earnings from continuing  operations  before income taxes
and  fixed  charges,  excluding  capitalized  interest  and  preferred  security
dividend  requirements.  "Fixed charges" consist of interest costs, the interest
factor in rentals,  amortization  of debt  issuance  costs,  preferred  security
dividend requirements of subsidiaries, and capitalized interest.

                           DESCRIPTION OF THE STRYPES

   
     Each issue of STRYPES will be a series of senior debt  securities of ML&Co.
to be issued under an  indenture  (the "1983  Indenture"),  dated as of April 1,
1983, as amended and restated,  between ML&Co.  and The Chase Manhattan Bank, as
trustee.  For each series of STRYPES,  ML&Co.  and the trustee will enter into a
supplemental  indenture  which  will  further  amend  and  supplement  the  1983
Indenture.  Any supplemental  indenture relating to a specific series of STRYPES
and the 1983  Indenture  are  collectively  referred  to as the  indenture.  The
following  summary of the material  provisions  of the indenture is not complete
and is qualified in its entirety by reference to the indenture.
    


<PAGE>


TERMS OF THE STRYPES

   
     The  supplemental  indenture will provide that ML&Co.  may issue STRYPES of
the  related  series  from time to time under the  indenture,  up to a specified
aggregate  issue  price,  upon the  satisfaction  of certain  conditions  before
issuance.  The  supplemental  indenture  will establish the terms of the related
series of STRYPES, including:
    

     o    the issue  price per  STRYPES;

     o    the date on which the STRYPES will mature;

     o    the consideration deliverable or payable with respect to each STRYPES,
          whether at maturity or upon earlier  acceleration,  and the formula or
          other method by which the amount of any  consideration  deliverable or
          payable will be determined;

     o    any fixed or variable rate or rates per annum;

     o    the interest payment dates;

     o    any  provisions  for   redemption,   the  redemption   price  and  any
          remarketing arrangements;

     o    any sinking fund requirements;

     o    whether the STRYPES are  denominated  or provide for payment in United
          States  dollars or a foreign  currency or units of two or more foreign
          currencies;

     o    whether  and  under  what  circumstances  ML&Co.  will pay  additional
          amounts ("Additional  Amounts") under any STRYPES held by a person who
          is not a  U.S.  person  for  specified  taxes,  assessments  or  other
          governmental  charges and whether ML&Co.  has the option to redeem the
          affected STRYPES rather than pay any Additional Amounts;

     o    the title and series designation;

     o    whether the STRYPES are to be issued in global form;

     o    the obligation of ML&Co.  to pay and discharge the STRYPES at maturity
          by delivery of a number of shares of common stock or other  securities
          or  property  (the   "Underlying   Securities")   of  an  unaffiliated
          corporation or cash or a combination of cash and Underlying Securities
          with an equal value;

     o    the formula or other method by which the consideration  deliverable or
          payable  at  maturity  of the  STRYPES  or any  earlier  date  will be
          determined  and the terms and  conditions  upon which any  payment and
          discharge of the STRYPES will be effected.

     The terms of the specific series of STRYPES being offered will be described
in the applicable prospectus supplement.

   
     Under the indenture, ML&Co., without the consent of holders of any STRYPES,
is  permitted  to issue  STRYPES  with  terms  different  from  those of STRYPES
previously  issued  and to  reopen  a  previous  series  of  STRYPES  and  issue
additional STRYPES of that series.

     Issue price and  interest,  premium and  Additional  Amounts,  if any,  and
Underlying  Securities  will be payable or  deliverable  in the  manner,  at the
places  and  subject  to  the  restrictions  set  forth  in the  indenture,  the
applicable  supplemental  indenture,  the form of the STRYPES and the applicable
prospectus supplement,  provided that payment of any interest and any Additional
Amounts  may be made at the option of ML&Co.  by check  mailed to the holders of
registered STRYPES at their registered addresses.

     Holders may present the STRYPES for  exchange,  and may present  registered
STRYPES  for  transfer,  in  the  manner,  at  the  places  and  subject  to the
restrictions set forth in the indenture,  the applicable supplemental indentures
the form of the STRYPES and the applicable prospectus supplement.  There will be
no service  charge for any  transfer  or exchange  of  STRYPES,  but ML&Co.  may
require  payment  of a sum  sufficient  to cover  any tax or other  governmental
charge payable in connection with a transfer or exchange.
    

RANKING

   
     The STRYPES  will be unsecured  obligations  and will rank equally with all
other unsecured and  unsubordinated  indebtedness of ML&Co.  Because ML&Co. is a
holding company,  the rights of ML&Co. and its creditors,  including the holders
of the  STRYPES,  to  participate  in any  distribution  of  the  assets  of any
subsidiary  upon its liquidation or  reorganization  or otherwise is necessarily
subject to the prior claims of creditors of the subsidiary, except to the extent
that a bankruptcy court may recognize the claims of ML&Co.  itself as a creditor
of the  subsidiary.  In  addition,  dividends,  loans and advances  from certain
subsidiaries,  including  MLPF&S,  to  ML&Co.  are  restricted  by  net  capital
requirements  under  the  Securities  Exchange  Act of 1934 and  under  rules of
exchanges and other regulatory bodies.
    

MERGER AND CONSOLIDATION

     ML&Co.  may  consolidate  or merge with or into any other  corporation  and
ML&Co. may sell,  lease or convey all or substantially  all of its assets to any
corporation, provided that:

     o    the  resulting  corporation,  if other than ML&Co.,  is a  corporation
          organized and existing  under the laws of the United States of America
          or any U.S. state and assumes all of ML&Co.'s obligations to:

          o    pay or  deliver  the  Underlying  Securities,  cash with an equal
               value or a  combination  of both in respect of, any  interest and
               Additional Amounts on, and any other amounts payable with respect
               to, the STRYPES of each series; and

   
          o    perform  and  observe  all  of  ML&Co.'s  obligations  under  the
               indenture, and

     o    ML&Co.  or the  successor  corporation,  as the case  may be,  is not,
          immediately  after any  consolidation or merger,  in default under the
          indenture.
    

LIMITATIONS UPON LIENS

   
     ML&Co.  may not,  and may not  permit  any  majority-owned  subsidiary  to,
create,  assume,  incur or permit to exist any  indebtedness  for borrowed money
secured  by  a  pledge,  lien  or  other  encumbrance,   other  than  any  liens
specifically  permitted by the indenture,  on the voting stock owned directly or
indirectly  by  ML&Co.   of  any   majority-owned   subsidiary,   other  than  a
majority-owned  subsidiary  which,  at the  time of  incurrence  of the  secured
indebtedness,  has a net worth of less than  $3,000,000,  unless the outstanding
STRYPES are secured equally and ratably with the secured indebtedness.

     "Voting  Stock" is  defined in the  indenture  as the stock of the class or
classes having general  voting power under  ordinary  circumstances  to elect at
least  a  majority  of  the  board  of  directors,  managers  or  trustees  of a
corporation provided that, for the purposes of the indenture, stock that carries
only  the  right  to vote  conditionally  on the  occurrence  of an event is not
considered voting stock whether or not the event has happened.
    


<PAGE>

LIMITATIONS ON DISPOSITION OF VOTING STOCK OF, AND MERGER AND SALE OF ASSETS BY,
MLPF&S

     ML&Co. may not sell,  transfer or otherwise  dispose of any Voting Stock of
MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of its Voting
Stock,  unless,  after  giving  effect  to the  transaction,  MLPF&S  remains  a
Controlled Subsidiary.

   
     "Controlled  Subsidiary"  is defined in the indenture to mean a corporation
more  than 80% of the  outstanding  shares  of  Voting  Stock of which are owned
directly or indirectly by ML&Co.
    

     In addition, ML&Co. may not permit MLPF&S to:

     o    merge or  consolidate,  unless the  surviving  company is a Controlled
          Subsidiary, or

     o    convey or  transfer  its  properties  and assets  substantially  as an
          entirety, except to one or more Controlled Subsidiaries.

EVENTS OF DEFAULT

   
     Unless  otherwise  specified  in  a  prospectus  supplement,  each  of  the
following  will be an Event of Default under the indenture  with respect to each
series of STRYPES:
    

     o    failure  to pay and  discharge  the  STRYPES of that  series  with the
          Underlying  Securities or, if ML&Co.  so elects,  to pay an equivalent
          amount in cash instead of Underlying Securities when due,

     o    failure to pay the  redemption  price or any  redemption  premium with
          respect to any STRYPES of that series when due;

     o    failure to deposit any sinking  fund  payment,  when and as due by the
          terms of any STRYPES of that series;

     o    failure to pay any interest on or any Additional Amounts in respect of
          any STRYPES of that series when due, and continuing for 30 days;

   
     o    failure to perform any other  obligation  of ML&Co.  contained  in the
          indenture  for the  benefit of that  series or in the  STRYPES of that
          series,  continuing for 60 days after written notice has been given to
          ML&Co. by the trustee,  or to ML&Co. and the trustee by the holders of
          at least 10% of the aggregate issue price of the  outstanding  STRYPES
          of that series, as provided in the indenture;
    

     o    specified  events  in  bankruptcy,  insolvency  or  reorganization  of
          ML&Co.; and

     o    any other Event of Default  provided  with  respect to STRYPES of that
          series.

   
     Unless  otherwise  specified  in a  prospectus  supplement,  if an Event of
Default occurs and is continuing  for any series of STRYPES,  the trustee or the
holders of at least 25% in aggregate issue price of the  outstanding  STRYPES of
that series, by notice as provided in the indenture, may declare an amount equal
to the  aggregate  issue  price of all the STRYPES of that  series,  the accrued
interest on the STRYPES and all Additional  Amounts  payable with respect to the
STRYPES of that series  immediately  due and payable in cash. The trustee or the
holders of at least 25% in aggregate issue price of the outstanding  STRYPES may
declare these  amounts due  immediately  as described in the preceding  sentence
without any other  declaration or other action by the trustee or any holder.  At
any time  after a  declaration  of  acceleration,  but before  the  trustee  has
obtained a judgment or decree based on  acceleration,  the holders of a majority
of the  aggregate  issue  price of the  outstanding  STRYPES of that series may,
under certain circumstances, rescind and annul any acceleration if all Events of
Default,  other than the  non-payment of the amount equal to the aggregate issue
price of all the STRYPES of that series due by reason of acceleration, have been
cured or waived as  provided in the  indenture.  See  "Modification  and Waiver"
below.

     The  holders of a majority  in  aggregate  issue  price of the  outstanding
STRYPES  of a series may direct  the time,  method and place of  conducting  any
proceeding for any remedy available to the trustee or exercising any trust power
conferred on the trustee  with  respect to the STRYPES of that series,  provided
that any  direction  is not in conflict  with any rule of law or the  indenture.
Subject  to the  provisions  of the  indenture  relating  to the  duties  of the
trustee, in case an Event of Default shall occur and be continuing,  the trustee
will be under no  obligation  to exercise  any of its rights or powers under the
indenture  at the request or  direction  of any of the holders of STRYPES of any
series,  unless the  holders of that  series  shall have  offered to the trustee
reasonable  security or indemnity  against the costs,  expenses and  liabilities
which might be incurred by it in compliance with any request or direction.

     Unless otherwise  described in the applicable  prospectus  supplement,  the
STRYPES and other series of senior debt  securities  issued under the  indenture
will  not  have  the  benefit  of  any   cross-default   provisions  with  other
indebtedness of ML&Co.

     ML&Co.  will be required to furnish to the trustee  annually a statement as
to the fulfillment by ML& Co. of its obligations under the indenture.
    

MODIFICATION AND WAIVER

   
     Unless  otherwise  specified in a  prospectus  supplement,  ML&Co.  and the
trustee may modify and amend  provisions in the indenture  affecting a series of
STRYPES with the consent of holders of at least 662/3% in aggregate  issue price
of the series of STRYPES affected.  However,  without the consent of each holder
of any STRYPES affected, no amendment or modification to any indenture may:
    

     o    change  the  maturity  date  or  the  stated   maturity  date  or  any
          installment  of interest or  Additional  Amounts on any STRYPES or any
          premium payable on redemption, or change the redemption price,

     o    reduce the amount of Underlying Securities payable with respect to any
          STRYPES  or  reduce  the  amount  of  cash,  or  cash  and  Underlying
          Securities, payable instead of Underlying Securities,

     o    reduce the amount of interest  or  Additional  Amounts  payable on any
          STRYPES  or reduce  the  amount of cash  payable  with  respect to any
          STRYPES upon acceleration,

     o    change the place or  currency  of payment of  interest  or  Additional
          Amounts  on, or any  amount  of cash  payable  with  respect  to,  any
          STRYPES,

     o    impair the right to institute suit for the  enforcement of any payment
          on any STRYPES,  including the payment of Underlying  Securities  with
          respect to any STRYPES,

   
     o    reduce the  percentage  of the  aggregate  issue price of  outstanding
          STRYPES of that  series,  the consent of whose  holders is required to
          modify or amend the indenture,

     o    reduce the  percentage  of the  aggregate  issue price of  outstanding
          STRYPES of that series necessary for waiver of compliance with certain
          provisions of the indenture or for waiver of certain defaults or
    

     o    modify the provisions with respect to modification and waiver.

   
     Except as provided in the indenture, no modification of or amendment to the
indenture may  adversely  affect the rights of a holder of any other senior debt
security without the consent of each holder affected.

     The  holders of a majority of the  aggregate  issue price of each series of
STRYPES may waive compliance by ML&Co.  with certain  restrictive  provisions of
the  indenture.  Any past  default  with respect to any series of STRYPES may be
waived by the holders of a majority in aggregate  issue price of the outstanding
STRYPES of any series may waive any past  default  with  respect to that series,
except a default:
    

     o    in the payment of the  Underlying  Securities or any other amounts due
          and payable or deliverable under the STRYPES of that series; or

   
     o    in respect of an obligation  of ML & Co.  contained in, or a provision
          of, the  indenture  which  cannot be modified  under the terms of that
          indenture  without  the  consent  of each  holder of each  outstanding
          series of STRYPES affected.
    

GOVERNING LAW

   
     The  indenture  and the  STRYPES  will be  governed  by, and  construed  in
accordance with, the laws of the State of New York.
    


<PAGE>


                              PLAN OF DISTRIBUTION

     ML&Co.  may sell STRYPES to the public  through  MLPF&S.  The  accompanying
prospectus  supplement  describes  the  terms  of  the  STRYPES  being  offered,
including the public offering or purchase  price,  any discounts and commissions
to be allowed or paid, all other items constituting  underwriting  compensation,
the discounts and commissions to be allowed or paid to dealers,  if any, and the
exchanges,  if  any,  on  which  the  STRYPES  will  be  listed.  Under  certain
circumstances,  ML&Co. may repurchase  STRYPES and reoffer them to the public as
set forth  above.  ML&Co.  may also arrange for  repurchases  and resales of the
STRYPES by dealers.

     The  underwriting of STRYPES will conform to the  requirements set forth in
the  applicable  sections  of Rule  2720 of the  Conduct  Rules of the  National
Association of Securities Dealers, Inc.

                       WHERE YOU CAN FIND MORE INFORMATION

     We file reports,  proxy statements and other  information with the SEC. Our
SEC  filings  are also  available  over the  Internet  at the  SEC's web site at
http://www.sec.gov.  You may also read and copy any document we file by visiting
the SEC's public  reference  rooms in Washington,  D.C., New York, New York, and
Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further information
about the public reference rooms. You may also inspect our SEC reports and other
information at the New York Stock Exchange, Inc., 20 Broad Street, New York, New
York 10005.

     We have filed a  registration  statement  on Form S-3 with the SEC covering
the STRYPES and other  securities.  For further  information  on ML&Co.  and the
STRYPES, you should refer to our registration  statement and its exhibits.  This
prospectus  summarizes material provisions of contracts and other documents that
we refer you to. Because the prospectus may not contain all the information that
you may find important,  you should review the full text of these documents.  We
have  included  copies  of  these  documents  as  exhibits  to our  registration
statement.

                INCORPORATION OF INFORMATION WE FILE WITH THE SEC

     The SEC allows us to incorporate by reference the  information we file with
them, which means:

     o    incorporated documents are considered part of the prospectus;

     o    we can disclose important information to you by referring you to those
          documents; and

     o    information  that we file with the SEC will  automatically  update and
          supersede this incorporated information.

     We  incorporate  by reference the  documents  listed below which were filed
with the SEC under the Exchange Act:

   
     o    annual report on Form 10-K for the year ended December 25, 1998; and

     o    current reports on Form 8-K dated December 28, 1998, January 19, 1999,
          February 17, 1999, February 18, 1999, February 22, 1999,  February 23,
          1999 and March 26, 1999.

     We also  incorporate by reference  each of the following  documents that we
will file with the SEC after the date of this prospectus  until this offering is
completed or after the date of this initial  registration  statement  and before
the effectiveness of the registration statement:
    

     o    reports filed under Sections 13(a) and (c) of the Exchange Act;

     o    definitive  proxy or information  statements filed under Section 14 of
          the  Exchange  Act in  connection  with any  subsequent  stockholders'
          meeting; and

     o    any reports filed under Section 15(d) of the Exchange Act.

   
     You should rely only on information  contained or incorporated by reference
in this prospectus. We have not, and MLPF&S has not, authorized any other person
to provide you with different information. If anyone provides you with different
or inconsistent  information,  you should not rely on it. We are not, and MLPF&S
is not, making an offer to sell these securities in any  jurisdiction  where the
offer or sale is not permitted.
    

     You should  assume that the  information  appearing in this  prospectus  is
accurate  as of the  date of  this  prospectus  only.  Our  business,  financial
condition and results of operations may have changed since that date.

     You  may  request  a copy  of any  filings  referred  to  above  (excluding
exhibits),  at no cost, by contacting us at the following address:  Mr. Lawrence
M. Egan,  Jr.,  Corporate  Secretary's  Office,  Merrill Lynch & Co.,  Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.

                                     EXPERTS

   
     The consolidated financial statements and the related financial statement
schedule incorporated in this prospectus by reference from the Annual Report
on Form 10-K of Merrill Lynch & Co., Inc. and subsidiaries have been audited
by Deloitte & Touche LLP, independent auditors, as stated in their reports
(which express an unqualified opinion and which report on the consolidated
financial statements includes an explanatory paragraph for the change in
accounting method for certain internal-use software development costs), which
are incorporated herein by reference, and have been so incorporated in
reliance upon the reports of such firm given upon their authority as experts
in accounting and auditing.


    

<PAGE>
   
The  information in this  prospectus is not complete and may be changed.  We may
not sell  these  securities  until the  registration  statement  filed  with the
Securities and Exchange Commission is effective. This prospectus is not an offer
to  sell  these  securities  and it is not  soliciting  an  offer  to buy  these
securities in any state where the offer or sale is not permitted.
    

   
                              Subject to Completion
                   Preliminary Prospectus dated March 29, 1999
    

PROSPECTUS
- ----------

                                     [LOGO]

   
                     %Trust Originated Preferred Securities
                    Merrill Lynch Preferred Capital Trust VI
                        Liquidation Amount $25 per TOPrS
            guaranteed to the extent described in this prospectus by
                            Merrill Lynch & Co., Inc.
    

                         ------------------------------
                                        

THE TOPrS:                                        DISTRIBUTIONS ON THE TOPrS:

o  TOPrS represent preferred ownership   o  Each   TOPrS   pays   a   quarterly
   interests   in  the  assets  of  ML      distribution  at the rate of ____%,
   Trust.  The sole assets of ML Trust      or $__ per TOPrS  per  year,  if ML
   will be the  partnership  preferred      Partnership  pays  distributions on
   securities of ML Partnership  which      the      partnership      preferred
   represent    preferred    ownership      securities.
   interests   in  the  assets  of  ML   
   Partnership.                          
                                         
                                         
o  The sole  assets of ML  Partnership   o  If  ML  Trust  and  ML  Partnership
   will be the  debentures  issued  by      redeem    the    TOPrS    and   the
   ML&Co.  and its affiliates and cash      partnership  preferred  securities,
   and  other   permitted   securities      you   will    receive    $25   plus
   described in this prospectus.            accumulated  distributions for each
                                            TOPrS you own.                     
o  The  TOPrS   and  the   partnership   
   preferred  securities  do not  have   
   any stated maturity.                  
                                         
                                         o   If ML Trust redeems the TOPrS or is
o  ML  Trust  will  apply  to have the       liquidated, but ML Partnership does
   TOPrS  trade on the New York  Stock       not    redeem    the    partnership
   Exchange  starting  within  30 days       preferred   securities,   you  will
   after the TOPrS are issued.               receive the  partnership  preferred
                                             securities rather than cash.       
                                         
o  Closing Date: [DATE]                  

                                         o   ML&Co.  will guarantee the TOPrS to
                                             the   extent   described   in  this
                                             prospectus.
    



   
                     INVESTING IN THE TOPrS INVOLVES RISKS.
                      PLEASE SEE "RISK FACTORS" ON PAGE 6.
    

                                                         Per TOPrS         Total
                                                         ---------         -----
          Public offering price....................        $25.00      $
          Proceeds to ML Trust.....................        $25.00      $
   
          
     If you purchase the TOPrS and settlement occurs after _________,  1999, you
will be required to pay accumulated  distributions on the aggregate  liquidation
amount of your TOPrS at a rate of ___% per year from that date.  Expenses of the
offering and  underwriting  commissions of $____ per TOPrS,  or $_____ per TOPrS
for  sales of more  than  10,000  TOPrS to a single  purchaser,  will be paid by
ML&Co.
    

     Neither the  Securities and Exchange  Commission  nor any state  securities
commission has approved or disapproved of these securities or determined if this
prospectus  is truthful or  complete.  Any  representation  to the contrary is a
criminal offense.

                         ------------------------------

                               Merrill Lynch & Co.

                         ------------------------------

   
                 The date of this prospectus is         , 199 .

/SM/"TOPrS" and "Trust Originated Preferred  Securities" are service marks owned
by Merrill Lynch & Co., Inc.
    

<PAGE>
                                TABLE OF CONTENTS

                                                                            Page
                                                                            ----

   
SUMMARY INFORMATION--Q&A.......................................................3
RISK FACTORS...................................................................6
MERRILL LYNCH & CO., INC......................................................10
USE OF PROCEEDS...............................................................10
RATIO OF EARNINGS TO FIXED CHARGES............................................11
MERRILL LYNCH PREFERRED CAPITAL TRUST VI......................................12
MERRILL LYNCH PREFERRED FUNDING  VI, L.P......................................14
DESCRIPTION OF THE TOPrS......................................................16
DESCRIPTION OF THE TRUST GUARANTEE............................................28
DESCRIPTION OF THE PARTNERSHIP PREFERRED SECURITIES...........................31
DESCRIPTION OF THE PARTNERSHIP GUARANTEE......................................44
UNITED STATES FEDERAL INCOME TAXATION.........................................47
UNDERWRITING..................................................................51
WHERE YOU CAN FIND MORE INFORMATION...........................................52
INCORPORATION OF INFORMATION WE FILE WITH THE SEC.............................53
LEGAL MATTERS.................................................................53
EXPERTS.......................................................................54
INDEX OF CERTAIN DEFINED TERMS................................................55
INDEX TO FINANCIAL STATEMENTS................................................F-1
INDEPENDENT AUDITORS' REPORT.................................................F-2
NOTES TO BALANCE SHEET OF MERRILL LYNCH PREFERRED FUNDING VI, L.P............F-3
INDEPENDENT AUDITORS' REPORT.................................................F-4
NOTES TO BALANCE SHEET OF MERRILL LYNCH PREFERRED CAPITAL TRUST VI...........F-5
    

<PAGE>

                            SUMMARY INFORMATION--Q&A

     This  summary  includes  questions  and  answers  that  highlight  selected
information  from the prospectus to help you understand the TOPrS.  This summary
may not contain all the  information  that may be  important  to you. You should
carefully read this  prospectus to fully  understand the terms of the TOPrS,  as
well as the tax and other  considerations  that  should be  important  to you in
making a decision  about whether to invest in the TOPrS.  You should pay special
attention to the "Risk  Factors"  section to determine  whether an investment in
the TOPrS is appropriate for you.

     In this prospectus:

     o    references  to "ML&Co.",  "we",  "us" and "our" are to Merrill Lynch &
          Co., Inc.,

     o    references to "ML Trust"  are to Merrill Lynch Capital Preferred Trust
          VI, and

     o    references to "ML Partnership"  are to Merrill Lynch Preferred Funding
          VI, L.P.

WHAT ARE THE TOPrS?

     Each TOPrS is a preferred  interest in the assets of ML Trust.  We will own
all of the common  securities  of ML Trust.  The sole assets of ML Trust will be
the partnership  preferred securities issued by ML Partnership,  which represent
preferred  ownership  interests in the assets of ML Partnership.  ML Partnership
will use  substantially  all of the  proceeds  from the sale of its  partnership
preferred  securities  and our  capital  contribution  as general  partner of ML
Partnership to purchase debentures from us and one or more of our affiliates.

WHAT IS THE ML TRUST?

     ML Trust is a business trust established under Delaware law that exists for
the sole purpose of issuing the TOPrS and investing the proceeds and engaging in
incidental activities.

WHAT IS ML PARTNERSHIP?

     ML Partnership is a limited partnership established under Delaware law. The
assets of ML Partnership will be:

     o    the debentures issued by us and our affiliates; and

     o    cash and securities not issued by us or our affiliates.

We are the general partner of ML Partnership.

WHAT DISTRIBUTIONS WILL I RECEIVE ON THE TOPrS?

   
     The TOPrS  provide for a quarterly  cash  distribution  at the rate of % or
$___ per year for each TOPrS you own.  Distributions are payable on each       ,
                  , and              , beginning               ,               .
Distributions  will  accumulate  from the date ML Trust  originally  issues  the
TOPrS.  Because  the sole assets of ML Trust will be the  partnership  preferred
securities of ML Partnership and  substantially  all of ML Partnership's  assets
will be the debentures  issued by us and our  affiliates,  ML Trust's ability to
pay  distributions  on the  TOPrS  is  ultimately  dependent  upon  our  and our
affiliates' ability to make interest payments on those debentures.  If we or our
affiliates  exercise  our  right to defer  making  an  interest  payment  on our
debentures then held by ML Partnership,  ML Partnership  will not be able to pay
any distributions on its preferred partnership  securities and ML Trust will not
be able to pay quarterly  distributions  to you until we resume making  interest
payments on those debentures.
    

     In addition, ML Partnership is required to pay dividends on its partnership
preferred  securities  only if they are declared by us as general  partner of ML
Partnership. As a result, you may not receive any distributions on your TOPrS if
ML Trust does not receive dividends on the partnership preferred securities.

WHAT ARE THE DEBENTURES?

   
     The  debentures  are long term  loans made by ML  Partnership  to us or our
affiliates from time to time. These  debentures will be substantially  all of ML
Partnership's assets. The debentures that we issue to ML Partnership will be our
senior unsecured  obligations and will rank equally with all of our other senior
unsecured obligations. The debentures issued by our affiliates to ML Partnership
will be unsecured  obligations of our  affiliates  and we will  guarantee  those
obligations  on a  subordinated  basis.  We and our  affiliates may exercise our
right to defer interest payments on the debentures for a period of not more than
six consecutive calendar quarters.
    

CAN THE TOPrS BE REDEEMED?

     Yes. If ML Partnership redeems the partnership preferred  securities,  each
TOPrS will be redeemed for $25 plus any accumulated and unpaid  distributions to
the date of redemption.  ML  Partnership  can redeem the  partnership  preferred
securities in whole or in part from time to time on or after               .

     The trustees of ML Trust can elect to liquidate ML Trust and distribute the
partnership  preferred securities to you if at any time the specified changes in
U.S. tax law or U.S. investment company law described in this prospectus occur.

     Additionally,  we, as general partner of ML Partnership,  have the right to
redeem the partnership  preferred  securities and you will receive cash from the
subsequent  automatic  redemption  of the  TOPrS if at any  time  the  specified
changes  in U.S.  tax law or  U.S.  investment  company  law  described  in this
prospectus occur.

     Neither the partnership  preferred securities nor the TOPrS can be redeemed
at any  time  at the  option  of  their  holders.  Neither  the  TOPrS  nor  the
partnership preferred securities have any scheduled maturity.

ARE THERE ANY RISKS ASSOCIATED WITH MY INVESTMENT?

     Yes, an  investment  in the TOPrS is subject to risk.  Please  refer to the
section  entitled "Risk  Factors" in this  prospectus for a description of these
risks.

WHAT HAPPENS IF ML TRUST DOESN'T PAY DISTRIBUTIONS ON THE TOPrS?

     If you have not received a  distribution  on the TOPrS for six  consecutive
calendar   quarters,   during  that  period   until  all   scheduled   quarterly
distributions  are paid or set aside for  payment to you,  we may not declare or
pay dividends on, acquire, or make a liquidation payment with respect to, any of
our  outstanding  capital  stock.  In  addition,  we will not  permit any of our
finance  subsidiaries  to make any dividend  payment on, any  distribution  with
respect to, any acquisition of or any  liquidation  payment with respect to, any
of their outstanding preferred securities.

     This  limitation  prevents us from paying  cash or other  dividends  to the
shareholders  of our capital  stock if payments are not being made on the TOPrS,
any debenture  issued by us or our  affiliates and held by ML Partnership or the
guarantees. However, these provisions will not restrict:

     o    our ability to pay dividends or  distributions on our capital stock in
          shares of, or options, warrants or rights to subscribe for or purchase
          shares of our capital stock;

     o    our ability to convert or exchange  our common stock of one class into
          our common stock of another class;

     o    our ability to redeem or purchase any rights under a rights  agreement
          described  in this  prospectus  or issue  preferred  stock under those
          rights; and

     o    the ability of us and our  affiliates to purchase our capital stock in
          connection with  transactions  for the account of customers of ours or
          our affiliates or in connection  with the  distribution  or trading of
          our capital stock.

WHAT ARE THE GUARANTEES?

     We will guarantee, to the extent described in this prospectus:

     o    declared  distributions by ML Partnership to ML Trust and distribution
          of quarterly payments on the TOPrS by ML Trust to you to the extent ML
          Trust receives distributions on the partnership preferred securities;

     o    the redemption amount due to you if ML Trust redeems the TOPrS;

     o    the liquidation amount of the TOPrS if ML Trust is liquidated; and

     o    interest  payments on debentures  issued by our affiliates and held by
          ML Partnership.

     However, these guarantees do not apply to either:

     o    current  distributions on the partnership  preferred securities unless
          and until ML Partnership  declares  distributions out of funds legally
          available for payment; or

     o    liquidating  distributions  on the  partnership  preferred  securities
          unless ML Partnership has assets available for payment.

     If ML  Partnership  does  not  declare  distributions  on  the  partnership
preferred   securities,   ML  Trust  will  not  have  sufficient  funds  to  pay
distributions  on the  TOPrS.  In that  case,  you will have no right to receive
those  distributions  because our guarantee  does not cover the  non-payment  of
distributions on the partnership  preferred  securities unless the distributions
are declared.

     Our obligations under the guarantees are subordinate and junior in right of
payment to all other of our  liabilities  and rank  equally with our most senior
preferred  stock and similar  guarantees  of ours with  respect to previous  and
future  issues of TOPrS and other  preferred  stock by any other of our  finance
subsidiaries.

WHAT HAPPENS IF ML TRUST IS LIQUIDATED?

     If ML Trust is liquidated, other than in connection with any change in U.S.
tax or investment  company law described above, for each TOPrS you own, you will
be entitled to receive $25 plus any  accumulated  and unpaid  distributions  per
TOPrS.

DO I HAVE VOTING RIGHTS?

     Generally,  you will not have any voting  rights,  except under the limited
circumstances  described below. The holders of a majority of the TOPrS, however,
have the right to direct the time, method and place of conducting any proceeding
for any remedy available to the property trustee,  or direct the exercise of any
trust or power conferred upon the property trustee.

IN WHAT FORM WILL THE TOPrS BE ISSUED?

     The  TOPrS  will  be  issued  in  the  form  of  a  global  certificate  or
certificates registered in the name of Cede & Co., as nominee for The Depository
Trust  Company also known as DTC.  This means you will not receive a certificate
for your TOPrS.  Your interests in the TOPrS will be evidenced by, and transfers
of  the  TOPrS  will  be  effected  only  through,  records  maintained  by  the
participants in DTC.

CAN YOU TELL ME MORE ABOUT ML&CO.?

     Merrill  Lynch  & Co.,  Inc.  is a  holding  company.  Our  subsidiary  and
affiliated  companies  provide  investment,  financing,  insurance  and  related
products on a global basis. Our principal executive offices are located at World
Financial Center,  North Tower, 250 Vesey Street,  New York, New York 10281. Our
telephone  number is (212) 449-1000.  For information  about us, see the section
"Merrill Lynch & Co., Inc." in this  prospectus.  You should also read the other
documents  we have filed with the SEC,  which you can find by  referring  to the
section entitled "Where You Can Find More Information" in this prospectus.

WILL THE TOPrS BE LISTED ON AN EXCHANGE?

   
     ML Trust has applied to list the TOPrS on the NYSE under the trading symbol
"  ". If approved  for  listing,  trading on the NYSE will begin  within 30 days
after ML Trust issues the TOPrS.  The listing of the TOPrS will not  necessarily
ensure that a liquid trading market will be available for the TOPrS.
    


<PAGE>
                                  RISK FACTORS

     Your  investment  in the TOPrS will  involve  risks.  You should  carefully
consider the following discussion of risks before deciding whether an investment
in the TOPrS is suitable for you.

YOU  WILL  ONLY  RECEIVE  DISTRIBUTIONS  IF  DISTRIBUTIONS  ON  THE  PARTNERSHIP
PREFERRED SECURITIES ARE DECLARED

   
     ML Trust's  ability to pay  distributions  on the TOPrS to you is dependent
upon its receipt of distributions on the partnership preferred securities. If we
or our  affiliates  defer or fail to make interest or principal  payments on the
debentures  and we  fail  to  make  guarantee  payments  on the  guarantees,  ML
Partnership  will  lack  the  funds  necessary  to  pay   distributions  on  the
partnership  preferred  securities.  If ML  Partnership  does  not  pay  current
distributions on the partnership preferred securities, either because we, as the
general  partner,  did  not  declare  distributions  to be made  or  because  ML
Partnership lacks sufficient funds, ML Trust will not have funds to make current
distributions  on the TOPrS.  If ML Trust does not make  payments  to you on the
TOPrS, we will be restricted  from,  among other things,  paying cash or certain
other dividends on our capital stock.
    

THERE MAY BE TAX CONSEQUENCES TO YOU IF WE FAIL TO PAY YOU DISTRIBUTIONS

     As a holder of the TOPrS,  each of which  represents a preferred  ownership
interest in the assets of ML Trust,  even if ML Partnership fails to pay current
distributions on the partnership preferred  securities,  you will be required to
accrue income, for U.S. federal income tax purposes,  on the cumulative deferred
distributions and accumulated  interest allocable to your proportionate share of
the partnership  preferred  securities  held by ML Trust. As a result,  you will
recognize  income for U.S. federal income tax purposes in advance of the receipt
of cash and will not receive the cash from ML Trust related to that distribution
if you dispose of your TOPrS  before the record date for the date on which those
distributions are made.

YOU MAY NOT RECEIVE FULL DISTRIBUTIONS IF ML PARTNERSHIP HAS INSUFFICIENT INCOME
OR ASSETS

     You are subject to the risk that the quarterly or liquidating distributions
paid on the  TOPrS  will  not  match  the  rate  paid on the  assets  held by ML
Partnership,  including the debentures and any other  securities  acquired by ML
Partnership in the future.

     This mismatch could occur if:

     o    we, as the general partner of ML Partnership,  in our sole discretion,
          do not declare  distributions on the partnership  preferred securities
          or  if  ML  Partnership   receives   insufficient   amounts  from  its
          investments to pay the additional  compounded  distributions that will
          accumulate on any unpaid distributions,

     o    ML  Partnership  reinvests  the proceeds  received  from the assets it
          initially holds upon their  retirement or at their maturities in other
          assets which do not generate  income  sufficient to pay full dividends
          in respect of the partnership  preferred securities at a rate of % per
          annum, or

     o    ML  Partnership  invests in assets that are not  guaranteed  by us and
          that cannot be liquidated by ML Partnership  for an amount  sufficient
          to pay any  distributions on the partnership  preferred  securities in
          full or if ML Partnership does not make any distributions.

     ML Trust will not have sufficient funds available to pay you full quarterly
or liquidating  distributions  on the TOPrS if ML Partnership  lacks  sufficient
funds  to  make  quarterly  or  liquidating  distributions  on  the  partnership
preferred securities in full.

OUR OBLIGATIONS UNDER THE GUARANTEES AND OUR DEBENTURES ARE SUBORDINATED

     Our  obligations  under  the  guarantees  are  unsecured  and will  rank in
priority of payment:

     o    subordinate  and  junior  in  right  of  payment  to all of our  other
          liabilities; and

     o    equally with:

     o    any of our most senior preferred stock issued from time to time, and

     o    similar  guarantees of ours with respect to previous and future issues
          of TOPrS and other  series of  preferred  stock by any of our  finance
          subsidiaries.

This means that our obligations  under the guarantees will not be paid unless we
can  satisfy  in  full  all of  our  other  obligations  ranking  senior  to the
guarantees.

   
     Our  obligations   under  our  debentures  issued  to  ML  Partnership  are
subordinate and junior in right of payment to all of our senior indebtedness. At
December  25,  1998,  we  had  outstanding   senior   indebtedness   aggregating
approximately  $75.4 billion  which would have ranked senior to our  obligations
under the guarantees and our debentures.
    

     There are no terms in the TOPrS, the partnership preferred securities,  the
guarantees  or the  debentures  that  limit  our  ability  to  incur  additional
indebtedness, including indebtedness that ranks senior to the guarantees.

ML TRUST'S AND ML PARTNERSHIP'S INVESTMENTS ARE NOT DIVERSIFIED

     Because the investments of ML Trust and ML Partnership are not diversified,
you are subject to a greater risk that their assets will not generate sufficient
income  to pay  current  and  liquidating  distributions  on the  TOPrS  and the
partnership preferred securities than you would with a vehicle whose investments
were diversified and less exposed to the risk that non-payment on any particular
investment asset would impair its ability to pay distributions to holders of its
capital stock.

REDEMPTION  OF THE TOPrS OR THE PARTNERSHIP PREFERRED SECURITIES MAY AFFECT YOUR
RETURN

   
     If your TOPrS are exchanged for the partnership preferred securities,

     o    the trading value of the partnership preferred securities may be lower
          than the trading value of the TOPrS which may result in a lower return
          upon your sale of the partnership preferred securities; and

     o    you may  incur an  additional  tax  liability  in  excess  of what you
          originally contemplated.
    

     Your TOPrS may be  redeemed  for cash or you may  receive  the  partnership
preferred securities in exchange for your TOPrS in the event that:

     (1)  a change in U.S. tax law occurs which causes:

          o    ML  Trust  to be  subject  to  U.S.  federal  income  tax  on the
               distributions it receives or accrues on the partnership preferred
               securities;

          o    ML  Partnership  to be subject to U.S.  federal income tax on the
               income  or  interest  payments  it  receives  or  accrues  on the
               investments it holds;

          o    ML Trust or ML  Partnership  to be subject to more than a minimal
               amount of other taxes, duties or governmental charges; or

          o    interest payable by us or any of our affiliates on the debentures
               then held by ML Partnership to not be deductible for U.S. federal
               income tax purposes; or

     (2)  a change in U.S. investment company law occurs which requires ML Trust
          or ML Partnership to register as an investment company.

   
     Because  you  may  receive  partnership   preferred   securities  upon  the
occurrence  of one of the  events  described  above,  in  connection  with  your
investment  decision with regard to the TOPrS, you are also making an investment
decision  with  regard  to the  partnership  preferred  securities.  You  should
carefully  review  all  the  information  regarding  the  partnership  preferred
securities contained in this prospectus.
    

ENFORCEMENT OF CERTAIN RIGHTS BY OR ON YOUR BEHALF IS LIMITED

     The special  representative's  ability to take action on your behalf  under
our guarantee of the  partnership  preferred  securities  is limited,  and it is
uncertain that you would receive a distribution on the TOPrS even if the special
representative  took any action or was successful in recovering  funds under our
guarantee.   This  is  because   under  no   circumstances   will  the   special
representative   have  authority  to  cause  the  general   partner  to  declare
distributions on the partnership preferred securities. As a result, although the
special representative may be able to enforce ML Partnership's creditors' rights
to  accelerate  and  receive  payments  in  respect  of our and our  affiliates'
debenture and our guarantee of those  debentures,  rather than being required to
declare and make  distributions  on the  partnership  preferred  securities,  ML
Partnership   would  be  entitled  to  reinvest  those  payments  in  additional
debentures of ours and our  affiliates,  subject to satisfying the  reinvestment
criteria.

     If at any time:

     o    you have not received a distribution  on the TOPrS for six consecutive
          calendar quarters;

     o    an event of default  occurs and is continuing on any debenture  issued
          by us or our affiliates and then held by ML Partnership; and

     o    we default on our obligations  under our guarantee of the TOPrS or the
          partnership preferred securities;

then:

     o    you would  rely on the  enforcement  by the  property  trustee  of its
          rights, as a holder of the partnership preferred  securities,  against
          us, as guarantor of the partnership  preferred  securities,  including
          the right to direct the special representative to enforce

          (1)  ML Partnership's  creditors' rights and other rights with respect
               to our and our affiliate's  debentures and our guarantee of those
               debentures,

          (2)  the rights of the holders of the partnership preferred securities
               under our guarantee of the partnership preferred securities, and

          (3)  the rights of the holders of the partnership preferred securities
               to receive distributions,  only if and to the extent declared out
               of  funds  legally  available  for  payment,  on the  partnership
               preferred securities, and

     o    ML  Trustee  under our  guarantee  of the TOPrS will have the right to
          enforce the terms of the guarantee.

YOU HAVE LIMITED VOTING RIGHTS

     As a holder of the TOPrS you will have limited  voting  rights and will not
be entitled to vote to appoint, change, or to increase or decrease the number of
trustees of ML Trust.  As holder of all of ML Trust's common  securities,  those
rights are ours exclusively.

   
THERE IS NO PRIOR MARKET FOR THE TOPrS

     This  series  of  TOPrS  constitutes  a new  issue  of  securities  with no
established  trading market. ML Trust has applied to list the TOPrS on the NYSE.
There can be no assurance that an active market for the TOPrS will develop or be
sustained in the future on the NYSE. Although the underwriters have indicated to
us that they intend to make a market in the TOPrS,  as permitted  by  applicable
laws and  regulations,  they are not obligated to do so and may  discontinue any
market-making  activities at any time without notice.  Accordingly,  there is no
assurance  that a trading market for the TOPrS will exist and no assurance as to
the liquidity of any trading market.
    

     We will  only  sell the  TOPrS to those  investors  for whom the  TOPrS are
considered suitable in light of their particular circumstances.


<PAGE>
                            MERRILL LYNCH & CO., INC.

     We are a holding company that,  through our U.S. and non-U.S.  subsidiaries
and  affiliates  such as Merrill  Lynch,  Pierce,  Fenner & Smith  Incorporated,
Merrill Lynch Government Securities Inc., Merrill Lynch Capital Services,  Inc.,
Merrill Lynch  International,  Merrill Lynch Capital Markets Bank Ltd.,  Merrill
Lynch Asset Management L.P. and Merrill Lynch Mercury Asset Management, provides
investment,  financing,  advisory,  insurance,  and related products on a global
basis, including:

     o    securities brokerage, trading and underwriting;

     o    investment  banking,   strategic   services,   including  mergers  and
          acquisitions and other corporate finance advisory activities;

     o    asset  management  and other  investment  advisory  and  recordkeeping
          services;

     o    trading and brokerage of swaps, options,  forwards,  futures and other
          derivatives;

     o    securities clearance services;

     o    equity, debt and economic research;

     o    banking,  trust and lending services,  including  mortgage lending and
          related services; and

     o    insurance sales and underwriting services.

We provide  these  products and  services to a wide array of clients,  including
individual investors, small businesses, corporations,  governments, governmental
agencies and financial institutions.

     Our principal executive office is located at World Financial Center,  North
Tower, 250 Vesey Street, New York, New York 10281; our telephone number is (212)
449-1000.

     If you want to find more  information  about us,  please  see the  sections
entitled "Where You Can Find More Information" and "Incorporation of Information
We File with the SEC" in this prospectus.

                                 USE OF PROCEEDS

   
     ML Trust will use the proceeds  that it receives from the sale of the TOPrS
and its common securities to purchase the partnership preferred securities,  and
those  proceeds will be used by ML Partnership to invest in debentures and other
permitted   investments.   See   "Description  of  the   Partnership   Preferred
Securities--Partnership  Investments". We and our affiliates, the issuers of the
debentures,  intend to use the net proceeds from the sale of the  debentures for
general corporate purposes. Our general corporate purposes may include financing
the  activities  of our  subsidiaries,  financing  our  assets  and those of our
subsidiaries,  lengthening the average  maturity of our borrowings and financing
acquisitions.  Until  we use  the  net  proceeds  from  the  sale  of any of our
securities  for  general  corporate  purposes,  we will use the net  proceeds to
reduce our short-term indebtedness or for temporary investments.  We expect that
we will,  on a recurrent  basis,  engage in  additional  financings  as the need
arises to finance our growth, through acquisitions or otherwise,  or to lengthen
the average maturity of our borrowings. To the extent that TOPrS being purchased
for resale by MLPF&S are not  resold,  the  aggregate  proceeds  that we and our
subsidiaries would receive would be reduced.
    


<PAGE>


                       RATIO OF EARNINGS TO FIXED CHARGES

   
     In 1998, we acquired the outstanding  shares of Midland Walwyn,  Inc., in a
transaction accounted for as a  pooling-of-interests.  The following information
for the fiscal years 1994 through 1997 has been restated as if the two entities
had always been combined.
    

     The following  table sets forth our historical  ratios of earnings to fixed
charges for the periods indicated:

<TABLE>
<CAPTION>

                                                         Year Ended Last Friday in December
                                                     1994     1995     1996     1997      1998
                                                     ----     ----     ----     ----      ----
<S>                                                  <C>      <C>      <C>      <C>       <C>
Ratio of earnings to fixed charges(a).........        1.2      1.2      1.2      1.2      1.1
</TABLE>
______________
(a)  The effect of combining  Midland Walwyn did not change the ratios  reported
     for the fiscal years 1994 through 1997.

   
         For the purpose of calculating  the ratio of earnings to fixed charges,
"earnings"  consist of earnings from continuing  operations  before income taxes
and  fixed  charges,  excluding  capitalized  interest  and  preferred  security
dividend  requirements.  "Fixed charges" consist of interest costs, the interest
factor in rentals,  amortization  of debt  issuance  costs,  preferred  security
dividend requirements of subsidiaries, and capitalized interest.
    


<PAGE>


   
                    MERRILL LYNCH PREFERRED CAPITAL TRUST VI

     Merrill  Lynch  Preferred  Capital Trust VI is a statutory  business  trust
formed  under the  Delaware  Business  Trust  Act,  as  amended,  pursuant  to a
declaration of trust and the filing of a certificate of trust with the Secretary
of State of the State of Delaware on December 7, 1998; the  declaration  will be
amended  and  restated  in its  entirety  substantially  in the form filed as an
exhibit to the  registration  statement of which this  prospectus is a part. The
declaration  will be qualified as an indenture  under the Trust Indenture Act of
1939, as amended.  Upon issuance of the TOPrS,  the purchasers of the TOPrS will
own all the TOPrS issued by ML Trust.  See  "Description  of the TOPrS".  ML&Co.
will acquire ML Trust's  common  securities in an amount equal to at least 3% of
the total capital of ML Trust.  ML Trust will use all the proceeds  derived from
the issuance of the TOPrS and the common  securities  (collectively,  the "Trust
Securities")   to  purchase  the  partnership   preferred   securities  from  ML
Partnership and, accordingly,  the assets of ML Trust will consist solely of the
partnership preferred securities. ML Trust exists for the exclusive purpose of:
    

     o    issuing  the  Trust  Securities   representing   undivided  beneficial
          ownership interests in the assets of ML Trust,

     o    investing  the  gross   proceeds  of  the  Trust   Securities  in  the
          partnership preferred securities, and

     o    engaging in only those other activities necessary or incidental to the
          foregoing purposes.

     Under the declaration, there will initially be four trustees for ML Trust.

   
     o    Two regular  trustees  who will be  individuals  who are  employees or
          officers of or who are affiliated with ML&Co.

     o    A  property  trustee  who  will  be a  financial  institution  that is
          unaffiliated  with ML&Co. and is the indenture trustee for purposes of
          compliance with the provisions of the Trust Indenture Act.

     o    The  Delaware  trustee  who  will  be an  entity  that  maintains  its
          principal place of business in the State of Delaware.

     Initially,  The Chase Manhattan Bank, a New York banking corporation,  will
act as property  trustee,  and its affiliate,  Chase Manhattan Bank Delaware,  a
Delaware corporation,  will act as Delaware trustee until, in each case, removed
or replaced by the holder of the common  securities.  For purposes of compliance
with the Trust  Indenture Act, The Chase Manhattan Bank will also act as trustee
under the Trust Guarantee,  as defined in this  prospectus,  as property trustee
under the  declaration and as trustee under the indenture under which the ML&Co.
Debenture, as defined in this prospectus, is issued.

     The  property  trustee  will  hold  title  to  the  partnership   preferred
securities  for the  benefit  of the  holders of the Trust  Securities,  and the
property  trustee  will  have the  power to  exercise  all  rights,  powers  and
privileges  with  respect  to the  partnership  preferred  securities  under the
Amended and  Restated  Agreement  of Limited  Partnership  to be entered into by
ML&Co. and ML Trust as the holder of the partnership  preferred  securities.  In
addition,  the property trustee will maintain  exclusive control of the property
account  which is a  segregated  non-interest  bearing  bank account to hold all
payments made in respect of the partnership preferred securities for the benefit
of the holders of the Trust  Securities.  The trust guarantee  trustee will hold
the Trust Guarantee for the benefit of the holders of the TOPrS.  ML&Co., as the
holder of all the common securities,  will have the right to appoint,  remove or
replace any of the  trustees and to increase or decrease the number of trustees,
provided  that at least one trustee  shall be a Delaware  trustee,  at least one
trustee  shall be the  property  trustee  and at least  one  trustee  shall be a
regular  trustee.  ML&Co.  will  pay  all  fees  and  expenses  related  to  the
organization  and  operations  of  ML  Trust,   including  any  taxes,   duties,
assessments  or  governmental  charges of whatever  nature imposed by the United
States  or any  other  domestic  taxing  authority  upon ML  Trust,  other  than
withholding  taxes,  and the  offering of the TOPrS and be  responsible  for all
debts and obligations of ML Trust,  other than those obligations with respect to
the Trust Securities.
    

     For so long as the TOPrS remain outstanding, ML&Co. will be obligated to:

     o    maintain 100% direct ownership of the common securities,

     o    cause  ML  Trust  to  remain a  statutory  business  trust  and not to
          voluntarily dissolve,  wind-up, liquidate or be terminated,  except as
          permitted by the declaration, and

     o    use its commercially  reasonable  efforts to ensure that ML Trust will
          not be

          (A)  an investment  company for purposes of the Investment Company Act
               of 1940, as amended, or

          (B)  classified  as other  than a  grantor  trust  for  United  States
               Federal income tax purposes.

     The rights of the holders of the TOPrS,  including economic rights,  rights
to information  and voting rights,  are as set forth in the  declaration and the
Delaware Trust Act. See  "Description  of the TOPrS".  The  declaration  and the
Trust  Guarantee also  incorporate by reference the terms of the Trust Indenture
Act.

     The location of the principal  executive  office of ML Trust is c/o Merrill
Lynch & Co., Inc., World Financial  Center,  North Tower, 250 Vesey Street,  New
York, New York 10281, and its telephone number is (212) 449-1000.


<PAGE>


                    MERRILL LYNCH PREFERRED FUNDING VI, L.P.

   
     Merrill Lynch Preferred Funding VI, L.P. is a limited  partnership that was
formed under the Delaware  Revised Uniform Limited  Partnership Act, as amended,
on December 7, 1998 for the exclusive  purposes of purchasing debt securities of
ML&Co.  and  wholly-owned  subsidiaries  of ML&Co.  (the  "Affiliate  Investment
Instruments") and other permitted  investments,  with the proceeds from the sale
of partnership  preferred securities to ML Trust and a capital contribution from
ML&Co. in exchange for the general partner interest in ML Partnership. Under the
certificate  of limited  partnership,  as amended,  and the limited  partnership
agreement,  ML&Co.  is the sole  general  partner  of ML  Partnership.  Upon the
issuance of the partnership  preferred  securities,  which securities  represent
limited partner  interests in ML Partnership,  ML Trust will be the sole limited
partner  of  ML  Partnership.   Contemporaneously   with  the  issuance  of  the
partnership  preferred  securities,  ML&Co.  as general  partner will contribute
capital to ML  Partnership  in an amount  sufficient  to  establish  its initial
capital  account at an amount  equal to at least 15% of the total  capital of ML
Partnership.

     ML Partnership is managed by ML&Co.  as general  partner and exists for the
sole purpose of:
    

     o    issuing its partnership interests,

   
     o    investing  the  proceeds  from the sale of the  partnership  preferred
          securities in Affiliate Investment Instruments and other eligible debt
          securities, as described in this prospectus, and
    

     o    engaging in only those other  activities  necessary or incidental  for
          these purposes.

   
     To the extent that aggregate  payments to ML Partnership on its investments
exceed  distributions  accumulated  or payable with  respect to the  partnership
preferred securities,  ML Partnership may at times have excess funds which shall
be allocated to and may, in ML&Co.'s sole discretion, be distributed to ML&Co.

     For so long as the partnership  preferred  securities  remain  outstanding,
ML&Co. will be obligated under the limited partnership agreement:

     o    to remain the sole general  partner of ML Partnership  and to maintain
          100%  direct  ownership  of  the  general  partner's  interest  in  ML
          Partnership, which interest will at all times represent at least 1% of
          the total capital of ML Partnership,

     o    to cause ML  Partnership  to remain a limited  partnership  and not to
          voluntarily dissolve,  liquidate, wind-up or be terminated,  except as
          permitted by the limited partnership agreement, and
    

     o    to  use  its  commercially   reasonable  efforts  to  ensure  that  ML
          Partnership will not be,

          o    an investment  company for purposes of the Investment Company Act
               or

          o    an  association  or a publicly  traded  partnership  taxable as a
               corporation for United States Federal income tax purposes.

   
     ML&Co.  or the then general partner may transfer its obligations as general
partner to a wholly-owned direct or indirect subsidiary of ML&Co. provided that:

     o    the successor entity expressly accepts the transfer of the obligations
          as general partner, and
    

     o    before any  transfer,  ML&Co.  has  received an opinion of  nationally
          recognized independent counsel to ML Partnership  experienced in these
          matters to the effect that:

          (A)  ML Partnership will be treated as a partnership for United States
               Federal income tax purposes;

          (B)  any  transfer  would  not cause ML Trust to be  classified  as an
               association  taxable as a corporation  for United States  Federal
               income tax purposes;

          (C)  following any transfer,  ML&Co.  and the successor entity will be
               in  compliance  with the  Investment  Company Act  without  being
               subject to registration as an investment company; and

          (D)  any transfer will not adversely  affect the limited  liability of
               the holders of the partnership preferred securities.

   
     The  rights  of  the  holders  of  the  partnership  preferred  securities,
including  economic  rights,  rights to information  and voting rights,  are set
forth in the limited partnership  agreement and the Delaware Limited Partnership
Act. See "Description of the Partnership Preferred Securities".

     The limited  partnership  agreement  provides that the general partner will
have liability for the fees and expenses of ML Partnership, including any taxes,
duties,  assessments or  governmental  charges of whatever nature imposed by the
United States or any other domestic taxing authority upon ML Partnership,  other
than  withholding  taxes, and be responsible for all debts and obligations of ML
Partnership,  other than with respect to the partnership  preferred  securities.
Under Delaware law, assuming a limited partner in a Delaware limited partnership
such as ML Partnership,  i.e., a holder of the partnership preferred securities,
does not participate in the control of the business of the limited  partnership,
that limited  partner will not be personally  liable for the debts,  obligations
and liabilities of the limited partnership, whether arising in contract, tort or
otherwise,  solely  by  reason  of  being  a  limited  partner  of  the  limited
partnership,  subject to any obligation  such limited  partner may have to repay
any funds  that may have been  wrongfully  distributed  to it. ML  Partnership's
business and affairs will be conducted by ML&Co. as general partner.
    

     The location of the principal  executive  offices of ML  Partnership is c/o
Merrill  Lynch & Co.,  Inc.,  World  Financial  Center,  North Tower,  250 Vesey
Street, New York, New York 10281 and its telephone number is (212) 449-1000.


<PAGE>


   
                            DESCRIPTION OF THE TOPrS

     The  TOPrS  will  be  issued  under  the  terms  of  the  declaration.  The
declaration will be qualified as an indenture under the Trust Indenture Act. The
property  trustee,  The Chase  Manhattan Bank, will act as trustee for the TOPrS
under the  declaration  for purposes of  compliance  with the  provisions of the
Trust  Indenture  Act. The terms of the TOPrS will  include  those stated in the
declaration  and those made part of the  declaration by the Trust Indenture Act.
The following  summary of the material  terms and provisions of the TOPrS is not
complete and is subject to, and  qualified in its entirety by reference  to, the
declaration,  a copy  of  which  is  filed  as an  exhibit  to the  registration
statement of which this  prospectus  is a part,  the Delaware  Trust Act and the
Trust Indenture Act.
    

     The TOPrS will be issued in fully  registered  form  without  coupons.  The
TOPrS will not be issued in bearer form. See  "--Book-Entry  Only  Issuance--The
Depository Trust Company".

   
     The  declaration  authorizes the regular  trustees of ML Trust to issue the
Trust Securities,  which represent undivided  beneficial  ownership interests in
the assets of ML Trust.  Title to the partnership  preferred  securities will be
held by the  property  trustee  for the  benefit  of the  holders  of the  Trust
Securities.
    

     The declaration does not permit ML Trust to:

     o    acquire any assets other than the partnership preferred securities,

     o    issue any securities other than the Trust Securities, or

     o    incur any indebtedness.

   
The payment of distributions  out of money held by ML Trust, and payments out of
money held by ML Trust upon  redemption of the TOPrS or liquidation of ML Trust,
are guaranteed by ML&Co. to the extent described under "Description of the Trust
Guarantee".

     The Trust  Guarantee  will be held by The Chase  Manhattan  Bank, the trust
guarantee  trustee,  for the  benefit of the  holders  of the  TOPrS.  The Trust
Guarantee  does not cover payment of  distributions  when ML Trust does not have
sufficient  available  funds  to  pay  such  distributions.   In  any  event  of
non-payment,  holders of the TOPrS will have the remedies  described below under
"--Trust Enforcement Events".
    

DISTRIBUTIONS

     The distribution rate on the TOPrS will be fixed at a rate per annum of   %
of the  stated  liquidation  amount of $25 per TOPrS and will be paid if, as and
when ML Trust has funds available for  distribution.  Distributions  not paid on
the scheduled payment date will accumulate and compound  quarterly at a rate per
annum equal to %. The term  "distribution"  as used in this prospectus  includes
any  compounded  amounts  unless  otherwise  stated  or  the  context  otherwise
requires. The amount of distributions payable for any period will be computed on
the basis of a 360-day year of twelve 30-day months.

   
     Distributions  on the TOPrS will be cumulative,  will  accumulate  from the
date  of  initial   issuance   and will be payable  quarterly in arrears on each
               ,              , and               , commencing            , 199 
if, as and when  available  for  payment,  by the  property  trustee,  except as
otherwise  described  below. If distributions  are not paid when scheduled,  the
accumulated distributions shall be paid to the holders of record of the TOPrS as
they appear on the books and records of ML Trust on the record date with respect
to the payment date for the TOPrS which corresponds to the payment date fixed by
ML Partnership  with respect to the payment of cumulative  distributions  on the
partnership preferred securities.

     Distributions  on the TOPrS  will be made to the  extent  that ML Trust has
funds available for the payment of the  distributions  in the property  account.
Amounts  available to ML Trust for distribution to the holders of the TOPrS will
be limited to payments  received by ML Trust from ML Partnership with respect to
the partnership preferred securities or from ML&Co. on ML&Co.'s guarantee on the
TOPrS (the "Trust  Guarantee")  or its  guarantee on the  partnership  preferred
securities  (the  "Partnership  Guarantee")  as  described  in this  prospectus.
Distributions on the partnership  preferred  securities will be paid only if, as
and when declared in the sole discretion of ML&Co., as the general partner of ML
Partnership. Under the limited partnership agreement, ML&Co. is not obligated to
declare  distributions  on the  partnership  preferred  securities  at any time,
including upon or following a Partnership Enforcement Event. See "Description of
Partnership Preferred Securities--Partnership Enforcement Events".

     The assets of ML  Partnership  will consist  only of  Affiliate  Investment
Instruments, which initially will be the debentures issued by ML&Co. and another
wholly-owned  subsidiary of ML&Co.,  and other eligible debt securities.  To the
extent that the issuers and,  where  applicable,  ML&Co.,  as guarantor,  of the
securities in which ML Partnership  invests defer or fail to make any payment in
respect of the securities or, if applicable, the guarantees, ML Partnership will
not have sufficient  funds to pay and will not declare or pay  distributions  on
the partnership preferred securities. If ML Partnership does not declare and pay
distributions  on the  partnership  preferred  securities  out of funds  legally
available  for  distribution,  ML Trust will not have  sufficient  funds to make
distributions on the TOPrS, in which event the Trust Guarantee will not apply to
those  distributions  until ML Trust has sufficient funds available to pay those
distributions.     See    "Description    of    the    Partnership     Preferred
Securities--Distributions"   and  "Description  of  The  Trust  Guarantee".   In
addition,  ML  Partnership  may not  have  sufficient  funds to pay  current  or
liquidating distributions on the partnership preferred securities if:

     o    at any time that ML  Partnership  is  receiving  current  payments  in
          respect  of the  securities  held  by ML  Partnership,  including  the
          debentures,   ML&Co,  in  its  sole   discretion,   does  not  declare
          distributions   on  the  partnership   preferred   securities  and  ML
          Partnership  receives  insufficient  amounts  to  pay  the  additional
          compounded  distributions  that  will  accumulate  in  respect  of the
          partnership preferred securities,
    

     o    ML  Partnership  reinvests  the  proceeds  received  in respect of the
          debentures upon their  retirement or at their  maturities in Affiliate
          Investment  Instruments  that do not generate income in an amount that
          is sufficient to pay full  distributions in respect of the partnership
          preferred securities, or

   
     o    ML Partnership invests in debt securities of Investment Affiliates, as
          defined below,  that are not  guaranteed by ML&Co.  and that cannot be
          liquidated  by ML  Partnership  for an  amount  sufficient  to pay the
          distributions in full.

     Distributions  on the TOPrS will be payable to their holders as they appear
on the books and records of ML Trust on the relevant record dates, which will be
one Business Day, as defined below,  before the relevant  payment  dates.  These
distributions  will be paid through the  property  trustee who will hold amounts
received in respect of the  partnership  preferred  securities  in the  property
account for the benefit of the holders of the Trust  Securities.  Subject to any
applicable  laws and  regulations  and the provisions of the  declaration,  each
payment  will  be made  as  described  under  "--Book-Entry  Only  Issuance--The
Depository  Trust Company"  below.  In the event that the TOPrS do not remain in
book-entry  only form,  the  relevant  record dates shall be the 15th day of the
month  of the  relevant  payment  dates.  In the  event  that  any date on which
distributions  are  payable on the TOPrS is not a Business  Day,  payment of the
distribution  payable on that date will be made on the next succeeding day which
is a Business  Day,  without  any  interest  or other  payment in respect of the
distribution  subject to delay,  except that,  if that Business Day falls in the
next  succeeding  calendar  year,  the  relevant  payment  shall  be made on the
immediately  preceding Business Day, in each case with the same force and effect
as if made on that date. A "Business Day" shall mean any day other than a day on
which banking institutions in The City of New York are authorized or required by
law to close.
    

TRUST ENFORCEMENT EVENTS

     The occurrence, at any time, of:

     o    the  non-payment  of  distributions  on the TOPrS for six  consecutive
          quarterly distribution periods,

     o    a default by ML&Co.  in respect  of any of its  obligations  under the
          Trust Guarantee, or

   
     o    a  Partnership   Enforcement  Event  under  the  limited   partnership
          agreement,

will constitute an enforcement  event under the declaration  with respect to the
Trust  Securities  (a  "Trust  Enforcement  Event");  provided,  that  under the
declaration,  the holder of the common  securities will be deemed to have waived
any Trust  Enforcement  Event with  respect to the common  securities  until all
Trust  Enforcement  Events with respect to the TOPrS have been cured,  waived or
otherwise  eliminated.  Until any Trust  Enforcement  Event with  respect to the
TOPrS have been so cured, waived or otherwise  eliminated,  the property trustee
will be  deemed to be acting  solely on behalf of the  holders  of the TOPrS and
only the holders of the TOPrS will have the right to direct the property trustee
with  respect to certain  matters  under the  declaration  and, in the case of a
Partnership  Enforcement  Event,  the  special  representative  with  respect to
certain matters under the limited partnership agreement. See "Description of the
Partnership   Preferred   Securities--Partnership   Enforcement  Events"  for  a
description  of the events which will trigger the  occurrence  of a  Partnership
Enforcement Event.
    

     Upon the occurrence of a Trust Enforcement Event,

   
     o    the  property  trustee,  as the  holder of the  partnership  preferred
          securities,  shall  have  the  right  to  enforce  the  terms  of  the
          partnership  preferred  securities,  including the right to direct the
          special representative to enforce:
    

     o    ML  Partnership's  creditors'  rights and other rights with respect to
          the Affiliate  Investment  Instruments  and ML&Co.'s  guarantee of the
          Affiliate  Investment  Instruments (the "Investment  Guarantees",  and
          together with the Trust Guarantee and the Partnership  Guarantee,  the
          "Guarantees"),

     o    the rights of the  holders  of the  partnership  preferred  securities
          under the Partnership Guarantee, and

     o    the rights of the holders of the partnership  preferred  securities to
          receive distributions on the partnership preferred securities, only if
          and to the extent  declared  out of funds  legally  available  for the
          payment of distributions, and

   
     o    the trust guarantee  trustee shall have the right to enforce the terms
          of the Trust Guarantee, including the right to enforce the restriction
          on the payment of distributions by ML&Co. and its finance subsidiaries
          on its securities as described in the Trust Guarantee.

     If the property  trustee fails to enforce its rights under the  partnership
preferred  securities  after a holder of the  TOPrS has made a written  request,
that holder may directly institute a legal proceeding against ML Partnership and
the special  representative  to enforce the property  trustee's rights under the
partnership  preferred securities without first instituting any legal proceeding
against  the  property  trustee,  ML Trust or any  other  person or  entity.  In
addition, for so long as ML Trust holds any partnership preferred securities, if
the  special  representative  fails  to  enforce  its  rights  on  behalf  of ML
Partnership  under the Affiliate  Investment  Instruments  after a holder of the
TOPrS has made a written  request,  any holder  may on behalf of ML  Partnership
directly  institute a legal proceeding  against the Investment  Affiliates under
the  Affiliate  Investment  Instruments,  without  first  instituting  any legal
proceeding against the property trustee, ML Trust, the special representative or
ML  Partnership.  In any  event,  for so long as ML Trust is the  holder  of any
partnership preferred securities,  if a Trust Enforcement Event has occurred and
is  continuing  and such event is  attributable  to the failure of an Investment
Affiliate to make any  required  payment  when due on any  Affiliate  Investment
Instrument or the failure of ML&Co. to make any required payment when due on any
Investment Guarantee, then a holder of the TOPrS may on behalf of ML Partnership
directly institute a proceeding against the Investment Affiliate with respect to
any Affiliate  Investment  Instrument or against ML&Co.  with respect to any the
Investment Guarantee, in each case for enforcement of payment.

     Under no  circumstances,  however,  shall the special  representative  have
authority to cause ML&Co to declare  distributions on the partnership  preferred
securities.  As a result,  although  the special  representative  may be able to
enforce ML Partnership's creditors' rights to accelerate and receive payments in
respect of the Affiliate Investment  Instruments and the Investment  Guarantees,
subject to satisfying the reinvestment  criteria described under "Description of
the Partnership Preferred  Securities--Partnership  Investments", ML Partnership
would be entitled to reinvest any payments in  additional  Affiliate  Investment
Instruments and other eligible debt securities, rather than declaring and making
distributions on the partnership preferred securities.

     ML&Co.  and ML Trust are each  required to file  annually with the property
trustee an officer's  certificate as to its  compliance  with all conditions and
obligations under the declaration.
    

MANDATORY REDEMPTION

   
     At the  option  of  ML&Co.,  ML  Partnership  may  redeem  the  partnership
preferred  securities,  in whole or in part, at any time on or after           ,
or at any time in certain  circumstances  upon the  occurrence  of a Partnership
Special  Event.  Upon the  redemption of the  partnership  preferred  securities
either at the option of ML&Co.  or under to a  Partnership  Special  Event,  the
proceeds  from the  repayment  shall  simultaneously  be applied to redeem Trust
Securities  having an  aggregate  liquidation  amount  equal to the  partnership
preferred  securities so redeemed at an amount per Trust  Security  equal to $25
plus accumulated and unpaid distributions;  provided,  that holders of the Trust
Securities  shall be given not less than 30 nor more than 60 days  notice of any
redemption.  See "Description of the Partnership Preferred  Securities--General"
and "--Optional Redemption".
    

TRUST SPECIAL EVENT REDEMPTION OR DISTRIBUTION

   
     If, at any time,  a Trust Tax  Event or a Trust  Investment  Company  Event
(each as  defined  below,  and each,  a "Trust  Special  Event")  occurs  and is
continuing,  the  regular  trustees  shall,  unless  the  partnership  preferred
securities are redeemed in the limited circumstances  described below, within 90
days following the occurrence of such Trust Special Event elect to either:
    

          (1)  dissolve  ML Trust  upon not less  than 30 nor more  than 60 days
               notice with the result that,  after  satisfaction of creditors of
               ML  Trust,  if any,  partnership  preferred  securities  would be
               distributed  on a pro rata basis to the  holders of the TOPrS and
               the common securities in liquidation of the holders' interests in
               ML  Trust;  provided,  however,  that  if at the  time  there  is
               available to ML Trust the  opportunity  to eliminate,  within the
               90-day period, the Trust Special Event by taking some ministerial
               action, such as filing a form or making an election,  or pursuing
               some other similar  reasonable measure which in the sole judgment
               of ML&Co.  has or will  cause no adverse  effect on ML Trust,  ML
               Partnership,  ML&Co.  or the holders of the Trust  Securities and
               will involve no material  cost, ML Trust will pursue that measure
               in lieu of dissolution or

          (2)  cause the TOPrS to remain outstanding,  provided that in the case
               of this  clause  (2),  ML&Co.  shall  pay  any  and all  expenses
               incurred  by or  payable  by ML  Trust  attributable  to ML Trust
               Special Event.

   
Furthermore,  if in the case of the occurrence of a Trust Tax Event, the regular
trustees  have  received an opinion of  nationally  recognized  independent  tax
counsel  experienced  in these matters that there is more than an  insubstantial
risk that  interest  payable by one or more of the  Investment  Affiliates  with
respect to the debentures issued by any Investment Affiliate is not, or will not
be, deductible by any Investment  Affiliate for United States Federal income tax
purposes even if the partnership  preferred  securities were  distributed to the
holders of the Trust  Securities in liquidation of the holders'  interests in ML
Trust as  described  above,  then  ML&Co.  shall have the right,  within 90 days
following  the  occurrence  of the  Trust  Tax  Event,  to  elect  to  cause  ML
Partnership to redeem the partnership  preferred securities in whole, but not in
part,  for cash upon not less than 30 nor more than 60 days notice and  promptly
following any redemption,  the Trust  Securities will be redeemed by ML Trust at
the redemption price.

     "Trust Tax Event" means that ML&Co.  shall have  requested and received and
shall have delivered to the Regular Trustees an opinion of nationally recognized
independent  tax counsel  experienced  in these matters to the effect that there
has been:
    

     o    an amendment to, change in or announced  proposed  change in the laws,
          or any  regulations  under  those  laws of the  United  States  or any
          political subdivision or taxing authority of that jurisdiction,

     o    a judicial decision  interpreting,  applying, or clarifying these laws
          or regulations,

     o    an administrative  pronouncement or action that represents an official
          position,  including a clarification of an official  position,  of the
          governmental  authority or regulatory  body making the  administrative
          pronouncement or taking any action, or

     o    a threatened  challenge asserted in connection with an audit of ML&Co.
          or  any  of  its  subsidiaries,  ML  Partnership,  or ML  Trust,  or a
          threatened  challenge  asserted in writing  against any other taxpayer
          that has raised  capital  through the issuance of securities  that are
          substantially  similar to the debentures,  the  partnership  preferred
          securities,  or the  TOPrS,  which  amendment  or change is adopted or
          which proposed change, decision or pronouncement is announced or which
          action, clarification or challenge occurs on or after the date of this
          prospectus  (collectively a "Tax Action"), which Tax Action relates to
          any of the  items  described  in  (1)  through  (3)  below,  and  that
          following  the  occurrence  of any Tax  Action  there is more  than an
          insubstantial risk that:

          (1)  ML Trust is, or will be,  subject to United States federal income
               tax with respect to income accrued or received on the partnership
               preferred securities,

          (2)  ML Trust is, or will be, subject to more than a minimal amount of
               other taxes, duties or other governmental charges or

   
          (3)  interest  payable by an Investment  Affiliate with respect to the
               Affiliate   Investment   Instrument   issued  by  the  Investment
               Affiliate is not, or will not be,  deductible  by the  Investment
               Affiliate for United States Federal income tax purposes.
    

     Recently,  the Internal  Revenue Service asserted that the interest payable
on a security issued in circumstances with certain  similarities to the issuance
of the debentures issued by the Investment  Affiliates to ML Partnership was not
deductible for United States  Federal income tax purposes.  The taxpayer in that
case has filed a petition in the United States Tax Court  challenging  the IRS's
position on this matter.  If this matter were to be litigated  and the Tax Court
were to sustain the IRS's position on this matter,  the judicial  decision could
constitute a Trust Tax Event,  which could result in an early  redemption of the
TOPrS.

   
     "Trust Investment Company Event" means that ML&Co. shall have requested and
received  and shall  have  delivered  to the  regular  trustees  an  opinion  of
nationally recognized  independent legal counsel experienced in these matters to
the  effect  that as a result  of the  occurrence  on or after  the date of this
prospectus  of a change in law or regulation  or a change in  interpretation  or
application of law or regulation by any legislative  body,  court,  governmental
agency or regulatory  authority (a "Change in Investment  Company Act Law"),  ML
Trust is or will be  considered  an  investment  company which is required to be
registered under the Investment Company Act.
    

     If the partnership  preferred  securities are distributed to the holders of
the TOPrS,  ML&Co. will use its best efforts to cause the partnership  preferred
securities to be listed on the NYSE or on any other national securities exchange
or similar organization as the TOPrS are then listed or quoted.

     On the date fixed for any distribution of partnership preferred securities,
upon dissolution of ML Trust,

     o    the Trust Securities will no longer be deemed to be outstanding, and

     o    certificates  representing  the  Trust  Securities  will be  deemed to
          represent the partnership  preferred  securities  having a liquidation
          preference  equal  to the  stated  liquidation  amount  of  the  Trust
          Securities until the certificates are presented to ML&Co. or its agent
          for transfer or reissuance.

     There  can be no  assurance  as to the  market  price  for the  partnership
preferred  securities  which  may be  distributed  in  exchange  for  TOPrS if a
dissolution  and  liquidation  of ML  Trust  were  to  occur.  Accordingly,  the
partnership  preferred  securities which an investor may subsequently receive on
dissolution  and liquidation of ML Trust may trade at a discount to the price of
the TOPrS exchanged.

REDEMPTION PROCEDURES

     ML Trust may not redeem fewer than all of the outstanding  TOPrS unless all
accumulated  and  unpaid  distributions  have  been  paid on all  TOPrS  for all
quarterly distribution periods terminating on or before the date of redemption.

   
     If ML Trust  gives a notice of  redemption  in respect of the TOPrS,  which
notice will be  irrevocable,  and if ML&Co.  has paid to the property  trustee a
sufficient  amount of cash in  connection  with the  related  redemption  of the
partnership  preferred  securities,  then, by 12:00 noon, New York City time, on
the redemption date, ML Trust will irrevocably deposit with DTC funds sufficient
to pay the amount payable on redemption of all book-entry  certificates and will
give DTC irrevocable  instructions and authority to pay the redemption amount to
holders of the TOPrS.  See  "--Book-Entry  Only  Issuance--The  Depository Trust
Company".  If notice of redemption shall have been given and funds are deposited
as required,  then upon the date of deposit,  all rights of holders of any TOPrS
so called for  redemption  will cease,  except the right of the holders of those
TOPrS to receive the redemption price, but without  interest.  In the event that
any date fixed for  redemption  of the TOPrS is not a Business Day, then payment
of the amount payable on that date will be made on the next succeeding day which
is a Business  Day,  without  any  interest  or other  payment in respect of the
amount payable subject to delay,  except that, if that Business Day falls in the
next  calendar  year,  the  payment  will be made on the  immediately  preceding
Business  Day. In the event that payment of the  redemption  price in respect of
the TOPrS is  improperly  withheld or refused and not paid either by ML Trust or
by ML&Co.  under the Trust Guarantee  described under  "Description of the Trust
Guarantee",  distributions  on the TOPrS will  continue to  accumulate  from the
original redemption date to the date of payment.
    

     In the  event  that  fewer  than  all of the  outstanding  TOPrS  are to be
redeemed,  the TOPrS will be redeemed in accordance  with the procedures of DTC.
See "--Book-Entry  Only  Issuance--The  Depository Trust Company".  In the event
that the TOPrS do not remain in  book-entry  only form and fewer than all of the
outstanding TOPrS are to be redeemed,  the TOPrS shall be redeemed on a pro rata
basis or pursuant to the rules of any securities exchange on which the TOPrS are
listed.

     Subject to the foregoing and applicable law, including, without limitation,
United States Federal  securities  laws,  ML&Co. or its  subsidiaries may at any
time and from time to time  purchase  outstanding  TOPrS by tender,  in the open
market or by private agreement.

SUBORDINATION OF THE COMMON SECURITIES

     Payment of amounts upon  liquidation of the Trust  Securities shall be made
pro rata  based on the  liquidation  amount of the Trust  Securities;  provided,
however, that upon:

   
     o    the  occurrence  of an event of  default by an  Investment  Affiliate,
          including ML&Co., under any Affiliate Investment Instrument, or
    

     o    default  by  ML&Co.  on any of its  obligations  under  any  guarantee
          described  in this  prospectus,  the  holders of the TOPrS will have a
          preference  over the holders of the common  securities with respect to
          payments upon liquidation of ML Trust.

   
     In the case of any  Trust  Enforcement  Event,  the  holder  of the  common
securities will be deemed to have waived the Trust  Enforcement  Event until all
Trust  Enforcement  Events with respect to the TOPrS have been cured,  waived or
otherwise  eliminated.  Until all Trust  Enforcement  Events with respect to the
TOPrS have been so cured, waived or otherwise  eliminated,  the property trustee
shall act solely on behalf of the  holders of the TOPrS and not on behalf of the
holder of the common securities, and only the holders of the TOPrS will have the
right to direct the property trustee to act on their behalf.
    

LIQUIDATION DISTRIBUTION UPON DISSOLUTION

   
     In the event of any  voluntary  or  involuntary  liquidation,  dissolution,
winding-up or termination of ML Trust, the holders of the TOPrS will be entitled
to receive out of the assets of ML Trust,  after  satisfaction of liabilities to
creditors,  distributions  in cash or other  immediately  available  funds in an
amount equal to the aggregate of the stated  liquidation amount of $25 per TOPrS
plus  accumulated and unpaid  distributions to the date of payment,  unless,  in
connection with ML Trust's  liquidation,  partnership  preferred securities have
been distributed on a pro rata basis to the holders of the Trust Securities.

     If, upon ML Trust's liquidation,  the liquidation  distribution can be paid
only in part because ML Trust has  insufficient  assets available to pay in full
the aggregate liquidation distribution,  then the amounts payable directly by ML
Trust on the TOPrS shall be paid on a pro rata basis.  The holders of the common
securities will be entitled to receive  distributions  upon liquidation pro rata
with the  holders of the TOPrS,  except in the limited  circumstances  described
above under "--Subordination of the Common Securities".

     Under to the declaration, ML Trust shall terminate:
    

     (1)  upon the bankruptcy of ML&Co.,

     (2)  upon the filing of a certificate of dissolution or the equivalent with
          respect to ML&Co.,  the filing of a certificate of  cancellation  with
          respect to ML Trust after  having  obtained  the consent of at least a
          majority  in  liquidation  amount  of  the  Trust  Securities,  voting
          together as a single class, to file such  certificate of cancellation,
          or the  revocation of the charter of ML&Co.  and the  expiration of 90
          days after the date of revocation without reinstatement,

     (3)  upon the distribution of all of the partnership  preferred  securities
          upon the occurrence of a Trust Special Event,

     (4)  upon the entry of a decree of a judicial  dissolution of ML&Co.  or ML
          Trust, or

     (5)  upon the redemption of all the Trust Securities.

VOTING RIGHTS

     Except as described in this  prospectus,  under the Delaware Trust Act, the
Trust Indenture Act and under  "Description  of The Trust  Guarantee--Amendments
and  Assignment",  and as  otherwise  required by law and the  declaration,  the
holders of the TOPrS will have no voting rights.

   
     Subject to the requirement of the property trustee  obtaining a tax opinion
as set forth in the last sentence of this  paragraph,  the holders of a majority
in liquidation amount of the TOPrS have the right to direct the time, method and
place of  conducting  any  proceeding  for any remedy  available to the property
trustee,  or  direct  the  exercise  of any  trust or power  conferred  upon the
property  trustee  under the  declaration,  including  the  right to direct  the
property trustee, as holder of the partnership preferred securities, to:

     o    exercise  the remedies  available to it under the limited  partnership
          agreement  as  a  holder  of  the  partnership  preferred  securities,
          including the right to direct the special  representative  to exercise
          its rights in the manner  described  above under "--Trust  Enforcement
          Events", and

     o    consent to any amendment,  modification, or termination of the limited
          partnership  agreement or the partnership  preferred  securities where
          consent is required; provided, however, that where a consent or action
          under the limited  partnership  agreement would require the consent or
          act  of  the  holders  of  more  than  a  majority  of  the  aggregate
          liquidation  preference of partnership  preferred securities affected,
          only the holders of the percentage of the aggregate stated liquidation
          amount  of  the  Trust  Securities  which  is at  least  equal  to the
          percentage required under the limited partnership agreement may direct
          the  property  trustee to give  consent or take action on behalf of ML
          Trust.    See    "Description    of    the    Partnership    Preferred
          Securities--Voting Rights".

     The property trustee shall notify all holders of the TOPrS of any notice of
any Partnership  Enforcement Event received from ML&Co., as general partner with
respect to the  partnership  preferred  securities and the Affiliate  Investment
Instruments.  The notice shall state that the Partnership Enforcement Event also
constitutes  a Trust  Enforcement  Event.  Except with respect to directing  the
time,  method,  and place of  conducting a proceeding  for a remedy as described
above,  the property  trustee  shall be under no  obligation  to take any of the
actions  described in  immediately  preceding  clauses above unless the property
trustee has obtained an opinion of independent tax counsel to the effect that as
a result of that action,  ML Trust will not fail to be  classified  as a grantor
trust for United States  Federal  income tax purposes and that after that action
each  holder  of Trust  Securities  will  continue  to be  treated  as owning an
undivided beneficial ownership interest in the partnership preferred securities.

     A waiver of a Partnership Enforcement Event with respect to the partnership
preferred  securities  held by the property  trustee will constitute a waiver of
the corresponding Trust Enforcement Event.

     Any required  approval or direction of holders of the TOPrS may be given at
a  separate  meeting of holders of the TOPrS  convened  for that  purpose,  at a
meeting  of all of the  holders  of Trust  Securities  or  pursuant  to  written
consent.  The  regular  trustees  will  cause a notice of any  meeting  at which
holders of the TOPrS are entitled to vote, or of any matter upon which action by
written  consent of the  holders is to be taken,  to be mailed to each holder of
record of the TOPrS.  Each notice will  include a  statement  setting  forth the
following information:
    

     (1)  the  date of the  meeting  or the date by which  any  action  is to be
          taken;

     (2)  a description of any  resolution  proposed for adoption at the meeting
          on which the holders are  entitled to vote or of the matter upon which
          written consent is sought; and

     (3)  instructions for the delivery of proxies or consents.

No vote or consent of the holders of the TOPrS will be required  for ML Trust to
redeem and cancel the TOPrS or distribute  partnership  preferred  securities in
accordance with the declaration.

     Notwithstanding  that  holders of the TOPrS are entitled to vote or consent
under any of the circumstances described above, any of the Trust Securities that
are  beneficially  owned  at that  time by  ML&Co.  or any  entity  directly  or
indirectly  controlled  by, or under  direct or indirect  common  control  with,
ML&Co.,  except for TOPrS  purchased or acquired by ML&Co.  or its affiliates in
connection  with  transactions  effected by or for the account of  customers  of
ML&Co.  or any of its  subsidiaries  or in connection  with the  distribution or
trading of the TOPrS,  shall not be entitled  to vote or consent and shall,  for
purposes of any vote or consent,  be treated as if the Trust Securities were not
outstanding;  provided,  however, that persons, other than affiliates of ML&Co.,
to whom ML&Co.  or any of its  subsidiaries  have  pledged the TOPrS may vote or
consent with respect to the pledged TOPrS pursuant to the terms of the pledge.

     The  procedures  by which  holders of the TOPrS  represented  by the global
certificates   may  exercise  their  voting  rights  are  described  below.  See
"--Book-Entry Only Issuance--The Depository Trust Company".

   
     Holders of the TOPrS  will have no rights to appoint or remove the  regular
trustees,  who may be appointed,  removed or replaced  solely by ML&Co.,  as the
holder of all of the common securities.
    

MERGER, CONSOLIDATION OR AMALGAMATION OF ML TRUST

   
     ML  Trust  may not  consolidate,  amalgamate,  merge  with or  into,  or be
replaced  by,  or  convey,   transfer  or  lease  its   properties   and  assets
substantially  as an entirety to, any  corporation  or other  entity,  except as
described  below.  ML Trust may,  with the  consent of a majority of the regular
trustees  and without the  consent of the holders of the Trust  Securities,  the
property trustee or the Delaware trustee consolidate,  amalgamate, merge with or
into, or be replaced by a trust organized as such under the laws of any State of
the United States; provided, that:
    

     (1)  if ML Trust is not the surviving entity, the successor entity either:

          o    expressly  assumes all of the  obligations  of ML Trust under the
               Trust Securities, or

   
          o    substitutes for the TOPrS other securities  having  substantially
               the same terms as the TOPrS, so long as the successor  securities
               rank  the same as the  Trust  Securities  rank  with  respect  to
               distributions, assets and payments,

     (2)  ML&Co.  expressly  acknowledges  a  trustee  of the  successor  entity
          possessing  the same powers and duties as the property  trustee as the
          holder of the partnership preferred securities,

     (3)  the TOPrS or any  successor  securities  are listed,  or any successor
          securities  will be  listed  upon  notification  of  issuance,  on any
          national securities exchange or with another organization on which the
          TOPrS are then listed or quoted,

     (4)  any merger, consolidation,  amalgamation or replacement does not cause
          the TOPrS, including any successor securities, to be downgraded by any
          nationally recognized statistical rating organization,

     (5)  any  merger,  consolidation,  amalgamation  or  replacement  does  not
          adversely affect the rights, preferences and privileges of the holders
          of the TOPrS,  including  any  successor  securities,  in any material
          respect,
    

     (6)  the successor entity has a purpose substantially  identical to that of
          ML Trust,

   
     (7)  ML&Co.  guarantees the  obligations of the successor  entity under the
          successor  securities  to the same  extent  as  provided  by the Trust
          Guarantee and
    

     (8)  before any merger, consolidation,  amalgamation or replacement, ML&Co.
          has received an opinion of a nationally recognized independent counsel
          to ML Trust experienced in these matters to the effect that:

   
          o    any merger,  consolidation,  amalgamation or replacement will not
               adversely  affect the rights,  preferences  and privileges of the
               holders of the TOPrS, including any successor securities,  in any
               material respect,  other than with respect to any dilution of the
               holders' interest in the new entity,
    

          o    following any merger, consolidation, amalgamation or replacement,
               neither ML Trust nor the  successor  entity  will be  required to
               register as an investment  company under the  Investment  Company
               Act,

          o    following any merger, consolidation, amalgamation or replacement,
               ML Trust,  or any successor  trust,  will not be classified as an
               association  or  a  publicly  traded  partnership  taxable  as  a
               corporation for United States Federal income tax purposes, and

          o    following any merger, consolidation, amalgamation or replacement,
               ML  Partnership  will not be  classified as an  association  or a
               publicly traded  partnership  taxable as a corporation for United
               States Federal income tax purposes.

Notwithstanding  the foregoing,  ML Trust shall not,  except with the consent of
holders of 100% in  liquidation  amount of the TOPrS,  consolidate,  amalgamate,
merge  with or into,  or be  replaced  by any other  entity or permit  any other
entity to  consolidate,  amalgamate,  merge with or into,  or replace it, if any
consolidation,  amalgamation,  merger or replacement would cause ML Trust or the
successor  entity  to be  classified  as an  association  or a  publicly  traded
partnership  taxable as a  corporation  for  United  States  Federal  income tax
purposes.

MODIFICATION OF THE DECLARATION

   
     The  declaration  may be modified  and amended if approved by a majority of
the regular trustees, and in the circumstances described in the declaration, the
property trustee and the Delaware trustee.  However,  if any proposed  amendment
provides for, or the regular trustees otherwise propose to effect,
    

     (1)  any action  that would  adversely  affect the powers,  preferences  or
          special rights of the Trust Securities, whether by way of amendment to
          the declaration or otherwise, or

     (2)  the  dissolution,  winding-up  or  termination  of ML Trust other than
          under the terms of the declaration,

then, in each case,  the holders of the Trust  Securities  voting  together as a
single  class will be entitled  to vote on the  amendment  or  proposal  and the
amendment  or proposal  shall not be  effective  except with the  approval of at
least a  majority  in  liquidation  amount  of the  Trust  Securities  affected;
provided,  further that if any  amendment or proposal  referred to in clause (2)
above would adversely affect only the TOPrS or the common securities,  then only
the affected class will be entitled to vote on the amendment or proposal and the
amendment  or proposal  shall not be  effective  except  with the  approval of a
majority in liquidation amount of that class of Trust Securities.

     The  declaration  may be amended  without the consent of the holders of the
Trust Securities to:

     o    cure any ambiguity,

     o    correct or  supplement  any provision in the  declaration  that may be
          defective or inconsistent with any other provision of the declaration,

     o    add to the restrictions or obligations of the sponsor,

     o    conform  to any  change  in the  Investment  Company  Act,  the  Trust
          Indenture Act or the rules or regulations under either law and

     o    modify,  eliminate and add to any provision of the  declaration to the
          extent as may be necessary or desirable;

provided that no amendment  shall have a material  adverse effect on the rights,
preferences or privileges of the holders of the Trust Securities.

     Notwithstanding the foregoing,  no amendment or modification may be made to
the declaration if the amendment or modification would

     o    cause ML Trust to fail to be  classified as a grantor trust for United
          States Federal income tax purposes,

     o    cause ML  Partnership  to be classified as an  association or publicly
          traded partnership taxable as a corporation for those purposes,

   
     o    reduce or  otherwise  adversely  affect  the  powers  of the  property
          trustee, or
    

     o    cause ML Trust or ML  Partnership  to be deemed an investment  company
          which is required to be registered under the Investment Company Act.

BOOK-ENTRY ONLY ISSUANCE--THE DEPOSITORY TRUST COMPANY

     DESCRIPTION OF THE GLOBAL CERTIFICATES

   
     DTC will act as  securities  depository  for the TOPrS  and,  to the extent
distributed to the holders of the TOPrS, the partnership  preferred  securities.
The TOPrS will be issued only as fully-registered  securities  registered in the
name  of  Cede & Co.  (DTC's  nominee).  One  or  more  fully-registered  global
certificates,  representing the total aggregate number of TOPrS,  will be issued
and will be deposited with DTC.
    

     DTC PROCEDURES

     DTC is a limited-purpose trust company organized under the New York Banking
Law, a "banking  organization" within the meaning of the New York Banking Law, a
member of the  Federal  Reserve  System,  a  "clearing  corporation"  within the
meaning  of the New  York  Uniform  Commercial  Code,  and a  "clearing  agency"
registered  pursuant to the provisions of Section 17A of the Securities Exchange
Act of 1934, as amended. DTC holds securities that its participants deposit with
DTC. DTC also  facilitates  the  settlement  among  participants  of  securities
transactions,  such as transfers and pledges,  in deposited  securities  through
electronic computerized  book-entry changes in participants'  accounts,  thereby
eliminating  the  need  for  physical   movement  of  securities   certificates.
participants  in DTC  include  securities  brokers  and  dealers,  banks,  trust
companies,  clearing corporations and certain other organizations.  DTC is owned
by a number of its  participants  and by the NYSE, the American Stock  Exchange,
Inc., and the National Association of Securities Dealers, Inc. Access to the DTC
system is also available to others such as securities brokers and dealers, banks
and trust companies that clear through or maintain a custodial relationship with
a participant,  either directly or indirectly.  The rules  applicable to DTC and
its participants are on file with the SEC.

     Purchases  of the TOPrS  within the DTC  system  must be made by or through
participants,  which will receive a credit for the TOPrS on DTC's  records.  The
ownership  interest  of each  beneficial  owner  of the  TOPrS  is in turn to be
recorded on the participants'  and indirect  participants'  records.  Beneficial
owners will not receive written  confirmation  from DTC of their purchases,  but
beneficial  owners are  expected  to  receive  written  confirmations  providing
details of the transactions,  as well as periodic  statements of their holdings,
from the  participants  or indirect  participants  through which the  beneficial
owners purchased TOPrS.  Transfers of ownership interests in the TOPrS are to be
accomplished  by  entries  made  on  the  books  of  participants  and  indirect
participants  acting on behalf of beneficial owners.  Beneficial owners will not
receive certificates representing their ownership interests in the TOPrS, except
in the event that use of the book-entry system for the TOPrS is discontinued.

     DTC has no knowledge of the actual  beneficial  owners of the TOPrS;  DTC's
records  reflect only the  identity of the  participants  to whose  accounts the
TOPrS  are  credited,  which  may or  may  not be  the  beneficial  owners.  The
participants  and  indirect  participants  will remain  responsible  for keeping
account of their holdings on behalf of their customers.

     So long as DTC,  or its  nominee,  is the  registered  owner or holder of a
global certificate,  DTC or such nominee, as the case may be, will be considered
the sole owner or holder of the TOPrS being  represented  for all purposes under
the declaration  and the TOPrS.  No beneficial  owner of an interest in a global
certificate  will be able to transfer  that interest  except in accordance  with
DTC's  applicable  procedures,  in  addition  to those  provided  for  under the
declaration.

     DTC has advised ML&Co.  that it will take any action  permitted to be taken
by a holder of the TOPrS,  including the  presentation of the TOPrS for exchange
as described below,  only at the direction of one or more  participants to whose
account the DTC  interests in the global  certificates  are credited and only in
respect of such portion of the aggregate  liquidation  amount of the TOPrS as to
which the participant or participants has or have given the direction.  Also, if
there is a Trust Enforcement Event under the TOPrS, DTC will exchange the global
certificates  for  certificated  securities,  which  it will  distribute  to its
participants in accordance with its customary procedures.

     Conveyance of notices and other  communications by DTC to participants,  by
participants  to  indirect  participants,   and  by  participants  and  indirect
participants to beneficial  owners will be governed by arrangements  among them,
subject to any  statutory or  regulatory  requirements  as may be in effect from
time to time.

     Redemption  notices in respect of the TOPrS held in book-entry form will be
sent to Cede & Co. If less than all of the  TOPrS are being  redeemed,  DTC will
determine  the amount of the  interest  of each  participant  to be  redeemed in
accordance with its procedures.

     Although voting with respect to the TOPrS is limited,  in those cases where
a vote is required,  neither DTC nor Cede & Co. will itself consent or vote with
respect  to the  TOPrS.  Under its usual  procedures,  DTC would mail an omnibus
proxy to ML Trust as soon as possible  after the record date.  The omnibus proxy
assigns Cede & Co.'s consenting or voting rights to those  participants to whose
accounts  the TOPrS are  allocated  on the record date  identified  in a listing
attached to the omnibus proxy.

     Distributions  on the TOPrS held in book-entry  form will be made to DTC in
immediately available funds. DTC's practice is to credit participants'  accounts
on the relevant payment date in accordance with their respective  holdings shown
on DTC's  records  unless  DTC has reason to  believe  that it will not  receive
payments on the payment date. Payments by participants and indirect participants
to  beneficial  owners will be governed by standing  instructions  and customary
practices  and  will be the  responsibility  of the  participants  and  indirect
participants  and not of DTC, ML Trust or ML&Co.,  subject to any  statutory  or
regulatory  requirements  as may be in effect from time to time.  Payment of any
distributions to DTC is the  responsibility  of ML Trust,  disbursement of those
payments to participants is the responsibility of DTC, and disbursement of those
payments to the beneficial  owners is the  responsibility  of  participants  and
indirect participants.

     Except  as  described,  a  beneficial  owner  of an  interest  in a  global
certificate  will not be  entitled  to receive  physical  delivery of the TOPrS.
Accordingly,  each  beneficial  owner  must  rely  on the  procedures  of DTC to
exercise any rights under the TOPrS.

   
     Although DTC has agreed to the foregoing  procedures in order to facilitate
transfers of interests in the global certificates among participants of DTC, DTC
is under no  obligation to perform or continue to perform such  procedures,  and
such  procedures may be discontinued  at any time.  Neither ML&Co.  nor ML Trust
will have any  responsibility  for the performance by DTC or its participants or
indirect  participants  under the rules and  procedures  governing  DTC. DTC may
discontinue  providing its services as securities depository with respect to the
TOPrS at any time by giving notice to ML Trust.  Under these  circumstances,  in
the event that a successor  securities  depository  is not  obtained,  the TOPrS
certificates  are required to be printed and delivered to the property  trustee.
Additionally,  ML Trust,  with the consent of ML&Co.,  may decide to discontinue
use of  the  system  of  book-entry  transfers  through  DTC  or  any  successor
depository.  In that  event,  certificates  for the TOPrS  will be  printed  and
delivered to the property trustee.  In each of the above  circumstances,  ML&Co.
will appoint a paying agent with respect to the TOPrS.
    

     The  laws  of  some  jurisdictions   require  that  certain  purchasers  of
securities take physical  delivery of securities in definitive  form. These laws
may impair the ability to transfer  beneficial  interests in the global TOPrS as
represented by a global certificate.

   
     The  information  in this section  concerning DTC and DTC's system has been
obtained from sources that ML&Co.  believes to be reliable,  but ML&Co. takes no
responsibility for the accuracy of the information.
    

PAYMENT

   
     Payments  in respect of the TOPrS  represented  by the global  certificates
shall be made to DTC,  which shall  credit the  relevant  accounts at DTC on the
scheduled  payment  dates or, in the case of  certificated  securities,  if any,
payments shall be made by check mailed to the address of the holder  entitled to
receive the payment as the holder's  address shall appear on the  register.  The
paying  agent shall be  permitted to resign as paying agent upon 30 days written
notice to the regular trustees. In the event that The Chase Manhattan Bank shall
no longer be the paying agent, the regular trustees shall appoint a successor to
act as paying Agent which shall be a bank or trust company.
    

REGISTRAR, TRANSFER AGENT, AND PAYING AGENT

   
     The property trustee will act as registrar, transfer Agent and paying agent
for the TOPrS.
    

     Registration  of transfers of the TOPrS will be effected  without charge by
or on behalf of ML Trust,  but upon payment and with the giving of any indemnity
as ML Trust or ML&Co.  may  require,  in respect of any tax or other  government
charges which may be imposed in relation to it.

     ML Trust will not be required to  register  or cause to be  registered  the
transfer of the TOPrS after the TOPrS have been called for redemption.

INFORMATION CONCERNING THE PROPERTY TRUSTEE

   
     The property  trustee,  before the  occurrence of a default with respect to
the Trust Securities,  undertakes to perform only the duties as are specifically
set forth in the declaration and, after default,  shall exercise the same degree
of care as a prudent  individual would exercise in the conduct of his or her own
affairs.  Subject  to  these  provisions,  the  property  trustee  is  under  no
obligation to exercise any of the powers vested in it by the  declaration at the
request of any holder of the TOPrS,  unless offered reasonable  indemnity by the
holder against the costs,  expenses and  liabilities  which might be incurred in
connection with the exercise of any powers. The holders of the TOPrS will not be
required to offer any indemnity in the event the holders,  by  exercising  their
voting rights,  direct the property trustee to take any action following a Trust
Enforcement Event.
    

GOVERNING LAW

     The  declaration  and the TOPrS  will be  governed  by,  and  construed  in
accordance with, the internal laws of the State of Delaware.

MISCELLANEOUS

   
     The regular  trustees are authorized and directed to conduct the affairs of
and to  operate ML Trust in such a way that ML Trust will not be deemed to be an
investment company required to be registered under the Investment Company Act or
characterized as other than a grantor trust for United States Federal income tax
purposes.  In this  connection,  the regular trustees are authorized to take any
action,  not  inconsistent  with applicable law, the certificate of trust or the
declaration  that the  regular  trustees  determine  in their  discretion  to be
necessary  or  desirable  for those  purposes  as long as such  action  does not
adversely affect the interests of the holders of the TOPrS.
    

     Holders of the TOPrS have no preemptive rights.

                       DESCRIPTION OF THE TRUST GUARANTEE

   
     Set forth below is a summary of material  information  concerning the Trust
Guarantee which will be executed and delivered by ML&Co.  for the benefit of the
holders  from time to time of the  TOPrS.  The  summary is not  complete  and is
subject in all respects to the  provisions  of, and is qualified in its entirety
by  reference  to,  the Trust  Guarantee,  which is filed as an  exhibit  to the
registration  statement of which this  prospectus is a part. The Trust Guarantee
incorporates  by  reference  the terms of, and will be qualified as an indenture
under, the Trust Indenture Act. The Chase Manhattan Bank, as the trust guarantee
trustee,  will hold the Trust  Guarantee  for the  benefit of the holders of the
TOPrS and will act as indenture  trustee for the purposes of compliance with the
Trust Indenture Act.
    

     Under the Trust Guarantee, ML&Co. will irrevocably agree, on a subordinated
basis and to the extent set forth in the Trust Guarantee,  to pay in full to the
holders of the TOPrS,  except to the extent  paid by ML Trust,  as and when due,
regardless of any defense,  right of set off or counterclaim  which ML Trust may
have or assert, the following payments (the "Trust Guarantee Payments"), without
duplication:

     o    any accumulated and unpaid distributions on the TOPrS to the extent ML
          Trust has funds available for distribution,

   
     o    the  redemption  price with respect to any TOPrS called for redemption
          by ML Trust,  to the extent ML Trust has funds  available for payment,
          and

    

     o    upon a voluntary or involuntary dissolution, winding-up or termination
          of ML  Trust,  other  than in  connection  with  the  distribution  of
          partnership  preferred  securities  to the holders of the TOPrS or the
          redemption of all of the TOPrS, the lesser of:

          (1)  the aggregate of the  liquidation  amount and all accumulated and
               unpaid distributions on the TOPrS and

          (2)  the  amount  of  assets  of  ML  Trust  remaining  available  for
               distribution  to holders of the TOPrS upon the  liquidation of ML
               Trust.

ML&Co.'s obligation to make a Trust Guarantee Payment may be satisfied by direct
payment  of the  required  amounts by ML&Co.  to the  holders of the TOPrS or by
causing ML Trust to pay these amounts to holders.

   
     The Trust  Guarantee  will be a  guarantee  on a  subordinated  basis  with
respect to the TOPrS from the time of  issuance of the TOPrS but will only apply
to any payment of distributions or the redemption price, or to payments upon the
dissolution, winding-up or termination of ML Trust, to the extent ML Trust shall
have funds available.  If ML Partnership  fails to declare  distributions on the
partnership  preferred  securities,  ML Trust would lack available funds for the
payment of  distributions  or  amounts  payable  on  redemption  of the TOPrS or
otherwise, and in such event holders of the TOPrS would not be able to rely upon
the Trust Guarantee for payment of these amounts.  Instead, holders of the TOPrS
will  have  the  remedies  described  under  "Description  of  the  TOPrS--Trust
Enforcement  Events",  including the right to direct the trust guarantee trustee
to enforce the restriction of payments by ML&Co. and its finance subsidiaries on
its capital stock. See "-- Obligations of ML&Co." below.

     The  Guarantees,  when taken together with the debentures  issued by ML&Co.
and  ML&Co.'s  obligations  to pay all fees  and  expenses  of ML  Trust  and ML
Partnership,  constitute a guarantee to the extent set forth in this  prospectus
by ML&Co. of the  distribution,  redemption and liquidation  payments payable to
the  holders of the TOPrS.  The  Guarantees  do not apply,  however,  to current
distributions  by ML  Partnership  unless  and  until  these  distributions  are
declared by ML  Partnership  out of funds  legally  available  for payment or to
liquidating  distributions  unless there are assets  available for payment in ML
Partnership,  each as more fully  described  under  "Risk  Factors--Insufficient
Income or Assets Available to Partnership".
    

OBLIGATIONS OF ML&CO.

     Under the Trust Guarantee, ML&Co. will agree that, if

     o    for any distribution  period, full distributions on a cumulative basis
          on any TOPrS have not been paid,

   
     o    an event of  default  by any  Investment  Affiliate  in respect of any
          Affiliate Investment Instrument has occurred and is continuing, or
    

     o    it is in default of its  obligations  under the Trust  Guarantee,  the
          Partnership Guarantee or any Investment Guarantee,

then, during that period:

     o    it may not  declare  or pay  dividends  on,  make  distributions  with
          respect  to, or redeem,  purchase or  acquire,  or make a  liquidation
          payment with respect to, any of its capital stock or comparable equity
          interest, except for:

          (1)  dividends or distributions in shares of, or options,  warrants or
               rights to subscribe for or purchase shares of, its capital stock,
               and  conversions  or  exchanges of common stock of one class into
               common stock of another class,

          (2)  redemptions  or  purchases  of any rights  pursuant to the rights
               agreement  dated as of December 2, 1997  between  ML&Co.  and The
               Chase Manhattan Bank (the "Rights Agreement") and the issuance of
               preferred stock under those rights and

          (3)  purchases  or   acquisitions  by  ML&Co.  or  its  affiliates  in
               connection  with  transactions  effected by or for the account of
               customers of ML&Co.  or any of its  subsidiaries or in connection
               with  the  distribution  or  trading  of  its  capital  stock  or
               comparable equity interest; and

     o    it may not make,  permit any finance  subsidiary  to make, or make any
          payments that would enable any finance subsidiary to make, any payment
          of  any  dividends  on,  any  distribution  with  respect  to,  or any
          redemption,  purchase  or other  acquisition  of,  or any  liquidation
          payment with respect to, any preferred  security or comparable  equity
          interest of any finance subsidiary.

EVENTS OF DEFAULT; ENFORCEMENT OF TRUST GUARANTEE

     An event of default under the Trust  Guarantee  will occur upon the failure
of ML&Co.  to perform any of its payment or other  obligations  set forth in the
Trust Guarantee.

   
     The holders of a majority in liquidation amount of the TOPrS have the right
to direct the time, method and place of conducting any proceeding for any remedy
available to the trust guarantee  trustee or to direct the exercise of any trust
or power conferred upon the trust guarantee  trustee under the trust  guarantee.
If the trust  guarantee  trustee  fails to enforce  its  rights  under the Trust
Guarantee after a holder of the TOPrS has made a written request, the holder may
institute  a legal  proceeding  directly  against  ML&Co.  to enforce  the trust
guarantee trustee's rights under the Trust Guarantee,  without first instituting
a legal proceeding  against ML Trust,  the trust guarantee  trustee or any other
person or entity. In any event, if ML&Co. has failed to make a guarantee payment
under the Trust  Guarantee,  a holder of the  TOPrS  may  directly  institute  a
proceeding in the holder's own name against ML&Co.  for enforcement of the Trust
Guarantee for payment.
    

STATUS OF THE TRUST GUARANTEE; SUBORDINATION

     The Trust Guarantee will constitute an unsecured  obligation of ML&Co.  and
will rank subordinate and junior in right of payment to all other liabilities of
ML&Co.  and will rank  equally  with the most senior  preferred  stock,  if any,
issued from time to time by ML&Co.,  with similar guarantees issued by ML&Co. in
connection with:

     o    the  $275,000,000   aggregate  liquidation  amount  of  7  3/4%  Trust
          Originated  Preferred  Securities  issued by Merrill  Lynch  Preferred
          Capital Trust I,

     o    the $300,000,000  aggregate  liquidation amount of 8% Trust Originated
          Preferred  Securities  issued by Merrill Lynch Preferred Capital Trust
          II,

     o    the $750,000,000  aggregate  liquidation amount of 7% Trust Originated
          Preferred  Securities  issued by Merrill Lynch Preferred Capital Trust
          III,

     o    the  $400,000,000   aggregate   liquidation   amount  of  7.12%  Trust
          Originated  Preferred  Securities  issued by Merrill  Lynch  Preferred
          Capital Trust IV,

     o    the  $850,000,000   aggregate   liquidation   amount  of  7.28%  Trust
          Originated  Preferred  Securities  issued by Merrill  Lynch  Preferred
          Capital Trust V, and

     o    with any guarantee now or hereafter  entered into by ML&Co. in respect
          of any preferred stock of any other Finance Subsidiary.

     "Finance Subsidiary" means Merrill Lynch Preferred Capital Trust I, Merrill
Lynch  Preferred  Capital Trust II, Merrill Lynch  Preferred  Capital Trust III,
Merrill Lynch Preferred  Capital Trust IV, Merrill Lynch Preferred Capital Trust
V and any other wholly-owned subsidiary of ML&Co. the principal purpose of which
is to raise  capital for ML&Co.  by issuing  securities  that are  guaranteed by
ML&Co.  and the proceeds of which are loaned to or invested in ML&Co.  or one or
more of its affiliates.

   
     Accordingly,  the rights of the  holders  of the TOPrS to receive  payments
under the Trust  Guarantee  will be subject to the rights of the  holders of any
obligations of ML&Co.  that are senior in priority to the obligations  under the
Trust  Guarantee.  Furthermore,  the holders of obligations  of ML&Co.  that are
senior to the obligations under the Trust Guarantee,  including, but not limited
to, obligations  constituting senior indebtedness of ML&Co., will be entitled to
the  same  rights  upon  payment   default  or   dissolution,   liquidation  and
reorganization  in respect of the Trust  Guarantee  that inure to the holders of
senior indebtedness as against the holders of the ML&Co. Debenture. The terms of
the  TOPrS  that  each  holder  of  the  TOPrS,  by  acceptance,  agrees  to the
subordination provisions and other terms of the Trust Guarantee.
    

     The Trust  Guarantee  will  constitute  a  guarantee  of payment and not of
collection.  That is,  the  guaranteed  party  may  directly  institute  a legal
proceeding  against  ML&Co.  to  enforce  its rights  under the Trust  Guarantee
without instituting a legal proceeding against any other person or entity.

AMENDMENTS AND ASSIGNMENT

     Except with respect to any changes that do not materially  adversely affect
the rights of holders of the TOPrS, in which case no vote will be required,  the
Trust Guarantee may be amended only with the prior approval of the holders of at
least a majority in liquidation  amount of all the outstanding TOPrS. The manner
of  obtaining  any  approval  of holders of the TOPrS will be as set forth under
"Description  of  the  TOPrS--Voting  Rights".  All  guarantees  and  agreements
contained in the Trust Guarantee shall bind the successors,  assigns, receivers,
trustees  and  representatives  of ML&Co.  and shall inure to the benefit of the
holders of the TOPrS  then  outstanding.  Except in  connection  with  permitted
merger or consolidation of ML&Co. with or into another entity or permitted sale,
transfer or lease of ML&Co.'s  assets to another  entity in which the  surviving
corporation,  if other than ML&Co., assumes ML&Co.'s obligations under the Trust
Guarantee,  ML&Co.  may not assign its rights or delegate its obligations  under
the Trust  Guarantee  without  the prior  approval  of the holders of at least a
majority  of  the  aggregate  stated   liquidation  amount  of  the  TOPrS  then
outstanding.

TERMINATION OF THE TRUST GUARANTEE

     The Trust Guarantee will terminate as to each holder of the TOPrS upon:

   
     o    full payment of the redemption price of all the TOPrS,
    

     o    distribution of the partnership  preferred securities held by ML Trust
          to the holders of the TOPrS or

     o    full payment of the amounts payable in accordance with the declaration
          upon liquidation of ML Trust.

     The Trust Guarantee will continue to be effective or will be reinstated, as
the case may be, if at any time any holder of the TOPrS must restore  payment of
any sum paid under the TOPrS or the Trust Guarantee.

INFORMATION CONCERNING THE TRUST GUARANTEE TRUSTEE

   
     The trust  guarantee  trustee,  before  the  occurrence  of a default  with
respect to the Trust  Guarantee,  undertakes to perform only those duties as are
specifically set forth in the Trust Guarantee and, after default with respect to
the Trust  Guarantee,  shall  exercise  the same degree of care as a prudent man
would exercise in the conduct of his own affairs. Subject to that provision, the
trust  guarantee  trustee is under no  obligation  to exercise any of the powers
vested in it by the Trust Guarantee at the request of any holder of TOPrS unless
it is offered reasonable  indemnity against the costs,  expenses and liabilities
that might be incurred in connection with the exercise of those powers.
    

GOVERNING LAW

     The Trust Guarantee will be governed by, and construed in accordance  with,
the internal laws of the State of New York.

               DESCRIPTION OF THE PARTNERSHIP PREFERRED SECURITIES

   
     All  of  the  partnership  interests  in ML  Partnership,  other  than  the
partnership  preferred  securities  acquired by ML Trust,  are owned directly by
ML&Co..  Initially,  ML&Co.  will be the sole general partner of ML Partnership.
The  limited  partnership  agreement  authorizes  and  creates  the  partnership
preferred   securities,   which  represent   limited  partner  interests  in  ML
Partnership.  The  limited  partner  interests  represented  by the  partnership
preferred  securities will have a preference with respect to  distributions  and
amounts  payable on  redemption  or  liquidation  over  ML&Co.'s  interest in ML
Partnership.

     Except as otherwise described in this prospectus or provided in the limited
partnership  agreement,  the limited  partnership  agreement  does not permit ML
Partnership  to issue  any  additional  partnership  interests  or to incur  any
indebtedness.

     The summary of certain  material  terms and  provisions of the  partnership
preferred  securities  set forth below does not  purport to be  complete  and is
subject  to,  and  qualified  in its  entirety  by  reference  to,  the  limited
partnership  agreement,  which  is  filed  as an  exhibit  to  the  registration
statement  of  which  this  prospectus  is a  part,  and  the  Delaware  Limited
Partnership Act.
    

DISTRIBUTIONS

   
     Holders of  partnership  preferred  securities  will be entitled to receive
cumulative cash  distributions,  if, as and when declared by ML&Co.,  as general
partner,  in  its  sole  discretion  out of  assets  of ML  Partnership  legally
available for payment. The distributions  payable on each partnership  preferred
security  will be  fixed at a rate per annum of    % of the  stated  liquidation
preference of $25 per partnership preferred security.  Distributions not paid on
the scheduled  payment date will  accumulate and compound  quarterly at the rate
per annum equal to %. The amount of distributions payable for any period will be
computed on the basis of a 360-day year of twelve 30-day months.
    

     Distributions  on the  partnership  preferred  securities  will be  payable
quarterly   in   arrears  on              ,              ,               ,   and
of each year, commencing           , 199  . If distributions  are  not  declared
and paid when  scheduled,  the  accumulated  distributions  shall be paid to the
holders of record of  partnership  preferred  securities  as they  appear on the
books and  records  of ML  Partnership  on the record  date with  respect to the
payment date for the partnership preferred securities.

   
     ML Partnership's  earnings available for distribution to the holders of the
partnership  preferred  securities  will  be  limited  to  payments  made on the
Affiliate Investment Instruments and Investment Guarantees and payments on other
eligible debt securities in which ML Partnership has invested from time to time.
See  "--Partnership  Investments".  To the extent  that the issuers  and,  where
applicable,  ML&Co.,  as guarantor,  of the  securities in which ML  Partnership
invests fail to make any payment in respect of the securities or, if applicable,
the guarantees,  ML Partnership  will not have sufficient  funds to pay and will
not declare or pay  distributions on the partnership  preferred  securities,  in
which  event the  Partnership  Guarantee  will not apply to those  distributions
until ML  Partnership  has  sufficient  funds  available for  distribution.  See
"Description of the Partnership  Guarantee".  In addition,  distributions on the
partnership  preferred securities may be declared and paid only as determined in
the sole  discretion  of ML&Co.  as  general  partner of ML  Partnership.  If ML
Partnership fails to declare and pay distributions on the partnership  preferred
securities out of funds legally  available for  distribution,  ML Trust will not
have  sufficient  funds to make  distributions  on the TOPrS, in which event the
Trust  Guarantee  will  not  apply  to those  distributions  until ML Trust  has
sufficient funds available.  In addition, ML Partnership may not have sufficient
funds to pay current or liquidating  distributions on the partnership  preferred
securities if:

     o    at any time that ML  Partnership  is  receiving  current  payments  in
          respect  of  the  securities  held  by ML  Partnership  including  the
          debentures,   ML&Co.,  in  its  sole  discretion,   does  not  declare
          distributions   on  the  partnership   preferred   securities  and  ML
          Partnership  receives  insufficient  amounts  to  pay  the  additional
          compounded  distributions  that  will  accumulate  in  respect  of the
          partnership preferred securities,
    

     o    ML  Partnership  reinvests  the  proceeds  received  in respect of the
          debentures upon their  retirement or at their  maturities in Affiliate
          Investment  Instruments  that do not generate income in an amount that
          is sufficient to pay full  distributions in respect of the partnership
          preferred securities, or

     o    ML  Partnership  invests in debt  securities of Investment  Affiliates
          that are not guaranteed by ML&Co.  and that cannot be liquidated by ML
          Partnership for an amount sufficient to pay any distributions in full.

   
     Distributions  on the partnership  preferred  securities will be payable to
holders  as they  appear on the  books  and  records  of ML  Partnership  on the
relevant record dates,  which, as long as the TOPrS remain or, in the event that
ML Trust is liquidated in connection  with a Trust Special Event, as long as the
partnership  preferred  securities  remain, in book-entry only form, will be one
Business Day before the relevant  payment dates.  In the event the TOPrS,  or in
the event that ML Trust is liquidated in connection  with a Trust Special Event,
the partnership preferred securities, shall not continue to remain in book-entry
only form,  the relevant  record dates shall be the 15th day of the month of the
relevant  payment dates. In the event that any date on which  distributions  are
payable on the  partnership  preferred  securities  is not a Business  Day, then
payment  of the  distribution  payable  on that  date  will be made on the  next
succeeding  day that is a Business Day and without any interest or other payment
in  respect of any  delay,  except  that,  if that  Business  Day is in the next
succeeding  calendar  year,  that  payment  shall  be  made  on the  immediately
preceding  Business  Day, in each case with the same force and effect as if made
on that date.
    

PARTNERSHIP ENFORCEMENT EVENTS

     If one or more of the following  events shall occur and be continuing (each
a "Partnership Enforcement Event"):

     o    The  non-payment  of  distributions   on  the  partnership   preferred
          securities for six consecutive quarterly periods,

     o    ML&Co. is in default on any of its  obligations  under the Partnership
          Guarantee or any Investment Guarantee or

     o    an  Investment  Event  of  Default  occurs  and is  continuing  on any
          Affiliate Investment Instrument,

   
then the property trustee,  for so long as the partnership  preferred securities
are held by the  property  trustee,  will  have the  right,  or  holders  of the
partnership  preferred  securities will be entitled by the vote of a majority in
aggregate liquidation preference of the holders:

     o    under the limited  partnership  agreement  to enforce the terms of the
          partnership preferred  securities,  including the right to appoint and
          authorize a special  representative  of ML Partnership and the limited
          partners to enforce:
    

          (1)  ML Partnership's  creditors' rights and other rights with respect
               to  the  Affiliate  Investment  Instruments  and  the  Investment
               Guarantees,

          (2)  the rights of the holders of the partnership preferred securities
               under the Partnership Guarantee and

          (3)  the rights of the holders of the partnership preferred securities
               to receive distributions on the partnership preferred securities,
               only if and to the extent declared out of funds legally available
               for distribution, and

     o    under  the   Partnership   Guarantee  to  enforce  the  terms  of  the
          Partnership  Guarantee,  including  the right to enforce the  covenant
          restricting certain payments by ML&Co. and Finance Subsidiaries.

   
     If the  special  representative  fails to  enforce  its  rights  under  the
Affiliate  Investment  Instruments  after  a  holder  of  partnership  preferred
securities  has made a written  request,  the  holder  of record of  partnership
preferred securities may directly institute a legal proceeding against ML&Co. to
enforce the rights of the special  representative  and ML Partnership  under the
Affiliate Investment  Instruments without first instituting any legal proceeding
against  the  special  representative,  ML  Partnership  or any other  person or
entity.  In any event,  if a Partnership  Enforcement  Event has occurred and is
continuing  and this  event is  attributable  to the  failure  of an  Investment
Affiliate to make any  required  payment  when due on any  Affiliate  Investment
Instrument,  then a holder of partnership  preferred securities may on behalf of
ML Partnership  directly institute a proceeding against the Investment Affiliate
with respect to the Affiliate Investment  Instrument for enforcement of payment.
A holder of  partnership  preferred  securities  may also bring a direct  action
against ML&Co.  to enforce the holder's right under the  Partnership  Guarantee.
See "Description of the Partnership Guarantee--Events of Default; Enforcement of
Partnership Guarantee".

     Under no  circumstances,  however,  shall the special  representative  have
authority to cause ML&Co. to declare  distributions on the partnership preferred
securities.  As a result,  although  the special  representative  may be able to
enforce ML Partnership's creditors' rights to accelerate and receive payments in
respect of the Affiliate Investment  Instruments and the Investment  Guarantees,
ML  Partnership  would be  entitled  to reinvest  those  payments in  additional
Affiliate  Investment  Instruments,   subject  to  satisfying  the  reinvestment
criteria  described  under  "--Partnership   Investments",   and  Eligible  Debt
Securities,  rather than declaring and making  distributions  on the partnership
preferred securities.  The special representative shall not, by virtue of acting
in such  capacity,  be  admitted  as a  general  partner  in ML  Partnership  or
otherwise be deemed to be a general  partner in ML Partnership and shall have no
liability for the debts, obligations or liabilities of ML Partnership.
    

PARTNERSHIP INVESTMENTS

   
     ML Partnership will use approximately 99% of the proceeds from the issuance
of the partnership  preferred  securities and ML&Co.'s  contemporaneous  capital
contribution  to purchase  the  debentures  and the  remaining 1% of the initial
partnership  proceeds  will be used to purchase  Eligible  Debt  Securities.  ML
Partnership's  purchase of the debentures will occur  contemporaneously with the
issuance of the partnership preferred securities.

     The initial Affiliate Investment  Instruments  purchased by the Partnership
will  consist  of  two  or  more  debt  instruments.   ML&Co.  anticipates  that
approximately 85% of the Initial Partnership Proceeds will be used to purchase a
debenture  of ML&Co.  (the "ML&Co.  Debenture"),  and  approximately  14% of the
initial partnership  proceeds will be used to purchase debentures of one or more
eligible  controlled  affiliates of ML&Co.  Each debenture is expected to have a
term of 20 years and to provide  for  interest  payable on          ,          ,
and of each year, commencing           , at market rates for the debentures. The
debentures will be general  unsecured debt  obligations of the relevant  issuer,
except that the ML&Co.  Debenture will rank subordinate and junior to all senior
indebtedness of ML&Co.

     The payment of interest  on each of the  debentures  may be deferred at any
time,  and from time to time, by the relevant  issuer for a period not exceeding
six  consecutive  quarters.  If an issuer were to defer the payment of interest,
interest  would  continue to accrue and compound at the stated  interest rate on
the applicable debenture.  The debentures will contain covenants appropriate for
unsecured debt securities issued or guaranteed by similar borrowers  pursuant to
a public offering or private  placement under Rule 144A of the Securities Act of
a comparable debt security, including a limitation on consolidation,  merger and
sale or conveyance of assets. The debentures will contain redemption  provisions
that  correspond to the  redemption  provisions  applicable  to the  partnership
preferred  securities,  including  an  option to redeem  the  debentures  by the
relevant issuer, in whole or in part, from time to time, on or after           ,
                , and following the occurrence of a Partnership  Special  Event,
in each case,  in the same manner  described  under  "Optional  Redemption"  and
"Partnership Special Event Redemption".  The debentures, and any other Affiliate
Investment  Instruments that are debt instruments  acquired by ML Partnership in
the future, will also contain customary events of default, including:
    

     o    events of default for defaults in payments on the securities when due,
          provided  that no  default  shall  occur upon a valid  deferral  of an
          interest payment by an issuer,

   
     o    defaults in the performance of the relevant issuer's obligations under
          its debenture or Affiliate Investment Instruments, as the case may be,
          and
    

     o    certain bankruptcy,  insolvency or reorganization  events,  subject to
          customary exceptions and grace periods.

   
     The payment of interest and  principal  when due and other payment terms of
the  debentures  other than ML&Co.  Debenture,  will be guaranteed to the extent
described in this prospectus (each, an "Investment Guarantee") by ML&Co. for the
benefit of the holders of partnership  preferred  securities.  See "--Investment
Guarantees".

     ML  Partnership  will invest  approximately  1% of the initial  partnership
proceeds in eligible  debt  securities.  These  eligible  debt  securities  will
comprise  cash  or  book-entry  securities,  negotiable  instruments,  or  other
securities  of entities not  affiliated  with ML&Co.  which  evidence any of the
following:
    

     o    any security  issued or  guaranteed as to principal or interest by the
          United States,  or by a person  controlled or supervised by and acting
          as an  instrumentality of the Government of the United States pursuant
          to  authority  granted by the  Congress of the United  States,  or any
          certificate of deposit for any of the foregoing;

     o    commercial  paper issued pursuant to Section 3(a)(3) of the Securities
          Act  and  having,  at  the  time  of  the  investment  or  contractual
          commitment to invest therein,  a rating from each of Standard & Poor's
          Ratings  Services,  a  division  of the  McGraw-Hill  Companies,  Inc.
          ("S&P") and Moody's Investors Service, Inc. ("Moody's") in the highest
          investment  rating category granted by such rating agency and having a
          maturity not in excess of nine months;

     o    demand  deposits,  time deposits and certificates of deposit which are
          fully insured by the Federal Deposit Insurance Corporation;

     o    repurchase  obligations  with respect to any security that is a direct
          obligation  of, or fully  guaranteed  by, the Government of the United
          States of  America  or any  agency  or  instrumentality  thereof,  the
          obligations  of which are  backed by the full  faith and credit of the
          United  States  of  America,  in  either  case  entered  into  with  a
          depository   institution   or  trust  company  which  is  an  Eligible
          Institution and the deposits of which are insured by the FDIC; and

     o    any other security which is identified as a permitted  investment of a
          finance subsidiary  pursuant to Rule 3a-5 under the Investment Company
          Act at the time it is acquired by ML Partnership.

   
     "Eligible  Institution" means, a depository institution organized under the
laws of the United  States or any one of the states  thereof or the  District of
Columbia, or any domestic branch of a foreign bank, which has either:
    

     o    a  long-term  unsecured  debt  rating of AA or better by S&P and Aa or
          better by Moody's or

     o    a short-term  unsecured debt rating or a certificate of deposit rating
          of A-1+ by S&P and P-1 by Moody's,

and whose  deposits  are insured by the FDIC or whose the parent has a long-term
or short-term  unsecured debt rating which signifies  investment grade and whose
deposits are insured by the FDIC.

   
     ML  Partnership  may,  from time to time and  subject  to the  restrictions
described  below,  reinvest  payments  received  with  respect to the  Affiliate
Investment  Instruments and the eligible debt securities in additional Affiliate
Investment  Instruments  and eligible  debt  securities.  As of the date of this
prospectus,  ML&Co.,  as the  General  Partner,  does  not  intend  to  cause ML
Partnership to reinvest  regularly  scheduled,  periodic payments of interest or
dividends  received by ML Partnership in the manner  described  below,  although
there  can  be  no  assurance   that  ML&Co.'s   intention  in  respect  of  any
reinvestments will not change in the future.

     The fairness of specific terms of all Affiliate Investment Instruments will
be passed upon by an  independent  financial  advisor which will be a nationally
recognized  accounting firm, bank or investment  banking firm that does not, and
whose  directors,  officers,  employees and  affiliates do not, have a direct or
indirect material equity interest in ML&Co. or any of its subsidiaries.
    

     ML Partnership may reinvest in additional Affiliate Investment  Instruments
only if certain  procedures  and  criteria  are  satisfied  with respect to each
Affiliate  Investment  Instrument,  including the  satisfaction of the following
conditions:

   
     (1)  ML  Partnership  did not hold  debt  securities  of the  issuer of the
          proposed Affiliate Investment  Instrument within the three-year period
          ending on the date of proposed investment;

     (2)  there was never a default on any debt  obligation of, or arrearages of
          dividends  on  preferred  stock  issued by, the issuer of the proposed
          Affiliate  Investment  Instrument  that was previously or is currently
          owned by ML Partnership;

     (3)  the  applicable  terms and  provisions  with  respect to the  proposed
          Affiliate   Investment   Instrument   have  been   determined  by  the
          independent  financial  advisor to be at least as  favorable  as terms
          which  could be  obtained by ML  Partnership  in a public  offering or
          private  placement  under  Rule  144A  of  the  Securities  Act  of  a
          comparable  security issued by the relevant  Investment  Affiliate and
          guarantees, if any; and

     (4)  the  requesting  Investment  Affiliate  shall  not be  deemed to be an
          investment company by reason of Section 3(a) or 3(b) of the Investment
          Company Act or is otherwise an eligible recipient of funds directly or
          indirectly from ML Trust pursuant to an order issued by the SEC.

     The  term   "Investment   Affiliate"   means  ML&Co.  or  any  corporation,
partnership,  limited  liability  company or other entity that is  controlled by
ML&Co.,  other than ML Partnership  or ML Trust.  If ML Partnership is unable to
reinvest  payments  and  proceeds  from  Affiliate  Investment   Instruments  in
additional  Affiliate  Investment  Instruments  meeting the above  criteria,  ML
Partnership may only invest those funds in eligible debt securities,  subject to
restrictions of applicable law, including the Investment Company Act.
    

INVESTMENT GUARANTEES

   
     ML&Co.  will agree to execute and  deliver an  Investment  Guarantee,  on a
subordinated  basis,  for the  benefit of the holders of  partnership  preferred
securities  with respect to each  debenture  issued by an Investment  Affiliate,
other than the ML&Co.  Debenture,  to the extent set forth below. The Investment
Guarantees shall be enforceable  regardless of any defense,  right of set-off or
counterclaim that ML&Co. may have or assert.  The Investment  Guarantees will be
full and unconditional  guarantees,  to the extent set forth in this prospectus,
with respect to the  applicable  Debentures  from the time of  issuance.  To the
extent that, as described above, ML Partnership invests in additional  Affiliate
Investment Instruments, the determination as to whether the Affiliate Investment
Instrument will contain an Investment  Guarantee will be made at the date of its
issuance  and will be  based,  among  other  things,  upon its  approval  by the
independent  financial  advisor in  accordance  with the  reinvestment  criteria
described above.

     The Investment  Guarantees will constitute guarantees of payment and not of
collection.  That is,  the  guaranteed  party  may  directly  institute  a legal
proceeding against ML&Co. to enforce its rights under the applicable  Investment
Guarantee  without  instituting a legal  proceeding  against any other person or
entity.  If  no  special  representative  has  been  appointed  to  enforce  any
Investment  Guarantee,  ML&Co.  as general  partner has the right to enforce the
Investment  Guarantee  on behalf of the  holders  of the  partnership  preferred
securities.  The  holders of not less than a majority in  aggregate  liquidation
preference of the partnership  preferred securities have the right to direct the
time,  method and place of conducting any proceeding for any remedy available in
respect of any  Investment  Guarantee,  including  the giving of  directions  to
ML&Co. as general partner or the special representative,  as the case may be. If
ML&Co. or the special  representative  fails to enforce any Investment Guarantee
as  above  provided,  any  holder  of the  TOPrS  may  institute  its own  legal
proceeding to enforce that Investment Guarantee. No Investment Guarantee will be
discharged  except  by  payment  in  full  of all  amounts  guaranteed  by  such
Investment  Guarantee,  without  duplication of amounts  previously  paid by the
relevant Investment Affiliate.
    

     AMENDMENTS AND ASSIGNMENT

   
     Except with respect to any changes that do not adversely  affect the rights
of holders of partnership preferred securities, in which case no consent will be
required,  the Investment Guarantees may be amended only with the prior approval
of the  holders of not less than a majority  in  liquidation  preference  of the
outstanding  partnership preferred securities,  provided that for so long as the
property  trustee  of ML  Trust  is  the  holder  of the  partnership  preferred
securities, no amendment will be effective without the prior written approval of
a majority in liquidation  amount of the outstanding  TOPrS.  All guarantees and
agreements  contained in the Investment  Guarantees  shall bind the  successors,
assigns,  receivers,  trustees and  representatives of ML&Co. and shall inure to
the  benefit  of the  holders of  partnership  preferred  securities.  Except in
connection with any permitted  merger or  consolidation  of ML&Co.  with or into
another entity or any permitted  sale,  transfer or lease of ML&Co.'s  assets to
another entity in which the surviving corporation, if other than ML&Co., assumes
ML&Co.'s obligations under the Investment Guarantees,  ML&Co. may not assign its
rights or delegate its obligations under the Investment  Guarantees  without the
prior  approval of the holders of at least a majority  of the  aggregate  stated
liquidation preference of the partnership preferred securities then outstanding.
    

     STATUS OF THE INVESTMENT GUARANTEES

     ML&Co.'s  obligations  under  the  Investment  Guarantees  will  constitute
unsecured obligations of ML&Co. and will rank subordinate and junior in right of
payment to all other  liabilities of ML&Co.  and will rank equally with the most
senior preferred stock, if any, issued from time to time by ML&Co., with similar
guarantees issued by ML&Co. in connection with:

     o    the  $275,000,000   aggregate  liquidation  amount  of  7  3/4%  Trust
          Originated  Preferred  Securities  issued by Merrill  Lynch  Preferred
          Capital Trust I,

     o    the $300,000,000  aggregate  liquidation amount of 8% Trust Originated
          Preferred  Securities  issued by Merrill Lynch Preferred Capital Trust
          II,

     o    the $750,000,000  aggregate  liquidation amount of 7% Trust Originated
          Preferred  Securities  issued by Merrill Lynch Preferred Capital Trust
          III,

     o    the  $400,000,000   aggregate   liquidation   amount  of  7.12%  Trust
          Originated  Preferred  Securities  issued by Merrill  Lynch  Preferred
          Capital Trust IV,

     o    the  $850,000,000   aggregate   liquidation   amount  of  7.28%  Trust
          Originated  Preferred  Securities  issued by Merrill  Lynch  Preferred
          Capital Trust V and

     o    with any guarantee now or hereafter  entered into by ML&Co. in respect
          of any preferred stock of any other Finance Subsidiary.

   
     Accordingly,  the  rights  of the  holders  of the  debentures  to  receive
payments  under the Investment  Guarantees  will be subject to the rights of the
holders of any obligations that are senior in priority to the obligations  under
the  Investment  Guarantees.  Furthermore,  the holders of obligations of ML&Co.
that are senior to the obligations under the Investment  Guarantees,  including,
but not  limited  to,  obligations  constituting  Senior  Indebtedness,  will be
entitled to the same rights upon payment default or dissolution, liquidation and
reorganization in respect of the Investment Guarantees that inure to the holders
of senior indebtedness as against the holders of the ML&Co. Debenture. The terms
of the debentures provide that each holder of debentures, by acceptance thereof,
agrees  to the  subordination  provisions  and  other  terms  of the  Investment
Guarantees.
    

     GOVERNING LAW

     The Investment  Guarantees  will be governed by and construed in accordance
with the internal laws of the State of New York.

OPTIONAL REDEMPTION

   
     The  partnership  preferred  securities  are  redeemable,  at the option of
ML&Co., as general partner,  in whole or in part, from time to time, on or after
                    ,                   , upon not less  than 30 nor  more  than
60 days notice,  at an amount per  partnership  preferred  security equal to $25
plus  accumulated  and  unpaid   distributions.    If  ML  Partnership   redeems
partnership  preferred  securities in accordance with their terms, ML Trust will
redeem the Trust Securities at the redemption price. If:
    

     o    a partial redemption would result in the delisting of the TOPrS,

     o    ML Trust is liquidated in connection with a Trust Special Event, or

     o    a partial  redemption would result in the delisting of the partnership
          preferred securities,

then, in each case, ML  Partnership  may only redeem the  partnership  preferred
securities in whole.

PARTNERSHIP SPECIAL EVENT REDEMPTION

   
     If, at any  time,  a  Partnership  Tax  Event or a  Partnership  Investment
Company Event (each as defined below,  and each a "Partnership  Special  Event")
occurs and is continuing,  ML&Co. shall, within 90 days following the occurrence
of such Partnership Special Event, elect to either:

     o    redeem the partnership preferred securities in whole, but not in part,
          upon not less  than 30 or more than 60 days  notice at the  redemption
          price,  provided  that,  if at  the  time  there  is  available  to ML
          Partnership  the  opportunity to eliminate,  within the 90-day period,
          the Partnership  Special Event by taking some ministerial action, such
          as filing a form or making an election, or pursuing some other similar
          reasonable  measure  that in the sole  judgment of ML&Co.  has or will
          cause no adverse effect on ML Partnership,  ML Trust or ML&Co., ML&Co.
          will pursue that measure in lieu of redemption; or

     o    cause the  partnership  preferred  securities  to remain  outstanding,
          provided that in the case of this clause, the ML&Co. shall pay any and
          all  costs and  expenses  incurred  by or  payable  by ML  Partnership
          attributable to the Partnership Special Event.

     "Partnership Tax Event" means that ML&Co. shall have requested and received
an opinion of nationally recognized independent tax counsel experienced in these
matters to the effect that there has been a Tax Action which  affects any of the
events  described  in (1)  through  (3)  below  and that  there is more  than an
insubstantial risk that:

     (1)  ML Partnership is, or will be, subject to United States Federal income
          tax with  respect  to income  accrued  or  received  on the  Affiliate
          Investment Instruments or the eligible debt securities,

     (2)  ML  Partnership  is, or will be, subject to more than a minimal amount
          of other taxes, duties or other governmental charges or

     (3)  interest  payable  by an  Investment  Affiliate  with  respect  to the
          Affiliate Investment Instrument issued by that Investment Affiliate to
          ML  Partnership  is not, or will not be,  deductible by the Investment
          Affiliate for United States Federal income tax purposes.

     Recently,  the IRS asserted that the interest  payable on a security issued
in similar  circumstances  as the issuance of the  debentures by the  Investment
Affiliates to ML Partnership was not deductible for United States Federal income
tax  purposes.  The  taxpayer  in that case has filed a  petition  in the United
States Tax Court  challenging the IRS's position on this matter.  If this matter
were to be  litigated  and the Tax Court were to sustain  the IRS's  position on
this matter,  the judicial  decision could  constitute a Partnership  Tax Event,
which  could  result  in  an  early  redemption  of  the  partnership  preferred
securities.

     "Partnership  Investment  Company  Event"  means  that  ML&Co.  shall  have
requested and received an opinion of  nationally  recognized  independent  legal
counsel  experienced  in these  matters  to the  effect  that as a result of the
occurrence  on or after the date of this  prospectus  of a Change in  Investment
Company Act Law, ML Partnership  is or will be considered an investment  company
which is required to be registered under the Investment Company Act.
    

REDEMPTION PROCEDURES

     ML Partnership  may not redeem fewer than all the  outstanding  partnership
preferred  securities unless all accumulated and unpaid  distributions have been
paid on all  partnership  preferred  securities  for all quarterly  distribution
periods terminating on or before the date of redemption.

     If ML  Partnership  gives a notice of redemption in respect of  partnership
preferred securities, which notice will be irrevocable, then, by 12:00 noon, New
York City time, on the redemption date, ML Partnership:

   
     o    if the  partnership  preferred  securities are in book entry form with
          DTC,  will deposit  irrevocably  with DTC funds  sufficient to pay the
          applicable redemption price and will give DTC irrevocable instructions
          and  authority  to  pay  the  redemption   price  in  respect  of  the
          partnership preferred securities held through DTC in global form, or
    

     o    if the partnership preferred securities are held in certificated form,
          will  deposit  with the  paying  agent for the  partnership  preferred
          securities  funds  sufficient  to pay any  amount  in  respect  of any
          partnership  preferred  securities in certificated  form and will give
          the paying agent  irrevocable  instructions and authority to pay these
          amounts  to the  holders  of  partnership  preferred  securities  upon
          surrender of their certificates.

See "Description of the  TOPrS--Book-Entry  Only Issuance--The  Depository Trust
Company".

   
     If notice  of  redemption  shall  have been  given and funds  deposited  as
required,  then upon the date of the  deposit,  all  rights of  holders  of such
partnership preferred securities so called for redemption will cease, except the
right of the holders of such  partnership  preferred  securities  to receive the
redemption  price, but without  interest on that redemption  price. In the event
that any date fixed for redemption of partnership  preferred securities is not a
Business Day, then payment of the redemption  price payable on that date will be
made on the next succeeding day that is a Business Day, and without any interest
or other  payment in respect of any delay,  except  that,  if that  Business Day
falls in the next  calendar  year,  the payment will be made on the  immediately
preceding  Business  Day, in each case with the same force and effect as if made
on the date fixed for  redemption.  In the event that payment of the  redemption
price in respect of partnership  preferred  securities is improperly withheld or
refused and not paid either by ML Partnership or by ML&Co. under the Partnership
Guarantee   described  under   "Description   of  the  Partnership   Guarantee,"
distributions  on  the  partnership   preferred   securities  will  continue  to
accumulate, from the original redemption date to the date of payment.
    

     Subject to the foregoing and applicable law, including, without limitation,
United States Federal  securities laws, ML&Co. or any of its subsidiaries may at
any  time and  from  time to time  purchase  outstanding  partnership  preferred
securities by tender, in the open market or by private agreement.

LIQUIDATION DISTRIBUTION UPON DISSOLUTION

   
     In the event of any  voluntary or  involuntary  dissolution,  winding-up or
termination  of  ML  Partnership,  the  holders  of  the  partnership  preferred
securities  at the time will be  entitled  to  receive  out of the  assets of ML
Partnership  available  for  distribution  to  partners  after  satisfaction  of
liabilities of creditors as required by the Delaware Partnership Act, before any
distribution of assets is made to ML&Co. as General Partner, an amount equal to,
in the case of holders of partnership preferred securities, the aggregate of the
stated  liquidation  preference of $25 per partnership  preferred  security plus
accumulated and unpaid distributions on the partnership  preferred securities to
the date of payment.
    

     Under the Limited Partnership Agreement,  ML Partnership shall be dissolved
and its affairs shall be wound up:

   
     o    upon the bankruptcy of ML&Co.,

     o    upon the assignment by ML&Co. of its entire interest in ML Partnership
          when the  assignee  is not  admitted  to ML  Partnership  as a general
          partner of ML Partnership in accordance  with the limited  partnership
          agreement,  or the  filing  of a  certificate  of  dissolution  or its
          equivalent  with  respect to ML&Co.,  or the  revocation  of  ML&Co.'s
          charter  and the  expiration  of 90 days  after  the date of notice to
          ML&Co. of revocation without a reinstatement of its charter, or if any
          other event  occurs  that causes the General  Partner to cease to be a
          general  partner  of  ML  Partnership   under  the  Delaware   Limited
          Partnership Act, unless the business of ML Partnership is continued in
          accordance with the Delaware Limited Partnership Act,
    

     o    if  ML  Partnership  has  redeemed  or  otherwise  purchased  all  the
          partnership preferred securities,

     o    upon the entry of a decree of judicial dissolution or

     o    upon the written consent of all partners of ML Partnership.

VOTING RIGHTS

     Except  as  provided  below  and  under  "Description  of  the  Partnership
Guarantee--Amendments  and Assignment" and as otherwise  required by law and the
Limited  Partnership  Agreement,   the  holders  of  the  partnership  preferred
securities will have no voting rights.

   
     Not later  than 30 days after any  Partnership  Enforcement  Event  occurs,
ML&Co.  will  convene  a  meeting  for  the  purpose  of  appointing  a  special
representative.  If ML&Co.  fails to convene a meeting within the 30-day period,
the holders of 10% in  liquidation  preference  of the  outstanding  partnership
preferred  securities  will be entitled to convene a meeting.  The provisions of
the limited  partnership  agreement relating to the convening and conduct of the
meetings of the partners  will apply with  respect to any meeting.  In the event
that, at any meeting,  holders of less than a majority in aggregate  liquidation
preference  of  partnership  preferred  securities  entitled  to  vote  for  the
appointment of a special  representative  vote for the  appointment,  no special
representative shall be appointed.  Any special  representative  appointed shall
cease to be a special  representative of ML Partnership and the limited partners
if:
    

     o    ML Partnership, or ML&Co. pursuant to the Partnership Guarantee, shall
          have paid in full all  accumulated  and  unpaid  distributions  on the
          partnership preferred securities,

   
     o    any event of default under any Affiliate Investment  Instruments shall
          have been cured, and

     o    ML&Co. is in compliance with all its obligations under the Partnership
          Guarantee and ML&Co.,  in its capacity as the general  partner,  shall
          continue the business of ML Partnership without dissolution.

     o    Notwithstanding the appointment of the special representative,  ML&Co.
          shall  continue as General  Partner and shall  retain all rights under
          the limited partnership agreement,  including the right to declare, in
          its sole  discretion,  the payment of distributions on the partnership
          preferred  securities  for which the failure to declare  distributions
          would  not   constitute  a  default  under  the  limited   partnership
          agreement.

     If any proposed  amendment to the limited  partnership  agreement  provides
for, or ML&Co. otherwise proposes to effect,

     o    any action  that would  adversely  affect the powers,  preferences  or
          special rights of the partnership preferred securities, whether by way
          of  amendment  to the  limited  partnership  agreement  or  otherwise,
          including,  without  limitation,  the authorization or issuance of any
          limited   partner   interests  in  ML  Partnership   ranking,   as  to
          participation  in the profits or  distributions or in the assets of ML
          Partnership, senior to the partnership preferred securities, or
    

     o    the  dissolution,  winding-up or termination of ML Partnership,  other
          than:

          (A)  in connection with the occurrence of a Partnership  Special Event
               or

          (B)  as described under "Merger,  Consolidation or Amalgamation of the
               Partnership" below,

   
then  the  holders  of  outstanding  partnership  preferred  securities  will be
entitled to vote on any  amendment  or proposal of ML&Co.,  but not on any other
amendment  or  proposal,  as a class,  and no  amendment  or  proposal  shall be
effective  without the  approval  of the  holders of a majority  in  liquidation
preference of the outstanding partnership preferred securities having a right to
vote on the matter; provided, however, that if the property trustee on behalf of
ML Trust is the holder of the partnership preferred securities, any amendment or
proposal  not  excepted  by  clauses  (A) and (B) above  shall not be  effective
without  the prior or  concurrent  approval  of the  holders  of a  majority  in
liquidation  amount  of the  outstanding  TOPrS  having  a right  to vote on the
matters.

     The ML&Co. shall not
    

     o    direct the time, method and place of conducting any proceeding for any
          remedy available,

   
     o    waive any  event of  default  that is  waivable  under  the  Affiliate
          Investment Instruments,
    

     o    exercise  any  right  to  rescind  or  annul a  declaration  that  the
          principal of any  Affiliate  Investment  Instruments  shall be due and
          payable,

     o    waive the  breach of the  obligation  by ML&Co.  to  restrict  certain
          payments by ML&Co., or

     o    consent to any amendment, modification or termination of any Affiliate
          Investment  Instrument,  where such consent shall be required from the
          investor,

   
without, in each case, obtaining the prior approval of the holders of at least a
majority in  liquidation  preference of the  partnership  preferred  securities;
provided,  however,  that if the  property  trustee on behalf of ML Trust is the
holder of the partnership preferred securities, any waiver, consent or amendment
or other action shall not be effective without the prior or concurrent  approval
of at least a majority in liquidation  amount of the outstanding  TOPrS having a
right to vote on these matters.  ML&Co.  shall not revoke any action  previously
authorized  or approved by a vote of the  holders of the  partnership  preferred
securities  without the approval of the  revocation by a majority in liquidation
preference of the outstanding  partnership  preferred  securities.  ML&Co. shall
notify all holders of the partnership  preferred  securities of any notice of an
event of default received with respect to any Affiliate Investment Instrument.
    

     Any required approval of holders of partnership preferred securities may be
given at a  separate  meeting of holders  of  partnership  preferred  securities
convened for that purpose, at a meeting of all of the partners in ML Partnership
or  pursuant  to  written  consent.  ML  Partnership  will cause a notice of any
meeting at which holders of  partnership  preferred  securities  are entitled to
vote, or of any matter upon which action by written consent of the holders is to
be  taken,  to be mailed to each  holder  of  record  of  partnership  preferred
securities. Each notice will include a statement setting forth

     o    the date of the meeting or the date by which action is to be taken,

     o    a description of any  resolution  proposed for adoption at the meeting
          on which  holders are  entitled  to vote or of the matters  upon which
          written consent is sought and

     o    instruction for the delivery of proxies or consents.

   
     No vote or consent of the holders of partnership  preferred securities will
be  required  for ML  Partnership  to redeem  and cancel  partnership  preferred
securities in accordance with the limited partnership agreement.
    

     Notwithstanding  that  holders  of  partnership  preferred  securities  are
entitled to vote or consent under any of the circumstances  described above, any
of the partnership preferred securities at such time that are beneficially owned
by ML&Co. or by any entity directly or indirectly controlled by, or under direct
or indirect  common  control  with,  ML&Co.,  except for  partnership  preferred
securities  purchased or acquired by ML&Co. or its affiliates in connection with
transactions effected by or for the account of customers of ML&Co. or any of its
subsidiaries  or  in  connection  with  the  distribution  or  trading  of  such
partnership preferred  securities;  shall not be entitled to vote or consent and
shall,  for  purposes  of any vote or  consent,  be  treated as if they were not
outstanding,  provided,  however, that persons, other than affiliates of ML&Co.,
to whom ML&Co. or any of its  subsidiaries  have pledged  partnership  preferred
securities may vote or consent with respect to the pledged partnership preferred
securities under the terms of the pledge.

   
     Holders  of the  partnership  preferred  securities  will have no rights to
remove or replace ML&Co. as general partner.
    

MERGER, CONSOLIDATION OR AMALGAMATION OF ML PARTNERSHIP

     ML Partnership may not consolidate,  amalgamate,  merge with or into, or be
replaced  by,  or  convey,   transfer  or  lease  its   properties   and  assets
substantially  as an  entirety  to, any  corporation  or other  body,  except as
described  below. ML Partnership  may, without the consent of the holders of the
partnership preferred securities,  consolidate,  amalgamate, merge with or into,
or be  replaced by a limited  partnership,  limited  liability  company or trust
organized  as such under the laws of any state of the United  States of America,
provided that:

     o    the successor entity either:

          (A)  expressly  assumes all of the obligations of ML Partnership under
               the partnership preferred securities or

   
          (B)  substitutes  for  the  partnership   preferred  securities  other
               securities having substantially the same terms as the partnership
               preferred  securities  so  long  as  the  partnership   successor
               securities  are not junior to any other equity  securities of the
               successor  entity,  with respect to  participation in the profits
               and distributions, and in the assets, of the successor entity,
    

     o    the Investment  Affiliates expressly  acknowledge the successor entity
          as the holder of the Affiliate Investment Instruments,

   
     o    the  partnership  preferred  securities or any  partnership  successor
          securities are listed, or any partnership successor securities will be
          listed upon  notification  of  issuance,  on any  national  securities
          exchange  or other  organization  on which the  partnership  preferred
          securities, if so listed, are then listed,

     o    the merger, consolidation,  amalgamation or replacement does not cause
          the TOPrS or, in the event that ML Trust is  liquidated  in connection
          with a Trust Special Event,  the partnership  preferred  securities or
          any  partnership  successor  securities,   to  be  downgraded  by  any
          nationally recognized statistical rating organization,

     o    the  merger,  consolidation,  amalgamation  or  replacement  does  not
          adversely  affect the powers,  preferences and other special rights of
          the  holders  of  the  TOPrS  or  partnership   preferred  securities,
          including  any  partnership  successor  securities,  in  any  material
          respect,  other  than,  in  the  case  of  the  partnership  preferred
          securities,  with respect to any dilution of the holders'  interest in
          the new resulting entity,
    

     o    the successor entity has a purpose substantially  identical to that of
          ML Partnership,

     o    before the merger, consolidation,  amalgamation or replacement, ML&Co.
          has received an opinion of nationally  recognized  independent counsel
          to ML Partnership experienced in these matters to the effect that:

          (A)  the successor  entity will be treated as a partnership for United
               States Federal income tax purposes,

          (B)  the merger, consolidation,  amalgamation or replacement would not
               cause ML Trust to be  classified as an  association  taxable as a
               corporation for United States Federal income tax purposes,

          (C)  following the merger, consolidation, amalgamation or replacement,
               ML&Co.  and such successor  entity will be in compliance with the
               Investment  Company  Act  without  registering  as an  investment
               company, and

          (D)  the merger,  consolidation,  amalgamation or replacement will not
               adversely  affect the  limited  liability  of the  holders of the
               partnership preferred securities and

   
     o    ML&Co.  guarantees the  obligations of the successor  entity under the
          partnership  successor  securities at least to the extent  provided by
          the Partnership Guarantee.
    

BOOK-ENTRY AND SETTLEMENT

   
     If the partnership  preferred  securities are distributed to holders of the
TOPrS in connection with the involuntary or voluntary dissolution, winding-up or
liquidation  of ML Trust as a result of the occurrence of a Trust Special Event,
the partnership  preferred  securities will be issued in the form of one or more
global partnership securities registered in the name of DTC as the depository or
its nominee.  For a description  of DTC and the specific terms of the Depository
arrangements,  see  "Description  of the  TOPrS--Book-Entry  Only  Issuance--The
Depository Trust Company".  As of the date of this  prospectus,  the description
therein  of DTC's  book-entry  system  and  DTC's  practices  as they  relate to
purchases,  transfers,  notices and payments  with respect to the TOPrS apply in
all material respects to any partnership preferred securities represented by one
or more global partnership securities.
    

REGISTRAR, TRANSFER AGENT AND PAYING AGENT

   
     ML&Co.  will act as  registrar,  transfer  agent and  paying  agent for the
partnership  preferred  securities  for so  long  as the  partnership  preferred
securities are held by ML Trust or, if ML Trust is liquidated in connection with
a Trust  Special  Event,  for so long as the  partnership  preferred  securities
remain  in  book-entry  only  form.  In  the  event  the  partnership  preferred
securities  are  distributed  in  connection  with a Trust Special Event and the
book-entry system for the partnership  preferred securities is discontinued,  it
is anticipated  that The Chase  Manhattan Bank or one of its affiliates will act
as  registrar,  transfer  agent and paying agent for the  partnership  preferred
securities.

     Registration  of  transfers of  partnership  preferred  securities  will be
effected  without  charge by or on behalf of ML  Partnership,  but upon payment,
with the giving of such indemnity as ML Partnership  or ML&Co.  may require,  in
respect of any tax or other governmental charges that may be imposed in relation
to it.
    

     ML  Partnership  will not be required to register or cause to be registered
the  transfer  of  partnership   preferred  securities  after  such  partnership
preferred securities have been called for redemption.

MISCELLANEOUS

   
     ML&Co.  is authorized and directed to conduct its affairs and to operate ML
Partnership in such a way that:
    

     o    ML Partnership will not be deemed to be an investment company required
          to be registered under the Investment  Company Act or characterized as
          an  association  taxable as a corporation  for United  States  Federal
          income tax purposes,

     o    the Affiliate  Investment  Instruments will be treated as indebtedness
          of their  respective  issuers  for United  States  Federal  income tax
          purposes and

     o    ML Partnership  will not be treated as an association or as a publicly
          traded  partnership,  within the meaning of Section  7704 of the Code,
          taxable as a corporation.

   
In this connection,  ML&Co. as general partner is authorized to take any action,
not inconsistent with applicable law, the certificate of limited  partnership of
ML Partnership or the limited partnership  agreement,  that it determines in its
discretion to be necessary or desirable  for the  foregoing  purposes as long as
any  action  does not  adversely  affect  the  interests  of the  holders of the
partnership preferred securities.
    


<PAGE>


                    DESCRIPTION OF THE PARTNERSHIP GUARANTEE

   
     Set forth below is a summary of the  material  information  concerning  the
Partnership  Guarantee (the  "Partnership  Guarantee") that will be executed and
delivered  by  ML&Co.  for  the  benefit  of the  holders  from  time to time of
partnership preferred securities.  The summary is not complete and is subject in
all respects to the provisions of, and is qualified in its entirety by reference
to, the Partnership Guarantee,  which is filed as an exhibit to the registration
statement of which this prospectus is a part.  ML&Co.  will hold the Partnership
Guarantee  for  the  benefit  of  the  holders  of  the  partnership   preferred
securities.
    

TERMS OF THE PARTNERSHIP GUARANTEE

     Under the  Partnership  Guarantee,  ML&Co.  will  irrevocably  agree,  on a
subordinated basis to the extent set forth in this prospectus, to pay in full to
the holders of the  partnership  preferred  securities,  without  duplication of
amounts  previously paid by ML Partnership,  as and when due,  regardless of any
defense,  right of  set-off  or  counterclaim  that ML  Partnership  may have or
assert, the following payments (the "Partnership Guarantee Payments"):

     o    any  accumulated  and unpaid  distributions  that previously have been
          declared on ML Partnership  preferred  securities out of funds legally
          available for distribution,

     o    the  redemption  price  with  respect  to  any  partnership  preferred
          securities  called  for  redemption  by ML  Partnership  out of  funds
          legally available for that purpose, and

     o    upon a liquidation of ML Partnership, the lesser of:

          (A)  the aggregate of the  liquidation  preference and all accumulated
               and unpaid distributions on the partnership  preferred securities
               to the date of payment and

          (B)  the amount of assets of ML Partnership, after satisfaction of all
               liabilities,  remaining  available for distribution to holders of
               partnership   preferred   securities   in   liquidation   of   ML
               Partnership.

ML&Co.'s obligation to make a Partnership  Guarantee Payment may be satisfied by
direct payment of the required  amounts by ML&Co.  to the holders of partnership
preferred  securities  or by  causing  ML  Partnership  to pay these  amounts to
holders.

   
     The Partnership  Guarantee will be a guarantee on a subordinated basis with
respect to the partnership preferred securities from the time of issuance of the
partnership   preferred  securities  but  will  not  apply  to  any  payment  of
distributions  or the  redemption  price,  or to payments upon the  dissolution,
winding-up or termination of ML Trust, except to the extent ML Partnership shall
have funds available for these purposes.  If Investment  Affiliates,  including,
where applicable,  ML&Co., as guarantor, of the Affiliate Investment Instruments
in which ML  Partnership  invests  fail to make any  payment  in  respect of the
securities or, if applicable,  guarantees, ML Partnership may not declare or pay
dividends on the partnership preferred securities. In such event, holders of the
partnership  preferred securities would not be able to rely upon the Partnership
Guarantee  for payment of these  amounts.  Instead,  holders of the  partnership
preferred  securities will have the remedies  described in this prospectus under
"Description of the Partnership  Preferred  Securities--Partnership  Enforcement
Events", including the right to direct ML&Co. or the special representative,  as
the case may be, to enforce the covenant  restricting certain payments by ML&Co.
and Finance Subsidiaries. See "--Covenants of ML&Co." below.

     The  Guarantees,  when taken  together  with ML&Co.  Debenture and ML&Co.'s
obligations  to pay all  fees  and  expenses  of ML  Trust  and ML  Partnership,
constitute a guarantee to the extent set forth in this  prospectus by ML&Co.  of
the distribution,  redemption and liquidation payments payable to the holders of
the TOPrS. The Guarantees do not apply,  however, to current distributions by ML
Partnership unless and until distributions are declared by ML Partnership out of
funds legally available for payment or to liquidating distributions unless there
are assets available for payment in ML Partnership.
    

OBLIGATIONS OF ML&CO.

     Under the Partnership Guarantee, ML&Co. will agree that if:

     o    for any distribution  period, full distributions on a cumulative basis
          on any partnership preferred securities have not been paid or declared
          and set apart for payment,

   
     o    an event of  default  by any  Investment  Affiliate  in respect of any
          Affiliate Investment Instrument has occurred and is continuing, or
    

     o    ML&Co. is in default of its obligations under any Guarantee,

then, during that period,

     o    ML&Co.  may not declare or pay dividends on, make  distributions  with
          respect  to, or redeem,  purchase or  acquire,  or make a  liquidation
          payment with respect to, any of its capital stock or comparable equity
          interest, except for:

          o    dividends or distributions in shares of, or options,  warrants or
               rights to subscribe for or purchase shares of, its capital stock,
               and  conversions  or  exchanges of common stock of one class into
               common stock of another class,

   
          o    redemptions or purchases of any rights under the Rights Agreement
               and the issuance of preferred stock pursuant to those rights and
    

          o    purchases  or   acquisitions  by  ML&Co.  or  its  affiliates  in
               connection  with  transactions  effected by or for the account of
               customers of ML&Co.  or any of its  subsidiaries or in connection
               with  the  distribution  or  trading  of such  capital  stock  or
               comparable equity interest and

     o    ML&Co.  may not make,  permit any Finance  Subsidiary to make, or make
          any payments  that would enable any Finance  Subsidiary  to make,  any
          payment of any dividends on, any distribution  with respect to, or any
          redemption,  purchase  or other  acquisition  of,  or any  liquidation
          payment with respect to, any preferred  security or comparable  equity
          interest of any Finance Subsidiary.

EVENTS OF DEFAULT; ENFORCEMENT OF PARTNERSHIP GUARANTEE

     An event of default  under the  Partnership  Guarantee  will occur upon the
failure of ML&Co. to perform any of its payment or other obligations thereunder.

   
     The  holders  of a  majority  in  liquidation  amount  of  the  partnership
preferred  securities  have the right to direct  the time,  method  and place of
conducting any proceeding for any remedy available to the special representative
in respect of the  Partnership  Guarantee or to direct the exercise of any trust
or power  conferred  upon  the  special  representative  under  the  Partnership
Guarantee.  If the special  representative fails to enforce its rights under the
Partnership  Guarantee,  after a holder of partnership  preferred securities has
made a written  request,  such holder of  partnership  preferred  securities may
institute a legal  proceeding  directly  against  ML&Co.  to enforce the special
representative's   rights  under  the   Partnership   Guarantee   without  first
instituting   a  legal   proceeding   against  ML   Partnership,   the   special
representative or any other person or entity.  Notwithstanding the foregoing, if
ML&Co. has failed to make a guarantee payment, a holder of partnership preferred
securities may directly institute a proceeding against ML&Co. for enforcement of
the Partnership Guarantee for the payment.
    

STATUS OF THE PARTNERSHIP GUARANTEE; SUBORDINATION

     The Partnership Guarantee will constitute an unsecured obligation of ML&Co.
and  will  rank  subordinate  and  junior  in  right  of  payment  to all  other
liabilities of ML&Co. and will rank equally with the most senior preferred stock
issued from time to time by ML&Co.,  with similar guarantees issued by ML&Co. in
connection with

     o    the  $275,000,000   aggregate  liquidation  amount  of  7  3/4%  Trust
          Originated  Preferred  Securities  issued by Merrill  Lynch  Preferred
          Capital Trust I,

     o    the $300,000,000  aggregate  liquidation amount of 8% Trust Originated
          Preferred  Securities  issued by Merrill Lynch Preferred Capital Trust
          II,

     o    the $750,000,000  aggregate  liquidation amount of 7% Trust Originated
          Preferred  Securities  issued by Merrill Lynch Preferred Capital Trust
          III,

     o    the  $400,000,000   aggregate   liquidation   amount  of  7.12%  Trust
          Originated  Preferred  Securities  issued by Merrill  Lynch  Preferred
          Capital Trust IV,

     o    the  $850,000,000   aggregate   liquidation   amount  of  7.28%  Trust
          Originated  Preferred  Securities  issued by Merrill  Lynch  Preferred
          Capital Trust V and

     o    with any guarantee now or hereafter  entered into by ML&Co. in respect
          of any preferred stock of any other Finance Subsidiary.

   
     Accordingly,  the rights of the holders of partnership preferred securities
to  receive  payments  under the  Partnership  Guarantee  will be subject to the
rights of the holders of any  obligations of ML&Co.  that are senior in priority
to the obligations under the Partnership Guarantee.  Furthermore, the holders of
obligations of ML&Co.  that are senior to the obligations  under the Partnership
Guarantee,  including,  but not  limited  to,  obligations  constituting  senior
indebtedness,  will be  entitled  to the same  rights  upon  payment  default or
dissolution,  liquidation  and  reorganization  in  respect  of the  Partnership
Guarantee  that inure to the  holders  of senior  indebtedness  as  against  the
holders of the ML&Co. Debenture. The limited partnership agreement provides that
each holder of partnership preferred securities, by their acceptance,  agrees to
the subordination provisions and other terms of the Partnership Guarantee.
    

     The Partnership Guarantee will constitute a guarantee of payment and not of
collection.  That is,  the  guaranteed  party  may  directly  institute  a legal
proceeding against ML&Co. to enforce its rights under the Partnership  Guarantee
without instituting a legal proceeding against any other person or entity.

   
     The Partnership  Guarantee will be deposited with ML&Co. to be held for the
benefit of the holders of the partnership preferred securities.  In the event of
the appointment of a special  representative to, among other things, enforce the
Partnership  Guarantee,  the special  representative  may take possession of the
Partnership  Guarantee for that purpose.  If no special  representative has been
appointed to enforce the Partnership Guarantee,  ML&Co. has the right to enforce
the Partnership  Guarantee on behalf of the holders of the partnership preferred
securities.
    

AMENDMENTS AND ASSIGNMENT

     Except with respect to any changes that do not adversely  affect the rights
of holders of partnership preferred securities, in which case no consent will be
required,  the Partnership Guarantee may be amended only with the prior approval
of the  holders of not less than a majority  in  liquidation  preference  of the
outstanding  partnership  preferred  securities.  All  guarantees and agreements
contained  in the  Partnership  Guarantee  shall bind the  successors,  assigns,
receivers, trustees and representatives of ML&Co. and shall inure to the benefit
of the holders of the partnership preferred securities then outstanding.  Except
in connection with any permitted merger or consolidation of ML&Co.  with or into
another entity or any permitted  sale,  transfer or lease of ML&Co.'s  assets to
another entity in which the surviving corporation, if other than ML&Co., assumes
ML&Co.'s obligations under the Partnership Guarantee,  ML&Co. may not assign its
rights or delegate its obligations  under the Partnership  Guarantee without the
prior  approval of the holders of at least a majority  of the  aggregate  stated
liquidation preference of the partnership preferred securities then outstanding.

TERMINATION OF THE PARTNERSHIP GUARANTEE

     The  Partnership  Guarantee  will  terminate and be of no further force and
effect as to the partnership preferred securities upon:

     o    full  payment of the  redemption  price of all  partnership  preferred
          securities, or

     o    full  payment of the amounts  payable in  accordance  with the Limited
          Partnership Agreement upon liquidation of ML Partnership.

The  Partnership  Guarantee will continue to be effective or will be reinstated,
as the  case  may  be,  if at any  time  any  holder  of  partnership  preferred
securities must in accordance with the Delaware Limited  Partnership Act restore
payment  of any sums paid  under the  partnership  preferred  securities  or the
Partnership  Guarantee.  The Delaware  Limited  Partnership  Act provides that a
limited partner of a limited  partnership who wrongfully receives a distribution
may be liable to the limited partnership for the amount of such distribution.

GOVERNING LAW

     The  Partnership  Guarantee will be governed by and construed in accordance
with the internal laws of the State of New York.

                      UNITED STATES FEDERAL INCOME TAXATION

   
     In the opinion of Brown & Wood LLP, tax counsel to ML&Co.,  ML Trust and ML
Partnership  ("Tax Counsel"),  the following  summary  accurately  describes the
material United States Federal income tax  consequences  that may be relevant to
the purchase,  ownership and disposition of the TOPrS.  Unless otherwise stated,
this summary  deals only with the TOPrS held as capital  assets by United States
Persons  who  purchase  the  TOPrS  upon  original  issuance.  As  used  in this
prospectus,  a "United  States  Person"  means a person that is a (1) citizen or
resident of the United States, (2) a corporation or a partnership  (including an
entity treated as a corporation or partnership  for United States Federal income
tax  purposes)  created or organized in or under the laws of the United  States,
any  state  thereof  or the  District  of  Columbia  (unless,  in the  case of a
partnership,  Treasury  regulations are adopted that provide otherwise),  (3) an
estate whose income is subject to United States federal income tax regardless of
its  source,  or (4) a trust if a court  within  the  United  States  is able to
exercise  primary  supervision over the  administration  of the trust and one or
more  United  States  persons  have the  authority  to control  all  substantial
decisions of the trust.  Notwithstanding clause (4) of the previous sentence, to
the extent  provided in Treasury  regulations,  certain  trusts in  existence on
August 20, 1996, and treated as United States  persons prior to such date,  that
elect to continue to be treated as United  States  persons will also be a United
States  Person.  The  tax  treatment  of a  holder  may  vary  depending  on its
particular situation.
    

     This summary does not address all the tax consequences that may be relevant
to holders  who may be subject to special  tax  treatment,  such as banks,  real
estate investment trusts,  regulated investment companies,  insurance companies,
dealers in securities or currencies, tax-exempt investors, or foreign investors.
This summary does not include any  description  of any  alternative  minimum tax
consequences or the tax laws of any state or local  government or of any foreign
government  that may be  applicable  to the TOPrS.  This summary is based on the
Internal Revenue Code of 1986 as amended (the "Code"),  the Treasury regulations
promulgated under the Code and  administrative  and judicial  interpretations of
the Code, as of the date of this prospectus, all of which are subject to change,
possibly on a retroactive basis.

     The TOPrS are not being  marketed  to persons  that are not  United  States
Persons   ("non-United  States  Persons")  and,   consequently,   the  following
discussion  does not  discuss  the tax  consequences  that might be  relevant to
non-United  States  Persons.  Moreover,  in order  to  protect  ML Trust  and ML
Partnership from potential adverse consequences,  non-United States Persons will
be subject to  withholding  on  distributions  on the TOPrS at a rate of 30%. In
determining a holder's status,  the United States entity  otherwise  required to
withhold  taxes may rely on an IRS form  W-8,  an IRS form  W-9,  or a  holder's
certification  of its  non-foreign  status  signed  under  penalty  of  perjury.
Non-United  States  Persons should consult their tax advisors as to the specific
United States Federal income tax  consequences of the purchase,  ownership,  and
disposition of TOPrS.

     Tax  Counsel  has  advised  that there is no  authority  directly  on point
dealing  with  securities  similar  to the  TOPrS  or  transactions  of the type
described  in this  prospectus  and that the  opinions  of Tax  Counsel  are not
binding  on the  IRS or the  courts,  either  of  which  could  take a  contrary
position.  No  rulings  have been or will be sought  from the IRS.  Accordingly,
there can be no assurance that the IRS will not challenge the opinions expressed
in this tax  section  or that a court  would not  sustain a  challenge  to these
opinions.  Nevertheless, Tax Counsel has advised that it is of the view that, if
challenged,  the opinions  expressed in this tax section would be sustained by a
court with jurisdiction in a properly presented case.

   
     Holders  should  consult  their  tax  advisors  with  respect  to  the  tax
consequences  to them of the purchase,  ownership and  disposition of the TOPrS,
including the tax consequences under state, local,  foreign,  and other tax laws
and the possible  effects of changes in United States federal or other tax laws.
For a discussion  of the possible  redemption  of the TOPrS or redemption of the
partnership  preferred  securities upon the occurrence of certain tax events see
"Description of the TOPrS--Trust  Special Event Redemption or Distribution"  and
"Description of the Partnership Preferred  Securities--Partnership Special Event
Redemption" respectively.
    

CLASSIFICATION OF ML TRUST

   
     Tax Counsel is of the opinion that, under current law, and based on certain
representations  made by ML Trust as well as certain facts and assumptions  with
respect  to the  transaction  described  in this  prospectus,  ML Trust  will be
classified  for United States Federal income tax purposes as a grantor trust and
not as an association taxable as a corporation.  Accordingly,  for United States
Federal  income tax purposes,  each holder of the TOPrS will be  considered  the
owner of an undivided interest in the partnership  preferred  securities held by
ML  Trust.  As a result of this  treatment,  each  holder  of the TOPrS  will be
required  to  include  in its  gross  income  its  distributive  share of income
attributable  to ML  Partnership.  This  amount  will  generally  be  equal to a
holder's  allocable  share  of  amounts  accrued  on the  partnership  preferred
securities.  No amount  included  in income  with  respect  to the TOPrS will be
eligible for the corporate dividends-received  deduction.

CLASSIFICATION OF THE PARTNERSHIP
    

     Tax Counsel is of the opinion that, under current law, and based on certain
representations  made by the ML Trust as well as certain  facts and  assumptions
with respect to the  transaction  described in this  prospectus,  ML Partnership
will  be  classified  for  United  States  Federal  income  tax  purposes  as  a
partnership and not as an association or publicly traded partnership  taxable as
a corporation.

   
     Tax Counsel's opinion is based on certain factual  assumptions  relating to
the organization and operation of ML Partnership and is conditioned upon certain
representations  made by ML&Co.  as General  Partner  and ML  Partnership  as to
factual matters,  including the organization and the operation of ML Partnership
and the type and frequency of investments made by ML Partnership.

     ML&Co.  as general  partner has  represented  that it intends to operate ML
Partnership  in a manner that will enable ML  Partnership  to be classified as a
partnership for all future taxable  periods in which any  partnership  preferred
securities  remain  outstanding.  In particular,  under the limited  partnership
agreement,  the  general  partner  cannot  take any action  that would  cause ML
Partnership  to  constitute  a  "publicly  traded  partnership"   taxable  as  a
corporation.  Accordingly,  it is expected that ML Partnership  will continue to
qualify as a partnership and,  therefore,  will not constitute a publicly traded
partnership  taxable  as a  corporation  for all  taxable  years  in  which  any
partnership preferred securities remain outstanding.
    

CLASSIFICATION OF THE DEBENTURES

     ML Partnership,  ML&Co., the relevant Investment Affiliates and the holders
of the Trust  Securities  (by  acceptance  of a  beneficial  interest in a Trust
Security)  will agree to treat the  Debentures as  indebtedness  of the relevant
issuer for all United  States tax purposes.  In connection  with the issuance of
the Debentures,  Tax Counsel will issue its opinion that, under current law, and
based on certain representations,  facts and assumptions to be set forth in such
opinion,  the  Debentures  will be  classified as  indebtedness  of the relevant
issuer for United States Federal income tax purposes.

INCOME AND DEDUCTIONS

     Because ML Trust will be  classified  as a grantor  trust for United States
federal  income tax  purposes,  holders of TOPrS  will be  considered  to own an
undivided interest in the partnership  preferred securities held by ML Trust. As
a result of this  treatment,  a holder of TOPrS  will be  required  to take into
income their  proportionate  share of income  attributable to ML Partnership.  A
holder's  distributive share of income attributable to ML Partnership  generally
will be  substantially  equal  to the  amount  of the  cash  distributions  that
accumulate with respect to the TOPrS. Accordingly, if quarterly distributions on
the TOPrS are paid currently, the amount of income recognized by a holder during
a taxable year generally will be substantially  equal to the cash  distributions
received by the holder of the TOPrS.

     The nature and timing of the  income  that is  allocated  to holders of the
TOPrS  will,   however,   depend  on  the  United  States   Federal  income  tax
characterization  of the investments held by ML Partnership  during the relevant
period.  Because ML  Partnership  will be an accrual  basis  taxpayer for United
States Federal income tax purposes,  income will accrue on the TOPrS and will be
allocated to holders of the TOPrS on a daily accrual basis,  generally at a rate
that is  expected  to be  equal  to (and  that  will not be  greater  than)  the
distribution rate on the TOPrS, regardless of the holders' method of accounting.
Actual cash distributions on the TOPrS will not, however, be separately reported
as taxable income to the holders at the time they are received.

     If  distributions  on the  partnership  preferred  securities  are not made
currently,  the  corresponding  distributions  on the  TOPrS  will  not be  made
currently.  Because  ML  Partnership  is an  accrual  basis  taxpayer  it can be
expected that during a period in which  interest  payments on the  Debentures or
distributions on ML Partnership  preferred securities are deferred (for whatever
reason),  holders will generally recognize income in advance of their receipt of
any cash  distributions  with respect to their TOPrS.  The amount of income that
will be allocated to holders of TOPrS during any such deferral period will equal
their pro rata share of the amount of distributions  accruing on the partnership
preferred securities during the deferral period.

   
     ML  Partnership  does not presently  intend to make a Section 754 election.
Accordingly, a subsequent purchaser of the TOPrS who does not purchase the TOPrS
at  initial  issuance  will not be  permitted  to  adjust  the tax  basis in his
allocable  share of ML  Partnership's  assets so as to  reflect  any  difference
between  his  purchase  price for the  TOPrS  and his share of ML  Partnership's
underlying  tax basis in its assets.  As a result,  a holder of the TOPrS may be
required to report a larger or smaller  amount of income from  holding the TOPrS
than would otherwise be appropriate  based upon the holder's  purchase price for
the TOPrS.
    

RECEIPT OF PARTNERSHIP PREFERRED SECURITIES UPON LIQUIDATION OF ML TRUST

     Under certain circumstances, as described under the caption "Description of
the  TOPrS--Trust   Special  Event  Redemption  or  Distribution",   partnership
preferred  securities may be distributed to holders of The TOPrS in exchange for
their TOPrS and in liquidation of ML Trust.  Unless the  liquidation of ML Trust
occurs as a result of ML Trust being subject to United States Federal income tax
with  respect  to  income  accrued  or  received  on the  partnership  preferred
securities,  a  distribution  to holders under these  circumstances  would,  for
United States Federal income tax purposes,  be treated as a nontaxable  event to
each  holder.  Each  holder  would  receives  an  aggregate  tax  basis  in  the
partnership  preferred  securities equal to the holder's  aggregate tax basis in
its TOPrS  with a holding  period in the  partnership  preferred  securities  so
received in  liquidation  of ML Trust that would include the period during which
the TOPrS were held.  If,  however,  the  liquidation  of ML Trust were to occur
because ML Trust is subject to United States  Federal income tax with respect to
income  accrued  or  received  on  the  partnership  preferred  securities,  the
distribution  of partnership  preferred  securities to holders by ML Trust would
likely be a taxable event to each holder,  and a holder would  recognize gain or
loss as if the  holder had  exchanged  its TOPrS for the  partnership  preferred
securities it received upon the  liquidation  of ML Trust.  Gain or loss to each
holder would be equal to the difference between the holder's aggregate tax basis
in its TOPrS  surrendered in the exchange and the aggregate fair market value of
the partnership preferred securities received in the exchange.

REDEMPTION OF TOPrS FOR CASH

   
     Under certain circumstances, as described under the caption "Description of
the TOPrS--Mandatory Redemption", "Description of the TOPrS--Trust Special Event
Redemption  or  Distribution"  and  "Description  of the  Partnership  Preferred
Securities--Partnership Special Event Redemption", the General Partner may cause
ML Partnership to redeem the partnership preferred securities for cash, in which
event ML Trust shall simultaneously apply the cash received to redeem the TOPrS.
Under current law, this  redemption  of the TOPrS would  constitute,  for United
States Federal income tax purposes,  a taxable  disposition,  and a holder would
recognize gain or loss as if it sold the holder's  proportionate interest in the
redeemed  partnership  preferred  securities  for an amount of cash equal to the
proceeds received upon redemption. See "--Disposition of TOPrS".
    

DISPOSITION OF TOPrS

   
     A  holder  that  sells  TOPrS  will  recognize  gain or loss  equal  to the
difference between the amount realized on the sale of the TOPrS and the holder's
adjusted  tax  basis in the TOPrS  sold.  Gain or loss to the  seller  will be a
capital  gain or loss and will be a long-term  capital gain or loss if the TOPrS
have been held for more than one year at the time of the sale.  A holder will be
required to include  accumulated  but unpaid  distributions  on the  partnership
preferred  securities  through  the date of  disposition  in income as  ordinary
income, and to add this amount to the adjusted tax basis of its TOPrS.
    

     A holder's tax basis in its TOPrS generally will equal

     o    the amount paid by the holder for its TOPrS,

     o    increased  by the  amount  includible  in  income by the  holder  with
          respect to its TOPrS, and

     o    reduced by the  amount of cash or other  property  distributed  to the
          holder with respect to its TOPrS.

   
A holder who acquires  TOPrS at  different  prices may be required to maintain a
single aggregate  adjusted tax basis in all of his TOPrS and, upon sale or other
disposition  of some of his  TOPrS,  to  allocate  a pro  rata  portion  of such
aggregate  tax basis to the TOPrS sold,  rather than  maintaining a separate tax
basis in each TOPrS for  purposes  of  computing  gain or loss on a sale of that
TOPrS.
    

OTHER PARTNERSHIP PROVISIONS

     SECTION 708. Under Section 708 of the Code, ML  Partnership  will be deemed
to terminate for United States Federal income tax purposes if 50% or more of the
capital  and  profits  interests  in ML  Trust  are sold or  exchanged  within a
12-month period.  Pursuant to final Treasury  regulations issued on May 9, 1997,
if a deemed termination under Section 708 were to occur, ML Partnership would be
considered to have  contributed  its assets to a new  partnership  in return for
partnership interests therein and then to have distributed those new partnership
interests to the partners of the old partnership in liquidation thereof.

     SECTION 701. The Department of Treasury has promulgated  regulations  under
Section  701 of the Code that  generally  permit it to recast a  transaction  or
disregard a partnership  if a partnership  is formed or availed of in connection
with a transaction a principal  purpose of which is to reduce  substantially the
present value of the partners'  aggregate federal tax liability in a manner that
is inconsistent with the intent of the partnership  provisions of the Code or to
treat a partnership  as an aggregate of its partners as appropriate to carry out
the purpose of any provision of the Code or the Treasury regulations thereunder.
ML Partnership has been formed for, and will engage in,  activities  typical for
partnerships.  Although there is no precedent  that applies to the  transactions
contemplated herein, Tax Counsel believes that ML Partnership is not of the type
intended to fall within the scope of these regulations.

INFORMATION REPORTING AND BACKUP WITHHOLDING

     Income on the TOPrS will be reported to holders on an IRS Form 1099,  which
form should be mailed to holders of TOPrS by January 31 following  each calendar
year.  Payments  made on and proceeds from the sale of TOPrS may be subject to a
"back-up"  withholding  tax of 31%  unless  the  holder  complies  with  certain
identification requirements.  Any withheld amount generally will be allowed as a
credit  against the holder's  United  States  Federal  income tax,  provided the
required information is timely filed with the IRS.

NEW WITHHOLDING REGULATIONS

     On October 6, 1997, the Treasury  Department  issued new  regulations  (the
"New Regulations")  which make certain  modifications to the back-up withholding
and information  reporting rules described above. The New Regulations attempt to
unify  certification   requirements  and  modify  reliance  standards.  The  New
Regulations  will  generally be effective for payments  made after  December 31,
1999,  subject to certain transition rules.  Prospective  investors are urged to
consult their own tax advisors regarding the New Regulations.

                                  UNDERWRITING

   
     Subject to the terms and conditions set forth in a purchase  agreement,  ML
Trust has agreed to sell to each of the  underwriters  named below,  and each of
the  underwriters,  for whom  MLPF&S  and are  acting  as  representatives,  has
severally  agreed to purchase  the number of TOPrS set forth  opposite  its name
below. In the purchase agreement,  the several underwriters have agreed, subject
to the terms and conditions set forth therein, to purchase all the TOPrS offered
by this prospectus if any of the TOPrS are purchased. In the event of default by
an underwriter,  the purchase agreement provides that, in certain circumstances,
the purchase commitments of the non-defaulting  underwriters may be increased or
the purchase agreement may be terminated.

                                                              Number of Trust
                                 Underwriters             Preferred  Securities

Merrill Lynch, Pierce, Fenner & Smith
            Incorporated................................       ______________




              Total                                            ==============

     COMMISSION AND DISCOUNTS

     The  underwriters  propose  to offer the TOPrS to the  public at the public
offering price set forth on the cover page of this  prospectus,  and, to certain
dealers at that price less a concession not in excess of $ per TOPrS;  provided,
that the  concession  for sales of 10,000 or more TOPrS to any single  purchaser
will be $ per TOPrS. The underwriters may allow, and such dealers may reallow, a
discount not in excess of $ per TOPrS to certain brokers and dealers.  After the
TOPrS are released for sale to the public,  the offering  price,  concession and
discount  may be changed.  Proceeds to be received by ML&Co.  will be net of the
underwriting discount and expenses payable by ML&Co.

     In view of the  fact  that  the  proceeds  of the  sale of the  TOPrS  will
ultimately  be used to purchase the  investment  instruments  of ML&Co.  and its
subsidiaries,   the  purchase   agreement  provides  that  ML&Co.  will  pay  as
compensation to the underwriters,  an amount in immediately available funds of $
per TOPrS (or $ in the aggregate) for the accounts of the several  underwriters;
provided that, such compensation for sales of 10,000 or more TOPrS to any single
purchaser will be $ per TOPrS. Therefore, to the extent of any sales, the actual
amount of  underwriters'  compensation  will be less than the  aggregate  amount
specified in the preceding sentence.
    

     LISTING

   
     Application  will be made to list the  TOPrS on the  NYSE.  Trading  of the
TOPrS on the NYSE is  expected  to  commence  within a 30-day  period  after the
initial  delivery of the TOPrS. The  representatives  have advised ML Trust that
they intend to make a market in the TOPrS prior to the  commencement  of trading
on the NYSE. The representatives will have no obligation to make a market in the
TOPrS,  however,  and may cease market making activities,  if commenced,  at any
time.
    

     Before  this  offering  there has been no public  market for the TOPrS.  In
order to meet one of the  requirements  for listing  the TOPrS on the NYSE,  the
underwriters  will  undertake  to sell lots of 100 or more TOPrS to a minimum of
400 beneficial  holders,  that there will be at least one million units of TOPrS
outstanding and that the TOPrS will have a minimum market value of $4,000,000.

     PRICE STABILIZATION, SHORT POSITIONS AND PENALTY BIDS

     In connection with the offering,  the  underwriters are permitted to engage
in certain  transactions  that  stabilize  the market  price of the TOPrS.  Such
transactions consist of bids or purchases for the purpose of pegging,  fixing or
maintaining  the market price of the TOPrS.  If an  underwriter  creates a short
position in the TOPrS in connection  with the  offering,  i.e., if it sells more
TOPrS than are set forth on the cover page of this  prospectus,  the underwriter
may reduce  that short  position  by  purchasing  TOPrS in the open  market.  In
general, purchases of a security for the purpose of stabilization or to reduce a
short  position could cause the price of the security to be higher than it might
be in the absence of such purchases.

     The underwriters may also impose a penalty bid on certain  underwriters and
selling group members.  This means that if an underwriter purchases TOPrS in the
open market to reduce the underwriter's short position or to stabilize the price
of the TOPrS,  they may reclaim the amount of the  selling  concession  from the
underwriters  and  selling  group  members  who sold those  TOPrS as part of the
offering. The imposition of a penalty bid might have an effect on the price of a
security to the extent that it were to discourage resales of the security.

     Neither ML&Co.  nor any of the  underwriters  makes any  representation  or
prediction as to the direction or magnitude of any effect that the  transactions
described above may have on the price of the TOPrS. In addition,  neither ML&Co.
nor any of the underwriters makes any representation  that the underwriters will
engage in such transactions or that such transactions,  once commenced, will not
be discontinued without notice.

     MISCELLANEOUS

   
     ML  Trust,  ML&Co.,  and  ML  Partnership  have  agreed  to  indemnify  the
underwriters  against,  or contribute to payments that the  underwriters  may be
required to make in respect of, certain liabilities, including liabilities under
the Securities Act.
    

     Because MLPF&S, one of the underwriters in the offering, is an affiliate of
ML&Co. and a member of the National Association of Securities Dealers, Inc., the
offering of TOPrS will be conducted pursuant to the applicable  sections of Rule
2810 of the Conduct Rules of the NASD. The underwriters may not confirm sales to
any  discretionary  account without the prior specific  written  approval of the
customer.

     Certain of the  underwriters  and their  affiliates  engage in transactions
with, and perform  services for,  ML&Co.  in the ordinary course of business and
have engaged, and may in the future engage, in commercial banking and investment
banking  transactions with ML&Co.  MLPF&S may use this prospectus for offers and
sales  related to  market-making  transactions  in the TOPrS.  MLPF&S may act as
principal or agent in these  transactions,  and the sales will be made at prices
related to prevailing market prices at the time of sale.

                       WHERE YOU CAN FIND MORE INFORMATION

     We file reports,  proxy statements and other  information with the SEC. Our
SEC  filings  are also  available  over the  Internet  at the  SEC's web site at
http://www.sec.gov.  You may also read and copy any document we file by visiting
the SEC's public  reference  rooms in Washington,  D.C., New York, New York, and
Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further information
about the public reference rooms. You may also inspect our SEC reports and other
information at the New York Stock Exchange, Inc., 20 Broad Street, New York, New
York 10005.

     We have filed a  registration  statement  on Form S-3 with the SEC covering
the TOPrS and other securities. For further information on ML&Co. and the TOPrS,
you should refer to our registration statement and its exhibits. This prospectus
summarizes  material  provisions of contracts and other  documents that we refer
you to. Because the prospectus may not contain all the information  that you may
find  important,  you should  review the full text of these  documents.  We have
included copies of these documents as exhibits to our registration statement.

                INCORPORATION OF INFORMATION WE FILE WITH THE SEC

     The SEC allows us to incorporate by reference the  information we file with
them, which means:

     o    incorporated documents are considered part of the prospectus;

     o    we can disclose important information to you by referring you to those
          documents; and

     o    information  that we file with the SEC will  automatically  update and
          supersede this incorporated information.

     We  incorporate  by reference the  documents  listed below which were filed
with the SEC under the Exchange Act:

   
     o    annual report on Form 10-K for the year ended December 25, 1998; and

     o    current reports on Form 8-K dated December 28, 1998, January 19, 1999,
          February 17, 1999, February 18, 1999, February 22, 1999,  February 23,
          1999 and March 26, 1999.

     We also  incorporate by reference  each of the following  documents that we
will file with the SEC after the date of this prospectus  until this offering is
completed or after the date of this initial  registration  statement  and before
the effectiveness of the registration statement:
    

     o    reports filed under Sections 13(a) and (c) of the Exchange Act;

     o    definitive  proxy or information  statements filed under Section 14 of
          the  Exchange  Act in  connection  with any  subsequent  stockholders'
          meeting; and

     o    any reports filed under Section 15(d) of the Exchange Act.

   
     You should rely only on information  contained or incorporated by reference
in this prospectus. We have not, and MLPF&S has not, authorized any other person
to provide you with different information. If anyone provides you with different
or inconsistent  information,  you should not rely on it. We are not, and MLPF&S
is not, making an offer to sell these securities in any  jurisdiction  where the
offer or sale is not permitted.
    

     You should  assume that the  information  appearing in this  prospectus  is
accurate  as of the  date of  this  prospectus  only.  Our  business,  financial
condition and results of operations may have changed since that date.

     You  may  request  a copy  of any  filings  referred  to  above  (excluding
exhibits),  at no cost, by contacting us at the following address:  Mr. Lawrence
M. Egan,  Jr.,  Corporate  Secretary's  Office,  Merrill Lynch & Co.,  Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.

                                  LEGAL MATTERS

   
     Certain matters of Delaware law relating to the legality of the TOPrS,  the
validity of ML Trust Agreement, the formation of ML Trust and ML Partnership and
the  legality  under  state  law of the  TOPrS  and  the  partnership  preferred
securities  are  being  passed  upon by  Skadden,  Arps,  Slate,  Meagher & Flom
(Delaware),  special  Delaware  counsel to ML Trust, the Partnership and ML&Co..
The legality under state law of The Trust Guarantee,  the Partnership Guarantee,
the ML&Co. Debenture and the Investment Guarantees with respect to the Affiliate
Debentures  will be passed upon on behalf of ML Trust, ML Partnership and ML&Co.
by Brown & Wood LLP,  New  York,  New  York.  The  validity  of the  TOPrS,  the
partnership  preferred  securities and the Trust  Guarantee and the  Partnership
Guarantee will be passed upon on behalf of the  underwriters  by Skadden,  Arps,
Slate, Meagher & Flom LLP, New York, New York, counsel to the underwriters.
    

                                     EXPERTS

   
     The consolidated  financial  statements and the related financial statement
schedule  incorporated in this prospectus by reference from the Annual Report on
Form 10-K of Merrill  Lynch & Co.,  Inc. and  subsidiaries  have been audited by
Deloitte & Touche LLP, independent  auditors,  as stated in their reports (which
express an unqualified  opinion and which report on the  consolidated  financial
statements includes an explanatory paragraph for the change in accounting method
for certain  internal-use  software  development costs),  which are incorporated
herein by reference,  and have been so incorporated in reliance upon the reports
of such firm given upon their  authority as experts in accounting  and auditing.
The balance sheets of Merrill Lynch Preferred Funding VI, L.P. and Merrill Lynch
Preferred  Capital Trust VI as of December 25, 1998 included in this  prospectus
have also been  audited  by  Deloitte  & Touche  LLP and have been  included  in
reliance  upon such reports of Deloitte & Touche LLP given upon their  authority
as experts in accounting and auditing.
    


<PAGE>


   
                             INDEX OF DEFINED TERMS
    
DEFINED TERMS                                                           PAGE NO.
- -------------                                                           --------

   
Affiliate Debentures...................................................
Affiliate Investment Instruments.......................................
Business Day...........................................................
Change in Investment Company Act Law...................................
Code...................................................................
Eligible Institution...................................................
Finance Subsidiary.....................................................
Investment Affiliate...................................................
Investment Company Act.................................................
Investment Guarantee...................................................
  ML&Co................................................................
ML&Co. Debenture.......................................................
ML Partnership.........................................................
MLPF&S.................................................................
Moody's................................................................
Partnership Enforcement Event..........................................
Partnership Guarantee..................................................
Partnership Guarantee Payments.........................................
Partnership Investment Company Event...................................
Partnership Special Event..............................................
Partnership Tax Event..................................................
Rights Agreement.......................................................
S&P....................................................................
Special Event..........................................................
Tax Action.............................................................
Tax Counsel............................................................
TOPrS..................................................................
Trust Enforcement Event................................................
Trust Guarantee........................................................
Trust Guarantee Payments...............................................
Trust Investment Company Event.........................................
Trust Securities.......................................................
Trust Special Event....................................................
Trust Tax Event........................................................
United States Person...................................................
    

<PAGE>
                          INDEX TO FINANCIAL STATEMENTS

                                                                        PAGE NO.
                                                                        --------

MERRILL LYNCH PREFERRED FUNDING VI, L.P.

     Independent Auditors' Report.......................................  F-2

     Balance Sheet......................................................  F-3

     Note to Balance Sheet..............................................  F-3

MERRILL LYNCH PREFERRED CAPITAL TRUST VI

     Independent Auditors' Report.......................................  F-4

     Balance Sheet......................................................  F-5

     Note to Balance Sheet..............................................  F-5


<PAGE>
                          INDEPENDENT AUDITORS' REPORT

To the General Partner and Initial Limited Partner of
   Merrill Lynch Preferred Funding VI, L.P.

   
     We have audited the  accompanying  balance sheet of Merrill Lynch Preferred
Funding VI, L.P. (the "Partnership") as of December 25, 1998. This balance sheet
is the responsibility of the Partnership's management.  Our responsibility is to
express an opinion on this balance sheet based on our audit.
    

     We conducted  our audit in  accordance  with  generally  accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable  assurance  about  whether  the  balance  sheet  is free of  material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the  amounts  and  disclosures  in the  balance  sheet.  An audit also  includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall  balance sheet  presentation.  We
believe that our audit of the balance sheet provides a reasonable  basis for our
opinion.

   
     In our opinion, the balance sheet referred to above presents fairly, in all
material respects,  the financial position of the Partnership as of December 25,
1998, in conformity with generally accepted accounting principles.


/s/  Deloitte & Touche LLP
New York, New York

January 28, 1999
    

<PAGE>
                                  BALANCE SHEET
                   OF MERRILL LYNCH PREFERRED FUNDING VI, L.P.

   
                                December 25, 1998

Assets.................................................................$   --
                                                                       =========
    
Partnership Securities
   
   Limited partner interest............................................   $  85
   General partner interest............................................      15

                                                                            100

Less: Receivables from partners for subscribed partnership interests...    (100)
                                                                       =========
                                                                         $  --
                                                                       =========
    


   
        NOTE TO BALANCE SHEET OF MERRILL LYNCH PREFERRED FUNDING VI, L.P.

     Merrill Lynch  Preferred Funding VI, L.P. (the  "Partnership") is a limited
partnership   that  was  formed  under  the  Delaware  Revised  Uniform  Limited
Partnership  Act on December 7, 1998 for the  exclusive  purposes of  purchasing
certain  eligible debt  instruments of Merrill Lynch & Co., Inc.  ("ML&Co.") and
wholly owned  subsidiaries of ML&Co.  (the "Affiliate  Investment  Instruments")
with the  proceeds  from  the  sale of  Partnership  Preferred  Securities  (the
"Partnership  Preferred Securities") to Merrill Lynch Preferred Capital Trust VI
(the "Trust") and a capital contribution from ML&Co. in exchange for the general
partnership  interest  in  the  Partnership   (collectively,   the  "Partnership
Proceeds").

     The Partnership   Preferred  Securities will be redeemable for cash, at the
option  of the  Partnership,  in whole or in part,  from  time to time,  after a
certain  date to be  determined.  Except as provided in the Limited  Partnership
Agreement and  Partnership  Preferred  Securities  Guarantee  Agreement,  and as
otherwise provided by law, the holders of the Partnership  Preferred  Securities
will have no voting rights.

     The  Partnership  Proceeds  will   be   used  initially  to  purchase  debt
instruments  from ML&Co.  and certain  domestic  wholly  owned  subsidiaries  of
ML&Co., retaining 1% in unaffiliated debt securities. The Partnership shall have
a perpetual existence subject to certain  termination  events.  ML&Co. serves as
the sole general partner of the Partnership.  ML&Co., in its capacity as General
Partner of the  Partnership,  has agreed to pay all fees and expenses related to
the organization and operations of the Partnership (including any taxes, duties,
assessments  or government  charges of whatever  nature (other than  withholding
taxes) imposed by the United States or any other domestic taxing  authority upon
the Partnership) and the offering of the Partnership Preferred Securities and be
responsible for all debts and other  obligations of the Partnership  (other than
with respect to the Partnership Preferred  Securities).  The General Partner has
agreed to indemnify certain officers and agents of the Partnership.
    


<PAGE>


   
                          INDEPENDENT AUDITORS' REPORT

To  the Trustees of
    
  Merrill Lynch Preferred Capital Trust VI

   
     We have audited the  accompanying  balance sheet of Merrill Lynch Preferred
Capital  Trust VI (the  "Trust") as of December 25, 1998.  This balance sheet is
the responsibility of the Trust's  management.  Our responsibility is to express
an opinion on this balance sheet based on our audit.
    

     We conducted  our audit in  accordance  with  generally  accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable  assurance  about  whether  the  balance  sheet  is free of  material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the  amounts  and  disclosures  in the  balance  sheet.  An audit also  includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall  balance sheet  presentation.  We
believe that our audit of the balance sheet provides a reasonable  basis for our
opinion.

   
     In our opinion, the balance sheet referred to above presents fairly, in all
material respects,  the financial position of the Trust as of December 25, 1998,
in conformity with generally accepted accounting principles.


/s/  Deloitte & Touche LLP
New York, New York

January 28, 1999
    

<PAGE>
                                BALANCE SHEET OF
                    MERRILL LYNCH PREFERRED CAPITAL TRUST VI

   
                                December 25, 1998

Assets..................................................................   $ 0
                                                                            ----


Trust securities........................................................   $ 0
                                                                            ----
    


       NOTE TO BALANCE SHEET OF MERRILL LYNCH PREFERRED CAPITAL TRUST VI

   
     Merrill  Lynch  Preferred  Capital  Trust VI (the  "Trust")  is a statutory
business  trust  formed  on  December  7,  1998  under  the laws of the State of
Delaware  for  the  exclusive  purposes  of (i)  issuing  the  Trust  Originated
Preferred  Securities (the "TOPrS") and the common securities (together with the
TOPrS,  the "Trust  Securities")  representing  undivided  beneficial  ownership
interests in the  assets of the Trust,  (ii)  purchasing  Partnership  Preferred
Securities (the  "Partnership  Preferred  Securities")  representing the limited
partnership   interests  of  Merrill  Lynch  Preferred  Funding  VI,  L.P.  (the
"Partnership")  with the  proceeds  from the sale of the Trust  Securities,  and
(iii) engaging in only those other activities  necessary or incidental  thereto.
The Trust has a perpetual  existence,  subject to certain  termination events as
provided in the  Declaration  of Trust under which it was formed.  Subsequent to
December  25,  1998,  the Trust  intends to issue and sell its TOPrS in a public
offering  and to issue and sell its common  securities  to Merrill  Lynch & Co.,
Inc. ("ML&Co"). No TOPrS have been issued as of December 25, 1998.
    

     The proceeds from the Trust's sale of the Trust  Securities will be used to
purchase  the  Partnership  Preferred  Securities  from  the  Partnership.   The
Partnership  Preferred  Securities will be redeemable for cash, at the option of
the Partnership, in whole or in part, from time to time, after a certain date to
be determined.  Upon any redemption of the Partnership Preferred Securities, the
TOPrS will be redeemed, in whole or in part, as applicable. Holders of the TOPrS
will have  limited  voting  rights and will not be  entitled to vote to appoint,
remove or replace,  or to increase or decrease  the number of,  trustees,  which
voting rights are vested exclusively in the holder of the common securities.

     ML&Co.  will be obligated to pay  compensation  to the  underwriters of the
offering  of the TOPrS.  ML&Co.  will pay all fees and  expenses  related to the
organization  and  operations  of  the  Trust  (including  any  taxes,   duties,
assessments or governmental  charges of whatever nature (other than  withholding
taxes) imposed by the United States or any other domestic taxing  authority upon
the Trust) and the  offering of the TOPrS and be  responsible  for all debts and
other  obligations of the Trust (other than the Trust  Securities).  ML&Co.  has
also agreed to indemnify the Trustees and certain other persons.


<PAGE>

================================================================================

                                     [LOGO]















                    Merrill Lynch Preferred Capital Trust VI

                     % Trust Originated Preferred Securities
                                     "TOPrS"
                        Liquidation Amount $25 per TOPrS
            guaranteed to the extent described in this prospectus by
                            Merrill Lynch & Co., Inc.

                                ----------------

                                   PROSPECTUS

                                ----------------



                               Merrill Lynch & Co.

                                             , 199

================================================================================

<PAGE>
   
Information contained in this prospectus supplement is not complete and may be
changed. We may not sell these securities until the registration statement filed
with the Securities and Exchange Commission is effective. This prospectus
supplement and the accompanying prospectus is not an offer to sell these
securities and it is not soliciting an offer to buy these securities in any
state where the offer or sale is not permitted.
    
                              Subject to Completion
   
             Preliminary Prospectus Supplement dated March 29, 1999
    

PROSPECTUS SUPPLEMENT
- ---------------------

(TO PROSPECTUS DATED             , 1999)

                           $
                                     [LOGO]

                            MERRILL LYNCH & CO., INC.
                           MEDIUM-TERM NOTES, SERIES B
                   DUE NINE MONTHS OR MORE FROM DATE OF ISSUE

                         -------------------------------

THE NOTES:

o    We will offer notes from time to       o   The notes may bear interest at
     time and specify the terms and             fixed or floating rates or may
     conditions of each issue of notes          not bear any interest.  If the
     in a pricing supplement.                   notes bear interest at a
                                                floating rate, the floating
o    The notes will be senior unsecured         rate may be based on one or
     debt securities of ML&Co.                  more indices or formulas plus
                                                or minus a fixed amount or
o    The notes will have stated maturities      multiplied by a factor.
     of nine months or more from the date
     they are originally issued.            o   We will specify whether the
                                                notes can be redeemed or repaid
o    We will pay amounts due on the notes       before their maturity and
     in U.S. dollars or any other               whether they are subject to
     consideration described in the             mandatory redemption,
     applicable pricing supplement.             redemption at the option of
                                                ML&Co. or repayment at the
                                                option of the holder of the
                                                notes.


                 INVESTING IN THE NOTES INVOLVES CERTAIN RISKS.
                         SEE "RISK FACTORS" ON PAGE S-3.

     Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if this
prospectus supplement, the accompanying prospectus or any pricing supplement is
truthful or complete. Any representation to the contrary is a criminal offense.

<TABLE>
<CAPTION>

                                                                  Agent's Discounts        Proceeds, before expenses, to
                                   Public Offering Price           And Commissions           Merrill Lynch & Co., Inc.
                                   ---------------------          -----------------        -----------------------------
<S>                                <C>                            <C>                      <C>
Per note...................                     100%                  .05%-.60%                  99.95%-99.40%
Total(1)...................             $_00,000,000                   $     -$                    $       -$
</TABLE>

(1) Or the equivalent in one or more foreign or composite currencies.

     We may sell notes to the agent referred to below as principal for resale at
varying or fixed offering prices or through the agent as agent using its
reasonable efforts on our behalf. We may also sell notes without the assistance
of the agent, whether acting as principal or as agent.

     If we sell other securities referred to in the accompanying prospectus, the
amount of notes that we may offer and sell under this prospectus supplement may
be reduced.

                         -------------------------------

                               Merrill Lynch & Co.

                         -------------------------------
            The date of this prospectus supplement is         , 1999.

<PAGE>
                                TABLE OF CONTENTS

                              PROSPECTUS SUPPLEMENT

                                                                            PAGE
                                                                            ----

   
Risk Factors............................................................     S-3
    
Description of the Notes................................................     S-5
United States Federal Income Taxation...................................    S-25
Plan of Distribution....................................................    S-32
Validity of the Notes...................................................    S-33

                                   PROSPECTUS

                                                                            PAGE
                                                                            ----

Merrill Lynch & Co., Inc................................................
Use of Proceeds.........................................................
Ratio of Earnings to Fixed Charges and
  Ratio of Earnings to Combined Fixed Charges
  and Preferred Stock Dividends.........................................
The Securities..........................................................
Description of Debt Securities..........................................
Description of Debt Warrants............................................
Description of Currency Warrants........................................
Description of Index Warrants...........................................
Description of Preferred Stock..........................................
Description of Depositary Shares........................................
Description of Preferred Stock Warrants.................................
Description of Common Stock.............................................
Description of Common Stock Warrants....................................
Plan of Distribution....................................................
Where You Can Find More Information.....................................
Incorporation of Information We File With the SEC.......................
Experts.................................................................

     References in this prospectus supplement to "ML&Co.", "we", "us" and "our"
are to Merrill Lynch & Co., Inc.

     References in this prospectus supplement to "MLPF&S" are to the agent,
Merrill Lynch, Pierce, Fenner & Smith Incorporated.

<PAGE>
                                  RISK FACTORS

     Your investment in the notes involves certain risks. In consultation with
your own financial and legal advisers, you should carefully consider, among
other matters, the following discussion of risks before deciding whether an
investment in the notes is suitable for you. The notes are not an appropriate
investment for you if you are unsophisticated with respect to the significant
components of their relationships.

STRUCTURE RISKS OF NOTES INDEXED TO INTEREST RATE, CURRENCY OR OTHER INDICES OR
FORMULAS

     If you invest in notes indexed to one or more interest rate, currency or
other indices or formulas, there will be significant risks not associated with a
conventional fixed rate or floating rate debt security. These risks include
fluctuation of the indices or formulas and the possibility that you will receive
a lower, or no, amount of principal, premium or interest and at different times
than you expected. We have no control over a number of matters, including
economic, financial and political events, that are important in determining the
existence, magnitude and longevity of these risks and their results. In
addition, if an index or formula used to determine any amounts payable in
respect of the notes contains a multiplier or leverage factor, the effect of any
change in that index or formula will be magnified. In recent years, values of
certain indices and formulas have been volatile and volatility in those and
other indices and formulas may be expected in the future. However, past
experience is not necessarily indicative of what may occur in the future.

REDEMPTION MAY ADVERSELY AFFECT YOUR RETURN ON THE NOTES

     If your notes are redeemable at our option or are otherwise subject to
mandatory redemption, we may, in the case of optional redemption, or must, in
the case of mandatory redemption, choose to redeem your notes at times when
prevailing interest rates may be relatively low. Accordingly, you generally will
not be able to reinvest the redemption proceeds in a comparable security at an
effective interest rate as high as that of the notes.

THERE MAY BE AN UNCERTAIN TRADING MARKET FOR YOUR NOTES; MANY FACTORS AFFECT THE
TRADING VALUE OF YOUR NOTES

     We cannot assure you a trading market for your notes will ever develop or
be maintained. Many factors independent of our creditworthiness may affect the
trading market of your notes. These factors include:

     o    the complexity and volatility of the index or formula applicable to
          the notes,

     o    the method of calculating the principal, premium and interest in
          respect of the notes,

     o    the time remaining to the maturity of the notes,

     o    the outstanding amount of the notes,

     o    the redemption features of the notes,

     o    the amount of other securities linked to the index or formula
          applicable to the notes, and

     o    the level, direction and volatility of market interest rates
          generally.

     In addition, because some notes were designed for specific investment
objectives or strategies, these notes will have a more limited trading market
and experience more price volatility. There may be a limited number of buyers
for these notes. This may affect the price you receive for these notes or your
ability to sell these notes at all. You should not purchase notes unless you
understand and know you can bear the related investment risks.

OUR CREDIT RATINGS MAY NOT REFLECT ALL RISKS OF AN INVESTMENT IN THE NOTES

     Our credit ratings are an assessment of our ability to pay our obligations.
Consequently, real or anticipated changes in our credit ratings will generally
affect the market value of your notes. Our credit ratings, however, may not
reflect the potential impact of risks related to structure, market or other
factors discussed above on the value of your notes.


<PAGE>

   
                            DESCRIPTION OF THE NOTES

     The notes will be issued as a series of debt securities under a senior
indenture, dated as of October 1, 1993, as amended (the "1993 Indenture"),
between ML&Co. and The Chase Manhattan Bank, as trustee. The term "senior debt
securities," as used in this prospectus supplement, refers to all securities
issued and issuable from time to time under ML&Co.'s senior indentures and
includes the notes. The senior debt securities and ML&Co.'s senior indentures
are more fully described in the accompanying prospectus. The following summary
of the material provisions of the notes and of the 1993 Indenture is not
complete and is qualified in its entirety by reference to the 1993 Indenture, a
copy of which has been filed as an exhibit to the registration statement of
which this prospectus supplement and the accompanying prospectus are a part.
    

     You should rely only on the information contained or incorporated by
reference in this prospectus supplement, the accompanying prospectus and any
pricing supplement. Neither we nor MLPF&S has authorized any other person to
provide you with different or additional information. If anyone provides you
with different or additional information, you should not rely on it. Neither we
nor MLPF&S is making an offer to sell these securities in any jurisdiction where
the offer or sale is not permitted. You should assume that the information
contained or incorporated by reference in this prospectus supplement, the
accompanying prospectus and any pricing supplement is accurate only as of the
date on the front cover of the applicable pricing supplement.

   
     The following description of notes will apply unless otherwise specified in
an applicable pricing supplement.
    

TERMS OF THE NOTES

   
     All senior debt securities, including the notes, issued and to be issued
under ML&Co.'s senior indentures will be unsecured general obligations of ML&Co.
and will rank equally with all other unsecured and unsubordinated indebtedness
of ML&Co. from time to time outstanding. Because ML&Co. is a holding company,
the right of ML&Co. and its creditors, including the holders of the notes, to
participate in any distribution of the assets of any subsidiary upon its
liquidation or reorganization or otherwise is necessarily subject to the prior
claims of creditors of that subsidiary, except to the extent that a bankruptcy
court may recognize the claims of ML&Co. itself as a creditor of that
subsidiary. In addition, dividends, loans and advances to ML&Co. from certain
subsidiaries, including MLPF&S, are restricted by net capital requirements under
the Securities Exchange Act of 1934, as amended, and under rules of certain
exchanges and other regulatory bodies.

     ML&Co.'s senior indentures do not limit the aggregate principal amount of
senior debt securities which ML&Co. may issue. ML&Co. may issue its senior debt
securities from time to time as a single series or in two or more separate
series up to the aggregate principal amount from time to time authorized by
ML&Co. for each series. ML&Co. may, from time to time, without the consent of
the holders of the notes, provide for the issuance of notes or other senior debt
securities under its senior indentures in addition to the $ aggregate principal
amount of notes offered by this prospectus supplement. As of December 25, 1998,
ML&Co. had $ billion aggregate principal amount of notes issued and outstanding.
The aggregate principal amount of notes which may be offered and sold by this
prospectus supplement may be reduced by the sale by ML&Co. of other securities
under the registration statement of which this prospectus supplement and the
accompanying prospectus are a part.
    

     The notes will be offered on a continuing basis and will mature on a day
nine months or more from the date of issue, as selected by the purchaser and
agreed to by ML&Co. Interest-bearing notes will bear interest at either fixed or
floating rates as specified in the applicable pricing supplement. Notes may be
issued at significant discounts from their principal amount payable at stated
maturity, or on any date before the stated maturity date on which the principal
or an installment of principal of a note becomes due and payable, whether by the
declaration of acceleration, call for redemption at the option of ML&Co.,
repayment at the option of the holder or otherwise (the stated maturity date or
such prior date, as the case may be, is referred to as, a "Maturity"). Some
notes may not bear interest.

   
     Unless otherwise indicated in a note and in the applicable pricing
supplement, the notes will be denominated in United States dollars and ML&Co.
will make payments of principal of, and premium, if any, and interest on, the
notes in United States dollars.

     Interest rates, interest rate formulae and other variable terms of the
notes are subject to change by ML&Co. from time to time, but no change will
affect any note already issued or as to which ML&Co. has accepted an offer to
purchase.

     Each  note  will  be  issued  in  fully  registered  book-entry  form  or
certificated  form,  in  denominations  of $1,000 and  integral  multiples  of
$1,000, unless otherwise specified in the applicable pricing supplement. Notes
in  book-entry   form  may  be   transferred   or  exchanged  only  through  a
participating  member of The Depository  Trust Company,  also known as DTC, or
any other depository as is identified in an applicable pricing supplement. See
"-Book-Entry Notes". Registration of transfer of notes in certificated form
will be made at the  corporate  trust office of the trustee.  There will be no
service  charge for any  registration  of transfer  or exchange of notes,  but
ML&Co.  may  require  payment  of a sum  sufficient  to cover any tax or other
governmental charge payable in connection with any transfer or exchange, other
than exchanges pursuant to the 1993 Indenture not involving any transfer.

     ML&Co. will make payments of principal of, and premium and interest, if
any, on notes in book-entry form through the trustee to the depository or its
nominee. See "Notes in Book-Entry Form". Unless otherwise specified in the
applicable pricing supplement, a beneficial owner of notes in book-entry form
that are denominated in a currency other than United States dollars (a
"Specified Currency") electing to receive payments of principal or any premium
or interest in that Specified Currency must notify the participant of DTC
through which its interest is held on or before the applicable regular record
date, in the case of a payment of interest, and on or before the sixteenth day,
whether or not a Business Day, as defined below, before its stated maturity, in
the case of principal or premium, of the beneficial owner's election to receive
all or a portion of any payment in a Specified Currency. The participant must
notify the depository of any election on or before the third Business Day after
the regular record date. The depository will notify the paying agent of the
election on or before the fifth Business Day after the regular record date. If
complete instructions are received by the participant and forwarded to the
depository, and forwarded by the depository to the paying agent, on or before
the relevant dates, the beneficial owner of the notes in book-entry form will
receive payments in the Specified Currency.

     In the case of notes in certificated form, ML&Co. will make payment of
principal or premium, if any, at the Maturity of each note in immediately
available funds upon presentation of the note and, in the case of any repayment
on an optional repayment date, upon submission of a duly completed election form
if and as required by the provisions described below, at the corporate trust
office of the trustee in the Borough of Manhattan, The City of New York, or at
any other place as ML&Co. may designate. Payment of interest due at Maturity
will be made to the person to whom payment of the principal of the note in
certificated form will be made. Payment of interest due on notes in certificated
form other than at Maturity will be made at the corporate trust office of the
trustee or, at the option of ML&Co., may be made by check mailed to the address
of the person entitled to receive payment as the address shall appear in the
security register. Notwithstanding the immediately preceding sentence, a holder
of $1,000,000 or more in aggregate principal amount of notes in certificated
form, whether having identical or different terms and provisions, having the
same interest payment dates will, at the option of ML&Co., be entitled to
receive interest payments, other than at Maturity, by wire transfer of
immediately available funds if appropriate wire transfer instructions have been
received in writing by the trustee not less than 15 days prior to the applicable
interest payment date. Any wire instructions received by the trustee shall
remain in effect until revoked by the holder.
    

     "Business Day" means any day, other than a Saturday or Sunday, that is
neither a legal holiday nor a day on which commercial banks are authorized or
required by law, regulation or executive order to close in The City of New York;
provided, however, that, with respect to non-United States dollar-denominated
notes, the day is also not a day on which commercial banks are authorized or
required by law, regulation or executive order to close in the Principal
Financial Center, as defined below, of the country issuing the Specified
Currency or, if the Specified Currency is Euro, the day is also a day on which
the Trans-European Automated Real-time Gross Settlement Express Transfer
(TARGET) System is open; provided, further, that, with respect to notes as to
which LIBOR is an applicable Interest Rate Basis, the day is also a London
Business Day. "London Business Day" means a day on which commercial banks are
open for business, including dealings in the Index Currency, as defined below,
in London.

     "Principal Financial Center" means, unless otherwise specified in the
applicable pricing supplement,

     (1)  the capital city of the country issuing the Specified Currency, except
          that with respect to United States dollars, Australian dollars,
          Canadian dollars, Deutsche marks, Dutch guilders, South African rand
          and Swiss francs, the "Principal Financial Center" will be The City of
          New York, Sydney and Melbourne, Toronto, Frankfurt, Amsterdam,
          Johannesburg and Zurich, respectively, or

     (2)  the capital city of the country to which the LIBOR Currency relates,
          except that with respect to United States dollars, Canadian dollars,
          Deutsche marks, Dutch guilders, Portuguese escudos, South African rand
          and Swiss francs, the "Principal Financial Center" will be The City of
          New York, Toronto, Frankfurt, Amsterdam, London, Johannesburg and
          Zurich, respectively.

TRANSACTION AMOUNT

     Interest rates offered by ML&Co. with respect to the notes may differ
depending upon, among other things, the aggregate principal amount of notes
purchased in any transaction. ML&Co. may offer notes with similar variable terms
but different interest rates concurrently at any time. ML&Co. may also
concurrently offer notes having different variable terms to different investors.

REDEMPTION AT THE OPTION OF ML&CO.

   
     The notes will not be subject to any sinking fund. ML&Co. may redeem the
notes at its option prior to their stated maturity only if an initial redemption
date is specified in the applicable notes and in the applicable pricing
supplement. If so indicated in the applicable pricing supplement, ML&Co. may
redeem the notes at its option on any date on and after the applicable initial
redemption date specified in the applicable pricing supplement. On and after the
initial redemption date, if any, ML&Co. may redeem the related note at any time
in whole or from time to time in part at its option at the applicable redemption
price referred to below together with interest on the principal of the
applicable note payable to the redemption date, on notice given, unless
otherwise specified in the applicable pricing supplement, not more than 60 nor
less than 30 days before the redemption date. ML&Co. will redeem the notes in
increments of $1,000, provided that any remaining principal amount will be an
authorized denomination of the applicable note. Unless otherwise specified in
the applicable pricing supplement, the redemption price with respect to a note
will initially mean a percentage, the initial redemption percentage, of the
principal amount of the note to be redeemed specified in the applicable pricing
supplement and shall decline at each anniversary of the initial redemption date
by a percentage specified in the applicable pricing supplement, of the principal
amount to be redeemed until the redemption price is 100% of the principal
amount.
    

REPAYMENT AT THE OPTION OF THE HOLDER

   
     If so indicated in an applicable pricing supplement, ML&Co. will repay the
notes in whole or in part at the option of the holders of the notes on any
optional repayment date specified in the applicable pricing supplement. If no
optional repayment date is indicated with respect to a note, it will not be
repayable at the option of the holder before its stated maturity. Any repayment
in part will be in an amount equal to $1,000 or integral multiples of $1,000,
provided that any remaining principal amount will be an authorized denomination
of the applicable note. The repurchase price for any note so repurchased will be
100% of the principal amount to be repaid, together with interest on the
principal of the applicable note payable to the date of repayment. For any note
to be repaid, the trustee must receive, at its office maintained for such
purpose in the Borough of Manhattan, The City of New York, currently the
corporate trust office of the trustee, not more than 60 nor less than 30 days
before the optional repayment date:
    

     o    in the case of a note in certificated form, the note and the form
          entitled "Option to Elect Repayment" duly completed, or

   
     o    in the case of a note in book-entry form, instructions to that effect
          from the applicable beneficial owner of the notes to the depository
          and forwarded by the depository.

Notices of elections from a holder to exercise the repayment option must be
received by the trustee by 5:00 p.m., New York City time, on the last day for
giving such notice. Exercise of the repayment option by the holder of a note
will be irrevocable.

     Only the depository may exercise the repayment option in respect of global
securities representing notes in book-entry form. Accordingly, beneficial owners
of global securities that desire to have all or any portion of the notes in
book-entry form represented by global securities repaid must instruct the
participant through which they own their interest to direct the depository to
exercise the repayment option on their behalf by forwarding the repayment
instructions to the trustee as discussed above. In order to ensure that the
instructions are received by the trustee on a particular day, the applicable
beneficial owner must so instruct the participant through which it owns its
interest before that participant's deadline for accepting instructions for that
day. Different firms may have different deadlines for accepting instructions
from their customers. Accordingly, beneficial owners of notes in book-entry form
should consult the participants through which they own their interest for the
respective deadlines. All instructions given to participants from beneficial
owners of notes in book-entry form relating to the option to elect repayment
will be irrevocable. In addition, at the time instructions are given, each
beneficial owner will cause the participant through which it owns its interest
to transfer its interest in the global security or securities representing the
related notes in book-entry form, on the depository's records, to the trustee.
See "-Book-Entry Notes".
    

     If applicable, ML&Co. will comply with the requirements of Section 14(e) of
the Exchange Act and the rules promulgated thereunder and any other securities
laws or regulations in connection with any repayment at the option of the
holder.

   
     ML&Co. may at any time purchase notes at any price or prices in the open
market or otherwise. Notes so purchased by ML&Co. may, at the discretion of
ML&Co., be held, resold or surrendered to the trustee for cancellation.
    

INTEREST

     Each note will bear interest from the date of issue at the rate per annum
or, in the case of a floating rate note, pursuant to the interest rate formula
stated in the applicable note and in the applicable pricing supplement until the
principal of the note is paid or made available for payment. Interest will be
payable in arrears on each interest payment date specified in the applicable
pricing supplement on which an installment of interest is due and payable and at
Maturity. The first payment of interest on any note originally issued between a
regular record date and the related interest payment date will be made on the
interest payment date immediately following the next succeeding regular record
date to the registered holder on the next succeeding regular record date. The
regular record date will be the fifteenth calendar day, whether or not a
Business Day, immediately preceding the related interest payment date.

     FIXED RATE NOTES

     Unless otherwise specified in an applicable pricing supplement, each fixed
rate note will bear interest from, and including, the date of issue, at the rate
per annum stated on the face of the note until the principal amount of the note
is paid or made available for payment. Interest payments on fixed rate notes
will equal the amount of interest accrued from and including the immediately
preceding interest payment date in respect of which interest has been paid or
from and including the date of issue, if no interest has been paid with respect
to the applicable fixed rate notes, to, but excluding, the related interest
payment date or Maturity, as the case may be. Unless otherwise specified in the
applicable pricing supplement, interest on fixed rate notes will be computed on
the basis of a 360-day year of twelve 30-day months.

     Unless otherwise specified in the applicable pricing supplement, interest
on fixed rate notes will be payable semiannually on May 15 and November 15 of
each year and at Maturity. If any interest payment date or the Maturity of a
fixed rate note falls on a day that is not a Business Day, the related payment
of principal, premium, if any, or interest will be made on the next succeeding
Business Day as if made on the date the applicable payment was due, and no
interest will accrue on the amount payable for the period from and after the
interest payment date or Maturity, as the case may be.

     FLOATING RATE NOTES

     Interest on floating rate notes will be determined by reference to the
applicable Interest Rate Basis or Interest Rate Bases, which may be one or more
of:

     o    the CD Rate,

     o    the CMT Rate,

     o    the Commercial Paper Rate,

     o    the Eleventh District Cost of Funds Rate,

     o    the Federal Funds Rate,

     o    LIBOR,

     o    the Prime Rate,

     o    the Treasury Rate, or

     o    any other Interest Rate Basis or interest rate formula that is
          specified in the applicable pricing supplement.

     A floating rate note may bear interest with respect to two or more Interest
Rate Bases.

     TERMS. Each applicable pricing supplement will specify the terms of the
floating rate note being delivered, including:

     o    whether the floating rate note is

          o    a "Regular Floating Rate Note",

          o    a "Inverse Floating Rate Note" or

          o    a "Floating Rate/Fixed Rate Note",

     o    the Interest Rate Basis or Bases,

     o    the Initial Interest Rate,

     o    the Interest Reset Dates,

     o    the interest payment dates,

     o    the period to maturity of the instrument or obligation with respect to
          which the Interest Rate Basis or Bases will be calculated (the "Index
          Maturity"),

     o    the Maximum Interest Rate and Minimum Interest Rate, if any,

     o    the number of basis points to be added to or subtracted from the
          related Interest Rate Basis or Bases (the "Spread"),

     o    the percentage of the related Interest Rate Basis or Bases by which
          the Interest Rate Basis or Bases will be multiplied to determine the
          applicable interest rate (the "Spread Multiplier"),

     o    if one or more of the specified Interest Rate Bases is LIBOR, the
          LIBOR Currency, the Index Maturity and the Designated LIBOR Page, and

     o    if one or more of the specified Interest Rate Bases is the CMT Rate,
          the Designated CMT Telerate Page and Designated CMT Maturity Index.

     The interest rate borne by the floating rate Notes will be determined as
follows:

     Regular Floating Rate Notes. Unless a floating rate note is designated as a
Floating Rate/Fixed Rate Note, an Inverse Floating Rate Note or as having an
Addendum attached or as having "Other Provisions" apply relating to a different
interest rate formula, it will be a "Regular Floating Rate Note" and, except as
described below or in an applicable pricing supplement, will bear interest at
the rate determined by reference to the applicable Interest Rate Basis or Bases:

          o    plus or minus the applicable Spread, if any, and/or

          o    multiplied by the applicable Spread Multiplier, if any.

Commencing on the first Interest Reset Date, the rate at which interest on the
Regular Floating Rate Note will be payable will be reset as of each Interest
Reset Date; provided, however, that the interest rate in effect for the period
from the date of issue to the first Interest Reset Date will be the Initial
Interest Rate.

     Floating Rate/Fixed Rate Notes. If a floating rate note is designated as a
"Floating Rate/Fixed Rate Note", it will bear interest at the rate determined by
reference to the applicable Interest Rate Basis or Bases:

          o    plus or minus the applicable Spread, if any, and/or

          o    multiplied by the applicable Spread Multiplier, if any.

Commencing on the first Interest Reset Date, the rate at which interest on the
applicable Floating Rate/Fixed Rate Note will be payable will be reset as of
each Interest Reset Date; provided, however, that:

          o    the interest rate in effect for the period from the date of issue
               to the first Interest Reset Date will be the Initial Interest
               Rate, and

          o    the interest rate in effect commencing on, and including, the
               date on which interest begins to accrue on a fixed rate basis to
               Maturity will be the Fixed Interest Rate, if the rate is
               specified in the applicable pricing supplement, or if no Fixed
               Interest Rate is specified, the interest rate in effect on the
               Floating Rate/Fixed Rate Note on the day immediately preceding
               the date on which interest begins to accrue on a fixed rate
               basis.

         Inverse Floating Rate Notes. If a floating rate note is designated as
an "Inverse Floating Rate Note", except as described below, it will bear
interest equal to the Fixed Interest Rate specified in the related pricing
supplement minus the rate determined by reference to the applicable Interest
Rate Basis or Bases:

          o    plus or minus the applicable Spread, if any, and/or

          o    multiplied by the applicable Spread Multiplier, if any;

provided, however, that unless otherwise specified in the applicable pricing
supplement, the interest rate on the applicable Inverse Floating Rate Note will
not be less than zero percent. Commencing on the first Interest Reset Date, the
rate at which interest on the applicable Inverse Floating Rate Note is payable
will be reset as of each Interest Reset Date; provided, however, that the
interest rate in effect for the period from the date of issue to the first
Interest Reset Date will be the Initial Interest Rate.

     Each Interest Rate Basis shall be the rate determined in accordance with
the applicable provisions below. Except as set forth above, the interest rate in
effect on each day will be:

     o    if the day is an Interest Reset Date, the interest rate determined as
          of the Interest Determination Date (as defined below) immediately
          preceding the applicable Interest Reset Date or

     o    if the day is not an Interest Reset Date, the interest rate determined
          as of the Interest Determination Date immediately preceding the
          applicable Interest Reset Date.

     Interest Reset Dates. The applicable pricing supplement will specify the
dates on which the interest rate on the related floating rate note will be reset
(each, an "Interest Reset Date"). Unless otherwise specified in the applicable
pricing supplement, the Interest Reset Date will be, in the case of floating
rate notes which reset:

     o    daily - each Business Day;

     o    weekly - the Wednesday of each week, with the exception of weekly
          reset Floating Rate Notes as to which the Treasury Rate is an
          applicable Interest Rate Basis, which will reset the Tuesday of each
          week, except as described below;

     o    monthly - the third Wednesday of each month, with the exception of
          monthly reset Floating Rate Notes as to which the Eleventh District
          Cost of Funds Rate is an applicable Interest Rate Basis, which will
          reset on the first calendar day of the month;

     o    quarterly - the third Wednesday of March, June, September and December
          of each year;

     o    semiannually - the third Wednesday of the two months specified in the
          applicable pricing supplement; and

     o    annually - the third Wednesday of the month specified in the
          applicable pricing supplement;

provided, however, that with respect to Floating Rate/Fixed Rate Notes, the rate
of interest will not reset after the applicable date on which interest on a
fixed rate basis begins to accrue.

     If any Interest Reset Date for any floating rate note would otherwise be a
day that is not a Business Day, the applicable Interest Reset Date will be
postponed to the next succeeding day that is a Business Day, except that in the
case of a floating rate note as to which LIBOR is an applicable Interest Rate
Basis, if the Business Day falls in the next succeeding calendar month, then the
Interest Reset Date will be the immediately preceding Business Day. In addition,
in the case of a floating rate note for which the Treasury Rate is an applicable
Interest Rate Basis if the Interest Determination Date would otherwise fall on
an Interest Reset Date, then the applicable Interest Reset Date will be
postponed to the next succeeding Business Day.

     Maximum and Minimum Interest Rates. A floating rate note may also have
either or both of the following:

     o    a maximum numerical limitation, or ceiling, on the rate at which
          interest may accrue during any interest period (a "Maximum Interest
          Rate"), and

     o    a minimum numerical limitation, or floor, on the rate at which
          interest may accrue during any period (a "Minimum Interest Rate").

     The 1993 Indenture is, and any notes issued under the 1993 Indenture will
be, governed by and construed in accordance with the laws of the State of New
York. Under present New York law, the maximum rate of interest is 25% per annum
on a simple interest basis. This limit may not apply to securities in which
$2,500,000 or more has been invested. While ML&Co. believes that New York law
would be given effect by a state or federal court sitting outside of New York,
state laws frequently regulate the amount of interest that may be charged to and
paid by a borrower, including, in some cases, corporate borrowers. It is
suggested that prospective investors consult their personal advisors with
respect to the applicability of these laws. ML&Co. has agreed for the benefit of
the beneficial owners of the notes, to the extent permitted by law, not to claim
voluntarily the benefits of any laws concerning usurious rates of interest
against a beneficial owner of the notes.

     Interest Payments. Each applicable pricing supplement will specify the
dates on which interest will be payable. Each floating rate note will bear
interest from the date of issue at the rates specified in the applicable
floating rate note until the principal of the applicable note is paid or
otherwise made available for payment. Except as provided below or in the
applicable pricing supplement, the interest payment dates with respect to
floating rate notes will be, in the case of floating rate notes which reset:

     o    daily, weekly or monthly - the third Wednesday of each month or on the
          third Wednesday of March, June, September and December of each year,
          as specified in the applicable pricing supplement;

     o    quarterly - the third Wednesday of March, June, September and December
          of each year;

     o    semiannually - the third Wednesday of the two months of each year
          specified in the applicable pricing supplement;

     o    annually - the third Wednesday of the month of each year specified in
          the applicable pricing supplement; and

     o    at Maturity.

     If any interest payment date for any floating rate note, other than an
interest payment date at Maturity, would otherwise be a day that is not a
Business Day, the interest payment date will be postponed to the next succeeding
day that is a Business Day except that in the case of a floating rate note as to
which LIBOR is an applicable Interest Rate Basis, if the Business Day falls in
the next succeeding calendar month, the applicable interest payment date will be
the immediately preceding Business Day. If the Maturity of a floating rate note
falls on a day that is not a Business Day, the payment of principal, premium, if
any, and interest will be made on the next succeeding Business Day, and no
interest on such payment will accrue for the period from and after the Maturity.

   
     All percentages resulting from any calculation on floating rate notes will
be rounded to the nearest one hundred-thousandth of a percentage point, with
five one-millionths of a percentage point rounded upwards. For example,
9.876545%, or .09876545, would be rounded to 9.87655%, or .0987655. All dollar
amounts used in or resulting from any calculation on floating rate notes will be
rounded to the nearest cent with one-half cent being rounded upward.
    

     Interest payments on floating rate notes will equal the amount of interest
accrued from and including the immediately preceding interest payment date in
respect of which interest has been paid or from and including the date of issue,
if no interest has been paid, to but excluding the related interest payment date
or Maturity.

     With respect to each floating rate note, accrued interest is calculated by
multiplying its face amount by an accrued interest factor. The accrued interest
factor is computed by adding the interest factor calculated for each day in the
period for which accrued interest is being calculated.

     o    In the case of notes for which the Interest Rate Basis is the CD Rate,
          the Commercial Paper Rate, the Eleventh District Cost of Funds Rate,
          the Federal Funds Rate, LIBOR or the Prime Rate, the interest factor
          for each day will be computed by dividing the interest rate applicable
          to each day by 360.

     o    In the case of notes for which the Interest Rate Basis is the CMT Rate
          or the Treasury Rate, the interest factor for each day will be
          computed by dividing the interest rate applicable to each day by the
          actual number of days in the year.

     o    The interest factor for notes for which the interest rate is
          calculated with reference to two or more Interest Rate Bases will be
          calculated in each period in the same manner as if only one of the
          applicable Interest Rate Bases applied.

     Interest Determination Dates. The interest rate applicable to each interest
reset period commencing on the Interest Reset Date with respect to that interest
reset period will be the rate determined as of the applicable "Interest
Determination Date."

     o    The Interest Determination Date with respect to the CD Rate, the CMT
          Rate and the Commercial Paper Rate will be the second Business Day
          preceding each Interest Reset Date for the related note.

     o    The Interest Determination Date with respect to the Federal Funds Rate
          and the Prime Rate, will be the Business Day immediately preceding
          each Interest Reset Date.

     o    The Interest Determination Date with respect to the Eleventh District
          Cost of Funds Rate will be the last working day of the month
          immediately preceding each Interest Reset Date on which the Federal
          Home Loan Bank of San Francisco publishes the Index, as defined below.

     o    The Interest Determination Date with respect to LIBOR will be the
          second London Business Day preceding each Interest Reset Date.

     o    The Interest Determination Date with respect to the Treasury Rate will
          be the day in the week in which the related Interest Reset Date falls
          on which day Treasury Bills, as defined below, are normally auctioned.
          Treasury Bills are normally sold at auction on Monday of each week,
          unless that day is a legal holiday, in which case the auction is
          normally held on the following Tuesday, except that the auction may be
          held on the preceding Friday; provided, however, that if an auction is
          held on the Friday of the week preceding the related Interest Reset
          Date, the related Interest Determination Date will be the preceding
          Friday; and provided, further, that if an auction falls on any
          Interest Reset Date, then the related Interest Reset Date will instead
          be the first Business Day following the auction.

     o    The Interest Determination Date pertaining to a floating rate note the
          interest rate of which is determined with reference to two or more
          Interest Rate Bases will be the latest Business Day which is at least
          two Business Days before the applicable Interest Reset Date for the
          applicable floating rate note on which each Interest Reset Basis is
          determinable. Each Interest Rate Basis will be determined on the
          Interest Determination Date, and the applicable interest rate will
          take effect on the related Interest Reset Date.

     Calculation Date. Unless otherwise provided in the applicable pricing
supplement, MLPF&S will be the calculation agent. Upon the request of the holder
of any floating rate note, the calculation agent will provide the interest rate
then in effect and, if determined, the interest rate that will become effective
as a result of a determination made for the next Interest Reset Date with
respect to that floating rate note. Unless otherwise specified in the applicable
pricing supplement, the calculation date, if applicable, pertaining to any
Interest Determination Date will be the earlier of:

     o    the tenth calendar day after the applicable Interest Determination
          Date, or, if the tenth calendar day is not a Business Day, the next
          succeeding Business Day or

     o    the Business Day preceding the applicable Interest Payment Date or
          Maturity, as the case may be.

     CD RATE. CD Rate Notes will bear interest at the rates, calculated with
reference to the CD Rate and the Spread and/or Spread Multiplier, if any,
specified in the applicable CD Rate Notes and in any applicable pricing
supplement.

     "CD Rate" means:

     (1)  the rate on the applicable Interest Determination Date for negotiable
          United States dollar certificates of deposit having the Index Maturity
          specified in the applicable pricing supplement published in H.15(519)
          under the heading "CDs (secondary market)", or

     (2)  if the rate referred to in clause (1) above is not so published by
          3:00 P.M., New York City time, on the related calculation date, the
          rate on the applicable Interest Determination Date for negotiable
          United States dollar certificates of deposit of the Index Maturity
          specified in the applicable pricing supplement as published in H.15
          Daily Update, or other recognized electronic source used for the
          purpose of displaying the applicable rate, under the caption "CDs
          (secondary market)", or

     (3)  if the rate referred to in clause (2) is not so published by 3:00
          P.M., New York City time, on the related calculation date, the rate on
          the applicable Interest Determination Date calculated by the
          calculation agent as the arithmetic mean of the secondary market
          offered rates as of 10:00 A.M., New York City time, on the applicable
          Interest Determination Date, of three leading non-bank dealers in
          negotiable United States dollar certificates of deposit in The City of
          New York selected by the calculation agent for negotiable United
          States dollar certificates of deposit of major United States money
          center banks for negotiable certificates of deposit with a remaining
          maturity closest to the Index Maturity specified in the applicable
          pricing supplement in an amount that is representative for a single
          transaction in that market at that time, or

     (4)  if the dealers selected by the calculation agent are not quoting as
          mentioned in clause (3) above, the CD rate in effect on the applicable
          Interest Determination Date.

     "H.15(519)" means the weekly statistical release designated as H.15(519),
or any successor publication, published by the Board of Governors of the Federal
Reserve System.

     "H.15 Daily Update" means the daily update of H.15(519), available through
the world-wide-web site of the Board of Governors of the Federal Reserve System
at http://www.bog.frb.fed.us/releases/h15/update, or any successor site or
publication.

     CMT Rate. CMT Rate Notes will bear interest at the rates, calculated with
reference to the CMT Rate and the Spread and/or Spread Multiplier, if any,
specified in the applicable CMT Rate Notes and in any applicable pricing
supplement.

     "CMT Rate" means:

     (1)  the rate displayed on the Designated CMT Telerate Page under the
          caption "...Treasury Constant Maturities... Federal Reserve Board
          Release H.15... Mondays Approximately 3:45 P.M.", under the column for
          the Designated CMT Maturity Index for:

          (a)  if the Designated CMT Telerate Page is 7051, the rate on the
               applicable Interest Determination Date, and

          (b)  if the Designated CMT Telerate Page is 7052, the weekly or the
               monthly average, as specified in the applicable pricing
               supplement, for the week or the month, as applicable, ended
               immediately preceding the week or the month, as applicable, in
               which the related Interest Determination Date falls, or

     (2)  if the rate referred to in clause (1) is no longer displayed on the
          relevant page or is not so displayed by 3:00 P.M., New York City time,
          on the related calculation date, the treasury constant maturity rate
          for the Designated CMT Maturity Index published in H.15(519), or

     (3)  if the rate referred to in clause (2) is no longer published or is not
          published by 3:00 P.M., New York City time, on the related calculation
          date, the treasury constant maturity rate for the Designated CMT
          Maturity Index, or other United States Treasury rate for the
          Designated CMT Maturity Index, for the applicable Interest
          Determination Date with respect to the applicable Interest Reset Date
          as may then be published by either the Board of Governors of the
          Federal Reserve System or the United States Department of the Treasury
          that the calculation agent determines to be comparable to the rate
          formerly displayed on the Designated CMT Telerate Page and published
          in H.15(519), or

     (4)  if the rate referred to in clause (4) applicable information is not
          so published by 3:00 P.M., New York City time, on the applicable
          calculation date, the rate on the applicable Interest Determination
          Date calculated by the calculation agent as a yield to maturity,
          based on the arithmetic mean of the secondary market offered rates
          as of approximately 3:30 P.M., New York City time, on the applicable
          Interest Determination Date reported, according to their written
          records, by three leading primary United States government
          securities dealers in The City of New York, which may include the
          agent or its affiliates (each, a "Reference Dealer"), selected by
          the calculation agent from five Reference Dealers selected by the
          calculation agent after eliminating the highest quotation, or, in
          the event of equality, one of the highest, and the lowest quotation
          or, in the event of equality, one of the lowest, for the most
          recently issued direct noncallable fixed rate obligations of the
          United States ("Treasury Notes") with an original maturity of
          approximately the Designated CMT Maturity Index and a remaining term
          to maturity of not less than such Designated CMT Maturity Index
          minus one year, or

     (5)  if the calculation agent is unable to obtain three applicable Treasury
          Note quotations as referred to in clause (4), the rate on the
          applicable Interest Determination Date calculated by the calculation
          agent as a yield to maturity based on the arithmetic mean of the
          secondary market offered rates as of approximately 3:30 P.M., New York
          City time, on the applicable Interest Determination Date of three
          Reference Dealers in The City of New York selected by the calculation
          agent from five Reference Dealers selected by the calculation agent
          after eliminating the highest quotation or, in the event of equality,
          one of the highest and the lowest quotation or, in the event of
          equality, one of the lowest, for Treasury Notes with an original
          maturity of the number of years that is the next highest to the
          Designated CMT Maturity Index and a remaining term to maturity closest
          to the Designated CMT Maturity Index and in an amount of at least $100
          million, or

     (6)  if three or four and not five of Reference Dealers are quoting as
          referred to in clause (5) above, the rate will be calculated by the
          calculation agent as the arithmetic mean of the offered rates obtained
          and neither the highest nor the lowest of quotes will be eliminated,
          or

     (7)  if fewer than three Reference Dealers selected by the calculation
          agent are quoting as mentioned in clause (6), the rate in effect on
          the applicable Interest Determination Date.

               If two Treasury Notes with an original maturity as described in
          clause (6) have remaining terms to maturity equally close to the
          Designated CMT Maturity Index, the calculation agent will obtain from
          five Reference Dealers quotations for the Treasury Notes with the
          shorter remaining term to maturity.

     "Designated CMT Telerate Page" means the display on Bridge Telerate, Inc.
or any successor service on the page specified in the applicable pricing
supplement or any other page as may replace the specified page on that service
for the purpose of displaying Treasury Constant Maturities as reported in
H.15(519), or, if no page is specified in the applicable pricing supplement,
page 7052.

     "Designated CMT Maturity Index" means the original period to maturity of
the U.S. Treasury securities, either 1, 2, 3, 5, 7, 10, 20 or 30 years,
specified in the applicable pricing supplement with respect to which the CMT
Rate will be calculated or, if no maturity is specified in the applicable
pricing supplement, 2 years.

     COMMERCIAL PAPER RATE. Commercial Paper Rate Notes will bear interest at
the rates, calculated with reference to the Commercial Paper Rate and the Spread
and/or Spread Multiplier, if any, specified in the applicable Commercial Paper
Rate Notes and in any applicable pricing supplement.

     "Commercial Paper Rate" means:

     (1)  the Money Market Yield on the applicable Interest Determination Date
          of the rate for commercial paper having the Index Maturity specified
          in the applicable pricing supplement published in H.15(519) under the
          caption "Commercial Paper-Nonfinancial", or

     (2)  if the rate described in clause (1) is not so published by 3:00 P.M.,
          New York City time, on the related calculation date, the rate on the
          applicable Interest Determination Date for commercial paper having the
          Index Maturity specified in the applicable pricing supplement
          published in H.15 Daily Update, or other recognized electronic source
          used for the purpose of displaying the applicable rate, under the
          caption "Commercial Paper-Nonfinancial", or

     (3)  if the rate is referred to in clause (2) is not so published by 3:00
          P.M., New York City time, on the related calculation date, the rate on
          the applicable Interest Determination Date calculated by the
          calculation agent as the Money Market Yield of the arithmetic mean of
          the offered rates at approximately 11:00 A.M., New York City time, on
          the applicable Interest Determination Date of three leading dealers of
          United States dollar commercial paper in The City of New York, which
          may include the agent and its affiliates, selected by the calculation
          agent for commercial paper having the Index Maturity specified in the
          applicable pricing supplement placed for industrial issuers whose bond
          rating is "Aa", or the equivalent, from a nationally recognized
          statistical rating organization, or

     (4)  if the dealers selected by the calculation agent are not quoting as
          mentioned in clause (3), the rate in effect on the applicable Interest
          Determination Date.

     "Money Market Yield" means a yield calculated in accordance with the
following formula and expressed as a percentage:

                                             D x 360
           Money Market Yield    =   ----------------------   x   100
                                         360 - ( D x M )

where "D" refers to the applicable per annum rate for commercial paper quoted on
a bank discount basis and expressed as a decimal, and "M" refers to the actual
number of days in the interest period for which interest is being calculated.

     ELEVENTH DISTRICT COST OF FUNDS RATE. Eleventh District Cost of Funds Rate
Notes will bear interest at the rates, calculated with reference to the Eleventh
District Cost of Funds Rate and the Spread and/or Spread Multiplier, if any,
specified in the applicable Eleventh District Cost of Funds Rate Notes and in
any applicable pricing supplement.

     "Eleventh District Cost of Funds Rate" means:

     (1)  the rate equal to the monthly weighted average cost of funds for the
          calendar month immediately preceding the month in which the applicable
          Interest Determination Date falls as set forth under the caption "11th
          District" on the display on Bridge Telerate, Inc. or any successor
          service on page 7058 or any other page as may replace the specified
          page on that service ("Telerate Page 7058") as of 11:00 A.M., San
          Francisco time, on the applicable Interest Determination Date, or

     (2)  if the rate referred to in clause (1) does not appear on Telerate Page
          7058 on the related Interest Determination Date, the monthly weighted
          average cost of funds paid by member institutions of the Eleventh
          Federal Home Loan Bank District that was most recently announced (the
          "Index") by the Federal Home Loan Bank of San Francisco as the cost of
          funds for the calendar month immediately preceding the applicable
          Interest Determination Date, or

     (3)  if the Federal Home Loan Bank of San Francisco fails to announce the
          Index on or before the applicable Interest Determination Date for the
          calendar month immediately preceding the applicable Interest
          Determination Date, the rate in effect on the applicable Interest
          Determination Date.

     FEDERAL FUNDS RATE. Federal Funds Rate Notes will bear interest at the
rates, calculated with reference to the Federal Funds Rate and the Spread and/or
Spread Multiplier, if any, specified in the applicable Federal Funds Rate Notes
and in any applicable pricing supplement.

     "Federal Funds Rate" means:

     (1)  the rate on the applicable Interest Determination Date for United
          States dollar federal funds as published in H.15(519) under the
          heading "Federal Funds (Effective)", as displayed on Bridge Telerate,
          Inc. or any successor service on page 120 or any other page as may
          replace the applicable page on that service ("Telerate Page 120"), or

     (2)  if the rate referred to in clause (1) does not appear on Telerate Page
          120 or is not so published by 3:00 P.M., New York City time, on the
          related calculation date, the rate on the applicable Interest
          Determination Date for United States dollar federal funds published in
          H.15 Daily Update, or other recognized electronic source used for the
          purpose of displaying the applicable rate, under the caption "Federal
          Funds/Effective Rate", or

     (3)  if the rate referred to in clause (2) is not so published by 3:00
          P.M., New York City time, on the related calculation date, the rate on
          the applicable Interest Determination Date calculated by the
          calculation agent as the arithmetic mean of the rates for the last
          transaction in overnight United States dollar federal funds arranged
          by three leading brokers of United States dollar federal funds
          transactions in The City of New York, which may include the agent or
          its affiliates, selected by the calculation agent before 9:00 A.M.,
          New York City time, on the applicable Interest Determination Date, or

     (4)  if the brokers selected by the calculation agent are not quoting as
          mentioned in clause (3), the rate in effect on the applicable Interest
          Determination Date.

     LIBOR. LIBOR Notes will bear interest at the rates, calculated with
reference to LIBOR and the Spread and/or Spread Multiplier, if any, specified in
the applicable LIBOR Notes and in any applicable pricing supplement.

     "LIBOR" means:

     (1)  if "LIBOR Telerate" is specified in the applicable pricing supplement
          or if neither "LIBOR Reuters" nor "LIBOR Telerate" is specified in the
          applicable pricing supplement as the method for calculating LIBOR,
          LIBOR will be the rate for deposits in the LIBOR Currency, as defined
          below, having the Index Maturity specified in the applicable pricing
          supplement, commencing on the second London Business Day immediately
          following that Interest Determination Date that appears on the
          Designated LIBOR Page as of 11:00 A.M., London time, on the applicable
          Interest Determination Date, or

     (2)  if "LIBOR Reuters" is specified in the applicable pricing supplement,
          LIBOR will be the arithmetic mean of the offered rates for deposits in
          the LIBOR Currency having the Index Maturity specified in the
          applicable pricing supplement, commencing on the second London
          Business Day immediately following that Interest Determination Date,
          that appear, on the Designated LIBOR Page specified in the applicable
          pricing supplement as of 11:00 A.M., London time, on the applicable
          Interest Determination Date. If the Designated LIBOR Page by its terms
          provides only for a single rate, then the single rate will be used, or

     (3)  with respect to a LIBOR Interest Determination Date on which fewer
          than two offered rates appear, or no rate appears, as the case may
          be, on the designated LIBOR Page as specified in clauses (1) and
          (2), respectively, the rate calculated by the calculation agent as
          the arithmetic mean of at least two quotations obtained by the
          calculation agent after requesting the principal London offices of
          each of four major reference banks, which may include affiliates of
          the agent, in the London interbank market to provide the calculation
          agent with its offered quotation for deposits in the LIBOR Currency
          for the period of the Index Maturity specified in the applicable
          pricing supplement, commencing on the second London Business Day
          immediately following the applicable Interest Determination Date, to
          prime banks in the London interbank market at approximately 11:00
          A.M., London time, on the applicable Interest Determination Date and
          in a principal amount that is representative for a single
          transaction in the applicable LIBOR Currency in that market at that
          time, or

     (4)  if fewer than two quotations referred to in clause (3) are so
          provided, the rate on the applicable Interest Determination Date
          calculated by the calculation agent as the arithmetic mean of the
          rates quoted at approximately 11:00 A.M., in the applicable Principal
          Financial Center(s), on the applicable Interest Determination Date by
          three major banks, which may include affiliates of the agent, in the
          applicable Principal Financial Center selected by the calculation
          agent for loans in the LIBOR Currency to leading European banks,
          having the Index Maturity specified designated in the applicable
          pricing supplement and in a principal amount that is representative
          for a single transaction in the applicable LIBOR Currency in that
          market at that time, or

     (5)  if the banks so selected by the calculation agent are not quoting as
          mentioned in clause (4), the rate in effect on the applicable Interest
          Determination Date.

                  "LIBOR Currency" means the currency specified in the
                  applicable pricing supplement as to which LIBOR will be
                  calculated or, if no currency is specified in the applicable
                  pricing supplement, United States dollars.

     "Designated LIBOR Page" means either:

     o    if "LIBOR Telerate" is designated in the applicable pricing supplement
          or neither "LIBOR Reuters" nor "LIBOR Telerate" is specified in the
          applicable pricing supplement as the method for calculating LIBOR, the
          display on Bridge Telerate, Inc. or any successor service on the page
          specified in such pricing supplement or any page as may replace the
          specified page on that service for the purpose of displaying the
          London interbank rates of major banks for the applicable LIBOR
          Currency, or

     o    if "LIBOR Reuters" is specified in the applicable pricing supplement,
          the display on the Reuter Monitor Money Rates Service or any successor
          service on the page specified in the applicable pricing supplement or
          any other page as may replace the specified page on that service for
          the purpose of displaying the London interbank rates of major banks
          for the applicable LIBOR Currency.

     PRIME RATE. Prime Rate Notes will bear interest at the rates, calculated
with reference to the Prime Rate and the Spread and/or Spread Multiplier, if
any, specified in the applicable Prime Rate Notes and any applicable pricing
supplement.

     "Prime Rate" means:

     (1)  the rate on the applicable Interest Determination Date as published in
          H.15(519) under the heading "Bank Prime Loan", or

     (2)  if the rate referred to in clause (1) is not so published by 3:00
          P.M., New York City time, on the related calculation date, the rate on
          the applicable Interest Determination Date published in H.15 Daily
          Update, or such other recognized electronic source used for the
          purpose of displaying the applicable rate under the caption "Bank
          Prime Loan", or

     (3)  if the rate referred to in clause (2) is not so published by 3:00
          P.M., New York City time, on the related calculation date, the rate
          calculated by the calculation agent as the arithmetic mean of the
          rates of interest publicly announced by at least four banks that
          appear on the Reuters Screen US PRIME 1 Page as the particular bank's
          prime rate or base lending rate as of 11:00 A.M., New York City time,
          on the applicable Interest Determination Date, or

     (4)  if fewer than four rates described in clause (3) by 3:00 P.M., New
          York City time, on the related calculation date as shown on Reuters
          Screen vs Prime 1, the rate on the applicable Interest Determination
          Date calculated by the calculation agent as the arithmetic mean of
          the prime rates or base lending rates quoted on the basis of the
          actual number of days in the year divided by a 360-day year as of
          the close of business on the applicable Interest Determination Date
          by three major banks, which may include affiliates of the agent, in
          The City of New York selected by the calculation agent, or

     (5)  if the banks selected by the calculation agent are not quoting as
          mentioned in clause (4), the rate in effect on the applicable Interest
          Determination Date.

     "Reuters Screen US PRIME 1 Page" means the display on the Reuter Monitor
Money Rates Service or any successor service on the "US PRIME 1" Page or other
page as may replace the US PRIME 1 Page on such service for the purpose of
displaying prime rates or base lending rates of major United States banks.

     TREASURY RATE. Treasury Rate Notes will bear interest at the rates,
calculated with reference to the Treasury Rate and the Spread and/or Spread
Multiplier, if any, specified in the applicable Treasury Rate Notes and in any
applicable pricing supplement.

     "Treasury Rate" means:

     (1)  the rate from the auction held on the applicable Interest
          Determination Date (the "Auction") of direct obligations of the United
          States ("Treasury Bills") having the Index Maturity specified in the
          applicable pricing supplement under the caption "INVESTMENT RATE" on
          the display on Bridge Telerate, Inc. or any successor service on page
          56 or any other page as may replace page 56 on that service ("Telerate
          Page 56") or page 57 or any other page as may replace page 57 on that
          service ("Telerate Page 57"), or

     (2)  if the rate described in clause (1) is not so published by 3:00 P.M.,
          New York City time, on the related calculation date, the Bond
          Equivalent Yield of the rate for the applicable Treasury Bills as
          published in H.15 Daily Update, or other recognized electronic source
          used for the purpose of displaying the applicable rate, under the
          caption "U.S. Government Securities/Treasury Bills/Auction High", or

     (3)  if the rate described in clause (2) is not so published by 3:00 P.M.,
          New York City time, on the related calculation date, the Bond
          Equivalent Yield of the auction rate of the applicable Treasury Bills
          announced by the United States Department of the Treasury, or

     (4)  in the event that the rate referred to in clause (3) is not announced
          by the United States Department of the Treasury, or if the Auction is
          not held, the Bond Equivalent Yield of the rate on the applicable
          Interest Determination Date of Treasury Bills having the Index
          Maturity specified in the applicable Pricing Supplement published in
          H.15(519) under the caption "U.S. Government Securities/Treasury
          Bills/Secondary Market", or

     (5)  if the rate referred to in clause (4) is not so published by 3:00
          P.M., New York City time, on the related calculation date, the rate on
          the applicable Interest Determination Date of the applicable Treasury
          Bills as published in H.15 Daily Update, or other recognized
          electronic source used for the purpose of displaying the applicable
          rate, under the caption "U.S. Government Securities/Treasury
          Bills/Secondary Market", or

     (6)  if the rate referred to in clause (5) is not so published by 3:00
          P.M., New York City time, on the related Calculation Date, the rate on
          the applicable Interest Determination Date calculated by the
          calculation agent as the Bond Equivalent Yield of the arithmetic mean
          of the secondary market bid rates, as of approximately 3:30 P.M., New
          York City time, on the applicable Interest Determination Date, of
          three primary United States government securities dealers, which may
          include the agent or its affiliates, selected by the calculation
          agent, for the issue of Treasury Bills with a remaining maturity
          closest to the Index Maturity specified in the applicable pricing
          supplement, or

     (7)  if the dealers selected by the calculation agent are not quoting as
          mentioned in clause (6), the rate in effect on the applicable Interest
          Determination Date.

     "Bond Equivalent Yield" means a yield calculated in accordance with the
following formula and expressed as a percentage:

                                         D x N
          Bond Equivalent Yield = --------------------   x    100
                                     360 - ( D x M )

where "D" refers to the applicable per annum rate for Treasury Bills quoted on a
bank discount basis, "N" refers to 365 or 366, as the case may be, and "M"
refers to the actual number of days in the interest period for which interest is
being calculated.

OTHER PROVISIONS; ADDENDA

     Any provisions with respect to an issue of notes, including the
determination of one or more Interest Rate Bases, the specification of one or
more Interest Rate Bases, the calculation of the interest rate applicable to a
floating rate note, the applicable interest payment dates, the stated maturity
date, any redemption or repayment provisions or any other matter relating to the
applicable notes may be modified by the terms as specified under "Other
Provisions" on the face of the applicable notes or in an Addendum relating to
the applicable notes, if so specified on the face of the applicable notes and in
the applicable pricing supplement.

ORIGINAL ISSUE DISCOUNT NOTES

     ML&Co. may from time to time offer notes at a price less than their
redemption price at Maturity, resulting in the applicable notes being treated as
if they were issued with original issue discount for federal income tax purposes
("Original Issue Discount Notes"). Original Issue Discount Notes may currently
pay no interest or interest at a rate which at the time of issuance is below
market rates. Additional considerations relating to any Original Issue Discount
Notes will be described in the applicable pricing supplement.

AMORTIZING NOTES

     ML&Co. may from time to time offer notes ("Amortizing Notes"), with amounts
of principal and interest payable in installments over the term of the notes.
Unless otherwise specified in the applicable pricing supplement, interest on
each Amortizing Note will be computed on the basis of a 360-day year of twelve
30-day months. Payments with respect to Amortizing Notes will be applied first
to interest due and payable on the Amortizing Notes and then to the reduction of
the unpaid principal amount of the Amortizing Notes. Further information
concerning additional terms and conditions of any issue of Amortizing Notes will
be provided in the applicable pricing supplement. A table setting forth
repayment information in respect of each Amortizing Note will be included in the
applicable note and the applicable pricing supplement.

LINKED NOTES

     ML&Co. may from time to time offer notes ("Linked Notes") the principal
value of which at Maturity will be determined by reference to:

     (a)  one or more equity or debt securities, including, but not limited to,
          the price or yield of such securities,

     (b)  any statistical measure of economic or financial performance,
          including, but not limited to, any currency, consumer price or
          mortgage index, or

     (c)  the price or value of any commodity or any other item or index or any
          combination,

(collectively, the "Linked Securities"). The payment or delivery of any
consideration on any Linked Note at Maturity will be determined by the decrease
or increase, as applicable, in the price or value of the applicable Linked
Securities. The terms of and any additional considerations, including any
material tax consequences, relating to any Linked Notes will be described in the
applicable pricing supplement.

BOOK-ENTRY NOTES

     DESCRIPTION OF THE GLOBAL SECURITIES

   
     Upon issuance, all notes in book-entry form having the same date of issue,
Maturity and otherwise having identical terms and provisions will be represented
by one or more fully registered global notes (the "Global Notes"). Each Global
Note will be deposited with, or on behalf of, The Depository Trust Company as
depository registered in the name of the depository or a nominee of the
depository. Unless and until it is exchanged in whole or in part for notes in
certificated form, no Global Note may be transferred except as a whole by the
depository to a nominee of the depository or by a nominee of the depository to
the depository or another nominee of the depository or by the depository or any
such nominee to a successor of the depository or a nominee of the successor.
    

     DTC PROCEDURES

   
     The following is based on information furnished by the depository:

     The depository will act as securities depository for the notes in
book-entry form. The notes in book-entry form will be issued as fully registered
securities registered in the name of Cede & Co., the depository's partnership
nominee. One fully registered Global Note will be issued for each issue of notes
in book-entry form, each in the aggregate principal amount of the issue, and
will be deposited with the depository. If, however, the aggregate principal
amount of any issue exceeds $200,000,000, one Global Note will be issued with
respect to each $200,000,000 of principal amount and an additional Global Note
will be issued with respect to any remaining principal amount of the issue.

     The depository is a limited-purpose trust company organized under the New
York Banking Law, a "banking organization" within the meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing corporation"
within the meaning of the New York Uniform Commercial Code, and a "clearing
agency" registered pursuant to the provisions of Section 17A of the Exchange
Act. The depository holds securities that its participants deposit with the
depository. The depository also facilitates the settlement among participants of
securities transactions, such as transfers and pledges, in deposited securities
through electronic computerized book-entry changes in participants' accounts,
thereby eliminating the need for physical movement of securities certificates.
Direct participants of the depository include securities brokers and dealers,
banks, trust companies, clearing corporations and certain other organizations.
The depository is owned by a number of its direct participants and by the New
York Stock Exchange, Inc., the American Stock Exchange, Inc., and the National
Association of Securities Dealers, Inc. Access to the depository's system is
also available to others such as securities brokers and dealers, banks and trust
companies that clear through or maintain a custodial relationship with a direct
participant, either directly or indirectly. The rules applicable to the
depository and its participants are on file with the SEC.

     Purchasers of notes in book-entry form under the depository's system must
be made by or through direct participants, which will receive a credit for those
notes in book-entry form on the depository's records. The ownership interest of
each actual purchaser of each note in book-entry form represented by a Global
Note is, in turn, to be recorded on the records of direct participants and
indirect participants. Beneficial owners in book-entry form will not receive
written confirmation from the depository of their purchase, but beneficial
owners are expected to receive written confirmations providing details of the
transaction, as well as periodic statements of their holdings, from the direct
participants or indirect participants through which the beneficial owner entered
into the transaction. Transfers of ownership interests in a Global Note
representing notes in book-entry form are to be accomplished by entries made on
the books of participants acting on behalf of beneficial owners. Beneficial
owners of a Global Note representing notes in book-entry form will not receive
notes in certificated form representing their ownership interests therein,
except in the event that use of the book-entry system for such notes in
book-entry form is discontinued.

     To facilitate subsequent transfers, all Global Notes representing notes in
book-entry form which are deposited with, or on behalf of, the depository are
registered in the name of the depository's nominee, Cede & Co. The deposit of
Global Notes with, or on behalf of, the depository and their registration in the
name of Cede & Co. effect no change in beneficial ownership. The depository has
no knowledge of the actual beneficial owners of the Global Notes representing
the notes in book-entry form; the depository's records reflect only the identity
of the direct participants to whose accounts such notes in book-entry form are
credited, which may or may not be the beneficial owners. The participants will
remain responsible for keeping account of their holdings on behalf of their
customers.

     Conveyance of notices and other communications by the depository to direct
participants, by direct participants to indirect participants, and by direct
participants and indirect participants to beneficial owners, will be governed by
arrangements among them, subject to any statutory or regulatory requirements as
may be in effect from time to time.

     Neither the depository nor Cede & Co. will consent or vote with respect to
the Global Notes representing the notes in book-entry form. Under its usual
procedures, the depository mails an omnibus proxy to ML&Co. as soon as possible
after the applicable record date. The omnibus proxy assigns Cede & Co.'s
consenting or voting rights to those direct participants, identified in a
listing attached to the omnibus proxy, to whose accounts the notes in book-entry
form are credited on the applicable record date.

     ML&Co. will make principal, premium, if any, and/or interest, if any,
payments on the Global Notes representing the notes in book-entry form in
immediately available funds to the depository. The depository's practice is to
credit direct participants' accounts on the applicable payment date in
accordance with their respective holdings shown on the depository's records
unless the depository has reason to believe that it will not receive payment on
the applicable payment date. Payments by participants to beneficial owners will
be governed by standing instructions and customary practices, as is the case
with securities held for the accounts of customers in bearer form or registered
in "street name", and will be the responsibility of the applicable participant
and not of the depository, the trustee or ML&Co., subject to any statutory or
regulatory requirements as may be in effect from time to time. Payment of
principal, premium, if any, and/or interest, if any, to the depository is the
responsibility of ML&Co. and the trustee, disbursement of payments to direct
participants will be the responsibility of the depository, and disbursement of
payments to the beneficial owners will be the responsibility of direct
participants and indirect participants.

     If applicable, redemption notices shall be sent to Cede & Co. If less than
all of the notes in book-entry form of like tenor and terms are being redeemed,
the depository's practice is to determine by lot the amount of the interest of
each direct participant in the issue to be redeemed.

     A beneficial owner will give notice of any option to elect to have its
notes in book-entry form repaid by ML&Co., through its participant, to the
trustee, and will effect delivery of the applicable notes in book-entry form by
causing the direct participant to transfer the participant's interest in the
Global Note notes in book-entry form, on the depository's records, to the
trustee.

     The depository may discontinue providing its services as securities
depository with respect to the notes in book-entry form at any time by giving
reasonable notice to ML&Co. or the trustee. In the event that a successor
securities depository is not obtained, notes in certificated form are required
to be printed and delivered.

     ML&Co. may decide to discontinue use of the system of book-entry transfers
through the depository or a successor securities depository. In that event,
notes in certificated form will be printed and delivered.
    

     The laws of some states may require that certain purchasers of securities
take physical delivery of securities in definitive form. Such limits and such
laws may impair the ability to own, transfer or pledge beneficial interests in
Global Notes.

   
     So long as the depository, or its nominee, is the registered owner of a
Global Note, the depository or its nominee, as the case may be, will be
considered the sole owner or holder of the notes represented by such Global Note
for all purposes under the 1993 Indenture. Except as provided below, beneficial
owners of a Global Note will not be entitled to have the notes represented by a
Global Note registered in their names, will not receive or be entitled to
receive physical delivery of the notes in definitive form and will not be
considered the owners or holders thereof under the 1993 Indenture. Accordingly,
each person owning a beneficial interest in a Global Note must rely on the
procedures of the depository and, if that person is not a participant, on the
procedures of the participant through which that person owns its interest, to
exercise any rights of a holder under the 1993 Indenture. ML&Co. understands
that under existing industry practices, in the event that ML&Co. requests any
action of holders or that an owner of a beneficial interest in a Global Note
desires to give or take any action which a holder is entitled to give or take
under the 1993 Indenture, the depository would authorize the participants
holding the relevant beneficial interests to give or take the desired action,
and the participants would authorize beneficial owners owning through the
participants to give or take the desired action or would otherwise act upon the
instructions of beneficial owners.

     Exchange for Notes in Certificated Form
    

     If:

   
     (a)  the depository is at any time unwilling or unable to continue as
          depository and a successor depository is not appointed by ML&Co.
          within 60 days,

     (b)  ML&Co. executes and delivers to the trustee a company order to the
          effect that the Global Notes shall be exchangeable, or
    

     (c)  an Event of Default has occurred and is continuing with respect to the
          notes,

   
the Global Note or Global Notes will be exchangeable for notes in certificated
form of like tenor and of an equal aggregate principal amount, in denominations
of $1,000 and integral multiples of $1,000. The certificated notes will be
registered in the name or names as the depository instructs the trustee. It is
expected that instructions may be based upon directions received by the
depository from participants with respect to ownership of beneficial interests
in Global Notes.

     The information in this section concerning the depository and the
depository's system has been obtained from sources that ML&Co. believes to be
reliable, but ML&Co. takes no responsibility for the accuracy of the
information.
    

                      UNITED STATES FEDERAL INCOME TAXATION

   
     The following summary of certain United States Federal income tax
consequences of the purchase, ownership and disposition of the notes is based
upon laws, regulations, rulings and decisions now in effect, all of which are
subject to change, including changes in effective dates, or possible differing
interpretations. It deals only with notes held as capital assets and does not
purport to deal with persons in special tax situations, such as financial
institutions, insurance companies, regulated investment companies, dealers in
securities or currencies, persons holding notes as a hedge against currency
risks or as a position in a "straddle" for tax purposes, or persons whose
functional currency is not the United States dollar. It also does not deal with
holders other than original purchasers, except where otherwise specifically
noted. Persons considering the purchase of the notes should consult their own
tax advisors concerning the application of United States Federal income tax laws
to their particular situations as well as any consequences of the purchase,
ownership and disposition of the notes arising under the laws of any other
taxing jurisdiction.

     As used in this prospectus, the term "U.S. Holder" means a beneficial owner
of a note that is for United States Federal income tax purposes:
    

     (1)  a citizen or resident of the United States,

     (2)  a corporation or a partnership (including an entity treated as a
          corporation or a partnership for United States Federal income tax
          purposes) created or organized in or under the laws of the United
          States, any state thereof or the District of Columbia (unless, in the
          case of a partnership, Treasury regulations are adopted that provide
          otherwise),

     (3)  an estate whose income is subject to United States Federal income tax
          regardless of its source,

     (4)  a trust if a court within the United States is able to exercise
          primary supervision over the administration of the trust and one or
          more United States persons have the authority to control all
          substantial decisions of the trust, or

     (5)  any other person whose income or gain in respect of a note is
          effectively connected with the conduct of a United States trade or
          business.

Certain trusts not described in clause (4) above in existence on August 20, 1996
that elect to be treated as a United States person will also be a U.S. Holder
for purposes of the following discussion. As used herein, the term "non-U.S.
Holder" means a beneficial owner of a note that is not a U.S. Holder.

U.S. HOLDERS

     PAYMENTS OF INTEREST. Payments of interest on a note generally will be
taxable to a U.S. Holder as ordinary interest income at the time such payments
are accrued or are received (in accordance with the U.S. Holder's regular method
of tax accounting).

     ORIGINAL ISSUE DISCOUNT. The following summary is a general discussion of
the United States Federal income tax consequences to U.S. Holders of the
purchase, ownership and disposition of notes issued with original issue discount
("Discount Notes"). The following summary is based upon final Treasury
regulations (the "OID Regulations") released by the Internal Revenue Service on
January 27, 1994, as amended on June 11, 1996, under the original issue discount
provisions of the Code.

     For United States Federal income tax purposes, original issue discount is
the excess of the stated redemption price at maturity of a note over its issue
price, if such excess equals or exceeds a de minimis amount (generally 1/4 of 1%
of the note's stated redemption price at maturity multiplied by the number of
complete years to its maturity from its issue date or, in the case of a note
providing for the payment of any amount other than qualified stated interest (as
defined below) prior to maturity, multiplied by the weighted average maturity of
the note). The issue price of each note of an issue of notes equals the first
price at which a substantial amount of the notes has been sold (ignoring sales
to bond houses, brokers, or similar persons or organizations acting in the
capacity of underwriters, placement agents, or wholesalers). The stated
redemption price at maturity of a note is the sum of all payments provided by
the note other than "qualified stated interest" payments. The term "qualified
stated interest" generally means stated interest that is unconditionally payable
in cash or property (other than debt instruments of the issuer) at least
annually at a single fixed rate. In addition, under the OID Regulations, if a
note bears interest for one or more accrual periods at a rate below the rate
applicable for the remaining term of the note (e.g., notes with teaser rates or
interest holidays), and if the greater of either the resulting foregone interest
on the note or any "true" discount on the note (i.e., the excess of the note's
stated principal amount over its issue price) equals or exceeds a specified de
minimis amount, then the stated interest on the note would be treated as
original issue discount rather than qualified stated interest.

     Payments of qualified stated interest on a note are taxable to a U.S.
Holder as ordinary interest income at the time such payments are accrued or are
received (in accordance with the U.S. Holder's regular method of tax
accounting). A U.S. Holder of a Discount Note must include original issue
discount in income as ordinary interest for United States Federal income tax
purposes as it accrues under a constant yield method in advance of receipt of
the cash payments attributable to such income, regardless of the U.S. Holder's
regular method of tax accounting. In general, the amount of original issue
discount included in income by the initial U.S. Holder of a Discount Note is the
sum of the daily portions of original issue discount with respect to the
Discount Note for each day during the taxable year (or portion of the taxable
year) on which the U.S. Holder held the Discount Note. The "daily portion" of
original issue discount on any Discount Note is determined by allocating to each
day in any accrual period a ratable portion of the original issue discount
allocable to that accrual period. An "accrual period" may be of any length and
the accrual periods may vary in length over the term of the Discount Note,
provided that each accrual period is no longer than one year and each scheduled
payment of principal or interest occurs either on the final day of an accrual
period or on the first day of an accrual period. The amount of original issue
discount allocable to each accrual period is generally equal to the difference
between

     o    the product of the Discount Note's adjusted issue price at the
          beginning of such accrual period and its yield to maturity (determined
          on the basis of compounding at the close of each accrual period and
          appropriately adjusted to take into account the length of the
          particular accrual period) and

     o    the amount of any qualified stated interest payments allocable to such
          accrual period.

The "adjusted issue price" of a Discount Note at the beginning of any accrual
period is the sum of the issue price of the Discount Note plus the amount of
original issue discount allocable to all prior accrual periods minus the amount
of any prior payments on the Discount Note that were not qualified stated
interest payments. Under these rules, U.S. Holders generally will have to
include in income increasingly greater amounts of original issue discount in
successive accrual periods.

     A U.S. Holder who purchases a Discount Note for an amount that is greater
than its adjusted issue price as of the purchase date and less than or equal to
the sum of all amounts payable on the Discount Note after the purchase date
other than payments of qualified stated interest, will be considered to have
purchased the Discount Note at an "acquisition premium". Under the acquisition
premium rules, the amount of original issue discount which such U.S. Holder must
include in its gross income with respect to such Discount Note for any taxable
year (or portion thereof in which the U.S. Holder holds the Discount Note) will
be reduced (but not below zero) by the portion of the acquisition premium
properly allocable to the period.

     Under the OID Regulations, Floating Rate Notes and Indexed Notes
(hereinafter "Variable Notes") are subject to special rules whereby a Variable
Note will qualify as a "variable rate debt instrument" if

     o    its issue price does not exceed the total noncontingent principal
          payments due under the Variable Note by more than a specified de
          minimis amount and

     o    it provides for stated interest, paid or compounded at least annually,
          at current values of:

          o    one or more qualified floating rates,

          o    a single fixed rate and one or more qualified floating rates,

          o    a single objective rate, or

          o    a single fixed rate and a single objective rate that is a
               qualified inverse floating rate.

     A "qualified floating rate" is any variable rate where variations in the
value of such rate can reasonably be expected to measure contemporaneous
variations in the cost of newly borrowed funds in the currency in which the
Variable Note is denominated. Although a multiple of a qualified floating rate
will generally not itself constitute a qualified floating rate, a variable rate
equal to the product of a qualified floating rate and a fixed multiple that is
greater than .65 but not more than 1.35 will constitute a qualified floating
rate. A variable rate equal to the product of a qualified floating rate and a
fixed multiple that is greater than .65 but not more than 1.35, increased or
decreased by a fixed rate, will also constitute a qualified floating rate. In
addition, under the OID Regulations, two or more qualified floating rates that
can reasonably be expected to have approximately the same values throughout the
term of the Variable Note (e.g., two or more qualified floating rates with
values within 25 basis points of each other as determined on the Variable Note's
issue date) will be treated as a single qualified floating rate. Notwithstanding
the foregoing, a variable rate that would otherwise constitute a qualified
floating rate but which is subject to one or more restrictions such as a maximum
numerical limitation (i.e., a cap) or a minimum numerical limitation (i.e., a
floor) may, under certain circumstances, fail to be treated as a qualified
floating rate under the OID Regulations unless such cap or floor is fixed
throughout the term of the note. An "objective rate" is a rate that is not
itself a qualified floating rate but which is determined using a single fixed
formula that is based on objective financial or economic information. A rate
will not qualify as an objective rate if it is based on information that is
within the control of the issuer (or a related party) or that is unique to the
circumstances of the issuer (or a related party), such as dividends, profits, or
the value of the issuer's stock (although a rate does not fail to be an
objective rate merely because it is based on the credit quality of the issuer).
A "qualified inverse floating rate" is any objective rate where such rate is
equal to a fixed rate minus a qualified floating rate, as long as variations in
the rate can reasonably be expected to inversely reflect contemporaneous
variations in the qualified floating rate. The OID Regulations also provide that
if a Variable Note provides for stated interest at a fixed rate for an initial
period of one year or less followed by a variable rate that is either a
qualified floating rate or an objective rate and if the variable rate on the
Variable Note's issue date is intended to approximate the fixed rate (e.g., the
value of the variable rate on the issue date does not differ from the value of
the fixed rate by more than 25 basis points), then the fixed rate and the
variable rate together will constitute either a single qualified floating rate
or objective rate, as the case may be.

     If a Variable Note that provides for stated interest at either a single
qualified floating rate or a single objective rate throughout the term thereof
qualifies as a "variable rate debt instrument" under the OID Regulations, and if
the interest on a Variable Note is unconditionally payable in cash or property
(other than debt instruments of the issuer) at least annually, then all stated
interest on the Variable Note will constitute qualified stated interest and will
be taxed accordingly. Thus, a Variable Note that provides for stated interest at
either a single qualified floating rate or a single objective rate throughout
the term thereof and that qualifies as a "variable rate debt instrument" under
the OID Regulations will generally not be treated as having been issued with
original issue discount unless the Variable Note is issued at a "true" discount
(i.e., at a price below the Variable Note's stated principal amount) in excess
of a specified de minimis amount. The amount of qualified stated interest and
the amount of original issue discount, if any, that accrues during an accrual
period on such a Variable Note is determined under the rules applicable to fixed
rate debt instruments by assuming that the variable rate is a fixed rate equal
to

     (1)  in the case of a qualified floating rate or qualified inverse floating
          rate, the value as of the issue date, of the qualified floating rate
          or qualified inverse floating rate, or

     (2)  in the case of an objective rate (other than a qualified inverse
          floating rate), a fixed rate that reflects the yield that is
          reasonably expected for the Variable Note.

The qualified stated interest allocable to an accrual period is increased (or
decreased) if the interest actually paid during an accrual period exceeds (or is
less than) the interest assumed to be paid during the accrual period pursuant to
the foregoing rules.

     In general, any other Variable Note that qualifies as a "variable rate debt
instrument" will be converted into an "equivalent" fixed rate debt instrument
for purposes of determining the amount and accrual of original issue discount
and qualified stated interest on the Variable Note. The OID Regulations
generally require that such a Variable Note be converted into an "equivalent"
fixed rate debt instrument by substituting any qualified floating rate or
qualified inverse floating rate provided for under the terms of the Variable
Note with a fixed rate equal to the value of the qualified floating rate or
qualified inverse floating rate, as the case may be, as of the Variable Note's
issue date. Any objective rate (other than a qualified inverse floating rate)
provided for under the terms of the Variable Note is converted into a fixed rate
that reflects the yield that is reasonably expected for the Variable Note. In
the case of a Variable Note that qualifies as a "variable rate debt instrument"
and provides for stated interest at a fixed rate in addition to either one or
more qualified floating rates or a qualified inverse floating rate, the fixed
rate is initially converted into a qualified floating rate (or a qualified
inverse floating rate, if the Variable Note provides for a qualified inverse
floating rate). Under such circumstances, the qualified floating rate or
qualified inverse floating rate that replaces the fixed rate must be such that
the fair market value of the Variable Note as of the Variable Note's issue date
is approximately the same as the fair market value of an otherwise identical
debt instrument that provides for either the qualified floating rate or
qualified inverse floating rate rather than the fixed rate. Subsequent to
converting the fixed rate into either a qualified floating rate or a qualified
inverse floating rate, the Variable Note is then converted into an "equivalent"
fixed rate debt instrument in the manner described above.

     Once the Variable Note is converted into an "equivalent" fixed rate debt
instrument pursuant to the foregoing rules, the amount of original issue
discount and qualified stated interest, if any, are determined for the
"equivalent" fixed rate debt instrument by applying the general original issue
discount rules to the "equivalent" fixed rate debt instrument and a U.S. Holder
of the Variable Note will account for such original issue discount and qualified
stated interest as if the U.S. Holder held the "equivalent" fixed rate debt
instrument. Each accrual period appropriate adjustments will be made to the
amount of qualified stated interest or original issue discount assumed to have
been accrued or paid with respect to the "equivalent" fixed rate debt instrument
in the event that such amounts differ from the actual amount of interest accrued
or paid on the Variable Note during the accrual period.

     If a Variable Note does not qualify as a "variable rate debt instrument"
under the OID Regulations, then the Variable Note would be treated as a
contingent payment debt obligation. On June 11, 1996, the Treasury Department
issued final regulations (the "CPDI Regulations") concerning the proper United
States Federal income tax treatment of contingent payment debt instruments. In
general, the CPDI Regulations would cause the timing and character of income,
gain or loss reported on a contingent payment debt instrument to substantially
differ from the timing and character of income, gain or loss reported on a
contingent payment debt instrument under general principles of current United
States Federal income tax law. Specifically, the CPDI Regulations generally
require a U.S. Holder of such an instrument to include future contingent and
noncontingent interest payments in income as such interest accrues based upon a
projected payment schedule. Moreover, in general, under the CPDI Regulations,
any gain recognized by a U.S. Holder on the sale, exchange, or retirement of a
contingent payment debt instrument will be treated as ordinary income and all or
a portion of any loss realized could be treated as ordinary loss as opposed to
capital loss (depending upon the circumstances). The CPDI Regulations apply to
debt instruments issued on or after August 13, 1996. The proper United States
Federal income tax treatment of Variable Notes that are treated as contingent
payment debt obligations will be more fully described in the applicable pricing
supplement. Furthermore, any other special United States Federal income tax
considerations, not otherwise discussed herein, which are applicable to any
particular issue of notes will be discussed in the applicable pricing
supplement.

     ML&Co. may issue notes which;

     o    may be redeemable at the option of ML&Co. prior to their stated
          maturity (a "call option") and/or

     o    may be repayable at the option of the holder prior to their stated
          maturity (a "put option").

Notes containing such features may be subject to rules that differ from the
general rules discussed above. Investors intending to purchase notes with such
features should consult their own tax advisors, since the original issue
discount consequences will depend, in part, on the particular terms and features
of the purchased notes.

     U.S. Holders may generally, upon election, include in income all interest
(including stated interest, acquisition discount, original issue discount, de
minimis original issue discount, market discount, de minimis market discount,
and unstated interest, as adjusted by any amortizable bond premium or
acquisition premium) that accrues on a debt instrument by using the constant
yield method applicable to original issue discount, subject to certain
limitations and exceptions.

     FOREIGN-CURRENCY NOTES. The United States Federal income tax consequences
of the purchase, ownership and disposition of notes providing for payments
denominated in a currency other than U.S. dollars will be more fully described
in the applicable pricing supplement.

     SHORT-TERM NOTES. Notes that have a fixed maturity of one year or less
("Short-Term Notes") will be treated as having been issued with original issue
discount. In general, an individual or other cash method U.S. Holder is not
required to accrue such original issue discount unless the U.S. Holder elects to
do so. If such an election is not made, any gain recognized by the U.S. Holder
on the sale, exchange or maturity of the Short-Term Note will be ordinary income
to the extent of the original issue discount accrued on a straight-line basis,
or upon election under the constant yield method (based on daily compounding),
through the date of sale or maturity, and a portion of the deductions otherwise
allowable to the U.S. Holder for interest on borrowings allocable to the
Short-Term Note will be deferred until a corresponding amount of income is
realized. U.S. Holders who report income for United States Federal income tax
purposes under the accrual method, and certain other holders including banks and
dealers in securities, are required to accrue original issue discount on a
Short-Term Note on a straight-line basis unless an election is made to accrue
the original issue discount under a constant yield method (based on daily
compounding).

     MARKET DISCOUNT. If a U.S. Holder purchases a note, other than a Discount
Note, for an amount that is less than its issue price (or, in the case of a
subsequent purchaser, its stated redemption price at maturity) or, in the case
of a Discount Note, for an amount that is less than its adjusted issue price as
of the purchase date, such U.S. Holder will be treated as having purchased the
note at a "market discount", unless such market discount is less than a
specified de minimis amount.

     Under the market discount rules, a U.S. Holder will be required to treat
any partial principal payment (or, in the case of a Discount Note, any payment
that does not constitute qualified stated interest) on, or any gain realized on
the sale, exchange, retirement or other disposition of, a note as ordinary
income to the extent of the lesser of:

     o    the amount of such payment or realized gain or

     o    the market discount which has not previously been included in income
          and is treated as having accrued on the note at the time of such
          payment or disposition.

Market discount will be considered to accrue ratably during the period from the
date of acquisition to the maturity date of the note, unless the U.S. Holder
elects to accrue market discount on the basis of semiannual compounding.

     A U.S. Holder may be required to defer the deduction of all or a portion of
the interest paid or accrued on any indebtedness incurred or maintained to
purchase or carry a note with market discount until the maturity of the Note or
certain earlier dispositions, because a current deduction is only allowed to the
extent the interest expense exceeds an allocable portion of market discount. A
U.S. Holder may elect to include market discount in income currently as it
accrues (on either a ratable or semiannual compounding basis), in which case the
rules described above regarding the treatment as ordinary income of gain upon
the disposition of the note and upon the receipt of certain cash payments and
regarding the deferral of interest deductions will not apply. Generally, such
currently included market discount is treated as ordinary interest for United
States Federal income tax purposes. Such an election will apply to all debt
instruments acquired by the U.S. Holder on or after the first day of the taxable
year to which such election applies and may be revoked only with the consent of
the IRS.

     PREMIUM. If a U.S. Holder purchases a note for an amount that is greater
than the sum of all amounts payable on the note after the purchase date other
than payments of qualified stated interest, the U.S. Holder will be considered
to have purchased the note with "amortizable bond premium" equal in amount to
such excess. A U.S. Holder may elect to amortize such premium using a constant
yield method over the remaining term of the note and may offset interest
otherwise required to be included in respect of the note during any taxable year
by the amortized amount of such excess for the taxable year. However, if the
note may be optionally redeemed after the U.S. Holder acquires it at a price in
excess of its stated redemption price at maturity, special rules would apply
which could result in a deferral of the amortization of some bond premium until
later in the term of the note. Any election to amortize bond premium applies to
all taxable debt obligations then owned and thereafter acquired by the U.S.
Holder and may be revoked only with the consent of the IRS.

     DISPOSITION OF A NOTE. Except as discussed above, upon the sale, exchange
or retirement of a note, a U.S. Holder generally will recognize taxable gain or
loss equal to the difference between the amount realized on the sale, exchange
or retirement (other than amounts representing accrued and unpaid interest) and
the U.S. Holder's adjusted tax basis in the note. A U.S. Holder's adjusted tax
basis in a note generally will equal the U.S. Holder's initial investment in the
note increased by any original issue discount included in income (and accrued
market discount, if any, if the U.S. Holder has included such market discount in
income) and decreased by the amount of any payments, other than qualified stated
interest payments, received and amortizable bond premium taken with respect to
the note. Such gain or loss generally will be long-term capital gain or loss if
the note were held for more than one year. Long-term capital gains of
individuals are subject to reduced capital gain rates while short-term capital
gains are subject to ordinary income rates. The deductibility of capital losses
is subject to certain limitations. Prospective investors should consult their
own tax advisors concerning these tax law provisions.

NON-U.S. HOLDERS

     A non-U.S. Holder will not be subject to United States Federal income taxes
on payments of principal, premium (if any) or interest (including original issue
discount, if any) on a note, unless such non-U.S. Holder is a direct or indirect
10% or greater shareholder of ML&Co., a controlled foreign corporation related
to ML&Co. or a bank receiving interest described in section 881(c)(3)(A) of the
Code. To qualify for the exemption from taxation, the last United States payor
in the chain of payment prior to payment to a non-U.S. Holder (the "Withholding
Agent") must have received in the year in which a payment of interest or
principal occurs, or in either of the two preceding calendar years, a statement
that (1) is signed by the beneficial owner of the note under penalties of
perjury, (2) certifies that such owner is not a U.S. Holder and (3) provides the
name and address of the beneficial owner. The statement may be made on an IRS
Form W-8 or a substantially similar form, and the beneficial owner must inform
the Withholding Agent of any change in the information on the statement within
30 days of such change. If a note is held through a securities clearing
organization or certain other financial institutions, the organization or
institution may provide a signed statement to the Withholding Agent. However, in
such case, the signed statement must be accompanied by a copy of the IRS Form
W-8 or the substitute form provided by the beneficial owner to the organization
or institution. The Treasury Department is considering implementation of further
certification requirements aimed at determining whether the issuer of a debt
obligation is related to holders thereof.

     On October 6, 1997, the Treasury issued new regulations (the "New
Regulations") which make certain modifications to the withholding, backup
withholding and information reporting rules. The New Regulations attempt to
unify certification requirements and modify reliance standards. The New
Regulations will generally be effective for payments made after December 31,
1999, subject to certain transition rules. Prospective investors are urged to
consult their own tax advisors regarding the New Regulations.

     Generally, a non-U.S. Holder will not be subject to United States Federal
income taxes on any amount which constitutes capital gain upon retirement or
disposition of a note, provided the gain is not effectively connected with the
conduct of a trade or business in the United States by the non-U.S. Holder.
Certain other exceptions may be applicable, and a non-U.S. Holder should consult
its tax advisor in this regard.

     The notes will not be includible in the estate of a non-U.S. Holder unless
the individual is a direct or indirect 10% or greater shareholder of ML&Co. or,
at the time of such individual's death, payments in respect of the notes would
have been effectively connected with the conduct by such individual of a trade
or business in the United States.

BACKUP WITHHOLDING

   
     Backup withholding of United States Federal income tax at a rate of 31% may
apply to payments made in respect of the notes to registered owners who are not
"exempt recipients" and who fail to provide certain identifying information
,such as the registered owner's taxpayer identification number, in the required
manner.
    

     Generally, individuals are not exempt recipients, whereas corporations and
certain other entities generally are exempt recipients. Payments made in respect
of the notes to a U.S. Holder must be reported to the IRS, unless the U.S.
Holder is an exempt recipient or establishes an exemption. Compliance with the
identification procedures described in the preceding section would establish an
exemption from backup withholding for those non-U.S. Holders who are not exempt
recipients.

     In addition, upon the sale of a note to (or through) a broker, the broker
must withhold 31% of the entire purchase price, unless either:

     o    the broker determines that the seller is a corporation or other exempt
          recipient or

     o    the seller provides, in the required manner, certain identifying
          information and, in the case of a non-U.S. Holder, certifies that such
          seller is a non-U.S. Holder (and certain other conditions are met).

Such a sale must also be reported by the broker to the IRS, unless either:

     o    the broker determines that the seller is an exempt recipient or

     o    the seller certifies its non-U.S. status (and certain other conditions
          are met).

Certification of the registered owner's non-U.S. status would be made normally
on an IRS Form W-8 under penalties of perjury, although in certain cases it may
be possible to submit other documentary evidence. In addition, prospective U.S.
Holders are strongly urged to consult their own tax advisors with respect to the
New Withholding Regulations. See "United States Federal Income Taxation-Non-U.S.
Holders".

     Any amounts withheld under the backup withholding rules from a payment to a
beneficial owner would be allowed as a refund or a credit against such
beneficial owner's United States Federal income tax provided the required
information is furnished to the IRS.

                              PLAN OF DISTRIBUTION

     ML&Co. is offering the notes for sale on a continuing basis through the
agent, MLPF&S, who will purchase the notes, as principal, from ML&Co., for
resale to investors and other purchasers at varying prices relating to
prevailing market prices at the time of resale as determined by the agent, or,
if so specified in an applicable pricing supplement, for resale at a fixed
public offering price. Unless otherwise specified in an applicable pricing
supplement, any note sold to the agent as principal will be purchased by the
agent at a price equal to 100% of the principal amount of the note less a
percentage of the principal amount equal to the commission applicable to an
agency sale as described below of a note of identical maturity. If agreed to by
ML&Co. and the agent, the agent may utilize its reasonable efforts on an agency
basis to solicit offers to purchase the notes at 100% of the principal amount of
the notes, unless otherwise specified in an applicable pricing supplement.
ML&Co. will pay a commission to the agent, ranging from .050% to .600% of the
principal amount of a note, depending upon its stated maturity or, with respect
to a note for which the stated maturity is in excess of 30 years, a commission
as agreed upon by ML&Co. and the agent at the time of sale, sold through the
agent.

     The agent may sell notes it has purchased from ML&Co. as principal to other
dealers for resale to investors, and may allow any portion of the discount
received in connection with such purchases from ML&Co. to such dealers. After
the initial public offering of notes, the public offering price, in the case of
notes to be resold at a fixed public offering price, the concession and the
discount allowed to dealers may be changed.

     ML&Co. reserves the right to withdraw, cancel or modify the offer made by
this prospectus supplement without notice and may reject orders, in whole or in
part, whether placed directly with ML&Co. or through the agent. The agent will
have the right, in its discretion reasonably exercised, to reject in whole or in
part any offer to purchase notes received by the agent.

     Unless otherwise specified in an applicable pricing supplement, payment of
the purchase price of the notes will be required to be made in immediately
available funds in U.S. dollars or the Specified Currency, as the case may be,
in New York City on the date of settlement.

     No Note will have an established trading market when issued. Unless
specified in the applicable pricing supplement, ML&Co. will not list the notes
on any securities exchange. The agent may from time to time purchase and sell
notes in the secondary market, but the agent is not obligated to do so, and
there can be no assurance that there will be a secondary market for the notes or
liquidity in the secondary market if one develops. From time to time, the agent
may make a market in the notes.

     The agent may be deemed to be an "underwriter" within the meaning of the
Securities Act of 1933, as amended. ML&Co. has agreed to indemnify the agent
against or to make contributions relating to certain civil liabilities,
including liabilities under the Securities Act, or to contribute to payments the
agent may be required to make in respect thereof. ML&Co. has agreed to reimburse
the agent for certain expenses.

     From time to time, ML&Co. may issue and sell other securities described in
the accompanying prospectus, and the amount of notes that ML&Co. may offer and
sell under this prospectus supplement may be reduced as a result of such sales.

   
     In connection with the offering of notes purchased by the agent as
principal on a fixed price basis, the agent is permitted to engage in certain
transactions that stabilize the price of the notes. These transactions may
consist of bids or purchases for the purpose of pegging, fixing or maintaining
the price of the notes. If the agent creates a short position in the notes in
connection with the offering, i.e., if it sells notes in an aggregate principal
amount exceeding that set forth in the applicable pricing supplement, then the
agent may reduce that short position by purchasing notes in the open market. In
general, purchases of notes for the purpose of stabilization or to reduce a
short position could cause the price of the notes to be higher than in the
absence of these purchases.
    

     Neither ML&Co. nor the agent make any representation or prediction as to
the direction or magnitude of any effect that the transactions described above
may have on the price of the notes. In addition, neither ML&Co. nor the agent
makes any representation that the agent will engage in any such transactions or
that such transactions, once commenced, will not be discontinued without notice.

     The distribution of the notes will conform to the requirements set forth in
the applicable sections of Rule 2720 of the Conduct Rules of the NASD.

                              VALIDITY OF THE NOTES

     The validity of the notes will be passed upon for ML&Co. and the agent by
Brown & Wood LLP, New York, New York.


<PAGE>
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                                     [LOGO]

                                        $



                            MERRILL LYNCH & CO., INC.





                               MEDIUM-TERM NOTES,
                                    SERIES B



                        --------------------------------

                              PROSPECTUS SUPPLEMENT

                        --------------------------------




                               Merrill Lynch & Co.

                                           , 199






- --------------------------------------------------------------------------------

<PAGE>
   
The  information in this  prospectus is not complete and may be changed.  We may
not sell  these  securities  until the  registration  statement  filed  with the
Securities and Exchange Commission is effective. This prospectus is not an offer
to  sell  these  securities  and it is not  soliciting  an  offer  to buy  these
securities in any state where the offer or sale is not permitted.
    
                              Subject to Completion
   
                   Preliminary Prospectus dated March 29, 1999
    

PROSPECTUS
- ----------

                           MERRILL LYNCH & CO., INC.
                             SENIOR DEBT SECURITIES
   
     This  prospectus  is to be used by  Merrill  Lynch  & Co.,  Merrill  Lynch,
Pierce, Fenner & Smith Incorporated,  our wholly-owned  subsidiary,  when making
offers and sales related to market-making transactions in our outstanding senior
debt  securities  listed below and the senior debt securities that we will issue
in the future.
    
<TABLE>
                                Redeemable Notes
<CAPTION>
<S>                                                        <C>
$1,650,000,000  of 6% Notes due February 12, 2003;         $125,000,000 of 6 3/8% Notes due  September  8,  2006;
$150,000,000  of 7.05%  Notes  due  April  15,  2003;      $700,000,000  6 1/2% Notes due July 15, 2018;
$750,000,000  Floating Rate Notes due June 24,  2003;      $1,000,000,000  6 7/8% Notes due  November  15,  2018; and
   
$500,000,000  6% Notes due  November 15,  2004;            $33,015,000  of 8.40% Notes due November 1, 2019.
$500,000,000 6% Notes due July 15, 2005;
    
</TABLE>

<TABLE>
   
                              Non-Redeemable Notes
<CAPTION>
<S>                                                        <C>
$200,000,000 of 6 3/8% Notes due March 30, 1999;           $500,000,000 of 6.55% Notes due August 1, 2004;
$300,000,000 of 8 1/4% Notes due November 15, 1999;        $200,000,000 of 6 1/4% Notes due January 15, 2006;
$150,000,000 of 8 3/8% Notes due February 9, 2000;         $200,000,000  of 7% Notes due March 15,  2006;
$150,000,000  of 6.70% Notes due  August  1,  2000;        $350,000,000  of 7 3/8%  Notes  due May 15,  2006;
$500,000,000  of 6% Notes due January  15,  2001;          $500,000,000  of 7% Notes due January 15, 2007;
$250,000,000 of 6% Notes due March 1, 2001;                $150,000,000 of 8% Notes  due June 1,  2007;
$300,000,000  of 6 1/2%  Notes  due  April  1,  2001;      $250,000,000 of 6.56% Notes due December 16, 2007;
$225,000,000 of 8% Notes due February 1, 2002;             $250,000,000 of 7% Notes due April 27, 2008; 
$150,000,000 of 7 3/8% Notes due August 17,  2002;         $150,000,000  of 6 1/4% Notes due  October 15, 2008;
$250,000,000 of 6.64% Notes due September 19, 2002;        $500,000,000 of 6 3/8% Notes due October 15, 2008;
$300,000,000 of Floating Rate Notes due February 4, 2003;  $250,000,000 of 6 3/4% Notes due June 1, 2028; and
$200,000,000 of 6 7/8% Notes due March 1, 2003;            $2,000,000,000 of 6% Notes due February 17, 2009.
</TABLE>

     Neither the  Securities and Exchange  Commission  nor any state  securities
commission has approved or disapproved of these securities or determined if this
prospectus  is truthful or  complete.  Any  representation  to the contrary is a
criminal offense.
    

                              --------------------
                               Merrill Lynch & Co.

                              --------------------
                 The date of this prospectus is         , 199 .

<PAGE>
                                TABLE OF CONTENTS

   
MERRILL LYNCH & CO., INC.....................................................3
    

RATIO OF EARNINGS TO FIXED CHARGES...........................................4

   
DESCRIPTION OF SENIOR DEBT SECURITIES........................................4
   Redeemable Notes.........................................................11
   Non-Redeemable Notes.....................................................16
   Non-Redeemable Fixed Rate Notes..........................................16

OTHER TERMS.................................................................18
   Limitations Upon Liens...................................................18
   Limitation on Disposition of Voting Stock of, and
     Merger and Sale of Assets by, MLPF&S...................................18
   Merger and Consolidation.................................................18
   Modification and Waiver..................................................19
   Events of Default........................................................19

WHERE YOU CAN FIND MORE INFORMATION.........................................21

INCORPORATION OF INFORMATION WE FILE WITH THE SEC...........................22

PLAN OF DISTRIBUTION........................................................22

EXPERTS.....................................................................23
    


<PAGE>
   
                            MERRILL LYNCH & CO., INC.

     We are a holding company that,  through our U.S. and non-U.S.  subsidiaries
and  affiliates  such as Merrill  Lynch,  Pierce,  Fenner & Smith  Incorporated,
Merrill Lynch Government Securities Inc., Merrill Lynch Capital Services,  Inc.,
Merrill Lynch  International,  Merrill Lynch Capital Markets Bank Ltd.,  Merrill
Lynch Asset Management L.P. and Merrill Lynch Mercury Asset Management, provides
investment,  financing,  advisory,  insurance,  and related products on a global
basis, including:

     o    securities brokerage, trading and underwriting;

     o    investment  banking,   strategic   services,   including  mergers  and
          acquisitions and other corporate finance advisory activities;

     o    asset  management  and other  investment  advisory  and  recordkeeping
          services;

     o    trading and brokerage of swaps, options,  forwards,  futures and other
          derivatives;

     o    securities clearance services;

     o    equity, debt and economic research;

     o    banking,  trust and lending services,  including  mortgage lending and
          related services; and

     o    insurance sales and underwriting services.

     We  provide  these  products  and  services  to a wide  array  of  clients,
including individual  investors,  small businesses,  corporations,  governments,
governmental agencies and financial institutions.

     Our principal executive office is located at World Financial Center,  North
Tower, 250 Vesey Street, New York, New York 10281; our telephone number is (212)
449-1000.

     If you want to find more  information  about us,  please  see the  sections
entitled "Where You Can Find More Information" and "Incorporation of Information
We File with the SEC" in this prospectus.

     In this prospectus,  "ML&Co.",  "we", "us" and "our" refer  specifically to
Merrill Lynch & Co.,  Inc.,  the holding  company.  ML&Co.  is the issuer of the
senior debt securities described in this prospectus.
    

<PAGE>

                       RATIO OF EARNINGS TO FIXED CHARGES
   
         In 1998, we acquired the outstanding shares of Midland Walwyn, Inc., in
a transaction accounted for as a pooling-of-interests. The following information
for the fiscal years 1994 through 1997 has been  restated as if the two entities
had always been combined.

         The  following  table sets forth our  historical  ratios of earnings to
fixed charges for the periods indicated:

                                            YEAR ENDED LAST FRIDAY IN DECEMBER
                                             1994   1995   1996   1997   1998
                                             ----   ----   ----   ----   ----

Ratio of earnings to fixed charges(a)......   1.2    1.2    1.2    1.2   1.1
______________

(a)  The effect of combining  Midland Walwyn did not change the ratios  reported
     for the fiscal years 1994 through 1997.

     For the purpose of  calculating  the ratio of  earnings  to fixed  charges,
"earnings"  consist of earnings from continuing  operations  before income taxes
and  fixed  charges,  excluding  capitalized  interest  and  preferred  security
dividend  requirements.  "Fixed charges" consist of interest costs, the interest
factor in rentals,  amortization  of debt  issuance  costs,  preferred  security
dividend requirements of subsidiaries, and capitalized interest.
    

                      DESCRIPTION OF SENIOR DEBT SECURITIES

   
     The  senior  debt  securities  were  issued  as a  series  of  senior  debt
securities  under the 1983 Indenture,  dated as of April 1, 1983, as amended and
restated, between ML&Co. and The Chase Manhattan Bank, as trustee. A copy of the
1983 Indenture is filed as an exhibit to the registration  statement relating to
the senior debt  securities of which this  prospectus  is a part.  The following
summaries of certain  provisions of the 1983  Indenture are not complete and are
subject to, and qualified in their  entirety by reference to, all  provisions of
the 1983 Indenture, including the definitions of terms in the 1983 Indenture.

     Series of senior debt  securities may from time to time be issued under the
1983 Indenture,  without limitation as to aggregate  principal amount, in one or
more series and upon terms as ML&Co.  may establish  under the provisions of the
1983 Indenture.

     The 1983  Indenture  and each  series of the  senior  debt  securities  are
governed by and construed in accordance with the laws of the State of New York.

     Under present New York law the maximum rate of interest is 25% per annum on
a simple interest  basis.  This limit may not apply to senior debt securities in
which $2,500,000 or more has been invested.  While ML&Co. believes that New York
law would be given  effect by a state or Federal  court  sitting  outside of New
York, state laws frequently  regulate the amount of interest that may be charged
to and paid by a borrower, including, in some cases, corporate borrowers. ML&Co.
agrees for the  benefit of the  holders of its senior  debt  securities,  to the
extent  permitted  by law,  not to claim  voluntarily  the  benefits of any laws
concerning   usurious  rates  of  interest  against  a  holder  of  senior  debt
securities.

     Outstanding  senior debt  securities are issuable only in fully  registered
form without  coupons,  in  denominations  of $1,000 and  integral  multiples of
$1,000,  unless  otherwise  indicated.  No service  charge  will be made for any
registration of transfer or exchange of senior debt  securities,  but ML&Co. may
require  payment  of a sum  sufficient  to cover  any tax or other  governmental
charges that may be imposed in  connection  with any  registration,  transfer or
exchange.

     ML&Co.  may issue senior debt securities with terms different from those of
senior debt  securities  previously  issued,  and issue  additional  senior debt
securities of a previously issued series of senior debt securities.

     The senior debt  securities  are  unsecured and rank equally with all other
unsecured and unsubordinated indebtedness of ML&Co. However, because ML&Co. is a
holding company,  the rights of ML&Co. and its creditors,  including the holders
of senior debt  securities,  to participate in any distribution of the assets of
any  subsidiary  upon  its  liquidation  or   reorganization   or  otherwise  is
necessarily  subject to the prior claims of creditors of the subsidiary,  except
to the extent that claims of ML&Co.  itself as a creditor of the  subsidiary may
be  recognized.  In  addition,   dividends,  loans  and  advances  from  certain
subsidiaries,  including  MLPF&S,  to  ML&Co.  are  restricted  by  net  capital
requirements  under the Exchange  Act,  and under rules of  exchanges  and other
regulatory bodies.

     Principal,  premium  and  interest on the senior  debt  securities  will be
payable at the office of the trustee in New York City so  designated,   provided
that,  unless otherwise set forth below,  payment of interest may be made at the
option of ML&Co.  by check mailed to the address of the person  entitled to that
payment as shown on the  security  register.  In  addition,  the transfer of the
senior debt  securities is and will be  registrable,  and senior debt securities
are and will be exchangeable at the trustee's designated office.

     Unless  otherwise  specified with respect to a particular  series of senior
debt securities,  the senior debt securities are not subject to any sinking fund
and are not redeemable before maturity.
    

BOOK-ENTRY SECURITIES

   
     Specified  series of the senior debt  securities have been issued in global
form and are considered book-entry securities. Beneficial owners of these senior
debt securities will not receive  physical  delivery of these securities nor may
they be  entitled  to have these  securities  registered  in their  name.  These
book-entry  securities are  represented by one or more fully  registered  global
securities.  Each global  security has been deposited with, or on behalf of, The
Depository  Trust Company,  also known as DTC, as depositary,  registered in the
name of DTC or its  nominee.  Unless  and until it is  exchanged  in whole or in
part for senior debt  securities in definitive  form, no global  security may be
transferred  except as a whole by the  depositary to a nominee of the depositary
or by a nominee of the  depositary to the  depositary or another  nominee of the
depositary or by the  depositary or any nominee to a successor of the depositary
or a nominee of that successor.

     In some cases, investors of outstanding senior debt securities have elected
to hold  interests  in the global notes  through  either the  depositary  in the
United States or Cedelbank,  societe anonyme,  and Morgan Guaranty Trust Company
of New York,  Brussels Office,  as operator of the Euroclear System, if they are
participants in these systems,  or indirectly  through  organizations  which are
participants in these systems.  Cedelbank and Euroclear hold interests on behalf
of their participants through customers'  securities accounts in Cedelbank's and
Euroclear's names on the books of their respective  depositaries,  which in turn
will hold these interests in customers' securities accounts in the depositaries'
names on the books of the  depositary.  Citibank,  N.A. acts as  depositary  for
Cedelbank and The Chase Manhattan Bank acts as depositary for Euroclear.

     DTC PROCEDURES

     DTC is a limited-purpose trust company organized under the New York Banking
Law, a "banking  organization" within the meaning of the New York Banking Law, a
member of the  Federal  Reserve  System,  a  "clearing  corporation"  within the
meaning  of the New  York  Uniform  Commercial  Code,  and a  "clearing  agency"
registered  pursuant to the  provisions  of Section 17A of the Exchange Act. DTC
holds  securities that its  participants  deposit with DTC. DTC also facilitates
the settlement among participants of securities transactions,  such as transfers
and pledges, in deposited securities through electronic  computerized book-entry
changes in  participants'  accounts,  thereby  eliminating the need for physical
movement  of  securities  certificates.   Direct  participants  of  DTC  include
securities brokers and dealers,  banks, trust companies,  clearing  corporations
and  certain  other  organizations.  DTC is  owned  by a  number  of its  direct
participants  and by the New York  Stock  Exchange,  Inc.,  the  American  Stock
Exchange Inc. and the National Association of Securities Dealers, Inc. Access to
DTC's system is also available to others such as securities brokers and dealers,
banks  and  trust   companies   that  clear  through  or  maintain  a  custodial
relationship with a direct participant, either directly or indirectly. The rules
applicable to DTC and its participants are on file with the SEC.

     Purchases  of  securities  under  DTC's  system  must be made by or through
direct  participants,  which will receive a credit for the  securities  on DTC's
records.  The  ownership  interest  of each  beneficial  owner  is in turn to be
recorded on the records of direct and indirect  participants.  Beneficial owners
will not receive written confirmation from DTC of their purchase, but beneficial
owners are expected to receive written  confirmations  providing  details of the
transaction,  as well as periodic statements of their holdings,  from the direct
participants or indirect participants through which the beneficial owner entered
into the transaction.  Transfers of ownership interests in the securities are to
be accomplished by entries made on the books of participants acting on behalf of
beneficial owners.

     To facilitate subsequent  transfers,  all securities deposited with DTC are
registered in the name of DTC's partnership  nominee,  Cede & Co. The deposit of
securities  with DTC and their  registration in the name of Cede & Co. effect no
change in beneficial  ownership.  DTC has no knowledge of the actual  beneficial
owners of the securities;  DTC's records reflect only the identity of the direct
participants to whose accounts the securities are credited, which may or may not
be the beneficial  owners.  The participants are responsible for keeping account
of their holdings on behalf of their customers.

     Conveyance   of  notices  and  other   communications   by  DTC  to  direct
participants, by direct participants to indirect participants, and by direct and
indirect  participants to beneficial  owners are governed by arrangements  among
them,  subject to any statutory or regulatory  requirements  as may be in effect
from time to time.

     Neither  DTC nor  Cede & Co.  will  consent  or vote  with  respect  to the
securities.  Under its usual procedures, DTC mails an omnibus proxy to ML&Co. as
soon as possible  after the  applicable  record date.  The omnibus proxy assigns
Cede & Co.'s consenting or voting rights to those direct participants identified
in a listing  attached to the omnibus proxy to whose accounts the securities are
credited on the record date.

     Principal, premium, if any, and/or interest, if any, payments on the senior
debt  securities  will be made in  immediately  available  funds  to DTC.  DTC's
practice is to credit direct  participants'  accounts on the applicable  payment
date in accordance  with their  respective  holdings  shown on the  Depositary's
records  unless DTC has reason to believe  that it will not  receive  payment on
that date.  Payments by  participants  to beneficial  owners will be governed by
standing  instructions and customary  practices,  as is the case with securities
held for the  accounts  of  customers  in bearer form or  registered  in "street
name",  and will be the  responsibility  of that participant and not of DTC, the
trustee or ML&Co., subject to any statutory or regulatory requirements as may be
in effect  from time to time.  Payment of  principal,  premium,  if any,  and/or
interest,  if  any,  to DTC is the  responsibility  of  ML&Co.  or the  trustee,
disbursement of these payments to direct  participants is the  responsibility of
DTC,  and  disbursement  of  these  payments  to the  beneficial  owners  is the
responsibility of direct and indirect participants.

     EXCHANGE FOR CERTIFICATED SECURITIES

     If the  depositary  is at any time  unwilling  or  unable  to  continue  as
depositary and

     (a)  a successor depositary is not appointed by ML&Co. within 60 days,

     (b)  ML&Co.  executes  and  delivers to the trustee a company  order to the
          effect that the global notes shall be exchangeable, and

     (c)  an Event of  Default  under the 1983  Indenture  has  occurred  and is
          continuing with respect to the senior debt securities,

the global notes will be  exchangeable  for senior debt securities in definitive
form of like tenor and of an equal aggregate  principal amount, in denominations
of $1,000 and integral  multiples of $1,000.  The definitive  securities will be
registered in the name or names as the depositary shall instruct the trustee. It
is expected that these instructions may be based upon directions received by the
depositary from participants  with respect to ownership of beneficial  interests
in the global notes.

     In  addition,  ML&Co.  may  decide  to  discontinue  use of the  system  of
book-entry  transfers  through  the  depositary.  In  that  event,  senior  debt
securities in definitive form will be printed and delivered.

     The  information  in this section  concerning DTC and DTC's system has been
obtained from sources that ML&Co.  believes to be reliable,  but ML&Co. takes no
responsibility for its accuracy.

     CEDELBANK

     Cedelbank  has advised  ML&Co.  that it is  incorporated  under the laws of
Luxembourg as a  professional  depositary.  Cedelbank  holds  securities for its
participating  organizations  and  facilities  the clearance  and  settlement of
securities   transactions  between  Cedelbank  participants  through  electronic
book-entry changes in accounts of Cedelbank  participants,  thereby  eliminating
the need for  physical  movement  of  certificates.  Cedelbank  provides  to its
participants,  among other  things,  services for  safekeeping,  administration,
clearance and  settlement of  internationally  traded  securities and securities
lending and borrowing.  Cedelbank  interfaces  with domestic  markets in several
countries. As a professional  depositary,  Cedelbank is subject to regulation by
the  Luxembourg  Monetary  Institute.   Cedelbank  participants  are  recognized
financial  institutions  around the world,  including  underwriters,  securities
brokers and dealers,  banks, trust companies,  clearing corporations and certain
other  organizations.  Indirect access to Cedelbank is also available to others,
such as banks,  brokers,  dealers  and trust  companies  that  clear  through or
maintain a custodial  relationship with a Cedelbank  participant either directly
or indirectly.

     Distributions  with respect to the book-entry  securities held beneficially
through  Cedelbank  are credited to cash accounts of Cedelbank  participants  in
accordance  with its rules and  procedures,  to the extent  received by the U.S.
depositary for Cedelbank.

     EUROCLEAR

     Euroclear has advised ML&Co. that it was created in 1968 to hold securities
for  participants  of  Euroclear  and to clear and settle  transactions  between
Euroclear  participants  through  simultaneous  electronic  book-entry  delivery
against  payment,   thereby  eliminating  the  need  for  physical  movement  of
certificates and any risk from lack of simultaneous  transfers of securities and
cash.  Euroclear includes various other services,  including  securities lending
and  borrowing  and  interfaces  with  domestic  markets in  several  countries.
Euroclear is operated by the Brussels,  Belgium office of Morgan  Guaranty Trust
Company of New York (the "Euroclear  Operator"),  under contract with Euro-clear
Clearance Systems S.C., a Belgian cooperative  corporation (the  "Cooperative").
All  operations  are  conducted by the  Euroclear  Operator,  and all  Euroclear
securities  clearance accounts and Euroclear cash accounts are accounts with the
Euroclear Operator, not the Cooperative.  The Cooperative establishes policy for
Euroclear on behalf of Euroclear  participants.  Euroclear  participants include
banks,  central  banks,  securities  brokers and dealers and other  professional
financial  intermediaries.  Indirect  access to Euroclear  is also  available to
other  firms that clear  through or  maintain a  custodial  relationship  with a
Euroclear participant, either directly or indirectly.
    

     The  Euroclear  Operator  is  the  Belgian  branch  of a New  York  banking
corporation which is a member bank of the Federal Reserve System. As such, it is
regulated and examined by the Board of Governors of the Federal  Reserve  System
and the New  York  State  Banking  Department,  as well as the  Belgian  Banking
Commission.

   
     Securities clearance accounts and cash accounts with the Euroclear Operator
are governed by the Terms and  Conditions  Governing  Use of  Euroclear  and the
related Operating Procedures of the Euroclear System, and applicable Belgian law
(collectively,  the "Terms and  Conditions").  The Terms and  Conditions  govern
transfers of securities and cash within Euroclear, withdrawals of securities and
cash from  Euroclear,  and receipts of payments  with respect to  securities  in
Euroclear.  All  securities  in Euroclear  are held on a fungible  basis without
Terms and Conditions only on behalf of Euroclear participants, and has no record
of or relationship with persons holding through Euroclear participants.

     Distributions  with  respect to  book-entry  securities  held  beneficially
through Euroclear are credited to the cash accounts of Euroclear participants in
accordance  with the Terms and  Conditions,  to the extent  received by the U.S.
depositary for Euroclear.
    

CLEARANCE AND SETTLEMENT PROCEDURES

   
     Secondary  market  trading  between  DTC  participants  will  occur  in the
ordinary way in accordance  with the  depositary's  rules and will be settled in
immediately  available funds using the  depositary's  Same-Day Funds  Settlement
System. Secondary market trading between Cedelbank participants and/or Euroclear
participants  will occur in the ordinary way in accordance  with the  applicable
rules and  operating  procedures  of Cedelbank and Euroclear and will be settled
using  the  procedures  applicable  to  conventional  eurobonds  in  immediately
available funds.

     Cross-market  transfers  between  persons  holding  directly or  indirectly
through the  depositary  on the one hand,  and  directly or  indirectly  through
Cedelbank  or  Euroclear  participants,  on the other,  will be  effected in the
depositary in accordance with the  depositary's  rules on behalf of the relevant
European  international  clearing system by its U.S.  depositary;  however,  any
cross-market  transactions will require delivery of instructions to the relevant
European  international  clearing  system by the  counterparty in that system in
accordance with its rules and procedures and within its  established  deadlines.
The relevant  European  international  clearing  system will, if the transaction
meets its settlement  requirements,  deliver instructions to its U.S. depositary
to take  action to effect  final  settlement  on its  behalf  by  delivering  or
receiving  book-entry  securities  in the  depositary,  and making or  receiving
payment in  accordance  with normal  procedures  for same-day  funds  settlement
applicable  to the  depositary.  Cedelbank and  Euroclear  participants  may not
deliver instructions directly to the depositary.

     Because of time-zone differences, credits of book-entry securities received
in Cedelbank or Euroclear as a result of a  transaction  with a DTC  participant
will be made during  subsequent  securities  settlement  processing  and will be
credited on the business day  following  the  depositary  settlement  date.  Any
credits or transactions in book-entry  securities settled during processing will
be reported to the relevant Euroclear or Cedelbank participants on that business
day.  Cash received in Cedelbank or Euroclear as a result of sales of securities
by or  through a  Cedelbank  participant  or a  Euroclear  participant  to a DTC
participant  will be received with value on the depositary  settlement  date but
will be available in the relevant Cedelbank or Euroclear cash account only as of
the business day following settlement in the depositary.

     Although  the  depositary,  Cedelbank  and  Euroclear  have  agreed  to the
foregoing procedures in order to facilitate  transfers of book-entry  securities
among participants of the depositary, Cedelbank and Euroclear, they are under no
obligation  to  perform  or  continue  to  perform  these  procedures  and these
procedures may be discontinued at any time.
    

NOTICES

   
     Notices to holders of outstanding  senior debt  securities  will be sent by
mail to the registered holders and will be published, whether the securities are
in global or definitive  form,  and so long as the  securities are listed on the
Luxembourg  Stock  Exchange,  in a daily  newspaper  of general  circulation  in
Luxembourg.  It is expected that  publication  will be made in Luxembourg in the
Luxembourg  Wort.  Any notice  shall be deemed to have been given on the date of
publication  or,  if  published  more  than  once,  on the  date  of  the  first
publication.  So long as senior  debt  securities  are listed on the  Luxembourg
Stock  Exchange,  any change in the  Luxembourg  Paying Agent and Transfer Agent
will be published in Luxembourg in the manner set forth above.
    

FURTHER ISSUES

   
     ML&Co.  may from  time to time,  without  notice to or the  consent  of the
registered holders of any series of outstanding  senior debt securities,  create
and issue  additional  senior debt securities  ranking equally with the original
series of senior  debt  securities  in all  respects  other than the  payment of
interest accruing before the originally issue date of the additional senior debt
securities. The new issue of senior debt securities may be consolidated and form
a single  series with the original  issue of the  securities  of that series and
have the same terms as to status,  redemption  or  otherwise  as the senior debt
securities of the original series.
    

PAYMENT OF ADDITIONAL AMOUNTS

   
     Unless  otherwise  stated,  ML&Co.  will,  subject  to the  exceptions  and
limitations  set forth  below,  pay as  additional  interest  on the senior debt
securities,  additional amounts in order for the net payment of the principal of
and  interest  on the senior  debt  securities  to a holder who is a  non-United
States  person,  after  deduction  for any present or future tax,  assessment or
other  governmental  charge of the United States of a political  subdivision  or
taxing  authority in or of any United States political  subdivision,  imposed by
withholding  with  respect  to the  payment,  will not be less  than the  amount
provided in the senior debt  securities  to be then due and  payable;  provided,
however,  that the  foregoing  obligation  to pay  additional  amounts shall not
apply:
    

     (1)  to any tax,  assessment,  or other governmental charge that is imposed
          or withheld solely by reason of the holder,  or a fiduciary,  settlor,
          beneficiary,  member or  shareholder of the holder if the holder is an
          estate, trust, partnership or corporation, or a person holding a power
          over an estate or trust  administered  by a  fiduciary  holder,  being
          considered as:

          (a)  being or having been present or engaged in a trade or business in
               the United States or having had a permanent  establishment in the
               United States;

   
          (b)  having a current or former  relationship  with the Untied States,
               including a  relationship  as a citizen or resident of the United
               States;
    

          (c)  being or  having  been a foreign  or  domestic  personal  holding
               company,  a passive  foreign  investment  company or a controlled
               foreign  corporation  with  respect  to the  United  States  or a
               corporation that has accumulated  earnings to avoid United States
               federal income tax;

   
          (d)  being or having been present a "10-percent shareholder" of ML&Co.
               as defined in section  871 (h)(3) of the United  States  Internal
               Revenue Code or any successor provisions; or
    

          (e)  being a bank  receiving  payments on an  extension of credit made
               pursuant to a loan agreement  entered into in the ordinary course
               of its trade or business.

   
     (2)  to any holder that is not the sole beneficial owner of the securities,
          or  any  portion  of  the  securities,  or  that  is  a  fiduciary  or
          partnership, but only to the extent that a beneficiary or settlor with
          respect  to  the  fiduciary,  a  beneficial  owner  or  member  of the
          partnership  would  not  have  been  entitled  to  the  payment  of an
          additional  amount had the beneficiary,  settlor,  beneficial owner or
          member received  directly its beneficial or distributive  share of the
          payment;

     (3)  to any tax,  assessment,  or other governmental charge that is imposed
          or withheld solely by reason of the failure of the holder or any other
          person to comply with  certification,  identification  or  information
          reporting requirements concerning the nationality, residence, identity
          or connection with the United States of the holder or beneficial owner
          of the security,  if compliance is required by statute,  by regulation
          of the United States  Treasury  Department or by an applicable  income
          tax treaty to which the United States is a party as a precondition  to
          exemption from tax, assessment or other governmental charge;

     (4)  to any tax,  assessment or other  governmental  charge that is imposed
          otherwise  than by  withholding  by ML&Co.  or a paying agent from the
          payment;
    

     (5)  to any tax, assessment or other governmental charge that is imposed or
          withheld  solely  by  reason  of  a  change  in  law,  regulation,  or
          administrative or judicial  interpretation that becomes effective more
          than 15 days after the payment  becomes due or is duly  provided  for,
          whichever occurs later;

     (6)  to any estate,  inheritance,  gift, sales, excise, transfer, wealth or
          personal property tax or similar tax, assessment or other governmental
          charge;

   
     (7)  to any tax,  assessment or other  governmental  charge  required to be
          withheld by any  payment  agent from any  payment of  principal  of or
          interest  on any senior  debt  security,  if that  payment can be made
          without any withholding by any other payment agent; or
    

     (8)  in the case of any  combination  of items (1), (2), (3), (4), (5), (6)
          and (7).

   
     Some of the outstanding  senior debt securities are subject in all cases to
any tax,  fiscal  or other  law or  regulation  or  administrative  or  judicial
interpretation   applicable   to  the  payments  due  and  payable.   Except  as
specifically  provided under this heading "--Payment of Additional  Amounts" and
under the heading "--Redemption for Tax Reasons", ML&Co. will not be required to
make any  payment  with  respect to any tax,  assessment  or other  governmental
charge imposed by any government or a political subdivision or taxing authority.

     As  used  under  this  heading   "--Payment  of  Additional   Amounts"  and
"--Redemption for Tax Reasons", the term "United States" means the United States
of  America,  including  the  States  and  the  District  of  Columbia,  and its
territories, its possessions and other areas subject to its jurisdiction.

     "United States person" means any individual who is a citizen or resident of
the  United  States,  a  corporation,  partnership  or other  entity  created or
organized  in or under the laws of the  United  States,  any state of the United
States or the District of Columbia, other than a partnership that is not treated
as a United States person under any applicable Treasury regulations,  any estate
the  income  of which is  subject  to  United  States  federal  income  taxation
regardless  of its source,  or any trust if a court within the United  States is
able to exercise primary  supervision over the  administration  of the trust and
one or more United States persons have the authority to control all  substantial
decision of the trust.  Notwithstanding  the preceding  sentence,  to the extent
provided in the Treasury regulations,  certain trusts in existence on August 20,
1996,  and  treated  as United  States  persons  before  that date that elect to
continue to be treated as United  States  persons  will also be a United  States
person.
    

     "Non-United  States  person"  means a  person  who is not a  United  States
person.

REDEMPTION FOR TAX REASONS

   
     As designated, some of the outstanding senior debt securities provide that,
if, as a result of any change in, or amendment to, the laws, or any  regulations
or rulings  promulgated  under those laws, of the United States or any political
subdivision or taxing authority in or of the United States, or any change in, or
amendments to, an official  position  regarding the applicable or interpretation
of those laws, regulations or rulings, which change or amendment is announced or
becomes  effective  on or after the date the  applicable  series of senior  debt
securities  were  initially  issued,  ML&Co.  becomes  or,  based upon a written
opinion of independent  counsel selected by ML&Co., will become obligated to pay
additional  amounts as described in this prospectus under the heading "--Payment
of Additional Amounts" with respect to those securities, then ML&Co. may, at its
option redeem,  as a whole,  but not in part, the securities on not less than 30
nor more than 60 days prior notice, at a redemption price equal to 100% of their
principal  amount,  together with interest  accrued but unpaid to the date fixed
for redemption.
    

TAX CONSIDERATIONS

   
     It is suggested that you should reach an investment  decision regarding the
senior debt securities  only after carefully  considering the suitability of the
senior debt securities in the light of your particular circumstances.
    

     You should also consider the tax consequences,  if any, of investing in the
Securities and should consult your tax advisor.

REDEEMABLE NOTES

   
TERMS AND PROVISIONS APPLICABLE TO EACH SERIES OF REDEEMABLE NOTES

     The specific terms and  provisions  applicable to each series of redeemable
notes of ML&Co.  are described below. The title of each series of the redeemable
notes designates the interest rate and maturity date of that series of notes.

     Each series of redeemable  notes bears interest at a specified rate payable
through  their stated  maturity date to the persons in whose names the notes are
registered on the record date preceding each interest  payment date as indicated
below.  If any interest  payment date or the stated maturity date falls on a day
that is not a Business Day, as defined below,  the related  payment of principal
or interest will be made on the next  succeeding  Business Day as if made on the
date the payment was due,  and no interest  will accrue on the amount so payable
for the period  from and after that  interest  payment  date or stated  maturity
date, as the case may be. Unless  otherwise  stated below,  "Business  Day" with
respect to any place of payment means each Monday, Tuesday, Wednesday,  Thursday
and Friday  which is not a day on which  banking  institutions  in that place of
payment are authorized or obligated by law to close.

     The  redeemable  notes are subject to redemption by ML&Co.  or repayment at
the option of their  holders  before  their stated  maturity  dates as indicated
below.  Beneficial  interests  in  any  redeemable  notes  that  are  book-entry
securities may be acquired, or subsequently  transferred,  only in denominations
of $1,000 and integral multiples of $1,000.
    

TERMS AND PROVISIONS OF 6% NOTES DUE FEBRUARY 12, 2003

   
     The stated maturity date for the 6% Notes due February 12, 2003 is February
12, 2003.

     These notes of this series bear  interest  from  February  12, 1998 and are
payable  semiannually on February 12 and August 12 of each year and at maturity,
to the persons in whose names the notes are  registered on the preceding July 29
and January 29, respectively.

     The notes of this series are not  subject to  redemption  by ML&Co.  before
maturity unless the events  described under the section  entitled  "--Redemption
for Tax Reasons" occur.

     In the event definitive  notes are issued,  the holders of these notes will
be able to receive  payments on the notes and effect  transfers  of the notes at
the offices of Chase  Manhattan Bank  Luxembourg S.A. or its successor as paying
agent in Luxembourg.

     ML&Co. has appointed Chase Manhattan Bank Luxembourg S.A. as a paying agent
in Luxembourg  with respect to this series of notes,  and as long as these notes
are listed on the Luxembourg Stock Exchange, ML&Co. will maintain a paying agent
in Luxembourg and any change in the  Luxembourg  paying agent and transfer agent
will be published in Luxembourg. See "--Notices".

TERMS AND PROVISIONS OF 7.05% NOTES DUE APRIL 15, 2003

     The 7.05%  Notes due April 15,  2003 will  mature on April 15,  2003 unless
redeemed earlier as provided below.

     The note of this series bear interest and are payable  semiannually on each
October 15 and April 15 to the persons in whose  names the notes are  registered
on the next preceding October 1 and April 1, respectively.

     The notes are  subject to  redemption  at the option of ML&Co.  on or after
April 15, 1998,  in whole or in part in  increments  of $1,000,  at a redemption
price of 100% of the  principal  amount of the notes to be redeemed plus accrued
interest to but excluding the date of redemption.  Notice of redemption  will be
given not less than 30 or more than 60 days  before  the date of  redemption  to
each holder of notes to be redeemed.

TERMS AND PROVISIONS OF FLOATING RATE NOTES DUE JUNE 24, 2003

     The Floating Rate Notes due June 24, 2003 will mature on June 24, 2003.

     The notes of this series are not  subject to  redemption  by ML&Co.  before
maturity unless the events described in the section entitled  "--Redemption  for
Tax Reasons" occur.

     In the event definitive  notes are issued,  the holders of these notes will
be able to receive  payments on the notes and effect  transfers  of the notes at
the offices of Chase  Manhattan Bank  Luxembourg S.A. or its successor as paying
agent in Luxembourg.

     ML&Co. has appointed Chase Manhattan Bank Luxembourg S.A. as a paying agent
in Luxembourg with respect to notes,  and as long as the notes are listed on the
Luxembourg Stock Exchange, ML&Co. will maintain a paying agent in Luxembourg and
any change in the  Luxembourg  paying agent and transfer agent will be published
in Luxembourg. See "--Notices".

     This series of notes bear interest from June 24, 1998 until their maturity,
payable in arrears on March 24, June 24,  September  24 and  December 24 of each
year and at maturity,  to the persons in whose names the Notes are registered on
the  preceding  March 9,  June 9,  September  9 and  December  9,  respectively;
provided,  however,  that  interest  payable at maturity  will be payable to the
person to whom  principal  shall be payable.  Interest  payable on each interest
payment date will include  interest  accrued from and including the first day of
the interest period relating to that interest  payment date to and including the
last day of that  interest  period.  Each interest  period  comprises the period
beginning on and  including  June 24, 1998 and ending on and  including  the day
preceding the first interest  payment date,  and,  thereafter,  each  successive
period  beginning on and including each interest  payment date and ending on and
including the day preceding the next succeeding interest payment date.

     With respect to this series of notes,  "Business  Day", with respect to any
place of  payment,  means any day,  other  than a Saturday  or  Sunday,  that is
neither a legal holiday nor a day on which banking institutions in that place of
payment are  authorized  or required by law,  regulation  or executive  order to
close, and which day is also a London Business Day.

     "London Business Day" means any day, other than a Saturday or a Sunday,  on
which  commercial  banks and foreign exchange markets settle payments in London,
England.

     The per annum rate of interest with respect to this series of notes will be
reset on each  interest  reset date and will be LIBOR plus 0.15%.  Each interest
payment date will be an interest reset date.

     The  interest  rate  applicable  to each  interest  period will be the rate
determined  on the  interest  determination  date  applicable  to that  interest
period.  The interest  determination  date applicable to any interest reset date
will be the second London Business Day preceding that interest reset date.

     With respect to each  interest  reset date,  "LIBOR" will be  determined by
MLPF&S as the calculation agent for an interest  determination  date and will be
the rate for deposits in United States dollars having a maturity of three months
beginning on the second London Business Day immediately  following that interest
determination  date that appears on Telerate Page 3750 as of 11:00 A.M.,  London
time, on that interest determination date.

     If fewer than two offered rates appear, or no rate appears,  as applicable,
the calculation  agent will request the principal London offices of each of four
major  reference  banks in the  London  interbank  market,  as  selected  by the
calculation  agent, to provide the Calculation  Agent with its offered quotation
for  deposits  in  United  States  dollars  having a  maturity  of three  months
beginning on the second London Business Day immediately  following that interest
determination   date,  to  prime  banks  in  the  London   interbank  market  at
approximately  11:00 A.M., London time, on that interest  determination date and
in a principal amount that is representative  for a single transaction in United
States  dollars in that  market at that  time.  If at least two  quotations  are
provided,  LIBOR  determined  on that  interest  determination  date will be the
arithmetic mean of those quotations.  If fewer than two quotations are provided,
LIBOR determined on that interest determination date will be the arithmetic mean
of the rates quoted at  approximately  11:00 A.M.,  in The City of New York,  on
that  interest  determination  date by three major banks in The City of New York
selected by the calculation  agent for loans in United States dollars to leading
European banks, having a maturity of three months and in a principal amount that
is  representative  for a single  transaction  in United States  dollars in that
market at that time;  provided,  however,  that if the banks so  selected by the
calculation  agent  are  not  quoting  as  mentioned  in  this  sentence,  LIBOR
determined on that interest  determination  date will be LIBOR in effect on that
interest determination date.

     "Telerate Page 3750" means page 3750 on the Bridge  Telerate,  or any other
service or services as may be nominated by the British Bankers'  Association for
the purpose of  displaying  London  interbank  offered  rates for United  States
dollars, for the purpose of displaying the London interbank rates of major banks
for United States dollars.

     Interest on this series of notes will be computed  and paid on the basis of
the actual number of days for which  interest  accrues in each  interest  period
divided by 360.

     All percentages resulting from any calculation on the notes will be rounded
to the nearest  one  hundred-thousandth  of a  percentage  point,  with five one
millionths  of  a  percentage   point  rounded  upwards  (e.g.,   9.876545%  (or
 .09876545))  would be rounded to 9.87655% (or .0987655),  and all dollar amounts
used in or resulting  from any  calculation  on the notes will be rounded to the
nearest cent, with one-half cent being rounded upward.

     ML&Co.  will  notify  the  Luxembourg  Stock  Exchange  or will  cause  the
Luxembourg  Stock  Exchange to be notified of the  interest  rate,  the interest
amount that will accrue,  and  commencement  and ending dates for each  interest
period as soon as practicable after the determination is made.

TERMS AND PROVISIONS OF 6% NOTES DUE NOVEMBER 15, 2004

     The 6% Notes due November 15, 2004 will mature on November 15, 2004.

     The notes of this series bear interest and are payable  semiannually on May
15 and November 15 of each year and at  maturity,  to the persons in whose names
the notes are registered on the preceding May 1 and November 1, respectively.

     The notes of this series are not  subject to  redemption  by ML&Co.  before
maturity unless the events described in the section entitled  "--Redemption  for
Tax Reasons" occur.

     In the event  definitive  notes are  issued,  the  holders  will be able to
receive  payments on the notes and effect  transfers of the notes at the offices
of Chase  Manhattan  Bank  Luxembourg  S.A. or its  successor as paying agent in
Luxembourg with respect to the notes.

     ML&Co. has appointed Chase Manhattan Bank Luxembourg S.A. as a paying agent
in Luxembourg with respect to the notes,  and as long as the notes are listed on
the Luxembourg Stock Exchange, ML&Co. will maintain a paying agent in Luxembourg
and any  change in the  Luxembourg  paying  agent  and  transfer  agent  will be
published in Luxembourg. See "--Notices".

TERMS AND PROVISIONS OF 6% NOTES DUE JULY 15, 2005

     The 6% Notes due July 15, 2005 will mature at par on July 15, 2005.

     The notes of this series bear  interest  and are  payable  semiannually  on
January  15 and July 15 of each year and at  maturity,  to the  persons in whose
names  the  notes  are  registered  on the  preceding  December  31 and June 30,
respectively.

     The notes of this series are not  subject to  redemption  by ML&Co.  before
maturity unless the events described in the section entitled  "--Redemption  for
Tax Reasons" occur.

     In the event  definitive  notes are  issued,  the  holders  will be able to
receive  payments on the notes and effect  transfers of the notes at the offices
of Chase  Manhattan  Bank  Luxembourg  S.A. or its  successor as paying agent in
Luxembourg with respect to the notes.

     ML&Co. has appointed Chase Manhattan Bank Luxembourg S.A. as a paying agent
in Luxembourg with respect to the notes,  and as long as the notes are listed on
the Luxembourg Stock Exchange, ML&Co. will maintain a paying agent in Luxembourg
and any  change in the  Luxembourg  paying  agent  and  transfer  agent  will be
published in Luxembourg. See "--Notices".

TERMS AND PROVISIONS OF 6  3/8% NOTES DUE SEPTEMBER 8, 2006

     The 6 3/8%  Notes due  September  8, 2006 will mature on  September 8, 2006
unless redeemed earlier as provided below.

     The notes of this series bear interest and are payable semiannually on each
March 8 and  September 8 to the persons in whose names the notes are  registered
on the preceding February 23 and August 23, respectively.

     The notes are  subject to  redemption  at the option of ML&Co.  on or after
September 8, 2003, in whole or in part in increments of $1,000,  at a redemption
price of 100% of the  principal  amount of the notes to be redeemed plus accrued
interest to but  excluding the date of  redemption.  Notice of redemption of the
notes  shall be given not less than 30 or more than 60 days  before  the date of
redemption to each holder of the notes to be redeemed.

TERMS AND PROVISIONS OF 6 1/2% NOTES DUE JULY 15, 2018

     The 6 1/2% Notes due July 15, 2018 will mature on July 15, 2018.

     The notes of this series bear  interest  and are  payable  semiannually  on
January  15 and July 15 of each year and at  maturity,  to the  persons in whose
names  the  notes  are  registered  on the  preceding  December  31 and June 30,
respectively.

     The notes of this series are not  subject to  redemption  by ML&Co.  before
maturity unless the events described in the section entitled  "--Redemption  for
Tax Reasons" occur.

     In the event  definitive  notes are  issued,  the  holders  will be able to
receive  payments on the notes and effect  transfers of the notes at the offices
of Chase  Manhattan  Bank  Luxembourg  S.A. or its  successor as paying agent in
Luxembourg with respect to the notes.

     ML&Co. has appointed Chase Manhattan Bank Luxembourg S.A. as a paying agent
in Luxembourg with respect to the notes,  and as long as the notes are listed on
the Luxembourg Stock Exchange, ML&Co. will maintain a paying agent in Luxembourg
and any  change in the  Luxembourg  paying  agent  and  transfer  agent  will be
published in Luxembourg. See "--Notices".

TERMS AND PROVISIONS OF 6 7/8% NOTES DUE NOVEMBER 15, 2018

     The 6 7/8% Notes due November 15, 2018 will mature on November 15, 2018.

     The notes of this series bear interest and are payable  semiannually on May
15 and November 15 of each year and at  maturity,  to the persons in whose names
the notes are registered on the preceding May 1 and November 1, respectively.

     The notes of this series are not  subject to  redemption  by ML&Co.  before
maturity unless the events described in the section entitled  "--Redemption  for
Tax Reasons" occur.

     In the event  definitive  notes are  issued,  the  holders  will be able to
receive  payments on the notes and effect  transfers of the notes at the offices
of Chase  Manhattan  Bank  Luxembourg  S.A. or its  successor as paying agent in
Luxembourg with respect to the notes.

     ML&Co. has appointed Chase Manhattan Bank Luxembourg S.A. as a paying agent
in Luxembourg with respect to the notes,  and as long as the notes are listed on
the Luxembourg Stock Exchange, ML&Co. will maintain a paying agent in Luxembourg
and any  change in the  Luxembourg  paying  agent  and  transfer  agent  will be
published in Luxembourg. See "--Notices".
    

TERMS AND PROVISIONS OF 8.40% NOTES DUE NOVEMBER 1, 2019

   
     The 8.40% Notes due November 1, 2019 will mature on November 1, 2019.

     The notes of this series bear interest and are payable semiannually on each
May 1 and November 1 to the persons in whose names the notes are  registered  on
the preceding April 15 and October 15, respectively.

     The notes are not redeemable by ML&Co.  before maturity unless  $20,000,000
or less of aggregate  principal  amount of the notes are  outstanding,  in which
case the notes are redeemable at any time on or after November 1, 1994, in whole
but not in part, on at least 15 days and not more than 60 days prior notice at a
redemption  price of 100% of principal amount of the notes plus accrued interest
to the date of redemption.
    


<PAGE>


   
NON-REDEEMABLE NOTES

     Each  series of  Non-Redeemable  Notes bears  interest at a specified  rate
payable  semiannually  through  maturity to the persons in whose names the notes
are registered on the regular record date preceding each interest  payment date.
The Non-Redeemable Notes are not subject to redemption by ML&Co. or repayment at
the option of their holders before their stated maturity dates, and are issuable
and transferable in denominations of $1,000 and any integral multiple of $1,000.
Beneficial interests in Non-Redeemable Notes that are book-entry  securities may
be acquired,  or subsequently  transferred,  only in denominations of $1,000 and
integral multiples of $1,000.  The title of each series of Non-Redeemable  Notes
designates  the interest  rate or interest  rate basis and maturity date of that
series of notes.
    

NON-REDEEMABLE FIXED RATE NOTES

   
<TABLE>
<CAPTION>

                 Series                           Interest Payment Dates               Regular Record Dates
                --------                          ----------------------               --------------------
<S>                                            <C>                                  <C>
6 3/8% Notes due March 30, 1999*                March 30 and September 30           March 15 and September 15
8 1/4% Notes due November 15, 1999              May 15 and November 15              May 1 and November 1
8 3/8% Notes due February 9, 2000*              February 9 and August 9             January 25 and July 25
6.70% Notes due August 1, 2000*                 February 1 and August 1             January 15 and July 15
6% Notes due January 15, 2001*                  January 15 and July 15              January 1 and July 1
6% Notes due March 1, 2001*                     March 1 and September 1             February 15 and August 15
6 1/2% Notes due April 1, 2001*                 April 1 and October 1               March 15 and September 15
8% Notes due February 1, 2002                   February 1 and August 1             January 15 and July 15
7 3/8% Notes due August 17, 2002*               February 17 and August 17           February 2 and August 2
6.64% Notes due September 19, 2002*             March 19 and September 19           March 4 and September 4
8.30% Notes due November 1, 2002                May 1 and November 1                April 15 and October 15
6% Notes due February 12, 2003*                 February 12 and August 12           January 29 and July 29
6 7/8% Notes due March 1, 2003*                 March 1 and September 1             February 15 and August 15
6.55% Notes due August 1, 2004*                 February 1 and August 1             January 15 and July 15
6 1/4% Notes due January 15, 2006*              January 15 and July 15              January 1 and July 1
7% Notes due March 15, 2006*                    March 15 and September 15           March 1 and September 1
7 3/8% Notes due May 15, 2006*                  May 15 and November 15              May 1 and November 1
7% Notes due January 15, 2007*                  January 15 and July 15              January 1 and July 1
8% Notes due June 1, 2007                       June 1 and December 1               May 15 and November 15
6.56% Notes due December 16, 2007*              June 16 and December 16             June 1 and December 1
7% Notes due April 27, 2008*                    April 27 and October 27             April 12 and October 12
6 1/4% Notes due October 15, 2008*              April 15 and October 15             March 31 and September 30
6 3/8% Notes due October 15, 2008*              April 15 and October 15             April 1 and October 1
6 3/4% Notes due June 1, 2028*                  June 1 and December 1               May 15 and November 15
6% Notes due February 17, 2009*                 February 1 and August 1             February 17 and August 17
    
</TABLE>

______________
*Book-Entry Securities

   
NON-REDEEMABLE FLOATING RATE NOTES  DUE FEBRUARY 4, 2003

     The  Floating  Rate Notes due  February  4, 2003 will mature on February 4,
2003.

     The notes of this series are not  subject to  redemption  by ML&Co.  before
their maturity.

     The notes bear  interest  payable in arrears on February 4, May 4, August 4
and November 4 of each year until maturity.    Interest payable on each interest
payment date will include  interest  accrued from and including the first day of
the interest period relating to that interest  payment date to and including the
last day of that  interest  period.  Each interest  period  comprises the period
beginning on and  including  the original  issue date of the notes and ending on
and  including  the  day  preceding  the  first  interest   payment  date,  and,
thereafter,  each  successive  period  beginning on and including  each interest
payment date and ending on and including  the day preceding the next  succeeding
interest payment date.

     With respect to this series of notes,  "Business  Day", with respect to any
place of  payment,  means any day,  other  than a Saturday  or  Sunday,  that is
neither a legal holiday nor a day on which banking institutions in that place of
payment are  authorized  or required by law,  regulation  or executive  order to
close, and which day is also a London Business Day.

     "London Business Day" means any day, other than a Saturday or a Sunday,  on
which  commercial  banks and foreign exchange markets settle payments in London,
England.

     The per annum rate of interest with respect to this series of notes will be
reset on each  interest  reset date and will be LIBOR plus 0.2%.  Each  interest
payment date will be an interest reset date.

     The  interest  rate  applicable  to each  interest  period will be the rate
determined  on the  interest  determination  date  applicable  to that  interest
period.  The interest  determination  date applicable to any interest reset date
will be the second London Business Day preceding that interest reset date.

     With respect to each  interest  reset date,  "LIBOR" will be  determined by
MLPF&S as the calculation agent for an interest  determination  date and will be
the rate for deposits in United States dollars having a maturity of three months
beginning on the second London Business Day immediately  following that interest
determination  date that appears on Telerate Page 3750 as of 11:00 A.M.,  London
time, on that interest determination date.

     If fewer than two offered rates appear, or no rate appears,  as applicable,
the calculation  agent will request the principal London offices of each of four
major  reference  banks in the  London  interbank  market,  as  selected  by the
calculation  agent, to provide the Calculation  Agent with its offered quotation
for  deposits  in  United  States  dollars  having a  maturity  of three  months
beginning on the second London Business Day immediately  following that interest
determination   date,  to  prime  banks  in  the  London   interbank  market  at
approximately  11:00 A.M., London time, on that interest  determination date and
in a principal amount that is representative  for a single transaction in United
States  dollars in that  market at that  time.  If at least two  quotations  are
provided,  LIBOR  determined  on that  interest  determination  date will be the
arithmetic mean of those quotations.  If fewer than two quotations are provided,
LIBOR determined on that interest determination date will be the arithmetic mean
of the rates quoted at  approximately  11:00 A.M.,  in The City of New York,  on
that  interest  determination  date by three major banks in The City of New York
selected by the calculation  agent for loans in United States dollars to leading
European banks, having a maturity of three months and in a principal amount that
is  representative  for a single  transaction  in United States  dollars in that
market at that time;  provided,  however,  that if the banks so  selected by the
calculation  agent  are  not  quoting  as  mentioned  in  this  sentence,  LIBOR
determined on that interest  determination  date will be LIBOR in effect on that
interest determination date.

     "Telerate Page 3750" means page 3750 on the Bridge  Telerate,  or any other
service or services as may be nominated by the British Bankers'  Association for
the purpose of  displaying  London  interbank  offered  rates for United  States
dollars, for the purpose of displaying the London interbank rates of major banks
for United States dollars.

     Interest on this series of notes will be computed  and paid on the basis of
the actual number of days for which  interest  accrues in each  interest  period
divided by the actual number of days in the relevant year.

     All percentages resulting from any calculation on the notes will be rounded
to the nearest  one  hundred-thousandth  of a  percentage  point,  with five one
millionths  of  a  percentage   point  rounded  upwards  (e.g.,   9.876545%  (or
 .09876545))  would be rounded to 9.87655% (or .0987655),  and all dollar amounts
used in or resulting  from any  calculation  on the notes will be rounded to the
nearest cent, with one-half cent being rounded upward.
    

                                   OTHER TERMS

LIMITATIONS UPON LIENS

   
     ML&Co.  may not,  and may not  permit  any  majority-owned  subsidiary  to,
create,  assume,  incur or permit to exist any  indebtedness  for borrowed money
secured  by a  pledge,  lien  or  other  encumbrance,  other  than  those  liens
specifically permitted by the 1983 Indenture, on the Voting Stock owned directly
or  indirectly  by  ML&Co.  of  any  majority-owned  subsidiary,  other  than  a
majority-owned  subsidiary  which,  at the time of the incurrence of the secured
indebtedness,  has a net worth of less than  $3,000,000,  unless the outstanding
senior  debt  securities  are  secured  equally  and  ratably  with the  secured
indebtedness.

     "Voting  Stock" is defined in the 1983  Indenture as the stock of the class
or classes having general voting power under ordinary  circumstances to elect at
least  a  majority  of  the  board  of  directors,  managers  or  trustees  of a
corporation  provided that, for the purposes of the 1983  Indenture,  stock that
carries only the right to vote  conditionally  on the  occurrence of an event is
not considered voting stock whether or not the event has happened.
    

LIMITATION  ON DISPOSITION OF VOTING STOCK OF, AND MERGER AND SALE OF ASSETS BY,
MLPF&S

   
     ML&Co. may not sell,  transfer or otherwise  dispose of any Voting Stock of
MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of its Voting
Stock,  unless,  after  giving  effect  to any  transaction,  MLPF&S  remains  a
Controlled Subsidiary.
    

     "Controlled  Subsidiary"  is  defined  in  the  1983  Indenture  to  mean a
corporation more than 80% of the outstanding shares of Voting Stock of which are
owned directly or indirectly by ML&Co.

     In addition, ML&Co. may not permit MLPF&S to:

     o    merge or  consolidate,  unless the  surviving  company is a Controlled
          Subsidiary, or

     o    convey or  transfer  its  properties  and assets  substantially  as an
          entirety, except to one or more Controlled Subsidiaries.

MERGER AND CONSOLIDATION

     ML&Co.  may  consolidate  or merge with or into any other  corporation  and
ML&Co. may sell,  lease or convey all or substantially  all of its assets to any
corporation, provided that:

     o    the  resulting  corporation,  if other than ML&Co.,  is a  corporation
          organized and existing  under the laws of the United States of America
          or any U.S. state and assumes all of ML&Co.'s obligations to:

          o    pay any amounts due and payable or  deliverable  with  respect to
               all the senior debt securities; and

   
          o    perform and observe of all of ML&Co.'s obligations under the 1983
               Indenture, and

    

     o    ML&Co.  or the  successor  corporation,  as the case  may be,  is not,
          immediately  after any  consolidation or merger,  in default under the
          1983 Indenture.

MODIFICATION AND WAIVER

   
     ML&Co.  and the  trustee may modify and amend the 1983  Indenture  with the
consent of holders of at least 66 2/3% in principal  amount of each  outstanding
series of senior debt securities affected.  However, without the consent of each
holder of any  outstanding  senior  debt  security  affected,  no  amendment  or
modification to the 1983 Indenture may:
    

     o    change  the  stated   maturity  date  of  the  principal  of,  or  any
          installment of interest or Additional  Amounts  payable on, any senior
          debt  security or any  premium  payable on  redemption,  or change the
          redemption price;

     o    reduce the principal amount of, or the interest or Additional  Amounts
          payable on, any senior debt security or reduce the amount of principal
          which could be declared  due and  payable  before the stated  maturity
          date;

     o    change  the place or  currency  of any  payment  of  principal  or any
          premium,  interest or  Additional  Amounts  payable on any senior debt
          security;

     o    impair the right to institute suit for the  enforcement of any payment
          on or with respect to any senior debt security;

     o    reduce the percentage in principal  amount of the  outstanding  senior
          debt  securities  of any  series,  the  consent  of whose  holders  is
          required to modify or amend the 1983 Indenture; or

     o    modify  the  foregoing   requirements  or  reduce  the  percentage  of
          outstanding senior debt securities necessary to waive any past default
          to less than a majority.

   
     No  modification  or  amendment of ML&Co.'s  Subordinated  Indenture or any
Subsequent  Indenture for subordinated  debt securities may adversely affect the
rights of any holder of ML&Co.'s senior indebtedness without the consent of each
holder  affected.  The  holders of at least a majority  in  principal  amount of
outstanding  senior  debt  securities  of any series may,  with  respect to that
series,  waive past defaults  under the 1983  Indenture and waive  compliance by
ML&Co.  with  provisions  in the  1983  Indenture,  except  as  described  under
"--Events of Default".
    

EVENTS OF DEFAULT

     Each of the following will be Events of Default with respect to senior debt
securities of any series:

     o    default in the payment of any interest or Additional  Amounts  payable
          when due and continuing for 30 days;

     o    default in the payment of any principal or premium when due;

     o    default in the deposit of any sinking fund payment, when due;

     o    default in the performance of any other obligation of ML&Co. contained
          in the 1983  Indenture for the benefit of that series or in the senior
          debt  securities of that series,  continuing for 60 days after written
          notice as provided in the 1983 Indenture;

     o    specified  events  in  bankruptcy,  insolvency  or  reorganization  of
          ML&Co.; and

     o    any other  Event of  Default  provided  with  respect  to senior  debt
          securities  of that series  which are not  inconsistent  with the 1983
          Indenture.

   
     If an Event of Default  occurs and is  continuing  for any series of senior
debt  securities,  other  than as a  result  of the  bankruptcy,  insolvency  or
reorganization  of  ML&Co.,  the  trustee  or the  holders  of at  least  25% in
principal  amount of the  outstanding  senior debt securities of that series may
declare  all  amounts,  or any lesser  amount  provided  for in the senior  debt
securities,  due and  payable or  deliverable  immediately.  At any time after a
declaration of acceleration has been made with respect to senior debt securities
of any  series  but before the  trustee  has  obtained a judgment  or decree for
payment  of  money,  the  holders  of a  majority  in  principal  amount  of the
outstanding senior debt securities of that series may rescind any declaration of
acceleration and its consequences,  if all payments due, other than those due as
a result of  acceleration,  have been made and all Events of  Default  have been
remedied or waived.
    

     Any Event of Default with respect to any series of debt  securities  may be
waived by the holders of a majority in principal amount or aggregate issue price
of the outstanding senior debt securities of that series, except a default:

     o    in the payment of any amounts due and payable or deliverable under the
          debt securities of that series; or

     o    in respect of an obligation or provision of the 1983  Indenture  which
          cannot  be  modified  under the terms of that  Indenture  without  the
          consent of each holder of each outstanding  security of each series of
          senior debt securities affected.

   
     The holders of a majority in  principal  amount of the  outstanding  senior
debt securities of a series may direct the time,  method and place of conducting
any proceeding  for any remedy  available to the trustee or exercising any trust
or power conferred on the trustee with respect to those senior debt  securities,
provided that any direction shall not be in conflict with any rule of law or the
1983 Indenture.  Before proceeding to exercise any right or power under the 1983
Indenture  at the  direction of the  holders,  the trustee  shall be entitled to
receive  from the holders  reasonable  security or  indemnification  against the
costs,  expenses and liabilities which might be incurred by it in complying with
any direction.

     The senior debt securities  issued under the 1983 Indenture do not have the
benefit of any cross-default provisions with other indebtedness of ML&Co.

     ML&Co. is required to furnish to the trustee annually a statement as to the
fulfillment by ML&Co. of all of its obligations under the 1983 Indenture.
    


<PAGE>


                       WHERE YOU CAN FIND MORE INFORMATION

     We file reports,  proxy statements and other  information with the SEC. Our
SEC  filings  are also  available  over the  Internet  at the  SEC's web site at
http://www.sec.gov.  You may also read and copy any document we file by visiting
the SEC's public  reference  rooms in Washington,  D.C., New York, New York, and
Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further information
about the public reference rooms. You may also inspect our SEC reports and other
information at the New York Stock Exchange, Inc., 20 Broad Street, New York, New
York 10005.

   
     We have filed a  registration  statement  on Form S-3 with the SEC covering
the senior debt  securities.  For further  information on ML&Co.  and the senior
debt  securities,  you  should  refer  to our  registration  statement  and  its
exhibits.  This prospectus summarizes material provisions of contracts and other
documents  that we refer you to.  Because the prospectus may not contain all the
information  that you may find  important,  you  should  review the full text of
these  documents.  We have included copies of these documents as exhibits to our
registration statement of which this prospectus is a part.
    


<PAGE>


                INCORPORATION OF INFORMATION WE FILE WITH THE SEC

     The SEC allows us to incorporate by reference the  information we file with
them, which means:

     o    incorporated documents are considered part of the prospectus;

     o    we can disclose important information to you by referring you to those
          documents; and

     o    information  that we file with the SEC will  automatically  update and
          supersede this incorporated information.

     We  incorporate  by reference the  documents  listed below which were filed
with the SEC under the Exchange Act:

     o    annual report on Form 10-K for the year ended December 25, 1998; and

     o    current reports on Form 8-K dated December 28, 1998, January 19, 1999,
          February 17, 1999,  February 18, 1999, February 22, 1999, February 23,
          1999 and March 26, 1999.

     We also  incorporate by reference  each of the following  documents that we
will file with the SEC after the date of this prospectus  until this offering is
completed or after the date of this initial  registration  statement  and before
the effectiveness of the registration statement:

     o    reports filed under Sections 13(a) and (c) of the Exchange Act;

     o    definitive  proxy or information  statements filed under Section 14 of
          the  Exchange  Act in  connection  with any  subsequent  stockholders'
          meeting; and

     o    any reports filed under Section 15(d) of the Exchange Act.

     You should rely only on information  contained or incorporated by reference
in this prospectus. We have not, and MLPF&S has not, authorized any other person
to provide you with different information. If anyone provides you with different
or inconsistent  information,  you should not rely on it. We are not, and MLPF&S
is not, making an offer to sell these securities in any  jurisdiction  where the
offer or sale is not permitted.

     You should  assume that the  information  appearing in this  prospectus  is
accurate  as of the  date of  this  prospectus  only.  Our  business,  financial
condition and results of operations may have changed since that date.

     You  may  request  a copy  of any  filings  referred  to  above  (excluding
exhibits),  at no cost, by contacting us at the following address:  Mr. Lawrence
M. Egan,  Jr.,  Corporate  Secretary's  Office,  Merrill Lynch & Co.,  Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.

                              PLAN OF DISTRIBUTION

     This prospectus has been prepared in connection with secondary sales of the
senior debt  securities and is to be used by MLPF&S when making offers and sales
related to market-making transactions in the senior debt securities.

     MLPF&S may act as principal or agent in these market-making transactions.

     The  distribution  of  the  senior  debt  securities  will  conform  to the
requirements  set forth in the  applicable  sections of Rule 2720 of the Conduct
Rules of the NASD.


<PAGE>


                                     EXPERTS

   
     The consolidated financial statements and the related financial statement
schedule  incorporated  in this prospectus by reference from the Annual Report
on Form 10-K of Merrill Lynch & Co., Inc. and  subsidiaries  have been audited
by Deloitte & Touche LLP,  independent  auditors,  as stated in their  reports
(which  express an  unqualified  opinion and which report on the  consolidated
financial  statements  includes  an  explanatory  paragraph  for the change in
accounting method for certain internal-use  software development costs), which
are  incorporated  herein  by  reference,  and have  been so  incorporated  in
reliance  upon the reports of such firm given upon their  authority as experts
in accounting and auditing.
    

<PAGE>

   
The information in this  prospectus is not complete and may be changed.  We may
not sell  these  securities  until the  registration  statement  filed with the
Securities  and Exchange  Commission  is effective.  This  prospectus is not an
offer to sell these  securities  and it is not soliciting an offer to buy these
securities in any state where the offer or sale is not permitted.
    

                             Subject to Completion
   
                  Preliminary Prospectus dated March 29, 1999
    

P R O S P E C T U S

                           MERRILL LYNCH & CO., INC.
                               MEDIUM-TERM NOTES

   
         Merrill  Lynch  &  Co.,   Merrill  Lynch,   Pierce,   Fenner  &  Smith
Incorporated, our wholly-owned subsidiary, will use this prospectus when making
offers  and  sales  related  to  market-making  transactions  in the  following
securities.


o    The final terms and conditions     o    The  notes  bear  interest  at
     of each  issue  of  notes  are          fixed or floating rates or may
     specified  in  the  applicable          not bear any interest.  If the
     pricing supplement.                     notes  bear   interest   at  a
                                             floating  rate,  the  floating
o    The notes are senior unsecured          rate is  based  on one or more
     debt securities of ML&Co.               indices  or  formulas  plus or
                                             minus   a  fixed   amount   or
o    The    notes    have    stated          multiplied by a factor.       
     maturities  of nine  months or                                        
     more  from the date  they were     o    Whether    the    notes    are
     originally issued.                      redeemable or repayable before
                                             their   maturity  and  whether
o    We will pay amounts due on the          they are subject to  mandatory
     notes in U.S.  dollars  or any          redemption,  redemption at the
     other consideration  described          option of ML&Co.  or repayment
     in  the   applicable   pricing          at the option of the holder of
     supplement.                             the notes is  specified in the
                                             applicable pricing supplement.
                                        

    
                                                            
   


                 INVESTING IN THE NOTES INVOLVES CERTAIN RISKS.
                         SEE "RISK FACTORS" ON PAGE 3.

         Neither  the  Securities   and  Exchange   Commission  nor  any  state
securities  commission  has  approved or  disapproved  of these  securities  or
determined if this prospectus is truthful or complete.  Any  representation  to
the contrary is a criminal offense.

         The sale price of the notes will be the prevailing market price at the
time of sale.
    


                              -------------------

                              MERRILL LYNCH & CO.
                              -------------------

   
                     The date of this prospectus is , 1999.
    


<PAGE>


   
                               TABLE OF CONTENTS


RISK FACTORS.................................................................  3

MERRILL LYNCH & CO., INC.....................................................  4

RATIO OF EARNINGS TO FIXED CHARGES...........................................  5

DESCRIPTION OF NOTES.........................................................  5

OTHER TERMS.................................................................. 13

WHERE YOU CAN FIND MORE INFORMATION.......................................... 17

INCORPORATION OF INFORMATION WE FILE WITH THE SEC............................ 17

PLAN OF DISTRIBUTION......................................................... 18

EXPERTS...................................................................... 18
    





<PAGE>



                                  RISK FACTORS

   
         Your   investment  in  the  notes  will  include   certain  risks.  In
consultation  with your own financial and legal advisers,  you should carefully
consider,  among  other  matters,  the  following  discussion  of risks  before
deciding  whether an investment in the notes is suitable for you. The notes are
not an appropriate  investment for you if you are unsophisticated  with respect
to the significant components of their relationship.

Structure Risks of Notes Indexed to Interest Rate, Currency or Other Indices
or Formulas 

         If you invest in notes indexed to one or more interest rate,  currency
or other indices or formulas,  there will be  significant  risks not associated
with a  conventional  fixed rate or floating  rate debt  security.  These risks
include  fluctuation  of the indices or formulas and the  possibility  that you
will receive a lower,  or no, amount of  principal,  premium or interest and at
different times than you expected. We have no control over a number of matters,
including  economic,  financial  and  political  events,  that are important in
determining  the  existence,  magnitude  and longevity of these risks and their
results.  In addition,  if an index or formula  used to  determine  any amounts
payable in respect of the notes contains a multiplier or leverage  factor,  the
effect of any  change in that  index or formula  will be  magnified.  In recent
years, values of certain indices and formulas have been volatile and volatility
in those and other indices and formulas may be expected in the future. However,
past experience is not necessarily indicative of what may occur in the future.

Redemption May Adversely Affect Your Return on the Notes

         If your notes are redeemable at our option or are otherwise subject to
mandatory redemption,  we may, in the case of optional redemption,  or must, in
the case of  mandatory  redemption,  choose to redeem  your notes at times when
prevailing  interest rates may be relatively  low.  Accordingly,  you generally
will not be able to reinvest the redemption  proceeds in a comparable  security
at an effective interest rate as high as that of the notes.

There May Be an Uncertain Trading  Market for Your Notes; Many Factors Affect
the Trading Value of Your Notes

         We cannot assure you a trading  market for your notes will continue to
exist. Many factors independent of our  creditworthiness may affect the trading
market of your notes. These factors include:

    o    the complexity  and  volatility of the index or formula  applicable to
         the notes,

    o    the method of  calculating  the  principal,  premium  and  interest in
         respect of the notes,

    o    the time remaining to the maturity of the notes,

    o    the outstanding amount of the notes,

    o    the redemption features of the notes,

    o    the  amount  of  other  securities  linked  to the  index  or  formula
         applicable to the notes, and

    o    the  level,   direction  and  volatility  of  market   interest  rates
         generally.

         In addition,  because some notes were designed for specific investment
objectives or strategies,  these notes will have a more limited  trading market
and experience more price  volatility.  There may be a limited number of buyers
for these notes.  This may affect the price you receive for these notes or your
ability to sell these notes at all.  You should not  purchase  notes unless you
understand and know you can bear the related investment risks.

 Our Credit Ratings May Not Reflect All Risks of an Investment in the Notes

         Our  credit  ratings  are an  assessment  of our  ability  to pay  our
obligations.  Consequently,  real or anticipated  changes in our credit ratings
will  generally  affect the market  value of your  notes.  Our credit  ratings,
however,  may not reflect the  potential  impact of risks related to structure,
market or other factors discussed above on the value of your notes.
    


                           MERRILL LYNCH & CO., INC.

   
         We  are  a  holding  company  that,  through  our  U.S.  and  non-U.S.
subsidiaries  and  affiliates  such as Merrill  Lynch,  Pierce,  Fenner & Smith
Incorporated,  Merrill Lynch Government  Securities Inc., Merrill Lynch Capital
Services, Inc., Merrill Lynch International, Merrill Lynch Capital Markets Bank
Ltd.,  Merrill  Lynch Asset  Management  L.P. and Merrill  Lynch  Mercury Asset
Management,  provides investment,  financing,  advisory, insurance, and related
products on a global basis, including:

    o    securities brokerage, trading and underwriting;

    o    investment  banking,   strategic   services,   including  mergers  and
         acquisitions and other corporate finance advisory activities;

    o    asset  management  and other  investment  advisory  and  recordkeeping
         services;

    o    trading and brokerage of swaps, options,  forwards,  futures and other
         derivatives;

    o    securities clearance services;

    o    equity, debt and economic research;

    o    banking,  trust and lending services,  including  mortgage lending and
         related services ; and

    o    insurance sales and underwriting services.

         We provide  these  products  and  services to a wide array of clients,
including individual investors,  small businesses,  corporations,  governments,
governmental agencies and financial institutions.

         Our principal  executive office is located at World Financial  Center,
North Tower,  250 Vesey Street,  New York, New York 10281; our telephone number
is (212) 449-1000.

         If you want to find more information about us, please see the sections
entitled  "Where  You  Can  Find  More   Information"  and   "Incorporation  of
Information We File with the SEC" in this prospectus.

         In this prospectus,  "ML&Co.", "we", "us" and "our" refer specifically
to Merrill Lynch & Co., Inc., the holding company.  ML&Co. is the issuer of the
notes described in this prospectus.
    




<PAGE>



                       RATIO OF EARNINGS TO FIXED CHARGES

   
         In 1998, we acquired the outstanding  shares of Midland Walwyn,  Inc.,
in a  transaction  accounted  for  as  a  pooling-of-interests.  The  following
information  for the fiscal years 1994 through 1997 has been restated as if the
two entities had always been combined.

         The following  table sets forth our  historical  ratios of earnings to
fixed charges for the periods indicated:
    



<TABLE>
<CAPTION>
                                               Year Ended Last Friday in December
   
<S>                                           <C>      <C>      <C>      <C>      <C> 
                                              1994     1995     1996     1997     1998
                                              ----     ----     ----     ----     ----

Ratio of earnings to fixed  charges(a).....   1.2      1.2      1.2      1.2      1.1
- ----------
(a)      The  effect of  combining  Midland  Walwyn  did not  change the ratios
         reported for the fiscal years 1994 through 1997.

     For the purpose of  calculating  the ratio of  earnings  to fixed  charges,
"earnings"  consist of earnings from continuing  operations  before income taxes
and  fixed  charges,  excluding  capitalized  interest  and  preferred  security
dividend  requirements.  "Fixed charges" consist of interest costs, the interest
factor in rentals,  amortization  of debt  issuance  costs,  preferred  security
dividend requirements of subsidiaries, and capitalized interest.
    
</TABLE>


                              DESCRIPTION OF NOTES

   
Terms of the Notes

         "Pricing  supplement",  as used herein, means a prospectus  supplement
relating to an individual issue of the notes, as filed with the SEC

         The terms and  conditions  described  below  apply to each note unless
otherwise specified in the applicable pricing supplement.

         Except as provided in the applicable pricing supplement, the notes are
denominated in U.S. dollars.  If provided in the applicable pricing supplement,
notes  may be  denominated  in a  foreign  currency  or in units of two or more
currencies ("Multi-Currency Notes").

         Except as provided in the applicable pricing supplement:

    o    the notes were issued only in fully registered form without coupons;

    o    floating rate notes and Zero Coupon Notes, as defined,  were issued in
         denominations  of $25,000 or any amount in excess of $25,000  which is
         an integral multiple of $1,000; and

    o    fixed  rate  notes  were  issued  in  denominations  of  $1,000 or any
         integral multiple in excess of $1,000.

         Unless otherwise specified in the applicable pricing supplement:

    o    principal and interest, if any, is payable;

    o    the transfer of the notes is registrable, and

    o    the  notes are  exchangeable  for notes  bearing  identical  terms and
         provisions,

at the  office  of the  trustee  in The  City of New York  designated  for such
purpose,  provided that ML&Co.,  at its option,  may pay  interest,  other than
interest  payable at maturity or on any date of  redemption  or  repayment,  by
check mailed to the address of the person  entitled to receive payment as shown
on the security register. ML&Co. will pay the principal and interest payable at
maturity or the date of  redemption  or repayment  on each note upon  maturity,
redemption or repayment,  as the case may be, in  immediately  available  funds
against  presentation  of the note at the office of the trustee  maintained for
that purpose.

         Notwithstanding  the preceding two sentences,  ML&Co. may pay interest
on a note which  bears  interest  at a  floating  rate at  maturity  or earlier
redemption or repayment by wire transfer of  immediately  available  funds to a
designated account maintained in the United States upon:

(1)               receipt of written  notice by the trustee  from the holder of
                  the applicable note not less than one Business Day before the
                  due date of the relevant principal payment; and

(2)               presentation of the note at the corporate trust office of the
                  trustee in the Borough of Manhattan, The City of New York, or
                  at any other place as ML&Co. may designate.

A holder of not less than  $1,000,000  aggregate  principal  amount of floating
rate notes may by written  notice to the trustee at the corporate  trust office
or at such other address as ML&Co. will give notice in writing not less than 15
days before an interest  payment date,  arrange to have the interest payable on
all notes held by that holder on the relevant  interest  payment date,  and all
subsequent interest payment dates until written notice to the contrary is given
to the  trustee,  made by wire  transfer of  immediately  available  funds to a
designated account maintained in the United States.

         Except as provided in the  applicable  pricing  supplement,  "Business
Day"  means any day that is not a Saturday  or Sunday and that,  in The City of
New York, is neither a legal  holiday nor a day on which  banking  institutions
are authorized or obligated by law or regulation to close.
    

REPAYMENT AT OPTION OF HOLDER

   
         If so  indicated  in  an  applicable  pricing  supplement,  notes  are
repayable  by ML&Co.  in whole or in part at the  option of the  holders of the
notes on their respective  optional repayment dates specified in the applicable
pricing supplement.  If no optional repayment date is indicated with respect to
a note, that note is not repayable at the option of the holder before maturity.
Any  repayment  in part  will be in  increments  of  $1,000  provided  that any
remaining  principal  amount  of the  applicable  note  will  be an  authorized
denomination  of the  applicable  note.  The  repurchase  price  for  any  note
repurchased  is  100% of the  principal  amount  to be  repaid,  together  with
interest payable to the date of repayment.

         Notwithstanding  anything  to the  contrary  in  this  prospectus,  if
repayable at the option of the holder,  a note is repayable only on an interest
payment date. If any optional  repayment  date specified with respect to a note
is not an interest  payment  date,  whether  because the payment  date is not a
Business Day or otherwise, the applicable repayment date will, instead of being
the date specified, be the interest payment date nearest the specified optional
repayment  date  whether  the  applicable  interest  payment  date  precedes or
succeeds the  specified  optional  repayment  date.  In the event that an equal
number of days separates a specified  optional repayment date and the preceding
interest  payment date, on the one hand,  and the succeeding  interest  payment
date, on the other hand,  the optional  repayment  date will be the  succeeding
interest payment date.

         In order for a note which is by its terms  repayable  at the option of
the holder to be repaid before maturity,  ML&Co.  must receive at the corporate
trust office of the trustee,  or at any other address of which ML&Co. will from
time to time  notify  the  holders of the  notes,  during  the period  from and
including the 20th Business Day preceding  the  applicable  optional  repayment
date up to and  including  the  close  of  business  on the 16th  Business  Day
preceding the applicable optional repayment date:

    (1)       the applicable note with the information  under the caption 
         "option to elect repayment" duly completed, or

    (2)       a telegram, telex, facsimile transmission or letter from a member
         of a national  securities  exchange  or the  National  Association  of
         Securities  Dealers,  Inc. or a commercial  bank or a trust company in
         the United States of America dated no later than the 16th Business Day
         preceding the applicable optional repayment date and setting forth the
         name of the holder of the note, the principal  amount of the note, the
         amount of the note to be repaid,  a statement that the option to elect
         repayment is being  exercised  and a guarantee  that the note with the
         information  required  under the caption  "option to elect  repayment"
         duly completed will be received at the  above-mentioned  office of the
         trustee,  not later  than the 5th  Business  Day after the date of the
         telegram,  telex,  facsimile  transmission  or letter  and note,  duly
         completed,  is  received  at the  office  of the  trustee  by the  5th
         Business Day.
         

         A  holder's  effective  exercise  of  the  repayment  option  will  be
irrevocable.  A holder of a note will not be  permitted to transfer or exchange
that note or, in the event that a note is to be repaid in part, that portion of
the note to be repaid, after exercise of the repayment option. ML&Co. will make
all  determinations   with  respect  to  all  questions  as  to  the  validity,
eligibility, including time of receipt and acceptance of any note for repayment
 . All such determinations will be final, binding and non-appealable. ML&Co. has
the right to offer for resale any note acquired by it pursuant to the foregoing
arrangements. Accordingly, ML&Co. may not satisfy the indebtedness evidenced by
any note repurchased by it by such repurchase.

REDEMPTION AT OPTION OF  ML&CO.

         The notes do not have a sinking fund but are  redeemable at the option
of ML&Co. if a redemption date is specified in the applicable  notes and in the
applicable   pricing   supplement.   If  indicated  in  an  applicable  pricing
supplement,  the notes are subject to redemption  by ML&Co.  on and after their
respective redemption dates specified in the applicable pricing supplement.  On
and after the redemption  date, if any, the related note is redeemable in whole
or in part at the  option of ML&Co.  on notice  given not more than 60 nor less
than 30 days before the date of redemption in the case of fixed rate notes,  or
on  notice  given not more  than 30 nor less  than 15 days  before  the date of
redemption in the case of floating rate notes.  Any  redemption in part will be
in increments of $1,000  provided  that any remaining  principal  amount of the
applicable note will be an authorized  denomination of the applicable note. The
redemption  price is  equal to 100% of the  principal  amount  to be  redeemed,
together with interest payable to the date of redemption.  Notwithstanding  the
above, however, floating rate notes, if redeemable at the option of ML&Co., are
redeemable only on interest  payment dates occurring on or after the applicable
redemption dates.
    

INTEREST RATE

   
         Each note bears  interest  at the rate per annum,  or  pursuant to the
interest  rate formula,  stated in the  applicable  note and in the  applicable
pricing  supplement  until the principal of the note is paid or made  available
for payment.  Interest is payable on each interest payment date and at maturity
or, if  applicable,  upon  redemption or repayment.  Interest is payable to the
person  in whose  name a note is  registered  at the close of  business  on the
regular  record date next  preceding  each  interest  payment  date;  provided,
however,  interest  payable at maturity or, if applicable,  upon  redemption or
repayment  will be  payable to the person to whom  principal  will be  payable.
Except as provided in the applicable pricing supplement, Merrill Lynch, Pierce,
Fenner & Smith  Incorporated , referred to in this prospectus as MLPF&S, is the
calculation agent with respect to floating rate notes.

         Each  floating  rate  note  bears  interest  at  rates  determined  by
reference  to an interest  rate  formula,  which may be adjusted by a Spread or
Spread  Multiplier , each as defined below,  unless otherwise  specified in the
applicable  note.  A  floating  rate note may also  have  either or both of the
following:

    o    a maximum limitation,  or ceiling, on the rate at which interest which
         may accrue during any interest period; and
    

    o    a minimum  limitation,  or floor,  on the rate at which interest which
         may accrue during any interest period.

   
         The applicable  pricing  supplement  designates either a fixed rate of
interest per annum payable on the applicable  note, in which case the note is a
fixed rate note,  or one of the  following  base rates,  as  applicable  to the
relevant floating rate note:

    o    the  commercial  paper  index  rate,  in  which  case  the  note  is a
         Commercial Paper Index Rate Note,

    o    the federal funds rate, in which case the note is a Federal Funds Rate
         Note,

    o    the prime rate, in which case the note is a Prime Rate Note,

    o    the treasury  index rate,  in which case the note is a Treasury  Index
         Rate Note,

    o    LIBOR, in which case the note is a LIBOR Note, or

    o    such other  interest  rate  formula as is set forth in the  applicable
         pricing supplement.

         Except as specified in the  applicable  pricing  supplement,  floating
rate notes have daily, weekly, monthly, quarterly,  semiannual or annual resets
of the rate of interest.
    

FIXED RATE NOTES

   
         Each fixed rate note bears interest at the rate per annum stated on the
face of the  applicable  note  until the  principal  of the note is paid or made
available for payment.  Except as provided in the applicable pricing supplement,
interest is payable  semi-annually on May 15 and November 15 of each year and at
maturity,  or on the date of  redemption  or  repayment  if a fixed rate note is
redeemed by ML&Co. or repaid at the holder's option prior to maturity.  Interest
is computed on the basis of a 360-day year of twelve 30-day months.  Interest is
payable to the person in whose name a fixed rate note is registered at the close
of business on the May 1 or November 1 regular  record date next  preceding  the
May 15 or November  15  interest  payment  date.  Interest  rates are subject to
change by ML&Co.  from time to time,  but no change  will  affect any fixed rate
note previously issued or as to which ML&Co. has accepted an offer to purchase.

         Any  payment  of  principal  or  interest  required  to be  made on an
interest  payment  date,  at maturity or earlier  redemption  or repayment of a
fixed rate note which is not a Business  Day need not be made on that day,  but
may be made on the next succeeding  Business Day with the same force and effect
as if made on the interest payment date, maturity date or date of redemption or
repayment,  as the case may be. No interest  will  accrue  with  respect to the
payment for the period from and after the  applicable  interest  payment  date,
maturity date or date of redemption or repayment.
    

FLOATING RATE NOTES

   
         The applicable pricing supplement specifies:

    o    the base rate or other interest rate formula ,

    o    the Spread, or Spread Multiplier, if any, and

    o    the maximum or minimum interest rate limitation, if any, applicable to
         each floating rate note.

In addition,  the pricing supplement  specifies for each floating rate note the
following terms, if applicable: the initial interest rate, the interest payment
dates,  the Index Maturity,  Interest Reset Dates,  optional  repayment  dates,
redemption date and any other variable term applicable to the note.

         The  interest  rate on  each  floating  rate  note  is  calculated  by
reference to the specified interest rate formula:

    (1)  plus or minus the number of basis points  specified in the  applicable
         pricing  supplement  as being  applicable to the interest rate for the
         relevant floating rate note (the "Spread"), if any, or

    (2)  multiplied  by the  percentage  of the  base  rate  applicable  to the
         interest  rate for the  applicable  floating  rate note  (the  "Spread
         Multiplier"), if any.

         "Index  Maturity"  means,  the period to maturity of the instrument or
obligation  on which the interest  rate  formula is based,  as specified in the
applicable pricing supplement.

         "Regular  record date" with  respect to floating  rate notes means the
15th day, whether or not a Business Day, before the applicable interest payment
date.

         The  "calculation  date", if applicable,  with respect to any Interest
Determination  Date as specified  with respect to each base rate is the earlier
of:

    o    the tenth  calendar day after the Interest  Determination  Date or, if
         the tenth  calendar  day is not a Business  Day,  the next  succeeding
         Business Day, or

    o    the Business Day before the interest payment date on which the accrued
         interest will be payable.

         Except as otherwise  provided herein with respect to LIBOR Notes or in
the applicable pricing supplement,  if any Interest Reset Date for any floating
rate note would  otherwise be a day that is not a Business  Day,  that Interest
Reset Date will be postponed to the next succeeding day that is a Business Day.

         Each floating  rate note bears  interest from the date of issue at the
rates  determined as described below until the principal of the note is paid or
otherwise made  available for payment.  The rate of interest on a floating rate
note is reset  each  Interest  Reset  Date  applicable  to the note;  provided,
however,  that except in the case of floating rate notes which reset daily, the
interest  rate  in  effect  for  the  ten  days  immediately  before  maturity,
redemption  or  repayment,  as the case may be,  will be the  interest  rate in
effect on the tenth day preceding  such maturity,  redemption or repayment,  as
the case may be.  Except as  otherwise  provided  herein  or in the  applicable
pricing  supplement,  the rate of interest determined on an Interest Reset Date
with  respect  to a  floating  rate  note will be  applicable  on and after the
applicable  Interest  Reset Date to,  but not  including,  the next  succeeding
Interest  Reset Date,  or until the date of maturity or date of  redemption  or
repayment, as the case may be.

         If an interest  payment date with  respect to any  floating  rate note
falls on a day  that is not a  Business  Day with  respect  to the  note,  that
interest  payment date will be the following day that is a Business Day, except
that in the case of a LIBOR Note, if such day falls in the next calendar month,
the interest  payment date will be the preceding day that is a Business Day. If
the maturity  date or date of redemption or repayment of any floating rate note
falls  on a day  that is not a  Business  Day,  the  payment  of  interest  and
principal may be made on the next  succeeding  Business Day, and no interest on
that payment will accrue for the period from and after the maturity date or the
date of redemption or repayment.

         Except as  provided in the  applicable  pricing  supplement,  interest
payments on floating  rate notes will be the amount of interest  accrued  from,
and  including,  the next preceding  interest  payment date in respect of which
interest has been paid to, but  excluding,  the  interest  payment  date.  With
respect to a floating rate note,  accrued  interest from the last date to which
interest has been paid is calculated by multiplying the principal amount of the
applicable  floating  rate note by an  accrued  interest  factor.  The  accrued
interest factor is computed by adding the interest factors, calculated for each
day, from the last date to which  interest has been paid, to the date for which
accrued  interest  is being  calculated.  The  interest  factor for each day is
computed by dividing the interest  rate  applicable  to each day by 360, in the
case of Commercial Paper Index Rate Notes, Federal Funds Rate Notes, Prime Rate
Notes and LIBOR Notes, or by the actual number of days in the year, in the case
of Treasury Index Rate Notes.

         All percentages  resulting from any calculation on floating rate notes
will be rounded,  if  necessary,  to the nearest  one  hundred-thousandth  of a
percentage  point,  with five one-  millionths  of a percentage  point  rounded
upward.  For example,  9.876545%  or .09876545  would be rounded to 9.87655% or
 .0987655. All dollar amounts used in or resulting from calculations on floating
rate notes will be rounded to the nearest cent with one-half cent being rounded
upward.

         Upon  the  request  of the  holder  of any  floating  rate  note,  the
calculation  agent  will  provide  the  interest  rate then in effect  and,  if
determined,  the  interest  rate which will become  effective  as a result of a
determination made with respect to the most recent Interest  Determination Date
with respect to the applicable note.
    

COMMERCIAL PAPER INDEX RATE NOTES

   
         Commercial Paper Index Rate Notes bear interest at the interest rates,
calculated with reference to the Commercial  Paper Index Rate and the Spread or
Spread Multiplier, if any, specified in the applicable pricing supplement.

         Unless  otherwise  indicated  in the  applicable  pricing  supplement,
"Commercial Paper Index Rate" means, with respect to any Interest Determination
Date  relating to a  Commercial  Paper Index Rate Note,  the Money Market Yield
calculated  as described  below of the rate on that date for  commercial  paper
having the Index  Maturity  specified in the applicable  pricing  supplement as
such rate is published by the Board of Governors of the Federal  Reserve System
in "Statistical  Release  H.15(519),  Selected Interest Rates" or any successor
publication   of  the  Board  of  Governors  of  the  Federal   Reserve  System
("H.15(519)"),  under the heading  "Commercial  Paper".  In the event that such
rate is not published by 9:00 A.M. New York City time on the  calculation  date
pertaining to the applicable  Interest  Determination Date, then the Commercial
Paper Index Rate will be the Money  Market  Yield of the rate on that  Interest
Determination  Date for commercial paper having the Index Maturity as published
by the  Federal  Reserve  Bank of New York in its  daily  statistical  release,
"Composite 3:30 P.M.  Quotations for U.S.  Government  Securities"  ("Composite
Quotations")  under the heading  "Commercial  Paper". If by 3:00 P.M., New York
City time, on the applicable calculation date such rate is not yet published in
either H.15(519) or Composite  Quotations,  the Commercial Paper Index Rate for
that Interest  Determination  Date will be calculated by the calculation  agent
and will be the Money Market Yield of the arithmetic  mean of the offered rates
of three leading  dealers of commercial  paper in The City of New York selected
by the calculation agent as of 11:00 A.M., New York City time, on that Interest
Determination  Date for  commercial  paper having the specified  Index Maturity
placed for an  industrial  issuer  whose bond rating is "AA" or the  equivalent
from a nationally  recognized  rating  agency.  If the dealers  selected by the
calculation agent are not quoting as mentioned in the preceding  sentence,  the
Commercial  Paper Index Rate will be the Commercial  Paper Index Rate in effect
on such Interest Determination Date.

         "Money Market Yield" means the yield calculated in accordance with the
following formula and expressed as a percentage:
    

                 Money Market Yield   =            D  X  360         X  100
                                                 --------------
                                                 360-- (D X M)

   
where "D" refers to the per annum rate for  commercial  paper  quoted on a bank
discount basis and expressed as a decimal;  and "M" refers to the actual number
of days in the interest period for which interest is being calculated.

         The Interest  Determination  Date pertaining to an Interest Reset Date
on a  Commercial  Paper Index Rate Note is the Business Day before the Interest
Reset Date.
    

FEDERAL FUNDS RATE NOTES

   
         Federal  Funds  Rate  Notes  bear  interest  at  the  interest  rates,
calculated  with reference to the Federal Funds Rate and the Spread,  or Spread
Multiplier, if any, specified in the applicable pricing supplement.

         Unless  otherwise  indicated  in the  applicable  pricing  supplement,
"Federal  Funds Rate" means,  with respect to any Interest  Determination  Date
relating to a Federal Funds Rate Note,  the rate on that date for Federal Funds
as  published  by the  Board of  Governors  of the  Federal  Reserve  System in
"Statistical  Release H.15(519),  Selected Interest Rates" ("H.15(519)") or any
successor  publication under the heading "Federal Funds (Effective)" or, if not
so  published  by 9:00  A.M.,  New York  City  time,  on the  calculation  date
pertaining to the  applicable  Interest  Determination  Date, the Federal Funds
Rate will be the interest rate on the Interest  Determination Date as published
by the  Federal  Reserve  Bank of New York in its  daily  statistical  release,
"Composite 3:30 P.M.  Quotations for U.S.  Government  Securities"  ("Composite
Quotations") under the heading "Federal  Funds/Effective Rate". If such rate is
not yet  published  by 9:00 A.M.  on the  calculation  date  pertaining  to the
applicable  Interest  Determination  Date,  the  Federal  Funds  Rate  for  the
applicable  Interest  Determination  Date  will be the  rate on the  applicable
Interest Determination Date made publicly available by the Federal Reserve Bank
of New York which is equivalent  to the rate which  appears in H.15(519)  under
the heading "Federal Funds (Effective)". If the rate described in the preceding
sentence is not made publicly available by the Federal Reserve Bank of New York
by 9:00 A.M. on the  calculation  date, the Federal Funds Rate will be the last
Federal Funds Rate in effect before the applicable Interest Determination Date.

         The rate of  interest  on a Federal  Funds  Rate Note is reset on each
Interest Reset Date applicable to the note.  Unless otherwise  specified in the
applicable pricing  supplement,  with respect to Federal Funds Rate Notes, each
Business  Day is an  Interest  Reset  Date.  The  Interest  Determination  Date
pertaining  to an  Interest  Reset  Date on a  Federal  Funds  Rate Note is the
Business Day before the applicable Interest Reset Date.
    

PRIME RATE NOTES

   
         Prime Rate Notes bear interest at the interest rates,  calculated with
reference  to the Prime  Rate and the  Spread,  or Spread  Multiplier,  if any,
specified in the applicable pricing supplement.

         Unless  otherwise  indicated  in the  applicable  pricing  supplement,
"Prime Rate" means, with respect to any Interest Determination Date relating to
a Prime Rate Note, the  arithmetic  mean of the prime rates quoted on the basis
of the actual  number of days in the year  divided by a 360-day  year as of the
close of  business  on the  Interest  Determination  Date by three  major money
center  banks in The City of New York  selected by the  calculation  agent.  If
fewer than three quotations are provided,  the Prime Rate will be calculated by
the  calculation  agent and will be  determined as the  arithmetic  mean on the
basis of the prime rates quoted in The City of New York on the calculation date
by three substitute banks or trust companies organized and doing business under
the laws of the United States,  or any State  thereof,  and  unaffiliated  with
ML&Co.,  having total equity capital of at least $500 million and being subject
to supervision or examination by a Federal or State authority,  selected by the
calculation  agent. If the substitute banks or trust companies  selected by the
calculation agent are not quoting as mentioned in the preceding  sentence,  the
Prime Rate will be the Prime Rate in effect on such Interest Determination Date
relating to a Prime Rate Note.

         The Interest  Determination  Date pertaining to an Interest Reset Date
on a Prime Rate Note is the Business Day before the  applicable  Interest Reset
Date.
    

LIBOR NOTES

   
         LIBOR  Notes bear  interest  at the  interest  rates  calculated  with
reference to LIBOR and the Spread or Spread  Multiplier,  if any,  specified in
the applicable pricing supplement.

         Unless  otherwise  indicated  in the  applicable  pricing  supplement,
LIBOR, with respect to any Interest Determination Date relating to a LIBOR Note
will equal the arithmetic  mean as determined by the  calculation  agent of the
offered rates which appear as of 11:00 A.M., London time, on the Reuters Screen
LIBOR Page on the Reuter  Monitor  Money Rates  Service for  deposits in United
States dollars for the period of the Index Maturity specified in the applicable
pricing  supplement  commencing on the second day on which dealings in deposits
in United  States  dollars are  transacted  in the London  interbank  market (a
"London   Banking  Day")   immediately   following  the   applicable   Interest
Determination  Date;  provided,  however,  that if fewer  than  two  quotations
appear,  the calculation agent will request the principal London office of four
major banks in the London interbank market selected by the calculation agent to
provide  the  calculation  agent with a  quotation  of their  offered  rates at
approximately 11:00 A.M., London time, on the applicable Interest Determination
Date for  deposits in United  States  dollars for the period of the  applicable
Index  Maturity  and  in  a  principal  amount  equal  to  an  amount  that  is
representative  for a single transaction in such market at such time commencing
on the second London Banking Day immediately  following the applicable Interest
Determination  Date. If at least two  quotations  are  provided,  LIBOR for the
applicable  Interest  Determination  Date will equal the arithmetic mean of the
quotations. If fewer than two quotations are provided, LIBOR for the applicable
Interest  Determination Date will equal the arithmetic mean of the rates quoted
by three  major banks in The City of New York,  as selected by the  calculation
agent,  at  approximately  11:00 A.M.,  New York City time,  on the  applicable
Interest  Determination  Date for  loans to  leading  European  banks in United
States  dollars  for the  period  of the  applicable  Index  Maturity  and in a
principal  amount  equal  to an  amount  that is  representative  for a  single
transaction in such market at such time commencing on the second London Banking
Day following  the Interest  Determination  Date. If the banks  selected by the
calculation agent are not quoting as mentioned in the preceding sentence, LIBOR
for the applicable Interest  Determination Date will be LIBOR in effect on such
Interest Determination Date.

         The Interest  Determination  Date pertaining to an Interest Reset Date
on a LIBOR Note is the second London  Banking Day next preceding the applicable
Interest Reset Date.
    

TREASURY INDEX RATE NOTES

   
         Treasury  Index  Rate  Notes  bear  interest  at the  interest  rates,
calculated  with  reference to the Treasury Index Rate and the Spread or Spread
Multiplier, if any, specified in the applicable pricing supplement.

         Unless otherwise indicated in the pricing supplement,  "Treasury Index
Rate"  means,  with respect to any Interest  Determination  Date  relating to a
Treasury Index Rate Note, the per annum discount rate for direct obligations of
the United States with a maturity of thirteen weeks ("91-day  Treasury bills"),
expressed as a bond  equivalent  on the basis of a year of 365 or 366 days,  at
the  91-day  Treasury  bill  auction  occurring  on  the  applicable   Interest
Determination  Date as  published  by the  Board of  Governors  of the  Federal
Reserve System in "Statistical Release H.15(519),  Selected Interest Rates", or
any successor publication,  under the heading "Treasury  bills--auction average
(investment)"  or if not  published  by 9:00  A.M.  New York  City  time on the
calculation  date as reported by the United States  Department of the Treasury.
Treasury  bills are usually  sold at auction on Monday of each week unless that
day is a legal  holiday  in  which  case the  auction  is  usually  held on the
following Tuesday, except that the auction may be held on the preceding Friday.

         The day of each auction of 91-day  Treasury  bills,  unless  otherwise
specified in the pricing supplement, is an Interest Determination Date provided
that the results of the auction are  published or reported,  and each  Business
Day following such an Interest Determination Date is a Treasury Index Rate Note
Interest  Reset Date.  The rate of interest  applicable to Treasury  Index Rate
Notes will  therefore not be reset during any period in which  auctions are not
held or the results of auctions are not so published or reported.
    

ZERO COUPON NOTES

   
         Notes which do not bear interest  ("Zero Coupon Notes") were initially
offered at a  substantial  discount  from their  principal  amount at maturity.
There are no periodic  payments of interest.  The calculation of the accrual of
Original Issue  Discount,  as defined below,  in the period during which a Zero
Coupon Note remains outstanding, is on a semiannual bond equivalent basis using
a year composed of twelve 30-day months. Upon maturity, Original Issue Discount
will cease to accrue on a Zero Coupon Note.

         Limitation  of Claims in  Bankruptcy:  If a bankruptcy  proceeding  is
commenced  in respect of ML&Co.,  the claim of the holder of a Zero Coupon Note
with respect to the principal  amount thereof may,  under Section  502(b)(2) of
Title 11 of the United  States Code,  be limited to the issue price of the Zero
Coupon Note plus that portion of the Original  Issue Discount that is amortized
from the date of issue to the commencement of the proceeding.
    


                                  OTHER TERMS

   
         ML&Co.  issued the notes as a series of securities under an Indenture,
dated as of April 1, 1983,  as amended  and  restated  (the "1983  Indenture"),
between ML&Co. and The Chase Manhattan Bank, as trustee.  All of the securities
issued  under the 1983  Indenture  are  referred to in this  prospectus  as the
"senior debt  securities".  A copy of the 1983 Indenture is filed as an exhibit
to the registration statement relating to the notes of which this prospectus is
a  part.  The  following  summaries  of the  material  provisions  of the  1983
Indenture are not complete and are subject to, and qualified in their  entirety
by reference to, all provisions of the 1983 Indenture, including the definition
of terms in the 1983 Indenture .

         ML&Co.  may issue series of senior debt  securities  from time to time
under the 1983 Indenture,  without limitation as to aggregate principal amount,
in one or more series and upon such terms as ML&Co.  may establish under to the
provisions of the 1983 Indenture .

         The 1983  Indenture  and the notes are  governed by and  construed  in
accordance with the laws of the State of New York.

         ML&Co.  may issue senior debt  securities  with terms  different  from
those of senior debt  securities  previously  issued,  and reopen a  previously
issued  series of senior  debt  securities  and issue  additional  senior  debt
securities of a previously issued series of senior debt securities.

         The senior debt  securities  are  unsecured  and rank equally with all
other  unsecured and  unsubordinated  indebtedness  of ML&Co..  However,  since
ML&Co. is a holding company,  the right of ML&Co. and its creditors,  including
the holders of senior debt  securities,  to participate in any  distribution of
the  assets  of any  subsidiary  upon  its  liquidation  or  reorganization  or
otherwise  are  necessarily  subject to the prior  claims of  creditors  of the
subsidiary,  except to the extent that a bankruptcy  court may recognize claims
of ML&Co.  itself as a creditor of the  subsidiary  . In  addition,  dividends,
loans and advances from certain  subsidiaries,  including MLPF&S, to ML&Co. are
restricted by net capital  requirements  under the  Securities  Exchange Act of
1934, as amended,  and under rules of certain  exchanges  and other  regulatory
bodies.
    

LIMITATIONS UPON LIENS

   
         ML&Co. may not, and may not permit any  majority-owned  subsidiary to,
create,  assume,  incur or permit to exist any  indebtedness for borrowed money
secured  by a  pledge,  lien or  other  encumbrance,  other  than  those  liens
specifically  permitted  by the  1983  Indenture,  on the  Voting  Stock  owned
directly or indirectly by ML&Co. of any majority-owned subsidiary, other than a
majority-owned  subsidiary  which, at the time of the incurrence of the secured
indebtedness,  has a net worth of less than $3,000,000,  unless the outstanding
senior  debt  securities  are  secured  equally  and  ratably  with the secured
indebtedness.

         "Voting  Stock" is defined in the 1983  Indenture  as the stock of the
class or classes having general  voting power under ordinary  circumstances  to
elect at least a majority of the board of directors,  managers or trustees of a
corporation  provided that, for the purposes of the 1983 Indenture,  stock that
carries only the right to vote  conditionally  on the occurrence of an event is
not considered voting stock whether or not the event has happened.
    

LIMITATION ON DISPOSITION OF VOTING STOCK OF, AND MERGER AND SALE OF ASSETS
BY, MLPF&S

   
         ML&Co. may not sell, transfer or otherwise dispose of any Voting Stock
of MLPF&S or permit  MLPF&S to issue,  sell or otherwise  dispose of any of its
Voting  Stock,  unless,  after giving  effect to any such  transaction,  MLPF&S
remains a Controlled Subsidiary.

         "Controlled  Subsidiary"  is defined in the 1983  Indenture  to mean a
corporation  more than 80% of the  outstanding  shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

         In addition,  ML&Co. may not permit MLPF&S to:

    o    merge or  consolidate,  unless the  surviving  company is a Controlled
         Subsidiary, or
    

    o    convey or  transfer  its  properties  and assets  substantially  as an
         entirety, except to one or more Controlled Subsidiaries.

MERGER AND CONSOLIDATION

   
         ML&Co. may consolidate or merge with or into any other corporation and
ML&Co. may sell, lease or convey all or substantially  all of its assets to any
corporation, provided that:

    o    the  resulting  corporation,  if other than ML&Co.,  is a  corporation
         organized and existing  under the laws of the United States of America
         or any U.S. state and assumes all of ML&Co.'s obligations to:

    o    pay any amounts due and payable or deliverable with respect to all the
         senior debt securities; and

    o    perform  and  observe of all of  ML&Co.'s  obligations  under the 1983
         Indenture, and

    o    ML&Co.  or the  successor  corporation,  as the case  may be,  is not,
         immediately  after any  consolidation or merger,  in default under the
         1983 Indenture.
    

MODIFICATION AND WAIVER

   
         ML&Co.  and the trustee may modify and amend the 1983  Indenture  with
the  consent  of  holders  of at  least  66 2/3% in  principal  amount  of each
outstanding  series of senior debt securities  affected.  However,  without the
consent of each holder of any  outstanding  senior debt security  affected,  no
amendment or modification to the 1983 Indenture may:

    o    change  the  stated   maturity  date  of  the  principal  of,  or  any
         installment of interest or Additional  Amounts  payable on, any senior
         debt  security or any premium  payable on  redemption  , or change the
         redemption price;

    o    reduce the principal amount of, or the interest or Additional  Amounts
         payable on, any senior debt security or reduce the amount of principal
         which could be declared  due and  payable  before the stated  maturity
         date;

    o    change  the place or  currency  of any  payment  of  principal  or any
         premium,  interest or  Additional  Amounts  payable on any senior debt
         security;

    o    impair the right to institute suit for the  enforcement of any payment
         on or with respect to any senior debt security;

    o    reduce the percentage in principal  amount of the  outstanding  senior
         debt  securities  of any  series,  the  consent  of whose  holders  is
         required to modify or amend the 1983 Indenture; or

    o    modify  the  foregoing   requirements  or  reduce  the  percentage  of
         outstanding senior debt securities necessary to waive any past default
         to less than a majority.

         No modification or amendment of ML&Co.'s Subordinated Indenture or any
Subsequent  Indenture for subordinated debt securities may adversely affect the
rights of any holder of  ML&Co.'s  senior  indebtedness  without the consent of
each holder affected. The holders of at least a majority in principal amount of
outstanding  senior debt  securities  of any series may,  with  respect to that
series,  waive past defaults under the 1983  Indenture and waive  compliance by
ML&Co.  with  provisions  in the 1983  Indenture,  except  as  described  under
"--Events of Default".

EVENTS OF DEFAULT

         Each of the following will be Events of Default with respect to senior
debt securities of any series:

    o    default in the payment of any interest or Additional  Amounts  payable
         when due and continuing for 30 days;

    o    default in the payment of any principal or premium when due;

    o    default in the deposit of any sinking fund payment, when due;

    o    default in the performance of any other obligation of ML&Co. contained
         in the 1983  Indenture for the benefit of that series or in the senior
         debt  securities of that series,  continuing for 60 days after written
         notice as provided in the 1983 Indenture;

    o    specified  events  in  bankruptcy,  insolvency  or  reorganization  of
         ML&Co.; and

    o    any other  Event of  Default  provided  with  respect  to senior  debt
         securities  of that series  which are not  inconsistent  with the 1983
         Indenture.

         If an Event of  Default  occurs  and is  continuing  for any series of
senior debt securities, other than as a result of the bankruptcy, insolvency or
reorganization  of  ML&Co.,  the  trustee  or the  holders  of at least  25% in
principal  amount of the outstanding  senior debt securities of that series may
declare  all  amounts,  or any lesser  amount  provided  for in the senior debt
securities,  due and payable or  deliverable  immediately.  At any time after a
declaration  of  acceleration  has  been  made  with  respect  to  senior  debt
securities  of any series but before the  trustee  has  obtained a judgment  or
decree for payment of money , the holders of a majority in principal  amount of
the  outstanding  senior  debt  securities  of  that  series  may  rescind  any
declaration of acceleration  and its  consequences,  if all payments due, other
than  those due as a result of  acceleration,  have been made and all Events of
Default have been remedied or waived.

         The holders of a majority in principal amount or aggregate issue price
of the  outstanding  debt  securities  of that  series  may  waive any Event of
Default with respect to that series, except a default:

    o    in the payment of any amounts due and payable or deliverable under the
         debt securities of that series; or

    o    in respect of an obligation or provision of the 1983  Indenture  which
         cannot be modified under the terms of the 1983  Indenture  without the
         consent of each holder of each outstanding  security of each series of
         debt securities affected.

         The  holders  of a majority  in  principal  amount of the  outstanding
senior  debt  securities  of a series may direct the time,  method and place of
conducting any proceeding for any remedy available to the trustee or exercising
any trust or power  conferred  on the trustee with respect to those senior debt
securities,  provided that any direction shall not be in conflict with any rule
of law or the 1983 Indenture.  Before proceeding to exercise any right or power
under the 1983 Indenture at the direction of the holders,  the trustee shall be
entitled to receive  from the holders  reasonable  security or  indemnification
against the costs,  expenses and  liabilities  which might be incurred by it in
complying with any direction.

         The notes and other series of senior debt securities  issued under the
1983  Indenture do not have the benefit of any  cross-default  provisions  with
other indebtedness of ML&Co.

         ML&Co.  is required to furnish to the trustee  annually a statement as
to  the  fulfillment  by  ML&Co.  of  all of its  obligations  under  the  1983
Indenture.
    



<PAGE>


   
                      WHERE YOU CAN FIND MORE INFORMATION

         We file reports,  proxy statements and other information with the SEC.
Our SEC filings are also  available  over the Internet at the SEC's web site at
http://www.sec.gov. You may also read and copy any document we file by visiting
the SEC's public  reference  rooms in Washington,  D.C., New York, New York and
Chicago,  Illinois.  Please call the SEC at 1-800-SEC-0330 for more information
on the public reference rooms and their copy charges.  You may also inspect our
SEC  reports and other  information  at the New York Stock  Exchange,  20 Broad
Street, New York, New York 10005.

         We have  filed a  registration  statement  on Form  S-3  with  the SEC
covering the notes. For further information on ML&Co. and the notes, you should
refer  to  our  registration  statement  and  its  exhibits.   This  prospectus
summarizes  material  provisions of contracts and other documents that we refer
you to. Because the prospectus may not contain all the information that you may
find  important,  you should review the full text of these  documents.  We have
included copies of these documents as exhibits to our registration statement of
which this prospectus is a part.


               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

         The SEC allows us to incorporate by reference the  information we file
with them, which means:

    o    incorporated documents are considered part of the prospectus;

    o    we can disclose important information to you by referring you to those
         documents; and

    o    information  that we file with the SEC will  automatically  update and
         supersede this incorporated information.

         We  incorporate  by reference  the  documents  listed below which were
filed with the SEC under the Exchange Act:

    o    annual report on Form 10-K for the year ended December 25, 1998; and

    o    current reports on Form 8-K dated December 28, 1998,  January 19, 1999,
         February 17, 1999,  February 18, 1999,  February 22, 1999, February 23,
         1999 and March 26, 1999.

         We also incorporate by reference each of the following  documents that
we will file with the SEC after the date of this prospectus until this offering
is completed or after the date of the initial registration  statement and prior
to effectiveness of the registration statement:

    o    reports filed under Sections 13(a) and (c) of the Exchange Act;

    o    definitive  proxy or information  statements filed under Section 14 of
         the  Exchange  Act in  connection  with any  subsequent  stockholders'
         meeting; and

    o    any reports filed under Section 15(d) of the Exchange Act.

         You should  rely only on  information  contained  or  incorporated  by
reference in this prospectus.  We have not, and MLPF&S has not,  authorized any
other person to provide you with different information.  If anyone provides you
with different or inconsistent  information,  you should not rely on it. We are
not, and MLPF&S is not, making an offer to sell these notes in any jurisdiction
where the offer or sale is not permitted.

         You should assume that the information appearing in this prospectus is
accurate  as of the  date of this  prospectus  only.  Our  business,  financial
condition and results of operations may have changed since that date.

         You may  request a copy of any filings  referred  to above  (excluding
exhibits),  at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan,  Jr.,  Corporate  Secretary's  Office,  Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.


                              PLAN OF DISTRIBUTION

         This  prospectus has been prepared in connection  with secondary sales
of the notes and is to be used by MLPF&S when making  offers and sales  related
to market-making transactions in the notes.

         MLPF&S  may  act  as  principal   or  agent  in  these   market-making
transactions.

         The  distribution  of the notes will conform to the  requirements  set
forth in the applicable sections of Rule 2720 of the Conduct Rules of the NASD.
    


                                    EXPERTS

   
         The  consolidated   financial  statements  and  the  related  financial
statement schedule  incorporated in this prospectus by reference from the Annual
Report on Form 10-K of Merrill  Lynch & Co.,  Inc.  and  subsidiaries  have been
audited  by  Deloitte & Touche  LLP,  independent  auditors,  as stated in their
reports  (which  express  an  unqualified   opinion  and  which  report  on  the
consolidated  financial  statements  includes an  explanatory  paragraph for the
change in  accounting  method  for  certain  internal-use  software  development
costs),   which  are  incorporated  herein  by  reference,   and  have  been  so
incorporated  in  reliance  upon the  reports  of such  firm  given  upon  their
authority as experts in accounting and auditing.
    

<PAGE>
   
The information in this  prospectus is not complete and may be changed.  We may
not sell  these  securities  until the  registration  statement  filed with the
Securities  and Exchange  Commission  is effective.  This  prospectus is not an
offer to sell these  securities  and it is not soliciting an offer to buy these
securities in any state where the offer or sale is not permitted.
    


                             Subject to Completion
   
                  Preliminary Prospectus dated March 29, 1999
    
P R O S P E C T U S

                           MERRILL LYNCH & CO., INC.
   
    MAJOR 11 INTERNATIONAL MARKET INDEX TARGET-TERM MITTS SECURITIES(R) DUE
                                DECEMBER 6, 2002
                             "MITTS(R) SECURITIES"
                         $10 PRINCIPAL AMOUNT PER UNIT

         This  prospectus is to be used by Merrill Lynch & Co.,  Merrill Lynch,
Pierce,  Fenner & Smith Incorporated,  our wholly-owned  subsidiary when making
offers and sales related to market-making transactions in the MITTS Securities.



The MITTS Securities:                            Payment at Maturity:

   o  100%  principal  protection  at    o  On the maturity  date, for each
      maturity                              unit  of the  MITTS  Securities
   o  No  payments   before  maturity       you  own,  we  will  pay you an
      date                                  amount  equal to the sum of the
   o  Senior      unsecured      debt       principal  amount  of each unit
      securities  of Merrill  Lynch &       and an additional  amount based
      Co., Inc.                             on the percentage increase,  if
   o  Linked  to  the  value  of  the       any,  in the value of the Major
      Major 11 International Index          11   International   Index   as
   o  The MITTS Securities are listed       described in this prospectus.  
      on the American  Stock Exchange                                      
      under the symbol "EEM".            o  You will  receive  no less than
                                            the  principal  amount  of your
                                            MITTS Securities.


                INVESTING IN THE MITTS SECURITIES INVOLVE RISKS.
                    SEE "RISK FACTORS" BEGINNING ON PAGE 3.
    

         Neither  the  Securities   and  Exchange   Commission  nor  any  state
securities  commission  has  approved or  disapproved  of these  securities  or
determined if this prospectus is truthful or complete.  Any  representation  to
the contrary is a criminal offense.

   
         The sale price of the MITTS  Securities will be the prevailing  market
price at the time of sale.
    




                               ----------------
                              MERRILL LYNCH & CO.
                               ----------------
                     The date of this prospectus is , 199 .



   
"MITTS" and "Market Index Target-Term  Securities" are registered service marks
of Merrill Lynch & Co., Inc.
    



<PAGE>



   
                               TABLE OF CONTENTS

                                                                           Page

RISK FACTORS..................................................................3

MERRILL LYNCH & CO., INC......................................................7

RATIO OF EARNINGS TO FIXED CHARGES............................................8

DESCRIPTION OF MITTS SECURITIES...............................................9

THE INDEX....................................................................17

OTHER TERMS..................................................................23

PROJECTED PAYMENT SCHEDULE...................................................27

WHERE YOU CAN FIND MORE INFORMATION..........................................28
    

INCORPORATION OF INFORMATION WE FILE WITH THE SEC............................28

   
PLAN OF DISTRIBUTION.........................................................29

EXPERTS......................................................................29
    





<PAGE>



                                  RISK FACTORS

   
         Your investment in the MITTS Securities will involve risks. You should
carefully consider the following discussion of risks before deciding whether an
investment in the MITTS Securities is suitable for you.

YOU MAY NOT EARN A RETURN ON YOUR INVESTMENT

         You should be aware that if the  average  value of the index over five
trading  days shortly  before the maturity  date is less than 100, the value of
the index on the date the MITTS  Securities  were priced,  we will pay you only
$10 for each unit of the MITTS  Securities you own. This will be true even if ,
at some time  during the life of the MITTS  Securities,  the value of the index
was higher than 100 but later falls below 100 .

YOUR YIELD MAY BE LOWER THAN THE YIELD ON A STANDARD  DEBT SECURITY OF
COMPARABLE MATURITY

         The  amount we pay you at  maturity  may be less than the  return  you
could  earn on other  investments.  Your  yield  may be less than the yield you
would  earn if you bought a  standard  senior  non-callable  debt  security  of
Merrill Lynch & Co., Inc. with the same maturity date.  Your investment may not
reflect the full  opportunity  cost to you when you take into  account  factors
that affect the time value of money.

YOUR RETURN  WILL NOT  REFLECT THE RETURN OF OWNING THE STOCKS  INCLUDED IN THE
INDEX

         The  AMEX  calculates  the  index  by  reference  to  the  sub-indices
comprising eleven major international market indices that reflect the prices of
the  common  stocks   included  in  those   sub-indices   without  taking  into
consideration  the value of dividends paid on those stocks,  except in the case
of the Deutscher  Aktienindex  Sub-Index  which reflects  dividends paid on its
underlying common stocks. Your return on your MITTS Securities will not reflect
the return you would realize if you actually owned all of the stocks underlying
the index and received the dividends  paid on those stocks  because,  except as
noted above, the value of the index is calculated by reference to the prices of
the stocks included in the index without taking into consideration the value of
dividends paid on those stocks.

YOUR RETURN MAY BE AFFECTED BY CURRENCY EXCHANGE RATES

         Although  the  stocks   comprising  the   sub-indices  are  traded  in
currencies  other than U.S. dollars and the MITTS Securities are denominated in
U.S.  dollars,  we will not adjust the amount  payable at maturity for currency
exchange rates in effect at the maturity of the MITTS Securities. Any amount in
addition  to the  principal  amount of each unit  payable to you at maturity is
based  solely upon the  percentage  increase in the index.  Changes in exchange
rates,  however,  may reflect changes in the relevant European,  Australian and
Asian  economies  which in turn may affect the value of the sub-indices and the
MITTS Securities.

YOUR RETURN MAY BE AFFECTED BY FACTORS AFFECTING INTERNATIONAL SECURITIES
MARKETS.

         The underlying stocks that constitute the sub-indices have been issued
by companies listed on European,  Australian and Asian exchanges. You should be
aware  that  investments  in  securities  indexed  to the  value  of  European,
Australian and Asian  securities  involve risks.  The European,  Australian and
Asian  securities  markets may be more volatile  than U.S. or other  securities
markets and may be affected by market  developments in different ways than U.S.
or other  securities  markets.  Direct or indirect  government  intervention to
stabilize a particular non-U.S.  securities market and  cross-shareholdings  in
European, Australian and Asian companies on these markets may affect prices and
volume of trading on those  markets.  Also,  there is generally  less  publicly
available  information about non-U.S.  companies than about U.S. companies that
are subject to the reporting requirements of the SEC and non-U.S. companies are
subject  to  accounting,   auditing  and  financial   reporting  standards  and
requirements that differ from those applicable to U.S. reporting companies.

         Securities  prices in Europe,  Australia  and Asia may be  affected by
political,  economic,  financial  and  social  factors  in  those  regions.  In
addition,  recent or future  changes in a country's  government,  economic  and
fiscal policies,  the possible  imposition of, or changes in, currency exchange
laws  or  other  laws or  restrictions  applicable  to  non-U.S.  companies  or
investments in non-U.S.  equity  securities,  and possible  fluctuations in the
rate of exchange between  currencies are factors that could  negatively  affect
the  international   securities  markets.   Moreover,  the  relevant  European,
Australian and Asian  economies may differ  favorably or  unfavorably  from the
U.S. economy in economic factors such as growth of gross national product, rate
of inflation,  capital reinvestment,  resources and  self-sufficiency.  Because
some sub-indices have a greater  weighting than others in calculating the value
of the  index,  fluctuations  in  the  securities  markets  relating  to  those
sub-indices  will  have a  greater  effect  on the  value  of  the  index  than
fluctuations  in  securities  markets  relating  to  sub-indices  with a lesser
weighting.

THERE MAY BE AN UNCERTAIN TRADING MARKET FOR THE MITTS SECURITIES IN THE FUTURE

         Although the MITTS  Securities are listed on the AMEX under the symbol
"EEM",  you cannot assume that a trading  market will continue to exist for the
MITTS  Securities.  If a trading  market in the MITTS  Securities  continues to
exist,  there can be no  assurance  that there will be liquidity in the trading
market.  The continued  existence of a trading market for the MITTS  Securities
will  depend  on our  financial  performance  and  other  factors  such  as the
appreciation, if any, of the value of the index.

         If the trading market for the MITTS  Securities is limited,  there may
be a limited  number of buyers for your MITTS  Securities if you do not wish to
hold your investment until maturity. This may affect the price you receive.

 There are many factors affecting the trading value of the MITTS Securities

         We believe  that the  trading  value of the MITTS  Securities  will be
affected  by the value of the index and by a number of other  factors.  Some of
these factors are interrelated in complex ways; as a result,  the effect of any
one factor may be offset or  magnified  by the  effect of another  factor.  The
following  paragraphs  describe the expected  impact on the market value of the
MITTS  Securities  given a change  in a  specific  factor,  assuming  all other
conditions remain constant.

o   The value of the index.  The  trading  value of the MITTS  Securities  will
    depend  substantially  on the amount by which the index exceeds or does not
    exceed 100,  the value of the index on the date the MITTS  Securities  were
    priced for sale to the public.  If you choose to sell your MITTS Securities
    at a time  when  the  value  of the  index  exceeds  100,  you may  receive
    substantially  less than the amount that would be payable at maturity based
    on that index value because of the expectation that the index will continue
    to fluctuate  until shortly before the maturity date when the average value
    of the index over five  trading days is  determined.  If you choose to sell
    your  MITTS  Securities  when  the  value  of the  index  is below , or not
    sufficiently  above,  100,  you may receive  less than $10 per unit of your
    MITTS Securities.  In general, rising dividend rates or dividends per share
    in the respective  home countries  related to the common stocks  underlying
    the sub-indices may increase the value of the index while falling  dividend
    rates in these  countries  may decrease the value of the index.  Political,
    economic and other developments that affect the stocks underlying the index
    may  also  affect  the  value  of the  index  and the  value  of the  MITTS
    Securities.

o   Interest  rates.  Because the MITTS  Securities  repay,  at a minimum,  the
    principal amount at maturity, we expect that the trading value of the MITTS
    Securities will be affected by changes in interest  rates.  In general,  if
    U.S. interest rates increase, we expect that the trading value of the MITTS
    Securities will decrease.  If U.S.  interest rates decrease,  we expect the
    trading  value of the  MITTS  Securities  will  increase.  In  general,  if
    interest rates in the applicable  home countries  increase,  we expect that
    the trading value of the MITTS Securities will increase.  If interest rates
    in the applicable home countries  decrease,  we expect the trading value of
    the  MITTS  Securities  will  decrease.  However,  interest  rates  in  the
    applicable  home  countries may also affect the relevant  economies and, in
    turn, the value of the sub-indices. Rising interest rates in the applicable
    home  countries  may  lower  the  value of the  sub-indices  and the  MITTS
    Securities.  Falling  interest rates in the  applicable  home countries may
    increase  the value of the index and the value of the MITTS  Securities.  

o   Volatility  of the Index.  Volatility is the term used to describe the size
    and  frequency  of  market  fluctuations.  If the  volatility  of the index
    increases,  we expect that the trading value of the MITTS  Securities  will
    increase.  If the  volatility  of the index  decreases,  we expect that the
    trading value of the MITTS Securities will decrease.

o   Time  Remaining to Maturity.  We anticipate  that before their maturity the
    MITTS  Securities  may trade at a value  above that which would be expected
    based on the level of interest rates and the index.  This  difference  will
    reflect a "time  premium" due to  expectations  concerning the value of the
    index  during the period  before  their  maturity of the MITTS  Securities.
    However,  as  the  time  remaining  to  maturity  of the  MITTS  Securities
    decreases,  we expect that this time  premium will  decrease,  lowering the
    trading value of the MITTS Securities.

o   Dividend  Yields.   If  dividend  yields  on  the  stocks   comprising  the
    sub-indices increase, we expect that the value of the MITTS Securities will
    decrease,  and  conversely,  if  dividend  yields on the  underlying  stock
    comprising the sub-indices  decrease, we expect that the value of the MITTS
    Securities will increase.

o   Changes in our credit ratings.  Our credit ratings are an assessment of our
    ability to pay our obligations.  Consequently,  real or anticipated changes
    in our credit ratings may affect the trading value of the MITTS Securities.
    However,  because your return on your MITTS  Securities  is dependent  upon
    other factors in addition to our ability to pay our  obligations  under the
    MITTS  Securities,  an  improvement  in our credit  ratings will not reduce
    other investment risks related to an investment in the MITTS Securities.

         It is important  for you to  understand  that the impact of one of the
factors specified above, such as an increase in interest rates, may offset some
or  all  of  any  increase  in  the  trading  value  of  the  MITTS  Securities
attributable to another factor, such as an increase in the value of the index.

         In general, assuming all relevant factors are held constant, we expect
that the effect on the trading value of the MITTS  Securities of a given change
in most of the factors listed above will be less if it occurs later in the term
of the  MITTS  Securities  than if it occurs  earlier  in the term of the MITTS
Securities  except that we expect  that the effect on the trading  value of the
MITTS  Securities of a given increase in the value of the index will be greater
if it  occurs  later  in the term of the  MITTS  Securities  than if it  occurs
earlier in the term of the MITTS Securities.

 AMOUNTS PAYABLE ON THE MITTS SECURITIES MAY BE LIMITED BY STATE LAW.

         New York State laws  govern the 1983  Indenture  under which the MITTS
Securities  were issued.  New York has certain usury laws that limit the amount
of  interest  that  can be  charged  and paid on  loans,  which  includes  debt
securities like the MITTS  Securities.  Under present New York law, the maximum
rate of interest is 25% per annum on a simple  interest  basis.  This limit may
not apply to debt securities in which $2,500,000 or more has been invested.

         While we believe that New York law would be given effect by a state or
Federal  court  sitting  outside of New York,  many other states also have laws
that  regulate  the  amount of  interest  that may be  charged to and paid by a
borrower.  We will promise, for the benefit of the MITTS Securities holders, to
the extent permitted by law, not to voluntarily  claim the benefits of any laws
concerning usurious rates of interest.

 PURCHASES AND SALES BY US AND OUR AFFILIATES MAY AFFECT YOUR RETURN.

         We and our  affiliates  may from  time to time buy or sell the  stocks
underlying  the index  for  their  own  accounts  for  business  reasons  or in
connection  with  hedging our  obligations  under the MITTS  Securities.  These
transactions  could affect the price of these stocks and the value of the index
in a manner that would be adverse to your investment in the MITTS Securities.

POTENTIAL CONFLICTS OF INTERESTS.

         Our subsidiary,  Merrill Lynch, Pierce, Fenner & Smith Incorporated or
MLPF&S, is our agent for the purposes of calculating the value of the index and
the amount payable to you at maturity . Under certain  circumstances,  MLPF&S's
role as our subsidiary and its  responsibilities  as calculation  agent for the
MITTS  Securities  could give rise to conflicts of interests.  These  conflicts
could occur, for instance,  in connection with its  determination as to whether
the value of the index can be  calculated  on a  particular  trading day, or in
connection  with  judgments that it would be required to make in the event of a
discontinuance    of   the    index.    See    "Description    of   the   MITTS
Securities--Adjustments   to  the  Index;   Market   Disruption   Events"   and
"--Discontinuance of the Index" in this prospectus. MLPF&S is required to carry
out its  duties as  calculation  agent in good  faith and using its  reasonable
judgment.  However,  you  should  be aware  that  because  we  control  MLPF&S,
potential conflicts of interest could arise.

         We have entered into an arrangement  with one of our  subsidiaries  to
hedge the market risks  associated  with our  obligation  to pay amounts due at
maturity on the MITTS Securities.  This subsidiary  expects to make a profit in
connection with such arrangement.  We did not seek competitive bids for such an
arrangement from unaffiliated parties.
    

OTHER CONSIDERATIONS.

   
         You  should  reach an  investment  decision  with  regard to the MITTS
Securities  only  after  carefully  considering  the  suitability  of the MITTS
Securities in the light of your particular circumstances.

         You should also  consider  the tax  consequences  of  investing in the
MITTS Securities and should consult your tax advisor.
    



<PAGE>


   
                           MERRILL LYNCH & CO., INC.

         We  are  a  holding  company  that,  through  our  U.S.  and  non-U.S.
subsidiaries  and  affiliates  such as Merrill  Lynch,  Pierce,  Fenner & Smith
Incorporated,  Merrill Lynch Government  Securities Inc., Merrill Lynch Capital
Services, Inc., Merrill Lynch International, Merrill Lynch Capital Markets Bank
Ltd.,  Merrill  Lynch Asset  Management  L.P. and Merrill  Lynch  Mercury Asset
Management,  provides investment,  financing,  advisory, insurance, and related
products on a global
basis, including:

    o    securities brokerage, trading and underwriting;

    o    investment  banking,   strategic   services,   including  mergers  and
         acquisitions and other corporate finance advisory activities;

    o    asset  management  and other  investment  advisory  and  recordkeeping
         services;

    o    trading and brokerage of swaps, options,  forwards,  futures and other
         derivatives;

    o    securities clearance services;

    o    equity, debt and economic research;

    o    banking,  trust and lending services,  including  mortgage lending and
         related services; and

    o    insurance sales and underwriting services.

         We provide  these  products  and  services to a wide array of clients,
including individual investors,  small businesses,  corporations,  governments,
governmental agencies and financial institutions.

         Our principal  executive office is located at World Financial  Center,
North Tower,  250 Vesey Street,  New York, New York 10281; our telephone number
is (212) 449-1000.

         If you want to find more information about us, please see the sections
entitled  "Where  You  Can  Find  More   Information"  and   "Incorporation  of
Information We File with the SEC" in this prospectus.

         In this prospectus,  "ML&Co.", "we", "us" and "our" refer specifically
to Merrill Lynch & Co., Inc., the holding company.  ML&Co. is the issuer of the
MITTS Securities described in this prospectus.
    



<PAGE>

   
                       RATIO OF EARNINGS TO FIXED CHARGES

         In 1998, we acquired the outstanding  shares of Midland Walwyn,  Inc.,
in a  transaction  accounted  for  as  a  pooling-of-interests.  The  following
information  for the fiscal years 1994 through 1997 has been restated as if the
two entities had always been combined.

         The following  table sets forth our  historical  ratios of earnings to
fixed charges for the periods indicated:


<TABLE>
<CAPTION>

                                                     Year Ended Last Friday in December
<S>                                              <C>      <C>      <C>      <C>       <C> 
                                                 1994     1995     1996     1997      1998
                                                 ----     ----     ----     ----      ----
Ratio of earnings to fixed charges(a).....        1.2      1.2      1.2      1.2      1.1

- ----------
(a)      The effect of combining Midland Walwyn did not change the ratios reported for the fiscal years 1994 
         through 1997.
</TABLE>


         For the  purpose  of  calculating  the  ratio  of  earnings  to fixed
charges,  "earnings"  consist of earnings from  continuing  operations  before
income taxes and fixed charges,  excluding  capitalized interest and preferred
security dividend requirements. "Fixed charges" consist of interest costs, the
interest factor in rentals,  amortization  of debt issuance  costs,  preferred
security dividend requirements of subsidiaries, and capitalized interest.
    



<PAGE>


   
                        DESCRIPTION OF MITTS SECURITIES

         The MITTS Securities were issued as a series of senior debt securities
under the 1983 Indenture, which is more fully described in this prospectus.

         The MITTS Securities will mature on December 6, 2002.

         While at maturity a beneficial  owner of a MITTS Security will receive
the principal  amount of that MITTS Security plus the  Supplemental  Redemption
Amount  described  below,  if any,  there will be no other payment of interest,
periodic or otherwise. See "--Payment at Maturity" below.

         The MITTS Securities are not subject to redemption by ML&Co. or at the
option of any  beneficial  owner prior to maturity.  Upon the  occurrence of an
Event of Default with respect to the MITTS Securities, beneficial owners of the
MITTS  Securities  may  accelerate  the  maturity of the MITTS  Securities,  as
described  under   "Events  of  Default  and   Acceleration"  and  "Other
Terms Events of Default" in this prospectus.

         The MITTS Securities were issued in denominations of whole units.
    

PAYMENT AT MATURITY

   
         At maturity,  a beneficial  owner of a MITTS Security will be entitled
to receive the  principal  amount of that MITTS  Security  plus a  Supplemental
Redemption  Amount,  if  any,  all  as  provided  below.  If  the  Supplemental
Redemption  Amount is not  greater  than zero,  a  beneficial  owner of a MITTS
Security  will be entitled to receive  only the  principal  amount of its MITTS
Securities.

         The  "Supplemental  Redemption  Amount" for a MITTS  Security  will be
determined by the calculation agent and will equal:

<TABLE>
<S>                                                 <C> <C>
principal amount per MITTS Security ($10 per unit)   x   Ending Index Value - Starting Index Value
                                                         -----------------------------------------
    
                                                                     Starting Index Value
</TABLE>

provided,  however, that in no event will the Supplemental Redemption Amount be
less than zero.

   
         The "Starting Index Value" equals 100.

         The "Participation Rate" equals 115%.

         The "Ending Index Value" will be determined by the  calculation  agent
and will equal the  average or  arithmetic  mean of the  closing  values of the
index in New York determined on each of the first five  Calculation Days during
the Calculation Period. If there are fewer than five Calculation Days, then the
Ending  Index  Value will equal the average or  arithmetic  mean of the closing
values  of the  index  on  those  Calculation  Days,  and if  there is only one
Calculation  Day,  then the Ending Index Value will equal the closing  value of
the index on that  Calculation  Day. If no  Calculation  Days occur  during the
Calculation Period because of Market Disruption  Events,  then the Ending Index
Value  will  equal  the  closing  value  of the  Index  determined  on the last
scheduled  Index  Business Day in the  Calculation  Period,  regardless  of the
occurrences of a Market Disruption Event on that day.
    

         The  "Calculation  Period"  means the period  from and  including  the
seventh  scheduled  Index  Business  Day  prior  to the  maturity  date  to and
including the second scheduled Index Business Day prior to the maturity date.

   
         The  "Calculation  Day"  means  any  Index  Business  Day  during  the
Calculation Period on which a Market Disruption Event has not occurred.

         The "Index Business Day" is a day on which the New York Stock Exchange
and the AMEX  are open for  trading  and the  index or any  successor  index is
calculated and published.

         All determinations  made by the calculation agent shall be at the sole
discretion  of  the  calculation  agent  and,  absent  a  determination  by the
calculation agent of a manifest error, shall be conclusive for all purposes and
binding on ML&Co. and beneficial owners of the MITTS Securities.
    



<PAGE>


Hypothetical Returns

   
         The following table  illustrates,  for a range of hypothetical  Ending
Index Values:

    o    the total amount payable at maturity for each $10 principal  amount of
         MITTS Securities,

    o    the total rate of return to beneficial owners of the MITTS Securities,

    o    the pretax  annualized  rate of return to  beneficial  owners of MITTS
         Securities, and

    o    the pretax  annualized  rate of return of an  investment in the stocks
         underlying  the index,  which includes an assumed  aggregate  dividend
         yield of 2.36% per annum, as more fully described below.
    

<TABLE>
<CAPTION>
                                         Total Amount                   Pretax
                                          Payable at     Total Rate   Annualized    Pretax Annualized
                                       Maturity per $10      of          Rate       Rate of Return of
                     Percentage Change    Principal      Return on   of Return on   Stocks Underlying
   
 Hypothetical Ending Over the Starting    Amount of      Securities  Securities(1)        the
     Index Value        Index Value       Securities                                  Index(1)(2)
     -----------     -----------------    ----------     ----------  -------------     ----------
<S>      <C>                <C>            <C>              <C>          <C>            <C>   
         40                -60%            $10.00           0.00%        0.00%         -15.48%
         50                -50%            $10.00           0.00%        0.00%         -11.24%
         60                -40%            $10.00           0.00%        0.00%          -7.73%
         70                -30%            $10.00           0.00%        0.00%          -4.72%
         80                -20%            $10.00           0.00%        0.00%          -2.09%
         90                -10%            $10.00           0.00%        0.00%           0.25%
    
        100(3)               0%            $10.00           0.00%        0.00%           2.36%
         110                10%            $11.15          11.50%        2.18%           4.28%
         120                20%            $12.30          23.00%        4.16%           6.04%
         130                30%            $13.45          34.50%        5.98%           7.68%
         140                40%            $14.60          46.00%        7.67%           9.20%
         150                50%            $15.75          57.50%        9.24%          10.62%
         160                60%            $16.90          69.00%       10.71%          11.96%
         170                70%            $18.05          80.50%       12.09%          13.22%
          180               80%            $19.20          92.00%       13.40%          14.41%
          190               90%            $20.35         103.50%       14.64%          15.55%
          200              100%            $21.50         115.00%       15.81%          16.63%
          210              110%            $22.65         126.50%       16.93%          17.66%
          220              120%            $23.80         138.00%       18.00%          18.64%
          230              130%            $24.95         149.50%       19.03%          19.59%
</TABLE>

(1) The  annualized  rates of  return  specified  in the  preceding  table  are
calculated on a semiannual bond equivalent basis.
   
(2) This rate of return assumes:
    (a)  an  investment  of  a  fixed  amount  in  the  stocks  underlying  the
         sub-indices with the allocation of this amount  reflecting the current
         relative weights of these stocks in the sub-indices;
    (b)  a percentage  change in the aggregate  price of the stocks that equals
         the  percentage  change in the index from the Starting  Index Value to
         the relevant hypothetical Ending Index Value;
    (c)  a constant  dividend yield of 2.36% per annum, paid quarterly from the
         date of initial delivery of MITTS Securities,  applied to the value of
         the index at the end of each quarter  assuming this value increases or
         decreases  linearly  from the Starting  Index Value to the  applicable
         hypothetical Ending Index Value;
    (d)  no transaction fees or expenses;
    (e)  a term for the MITTS  Securities from November 26, 1997 to December 6,
         2002; and
    (f)  a final Index  value equal to the Ending  Index  Value.  The  aggregate
         dividend yield of the stocks underlying the Sub-Indices as of the close
         of business on November 20, 1997 was approximately 2.36%.
    
(3)  The Starting Index Value equals 100.

   
         The above figures are for purposes of  illustration  only.  The actual
Supplemental  Redemption  Amount  received by investors and the resulting total
and pretax  annualized rate of return will depend entirely on the actual Ending
Index Value determined by the calculation agent as provided in this prospectus.
    

ADJUSTMENTS TO THE INDEX; MARKET DISRUPTION EVENTS

   
         If at any time the method of calculating  the index, or its value , is
changed in any material  respect,  or if the index is in any other way modified
so that such index does not, in the opinion of the  calculation  agent,  fairly
represent  the value of the index had any  changes  or  modifications  not been
made, then, from and after such time, the calculation agent shall, at the close
of business  in New York,  New York,  on each date that the closing  value with
respect to the Ending Index Value is to be calculated, make any adjustments as,
in the good faith judgment of the calculation  agent, may be necessary in order
to arrive at a calculation of a value of a stock index  comparable to the index
as if no changes or  modifications  had been made,  and  calculate  the closing
value with reference to the index, as adjusted.  Accordingly,  if the method of
calculating  the index is modified so that the value of the index is a fraction
or a multiple of what it would have been if it had not been modified, e.g., due
to a split in the index,  then the calculation  agent shall adjust the index in
order to arrive at a value of the index as if it had not been  modified,  e.g.,
as if a split had not occurred.

         "MARKET  DISRUPTION  EVENT" means the  occurrence  or existence on any
Overseas  Index  Business Day with  respect to a sub-index  during the one-half
hour period that ends at the regular  official weekday time at which trading on
the Index Exchange  related to that  sub-index  occurs of any suspension of, or
limitation  imposed on,  trading  (by reason of  movements  in price  exceeding
limits  permitted  by the  relevant  exchange  or  otherwise)  on (1) the Index
Exchange in securities that comprise 20% or more of the value of such sub-index
or (2) any exchanges on which  futures or options on such  sub-index are traded
in such options or futures if, in the  determination of the calculation  agent,
such suspension or limitation is material.

         For the purpose of the foregoing  definition,  (1) a limitation on the
hours and number of days of trading  will not  constitute  a Market  Disruption
Event if it  results  from an  announced  change  in the  regular  hours of the
relevant  exchange and (2) a limitation on trading imposed during the course of
a day by reason of movements in price otherwise  exceeding  levels permitted by
the relevant exchange will constitute a Market Disruption Event.

         "OVERSEAS  INDEX  BUSINESS DAY" means,  with respect to any sub-index,
any day that is, or, but for the occurrence of a Market Disruption Event, would
have been, a trading day on the relevant  Index Exchange or on any exchanges on
which futures or options on the sub-index are traded, other than a day on which
trading on any  exchange  is  scheduled  to close  before its  regular  weekday
closing time.

         "INDEX EXCHANGE" means,  with respect to any sub-index,  the principal
exchange on which the shares comprising that sub-index are traded.

DISCONTINUANCE OF THE  INDEX

         If the AMEX  discontinues  publication  of the  index  and the AMEX or
another entity  publishes a successor or substitute  index that the calculation
agent  determines,  in its sole  discretion,  to be  comparable to the index (a
"Successor  Index"),  then,  upon the calculation  agent's  notification of any
determination to the Trustee and ML&Co.,  the calculation agent will substitute
the Successor Index as calculated by the AMEX or any other entity for the index
and  calculate  the Ending  Index Value as  described  above under  "Payment at
Maturity".  Upon any selection by the calculation  agent of a Successor  Index,
ML&Co. shall cause notice to be given to holders of the MITTS Securities.

         If the AMEX  discontinues  publication  of the index  and a  Successor
Index is not selected by the calculation agent or is no longer published on any
of the  Calculation  Days,  the value to be  substituted  for the index for any
Calculation  Day  used to  calculate  the  Supplemental  Redemption  Amount  at
maturity will be a value computed by the calculation agent for each Calculation
Day in accordance  with the procedures  last used to calculate the index before
any  discontinuance.  If a Successor Index is selected or the calculation agent
calculates  a value as a  substitute  for the  Index as  described  below,  the
Successor  Index or value shall be substituted  for the index for all purposes,
including for purposes of determining whether a Market Disruption Event exists.

         If the AMEX  discontinues  publication  of the index before the period
during which the  Supplemental  Redemption  Amount is to be determined  and the
calculation agent determines that no Successor Index is available at such time,
then on each Business Day until the earlier to occur of

    o    the determination of the Ending Index Value and

    o    a  determination  by the  Calculation  Agent that a Successor Index is
         available,

the calculation agent shall determine the value that would be used in computing
the Supplemental  Redemption Amount as described in the preceding  paragraph as
if that day were a Calculation Day. The calculation  agent will cause notice of
each  value to be  published  not less  often  than once each month in The Wall
Street  Journal or another  newspaper of general  circulation,  and arrange for
information with respect to these values to be made available by telephone.

         Notwithstanding these alternative arrangements,  discontinuance of the
publication of the index may adversely affect trading in the MITTS Securities.
    

EVENTS OF DEFAULT AND ACCELERATION

   
         In case an Event of Default with respect to any MITTS Securities shall
have occurred and be continuing,  the amount payable to a beneficial owner of a
MITTS Security upon any acceleration  permitted by the MITTS  Securities,  with
respect  to each  $10  principal  amount  of each  unit,  will be  equal to the
principal amount and the Supplemental  Redemption Amount, if any, calculated as
though the date of early  repayment were the stated  maturity date of the MITTS
Securities.  See "Description of MITTS  Securities-Payment at Maturity" in this
prospectus.  If a bankruptcy  proceeding is commenced in respect of ML&Co., the
claim of the beneficial owner of a MITTS Security may be limited, under Section
502(b)(2) of Title 11 of the United States Code, to the principal amount of the
MITTS Security plus an additional amount of contingent  interest  calculated as
though the date of the commencement of the proceeding were the maturity date of
the MITTS Securities.

         In case of  default  in  payment  at the  maturity  date of the  MITTS
Securities,  whether at their stated  maturity or upon  acceleration,  from and
after the maturity date the MITTS Securities shall bear interest,  payable upon
demand of the beneficial owners thereof,  at the rate of 6.25% per annum to the
extent that payment of any interest shall be legally  enforceable on the unpaid
amount due and payable on that date in  accordance  with the terms of the MITTS
Securities  to the date  payment of that amount has been made or duly  provided
for.

 GLOBAL SECURITIES

          DESCRIPTION OF THE GLOBAL SECURITIES

         Beneficial  owners of the MITTS  Securities  may not receive  physical
delivery  of the MITTS  Securities  nor may they be  entitled to have the MITTS
Securities  registered  in their  names.  The MITTS  Securities  currently  are
represented  by one or more fully  registered  global  securities.  Each global
security was deposited  with, or on behalf of, The Depository  Trust Company or
DTC (DTC,  together  with any  successor  thereto,  being a  "depositary"),  as
Depositary,  registered in the name of Cede & Co. (DTC's partnership  nominee).
Unless and until it is  exchanged in whole or in part for MITTS  Securities  in
definitive form, no global security may be transferred except as a whole by the
depositary to a nominee of the  depositary or by a nominee of the depositary to
the depositary or another nominee of the depositary or by the depositary or any
such nominee to a successor of the depositary or a nominee of that successor.

         So long as DTC,  or its  nominee,  is a  registered  owner of a global
security,  DTC or its nominee,  as the case may be, will be considered the sole
owner or holder of the MITTS  Securities  represented by a global  security for
all purposes under the 1983 Indenture. Except as provided below, the beneficial
owners of the MITTS  Securities  represented  by a global  security will not be
entitled  to have the  MITTS  Securities  represented  by the  global  security
registered in their names,  will not receive or be entitled to receive physical
delivery of the MITTS  Securities in definitive form and will not be considered
the owners or Holders  under the 1983  Indenture,  including  for  purposes  of
receiving  any  reports  delivered  by  ML&Co.  or the  Trustee  under the 1983
Indenture.  Accordingly,  each person owning a beneficial  interest in a global
security  must  rely on the  procedures  of DTC and,  if that  person  is not a
participant  of DTC on the  procedures  of the  participant  through which such
person owns its  interest,  to exercise  any rights of a holder  under the 1983
Indenture.  ML&Co.  understands that under existing industry practices,  in the
event  that  ML&Co.  requests  any  action  of  holders  or that an  owner of a
beneficial  interest  in a global  security  desires to give or take any action
which a holder is entitled to give or take under the 1983 Indenture,  DTC would
authorize the participants holding the relevant beneficial interests to give or
take any action, and the participants would authorize  beneficial owners owning
through those  participants  to give or take action or would otherwise act upon
the  instructions  of  beneficial  owners.  Conveyance  of  notices  and  other
communications by DTC to participants, by participants to indirect participants
and by  participants  and indirect  participants  to beneficial  owners will be
governed by  arrangements  among them,  subject to any  statutory or regulatory
requirements as may be in effect from time to time.

          DTC PROCEDURES
    

         The following is based on information furnished by DTC:

   
         DTC is the securities  depositary for the MITTS Securities.  The MITTS
Securities were issued as fully registered securities registered in the name of
Cede & Co., DTC's  partnership  nominee.  One or more fully  registered  global
securities  were issued for the MITTS  Securities  in the  aggregate  principal
amount of the MITTS Securities, and were deposited with DTC.

         DTC is a  limited-purpose  trust company  organized under the New York
Banking  Law,  a  "banking  organization"  within  the  meaning of the New York
Banking Law, a member of the Federal Reserve System,  a "clearing  corporation"
within the meaning of the New York  Uniform  Commercial  Code,  and a "clearing
agency" registered under to the provisions of Section 17A of the Securities and
Exchange Act of 1934, as amended.  DTC holds  securities that its  participants
deposit with DTC. DTC also  facilitates  the settlement  among  participants of
securities transactions, such as transfers and pledges, in deposited securities
through electronic  computerized  book-entry changes in participants' accounts,
thereby eliminating the need for physical movement of securities  certificates.
Direct participants of DTC include securities brokers and dealers, banks, trust
companies,  clearing  corporations and other  organizations.  DTC is owned by a
number of its direct  participants  and by the NYSE,  the AMEX and the National
Association  of  Securities  Dealers,  Inc.  Access to the DTC's system is also
available to others such as  securities  brokers and  dealers,  banks and trust
companies that clear through or maintain a custodial relationship with a direct
participant, either directly or indirectly. The rules applicable to DTC and its
participants are on file with the SEC.

         Purchases  of MITTS  Securities  under DTC's system must be made by or
through  direct  participants,  which  will  receive  a  credit  for the  MITTS
Securities on DTC's records. The ownership interest of each beneficial owner is
in turn to be  recorded  on the  records of direct and  indirect  participants.
Beneficial  owners  will not  receive  written  confirmation  from DTC of their
purchase,  but beneficial owners are expected to receive written  confirmations
providing details of the transaction,  as well as periodic  statements of their
holdings,  from the direct participants or indirect  participants through which
the  beneficial  owner  entered  into the  transaction.  Transfers of ownership
interests in the MITTS Securities are to be accomplished by entries made on the
books of participants acting on behalf of beneficial owners.

         To facilitate  subsequent  transfers,  all MITTS Securities  deposited
with DTC are registered in the name of DTC's  partnership  nominee,  Cede & Co.
The deposit of MITTS Securities with DTC and their  registration in the name of
Cede & Co.  effect no change in beneficial  ownership.  DTC has no knowledge of
the actual  beneficial  owners of the MITTS  Securities;  DTC's records reflect
only the  identity  of the  direct  participants  to whose  accounts  the MITTS
Securities  are credited,  which may or may not be the beneficial  owners.  The
participants  will remain  responsible for keeping account of their holdings on
behalf of their customers.

         Conveyance  of  notices  and  other  communications  by DTC to  direct
participants,  by direct participants to indirect  participants,  and by direct
and indirect participants to beneficial owners will be governed by arrangements
among them,  subject to any statutory or regulatory  requirements  as may be in
effect from time to time.

         Neither  DTC nor Cede & Co. will  consent or vote with  respect to the
MITTS  Securities.  Under its usual  procedures,  DTC mails an omnibus proxy to
ML&Co. as soon as possible after the applicable  record date. The omnibus proxy
assigns Cede & Co.'s  consenting or voting rights to those direct  participants
identified  in a listing  attached to the omnibus  proxy to whose  accounts the
MITTS  Securities  are  credited  on the record  date  identified  in a listing
attached to the omnibus proxy.

         Principal,  premium, if any, and/or interest,  if any, payments on the
MITTS  Securities  will be made in  immediately  available  funds to DTC. DTC's
practice is to credit direct  participants'  accounts on the applicable payment
date in accordance  with their  respective  holdings shown on the  depositary's
records  unless DTC has reason to believe  that it will not receive  payment on
that date.  Payments by participants  to beneficial  owners will be governed by
standing  instructions and customary practices,  as is the case with securities
held for the  accounts of  customers  in bearer form or  registered  in "street
name",  and will be the  responsibility  of the participant and not of DTC, the
trustee or ML&Co.,  subject to any statutory or regulatory  requirements as may
be in effect from time to time. Payment of principal,  premium,  if any, and/or
interest,  if any,  to DTC is the  responsibility  of  ML&Co.  or the  trustee,
disbursement of payments to direct  participants is the  responsibility of DTC,
and disbursement of payments to the beneficial owners is the  responsibility of
direct and indirect participants.

          Exchange for Certificated Securities

          If:

    o    the  depositary  is at any time  unwilling  or unable to  continue  as
         depositary  and a  successor  depositary  is not  appointed  by ML&Co.
         within 60 days,

    o    ML&Co.  executes  and  delivers to the trustee a company  order to the
         effect that the global securities shall be exchangeable, or

    o    an Event of  Default  under the 1983  Indenture  has  occurred  and is
         continuing with respect to the MITTS Securities,

the global  securities will be exchangeable  for MITTS Securities in definitive
form of like tenor and of an equal aggregate principal amount, in denominations
of $10 and integral  multiples of $10. The definitive  MITTS Securities will be
registered in the name or names as the  depositary  shall instruct the trustee.
It is expected that  instructions may be based upon directions  received by the
depositary from participants with respect to ownership of beneficial  interests
in the global securities.

         In addition,  ML&Co.  may decide to  discontinue  use of the system of
book-entry transfers through the depositary. In that event, MITTS Securities in
definitive form will be printed and delivered.

          The  information  in this section  concerning DTC and DTC's system has
been obtained from sources that ML&Co. believes to be reliable, but ML&Co. takes
no responsibility for its accuracy .
    

SAME-DAY SETTLEMENT AND PAYMENT

   
         All payments of principal and the Supplemental  Redemption  Amount, if
any, will be made by ML&Co. in immediately available funds so long as the MITTS
Securities are maintained in book-entry form.
    




<PAGE>


                                   THE INDEX

   
         The value of the Major 11 International Index on any Index Business Day
is calculated and  disseminated  by the AMEX. The AMEX generally  calculates and
disseminates  the value of the index based on the most recently  reported values
of the  sub-indices,  at  approximately  15-second  intervals  during the AMEX's
business hours and the end of each Index Business Day via the Consolidated  Tape
Association's  Network B. The index is reported on the AMEX and Bloomberg  under
the symbol "EUX" and on Reuters  under the symbol  ".EUX".  The  Starting  Index
Value was set to 100 on the date the MITTS  Securities  were  priced for initial
sale to the public (the "Pricing Date").
    

DETERMINATION OF INDEX MULTIPLIER FOR EACH SUB-INDEX

   
         The initial  weighting of each sub-index was determined at the close of
business on the Pricing Date based on its relative  market  capitalization.  The
market  capitalization  of a stock  equals the  product  of the total  number of
shares  outstanding  and the  price per share of that  stock.  The total  market
capitalization  of the stocks comprising each sub-index was determined using the
most recently available information  concerning the number of shares outstanding
for each stock  contained in a sub-index and the most recently  available  price
for each share of that stock. Current exchange rates were used to translate this
market capitalization  information into U.S. dollars. The market capitalizations
expressed in U.S.  dollars of each  sub-index  were  totaled (the "Total  Market
Capitalization"). The weighting of each sub-index was then determined and equals
the percentage of the market  capitalization  for such sub-index relative to the
Total Market  Capitalization.  The Index  Multiplier for each sub-index was then
calculated and equals:

    o    the weighting for such sub-index multiplied by 100, divided by

    o    the most recently available value of such sub-index.

The Index Multipliers were calculated in this way so that the index would equal
100.00 on the Pricing Date.

         The Index Multiplier for each sub-index will remain fixed, except that
the AMEX may adjust the Index  Multiplier in the event of a significant  change
in how a sub-index is calculated.  There will be no periodic rebalancing of the
index  to  reflect  changes  in  the  relative  market  capitalizations  of the
sub-indices.
    

COMPUTATION OF THE INDEX

   
         The index is  calculated by totaling the products of the most recently
available value of each sub-index and the Index  Multiplier  applicable to each
sub-index.  Because  the  sub-indices  are  based  on  stocks  traded  on stock
exchanges in Europe,  Asia and Australia,  once the applicable  stock exchanges
close and the values of the sub-indices  become fixed until the stock exchanges
reopen, the value of the index will be fixed.

 SUB-INDICES

         The  following is a list of the  sub-indices  and certain  information
concerning  each  sub-index.   All  disclosure  contained  in  this  prospectus
regarding the sub-indices is derived from publicly available information.
    

         NIKKEI STOCK AVERAGE, "NIKKEI 225"

         Description  of Nikkei  225:  The Nikkei 225 is intended to provide an
         indication  of the pattern of common  stock price  movement of the 225
         most actively  traded common stocks on the Tokyo Stock  Exchange.  The
         Nikkei  225 is a modified  price-weighted  index  which  means that an
         underlying  stock's weight in the Nikkei 225 is based on its price per
         share rather than the total market capitalization of the issuer.

   
         PUBLISHER:   Nihon Keizai Shimbun, Inc.  or also known as NKS

         Required  Disclosure:  NKS is  under no  obligation  to  continue  the
         calculation and  dissemination of the Nikkei 225. The MITTS Securities
         are not  sponsored,  endorsed,  sold or promoted by NKS. No  inference
         should be drawn from the information contained in this prospectus that
         NKS makes any representation or warranty,  implied or express, to ML &
         Co., the holders of the MITTS  Securities  or any member of the public
         regarding the advisability of investing in securities  generally or in
         the MITTS Securities in particular or the ability of the Nikkei 225 to
         track general stock market performance.  NKS has no obligation to take
         the needs of ML & Co. or the  holders  of the  MITTS  Securities  into
         consideration in determining, composing or calculating the Nikkei 225.
         NKS  is  not  responsible   for,  and  has  not  participated  in  the
         determination  of the timing of,  prices  for, or  quantities  of, the
         MITTS  Securities to be issued or in the  determination or calculation
         of the  equation  by which the MITTS  Securities  are to be settled in
         cash.  NKS has no  obligation  or  liability  in  connection  with the
         administration, marketing or trading of the MITTS Securities.

         NKS has  consented  to the use of and  reference  to the Nikkei 225 in
         connection with the MITTS Securities.
    

         FINANCIAL TIMES SE 100 INDEX "FTSE 100"

         DESCRIPTION  OF FTSE  100:  The FTSE 100 is  intended  to  provide  an
         indication  of the pattern of common  stock price  movement of the 100
         common  stocks with the largest  market  capitalization  on the London
         Stock Exchange.

         PUBLISHER:   The Financial Times and London Stock Exchange

   
         REQUIRED DISCLOSURE:  The FTSE 100 is calculated by FTSE International
         Limited in conjunction with the Institute of Actuaries and the Faculty
         of Actuaries. ML&Co. has obtained full license from FTSE International
         Limited to use its  trademark  and  copyright  in the creation of this
         MITTS Security.  FTSE International Limited does not sponsor,  endorse
         or promote this MITTS Security.
    

         DEUTSCHER AKTIENINDEX, "DAX(R)"

         DESCRIPTION OF DAX: The DAX is a total rate of return index  measuring
         the  performance  of 30 common stocks on the Frankfurt  Stock Exchange
         selected  on the  basis of their  market  capitalization  and  trading
         volume.  A  total  rate  of  return  index  reflects  both  the  price
         performance  of the relevant  common  stocks as well as the  dividends
         paid on such common stocks.

         PUBLISHER:   Deutsche Borse AG

         "DAX" is a registered trademark of Deutsche Borse AG.

         COMPAGNIE DES AGENTS DE CHANGE 40 INDEX, "CAC 40"

         DESCRIPTION OF CAC 40: The CAC 40 is intended to provide an indication
         of the pattern of common stock price  movement of the 40 common stocks
         with the largest market capitalization on the Paris Bourse.

         PUBLISHER:   SBF-Paris Bourse

   
         REQUIRED DISCLOSURE: "CAC-40" is a registered trademark of the Societe
         des Bourses  Francaises-Paris  Bourse, which designates the index that
         the SBF-Paris  Bourse  calculates and publishes.  Authorization to use
         the index and the  "CAC-40"  trademark  in  connection  with the MITTS
         Securities has been granted by license.

         The SBF-Paris Bourse,  owner of the trademark and of the CAC-40,  does
         not  sponsor,  endorse or  participate  in the  marketing of the MITTS
         Securities.  The SBF-Paris Bourse makes no warranty or  representation
         to any  person,  express  or  implied,  as to the  figure at which the
         CAC-40  stands  at any  particular  time,  nor as to  the  results  or
         performance  of the MITTS  Securities.  Neither  shall  the  SBF-Paris
         Bourse be under any  obligation  to advise  any person of any error in
         the published CAC-40.
    

         SWISS MARKET INDEX, "SMI(R)"

         DESCRIPTION  OF SMI: The SMI is intended to provide an  indication  of
         the pattern of common stock price  movement of common  stocks with the
         largest market  capitalization  and greatest  liquidity on the Geneva,
         Zurich and Basle Stock Exchanges.

         PUBLISHER:   Swiss Exchange

   
         REQUIRED  DISCLOSURE:  "SMI" is a  registered  trademark  of the Swiss
         Exchange. The MITTS Securities are not in any way sponsored, endorsed,
         sold or promoted by the Swiss Exchange and the Swiss Exchange makes no
         warranty or representation  whatsoever,  express or implied, either as
         to the  results  to be  obtained  from the use of the SMI  and/or  the
         figure  at  which  the  SMI  stands  at  any  particular  time  on any
         particular day or otherwise. The SMI is compiled and calculated solely
         by the Swiss Exchange. However, the Swiss Exchange shall not be liable
         whether in  negligence or otherwise to any person for any error in the
         SMI and the Swiss  Exchange  shall  have no  obligation  to advise any
         person of any error in SMI.
    

         AMSTERDAM EXCHANGES-INDEX(R), "AEX-INDEX(R)"

         DESCRIPTION  OF AEX: The AEX is intended to provide an  indication  of
         the  pattern of common  stock price  movement of the 25 common  stocks
         with  the  largest  market   capitalization  on  the  Amsterdam  Stock
         Exchange.

   
         PUBLISHER:    AEX-Optiebeurs nv

         REQUIRED  DISCLOSURE:  "AEX-index"  is a  registered  trademark of the
         AEX-Optiebeurs  nv. The  AEX-Optiebeurs nv has all proprietary  rights
         with  relation to the AEX. The  AEX-Optiebeurs  nv in no way sponsors,
         endorses or is  otherwise  involved  in the issue and  offering of the
         MITTS Securities. The AEX-Optiebeurs nv disclaims any liability to any
         party for any  inaccuracy  in the data on which the AEX is based,  for
         any mistakes, errors, or omissions in the calculation or dissemination
         of the AEX or for the  manner in which  the AEX is used in  connection
         with the issue and offering of the MITTS Securities.
    

         AMEX HONG KONG 30 INDEX-, "HK30"

         DESCRIPTION  OF HK30: The HK30 is intended to provide an indication of
         the pattern of common stock price  movement of 30 common stocks listed
         on the Hong Kong Stock  Exchange  and  selected on the basis of market
         weight, trading liquidity and representation of business industry.

         PUBLISHER:   The American Stock Exchange

   
         REQUIRED  DISCLOSURE:  The "AMEX Hong Kong 30 Index" is a service mark
         of the AMEX.  The AMEX in no way  sponsors,  endorses or is  otherwise
         involved in the issuance of the MITTS Securities,  other than the fact
         that the MITTS  Securities  will be listed  and traded on the AMEX and
         the AMEX will calculate and  disseminate  the Major 11 Index,  and the
         AMEX  disclaims any  liability to any party for any  inaccuracy in the
         data on which the HK30 is based, for any mistakes, errors or omissions
         in the  calculation,  and/or  dissemination  of the  HK30,  or for the
         manner in which it is applied in  connection  with the issuance of the
         MITTS Securities.

         AMEX has  consented  to the use and  reference  to the term "AMEX Hong
Kong 30 Index".
    

         AUSTRALIA ALL ORDINARIES INDEX, "XAO"

         DESCRIPTION OF XAO: The XAO is a capitalization-weighted  index of 338
         common stocks listed on the Australian Stock Exchange.

         PUBLISHER:   ASX Operations Pty Limited

   
         REQUIRED  DISCLOSURE:  The  XAO  is a  registered  trade  mark  of ASX
         Operations  Pty  Limited or ASXO,  a  wholly-owned  subsidiary  of the
         Australian  Stock Exchange  Limited or ASX. ASXO has granted a license
         for the use of the XAO on the basis  that ASXO does not  expressly  or
         impliedly approve,  endorse,  make any judgment or express any opinion
         in  respect  of the M&L & Co.  or the  MITTS  Securities.  ASX and its
         related corporations, shall have no liability for any claim whatsoever
         where the claim  arises  wholly or  substantially  out of  accident or
         negligence  of ASX, its related  corporations  and their  servants and
         agents as the case may be or acts of third parties; and without in any
         way  limiting  the  generality  of  the  foregoing,   arising  out  of
         unavailability  of the All  Ordinaries  Index or non-supply of the All
         Ordinaries Index.
    

         MILANO ITALIA BORSA 30 INDEX, "MIB 30"

         DESCRIPTION OF MIB 30: The MIB 30 is intended to provide an indication
         of the pattern of common  stock price  movement of common  stocks with
         the  largest  market  capitalization  and  greatest  liquidity  on the
         Italian Stock Exchange.

         PUBLISHER:   Consiglio di Borsa

         STOCKHOLM OPTIONS MARKET INDEX, "OMX index"

         DESCRIPTION  OF OMX  INDEX:  The OMX index is  intended  to provide an
         indication  of the pattern of common  stock  price  movement of the 30
         common  stocks  with the  largest  volume of trading on the  Stockholm
         Stock Exchange.

         PUBLISHER:   OM Gruppen AB

   
         REQUIRED  DISCLOSURE:   The  MITTS  Securities  are  not  in  any  way
         sponsored,  endorsed,  sold or  promoted by OM Gruppen AB or OM and OM
         makes no warranty or  representation  whatsoever,  express or implied,
         either as to the results to be obtained  from the use of the OMX index
         and/or the figure at which the said OMX index stands at any particular
         time on any particular day or otherwise. The OMX index is compiled and
         calculated solely by an indexer on behalf of OM. However, OM shall not
         be liable  whether in  negligence  or  otherwise to any person for any
         error in the OMX index and OM shall  not be under  any  obligation  to
         advise any person of any error therein.
    

         All rights to the trademark OMX, OMX INDEX are vested in OM Gruppen AB
         and are used under a license agreement with OM.

         IBEX 35 INDEX, "IBEX 35"

         DESCRIPTION  OF  IBEX  35:  The  IBEX 35 is  intended  to  provide  an
         indication  of the pattern of common  stock  price  movement of the 35
         common  stocks with the  greatest  liquidity  continuously  traded and
         quoted on the Joint Stock  Exchange  System made up of the  Barcelona,
         Bilbao, Madrid and Valencia stock exchanges.

         PUBLISHER:   Sociedad de Bolsas, S.A.

         REQUIRED DISCLOSURE:  Sociedad de Bolsas, S.A. does not warrant in any
         case nor for any reason whatsoever:

         (a)  the continuity of the composition of the IBEX 35 exactly as it is
              today;

         (b)  the continuity of the method for  calculating the IBEX 35 exactly
              as it is calculated today;

         (c)  the continuity of the calculation, formula and publication of the
              IBEX 35;

         (d)  the  precision,  integrity  or freedom from errors or mistakes in
              the composition and calculation of the IBEX 35; and

   
         (e)  the  adequacy  of the IBEX 35 for the  purposes  expected  in the
              issue of the MITTS Securities nor for dealing in the same.

         The  publisher  of each  sub-index  will add or delete  stocks  due to
events such as the bankruptcy or merger of the issuer of a stock. The publisher
of a sub-index may  reevaluate  the  composition  of the stocks  underlying the
sub-index at specified  intervals to assure that they still meet the  selection
criteria or any ongoing eligibility criteria.

         The  publisher of a sub-index is under no  obligation  to continue the
calculation and  dissemination  of such sub-index and such publisher may change
the  method by which  such  sub-index  is  calculated.  The  publishers  of the
sub-indices  are under no obligation to take the needs of ML&Co. or the holders
of the MITTS into  consideration  in determining,  composing or calculating the
sub-indices.
    



<PAGE>


                                  OTHER TERMS

   
         The MITTS Securities were issued as a series of senior debt securities
under the 1983  Indenture,  dated as of April 1, 1983, as amended and restated,
between ML&Co.  and The Chase  Manhattan  Bank, as trustee.  A copy of the 1983
Indenture is filed as an exhibit to the registration  statement relating to the
MITTS Securities of which this prospectus is a part. The following summaries of
the material  provisions of the 1983 Indenture are not complete and are subject
to, and qualified in their entirety by reference to, all provisions of the 1983
Indenture, including the definitions of terms in the 1983 Indenture.

         Series of senior debt securities may from time to time be issued under
the 1983 Indenture, without limitation as to aggregate principal amount, in one
or more series and upon terms as ML&Co.  may establish  under the provisions of
the 1983 Indenture.

         The 1983  Indenture  and the  MITTS  Securities  are  governed  by and
construed in accordance with the laws of the State of New York.

         ML&Co.  may issue senior debt  securities  with terms  different  from
those of senior debt securities  previously issued, and issue additional senior
debt securities of a previously issued series of senior debt securities.

         The senior debt  securities  are  unsecured  and rank equally with all
other  unsecured and  unsubordinated  indebtedness of ML&Co.  However,  because
ML&Co. is a holding company, the rights of ML&Co. and its creditors,  including
the holders of senior debt  securities,  to participate in any  distribution of
the  assets  of any  subsidiary  upon  its  liquidation  or  reorganization  or
otherwise  are  necessarily  subject to the prior  claims of  creditors  of the
subsidiary,  except to the extent that claims of ML&Co. itself as a creditor of
the subsidiary may be recognized.  In addition,  dividends,  loans and advances
from certain  subsidiaries,  including  MLPF&S, to ML&Co. are restricted by net
capital  requirements  under the Exchange Act, and under rules of exchanges and
other regulatory bodies.
    

LIMITATIONS UPON LIENS

   
         ML&Co. may not, and may not permit any  majority-owned  subsidiary to,
create,  assume,  incur or permit to exist any  indebtedness for borrowed money
secured  by a  pledge,  lien or  other  encumbrance,  other  than  those  liens
specifically  permitted  by the  1983  Indenture,  on the  Voting  Stock  owned
directly or indirectly by ML&Co. of any majority-owned subsidiary, other than a
majority-owned  subsidiary  which, at the time of the incurrence of the secured
indebtedness,  has a net worth of less than $3,000,000,  unless the outstanding
senior  debt  securities  are  secured  equally  and  ratably  with the secured
indebtedness.

         "Voting  Stock" is defined in the 1983  Indenture  as the stock of the
class or classes having general  voting power under ordinary  circumstances  to
elect at least a majority of the board of directors,  managers or trustees of a
corporation  provided that, for the purposes of the 1983 Indenture,  stock that
carries only the right to vote  conditionally  on the occurrence of an event is
not considered voting stock whether or not the event has happened.
    

LIMITATION ON DISPOSITION OF VOTING STOCK OF, AND MERGER AND SALE OF
ASSETS BY, MLPF&S

   
         ML&Co. may not sell, transfer or otherwise dispose of any Voting Stock
of MLPF&S or permit  MLPF&S to issue,  sell or otherwise  dispose of any of its
Voting  Stock,  unless,  after giving  effect to any such  transaction,  MLPF&S
remains a Controlled Subsidiary.

         "Controlled  Subsidiary"  is defined in the 1983  Indenture  to mean a
corporation  more than 80% of the  outstanding  shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

         In addition,  ML&Co. may not permit MLPF&S to:

    o    merge or  consolidate,  unless the  surviving  company is a Controlled
         Subsidiary, or
    

    o    convey or  transfer  its  properties  and assets  substantially  as an
         entirety, except to one or more Controlled Subsidiaries.

MERGER AND CONSOLIDATION

   
          ML&Co. may consolidate or merge with or into any other corporation and
ML&Co. may sell,  lease or convey all or substantially  all of its assets to any
corporation, provided that:

    o    the  resulting  corporation,  if other than ML&Co.,  is a  corporation
         organized and existing  under the laws of the United States of America
         or any U.S. state and assumes all of ML&Co.'s obligations to:

         o    pay any amounts due and payable or  deliverable  with  respect to
              all the Senior Debt Securities ; and

         o    perform and observe of all of ML&Co.'s obligations under the 1983
              Indenture, and

    o    ML&Co.  or the  successor  corporation,  as the case  may be,  is not,
         immediately  after any  consolidation or merger,  in default under the
         1983 Indenture.
    

MODIFICATION AND WAIVER

   
         ML&Co.  and the trustee may modify and amend the 1983  Indenture  with
the  consent  of  holders  of at  least  66 2/3% in  principal  amount  of each
outstanding series of debt securities affected. However, without the consent of
each  holder  of any  outstanding  debt  security  affected,  no  amendment  or
modification to any Indenture may:

    o    change  the  stated   maturity  date  of  the  principal  of,  or  any
         installment of interest or Additional  Amounts  payable on, any senior
         debt  security or any premium  payable on  redemption  , or change the
         redemption price;

    o    reduce the principal amount of, or the interest or Additional  Amounts
         payable on, any senior debt security or reduce the amount of principal
         which could be declared  due and  payable  before the stated  maturity
         date;

    o    change  the place or  currency  of any  payment  of  principal  or any
         premium,  interest or  Additional  Amounts  payable on any senior debt
         security;

    o    impair the right to institute suit for the  enforcement of any payment
         on or with respect to any senior debt security;

    o    reduce the percentage in principal  amount of the  outstanding  senior
         debt  securities  of any  series,  the  consent  of whose  holders  is
         required to modify or amend the 1983 Indenture; or

    o    modify  the  foregoing   requirements  or  reduce  the  percentage  of
         outstanding senior debt securities necessary to waive any past default
         to less than a majority.

         No modification or amendment of ML&Co.'s Subordinated Indenture or any
Subsequent  Indenture for subordinated debt securities may adversely affect the
rights of any holder of  ML&Co.'s  senior  indebtedness  without the consent of
each holder affected. The Holders of at least a majority in principal amount of
outstanding  senior debt  securities  of any series may,  with  respect to that
series,  waive past defaults under the Indenture and waive compliance by ML&Co.
with provisions in the 1983  Indenture,  except as described under "--Events of
Default".

 EVENTS OF DEFAULT

         Each of the following will be Events of Default with respect to senior
         debt securities of any series:

         o    default in the  payment of any  interest  or  Additional  Amounts
              payable when due and continuing for 30 days;

         o    default in the payment of any principal or premium when due;

         o    default in the deposit of any sinking fund payment, when due;

         o    default  in the  performance  of any other  obligation  of ML&Co.
              contained in the  Indenture  for the benefit of that series or in
              the senior debt securities of that series, continuing for 60 days
              after written notice as provided in the 1983 Indenture;

         o    specified events in bankruptcy,  insolvency or  reorganization of
              ML&Co.; and

         o    any other Event of Default  provided  with respect to senior debt
              securities  of that series  which are not  inconsistent  with the
              1983 Indenture.

If an Event of Default  occurs and is continuing  for any series of senior debt
securities,   other  than  as  a  result  of  the  bankruptcy,   insolvency  or
reorganization  of  ML&Co.,  the  trustee  or the  holders  of at least  25% in
principal  amount of the outstanding  senior debt securities of that series may
declare  all  amounts,  or any lesser  amount  provided  for in the senior debt
securities,  due and payable or  deliverable  immediately.  At any time after a
declaration  of  acceleration  has  been  made  with  respect  to  senior  debt
securities  of any series but before the  trustee  has  obtained a judgment  or
decree for payment of money , the holders of a majority in principal  amount of
the  outstanding  senior  debt  securities  of  that  series  may  rescind  any
declaration of acceleration  and its  consequences,  if all payments due, other
than  those due as a result of  acceleration,  have been made and all Events of
Default have been remedied or waived.

         The holders of a majority in principal amount or aggregate issue price
of the  outstanding  debt securities of any series of debt securities may waive
any Event of Default with respect to that series, except a default:

         o    in the  payment of any  amounts  due and  payable or  deliverable
              under the debt securities of that series; or

         o    in respect of an obligation  or provision of any Indenture  which
              cannot be modified under the terms of that Indenture  without the
              consent  of  each  holder  of  each  series  of  debt  securities
              affected.

         The  holders  of a majority  in  principal  amount of the  outstanding
senior  debt  securities  of a series may direct the time,  method and place of
conducting any proceeding for any remedy available to the trustee or exercising
any trust or power  conferred  on the trustee with respect to those senior debt
securities,  provided that any direction shall not be in conflict with any rule
of law or the 1983 Indenture.  Before proceeding to exercise any right or power
under the 1983 Indenture at the direction of the holders,  the trustee shall be
entitled to receive  from the Holders  reasonable  security or  indemnification
against the costs,  expenses and  liabilities  which might be incurred by it in
complying with any direction.

         The MITTS Securities and other series of senior debt securities issued
under  the  1983  Indenture  do not  have  the  benefit  of  any  cross-default
provisions with other indebtedness of ML&Co.

         ML&Co.  is required to furnish to the trustee  annually a statement as
to  the  fulfillment  by  ML&Co.  of  all of its  obligations  under  the  1983
Indenture.
    



<PAGE>


   
                           PROJECTED PAYMENT SCHEDULE

         Solely  for  purposes  of  applying  the  final  Treasury   Department
Regulations  (the "Final  Regulations")  concerning  the United States  Federal
income tax  treatment  of  contingent  payment  debt  instruments  to the MITTS
Securities,  we have  determined  that the projected  payment  schedule for the
MITTS  Securities will consist of payment on the maturity date of the principal
amount thereof and a projected Supplemental  Redemption Amount equal to $3.6261
per unit. This represents an estimated yield on the MITTS  Securities  equal to
6.25% per annum (compounded semiannually).

         The projected payment schedule,  including both projected Supplemental
Redemption  Amount and the estimated  yield on the MITTS  Securities,  has been
determined  solely for United  States  Federal  income tax purposes  i.e.,  for
purposes of applying  the Final  Regulations  to the MITTS  Securities,  and is
neither a prediction nor a guarantee of what the actual Supplemental Redemption
Amount  will be, or that the actual  Supplemental  Redemption  Amount will even
exceed zero.

         The  following  table sets forth the amount of  interest  that will be
deemed to have accrued with respect to each unit of the MITTS Securities during
each  accrual  period  over a term of five  years  and ten days  for the  MITTS
Securities based upon the projected  payment schedule for the MITTS Securities,
including both the projected  Supplemental  Redemption Amount and the estimated
yield  equal to 6.25% per annum,  compounded  semiannually,  as  determined  by
ML&Co. for purposes of illustrating the application of the Final Regulations to
the MITTS Securities:
    

<TABLE>
<CAPTION>
                                                                            TOTAL INTEREST
                                                           INTEREST DEEMED  DEEMED TO HAVE
                                                                 TO           ACCRUED ON
                                                            ACCRUE DURING  SECURITIES AS OF
                                                           ACCRUAL PERIOD    END OF
                                                            (PER  UNIT)     ACCRUAL PERIOD
                      ACCRUAL PERIOD                                        (PER  UNIT)
                      --------------                       -------------     -----------
<S>                                                          <C>              <C>    
     November 26, 1997 through December 6, 1997.........      $0.0169          $0.0169
     December 7, 1997 through June 6, 1998..............      $0.3130          $0.3299
     June 7, 1998 through December 6, 1998..............      $0.3228          $0.6527
     December 7, 1998 through June 6, 1999..............      $0.3329          $0.9856
     June 7, 1999 through December 6, 1999..............      $0.3433          $1.3289
     December 7, 1999 through June 6, 2000..............      $0.3540          $1.6829
     June 7, 2000 through December 6, 2000..............      $0.3651          $2.0480
     December 7, 2000 through June 6, 2001..............      $0.3765          $2.4245
     June 7, 2001 through December 6, 2001..............      $0.3883          $2.8128
     December 7, 2001 through June 6, 2002..............      $0.4004          $3.2132
     June 7, 2002 through December 6, 2002..............      $0.4129          $3.6261

</TABLE>

Projected Supplemental Redemption Amount = $3.6261 per unit.

         All prospective investors in the MITTS Securities should consult their
own tax advisors  concerning the application of the Final  Regulations to their
investment in the MITTS Securities.  Investors in the MITTS Securities may also
obtain the projected payment schedule,  as determined by ML&Co. for purposes of
the application of the Final Regulations to the MITTS Securities, by submitting
a written  request for such  information  to Merrill Lynch & Co.,  Inc.,  Attn:
Darryl W. Colletti,  Corporate  Secretary's  Office,  100 Church  Street,  12th
Floor, New York, New York 10080-6512.


   
                      WHERE YOU CAN FIND MORE INFORMATION

         We file reports,  proxy statements and other information with the SEC.
Our SEC filings are also  available  over the Internet at the SEC's web site at
http://www.sec.gov. You may also read and copy any document we file by visiting
the SEC's public  reference rooms in Washington,  D.C., New York, New York, and
Chicago,   Illinois.   Please  call  the  SEC  at  1-800-SEC-0330  for  further
information  about the public  reference  rooms.  You may also  inspect our SEC
reports and other  information at the New York Stock  Exchange,  Inc., 20 Broad
Street, New York, New York 10005.

         We have  filed a  registration  statement  on Form  S-3  with  the SEC
covering the MITTS Securities and other securities.  For further information on
ML&Co. and the MITTS Securities, you should refer to our registration statement
and its exhibits.  This prospectus  summarizes material provisions of contracts
and  other  documents  that we refer you to.  Because  the  prospectus  may not
contain all the information that you may find important,  you should review the
full text of these  documents.  We have included  copies of these  documents as
exhibits to our registration statement of which this prospectus is a part.


               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

         The SEC allows us to incorporate by reference the  information we file
with them, which means:

    o    incorporated documents are considered part of the prospectus;

    o    we can disclose important information to you by referring you to those
         documents; and

    o    information  that we file with the SEC will  automatically  update and
         supersede this incorporated information.

         We  incorporate  by reference  the  documents  listed below which were
filed with the SEC under the Exchange Act:

    o    annual report on Form 10-K for the year ended December 25, 1998; and

    o    current reports on Form 8-K dated December 28, 1998,  January 19, 1999,
         February 17, 1999,  February 18, 1999,  February 22, 1999, February 23,
         1999 and March 26, 1999.

         We also  incorporate by reference each of the following  documents that
we will file with the SEC after the date of this prospectus  until this offering
is completed or after the date of this initial registration statement and before
the effectiveness of the registration statement:

    o    reports filed under Sections 13(a) and (c) of the Exchange Act;

    o    definitive  proxy or information  statements filed under Section 14 of
         the  Exchange  Act in  connection  with any  subsequent  stockholders'
         meeting; and

    o    any reports filed under Section 15(d) of the Exchange Act.

         You should  rely only on  information  contained  or  incorporated  by
reference in this prospectus.  We have not, and MLPF&S has not,  authorized any
other person to provide you with different information.  If anyone provides you
with different or inconsistent  information,  you should not rely on it. We are
not,  and  MLPF&S  is not,  making  an offer to sell  these  securities  in any
jurisdiction where the offer or sale is not permitted.

         You should assume that the information appearing in this prospectus is
accurate  as of the  date of this  prospectus  only.  Our  business,  financial
condition and results of operations may have changed since that date.

         You may  request a copy of any filings  referred  to above  (excluding
exhibits),  at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan,  Jr.,  Corporate  Secretary's  Office,  Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.


                              PLAN OF DISTRIBUTION

         This  prospectus has been prepared in connection  with secondary sales
of the MITTS  Securities  and is to be used by MLPF&S  when  making  offers and
sales related to market-making transactions in the MITTS Securities.

         MLPF&S  may  act  as  principal   or  agent  in  these   market-making
transactions.

         The MITTS Securities may be offered on the AMEX or off the exchange in
negotiated transactions or otherwise.

         The   distribution  of  the  MITTS  Securities  will  conform  to  the
requirements  set forth in the applicable  sections of Rule 2720 of the Conduct
Rules of the NASD.
    


                                    EXPERTS

   
         The  consolidated  financial  statements  and the  related  financial
statement  schedule  incorporated  in this  prospectus  by reference  from the
Annual Report on Form 10-K of Merrill Lynch & Co., Inc. and subsidiaries  have
been  audited by Deloitte & Touche  LLP,  independent  auditors,  as stated in
their reports (which  express an  unqualified  opinion and which report on the
consolidated  financial  statements includes an explanatory  paragraph for the
change in  accounting  method for certain  internal-use  software  development
costs),  which  are  incorporated  herein  by  reference,  and  have  been  so
incorporated  in  reliance  upon the  reports  of such firm  given  upon their
authority as experts in accounting and auditing.

    
<PAGE>
   
The information in this  prospectus is not complete and may be changed.  We may
not sell  these  securities  until the  registration  statement  filed with the
Securities  and Exchange  Commission  is effective.  This  prospectus is not an
offer to sell these  securities  and it is not soliciting an offer to buy these
securities in any state where the offer or sale is not permitted.
    

                             Subject to Completion
   
                  Preliminary Prospectus dated March 29, 1999
    


P R O S P E C T U S
   
    

                           MERRILL LYNCH & CO., INC.
   
    S&P 500 INFLATION ADJUSTED MARKET INDEX TARGET-TERM SECURITIES(R) DUE
                               SEPTEMBER 24, 2007
                             "MITTS(R) SECURITIES"

         This  prospectus is to be used by Merrill Lynch & Co.,  Merrill Lynch,
Pierce, Fenner & Smith Incorporated,  our wholly-owned subsidiary,  when making
offers and sales related to market-making transactions in the MITTS Securities.
    



<PAGE>


   
 The MITTS Securities:                   Payment at Maturity:                  
                                                                            
o   100%   principal   protection  at    o   On the  maturity  date,  for each 
    maturity                                 unit of the MITTS  Securities you 
o   No payments  before the  maturity        own,  we will  pay you an  amount 
    date                                     equal to the sum of               
o   Senior  unsecured debt securities    o   the  principal   amount  of  each 
    of Merrill Lynch & Co., Inc.             unit, adjusted by the CPI, and    
o   Linked  to the  value  of the S&P    o   an additional amount based on the 
    500 Index                                percentage  increase,  if any, in 
o   The MITTS  Securities  are listed        the  value of the S&P 500  Index, 
    on the New  York  Stock  Exchange        adjusted  as  described  in  this 
    under the symbol "IEM".                  prospectus.                       
                                         o   You will receive no less than the 
                                             principal  amount  of your  MITTS 
                                             Securities   and  the  additional 
                                             amount you receive,  if any, will 
                                             not exceed $10.                   
                                       

<PAGE>



   
               INVESTING IN THE MITTS SECURITIES INVOLVES RISKS.
                    SEE "RISK FACTORS" BEGINNING ON PAGE 3.
    


         Neither  the  Securities   and  Exchange   Commission  nor  any  state
securities  commission  has  approved or  disapproved  of these  securities  or
determined if this prospectus is truthful or complete.  Any  representation  to
the contrary is a criminal offense.

   
         The sale price of the MITTS  Securities will be the prevailing  market
price at the time of sale.

                                ----------------
    

                              MERRILL LYNCH & CO.
   
                                ----------------

                     The date of this prospectus is , 1999.

"MITTS" and "Market Index Target-Term  Securities" are registered service marks
owned by Merrill Lynch & Co., Inc.  "Standard & Poor's(R)",  "Standard & Poor's
500",  "S&P 500(R)",  "S&P(R)" and "500",  are  trademarks  of The  McGraw-Hill
Companies,  Inc.  and have  been  licensed  for use by  Merrill  Lynch  Capital
Services, Inc. and ML&Co. is an
    
authorized sublicensee.




<PAGE>

   
                               Table of Contents
                                                                          Page

RISK FACTORS.................................................................3

MERRILL LYNCH & CO., INC.....................................................6

RATIO OF EARNINGS TO FIXED CHARGES...........................................7

DESCRIPTION OF THE MITTS SECURITIES..........................................8

THE INDEX...................................................................15

CONSUMER PRICE INDEX........................................................18

OTHER TERMS.................................................................18

PROJECTED PAYMENT SCHEDULE..................................................22

WHERE YOU CAN FIND MORE INFORMATION.........................................23
    

INCORPORATION OF INFORMATION WE FILE WITH THE SEC...........................23

   
PLAN OF DISTRIBUTION........................................................24

EXPERTS.....................................................................24
    





<PAGE>




                                  RISK FACTORS

   
         Your  investment in MITTS  Securities  will involve risks.  You should
carefully consider the following discussion of risks before deciding whether an
investment in the MITTS Securities is suitable for you.

YOU MAY NOT EARN A RETURN ON YOUR INVESTMENT

         You should be aware that at  maturity we will pay you no more than the
principal amount, as adjusted, for each unit of the MITTS Securities you own if
the average  value of the S&P 500 Index over five trading  days shortly  before
the maturity date is less than 1089.38.  This will be true even if the value of
the S&P 500 Index was higher  than  1089.38 at some time during the life of the
MITTS Securities but later falls below 1089.38.

         You will not receive an amount in addition to the principal amount, as
adjusted,  that exceeds $10 per unit  regardless  of how much the S&P 500 Index
increases. If the S&P 500 Index reaches a value of 2178.76, you will receive an
additional  amount of $10. Since $10 is the maximum  additional  amount we will
pay, you will not receive any  incremental  benefit from increases  beyond that
value. If we pay you the maximum  additional  amount of $10 per unit, this will
represent a maximum annualized rate of return of 7.05% compounded semi-annually
over a term of ten  years.  This  limitation  does not  apply to the  principal
amount, as adjusted,  which is dependent on changes in the Consumer Price Index
or CPI.
    

YOUR YIELD MAY BE LOWER THAN THE YIELD ON A STANDARD DEBT SECURITY OF
COMPARABLE MATURITY

   
         The  amount we pay you at  maturity  may be less than the  return  you
could  earn on other  investments.  Your  yield  may be less than the yield you
would earn if you bought a standard senior non-callable debt security of ML&Co.
with  the  same  maturity  date.  Your  investment  may not  reflect  the  full
opportunity cost to you when you consider the effect of factors that affect the
time value of money.

YOUR RETURN WILL NOT REFLECT THE PAYMENT OF DIVIDENDS ON THE STOCKS INCLUDED
IN THE S&P 500 INDEX

         S&P  calculates  the S&P 500 Index by  reference  to the prices of the
common stocks  comprising the S&P 500 Index without  taking into  consideration
the value of dividends paid on those stocks.  Therefore, the return you earn on
the MITTS Securities, if any, will not be the same as the return that you would
earn if you actually  owned each of the common  stocks in the S&P 500 Index and
received the dividends paid on those stocks.

MANY FACTORS MAY AFFECT THE VALUE OF THE CONSUMER PRICE INDEX

         Changes in the CPI will affect the principal amount, as adjusted, that
we will pay you at maturity. The changes may be significant. Changes in the CPI
are a function of the changes in  specified  consumer  prices over time,  which
result from the interaction of many factors over which ML&Co. has no control.

         In the past,  the CPI has  experienced  periods of volatility and this
volatility  may occur in the  future.  Fluctuations  and trends in the CPI that
have  occurred  in  the  past  are  not  necessarily  indicative,  however,  of
fluctuations that may occur in the future.

         As a result  of any  change  of  calculating  the CPI,  the  principal
amount, as adjusted,  payable on the MITTS Securities,  and therefore the value
of  the  MITTS  Securities  could  be  significantly  reduced.  If  the  CPI is
substantially  altered,  the calculation agent may employ a substitute index to
calculate the principal amount, as adjusted, as described under "Description of
MITTS Securities--Payment at Maturity".

THERE MAY BE AN UNCERTAIN TRADING MARKET FOR THE MITTS SECURITIES IN THE FUTURE

         Although the MITTS  Securities are listed on the NYSE under the symbol
"IEM," you cannot  assume that a trading  market will continue to exist for the
MITTS  Securities.  If a trading  market in the MITTS  Securities  continues to
exist,  you cannot  assume that there will be liquidity in the trading  market.
The  continued  existence  of a trading  market for the MITTS  Securities  will
depend on our financial performance and other factors such as the appreciation,
if any, of the value of the S&P 500 Index.

         If the trading  market for the MITTS  Securities is limited and you do
not wish to hold your investment until maturity,  there may be a limited number
of buyers for your MITTS  Securities.  This may affect the price you receive if
you sell before maturity.

FACTORS AFFECTING TRADING VALUE OF THE MITTS SECURITIES

         We  believe  that the  value of the S&P 500 Index and the CPI and by a
number of other  factors will affect the market value of the MITTS  Securities.
Some of these factors are interrelated in complex ways; as a result, the effect
of any one factor may be offset or magnified  by the effect of another  factor.
The following  paragraphs  describe the expected  impact on the market value of
the MITTS Securities  given a change in a specific  factor,  assuming all other
conditions remain constant.

    o    S&P 500  Index  Value We  expect  that the  market  value of the MITTS
         Securities  will depend  substantially  on the amount by which the S&P
         500 Index exceeds 1089.38. If you choose to sell your MITTS Securities
         when the value of the S&P 500 Index exceeds 1089.38,  you may  receive
         substantially  less than the amount  that would be payable at maturity
         based on that S&P 500 Index value because of the expectation  that the
         S&P 500 Index will  continue to  fluctuate  until the  maturity of the
         MITTS Securities. If you choose to sell your MITTS Securities when the
         value of the S&P 500 Index is below 1089.38, you may receive less than
         the $10  principal  amount per unit of MITTS  Securities.  In general,
         rising U.S. dividend rates may increase the value of the S&P 500 Index
         while  falling U.S.  dividend  rates may decrease the value of the S&P
         500 Index. Political,  economic and other developments that affect the
         stocks  included in the S&P 500 Index may also affect the value of the
         S&P 500 Index and the value of the MITTS Securities.

    o    Interest Rates Because the MITTS Securities  repay, at a minimum,  the
         principal amount at maturity, we expect that changes in interest rates
         will affect the trading value of the MITTS Securities.  In general, if
         U.S. interest rates increase,  we expect that the trading value of the
         MITTS  Securities will decrease.  Conversely,  if U.S.  interest rates
         decrease,  we expect the trading  value of the MITTS  Securities  will
         increase.  Interest  rates may also  affect the U.S.  economy  and, in
         turn, the value of the S&P 500 Index.  Rising interest rates may lower
         the  value of the S&P 500  Index  and,  thus,  the  MITTS  Securities.
         Falling  rates may increase the value of the S&P 500 Index and,  thus,
         may increase the value of the MITTS Securities.

    o    Value of the CPI The  principal  amount  of the MITTS  Securities,  as
         adjusted,  will  generally  be  higher  in  direct  proportion  to the
         percentage  increase,  if any,  in the  value of the CPI from when the
         initial  CPI is fixed to when the  final CPI is  determined.  However,
         interim increases in the CPI may or may not result in increases in the
         trading  value of the  MITTS  Securities  because  of  other  economic
         factors.  For example,  an increase in the CPI may be  accompanied  by
         higher interest rates. Higher interest rates could offset any positive
         impact  of  increases  in the CPI on the  trading  value of the  MITTS
         Securities.

    o    Volatility  of the S&P 500 Index or of the CPI  Volatility is the term
         used to describe the size and frequency of market fluctuations. If the
         volatility  of the S&P 500  Index or of the CPI  increases,  we expect
         that  the  trading  value  of  the  MITTS  Securities  will  increase.
         Conversely,  if the  volatility  of the  S&P 500  Index  or of the CPI
         decreases,  we expect that the trading  value of the MITTS  Securities
         will decrease.

    o    Time Remaining to Maturity We anticipate that prior to the maturity of
         the MITTS Securities,  the MITTS Securities may trade at a value above
         that which would be expected  based on the level of interest rates and
         the S&P 500 Index.  This  difference will reflect a "time premium" due
         to  expectations  concerning the value of the S&P 500 Index during the
         period prior to maturity of the MITTS Securities. However, as the time
         remaining  to maturity of the MITTS  Securities  decreases,  we expect
         that this time premium will  decrease,  lowering the trading  value of
         the MITTS Securities.

    o    Dividend  Yields If dividend  yields on the stocks included in the S&P
         500 Index increase,  we expect that the value of the MITTS  Securities
         will decrease.  Conversely,  if dividend yields on the stocks included
         in the S&P 500 Index  decrease,  we expect that the value of the MITTS
         Securities will increase.

    o    Changes in our credit ratings. Our credit ratings are an assessment of
         our ability to pay our obligations.  Consequently, real or anticipated
         changes in our credit  ratings  may  affect the  trading  value of the
         MITTS  Securities.   However,   because  your  return  on  your  MITTS
         Securities is dependent upon factors in addition to our ability to pay
         our  obligations  under the MITTS  Securities,  such as the percentage
         increase in the value of the S&P 500 Index at maturity, an improvement
         in our credit ratings will not reduce  investment risks related to the
         MITTS Securities.

         We want  you to  understand  that  the  impact  of one of the  factors
specified above,  such as an increase in interest rates, may offset some or all
of any increase in the trading value of the MITTS  Securities  attributable  to
another factor, such as an increase in the S&P 500 Index value.

         In general, assuming all relevant factors are held constant, we expect
that the effect on the trading value of the MITTS  Securities of a given change
in most of the factors listed above will be less if it occurs later in the term
of the  MITTS  Securities  than if it occurs  earlier  in the term of the MITTS
Securities.  However,  we expect  that the effect on the  trading  value of the
MITTS  Securities of a given  increase in the value of the S&P 500 Index or the
CPI will be greater if it occurs later in the term of the MITTS Securities than
if it occurs earlier in the term of the MITTS Securities.

AMOUNTS PAYABLE ON THE MITTS SECURITIES MAY BE LIMITED BY STATE LAW

         New York  State  laws  govern  the  indenture  under  which  the MITTS
Securities  were  issued.  New York has  usury  laws that  limit the  amount of
interest that can be charged and paid on loans,  which includes debt securities
like the MITTS  Securities.  Under  present New York law,  the maximum  rate of
interest is 25% per annum on a simple interest basis.  This limit may not apply
to debt securities in which $2,500,000 or more has been invested.

         While we believe that New York law would be given effect by a state or
Federal  court  sitting  outside of New York,  many other states also have laws
that  regulate  the  amount of  interest  that may be  charged to and paid by a
borrower.  We will promise, for the benefit of the MITTS Securities holders, to
the extent permitted by law, not to voluntarily  claim the benefits of any laws
concerning usurious rates of interest.
    

PURCHASES AND SALES BY MERRILL LYNCH

   
         We and our  other  affiliates  may  from  time to time buy or sell the
stocks underlying the S&P 500 Index for their own accounts for business reasons
or in connection with hedging ML&Co.'s  obligations under the MITTS Securities.
These  transactions could affect the price of those stocks and the value of the
S&P 500 Index.

POTENTIAL CONFLICTS OF INTERESTS

         The  calculation  agent is a subsidiary  of ML&Co.,  the issuer of the
MITTS  Securities.  In come  circumstances,  MLPF&S'  roles as a subsidiary  of
ML&Co. and its  responsibilities  as calculation agent for the MITTS Securities
could give rise to conflicts of interests. You should be aware that because the
calculation  agent is  controlled  by ML&Co.,  potential  conflicts of interest
could  arise;  however,  the  calculation  agent is  subject  to limits and has
certain  duties.  For example,  in the case of the CPI, the  calculation  agent
could  only  adjust  a  value  of the CPI to  undo a  change  to how the CPI is
calculated or select a successor measure for inflation to maintain the intended
economic  benefits of the MITTS  Securities to you if the CPI is  discontinued.
The calculation  agent could not otherwise adjust a value of the CPI or replace
the CPI with another measure of inflation.
    

OTHER CONSIDERATIONS

   
         You should also  consider  the tax  consequences  of  investing in the
MITTS Securities and should consult your tax advisor.


                           MERRILL LYNCH & CO., INC.

         We  are  a  holding  company  that,  through  our  U.S.  and  non-U.S.
subsidiaries  and  affiliates  such as Merrill  Lynch,  Pierce,  Fenner & Smith
Incorporated,  Merrill Lynch Government  Securities Inc., Merrill Lynch Capital
Services, Inc., Merrill Lynch International, Merrill Lynch Capital Markets Bank
Ltd.,  Merrill  Lynch Asset  Management  L.P. and Merrill  Lynch  Mercury Asset
Management,  provides investment,  financing,  advisory, insurance, and related
products on a global basis, including:

    o    securities brokerage, trading and underwriting;

    o    investment  banking,   strategic   services,   including  mergers  and
         acquisitions and other corporate finance advisory activities;

    o    asset  management  and other  investment  advisory  and  recordkeeping
         services;

    o    trading and brokerage of swaps, options,  forwards,  futures and other
         derivatives;

    o    securities clearance services;

    o    equity, debt and economic research;

    o    banking,  trust and lending services,  including  mortgage lending and
         related services; and

    o    insurance sales and underwriting services.

         We provide  these  products  and  services to a wide array of clients,
including individual investors,  small businesses,  corporations,  governments,
governmental agencies and financial institutions.

         Our principal  executive office is located at World Financial  Center,
North Tower,  250 Vesey Street,  New York, New York 10281; our telephone number
is (212) 449-1000.

         If you want to find more information about us, please see the sections
entitled  "Where  You  Can  Find  More   Information"  and   "Incorporation  of
Information We File with the SEC" in this prospectus.

         In this prospectus,  "ML&Co.", "we", "us" and "our" refer specifically
to Merrill Lynch & Co., Inc., the holding company.  ML&Co. is the issuer of the
MITTS Securities described in this prospectus.
    



<PAGE>



   
                       RATIO OF EARNINGS TO FIXED CHARGES

         In 1998, we acquired the outstanding  shares of Midland Walwyn,  Inc.,
in a  transaction  accounted  for  as  a  pooling-of-interests.  The  following
information  for the fiscal years 1994 through 1997 has been restated as if the
two entities had always been combined.

         The following  table sets forth our  historical  ratios of earnings to
fixed charges for the periods indicated:



<TABLE>
<CAPTION>
                                                     Year Ended Last Friday in December
<S>                                              <C>      <C>      <C>      <C>       <C> 
                                                 1994     1995     1996     1997      1998
                                                 -----------------------------------------
Ratio of earnings to fixed charges(a).........   1.2      1.2      1.2      1.2      1.1
- ----------
(a)      The  effect of  combining  Midland  Walwyn  did not  change the ratios
         reported for the fiscal years 1994
 </TABLE>

         For the purpose of calculating  the ratio of earnings to fixed charges,
"earnings"  consist of earnings from continuing  operations  before income taxes
and  fixed  charges,  excluding  capitalized  interest  and  preferred  security
dividend  requirements.  "Fixed charges" consist of interest costs, the interest
factor in rentals,  amortization  of debt  issuance  costs,  preferred  security
dividend requirements of subsidiaries, and capitalized interest.
    



<PAGE>





   
                      DESCRIPTION OF THE MITTS SECURITIES

         On September 24, 1997, ML&Co.  issued $16,500,000  aggregate principal
amount of S&P 500 MITTS Securities due September 24, 2007. The MITTS Securities
were  issued as a series of senior  debt  securities  under the 1983  Indenture
which is more fully described in this prospectus.

         The MITTS Securities will mature on September 24, 2007.

         While at maturity a beneficial  owner of a MITTS Security will receive
the principal amount of the MITTS Security, as adjusted,  plus the Supplemental
Redemption  Amount  described  below, if any, there will be no other payment of
interest, periodic or otherwise. See "- Payment at Maturity" below.

         The MITTS Securities are not subject to redemption by ML&Co. or at the
option of any beneficial owner before maturity. Upon the occurrence of an Event
of Default with respect to the MITTS Securities, beneficial owners of the MITTS
Securities may accelerate  the maturity of the MITTS  Securities,  as described
under "- Events of  Default  and  Acceleration"  and  "Other  Terms - Events of
Default" in this prospectus.

         The MITTS Securities were issued in denominations of whole units.
    

PAYMENT AT MATURITY

   
         At the maturity  date, a beneficial  owner of a MITTS Security will be
entitled  to  receive  the  Adjusted  Principal  Amount  of each  unit plus the
Supplemental  Redemption  Amount,  if any, all as provided below. If the Ending
Index Value does not exceed the Benchmark Index Value, a beneficial  owner of a
MITTS  Security  will be entitled to receive only the  principal  amount of its
MITTS Securities.
    

Determination of the Adjusted Principal Amount

   
         The  "Adjusted   Principal  Amount"  for  a  MITTS  Security  will  be
determined by the calculation agent, and will equal the greater of:

    (a)  the principal amount of the MITTS Security ($10 for each unit); and

    (b)  the principal amount of the MITTS Security X  Final CPI
                                                      -----------
                                                      Initial CPI

         "Initial  CPI"  equals  160.3,  the  value  of the CPI  for the  third
calendar month prior to the month containing the Pricing Date.

         "Final  CPI" shall be  determined  by the  calculation  agent and will
equal the value of the CPI for the third  calendar month prior to September 24,
2007 as reported on the seventh calendar day prior to the maturity date.

         "CPI" means the  non-seasonally  adjusted  U.S. City Average All Items
Consumer Price Index for All Urban Consumers,  published  monthly by the Bureau
of Labor Statistics of the Department of Labor (the "BLS").

         If a  previously  reported  CPI value is  revised by the BLS after the
Final  CPI is  determined,  the  calculation  agent  will  continue  to use the
previously reported CPI value in calculating the Adjusted Principal Amount.

         If the CPI is rebased to a different year, the calculation  agent will
continue  to use the CPI  based on the base  reference  period in effect on the
Pricing Date for those purposes, as long as the CPI continues to be published.
    

DETERMINATION OF THE SUPPLEMENTAL REDEMPTION AMOUNT

   
         The  "Supplemental  Redemption  Amount" for a MITTS  Security  will be
determined by the calculation agent and will equal:

<TABLE>
<S>                                                   <C> <C>
Principal Amount of the MITTS Security ($10 per unit)  X   Ending Index Value--Benchmark Index Value
                                                           -----------------------------------------
    
                                                                      Benchmark Index Value
</TABLE>

   
provided,  however, that in no event will the Supplemental Redemption Amount be
less than zero or more than $10 per unit.  As indicated  in the formula  above,
the calculation agent will calculate the Supplemental Redemption Amount for the
MITTS Securities using the principal  amount of the MITTS  Securities,  not the
Adjusted  Principal  Amount which may be greater if the CPI has increased  over
the term of the MITTS Securities.

         The "Benchmark Index Value" equals 1089.38.  The Benchmark Index Value
was determined on the Pricing Date by multiplying the Starting Index Value by a
factor equal to 115%.

         The "Ending Index Value" will be determined by the  calculation  agent
and will equal the average or arithmetic  mean of the closing values of the S&P
500 Index (the "Index")  determined on each of the first five  Calculation Days
during the Calculation  Period.  If there are fewer than five Calculation Days,
then the Ending  Index Value will equal the average or  arithmetic  mean of the
closing  values of the Index on these  Calculation  Days.  If there is only one
Calculation  Day,  then the Ending Index Value will equal the closing  value of
the Index on that  Calculation  Day. If no  Calculation  Days occur  during the
Calculation Period because of Market Disruption  Events,  then the Ending Index
Value  will  equal  the  closing  value  of the  Index  determined  on the last
scheduled  Index  Business Day in the  Calculation  Period,  regardless  of the
occurrences of a Market Disruption Event on that day.
    

         The  "Calculation  Period"  means the period  from and  including  the
seventh  scheduled  Index  Business  Day  prior  to the  maturity  date  to and
including the second scheduled Index Business Day prior to the maturity date.

         "Calculation  Day" means any Index Business Day during the Calculation
Period on which a Market Disruption Event has not occurred.

   
         For purposes of determining the Ending Index Value, an "Index Business
Day" is a day on which the NYSE and the  American  Stock  Exchange are open for
trading and the Index or any Successor  Index,  as defined below on page 12, is
calculated and published.

         All determinations  made by the calculation agent shall be at the sole
discretion  of  the  calculation  agent  and,  absent  a  determination  by the
calculation agent of a manifest error, shall be conclusive for all purposes and
binding on ML&Co. and beneficial owners of the MITTS Securities.
    



<PAGE>


HYPOTHETICAL RETURNS

   
         The following  table provides the amount payable to beneficial  owners
of MITTS Securities  related to the pretax  annualized rates of return given in
the table on the following page for a range of hypothetical annualized rates of
change in the CPI and  percentage  changes in the Index from the Starting Index
Value to the Ending Index Value.
    

<TABLE>
<CAPTION>
                                                  ANNUALIZED RATE OF CHANGE IN CPI 
         PERCENTAGE CHANGE IN INDEX  ---------------------------------------------------------- 
         FROM  STARTING INDEX VALUE  -3.00%  -1.00%  0.00%  1.00%   3.00%   5.00%  7.00%  9.00%
         --------------------------  ------  ------  -----  -----   -----   -----  -      -----
<S>                                   <C>     <C>    <C>    <C>     <C>     <C>    <C>    <C>  
         -50.00%.....................$ 10.00 $ 10.00$ 10.00 $ 11.05 $ 13.44 $ 16.29$      $ 23.67
                                                                                    19.67
         -30.00%.....................  10.00   10.00  10.00   11.05   13.44   16.29 19.67   23.67
         -10.00%.....................  10.00   10.00  10.00   11.05   13.44   16.29 19.67   23.67
         0.00%.......................  10.00   10.00  10.00   11.05   13.44   16.29 19.67   23.67
         10.00%......................  10.00   10.00  10.00   11.05   13.44   16.29 19.67   23.67
         30.00%......................  11.30   11.30  11.30   12.35   14.74   17.59 20.98   24.98
         50.00%......................  13.04   13.04  13.04   14.09   16.48   19.33 22.71   26.72
         70.00%......................  14.78   14.78  14.78   15.83   18.22   21.07 24.45   28.46
         90.00%......................  16.52   16.52  16.52   17.57   19.96   22.81 26.19   30.20
         110.00%.....................  18.26   18.26  18.26   19.31   21.70   24.55 27.93   31.93
         130.00%.....................  20.00   20.00  20.00   21.05   23.44   26.29 29.67   33.67
         150.00%.....................  20.00   20.00  20.00   21.05   23.44   26.29 29.67   33.67
         170.00%.....................  20.00   20.00  20.00   21.05   23.44   26.29 29.67   33.67
         190.00%.....................  20.00   20.00  20.00   21.05   23.44   26.29 29.67   33.67

</TABLE>


   
         The following  table provides the pretax  annualized rate of return to
beneficial  owners  of  the  MITTS  Securities  for  a  range  of  hypothetical
annualized rates of change in the CPI and percentage  changes in the Index from
the Starting Index Value to the Ending Index Value. The far right column of the
table  provides the pretax  annualized  rate of return of an  investment in the
stocks underlying the Index, which includes an assumed aggregate dividend yield
of 1.60% per annum, as more fully described below.
    

<TABLE>
<CAPTION>
                                          ANNUALIZED RATE OF CHANGE IN CPI (1)               
         PERCENTAGE CHANGE --------------------------------------------------------------------   PRETAX ANNUALIZED
             IN INDEX                                                                             RATE OF RETURN OF
           FROM STARTING                                                                          STOCKS UNDERLYING
            INDEX VALUE    -3.00%    -1.00%   0.00%    1.00%   3.00%    5.00%   7.00%     9.00% THE INDEX (2)
            -----------    ------    ------   -----    -----   -----    -----   -----           -------------
<S>     <C>                  <C>       <C>     <C>      <C>     <C>      <C>    <C>      <C>             <C>

         -50.00%..........    0.00%     0.00%   0.00%    1.00%   2.98%    4.94%   6.88%    8.81%          -5.24%
         -30.00%..........    0.00%     0.00%   0.00%    1.00%   2.98%    4.94%   6.88%    8.81%          -1.95%
         -10.00%..........    0.00%     0.00%   0.00%    1.00%   2.98%    4.94%   6.88%    8.81%           0.55%
         0.00%............    0.00%     0.00%   0.00%    1.00%   2.98%    4.94%   6.88%    8.81%           1.60%
         10.00%...........    0.00%     0.00%   0.00%    1.00%   2.98%    4.94%   6.88%    8.81%           2.56%
         30.00%...........    1.23%     1.23%   1.23%    2.12%   3.92%    5.73%   7.55%    9.37%           4.25%
         50.00%...........    2.67%     2.67%   2.67%    3.46%   5.06%    6.70%   8.38%   10.07%           5.71%
         70.00%...........    3.95%     3.95%   3.95%    4.65%   6.09%    7.59%   9.15%   10.74%           7.00%
         90.00%...........    5.08%     5.08%   5.08%    5.72%   7.03%    8.42%   9.86%   11.36%           8.15%
         110.00%..........    6.11%     6.11%   6.11%    6.69%   7.90%    9.19%  10.54%   11.95%           9.20%
         130.00%..........    7.05%     7.05%   7.05%    7.58%   8.70%    9.90%  11.18%   12.52%          10.15%
         150.00%..........    7.05%     7.05%   7.05%    7.58%   8.70%    9.90%  11.18%   12.52%          11.02%
         170.00%..........    7.05%     7.05%   7.05%    7.58%   8.70%    9.90%  11.18%   12.52%          11.84%
         190.00%..........    7.05%     7.05%   7.05%    7.58%   8.70%    9.90%  11.18%   12.52%          12.60%

</TABLE>

(1)  The  annualized  rates of  return  specified  in the  preceding  table are
     calculated on a semiannual bond equivalent basis.
   
(2) This rate of return assumes:
    (a)  an  investment  of a fixed amount in the stocks  underlying  the Index
         with the  allocation of that amount  reflecting  the current  relative
         weights of the stocks in the Index;
    (b)  a percentage  change in the aggregate  price of the stocks that equals
         the  percentage  change in the Index from the Starting  Index Value to
         the relevant hypothetical Ending Index Value;
    (c)  a constant  dividend yield of 1.60% per annum, paid quarterly from the
         date of initial delivery of MITTS Securities,  applied to the value of
         the Index at the end of each quarter  assuming the value  increases or
         decreases  linearly  from the Starting  Index Value to the  applicable
         hypothetical Ending Index Value;
    (d)  no transaction fees or expenses;
    (e)  a term for the MITTS  Securities  from September 24, 1997 to September
         24, 2007; and
    (f)  a final Index value equal to the Ending  Index  Value.  The  aggregate
         dividend yield of the stocks included in the Index as of September 18,
         1997 was approximately 1.60%.

         As you can see from the tables, if you assume a 3% per annum change in
the CPI during the term of the MITTS Securities and a 70% increase in the Index
from the  Starting  Index  Value to the Ending  Index  Value,  $18.22  would be
payable at the maturity of the MITTS Securities and the pretax  annualized rate
of  return  to  beneficial  owners  of the  MITTS  Securities  calculated  on a
semi-annual  bond  equivalent  basis  would  be  6.09%.  Given a  fixed  annual
percentage change in the CPI, any increase in the value of the Index above 230%
of the  Starting  Index  Value,  a  percentage  increase  in the Index from the
Starting Index Value of 130%,  will not increase the pretax  annualized rate of
return on the MITTS Securities.

         The above figures are for purposes of  illustration  only.  The actual
Supplemental  Redemption  Amount  received by investors and the resulting total
and pretax  annualized rate of return will depend entirely on the actual Ending
Index  Value  determined  by  the  calculation   agent  as  described  in  this
prospectus.
    

ADJUSTMENTS TO THE CPI

   
         If at any time the method of  calculating  the CPI,  or its value , is
changed in any material respect,  or if the CPI is in any other way modified so
that  the CPI  does  not,  in the  opinion  of the  calculation  agent,  fairly
represent the value of the CPI had the changes or modifications  not been made,
then  the  calculation  agent  shall  make  any  adjustments  for  purposes  of
determining  the Final CPI as, in the good faith  judgment  of the  calculation
agent,  may be necessary in order to arrive at a  calculation  of a value of an
inflation index  comparable to the CPI as if changes or  modifications  had not
been made.

         If the CPI is discontinued while the MITTS Securities are outstanding,
the  calculation  agent  shall  determine  an  alternative  index  that  in the
calculation  agent's sole  discretion is comparable to the CPI (the  "Successor
CPI"). Upon the calculation  agent's  notification of this determination to the
trustee and ML&Co., the calculation agent will substitute the Successor CPI for
the CPI. The  calculation  agent may make any  adjustments to the values of the
Successor CPI in order to maintain the intended economic benefits to ML&Co. and
the holders of the MITTS  Securities.  Upon any  selection  by the  calculation
agent of a Successor CPI, ML&Co.  shall cause notice to be given to the Holders
of the MITTS Securities.
    

ADJUSTMENTS TO THE INDEX; MARKET DISRUPTION EVENTS

   
         If at any time the method of calculating  the Index, or its value , is
changed in any material  respect,  or if the Index is in any other way modified
so that the Index does not, in the  opinion of the  calculation  agent,  fairly
represent  the value of the Index had those changes or  modifications  not been
made, then, from and after that time, the calculation agent shall, at the close
of business  in New York,  New York,  on each date that the closing  value with
respect to the Ending Index Value is to be calculated, make any adjustments as,
in the good faith judgment of the calculation  agent, may be necessary in order
to arrive at a calculation of a value of a stock index  comparable to the Index
as if the changes or modifications had not been made, and calculate the closing
value with reference to the Index, as adjusted.  Accordingly,  if the method of
calculating  the Index is modified so that the value of the Index is a fraction
or a  multiple  of what it would  have  been if it had not been  modified,  for
example,  due to a split in the Index,  then the calculation agent shall adjust
the  Index  in order to  arrive  at a value of the  Index as if it had not been
modified, for example, as if the split had not occurred.

         "Market  Disruption  Event" means either of the following  events,  as
determined by the calculation agent:

         (a) the  suspension  or material  limitation  on trading for more
than two hours of trading in 100 or more of the securities  included in the S&P
500 Index, or

         (b) the suspension or material limitation, in each case, for more
than two hours of trading,  whether by reason of movements  in price  otherwise
exceeding levels permitted by the relevant exchange or otherwise, in
    

         (1)  futures  contracts  related to the Index  which are traded on the
              Chicago Mercantile Exchange or

   
         (2)  option  contracts  related  to the Index  which are traded on the
              Chicago Board Options Exchange, Inc.

         A  limitation  on the hours in a trading day and/or  number of days of
trading  will not  constitute a Market  Disruption  Event if it results from an
announced change in the regular business hours of the relevant exchange.

         For the  purposes  of clause (a)  above,  any  limitations  on trading
during significant market  fluctuations under New York Stock Exchange Rule 80A,
or any applicable rule or regulation  enacted or promulgated by the NYSE or any
other self regulatory organization or the SEC of similar scope as determined by
the calculation agent, will be considered "material".
    

DISCONTINUANCE OF THE INDEX

   
         If S&P discontinues publication of the Index and S&P or another entity
publishes  a  successor  or  substitute   index  that  the  calculation   agent
determines,  in  its  sole  discretion,  to be  comparable  to the  Index  (any
successor or  substitute  index is referred to as a "Successor  Index"),  then,
upon the calculation  agent's  notification of the determination to the trustee
and ML&Co.,  the  calculation  agent will  substitute  the  Successor  Index as
calculated by S&P or any other entity for the Index . Upon any selection by the
calculation agent of a Successor Index,  ML&Co.  shall cause notice to be given
to holders of the MITTS Securities.

         If S&P discontinues  publication of the Index and a Successor Index is
not selected by the calculation  agent or is no longer  published on any of the
Calculation Days, the value to be substituted for the Index for any Calculation
Day used to calculate the Supplemental  Redemption Amount at maturity will be a
value computed by the calculation  agent for each Calculation Day in accordance
with the procedures last used to calculate the Index before the discontinuance.
If a Successor Index is selected or the calculation agent calculates a value as
a substitute  for the Index as described  below,  the Successor  Index or value
shall be substituted for the Index for all purposes,  including for purposes of
determining whether a Market Disruption Event exists.

         If S&P discontinues  publication of the Index before the period during
which  the  Supplemental   Redemption  Amount  is  to  be  determined  and  the
calculation agent determines that no Successor Index is available at that time,
then on each Business Day until the earlier to occur of:
    

    o    the determination of the Ending Index Value and

   
    o    a  determination  by the  calculation  agent that a Successor Index is
         available,

the calculation agent shall determine the value that would be used in computing
the Supplemental  Redemption Amount as described in the preceding  paragraph as
if that day were a Calculation Day. The calculation  agent will cause notice of
each  value to be  published  not less  often  than once each month in The Wall
Street Journal,  or another newspaper of general  circulation,  and arrange for
information with respect to the values to be made available by telephone.

         Despite  these   alternative   arrangements,   discontinuance  of  the
publication of the Index may adversely affect trading in the MITTS Securities.
    



<PAGE>


EVENTS OF DEFAULT AND ACCELERATION

   
         In case an Event of Default with respect to any MITTS  Securities  has
occurred and is continuing, the amount payable to a beneficial owner of a MITTS
Security upon any acceleration permitted by the MITTS Securities,  with respect
to each $10 principal amount per unit, will be equal to the Adjusted  Principal
Amount and the Supplemental Redemption Amount, if any, calculated as though the
date of early repayment were the stated maturity date of the MITTS  Securities.
See "- Payment at Maturity" in this prospectus.  If a bankruptcy  proceeding is
commenced in respect of ML&Co.,  the claim of the  beneficial  owner of a MITTS
Security  may be limited,  under  Section  502(b)(2)  of Title 11 of the United
States Code,  to the  principal  amount per unit of the MITTS  Security plus an
additional amount of contingent  interest  calculated as though the date of the
commencement of the proceeding were the maturity date of the MITTS Securities.

         In case of default in payment of the MITTS Securities,  whether at the
stated  maturity or upon  acceleration,  from and after the  maturity  date the
MITTS  Securities  shall bear  interest,  payable upon demand of the beneficial
owners  thereof,  at the rate of 6.58% per annum, to the extent that payment of
any interest shall be legally enforceable, on the unpaid amount due and payable
on that date in accordance  with the terms of the MITTS  Securities to the date
payment of any amount has been made or duly provided for.

 GLOBAL SECURITIES

          DESCRIPTION OF THE GLOBAL SECURITIES  

         Beneficial  owners of the MITTS  Securities  may not receive  physical
delivery  of the MITTS  Securities  nor may they be  entitled to have the MITTS
Securities  registered  in their  names.  The MITTS  Securities  currently  are
represented  by one or more fully  registered  global  securities.  Each global
security was deposited  with, or on behalf of, The Depository  Trust Company or
DTC (DTC,  together  with any  successor  thereto,  being a  "depositary"),  as
depositary,  registered in the name of Cede & Co. (DTC's partnership  nominee).
Unless and until it is  exchanged in whole or in part for MITTS  Securities  in
definitive form, no global security may be transferred except as a whole by the
depositary to a nominee of the  depositary or by a nominee of the depositary to
the depositary or another nominee of the depositary or by the depositary or any
nominee to a successor of the depositary or a nominee of that successor.

         So long as DTC,  or its  nominee,  is a  registered  owner of a global
security,  DTC or its nominee,  as the case may be, will be considered the sole
owner or Holder of the MITTS  Securities  represented by a global  security for
all purposes under the 1983 Indenture. Except as provided below, the beneficial
owners of the MITTS  Securities  represented  by a global  security will not be
entitled  to have the  MITTS  Securities  represented  by the  global  security
registered in their names,  will not receive or be entitled to receive physical
delivery of the MITTS  Securities in definitive form and will not be considered
the owners or Holders  under the 1983  Indenture,  including  for  purposes  of
receiving  any  reports  delivered  by  ML&Co.  or the  trustee  under the 1983
Indenture.  Accordingly,  each person owning a beneficial  interest in a global
security  must  rely on the  procedures  of DTC and,  if that  person  is not a
participant  of DTC on the  procedures  of the  participant  through which that
person owns its  interest,  to exercise  any rights of a Holder  under the 1983
Indenture.  ML&Co.  understands that under existing industry practices,  in the
event  that  ML&Co.  requests  any  action  of  Holders  or that an  owner of a
beneficial  interest  in a global  security  desires to give or take any action
which a Holder is entitled to give or take under the 1983 Indenture,  DTC would
authorize the participants holding the relevant beneficial interests to give or
take any action, and the participants would authorize  beneficial owners owning
through those  participants  to give or take action or would otherwise act upon
the  instructions  of  beneficial  owners.  Conveyance  of  notices  and  other
communications by DTC to participants, by participants to indirect participants
and by  participants  and indirect  participants  to beneficial  owners will be
governed by  arrangements  among them,  subject to any  statutory or regulatory
requirements as may be in effect from time to time.
    



<PAGE>


   
          DTC PROCEDURES
    

         The following is based on information furnished by DTC:

   
         DTC is the securities  depositary for the MITTS Securities.  The MITTS
Securities were issued as fully registered securities registered in the name of
Cede & Co., DTC's  partnership  nominee.  One or more fully  registered  global
securities  were issued for the MITTS  Securities  in the  aggregate  principal
amount of the MITTS Securities, and were deposited with DTC.

         DTC is a  limited-purpose  trust company  organized under the New York
Banking  Law,  a  "banking  organization"  within  the  meaning of the New York
Banking Law, a member of the Federal Reserve System,  a "clearing  corporation"
within the meaning of the New York  Uniform  Commercial  Code,  and a "clearing
agency" registered under to the provisions of Section 17A of the Securities and
Exchange Act of 1934, as amended.  DTC holds  securities that its  participants
deposit with DTC. DTC also  facilitates  the settlement  among  participants of
securities transactions, such as transfers and pledges, in deposited securities
through electronic  computerized  book-entry changes in participants' accounts,
thereby eliminating the need for physical movement of securities  certificates.
Direct participants of DTC include securities brokers and dealers, banks, trust
companies,  clearing  corporations and other  organizations.  DTC is owned by a
number of its direct  participants  and by the NYSE,  the AMEX and the National
Association  of  Securities  Dealers,  Inc.  Access to the DTC's system is also
available to others such as  securities  brokers and  dealers,  banks and trust
companies that clear through or maintain a custodial relationship with a direct
participant, either directly or indirectly. The rules applicable to DTC and its
participants are on file with the SEC.

         Purchases  of MITTS  Securities  under DTC's system must be made by or
through  direct  participants,  which  will  receive  a  credit  for the  MITTS
Securities on DTC's records. The ownership interest of each beneficial owner is
in turn to be  recorded  on the  records of direct and  indirect  participants.
Beneficial  owners  will not  receive  written  confirmation  from DTC of their
purchase,  but beneficial owners are expected to receive written  confirmations
providing details of the transaction,  as well as periodic  statements of their
holdings,  from the direct participants or indirect  participants through which
the  beneficial  owner  entered  into the  transaction.  Transfers of ownership
interests in the MITTS Securities are to be accomplished by entries made on the
books of participants acting on behalf of beneficial owners.

         To facilitate  subsequent  transfers,  all MITTS Securities  deposited
with DTC are registered in the name of DTC's  partnership  nominee,  Cede & Co.
The deposit of MITTS Securities with DTC and their  registration in the name of
Cede & Co.  effect no change in beneficial  ownership.  DTC has no knowledge of
the actual  beneficial  owners of the MITTS  Securities;  DTC's records reflect
only the  identity  of the  direct  participants  to whose  accounts  the MITTS
Securities  are credited,  which may or may not be the beneficial  owners.  The
participants  will remain  responsible for keeping account of their holdings on
behalf of their customers.

         Conveyance  of  notices  and  other  communications  by DTC to  direct
participants,  by direct participants to indirect  participants,  and by direct
and indirect participants to beneficial owners will be governed by arrangements
among them,  subject to any statutory or regulatory  requirements  as may be in
effect from time to time.

         Neither  DTC nor Cede & Co. will  consent or vote with  respect to the
MITTS  Securities.  Under its usual  procedures,  DTC mails an omnibus proxy to
ML&Co. as soon as possible after the applicable  record date. The omnibus proxy
assigns Cede & Co.'s  consenting or voting rights to those direct  participants
identified  in a listing  attached to the omnibus  proxy to whose  accounts the
MITTS  Securities  are  credited  on the record  date  identified  in a listing
attached to the omnibus proxy.

         Principal,  premium, if any, and/or interest,  if any, payments on the
MITTS  Securities  will be made in  immediately  available  funds to DTC. DTC's
practice is to credit direct  participants'  accounts on the applicable payment
date in accordance  with their  respective  holdings shown on the  depositary's
records  unless DTC has reason to believe  that it will not receive  payment on
that date.  Payments by participants  to beneficial  owners will be governed by
standing  instructions and customary practices,  as is the case with securities
held for the  accounts of  customers  in bearer form or  registered  in "street
name",  and will be the  responsibility  of the participant and not of DTC, the
trustee or ML&Co.,  subject to any statutory or regulatory  requirements as may
be in effect from time to time. Payment of principal,  premium,  if any, and/or
interest,  if any,  to DTC is the  responsibility  of  ML&Co.  or the  trustee,
disbursement of payments to direct  participants is the  responsibility of DTC,
and disbursement of payments to the beneficial owners is the  responsibility of
direct and indirect participants.

          EXCHANGE FOR CERTIFICATED SECURITIES

          If:

    o    the  depositary  is at any time  unwilling  or unable to  continue  as
         depositary  and a  successor  depositary  is not  appointed  by ML&Co.
         within 60 days,

    o    ML&Co.  executes  and  delivers to the trustee a company  order to the
         effect that the global securities shall be exchangeable, or

    o    an Event of  Default  under the 1983  Indenture  has  occurred  and is
         continuing with respect to the MITTS Securities,

the global  securities will be exchangeable  for MITTS Securities in definitive
form of like tenor and of an equal aggregate principal amount, in denominations
of $10 and integral  multiples of $10. The definitive  MITTS Securities will be
registered in the name or names as the  depositary  shall instruct the trustee.
It is expected that  instructions may be based upon directions  received by the
depositary from participants with respect to ownership of beneficial  interests
in the global securities.

         In addition,  ML&Co.  may decide to  discontinue  use of the system of
book-entry transfers through the depositary. In that event, MITTS Securities in
definitive form will be printed and delivered.

         The  information  in this section  concerning DTC and DTC's system has
been  obtained  from  sources that ML&Co.  believes to be reliable,  but ML&Co.
takes no responsibility for its accuracy .
    

SAME-DAY SETTLEMENT AND PAYMENT

   
         ML&Co.  will  make all  payments  of  principal  and the  Supplemental
Redemption Amount, if any, in immediately  available funds so long as the MITTS
Securities are maintained in book-entry form.
    


                                   THE INDEX

   
         All  disclosures  contained in this  prospectus  regarding  the Index,
including its make-up, method of calculation and changes in its components, are
derived from  publicly  available  information  prepared by S&P as of March 22,
1999.  ML&Co. and MLPF&S do not assume any  responsibility  for the accuracy or
completeness of this information.

         The  Index  is  published  by  S&P,  and is  intended  to  provide  an
indication of the pattern of common stock price  movement.  The  calculation of
the value of the  Index,  discussed  below in further  detail,  is based on the
relative  value of the  aggregate  Market  Value of the  common  stocks  of 500
companies as of a particular  time  compared to the  aggregate  average  Market
Value of the common stocks of 500 similar  companies  during the base period of
the years 1941 through 1943. As of March 22, 1999 the 500 companies included in
the  Index  represented  approximately  78% of the  aggregate  Market  Value of
common stocks traded on the NYSE; however,  these 500 companies are not the 500
largest  companies  listed on the NYSE and not all of these 500  companies  are
listed on the exchange.  As of March 22,  1999,  the aggregate  Market Value of
the 500 companies  included in the Index  represented  approximately 79% of the
aggregate Market Value of United States domestic, public companies. S&P chooses
companies for  inclusion in the Index with the aim of achieving a  distribution
by  broad  industry  groupings  that  approximates  the  distribution  of these
groupings  in the common  stock  population  of the NYSE,  which S&P uses as an
assumed  model for the  composition  of the  total  market.  Relevant  criteria
employed by S&P include:
    

    o    the viability of the particular company,

    o    the extent to which that  company  represents  the  industry  group to
         which it is assigned,

   
    o    the extent to which the market price of that company's common stock is
         generally  responsive  to  changes in the  affairs  of the  respective
         industry, and
    

    o    the Market  Value and  trading  activity  of the common  stock of that
         company.

   
         Four main groups of companies  comprise the Index,  with the number of
companies   currently   included  in  each  group   indicated  in  parentheses:
Industrials (380), Utilities (39),  Transportation (10) and Financial (71). S&P
may from time to time,  in its sole  discretion,  add  companies  to, or delete
companies from, the Index to achieve the objectives stated above.

         The Index does not  reflect  the  payment of  dividends  on the stocks
underlying  it. The return based on the MITTS  Securities  will not be the same
return you would receive if you were to purchase  these  underlying  stocks and
hold them for a period equal to the maturity of the MITTS Securities.
    

COMPUTATION OF THE INDEX

         S&P currently computes the Index as of a particular time as follows:

   
                  (a) the product of the market  price per share and the number
         of then outstanding  shares of each component stock is determined at a
         particular time (the "Market Value" of the stock);

                  (b) the Market Value of all  component  stock as of that time
         are aggregated;

                  (c) the mean average of the Market  Values as of each week in
         the base period of the years 1941  through 1943 of the common stock of
         each  company in a group of 500  substantially  similar  companies  is
         determined;

                  (d) the mean average Market Values of all these common stocks
         over the base period are aggregated  (the  aggregate  amount being the
         "Base Value");

                  (e) the  current  aggregate  Market  Value  of all  component
         stocks is divided by the Base Value; and

                  (f)  the  resulting  quotient,   expressed  in  decimals,  is
         multiplied by ten.

         While S&P  currently  employs the above  methodology  to calculate the
Index,  no  assurance  can be given  that S&P will not  modify or  change  this
methodology in a manner that may affect the Supplemental  Redemption Amount, if
any,  payable  to  beneficial  owners  of MITTS  Securities  upon  maturity  or
otherwise.

         S&P adjusts the foregoing  formula to negate the effects of changes in
the Market Value of component stocks that are determined by S&P to be arbitrary
or not due to true market fluctuations. Changes may result from such causes as
    

    o    the issuance of stock dividends,

   
    o    the granting to shareholders of rights to purchase  additional  shares
         of stock,

    o    the  purchase of shares by  employees  pursuant  to  employee  benefit
         plans,

    o    consolidations and acquisitions,

    o    the granting to shareholders of rights to purchase other securities of
         ML&Co.,
    

    o    the  substitution by S&P of particular  component stocks in the Index,
         and

    o    other reasons.

   
In these  cases,  S&P first  recalculates  the  aggregate  Market  Value of all
component stocks, after taking account of the new market price per share of the
particular  component stock or the new number of outstanding  shares thereof or
both, and then  determines the New Base Value in accordance  with the following
formula:


      Old Base Value  X       New Market Value     = New Base Value
                             -----------------
                             Old Market Value
                                       
         The result is that the Base Value is  adjusted  in  proportion  to any
change in the aggregate Market Value of all component stocks resulting from the
causes referred to above to the extent necessary to negate the effects of these
causes upon the Index.

HISTORICAL DATA ON THE INDEX

         The  following  table  sets forth the value of the Index at the end of
each month,  in the period from  January  1990  through  February  1999.  These
historical  data on the  Index are not  necessarily  indicative  of the  future
performance of the Index or what the value of the MITTS  Securities may be. Any
historical upward or downward trend in the value of the Index during any period
set forth below is not any indication  that the Index is more or less likely to
increase or decrease at any time during the term of the MITTS Securities.

<TABLE>
<CAPTION>
                  1990      1991      1992     1993      1994      1995      1996      1997     1998       1999
<S>              <C>       <C>       <C>      <C>       <C>       <C>       <C>       <C>      <C>       <C>     
January.......   329.08    343.93    408.78   438.78    481.61    470.42    636.02    786.16   980.28    1,279.64
February......   331.89    367.07    412.70   443.38    467.14    487.39    640.43    790.82  1,049.34   1,238.33
March.........   339.94    375.22    403.69   451.67    445.77    500.71    645.50    757.12  1,101.75
April.........   330.80    375.34    414.95   440.19    450.91    514.71    654.17    801.34  1,111.75
May...........   361.23    389.83    415.35   450.19    456.51    533.40    669.12    848.28  1,090.82
June..........   358.02    371.16    408.14   450.53    444.27    544.75    670.63    885.14  1,133.84
July..........   356.15    387.81    424.22   448.13    458.26    562.06    639.95    954.29  1,120.67
August........   322.56    395.43    414.03   463.56    475.50    561.88    651.99    899.47   957.28
September.....   306.05    387.86    417.80   458.93    462.71    584.41    687.31    947.28  1,017.01
October.......   304.00    392.45    418.68   467.83    472.35    581.50    705.27    914.62  1,098.67
November......   322.22    375.22    431.35   461.79    453.69    605.37    757.02    955.40  1,163.63
December......   330.22    417.09    435.71   466.45    459.27    615.93    740.74    970.43  1,229.23
</TABLE>
    

LICENSE AGREEMENT

   
         S&P and Merrill  Lynch  Capital  Services,  Inc.  have  entered into a
non-exclusive  license  agreement  providing  for the license to Merrill  Lynch
Capital  Services,  Inc.,  in  exchange  for a fee, of the right to use indices
owned and published by S&P in connection with particular securities,  including
the Securities, and ML&Co. is an authorized sublicensee thereof.

         The license  agreement between S&P and Merrill Lynch Capital Services,
Inc. provides that the following language must be stated in this prospectus:

                  "The MITTS  Securities are not sponsored,  endorsed,  sold or
         promoted by S&P. S&P makes no representation  or warranty,  express or
         implied,  to the Holders of the MITTS  Securities or any member of the
         public regarding the advisability of investing in securities generally
         or in the MITTS Securities particularly or the ability of the Index to
         track general stock market  performance.  S&P's only  relationship  to
         Merrill  Lynch  Capital   Services,   Inc.  and  ML&Co.   (other  than
         transactions  entered into in the ordinary  course of business) is the
         licensing  of certain  servicemarks  and trade names of S&P and of the
         Index which is  determined,  composed  and  calculated  by S&P without
         regard to ML&Co.  or the MITTS  Securities.  S&P has no  obligation to
         take the needs of ML&Co.  or the Holders of the MITTS  Securities into
         consideration in determining,  composing or calculating the Index. S&P
         is not responsible for and has not  participated in the  determination
         of the timing of the sale of the MITTS Securities, prices at which the
         MITTS  Securities are to initially be sold, or quantities of the MITTS
         Securities to be issued or in the  determination or calculation of the
         equation by which the MITTS  Securities are to be converted into cash.
         S&P  has  no   obligation   or  liability  in   connection   with  the
         administration, marketing or trading of the MITTS Securities."


                              CONSUMER PRICE INDEX

         The Consumer Price Index or CPI, is a measure of the average change in
consumer  prices  over time for a fixed  market  basket of goods and  services,
including food, clothing, shelter, fuels,  transportation,  charges for doctors
and dentists services, and drugs. In calculating the CPI, price changes for the
various  items  are  averaged   together  with  weights  that  represent  their
importance  in the  spending  of urban  households  in the United  States.  The
contents of the market basket of goods and services and the weights assigned to
the various  items are  updated  periodically  by the BLS to take into  account
changes in consumer expenditure patterns.

         All  disclosure  contained  in  this  prospectus  regarding  the  CPI,
including,  without  limitation,  its  composition,  method of calculation  and
changes in its  components,  is derived  from  publicly  available  information
prepared by the United States  Government.  Neither ML&Co.  nor the underwriter
takes any responsibility for the accuracy or completeness of this information.
    

         The CPI is  expressed  in  relative  terms in  relation to a time base
reference period for which the level is set at 100. For example, if the CPI for
the  1982-1984  reference  period is 100, an increase of 16.5 percent from that
period  would  result in a CPI value equal to 116.5.  The CPI for a  particular
month is released and published during the following month.  From time to time,
the CPI is rebased to a more recent base reference  period.  The base reference
period for these Notes is the 1982-1984 average which is equal to 100.

   
         Historical  data on the CPI is available  from the U.S.  Department  of
Labor's  Bureau of Labor  Statistics,  Washington,  D.C.  20212 or accessing the
Bureau of Labor Statistics' web site located at http://www.bls.gov.


    


                                  OTHER TERMS

   
         ML&Co.  issued  the  MITTS  Securities  as a  series  of  senior  debt
securities under the 1983 Indenture,  dated as of April 1, 1983, as amended and
restated,  between ML&Co.  and The Chase Manhattan Bank, as trustee.  A copy of
the 1983  Indenture  is  filed  as an  exhibit  to the  registration  statement
relating  to the MITTS  Securities  of which  this  prospectus  is a part.  The
following  summaries of the material  provisions of the 1983  Indenture are not
complete and are subject to, and  qualified in their  entirety by reference to,
all provisions of the 1983 Indenture, including the definitions of terms in the
1983 Indenture.

         ML&Co.  may issue series of senior debt  securities  from time to time
under the 1983 Indenture,  without limitation as to aggregate principal amount,
in one or more  series  and upon  terms  as  ML&Co.  may  establish  under  the
provisions of the 1983 Indenture.

         The 1983  Indenture  and the  MITTS  Securities  are  governed  by and
construed in accordance with the laws of the State of New York.

         ML&Co.  may issue senior debt  securities  with terms  different  from
those of senior debt securities  previously issued, and issue additional senior
debt securities of a previously issued series of senior debt securities.

         The senior debt  securities  are  unsecured  and rank equally with all
other  unsecured and  unsubordinated  indebtedness of ML&Co.  However,  because
ML&Co. is a holding company, the rights of ML&Co. and its creditors,  including
the holders of senior debt  securities,  to participate in any  distribution of
the  assets  of any  subsidiary  upon  its  liquidation  or  reorganization  or
otherwise  are  necessarily  subject to the prior  claims of  creditors  of the
subsidiary,  except to the extent that a bankruptcy  court may recognize claims
of ML&Co.  itself as a creditor of the  subsidiary  . In  addition,  dividends,
loans and advances from certain  subsidiaries,  including MLPF&S, to ML&Co. are
restricted by net capital  requirements under the Exchange Act, and under rules
of exchanges and other regulatory bodies.
    

LIMITATIONS UPON LIENS

   
         ML&Co. may not, and may not permit any  majority-owned  subsidiary to,
create,  assume,  incur or permit to exist any  indebtedness for borrowed money
secured  by a  pledge,  lien or  other  encumbrance,  other  than  those  liens
specifically  permitted  by the  1983  Indenture,  on the  Voting  Stock  owned
directly or indirectly by ML&Co. of any majority-owned subsidiary, other than a
majority-owned  subsidiary  which, at the time of the incurrence of the secured
indebtedness,  has a net worth of less than $3,000,000,  unless the outstanding
senior  debt  securities  are  secured  equally  and  ratably  with the secured
indebtedness.

         "Voting  Stock" is defined in the 1983  Indenture  as the stock of the
class or classes having general  voting power under ordinary  circumstances  to
elect at least a majority of the board of directors,  managers or trustees of a
corporation  provided that, for the purposes of the 1983 Indenture,  stock that
carries only the right to vote  conditionally  on the occurrence of an event is
not considered voting stock whether or not the event has happened.
    

LIMITATION ON DISPOSITION OF VOTING STOCK OF, AND MERGER AND SALE OF ASSETS
BY, MLPF&S

   
         ML&Co. may not sell, transfer or otherwise dispose of any Voting Stock
of MLPF&S or permit  MLPF&S to issue,  sell or otherwise  dispose of any of its
Voting  Stock,  unless,  after giving  effect to any such  transaction,  MLPF&S
remains a Controlled Subsidiary.

         "Controlled  Subsidiary"  is defined in the 1983  Indenture  to mean a
corporation  more than 80% of the  outstanding  shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

         In addition,  ML&Co. may not permit MLPF&S to:

    o    merge or  consolidate,  unless the  surviving  company is a Controlled
         Subsidiary, or
    

    o    convey or  transfer  its  properties  and assets  substantially  as an
         entirety, except to one or more Controlled Subsidiaries.

MERGER AND CONSOLIDATION

   
          ML&Co. may consolidate or merge with or into any other corporation and
ML&Co. may sell,  lease or convey all or substantially  all of its assets to any
corporation, provided that:

    o    the  resulting  corporation,  if other than ML&Co.,  is a  corporation
         organized and existing  under the laws of the United States of America
         or any U.S. state and assumes all of ML&Co.'s obligations to:

         o    pay any amounts due and payable or  deliverable  with  respect to
              all the senior debt securities; and

         o    perform and observe  all of ML&Co.'s  obligations  under the 1983
              Indenture, and

    o    ML&Co.  or the  successor  corporation,  as the case  may be,  is not,
         immediately  after any  consolidation or merger,  in default under the
         1983 Indenture.
    

MODIFICATION AND WAIVER

   
         ML&Co.  and the trustee may modify and amend the 1983  Indenture  with
the  consent  of  holders  of at  least  66 2/3% in  principal  amount  of each
outstanding  series of senior debt securities  affected.  However,  without the
consent of each holder of any  outstanding  senior debt security  affected,  no
amendment or modification to the 1983 Indenture may:

    o    change  the  stated   maturity  date  of  the  principal  of,  or  any
         installment of interest or Additional  Amounts  payable on, any senior
         debt  security or any premium  payable on  redemption  , or change the
         redemption price;

    o    reduce the principal amount of, or the interest or Additional  Amounts
         payable on, any senior debt security or reduce the amount of principal
         which could be declared  due and  payable  before the stated  maturity
         date;

    o    change  the place or  currency  of any  payment  of  principal  or any
         premium,  interest or  Additional  Amounts  payable on any senior debt
         security;

    o    impair the right to institute suit for the  enforcement of any payment
         on or with respect to any senior debt security;

    o    reduce the percentage in principal  amount of the  outstanding  senior
         debt  securities  of any  series,  the  consent  of whose  holders  is
         required to modify or amend the 1983 Indenture; or

    o    modify  the  foregoing   requirements  or  reduce  the  percentage  of
         outstanding senior debt securities necessary to waive any past default
         to less than a majority.

         No modification or amendment of ML&Co.'s Subordinated Indenture or any
Subsequent  Indenture for subordinated debt securities may adversely affect the
rights of any holder of  ML&Co.'s  senior  indebtedness  without the consent of
each holder affected. The holders of at least a majority in principal amount of
outstanding  senior debt  securities  of any series may,  with  respect to that
series,  waive past defaults under the 1983  Indenture and waive  compliance by
ML&Co.  with  provisions  in the 1983  Indenture,  except  as  described  under
"--Events of Default".

 EVENTS OF DEFAULT

         Each of the following will be Events of Default with respect to senior
debt securities of any series:

    o    default in the payment of any interest or Additional  Amounts  payable
         when due and continuing for 30 days;

    o    default in the payment of any principal or premium when due;

    o    default in the deposit of any sinking fund payment, when due;

    o    default in the performance of any other obligation of ML&Co. contained
         in the 1983  Indenture for the benefit of that series or in the senior
         debt  securities of that series,  continuing for 60 days after written
         notice as provided in the 1983 Indenture;

    o    specified  events  in  bankruptcy,  insolvency  or  reorganization  of
         ML&Co.; and

    o    any other  Event of  Default  provided  with  respect  to senior  debt
         securities  of that series  which are not  inconsistent  with the 1983
         Indenture.

         If an Event of  Default  occurs  and is  continuing  for any series of
senior debt securities, other than as a result of the bankruptcy, insolvency or
reorganization  of  ML&Co.,  the  trustee  or the  holders  of at least  25% in
principal  amount of the outstanding  senior debt securities of that series may
declare  all  amounts,  or any lesser  amount  provided  for in the senior debt
securities,  due and payable or  deliverable  immediately.  At any time after a
declaration  of  acceleration  has  been  made  with  respect  to  senior  debt
securities  of any series but before the  trustee  has  obtained a judgment  or
decree for payment of money , the holders of a majority in principal  amount of
the  outstanding  senior  debt  securities  of  that  series  may  rescind  any
declaration of acceleration  and its  consequences,  if all payments due, other
than  those due as a result of  acceleration,  have been made and all Events of
Default have been remedied or waived.

         The holders of a majority in principal amount or aggregate issue price
of the outstanding senior debt securities of that series may waive any Event of
Default with respect to that series, except a default:

    o    in the payment of any amounts due and payable or deliverable under the
         debt securities of that series; or

    o    in respect of an obligation or provision of the 1983  Indenture  which
         cannot  be  modified  under the terms of that  Indenture  without  the
         consent of each holder of each outstanding  security of each series of
         senior debt securities affected.

         The  holders  of a majority  in  principal  amount of the  outstanding
senior  debt  securities  of a series may direct the time,  method and place of
conducting any proceeding for any remedy available to the trustee or exercising
any trust or power  conferred  on the trustee with respect to those senior debt
securities,  provided that any direction shall not be in conflict with any rule
of law or the 1983 Indenture.  Before proceeding to exercise any right or power
under the 1983 Indenture at the direction of the holders,  the trustee shall be
entitled to receive  from the holders  reasonable  security or  indemnification
against the costs,  expenses and  liabilities  which might be incurred by it in
complying with any direction.

         The MITTS Securities and other series of senior debt securities issued
under  the  1983  Indenture  do not  have  the  benefit  of  any  cross-default
provisions with other indebtedness of ML&Co.

         ML&Co.  is required to furnish to the trustee  annually a statement as
to  the  fulfillment  by  ML&Co.  of  all of its  obligations  under  the  1983
Indenture.
    



<PAGE>





   
                           PROJECTED PAYMENT SCHEDULE

         Solely  for  purposes  of  applying  the  final  Treasury   Department
Regulations  (the "Final  Regulations")  concerning  the United States  Federal
income tax  treatment  of  contingent  payment  debt  instruments  to the MITTS
Securities,  ML&Co. has determined that the projected  payment schedule for the
MITTS  Securities  will consist of payment on the maturity  date of a projected
amount equal to $19.0973 per unit.  This  represents an estimated  yield on the
MITTS Securities equal to 6.58% per annum (compounded semiannually).

         The  projected   payment   schedule   (including  both  the  projected
Redemption  Amount and the estimated  yield on the MITTS  Securities)  has been
determined  solely for United States  Federal  income tax purposes  (i.e.,  for
purposes of applying the Final  Regulations  to the MITTS  Securities),  and is
neither a  prediction  nor a  guarantee  of what  either  the  actual  Adjusted
Principal Amount or the actual Supplemental  Redemption Amount will be, or that
either the actual Adjusted  Principal Amount will exceed $10 or that the actual
Supplemental Redemption Amount will even exceed zero.

         The  following  table sets forth the amount of  interest  that will be
deemed to have accrued with respect to each unit of the MITTS Securities during
each  accrual  period over a term of ten years for the MITTS  Securities  based
upon a projected payment schedule for the MITTS Securities  (including both the
projected Supplemental Redemption Amount and the estimated yield equal to 6.58%
per annum  (compounded  semiannually))  as determined by ML&Co. for purposes of
application of the Final Regulations to the MITTS Securities:
    

<TABLE>
<CAPTION>
                                                                                     TOTAL INTEREST
                                                           INTEREST DEEMED             DEEMED TO
                                                                 TO                 HAVE ACCRUED ON
                                                            ACCRUE DURING           SECURITIES AS OF
                                                               ACCRUAL                    END
   
                                                           PERIOD (PER             F ACCRUAL PERIOD
                      ACCRUAL PERIOD                            UNIT)              O  (PER  UNIT)
    
<S>                                  <C>                   <C>                     <C>          
September 24, 1997 through March 23, 1998................ $      0.3244            $      0.3244
March 24, 1998 through September 23, 1998................ $      0.3415            $      0.6659
September 24, 1998 through March 23, 1999................ $      0.3490            $      1.0149
March 24, 1999 through September 23, 1999................ $      0.3624            $      1.3773
September 24, 1999 through March 23, 2000................ $      0.3743            $      1.7516
March 24, 2000 through September 23, 2000................ $      0.3867            $      2.1383
September 24, 2000 through March 23, 2001................ $      0.3993            $      2.5376
March 24, 2001 through September 23, 2001................ $      0.4125            $      2.9501
September 24, 2001 through March 23, 2002................ $      0.4261            $      3.3762
March 24, 2002 through September 23, 2002................ $      0.4401            $      3.8163
September 24, 2002 through March 23, 2003................ $      0.4545            $      4.2708
March 24, 2003 through September 23, 2003................ $      0.4695            $      4.7403
September 24, 2003 through March 23, 2004................ $      0.4850            $      5.2253
March 24, 2004 through September 23, 2004................ $      0.5009            $      5.7262
September 24, 2004 through March 23, 2005................ $      0.5174            $      6.2436
March 24, 2005 through September 23, 2005................ $      0.5344            $      6.7780
September 24, 2005 through March 23, 2006................ $      0.5520            $      7.3300
March 24, 2006 through September 23, 2006................ $      0.5701            $      7.9001
September 24, 2006 through March 23, 2007................ $      0.5890            $      8.4891
March 24, 2007 through September 24, 2007................ $      0.6082            $      9.0973
</TABLE>
- -------------
   
Projected Redemption Amount = $19.0973 per unit.

         All prospective investors in the MITTS Securities should consult their
own tax advisors  concerning the application of the Final  Regulations to their
investment in the MITTS Securities.  Investors in the MITTS Securities may also
obtain the projected payment schedule,  as determined by ML&Co. for purposes of
the application of the Final Regulations to the MITTS Securities, by submitting
a written  request for the  information  to Merrill  Lynch & Co.,  Inc.,  Attn:
Darryl W. Colletti,  Corporate  Secretary's  Office,  100 Church  Street,  12th
Floor, New York, New York 10080-6512.


                      WHERE YOU CAN FIND MORE INFORMATION

         We file reports,  proxy statements and other information with the SEC.
Our SEC filings are also  available  over the Internet at the SEC's web site at
http://www.sec.gov. You may also read and copy any document we file by visiting
the SEC's public  reference rooms in Washington,  D.C., New York, New York, and
Chicago,   Illinois.   Please  call  the  SEC  at  1-800-SEC-0330  for  further
information  about the public  reference  rooms.  You may also  inspect our SEC
reports and other  information at the New York Stock  Exchange,  Inc., 20 Broad
Street, New York, New York 10005.

         We have  filed a  registration  statement  on Form  S-3  with  the SEC
covering the MITTS Securities and other securities.  For further information on
ML&Co. and the MITTS Securities, you should refer to our registration statement
and its exhibits.  This prospectus  summarizes material provisions of contracts
and  other  documents  that we refer you to.  Because  the  prospectus  may not
contain all the information that you may find important,  you should review the
full text of these  documents.  We have included  copies of these  documents as
exhibits to our registration statement of which this prospectus is a part.


               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

         The SEC allows us to incorporate by reference the  information we file
with them, which means:

    o    incorporated documents are considered part of the prospectus;

    o    we can disclose important information to you by referring you to those
         documents; and

    o    information  that we file with the SEC will  automatically  update and
         supersede this incorporated information.

         We  incorporate  by reference  the  documents  listed below which were
filed with the SEC under the Exchange Act:

    o    annual report on Form 10-K for the year ended December 25, 1998; and

    o    current reports on Form 8-K dated December 28, 1998, January 19, 1999,
         February 17, 1999,  February 18, 1999, February 22, 1999, February 23,
         1999 and March 26, 1999.

         We also incorporate by reference each of the following  documents that
we will file with the SEC after the date of this prospectus until this offering
is  completed  or after the date of this  initial  registration  statement  and
before the effectiveness of the registration statement:

    o    reports filed under Sections 13(a) and (c) of the Exchange Act;

    o    definitive  proxy or information  statements filed under Section 14 of
         the  Exchange  Act in  connection  with any  subsequent  stockholders'
         meeting; and

    o    any reports filed under Section 15(d) of the Exchange Act.

         You should  rely only on  information  contained  or  incorporated  by
reference in this prospectus.  We have not, and MLPF&S has not,  authorized any
other person to provide you with different information.  If anyone provides you
with different or inconsistent  information,  you should not rely on it. We are
not,  and  MLPF&S  is not,  making  an offer to sell  these  securities  in any
jurisdiction where the offer or sale is not permitted.

         You should assume that the information appearing in this prospectus is
accurate  as of the  date of this  prospectus  only.  Our  business,  financial
condition and results of operations may have changed since that date.

         You may  request a copy of any filings  referred  to above  (excluding
exhibits),  at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan,  Jr.,  Corporate  Secretary's  Office,  Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.


                              PLAN OF DISTRIBUTION

         This  prospectus has been prepared in connection  with secondary sales
of the MITTS  Securities  and is to be used by MLPF&S  when  making  offers and
sales related to market-making transactions in the MITTS Securities.

         MLPF&S  may  act  as  principal   or  agent  in  these   market-making
transactions.

         The MITTS Securities may be offered on the NYSE or off the exchange in
negotiated transactions or otherwise.

         The   distribution  of  the  MITTS  Securities  will  conform  to  the
requirements  set forth in the applicable  sections of Rule 2720 of the Conduct
Rules of the NASD.
    


                                    EXPERTS

   
         The  consolidated   financial  statements  and  the  related  financial
statement schedule  incorporated in this prospectus by reference from the Annual
Report on Form 10-K of Merrill  Lynch & Co.,  Inc.  and  subsidiaries  have been
audited  by  Deloitte & Touche  LLP,  independent  auditors,  as stated in their
reports  (which  express  an  unqualified   opinion  and  which  report  on  the
consolidated  financial  statements  includes an  explanatory  paragraph for the
change in  accounting  method  for  certain  internal-use  software  development
costs),   which  are  incorporated  herein  by  reference,   and  have  been  so
incorporated  in  reliance  upon the  reports  of such  firm  given  upon  their
authority as experts in accounting and auditing.



         
    

<PAGE>
   
The information in this  prospectus is not complete and may be changed.  We may
not sell  these  securities  until the  registration  statement  filed with the
Securities  and Exchange  Commission  is effective.  This  prospectus is not an
offer to sell these  securities  and it is not soliciting an offer to buy these
securities in any state where the offer or sale is not permitted.
    

                             Subject to Completion
   
                  Preliminary Prospectus dated March 29, 1999
    


P R O S P E C T U S


   
                           MERRILL LYNCH & CO., INC.
    
 MAJOR 8 EUROPEAN INDEX MARKET INDEX TARGET-TERM SECURITIES DUE AUGUST 30, 2002
   
                             "MITTS(R) SECURITIES"
                         $10 PRINCIPAL AMOUNT PER UNIT

         This  prospectus is to be used by Merrill Lynch & Co.,  Merrill Lynch,
Pierce, Fenner & Smith Incorporated,  our wholly-owned subsidiary,  when making
offers and sales related to market-making transactions in the MITTS Securities.
    

<PAGE>


   
The MITTS Securities:                   Payment at Maturity:                  
o   100%   principal   protection  at   o   On the  maturity  date,  for each 
    maturity                                unit of the MITTS  Securities you 
o   No payments before maturity             own,  we will  pay you an  amount 
o   Linked  to the value of the Major       equal to the sum of the principal 
    8   European   Index   o   Senior       amount   of  each   unit  and  an 
    unsecured   debt   securities  of       additional  amount  based  on the 
    Merrill Lynch & Co., Inc.               product    of   the    percentage 
o   The MITTS  Securities  are listed       increase, if any, in the value of 
    on the  American  Stock  Exchange       the  Major 8  European  Index and 
    under the trading symbol "MEM"          115%   as   described   in   this 
                                            prospectus                        
                                        o   You will receive no less than the 
                                            principal  amount  of your  MITTS 
                                            Securities                        
                                        

<PAGE>




   
               INVESTING IN THE MITTS SECURITIES INVOLVES RISKS.
                    SEE "RISK FACTORS" BEGINNING ON PAGE 3.
    

         Neither  the  Securities   and  Exchange   Commission  nor  any  state
securities  commission  has  approved or  disapproved  of these  securities  or
determined if this prospectus is truthful or complete.  Any  representation  to
the contrary is a criminal offense.

   
         The sale price of the MITTS  Securities will be the prevailing  market
price at the time of sale.
    


                              MERRILL LYNCH & CO.


                      The date of this prospectus is , 199.
   
"MITTS" and "Market Index Target-Term  Securities" are registered service marks
owned by Merrill Lynch & Co., Inc.
    




<PAGE>


   
                               TABLE OF CONTENTS


RISK FACTORS..................................................................3

MERRILL LYNCH & CO., INC......................................................7

RATIO OF EARNINGS TO FIXED CHARGES............................................8

DESCRIPTION OF THE MITTS SECURITIES...........................................9

THE INDEX....................................................................16

OTHER TERMS..................................................................19

PROJECTED PAYMENT SCHEDULE...................................................22

WHERE YOU CAN FIND MORE INFORMATION..........................................24
    

INCORPORATION OF INFORMATION WE FILE WITH THE SEC............................24

   
PLAN OF DISTRIBUTION.........................................................25

EXPERTS......................................................................25
    


<PAGE>


                                  RISK FACTORS

   
         Your  investment in MITTS  Securities  will involve risks.  You should
carefully consider the following discussion of risks before deciding whether an
investment in the MITTS Securities is suitable for you.

YOU MAY NOT EARN A RETURN ON YOUR INVESTMENT.

         You  should be aware that we will pay you no more than $10 per unit of
the  MITTS  Securities  you own if the  average  value of the  index  over five
trading  days shortly  before the maturity is less than 100.  This will be true
even if at some time during the life of the MITTS Securities,  the value of the
index, as adjusted, was higher than 100 but later falls below 100 .
    

YOUR  YIELD  MAY BE  LOWER  THAN THE  YIELD  ON A  STANDARD  DEBT  SECURITY  OF
COMPARABLE MATURITY.

   
         The  amount we pay you at  maturity  may be less than the  return  you
could  earn on other  investments.  Your  yield  may be less than the yield you
would  earn if you bought a  standard  senior  non-callable  debt  security  of
Merrill Lynch & Co., Inc with the same maturity date.  Your  investment may not
reflect  the full  opportunity  cost to you when you  consider  the  effect  of
factors that affect the time value of money.

YOUR RETURN  WILL NOT  REFLECT THE RETURN OF OWNING THE STOCKS  INCLUDED IN THE
INDEX.

         Your  return  will not  reflect  the return  you would  realize if you
actually owned the stocks  underlying the index and received the dividends paid
on those stocks. This is because,  except as described below in the immediately
succeeding paragraph,  the value of the index is calculated by reference to the
prices  of  the  common  stocks  included  in the  index  without  taking  into
consideration the value of dividends paid on those stocks.
    

Your return will not reflect the payment of dividends.

   
         The  index is  calculated  with  reference  to the  sub-indices  which
reflect the prices of the common  stocks  comprising  the  sub-indices  without
taking into  consideration the value of dividends paid on those stocks,  except
in the case of the Deutscher  Aktienindex  sub-index  which reflects  dividends
paid on its  underlying  common stocks.  Therefore,  the return you earn on the
MITTS  Securities,  if any,  will not be the same as the return  that you would
earn if you actually owned each of the common stocks  underlying each sub-index
and received the dividends paid on those stocks.

 YOUR RETURN WILL BE AFFECTED BY CHANGES IN CURRENCY EXCHANGE RATES.

         Although  the  stocks  included  in  the  sub-indices  are  traded  in
currencies  other than U.S. dollars and the MITTS Securities are denominated in
U.S.  dollars,  we will not adjust any amounts payable on the MITTS  Securities
for currency  exchange rates in effect at the maturity of the MITTS Securities.
Any amount in addition to the  principal  amount of each unit payable to you at
maturity is based solely upon the percentage increase in the index.  Changes in
exchange rates, however, may reflect changes in the relevant European economies
that may affect the value of the sub-indices, and the MITTS Securities.

 CHANGES IN EUROPEAN SECURITIES MARKETS WILL AFFECT YOUR RETURN.

         Companies listed on European  exchanges  issued the underlying  stocks
that  constitute  the  sub-indices.  You  should be aware that  investments  in
securities  indexed  to the value of the  European  equity  securities  involve
certain risks. The European  securities  markets may be more volatile than U.S.
or other securities markets and market developments may affect these markets in
different  ways than  U.S.  or other  securities  markets.  Direct or  indirect
government  intervention to stabilize a particular  European  securities market
and  cross-shareholdings  in  European  companies  on these  markets may affect
prices and volume of trading on those  markets.  Also,  there is generally less
publicly  available  information about European companies than about those U.S.
companies  that  are  subject  to the  reporting  requirements  of the  SEC and
European companies are subject to accounting,  auditing and financial reporting
standards and requirements that differ from those applicable to U.S.  reporting
companies.

         Political, economic, financial and social factors in Europe may affect
securities  prices in Europe.  These factors,  including the  possibility  that
recent or future  changes  in a European  country's  government,  economic  and
fiscal policies,  the possible  imposition of, or changes in, currency exchange
laws  or  other  laws or  restrictions  applicable  to  European  companies  or
investments in European  equity  securities and the possibility of fluctuations
in the  rate of  exchange  between  currencies,  could  negatively  affect  the
European  securities  markets.  Moreover,  the relevant European  economies may
differ  favorably or  unfavorably  from the U.S.  economy in areas of growth of
gross national product, rate of inflation, capital reinvestment,  resources and
self-sufficiency.

THERE  MAY BE AN  UNCERTAIN  TRADING  MARKET  FOR THE MITTS  SECURITIES  IN THE
FUTURE.

         Although the MITTS  Securities are listed on the NYSE under the symbol
"MEM," you cannot  assume that a trading  market will continue to exist for the
MITTS  Securities.  If a trading  market in the MITTS  Securities  continues to
exist,  you cannot  assume that there will be liquidity in the trading  market.
The  continued  existence  of a trading  market for the MITTS  Securities  will
depend on our financial performance and other factors such as the appreciation,
if any, of the value of the index.

         If a limited trading market for the MITTS Securities  exists,  and you
do not wish to hold your investment  until  maturity,  fewer buyers may want to
purchase  your MITTS  Securities.  This may affect the price you receive if you
sell before maturity.

THERE ARE MANY FACTORS AFFECTING THE TRADING VALUE OF THE MITTS SECURITIES.

         We  believe  that by the  value of the  index  and a  number  of other
factors will affect the trading  value of the MITTS  Securities.  Some of these
factors  interrelate in complex ways; as a result, the effect of any one factor
may offset or  magnify  the effect of another  factor.  The  following  bullets
describe the expected impact on the trading value of the MITTS Securities given
a change in a specific factor, assuming all other conditions remain constant.

    o    The value of the index.  We expect that the market  value of the MITTS
         Securities will depend  substantially on the amount by which the value
         of the index exceeds 100. If you choose to sell your MITTS  Securities
         when the value of the index exceeds 100 you may receive  substantially
         less than the amount that would be payable at  maturity  based on that
         index value because of the expectation that the index will continue to
         fluctuate until the ending index value is determined. If you choose to
         sell your MITTS  Securities  when the value of the index is below 100,
         you may receive less than the $10  principal  amount per unit of MITTS
         Securities.  In general, rising dividend rates, or dividends per share
         in the European  countries related to the common stocks underlying the
         sub-indices,  each an "applicable European country",  may increase the
         value of the index  while  falling  dividend  rates in the  applicable
         European  countries  may decrease  the value of the index.  Political,
         economic and other  developments that affect the stocks underlying the
         index  may also  affect  the  value of the  index and the value of the
         MITTS Securities.

    o    Interest  rates.  Because  we will pay,  at a minimum,  the  principal
         amount per unit of the MITTS  Securities  at maturity,  we expect that
         changes in interest  rates will affect the trading  value of the MITTS
         Securities.  In general,  if U.S.  interest rates increase,  we expect
         that the trading  value of the MITTS  Securities  will  decrease  and,
         conversely,  if U.S.  interest rates  decrease,  we expect the trading
         value of the MITTS Securities will increase.  In general,  if interest
         rates in the applicable  European countries  increase,  we expect that
         the trading value of the MITTS  Securities will increase.  If interest
         rates in the applicable  European  countries  decrease,  we expect the
         trading value of the MITTS Securities will decrease. However, interest
         rates  in the  applicable  European  countries  may  also  affect  the
         relevant  economies  and,  in turn,  the  value of the  index.  Rising
         interest  rates in the  applicable  European  countries  may lower the
         value of the index and the MITTS Securities. Falling interest rates in
         the applicable  European countries may increase the value of the index
         and the value of the MITTS Securities.

    o    Volatility  of the index.  Volatility is the term used to describe the
         size and frequency of market  fluctuations.  If the  volatility of the
         index  increases,  we  expect  that the  trading  value  of the  MITTS
         Securities will increase. If the volatility of the index decreases, we
         expect that the trading value of the MITTS Securities will decrease.

    o    Time remaining to maturity.  We anticipate  that prior to the maturity
         of the MITTS  Securities,  the MITTS  Securities  may trade at a value
         above  that which  would be  expected  based on the level of  interest
         rates and the index. This difference will reflect a "time premium" due
         to  expectations  concerning  the value of the index during the period
         prior  to  maturity  of the  MITTS  Securities.  However,  as the time
         remaining  to maturity of the MITTS  Securities  decreases,  we expect
         that this time premium will  decrease,  lowering the trading  value of
         the MITTS Securities.

    o    Dividend yields. If dividend yields on the stocks comprising the index
         increase,  we  expect  that the  value of the  MITTS  Securities  will
         decrease.  Conversely, if dividend yields on the stocks comprising the
         index decrease,  we expect that the value of the MITTS Securities will
         increase.

    o    Changes in our credit ratings. Our credit ratings are an assessment of
         our ability to pay our obligations.  Consequently, real or anticipated
         changes in our credit  ratings  may  affect the  trading  value of the
         MITTS  Securities.   However,   because  your  return  on  your  MITTS
         Securities is dependent upon factors in addition to our ability to pay
         our  obligations  under the MITTS  Securities,  such as the percentage
         increase in the value of the index at maturity,  an improvement in our
         credit ratings will not reduce  investment  risks related to the MITTS
         Securities.

         We want  you to  understand  that  the  impact  of one of the  factors
specified above,  such as an increase in interest rates, may offset some or all
of any change in the  trading  value of the MITTS  Securities  attributable  to
another factor, such as an increase in the index value.

         In general, assuming all relevant factors are held constant, we expect
that the effect on the trading value of the MITTS  Securities of a given change
in most of the factors listed above will be less if it occurs later in the term
of the  MITTS  Securities  than if it occurs  earlier  in the term of the MITTS
Securities  except that we expect  that the effect on the trading  value of the
MITTS  Securities of a given increase in the value of the index will be greater
if it  occurs  later  in the term of the  MITTS  Securities  than if it  occurs
earlier in the term of the MITTS Securities.

AMOUNTS PAYABLE ON THE MITTS SECURITIES MAY BE LIMITED BY STATE LAW

         New York  State  laws  govern  the  indenture  under  which  the MITTS
Securities  are  issued.  New York has  usury  laws that  limit  the  amount of
interest that can be charged and paid on loans,  which includes debt securities
like the MITTS  Securities.  Under  present New York law,  the maximum  rate of
interest is 25% per annum on a simple interest basis.  This limit may not apply
to debt securities in which $2,500,000 or more has been invested.

         While we believe that New York law would be given effect by a state or
Federal  court  sitting  outside of New York,  many other states also have laws
that  regulate the amount of interest  chargeable to and payable by a borrower.
We will promise, for the benefit of the MITTS Securities holders, to the extent
permitted by law, not to voluntarily  claim the benefits of any laws concerning
usurious rates of interest.

 PURCHASES AND SALES BY  US AND OUR AFFILIATES MAY AFFECT YOUR RETURN.

         We and our  affiliates  may from  time to time buy or sell the  stocks
underlying the index for our own accounts for business reasons or in connection
with hedging our obligations  under the MITTS  Securities.  These  transactions
could  affect the price of these  stocks and the value of the index in a manner
that would be adverse to your investment in the MITTS Securities.

 POTENTIAL CONFLICTS OF INTEREST.

         Our subsidiary,  Merrill Lynch, Pierce, Fenner & Smith Incorporated or
MLPF&S, is our agent for the purposes of calculating the value of the index and
the amount payable to you at maturity. In some circumstances,  MLPF&S's role as
our subsidiary  and its  responsibilities  as  calculation  agent for the MITTS
Securities  could give rise to conflicts of interests.  These  conflicts  could
occur,  for instance,  in connection with its  determination  as to whether the
value of the  index  can be  calculated  on a  particular  trading  day,  or in
connection  with  judgments that it would be required to make in the event of a
discontinuance    of   the    index.    See    "Description    of   the   MITTS
Securities--Adjustments   to  the  Index;   Market   Disruption   Events"   and
"--Discontinuance of the Index" in this prospectus. MLPF&S is required to carry
out its  duties as  calculation  agent in good  faith and using its  reasonable
judgment.  However,  you  should  be aware  that  because  we  control  MLPF&S,
potential conflicts of interest could arise.

         We have entered into an arrangement  with one of our a subsidiaries to
hedge the market risks  associated  with our  obligation  to pay amounts due at
maturity on the MITTS Securities.  This subsidiary  expects to make a profit in
connection with this  arrangement.  We did not seek  competitive  bids for this
arrangement from unaffiliated parties.
    

OTHER CONSIDERATIONS.

   
         It is suggested  that you should  reach an  investment  decision  with
regard to the MITTS Securities only after carefully considering the suitability
of the MITTS Securities in the light of your particular circumstances.

         You should also  consider  the tax  consequences  of  investing in the
MITTS Securities and should consult your tax adviser.
    



<PAGE>


   
                           MERRILL LYNCH & CO., INC.

         We  are  a  holding  company  that,  through  our  U.S.  and  non-U.S.
subsidiaries  and  affiliates  such as Merrill  Lynch,  Pierce,  Fenner & Smith
Incorporated,  Merrill Lynch Government  Securities Inc., Merrill Lynch Capital
Services, Inc., Merrill Lynch International, Merrill Lynch Capital Markets Bank
Ltd.,  Merrill  Lynch Asset  Management  L.P. and Merrill  Lynch  Mercury Asset
Management,  provides investment,  financing,  advisory, insurance, and related
products on a global
basis, including:

    o    securities brokerage, trading and underwriting;

    o    investment  banking,   strategic   services,   including  mergers  and
         acquisitions and other corporate finance advisory activities;

    o    asset  management  and other  investment  advisory  and  recordkeeping
         services;

    o    trading and brokerage of swaps, options,  forwards,  futures and other
         derivatives;

    o    securities clearance services;

    o    equity, debt and economic research;

    o    banking,  trust and lending services,  including  mortgage lending and
         related services; and

    o    insurance sales and underwriting services.

We provide  these  products and services to a wide array of clients,  including
individual investors, small businesses, corporations, governments, governmental
agencies and financial institutions.

         Our principal  executive office is located at World Financial  Center,
North Tower,  250 Vesey Street,  New York, New York 10281; our telephone number
is (212) 449-1000.

         If you want to find more information about us, please see the sections
entitled  "Where  You  Can  Find  More   Information"  and   "Incorporation  of
Information We File with the SEC" in this prospectus.

         In this prospectus,  "ML&Co.", "we", "us" and "our" refer specifically
to Merrill Lynch & Co., Inc., the holding company.  ML&Co. is the issuer of the
MITTS Securities described in this prospectus.
    



<PAGE>


   
                       RATIO OF EARNINGS TO FIXED CHARGES

         In 1998, we acquired the outstanding  shares of Midland Walwyn,  Inc.,
in a  transaction  accounted  for  as  a  pooling-of-interests.  The  following
information  for the fiscal years 1994 through 1997 has been restated as if the
two entities had always been combined.

         The following  table sets forth our  historical  ratios of earnings to
fixed charges for the periods indicated:

<TABLE>
<CAPTION>
                                                     Year Ended Last Friday in December
                                                 1994     1995     1996     1997      1998
                                                 -----------------------------------------

<S>                                               <C>      <C>      <C>      <C>      <C>
Ratio of earnings to fixed charges(a).........    1.2      1.2      1.2      1.2      1.1
- ----------
(a)   The effect of combining Midland Walwyn did not change the ratios reported
      for the fiscal years 1994 through 1997.
</TABLE>

         For the purpose of calculating the ratio of earnings to fixed charges,
"earnings"  consist of earnings from continuing  operations before income taxes
and fixed  charges,  excluding  capitalized  interest  and  preferred  security
dividend requirements.  "Fixed charges" consist of interest costs, the interest
factor in rentals,  amortization  of debt issuance  costs,  preferred  security
dividend requirements of subsidiaries, and capitalized interest.
    



<PAGE>


   
                      DESCRIPTION OF THE MITTS SECURITIES

         On July 28,  1997,  ML&Co.  issued an  aggregate  principal  amount of
$72,000,000 or 7,200,000 units of the MITTS Securities.

         The MITTS Securities were issued as a series of senior debt securities
under the 1983 Indenture which is more fully described below.

         The MITTS Securities will mature on August 30, 2002.

         While at maturity a beneficial  owner of a MITTS Security will receive
the principal  amount of the MITTS  Security plus the  Supplemental  Redemption
Amount  described  below,  if any, we will make no other  payment of  interest,
periodic or otherwise. See "- Payment at Maturity" below.

         The MITTS Securities are not subject to redemption by ML&Co. or at the
option of any  beneficial  owner prior to maturity.  Upon the  occurrence of an
Event of Default with respect to the MITTS Securities, beneficial owners of the
MITTS  Securities  may  accelerate  the  maturity of the MITTS  Securities,  as
described  under "- Events of Default  and  Acceleration"  and  "Other  Terms -
Events of Default" in this prospectus.

         The MITTS Securities were issued in denominations of whole units.
    

PAYMENT AT MATURITY

   
         At the maturity  date, a beneficial  owner of a MITTS Security will be
entitled to receive  the  principal  amount of each unit plus the  Supplemental
Redemption  Amount,  if  any,  all  as  provided  below.  If  the  Supplemental
Redemption  Amount is not  greater  than zero,  a  beneficial  owner of a MITTS
Security  will be entitled to receive  only the  principal  amount of its MITTS
Securities.

         The  "Supplemental  Redemption  Amount" for a MITTS  Security  will be
determined by the calculation agent and will equal:

<TABLE>
<S>                                              <C> <C>
Principal Amount of each Security ($10 per unit)  X   Ending Index Value--Starting Index Value x Participation Rate
                                                      -------------------------------------------------------------
    
                                                                           Starting Index Value
</TABLE>

provided,  however, that in no event will the Supplemental Redemption Amount be
less than zero.

   
         The "Participation Rate" equals 110%.

         The "Starting Index Value" equals 100.

         The "Ending Index Value" will be determined by the  calculation  agent
and will equal the average,  or the  arithmetic  mean, of the closing values of
the Index  determined  on each of the first five  Calculation  Days  during the
Calculation  Period.  If there are fewer than five  Calculation  Days, then the
Ending  Index Value will equal the  average,  or the  arithmetic  mean,  of the
closing values of the Index on the  Calculation  Days, and if there is only one
Calculation  Day,  then the Ending Index Value will equal the closing  value of
the Index on that  Calculation  Day. If no  Calculation  Days occur  during the
Calculation Period because of Market Disruption  Events,  then the Ending Index
Value  will  equal  the  closing  value  of the  Index  determined  on the last
scheduled  Index  Business Day in the  Calculation  Period,  regardless  of the
occurrences of a Market Disruption Event on that day.
    

         The  "Calculation  Period"  means the period  from and  including  the
seventh  scheduled  Index  Business  Day  prior  to the  maturity  date  to and
including the second scheduled Index Business Day prior to the maturity date.

         "Calculation  Day" means any Index Business Day during the Calculation
Period on which a Market Disruption Event has not occurred.

   
         An "Index  Business Day" is a day on which The New York Stock Exchange
and the AMEX are open for  trading  and the Index or any  Successor  Index,  as
defined  below,  is calculated and published.  All  determinations  made by the
calculation agent shall be at the sole discretion of the calculation agent and,
absent a determination by the calculation  agent of a manifest error,  shall be
conclusive for all purposes and binding on ML&Co. and beneficial  owners of the
MITTS Securities.
    



<PAGE>


Hypothetical Returns

   
         The following table  illustrates,  for a range of hypothetical  Ending
Index Values:

    o    the  percentage  change  from the  Starting  Index Value to the Ending
         Index Value;

    o    the total amount payable per unit of MITTS Securities;

    o    the total rate of return on the MITTS Securities;

    o    the pretax annualized rate of return on the MITTS Securities; and

    o    the  pretax  annualized  rate of return of the stocks  underlying  the
         Index, which includes an assumed aggregate dividend yield of 2.33% per
         annum, as more fully described below.
    

<TABLE>
<CAPTION>
   
                                                                                       PRETAX
                                               TOTAL AMOUNT                          ANNUALIZED
                                           PAYABLE AT MATURITY      TOTAL RATE         RATE          PRETAX ANNUALIZED
                       PERCENTAGE CHANGE   PER  $10 PRINCIPAL     OF RETURN ON    OF RETURN ON      RATE OF RETURN OF
 HYPOTHETICAL ENDING  OVER THE STARTING      AMOUNT OF MITTS        THE MITTS       THE MITTS      STOCKS UNDERLYING THE
     INDEX VALUE         INDEX VALUE           SECURITIES          SECURITIES     SECURITIES(1)         INDEX(1)(2)
     -----------      ------------------       ----------          ----------     -------------         ----------
<S>     <C>                  <C>                  <C>                  <C>             <C>                  <C>   
        40                  -60%                  $10.00               0.00%           0.00%               -15.28%
        50                  -50%                  $10.00               0.00%           0.00%               -11.10%
        60                  -40%                  $10.00               0.00%           0.00%                -7.64%
        70                  -30%                  $10.00               0.00%           0.00%                -4.68%
        80                  -20%                  $10.00               0.00%           0.00%                -2.09%
        90                  -10%                  $10.00               0.00%           0.00%                0.21%
    
       100(3)                0%                   $10.00               0.00%           0.00%                2.29%
        110                  10%                  $11.10              11.00%           2.06%                4.18%
        120                  20%                  $12.20              22.00%           3.95%                5.92%
        130                  30%                  $13.30              33.00%           5.69%                7.53%
        140                  40%                  $14.40              44.00%           7.31%                9.03%
        150                  50%                  $15.50              55.00%           8.81%                10.43%
        160                  60%                  $16.60              66.00%           10.23%               11.75%
        170                  70%                  $17.70              77.00%           11.56%               12.99%
        180                  80%                  $18.80              88.00%           12.82%               14.17%
        190                  90%                  $19.90              99.00%           14.01%               15.28%
        200                 100%                  $21.00              110.00%          15.14%               16.35%
        210                 110%                  $22.10              121.00%          16.23%               17.36%
        220                 120%                  $23.20              132.00%          17.26%               18.34%
        230                 130%                  $24.30              143.00%          18.26%               19.27%
</TABLE>

   
(1) The  annualized  rates of  return  specified  in the  preceding  table  are
    calculated on a semiannual bond equivalent basis.
(2) This rate of return assumes:
    (a)  an  investment  of  a  fixed  amount  in  the  stocks  underlying  the
         Sub-Indices with the allocation of that amount  reflecting the current
         relative weights of the stocks in the Sub-Indices
    (b)  a percentage  change in the aggregate  price of the stocks that equals
         the  percentage  change in the Index from the Starting  Index Value to
         the relevant hypothetical Ending Index Value
    (c)  a constant  dividend yield of 2.33% per annum, paid quarterly from the
         date of initial delivery of MITTS Securities,  applied to the value of
         the Index at the end of each quarter, assuming that value increases or
         decreases linearly from the Starting Value to the hypothetical  Ending
         Value;
    
    (d)  no transaction fees or expenses;
   
    (e)  the term of the MITTS  Securities is from August 1, 1997 to August 30,
         2002; and
    (f)  a final Index Value equal to the  hypothetical  Ending Index  Value.  A
         final  Index  Value  equal to the Ending  Index  Value.  The  aggregate
         dividend yield of the stocks  underlying the Sub-Indices as of July 28,
         1997 was approximately 2.33%
(3) The Starting Index Value of the Index.

         The above figures are for purposes of  illustration  only.  The actual
Supplemental  Redemption  Amount received by investors and the total and pretax
annualized  rate of return  resulting  therefrom  will  depend  entirely on the
actual  Ending  Index Value  determined  by the  calculation  agent as provided
herein.
    

ADJUSTMENTS TO THE INDEX; MARKET DISRUPTION EVENTS

   
         If at any time the method of calculating  the Index, or its value , is
changed in any material  respect,  or if the Index is in any other way modified
so that the Index does not, in the  opinion of the  calculation  agent,  fairly
represent  the value of the Index had the  changes  or  modifications  not been
made, then, from and after that time, the calculation agent shall, at the close
of business  in New York,  New York,  on each date that the closing  value with
respect to the Ending Value is to be calculated,  make any  adjustments  as, in
the good faith judgment of the calculation  agent, may be necessary in order to
arrive at a calculation of a value of a stock index  comparable to the Index as
if the changes or  modifications  had not been made,  and calculate the closing
value with reference to the Index, as adjusted.  Accordingly,  if the method of
calculating  the Index is modified so that the value of the Index is a fraction
or a  multiple  of what it  would  have  been if it had not been  modified  for
example,  due to a split in the Index,  then the calculation agent shall adjust
the  Index  in order to  arrive  at a value of the  Index as if it had not been
modified for example, as if the split had not occurred.

         "Market  Disruption  Event" means the  occurrence  or existence on any
Overseas  Index  Business Day with  respect to a Sub-Index  during the one-half
hour period that ends at the regular  official weekday time at which trading on
the Index Exchange  related to that  Sub-Index  occurs of any suspension of, or
limitation  imposed on,  trading,  by reason of  movements  in price  exceeding
limits permitted by the relevant exchange or otherwise, on

    o    the Index  Exchange in  securities  that  comprise  20% or more of the
         value of that Sub-Index or
    o    any exchanges on which futures or options on that Sub-Index are traded
         in options  or futures  if, in the  determination  of the  calculation
         agent,  the  suspension or limitation is material.  For the purpose of
         the foregoing definition:
    

    o    a  limitation  on the hours and  number  of days of  trading  will not
         constitute a Market  Disruption  Event if it results from an announced
         change in the regular hours of the relevant exchange and

         

    o    a limitation on trading  imposed  during the course of a day by reason
         of  movements in price  otherwise  exceeding  levels  permitted by the
         relevant exchange will constitute a Market Disruption Event.

         "Overseas  Index  Business Day" means,  with respect to any sub-index,
any day that is, or, but for the occurrence of a Market Disruption Event, would
have been, a trading day on the relevant  Index Exchange or on any exchanges on
which  futures or options on that  Sub-Index  are  traded,  other than a day on
which  trading on any  relevant  exchange  is  scheduled  to close prior to its
regular weekday closing time.

         "Index Exchange" means,  with respect to any Sub-Index,  the principal
exchange on which the shares comprising that Sub-Index are traded.
    

DISCONTINUANCE OF THE INDEX

   
         If the AMEX  discontinues  publication  of the  Index  and the AMEX or
another entity  publishes a successor or substitute  index that the calculation
agent  determines,  in its sole  discretion,  to be  comparable  to the  Index,
referred  to  in  this  prospectus  as a  "Successor  Index",  then,  upon  the
calculation  agent's  notification  of that  determination  to the  Trustee and
ML&Co., the calculation agent will substitute the Successor Index as calculated
by AMEX or another  entity  for the Index and  calculate  the  Ending  Value as
described  above  under  "-Payment  at  Maturity".  Upon any  selection  by the
calculation agent of a Successor Index,  ML&Co.  shall cause notice to be given
to holders of the MITTS Securities.

         If the AMEX  discontinues  publication  of the Index  and a  Successor
Index is not selected by the calculation agent or is no longer published on any
of the  Calculation  Days,  the value to be  substituted  for the Index for any
Calculation  Day  used to  calculate  the  Supplemental  Redemption  Amount  at
maturity will be a value computed by the calculation agent for each Calculation
Day in accordance  with the procedures  last used to calculate the Index before
any  discontinuance.  If a Successor Index is selected or the calculation agent
calculates  a value as a  substitute  for the Index as  described  below,  that
Successor  Index or value shall be substituted  for the Index for all purposes,
including for purposes of determining whether a Market Disruption Event exists.
If the  calculation  agent  calculates a value as a  substitute  for the Index,
"Calculation  Day" shall mean any day on which the calculation agent is able to
calculate a substitute value.

         If the AMEX discontinues  publication of the Index prior to the period
during which the  Supplemental  Redemption  Amount is to be determined  and the
calculation agent determines that no Successor Index is available at that time,
then on each Business Day until the earlier to occur of

    o    the determination of the Ending Index Value and

    o    a  determination  by the  calculation  agent that a Successor Index is
         available,

    the  calculation  agent  shall  determine  the value  that would be used in
    computing the Supplemental  Redemption Amount as described in the preceding
    paragraph as if that day were a Calculation Day. The calculation agent will
    cause  notice of each value to be  published  not less often than once each
    month  in  The  Wall  Street  Journal,  or  another  newspaper  of  general
    circulation, and arrange for the values to be made available by telephone.
    

         Notwithstanding these alternative arrangements,  discontinuance of the
publication of the Index may adversely affect trading in the Securities.

EVENTS OF DEFAULT AND ACCELERATION

   
         In case an Event of Default with respect to any MITTS  Securities  has
occurred and is continuing, the amount payable to a beneficial owner of a MITTS
Security upon any acceleration permitted by the MITTS Securities,  with respect
to each $10 principal  amount per unit,  will be equal to the principal  amount
per unit and the Supplemental  Redemption Amount, if any,  calculated as though
the  date of  early  repayment  were  the  stated  maturity  date of the  MITTS
Securities.  See "- Payment  at  Maturity"  in this  prospectus.  A  bankruptcy
proceeding commenced in respect of ML&Co. may limit the claim of the beneficial
owner of a MITTS  Security , under Section  502(b)(2) of Title 11 of the United
States Code,  to the  principal  amount per unit of the MITTS  Security plus an
additional amount of contingent  interest  calculated as though the date of the
commencement of the proceeding were the maturity date of the MITTS Securities.

         In case of default in payment of the MITTS Securities,  whether at the
stated  maturity or upon  acceleration,  from and after the  maturity  date the
MITTS  Securities  shall bear  interest,  payable upon demand of the beneficial
owners  thereof,  at the rate of 6.01% per annum, to the extent that payment of
any interest shall be legally enforceable, on the unpaid amount due and payable
on that date in accordance  with the terms of the MITTS  Securities to the date
payment of any amount has been made or duly provided for.

 GLOBAL SECURITIES

          DESCRIPTION OF THE GLOBAL SECURITIES

         Beneficial  owners of the MITTS  Securities  may not receive  physical
delivery  of the MITTS  Securities  nor may they be  entitled to have the MITTS
Securities  registered  in their  names.  The MITTS  Securities  currently  are
represented  by one or more fully  registered  global  securities.  Each global
security was deposited  with, or on behalf of, The Depository  Trust Company or
DTC,  (DTC,  together with any successor  thereto,  being a  "depositary"),  as
depositary,  registered in the name of Cede & Co., DTC's partnership  nominee .
Unless and until it is  exchanged in whole or in part for MITTS  Securities  in
definitive form, the depositary cannot transfer any global security except as a
whole to a nominee of the  depositary or by a nominee of the  depositary to the
depositary or another  nominee of the  depositary  or by the  depositary or any
nominee to a successor of the depositary or a nominee of that successor.

         So long as DTC,  or its  nominee,  is a  registered  owner of a global
security, DTC or its nominee, as appropriate, will be considered the sole owner
or holder of the MITTS  Securities  represented  by a global  security  for all
purposes under the 1983  Indenture.  Except as provided  below,  the beneficial
owners of the MITTS  Securities  represented  by a global  security will not be
entitled  to have the  MITTS  Securities  represented  by the  global  security
registered in their names,  will not receive or be entitled to receive physical
delivery of the MITTS  Securities in definitive form and will not be considered
the owners or Holders  under the 1983  Indenture,  including  for  purposes  of
receiving  any  reports  delivered  by  ML&Co.  or the  trustee  under the 1983
Indenture.  Accordingly,  each person owning a beneficial  interest in a global
security  must  rely on the  procedures  of DTC and,  if that  person  is not a
participant  of DTC on the  procedures  of the  participant  through which that
person owns its  interest,  to exercise  any rights of a holder  under the 1983
Indenture.  ML&Co.  understands that under existing industry practices,  in the
event  that  ML&Co.  requests  any  action  of  holders  or that an  owner of a
beneficial  interest  in a global  security  desires to give or take any action
which a holder is entitled to give or take under the 1983 Indenture,  DTC would
authorize the participants holding the relevant beneficial interests to give or
take any action, and the participants would authorize  beneficial owners owning
through those  participants  to give or take action or would otherwise act upon
the  instructions  of  beneficial  owners.   Arrangements  among  participants,
indirect  participants and beneficial  owners will govern conveyance of notices
and other  communications  by DTC to participants,  by participants to indirect
participants  and by  participants  and  indirect  participants  to  beneficial
owners, subject to any statutory or regulatory requirements as may be in effect
from time to time.

          DTC PROCEDURES

         The following is based on information furnished by DTC:

         DTC is the securities  depositary for the MITTS Securities.  The MITTS
Securities were issued as fully registered securities registered in the name of
Cede & Co., DTC's  partnership  nominee.  One or more fully  registered  global
securities  were issued for the MITTS  Securities  in the  aggregate  principal
amount of the MITTS Securities, and were deposited with DTC.

         DTC is a  limited-purpose  trust company  organized under the New York
Banking  Law,  a  "banking  organization"  within  the  meaning of the New York
Banking Law, a member of the Federal Reserve System,  a "clearing  corporation"
within the meaning of the New York  Uniform  Commercial  Code,  and a "clearing
agency" registered under to the provisions of Section 17A of the Securities and
Exchange Act of 1934, as amended.  DTC holds  securities that its  participants
deposit with DTC. DTC also  facilitates  the settlement  among  participants of
securities transactions, such as transfers and pledges, in deposited securities
through electronic  computerized  book-entry changes in participants' accounts,
thereby eliminating the need for physical movement of securities  certificates.
Direct participants of DTC include securities brokers and dealers, banks, trust
companies,  clearing  corporations and other  organizations.  DTC is owned by a
number of its direct  participants  and by the NYSE,  the AMEX and the National
Association  of  Securities  Dealers,  Inc.  Access to the DTC's system is also
available to others such as  securities  brokers and  dealers,  banks and trust
companies that clear through or maintain a custodial relationship with a direct
participant, either directly or indirectly. The rules applicable to DTC and its
participants are on file with the SEC.

         Purchases  of MITTS  Securities  under DTC's system must be made by or
through  direct  participants,  which  will  receive  a  credit  for the  MITTS
Securities on DTC's records. The ownership interest of each beneficial owner is
in turn to be  recorded  on the  records of direct and  indirect  participants.
Beneficial  owners  will not  receive  written  confirmation  from DTC of their
purchase,  but beneficial owners are expected to receive written  confirmations
providing details of the transaction,  as well as periodic  statements of their
holdings,  from the direct participants or indirect  participants through which
the  beneficial  owner  entered  into the  transaction.  Transfers of ownership
interests in the MITTS Securities are to be accomplished by entries made on the
books of participants acting on behalf of beneficial owners.

         To facilitate  subsequent  transfers,  all MITTS Securities  deposited
with DTC are registered in the name of DTC's  partnership  nominee,  Cede & Co.
The deposit of MITTS Securities with DTC and their  registration in the name of
Cede & Co.  effect no change in beneficial  ownership.  DTC has no knowledge of
the actual  beneficial  owners of the MITTS  Securities;  DTC's records reflect
only the  identity  of the  direct  participants  to whose  accounts  the MITTS
Securities  are credited,  which may or may not be the beneficial  owners.  The
participants  will remain  responsible for keeping account of their holdings on
behalf of their customers.

         Arrangements among participants,  indirect participants and beneficial
owners will govern  conveyance  of notices and other  communications  by DTC to
participants,  by participants to indirect participants and by participants and
indirect  participants  to  beneficial  owners,  subject  to any  statutory  or
regulatory requirements as may be in effect from time to time.

         Neither  DTC nor Cede & Co. will  consent or vote with  respect to the
MITTS  Securities.  Under its usual  procedures,  DTC mails an omnibus proxy to
ML&Co. as soon as possible after the applicable  record date. The omnibus proxy
assigns Cede & Co.'s  consenting or voting rights to those direct  participants
identified  in a listing  attached to the omnibus  proxy to whose  accounts the
MITTS  Securities  are  credited  on the record  date  identified  in a listing
attached to the omnibus proxy.
         DTC will make principal,  premium,  if any, and/or  interest,  if any,
payments on the MITTS Securities in funds  immediately  available to DTC. DTC's
practice is to credit direct  participants'  accounts on the applicable payment
date in accordance  with their  respective  holdings shown on the  depositary's
records  unless DTC has reason to believe  that it will not receive  payment on
that date. Standing  instructions and customary practices,  as is the case with
securities  held for the accounts of customers in bearer form or  registered in
"street name", will govern payments by participants to beneficial  owners,  and
will be the  responsibility  of the  participant and not of DTC, the trustee or
ML&Co., subject to any statutory or regulatory requirements as may be in effect
from time to time. Payment of principal,  premium, if any, and/or interest,  if
any, to DTC is the  responsibility  of ML&Co.  or the trustee,  disbursement of
payments to direct  participants is the responsibility of DTC, and disbursement
of  payments  to the  beneficial  owners is the  responsibility  of direct  and
indirect participants.

    EXCHANGE FOR CERTIFICATED SECURITIES

    If:

    o    the  depositary  is at any time  unwilling  or unable to  continue  as
         depositary  and a  successor  depositary  is not  appointed  by ML&Co.
         within 60 days,

    o    ML&Co.  executes  and  delivers to the trustee a company  order to the
         effect that the global securities shall be exchangeable, or

    o    an Event of  Default  under the 1983  Indenture  has  occurred  and is
         continuing with respect to the MITTS Securities,

DTC will exchange the global securities for MITTS Securities in definitive form
of like tenor and of an equal aggregate  principal  amount, in denominations of
$10 and integral multiples of $10. The depositary shall instruct the Trustee as
to the names in which it is to register the definitive  MITTS  Securities.  DTC
expects that these  instructions  to be based upon  directions  received by the
depositary from participants with respect to ownership of beneficial  interests
in the global securities.

         In addition,  ML&Co.  may decide to  discontinue  use of the system of
book-entry transfers through the depositary. In that event, MITTS Securities in
definitive form will be printed and delivered.

         The  information  in this section  concerning DTC and DTC's system has
been  obtained  from  sources that ML&Co.  believes to be reliable,  but ML&Co.
takes no responsibility for its accuracy.
    

SAME-DAY SETTLEMENT AND PAYMENT

   
         ML&Co.  will  make all  payments  of  principal  and the  Supplemental
Redemption Amount, if any, in immediately  available funds so long as the MITTS
Securities are maintained in book-entry form.
    


                                   THE INDEX

         The value of the  Index on any Index  Business  Day is  calculated  and
disseminated  by the AMEX. The AMEX generally  calculates and  disseminates  the
value  of  the  Index  based  on  the  most  recently  reported  values  of  the
Sub-Indices,  at  approximately  15-second  intervals during the AMEX's business
hours  and  the end of  each  Index  Business  Day  via  the  Consolidated  Tape
Association's  Network  B. The  value of the Index is  reported  on the AMEX and
Bloomberg under the symbol "EMX" and on Reuters under the symmbol ".EMX".

DETERMINATION OF INDEX MULTIPLIER FOR EACH SUB-INDEX

   
         The initial weighting of each Sub-Index was determined at the close of
business on the date the MITTS  Securities  were priced for initial sale to the
public, or the "Pricing Date", based on its relative market capitalization. The
market  capitalization  of a stock  equals the  product of the total  number of
shares of stock outstanding and the price of a share of stock. The total market
capitalization of the stocks comprising each Sub-Index was determined using the
most recently available information concerning the number of shares outstanding
for each stock  contained in a Sub-Index and the most recently  available price
for  each  share.   Current  exchange  rates  were  used  to  translate  market
capitalization  information  into  U.S.  dollars.  The  market  capitalizations
expressed in U.S. dollars of each Sub-Index were totaled,  or the "Total Market
Capitalization". The weighting of each Sub-Index was then determined and equals
the percentage of the market  capitalization for each Sub-Index relative to the
Total Market  Capitalization.  The Index Multiplier for each Sub-Index was then
calculated and equals

    o    the weighting for that Sub-Index multiplied by 100, divided by

    o    the  most  recently  available  value  of that  Sub-Index.  The  Index
         Multipliers  were calculated in this way so that the Index would equal
         100.00 on the Pricing Date.

         The Index Multiplier for each Sub-Index will remain fixed, except that
the AMEX may adjust the Index  Multiplier in the event of a significant  change
in how a Sub-Index is calculated. The Index will not be rebalanced periodically
to reflect changes in the relative market capitalizations of the Sub-Indices.
    

COMPUTATION OF THE INDEX

   
         The Index is  calculated by totaling the products of the most recently
available value of each Sub-Index and the Index  Multiplier  applicable to that
Sub-Index.  Since the Sub-Indices are based on stocks traded on stock exchanges
in Europe,  once these stock  exchanges close and the values of the Sub-Indices
become fixed until these stock exchanges reopen, the value of the Index will be
fixed.
    

SUB-INDICES

   
         The  following is a list of the  Sub-Indices  and certain  information
concerning  each  Sub-Index.   All  disclosure  contained  in  this  prospectus
regarding the Sub-Indices is derived from publicly available information.

         FINANCIAL TIMES SE 100  INDEX--"FTSE 100"
    

         DESCRIPTION  OF FTSE  100:  The FTSE 100 is  intended  to  provide  an
         indication  of the pattern of common  stock price  movement of the 100
         common  stocks with the largest  market  capitalization  on the London
         Stock Exchange.

         PUBLISHER:   The Financial Times and London Stock Exchange

   
         REQUIRED DISCLOSURE:  The FTSE 100 is calculated by FTSE International
         Limited in conjunction with the Institute of Actuaries and the Faculty
         of Actuaries. Merrill Lynch & Co., Inc. has obtained full license from
         FTSE  International  Limited to use its trademark and copyright in the
         creation of this MITTS Security.  FTSE International  Limited does not
         sponsor, endorse or promote this MITTS Security.

         DEUTSCHER  AKTIENINDEX--"DAX(R)"

         DESCRIPTION  OF DAX: The DAX is total rate of return  index  measuring
         the  performance  of 30 common stocks on the Frankfurt  Stock Exchange
         selected based on their market  capitalization  and trading volume.  A
         total rate of return index reflects both the price  performance of the
         relevant common stocks as well as the dividends paid on common stocks.
    

         PUBLISHER:   Deutsche Borse AG

         "DAX" is a registered trademark of Deutsche Borse AG.

   
         COMPAGNIE DES AGENTS DE CHANGE 40  INDEX--"CAC 40"
    

         DESCRIPTION OF CAC 40: The CAC 40 is intended to provide an indication
         of the pattern of common stock price  movement of the 40 common stocks
         with the largest market capitalization on the Paris Bourse.

         PUBLISHER:   SBF--Paris Bourse

         REQUIRED DISCLOSURE: "CAC-40" is a registered trademark of the Societe
         des Bourses  Francaises-Paris  Bourse, which designates the index that
         the SBF-Paris  Bourse  calculates and publishes.  Authorization to use
         the index and the "CAC-40" trademark in connection with the Securities
         has been granted by license.

         The SBF-Paris Bourse,  owner of the trademark and of the CAC-40,  does
         not  sponsor,   endorse  or   participate  in  the  marketing  of  the
         Securities.  The SBF-Paris Bourse makes no warranty or  representation
         to any  person,  express  or  implied,  as to the  figure at which the
         CAC-40  stands  at any  particular  time,  nor as to  the  results  or
         performance of the Securities.  Neither shall the SBF-Paris  Bourse be
         under  any  obligation  to  advise  any  person  of any  error  in the
         published level of the CAC-40.

   
         SWISS MARKET  INDEX--"SMI(R)"
    

         DESCRIPTION  OF SMI: The SMI is intended to provide an  indication  of
         the pattern of common stock price  movement of common  stocks with the
         largest market  capitalization  and greatest  liquidity on the Geneva,
         Zurich and Basle Stock Exchanges.

         PUBLISHER:   Swiss Exchange

   
         REQUIRED  DISCLOSURE:  The  Securities  are not in any way  sponsored,
         endorsed,  sold or  promoted  by the  Swiss  Exchange  and  the  Swiss
         Exchange makes no warranty or  representation  whatsoever,  express or
         implied,  either as to the results to be obtained  from the use of the
         SMI index  and/or  the  figure  at which  the SMI index  stands at any
         particular  time on any particular day or otherwise.  The SMI index is
         compiled and calculated  solely by the Swiss  Exchange.  However,  the
         Swiss  Exchange  shall  not  be  liable,   whether  in  negligence  or
         otherwise,  to any person for any error in the SMI index and the Swiss
         Exchange shall not be under any obligation to advise any person of any
         error therein.
    

         "SMI" is a registered trademark of the Swiss Exchange.

   
         AMSTERDAM EUROPEAN OPTIONS EXCHANGE  INDEX--"AEX"
    

         DESCRIPTION  OF AEX: The AEX is intended to provide an  indication  of
         the  pattern of common  stock price  movement of the 25 common  stocks
         with  the  largest  market   capitalization  on  the  Amsterdam  Stock
         Exchange.

         PUBLISHER:   AEX--Optiebeurs nv

         REQUIRED DISCLOSURE:  The AEX-Optiebeurs nv has all proprietary rights
         with  relation  to the  AEX  index.  The  AEX-Optiebeurs  nv in no way
         sponsors,  endorses or is otherwise involved in the issue and offering
         of the Securities.  The  AEX-Optiebeurs  nv disclaims any liability to
         any  party  for any  inaccuracy  in the data on which the AEX Index is
         based,  for any mistakes,  errors,  or omissions in the calculation or
         dissemination  of the AEX  Index or for the  manner  in which  the AEX
         Index  is used in  connection  with  the  issue  and  offering  of the
         Securities.

   
         MILANO ITALIA BORSA 30  INDEX--"MIB 30"
    

         DESCRIPTION OF MIB 30: The MIB 30 is intended to provide an indication
         of the pattern of common  stock price  movement of common  stocks with
         the  largest  market  capitalization  and  greatest  liquidity  on the
         Italian Stock Exchange.

         PUBLISHER:   Consiglio di Borsa

   
         STOCKHOLM OPTIONS MARKET  INDEX--"OMX index"
    

         DESCRIPTION  OF OMX  INDEX:  The OMX index is  intended  to provide an
         indication  of the pattern of common  stock  price  movement of the 30
         common  stocks  with the  largest  volume of trading on the  Stockholm
         Stock Exchange.

         PUBLISHER:   OM Gruppen AB

   
         REQUIRED  DISCLOSURE:  The  Securities  are not in any way  sponsored,
         endorsed,  sold or  promoted  by OM  Gruppen AB ("OM") and OM makes no
         warranty or representation  whatsoever,  express or implied, either as
         to the results to be obtained from the use of the OMX index and/or the
         figure at which the said OMX index  stands at any  particular  time on
         any  particular  day or  otherwise.  The OMX  index  is  compiled  and
         calculated solely by an indexer on behalf of OM. However, OM shall not
         be liable,  whether in negligence or otherwise,  to any person for any
         error in the OMX index and OM shall  not be under  any  obligation  to
         advise any person of any error therein.
    

         All rights to the trademark OMX, OMX INDEX are vested in OM Gruppen AB
         ("OM") and are used under a license agreement with OM.

         IBEX 35 Index

         DESCRIPTION  OF  IBEX  35:  The  IBEX 35 is  intended  to  provide  an
         indication  of the pattern of common  stock  price  movement of the 35
         common  stocks with the  greatest  liquidity  continuously  traded and
         quoted on the Joint Stock  Exchange  System made up of the  Barcelona,
         Bilbao, Madrid and Valencia stock exchanges.

         PUBLISHER:   Sociedad de Bolsas, S.A.

         REQUIRED DISCLOSURE:  Sociedad de Bolsas, S.A. does not warrant in any
         case  nor  for  any  reason  whatsoever:  (a)  The  continuity  of the
         composition  of the  IBEX 35 Index  exactly  as it is  today;  (b) the
         continuity of the method for  calculating the IBEX 35 Index exactly as
         it is calculated today; (c) the continuity of the calculation, formula
         and publication of the IBEX 35 Index; (d) the precision,  integrity or
         freedom from errors or mistakes in the  composition and calculation of
         the IBEX 35  Index;  (e) the  adequacy  of the  IBEX 35 Index  for the
         purposes  expected in the issue of the  Securities  nor for dealing in
         the same.

         The publisher of each Sub-Index will add or delete stocks due to events
such as the  bankruptcy  or merger of the issuer of a stock.  The publisher of a
Sub-Index may reevaluate the composition of the stocks  underlying the Sub-Index
at specified  intervals to assure that they still meet the selection criteria or
any ongoing eligibility criteria.

   
         The  publisher of a Sub-Index is under no  obligation  to continue the
calculation  and  dissemination  of that Sub-Index and the publisher may change
the  method by which  that  Sub-Index  is  calculated.  The  publishers  of the
Sub-Indices  are under no obligation to take the needs of ML&Co. or the holders
of the MITTS into  consideration  in determining,  composing or calculating the
Sub-Indices.
    


                                  OTHER TERMS

   
         ML&Co.  issued  the  MITTS  Securities  as a  series  of  senior  debt
securities under the 1983 Indenture,  dated as of April 1, 1983, as amended and
restated,  between ML&Co.  and The Chase Manhattan Bank, as trustee.  A copy of
the 1983  Indenture  is  filed  as an  exhibit  to the  registration  statement
relating  to the MITTS  Securities  of which  this  prospectus  is a part.  The
following  summaries of the material  provisions of the 1983  Indenture are not
complete and are subject to, and  qualified in their  entirety by reference to,
all provisions of the 1983 Indenture, including the definitions of terms in the
1983 Indenture.

         ML&Co.  may issue series of senior debt  securities  from time to time
under the 1983 Indenture,  without limitation as to aggregate principal amount,
in one or more  series  and upon  terms  as  ML&Co.  may  establish  under  the
provisions of the 1983 Indenture.

         The 1983  Indenture  and the  MITTS  Securities  are  governed  by and
construed in accordance with the laws of the State of New York.

         ML&Co.  may issue senior debt  securities  with terms  different  from
those of senior debt securities  previously issued, and issue additional senior
debt securities of a previously issued series of senior debt securities.

         The senior debt  securities  are  unsecured  and rank equally with all
other  unsecured and  unsubordinated  indebtedness of ML&Co.  However,  because
ML&Co. is a holding company, the rights of ML&Co. and its creditors,  including
the holders of senior debt  securities,  to participate in any  distribution of
the  assets  of any  subsidiary  upon  its  liquidation  or  reorganization  or
otherwise  are  necessarily  subject to the prior  claims of  creditors  of the
subsidiary,  except to the extent that a bankruptcy  court may recognize claims
of ML&Co.  itself as a creditor of the  subsidiary  . In  addition,  dividends,
loans and advances from certain  subsidiaries,  including MLPF&S, to ML&Co. are
restricted by net capital  requirements under the Exchange Act, and under rules
of exchanges and other regulatory bodies.
    

LIMITATIONS UPON LIENS

   
         ML&Co. may not, and may not permit any  majority-owned  subsidiary to,
create,  assume,  incur or permit to exist any  indebtedness for borrowed money
secured  by a  pledge,  lien or  other  encumbrance,  other  than  those  liens
specifically  permitted  by the  1983  Indenture,  on the  Voting  Stock  owned
directly or indirectly by ML&Co. of any majority-owned subsidiary, other than a
majority-owned  subsidiary  which, at the time of the incurrence of the secured
indebtedness,  has a net worth of less than $3,000,000,  unless the outstanding
senior  debt  securities  are  secured  equally  and  ratably  with the secured
indebtedness.

         "Voting  Stock" is defined in the 1983  Indenture  as the stock of the
class or classes having general  voting power under ordinary  circumstances  to
elect at least a majority of the board of directors,  managers or trustees of a
corporation  provided that, for the purposes of the 1983 Indenture,  stock that
carries only the right to vote  conditionally  on the occurrence of an event is
not considered voting stock whether or not the event has happened.
    

LIMITATION ON DISPOSITION OF VOTING STOCK OF, AND MERGER AND SALE OF
ASSETS BY, MLPF&S

   
         ML&Co. may not sell, transfer or otherwise dispose of any Voting Stock
of MLPF&S or permit  MLPF&S to issue,  sell or otherwise  dispose of any of its
Voting Stock, unless, after giving effect to any transaction,  MLPF&S remains a
Controlled Subsidiary.

         "CONTROLLED  SUBSIDIARY"  is defined in the 1983  Indenture  to mean a
corporation  more than 80% of the  outstanding  shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

    In addition,  ML&Co. may not permit MLPF&S to:

    o    merge or  consolidate,  unless the  surviving  company is a Controlled
         Subsidiary, or
    

    o    convey or  transfer  its  properties  and assets  substantially  as an
         entirety, except to one or more Controlled Subsidiaries.

MERGER AND CONSOLIDATION

   
         ML&Co. may consolidate or merge with or into any other corporation and
ML&Co. may sell, lease or convey all or substantially  all of its assets to any
corporation, provided that:

    o    the  resulting  corporation,  if other than ML&Co.,  is a  corporation
         organized and existing  under the laws of the United States of America
         or any U.S. state and assumes all of ML&Co.'s obligations to:

    o    pay any amounts due and payable or deliverable with respect to all the
         senior debt securities; and

    o    perform  and  observe  all of  ML&Co.'s  obligations  under  the  1983
         Indenture, and

    o    ML&Co.  or the  successor  corporation,  as the case  may be,  is not,
         immediately  after any  consolidation or merger,  in default under the
         1983 Indenture.
    

MODIFICATION AND WAIVER

   
         ML&Co.  and the trustee may modify and amend the 1983  Indenture  with
the  consent  of  holders  of at  least  66 2/3% in  principal  amount  of each
outstanding  series of senior debt securities  affected.  However,  without the
consent of each holder of any  outstanding  senior debt security  affected,  no
amendment or modification to the 1983 Indenture may:

    o    change  the  stated   maturity  date  of  the  principal  of,  or  any
         installment of interest or Additional  Amounts  payable on, any senior
         debt  security or any premium  payable on  redemption  , or change the
         redemption price;

    o    reduce the principal amount of, or the interest or Additional  Amounts
         payable on, any senior debt security or reduce the amount of principal
         which could be declared  due and  payable  before the stated  maturity
         date;

    o    change  the place or  currency  of any  payment  of  principal  or any
         premium,  interest or  Additional  Amounts  payable on any senior debt
         security;

    o    impair the right to institute suit for the  enforcement of any payment
         on or with respect to any senior debt security;

    o    reduce the percentage in principal  amount of the  outstanding  senior
         debt  securities  of any  series,  the  consent  of whose  holders  is
         required to modify or amend the 1983 Indenture; or

    o    modify  the  foregoing   requirements  or  reduce  the  percentage  of
         outstanding senior debt securities necessary to waive any past default
         to less than a majority.

         No modification or amendment of ML&Co.'s Subordinated Indenture or any
Subsequent  Indenture for subordinated debt securities may adversely affect the
rights of any holder of  ML&Co.'s  senior  indebtedness  without the consent of
each holder affected. The holders of at least a majority in principal amount of
outstanding  senior debt  securities  of any series may,  with  respect to that
series,  waive past defaults under the 1983  Indenture and waive  compliance by
ML&Co.  with  provisions  in the 1983  Indenture,  except  as  described  under
"--Events of Default".

 EVENTS OF DEFAULT

          Each of the following will be Events of Default with respect to senior
debt securities of any series:

    o    default in the payment of any interest or Additional  Amounts  payable
         when due and continuing for 30 days;

    o    default in the payment of any principal or premium when due;

    o    default in the deposit of any sinking fund payment, when due;

    o    default in the performance of any other obligation of ML&Co. contained
         in the 1983  Indenture for the benefit of that series or in the senior
         debt  securities of that series,  continuing for 60 days after written
         notice as provided in the 1983 Indenture;

    o    specified  events  in  bankruptcy,  insolvency  or  reorganization  of
         ML&Co.; and

    o    any other  Event of  Default  provided  with  respect  to senior  debt
         securities  of that series  which are not  inconsistent  with the 1983
         Indenture.

If an Event of Default  occurs and is continuing  for any series of senior debt
securities,   other  than  as  a  result  of  the  bankruptcy,   insolvency  or
reorganization  of  ML&Co.,  the  trustee  or the  holders  of at least  25% in
principal  amount of the outstanding  senior debt securities of that series may
declare  all  amounts,  or any lesser  amount  provided  for in the senior debt
securities,  due and payable or  deliverable  immediately.  At any time after a
declaration  of  acceleration  has  been  made  with  respect  to  senior  debt
securities  of any series but before the  trustee  has  obtained a judgment  or
decree for payment of money , the holders of a majority in principal  amount of
the  outstanding  senior  debt  securities  of  that  series  may  rescind  any
declaration of acceleration  and its  consequences,  if all payments due, other
than  those due as a result of  acceleration,  have been made and all Events of
Default have been remedied or waived.

         The holders of a majority in principal amount or aggregate issue price
of the outstanding senior debt securities of that series may waive any Event of
Default with respect to that series, except a default:

    o    in the payment of any amounts due and payable or deliverable under the
         debt securities of that series; or

    o    in respect of an obligation or provision of the 1983  Indenture  which
         cannot  be  modified  under the terms of that  Indenture  without  the
         consent of each holder of each outstanding  security of each series of
         senior debt securities affected.

         The  holders  of a majority  in  principal  amount of the  outstanding
senior  debt  securities  of a series may direct the time,  method and place of
conducting any proceeding for any remedy available to the trustee or exercising
any trust or power  conferred  on the trustee with respect to those senior debt
securities,  provided that any direction shall not be in conflict with any rule
of law or the 1983 Indenture.  Before proceeding to exercise any right or power
under the 1983 Indenture at the direction of the holders,  the trustee shall be
entitled to receive  from the holders  reasonable  security or  indemnification
against the costs,  expenses and  liabilities  which might be incurred by it in
complying with any direction.

         The MITTS Securities and other series of senior debt securities issued
under  the  1983  Indenture  do not  have  the  benefit  of  any  cross-default
provisions with other indebtedness of ML&Co.

         ML&Co.  is required to furnish to the trustee  annually a statement as
to  the  fulfillment  by  ML&Co.  of  all of its  obligations  under  the  1983
Indenture.


                           PROJECTED PAYMENT SCHEDULE

         Solely  for  purposes  of  applying  the  final  Treasury   Department
Regulations  (the "Final  Regulations")  concerning  the United States  Federal
income tax  treatment  of  contingent  payment  debt  instruments  to the MITTS
Securities,  ML&Co. has determined that the projected  payment schedule for the
MITTS  Securities will consist of payment on the maturity date of the principal
amount a projected  Supplemental  Redemption  Amount equal to $3.7137 per unit.
This represents an estimated yield on the MITTS  Securities  equal to 6.32% per
annum, compounded semiannually.

         The  projected   payment   schedule,   including  both  the  projected
Supplemental Redemption Amount and the estimated yield on the MITTS Securities,
has been determined solely for United States Federal income tax purposes, i.e.,
for  purposes of  applying  the Final  Regulations  to the  Securities,  and is
neither a prediction nor a guarantee of what the actual Supplemental Redemption
Amount  will be, or that the actual  Supplemental  Redemption  Amount will even
exceed zero.

         The  following  table sets forth the amount of  interest  that will be
deemed to have accrued with respect to each unit of the MITTS Securities during
each  accrual  period over an assumed  term of five years and one month for the
MITTS  Securities  based  upon the  projected  payment  schedule  for the MITTS
Securities, including both the projected Supplemental Redemption Amount and the
estimated  yield  equal  to  6.32%  per  annum,  compounded  semiannually,   as
determined by ML&Co.  for purposes of application  of the Final  Regulations to
the MITTS Securities:
    



<PAGE>
<TABLE>
<CAPTION>


                                                                           INTEREST DEEMED       TOTAL INTEREST
                                                                                 TO              DEEMED TO HAVE
                                                                           ACCRUE DURING           ACCRUED ON
                                                                           ACCRUAL PERIOD     SECURITIES AS OF END
                                                                             (PER UNIT)        OF ACCRUAL PERIOD
                                                                                                   (PER UNIT)
   
                             ACCRUAL PERIOD
<S>                                                                          <C>                    <C>
      August 1, 1997 through August 30, 1997...........................       $0.0495                $0.0495
      August 31, 1997 through February 28, 1998........................       $0.3173                $0.3668
      March 1, 1998 through August 30, 1998............................       $0.3274                $0.6942
      August 31, 1998 through February 28, 1999........................       $0.3376                $1.0318
      March 1, 1999 through August 30, 1999............................       $0.3484                $1.3802
      August 31, 1999 through February 29, 2000........................       $0.3593                $1.7395
      March 1, 2000 through August 30, 2000............................       $0.3707                $2.1102
      August 31, 2000 through February 28, 2001........................       $0.3823                $2.4925
      March 1, 2001 through August 30, 2001............................       $0.3945                $2.8870 
      August 31, 2001 through February 28, 2002........................       $0.4069                $3.2939
      March 1, 2002 through August 30, 2002............................       $0.4198                $3.7137
</TABLE>


PROJECTED SUPPLEMENTAL REDEMPTION AMOUNT = $3.7137 PER UNIT.

         All prospective investors in the MITTS Securities should consult their
own tax advisors  concerning the application of the Final  Regulations to their
investment in the MITTS Securities.  Investors in the MITTS Securities may also
obtain the projected payment schedule,  as determined by ML&Co. for purposes of
the application of the Final Regulations to the MITTS Securities, by submitting
a written  request for such  information  to Merrill Lynch & Co.,  Inc.,  Attn:
Darryl W. Colletti,  Corporate  Secretary's  Office,  100 Church  Street,  12th
Floor, New York, New York 10080- 6512.
    

<PAGE>


   
                      WHERE YOU CAN FIND MORE INFORMATION

         We file reports,  proxy statements and other information with the SEC.
Our SEC filings are also  available  over the Internet at the SEC's web site at
http://www.sec.gov. You may also read and copy any document we file by visiting
the SEC's public  reference rooms in Washington,  D.C., New York, New York, and
Chicago,   Illinois.   Please  call  the  SEC  at  1-800-SEC-0330  for  further
information  about the public  reference  rooms.  You may also  inspect our SEC
reports and other  information at the New York Stock  Exchange,  Inc., 20 Broad
Street, New York, New York 10005.

         We have  filed a  registration  statement  on Form  S-3  with  the SEC
covering the MITTS Securities and other securities.  For further information on
ML&Co. and the MITTS Securities, you should refer to our registration statement
and its exhibits.  This prospectus  summarizes material provisions of contracts
and  other  documents  that we refer you to.  Because  the  prospectus  may not
contain all the information that you may find important,  you should review the
full text of these  documents.  We have included  copies of these  documents as
exhibits to our registration statement of which this prospectus is a part.


               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

         The SEC allows us to incorporate by reference the  information we file
with them, which means:

    o    incorporated documents are considered part of the prospectus;

    o    we can disclose important information to you by referring you to those
         documents; and

    o    information  that we file with the SEC will  automatically  update and
         supersede this incorporated information.

         We  incorporate  by reference  the  documents  listed below which were
filed with the SEC under the Exchange Act:

    o    annual report on Form 10-K for the year ended December 25, 1998; and

    o    current reports on Form 8-K dated December 28, 1998, January 19, 1999,
         February 17, 1999,  February 18, 1999, February 22, 1999, February 23,
         1999 and March 26, 1999.

         We also  incorporate by reference each of the following  documents that
we will file with the SEC after the date of this prospectus  until this offering
is completed or after the date of this initial registration statement and before
the effectiveness of the registration statement:

    o    reports filed under Sections 13(a) and (c) of the Exchange Act;

    o    definitive  proxy or information  statements filed under Section 14 of
         the  Exchange  Act in  connection  with any  subsequent  stockholders'
         meeting; and

    o    any reports filed under Section 15(d) of the Exchange Act.

         You should  rely only on  information  contained  or  incorporated  by
reference in this prospectus.  We have not, and MLPF&S has not,  authorized any
other person to provide you with different information.  If anyone provides you
with different or inconsistent  information,  you should not rely on it. We are
not,  and  MLPF&S  is not,  making  an offer to sell  these  securities  in any
jurisdiction where the offer or sale is not permitted.

         You should assume that the information appearing in this prospectus is
accurate  as of the  date of this  prospectus  only.  Our  business,  financial
condition and results of operations may have changed since that date.

         You may  request a copy of any filings  referred  to above  (excluding
exhibits),  at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan,  Jr.,  Corporate  Secretary's  Office,  Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.


                              PLAN OF DISTRIBUTION

         This  prospectus has been prepared in connection  with secondary sales
of the MITTS  Securities  and is to be used by MLPF&S  when  making  offers and
sales related to market-making transactions in the MITTS Securities.

         MLPF&S  may  act  as  principal   or  agent  in  these   market-making
transactions.

         The MITTS Securities may be offered on the AMEX or off the exchange in
negotiated transactions or otherwise.

         The   distribution  of  the  MITTS  Securities  will  conform  to  the
requirements  set forth in the applicable  sections of Rule 2720 of the Conduct
Rules of the NASD.
    


                                    EXPERTS

   
         The  consolidated   financial  statements  and  the  related  financial
statement schedule  incorporated in this prospectus by reference from the Annual
Report on Form 10-K of Merrill  Lynch & Co.,  Inc.  and  subsidiaries  have been
audited  by  Deloitte & Touche  LLP,  independent  auditors,  as stated in their
reports  (which  express  an  unqualified   opinion  and  which  report  on  the
consolidated  financial  statements  includes an  explanatory  paragraph for the
change in  accounting  method  for  certain  internal-use  software  development
costs),   which  are  incorporated  herein  by  reference,   and  have  been  so
incorporated  in  reliance  upon the  reports  of such  firm  given  upon  their
authority as experts in accounting and auditing.
    


<PAGE>
   
The information in this prospectus is not complete and may be changed.  We may
not sell these  securities  until the  registration  statement  filed with the
Securities  and Exchange  Commission is effective.  This  prospectus is not an
offer to sell these  securities and it is not soliciting an offer to buy these
securities in any state where the offer or sale is not permitted.
    



   
                             Subject to Completion
                  Preliminary Prospectus dated March 29, 1999
    

P R O S P E C T U S
- -------------------

   


                           Merrill Lynch & Co., Inc.
                    Market Index Target-Term Securities(R)
                 based upon the Dow Jones Industrial AverageSM
                             due January 14, 2003
                             "MITTS(R) Securities"
                         $10 principal amount per unit

         This prospectus is to be used by Merrill Lynch & Co.,  Merrill Lynch,
Pierce, Fenner & Smith Incorporated,  our wholly-owned subsidiary, when making
offers  and  sales  related  to   market-making   transactions  in  the  MITTS
Securities.

<TABLE>
<CAPTION>

The MITTS Securities:                                     Payment at Maturity:
<S>                                                      <C>
o   100% principal protection at maturity                o  On the maturity date, for each unit of the
o   No payments before the maturity date                    MITTS Securities you own, we will pay you an
o   Senior unsecured debt securities of Merrill Lynch &     amount equal to the sum of the principal amount
    Co., Inc.                                               of each unit and an additional amount based on
o  Linked to the value of the index measuring the Dow       the percentage increase, if any, in the value
   Jones Industrial Average SM                              of the index, above a benchmark value
                                                            of 8,594, as described in this prospectus
o  The MITTS Securities are listed on the New            o  You will receive no less than the principal amount
   York Stock Exchange under the symbol "DJM"               of your MITTS Securities
   Securities
</TABLE>



               Investing in the MITTS Securities involves risks.

                    See "Risk Factors" beginning on page 3.
    

         Neither  the  Securities  and  Exchange   Commission  nor  any  state
securities  commission  has approved or  disapproved  of these  securities  or
determined if this prospectus is truthful or complete.  Any  representation to
the contrary is a criminal offense.

   
         The sale price of the MITTS Securities will be the prevailing  market
price at the time of sale.
    


                  ------------------------------------------

   
                              Merrill Lynch & Co.
    

                  -------------------------------------------

                       The date of this prospectus is , 199 .

- -----------------
   
"MITTS" and "Market Index Target-Term Securities" are registered service marks
owned by Merrill Lynch & Co., Inc.

         "Dow  Jones",  "Dow Jones  Industrial  Average  SM", and "DJIASM" are
service  marks of Dow  Jones &  Company,  Inc.  ("Dow  Jones")  and have  been
licensed for use for certain purposes by Merrill Lynch, Pierce, Fenner & Smith
Incorporated.
    



<PAGE>



   
                               TABLE OF CONTENTS

                                                                        Page

RISK FACTORS..............................................................3

MERRILL LYNCH & CO., INC..................................................7

RATIO OF EARNINGS TO FIXED CHARGES........................................8

DESCRIPTION OF THE MITTS SECURITIES.......................................9

THE INDEX................................................................16

OTHER TERMS..............................................................17

PROJECTED PAYMENT SCHEDULE...............................................20

WHERE YOU CAN FIND MORE INFORMATION......................................21
INCORPORATION OF INFORMATION WE FILE WITH THE SEC........................22
PLAN OF DISTRIBUTION.....................................................23
EXPERTS..................................................................23
    




<PAGE>



                                 RISK FACTORS

   
         Your  investment  in the MITTS  Securities  will involve  risks.  You
should  carefully  consider the following  discussion of risks before deciding
whether an investment in the MITTS Securities is suitable for you.

YOU MAY NOT EARN A RETURN ON YOUR INVESTMENT.

         You should be aware that at maturity we will pay you no more than $10
for each  unit of the MITTS  Securities  you own if the  average  value of the
index over five  trading days  shortly  before the maturity  date is less than
8,594.  This will be true even if at some  time  during  the life of the MITTS
Securities,  the value of the index,  as  adjusted,  was higher than 8,594 but
later falls below 8,594.
    

YOUR  YIELD  MAY BE  LOWER  THAN THE  YIELD ON A  STANDARD  DEBT  SECURITY  OF
COMPARABLE MATURITY.

   
         The  amount we pay you at  maturity  may be less than the  return you
could  earn on other  investments.  Your  yield may be less than the yield you
would earn if you bought a  standard  senior  non-callable  debt  security  of
Merrill Lynch & Co., Inc. with the same maturity date. Your investment may not
reflect the full opportunity cost to you when you take into account  inflation
and other factors that affect the time value of money.
    

YOUR RETURN  WILL NOT REFLECT THE RETURN OF OWNING THE STOCKS  INCLUDED IN THE
INDEX.

         Your  return  will not  reflect  the return you would  realize if you
actually owned the stocks underlying the index and received the dividends paid
on those  stocks.  This is  because  the value of the index is  calculated  by
reference  to the prices of the common  stocks  included in the index  without
taking into consideration the value of dividends paid on those stocks.

YOUR RETURN WILL NOT REFLECT THE PAYMENT OF DIVIDENDS.

   
         The index is  calculated  with  reference to the prices of the common
stocks  comprising  the index without taking into  consideration  the value of
dividends paid on those stocks.  Therefore,  the return you earn on your MITTS
Securities,  if any, will not be the same as the return that you would earn if
you actually owned each of the common stocks underlying the index and received
the dividends paid on those stocks.

THERE MAY BE AN UNCERTAIN TRADING MARKET FOR THE MITTS SECURITIES IN THE 
FUTURE.

         Although the MITTS Securities are listed on the NYSE under the symbol
"DJM," you cannot assume that a trading  market will continue to exist for the
MITTS  Securities.  If a trading market in the MITTS  Securities  continues to
exist,  you cannot assume that there will be liquidity in the trading  market.
The  continued  existence of a trading  market for the MITTS  Securities  will
depend  on  our   financial   performance   and  other  factors  such  as  the
appreciation, if any, of the value of the index.

         If the trading market for the MITTS  Securities is limited and you do
not wish to hold your investment until maturity, there may be a limited number
of buyers for your MITTS Securities.  This may affect the price you receive if
you sell before maturity.

THERE ARE MANY FACTORS AFFECTING THE TRADING VALUE OF THE MITTS SECURITIES.

         We believe that the value of the index and a number of other  factors
will affect the trading value of the MITTS  Securities.  Some of these factors
interrelate  in complex  ways;  as a result,  the effect of any one factor may
offset or magnify  the  effect of another  factor.  The  following  paragraphs
describe  the  expected  impact on the trading  value of the MITTS  Securities
given a change in a specific  factor,  assuming  all other  conditions  remain
constant.

     o     The value of the  index  We expect  that the  market  value  of the
           MITTS  Securities will depend  substantially on the amount by which
           the index does or does not exceed 8,594. If you choose to sell your
           MITTS Securities when the value of the index exceeds 8,594, you may
           receive substantially less than the amount that would be payable at
           maturity based on that index value because of the expectation  that
           the index will  continue  to  fluctuate  until  shortly  before the
           maturity date when the average value of the index is determined. If
           you  choose to sell  your  MITTS  Securities  when the value of the
           index is below 8,594,  you may receive less than the $10  principal
           amount  per unit of  MITTS  Securities.  In  general,  rising  U.S.
           dividend rates,  or dividends per share,  may increase the value of
           the index while falling U.S.  dividend rates may decrease the value
           of the  index.  Political,  economic  and other  developments  that
           affect the stocks underlying the index may also affect the value of
           the index and the value of the MITTS Securities.

     o     Interest  rates.  Because we will  pay, at a minimum, the principal
           amount per unit of MITTS  Securities  at  maturity,  we expect that
           changes in  interest  rates will  affect the  trading  value of the
           MITTS Securities.  In general, if U.S. interest rates increase,  we
           expect that the trading value of the MITTS Securities will decrease
           and,  conversely,  if U.S.  interest rates decrease,  we expect the
           trading value of the MITTS Securities will increase. Interest rates
           may also affect the U.S.  economy  and,  in turn,  the value of the
           index.  Rising interest rates may lower the value of the index and,
           thus, may lower the value of the MITTS Securities. Falling interest
           rates may increase the value of the index and,  thus,  may increase
           the value of the MITTS Securities.

     o     Volatility  of the index.  Volatility is  the term used to describe
           the size and frequency of market  fluctuations.  Generally,  if the
           volatility of the index increases, we expect that the trading value
           of the MITTS  Securities  will  increase.  If the volatility of the
           index  decreases,  we expect  that the  trading  value of the MITTS
           Securities will decrease.

     o     Time remaining  to maturity.  We  anticipate   that  prior  to  the
           maturity of the MITTS Securities, the MITTS Securities may trade at
           a value above that which  would be  expected  based on the level of
           interest rates and the index.  This difference will reflect a "time
           premium"  due to  expectations  concerning  the  value of the index
           during the period prior to January 14, 2003, the stated maturity of
           the MITTS Securities. However, as the time remaining to maturity of
           the MITTS  Securities  decreases,  we expect that this time premium
           will decrease, lowering the trading value of the MITTS Securities.

     o     Dividend yields.  If  dividend yields on the stocks  comprising the
           index  increase,  we expect that the value of the MITTS  Securities
           will  decrease.   Conversely,  if  dividend  yields  on  the  stock
           comprising  the index  decrease,  we  expect  that the value of the
           MITTS Securities will increase.

     o     Changes   in our  credit  ratings.  Our  credit   ratings   are  an
           assessment  of our  ability to pay our  obligations.  Consequently,
           real or  anticipated  changes in our credit  ratings may affect the
           trading value of the MITTS Securities. However, because your return
           on your MITTS  Securities is dependent  upon factors in addition to
           our ability to pay our obligations under the MITTS Securities, such
           as the  percentage  increase in the value of the index at maturity,
           an  improvement  in our credit  ratings will not reduce  investment
           risks related to the MITTS Securities.

         It is important for you to  understand  that the impact of one of the
factors  specified  above,  such as an increase in interest rates,  may offset
some or all of any  increase  in the  trading  value of the  MITTS  Securities
attributable to another factor, such as an increase in the index value.

         In general,  assuming  all  relevant  factors are held  constant,  we
expect that the effect on the trading value of the MITTS Securities of a given
change in most of the factors  listed above will be less if it occurs later in
the term of the MITTS  Securities than if it occurs earlier in the term of the
MITTS Securities except that we expect that the effect on the trading value of
the MITTS  Securities  of a given  increase  in the value of the index will be
greater  if it  occurs  later in the term of the MITTS  Securities  than if it
occurs earlier in the term of the MITTS Securities.

AMOUNTS PAYABLE ON THE MITTS SECURITIES MAY BE LIMITED BY STATE LAW.

         New York  State  laws  govern  the  indenture  under  which the MITTS
Securities  are  issued.  New York has  usury  laws that  limit the  amount of
interest that can be charged and paid on loans, which includes debt securities
like the MITTS  Securities.  Under  present New York law,  the maximum rate of
interest is 25% per annum on a simple interest basis. This limit may not apply
to debt securities in which $2,500,000 or more has been invested.

         While we believe  that New York law would be given  effect by a state
or Federal court sitting outside of New York, many other states also have laws
that  regulate  the  amount of  interest  that may be charged to and paid by a
borrower.  We will  promise,  for the  benefit  of the  holders  of the  MITTS
Securities,  to the extent  permitted  by law,  not to  voluntarily  claim the
benefits of any laws concerning usurious rates of interest.

PURCHASES AND SALES BY US AND OUR AFFILIATES MAY AFFECT YOUR RETURN.

         We and our  affiliates  may from time to time buy or sell the  stocks
underlying  the  Index  for  our  own  accounts  for  business  reasons  or in
connection  with hedging our  obligations  under the MITTS  Securities.  These
transactions could affect the price of these stocks and the value of the index
in a manner that would be adverse to your investment.

POTENTIAL CONFLICTS OF INTEREST.

         Our subsidiary, Merrill Lynch, Pierce, Fenner & Smith Incorporated or
MLPF&S,  is our agent for the purposes of  calculating  the value of the index
and the amount  payable to you at maturity.  In some  circumstances,  MLPF&S's
role as our subsidiary and its  responsibilities  as calculation agent for the
MITTS  Securities  could give rise to conflicts of interests.  These conflicts
could occur, for instance,  in connection with its determination as to whether
the value of the index can be  calculated  on a particular  trading day, or in
connection  with judgments that it would be required to make in the event of a
discontinuance    of   the   index.    See    "Description    of   the   MITTS
Securities--Adjustments   to  the  Index;   Market   Disruption   Events"  and
"--Discontinuance  of the Index" in this  prospectus.  MLPF&S is  required  to
carry  out its  duties  as  calculation  agent in good  faith  and  using  its
reasonable  judgment.  However,  you should be aware  that  because we control
MLPF&S, potential conflicts of interest could arise.

         We have entered into an arrangement  with one of our  subsidiaries to
hedge the market risks  associated  with our  obligation to pay amounts due at
maturity on the MITTS Securities.  This subsidiary expects to make a profit in
connection with this  arrangement.  We did not seek  competitive bids for this
arrangement from unaffiliated parties.

OTHER CONSIDERATIONS.

         You should  reach an  investment  decision  with  regard to the MITTS
Securities  only after  carefully  considering  the  suitability  of the MITTS
Securities in light of your particular circumstances.

         You should also  consider  the tax  consequences  of investing in the
MITTS Securities and should consult with your tax adviser.

<PAGE>



                           MERRILL LYNCH & CO., INC.

         We  are a  holding  company  that,  through  our  U.S.  and  non-U.S.
subsidiaries  and  affiliates  such as Merrill Lynch,  Pierce,  Fenner & Smith
Incorporated,  Merrill Lynch Government Securities Inc., Merrill Lynch Capital
Services,  Inc.,  Merrill Lynch  International,  Merrill Lynch Capital Markets
Bank Ltd., Merrill Lynch Asset Management L.P. and Merrill Lynch Mercury Asset
Management,  provides investment,  financing, advisory, insurance, and related
products on a global basis, including:

o  securities brokerage, trading and underwriting;

o  investment banking, strategic services, including mergers and 
   acquisitions and other corporate finance advisory activities;

o  asset management and other investment advisory and recordkeeping services;

o  trading and brokerage of swaps, options, forwards, futures and other 
   derivatives;

o  securities clearance services;

o  equity, debt and economic research;

o  banking, trust and lending services, including mortgage lending and related 
   services; and

o  insurance sales and underwriting services.

We provide these  products and services to a wide array of clients,  including
individual   investors,   small   businesses,    corporations,    governments,
governmental agencies and financial institutions.

         Our principal  executive office is located at World Financial Center,
North Tower, 250 Vesey Street,  New York, New York 10281; our telephone number
is (212) 449-1000.

         If you  want  to find  more  information  about  us,  please  see the
sections entitled "Where You Can Find More Information" and  "Incorporation of
Information We File with the SEC" in this prospectus.

         In this prospectus, "ML&Co.", "we", "us" and "our" refer specifically
to Merrill Lynch & Co., Inc., the holding company. ML&Co. is the issuer of the
MITTS Securities described in this prospectus.



<PAGE>


                      RATIO OF EARNINGS TO FIXED CHARGES

         In 1998, we acquired the outstanding shares of Midland Walwyn,  Inc.,
in a  transaction  accounted  for  as a  pooling-of-interests.  The  following
information for the fiscal years 1994 through 1997 has been restated as if the
two entities had always been combined.

         The following  table sets forth our historical  ratios of earnings to
fixed charges for the periods indicated:

                            Year Ended Last Friday in December
                            
                            1994     1995     1996     1997      1998
                            -----------------------------------------
Ratio of earnings to fixed   
charges(a)................   1.2      1.2      1.2      1.2      1.1

- ----------
(a)   The effect of combining Midland Walwyn did not change the ratios reported
      for the fiscal years 1994 through 1997.

         For the purpose of calculating  the ratio of earnings to fixed charges,
"earnings"  consist of earnings from continuing  operations  before income taxes
and  fixed  charges,  excluding  capitalized  interest  and  preferred  security
dividend  requirements.  "Fixed charges" consist of interest costs, the interest
factor in rentals,  amortization  of debt  issuance  costs,  preferred  security
dividend requirements of subsidiaries, and capitalized interest.



<PAGE>


                      DESCRIPTION OF THE MITTS SECURITIES

         On December 23, 1997, ML&Co.  issued an aggregate principal amount of
$90,000,000 or 9,000,000 units of the MITTS Securities.


         The  MITTS  Securities  were  issued  as  a  series  of  senior  debt
securities  under the 1983  Indenture  which is more fully  described  in this
prospectus.


         The MITTS Securities will mature on January 14, 2003.

         While at maturity a beneficial owner of a MITTS Security will receive
the principal  amount of the MITTS Security plus the  Supplemental  Redemption
Amount described below, if any, ML&Co. will make no other payment of interest,
periodic or otherwise. See "- Payment at Maturity" below.

         The MITTS  Securities  are not subject to redemption by ML&Co.  or at
the option of any beneficial owner before maturity.  Upon the occurrence of an
Event of Default with respect to the MITTS  Securities,  beneficial  owners of
the MITTS Securities may accelerate the maturity of the MITTS  Securities,  as
described under "- Events of Default and Acceleration" and "Other Terms Events
of Default" in this prospectus.

         The MITTS Securities were issued in denominations of whole units.

Payment at Maturity

         At the maturity date, a beneficial  owner of a MITTS Security will be
entitled to receive the  principal  amount of each unit plus the  Supplemental
Redemption  Amount,  if  any,  all as  provided  below.  If  the  Supplemental
Redemption  Amount is not greater  than zero,  a  beneficial  owner of a MITTS
Security  will be entitled to receive only the  principal  amount of its MITTS
Securities.

         The  "Supplemental  Redemption  Amount" for a MITTS  Security will be
determined by the calculation agent and will equal:

<TABLE>
<S>                                                    <C>  <C>                                                           
Principal Amount of each MITTS Security ($10 per unit)  X    Ending Index Value -  Benchmark Index Value
                                                             -------------------------------------------
                                                                        Benchmark Index Value
</TABLE>


    

provided, however, that in no event will the Supplemental Redemption Amount be
less than zero.

   
         The "Benchmark Index Value" equals 8,594, which was determined on the
pricing date by  multiplying  7,957.41,  the value of the index on the pricing
date by 108%.

         The "Ending  Value" will be determined by the  calculation  agent and
will equal the average or  arithmetic  mean of the  closing  values of the Dow
Jones Industrial  Average Index (the "Index")  determined on each of the first
five Calculation Days during the Calculation  Period.  If there are fewer than
five  Calculation  Days,  then the  Ending  Value  will  equal the  average or
arithmetic mean of the closing values of the Index on these  Calculation Days,
and if there is only one Calculation Day, then the Ending Value will equal the
closing value of the Index on that  Calculation  Day. If no  Calculation  Days
occur  during the  Calculation  Period,  then the Ending  Value will equal the
closing value of the Index determined on the last scheduled Index Business Day
in the Calculation Period, regardless of the occurrence of a Market Disruption
Event on that day.

         The  "Calculation  Period"  means the period from and  including  the
seventh scheduled Index Business Day before the maturity date to and including
the second scheduled Index Business Day before the maturity date.

         "Calculation Day" means any Index Business Day during the Calculation
Period on which a Market Disruption Event has not occurred.

         An "Index  Business  Day" is a day on which the NYSE and the AMEX are
open for trading and the Index or any Successor  Index,  as defined on page 10
below, is calculated and published.

         All determinations made by the calculation agent shall be at the sole
discretion  of the  calculation  agent  and,  absent  a  determination  by the
calculation  agent of a manifest  error,  shall be conclusive for all purposes
and binding on ML&Co. and beneficial owners of the MITTS Securities.
    



<PAGE>


Hypothetical Returns

   
         The following table illustrates,  for a range of hypothetical  Ending
Index Values:

     o   the percentage change from the starting index value to the Ending 
         Index Value;

     o   the total amount payable  per unit of MITTS Securities;

     o    the total rate of return  on the MITTS Securities;

     o    the pretax annualized rate of return  on the MITTS Securities; and

     o    the  pretax   annualized   rate  of  return  of  the  stocks
          underlying the Index,  which  includes an assumed  aggregate
          dividend yield of 1.72% per annum,  as more fully  described
          below.
    


   
<TABLE>
<CAPTION>

                                       Total Amount                      Pretax                             
                                        Payable at      Total Rate    Annualized                           
                     Percentage     Maturity per $10       of            Rate         Pretax Annualized
  Hypothetical         Change           Principal       Return on     of Return on     Rate of Return of
     Ending       Over the Starting  Amount of MITTS    the MITTS      the MITTS     Stocks Underlying the
   Index Value       Index Value        Securities      Securities    Securities(1)       Index(1)(2)
   -----------    -----------------  ----------------   ----------    --------------     -----------------
    <S>                <C>                <C>             <C>            <C>               <C>

     3,182.96          -60.00%            $10.00          0.00%           0.00%            - 14.21%
     3,978.71          -50.00%            $10.00          0.00%           0.00%            - 10.67%
     4,774.45          -40.00%            $10.00          0.00%           0.00%            - 7.63% 
     5,570.19          -30.00%            $10.00          0.00%           0.00%            - 4.95% 
     6,365.93          -20.00%            $10.00          0.00%           0.00%             -2.55% 
     7,161.67          -10.00%            $10.00          0.00%           0.00%             -0.37% 
     7,957.41(3)         0.00%            $10.00          0.00%           0.00%              1.64% 
     8,753.15           10.00%            $10.19          1.85%           0.36%              3.49% 
     9,548.89           20.00%            $11.11          11.11%          2.09%              5.22% 
    10,344.63           30.00%            $12.04          20.37%          3.70%              6.84% 
    11,140.37           40.00%            $12.96          29.63%          5.19%              8.36% 
    11,936.12           50.00%            $13.89          38.89%          6.59%              9.80% 
    12,731.86           60.00%            $14.81          48.15%          7.92%             11.17% 
    13,527.60           70.00%            $15.74          57.41%          9.16%             12.48% 
    14,323.34           80.00%            $16.67          66.67%         10.35%             13.72% 
    15,119.08           90.00%            $17.59          75.93%         11.47%             14.91% 
    15,914.82          100.00%            $18.52          85.19%         12.55%             16.05% 
    16,710.56          110.00%            $19.44          94.44%         13.57%             17.15% 
    17,506.30          120.00%            $20.37         103.70%         14.56%             18.21% 


</TABLE>
    

- ----------

(1)  The  annualized  rates of return  specified  in the  preceding  table are
     calculated on a semiannual bond equivalent basis.
   
(2)  This rate of return assumes:
     (a)  an investment of a fixed amount in the stocks  underlying  the Index
          with the  allocation of an amount  reflecting  the current  relative
          weights of the stocks in the Index;
     (b)  a percentage change in the aggregate price of the stocks that equals
          the percentage  change in the Index from the starting index value to
          the relevant hypothetical Ending Index Value;
     (c)  a constant  dividend  yield of 1.72% per annum,  paid quarterly from
          the date of initial  delivery  of MITTS  Securities,  applied to the
          value of the Index at the end of each  quarter  assuming  this value
          increases or decreases linearly from the starting index value to the
          hypothetical Ending Index Value;
     (d)  no transaction fees or expenses;
     (e)  the term of the MITTS  Securities is from December 23, 1997 to 
          January 14, 2003;  and 
     (f)  a final  Index  value equal to the  hypothetical  Ending  Index
          Value. The aggregate dividend yield of the stocks underlying the 
          Index as of December 17, 1997 was approximately 1.72%.
 (3)  The starting index value.

         The above figures are for purposes of  illustration  only. The actual
Supplemental  Redemption Amount received by investors and the respective total
and pretax annualized rate of return will depend entirely on the actual Ending
Index  Value  determined  by  the  calculation   agent  as  provided  in  this
prospectus.
    

Adjustments to the Index; Market Disruption Events

   
         If at any time the method of calculating the Index, or its value , is
changed in any material respect,  or if the Index is in any other way modified
so that the Index does not, in the opinion of the  calculation  agent,  fairly
represent  the value of the Index had the  changes or  modifications  not been
made,  then,  from and after that time, the  calculation  agent shall,  at the
close of business in New York,  New York,  on each date that the closing value
with  respect  to  the  Ending  Index  Value  is to be  calculated,  make  any
adjustments  as, in the good faith judgment of the calculation  agent,  may be
necessary  in order to arrive  at a  calculation  of a value of a stock  index
comparable to the Index as if any changes or modifications  had not been made,
and  calculate  the closing  value with  reference to the Index,  as adjusted.
Accordingly,  if the method of  calculating  the Index is modified so that the
value of the Index is a fraction  or a multiple  of what it would have been if
it had not been  modified for example,  due to a split in the Index,  then the
calculation  agent shall adjust the Index in order to arrive at a value of the
Index as if it had not been  modified  for  example,  as if the  split had not
occurred.

         "Market  Disruption  Event" means either of the following  events; as
determined by the calculation agent:

         (a) the  suspension  or material  limitation on trading for more than
two hours of trading,  or during the one-half hour period  preceding the close
of trading on the  applicable  exchange,  in each case,  in 20% or more of the
stocks which then comprise the Index; or

         (b) the  suspension or material  limitation,  in each case,  for more
than two hours of trading,  whether by reason of movements in price  otherwise
exceeding levels permitted by the relevant exchange or otherwise, in

                  (1)   futures contracts related to the Index, or options on  
          these futures contracts, which are traded on any major  U.S. 
          exchange or

                  (2)   option contracts related to the Index which are traded
          on any major  U.S. exchange.

         For the  purposes  of clause (a) above,  any  limitations  on trading
during significant market fluctuations under New York Stock Exchange Rule 80A,
or any applicable rule or regulation enacted or promulgated by the NYSE or any
other self  regulatory  organization or the SEC of similar scope as determined
by the calculation agent, will be considered "material".
    

         For the purposes of this  definition,  a limitation on the hours in a
trading  day and/or  number of days of trading  will not  constitute  a Market
Disruption  Event  if it  results  from an  announced  change  in the  regular
business hours of the relevant exchange.

Discontinuance of the Index

   
         If Dow Jones  discontinues  publication of the Index and Dow Jones or
another entity  publishes a successor or substitute index that the calculation
agent determines,  in its sole discretion, to be comparable to the Index, this
index being referred to in this prospectus as a "Successor Index",  then, upon
the calculation  agent's  notification of its determination to the trustee and
ML&Co.,   the  calculation  agent  will  substitute  the  Successor  Index  as
calculated by Dow Jones or any other entity for the Index.  Upon any selection
by the calculation agent of a Successor Index, ML&Co. shall cause notice to be
given to holders of the MITTS Securities.

         If Dow Jones  discontinues  publication  of the Index and a Successor
Index is not selected by the  calculation  agent or is no longer  published on
any of the Calculation Days, the value to be substituted for the Index for any
Calculation  Day used to  calculate  the  Supplemental  Redemption  Amount  at
maturity  will  be  a  value  computed  by  the  calculation  agent  for  each
Calculation  Day in accordance  with the procedures last used to calculate the
Index  before any  discontinuance.  If a  Successor  Index is  selected or the
calculation  agent  calculates  a  value  as a  substitute  for the  Index  as
described  below,  the Successor  Index or value shall be substituted  for the
Index for all purposes, including for purposes of determining whether a Market
Disruption  Event exists.  If the  calculation  agent  calculates a value as a
substitute for the Index,  "Index Calculation Day" shall mean any day on which
the calculation agent is able to calculate a value.

         If Dow Jones discontinues  publication of the Index before the period
during which the  Supplemental  Redemption  Amount is to be determined and the
calculation  agent  determines  that no  Successor  Index is available at that
time, then on each Business Day until the earlier to occur of:
    

o             the determination of the Ending Index Value and

   
o             a  determination  by the  calculation  agent shall determine the
              value  that  would  be  used  in  computing   the   Supplemental
              Redemption Amount as described in the preceding  paragraph as if
              that day were a Calculation Day.

the calculation agent will cause notice of each value to be published not less
often than once each month in The Wall Street Journal (the "WSJ"),  or another
newspaper of general circulation,  and arrange for information with respect to
these  values  to  be  made  available  by  telephone.  Notwithstanding  these
alternative  arrangements,  discontinuance of the publication of the Index may
adversely affect trading in the MITTS Securities.
    

Events of Default and Acceleration

   
         If an Event of  Default  with  respect  to any MITTS  Securities  has
occurred and is  continuing,  the amount  payable to a  beneficial  owner of a
MITTS Security upon any acceleration  permitted by the MITTS Securities,  with
respect to each $10 principal amount of the MITTS Securities, will be equal to
the  principal  amount  and  the  Supplemental   Redemption  Amount,  if  any,
calculated as though the date of early repayment were the stated maturity date
of the MITTS Securities.  See "Description of the MITTS Securities--Payment at
Maturity".  If a bankruptcy  proceeding is commenced in respect of ML&Co., the
claim  of the  beneficial  owner of a MITTS  Security  may be  limited,  under
Section  502(b)(2)  of Title 11 of the United  States Code,  to the  principal
amount of the MITTS Security plus an additional amount of contingent  interest
calculated as though the date of the  commencement  of the proceeding were the
maturity date of the MITTS Securities.

         In case of  default  in  payment  at the  maturity  date of the MITTS
Securities,  whether at their stated maturity or upon  acceleration,  from and
after the maturity date the MITTS Securities shall bear interest, payable upon
demand of their  beneficial  owners , at the rate of 6.18% per  annum,  to the
extent  that  payment of any  interest  shall be legally  enforceable,  on the
unpaid amount due and payable on any date in accordance  with the terms of the
MITTS  Securities  to the date  payment  of any  amount  has been made or duly
provided for.

 Global Securities

          Description of the Global Securities

         Beneficial  owners of the MITTS  Securities may not receive  physical
delivery  of the MITTS  Securities  nor may they be entitled to have the MITTS
Securities  registered  in their names.  The MITTS  Securities  currently  are
represented by one or more fully  registered  global  securities.  Each global
security was deposited with, or on behalf of, The Depository  Trust Company or
DTC,  (DTC,  together with any  successor to DTC,  being a  "depositary"),  as
depositary,  registered in the name of Cede & Co., DTC's partnership  nominee.
Unless and until it is exchanged in whole or in part for MITTS  Securities  in
definitive  form, no global  security may be transferred  except as a whole by
the  depositary  to a  nominee  of  the  depositary  or by a  nominee  of  the
depositary to the  depositary or another  nominee of the  depositary or by the
depositary  or any a nominee to a successor of the  depositary or a nominee of
that successor.

         So long as DTC, or its  nominee,  is a  registered  owner of a global
security,  DTC or its nominee, as the case may be, will be considered the sole
owner or holder of the MITTS  Securities  represented by a global security for
all  purposes  under  the  1983  Indenture.  Except  as  provided  below,  the
beneficial  owners of the MITTS  Securities  represented by a global  security
will not be entitled to have the MITTS  Securities  represented  by the global
security registered in their names, will not receive or be entitled to receive
physical  delivery of the MITTS  Securities in definitive form and will not be
considered  the  owners or holders  under the 1983  Indenture,  including  for
purposes of receiving any reports delivered by ML&Co. or the trustee under the
1983  Indenture.  Accordingly,  each person owning a beneficial  interest in a
global  security must rely on the procedures of DTC and, if that person is not
a participant of DTC on the procedures of the  participant  through which that
person owns its  interest,  to exercise  any rights of a holder under the 1983
Indenture.  ML&Co.  understands that under existing industry practices, in the
event  that  ML&Co.  requests  any  action  of  holders  or that an owner of a
beneficial  interest in a global  security  desires to give or take any action
which a holder is entitled to give or take under the 1983 Indenture, DTC would
authorize the participants  holding the relevant beneficial  interests to give
or take any action,  and the participants  would authorize  beneficial  owners
owning through those  participants  to give or take action or would  otherwise
act upon the  instructions  of  beneficial  owners.  Conveyance of notices and
other  communications  by DTC to  participants,  by  participants  to indirect
participants  and by  participants  and indirect  participants  to  beneficial
owners will be governed by arrangements  among them,  subject to any statutory
or regulatory requirements as may be in effect from time to time.

          DTC Procedures
    

         The following is based on information furnished by DTC:

   
         DTC is the securities depositary for the MITTS Securities.  The MITTS
Securities were issued as fully registered  securities  registered in the name
of Cede & Co., DTC's partnership  nominee. One or more fully registered global
securities  were issued for the MITTS  Securities in the  aggregate  principal
amount of the MITTS Securities, and were deposited with DTC.

         DTC is a  limited-purpose  trust company organized under the New York
Banking  Law, a  "banking  organization"  within  the  meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing  corporation"
within the meaning of the New York Uniform  Commercial  Code,  and a "clearing
agency"  registered  under to the  provisions of Section 17A of the Securities
and  Exchange  Act  of  1934,  as  amended.  DTC  holds  securities  that  its
participants  deposit  with DTC. DTC also  facilitates  the  settlement  among
participants  of securities  transactions,  such as transfers and pledges,  in
deposited  securities  through electronic  computerized  book-entry changes in
participants' accounts,  thereby eliminating the need for physical movement of
securities certificates. Direct participants of DTC include securities brokers
and  dealers,   banks,  trust  companies,   clearing  corporations  and  other
organizations.  DTC is owned by a number of its direct participants and by the
NYSE, the AMEX and the National Association of Securities Dealers, Inc. Access
to DTC's  system is also  available to others such as  securities  brokers and
dealers,  banks and trust companies that clear through or maintain a custodial
relationship  with a direct  participant,  either directly or indirectly.  The
rules applicable to DTC and its participants are on file with the SEC.

         Purchases of MITTS  Securities  under DTC's system must be made by or
through  direct  participants,  which  will  receive  a credit  for the  MITTS
Securities on DTC's records.  The ownership  interest of each beneficial owner
is in turn to be recorded on the records of direct and indirect  participants.
Beneficial  owners will not  receive  written  confirmation  from DTC of their
purchase,  but beneficial owners are expected to receive written confirmations
providing details of the transaction,  as well as periodic statements of their
holdings,  from the direct participants or indirect participants through which
the  beneficial  owner  entered into the  transaction.  Transfers of ownership
interests in the MITTS  Securities are to be  accomplished  by entries made on
the books of participants acting on behalf of beneficial owners.

         To facilitate  subsequent  transfers,  all MITTS Securities deposited
with DTC are registered in the name of DTC's partnership  nominee,  Cede & Co.
The deposit of MITTS Securities with DTC and their registration in the name of
Cede & Co. effect no change in beneficial  ownership.  DTC has no knowledge of
the actual beneficial  owners of the MITTS  Securities;  DTC's records reflect
only the  identity  of the direct  participants  to whose  accounts  the MITTS
Securities are credited,  which may or may not be the beneficial  owners.  The
participants will remain  responsible for keeping account of their holdings on
behalf of their customers.

         Conveyance  of  notices  and  other  communications  by DTC to direct
participants,  by direct participants to indirect participants,  and by direct
and  indirect   participants   to  beneficial   owners  will  be  governed  by
arrangements among them,  subject to any statutory or regulatory  requirements
as may be in effect from time to time.

         Neither DTC nor Cede & Co. will  consent or vote with  respect to the
MITTS Securities.  Under its usual  procedures,  DTC mails an omnibus proxy to
ML&Co. as soon as possible after the applicable record date. The omnibus proxy
assigns Cede & Co.'s consenting or voting rights to those direct  participants
identified in a listing  attached to the omnibus  proxy to whose  accounts the
MITTS  Securities  are  credited  on the record date  identified  in a listing
attached to the omnibus proxy.

         Principal,  premium, if any, and/or interest, if any, payments on the
MITTS  Securities  will be made in immediately  available  funds to DTC. DTC's
practice is to credit direct participants'  accounts on the applicable payment
date in accordance with their  respective  holdings shown on the  depositary's
records  unless DTC has reason to believe that it will not receive  payment on
that date.  Payments by participants to beneficial  owners will be governed by
standing instructions and customary practices,  as is the case with securities
held for the  accounts of customers  in bearer form or  registered  in "street
name", and will be the  responsibility  of the participant and not of DTC, the
trustee or ML&Co., subject to any statutory or regulatory  requirements as may
be in effect from time to time. Payment of principal,  premium, if any, and/or
interest,  if any,  to DTC is the  responsibility  of ML&Co.  or the  trustee,
disbursement of payments to direct  participants is the responsibility of DTC,
and disbursement of payments to the beneficial owners is the responsibility of
direct and indirect participants.

          Exchange for Certificated Securities

          If:


          o   the depositary is at any time unwilling or unable to continue as 
              depositary and a successor depositary is not appointed by ML&Co.
              within 60 days,

          o   ML&Co. executes and delivers to the trustee a company order to 
              the effect that the global securities shall be exchangeable, or

          o   an Event of Default under the 1983 Indenture has occurred and is 
              continuing with respect to the MITTS Securities,

the global  securities will be exchangeable for MITTS Securities in definitive
form  of  like  tenor  and  of  an  equal  aggregate   principal   amount,  in
denominations  of $10 and  integral  multiples of $10.  The  definitive  MITTS
Securities  will be  registered in the name or names as the  depositary  shall
instruct  the  trustee.  It is expected  that  instructions  may be based upon
directions  received  by the  depositary  from  participants  with  respect to
ownership of beneficial interests in the global securities.

         In addition,  ML&Co.  may decide to discontinue  use of the system of
book-entry  transfers through the depositary.  In that event, MITTS Securities
in definitive form will be printed and delivered.

         The  information in this section  concerning DTC and DTC's system has
been  obtained  from sources that ML&Co.  believes to be reliable,  but ML&Co.
takes no responsibility for its accuracy.

    

Same-Day Settlement and Payment

   
         ML&Co.  will make all  payments  of  principal  and the  Supplemental
Redemption Amount, if any, in immediately available funds so long as the MITTS
Securities are maintained in book-entry form.
    


                                   THE INDEX

   
         Unless  otherwise  stated,  all information in this prospectus on the
Index is derived  from Dow Jones or other  publicly  available  sources.  This
information  reflects the policies of Dow Jones as stated in these sources and
these  policies  are  subject  to change by Dow  Jones.  Dow Jones is under no
obligation to continue to publish the Index and may discontinue publication of
the Index at any time.

         The Index is a  price-weighted  index,  meaning  that the weight of a
component  stock in the Index is based on its price per share  rather than the
total market  capitalization of the issuer of a component stock,  comprised of
30 common  stocks  chosen by the editors of the WSJ as  representative  of the
broad market of U.S. industry. The corporations  represented in the Index tend
to be  leaders  within  their  respective  industries  and  their  stocks  are
typically widely held by individuals and institutional  investors.  Changes in
the  composition  of the Index are made  entirely  by the  editors  of the WSJ
without consultation with the corporations represented in the Index, any stock
exchange, any official agency or ML&Co.. Changes to the common stocks included
in the Index tend to be made  infrequently.  Historically,  most substitutions
have been the result of mergers, but from time to time, changes may be made to
achieve what the editors of the WSJ deem to be a more accurate  representation
of the broad market of U.S.  industry.  In choosing a new  corporation for the
Index,  the editors of the WSJ look for leading  industrial  companies  with a
successful  history of growth and wide interest among  investors.  The WSJ may
change  the  component  stocks  of the Index at any time for any  reason.  Dow
Jones,  publisher  of the  WSJ,  is not  affiliated  with  ML&Co.  and has not
participated in any way in the creation of the MITTS Securities.
    

         The  Index  initially  consisted  of 12 common  stocks  and was first
published  in the WSJ in 1896.  The Index was  increased  to include 20 common
stocks in 1916 and to 30 common stocks in 1928. The number of common stocks in
the  Index has  remained  at 30 since  1928,  and,  in an  effort to  maintain
continuity,  the constituent  corporations  represented in the Index have been
changed on a relatively infrequent basis.

   
         The value of the Index is the sum of the primary  exchange  prices of
each of the 30 common stocks included in the Index,  divided by a divisor that
is  designed  to provide a  meaningful  continuity  in the value of the Index.
Because the Index is price-weighted,  stock splits or changes in the component
stocks could  result in  distortions  in the Index value.  In order to prevent
these  distortions  related to  extrinsic  factors,  the divisor is changed in
accordance  with a  mathematical  formula that reflects  adjusted  proportions
within the Index.  The current  divisor of the Index is published daily in the
WSJ and other publications.  In addition,  other statistics based on the Index
may be found in a variety of publicly available sources.

         ML&Co. or its affiliates may presently or from time to time engage in
business with one or more of the issuers of the component stocks of the Index,
including extending loans to, or making equity investments in these issuers or
providing advisory services to these issuers, including merger and acquisition
advisory  services.  In the course of this business,  ML&Co. or its affiliates
may acquire non-public information with respect to these issuers.  ML&Co. does
not make any  representation to any purchaser of MITTS Securities with respect
to any matters whatsoever relating to these issuers. Any prospective purchaser
of MITTS  Securities  should  undertake an  independent  investigation  of the
issuers of the component stocks of the Index as in its judgment is appropriate
to make an  informed  decision  with  respect  to an  investment  in the MITTS
Securities.  The  composition  of the Index does not reflect any investment or
sell recommendations of ML&Co. or its affiliates.
    


                                  OTHER TERMS

   
         ML&Co.  issued  the  MITTS  Securities  as a series  of  senior  debt
securities under the 1983 Indenture, dated as of April 1, 1983, as amended and
restated,  between ML&Co. and The Chase Manhattan Bank, as trustee.  A copy of
the 1983  Indenture  is  filed as an  exhibit  to the  registration  statement
relating  to the MITTS  Securities  of which this  prospectus  is a part.  The
following  summaries of the material  provisions of the 1983 Indenture are not
complete and are subject to, and qualified in their  entirety by reference to,
all provisions of the 1983  Indenture,  including the  definitions of terms in
the 1983 Indenture.

         ML&Co.  may issue series of senior debt  securities from time to time
under the 1983 Indenture, without limitation as to aggregate principal amount,
in one or more  series  and upon  terms as  ML&Co.  may  establish  under  the
provisions of the 1983 Indenture.

         The 1983  Indenture  and the MITTS  Securities  are  governed  by and
construed in accordance with the laws of the State of New York.

         ML&Co.  may issue senior debt  securities  with terms  different from
those of senior debt securities previously issued, and issue additional senior
debt securities of a previously issued series of senior debt securities.

         The senior debt  securities  are  unsecured and rank equally with all
other unsecured and  unsubordinated  indebtedness of ML&Co.  However,  because
ML&Co. is a holding company, the rights of ML&Co. and its creditors, including
the holders of senior debt  securities,  to participate in any distribution of
the  assets  of any  subsidiary  upon its  liquidation  or  reorganization  or
otherwise  are  necessarily  subject to the prior  claims of  creditors of the
subsidiary,  except to the extent that a bankruptcy court may recognize claims
of ML&Co.  itself as a creditor of the  subsidiary . In  addition,  dividends,
loans and advances from certain subsidiaries,  including MLPF&S, to ML&Co. are
restricted by net capital requirements under the Exchange Act, and under rules
of exchanges and other regulatory bodies.
    

Limitations Upon Liens

   
         ML&Co. may not, and may not permit any majority-owned  subsidiary to,
create,  assume,  incur or permit to exist any indebtedness for borrowed money
secured  by a  pledge,  lien or other  encumbrance,  other  than  those  liens
specifically  permitted  by the 1983  Indenture,  on the  Voting  Stock  owned
directly or indirectly by ML&Co. of any majority-owned subsidiary,  other than
a  majority-owned  subsidiary  which,  at the  time of the  incurrence  of the
secured  indebtedness,  has a net worth of less than  $3,000,000,  unless  the
outstanding  senior debt  securities are secured  equally and ratably with the
secured indebtedness.

         "Voting  Stock" is defined in the 1983  Indenture as the stock of the
class or classes having general voting power under ordinary  circumstances  to
elect at least a majority of the board of directors, managers or trustees of a
corporation provided that, for the purposes of the 1983 Indenture,  stock that
carries only the right to vote  conditionally on the occurrence of an event is
not considered voting stock whether or not the event has happened.
    


Limitation on Disposition of Voting Stock of, and Merger and Sale of Assets by,
MLPF&S

   
         ML&Co.  may not sell,  transfer  or  otherwise  dispose of any voting
stock of MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of
its voting  stock,  unless,  after giving  effect to any  transaction,  MLPF&S
remains a Controlled Subsidiary.

         "Controlled  Subsidiary"  is defined in the 1983  Indenture to mean a
corporation  more than 80% of the outstanding  shares of voting stock of which
are owned directly or indirectly by ML&Co.

         In addition,  ML&Co. may not permit MLPF&S to:

         o   merge or consolidate, unless the surviving company is a Controlled
             Subsidiary, or
    

         o   convey or transfer its properties and assets substantially as an
             entirety, except to one or more Controlled Subsidiaries.

Merger and Consolidation

   
         ML&Co.  may  consolidate or merge with or into any other  corporation
and ML&Co. may sell, lease or convey all or substantially all of its assets to
any corporation, provided that:

     o     the  resulting   corporation,   if  other  than  ML&Co.,   is  a
           corporation  organized and existing under the laws of the United
           States of America or any U.S.  state and assumes all of ML&Co.'s
           obligations to:

           o    pay any amounts due and payable or deliverable with respect to
                all the senior debt securities; and

           o    perform and observe all of ML&Co.'s obligations under the 1983
                Indenture, and

     o     ML&Co. or the successor corporation, as the case may be, is not,
           immediately  after any consolidation or merger, in default under
           the 1983 Indenture.
    

Modification and Waiver

   
         ML&Co.  and the trustee may modify and amend the 1983  Indenture with
the  consent  of  holders  of at least  66 2/3% in  principal  amount  of each
outstanding series of senior debt securities  affected.  However,  without the
consent of each holder of any outstanding  senior debt security  affected,  no
amendment or modification to the 1983 Indenture may:

o             change  the stated  maturity  date of the  principal  of, or any
              installment  of interest or Additional  Amounts  payable on, any
              senior debt  security or any premium  payable on redemption , or
              change the redemption price;

o             reduce the  principal  amount of, or the interest or  Additional
              Amounts  payable  on, any  senior  debt  security  or reduce the
              amount of  principal  which  could be  declared  due and payable
              before the stated maturity date;

o             change the place or currency of any payment of  principal or any
              premium,  interest or Additional  Amounts  payable on any senior
              debt security;

o             impair the right to institute suit for the enforcement of any 
              payment on or with respect to any  senior  debt security;

o             reduce the  percentage  in principal  amount of the  outstanding
              senior  debt  securities  of any  series,  the  consent of whose
              holders is required to modify or amend the 1983 Indenture; or

o             modify the foregoing  requirements  or reduce the  percentage of
              outstanding  senior debt securities  necessary to waive any past
              default to less than a majority.

         No  modification or amendment of ML&Co.'s  Subordinated  Indenture or
any Subsequent Indenture for subordinated debt securities may adversely affect
the rights of any holder of ML&Co.'s senior  indebtedness  without the consent
of each  holder  affected.  The  holders of at least a majority  in  principal
amount of outstanding  senior debt  securities of any series may, with respect
to that  series,  waive  past  defaults  under  the 1983  Indenture  and waive
compliance  by  ML&Co.  with  provisions  in the  1983  Indenture,  except  as
described under "--Events of Default".

Events of Default

         Each of the  following  will be Events of  Default  with  respect  to
senior debt securities of any series:

o        default in the payment of any interest or Additional Amounts payable  
         when due and continuing for 30 days;

o        default in the payment of any principal or premium when due;

o        default in the deposit of any sinking fund payment, when due;

o        default in the  performance  of any other  obligation  of ML&Co.
         contained in the 1983  Indenture  for the benefit of that series
         or in the senior debt securities of that series,  continuing for
         60 days after written notice as provided in the 1983 Indenture;

o        specified events in bankruptcy, insolvency or reorganization of 
         ML&Co.; and

o        any other Event of Default  provided with respect to senior debt
         securities  of that series which are not  inconsistent  with the
         1983 Indenture.

If an Event of Default  occurs and is continuing for any series of senior debt
securities,  other  than  as  a  result  of  the  bankruptcy,   insolvency  or
reorganization  of  ML&Co.,  the  trustee  or the  holders  of at least 25% in
principal amount of the outstanding  senior debt securities of that series may
declare all  amounts,  or any lesser  amount  provided  for in the senior debt
securities,  due and payable or deliverable  immediately.  At any time after a
declaration  of  acceleration  has been  made  with  respect  to  senior  debt
securities  of any series but before the  trustee  has  obtained a judgment or
decree for payment of money , the holders of a majority in principal amount of
the  outstanding  senior  debt  securities  of that  series  may  rescind  any
declaration of acceleration and its  consequences,  if all payments due, other
than those due as a result of  acceleration,  have been made and all Events of
Default have been remedied or waived.

         The  holders of a majority in  principal  amount or  aggregate  issue
price of the  outstanding  senior debt securities of that series may waive any
Event of Default with respect to that series, except a default:

o        in the payment of any amounts due and payable or deliverable under the
         debt securities of that series; or

o        in respect of an obligation  or provision of the 1983  Indenture
         which  cannot be  modified  under  the  terms of that  Indenture
         without the consent of each holder of each outstanding  security
         of each series of senior debt securities affected.

         The  holders of a majority  in  principal  amount of the  outstanding
senior debt  securities  of a series may direct the time,  method and place of
conducting  any  proceeding  for  any  remedy  available  to  the  trustee  or
exercising  any trust or power  conferred on the trustee with respect to those
senior debt  securities,  provided that any direction shall not be in conflict
with any rule of law or the 1983 Indenture.  Before proceeding to exercise any
right or power under the 1983  Indenture at the direction of the holders,  the
trustee shall be entitled to receive from the holders  reasonable  security or
indemnification  against the costs,  expenses and  liabilities  which might be
incurred by it in complying with any direction.

         The MITTS  Securities  and other  series  of senior  debt  securities
issued under the 1983  Indenture do not have the benefit of any  cross-default
provisions with other indebtedness of ML&Co.

         ML&Co. is required to furnish to the trustee  annually a statement as
to  the  fulfillment  by  ML&Co.  of all of its  obligations  under  the  1983
Indenture.


                          PROJECTED PAYMENT SCHEDULE

         Solely  for  purposes  of  applying  the  final  Treasury  Department
Regulations,  the "Final  Regulations",  concerning  the proper  United States
Federal  income tax treatment of contingent  payment debt  instruments  to the
MITTS  Securities,  ML&Co. has determined that the projected  payment schedule
for the MITTS  Securities  will consist of payment on the maturity date of the
principal  amount and a  projected  Supplemental  Redemption  Amount  equal to
$3.6070  per  unit,  the  "Projected  Supplemental  Redemption  Amount".  This
represents  an  estimated  yield on the  MITTS  Securities  equal to 6.18% per
annum, compounded semiannually.

         The  projected  payment   schedule,   including  both  the  Projected
Supplemental   Redemption   Amount  and  the  estimated  yield  on  the  MITTS
Securities,  has been  determined  solely for United States Federal income tax
purposes,  for  purposes  of  applying  the  Final  Regulations  to the  MITTS
Securities,  and is neither a  prediction  nor a guarantee  of what the actual
Supplemental  Redemption  Amount  will  be,  or that the  actual  Supplemental
Redemption Amount will even exceed zero.

         The  following  table sets forth the amount of interest  that will be
deemed to have  accrued  with  respect  to each  unit of the MITTS  Securities
during each accrual period over a term of five years and  twenty-two  days for
the MITTS Securities  based upon the projected  payment schedule for the MITTS
Securities,  including both the Projected  Supplemental  Redemption Amount and
the  estimated  yield equal to 6.18% per annum,  compounded  semiannually,  as
determined  by ML&Co.  for purposes of applying the Final  Regulations  to the
MITTS Securities:

<TABLE>
<CAPTION>

                                                                                               Total Interest
                                                                                                 Deemed to
                                                                                                Have Accrued
                                                                 Interest Deemed to         On the MITTS Securities
                                                                     Accrue During               as of End of
                                                                   Accrual Period              Accrual Period
         Accrual Period                                               (per Unit)                (per Unit)
- -----------------------------------                                   ----------                ----------
<S>                                                                   <C>                       <C>    

January 15, 1998 through July 14, 1998.....................           $0.3101                   $0.3470 
July 15, 1998 through January 14,  1999....................           $0.3197                   $0.6667 
January 15, 1999 through July 14,  1999....................           $0.3296                   $0.9963 
July 15, 1999 through January 14,  2000....................           $0.3398                   $1.3361 
January 15, 2000 through July 14,  2000....................           $0.3503                   $1.6864 
July 15, 2000 through January 14,  2001....................           $0.3611                   $2.0475 
January 15, 2001 through July 14,  2001....................           $0.3723                   $2.4198 
July 15, 2001 through January 14,  2002....................           $0.3837                   $2.8035 
January 15, 2002 through July 14,  2002....................           $0.3957                   $3.1992 
July 15, 2002 through January 14,  2003....................           $0.4078                   $3.6070 
</TABLE>

    
- -------------
         Projected Supplemental Redemption Amount = $3.6070 per Unit.

   
         All  prospective  investors in the MITTS  Securities  should  consult
their own tax advisors  concerning the application of the Final Regulations to
their  investment in the MITTS  Securities.  Investors in the MITTS Securities
may also obtain the projected  payment  schedule,  as determined by ML&Co. for
purposes of the application of the Final  Regulations to the MITTS Securities,
by submitting a written  request for such  information to Merrill Lynch & Co.,
Inc.,  Attn:  Darryl W. Colletti,  Corporate  Secretary's  Office,  100 Church
Street, 12th Floor, New York, New York 10080-6512.


                      WHERE YOU CAN FIND MORE INFORMATION

         We file reports, proxy statements and other information with the SEC.
Our SEC filings are also  available over the Internet at the SEC's web site at
http://www.sec.gov.  You may  also  read  and  copy  any  document  we file by
visiting the SEC's public  reference rooms in Washington,  D.C., New York, New
York, and Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further
information  about the public  reference  rooms.  You may also inspect our SEC
reports and other  information at the New York Stock Exchange,  Inc., 20 Broad
Street, New York, New York 10005.

         We have  filed a  registration  statement  on Form  S-3  with the SEC
covering the MITTS Securities and other securities. For further information on
ML&Co.  and  the  MITTS  Securities,  you  should  refer  to our  registration
statement and its exhibits.  This prospectus summarizes material provisions of
contracts and other documents that we refer you to. Because the prospectus may
not contain all the information that you may find important, you should review
the full text of these  documents.  We have included copies of these documents
as exhibits to our registration statement of which this prospectus is a part.


               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

         The SEC allows us to incorporate by reference the information we file
with them, which means:

o        incorporated documents are considered part of the prospectus;

o        we can disclose important information to you by referring you to those
         documents; and

o        information  that we  file  with  the SEC  will  automatically  update
         and supersede this incorporated information.

         We  incorporate  by reference the  documents  listed below which were
filed with the SEC under the Exchange Act:

o        annual report on Form 10-K for the year ended December 25, 1998; and

o        current reports on Form 8-K dated December 28, 1998,  January 19, 1999,
         February 17, 1999,  February 18, 1999,  February 22, 1999, February 23,
         1999 and March 26, 1999.

         We also  incorporate by reference each of the following  documents that
we will file with the SEC after the date of this prospectus  until this offering
is completed or after the date of this initial registration statement and before
the effectiveness of the registration statement:

o        reports filed under Sections 13(a) and (c) of the Exchange Act;

o        definitive  proxy or information  statements  filed under Section 14 of
         the  Exchange  Act in  connection  with  any  subsequent  stockholders'
         meeting; and

o        any reports filed under Section 15(d) of the Exchange Act.

         You should rely only on  information  contained  or  incorporated  by
reference in this prospectus.  We have not, and MLPF&S has not, authorized any
other person to provide you with different information. If anyone provides you
with different or inconsistent information,  you should not rely on it. We are
not,  and  MLPF&S is not,  making  an offer to sell  these  securities  in any
jurisdiction where the offer or sale is not permitted.

         You should assume that the  information  appearing in this prospectus
is accurate as of the date of this  prospectus  only. Our business,  financial
condition and results of operations may have changed since that date.

         You may  request a copy of any filings  referred to above  (excluding
exhibits), at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan, Jr.,  Corporate  Secretary's  Office,  Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.


                             PLAN OF DISTRIBUTION

         This  prospectus has been prepared in connection with secondary sales
of the MITTS  Securities  and is to be used by MLPF&S when  making  offers and
sales related to market-making transactions in the MITTS Securities.

         MLPF&S  may  act  as  principal  or  agent  in  these   market-making
transactions.

         The MITTS  Securities  may be offered on the NYSE or off the exchange
in negotiated transactions or otherwise.

         The  distribution  of  the  MITTS  Securities  will  conform  to  the
requirements set forth in the applicable  sections of Rule 2720 of the Conduct
Rules of the NASD.


                                    EXPERTS

         The  consolidated   financial  statements  and  the  related  financial
statement schedule  incorporated in this prospectus by reference from the Annual
Report on Form 10-K of Merrill  Lynch & Co.,  Inc.  and  subsidiaries  have been
audited  by  Deloitte & Touche  LLP,  independent  auditors,  as stated in their
reports  (which  express  an  unqualified   opinion  and  which  report  on  the
consolidated  financial  statements  includes an  explanatory  paragraph for the
change in  accounting  method  for  certain  internal-use  software  development
costs),   which  are  incorporated  herein  by  reference,   and  have  been  so
incorporated  in  reliance  upon the  reports  of such  firm  given  upon  their
authority as experts in accounting and auditing.

    
<PAGE>
   
The information in this prospectus is not complete and may be changed.  We may
not sell these  securities  until the  registration  statement  filed with the
Securities  and Exchange  Commission is effective.  This  prospectus is not an
offer to sell these  securities and it is not soliciting an offer to buy these
securities in any state where the offer or sale is not permitted.
    

                            Subject to Completion
   
                  Preliminary Prospectus dated March 29, 1999
    


P R O S P E C T U S
- -------------------
                           Merrill Lynch & Co., Inc.
     Nikkei 225 Market Index Target-Term Securities(R) due June 14, 2002

   
                             "MITTS(R) Securities"
                         $10 principal amount per unit

         This prospectus is to be used by Merrill Lynch & Co.,  Merrill Lynch,
Pierce, Fenner & Smith Incorporated,  our wholly-owned subsidiary, when making
offers  and  sales  related  to   market-making   transactions  in  the  MITTS
Securities.

<TABLE>
<CAPTION>


The MITTS Securities:                                   Payment at Maturity:
<S>                                                  <C>
o   100%  principal protection at maturity            o  On  the  maturity  date, for  each  unit  of  the
o   No payments before maturity                          MITTS  Securities  you own, we will pay you
o   Senior unsecured debt securities of Merrill          an  amount  equal to the sum  of  the  principal
    Lynch & Co., Inc.                                    amount of  each   unit  and  an additional amount 
o   Linked to the value of the Nikkei Stock              based on the product of the percentage change in the  
    Average                                              value of the index and 140%
o   The MITTS Securities are listed on the New York   o  You will receive no less than the principal amount of your
    Stock Exchange under the symbol "MLN"                MITTS Securities

</TABLE>

               Investing in the MITTS Securities involves risks.
                    See "Risk Factors" beginning on page 3.
    

         Neither  the  Securities  and  Exchange   Commission  nor  any  state
securities  commission  has approved or  disapproved  of these  securities  or
determined if this prospectus is truthful or complete.  Any  representation to
the contrary is a criminal offense.

   
     The sale  price of the MITTS  Securities  will be the  prevailing  market
price at the time of sale.
    

                              ------------------------

                              Merrill Lynch & Co.

                              ------------------------

                    The date of this prospectus is       , 199 .

   
"MITTS" and "Market Index Target-Term Securities" are registered service marks
of Merrill Lynch & Co., Inc.
    


<PAGE>




   

                               TABLE OF CONTENTS
                                                                         Page

RISK FACTORS...............................................................3

MERRILL LYNCH & CO., INC...................................................7

RATIO OF EARNINGS TO FIXED CHARGES.........................................8

DESCRIPTION OF THE MITTS SECURITIES........................................9

THE INDEX.................................................................17

OTHER TERMS...............................................................19

PROJECTED PAYMENT SCHEDULE................................................22

WHERE YOU CAN FIND MORE INFORMATION.......................................23

INCORPORATION OF INFORMATION WE FILE WITH THE SEC.........................23

PLAN OF DISTRIBUTION......................................................24

EXPERTS...................................................................24
    





<PAGE>





                                 RISK FACTORS

   
         Your investment in MITTS  Securities  will involve risks.  You should
carefully  consider the following  discussion of risks before deciding whether
an investment in the MITTS Securities is suitable for you.

YOU MAY NOT EARN A RETURN ON YOUR INVESTMENT.

         You should be aware that at maturity we will pay you no more than $10
for each  unit of the MITTS  Securities  you own if the  average  value of the
index over five  trading days  shortly  before the maturity  date is less than
20,351.34,  the  value of the  index on the date  the  MITTS  Securities  were
priced.  This will be true even if at some time  during  the life of the MITTS
Securities, the value of the index, as adjusted, was higher than 20,351.34 but
later falls below 20,351.34.
    

YOUR  YIELD  MAY BE  LOWER  THAN THE  YIELD ON A  STANDARD  DEBT  SECURITY  OF
COMPARABLE MATURITY.

   
         The  amount we pay you at  maturity  may be less than the  return you
could  earn on other  investments.  Your  yield may be less than the yield you
would earn if you bought a  standard  senior  non-callable  debt  security  of
Merrill Lynch & Co., Inc. with the same maturity date. Your investment may not
reflect the full opportunity cost to you when you consider  inflation or other
factors that affect the time value of money.

YOUR RETURN  WILL NOT REFLECT THE RETURN OF OWNING THE STOCKS  INCLUDED IN THE
INDEX.

         Your  return  will not  reflect  the return you would  realize if you
actually owned the stocks underlying the index and received the dividends paid
on those  stocks.  This is  because  the value of the index is  calculated  by
reference  to the prices of the common  stocks  included in the index  without
taking into consideration the value of dividends paid on those stocks.

YOUR RETURN WILL BE AFFECTED BY CURRENCY EXCHANGE RATES.

         Although the stocks  included in the index are traded in Japanese Yen
and the MITTS Securities are denominated in U.S.  Dollars,  we will not adjust
any amounts payable on the MITTS Securities for the currency  exchange rate in
effect at  maturity.  Any amount in addition to the  principal  amount of each
unit payable to you at maturity is based solely upon the  percentage  increase
in the index.  Changes in the exchange rate,  however,  may reflect changes in
the  Japanese  economy  that may  affect  the value of the index and the MITTS
Securities.

YOUR RETURN MAY BE AFFECTED BY FACTORS AFFECTING THE VALUE OF JAPANESE STOCKS.

         Because the underlying  stocks included in the index have been issued
by Japanese  companies,  risks  relating to an investment  in Japanese  equity
securities  may  affect  the return on your  MITTS  Securities.  The  Japanese
securities  markets may be more volatile than U.S. or other securities markets
and market developments can effect the Japanese markets in different ways than
U.S. or other securities markets.  Direct or indirect government  intervention
to  stabilize  the  Japanese  securities  markets and  cross-shareholdings  in
Japanese companies on those markets may affect prices and volume of trading on
those markets.  Also, there is generally less publicly  available  information
about Japanese  companies than about those U.S.  companies that are subject to
the reporting requirements of the U.S. Securities and Exchange Commission, and
Japanese companies are subject to accounting, auditing and financial reporting
standards and requirements that differ from those applicable to U.S. reporting
companies.

         Securities  prices  in Japan  are  subject  to  political,  economic,
financial  and social  factors  that apply in Japan.  In  addition,  recent or
future changes in the Japanese government's economic and fiscal policies,  the
possible  imposition  of,  or  changes  in,  currency  exchange  laws or other
Japanese laws or restrictions  applicable to Japanese companies or investments
in Japanese equity securities and fluctuations in the rate of exchange between
currencies may negatively affect the Japanese  securities  markets.  Moreover,
the Japanese economy may differ favorably or unfavorably from the U.S. economy
in  economic  factors  such as  growth  in gross  national  product,  rates of
inflation, capital reinvestment, resources and self-sufficiency.

THERE MAY BE AN  UNCERTAIN  TRADING  MARKET  FOR THE MITTS  SECURITIES  IN THE
FUTURE.

         Although the MITTS Securities are listed on the NYSE under the symbol
"MLN," you cannot assume that a trading  market will continue to exist for the
MITTS  Securities.  If a trading market in the MITTS  Securities  continues to
exist,  you cannot assume that there will be liquidity in the trading  market.
The  continued  existence of a trading  market for the MITTS  Securities  will
depend  on  our   financial   performance   and  other  factors  such  as  the
appreciation, if any, of the value of the index.

         If a limited trading market for the MITTS Securities  exists, and you
do not wish to hold your investment  until maturity,  fewer buyers may want to
purchase your MITTS  Securities.  This may affect the price you receive if you
sell before maturity.

THERE ARE MANY FACTORS AFFECTING THE TRADING VALUE OF THE MITTS SECURITIES.

         We  believe  that the  value of the  index  and by a number  of other
factors  will  affect  trading  value of the MITTS  Securities.  Some of these
factors interrelate in complex ways; as a result, the effect of any one factor
may offset or magnify the effect of another factor.  The following  paragraphs
describe  the  expected  impact on the trading  value of the MITTS  Securities
given a change in a specific  factor,  assuming  all other  conditions  remain
constant.

o     The  value of the  index.  We expect that the market  value of the MITTS 
      Securities  will depend  substantially  on the amount by which the index
      exceeds 20,351.34.  If you choose to sell your MITTS Securities when the
      value of the Index exceeds 20,351.34, you may receive substantially less
      than the amount  that would be payable at  maturity  based on that index
      value  because  of the  expectation  that the  index  will  continue  to
      fluctuate  until shortly before the maturity date when the average value
      of the index over five trading days is determined. If you choose to sell
      your MITTS  Securities  when the value of the index is below  20,351.34,
      you may  receive  less than the $10  principal  amount per Unit of MITTS
      Securities. In general, rising Japanese dividend rates, or dividends per
      share,  may  increase  the value of the  index  while  falling  Japanese
      dividend rates may decrease the value of the Index. Political,  economic
      and other  developments  that affect the stocks underlying the index may
      also  affect  the  value  of the  index  and  the  value  of  the  MITTS
      Securities.

o     Interest  rates.   Because   we  will pay,  at a  minimum, the principal
      amount per unit of the MITTS  Securities  at  maturity,  we expect  that
      changes in interest  rates will  affect the  trading  value of the MITTS
      Securities.  In general, if U.S. interest rates increase, we expect that
      the trading value of the MITTS Securities will decrease and, conversely,
      if U.S.  interest  rates  decrease,  we expect the trading  value of the
      MITTS Securities will increase.  In general,  if interest rates in Japan
      increase,  we expect that the trading value of the MITTS Securities will
      increase.  If interest  rates in Japan  decrease,  we expect the trading
      value of the MITTS Securities will decrease.  However, interest rates in
      Japan may also affect the Japanese  economy  and, in turn,  the value of
      the  index.  Rising  interest  rates in Japan may lower the value of the
      Index  and the MITTS  Securities.  Falling  interest  rates in Japan may
      increase the value of the Index and the value of the MITTS Securities.


o     Volatility  of the  index.  Volatility  is the term  used to describe the 
      size and  frequency of market  fluctuations.  If the  volatility  of the
      Index increases, we expect that the trading value of the Securities will
      increase.  If the volatility of the Index decreases,  we expect that the
      trading value of the MITTS Securities will decrease.

o     Time remaining to maturity.  We anticipate that prior to the maturity of 
      the MITTS  Securities,  the MITTS  Securities may trade at a value above
      that which  would be expected  based on the level of interest  rates and
      the  index.  This  difference  will  reflect  a  "time  premium"  due to
      expectations  concerning  the value of the index during the period prior
      to maturity of the MITTS Securities.  However,  as the time remaining to
      maturity  of the MITTS  Securities  decreases,  we expect that this time
      premium  will  decrease,   lowering  the  trading  value  of  the  MITTS
      Securities.

o     Dividend yields. If dividend yields on the stocks comprising  the  index
      increase,  we  expect  that  the  value  of the  MITTS  Securities  will
      decrease.  Conversely,  if dividend yields on the stocks  comprising the
      index  decrease,  we expect that the value of the MITTS  Securities will
      increase.

o     Changes in our credit  ratings.  Our credit  ratings  are an assessment
      of our ability to pay our obligations. Consequently, real or anticipated
      changes in our credit  ratings may affect the trading value of the MITTS
      Securities.  However,  because your return on your MITTS  Securities  is
      dependent upon factors in addition to our ability to pay our obligations
      under the MITTS Securities, such as the percentage increase in the value
      of the index at maturity,  an improvement in our credit ratings will not
      reduce investment risks related to the MITTS Securities.

         We want you to  understand  that  the  impact  of one of the  factors
specified above, such as an increase in interest rates, may offset some or all
of any change in the trading  value of the MITTS  Securities  attributable  to
another factor, such as an increase in the index value.

         In general,  assuming  all  relevant  factors are held  constant,  we
expect that the effect on the trading value of the MITTS Securities of a given
change in most of the factors  listed above will be less if it occurs later in
the term of the MITTS  Securities than if it occurs earlier in the term of the
MITTS Securities except that we expect that the effect on the trading value of
the MITTS  Securities  of a given  increase  in the value of the index will be
greater  if it  occurs  later in the term of the MITTS  Securities  than if it
occurs earlier in the term of the MITTS Securities.

AMOUNTS PAYABLE ON THE MITTS SECURITIES MAY BE LIMITED BY STATE LAW.

         New York  State  laws  govern  the  indenture  under  which the MITTS
Securities  are  issued.  New York has  usury  laws that  limit the  amount of
interest that can be charged and paid on loans, which includes debt securities
like the MITTS  Securities.  Under  present New York law,  the maximum rate of
interest is 25% per annum on a simple interest basis. This limit may not apply
to debt securities in which 2,500,000 or more has been invested.

         While we believe  that New York law would be given  effect by a state
or Federal court sitting outside of New York, many other states also have laws
that  regulate  the amount of  interest  that  chargeable  to and payable by a
borrower. We will promise, for the benefit of the MITTS Securities holders, to
the extent permitted by law, not to voluntarily claim the benefits of any laws
concerning usurious rates of interest.

PURCHASES AND SALES BY  US AND OUR AFFILIATES MAY AFFECT YOUR RETURN.

         We, MLPF&S,  and our affiliates may from time to time buy or sell the
stocks  underlying  the index for our own accounts for business  reasons or in
connection  with hedging our  obligations  under the MITTS  Securities.  These
transactions could affect the price of these stocks and the value of the index
in a manner that would be adverse to your investment in the MITTS Securities.

POTENTIAL CONFLICTS OF INTEREST

         Our subsidiary, Merrill Lynch, Pierce, Fenner & Smith Incorporated or
MLPF&S,  is our agent for the purposes of  calculating  the value of the index
and the amount  payable to you at maturity.  In some  circumstances,  MLPF&S's
role as our subsidiary and its  responsibilities  as calculation agent for the
MITTS  Securities  could give rise to conflicts of interests.  These conflicts
could occur, for instance,  in connection with its determination as to whether
the value of the index can be  calculated  on a particular  trading day, or in
connection  with judgments that it would be required to make in the event of a
discontinuance    of   the   index.    See    "Description    of   the   MITTS
Securities--Adjustments   to  the  Index;   Market   Disruption   Events"  and
"--Discontinuance  of the Index" in this  prospectus.  MLPF&S is  required  to
carry  out its  duties  as  calculation  agent in good  faith  and  using  its
reasonable  judgment.  However,  you should be aware  that  because we control
MLPF&S, potential conflicts of interest could arise.

         We have entered into an arrangement  with one of our  subsidiaries to
hedge the market risks  associated  with our  obligation to pay amounts due at
maturity on the MITTS Securities.  This subsidiary expects to make a profit in
connection with this  arrangement.  We did not seek  competitive bids for this
arrangement from unaffiliated parties.
    

OTHER CONSIDERATIONS.

   
         It is suggested  that you should reach an  investment  decision  with
regard  to  the  MITTS   Securities  only  after  carefully   considering  the
suitability  of  the  MITTS   Securities  in  the  light  of  your  particular
circumstances.

         You should also  consider  the tax  consequences  of investing in the
MITTS Securities and should consult your tax adviser.
    



<PAGE>


   
                           MERRILL LYNCH & CO., INC.

         We  are a  holding  company  that,  through  our  U.S.  and  non-U.S.
subsidiaries  and  affiliates  such as Merrill Lynch,  Pierce,  Fenner & Smith
Incorporated,  Merrill Lynch Government Securities Inc., Merrill Lynch Capital
Services,  Inc.,  Merrill Lynch  International,  Merrill Lynch Capital Markets
Bank Ltd., Merrill Lynch Asset Management L.P. and Merrill Lynch Mercury Asset
Management, provides investment, financing, advisory, insurance, and related
products on a global basis, including:

o   securities brokerage, trading and underwriting;

o   investment banking, strategic services, including mergers and acquisitions
    and other corporate finance advisory activities;

o   asset management and other investment advisory and recordkeeping services;

o   trading and brokerage of swaps, options, forwards, futures and other 
    derivatives;

o   securities clearance services;

o   equity, debt and economic research;

o   banking, trust and lending services, including mortgage lending and related
    services; and

o   insurance sales and underwriting services.

We provide these  products and services to a wide array of clients,  including
individual   investors,   small   businesses,    corporations,    governments,
governmental agencies and financial institutions.

         Our principal  executive office is located at World Financial Center,
North Tower, 250 Vesey Street,  New York, New York 10281; our telephone number
is (212) 449-1000.

         If you  want  to find  more  information  about  us,  please  see the
sections entitled "Where You Can Find More Information" and  "Incorporation of
Information We File with the SEC" in this prospectus.

         In this prospectus, "ML&Co.", "we", "us" and "our" refer specifically
to Merrill Lynch & Co., Inc., the holding company. ML&Co. is the issuer of the
MITTS Securities described in this prospectus.
    



<PAGE>


   
                      RATIO OF EARNINGS TO FIXED CHARGES

         In 1998, we acquired the outstanding shares of Midland Walwyn,  Inc.,
in a  transaction  accounted  for  as a  pooling-of-interests.  The  following
information for the fiscal years 1994 through 1997 has been restated as if the
two entities had always been combined.

         The following  table sets forth our historical  ratios of earnings to
fixed charges for the periods indicated:

<TABLE>
<CAPTION>

                                                         Year Ended Last Friday in December
                                                     1994     1995     1996     1997     1998
                                                     ----     ----     ----     ----     ----

<S>                                                  <C>      <C>      <C>      <C>      <C>
Ratio of earnings to fixed charges(a).........        1.2      1.2      1.2      1.2      1.1
                                                      ===      ===      ===      ===      ===

</TABLE>

- ----------
(a)   The effect of combining Midland Walwyn did not change the ratios reported
      for the fiscal years 1994 through 1997.

         For the  purpose  of  calculating  the  ratio  of  earnings  to fixed
charges,  "earnings"  consist of earnings from  continuing  operations  before
income taxes and fixed charges,  excluding  capitalized interest and preferred
security dividend requirements. "Fixed charges" consist of interest costs, the
interest factor in rentals,  amortization  of debt issuance  costs,  preferred
security dividend requirements of subsidiaries, and capitalized interest.
    



<PAGE>


   
                      DESCRIPTION OF THE MITTS SECURITIES

         On June 3, 1997, ML&Co., Inc. issued an aggregate principal amount of
$255,000,000 or 25,500,000 units of the MITTS Securities.

         The  MITTS  Securities  were  issued  as  a  series  of  senior  debt
securities  under the 1983  Indenture  which is more fully  described  in this
prospectus.

         The MITTS Securities will mature on June 14, 2002.

         While at maturity a beneficial owner of a MITTS Security will receive
the principal  amount of the MITTS Security plus the  Supplemental  Redemption
Amount  described  below,  if any, there will be no other payment of interest,
periodic or otherwise. See "- Payment at Maturity" below.

         ML&Co.,  or any beneficial owner, may not redeem the MITTS Securities
before  maturity.  Upon the  occurrence of an Event of Default with respect to
the MITTS Securities, beneficial owners of the MITTS Securities may accelerate
the maturity of the MITTS Securities,  as described under "- Events of Default
and Acceleration" and "Other Terms - Events of Default" in this prospectus.

         The MITTS Securities were issued in denominations of whole units.
    

Payment at Maturity

   
         At the maturity date, a beneficial  owner of a MITTS Security will be
entitled to receive the  principal  amount of each unit plus the  Supplemental
Redemption  Amount,  if  any,  all as  provided  below.  If  the  Supplemental
Redemption  Amount is not greater  than zero,  a  beneficial  owner of a MITTS
Security  will be entitled to receive only the  principal  amount of its MITTS
Securities.

         The  "Supplemental  Redemption  Amount" for a MITTS  Security will be
determined by the calculation agent and will equal:

<TABLE>
<S>                                                    <C> <C>
Principal Amount of each MITTS Security ($10 per Unit)  X   Ending Index Value-Starting Index Value X Participation Rate
                                                            ------------------------------------------------------------
                                                                                Starting Index Value
    
</TABLE>


         provided,  however, that in no event will the Supplemental Redemption
Amount be less than zero.

   
         The "Starting Index Value" equals 20,351.34, the closing value of the
Index on the Pricing Date.

         The "Ending Index Value" will be determined by the calculation  agent
and will equal the average or  arithmetic  mean of the  closing  values of the
Nikkei  225  Index  (the  "Index")  determined  on  each  of  the  first  five
Calculation Days during the Calculation  Period.  If there are fewer than five
Calculation  Days,  then the Ending Value will equal the average or arithmetic
mean of the  closing  values of the Index on these  Calculation  Days,  and if
there is only one  Calculation  Day,  then the  Ending  Value  will  equal the
closing value of the Index on that  Calculation  Day. If no  Calculation  Days
occur  during the  Calculation  Period , then the Ending  Value will equal the
closing value of the Index determined on the last scheduled Index Business Day
in the Calculation Period, regardless of the occurrence of a Market Disruption
Event on that day.

         The "Participation Rate" equals 140%.
    

         The  "Calculation  Period"  means the period from and  including  the
seventh  scheduled  Index  Business  Day  prior  to the  maturity  date to and
including the second scheduled Index Business Day prior to the maturity date.

         "Calculation Day" means any Index Business Day during the Calculation
Period on which a Market Disruption Event has not occurred.

   
         An "Index  Business  Day" is a day on which the NYSE and the AMEX are
open for trading and the Index or any Successor  Index,  as defined on page 12
below, is calculated and published.

         All determinations made by the calculation agent shall be at the sole
discretion  of the  calculation  agent  and,  absent  a  determination  by the
calculation  agent of a manifest  error,  shall be conclusive for all purposes
and binding on ML&Co. and beneficial owners of the MITTS Securities.
    



<PAGE>


Hypothetical Returns

   
         The following table illustrates,  for a range of hypothetical  Ending
Index Values:

o   the percentage change from the Starting Index Value to the Ending Index 
    Value;

o   the total amount payable  per unit of MITTS Securities;

o   the total rate of return  on the MITTS Securities;

o   the pretax annualized rate of return  on the MITTS Securities; and

o   the pretax  annualized  rate of return of the stocks  underlying
    the Index, which includes an assumed aggregate dividend yield of
    .75% per annum, as more fully described below.
    

   

<TABLE>
<CAPTION>


                                             Total Amount                          Pretax        Pretax Annualized
                                          Payable at Maturity Total Rate of   Annualized Rate    Rate of Return of
                        Percentage Change  Per $10 Principal   Return on       of Return on     Stocks Underlying
  Hypothetical Ending   Over the Starting   Amount of MITTS     the MITTS        the MITTS              the
      Index Value          Index Value        Securities        Securities     Securities(1)        Index(1)(2)
  -------------------   ----------------- ------------------- -------------  ----------------   ------------------
    

       <S>                    <C>                 <C>             <C>             <C>                  <C>    
          8,140.54             -60%               $10.00           0.00%            0.00%              -17.13%
         10,175.67             -50%               $10.00           0.00%            0.00%              -12.86%
         12,210.80             -40%               $10.00           0.00%            0.00%               -9.33%
         14,245.94             -30%               $10.00           0.00%            0.00%               -6.32%
         16,281.07             -20%               $10.00           0.00%            0.00%               -3.69%
         18,316.21             -10%               $10.00           0.00%            0.00%               -1.35%
         20,351.34(3)            0%               $10.00           0.00%            0.00%                0.75%
         22,386.47              10%               $11.40          14.00%            2.62%                2.66%
         24,421.61              20%               $12.80          28.00%            4.97%                4.42%
         26,456.74              30%               $14.20          42.00%            7.09%                6.04%
         28,491.88              40%               $15.60          56.00%            9.04%                7.55%
         30,527.01              50%               $17.00          70.00%           10.83%                8.96%
         32,562.14              60%               $18.40          84.00%           12.50%               10.29%
         34,597.28              70%               $19.80          98.00%           14.05%               11.54%
         36,632.41              80%               $21.20         112.00%           15.51%               12.72%
         38,667.55              90%               $22.60         126.00%           16.88%               13.84%
         40,702.68             100%               $24.00         140.00%           18.18%               14.91%
         42,737.81             110%               $25.40         154.00%           19.42%               15.92%
         44,772.95             120%               $26.80         168.00%           20.59%               16.90%
         46,808.08             130%               $28.20         182.00%           21.71%               17.83%

</TABLE>

   
- ----------


(1)  The  annualized  rates of return  specified  in the  preceding  table are
     calculated on a semiannual bond equivalent basis.
(2)  This rate of return assumes:
(a)       an investment of a fixed amount in the stocks  underlying  the Index
          with the  allocation of an amount  reflecting  the current  relative
          weights  of the stocks in the Index;  a constant  dividend  yield of
          .75% per annum,  paid quarterly from the date of initial delivery of
          MITTS  Securities,  applied  to the value of the Index at the end of
          each quarter  assuming  this value  increases or decreases  linearly
          from the Starting Value to the hypothetical Ending Index Value;
(b)       a  percentage  change in the  aggregate  price of these  stocks that
          equals  the  percentage  change in the Index from  20,351.34  to the
          relevant hypothetical Ending Index Value;
    
(c)      no transaction fees or expenses;
   
(d)      the term  of the MITTS Securities is from June 3, 1997 to June 14, 
         2002;
(e)       a final Index value equal to the Ending Index Value.  The  aggregate
          dividend yield of the stocks underlying the Index as of May 28, 1997
          was approximately .75%.
(3)       The Starting Index Value.

         The above figures are for purposes of  illustration  only. The actual
Supplemental  Redemption  Amount received by investors and the resulting total
and pretax annualized rate of return will depend entirely on the actual Ending
Index  Value  determined  by  the  calculation   agent  as  provided  in  this
prospectus.
    

Adjustments to the Index; Market Disruption Events

   
         "Market  Disruption  Event" means either of the following  events, as
determined by the calculation agent:

         (a)  a suspension,  material  limitation or absence of trading on the
              Tokyo  Stock  Exchange  (the  "TSE")  of  20%  or  more  of  the
              underlying  stocks  included in the Index or a  Successor  Index
              during the one-half  hour period  preceding the close of trading
              on the applicable exchange; or

         (b)  the   suspension   or  material   limitation  on  the  Singapore
              International  Monetary Exchange,  Ltd. (the "SIMEX"), the Osaka
              Securities  Exchange  (the "OSE") or any other major  futures or
              securities  market from trading in futures or options  contracts
              related to the Index or a Successor  Index  during the  one-half
              hour  period  preceding  the close of trading on the  applicable
              exchange.
    

For the  purposes  of  determining  whether  a  Market  Disruption  Event  has
occurred:

   
o    a limitation  on the hours or number of days of trading will not
     constitute  a  Market  Disruption  Event if it  results  from an
     announced  change in the regular  business hours of the relevant
     exchange,

o    a decision to  permanently  discontinue  trading in the relevant
     futures  or  options  contract  will  not  constitute  a  Market
     Disruption Event,

o    a suspension in trading in a futures or options  contracts on the 
     Index by a major securities market by reason of

     o   a price change violating limits set by  that securities market,

     o   an imbalance of orders relating to  futures or options contracts or

     o   a disparity in bid and ask quotes relating to futures or
         options   contracts  will  constitute  a  suspension  or
         material  limitation  of  trading  in futures or options
         contracts related to the Index, and,

o    an absence of trading on the TSE will not  include any time when
     the TSE is closed for trading under ordinary  circumstances.  In
     some circumstances, the duties of MLPF&S as calculation agent in
     determining  the  existence  of Market  Disruption  Events could
     conflict  with the  interests  of MLPF&S as an  affiliate of the
     issuer of the MITTS Securities.
    

Discontinuance of the Index

   
         If the publisher of the Nikkei 225 Index, Nihon Keizai Shimbum,  Inc.
("NKS"),  discontinues  publication  of the  Index and NKS or  another  entity
publishes  a  successor  or  substitute  index  that  the  calculation   agent
determines,  in its  sole  discretion,  to be  comparable  to the  Index  (any
successor or substitute  index is referred to as a "Successor  Index"),  then,
upon the calculation agent's  notification of its determination to the trustee
and ML&Co.,  the  calculation  agent will  substitute  the Successor  Index as
calculated by NKS or other entity for the Index and calculate the Ending Value
as described  above under  "-Payment at  Maturity".  Upon any selection by the
calculation  agent of a Successor  Index,  ML&Co.  shall cause  notice of that
selection to be given to holders of the MITTS Securities.

         If NKS discontinues publication of the Index and a Successor Index is
not selected by the calculation  agent or is no longer published on any of the
Calculation  Days, the value to be substituted for the Index for a Calculation
Day used to calculate the Supplemental Redemption Amount at maturity will be a
value computed by the calculation agent for each Calculation Day in accordance
with  the   procedures   last  used  to  calculate  the  Index  prior  to  the
discontinuance.  If a Successor  Index is selected  or the  calculation  agent
calculates  a value as a  substitute  for the Index as  described  below,  the
Successor  Index or value shall be substituted for the Index for all purposes,
including  for  purposes  of  determining  whether a Market  Disruption  Event
exists.  If the calculation  agent  calculates a value as a substitute for the
Index,  "Calculation Day" shall mean any day on which the calculation agent is
able to calculate that value.

         If NKS  discontinues  publication  of the Index  prior to the  period
during which the  Supplemental  Redemption  Amount is to be determined and the
calculation  agent  determines  that no  Successor  Index is available at that
time, then on each Business Day until the earlier to occur of

o         the determination of the Ending  Value and

o         a determination by the  calculation agent that a Successor Index is 
          available,

the  calculation  agent  shall  determine  the  value  that  would  be used in
computing  the  Supplemental  Redemption  Amount as described in the preceding
paragraph as if that day were a Calculation  Day. The  calculation  agent will
cause  notice of these  values to be  published  not less often than once each
month in The Wall Street Journal, or another newspaper of general circulation,
and arrange for information  with respect to these values to be made available
by telephone.

         Notwithstanding these alternative arrangements, discontinuance of the
publication of the Index may adversely affect trading in the MITTS Securities.
    

Events of Default and Acceleration

   
         If an Event of  Default  with  respect  to any MITTS  Securities  has
occurred and is  continuing,  the amount  payable to a  beneficial  owner of a
MITTS Security upon any acceleration  permitted by the MITTS Securities,  with
respect to each $10 principal  amount per unit, will be equal to the principal
amount per unit and the Supplemental  Redemption Amount, if any, calculated as
though the date of early  repayment were the stated maturity date of the MITTS
Securities.  See "- Payment at Maturity" in this  prospectus.  If a bankruptcy
proceeding  is  commenced  in respect of ML&Co.,  the claim of the  beneficial
owner of a MITTS Security may be limited,  under Section 502(b)(2) of Title 11
of the  United  States  Code,  to the  principal  amount per unit of the MITTS
Security plus an additional amount of contingent interest calculated as though
the date of the  commencement  of the proceeding were the maturity date of the
MITTS Securities.

         In case of default in payment of the MITTS Securities, whether at the
stated  maturity or upon  acceleration,  from and after the maturity  date the
MITTS  Securities  shall bear interest,  payable upon demand of the beneficial
owners of the MITTS Securities,  at the rate of 6.96% per annum, to the extent
that  payment  of any  interest  shall be legally  enforceable,  on the unpaid
amount due and payable on that date in accordance  with the terms of the MITTS
Securities  to the date  payment of any amount has been made or duly  provided
for.

 Global Securities

          Description of the Global Securities

         Beneficial  owners of the MITTS  Securities may not receive  physical
delivery  of the MITTS  Securities  nor may they be entitled to have the MITTS
Securities  registered  in their names.  The MITTS  Securities  currently  are
represented by one or more fully  registered  global  securities.  Each global
security was deposited with, or on behalf of, The Depository  Trust Company or
DTC, DTC,  together with any successor,  being a "depositary",  as depositary,
registered in the name of Cede & Co., DTC's  partnership  nominee , unless and
until it is exchanged in whole or in part for MITTS  Securities  in definitive
form,  the  global  security  is not  transferrable  except  as a whole by the
depositary to a nominee of the depositary or by a nominee of the depositary to
the  depositary or another  nominee of the  depositary or by the depositary or
any nominee to a successor of the depositary or a nominee of that successor.

         So long as DTC, or its  nominee,  is a  registered  owner of a global
security,  DTC or its nominee,  as  appropriate,  will be considered  the sole
owner or holder of the MITTS  Securities  represented by a global security for
all  purposes  under  the  1983  Indenture.  Except  as  provided  below,  the
beneficial  owners of the MITTS  Securities  represented by a global  security
will not be entitled to have the MITTS  Securities  represented  by the global
security registered in their names, will not receive or be entitled to receive
physical  delivery of the MITTS  Securities in definitive form and will not be
considered  the  owners or holders  under the 1983  Indenture,  including  for
purposes of receiving any reports delivered by ML&Co. or the trustee under the
1983  Indenture.  Accordingly,  each person owning a beneficial  interest in a
global  security must rely on the procedures of DTC and, if that person is not
a participant  of DTC on the procedures of the  participant  through which the
person owns its  interest,  to exercise  any rights of a holder under the 1983
Indenture.  ML&Co.  understands that under existing industry practices, in the
event  that  ML&Co.  requests  any  action  of  holders  or that an owner of a
beneficial  interest in a global  security  desires to give or take any action
which a holder is entitled to give or take under the 1983 Indenture, DTC would
authorize the participants  holding the relevant beneficial  interests to give
or take any action,  and the participants  would authorize  beneficial  owners
owning through those  participants  to give or take action or would  otherwise
act  upon  the   instructions  of  beneficial   owners.   Arrangements   among
participants,   indirect  participants  and  beneficial  owners,  will  govern
conveyance  of notices and other  communications  by DTC to  participants,  by
participants  to  indirect  participants  and  by  participants  and  indirect
participants  to  beneficial  owners,  subject to any  statutory or regulatory
requirements in effect from time to time.

         DTC Procedures

         The following is based on information furnished by DTC:

         DTC is the securities depositary for the MITTS Securities.  The MITTS
Securities were issued as fully registered  securities  registered in the name
of Cede & Co., DTC's partnership  nominee. One or more fully registered global
securities  were issued for the MITTS  Securities in the  aggregate  principal
amount of the MITTS Securities, and were deposited with DTC.

         DTC is a  limited-purpose  trust company organized under the New York
Banking  Law, a  "banking  organization"  within  the  meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing  corporation"
within the meaning of the New York Uniform  Commercial  Code,  and a "clearing
agency"  registered  under to the  provisions of Section 17A of the Securities
and  Exchange  Act  of  1934,  as  amended.  DTC  holds  securities  that  its
participants  deposit  with DTC. DTC also  facilitates  the  settlement  among
participants  of securities  transactions,  such as transfers and pledges,  in
deposited  securities  through electronic  computerized  book-entry changes in
participants' accounts,  thereby eliminating the need for physical movement of
securities certificates. Direct participants of DTC include securities brokers
and  dealers,   banks,  trust  companies,   clearing  corporations  and  other
organizations.  DTC is owned by a number of its direct participants and by the
NYSE, the AMEX and the National Association of Securities Dealers, Inc. Access
to DTC's  system is also  available to others such as  securities  brokers and
dealers,  banks and trust companies that clear through or maintain a custodial
relationship  with a direct  participant,  either directly or indirectly.  The
rules applicable to DTC and its participants are on file with the SEC.

         Purchases of MITTS  Securities  under DTC's system must be made by or
through  direct  participants,  which  will  receive  a credit  for the  MITTS
Securities on DTC's records.  The ownership  interest of each beneficial owner
is in turn to be recorded on the records of direct and indirect  participants.
Beneficial  owners will not  receive  written  confirmation  from DTC of their
purchase,  but beneficial owners are expected to receive written confirmations
providing details of the transaction,  as well as periodic statements of their
holdings,  from the direct participants or indirect participants through which
the  beneficial  owner  entered into the  transaction.  Transfers of ownership
interests in the MITTS  Securities are to be  accomplished  by entries made on
the books of participants acting on behalf of beneficial owners.

         To facilitate  subsequent  transfers,  all MITTS Securities deposited
with DTC are registered in the name of DTC's partnership  nominee,  Cede & Co.
The deposit of MITTS Securities with DTC and their registration in the name of
Cede & Co. effect no change in beneficial  ownership.  DTC has no knowledge of
the actual beneficial  owners of the MITTS  Securities;  DTC's records reflect
only the  identity  of the direct  participants  to whose  accounts  the MITTS
Securities are credited,  which may or may not be the beneficial  owners.  The
participants will remain  responsible for keeping account of their holdings on
behalf of their customers.

         Arrangements among participants, indirect participants and beneficial
owners,  will govern conveyance of notices and other  communications by DTC to
participants, by participants to indirect participants and by participants and
indirect  participants  to  beneficial  owners,  subject to any  statutory  or
regulatory requirements in effect from time to time.

         Neither DTC nor Cede & Co. will  consent or vote with  respect to the
MITTS Securities.  Under its usual  procedures,  DTC mails an omnibus proxy to
ML&Co. as soon as possible after the applicable record date. The omnibus proxy
assigns Cede & Co.'s consenting or voting rights to those direct  participants
identified in a listing  attached to the omnibus  proxy to whose  accounts the
MITTS  Securities  are  credited  on the record date  identified  in a listing
attached to the omnibus proxy.

         Principal,  premium, if any, and/or interest, if any, payments on the
MITTS  Securities  will be made in immediately  available  funds to DTC. DTC's
practice is to credit direct participants'  accounts on the applicable payment
date in accordance with their  respective  holdings shown on the  depositary's
records  unless DTC has reason to believe that it will not receive  payment on
that date. Standing instructions and customary practices,  as is the case with
securities  held for the accounts of customers in bearer form or registered in
"street name", will govern payments by participants to beneficial  owners, and
these payments will be the  responsibility  of the participant and not of DTC,
the trustee or ML&Co., subject to any statutory or regulatory  requirements in
effect  from time to time.  Payment  of  principal,  premium,  if any,  and/or
interest,  if any,  to DTC is the  responsibility  of ML&Co.  or the  trustee,
disbursement of payments to direct  participants is the responsibility of DTC,
and disbursement of payments to the beneficial owners is the responsibility of
direct and indirect participants.

         Exchange for Certificated Securities

         If:

o        the depositary is at any time unwilling or unable to continue as 
         depositary and a successor depositary is not appointed by ML&Co. 
         within 60 days,

o        ML&Co. executes and delivers to the trustee a company order to the 
         effect that the global securities shall be exchangeable, or

o        an Event of Default under the 1983 Indenture has occurred and is 
         continuing with respect to the MITTS Securities,

DTC will  exchange the global  securities  for MITTS  Securities in definitive
form  of  like  tenor  and  of  an  equal  aggregate   principal   amount,  in
denominations  of $10 and  integral  multiples of $10.  The  definitive  MITTS
Securities  will be  registered in the name or names as the  depositary  shall
instruct the trustee.  The depositary  expects that these  instructions may be
based upon  directions  received  by the  depositary  from  participants  with
respect to ownership of beneficial interests in the global securities.

         In addition,  ML&Co.  may decide to discontinue  use of the system of
book-entry  transfers through the depositary.  In that event, MITTS Securities
in definitive form will be printed and delivered to holders.

         The  information in this section  concerning DTC and DTC's system has
been  obtained  from sources that ML&Co.  believes to be reliable,  but ML&Co.
takes no responsibility for its accuracy.
    

Same-Day Settlement and Payment

   
         ML&Co  will  make all  payments  of  principal  and the  Supplemental
Redemption Amount, if any, in immediately available funds so long as the MITTS
Securities are maintained in book-entry form.
    



<PAGE>


                                   THE INDEX

         All  disclosure  contained in this  prospectus  regarding  the Index,
including,  without limitation, its make-up, method of calculation and changes
in its components,  is derived from publicly available information prepared by
Nihon Keizai Shimbun, Inc. ("NKS").

   
         Unless otherwise stated, all information in this prospectus  relating
to the Nikkei 225 Index has been derived  from the Stock  Market  Indices Data
Book published by NKS and other  publicly-available  sources. This information
reflects the policies of NKS as stated in these  sources.  These  policies are
subject to change at the discretion of NKS.
    

         The  Nikkei  225 Index is a stock  index  calculated,  published  and
disseminated by NKS that measures the composite price  performance of selected
Japanese  stocks.  The Nikkei 225 Index is currently  based on 225  Underlying
Stocks  trading on the TSE and  represents a broad  cross-section  of Japanese
industry.  All 225 Underlying Stocks are stocks listed in the First Section of
the TSE. Stocks listed in the First Section are among the most actively traded
stocks on the TSE.  Futures and options  contracts on the Nikkei 225 Index are
traded  on the  Singapore  International  Monetary  Exchange  Ltd.,  the Osaka
Securities Exchange and the Chicago Mercantile Exchange.

         The Nikkei 225 Index is a modified,  price-weighted  index (i.e.,  an
Underlying  Stock's weight in the index is based on its price per share rather
than the total market capitalization of the issuer) which is calculated by:

   
o             multiplying the per share price of each Underlying  Stock by the
              corresponding  weighting  factor  for the  Underlying  Stock  (a
              "Weight Factor"),

o         calculating the sum of all these products; and

o         dividing  this sum by a divisor.

     The value of the  Nikkei  225  Index is  reported  on the AMEX  under the
symbol  "N225",  on Bloomberg  under the symbol "NKY" and on Reuters under the
symbol ".N225".

     The divisor,  initially set in 1949 at 225, was 10.052 as of December 21,
1998, and is subject to periodic  adjustments as set forth below.  Each Weight
Factor  is  computed  by  dividing  (Y)50  by the par  value  of the  relevant
Underlying  Stock,  so that the  share  price of each  Underlying  Stock  when
multiplied  by its  Weight  Factor  corresponds  to a share  price  based on a
uniform par value of (Y)50. Each Weight Factor represents the number of shares
of the related  Underlying Stock which are included in one trading unit of the
Nikkei 225 Index.  The stock prices used in the  calculation of the Nikkei 225
Index are  those  reported  by a primary  market  for the  Underlying  Stocks,
currently  the TSE. The level of the Nikkei 225 Index is  calculated  once per
minute during TSE trading hours.

         In order to maintain  continuity in the level of the Nikkei 225 Index
in the event of  certain  changes  due to  non-market  factors  affecting  the
Underlying Stocks, including the addition or deletion of stocks,  substitution
of  stocks,  stock  dividends,  stock  splits  or  distributions  of assets to
stockholders, the divisor used in calculating the Nikkei 225 Index is adjusted
in a manner designed to prevent any  instantaneous  change or discontinuity in
the level of the Nikkei 225 Index. Thereafter,  the divisor remains at the new
value until a further adjustment is necessary as the result of another change.
As a result of each change  affecting  any  Underlying  Stock,  the divisor is
adjusted  so that the sum of all share  prices  immediately  after the  change
multiplied by the applicable Weight Factor and divided by the new divisor, the
level of the Nikkei 225 Index  immediately  after the  change,  will equal the
level of the Nikkei 225 Index immediately prior to the change.

         NKS  may  delete  or add  Underlying  Stocks.  However,  to  maintain
continuity  in the  Nikkei 225 Index,  the policy of NKS is  generally  not to
alter the composition of the Underlying Stocks except when an Underlying Stock
is deleted in accordance with the following criteria. NKS will delete from the
Underlying  Stocks  any stock  becoming  ineligible  for  listing in the First
Section of the TSE due to any of the  following  reasons :  bankruptcy  of the
issuer;  merger of the issuer into, or  acquisition  of the issuer by, another
company;  delisting of the stock or transfer of the stock to the  "Seiri-Post"
because  of excess  debt of the  issuer or  because  of any other  reason;  or
transfer  of the stock to the Second  Section of the TSE.  Upon  deletion of a
stock from the Underlying  Stocks, NKS will select, in accordance with certain
criteria established by it, a replacement for the deleted Underlying Stock. In
an exceptional case, NKS may add to the Underlying Stocks a newly listed stock
in the First Section of the TSE that is recognized by NKS to be representative
of a market . In that case, NKS will delete an existing  Underlying Stock with
low trading volume that is not representative of a market .

         NKS  is  under  no  obligation  to  continue  the   calculation   and
dissemination of the Nikkei 225 Index. The MITTS Securities are not sponsored,
endorsed,  sold or  promoted  by NKS.  No  inference  should be drawn from the
information  contained  in this  Prospectus  Supplement  that  NKS  makes  any
representation  or warranty,  implied or express,  to Merrill Lynch & Co., the
holders of the MITTS  Securities  or any member of the  public  regarding  the
advisability of investing in securities  generally or in the MITTS  Securities
in  particular  or the ability of the Nikkei 225 Index to track  general stock
market  performance.  NKS has no obligation to take the needs of ML&Co. or the
holders of the MITTS Securities into  consideration in determining,  composing
or calculating the Nikkei 225 Index.  NKS is not responsible  for, and has not
participated in the  determination of the timing of, prices for, or quantities
of, the MITTS  Securities to be issued or in the  determination or calculation
of the equation by which the MITTS  Securities  are to be settled in cash. NKS
has  no  obligation  or  liability  in  connection  with  the  administration,
marketing or trading of the MITTS Securities.

         The use of and reference to the Nikkei 225 Index in  connection  with
the MITTS  Securities  have been  consented  to by NKS,  the  publisher of the
Nikkei 225 Index.

         None of ML&Co., the calculation agent and the underwriter accepts any
responsibility  for the calculation,  maintenance or publication of the Nikkei
225 Index or any Successor  Index.  NKS disclaims all  responsibility  for any
errors or omissions in the  calculation  and  dissemination  of the Nikkei 225
Index or the manner in which the Index is applied in determining  any Starting
or Ending Index Values or any Supplemental  Redemption Amount upon maturity of
the MITTS Securities.
    

The Tokyo Stock Exchange

         The Tokyo Stock  Exchange is one of the  world's  largest  securities
exchanges  in terms of market  capitalization.  The TSE  market is a  two-way,
continuous pure auction market.  Trading hours are currently from 9:00 A.M. to
11:00 A.M.  and from  12:30 P.M.  to 3:00 P.M.,  Tokyo  time,  Monday  through
Friday.

   
         Due to the time zone  difference,  on any normal  trading day the TSE
will  close  prior to the  opening  of  business  in New York City on the same
calendar  day.  Therefore,  the  closing  level of the  Nikkei  225 Index on a
trading day will generally be available in the United States by the opening of
business on the same calendar day.

         The TSE has adopted  certain  measures,  including daily price floors
and ceilings on individual stocks,  intended to prevent any extreme short-term
price  fluctuations  resulting from order  imbalances.  In general,  any stock
listed on the TSE cannot be traded at a price lower than the applicable  price
floor or higher than the  applicable  price  ceiling.  These price  floors and
ceilings  are  expressed in absolute  Japanese  yen,  rather than  percentage,
limits based on the closing price of the stock on the previous trading day. In
addition,  when there is a major order  imbalance in a listed  stock,  the TSE
posts a "special  bid quote" or a  "special  asked  quote" for that stock at a
specified  higher or lower  price  level than the  stock's  last sale price in
order to solicit  counter-orders  and balance supply and demand for the stock.
Investors  should  also be  aware  that the TSE may  suspend  the  trading  of
individual  stocks  in  certain  limited  and   extraordinary   circumstances,
including,  for example,  unusual trading activity in that stock. As a result,
changes in the Nikkei 225 Index may be limited by price limitations or special
quotes,  or by suspension of trading,  on individual stocks which comprise the
Nikkei 225 Index.  These limitations may, in turn,  adversely affect the value
of the MITTS Securities.
    

                                  OTHER TERMS

   
         ML&Co.  issued  the  MITTS  Securities  as a series  of  senior  debt
securities under the 1983 Indenture, dated as of April 1, 1983, as amended and
restated,  between ML&Co. and The Chase Manhattan Bank, as trustee.  A copy of
the 1983  Indenture  is  filed as an  exhibit  to the  registration  statement
relating  to the MITTS  Securities  of which this  prospectus  is a part.  The
following  summaries of the material  provisions of the 1983 Indenture are not
complete and are subject to, and qualified in their  entirety by reference to,
all provisions of the 1983  Indenture,  including the  definitions of terms in
the 1983 Indenture.

         ML&Co.  may issue series of senior debt  securities from time to time
under the 1983 Indenture, without limitation as to aggregate principal amount,
in one or more  series  and upon  terms as  ML&Co.  may  establish  under  the
provisions of the 1983 Indenture.

         The 1983  Indenture  and the MITTS  Securities  are  governed  by and
construed in accordance with the laws of the State of New York.

         ML&Co.  may issue senior debt  securities  with terms  different from
those of senior debt securities previously issued, and issue additional senior
debt securities of a previously issued series of senior debt securities.

         The senior debt  securities  are  unsecured and rank equally with all
other unsecured and  unsubordinated  indebtedness of ML&Co.  However,  because
ML&Co. is a holding company, the rights of ML&Co. and its creditors, including
the holders of senior debt  securities,  to participate in any distribution of
the  assets  of any  subsidiary  upon its  liquidation  or  reorganization  or
otherwise  are  necessarily  subject to the prior  claims of  creditors of the
subsidiary,  except to the extent that a bankruptcy court may recognize claims
of ML&Co.  itself as a creditor of the  subsidiary . In  addition,  dividends,
loans and advances from certain subsidiaries,  including MLPF&S, to ML&Co. are
restricted by net capital requirements under the Exchange Act, and under rules
of exchanges and other regulatory bodies.
    

Limitations Upon Liens

   
         ML&Co. may not, and may not permit any majority-owned  subsidiary to,
create,  assume,  incur or permit to exist any indebtedness for borrowed money
secured  by a  pledge,  lien or other  encumbrance,  other  than  those  liens
specifically  permitted  by the 1983  Indenture,  on the  Voting  Stock  owned
directly or indirectly by ML&Co. of any majority-owned subsidiary,  other than
a  majority-owned  subsidiary  which,  at the  time of the  incurrence  of the
secured  indebtedness,  has a net worth of less than  $3,000,000,  unless  the
outstanding  senior debt  securities are secured  equally and ratably with the
secured indebtedness.

         "Voting  Stock" is defined in the 1983  Indenture as the stock of the
class or classes having general voting power under ordinary  circumstances  to
elect at least a majority of the board of directors, managers or trustees of a
corporation provided that, for the purposes of the 1983 Indenture,  stock that
carries only the right to vote  conditionally on the occurrence of an event is
not considered voting stock whether or not the event has happened.
    

Limitation on  Disposition of Voting Stock of, and Merger and Sale of
Assets by, MLPF&S

   
         ML&Co.  may not sell,  transfer  or  otherwise  dispose of any Voting
Stock of MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of
its Voting  Stock,  unless,  after giving  effect to any  transaction,  MLPF&S
remains a Controlled Subsidiary.

         "Controlled  Subsidiary"  is defined in the 1983  Indenture to mean a
corporation  more than 80% of the outstanding  shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

         In addition,  ML&Co. may not permit MLPF&S to:

o        merge or  consolidate,  unless the  surviving  company is a  Controlled
         Subsidiary, or
    

o        convey or  transfer  its  properties  and  assets  substantially  as an
         entirety, except to one or more Controlled Subsidiaries.

Merger and Consolidation

   
         ML&Co.  may  consolidate or merge with or into any other  corporation
and ML&Co. may sell, lease or convey all or substantially all of its assets to
any corporation, provided that:

o       the  resulting   corporation,   if  other  than  ML&Co.,   is  a
        corporation  organized and existing under the laws of the United
        States of America or any U.S.  state and assumes all of ML&Co.'s
        obligations to:

         o   pay any amounts due and payable or deliverable  with respect to all
             the senior debt securities; and

         o   perform  and observe  all of  ML&Co.'s  obligations  under the 1983
             Indenture, and

o        ML&Co.  or the  successor  corporation,  as the  case  may be,  is not,
         immediately  after any  consolidation  or merger,  in default under the
         1983 Indenture.
    

Modification and Waiver

   
         ML&Co.  and the trustee may modify and amend the 1983  Indenture with
the  consent  of  holders  of at least  66 2/3% in  principal  amount  of each
outstanding series of senior debt securities  affected.  However,  without the
consent of each holder of any outstanding  senior debt security  affected,  no
amendment or modification to the 1983 Indenture may:

o             change  the stated  maturity  date of the  principal  of, or any
              installment  of interest or Additional  Amounts  payable on, any
              senior debt  security or any premium  payable on redemption , or
              change the redemption price;

o             reduce the  principal  amount of, or the interest or  Additional
              Amounts  payable  on, any  senior  debt  security  or reduce the
              amount of  principal  which  could be  declared  due and payable
              before the stated maturity date;

o             change the place or currency of any payment of  principal or any
              premium,  interest or Additional  Amounts  payable on any senior
              debt security;

o             impair the right to institute suit for the enforcement of any 
              payment on or with respect to any  senior debt security;

o             reduce the  percentage  in principal  amount of the  outstanding
              senior  debt  securities  of any  series,  the  consent of whose
              holders is required to modify or amend the 1983 Indenture; or

o             modify the foregoing  requirements  or reduce the  percentage of
              outstanding  senior debt securities  necessary to waive any past
              default to less than a majority.

         No  modification or amendment of ML&Co.'s  Subordinated  Indenture or
any Subsequent Indenture for subordinated debt securities may adversely affect
the rights of any holder of ML&Co.'s senior  indebtedness  without the consent
of each  holder  affected.  The  holders of at least a majority  in  principal
amount of outstanding  senior debt  securities of any series may, with respect
to that  series,  waive  past  defaults  under  the 1983  Indenture  and waive
compliance  by  ML&Co.  with  provisions  in the  1983  Indenture,  except  as
described under "--Events of Default".

Events of Default

         Each of the  following  will be Events of  Default  with  respect  to
senior debt securities of any series:

o        default in the payment of any interest or Additional Amounts payable  
         when due and continuing for 30 days;

o        default in the payment of any principal or premium when due;

o        default in the deposit of any sinking fund payment, when due;

o        default in the  performance  of any other  obligation  of ML&Co.
         contained in the 1983  Indenture  for the benefit of that series
         or in the senior debt securities of that series,  continuing for
         60 days after written notice as provided in the 1983 Indenture;

o        specified events in bankruptcy, insolvency or reorganization of 
         ML&Co.; and

o        any other  Event of  Default  provided  with  respect  to  senior  debt
         securities  of that  series  which are not  inconsistent  with the 1983
         Indenture.

         If an Event of  Default  occurs and is  continuing  for any series of
senior debt securities,  other than as a result of the bankruptcy,  insolvency
or  reorganization  of ML&Co.,  the  trustee or the holders of at least 25% in
principal amount of the outstanding  senior debt securities of that series may
declare all  amounts,  or any lesser  amount  provided  for in the senior debt
securities,  due and payable or deliverable  immediately.  At any time after a
declaration  of  acceleration  has been  made  with  respect  to  senior  debt
securities  of any series but before the  trustee  has  obtained a judgment or
decree for payment of money , the holders of a majority in principal amount of
the  outstanding  senior  debt  securities  of that  series  may  rescind  any
declaration of acceleration and its  consequences,  if all payments due, other
than those due as a result of  acceleration,  have been made and all Events of
Default have been remedied or waived.

         The  holders of a majority in  principal  amount or  aggregate  issue
price of the  outstanding  senior debt securities of that series may waive any
Event of Default with respect to that series, except a default:

o        in the payment of any amounts due and payable or deliverable under the
         debt securities of that series; or

o        in respect of an obligation  or provision of the 1983  Indenture
         which  cannot be  modified  under  the  terms of that  Indenture
         without the consent of each holder of each outstanding  security
         of each series of senior debt securities affected.

         The  holders of a majority  in  principal  amount of the  outstanding
senior debt  securities  of a series may direct the time,  method and place of
conducting  any  proceeding  for  any  remedy  available  to  the  trustee  or
exercising  any trust or power  conferred on the trustee with respect to those
senior debt  securities,  provided that any direction shall not be in conflict
with any rule of law or the 1983 Indenture.  Before proceeding to exercise any
right or power under the 1983  Indenture at the direction of the holders,  the
trustee shall be entitled to receive from the holders  reasonable  security or
indemnification  against the costs,  expenses and  liabilities  which might be
incurred by it in complying with any direction.

         The MITTS  Securities  and other  series  of senior  debt  securities
issued under the 1983  Indenture do not have the benefit of any  cross-default
provisions with other indebtedness of ML&Co.

         ML&Co. is required to furnish to the trustee  annually a statement as
to  the  fulfillment  by  ML&Co.  of all of its  obligations  under  the  1983
Indenture.


                          PROJECTED PAYMENT SCHEDULE

         Solely for  purposes  of applying  final  Treasury  regulations  (the
"Final Regulations") concerning the United States Federal income tax treatment
of contingent  payment debt  instruments to the MITTS  Securities,  ML&Co. has
determined that the projected  payment  schedule for the MITTS Securities will
consist  of  payment  on the  maturity  date  of the  principal  amount  and a
Supplemental  Redemption  Amount equal to $4.1078 per Unit. This represents an
estimated yield on the MITTS Securities  equal to 6.96% per annum,  compounded
semiannually.

         The  projected  payment   schedule,   including  both  the  projected
Supplemental   Redemption   Amount  and  the  estimated  yield  on  the  MITTS
Securities,  has been  determined  solely for United States Federal income tax
purposes,  for  purposes  of  applying  the  Final  Regulations  to the  MITTS
Securities, and is not a prediction of what the actual Supplemental Redemption
Amount will be, or that the actual  Supplemental  Redemption  Amount will even
exceed zero.

         The  following  table sets forth the amount of interest  that will be
deemed to have  accrued  with  respect  to each  Unit of the MITTS  Securities
during  each  accrual  period over the term of the  Securities  based upon the
projected  payment  schedule  for the  MITTS  Securities,  including  both the
projected  Supplemental  Redemption  Amount and the  estimated  yield equal to
6.96% per annum, compounded semiannually, as determined by ML&Co. for purposes
of the application of the Final Regulations to the MITTS Securities:
    

   
<TABLE>
<CAPTION>

                                                        Interest Deemed to        Total Interest Deemed
                                                       Accrue During Accrual        to Have Accrued on
                   Accrual Period                      Period (per Unit)          MITTS Securities as of End
                                                                                  of Accrual Period
                                                                                         (per Unit)

<S>                                                         <C>                     <C> 

June 3, 1997 through  June 14, 1997.................        $0.0206                 $0.0206
June 15, 1997 through  December 14, 1997............        $0.3506                 $0.3712
December 15, 1997 through  June 14, 1998............        $0.3590                 $0.7302
June 15, 1998 through  December 14, 1998............        $0.3734                 $1.1036
December 15, 1998 through  June 14, 1999............        $0.3864                 $1.4900
June 15, 1999 through  December 14, 1999............        $0.3999                 $1.8899
December 15, 1999 through  June 14, 2000............        $0.4138                 $2.3037
June 15, 2000 through  December 14, 2000............        $0.4281                 $2.7318
June 15, 2001 through  December 14, 2001............        $0.4585                 $3.6334
December 15, 2001 through  June 14, 2002............        $0.4744                 $4.1078
- ---------------
Projected Supplemental Redemption Amount = $4.1078 per Unit. 
</TABLE>

         Investors  in the MITTS  Securities  may also  obtain  the  projected
payment  schedule,  as determined by ML&Co. for purposes of the application of
the Final Regulations to the MITTS Securities, by submitting a written request
for such information to Merrill Lynch & Co., Inc.,  Attn:  Darryl W. Colletti,
Office of the  Corporate  Secretary,  100 Church  Street,  New York,  New York
10080.


                      WHERE YOU CAN FIND MORE INFORMATION

         We file reports, proxy statements and other information with the SEC.
Our SEC filings are also  available over the Internet at the SEC's web site at
http://www.sec.gov.  You may  also  read  and  copy  any  document  we file by
visiting the SEC's public  reference rooms in Washington,  D.C., New York, New
York, and Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further
information  about the public  reference  rooms.  You may also inspect our SEC
reports and other  information at the New York Stock Exchange,  Inc., 20 Broad
Street, New York, New York 10005.

         We have  filed a  registration  statement  on Form  S-3  with the SEC
covering the MITTS Securities and other securities. For further information on
ML&Co.  and  the  MITTS  Securities,  you  should  refer  to our  registration
statement and its exhibits.  This prospectus summarizes material provisions of
contracts and other documents that we refer you to. Because the prospectus may
not contain all the information that you may find important, you should review
the full text of these  documents.  We have included copies of these documents
as exhibits to our registration statement of which this prospectus is a part.


               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

         The SEC allows us to incorporate by reference the information we file
with them, which means:

o        incorporated documents are considered part of the prospectus;

o        we can disclose important information to you by referring you to those
         documents; and

o        information  that we  file  with  the SEC  will  automatically  update
         and supersede this incorporated information.

         We  incorporate  by reference the  documents  listed below which were
filed with the SEC under the Exchange Act:

o        annual report on Form 10-K for the year ended December 25, 1998; and

o        current reports on Form 8-K dated December 28, 1998,  January 19, 1999,
         February 17, 1999,  February 18, 1999,  February 22, 1999, February 23,
         1999 and March 26, 1999.

         We also  incorporate by reference each of the following  documents that
we will file with the SEC after the date of this prospectus  until this offering
is completed or after the date of this initial registration statement and before
the effectiveness of the registration statement:

o        reports filed under Sections 13(a) and (c) of the Exchange Act;

o        definitive  proxy or information  statements  filed under Section 14 of
         the  Exchange  Act in  connection  with  any  subsequent  stockholders'
         meeting; and

o        any reports filed under Section 15(d) of the Exchange Act.

         You should rely only on  information  contained  or  incorporated  by
reference in this prospectus.  We have not, and MLPF&S has not, authorized any
other person to provide you with different information. If anyone provides you
with different or inconsistent information,  you should not rely on it. We are
not,  and  MLPF&S is not,  making  an offer to sell  these  securities  in any
jurisdiction where the offer or sale is not permitted.

         You should assume that the  information  appearing in this prospectus
is accurate as of the date of this  prospectus  only. Our business,  financial
condition and results of operations may have changed since that date.

         You may  request a copy of any filings  referred to above  (excluding
exhibits), at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan, Jr.,  Corporate  Secretary's  Office,  Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.


                             PLAN OF DISTRIBUTION

         This  prospectus has been prepared in connection with secondary sales
of the MITTS  Securities  and is to be used by MLPF&S when  making  offers and
sales related to market-making transactions in the MITTS Securities.

         MLPF&S  may  act  as  principal  or  agent  in  these   market-making
transactions.

         The MITTS  Securities  may be offered on the NYSE or off the exchange
in negotiated transactions or otherwise.

         The  distribution  of  the  MITTS  Securities  will  conform  to  the
requirements set forth in the applicable  sections of Rule 2720 of the Conduct
Rules of the NASD.
    


                                    EXPERTS

   
         The  consolidated   financial  statements  and  the  related  financial
statement schedule  incorporated in this prospectus by reference from the Annual
Report on Form 10-K of Merrill  Lynch & Co.,  Inc.  and  subsidiaries  have been
audited  by  Deloitte & Touche  LLP,  independent  auditors,  as stated in their
reports  (which  express  an  unqualified   opinion  and  which  report  on  the
consolidated  financial  statements  includes an  explanatory  paragraph for the
change in  accounting  method  for  certain  internal-use  software  development
costs),   which  are  incorporated  herein  by  reference,   and  have  been  so
incorporated  in  reliance  upon the  reports  of such  firm  given  upon  their
authority as experts in accounting and auditing.
    


<PAGE>
   
The information in this prospectus is not complete and may be changed.  We may
not sell these  securities  until the  registration  statement  filed with the
Securities  and Exchange  Commission is effective.  This  prospectus is not an
offer to sell these  securities and it is not soliciting an offer to buy these
securities in any state where the offer or sale is not permitted.
    

                             Subject to Completion
   
                  Preliminary Prospectus dated March 29, 1999
    
P R O S P E C T U S
- -------------------
   
                           Merrill Lynch & Co., Inc.

      Merrill Lynch  EuroFund   Market  Index Target-Term   Securities(R)  due
                          February 28, 2006 
                             "MITTS(R) Securities"
                         $10 principal amount per unit


         This prospectus is to be used by Merrill Lynch & Co.,  Merrill Lynch,
Pierce, Fenner & Smith Incorporated,  our wholly-owned subsidiary, when making
offers and sales related to market-making transactions in the MITTS Securities.
    


<PAGE>


   

<TABLE>
<CAPTION>

 The MITTS Securities:                                                          Payment at Maturity:
 <S>                                                                            <C>

o   100% principal protection at maturity                                       o  On the maturity date, for each unit of the MITTS
o   No payments  before the  maturity date                                         Securities you own, we will pay you an amount
o   Senior unsecured debt securities of Merrill Lynch & Co., Inc.                  equal to the sum of the principal amount of each
o   Linked to the value of the Merrill Lynch EuroFund, a registered mutual fund    unit and an additional amount based on the
o   The MITTS Securities are listed on the American Stock Exchange  under the      percentage increase, if any, in the total return
    symbol "EFM"                                                                   value of the Class B shares of the Merrill Lynch
                                                                                   EuroFund, reduced by an adjustment factor of 
                                                                                   2.6% of the EuroFund's value each year, as 
                                                                                   described in this prospectus
                                                                                o  ML&Co.  will pay you by  delivering  to you a 
                                                                                   number of Class D shares of the Merrill  Lynch  
                                                                                   EuroFund  with an equal value,  based upon the 
                                                                                   market price for Class D Shares shortly before
                                                                                   the stated  maturity of the MITTS  Securities
                                                                                o  You will receive no less than the principal 
                                                                                   amount of your MITTS Securities


</TABLE>

               Investing in the MITTS Securities involves risks.
                    See "Risk Factors" beginning on page 3.
    


         Neither  the  Securities  and  Exchange   Commission  nor  any  state
securities commission has approved or disapproved of these MITTS Securities or
determined if this prospectus is truthful or complete.  Any  representation to
the contrary is a criminal offense.

   
         The sale price of the MITTS Securities will be the prevailing  market
price at the time of sale.
    
                              ------------------
                              Merrill Lynch & Co.
                              ------------------

                    The date of this prospectus is , 199 .
   
- -----------
"MITTS" and "Market Index Target-Term Securities" are registered service marks
owned by Merrill Lynch & Co., Inc.
    


<PAGE>


   
                               TABLE OF CONTENTS

                                                                      Page

RISK FACTORS.............................................................3

MERRILL LYNCH & CO., INC.................................................7

RATIO OF EARNINGS TO FIXED CHARGES.......................................8

DESCRIPTION OF THE MITTS SECURITIES......................................9

THE EUROFUND INDEX......................................................16

OTHER TERMS.............................................................17

PROJECTED PAYMENT SCHEDULE..............................................21

WHERE YOU CAN FIND MORE INFORMATION.....................................22
    

INCORPORATION OF INFORMATION WE FILE WITH THE SEC.......................22

   
PLAN OF DISTRIBUTION....................................................23

EXPERTS.................................................................23
    


<PAGE>


                                 RISK FACTORS

   
         Your  investment  in the MITTS  Securities  will involve  risks.  You
should  carefully  consider the following  discussion of risks before deciding
whether an investment in the MITTS Securities is suitable for you.

You may not earn a return on your investment

         You should be aware that at maturity  you will receive no more than a
number  of  Class D shares  of the  EuroFund  in an  amount  equal  in  value,
determined  based on the market price of the Class D shares shortly before the
maturity date, to the principal amount, if these shares are available,  if the
average value of the index over five trading days shortly  before the maturity
date is less than  15.53.  This will be true even if, at some time  during the
life of the MITTS  Securities,  the value of the EuroFund  index, as adjusted,
was higher than 15.53,  the value of the EuroFund  Index on the date the MITTS
Securities  were priced for initial sale to the public,  but later falls below
15.53.

Your yield on the MITTS  Securities will not equal the yield on Class B Shares
or the securities held by the EuroFund

         The yield you earn on the MITTS  Securities,  if any, will not be the
same as the yield that you would earn if you directly  owned Class B Shares of
the EuroFund.  In calculating the value of the EuroFund  index,  the AMEX will
reduce  the  value  of the  EuroFund  index by 2.6%  each  year.  This  annual
reduction  will be applied on a pro rata basis each calendar  day.  Because of
these cumulative daily  reductions,  the value of the EuroFund index over time
will  increasingly  diverge  from the  actual  value of the Class B Shares and
their  distributions  had  you  directly  owned  the  Class  B  Shares.  These
reductions  would  not apply if you  directly  owned the Class B Shares of the
EuroFund.

         In addition, the yield you earn on the MITTS Securities, if any, will
not be the same yield that you would earn if you directly owned the securities
held by the EuroFund. Because the EuroFund's return, as measured by the index,
is determined  after  deductions for annual fees and expenses and  transaction
fees,  the  EuroFund's  return,  and  consequently  the  return  on the  MITTS
Securities,  will be less than the  return you would  realize if you  directly
owned the securities held by the EuroFund.
    

Your yield may be lower than the yield on a standard debt security of 
comparable maturity

   
         The  amount we pay you at  maturity  may be less than the  return you
could earn on other similar investments. Your yield may be less than the yield
you would earn if you bought a standard senior  non-callable  debt security of
Merrill Lynch & Co., Inc. with the same maturity date. Your investment may not
reflect the full opportunity cost to you when you consider  inflation or other
factors that affect the time value of money.

There may be an uncertain trading market for the MITTS Securities in the future

         Although the MITTS Securities are listed on the NYSE under the symbol
"EFM," you cannot assume that a trading  market will continue to exist for the
MITTS  Securities.  If a trading market in the MITTS  Securities  continues to
exist,  you cannot assume that there will be liquidity in the trading  market.
The  continued  existence of a trading  market for the MITTS  Securities  will
depend  on  our  financial   performance  and  other  factors   including  the
appreciation, if any, of the value of the index.

         If a limited trading market for the MITTS Securities  exists, and you
do not wish to hold your investment  until maturity,  fewer buyers may want to
purchase your MITTS  Securities.  This may affect the price you receive if you
sell before maturity.

There are many factors affecting the trading value of the MITTS Securities

         We believe  that the value of the  EuroFund  index and by a number of
other factors will affect the trading value of the MITTS  Securities.  Some of
these factors  interrelate in complex ways; as a result, the effect of any one
factor may offset or magnify  the  effect of  another  factor.  The  following
paragraphs  describe  the  expected  impact on the trading  value of the MITTS
Securities given a change in a specific factor,  assuming all other conditions
remain constant.

o             The value of the EuroFund index. We expect that the market value
              of the MITTS Securities will depend  substantially on the amount
              by which the value of the  EuroFund  index  exceeds  or does not
              exceed 15.53.  If you choose to sell your MITTS  Securities when
              the value of the EuroFund index exceeds 15.53 on any given date,
              you may receive  substantially less than the value that would be
              payable at maturity  based on that value of the  EuroFund  index
              because of the expectation  that the value of the EuroFund index
              will  continue to fluctuate  until  shortly  before the maturity
              date when the average value of the index is  determined.  If you
              choose  to sell  your  MITTS  Securities  when the  value of the
              EuroFund index is below, or not sufficiently  above,  15.53, you
              may  receive  less than the  principal  amount per unit of MITTS
              Securities  and lose a substantial  portion of your  investment.
              Political,  economic  and other  developments  that  affect  the
              securities  owned by the  EuroFund  may also affect the value of
              the EuroFund Index and the value of the MITTS Securities.

         o    Interest rates.  Because we will pay at a minimum, the principal
              amount per unit of the MITTS  Securities at maturity,  we expect
              that changes in interest  rates will affect the trading value of
              the MITTS  Securities . In general,  if interest rates increase,
              we expect that the trading  value of the MITTS  Securities  will
              decrease, and, conversely, if interest rates decrease, we expect
              the trading value of the MITTS Securities will increase.

         o    Volatility of the EuroFund index. Volatility is the term used to
              describe  the  size  and   frequency  of  market   fluctuations.
              Generally, if the volatility of the EuroFund index increases, we
              expect  that the  trading  value of the  MITTS  Securities  will
              increase. If the volatility of the EuroFund index decreases,  we
              expect  that the  trading  value of the  MITTS  Securities  will
              decrease.

         o    Time remaining to maturity.  The MITTS Securities may trade at a
              value above that which  would be expected  based on the level of
              interest rates and the EuroFund  index.  This  difference  would
              reflect a "time  premium"  due to  expectations  concerning  the
              value of the EuroFund  index during the period  before  February
              28, 2006, the stated maturity of the MITTS Securities.  However,
              as the  time  remaining  to  maturity  of the  MITTS  Securities
              decreases,  we  expect  that this time  premium  will  decrease,
              lowering the trading value of the MITTS Securities.

         o    Changes  in  our  credit  ratings.  Our  credit  ratings  are an
              assessment of our ability to pay our obligations.  Consequently,
              real or anticipated changes in our credit ratings may affect the
              trading  value of the MITTS  Securities.  However,  because your
              return on your MITTS  Securities  is  dependent  upon factors in
              addition to our ability to pay our  obligations  under the MITTS
              Securities,  such as the percentage increase in the value of the
              index at maturity, an improvement in our credit ratings will not
              reduce investment risks related to the MITTS Securities.

         It is important for you to  understand  that the impact of one of the
factors  specified  above,  such as an increase in interest rates,  may offset
some or all of any  increase  in the  trading  value of the  MITTS  Securities
attributable to another factor, such as an increase in the EuroFund index.

         In general,  assuming  all  relevant  factors are held  constant,  we
expect that the effect on the trading value of the MITTS Securities of a given
change in most of the factors  listed above will be less if it occurs later in
the term of the MITTS  Securities than if it occurs earlier in the term of the
MITTS  Securities,  except that we expect that the effect on the trading value
of the MITTS  Securities of a given increase or decrease in the EuroFund index
will be greater if it occurs later in the term of the MITTS Securities than if
it occurs earlier in the term of the MITTS Securities.
    

No shareholder's rights

   
         You will not be entitled to any rights with  respect to any shares of
the  EuroFund,  including,  without  limitation,  voting  rights and rights to
receive any dividends or distributions on the shares, until we deliver Class D
Shares at the maturity of the MITTS Securities.  For example,  if the EuroFund
sets a record  date for a matter to be voted on by  holders  of Class D Shares
prior to our  delivery  of Class D Shares to you,  you will not be entitled to
vote on that  matter.  You  should  be aware  that if  Class D  Shares  of the
EuroFund are not available for sale to new investors  immediately prior to the
stated  maturity  date,  we will pay you the amounts due to you for your MITTS
Securities in cash instead of delivering Class D Shares on the stated maturity
date.

 Amounts payable on the MITTS Securities may be limited by state law

         New York  State  laws  govern  the  indenture  under  which the MITTS
Securities  are  issued.  New York has  usury  laws that  limit the  amount of
interest that can be charged and paid on loans, which includes debt securities
like the MITTS  Securities.  Under  present New York law,  the maximum rate of
interest is 25% per annum on a simple interest basis. This limit may not apply
to debt securities in which $2,500,000 or more has been invested.
    

         While we believe  that New York law would be given  effect by a state
or Federal court sitting outside of New York, many other states also have laws
that  regulate  the  amount of  interest  that may be charged to and paid by a
borrower. We will promise, for the benefit of holders of the MITTS Securities,
to the extent  permitted by law, not to voluntarily  claim the benefits of any
laws concerning usurious rates of interest.

   
Purchases and sales by  us and our affiliates may affect your return

         We and our affiliates may from time to time buy or sell shares of the
EuroFund or shares of the companies in which the EuroFund invests, for our own
accounts,  for business  reasons or in connection with hedging our obligations
under the MITTS Securities. These transactions could affect the EuroFund index
in a manner that would be adverse to your investment in the MITTS Securities.

Potential conflicts of interest

         Our subsidiary, Merrill Lynch, Pierce, Fenner & Smith Incorporated or
MLPF&S,  is our agent for the purposes of  calculating  the value of the index
and the amount  payable to you at maturity.  In some  circumstances,  MLPF&S's
role as our subsidiary and its  responsibilities  as calculation agent for the
MITTS  Securities  could give rise to conflicts of interests.  These conflicts
could occur, for instance,  in connection with its determination as to whether
the value of the index can be  calculated  on a particular  trading day, or in
connection  with judgments that it would be required to make in the event of a
discontinuance    of   the   index.    See    "Description    of   the   MITTS
Securities--Adjustments   to  the  Index;   Market   Disruption   Events"  and
"--Discontinuance  of the Index" in this  prospectus.  MLPF&S is  required  to
carry  out its  duties  as  calculation  agent in good  faith  and  using  its
reasonable  judgment.  However,  you should be aware  that  because we control
MLPF&S, potential conflicts of interest could arise.

         We have entered into an arrangement  with one of our  subsidiaries to
hedge the market risks  associated  with our  obligation to pay amounts due at
maturity on the MITTS Securities.  This subsidiary expects to make a profit in
connection with this  arrangement.  We did not seek  competitive bids for this
arrangement from unaffiliated parties.
    

Other Considerations

   
         You should  reach an  investment  decision  with  regard to the MITTS
Securities  only after  carefully  considering  the  suitability  of the MITTS
Securities in the light of your particular circumstances.

         You should also  consider  the tax  consequences  of investing in the
MITTS Securities and should consult with your tax adviser.
    


<PAGE>


   
                           MERRILL LYNCH & CO., INC.

         We  are a  holding  company  that,  through  our  U.S.  and  non-U.S.
subsidiaries  and  affiliates  such as Merrill Lynch,  Pierce,  Fenner & Smith
Incorporated,  Merrill Lynch Government Securities Inc., Merrill Lynch Capital
Services,  Inc.,  Merrill Lynch  International,  Merrill Lynch Capital Markets
Bank Ltd., Merrill Lynch Asset Management L.P. and Merrill Lynch Mercury Asset
Management,  provides investment,  financing, advisory, insurance, and related
products on a global basis, including:

         o   securities brokerage, trading and underwriting;

         o   investment banking, strategic services, including mergers and 
             acquisitions and other corporate finance advisory activities;

         o   asset management and other investment advisory and recordkeeping 
             services;

         o   trading and brokerage of swaps, options, forwards, futures and 
             other derivatives;

         o   securities clearance services;

         o   equity, debt and economic research;  

         o   banking, trust and lending services, including mortgage lending 
             and related services; and

         o   insurance sales and underwriting services.

We provide these  products and services to a wide array of clients,  including
individual   investors,   small   businesses,    corporations,    governments,
governmental agencies and financial institutions.

         Our principal  executive office is located at World Financial Center,
North Tower, 250 Vesey Street,  New York, New York 10281; our telephone number
is (212) 449-1000.

         If you  want  to find  more  information  about  us,  please  see the
sections entitled "Where You Can Find More Information" and  "Incorporation of
Information We File with the SEC" in this prospectus.

         In this prospectus, "ML&Co.", "we", "us" and "our" refer specifically
to Merrill Lynch & Co., Inc., the holding company. ML&Co. is the issuer of the
MITTS Securities described in this prospectus.
    


<PAGE>


   
                      RATIO OF EARNINGS TO FIXED CHARGES

         In 1998, we acquired the outstanding shares of Midland Walwyn,  Inc.,
in a  transaction  accounted  for  as a  pooling-of-interests.  The  following
information for the fiscal years 1994 through 1997 has been restated as if the
two entities had always been combined.

         The following  table sets forth our historical  ratios of earnings to
fixed charges for the periods indicated:


                                         Year Ended Last Friday in December
                                  1994     1995     1996     1997     1998
                                  ----     ----     ----     ----     ----

Ratio of earnings to fixed 
charges(a).........               1.2      1.2      1.2      1.2      1.1


- ----------
(a)   The effect of combining Midland Walwyn did not change the ratios reported
      for the fiscal years 1994 through 1997.


     For the purpose of  calculating  the ratio of earnings to fixed  charges,
"earnings" consist of earnings from continuing  operations before income taxes
and fixed  charges,  excluding  capitalized  interest and  preferred  security
dividend requirements. "Fixed charges" consist of interest costs, the interest
factor in rentals,  amortization  of debt issuance costs,  preferred  security
dividend requirements of subsidiaries, and capitalized interest.
    


<PAGE>


                      DESCRIPTION OF THE MITTS SECURITIES

   
         On September 3, 1998, ML&Co.  issued an aggregate principal amount of
$77,000,000 or 7,700,000 of the MITTS Securities.

         The  MITTS  Securities  were  issued  as  a  series  of  senior  debt
securities  under the 1983  Indenture,  which is more fully  described in this
prospectus.
    

         The MITTS Securities will mature on February 28, 2006.

   
         While  at  maturity  a  beneficial  owner  of a MITTS  Security  will
receive,  if available,  the number of Class D Shares of the EuroFund equal in
value,  determined  based on the  Maturity  NAV,  to the sum of the  principal
amount of each MITTS Security plus the Supplemental Redemption Amount, if any,
there  will be no other  payment  of  interest,  periodic  or  otherwise.  See
"--Delivery at Maturity".

         The MITTS  Securities  are not subject to redemption by ML&Co.  or at
the option of any beneficial owner before maturity.  Upon the occurrence of an
Event of Default with respect to the MITTS  Securities,  beneficial  owners of
the MITTS Securities may accelerate the maturity of the MITTS  Securities,  as
described  under "- Events of Default  and  Acceleration"  and "Other  Terms -
Events of Default" in this prospectus.

         The MITTS Securities were issued in denominations of whole units.
    

Delivery at Maturity

   
         At maturity,  a beneficial owner of a MITTS Security will be entitled
to  receive  the  number  of Class D Shares  of the  EuroFund  equal in value,
determined  based on the Maturity NAV, to the  principal  amount of each MITTS
Security  plus the  Supplemental  Redemption  Amount,  if any, all as provided
below. The number of Class D Shares delivered by ML&Co. will be rounded to the
nearest  one-thousandth  of a share. If the Ending Index Value does not exceed
the Starting  Index  Value,  a beneficial  owner of a MITTS  Security  will be
entitled to receive only the number of Class D Shares of the EuroFund equal in
value to the principal amount of each MITTS Security,  determined based on the
Maturity NAV.

         "Maturity  NAV" shall mean the net asset value for the Class D Shares
of the EuroFund as  calculated  by the EuroFund on the first  Calculation  Day
during the Calculation Period; provided, however, if no Calculation Days occur
during the  Calculation  Period  because  of Market  Disruption  Events,  then
Maturity  NAV  shall  mean the net  asset  value for the Class D Shares of the
EuroFund as calculated by the EuroFund on the last  scheduled  Index  Business
Day  in the  Calculation  Period  regardless  of the  occurrence  of a  Market
Disruption Event on that day.

         Notwithstanding the foregoing, if the EuroFund is not issuing Class D
Shares to new  investors  in the  EuroFund on the date  Maturity  NAV is to be
determined,  ML&Co. may, in lieu of delivering Class D Shares of the EuroFund,
pay cash in an amount  equal to the sum of the  principal  amount of the MITTS
Securities and the Supplemental Redemption Amount, if any.

         The  "Supplemental  Redemption  Amount" for a MITTS  Security will be
determined by the calculation agent and will equal:

<TABLE>
<CAPTION>

<S>                                                      <C>

Principal amount of each MITTS Security ($10 per unit) X Ending Index Value - Starting Index Value
                                                         -----------------------------------------
                                                                      Starting Index Value
</TABLE>


    
provided, however, that in no event will the Supplemental Redemption Amount be
less than zero.

   
         The "Starting  Index Value" equals 15.53,  which was the value of the
EuroFund Index on the date the MITTS Securities were initially priced for sale
to the public (the  "Pricing  Date").  The value of the EuroFund  Index on the
Pricing  Date was set to match  the net  asset  value of Class B Shares of the
EuroFund on the Pricing Date.

         The "Ending Index Value" will be determined by the calculation  agent
and will the equal the closing value of the EuroFund  Index  determined on the
first  Calculation Day during the Calculation  Period.  If no Calculation Days
occur during the Calculation Period because of Market Disruption Events,  then
the Ending  Index Value will equal the  closing  value of the  EuroFund  Index
determined on the last scheduled Index Business Day in the Calculation  Period
regardless of the occurrence of a Market Disruption Event on that day.

         The  "Calculation  Period"  means the period from and  including  the
seventh  scheduled  Index  Business  Day  prior  to the  maturity  date to and
including the second scheduled Index Business Day prior to the maturity date.

         "Calculation Day" means any Index Business Day during the Calculation
Period on which a Market Disruption Event has not occurred.

         An "Index  Business  Day" is a day on which the NYSE and the AMEX are
open for trading and the AMEX calculates and publishes the EuroFund Index.

         "Market Disruption  Event" means the EuroFund 
    

o             is unable or otherwise  fails to issue a net asset value for any
              series of shares of the EuroFund  after the close of business on
              the NYSE but before  11:00 p.m.,  New York City time on the same
              day or

   
o             suspends redemption of shares of the EuroFund.

         All determinations made by the calculation agent shall be at the sole
discretion  of the  calculation  agent  and,  absent  a  determination  by the
calculation  agent of a manifest  error,  shall be conclusive for all purposes
and binding on ML&Co. and beneficial owners of the MITTS Securities.
    


<PAGE>


Hypothetical Returns

   
         The following table illustrates,  for a range of hypothetical  Ending
Values:

          o   the Ending Index Value used to calculate the Supplemental 
              Redemption Amount;

          o   the percentage change from the Starting Index Value to the Ending
              Index Value;

          o   the total value of Class D Shares deliverable at maturity for 
              each $10  principal amount of MITTS Securities;

          o   the total rate of return to beneficial owners of the MITTS 
              Securities;

          o   the pretax annualized rate of return  on the MITTS Securities; 
              and 

          o   the pretax annualized rate of return of  class B Shares.
<TABLE>
<CAPTION>

                                        Total Value of
                                        Class D Shares
               Percentage Change        Deliverable at                               Pretax              Pretax
               of Ending Index          Maturity per $10         Total Rate of     Annualized Rate    Annualized Rate
Hypothetical   Value                    Principal                Return on the     of Return on the   of Return of
Ending Index   Over the Starting        Amount of                MITTS                MITTS              Class B
Value          Index Value              MITTS Securities         Securities        Securities(1)       Shares(1)(2)
- ----------------------------------------------------------------------------------------------------------------------
    

      <S>                 <C>                  <C>                   <C>             <C>              <C>     
        3.11               -80.00%              $10.00               0.00%           0.00%            -18.02%
        6.21               -60.00%              $10.00               0.00%           0.00%             -9.40%
        9.32               -40.00%              $10.00               0.00%           0.00%             -4.17%
       12.42               -20.00%              $10.00               0.00%           0.00%             -0.38%
       15.53(3)              0.00%              $10.00               0.00%           0.00%              2.62%
       18.64                20.00%              $12.00              20.00%           2.45%              5.10%
       21.74                40.00%              $14.00              40.00%           4.54%              7.22%
       24.85                60.00%              $16.00              60.00%           6.37%              9.07%
       27.95                80.00%              $18.00              80.00%           8.00%             10.72%
       31.06               100.00%              $20.00             100.00%           9.47%             12.21%
       34.17               120.00%              $22.00             120.00%          10.80%             13.56%
       37.27               140.00%              $24.00             140.00%          12.03%             14.81%
       40.38               160.00%              $26.00             160.00%          13.17%             15.96%
       43.48               180.00%              $28.00             180.00%          14.22%             17.03%
       46.59               200.00%              $30.00             200.00%          15.21%             18.03%

</TABLE>

- -------------

(1)  The  annualized  rates of return  specified  in the  preceding  table are
     calculated on a semiannual bond equivalent basis.
   
(2)  This rate of return assumes:
     (a) an  initial  investment  of a fixed  amount in the  Series B Shares 
         of the EuroFund;  
     (b) a reinvestment of all cash dividends and  distributions  in the
         Series B Shares of the EuroFund;  
     (c) no transaction fees or expenses;  
     (d) an investment  term from  September 3, 1998 to February 28, 2006; and 
     (e) a final EuroFund Index value equal to the Ending Index Value. 
(3) This is the Starting Index Value.

         The above figures are for purposes of  illustration  only. The actual
investment term, Supplemental Redemption Amount received by investors, and the
resulting  total and pretax  annualized rate of return will depend entirely on
the Starting  Index Value and the actual Ending Index Value  determined by the
calculation agent as provided in this prospectus.
    

Adjustments to the EuroFund Index

   
         If at any  time  the AMEX  changes  the  method  of  calculating  the
EuroFund Index, or the index's value changes,  in any material respect,  or if
the EuroFund  Index is in any other way  modified so that the  EuroFund  Index
does not, in the opinion of the calculation agent,  fairly represent the value
of the EuroFund Index had the changes or  modifications  not been made,  then,
from and  after  that  time,  the  calculation  agent  shall,  at the close of
business  in New York,  New York,  on each date that the  closing  value  with
respect to the Ending Index Value is to be  calculated,  make any  adjustments
as, in the good faith judgment of the calculation  agent,  may be necessary in
order to  arrive at a  calculation  of a value of an index  comparable  to the
EuroFund  Index as if any  changes or  modifications  had not been  made,  and
calculate the closing value with reference to the EuroFund Index, as adjusted.
Accordingly,  if the method of  calculating  the EuroFund Index is modified so
that the value of the  EuroFund  Index is a fraction  or a multiple of what it
would have been if it had not been  modified,  for example,  due to a split in
the EuroFund Index, then the calculation agent shall adjust the EuroFund Index
in order to  arrive  at a value  of the  EuroFund  Index as if it had not been
modified, for example, as if the split had not occurred.
    

Discontinuance of the EuroFund Index

   
         If the AMEX  discontinues  publication  of the EuroFund Index and the
AMEX or another  entity  publishes a successor  or  substitute  index that the
calculation agent determines,  in its sole discretion, to be comparable to the
EuroFund  Index (a  "Successor  Index")  then,  upon the  calculation  agent's
notification of its  determination to the Trustee and ML&Co.,  the calculation
agent will  substitute  the  Successor  Index as calculated by the AMEX or any
other entity for the EuroFund  Index and  calculate  the Ending Index Value as
described  above under  "Delivery  at  Maturity".  Upon any  selection  by the
calculation agent of a Successor Index,  ML&Co. shall cause notice to be given
to holders of the MITTS Securities.

         If the AMEX  discontinues  publication  of the  EuroFund  Index and a
Successor  Index is not  selected  by the  calculation  agent or is no  longer
published on any of the Calculation  Days, the value to be substituted for the
EuroFund  Index for any  Calculation  Day used to calculate  the  Supplemental
Redemption  Amount at maturity  will be a value  computed  by the  calculation
agent for each  Calculation Day in accordance with the procedures last used to
calculate the EuroFund Index before any  discontinuance.  If a Successor Index
is selected or the  calculation  agent  calculates a value as a substitute for
the EuroFund Index as described  below,  the Successor Index or value shall be
substituted for the EuroFund Index for all purposes, including for purposes of
determining whether a Market Disruption Event exists.

         If the AMEX  discontinues  publication of the Index before the period
during which the  Supplemental  Redemption  Amount is to be determined and the
calculation  agent  determines  that no  Successor  Index is available at that
time, then on each Business Day until the earlier to occur of:

          o   the determination of the Adjusted Ending  Value and

          o   a determination by the  calculation agent that a Successor Index
              is available,

the  calculation  agent  shall  determine  the  value  that  would  be used in
computing  the  Supplemental  Redemption  Amount as described in the preceding
paragraph as if that day were a Calculation  Day. The  calculation  agent will
cause notice of each value to be published not less often than once each month
in The Wall Street Journal, or another newspaper of general  circulation,  and
arrange for  information  with respect to these values to be made available by
telephone.

         Notwithstanding these alternative arrangements, discontinuance of the
publication of the Index may adversely affect trading in the MITTS Securities.
    

Events of Default and Acceleration

   
         In case an Event of Default with respect to any MITTS  Securities has
occurred and is  continuing,  the amount  payable to a  beneficial  owner of a
MITTS Security upon any acceleration  permitted by the MITTS Securities,  with
respect to each $10 principal amount of a MITTS Security, will be equal to the
principal amount and the Supplemental Redemption Amount, if any, calculated as
though the date of early  repayment were the stated maturity date of the MITTS
Securities.  See  "Delivery at Maturity" in this  prospectus.  If a bankruptcy
proceeding  is  commenced  in respect of ML&Co.,  the claim of the  beneficial
owner of a MITTS Security may be limited,  under Section 502(b)(2) of Title 11
of the United States Code, to the principal  amount of the MITTS Security plus
an additional amount of contingent  interest  calculated as though the date of
the  commencement  of the  proceeding  were  the  maturity  date of the  MITTS
Securities.

         In case of  default  in  payment  at the  maturity  date of the MITTS
Securities,  whether at their stated maturity or upon  acceleration,  from and
after the maturity date the MITTS Securities shall bear interest, payable upon
demand  of the  beneficial  owners , at the rate of 5.97%  per  annum,  to the
extent  that  payment of any  interest  shall be legally  enforceable,  on the
unpaid amount due and payable on that date in accordance with the terms of the
MITTS  Securities  to the date  payment  of any  amount  has been made or duly
provided for.

 Global Securities

         Description of the Global Securities.

         Beneficial  owners of the MITTS  Securities may not receive  physical
delivery  of the MITTS  Securities  nor may they be entitled to have the MITTS
Securities  registered  in their names.  The MITTS  Securities  currently  are
represented by one or more fully  registered  global  securities.  Each global
security was deposited with, or on behalf of, The Depository  Trust Company or
DTC (DTC,  together  with any successor  thereto,  being a  "depositary"),  as
depositary,  registered in the name of Cede & Co., DTC's partnership  nominee.
Unless and until it is exchanged in whole or in part for MITTS  Securities  in
definitive  form, no global  security may be transferred  except as a whole by
the  depositary  to a  nominee  of  the  depositary  or by a  nominee  of  the
depositary to the  depositary or another  nominee of the  depositary or by the
depositary  or any nominee to a successor  of the  depositary  or a nominee of
that successor.

         So long as DTC, or its  nominee,  is a  registered  owner of a global
security,  DTC or its nominee, as the case may be, will be considered the sole
owner or holder of the MITTS  Securities  represented by a global security for
all  purposes  under  the  1983  Indenture.  Except  as  provided  below,  the
beneficial  owners of the MITTS  Securities  represented by a global  security
will not be entitled to have the MITTS  Securities  represented  by the global
security registered in their names, will not receive or be entitled to receive
physical  delivery of the MITTS  Securities in definitive form and will not be
considered  the  owners or holders  under the 1983  Indenture,  including  for
purposes of receiving any reports delivered by ML&Co. or the trustee under the
1983  Indenture.  Accordingly,  each person owning a beneficial  interest in a
global  security must rely on the procedures of DTC and, if that person is not
a participant of DTC on the procedures of the  participant  through which that
person owns its  interest,  to exercise  any rights of a holder under the 1983
Indenture.  ML&Co.  understands that under existing industry practices, in the
event  that  ML&Co.  requests  any  action  of  holders  or that an owner of a
beneficial  interest in a global  security  desires to give or take any action
which a holder is entitled to give or take under the 1983 Indenture, DTC would
authorize the participants  holding the relevant beneficial  interests to give
or take any action,  and the participants  would authorize  beneficial  owners
owning through those  participants  to give or take action or would  otherwise
act upon the  instructions  of  beneficial  owners.  Conveyance of notices and
other  communications  by DTC to  participants,  by  participants  to indirect
participants  and by  participants  and indirect  participants  to  beneficial
owners will be governed by arrangements  among them,  subject to any statutory
or regulatory requirements as may be in effect from time to time.

          DTC Procedures
    

         The following is based on information furnished by DTC:

   
         DTC is the securities depositary for the MITTS Securities.  The MITTS
Securities were issued as fully registered  securities  registered in the name
of Cede & Co., DTC's partnership  nominee. One or more fully registered global
securities  were issued for the MITTS  Securities in the  aggregate  principal
amount of the MITTS Securities, and were deposited with DTC.

         DTC is a  limited-purpose  trust company organized under the New York
Banking  Law, a  "banking  organization"  within  the  meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing  corporation"
within the meaning of the New York Uniform  Commercial  Code,  and a "clearing
agency"  registered  under to the  provisions of Section 17A of the Securities
and  Exchange  Act  of  1934,  as  amended.  DTC  holds  securities  that  its
participants  deposit  with DTC. DTC also  facilitates  the  settlement  among
participants  of securities  transactions,  such as transfers and pledges,  in
deposited  securities  through electronic  computerized  book-entry changes in
participants' accounts,  thereby eliminating the need for physical movement of
securities certificates. Direct participants of DTC include securities brokers
and  dealers,   banks,  trust  companies,   clearing  corporations  and  other
organizations.  DTC is owned by a number of its direct participants and by the
NYSE, the AMEX and the National Association of Securities Dealers, Inc. Access
to the DTC's system is also available to others such as securities brokers and
dealers,  banks and trust companies that clear through or maintain a custodial
relationship  with a direct  participant,  either directly or indirectly.  The
rules applicable to DTC and its participants are on file with the SEC.

         Purchases of MITTS  Securities  under DTC's system must be made by or
through  direct  participants,  which  will  receive  a credit  for the  MITTS
Securities on DTC's records.  The ownership  interest of each beneficial owner
is in turn to be recorded on the records of direct and indirect  participants.
Beneficial  owners will not  receive  written  confirmation  from DTC of their
purchase,  but beneficial owners are expected to receive written confirmations
providing details of the transaction,  as well as periodic statements of their
holdings,  from the direct participants or indirect participants through which
the  beneficial  owner  entered into the  transaction.  Transfers of ownership
interests in the MITTS  Securities are to be  accomplished  by entries made on
the books of participants acting on behalf of beneficial owners.

         To facilitate  subsequent  transfers,  all MITTS Securities deposited
with DTC are registered in the name of DTC's partnership  nominee,  Cede & Co.
The deposit of MITTS Securities with DTC and their registration in the name of
Cede & Co. effect no change in beneficial  ownership.  DTC has no knowledge of
the actual beneficial  owners of the MITTS  Securities;  DTC's records reflect
only the  identity  of the direct  participants  to whose  accounts  the MITTS
Securities are credited,  which may or may not be the beneficial  owners.  The
participants will remain  responsible for keeping account of their holdings on
behalf of their customers.

         Conveyance  of  notices  and  other  communications  by DTC to direct
participants,  by direct participants to indirect participants,  and by direct
and  indirect   participants   to  beneficial   owners  will  be  governed  by
arrangements among them,  subject to any statutory or regulatory  requirements
as may be in effect from time to time.

         Neither DTC nor Cede & Co. will  consent or vote with  respect to the
MITTS Securities.  Under its usual  procedures,  DTC mails an omnibus proxy to
ML&Co. as soon as possible after the applicable record date. The omnibus proxy
assigns Cede & Co.'s consenting or voting rights to those direct  participants
identified in a listing  attached to the omnibus  proxy to whose  accounts the
MITTS  Securities  are  credited  on the record date  identified  in a listing
attached to the omnibus proxy.

         Principal,  premium, if any, and/or interest, if any, payments on the
MITTS  Securities  will be made in immediately  available  funds to DTC. DTC's
practice is to credit direct participants'  accounts on the applicable payment
date in accordance with their  respective  holdings shown on the  depositary's
records  unless DTC has reason to believe that it will not receive  payment on
that date.  Payments by participants to beneficial  owners will be governed by
standing instructions and customary practices,  as is the case with securities
held for the  accounts of customers  in bearer form or  registered  in "street
name", and will be the  responsibility  of the participant and not of DTC, the
trustee or ML&Co., subject to any statutory or regulatory  requirements as may
be in effect from time to time. Payment of principal,  premium, if any, and/or
interest,  if any,  to DTC is the  responsibility  of ML&Co.  or the  trustee,
disbursement of payments to direct  participants is the responsibility of DTC,
and disbursement of payments to the beneficial owners is the responsibility of
direct and indirect participants.

        Exchange for Certificated Securities

         If:

          o   the depositary is at any time unwilling or unable to continue as 
              depositary and a successor depositary is not appointed by 
              ML&Co. within 60 days,

          o   ML&Co. executes and delivers to the trustee a company order to 
              the effect that the global securities shall be exchangeable, or

          o   an Event of Default under the 1983 Indenture has occurred and is 
              continuing with respect to the MITTS Securities ,

the global  securities will be exchangeable for MITTS Securities in definitive
form  of  like  tenor  and  of  an  equal  aggregate   principal   amount,  in
denominations  of $10 and  integral  multiples of $10.  The  definitive  MITTS
Securities  will be  registered in the name or names as the  depositary  shall
instruct  the  trustee.  It is expected  that  instructions  may be based upon
directions  received  by the  depositary  from  participants  with  respect to
ownership of beneficial interests in the global securities.

         In addition,  ML&Co.  may decide to discontinue  use of the system of
book-entry  transfers through the depositary.  In that event, MITTS Securities
in definitive form will be printed and delivered.

         The  information in this section  concerning DTC and DTC's system has
been  obtained  from sources that ML&Co.  believes to be reliable,  but ML&Co.
takes no responsibility for its accuracy .

Same-Day Settlement and  Payment

         ML&Co.  will make all  payments  of  principal  and the  Supplemental
Redemption Amount, if any, in immediately available funds so long as the MITTS
Securities are maintained in book-entry form.
    


<PAGE>


                              THE EUROFUND INDEX

Calculation of the EuroFund Index

   

         The AMEX has set the starting  value of the  EuroFund  Index to equal
the net asset value of one Class B Share of the EuroFund on the Pricing  Date.
Thereafter, the AMEX will calculate the value of the EuroFund Index on any day
by multiplying the current Index Share Multiplier by the most recent net asset
value  per Class B Share  announced  by the  EuroFund.  For  purposes  of this
calculation, any declared but unpaid Cash Distribution ,as defined below, will
be added back and included in the "net asset  value" of the EuroFund  from and
including  the  ex-dividend  date  related  to any  Cash  Distribution  to but
excluding the date that any Cash  Distribution is paid to holders of the Class
B Shares.

     The  value  of the  EuroFund  Index is reported on the AMEX and Bloomberg
under the symbel "EFI" and on Reuters under the symbol ".EFI."

    


Calculation of the Index Share Multiplier

   
         The  Index  Share   Multiplier   shall   initially  be  set  to  one,
representing  one Class B Share of the EuroFund.  If the EuroFund  distributes
any cash dividends or distributions of any character to holders of the Class B
Shares (a "Cash  Distribution"),  then the  Index  Share  Multiplier  shall be
increased  by a percentage  of Class B Shares  equal to the Cash  Distribution
divided by the net asset value for Class B Shares  calculated  by the EuroFund
on the date that any Cash  Distribution  is paid to holders of Class B Shares.
If a Market  Disruption Event has occurred on the day any Cash Distribution is
paid, the adjustment to the Index Share  Multiplier  shall be postponed  until
the next succeeding Index Business Day on which a Market  Disruption Event has
not occurred. The Index Share Multiplier shall also be adjusted by the AMEX to
reflect certain stock splits, reverse stock splits or share dividends that may
occur with respect to the Class B Shares.

         Each  calendar  day,  the AMEX shall reduce the value of the EuroFund
Index by a  percentage  equal to 2.6% divided by 365 and reset the Index Share
Multiplier  so that the product of the net asset  value and the revised  Index
Share  Multiplier  equals the value of the  EuroFund  Index so  reduced.  If a
Market Disruption Event occurs on any day on which the EuroFund Index value is
to be determined,  then the foregoing adjustment to the Index Share Multiplier
shall  occur  on the  next  succeeding  Index  Business  Day on which a Market
Disruption Event has not occurred.
    

The EuroFund

         The EuroFund has stated that its  investment  objectives  are to seek
capital appreciation  primarily through investment in equities of corporations
domiciled in European  countries.  Current  income from dividends and interest
will not be an important consideration in selecting portfolio securities.  The
EuroFund has stated that it anticipates that under normal market conditions at
least 80% of its net assets  will  consist of European  corporate  securities,
primarily common stocks and securities convertible into common stock.

         The EuroFund is a diversified, open-end management investment company
under the Investment Company Act.

   
         The EuroFund has publicly  disclosed its intention to distribute  all
of its net  investment  income,  if  any.  The  EuroFund  has  indicated  that
dividends  from the net  investment  income are paid at least annually and all
net realized capital gains, if any, are distributed to the shareholders of the
EuroFund annually.

         The  EuroFund  is subject  to the  registration  requirements  of the
Securities Act and the Investment Company Act. Accordingly, the EuroFund files
prospectuses,  statements of additional information,  reports, proxy and other
information  statements and other  information  with the SEC. ML&Co.  makes no
representation  or  warranty  as to  the  accuracy  or  completeness  of  that
information.
    

         The foregoing summary of the policies of the EuroFund reflect certain
investment  restrictions  which are subject to change by  shareholders  of the
EuroFund at any time.

   
         The EuroFund is managed by Merrill Lynch Asset  Management,  L.P., an
affiliate of ML&Co. The EuroFund itself is governed by an independent board of
directors.

         The EuroFund has no obligations with respect to the MITTS Securities.
This prospectus  relates only to the MITTS Securities  offered hereby and does
not relate to the Class B or Class D shares of the EuroFund.  The  information
contained in this prospectus  regarding the EuroFund has been derived from the
publicly available  documents  described above. ML&Co. has not participated in
the  preparation of these  documents or made any due diligence  inquiries with
respect  to the  EuroFund  in  connection  with  the  offering  of  the  MITTS
Securities.  ML&Co.  makes no  representation  that these  publicly  available
documents or any other publicly available  information  regarding the EuroFund
are accurate or  complete.  Furthermore,  there can be no  assurance  that all
events occurring prior to the date of this  prospectus,  including events that
would affect the accuracy or completeness of the publicly available  documents
described in the preceding  paragraph,  that would affect the EuroFund  index,
and therefore the trading  price of the MITTS  securities,  have been publicly
disclosed. Subsequent disclosure of any events or the disclosure of or failure
to disclose  material  future events  concerning the EuroFund could affect the
supplemental  redemption amount to be received at the stated maturity date and
therefore the trading value of the MITTS Securities.


                                  OTHER TERMS

         ML&Co.  issued  the  MITTS  Securities  as a series  of  senior  debt
securities under the 1983 Indenture, dated as of April 1, 1983, as amended and
restated,  between ML&Co. and The Chase Manhattan Bank, as trustee.  A copy of
the 1983  Indenture  is  filed as an  exhibit  to the  registration  statement
relating  to the MITTS  Securities  of which this  prospectus  is a part.  The
following  summaries of the material  provisions of the 1983 Indenture are not
complete and are subject to, and qualified in their  entirety by reference to,
all provisions of the 1983  Indenture,  including the  definitions of terms in
the 1983 Indenture .

         ML&Co.  may issue series of senior debt  securities from time to time
under the 1983 Indenture, without limitation as to aggregate principal amount,
in one or more  series  and upon  terms as  ML&Co.  may  establish  under  the
provisions of the 1983 Indenture.

         The 1983  Indenture  and the MITTS  Securities  are  governed  by and
construed in accordance with the laws of the State of New York.

         ML&Co.  may issue senior debt  securities  with terms  different from
those of senior debt securities previously issued, and issue additional senior
debt securities of a previously issued series of senior debt securities.

         The senior debt  securities  are  unsecured and rank equally with all
other unsecured and  unsubordinated  indebtedness of ML&Co.  However,  because
ML&Co. is a holding company, the rights of ML&Co. and its creditors, including
the holders of senior debt  securities,  to participate in any distribution of
the  assets  of any  subsidiary  upon its  liquidation  or  reorganization  or
otherwise  are  necessarily  subject to the prior  claims of  creditors of the
subsidiary,  except to the extent that a bankruptcy court may recognize claims
of ML&Co.  itself as a creditor of the  subsidiary . In  addition,  dividends,
loans and advances from certain subsidiaries,  including MLPF&S, to ML&Co. are
restricted by net capital requirements under the Exchange Act, and under rules
of exchanges and other regulatory bodies.

Limitations Upon Liens

         ML&Co. may not, and may not permit any majority-owned  subsidiary to,
create,  assume,  incur or permit to exist any indebtedness for borrowed money
secured  by a  pledge,  lien or other  encumbrance,  other  than  those  liens
specifically  permitted  by the 1983  Indenture,  on the  Voting  Stock  owned
directly or indirectly by ML&Co. of any majority-owned subsidiary,  other than
a  majority-owned  subsidiary  which,  at the  time of the  incurrence  of the
secured  indebtedness,  has a net worth of less than  $3,000,000,  unless  the
outstanding  senior debt  securities are secured  equally and ratably with the
secured indebtedness.

         "Voting  Stock" is defined in the 1983  Indenture as the stock of the
class or classes having general voting power under ordinary  circumstances  to
elect at least a majority of the board of directors, managers or trustees of a
corporation provided that, for the purposes of the 1983 Indenture,  stock that
carries only the right to vote  conditionally on the occurrence of an event is
not considered voting stock whether or not the event has happened.

Limitation  on Disposition of Voting Stock of, and Merger and Sale of Assets 
by, MLPF&S

         ML&Co.  may not sell,  transfer  or  otherwise  dispose of any Voting
Stock of MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of
its Voting  Stock,  unless,  after giving  effect to any  transaction,  MLPF&S
remains a Controlled Subsidiary.

         "Controlled  Subsidiary"  is defined in the 1983  Indenture to mean a
corporation  more than 80% of the outstanding  shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

         In addition,  ML&Co. may not permit MLPF&S to:

          o   merge or consolidate, unless the surviving  company is a 
              Controlled Subsidiary, or 
    

          o   convey or transfer its properties and assets substantially as an
              entirety, except to one or more Controlled Subsidiaries.

Merger and Consolidation

   
         ML&Co.  may  consolidate or merge with or into any other  corporation
and ML&Co. may sell, lease or convey all or substantially all of its assets to
any corporation, provided that:

o        the  resulting   corporation,   if  other  than  ML&Co.,   is  a
         corporation  organized and existing under the laws of the United
         States of America or any U.S.  state and assumes all of ML&Co.'s
         obligations to:

         o     pay any amounts due and payable or deliverable  with respect to
               all the senior debt securities; and

         o     perform and observe all of ML&Co.'s  obligations under the 1983
               Indenture, and

o        ML&Co. or the successor corporation, as the case may be, is not,
         immediately  after any consolidation or merger, in default under
         the 1983 Indenture.
    

Modification and Waiver

   
         ML&Co.  and the trustee may modify and amend the 1983  Indenture with
the  consent  of  holders  of at least  66 2/3% in  principal  amount  of each
outstanding series of senior debt securities  affected.  However,  without the
consent of each holder of any outstanding  senior debt security  affected,  no
amendment or modification to the 1983 Indenture may:

o             change  the stated  maturity  date of the  principal  of, or any
              installment  of interest or Additional  Amounts  payable on, any
              senior debt  security or any premium  payable on redemption , or
              change the redemption price;

o             reduce the  principal  amount of, or the interest or  Additional
              Amounts  payable  on, any  senior  debt  security  or reduce the
              amount of  principal  which  could be  declared  due and payable
              before the stated maturity date;

o             change the place or currency of any payment of  principal or any
              premium,  interest or Additional  Amounts  payable on any senior
              debt security;

o             impair the right to institute suit for the enforcement of any 
              payment on or with respect to any  senior  debt security;

o             reduce the  percentage  in principal  amount of the  outstanding
              senior  debt  securities  of any  series,  the  consent of whose
              holders is required to modify or amend the 1983 Indenture; or

o             modify the foregoing  requirements  or reduce the  percentage of
              outstanding  senior debt securities  necessary to waive any past
              default to less than a majority.

         No  modification or amendment of ML&Co.'s  Subordinated  Indenture or
any Subsequent Indenture for subordinated debt securities may adversely affect
the rights of any holder of ML&Co.'s senior  indebtedness  without the consent
of each  holder  affected.  The  holders of at least a majority  in  principal
amount of outstanding  senior debt  securities of any series may, with respect
to that  series,  waive  past  defaults  under  the 1983  Indenture  and waive
compliance  by  ML&Co.  with  provisions  in the  1983  Indenture,  except  as
described under "--Events of Default".

Events of Default

         Each of the  following  will be Events of  Default  with  respect  to
senior debt securities of any series:

          o  default in the payment of any interest or Additional Amounts  
              payable when due and continuing for 30 days;

          o   default in the payment of any principal  or premium when due;

          o   default in the deposit of any sinking fund payment, when due;

          o   default in the  performance  of any other  obligation  of ML&Co.
              contained in the 1983  Indenture  for the benefit of that series
              or in the senior debt securities of that series,  continuing for
              60 days after written notice as provided in the 1983 Indenture;

          o   specified events in bankruptcy, insolvency or reorganization of 
              ML&Co.; and

          o   any other Event of Default  provided with respect to senior debt
              securities  of that series which are not  inconsistent  with the
              1983 Indenture.

If an Event of Default  occurs and is continuing for any series of senior debt
securities,  other  than  as  a  result  of  the  bankruptcy,   insolvency  or
reorganization  of  ML&Co.,  the  trustee  or the  holders  of at least 25% in
principal amount of the outstanding  senior debt securities of that series may
declare all  amounts,  or any lesser  amount  provided  for in the senior debt
securities,  due and payable or deliverable  immediately.  At any time after a
declaration  of  acceleration  has been  made  with  respect  to  senior  debt
securities  of any series but before the  trustee  has  obtained a judgment or
decree for payment of money , the holders of a majority in principal amount of
the  outstanding  senior  debt  securities  of that  series  may  rescind  any
declaration of acceleration and its  consequences,  if all payments due, other
than those due as a result of  acceleration,  have been made and all Events of
Default have been remedied or waived.

         The  holders of a majority in  principal  amount or  aggregate  issue
price of the  outstanding  senior debt securities of that series may waive any
Event of Default with respect to that series, except a default:

o        in the payment of any amounts due and payable or deliverable under 
         the debt securities of that series; or

o        in respect of an obligation  or provision of the 1983  Indenture
         which  cannot be  modified  under  the  terms of that  Indenture
         without the consent of each holder of each outstanding  security
         of each series of senior debt securities affected.

         The  holders of a majority  in  principal  amount of the  outstanding
senior debt  securities  of a series may direct the time,  method and place of
conducting  any  proceeding  for  any  remedy  available  to  the  trustee  or
exercising  any trust or power  conferred on the trustee with respect to those
senior debt  securities,  provided that any direction shall not be in conflict
with any rule of law or the 1983 Indenture.  Before proceeding to exercise any
right or power under the 1983  Indenture at the direction of the holders,  the
trustee shall be entitled to receive from the holders  reasonable  security or
indemnification  against the costs,  expenses and  liabilities  which might be
incurred by it in complying with any direction.

         The MITTS  Securities  and other  series  of senior  debt  securities
issued under the 1983  Indenture do not have the benefit of any  cross-default
provisions with other indebtedness of ML&Co.

         ML&Co. is required to furnish to the trustee  annually a statement as
to  the  fulfillment  by  ML&Co.  of all of its  obligations  under  the  1983
Indenture.
    


<PAGE>


   
                          PROJECTED PAYMENT SCHEDULE

         Solely  for  purposes  of  applying  the  final  Treasury  Department
Regulations  (the "Final  Regulations")  concerning  the United States Federal
income tax  treatment  of  contingent  payment debt  instruments  to the MITTS
Securities,  ML&Co. has determined that the projected payment schedule for the
MITTS Securities will consist of payment on the maturity date of the principal
amount and a projected  Supplemental  Redemption  Amount  equal to $5.5344 per
unit, the  "Projected  Supplemental  Redemption  Amount".  This  represents an
estimated yield on the MITTS Securities  equal to 5.97% per annum  (compounded
semiannually).

         The  following  table sets forth the amount of interest  that will be
deemed to have  accrued  with  respect  to each  unit of the MITTS  Securities
during each  accrual  period over a term of seven years and six months for the
MITTS  Securities  based upon the  projected  payment  schedule  for the MITTS
Securities,  including both the Projected  Supplemental  Redemption Amount and
the  estimated  yield equal to 5.97% per annum,  compounded  semiannually,  as
determined  by ML&Co.  for purposes of applying the Final  Regulations  to the
MITTS Securities:
    


<PAGE>

<TABLE>
<CAPTION>
   

                                                                                            Total Interest Deemed
                                                                   Interest Deemed to       to Have Accrued on
                                                                   Accrue During            MITTS Securities as of
                                                                   Accrual Period           End of Accrual Period
                         Accrual Period                            (per  unit)              (per  unit)
                         --------------                            ------------------       ----------------------
    
<S>                                                                <C>                      <C>

September 3, 1998 through February 28, 1999...................             $0.2910                   $0.2910
March 1, 1999 through August 28, 1999.........................             $0.3072                   $0.5982
August 29, 1999 through February 28, 2000.....................             $0.3164                   $0.9146
February 29, 2000 through August 28, 2000.....................             $0.3258                   $1.2404
August 29, 2000 through February 28, 2001.....................             $0.3355                   $1.5759
March 1, 2001 through August 28, 2001.........................             $0.3455                   $1.9214
August 29, 2001 through February 28, 2002.....................             $0.3559                   $2.2773
March 1, 2002 through August 28, 2002.........................             $0.3665                   $2.6438
August 29, 2002 through February 28, 2003.....................             $0.3774                   $3.0212
March 1, 2003 through August 28, 2003.........................             $0.3887                   $3.4099
August 29, 2003 through February 28, 2004.....................             $0.4003                   $3.8102
February 29, 2004 through August 28, 2004.....................             $0.4122                   $4.2224
August 29, 2004 through February 28, 2005.....................             $0.4245                   $4.6469
March 1, 2005 through August 28, 2005.........................             $0.4372                   $5.0841
August 29, 2005 through February 28, 2006.....................             $0.4503                   $5.5344

</TABLE>


   
         Projected Supplemental Redemption Amount = $5.5344 per unit.

         Prospective  investors in the MITTS  Securities  should consult their
own tax advisors  concerning the application of the Final Regulations to their
investment in the MITTS Securities. Investors in the MITTS Securities may also
obtain the projected payment schedule, as determined by ML&Co. for purposes of
the  application  of  the  Final  Regulations  to  the  MITTS  Securities,  by
submitting  a written  request for this  information  to Merrill  Lynch & Co.,
Inc.,  Attn:  Darryl W. Colletti,  Corporate  Secretary's  Office,  100 Church
Street, 12th Floor, New York, New York 10080-6512.
    


<PAGE>


   
                      WHERE YOU CAN FIND MORE INFORMATION

         We file reports, proxy statements and other information with the SEC.
Our SEC filings are also  available over the Internet at the SEC's web site at
http://www.sec.gov.  You may  also  read  and  copy  any  document  we file by
visiting the SEC's public  reference rooms in Washington,  D.C., New York, New
York, and Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further
information  about the public  reference  rooms.  You may also inspect our SEC
reports and other  information at the New York Stock Exchange,  Inc., 20 Broad
Street, New York, New York 10005.

         We have  filed a  registration  statement  on Form  S-3  with the SEC
covering the MITTS Securities and other securities. For further information on
ML&Co.  and  the  MITTS  Securities,  you  should  refer  to our  registration
statement and its exhibits.  This prospectus summarizes material provisions of
contracts and other documents that we refer you to. Because the prospectus may
not contain all the information that you may find important, you should review
the full text of these  documents.  We have included copies of these documents
as exhibits to our registration statement of which this prospectus is a part.


               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

         The SEC allows us to incorporate by reference the information we file
with them, which means:

     o  incorporated documents are considered part of the prospectus;

     o  we can disclose important information to you by referring you to those
        documents; and

     o  information that we file with the SEC will automatically  update
        and supersede this incorporated information.

         We  incorporate  by reference the  documents  listed below which were
filed with the SEC under the Exchange Act:

     o   annual report on Form 10-K for the year ended December 25, 1998; and

     o   current reports on Form 8-K dated December 28, 1998, January 19,
         1999,  February 17, 1999,  February 18, 1999, February 22, 1999,
         February 23, 1999 and March 26, 1999.

We also incorporate by reference each of the following  documents that we will
file with the SEC after the date of this  prospectus  until this  offering  is
completed or after the date of this initial registration  statement and before
the effectiveness of the registration statement:

     o    reports filed under Sections 13(a) and (c) of the Exchange Act;

     o    definitive  proxy or information  statements filed under Section
          14 of  the  Exchange  Act  in  connection  with  any  subsequent
          stockholders' meeting; and

     o    any reports filed under Section 15(d) of the Exchange Act.

         You should rely only on  information  contained  or  incorporated  by
reference in this prospectus.  We have not, and MLPF&S has not, authorized any
other person to provide you with different information. If anyone provides you
with different or inconsistent information,  you should not rely on it. We are
not,  and  MLPF&S is not,  making  an offer to sell  these  securities  in any
jurisdiction where the offer or sale is not permitted.

         You should assume that the  information  appearing in this prospectus
is accurate as of the date of this  prospectus  only. Our business,  financial
condition and results of operations may have changed since that date.

         You may  request a copy of any filings  referred to above  (excluding
exhibits), at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan, Jr.,  Corporate  Secretary's  Office,  Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.


                             PLAN OF DISTRIBUTION

         This  prospectus has been prepared in connection with secondary sales
of the MITTS  Securities  and is to be used by MLPF&S when  making  offers and
sales related to market-making transactions in the MITTS Securities.

         MLPF&S  may  act  as  principal  or  agent  in  these   market-making
transactions.

         The MITTS  Securities  may be offered on the AMEX or off the exchange
in negotiated transactions or otherwise.

         The  distribution  of  the  MITTS  Securities  will  conform  to  the
requirements set forth in the applicable  sections of Rule 2720 of the Conduct
Rules of the NASD.
    


                                    EXPERTS

   
         The  consolidated   financial  statements  and  the  related  financial
statement schedule  incorporated in this prospectus by reference from the Annual
Report on Form 10-K of Merrill  Lynch & Co.,  Inc.  and  subsidiaries  have been
audited  by  Deloitte & Touche  LLP,  independent  auditors,  as stated in their
reports  (which  express  an  unqualified   opinion  and  which  report  on  the
consolidated  financial  statements  includes an  explanatory  paragraph for the
change in  accounting  method  for  certain  internal-use  software  development
costs),   which  are  incorporated  herein  by  reference,   and  have  been  so
incorporated  in  reliance  upon the  reports  of such  firm  given  upon  their
authority as experts in accounting and auditing.

         
    

<PAGE>
   

                  The  information in this  prospectus is not complete and may
         be changed.  We may not sell these  securities until the registration
         statement  filed  with the  Securities  and  Exchange  Commission  is
         effective.  This prospectus is not an offer to sell these  securities
         and it is not  soliciting  an offer to buy  these  securities  in any
         state where the offer or sale is not permitted.
    


                             Subject to Completion
   
                  Preliminary Prospectus dated March 29, 1999
    

P R O S P E C T U S
- -------------------

   
                                                         
                           Merrill Lynch & Co., Inc.
    
    S&P 500(R) Market Index Target-Term Securities(R) due September 28, 2005
   
                             "MITTS(R) Securities"
                         $10 principal amount per unit

         This prospectus is to be used by Merrill Lynch & Co.,  Merrill Lynch,
Pierce, Fenner & Smith Incorporated,  our wholly-owned subsidiary, when making
offers and sales related to market-making transactions in the MITTS Securities.

    


<PAGE>


   
<TABLE>
<CAPTION>

 The MITTS Securities:
<S>                                                                   <C>
o   100% principal protection at maturity                             Payment at Maturity:
o   No payments  before the  maturity date                            o  On the maturity date,  for each unit of the MITTS  
o   Senior unsecured debt securities of Merrill Lynch & Co., Inc.        Securities you own, we pay you an amount equal to the sum
o   Linked to the value of the S&P 500 Index                             of the principal amount of each unit and an additional 
o   The MITTS  Securities  are listed on the New                         amount based on the percentage increase, if any, in the
    York Stock  Exchange  under the symbol "MIJ"                        value of the index, adjusted as described in this
                                                                         prospectus
                                                                       o You will receive no less than the principal amount of your
                                                                         MITTS Securities

</TABLE>

    



   
               Investing in the MITTS Securities involves risks.
                    See "Risk Factors" beginning on page 3.
    



         Neither  the  Securities  and  Exchange   Commission  nor  any  state
securities  commission  has approved or  disapproved  of these  securities  or
determined if this prospectus is truthful or complete.  Any  representation to
the contrary is a criminal offense.

   
         The sale price of the MITTS Securities will be the prevailing  market
price at the time of sale.


                               ----------------

                              Merrill Lynch & Co.
                               ----------------

                    The date of this prospectus is , 1999.

- ------------
    "MITTS" and "Market Index Target-Term Securities" are registered service 
marks owned by Merrill Lynch & Co.,  Inc.
    "Standard & Poor's(R)", "Standard & Poor's 500", "S&P 500(R)", "S&P(R)" 
and "500", are trademarks of The McGraw-Hill Companies, Inc. and have been 
licensed for use by Merrill Lynch Capital Services, Inc. and  ML&Co. is an
authorized sublicensee.
    

<PAGE>


   
                               TABLE OF CONTENTS

                                                                        Page

RISK FACTORS...............................................................3
MERRILL LYNCH & CO., INC...................................................6
RATIO OF EARNINGS TO FIXED CHARGES.........................................7
DESCRIPTIONOF THE MITTS SECURITIES.........................................8
THE INDEX.................................................................11
OTHER TERMS...............................................................11
PROJECTED PAYMENT SCHEDULE................................................11
WHERE YOU CAN FIND MORE INFORMATION.......................................11
INCORPORATION OF INFORMATION WE FILE WITH THE SEC.........................11
PLAN OF DISTRIBUTION......................................................11
EXPERTS...................................................................11
    


<PAGE>



                                 RISK FACTORS

   
         Your  investment  in the MITTS  Securities  will involve  risks.  You
should  carefully  consider the following  discussion of risks before deciding
whether an investment in the MITTS Securities is suitable for you.

 You may not earn a return on your investment

         You should be aware that at maturity we will pay you no more than $10
for each  unit of the MITTS  Securities  you own if the  average  value of the
index over five  trading days  shortly  before the maturity  date is less than
1,066.09, the value of the index on the date the MITTS Securities were priced.
This  will  be true  even  if at  some  time  during  the  life  of the  MITTS
Securities,  the value of the index, as adjusted, was higher than 1,066.09 but
later falls below 1,066.09.
    

Your yield may be lower than the yield on a standard debt security of 
comparable maturity

   
         The  amount we pay you at  maturity  may be less than the  return you
could  earn on other  investments.  Your  yield may be less than the yield you
would earn if you bought a  standard  senior  non-callable  debt  security  of
Merrill Lynch & Co., Inc. with the same maturity date. Your investment may not
reflect the full  opportunity  cost to you when you take into account  factors
that affect the time value of money.
    

Your  return  will  not reflect the return of owning the stocks underlying the
Index

   
         Your  return  will not  reflect  the return you would  realize if you
actually owned the stocks underlying the index and received the dividends paid
on those  stocks  because of the  reduction  caused by the  adjustment  factor
described in this  prospectus and because the index is calculated by reference
to the prices of the common stocks  included in the index without  taking into
consideration the value of dividends paid on those stocks.

 There may be an uncertain trading market for the MITTS Securities in the future

         Although the MITTS Securities are listed on the NYSE under the symbol
"MIJ",  you cannot assume that a trading market will continue to exist for the
MITTS  Securities.  If a trading market in the MITTS  Securities  continues to
exist,  you cannot  assume  that that there will be  liquidity  in the trading
market.  The continued  existence of a trading market for the MITTS Securities
will  depend  on our  financial  performance  and  other  factors  such as the
appreciation, if any, of the value of the index.
    

Factors affecting trading value of the MITTS Securities

   
         We believe that the value of the index and a number of other  factors
will affect the trading value of the MITTS  Securities . Some of these factors
are  interrelated  in complex ways; as a result,  the effect of any one factor
may be offset or  magnified  by the effect of another  factor.  The  following
paragraphs  describe  the  expected  impact on the trading  value of the MITTS
Securities given a change in a specific factor,  assuming all other conditions
remain constant.

o        Index Value. We expect that the market value of the MITTS  Securities
         will  depend  substantially  on the  amount  by which the  index,  as
         reduced by the adjustment factor,  exceeds 1,066.09. If you choose to
         sell your MITTS Securities when the value of the index, as reduced by
         the   adjustment   factor,   exceeds   1,066.09,   you  may   receive
         substantially  less than the amount that would be payable at maturity
         based on this value  because of the  expectation  that the index will
         continue to fluctuate until shortly before the maturity date when the
         average value of the index is determined.  If you choose to sell your
         MITTS  Securities when the value of the index is below 1,066.09,  you
         may  receive  less than the $10  principal  amount  per unit of MITTS
         Securities.  In general, rising U.S. dividend rates, or dividends per
         share,  may  increase  the  value of the  index  while  falling  U.S.
         dividend  rates  may  decrease  the  value of the  index.  Political,
         economic and other developments that affect the stocks underlying the
         index  may also  affect  the  value of the index and the value of the
         MITTS Securities.

o        Interest Rates. Because  we will pay, at a minimum, the  principal 
         amount  per unit of MITTS  Securities  at  maturity,  we expect  that
         changes in interest  rates will affect the trading value of the MITTS
         Securities . In general,  if U.S. interest rates increase,  we expect
         that the trading  value of the MITTS  Securities  will  decrease and,
         conversely,  if U.S.  interest rates decrease,  we expect the trading
         value of the MITTS Securities will increase.  Interest rates may also
         affect the U.S. economy and, in turn, the value of the index.  Rising
         interest  rates may lower the value of the index and, thus, the MITTS
         Securities.  Falling  interest  rates may  increase  the value of the
         index and, thus, may increase the value of the MITTS Securities.

o        Volatility of the Index.  Volatility is the term used to describe the
         size  and  frequency  of  market  fluctuations.   Generally,  if  the
         volatility of the index  increases,  we expect that the trading value
         of the MITTS Securities will increase. If the volatility of the index
         decreases,  we expect that the trading value of the MITTS  Securities
         will decrease.

o        Time Remaining to Maturity. The MITTS Securities may trade at a value
         above that which  would be  expected  based on the level of  interest
         rates and the index.  This  difference  will reflect a "time premium"
         due to  expectations  concerning  the value of the index  during  the
         period prior to the stated maturity of the MITTS Securities. However,
         as the time remaining to the stated maturity of the MITTS  Securities
         decreases,  we expect that this time premium will decrease,  lowering
         the trading value of the MITTS Securities.

o        Dividend  Yields.  If dividend  yields on the stocks  included in the
         index increase, we expect that the value of the MITTS Securities will
         decrease.  Conversely, if dividend yields on the stock comprising the
         index decrease, we expect that the value of the MITTS Securities will
         increase.

o        Changes in Our Credit  Ratings.  Our credit ratings are an assessment
         of  our  ability  to  pay  our  obligations.  Consequently,  real  or
         anticipated  changes in our  credit  ratings  may affect the  trading
         value of the MITTS Securities.  However,  because your return on your
         MITTS Securities is dependent upon factors in addition to our ability
         to pay  our  obligations  under  the  MITTS  Securities,  such as the
         percentage  increase  in the  value  of the  index  at  maturity,  an
         improvement  in our credit ratings will not reduce  investment  risks
         related to the MITTS Securities.

         It is important for you to  understand  that the impact of one of the
factors  specified  above,  such as an increase in interest rates,  may offset
some or all of any  increase  in the  trading  value of the  MITTS  Securities
attributable to another factor, such as an increase in the index value.

         In general,  assuming  all  relevant  factors are held  constant,  we
expect that the effect on the trading value of the MITTS Securities of a given
change in most of the factors  listed above will be less if it occurs later in
the term of the MITTS  Securities than if it occurs earlier in the term of the
MITTS Securities.  However,  we expect that the effect on the trading value of
the MITTS  Securities  of a given  increase  in the value of the index will be
greater  if it  occurs  later in the term of the MITTS  Securities  than if it
occurs earlier in the term of the MITTS Securities.

 Amounts payable on the MITTS Securities may be limited by state law

         New York State law governs the senior indenture under which the MITTS
Securities  were  issued.  New York has usury  laws that  limit the  amount of
interest that can be charged and paid on loans, which includes debt securities
like the MITTS  Securities.  Under  present New York law,  the maximum rate of
interest is 25% per annum on a simple interest basis. This limit may not apply
to debt securities in which $2,500,000 or more has been invested.
    

         While we believe  that New York law would be given  effect by a state
or Federal court sitting outside of New York, many other states also have laws
that  regulate  the  amount of  interest  that may be charged to and paid by a
borrower.  We will  promise,  for the  benefit  of the  holders  of the  MITTS
Securities,  to the extent  permitted  by law,  not to  voluntarily  claim the
benefits of any laws concerning usurious rates of interest.

   
Purchases and sales by  us and our affiliates may affect your return

         We and our  affiliates  may from time to time buy or sell the  stocks
underlying  the  index  for  our  own  accounts  for  business  reasons  or in
connection  with hedging our  obligations  under the MITTS  Securities.  These
transactions could affect the price of these stocks and the value of the index
in a manner that would be adverse to your investment in the MITTS Securities.

Potential conflicts of interest

         Our subsidiary, Merrill Lynch, Pierce, Fenner & Smith Incorporated or
MLPF&S,  is our agent for the purposes of  calculating  the value of the index
and the amount  payable to you at maturity.  In some  circumstances,  MLPF&S's
role as our subsidiary and its  responsibilities  as calculation agent for the
MITTS  Securities  could give rise to conflicts of interests.  These conflicts
could occur, for instance,  in connection with its determination as to whether
the value of the index can be  calculated  on a particular  trading day, or in
connection  with judgments that it would be required to make in the event of a
discontinuance    of   the   index.    See    "Description    of   the   MITTS
Securities--Adjustments   to  the  Index;   Market   Disruption   Events"  and
"--Discontinuance  of the Index" in this  prospectus.  MLPF&S is  required  to
carry  out its  duties  as  calculation  agent in good  faith  and  using  its
reasonable  judgment.  However,  you should be aware  that  because we control
MLPF&S, potential conflicts of interest could arise.

         We have entered into an arrangement with one of our a subsidiaries to
hedge the market risks  associated  with our  obligation to pay amounts due at
maturity on the MITTS Securities.  This subsidiary expects to make a profit in
connection with this  arrangement.  We did not seek  competitive bids for this
arrangement from unaffiliated parties.
    

Other Considerations

   
         It  is  suggested  that  you  should  reach  an  investment  decision
regarding  the  MITTS   Securities  only  after   carefully   considering  the
suitability  of  the  MITTS   Securities  in  the  light  of  your  particular
circumstances.
    

         You should also  consider  the tax  consequences  of investing in the
MITTS Securities and should consult your tax advisor.


   
                           MERRILL LYNCH & CO., INC.

         We  are a  holding  company  that,  through  our  U.S.  and  non-U.S.
subsidiaries  and  affiliates  such as Merrill Lynch,  Pierce,  Fenner & Smith
Incorporated,  Merrill Lynch Government Securities Inc., Merrill Lynch Capital
Services,  Inc.,  Merrill Lynch  International,  Merrill Lynch Capital Markets
Bank Ltd., Merrill Lynch Asset Management L.P. and Merrill Lynch Mercury Asset
Management,  provides investment,  financing, advisory, insurance, and related
products on a global basis, including:

o        securities brokerage, trading and underwriting;

o        investment banking, strategic services, including mergers and 
         acquisitions and other corporate finance  advisory activities;

o        asset management and other investment advisory and recordkeeping 
         services;

o        trading and brokerage of swaps, options, forwards, futures and other 
         derivatives;

o        securities clearance services;

o        equity, debt and economic research;

o        banking, trust and lending services, including mortgage lending and 
         related services; and

o        insurance sales and underwriting services.

         We provide  these  products  and services to a wide array of clients,
including individual investors, small businesses,  corporations,  governments,
governmental agencies and financial institutions.

         Our principal  executive office is located at World Financial Center,
North Tower, 250 Vesey Street,  New York, New York 10281; our telephone number
is (212) 449-1000.

         If you  want  to find  more  information  about  us,  please  see the
sections entitled "Where You Can Find More Information" and  "Incorporation of
Information We File with the SEC" in this prospectus.

         In this prospectus, "ML&Co.", "we", "us" and "our" refer specifically
to Merrill Lynch & Co., Inc., the holding company. ML&Co. is the issuer of the
MITTS Securities described in this prospectus.
    



   
                      RATIO OF EARNINGS TO FIXED CHARGES

         In 1998, we acquired the outstanding shares of Midland Walwyn,  Inc.,
in a  transaction  accounted  for  as a  pooling-of-interests.  The  following
information for the fiscal years 1994 through 1997 has been restated as if the
two entities had always been combined.

         The following  table sets forth our historical  ratios of earnings to
fixed charges for the periods indicated:



                                            Year Ended Last Friday in December
                                     1994     1995     1996     1997      1998
                                     -----------------------------------------

Ratio of earnings to 
fixed charges(a).........            1.2      1.2      1.2      1.2       1.1

- ----------
(a)   The effect of combining Midland Walwyn did not change the ratios reported
      for the fiscal years 1994 through 1997.

     For the purpose of  calculating  the ratio of earnings to fixed  charges,
"earnings" consist of earnings from continuing  operations before income taxes
and fixed  charges,  excluding  capitalized  interest and  preferred  security
dividend requirements. "Fixed charges" consist of interest costs, the interest
factor in rentals,  amortization  of debt issuance costs,  preferred  security
dividend requirements of subsidiaries, and capitalized interest.
    


<PAGE>


                      DESCRIPTION OF THE MITTS SECURITIES

   
         On September 29, 1998, ML&Co. issued $82,000,000  aggregate principal
amount  of S&P  500  MITTS  Securities  due  September  28,  2005.  The  MITTS
Securities  were issued as a series of senior debt  securities  under the 1983
Indenture which is more fully described in this prospectus.
    

         The MITTS Securities will mature on September 28, 2005.

   
         While  at  maturity  ML&Co.  will pay a  beneficial  owner of a MITTS
Security the principal  amount of each MITTS  Security  plus the  Supplemental
Redemption  Amount described below, if any, ML&Co.  will make no other payment
of interest, periodic or otherwise. See "- Payment at Maturity" below.

         The MITTS  Securities  are not subject to redemption by ML&Co.  or at
the option of any beneficial owner before maturity.  Upon the occurrence of an
Event of Default with respect to the MITTS  Securities,  beneficial  owners of
the MITTS Securities may accelerate the maturity of the MITTS  Securities,  as
described  under "- Events of Default  and  Acceleration"  and "Other  Terms -
Events of Default" in this prospectus.

         The MITTS Securities were issued in denominations of whole units.
    

Payment at Maturity

   
         At the maturity date,  ML&Co.  will pay a beneficial owner of a MITTS
Security the principal  amount of each unit plus the  Supplemental  Redemption
Amount,  if any, all as provided  below. If the Adjusted Ending Value does not
exceed the  Starting  Value,  ML&Co.  will pay a  beneficial  owner of a MITTS
Security only the principal amount of its MITTS Securities.

         The  "Supplemental  Redemption  Amount" for a MITTS  Security will be
determined by the calculation agent and will equal:
    

<TABLE>
<CAPTION>

<S>                                                      <C>

Principal Amount of each MITTS Security ($10 per Unit) x (Adjusted Ending Value - Starting Value)
                                                         (--------------------------------------)
                                                         (             Starting Value           )

</TABLE>


provided,  however,  that in no event  will the  Supplemental
Redemption Amount be less than zero.

   
         The "Starting Value" equals 1,066.09.

         The "Adjusted  Ending  Value" will be  determined by the  calculation
agent and will equal the average or arithmetic  mean of the closing  values of
the S&P 500 Index (the  "Index")  as adjusted  by the  Adjustment  Factor (the
"Adjusted Index Value")  determined on each of the first five Calculation Days
during the Calculation  Period. If there are fewer than five Calculation Days,
then the Adjusted  Ending Value will equal the average or  arithmetic  mean of
the closing values of the Adjusted Index Value on these  Calculation  Days. If
there is only one  Calculation  Day, then the Adjusted Ending Value will equal
the closing value of the Adjusted Index Value on that  Calculation  Day. If no
Calculation Days occur during the Calculation Period, then the Adjusted Ending
Value will equal the closing value of the Adjusted  Index Value  determined on
the last scheduled Index Business Day in the Calculation Period, regardless of
the occurrence of a Market Disruption Event on that day.

         The  "Adjustment  Factor"  equals 1.9% per annum and will be prorated
based on a 365-day year and applied  each  calendar day during the term of the
MITTS  Securities to reduce the Index.  As a result of the  application of the
Adjustment  Factor,  the adjusted  value of the Index used to  calculate  your
Supplemental  Redemption Amount at the stated maturity of the MITTS Securities
will be  approximately  12.48%  less than the  actual  Index  value on any day
during the Calculation Period.

         The  "Calculation  Period"  means the period from and  including  the
seventh  scheduled  Index  Business  Day  prior  to the  maturity  date to and
including the second scheduled Index Business Day prior to the maturity date.

         "Calculation Day" means any Index Business Day during the Calculation
Period on which a Market Disruption Event has not occurred.

         For purposes of  determining  the Adjusted  Ending  Value,  an "Index
Business Day" is a day on which the NYSE and the AMEX are open for trading and
the Index or any Successor  Index,  as defined on page 10 below, is calculated
and published.

         All determinations made by the calculation agent shall be at the sole
discretion  of the  calculation  agent  and,  absent  a  determination  by the
calculation  agent of a manifest  error,  shall be conclusive for all purposes
and binding on ML&Co. and beneficial owners of the MITTS Securities.
    

Hypothetical Returns

         The following table illustrates,  for a range of hypothetical  values
of the Index during the Calculation Period,

   
o      the Adjusted Ending Value used to calculate the Supplemental Redemption 
       Amount;

o      the percentage change from the Starting Value to the Adjusted Ending 
       Value;

o      the total amount payable per  unit of MITTS Securities;
    

o        the total rate of return on the MITTS Securities;

   
o         the pretax annualized rate of return on the MITTS Securities; and

o                     the  pretax  annualized  rate of  return  of the  stocks
                      underlying   the  Index,   which   includes  an  assumed
                      aggregate  dividend  yield of 1.49% per  annum,  as more
                      fully described below.
    

<TABLE>
<CAPTION>

                                                                                           
                                                                                          
  Hypothetical                                     Total Amount                         Pretax
      Index                     Adjusted Ending    Payable at        Total Rate       Annualized               Pretax Annualized 
Value During the                 Value Percentage   Maturity          of Return         Rate of                Rate of Return of
  Calculation      Adjusted      Change Over the    per unit of       on the          Return on the             Stocks Underlying
     Period       Ending Value   Starting Value    MITTS Securities  MITTS Securities   MITTS Securities(1)        the Index(1)(2)
   <S>            <C>            <C>              <C>                <C>               <C>                       <C>         
 
     533.05         466.49        -56.24%          $10.00            0.00%             0.00%                     -8.16%
     639.65         559.79        -47.49%          $10.00            0.00%             0.00%                     -5.68%
     746.26         653.09        -38.74%          $10.00            0.00%             0.00%                     -3.55%
     852.87         746.39        -29.99%          $10.00            0.00%             0.00%                     -1.68%
     959.48         839.68        -21.24%          $10.00            0.00%             0.00%                     -0.02%
   1,066.09(3)      932.98        -12.49%          $10.00            0.00%             0.00%                      1.49%
    1,172.70       1,026.28        -3.73%          $10.00            0.00%             0.00%                      2.86%
    1,279.31       1,119.58        5.02%           $10.50            5.02%             0.70%                      4.13%
    1,385.92       1,212.88        13.77%          $11.38            13.77%            1.85%                      5.30%
    1,492.53       1,306.17        22.52%          $12.25            22.52%            2.91%                      6.39%
    1,599.14       1,399.47        31.27%          $13.13            31.27%            3.91%                      7.41%
    1,705.74       1,492.77        40.02%          $14.00            40.02%            4.85%                      8.38%
    1,812.35       1,586.07        48.77%          $14.88            48.77%            5.74%                      9.29%
    1,918.96       1,679.37        57.53%          $15.75            57.53%            6.58%                     10.15%
    2,025.57       1,772.66        66.28%          $16.63            66.28%            7.38%                     10.97%
    2,132.18       1,865.96        75.03%          $17.50            75.03%            8.14%                     11.75%
    2,238.79       1,959.26        83.78%          $18.38            83.78%            8.86%                     12.50%
    2,345.40       2,052.56        92.53%          $19.25            92.53%            9.55%                     13.21%
    2,452.01       2,145.86       101.28%          $20.13           101.28%            10.22%                    13.90%
    2,558.62       2,239.16       110.03%          $21.00           110.03%            10.86%                    14.56%
    2,665.23       2,332.45       118.79%          $21.88           118.79%            11.47%                    15.19%

</TABLE>

- -------------
(1)  The  annualized  rates of return  specified  in the  preceding  table are
     calculated on a semiannual bond equivalent basis.
   
(2) This rate of return assumes:
          (a) a  constant  dividend  yield of 1.49%  per  annum,  paid
              quarterly  from  the  date  of  initial  delivery  of  MITTS
              Securities,  applied to the value of the Index at the end of
              each  quarter  assuming  this value  increases  or decreases
              linearly from the Starting Value to the  hypothetical  Index
              value during the Calculation Period; 
          (b) no transaction fees or expenses;
          (c) an investment  term from September 23, 1998 to September 28, 
              2005; and 
          (d) a  final  Index  value  equal  to the  hypothetical  Index  value
              during  the Calculation Period.
    
(3) The Starting Value equals 1,066.09.

   
     The above  figures are for  purposes  of  illustration  only.  The actual
Supplemental  Redemption Amount received by investors and the total and pretax
annualized  rate of return will depend  entirely on the actual Adjusted Ending
Value determined by the calculation agent as provided in this prospectus.
    

Adjustments to the Index; Market Disruption Events

   
         If at any time the method of calculating the Index, or its value , is
changed in any material respect,  or if the Index is in any other way modified
so that the Index does not, in the opinion of the  calculation  agent,  fairly
represent  the value of the Index had any  changes or  modifications  not been
made,  then,  from and after that time, the  calculation  agent shall,  at the
close of business in New York,  New York,  on each date that the closing value
with  respect  to the  Adjusted  Ending  Value is to be  calculated,  make any
adjustments  as, in the good faith judgment of the calculation  agent,  may be
necessary  in order to arrive  at a  calculation  of a value of a stock  index
comparable to the Index as if any changes or modifications  had not been made,
and  calculate  the closing  value with  reference to the Index,  as adjusted.
Accordingly,  if the method of  calculating  the Index is modified so that the
value of the Index is a fraction  or a multiple  of what it would have been if
it had not been modified,  due to a split in the Index,  then the  calculation
agent shall  adjust the Index in order to arrive at a value of the Index as if
it had not been modified for example, as if the split had not occurred.

         "Market  Disruption  Event" means either of the following  events; as
determined by the calculation agent:

         (a) the suspension or material  limitation on trading,  for more than
two hours of trading,  or during the one-half hour period  preceding the close
of trading on the  applicable  exchange,  in each case,  in 20% or more of the
stocks which then comprise the Index; or

         (b) the  suspension or material  limitation,  in each case,  for more
than two hours of trading,  whether by reason of movements in price  otherwise
exceeding levels permitted by the relevant exchange or otherwise, in

              (1) futures contracts related to the Index, or options on  
          futures contracts, which are traded on any major U.S. exchange or

              (2) option contracts related to the Index which are traded on 
          any major U.S. exchange.

         For the  purposes  of clause (a) above,  any  limitations  on trading
during significant market fluctuations under New York Stock Exchange Rule 80A,
or any applicable rule or regulation enacted or promulgated by the NYSE or any
other self  regulatory  organization or the SEC of similar scope as determined
by the calculation agent, will be considered "material".

         A limitation  on the hours in a trading day and/or  number of days of
trading will not  constitute a Market  Disruption  Event if it results from an
announced change in the regular business hours of the relevant exchange.
    

Discontinuance of the Index

   
         If S&P  discontinues  publication  of the  Index  and S&P or  another
entity  publishes a successor or substitute  index that the calculation  agent
determines,  in its  sole  discretion,  to be  comparable  to the  Index  (any
successor or substitue  index is referred to as a  "Successor  Index"),  then,
upon the calculation agent's  notification of the determination to the trustee
and ML&Co.,  the  calculation  agent will  substitute  the Successor  Index as
calculated by S&P or any other entity for the Index. Upon any selection by the
calculation agent of a Successor Index,  ML&Co. shall cause notice to be given
to holders of the MITTS Securities.

         If S&P discontinues publication of the Index and a Successor Index is
not selected by the calculation  agent or is no longer published on any of the
Calculation  Days,  the  value  to  be  substituted  for  the  Index  for  any
Calculation  Day used to  calculate  the  Supplemental  Redemption  Amount  at
maturity  will  be  a  value  computed  by  the  calculation  agent  for  each
Calculation  Day in accordance  with the procedures last used to calculate the
Index  before the  discontinuance.  If a  Successor  Index is  selected or the
calculation  agent  calculates  a  value  as a  substitute  for the  Index  as
described  below,  the Successor  Index or value shall be substituted  for the
Index for all purposes, including for purposes of determining whether a Market
Disruption  Event exists.  If the  calculation  agent  calculates a value as a
substitute for the Index,  "Index Calculation Day" shall mean any day on which
the calculation agent is able to calculate the value.

         If S&P discontinues publication of the Index before the period during
which  the  Supplemental  Redemption  Amount  is  to  be  determined  and  the
calculation  agent  determines  that no  Successor  Index is available at that
time, then on each Business Day until the earlier to occur of:
    

o        the determination of the Adjusted Ending Value and

   
o        a determination by the  calculation agent that a Successor Index is 
         available,

the  calculation  agent  shall  determine  the  value  that  would  be used in
computing  the  Supplemental  Redemption  Amount as described in the preceding
paragraph as if that day were a Calculation  Day. The  calculation  agent will
cause notice of each value to be published not less often than once each month
in The Wall Street Journal, or another newspaper of general  circulation,  and
arrange for  information  with  respect to the values to be made  available by
telephone.

         Despite  these  alternative   arrangements,   discontinuance  of  the
publication of the Index may adversely affect trading in the MITTS Securities.
    

Events of Default and Acceleration

   
         In case an Event of Default with respect to any MITTS  Securities has
occurred and is  continuing,  the amount  payable to a  beneficial  owner of a
MITTS Security upon any acceleration  permitted by the MITTS Securities,  with
respect to each $10 principal  amount per unit, will be equal to the principal
amount per unit and the Supplemental  Redemption Amount, if any, calculated as
though the date of early  repayment were the stated maturity date of the MITTS
Securities.  See "- Payment at Maturity" in this  prospectus.  If a bankruptcy
proceeding  is  commenced  in respect of ML&Co.,  the claim of the  beneficial
owner of a MITTS Security may be limited,  under Section 502(b)(2) of Title 11
of the  United  States  Code,  to the  principal  amount per unit of the MITTS
Security plus an additional amount of contingent interest calculated as though
the date of the  commencement  of the proceeding were the maturity date of the
MITTS Securities.

         In case of default in payment of the MITTS Securities, whether at the
stated  maturity or upon  acceleration,  from and after the maturity  date the
MITTS  Securities  shall bear interest,  payable upon demand of the beneficial
owners thereof,  at the rate of 5.78% per annum, to the extent that payment of
any  interest  shall be  legally  enforceable,  on the  unpaid  amount due and
payable on that date in accordance  with the terms of the MITTS  Securities to
the date payment of any amount has been made or duly provided for.

Global Securities

         Description of the Global Securities  

         Beneficial  owners of the MITTS  Securities may not receive  physical
delivery  of the MITTS  Securities  nor may they be entitled to have the MITTS
Securities  registered  in their names.  The MITTS  Securities  currently  are
represented by one or more fully  registered  global  securities.  Each global
security was deposited with, or on behalf of, The Depository  Trust Company or
DTC (DTC,  together  with any successor  thereto,  being a  "depositary"),  as
depositary,  registered in the name of Cede & Co. (DTC's partnership nominee).
Unless and until it is exchanged in whole or in part for MITTS  Securities  in
definitive  form, no global  security may be transferred  except as a whole by
the  depositary  to a  nominee  of  the  depositary  or by a  nominee  of  the
depositary to the  depositary or another  nominee of the  depositary or by the
depositary  or any nominee to a successor  of the  depositary  or a nominee of
that successor.

         So long as DTC, or its  nominee,  is a  registered  owner of a global
security,  DTC or its nominee, as the case may be, will be considered the sole
owner or Holder of the MITTS  Securities  represented by a global security for
all  purposes  under  the  1983  Indenture.  Except  as  provided  below,  the
beneficial  owners of the MITTS  Securities  represented by a global  security
will not be entitled to have the MITTS  Securities  represented  by the global
security registered in their names, will not receive or be entitled to receive
physical  delivery of the MITTS  Securities in definitive form and will not be
considered  the  owners or Holders  under the 1983  Indenture,  including  for
purposes of receiving any reports delivered by ML&Co. or the trustee under the
1983  Indenture.  Accordingly,  each person owning a beneficial  interest in a
global  security must rely on the procedures of DTC and, if that person is not
a participant of DTC on the procedures of the  participant  through which that
person owns its  interest,  to exercise  any rights of a Holder under the 1983
Indenture.  ML&Co.  understands that under existing industry practices, in the
event  that  ML&Co.  requests  any  action  of  Holders  or that an owner of a
beneficial  interest in a global  security  desires to give or take any action
which a Holder is entitled to give or take under the 1983 Indenture, DTC would
authorize the participants  holding the relevant beneficial  interests to give
or take any action,  and the participants  would authorize  beneficial  owners
owning through those  participants  to give or take action or would  otherwise
act upon the  instructions  of  beneficial  owners.  Conveyance of notices and
other  communications  by DTC to  participants,  by  participants  to indirect
participants  and by  participants  and indirect  participants  to  beneficial
owners will be governed by arrangements  among them,  subject to any statutory
or regulatory requirements as may be in effect from time to time.

          DTC Procedures
    

         The following is based on information furnished by DTC:

   
         DTC is the securities depositary for the MITTS Securities.  The MITTS
Securities were issued as fully registered  securities  registered in the name
of Cede & Co., DTC's partnership  nominee. One or more fully registered global
securities  were issued for the MITTS  Securities in the  aggregate  principal
amount of the MITTS Securities, and were deposited with DTC.

         DTC is a  limited-purpose  trust company organized under the New York
Banking  Law, a  "banking  organization"  within  the  meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing  corporation"
within the meaning of the New York Uniform  Commercial  Code,  and a "clearing
agency"  registered  under to the  provisions of Section 17A of the Securities
and  Exchange  Act  of  1934,  as  amended.  DTC  holds  securities  that  its
participants  deposit  with DTC. DTC also  facilitates  the  settlement  among
participants  of securities  transactions,  such as transfers and pledges,  in
deposited  securities  through electronic  computerized  book-entry changes in
participants' accounts,  thereby eliminating the need for physical movement of
securities certificates. Direct participants of DTC include securities brokers
and  dealers,   banks,  trust  companies,   clearing  corporations  and  other
organizations.  DTC is owned by a number of its direct participants and by the
NYSE, the AMEX and the National Association of Securities Dealers, Inc. Access
to the DTC's system is also available to others such as securities brokers and
dealers,  banks and trust companies that clear through or maintain a custodial
relationship  with a direct  participant,  either directly or indirectly.  The
rules applicable to DTC and its participants are on file with the SEC.

         Purchases of MITTS  Securities  under DTC's system must be made by or
through  direct  participants,  which  will  receive  a credit  for the  MITTS
Securities on DTC's records.  The ownership  interest of each beneficial owner
is in turn to be recorded on the records of direct and indirect  participants.
Beneficial  owners will not  receive  written  confirmation  from DTC of their
purchase,  but beneficial owners are expected to receive written confirmations
providing details of the transaction,  as well as periodic statements of their
holdings,  from the direct participants or indirect participants through which
the  beneficial  owner  entered into the  transaction.  Transfers of ownership
interests in the MITTS  Securities are to be  accomplished  by entries made on
the books of participants acting on behalf of beneficial owners.

         To facilitate  subsequent  transfers,  all MITTS Securities deposited
with DTC are registered in the name of DTC's partnership  nominee,  Cede & Co.
The deposit of MITTS Securities with DTC and their registration in the name of
Cede & Co. effect no change in beneficial  ownership.  DTC has no knowledge of
the actual beneficial  owners of the MITTS  Securities;  DTC's records reflect
only the  identity  of the direct  participants  to whose  accounts  the MITTS
Securities are credited,  which may or may not be the beneficial  owners.  The
participants will remain  responsible for keeping account of their holdings on
behalf of their customers.

         Conveyance  of  notices  and  other  communications  by DTC to direct
participants,  by direct participants to indirect participants,  and by direct
and  indirect   participants   to  beneficial   owners  will  be  governed  by
arrangements among them,  subject to any statutory or regulatory  requirements
as may be in effect from time to time.

         Neither DTC nor Cede & Co. will  consent or vote with  respect to the
MITTS Securities.  Under its usual  procedures,  DTC mails an omnibus proxy to
ML&Co. as soon as possible after the applicable record date. The omnibus proxy
assigns Cede & Co.'s consenting or voting rights to those direct  participants
identified in a listing  attached to the omnibus  proxy to whose  accounts the
MITTS  Securities  are  credited  on the record date  identified  in a listing
attached to the omnibus proxy.

         Principal,  premium, if any, and/or interest, if any, payments on the
MITTS  Securities  will be made in immediately  available  funds to DTC. DTC's
practice is to credit direct participants'  accounts on the applicable payment
date in accordance with their  respective  holdings shown on the  depositary's
records  unless DTC has reason to believe that it will not receive  payment on
that date.  Payments by participants to beneficial  owners will be governed by
standing instructions and customary practices,  as is the case with securities
held for the  accounts of customers  in bearer form or  registered  in "street
name", and will be the  responsibility  of the participant and not of DTC, the
trustee or ML&Co., subject to any statutory or regulatory  requirements as may
be in effect from time to time. Payment of principal,  premium, if any, and/or
interest,  if any,  to DTC is the  responsibility  of ML&Co.  or the  trustee,
disbursement of payments to direct  participants is the responsibility of DTC,
and disbursement of payments to the beneficial owners is the responsibility of
direct and indirect participants.

          Exchange for Certificated Securities

         If:

          o   the depositary is at any time unwilling or unable to continue as
              depositary and a successor depositary is not appointed by ML&Co. 
              within 60 days, 

          o   ML&Co. executes and delivers to the trustee a company order to 
              the effect that the global securities shall be exchangeable, or
     
          o   an Event of Default under the 1983 Indenture has occurred and is
              continuing with respect to the MITTS Securities, 

the global  securities will be exchangeable for MITTS Securities in definitive
form  of  like  tenor  and  of  an  equal  aggregate   principal   amount,  in
denominations  of $10 and  integral  multiples of $10.  The  definitive  MITTS
Securities  will be  registered in the name or names as the  depositary  shall
instruct  the  trustee.  It is expected  that  instructions  may be based upon
directions  received  by the  depositary  from  participants  with  respect to
ownership of beneficial interests in the global securities.

         In addition,  ML&Co.  may decide to discontinue  use of the system of
book-entry  transfers through the depositary.  In that event, MITTS Securities
in definitive form will be printed and delivered.

         The  information in this section  concerning DTC and DTC's system has
been  obtained  from sources that ML&Co.  believes to be reliable,  but ML&Co.
takes no responsibility for its accuracy .
    

Same-Day Settlement and Payment

   
         ML&Co.  will make all  payments  of  principal  and the  Supplemental
Redemption Amount, if any, in immediately available funds so long as the MITTS
Securities are maintained in book-entry form.
    


                                   THE INDEX

   
         All  disclosures  contained in this  prospectus  regarding the Index,
including its make-up,  method of calculation  and changes in its  components,
are  derived  from  publicly available information prepared by S&P as of March
22, 1999. ML&Co. and MLPF&S do not assume any  responsibility for the accuracy
or completeness of the information.

     The Index is published  by S&P, and is intended to provide an  indication
of the pattern of common stock price movement. The calculation of the value of
the Index,  discussed below in further detail,  is based on the relative value
of the  aggregate  Market Value of the common  stocks of 500 companies as of a
particular  time compared to the aggregate  average Market Value of the common
stocks of 500  similar  companies  during  the base  period of the years  1941
through  1943.  As of March 22, 1999 the 500  companies  included in the Index
represented  approximately  78% of the aggregate Market Value of common stocks
traded  on the NYSE;  however,  these 500  companies  are not the 500  largest
companies  listed on the NYSE and not all of these 500 companies are listed on
the  exchange.  As of March 22, 1999,  the  aggregate  Market Value of the 500
companies included in the Index represented approximately 79% of the aggregate
Market  Value  of  United  States  domestic,  public  companies.  S&P  chooses
companies for inclusion in the Index with the aim of achieving a  distribution
by broad  industry  groupings  that  approximates  the  distribution  of these
groupings in the common  stock  population  of the NYSE,  which S&P uses as an
assumed  model for the  composition  of the total  market.  Relevant  criteria
employed by S&P include:
    

     o    the viability of the particular company,

     o    the extent to which that company represents the industry group to 
          which it is assigned,

   
     o    the  extent  to which  the  market  price of that  company's
          common  stock is  generally  responsive  to  changes  in the
          affairs of the respective industry, and

     o    the Market Value and trading activity of the common stock of that 
          company.

         Four main groups of companies  comprise the Index, with the number of
companies   currently   included  in  each  group  indicated  in  parentheses:
Industrials (380), Utilities (39), Transportation (10) and Financial (71). S&P
may from time to time,  in its sole  discretion,  add  companies to, or delete
companies from, the Index to achieve the objectives stated above.

         The Index does not  reflect the  payment of  dividends  on the stocks
underlying it. Because of this and the  application of the Adjustment  Factor,
the return based on the MITTS Securities will not be the same return you would
receive  if you were to  purchase  the  underlying  stocks and hold them for a
period equal to the maturity of the MITTS Securities.
    

Computation of the Index

         S&P currently computes the Index as of a particular time as follows:

   
                  (a) the product of the market price per share and the number
         of then outstanding shares of each component stock is determined at a
         particular time (the "Market Value" of the stock);

                  (b) the Market  Value of all  component  stock as of that time
         are aggregated;
    

                  (c) the mean average of the Market Values as of each week in
         the base period of the years 1941 through 1943 of the common stock of
         each  company in a group of 500  substantially  similar  companies is
         determined;

   
                  (d) the mean  average  Market  Values  of all  these  common
         stocks  over the base period are  aggregated  (the  aggregate  amount
         being referred to as the "Base Value");
    

                  (e) the current aggregate Market Value of all component stocks
         is divided by the Base Value; and

   
                  (f)  the  resulting  quotient,   expressed  in  decimals,   is
         multiplied by ten.

         While S&P currently  employs the above  methodology  to calculate the
Index,  no  assurance  can be given  that S&P will not  modify or change  this
methodology in a manner that may affect the Supplemental Redemption Amount, if
any,  payable  to  beneficial  owners of MITTS  Securities  upon  maturity  or
otherwise.

         S&P adjusts the foregoing formula to negate the effects of changes in
the  Market  Value  of  component  stocks  that  are  determined  by S&P to be
arbitrary  or not due to true  market  fluctuations.  Changes  may result from
causes such as:
    

     o    the issuance of stock dividends,

     o    the granting to shareholders of rights to purchase additional shares
          of stock,

     o    the purchase of shares by employees pursuant to employee benefit 
          plans,

   
     o    consolidations and acquisitions,

     o    the granting to shareholders of rights to purchase other securities 
          of  ML&Co.,
    

     o    the substitution by S&P of particular component stocks in the Index, 
          and other reasons.

   
         In these cases, S&P first  recalculates the aggregate Market Value of
all component  stocks,  after taking account of the new market price per share
of the  particular  component  stock or the new number of  outstanding  shares
thereof or both, and then determines the New Base Value in accordance with the
following formula:


   Old Base Value X               New Market Value         = New Base Value
                                  ----------------
                                  Old Market Value

         The result is that the Base Value is  adjusted in  proportion  to any
change in the aggregate  Market Value of all component  stocks  resulting from
the causes referred to above to the extent  necessary to negate the effects of
these causes upon the Index.

 Historical Data on the Index

         The  following  table sets forth the value of the Index at the end of
each month,  in the period from  January  1990 through  February  1999.  These
historical  data on the Index are not  necessarily  indicative  of the  future
performance of the Index or what the value of the MITTS Securities may be. Any
historical  upward or  downward  trend in the value of the  Index  during  any
period set forth  below is not any  indication  that the Index is more or less
likely  to  increase  or  decrease  at any time  during  the term of the MITTS
Securities.

<TABLE>
<CAPTION>

                  1990      1991      1992     1993      1994      1995      1996      1997     1998       1999
<S>              <C>       <C>       <C>      <C>       <C>       <C>       <C>       <C>       <C>        <C>

January.......   329.08    343.93    408.78   438.78    481.61    470.42    636.02    786.16      980.28   1,279.64
February......   331.89    367.07    412.70   443.38    467.14    487.39    640.43    790.82    1,049.34   1,238.33
March.........   339.94    375.22    403.69   451.67    445.77    500.71    645.50    757.12    1,101.75
April.........   330.80    375.34    414.95   440.19    450.91    514.71    654.17    801.34    1,111.75
May...........   361.23    389.83    415.35   450.19    456.51    533.40    669.12    848.28    1,090.82
June..........   358.02    371.16    408.14   450.53    444.27    544.75    670.63    885.14    1,133.84
July..........   356.15    387.81    424.22   448.13    458.26    562.06    639.95    954.29    1,120.67
August........   322.56    395.43    414.03   463.56    475.50    561.88    651.99    899.47      957.28
September.....   306.05    387.86    417.80   458.93    462.71    584.41    687.31    947.28    1,017.01
October.......   304.00    392.45    418.68   467.83    472.35    581.50    705.27    914.62    1,098.67
November......   322.22    375.22    431.35   461.79    453.69    605.37    757.02    955.40    1,163.63
December......   330.22    417.09    435.71   466.45    459.27    615.93    740.74    970.43    1,229.23

</TABLE>

License Agreement

         Standard & Poor's ("S&P") does not guarantee the accuracy  and/or the
completeness  of the Index or any data  included  in the  Index.  S&P makes no
warranty,  express or implied, as to results to be obtained by ML&CO., MLPF&S,
holders of the MITTS Securities, or any other person or entity from the use of
the S&P Index or any data included in the Index in connection  with the rights
licensed under the license  agreement  described in this prospectus or for any
other use. S&P makes no express or implied  warranties,  and hereby  expressly
disclaims  all  warranties  of  merchantability  or fitness  for a  particular
purpose  with  respect  to the S&P Index or any data  included  in the  Index.
Without limiting any of the information  above, in no event shall S&P have any
liability  for  any  special,  punitive,  indirect  or  consequential  damage,
including lost profits, even if notified of the possibility of these damages.

         S&P and Merrill  Lynch  Capital  Services,  Inc.  have entered into a
non-exclusive  license  agreement  providing  for the license to Merrill Lynch
Capital  Services,  Inc.,  in exchange  for a fee, of the right to use indices
owned and published by S&P in connection with particular securities, including
the MITTS Securities, and ML&Co. is an authorized sublicensee thereof.

         The license agreement between S&P and Merrill Lynch Capital Services,
Inc. provides that the following language must be stated in this prospectus:

         "The MITTS Securities are not sponsored,  endorsed,  sold or promoted
by S&P. S&P makes no  representation or warranty,  express or implied,  to the
holders of the MITTS  Securities  or any member of the  public  regarding  the
advisability of investing in securities  generally or in the MITTS  Securities
particularly  or the  ability  of the  Index to  track  general  stock  market
performance.  S&P's only relationship to Merrill Lynch Capital Services,  Inc.
and ML&Co.  (other than  transactions  entered into in the ordinary  course of
business) is the licensing of certain  servicemarks and trade names of S&P and
of the Index  which is  determined,  composed  and  calculated  by S&P without
regard to ML&Co.  or the MITTS  Securities.  S&P has no obligation to take the
needs of ML&Co. or the holders of the MITTS  Securities into  consideration in
determining,  composing or calculating  the Index.  S&P is not responsible for
and has not participated in the determination of the timing of the sale of the
MITTS  Securities,  prices at which the MITTS  Securities  are to initially be
sold,  or  quantities  of  the  MITTS  Securities  to  be  issued  or  in  the
determination or calculation of the equation by which the MITTS Securities are
to be converted  into cash.  S&P has no  obligation or liability in connection
with the administration, marketing or trading of the MITTS Securities."


                                  OTHER TERMS

         ML&Co.  issued  the  MITTS  Securities  as a series  of  senior  debt
securities under the 1983 Indenture, dated as of April 1, 1983, as amended and
restated,  between ML&Co. and The Chase Manhattan Bank, as trustee.  A copy of
the 1983  Indenture  is  filed as an  exhibit  to the  registration  statement
relating  to the MITTS  Securities  of which this  prospectus  is a part.  The
following  summaries of the material  provisions of the 1983 Indenture are not
complete and are subject to, and qualified in their  entirety by reference to,
all provisions of the 1983  Indenture,  including the  definitions of terms in
the 1983 Indenture.

         ML&Co.  may issue series of senior debt  securities from time to time
under the 1983 Indenture, without limitation as to aggregate principal amount,
in one or more  series  and upon  terms as  ML&Co.  may  establish  under  the
provisions of the 1983 Indenture.

         The 1983  Indenture  and the MITTS  Securities  are  governed  by and
construed in accordance with the laws of the State of New York.

         ML&Co.  may issue senior debt  securities  with terms  different from
those of senior debt securities previously issued, and issue additional senior
debt securities of a previously issued series of senior debt securities.

         The senior debt  securities  are  unsecured and rank equally with all
other unsecured and  unsubordinated  indebtedness of ML&Co.  However,  because
ML&Co. is a holding company, the rights of ML&Co. and its creditors, including
the holders of senior debt  securities,  to participate in any distribution of
the  assets  of any  subsidiary  upon its  liquidation  or  reorganization  or
otherwise  are  necessarily  subject to the prior  claims of  creditors of the
subsidiary,  except to the extent that a bankruptcy court may recognize claims
of ML&Co.  itself as a creditor of the  subsidiary . In  addition,  dividends,
loans and advances from certain subsidiaries,  including MLPF&S, to ML&Co. are
restricted by net capital requirements under the Exchange Act, and under rules
of exchanges and other regulatory bodies.

 Limitations Upon Liens

         ML&Co. may not, and may not permit any majority-owned  subsidiary to,
create,  assume,  incur or permit to exist any indebtedness for borrowed money
secured  by a  pledge,  lien or other  encumbrance,  other  than  those  liens
specifically  permitted  by the 1983  Indenture,  on the  Voting  Stock  owned
directly or indirectly by ML&Co. of any majority-owned subsidiary,  other than
a  majority-owned  subsidiary  which,  at the  time of the  incurrence  of the
secured  indebtedness,  has a net worth of less than  $3,000,000,  unless  the
outstanding  senior debt  securities are secured  equally and ratably with the
secured indebtedness.

         "Voting  Stock" is defined in the 1983  Indenture as the stock of the
class or classes having general voting power under ordinary  circumstances  to
elect at least a majority of the board of directors, managers or trustees of a
corporation provided that, for the purposes of the 1983 Indenture,  stock that
carries only the right to vote  conditionally on the occurrence of an event is
not considered voting stock whether or not the event has happened.

Limitation  on Disposition of Voting Stock of, and Merger and Sale of Assets 
by, MLPF&S

         ML&Co.  may not sell,  transfer  or  otherwise  dispose of any Voting
Stock of MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of
its Voting Stock, unless, after giving effect to any such transaction,  MLPF&S
remains a Controlled Subsidiary.

         "Controlled  Subsidiary"  is defined in the 1983  Indenture to mean a
corporation  more than 80% of the outstanding  shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

         In addition,  ML&Co. may not permit MLPF&S to:

          o   merge or consolidate, unless the surviving  company is a 
              Controlled Subsidiary, or 
    

          o   convey or transfer its properties and assets substantially as an
              entirety, except to one or more Controlled Subsidiaries.

Merger and Consolidation

   
         ML&Co.  may  consolidate or merge with or into any other  corporation
and ML&Co. may sell, lease or convey all or substantially all of its assets to
any corporation, provided that:

          o   the  resulting   corporation,   if  other  than  ML&Co.,   is  a
              corporation  organized and existing under the laws of the United
              States of America or any U.S.  state and assumes all of ML&Co.'s
              obligations to:

              o    pay any amounts due and payable or deliverable with respect
                   to all the senior debt securities; and

              o    perform and observe all of ML&Co.'s  obligations  under the
                   1983 Indenture, and

          o   ML&Co. or the successor corporation, as the case may be, is not,
              immediately  after any consolidation or merger, in default under
              the 1983 Indenture.
    

Modification and Waiver

   
         ML&Co.  and the trustee may modify and amend the 1983  Indenture with
the  consent  of  holders  of at least  66 2/3% in  principal  amount  of each
outstanding series of senior debt securities  affected.  However,  without the
consent of each holder of any outstanding  senior debt security  affected,  no
amendment or modification to the 1983 Indenture may:

o             change  the stated  maturity  date of the  principal  of, or any
              installment  of interest or Additional  Amounts  payable on, any
              senior debt  security or any premium  payable on redemption , or
              change the redemption price;

o             reduce the  principal  amount of, or the interest or  Additional
              Amounts  payable  on, any  senior  debt  security  or reduce the
              amount of  principal  which  could be  declared  due and payable
              before the stated maturity date;

o             change the place or currency of any payment of  principal or any
              premium,  interest or Additional  Amounts  payable on any senior
              debt security;

o             impair the right to institute suit for the enforcement of any 
              payment on or with respect to any  senior debt security;

o             reduce the  percentage  in principal  amount of the  outstanding
              senior  debt  securities  of any  series,  the  consent of whose
              holders is required to modify or amend the 1983 Indenture; or

o             modify the foregoing  requirements  or reduce the  percentage of
              outstanding  senior debt securities  necessary to waive any past
              default to less than a majority.

         No  modification or amendment of ML&Co.'s  Subordinated  Indenture or
any Subsequent Indenture for subordinated debt securities may adversely affect
the rights of any holder of ML&Co.'s senior  indebtedness  without the consent
of each  holder  affected.  The  holders of at least a majority  in  principal
amount of outstanding  senior debt  securities of any series may, with respect
to that  series,  waive  past  defaults  under  the 1983  Indenture  and waive
compliance  by  ML&Co.  with  provisions  in the  1983  Indenture,  except  as
described under "--Events of Default".

 Events of Default

         Each of the  following  will be Events of  Default  with  respect  to
senior debt securities of any series :

          o  default in the payment of any interest or Additional Amounts  
             payable when due and continuing for 30 days; 

          o  default in the payment of any principal  or premium when due; 

          o  default in the deposit of any sinking fund payment, when due; 

          o  default in the  performance  of any other  obligation  of ML&Co.
             contained in the 1983  Indenture  for the benefit of that series
             or in the senior debt securities of that series,  continuing for
             60 days after written notice as provided in the 1983 Indenture;

          o  specified events in bankruptcy, insolvency or reorganization of 
             ML&Co.; and 

          o  any other Event of Default  provided with respect to senior debt
             securities  of that series which are not  inconsistent  with the
             1983 Indenture.

         If an Event of  Default  occurs and is  continuing  for any series of
senior debt securities,  other than as a result of the bankruptcy,  insolvency
or  reorganization  of ML&Co.,  the  trustee or the holders of at least 25% in
principal amount of the outstanding  senior debt securities of that series may
declare all  amounts,  or any lesser  amount  provided  for in the senior debt
securities,  due and payable or deliverable  immediately.  At any time after a
declaration  of  acceleration  has been  made  with  respect  to  senior  debt
securities  of any series but before the  trustee  has  obtained a judgment or
decree for payment of money , the holders of a majority in principal amount of
the  outstanding  senior  debt  securities  of that  series  may  rescind  any
declaration of acceleration and its  consequences,  if all payments due, other
than those due as a result of  acceleration,  have been made and all Events of
Default have been remedied or waived.

         The  holders of a majority in  principal  amount or  aggregate  issue
price of the  outstanding  senior debt securities of that series may waive any
Event of Default with respect to that series, except a default:

          o   in the payment of any amounts due and payable or deliverable 
              under the debt securities of that series; or

          o   in respect of an obligation  or provision of the 1983  Indenture
              which  cannot be  modified  under  the  terms of that  Indenture
              without the consent of each holder of each outstanding  security
              of each series of senior debt securities affected.

         The  holders of a majority  in  principal  amount of the  outstanding
senior debt  securities  of a series may direct the time,  method and place of
conducting  any  proceeding  for  any  remedy  available  to  the  trustee  or
exercising  any trust or power  conferred on the trustee with respect to those
senior debt  securities,  provided that any direction shall not be in conflict
with any rule of law or the 1983 Indenture.  Before proceeding to exercise any
right or power under the 1983  Indenture at the direction of the holders,  the
trustee shall be entitled to receive from the holders  reasonable  security or
indemnification  against the costs,  expenses and  liabilities  which might be
incurred by it in complying with any direction.

         The MITTS  Securities  and other  series  of senior  debt  securities
issued under the 1983  Indenture do not have the benefit of any  cross-default
provisions with other indebtedness of ML&Co.

         ML&Co. is required to furnish to the trustee  annually a statement as
to  the  fulfillment  by  ML&Co.  of all of its  obligations  under  the  1983
Indenture.
    


<PAGE>


   
                          PROJECTED PAYMENT SCHEDULE

         Solely  for  purposes  of  applying  the  final  Treasury  Department
Regulations  (the "Final  Regulations")  concerning  the United States Federal
income tax  treatment  of  contingent  payment debt  instruments  to the MITTS
Securities,  ML&Co. has determined that the projected payment schedule for the
MITTS Securities will consist of payment on the maturity date of the principal
amount and a projected  Supplemental  Redemption  Amount  equal to $4.8955 per
unit (the  "Projected  Supplemental  Redemption  Amount").  This represents an
estimated yield on the MITTS Securities  equal to 5.78% per annum  (compounded
semiannually).

         The  projected  payment   schedule,   including  both  the  Projected
Supplemental   Redemption   Amount  and  the  estimated  yield  on  the  MITTS
Securities,  has been  determined  solely for United States Federal income tax
purposes,  for  purposes  of  applying  the  Final  Regulations  to the  MITTS
Securities,  and is neither a  prediction  nor a guarantee  of what the actual
Supplemental  Redemption  Amount  will  be,  or that the  actual  Supplemental
Redemption Amount will even exceed zero.

         The  following  table sets forth the amount of interest  that will be
deemed to have  accrued  with  respect  to each  unit of the MITTS  Securities
during each accrual  period over the term of the MITTS  Securities  based upon
the projected  payment schedule for the MITTS  Securities  (including both the
Projected  Supplemental  Redemption  Amount and the  estimated  yield equal to
5.78%  per annum  (compounded  semiannually))  as  determined  by  ML&Co.  for
purposes of applying the Final Regulations to the MITTS Securities:
    


<TABLE>
<CAPTION>

   
                                                                                             Total Interest
                                                                                               Deemed to
                                                                                              Have Accrued
                                                                                              On the MITTS
                                                                Interest Deemed to             Securities
                                                                  Accrue During               as of End of
                                                                  Accrual Period             Accrual Period
                      Accrual Period                               (per  unit)               (per  unit)

    

<S>                                                                  <C>                        <C>    

September 29, 1998 through March 28, 1999..................          $0.2850                    $0.2850
March 29, 1999 through September 28, 1999..................          $0.2972                    $0.5822
September 29, 1999 through March 28, 2000..................          $0.3058                    $0.8880
March 29, 2000 through September 28, 2000..................          $0.3147                    $1.2027
September 29, 2000 through March 28, 2001..................          $0.3238                    $1.5265
March 29, 2001 through September 28, 2001..................          $0.3331                    $1.8596
September 29, 2001 through March 28, 2002..................          $0.3427                    $2.2023
March 29, 2002 through September 28, 2002..................          $0.3527                    $2.5550
September 29, 2002 through March 28, 2003..................          $0.3628                    $2.9178
March 29, 2003 through September 28, 2003..................          $0.3733                    $3.2911
September 29, 2003 through March 28, 2004..................          $0.3842                    $3.6753
March 29, 2004 through September 28, 2004..................          $0.3952                    $4.0705
September 29, 2004 through March 28, 2005..................          $0.4066                    $4.4771
March 29, 2005 through September 28, 2005..................          $0.4184                    $4.8955

</TABLE>

- ---------
   
Projected Supplemental Redemption Amount = $4.8955 per unit.

         Prospective  investors in the MITTS  Securities  should consult their
own tax advisors  concerning the application of the Final Regulations to their
investment in the MITTS Securities. Investors in the MITTS Securities may also
obtain the projected payment schedule, as determined by ML&Co. for purposes of
the  application  of  the  Final  Regulations  to  the  MITTS  Securities,  by
submitting a written request for the information to Merrill Lynch & Co., Inc.,
Attn: Darryl W. Colletti,  Corporate  Secretary's  Office,  100 Church Street,
12th Floor, New York, New York 10080-6512.


                      WHERE YOU CAN FIND MORE INFORMATION

         We file reports, proxy statements and other information with the SEC.
Our SEC filings are also  available over the Internet at the SEC's web site at
http://www.sec.gov.  You may  also  read  and  copy  any  document  we file by
visiting the SEC's public  reference rooms in Washington,  D.C., New York, New
York, and Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further
information  about the public  reference  rooms.  You may also inspect our SEC
reports and other  information at the New York Stock Exchange,  Inc., 20 Broad
Street, New York, New York 10005.

         We have  filed a  registration  statement  on Form  S-3  with the SEC
covering the MITTS Securities and other securities. For further information on
ML&Co.  and  the  MITTS  Securities,  you  should  refer  to our  registration
statement and its exhibits.  This prospectus summarizes material provisions of
contracts and other documents that we refer you to. Because the prospectus may
not contain all the information that you may find important, you should review
the full text of these  documents.  We have included copies of these documents
as exhibits to our registration statement of which this prospectus is a part.


               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

         The SEC allows us to incorporate by reference the information we file
with them, which means:

          o  incorporated documents are considered part of the prospectus;

          o  we can disclose important information to you by referring you to
             those documents; and

          o  information that we file with the SEC will automatically  update
             and supersede this incorporated information.

         We  incorporate  by reference the  documents  listed below which were
filed with the SEC under the Exchange Act:

          o   annual report on Form 10-K for the year ended December 25, 1998; 
              and

          o   current reports on Form 8-K dated December 28, 1998, January 19,
              1999,  February 17, 1999,  February 18, 1999, February 22, 1999,
              February 23, 1999 and March 26, 1999.

         We also incorporate by reference each of the following documents that
we will  file  with the SEC  after  the  date of this  prospectus  until  this
offering is completed or after the date of this initial registration statement
and before the effectiveness of the registration statement:

          o   reports filed under Sections 13(a) and (c) of the Exchange Act;

          o   definitive  proxy or information  statements filed under Section
              14 of  the  Exchange  Act  in  connection  with  any  subsequent
              stockholders' meeting; and

          o   any reports filed under Section 15(d) of the Exchange Act.

         You should rely only on  information  contained  or  incorporated  by
reference in this prospectus.  We have not, and MLPF&S has not, authorized any
other person to provide you with different information. If anyone provides you
with different or inconsistent information,  you should not rely on it. We are
not,  and  MLPF&S is not,  making  an offer to sell  these  securities  in any
jurisdiction where the offer or sale is not permitted.

         You should assume that the  information  appearing in this prospectus
is accurate as of the date of this  prospectus  only. Our business,  financial
condition and results of operations may have changed since that date.

         You may  request a copy of any filings  referred to above  (excluding
exhibits), at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan, Jr.,  Corporate  Secretary's  Office,  Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.


                             PLAN OF DISTRIBUTION

         This  prospectus has been prepared in connection with secondary sales
of the MITTS  Securities  and is to be used by MLPF&S when  making  offers and
sales related to market-making transactions in the MITTS Securities.

         MLPF&S  may  act  as  principal  or  agent  in  these   market-making
transactions.

         The MITTS  Securities  may be offered on the NYSE or off the exchange
in negotiated transactions or otherwise.

         The  distribution  of  the  MITTS  Securities  will  conform  to  the
requirements set forth in the applicable  sections of Rule 2720 of the Conduct
Rules of the NASD.
    


                                    EXPERTS

   
         The  consolidated   financial  statements  and  the  related  financial
statement schedule  incorporated in this prospectus by reference from the Annual
Report on Form 10-K of Merrill  Lynch & Co.,  Inc.  and  subsidiaries  have been
audited  by  Deloitte & Touche  LLP,  independent  auditors,  as stated in their
reports  (which  express  an  unqualified   opinion  and  which  report  on  the
consolidated  financial  statements  includes an  explanatory  paragraph for the
change in  accounting  method  for  certain  internal-use  software  development
costs),   which  are  incorporated  herein  by  reference,   and  have  been  so
incorporated  in  reliance  upon the  reports  of such  firm  given  upon  their
authority as experts in accounting and auditing.
    

<PAGE>
   
     The information in this prospectus is not complete and may be changed. We
may not sell these securities until the registration statement filed with the
Securities and Exchange Commission is effective. This prospectus is not an
offer to sell these securities and it is not soliciting an offer to buy these
securities in any state where the offer or sale is not permitted.
    



                             Subject to Completion
   
                  Preliminary Prospectus dated March 29, 1999
    



P R O S P E C T U S
   
    

                           Merrill Lynch & Co., Inc.
   
               S&P 500(R) Market Index Target-Term Securities SM
    
                               due July 1, 2005
   
                             "MITTS(R) Securities"
                         $10 principal amount per unit


     This prospectus is to be used by Merrill Lynch & Co., Merrill Lynch,
Pierce, Fenner & Smith Incorporated, our wholly-owned subsidiary, when making
offers and sales related to market-making transactions in the MITTS Securities
 .
    


<PAGE>


<TABLE>
<CAPTION>

<S>                                                           <C>

   
The MITTS Securities:                                         Payment at Maturity:
o   100% principal protection at maturity                     o   On the maturity date, for each unit of the MITTS Securities you
o   No payments  before the  maturity date                        own, we will pay you an amount equal to the sum of the  principal
o   Senior unsecured debt securities of Merrill                   amount of each unit and an additional amount based on the
    Lynch & Co., Inc.                                             percentage increase, if any, in the value of the index, adjusted
o   Linked to the value of the S&P 500 Index                      as described in this prospectus.
o   The MITTS  Securities  are listed on the American         o   You will receive no less than the principal amount of your MITTS
    Stock  Exchange under the symbol "MLF".                       Securities
    

</TABLE>

<PAGE>


   
               Investing in the MITTS Securities involves risks.
                    See "Risk Factors" beginning on page 3.


     Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if
this prospectus is truthful or complete. Any representation to the contrary is
a criminal offense.

     The sale price of the MITTS Securities will be the prevailing market
price at the time of sale.


                               ----------------
    

                              Merrill Lynch & Co.
   
                               ----------------

                 The date of this prospectus is      , 1999.
    
- --------------------
   
"MITTS" and "Market Index Target-Term Securities" are registered service mark
owneds by Merrill Lynch & Co., Inc. "Standard & Poor's(R)", "Standard & Poor's
500", "S&P 500(R)", "S&P(R)" and "500", are trademarks of The McGraw-Hill
Companies, Inc. and have been licensed for use by Merrill Lynch Capital
Services, Inc. and ML&Co. is an authorized sublicensee.
    


<PAGE>


   
                               Table of Contents

<TABLE>
<CAPTION>

                                                                                                               Page

<S>                                                                                                            <C>

RISK FACTORS......................................................................................................3
   You may not earn a return on your investment...................................................................3
   Your yield may be lower than the yield on a standard debt security of comparable maturity......................3
   Your return will not reflect the return of owning the stocks underlying the index..............................3
   There may be an uncertain trading market for the MITTS Securities in the future................................3
   Factors affecting trading value of the MITTS Securities........................................................3
   Amounts payable on the MITTS Securities may be limited by state law............................................4
   Purchases and sales by us and our affiliates may affect your return............................................5
   Potential conflicts of interest................................................................................5
   Other Considerations...........................................................................................5

MERRILL LYNCH & CO., INC.........................................................................................6
    

RATIO OF EARNINGS TO FIXED CHARGES................................................................................7

   
DESCRIPTION OF THE MITTS SECURITIES...............................................................................8
   Payment at Maturity............................................................................................8
   Adjustments to the Index; Market Disruption Events............................................................11
   Discontinuance of the Index...................................................................................11
   Events of Default and Acceleration............................................................................12
   Global Securities.............................................................................................12
   Same-Day Settlement and Payment...............................................................................15

THE INDEX........................................................................................................15
   Computation of the Index......................................................................................15
   Historical Data on the Index..................................................................................17
   License Agreement.............................................................................................17

OTHER TERMS......................................................................................................18
   Limitations Upon Liens........................................................................................18
   Limitation on Disposition of Voting Stock of, and Merger and Sale of Assets by, MLPF&S........................19
   Merger and Consolidation......................................................................................19
   Modification and Waiver.......................................................................................19
   Events of Default.............................................................................................20

PROJECTED PAYMENT SCHEUDLE.......................................................................................22

WHERE YOU CAN FIND MORE INFORMATION..............................................................................23

INCORPORATION OF INFORMATION WE FILE WITH THE SEC................................................................23

PLAN OF DISTRIBUTION.............................................................................................24

EXPERTS..........................................................................................................24
    

</TABLE>

<PAGE>


                                 RISK FACTORS

   
     Your investment in the MITTS Securities will involve risks. You should
carefully consider the following discussion of risks before deciding whether
an investment in the MITTS Securities is suitable for you.


You may not earn a return on your investment

     You should be aware that at maturity we will pay you no more than $10 for
each unit of the MITTS Securities you own if the average value of the index
over five trading days shortly before the maturity date is less than 1,119.49,
the value of the index on the date the MITTS Securities were priced. This will
be true even if at some time during the life of the MITTS Securities, the
value of the index, as adjusted, was higher than 1,119.49 but later falls
below 1,119.49.
    


Your yield may be lower than the yield on a standard debt security of comparable
maturity

   
     The amount we pay you at maturity may be less than the return you could
earn on other investments. Your yield may be less than the yield you would
earn if you bought a standard senior non-callable debt security of Merrill
Lynch & Co., Inc. with the same maturity date. Your investment may not reflect
the full opportunity cost to you when you take into account factors that
affect the time value of money.


Your return will not reflect the return of owning the stocks underlying the
index

     Your return will not reflect the return you would realize if you actually
owned the stocks underlying the index and received the dividends paid on those
stocks because of the reduction caused by the adjustment factor described in
this prospectus and because the index is calculated by reference to the prices
of the common stocks included in the index without taking into consideration
the value of dividends paid on those stocks.


There may be an uncertain trading market for the MITTS Securities in the future

     Although the MITTS Securities are listed on the AMEX under the symbol
"MLF", you cannot assume that a trading market will continue to exist for the
MITTS Securities. If a trading market in the MITTS Securities continues to
exist, you cannot assume that that there will be liquidity in the trading
market. The continued existence of a trading market for the MITTS Securities
will depend on our financial performance and other factors such as the
appreciation, if any, of the value of the index.
    


Factors affecting trading value of the MITTS Securities

   
     We believe that the value of the index and a number of other factors will
affect the trading value of the MITTS Securities . Some of these factors are
interrelated in complex ways; as a result, the effect of any one factor may be
offset or magnified by the effect of another factor. The following paragraphs
describe the expected impact on the trading value of the MITTS Securities
given a change in a specific factor, assuming all other conditions remain
constant.

   o Index Value. We expect that the market value of the MITTS Securities will
     depend substantially on the amount by which the index, as reduced by the
     adjustment factor, exceeds 1,119.49. If you choose to sell your MITTS
     Securities when the value of the index, as reduced by the adjustment
     factor, exceeds 1,119.49, you may receive substantially less than the
     amount that would be payable at maturity based on this value because of
     the expectation that the index will continue to fluctuate until shortly
     before the maturity date when the average value of the index is
     determined. If you choose to sell your MITTS Securities when the value of
     the index is below 1,119.49, you may receive less than the $10 principal
     amount per unit of MITTS Securities. In general, rising U.S. dividend
     rates, or dividends per share, may increase the value of the index while
     falling U.S. dividend rates may decrease the value of the index.
     Political, economic and other developments that affect the stocks
     underlying the index may also affect the value of the index and the value
     of the MITTS Securities.

   o Interest Rates. Because we will pay, at a minimum, the principal amount
     per unit of MITTS Securities at maturity, we expect that changes in
     interest rates will affect the trading value of the MITTS Securities . In
     general, if U.S. interest rates increase, we expect that the trading
     value of the MITTS Securities will decrease and, conversely, if U.S.
     interest rates decrease, we expect the trading value of the MITTS
     Securities will increase. Interest rates may also affect the U.S. economy
     and, in turn, the value of the index. Rising interest rates may lower the
     value of the index and, thus, the MITTS Securities. Falling interest
     rates may increase the value of the index and, thus, may increase the
     value of the MITTS Securities.

   o Volatility of the Index. Volatility is the term used to describe the size
     and frequency of market fluctuations. Generally, if the volatility of the
     index increases, we expect that the trading value of the MITTS Securities
     will increase. If the volatility of the index decreases, we expect that
     the trading value of the MITTS Securities will decrease.

   o Time Remaining to Maturity. The MITTS Securities may trade at a value
     above that which would be expected based on the level of interest rates
     and the index. This difference will reflect a "time premium" due to
     expectations concerning the value of the index during the period prior to
     the stated maturity of the MITTS Securities. However, as the time
     remaining to the stated maturity of the MITTS Securities decreases, we
     expect that this time premium will decrease, lowering the trading value
     of the MITTS Securities.

   o Dividend Yields. If dividend yields on the stocks included in the index
     increase, we expect that the value of the MITTS Securities will decrease.
     Conversely, if dividend yields on the stock comprising the index
     decrease, we expect that the value of the MITTS Securities will increase.

   o Changes in Our Credit Ratings. Our credit ratings are an assessment of
     our ability to pay our obligations. Consequently, real or anticipated
     changes in our credit ratings may affect the trading value of the MITTS
     Securities. However, because your return on your MITTS Securities is
     dependent upon factors in addition to our ability to pay our obligations
     under the MITTS Securities, such as the percentage increase in the value
     of the index at maturity, an improvement in our credit ratings will not
     reduce investment risks related to the MITTS Securities.

     It is important for you to understand that the impact of one of the
factors specified above, such as an increase in interest rates, may offset
some or all of any increase in the trading value of the MITTS Securities
attributable to another factor, such as an increase in the index value.

     In general, assuming all relevant factors are held constant, we expect
that the effect on the trading value of the MITTS Securities of a given change
in most of the factors listed above will be less if it occurs later in the
term of the MITTS Securities than if it occurs earlier in the term of the
MITTS Securities . However, we expect that the effect on the trading value of
the MITTS Securities of a given increase in the value of the index will be
greater if it occurs later in the term of the MITTS Securities than if it
occurs earlier in the term of the MITTS Securities.


Amounts payable on the MITTS Securities may be limited by state law

     New York State law governs the senior indenture under which the MITTS
Securities were issued. New York has usury laws that limit the amount of
interest that can be charged and paid on loans, which includes debt securities
like the MITTS Securities. Under present New York law, the maximum rate of
interest is 25% per annum on a simple interest basis. This limit may not apply
to debt securities in which $2,500,000 or more has been invested.
    

     While we believe that New York law would be given effect by a state or
Federal court sitting outside of New York, many other states also have laws
that regulate the amount of interest that may be charged to and paid by a
borrower. We will promise, for the benefit of the holders of the MITTS
Securities, to the extent permitted by law, not to voluntarily claim the
benefits of any laws concerning usurious rates of interest.


   
Purchases and sales by  us and our affiliates may affect your return

     We and our affiliates may from time to time buy or sell the stocks
underlying the index for our own accounts for business reasons or in
connection with hedging our obligations under the MITTS Securities. These
transactions could affect the price of these stocks and the value of the index
in a manner that would be adverse to your investment in the MITTS Securities.


Potential conflicts of interest

     Our subsidiary, Merrill Lynch, Pierce, Fenner & Smith Incorporated or
MLPF&S, is our agent for the purposes of calculating the value of the index
and the amount payable to you at maturity. In some circumstances, MLPF&S's
role as our subsidiary and its responsibilities as calculation agent for the
MITTS Securities could give rise to conflicts of interests. These conflicts
could occur, for instance, in connection with its determination as to whether
the value of the index can be calculated on a particular trading day, or in
connection with judgments that it would be required to make in the event of a
discontinuance of the index. See "Description of the MITTS
Securities--Adjustments to the Index; Market Disruption Events" and
"--Discontinuance of the Index" in this prospectus. MLPF&S is required to
carry out its duties as calculation agent in good faith and using its
reasonable judgment. However, you should be aware that because we control
MLPF&S, potential conflicts of interest could arise.

     We have entered into an arrangement with one of our a subsidiaries to
hedge the market risks associated with our obligation to pay amounts due at
maturity on the MITTS Securities. This subsidiary expects to make a profit in
connection with this arrangement. We did not seek competitive bids for this
arrangement from unaffiliated parties.
    


Other Considerations

     It is suggested that you should reach an investment decision regarding
the MITTS Securities only after carefully considering the suitability of the
MITTS Securities in the light of your particular circumstances.

     You should also consider the tax consequences of investing in the MITTS
Securities and should consult your tax advisor.


<PAGE>


   
                           MERRILL LYNCH & CO., INC.

     We are a holding company that, through our U.S. and non-U.S. subsidiaries
and affiliates such as Merrill Lynch, Pierce, Fenner & Smith Incorporated,
Merrill Lynch Government Securities Inc., Merrill Lynch Capital Services,
Inc., Merrill Lynch International, Merrill Lynch Capital Markets Bank Ltd.,
Merrill Lynch Asset Management L.P. and Merrill Lynch Mercury Asset
Management, provides investment, financing, advisory, insurance, and related
products on a global basis, including:

     o    securities brokerage, trading and underwriting;

     o    investment banking, strategic services, including mergers and
          acquisitions and other corporate finance advisory activities;

     o    asset management and other investment advisory and recordkeeping
          services;

     o    trading and brokerage of swaps, options, forwards, futures and other
          derivatives;

     o    securities clearance services;

     o    equity, debt and economic research;

     o    banking, trust and lending services, including mortgage lending and
          related services; and

     o    insurance sales and underwriting services.

     We provide these products and services to a wide array of clients,
including individual investors, small businesses, corporations, governments,
governmental agencies and financial institutions.

     Our principal executive office is located at World Financial Center,
North Tower, 250 Vesey Street, New York, New York 10281; our telephone number
is (212) 449-1000.

     If you want to find more information about us, please see the sections
entitled "Where You Can Find More Information" and "Incorporation of
Information We File with the SEC" in this prospectus.

     In this prospectus, "ML&Co.", "we", "us" and "our" refer specifically to
Merrill Lynch & Co., Inc., the holding company. ML&Co. is the issuer of the
MITTS Securities described in this prospectus.
    


<PAGE>


   
                      RATIO OF EARNINGS TO FIXED CHARGES

     In 1998, we acquired the outstanding shares of Midland Walwyn, Inc., in a
transaction accounted for as a pooling-of-interests. The following information
for the fiscal years 1994 through 1997 has been restated as if the two
entities had always been combined.

     The following table sets forth our historical ratios of earnings to fixed
charges for the periods indicated:



                                           Year Ended Last Friday in December
                                        1994     1995     1996     1997     1998
                                        ----------------------------------------

Ratio of earnings to fixed charges(a)   1.2      1.2      1.2      1.2      1.1
- ----------
(a)   The effect of combining Midland Walwyn did not change the ratios reported
      for the fiscal years 1994 through 1997.

     For the purpose of calculating the ratio of earnings to fixed charges,
"earnings" consist of earnings from continuing operations before income taxes
and fixed charges, excluding capitalized interest and preferred security
dividend requirements. "Fixed charges" consist of interest costs, the interest
factor in rentals, amortization of debt issuance costs, preferred security
dividend requirements of subsidiaries, and capitalized interest.
    


<PAGE>


                      DESCRIPTION OF THE MITTS SECURITIES

   
     On June 26, 1998, ML&Co. issued $285,000,000 aggregate principal amount
of S&P 500 MITTS Securities due July 1, 2005. The MITTS Securities were issued
as a series of Senior Debt Securities under the 1983 Indenture which is more
fully described in this prospectus.
    

     The MITTS Securities will mature on July 1, 2005.

   
     While at maturity a beneficial owner of a MITTS Security will receive the
principal amount of the MITTS Security plus the Supplemental Redemption Amount
described below, if any, there will be no other payment of interest, periodic
or otherwise. See "-- Payment at Maturity" below.

     The MITTS Securities are not subject to redemption by ML&Co. or at the
option of any beneficial owner prior to maturity. Upon the occurrence of an
Event of Default with respect to the MITTS Securities, beneficial owners of
the MITTS Securities may accelerate the maturity of the MITTS Securities, as
described under "-- Events of Default and Acceleration" and "Other Terms --
Events of Default" in this prospectus.

     The MITTS Securities were issued in denominations of whole units.
    


Payment at Maturity

   
     At the maturity date, a beneficial owner of a MITTS Security will be
entitled to receive the principal amount of each unit plus the Supplemental
Redemption Amount, if any, all as provided below. If the Adjusted Ending Value
does not exceed the Starting Value, a beneficial owner of a MITTS Security
will be entitled to receive only the principal amount of its MITTS Securities.

     The "Supplemental Redemption Amount" for a MITTS Security will be
determined by the calculation agent and will equal:


<TABLE>
<CAPTION>

     <S>                                                        <C>

     "Principal Amount" of the MITTS Security ($10 per  unit) X ( Adjusted Ending Value - Starting Value )
                                                                  --------------------------------------
                                                                               Starting Value

</TABLE>

    

     provided, however, that in no event will the Supplemental Redemption
Amount be less than zero.

   
     The "Starting Value" equals 1,119.49.

     The "Adjusted Ending Value" will be determined by the calculation agent
and will equal the average or arithmetic mean of the closing values of the S&P
500 Index (the "Index") as adjusted by the Adjustment Factor (the "Adjusted
Index Value") determined on each of the first five Calculation Days during the
Calculation Period. If there are fewer than five but more than one Calculation
Days, then the Adjusted Ending Value will equal the average or arithmetic mean
of the closing values of the Adjusted Index Value on these Calculation Days.
If there is only one Calculation Day, then the Adjusted Ending Value will
equal the closing value of the Adjusted Index Value on that Calculation Day.
If no Calculation Days occur during the Calculation Period, then the Adjusted
Ending Value will equal the closing value of the Adjusted Index Value
determined on the last scheduled Index Business Day in the Calculation Period,
regardless of the occurrence of a Market Disruption Event on that day.

     The "Adjustment Factor" equals 1.3% per annum and will be prorated based
on a 365-day year and applied each calendar day during the term of the MITTS
Securities to reduce the Index. As a result of the application of the
Adjustment Factor, the adjusted value of the Index used to calculate your
Supplemental Redemption Amount at the stated maturity of the MITTS Securities
will be approximately 8.78% less than the actual Index value on any day during
the Calculation Period.

     The "Calculation Period" means the period from and including the seventh
scheduled Index Business Day prior to the maturity date to and including the
second scheduled Index Business Day prior to the maturity date.

     "Calculation Day" means any Index Business Day during the Calculation
Period on which a Market Disruption Event has not occurred.

     For purposes of determining the Adjusted Ending Value, an "Index Business
Day" is a day on which the NYSE and the AMEX are open for trading and the
Index or any Successor Index, as defined on page 11 below, is calculated and
published.

     All determinations made by the calculation agent shall be at the sole
discretion of the calculation agent and, absent a determination by the
calculation agent of a manifest error, shall be conclusive for all purposes
and binding on ML&Co. and beneficial owners of the MITTS Securities.
    


<PAGE>


Hypothetical Returns

     The following table illustrates, for a range of hypothetical values of
the Index during the Calculation Period,

   
          o    the Adjusted Ending Value used to calculate the Supplemental
               Redemption Amount;

          o    the percentage change from the Starting Value to the Adjusted
               Ending Value;

          o    the total amount payable per unit of MITTS Securities;
    

          o    the total rate of return on the MITTS Securities;

   

          o    the pretax annualized rate of return on the MITTS Securities;
               and

          o    the pretax annualized rate of return of the stocks underlying
               the Index, which includes an assumed aggregate dividend yield
               of 1.40% per annum, as more fully described below.
    

<TABLE>
<CAPTION>


                                             Total Amount                         Pretax
                             Percentage      Payable at                         Annualized          Pretax
 Hypothetical    Adjusted      Change          Maturity      Total Rate of        Rate of          Annualized
     Index      Ending      of Adjusted        Per $10       Return on the     Return on the    Rate of Return
 Value During     Value        Ending         Principal         MITTS       MITTS Securities(1)        on
      the                  Value Over the     Amount of       Securities                            Stocks
 Calculation               Starting Value  MITTS Securities                                        Underlying
    Period                                                                                      the Index(1)(2)

<S>             <C>        <C>             <C>               <C>           <C>                  <C>

      559.75      510.62      -54.39%         $ 10.00            0.00%             0.00%            -8.25%
      671.69      612.75      -45.27%         $ 10.00            0.00%             0.00%            -5.77%
      783.64      714.87      -36.14%         $ 10.00            0.00%             0.00%            -3.64%
      895.59      817.00      -27.02%         $ 10.00            0.00%             0.00%            -1.77%
    1,007.54      919.12      -17.90%         $ 10.00            0.00%             0.00%            -0.11%
    1,119.49    1,021.25       -8.78%         $ 10.00            0.00%             0.00%             1.40%
    1,231.44    1,123.37        0.35%         $ 10.03            0.35%             0.05%             2.77%
    1,343.39    1,225.50        9.47%          $10.95            9.47%             1.29%             4.04%
    1,455.34    1,327.62       18.59%          $11.86           18.59%             2.44%             5.21%
    1,567.29    1,429.75       27.71%          $12.77           27.71%             3.52%             6.30%
    1,679.24    1,531.87       36.84%          $13.68           36.84%             4.52%             7.32%
    1,791.18    1,634.00       45.96%          $14.60           45.96%             5.46%             8.28%
    1,903.13    1,736.12       55.08%          $15.51           55.08%             6.35%             9.19%
    2,015.08    1,838.25       64.20%          $16.42           64.20%             7.19%            10.05%
    2,127.03    1,940.37       73.33%          $17.33           73.33%             7.99%            10.87%
    2,238.98    2,042.50       82.45%          $18.24           82.45%             8.75%            11.65%
    2,350.93    2,144.62       91.57%          $19.16           91.57%             9.48%            12.40%
    2,462.88    2,246.75      100.69%          $20.07          100.69%            10.17%            13.11%
    2,574.83    2,348.87      109.82%          $20.98          109.82%            10.84%            13.80%
    2,686.78    2,451.00      118.94%          $21.89          118.94%            11.48%            14.46%
    2,798.73    2,553.12      128.06%          $22.81          128.06%            12.10%            15.09%

</TABLE>


   
(1) The  annualized  rates of  return  specified  in the  preceding  table are
    calculated  on a semiannual  bond  equivalent  basis.

(2) This rate of return assumes:
               (a) a constant dividend yield of 1.40% per annum, paid
               quarterly from the date of initial delivery of MITTS
               Securities, applied to the value of the Index at the end of
               each quarter assuming this value increases or decreases
               linearly from the Starting Value to the hypothetical Index
               value during the Calculation Period;
               (b) no transaction fees or expenses;
               (c) an investment term from June 26, 1998 to July 1, 2005; and
               (d) a final Index value equal to the hypothetical Index value
               during the Calculation Period.
(3) The Starting Value equals 1,119.49.

     The above figures are for purposes of illustration only. The actual
Supplemental Redemption Amount received by investors and the total and pretax
annualized rate of return will depend entirely on the actual Adjusted Ending
Value determined by the calculation agent as provided in this prospectus.
    


Adjustments to the Index; Market Disruption Events

   
     If at any time the method of calculating the Index, or its value , is
changed in any material respect, or if the Index is in any other way modified
so that the Index does not, in the opinion of the calculation agent, fairly
represent the value of the Index had such changes or modifications not been
made, then, from and after that time, the calculation agent shall, at the
close of business in New York, New York, on each date that the closing value
with respect to the Adjusted Ending Value is to be calculated, make any
adjustments as, in the good faith judgment of the calculation agent, may be
necessary in order to arrive at a calculation of a value of a stock index
comparable to the Index as if any changes or modifications had not been made,
and calculate the closing value with reference to the Index, as adjusted.
Accordingly, if the method of calculating the Index is modified so that the
value of the Index is a fraction or a multiple of what it would have been if
it had not been modified, due to a split in the Index, then the calculation
agent shall adjust the Index in order to arrive at a value of the Index as if
it had not been modified for example, as if the split had not occurred.

     "Market Disruption Event" means either of the following events; as
determined by the calculation agent:

     (a) the suspension or material limitation on trading, for more than two
hours of trading, or during the one-half hour period preceding the close of
trading on the applicable exchange, in each case, in 20% or more of the stocks
which then comprise the Index; or

     (b) the suspension or material limitation, in each case, for more than
two hours of trading, whether by reason of movements in price otherwise
exceeding levels permitted by the relevant exchange or otherwise, in

          (1)  futures contracts related to the Index, or options on futures
               contracts, which are traded on any major U.S. exchange or =
    

          (2)  option contracts related to the Index which are traded on any
               major U.S. exchange.

   
     For the purposes of clause (a) above, any limitations on trading during
significant market fluctuations under New York Stock Exchange Rule 80A, or any
applicable rule or regulation enacted or promulgated by the NYSE or any other
self regulatory organization or the SEC of similar scope as determined by the
calculation agent, will be considered "material".

         A limitation  on the hours in a trading day and/or  number of days of
trading will not  constitute a Market  Disruption  Event if it results from an
announced change in the regular business hours of the relevant exchange.
    


Discontinuance of the Index

   
     If S&P discontinues publication of the Index and S&P or another entity
publishes a successor or substitute index that the calculation agent
determines, in its sole discretion, to be comparable to the Index (any
successor or substitute index is referred to as a "Successor Index"), then,
upon the calculation agent's notification of the determination to the trustee
and ML&Co., the calculation agent will substitute the Successor Index as
calculated by S&P or any other entity for the Index. Upon any selection by the
calculation agent of a Successor Index, ML&Co. shall cause notice to be given
to holders of the MITTS Securities.

     If S&P discontinues publication of the Index and a Successor Index is not
selected by the calculation agent or is no longer published on any of the
Calculation Days, the value to be substituted for the Index for any
Calculation Day used to calculate the Supplemental Redemption Amount at
maturity will be a value computed by the calculation agent for each
Calculation Day in accordance with the procedures last used to calculate the
Index before the discontinuance. If a Successor Index is selected or the
calculation agent calculates a value as a substitute for the Index as
described below, the Successor Index or value shall be substituted for the
Index for all purposes, including for purposes of determining whether a Market
Disruption Event exists. If the calculation agent calculates a value as a
substitute for the Index, "Index Calculation Day" shall mean any day on which
the calculation agent is able to calculate the value.

     If S&P discontinues publication of the Index before the period during
which the Supplemental Redemption Amount is to be determined and the
calculation agent determines that no Successor Index is available at that
time, then on each Business Day until the earlier to occur of:
    

          o    the determination of the Adjusted Ending Value and

   
          o    a determination by the calculation agent that a Successor Index
               is available,

the calculation agent shall determine the value that would be used in
computing the Supplemental Redemption Amount as described in the preceding
paragraph as if that day were a Calculation Day. The calculation agent will
cause notice of each value to be published not less often than once each month
in The Wall Street Journal, or another newspaper of general circulation, and
arrange for information with respect to the values to be made available by
telephone.

     Despite these alternative arrangements, discontinuance of the publication
of the Index may adversely affect trading in the MITTS Securities.
    


Events of Default and Acceleration

   
     In case an Event of Default with respect to any MITTS Securities has
occurred and is continuing, the amount payable to a beneficial owner of a
MITTS Security upon any acceleration permitted by the MITTS Securities, with
respect to each $10 principal amount per unit, will be equal to the principal
amount per unit and the Supplemental Redemption Amount, if any, calculated as
though the date of early repayment were the stated maturity date of the MITTS
Securities. See "- Payment at Maturity" in this prospectus. If a bankruptcy
proceeding is commenced in respect of ML&Co., the claim of the beneficial
owner of a MITTS Security may be limited, under Section 502(b)(2) of Title 11
of the United States Code, to the principal amount per unit of the MITTS
Security plus an additional amount of contingent interest calculated as though
the date of the commencement of the proceeding were the maturity date of the
MITTS Securities.

     In case of default in payment of the MITTS Securities, whether at the
stated maturity or upon acceleration, from and after the maturity date the
MITTS Securities shall bear interest, payable upon demand of the beneficial
owners thereof, at the rate of 5.90% per annum, to the extent that payment of
any interest shall be legally enforceable, on the unpaid amount due and
payable on that date in accordance with the terms of the MITTS Securities to
the date payment of any amount has been made or duly provided for.


Global Securities

     Description of the Global Securities

     Beneficial owners of the MITTS Securities may not receive physical
delivery of the MITTS Securities nor may they be entitled to have the MITTS
Securities registered in their names. The MITTS Securities currently are
represented by one or more fully registered global securities. Each global
security was deposited with, or on behalf of, The Depository Trust Company or
DTC (DTC, together with any successor thereto, being a "depositary"), as
depositary, registered in the name of Cede & Co. (DTC's partnership nominee).
Unless and until it is exchanged in whole or in part for MITTS Securities in
definitive form, no global security may be transferred except as a whole by
the depositary to a nominee of the depositary or by a nominee of the
depositary to the depositary or another nominee of the depositary or by the
depositary or any nominee to a successor of the depositary or a nominee of
that successor.

     So long as DTC, or its nominee, is a registered owner of a global
security, DTC or its nominee, as the case may be, will be considered the sole
owner or Holder of the MITTS Securities represented by a global security for
all purposes under the 1983 Indenture. Except as provided below, the
beneficial owners of the MITTS Securities represented by a global security
will not be entitled to have the MITTS Securities represented by the global
security registered in their names, will not receive or be entitled to receive
physical delivery of the MITTS Securities in definitive form and will not be
considered the owners or Holders under the 1983 Indenture, including for
purposes of receiving any reports delivered by ML&Co. or the trustee under the
1983 Indenture. Accordingly, each person owning a beneficial interest in a
global security must rely on the procedures of DTC and, if that person is not
a participant of DTC on the procedures of the participant through which that
person owns its interest, to exercise any rights of a Holder under the 1983
Indenture. ML&Co. understands that under existing industry practices, in the
event that ML&Co. requests any action of Holders or that an owner of a
beneficial interest in a global security desires to give or take any action
which a Holder is entitled to give or take under the 1983 Indenture, DTC would
authorize the participants holding the relevant beneficial interests to give
or take any action, and the participants would authorize beneficial owners
owning through those participants to give or take action or would otherwise
act upon the instructions of beneficial owners. Conveyance of notices and
other communications by DTC to participants, by participants to indirect
participants and by participants and indirect participants to beneficial
owners will be governed by arrangements among them, subject to any statutory
or regulatory requirements as may be in effect from time to time.

     DTC Procedures
    

     The following is based on information furnished by DTC:

   
     DTC is the securities depositary for the MITTS Securities. The MITTS
Securities were issued as fully registered securities registered in the name
of Cede & Co., DTC's partnership nominee. One or more fully registered global
securities were issued for the MITTS Securities in the aggregate principal
amount of the MITTS Securities, and were deposited with DTC.

     DTC is a limited-purpose trust company organized under the New York
Banking Law, a "banking organization" within the meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing corporation"
within the meaning of the New York Uniform Commercial Code, and a "clearing
agency" registered under to the provisions of Section 17A of the Securities
and Exchange Act of 1934, as amended. DTC holds securities that its
participants deposit with DTC. DTC also facilitates the settlement among
participants of securities transactions, such as transfers and pledges, in
deposited securities through electronic computerized book-entry changes in
participants' accounts, thereby eliminating the need for physical movement of
securities certificates. Direct participants of DTC include securities brokers
and dealers, banks, trust companies, clearing corporations and other
organizations. DTC is owned by a number of its direct participants and by the
NYSE, the AMEX and the National Association of Securities Dealers, Inc. Access
to the DTC's system is also available to others such as securities brokers and
dealers, banks and trust companies that clear through or maintain a custodial
relationship with a direct participant, either directly or indirectly. The
rules applicable to DTC and its participants are on file with the SEC.

     Purchases of MITTS Securities under DTC's system must be made by or
through direct participants, which will receive a credit for the MITTS
Securities on DTC's records. The ownership interest of each beneficial owner
is in turn to be recorded on the records of direct and indirect participants.
Beneficial owners will not receive written confirmation from DTC of their
purchase, but beneficial owners are expected to receive written confirmations
providing details of the transaction, as well as periodic statements of their
holdings, from the direct participants or indirect participants through which
the beneficial owner entered into the transaction. Transfers of ownership
interests in the MITTS Securities are to be accomplished by entries made on
the books of participants acting on behalf of beneficial owners.

     To facilitate subsequent transfers, all MITTS Securities deposited with
DTC are registered in the name of DTC's partnership nominee, Cede & Co. The
deposit of MITTS Securities with DTC and their registration in the name of
Cede & Co. effect no change in beneficial ownership. DTC has no knowledge of
the actual beneficial owners of the MITTS Securities; DTC's records reflect
only the identity of the direct participants to whose accounts the MITTS
Securities are credited, which may or may not be the beneficial owners. The
participants will remain responsible for keeping account of their holdings on
behalf of their customers.

     Conveyance of notices and other communications by DTC to direct
participants, by direct participants to indirect participants, and by direct
and indirect participants to beneficial owners will be governed by
arrangements among them, subject to any statutory or regulatory requirements
as may be in effect from time to time.

     Neither DTC nor Cede & Co. will consent or vote with respect to the MITTS
Securities. Under its usual procedures, DTC mails an omnibus proxy to ML&Co.
as soon as possible after the applicable record date. The omnibus proxy
assigns Cede & Co.'s consenting or voting rights to those direct participants
identified in a listing attached to the omnibus proxy to whose accounts the
MITTS Securities are credited on the record date identified in a listing
attached to the omnibus proxy.

     Principal, premium, if any, and/or interest, if any, payments on the
MITTS Securities will be made in immediately available funds to DTC. DTC's
practice is to credit direct participants' accounts on the applicable payment
date in accordance with their respective holdings shown on the depositary's
records unless DTC has reason to believe that it will not receive payment on
that date. Payments by participants to beneficial owners will be governed by
standing instructions and customary practices, as is the case with securities
held for the accounts of customers in bearer form or registered in "street
name", and will be the responsibility of the participant and not of DTC, the
trustee or ML&Co., subject to any statutory or regulatory requirements as may
be in effect from time to time. Payment of principal, premium, if any, and/or
interest, if any, to DTC is the responsibility of ML&Co. or the trustee,
disbursement of payments to direct participants is the responsibility of DTC,
and disbursement of payments to the beneficial owners is the responsibility of
direct and indirect participants.

     Exchange for Certificated Securities

     If:

     o    the depositary is at any time unwilling or unable to continue as
          depositary and a successor depositary is not appointed by ML&Co.
          within 60 days,

     o    ML&Co. executes and delivers to the trustee a company order to the
          effect that the global securities shall be exchangeable, or

     o    an Event of Default under the 1983 Indenture has occurred and is
          continuing with respect to the MITTS Securities ,

the global securities will be exchangeable for MITTS Securities in definitive
form of like tenor and of an equal aggregate principal amount, in
denominations of $10 and integral multiples of $10. The definitive MITTS
Securities will be registered in the name or names as the depositary shall
instruct the trustee. It is expected that instructions may be based upon
directions received by the depositary from participants with respect to
ownership of beneficial interests in the global securities.

     In addition, ML&Co. may decide to discontinue use of the system of
book-entry transfers through the depositary. In that event, MITTS Securities
in definitive form will be printed and delivered.

     The information in this section concerning DTC and DTC's system has been
obtained from sources that ML&Co. believes to be reliable, but ML&Co. takes no
responsibility for its accuracy .
    


Same-Day Settlement and Payment

   
     ML&Co. will make all payments of principal and the Supplemental
Redemption Amount, if any, in immediately available funds so long as the MITTS
Securities are maintained in book-entry form.
    


                                   THE INDEX

   
     All disclosures contained in this prospectus regarding the Index,
including its make-up, method of calculation and changes in its components,
are derived from publicly available information prepared by S&P as of March
22, 1999. ML&Co. and MLPF&S do not assume any responsibility for the accuracy
or completeness of this information.

     The Index is published by S&P, and is intended to provide an indication
of the pattern of common stock price movement. The calculation of the value of
the Index, discussed below in further detail, is based on the relative value
of the aggregate Market Value of the common stocks of 500 companies as of a
particular time compared to the aggregate average Market Value of the common
stocks of 500 similar companies during the base period of the years 1941
through 1943. As of March 22, 1999 the 500 companies included in the Index
represented approximately 78% of the aggregate Market Value of common stocks
traded on the NYSE; however, these 500 companies are not the 500 largest
companies listed on the NYSE and not all of these 500 companies are listed on
the exchange. As of March 22, 1999, the aggregate Market Value of the 500
companies included in the Index represented approximately 79% of the aggregate
Market Value of United States domestic, public companies. S&P chooses
companies for inclusion in the Index with the aim of achieving a distribution
by broad industry groupings that approximates the distribution of these
groupings in the common stock population of the NYSE, which S&P uses as an
assumed model for the composition of the total market. Relevant criteria
employed by S&P include:
    

     o    the viability of the particular company,

     o    the extent to which that company represents the industry group to
          which it is assigned,

   
     o    the extent to which the market price of that company's common stock
          is generally responsive to changes in the affairs of the respective
          industry, and
    

     o    the Market Value and trading activity of the common stock of that
          company.

   
     Four main groups of companies comprise the Index, with the number of
companies currently included in each group indicated in parentheses:
Industrials (380), Utilities (39), Transportation (10) and Financial (71). S&P
may from time to time, in its sole discretion, add companies to, or delete
companies from, the Index to achieve the objectives stated above.

     The Index does not reflect the payment of dividends on the stocks
underlying it . Because of this and the application of the Adjustment Factor,
the return based on the MITTS Securities will not be the same return you would
receive if you were to purchase the underlying stocks and hold them for a
period equal to the maturity of the MITTS Securities.
    


Computation of the Index

     S&P currently computes the Index as of a particular time as follows:

   
          (a) the product of the market price per share and the number of then
     outstanding shares of each component stock is determined at a particular
     time (the "Market Value" of the stock);

          (b) the Market Value of all component stock as of that time are
     aggregated;
    

          (c) the mean average of the Market Values as of each week in the
     base period of the years 1941 through 1943 of the common stock of each
     company in a group of 500 substantially similar companies is determined;

   
          (d) the mean average Market Values of all these common stocks over
     the base period are aggregated (the aggregate amount being referred to as
     the "Base Value");

          (e) the current aggregate Market Value of all component stocks is
     divided by the Base Value; and

          (f) the resulting quotient, expressed in decimals, is multiplied by
     ten.

     While S&P currently employs the above methodology to calculate the Index,
no assurance can be given that S&P will not modify or change this methodology
in a manner that may affect the Supplemental Redemption Amount, if any,
payable to beneficial owners of MITTS Securities upon maturity or otherwise.

     S&P adjusts the foregoing formula to negate the effects of changes in the
Market Value of component stocks that are determined by S&P to be arbitrary or
not due to true market fluctuations. Changes may result from causes such as
    

     o    the issuance of stock dividends,

   
     o    the granting to shareholders of rights to purchase additional shares
          of stock,
    

     o    the purchase of shares by employees pursuant to employee benefit
          plans,

   
     o    consolidations and acquisitions,

     o    the granting to shareholders of rights to purchase other securities
          of ML&Co.,
    

     o    the substitution by S&P of particular component stocks in the Index,
          and

     o    other reasons.

   
In these cases, S&P first recalculates the aggregate Market Value of all
component stocks, after taking account of the new market price per share of
the particular component stock or the new number of outstanding shares thereof
or both, and then determines the New Base Value in accordance with the
following formula:
    

                                        New Market Value
                                        ----------------
             Old Base Value X           Old Market Value      = New Base Value

   
     The result is that the Base Value is adjusted in proportion to any change
in the aggregate Market Value of all component stocks resulting from the
causes referred to above to the extent necessary to negate the effects of
these causes upon the Index.
    


<PAGE>


   
Historical Data on the Index

     The following table sets forth the value of the Index at the end of each
month, in the period from January 1990 through February 1999. These historical
data on the Index are not necessarily indicative of the future performance of
the Index or what the value of the MITTS Securities may be. Any historical
upward or downward trend in the value of the Index during any period set forth
below is not any indication that the Index is more or less likely to increase
or decrease at any time during the term of the MITTS Securities.

<TABLE>
<CAPTION>


                  1990      1991      1992     1993      1994      1995      1996      1997     1998       1999
                  ----      ----      ----     ----      ----      ----      ----      ----     ----       ----

<S>              <C>       <C>       <C>      <C>       <C>       <C>       <C>       <C>     <C>        <C>

January.......   329.08    343.93    408.78   438.78    481.61    470.42    636.02    786.16   980.28    1,279.64
February......   331.89    367.07    412.70   443.38    467.14    487.39    640.43    790.82  1,049.34   1,238.33
March.........   339.94    375.22    403.69   451.67    445.77    500.71    645.50    757.12  1,101.75
April.........   330.80    375.34    414.95   440.19    450.91    514.71    654.17    801.34  1,111.75
May...........   361.23    389.83    415.35   450.19    456.51    533.40    669.12    848.28  1,090.82
June..........   358.02    371.16    408.14   450.53    444.27    544.75    670.63    885.14  1,133.84
July..........   356.15    387.81    424.22   448.13    458.26    562.06    639.95    954.29  1,120.67
August........   322.56    395.43    414.03   463.56    475.50    561.88    651.99    899.47   957.28
September.....   306.05    387.86    417.80   458.93    462.71    584.41    687.31    947.28  1,017.01
October.......   304.00    392.45    418.68   467.83    472.35    581.50    705.27    914.62  1,098.67
November......   322.22    375.22    431.35   461.79    453.69    605.37    757.02    955.40  1,163.63
December......   330.22    417.09    435.71   466.45    459.27    615.93    740.74    970.43  1,229.23

</TABLE>

License Agreement

     Standard & Poor's ("S&P") does not guarantee the accuracy and/or the
completeness of the Index or any data included in the Index. S&P makes no
warranty, express or implied, as to results to be obtained by ML&CO., MLPF&S,
holders of the MITTS Securities, or any other person or entity from the use of
the S&P index or any data included in the Index in connection with the rights
licensed under the license agreement described herein or for any other use.
S&P makes no express or implied warranties, and hereby expressly disclaims all
warranties of merchantability or fitness for a particular purpose with respect
to the S&P Index or any data included in the Index. Without limiting any of
the above information, in no event shall S&P have any liability for any
special, punitive, indirect or consequential damage, including lost profits,
even if notified of the possibility of these damages.

     S&P and Merrill Lynch Capital Services, Inc. have entered into a
non-exclusive license agreement providing for the license to Merrill Lynch
Capital Services, Inc., in exchange for a fee, of the right to use indices
owned and published by S&P in connection with some securities, including the
MITTS Securities, and ML&Co. is an authorized sublicensee thereof.

     The license agreement between S&P and Merrill Lynch Capital Services,
Inc. provides that the following language must be stated in this prospectus:

     "The MITTS Securities are not sponsored, endorsed, sold or promoted by
S&P. S&P makes no representation or warranty, express or implied, to the
holders of the MITTS Securities or any member of the public regarding the
advisability of investing in securities generally or in the MITTS Securities
particularly or the ability of the Index to track general stock market
performance. S&P's only relationship to Merrill Lynch Capital Services, Inc.
and ML&Co. (other than transactions entered into in the ordinary course of
business) is the licensing of certain servicemarks and trade names of S&P and
of the Index which is determined, composed and calculated by S&P without
regard to ML&Co. or the MITTS Securities. S&P has no obligation to take the
needs of ML&Co. or the holders of the MITTS Securities into consideration in
determining, composing or calculating the Index. S&P is not responsible for
and has not participated in the determination of the timing of the sale of the
MITTS Securities, prices at which the MITTS Securities are to initially be
sold, or quantities of the MITTS Securities to be issued or in the
determination or calculation of the equation by which the MITTS Securities are
to be converted into cash. S&P has no obligation or liability in connection
with the administration, marketing or trading of the MITTS Securities."

     All disclosures contained in this prospectus supplement regarding the
Index, including its make-up, method of calculation and changes in its
components, are derived from publicly available information prepared by S&P.
ML&Co. and MLPF&S do not assume any responsibility for the accuracy or
completeness of this information.


                                  OTHER TERMS

     ML&Co. issued the MITTS Securities as a series of senior debt securities
under the 1983 Indenture, dated as of April 1, 1983, as amended and restated,
between ML&Co. and The Chase Manhattan Bank, as trustee. A copy of the 1983
Indenture is filed as an exhibit to the registration statement relating to the
MITTS Securities of which this prospectus is a part. The following summaries
of the material provisions of the 1983 Indenture are not complete and are
subject to, and qualified in their entirety by reference to, all provisions of
the 1983 Indenture, including the definitions of terms in the 1983 Indenture .

     ML&Co. may issue series of senior debt securities from time to time under
the 1983 Indenture, without limitation as to aggregate principal amount, in
one or more series and upon terms as ML&Co. may establish under the provisions
of the 1983 Indenture.

     The 1983 Indenture and the MITTS Securities are governed by and construed
in accordance with the laws of the State of New York.

     ML&Co. may issue senior debt securities with terms different from those
of senior debt securities previously issued, and issue additional senior debt
securities of a previously issued series of senior debt securities.

     The senior debt securities are unsecured and rank equally with all other
unsecured and unsubordinated indebtedness of ML&Co. However, because ML&Co. is
a holding company, the rights of ML&Co. and its creditors, including the
holders of senior debt securities, to participate in any distribution of the
assets of any subsidiary upon its liquidation or reorganization or otherwise
are necessarily subject to the prior claims of creditors of the subsidiary,
except to the extent that a bankruptcy court may recognize claims of ML&Co.
itself as a creditor of the subsidiary . In addition, dividends, loans and
advances from certain subsidiaries, including MLPF&S, to ML&Co. are restricted
by net capital requirements under the Exchange Act, and under rules of
exchanges and other regulatory bodies.


Limitations Upon Liens

     ML&Co. may not, and may not permit any majority-owned subsidiary to,
create, assume, incur or permit to exist any indebtedness for borrowed money
secured by a pledge, lien or other encumbrance, other than those liens
specifically permitted by the 1983 Indenture, on the Voting Stock owned
directly or indirectly by ML&Co. of any majority-owned subsidiary, other than
a majority-owned subsidiary which, at the time of the incurrence of the
secured indebtedness, has a net worth of less than $3,000,000, unless the
outstanding senior debt securities are secured equally and ratably with the
secured indebtedness.

     "Voting Stock" is defined in the 1983 Indenture as the stock of the class
or classes having general voting power under ordinary circumstances to elect
at least a majority of the board of directors, managers or trustees of a
corporation provided that, for the purposes of the 1983 Indenture, stock that
carries only the right to vote conditionally on the occurrence of an event is
not considered voting stock whether or not the event has happened.


Limitation  on Disposition of Voting Stock of, and Merger and Sale of Assets by,
MLPF&S

     ML&Co. may not sell, transfer or otherwise dispose of any Voting Stock of
MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of its
Voting Stock, unless, after giving effect to any such transaction, MLPF&S
remains a Controlled Subsidiary.

     "Controlled Subsidiary" is defined in the 1983 Indenture to mean a
corporation more than 80% of the outstanding shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

     In addition, ML&Co. may not permit MLPF&S to:

     o    merge or consolidate, unless the surviving company is a Controlled
          Subsidiary, or
    

     o    convey or transfer its properties and assets substantially as an
          entirety, except to one or more Controlled Subsidiaries.


Merger and Consolidation

   
     ML&Co. may consolidate or merge with or into any other corporation and
ML&Co. may sell, lease or convey all or substantially all of its assets to any
corporation, provided that:

     o    the resulting corporation, if other than ML&Co., is a corporation
          organized and existing under the laws of the United States of
          America or any U.S. state and assumes all of ML&Co.'s obligations
          to:

          o    pay any amounts due and payable or deliverable with respect to
               all the senior debt securities; and

          o    perform and observe all of ML&Co.'s obligations under the 1983
               Indenture, and

     o    ML&Co. or the successor corporation, as the case may be, is not,
          immediately after any consolidation or merger, in default under the
          1983 Indenture.
    


Modification and Waiver

   
     ML&Co. and the trustee may modify and amend the 1983 Indenture with the
consent of holders of at least 66 2/3% in principal amount of each outstanding
series of senior debt securities affected. However, without the consent of
each holder of any outstanding senior debt security affected, no amendment or
modification to the 1983 Indenture may:

     o    change the stated maturity date of the principal of, or any
          installment of interest or Additional Amounts payable on, any senior
          debt security or any premium payable on redemption , or change the
          redemption price;

     o    reduce the principal amount of, or the interest or Additional
          Amounts payable on, any senior debt security or reduce the amount of
          principal which could be declared due and payable before the stated
          maturity date;

     o    change the place or currency of any payment of principal or any
          premium, interest or Additional Amounts payable on any senior debt
          security;

     o    impair the right to institute suit for the enforcement of any
          payment on or with respect to any senior debt security;

     o    reduce the percentage in principal amount of the outstanding senior
          debt securities of any series, the consent of whose holders is
          required to modify or amend the 1983 Indenture; or

     o    modify the foregoing requirements or reduce the percentage of
          outstanding senior debt securities necessary to waive any past
          default to less than a majority.

     No modification or amendment of ML&Co.'s Subordinated Indenture or any
Subsequent Indenture for subordinated debt securities may adversely affect the
rights of any holder of ML&Co.'s senior indebtedness without the consent of
each holder affected. The holders of at least a majority in principal amount
of outstanding senior debt securities of any series may, with respect to that
series, waive past defaults under the 1983 Indenture and waive compliance by
ML&Co. with provisions in the 1983 Indenture, except as described under
"--Events of Default".


Events of Default

     Each of the following will be Events of Default with respect to senior
debt securities of any series :

     o    default in the payment of any interest or Additional Amounts payable
          when due and continuing for 30 days;

     o    default in the payment of any principal or premium when due;

     o    default in the deposit of any sinking fund payment, when due;

     o    default in the performance of any other obligation of ML&Co.
          contained in the 1983 Indenture for the benefit of that series or in
          the senior debt securities of that series, continuing for 60 days
          after written notice as provided in the 1983 Indenture;

     o    specified events in bankruptcy, insolvency or reorganization of
          ML&Co.; and

     o    any other Event of Default provided with respect to senior debt
          securities of that series which are not inconsistent with the 1983
          Indenture.

     If an Event of Default occurs and is continuing for any series of senior
debt securities, other than as a result of the bankruptcy, insolvency or
reorganization of ML&Co., the trustee or the holders of at least 25% in
principal amount of the outstanding senior debt securities of that series may
declare all amounts, or any lesser amount provided for in the senior debt
securities, due and payable or deliverable immediately. At any time after a
declaration of acceleration has been made with respect to senior debt
securities of any series but before the trustee has obtained a judgment or
decree for payment of money , the holders of a majority in principal amount of
the outstanding senior debt securities of that series may rescind any
declaration of acceleration and its consequences, if all payments due, other
than those due as a result of acceleration, have been made and all Events of
Default have been remedied or waived.

     The holders of a majority in principal amount or aggregate issue price of
the outstanding senior debt securities of that series may waive any Event of
Default with respect to that series, except a default:

     o    in the payment of any amounts due and payable or deliverable under
          the debt securities of that series; or

     o    in respect of an obligation or provision of the 1983 Indenture which
          cannot be modified under the terms of that Indenture without the
          consent of each holder of each outstanding security of each series
          of senior debt securities affected.

     The holders of a majority in principal amount of the outstanding senior
debt securities of a series may direct the time, method and place of
conducting any proceeding for any remedy available to the trustee or
exercising any trust or power conferred on the trustee with respect to those
senior debt securities, provided that any direction shall not be in conflict
with any rule of law or the 1983 Indenture. Before proceeding to exercise any
right or power under the 1983 Indenture at the direction of the holders, the
trustee shall be entitled to receive from the holders reasonable security or
indemnification against the costs, expenses and liabilities which might be
incurred by it in complying with any direction.

     The MITTS Securities and other series of senior debt securities issued
under the 1983 Indenture do not have the benefit of any cross-default
provisions with other indebtedness of ML&Co.

     ML&Co. is required to furnish to the trustee annually a statement as to
the fulfillment by ML&Co. of all of its obligations under the 1983 Indenture.
    


<PAGE>


   
                          PROJECTED PAYMENT SCHEDULE

     Solely for purposes of applying the Treasury Department Final Regulations
(the "Final Regulations") concerning the United States Federal income tax
treatment of contingent payment debt instruments to the MITTS Securities,
ML&Co. has determined that the projected payment schedule for the MITTS
Securities will consist of payment on the maturity date of the principal
amount and a projected Supplemental Redemption Amount equal to $5.0390 per
unit. This represents an estimated yield on the MITTS Securities equal to
5.90% per annum (compounded semiannually).
    

     The projected payment schedule (including both the projected Supplemental
Redemption Amount and the estimated yield on the MITTS Securities) has been
determined solely for United States Federal income tax purposes (i.e., for
purposes of applying the Final Regulations to the MITTS Securities), and is
neither a prediction nor a guarantee of what the actual Supplemental
Redemption Amount will be, or that the actual Supplemental Redemption Amount
will even exceed zero.

   
     The following table sets forth the amount of interest that will be deemed
to have accrued with respect to each unit of the MITTS Securities during each
accrual period over a term of seven years and one day for the MITTS Securities
based upon the projected payment schedule for the MITTS Securities (including
both the projected Supplemental Redemption Amount and the estimated yield
equal to 5.90% per annum (compounded semiannually)) as determined by ML&Co.
for purposes of application of the Final Regulations to the MITTS Securities:
    





<PAGE>


<TABLE>
<CAPTION>


                                                                                                   Total Interest
                                                                                                      Deemed to
                                                                                                    Have Accrued
                                                                                                    on the MITTS
                                                                        Interest Deemed to           Securities
                                                                          Accrue During             as of End of
                                                                          Accrual Period           Accrual Period
   
                          Accrual Period                                   (per  unit)             (per  unit)
                          --------------                                   -----------             -----------

<S>                                                                     <C>                        <C>

    
June 26, 1998 through January 1, 1999....................                     $0.3057                   $0.3057
January 2, 1999 through July 1, 1999.....................                     $0.3040                   $0.6097
July 2, 1999 through January 1, 2000.....................                     $0.3130                   $0.9227
January 2, 2000 through July 1, 2000.....................                     $0.3222                   $1.2449
July 2, 2000 through January 1, 2001.....................                     $0.3317                   $1.5766
January 2, 2001 through July 1, 2001.....................                     $0.3415                   $1.9181
July 2, 2001 through January 1, 2002.....................                     $0.3516                   $2.2697
January 2, 2002 through July 1, 2002.....................                     $0.3620                   $2.6317
July 2, 2002 through January 1, 2003.....................                     $0.3726                   $3.0043
January 2, 2003 through July 1, 2003.....................                     $0.3836                   $3.3879
July 2, 2003 through January 1, 2004.....................                     $0.3950                   $3.7829
January 2, 2004 through July 1, 2004.....................                     $0.4066                   $4.1895
July 2, 2004 through January 1, 2005.....................                     $0.4186                   $4.6081
January 2, 2005 through July 1, 2005.....................                     $0.4309                   $5.0390

</TABLE>

         ------------------
   
Projected Supplemental Redemption Amount = $5.0390 per unit.

     All prospective investors in the MITTS Securities should consult their
own tax advisors concerning the application of the Final Regulations to their
investment in the MITTS Securities. Investors in the MITTS Securities may also
obtain the projected payment schedule, as determined by ML&Co. for purposes of
the application of the Final Regulations to the MITTS Securities, by
submitting a written request for information to Merrill Lynch & Co., Inc.,
Attn: Darryl W. Colletti, Corporate Secretary's Office, 100 Church Street,
12th Floor, New York, New York 10080-6512.
    


<PAGE>


   
                      WHERE YOU CAN FIND MORE INFORMATION

     We file reports, proxy statements and other information with the SEC. Our
SEC filings are also available over the Internet at the SEC's web site at
http://www.sec.gov. You may also read and copy any document we file by
visiting the SEC's public reference rooms in Washington, D.C., New York, New
York, and Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further
information about the public reference rooms. You may also inspect our SEC
reports and other information at the New York Stock Exchange, Inc., 20 Broad
Street, New York, New York 10005.

     We have filed a registration statement on Form S-3 with the SEC covering
the MITTS Securities and other securities. For further information on ML&Co.
and the MITTS Securities, you should refer to our registration statement and
its exhibits. This prospectus summarizes material provisions of contracts and
other documents that we refer you to. Because the prospectus may not contain
all the information that you may find important, you should review the full
text of these documents. We have included copies of these documents as
exhibits to our registration statement of which this prospectus is a part.


               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

     The SEC allows us to incorporate by reference the information we file
with them, which means:

     o    incorporated documents are considered part of the prospectus;

     o    we can disclose important information to you by referring you to
          those documents; and

     o    information that we file with the SEC will automatically update and
          supersede this incorporated information.

     We incorporate by reference the documents listed below which were filed
with the SEC under the Exchange Act:

     o    annual report on Form 10-K for the year ended December 25, 1998; and

     o    current reports on Form 8-K dated December 28, 1998, January 19,
          1999, February 17, 1999, February 18, 1999, February 22, 1999,
          February 23, 1999 and March 26, 1999.

     We also incorporate by reference each of the following documents that we
will file with the SEC after the date of this prospectus until this offering
is completed or after the date of this initial registration statement and
before the effectiveness of the registration statement:

     o    reports filed under Sections 13(a) and (c) of the Exchange Act;

     o    definitive proxy or information statements filed under Section 14 of
          the Exchange Act in connection with any subsequent stockholders'
          meeting; and

     o    any reports filed under Section 15(d) of the Exchange Act.

     You should rely only on information contained or incorporated by
reference in this prospectus. We have not, and MLPF&S has not, authorized any
other person to provide you with different information. If anyone provides you
with different or inconsistent information, you should not rely on it. We are
not, and MLPF&S is not, making an offer to sell these securities in any
jurisdiction where the offer or sale is not permitted.

     You should assume that the information appearing in this prospectus is
accurate as of the date of this prospectus only. Our business, financial
condition and results of operations may have changed since that date.

     You may request a copy of any filings referred to above (excluding
exhibits), at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan, Jr., Corporate Secretary's Office, Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.


                             PLAN OF DISTRIBUTION

     This prospectus has been prepared in connection with secondary sales of
the MITTS Securities and is to be used by MLPF&S when making offers and sales
related to market-making transactions in the MITTS Securities.

     MLPF&S may act as principal or agent in these market-making transactions.

     The MITTS Securities may be offered on the AMEX or off the exchange in
negotiated transactions or otherwise.

     The distribution of the MITTS Securities will conform to the requirements
set forth in the applicable sections of Rule 2720 of the Conduct Rules of the
NASD.
    


                                    EXPERTS

   
         The  consolidated   financial  statements  and  the  related  financial
statement schedule  incorporated in this prospectus by reference from the Annual
Report on Form 10-K of Merrill  Lynch & Co.,  Inc.  and  subsidiaries  have been
audited  by  Deloitte & Touche  LLP,  independent  auditors,  as stated in their
reports  (which  express  an  unqualified   opinion  and  which  report  on  the
consolidated  financial  statements  includes an  explanatory  paragraph for the
change in  accounting  method  for  certain  internal-use  software  development
costs),   which  are  incorporated  herein  by  reference,   and  have  been  so
incorporated  in  reliance  upon the  reports  of such  firm  given  upon  their
authority as experts in accounting and auditing.
    


<PAGE>
   
     The information in this prospectus is not complete and may be changed. We
may not sell these securities until the registration statement filed with the
Securities and Exchange Commission is effective. This prospectus is not an
offer to sell these securities and it is not soliciting an offer to buy these
securities in any state where the offer or sale is not permitted.
    


                             Subject to Completion
   
                  Preliminary Prospectus dated March 29, 1999
    


P R O S P E C T U S

   
                           Merrill Lynch & Co., Inc.
        Russell 2000(R) Index* Market Index Target-Term Securities due
                              September 30, 2004
                            "MITTS(R)1 Securities"
                         $10 principal amount per unit


     This prospectus is to be used by Merrill Lynch & Co., Merrill Lynch,
Pierce, Fenner & Smith Incorporated, our wholly-owned subsidiary, when making
offers and sales related to market-making transactions in the MITTS
Securities.


<TABLE>
<CAPTION>

<S>                                                    <C>

 The MITTS Securities:                                 Payment at Maturity:
o  100% principal protection at maturity               o  On the maturity date, for each unit of the MITTS Securities you own, we
o  No payments before the maturity date                   will pay you an amount equal to the sum of the  principal amount of each
o  Senior unsecured debt securities of Merrill            unit and an additional amount based on the percentage increase, if any,
   Lynch & Co. Inc.                                       in the value of the Russell 2000 Index above a benchmark value of 494.36,
o  Linked to the value of the Russell 2000 Index          as described in this prospectus
o  The MITTS Securities are listed on the              o  You will receive no less than the principal amount of your MITTS
   American Stock Exchange under the symbol               Securities
   "RUM"

</TABLE>


    


   
               Investing in the MITTS Securities involves risks.
                    See "Risk Factors" beginning on page 3.
    


     Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if
this prospectus is truthful or complete. Any representation to the contrary is
a criminal offense.

   
     The sale price of the MITTS Securities will be the prevailing market
price at the time of sale.
    

                                 ------------
                              Merrill Lynch & Co.
                                 ------------

   
                The date of this prospectus is      , 199 .
    

*    The use of, and reference to, the term "Russell 2000 Index" in this
     prospectus has been consented to by Frank Russell Company.

1    "MITTS" and "Market Index Target-Term Securities" are registered service
     marks owned by Merrill Lynch & Co., Inc.

<PAGE>

   
                               TABLE OF CONTENTS

                                                                          Page

RISK FACTORS.................................................................3
MERRILL LYNCH & CO., INC.....................................................7
RATIO OF EARNINGS TO FIXED CHARGES...........................................8
DESCRIPTION OF THE MITTS SECURITIES..........................................9
THE INDEX...................................................................16
OTHER TERMS.................................................................17
PROJECTED PAYMENT SCHEDULE..................................................20
WHERE YOU CAN FIND MORE INFORMATION.........................................22
INCORPORATION OF INFORMATION WE FILE WITH THE SEC...........................22
PLAN OF DISTRIBUTION........................................................23
EXPERTS.....................................................................23
    


<PAGE>


                                 RISK FACTORS

   
     Your investment in MITTS Securities will involve risks. You should
carefully consider the following discussion of risks before deciding whether
an investment in the MITTS Securities is suitable for you.

You may not earn a return on your investment.

     You should be aware that at maturity we will pay you no more than $10 for
each unit of the MITTS Securities you own if the average value of the index
over five trading days shortly before the maturity date the index value does
not exceed 449.42 by more than 10%. This will be true even if at some time
during the life of the MITTS Securities, the value of the Russell 2000 Index,
as adjusted, was higher than that amount, 494.36, but later falls below
494.36.
    

Your  yield  may be  lower  than the  yield on a  standard  debt  security  of
comparable maturity.

   
     The amount we pay you at maturity may be less than the return you could
earn on other investments. Your yield may be less than the yield you would
earn if you bought a standard senior non-callable debt security of Merrill
Lynch & Co., Inc. with the same maturity date. Your investment may not reflect
the full opportunity cost to you when you take into account inflation and
other factors that affect the time value of money.

Your return  will not reflect the return of owning the stocks  included in the
index.

     Your return will not reflect the return you would realize if you actually
owned the stocks underlying the index and received the dividends paid on those
stocks. This is because the value of the index is calculated by reference to
the prices of the common stocks included in the index without taking into
consideration the value of dividends paid on those stocks.
    

Your return will not reflect the payment of dividends.

   
     The index is calculated with reference to the prices of the common stocks
comprising the index without taking into consideration the value of dividends
paid on those stocks. Therefore, the return you earn on your MITTS Securities,
if any, will not be the same as the return that you would earn if you actually
owned each of the common stocks underlying the index and received the
dividends paid on those stocks.

 Investments in small capitalization stocks involve risks.

     The underlying stocks that constitute the index have been issued by
corporations domiciled in the U.S. and its territories and traded on the NYSE,
on the AMEX or in the over-the-counter market. If a successor index is
substituted for the index as described below, any successor index would also
be based upon stocks issued by corporations domiciled in the U.S. and its
territories and traded on the NYSE, on the AMEX or in the over-the-counter
market. You should be aware that investments in securities indexed to the
value of small capitalization companies involve risks. In general, the stocks
comprising the index have smaller market capitalizations, less trading
liquidity and greater price volatility than stocks in other larger
capitalization indexes which are designed to measure the broad movement of the
U.S. stock markets. You should understand that these factors could adversely
affect the value of the index and your MITTS Securities.

There may be an  uncertain  trading  market  for the MITTS  Securities  in the
future.

     Although the MITTS Securities are listed on the NYSE under the symbol
"RUM," you cannot assume that a trading market will continue to exist for the
MITTS Securities. If a trading market in the MITTS Securities continues to
exist, you cannot assume that there will be liquidity in the trading market.
The continued existence of a trading market for the MITTS Securities will
depend on our financial performance and other factors such as the
appreciation, if any, of the value of the index.

     If the trading market for the MITTS Securities is limited and you do not
wish to hold your investment until maturity, there may be a limited number of
buyers for your MITTS Securities. This may affect the price you receive if you
sell before maturity.

There are many factors affecting trading value of the MITTS Securities.

     We believe that the value of the index and by a number of other factors
will affect the trading value of the MITTS Securities. Some of these factors
interrelate in complex ways; as a result, the effect of any one factor may
offset or magnify the effect of another factor. The following paragraphs
describe the expected impact on the market value of the MITTS Securities given
a change in a specific factor, assuming all other conditions remain constant.

     o    The value of the index. We expect that the market value of the MITTS
          Securities will depend substantially on the value of the index
          relative to the benchmark index value. If you choose to sell your
          MITTS Securities when the value of the index exceeds the benchmark
          index value, you may receive substantially less than the amount that
          would be payable at maturity based on that index value because of
          the expectation that the index will continue to fluctuate until
          shortly before the maturity date when the average value of the index
          is determined. If you choose to sell your MITTS Securities when the
          value of the index is below the benchmark index value, you may
          receive less than the $10 principal amount per unit of MITTS
          Securities. In general, rising U.S. dividend rates, i.e., dividends
          per share, may increase the value of the index, while falling U.S.
          dividend rates may decrease the value of the index. Political,
          economic and other developments that affect the stocks underlying
          the index may also affect the value of the index and the value of
          the MITTS Securities.

     o    Interest rates. Because we will pay, at a minimum, the principal
          amount per unit of the MITTS Securities at maturity, we expect that
          changes in interest rates will affect the trading value of the MITTS
          Securities. In general, if U.S. interest rates increase, we expect
          that the trading value of the MITTS Securities will decrease, and
          conversely, if U.S. interest rates decrease, we expect the trading
          value of the MITTS Securities will increase. Interest rates may also
          affect the U.S. economy and, in turn, the value of the index. Rising
          interest rates may lower the value of the index and, thus, the MITTS
          Securities. Falling interest rates may increase the value of the
          index and, thus, may increase the value of the MITTS Securities.

     o    Volatility of the index. Volatility is the term used to describe the
          size and frequency of market fluctuations. Generally if the
          volatility of the index increases, we expect that the trading value
          of the MITTS Securities will increase. If the volatility of the
          index decreases, we expect that the trading value of the MITTS
          Securities will decrease.

     o    Time remaining to maturity. The MITTS Securities may trade at a
          value above that which would be expected based on the level of
          interest rates and the index. This difference will reflect a "time
          premium" due to expectations concerning the value of the index
          during the period prior to maturity of the MITTS Securities.
          However, as the time remaining to maturity of the MITTS Securities
          decreases, we expect that this time premium will decrease, lowering
          the trading value of the MITTS Securities.

     o    Dividend yields. If dividend yields on the stocks comprising the
          index increase, we expect that the value of the MITTS Securities
          will decrease. Conversely, if dividend yields on the stock
          comprising the index decrease, we expect that the value of the MITTS
          Securities will increase.

     o    Changes in our credit ratings. Our credit ratings are an assessment
          of our ability to pay our obligations. Consequently, real or
          anticipated changes in our credit ratings may affect the trading
          value of the MITTS Securities. However, because your return on your
          MITTS Securities is dependent upon factors in addition to our
          ability to pay our obligations under the MITTS Securities, such as
          the percentage increase in the value of the index at maturity, an
          improvement in our credit ratings will not reduce investment risks
          related to the MITTS Securities.

     We want you to understand that the impact of one of the factors specified
above, such as an increase in interest rates, may offset some or all of any
increase in the trading value of the MITTS Securities attributable to another
factor, such as an increase in the value of the index.

     In general, assuming all relevant factors are held constant, we expect
that the effect on the trading value of the MITTS Securities of a given change
in most of the factors listed above will be less if it occurs later in the
term of the MITTS Securities than if it occurs earlier in the term of the
MITTS Securities except that we expect that the effect on the trading value of
the MITTS Securities of a given increase in the value of the index will be
greater if it occurs later in the term of the MITTS Securities than if it
occurs earlier in the term of the MITTS Securities.

Amounts payable on the MITTS Securities may be limited by state law.

     New York State laws govern the indenture, under which the MITTS
Securities are issued. New York has usury laws that limit the amount of
interest that can be charged and paid on loans, which includes debt securities
like the MITTS Securities. Under present New York law, the maximum rate of
interest is 25% per annum on a simple interest basis. This limit may not apply
to debt securities in which $2,500,000 or more has been invested.
    

     While we believe that New York law would be given effect by a state or
Federal court sitting outside of New York, many other states also have laws
that regulate the amount of interest that may be charged to and paid by a
borrower. We will promise, for the benefit of the MITTS holders, to the extent
permitted by law, not to voluntarily claim the benefits of any laws concerning
usurious rates of interest.

   
Purchases and sales by  us and our affiliates may affect your return.

     We and our affiliates may from time to time buy or sell the stocks
underlying the index for their own accounts for business reasons or in
connection with hedging our obligations under the MITTS Securities. These
transactions could affect the price of these stocks and the value of the index
in a manner that would be adverse to your investment in the MITTS Securities.

Potential conflicts of interest.

     Our subsidiary, Merrill Lynch, Pierce, Fenner & Smith Incorporated or
MLPF&S, is our agent for the purposes of calculating the value of the index
and the amount payable to you at maturity. In some circumstances, MLPF&S's
role as our subsidiary and its responsibilities as calculation agent for the
MITTS Securities could give rise to conflicts of interests. These conflicts
could occur, for instance, in connection with its determination as to whether
the value of the index can be calculated on a particular trading day, or in
connection with judgments that it would be required to make in the event of a
discontinuance of the index. See "Description of the MITTS
Securities--Adjustments to the index; Market Disruption Events" and
"--Discontinuance of the index" in this prospectus. MLPF&S is required to
carry out its duties as calculation agent in good faith and using its
reasonable judgment. However, you should be aware that because we control
MLPF&S, potential conflicts of interest could arise.

     We have entered into an arrangement with one of our a subsidiaries to
hedge the market risks associated with our obligation to pay amounts due at
maturity on the MITTS Securities. This subsidiary expects to make a profit in
connection with this arrangement. We did not seek competitive bids for this
arrangement from unaffiliated parties.
    

Other Considerations.

   
     You should reach an investment decision with regard to the MITTS
Securities only after carefully considering the suitability of the MITTS
Securities in light of your particular circumstances.

     You should also consider the tax consequences of investing in the
Securities and should consult with your tax adviser.
    


<PAGE>


   
                           MERRILL LYNCH & CO., INC.

     We are a holding company that, through our U.S. and non-U.S. subsidiaries
and affiliates such as Merrill Lynch, Pierce, Fenner & Smith Incorporated,
Merrill Lynch Government Securities Inc., Merrill Lynch Capital Services,
Inc., Merrill Lynch International, Merrill Lynch Capital Markets Bank Ltd.,
Merrill Lynch Asset Management L.P. and Merrill Lynch Mercury Asset
Management, provides investment, financing, advisory, insurance, and related
products on a global basis, including:

     o    securities brokerage, trading and underwriting;

     o    investment banking, strategic services, including mergers and
          acquisitions and other corporate finance advisory activities;

     o    asset management and other investment advisory and recordkeeping
          services;

     o    trading and brokerage of swaps, options, forwards, futures and other
          derivatives;

     o    securities clearance services;

     o    equity, debt and economic research;

     o    banking, trust and lending services, including mortgage lending and
          related services; and

     o    insurance sales and underwriting services.

     We provide these products and services to a wide array of clients,
including individual investors, small businesses, corporations, governments,
governmental agencies and financial institutions.

     Our principal executive office is located at World Financial Center,
North Tower, 250 Vesey Street, New York, New York 10281; our telephone number
is (212) 449-1000.

     If you want to find more information about us, please see the sections
entitled "Where You Can Find More Information" and "Incorporation of
Information We File with the SEC" in this prospectus.

     In this prospectus, "ML&Co.", "we", "us" and "our" refer specifically to
Merrill Lynch & Co., Inc., the holding company. ML&Co. is the issuer of the
MITTS Securities described in this prospectus.
    


<PAGE>


   
                      RATIO OF EARNINGS TO FIXED CHARGES

     In 1998, we acquired the outstanding shares of Midland Walwyn, Inc., in a
transaction accounted for as a pooling-of-interests. The following information
for the fiscal years 1994 through 1997 has been restated as if the two
entities had always been combined.

     The following table sets forth our historical ratios of earnings to fixed
charges for the periods indicated:

                                             Year Ended Last Friday in December
                                        1994     1995     1996     1997     1998
                                        ----------------------------------------

Ratio of earnings to fixed charges(a)   1.2      1.2      1.2      1.2      1.1
- ----------
(a)  The effect of combining Midland Walwyn did not change the ratios reported
     for the fiscal years 1994 through 1997.

     For the purpose of calculating the ratio of earnings to fixed charges,
"earnings" consist of earnings from continuing operations before income taxes
and fixed charges, excluding capitalized interest and preferred security
dividend requirements. "Fixed charges" consist of interest costs, the interest
factor in rentals, amortization of debt issuance costs, preferred security
dividend requirements of subsidiaries, and capitalized interest.
    


<PAGE>


   
                      DESCRIPTION OF THE MITTS SECURITIES

     On September 29, 1997, ML&Co. issued an aggregate principle amount of
$167,500,000 or 16,750,000 units of the MITTS Securities.

     The MITTS Securities were issued as a series of senior debt securities
under the 1983 Indenture which is more fully described in this prospectus.

     The MITTS Securities will mature on September 30, 2004.

     While at maturity a beneficial owner of a MITTS Security will receive the
principal amount of each MITTS Security plus the Supplemental Redemption
Amount described below, if any, there will be no other payment of interest,
periodic or otherwise. See "- Payment at Maturity" below.

     The MITTS Securities are not subject to redemption by ML&Co. or at the
option of any beneficial owner before maturity. Upon the occurrence of an
Event of Default with respect to the MITTS Securities, beneficial owners of
the MITTS Securities may accelerate the maturity of the MITTS Securities, as
described under "- Events of Default and Acceleration" and "Other Terms -
Events of Default" in this Prospectus.

     The MITTS Securities were issued in denominations of whole units.
    

Payment at Maturity

   
     At the maturity date, a beneficial owner of a MITTS Security will be
entitled to receive the principal amount of each unit plus the Supplemental
Redemption Amount, if any, all as provided below. If the Supplemental
Redemption Amount is not greater than zero, a beneficial owner of a MITTS
Security will be entitled to receive only the principal amount of its MITTS
Securities.

     The "Supplemental Redemption Amount" for a MITTS Security will be
determined by the calculation agent and will equal:

 Principal  amount of  each MITTS Security        Ending Value - Starting Value
                                                  -----------------------------
                           ($10 per Unit)    X             Starting Value
                                                    

     provided, however, that in no event will the Supplemental Redemption
Amount be less than zero.

     The "Starting Value" equals 494.36 which was determined on the Pricing
Date by multiplying 449.82, the value of the index on the pricing date by
110%.

     The "Ending Value" will be determined by the calculation agent and will
equal the average, or arithmetic mean, of the closing values of the Index
determined on each of the first five Calculation Days during the Calculation
Period. If there are fewer than five Calculation Days, then the Ending Value
will equal the average or arithmetic mean of the closing values of the Index
on these Calculation Days, and if there is only one Calculation Day, then the
Ending Value will equal the closing value of the Index on that Calculation
Day. If no Calculation Days occur during the Calculation Period because of
Market Disruption Events, then the Ending Index Value will equal the closing
value of the Index determined on the last scheduled Index Business Day in the
Calculation Period, regardless of the occurrences of a Market Disruption Event
on that day.
    

     The "Calculation Period" means the period from and including the seventh
scheduled Index Business Day prior to the maturity date to and including the
second scheduled Index Business Day prior to the maturity date.

     "Calculation Day" means any Index Business Day during the Calculation
Period on which a Market Disruption Event has not occurred.

   
     An "Index Business Day" is a day on which the NYSE and the AMEX are open
for trading and the Index or any Successor Index, as defined on page 10 below,
is calculated and published.

     All determinations made by the calculation agent shall be at the sole
discretion of the calculation agent and, absent a determination by the
calculation agent of a manifest error, shall be conclusive for all purposes
and binding on ML&Co. and beneficial owners of the MITTS Securities.
    


<PAGE>


Hypothetical Returns

   
     The following table illustrates, for a range of hypothetical Ending
Values:

     o    the percentage change from the Starting Value to the Ending Value;

     o    the total amount payable per Unit of MITTS Securities;

     o    the total rate of return on the MITTS Securities;

     o    the pretax annualized rate of return on the MITTS Securities; and

     o    the pretax annualized rate of return of the stocks underlying the
          Index, which includes an assumed aggregate dividend yield of 1.15%
          per annum, as more fully described below.
    

<TABLE>
<CAPTION>

                                                                                 Pretax                             
                                           Total Amount                        Annualized                           
                                        Payable at Maturity  Total Rate of        Rate          Pretax Annualized
                     Percentage Change   per $10 Principal    Return on       of Return on      Rate of Return of
   
Hypothetical Ending  Over the Starting    Amount of MITTS     the MITTS        the MITTS      Stocks Underlying the
       Value              Value           Securities         Securities     Securities(1)         Index(1)(2)
- -------------------  -----------------  -----------------    -----------    ---------------   ---------------------
    

<S>                  <C>               <C>                  <C>            <C>               <C>

        179.77            -60.00%              $10.00            0.00%            0.00%             -11.69%
        224.71            -50.00%              $10.00            0.00%            0.00%              -8.61%
        269.65            -40.00%              $10.00            0.00%            0.00%              -6.08%
        314.59            -30.00%              $10.00            0.00%            0.00%              -3.92%
        359.54            -20.00%              $10.00            0.00%            0.00%              -2.03%
        404.48            -10.00%              $10.00            0.00%            0.00%              -0.36%
        449.42(3)           0.00%              $10.00            0.00%            0.00%               1.15%
        494.36             10.00%              $10.00            0.00%            0.00%               2.52%
        539.30             20.00%              $10.91            9.09%            1.25%               3.77%
        584.25             30.00%              $11.82           18.18%            2.40%               4.93%
        629.19             40.00%              $12.73           27.27%            3.48%               6.01%
        674.13             50.00%              $13.64           36.36%            4.48%               7.02%
        719.07             60.00%              $14.55           45.45%            5.43%               7.96%
        764.01             70.00%              $15.45           54.55%            6.32%               8.85%
        808.96             80.00%              $16.36           63.64%            7.16%               9.69%
        853.90             90.00%              $17.27           72.73%            7.96%              10.49%
        898.84            100.00%              $18.18           81.82%            8.73%              11.25%
        943.78            110.00%              $19.09           90.91%            9.45%              11.98%
        988.72            120.00%              $20.00          100.00%           10.15%              12.67%
      1,033.67            130.00%              $20.91          109.09%           10.82%              13.33%
      1,078.61            140.00%              $21.82          118.18%           11.46%              13.97%
      1,123.55            150.00%              $22.73          127.27%           12.08%              14.58%

</TABLE>

- -----------
(1)  The  annualized  rates of return  specified  in the  preceding  table are
     calculated on a semiannual bond equivalent basis.
   
(2) This rate of return assumes:
    (a)  a constant dividend yield of 1.15% per annum, paid quarterly from
         the date of initial delivery of MITTS  Securities, applied to the
         value of the Index at the end of each quarter, assuming this value
         increases or decreases linearly from the Starting Value to the
         hypothetical Ending Value;
    (b)  no transaction fees or expenses;
    (c)  the term of the MITTS  Securities is from  September 29, 1997 to
         September 30, 2004;
    (d)  the aggregate  dividend yield of the stocks underlying the Index
         as of September 23, 1997 was
         approximately 1.15%.
    (e)  a final Index value equal to the hypothetical Ending Value.
(3)  The Starting Value of the Index.

     The above figures are for purposes of illustration only. The actual
investment term, Supplemental Redemption Amount received by investors, and the
respective resulting total and pretax annualized rate of return will depend
entirely on the actual Ending Value determined by the calculation agent as
provided in this prospectus.
    

Adjustments to the Index; Market Disruption Events

   
     If at any time the method of calculating the Index, or its value , is
changed in any material respect, or if the Index is in any other way modified
so that the Index does not, in the opinion of the calculation agent, fairly
represent the value of the Index had the changes or modifications not been
made, then, from and after that time, the calculation agent shall, at the
close of business in New York, New York, on each date that the closing value
with respect to the Ending Value is to be calculated, make any adjustments as,
in the good faith judgment of the calculation agent, may be necessary in order
to arrive at a calculation of a value of a stock Index comparable to the Index
as if any changes or modifications had not been made, and calculate the
closing value with reference to the Index, as adjusted. Accordingly, if the
method of calculating the Index is modified so that the value of the Index is
a fraction or a multiple of what it would have been if it had not been
modified, for example, due to a split in the Index, then the calculation agent
shall adjust the Index in order to arrive at a value of the Index as if it had
not been modified, for example, as if the split had not occurred.

     "Market Disruption Event" means either of the following events, as
determined by the calculation agent:

     (a)  the suspension or material limitation on trading for more than two
          hours of trading, or during the one-half hour period preceding the
          close of trading on the applicable exchange, each case, in 20% or
          more of the stocks which then comprise the Index; or

     (b)  the suspension or material limitation, in each case, for more than
          two hours of trading, whether by reason of movements in price
          otherwise exceeding levels permitted by the relevant exchange or
          otherwise, in
    

          (A)  futures contracts related to the Index which are traded on the
               Chicago Mercantile Exchange or

   
          (B)  option contracts related to the Index which are traded on the
               Chicago Board Options Exchange, Inc.

          For the purposes of clause (a) above, any limitations on trading
     during significant market fluctuations under New York Stock Exchange Rule
     80A, or any applicable rule or regulation enacted or promulgated by the
     NYSE or any other self regulatory organization or the SEC of similar
     scope as determined by the calculation agent, will be considered
     "material".

In some circumstances, the duties of MLPF&S as calculation agent in
determining the existence of Market Disruption Events could conflict with the
interests of MLPF&S as a subsidiary of ML&Co.
    

Discontinuance of the Index

   
     If FRC discontinues publication of the Index and FRC or another entity
publishes a successor or substitute Index that the calculation agent
determines, in its sole discretion, to be comparable to the Index, referred to
as a "Successor Index", then, upon the calculation agent's notification of its
determination to the trustee and ML&Co., the calculation agent will substitute
the Successor Index as calculated by FRC or any other entity for the Index and
calculate the Ending Value as described above under "-Payment at Maturity".
Upon any selection by the calculation agent of a Successor Index, ML&Co. shall
cause notice to be given to holders of the MITTS Securities.

     If FRC discontinues publication of the Index and a Successor Index is not
selected by the calculation agent or is no longer published on any of the
Calculation Days, the value to be substituted for the Index for any
Calculation Day used to calculate the Supplemental Redemption Amount at
maturity will be a value computed by the calculation agent for each
Calculation Day in accordance with the procedures last used to calculate the
Index before any discontinuance. If a Successor Index is selected or the
calculation agent calculates a value as a substitute for the Index as
described below, the Successor Index or value shall be substituted for the
Index for all purposes, including for purposes of determining whether a Market
Disruption Event exists. If the calculation agent calculates a value as a
substitute for the Index, "Calculation Day" shall mean any day on which the
calculation agent is able to calculate the value.

     If FRC discontinues publication of the Index before the period during
which the Supplemental Redemption Amount is to be determined and the
calculation agent determines that no Successor Index is available at that
time, then on each Business Day until the earlier to occur of:

     o    the determination of the Ending Value and

     o    a determination by the calculation agent that a Successor Index is
          available,

the calculation agent shall determine the value that would be used in
computing the Supplemental Redemption Amount as described in the preceding
paragraph as if that day were a Calculation Day. The calculation agent will
cause notice of each value to be published not less often than once each month
in The Wall Street Journal (or another newspaper of general circulation), and
arrange for information with respect to these values to be made available by
telephone.

     Notwithstanding these alternative arrangements, discontinuance of the
publication of the Index may adversely affect trading in the MITTS Securities.
    

Events of Default and Acceleration

   
     In case an Event of Default with respect to any MITTS Securities has
occurred and is continuing, the amount payable to a beneficial owner of a
MITTS Security upon any acceleration permitted by the MITTS Securities, with
respect to each $10 principal amount per unit, will be equal to the principal
amount per unit and the Supplemental Redemption Amount, if any, calculated as
though the date of early repayment were the stated maturity date of the MITTS
Securities. See "- Payment at Maturity" in this prospectus. If a bankruptcy
proceeding is commenced in respect of ML&Co., the claim of the beneficial
owner of a MITTS Security may be limited, under Section 502(b)(2) of Title 11
of the United States Code, to the principal amount per unit of the MITTS
Security plus an additional amount of contingent interest calculated as though
the date of the commencement of the proceeding were the maturity date of the
MITTS Securities.

     In case of default in payment of the MITTS Securities, whether at the
stated maturity or upon acceleration, from and after the maturity date the
MITTS Securities shall bear interest, payable upon demand of the beneficial
owners of the MITTS Securities, at the rate of 6.39% per annum, to the extent
that payment of any interest shall be legally enforceable, on the unpaid
amount due and payable on that date in accordance with the terms of the MITTS
Securities to the date payment of any amount has been made or duly provided
for.

Global Securities

     Description of the Global Securities

     Beneficial owners of the MITTS Securities may not receive physical
delivery of the MITTS Securities nor may they be entitled to have the MITTS
Securities registered in their names. The MITTS Securities currently are
represented by one or more fully registered global securities. Each global
security was deposited with, or on behalf of, The Depository Trust Company or
DTC (DTC, together with any successor to DTC, being a "depositary"), as
depositary, registered in the name of Cede & Co., DTC's partnership nominee.
Unless and until it is exchanged in whole or in part for MITTS Securities in
definitive form, no global security may be transferred except as a whole by
the depositary to a nominee of the depositary or by a nominee of the
depositary to the depositary or another nominee of the depositary or by the
depositary or any nominee to a successor of the depositary or a nominee of
that successor.

     So long as DTC, or its nominee, is a registered owner of a global
security, DTC or its nominee, as the case may be, will be considered the sole
owner or holder of the MITTS Securities represented by a global security for
all purposes under the 1983 Indenture. Except as provided below, the
beneficial owners of the MITTS Securities represented by a global security
will not be entitled to have the MITTS Securities represented by the global
security registered in their names, will not receive or be entitled to receive
physical delivery of the MITTS Securities in definitive form and will not be
considered the owners or holders under the 1983 Indenture, including for
purposes of receiving any reports delivered by ML&Co. or the trustee under the
1983 Indenture. Accordingly, each person owning a beneficial interest in a
global security must rely on the procedures of DTC and, if that person is not
a participant of DTC on the procedures of the participant through which that
person owns its interest, to exercise any rights of a holder under the 1983
Indenture. ML&Co. understands that under existing industry practices, in the
event that ML&Co. requests any action of holders or that an owner of a
beneficial interest in a global security desires to give or take any action
which a holder is entitled to give or take under the 1983 Indenture, DTC would
authorize the participants holding the relevant beneficial interests to give
or take any action, and the participants would authorize beneficial owners
owning through those participants to give or take action or would otherwise
act upon the instructions of beneficial owners. Conveyance of notices and
other communications by DTC to participants, by participants to indirect
participants and by participants and indirect participants to beneficial
owners will be governed by arrangements among them, subject to any statutory
or regulatory requirements as may be in effect from time to time.

     DTC Procedures
    

     The following is based on information furnished by DTC:

   
     DTC is the securities depositary for the MITTS Securities. The MITTS
Securities were issued as fully registered securities registered in the name
of Cede & Co., DTC's partnership nominee. One or more fully registered global
securities were issued for the MITTS Securities in the aggregate principal
amount of the MITTS Securities, and were deposited with DTC.

     DTC is a limited-purpose trust company organized under the New York
Banking Law, a "banking organization" within the meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing corporation"
within the meaning of the New York Uniform Commercial Code, and a "clearing
agency" registered under to the provisions of Section 17A of the Securities
and Exchange Act of 1934, as amended. DTC holds securities that its
participants deposit with DTC. DTC also facilitates the settlement among
participants of securities transactions, such as transfers and pledges, in
deposited securities through electronic computerized book-entry changes in
participants' accounts, thereby eliminating the need for physical movement of
securities certificates. Direct participants of DTC include securities brokers
and dealers, banks, trust companies, clearing corporations and other
organizations. DTC is owned by a number of its direct participants and by the
NYSE, the AMEX and the National Association of Securities Dealers, Inc. Access
to DTC's system is also available to others such as securities brokers and
dealers, banks and trust companies that clear through or maintain a custodial
relationship with a direct participant, either directly or indirectly. The
rules applicable to DTC and its participants are on file with the SEC.

     Purchases of MITTS Securities under DTC's system must be made by or
through direct participants, which will receive a credit for the MITTS
Securities on DTC's records. The ownership interest of each beneficial owner
is in turn to be recorded on the records of direct and indirect participants.
Beneficial owners will not receive written confirmation from DTC of their
purchase, but beneficial owners are expected to receive written confirmations
providing details of the transaction, as well as periodic statements of their
holdings, from the direct participants or indirect participants through which
the beneficial owner entered into the transaction. Transfers of ownership
interests in the MITTS Securities are to be accomplished by entries made on
the books of participants acting on behalf of beneficial owners.

     To facilitate subsequent transfers, all MITTS Securities deposited with
DTC are registered in the name of DTC's partnership nominee, Cede & Co. The
deposit of MITTS Securities with DTC and their registration in the name of
Cede & Co. effect no change in beneficial ownership. DTC has no knowledge of
the actual beneficial owners of the MITTS Securities; DTC's records reflect
only the identity of the direct participants to whose accounts the MITTS
Securities are credited, which may or may not be the beneficial owners. The
participants will remain responsible for keeping account of their holdings on
behalf of their customers.

     Conveyance of notices and other communications by DTC to direct
participants, by direct participants to indirect participants, and by direct
and indirect participants to beneficial owners will be governed by
arrangements among them, subject to any statutory or regulatory requirements
as may be in effect from time to time.

     Neither DTC nor Cede & Co. will consent or vote with respect to the MITTS
Securities. Under its usual procedures, DTC mails an omnibus proxy to ML&Co.
as soon as possible after the applicable record date. The omnibus proxy
assigns Cede & Co.'s consenting or voting rights to those direct participants
identified in a listing attached to the omnibus proxy to whose accounts the
MITTS Securities are credited on the record date identified in a listing
attached to the omnibus proxy.

     Principal, premium, if any, and/or interest, if any, payments on the
MITTS Securities will be made in immediately available funds to DTC. DTC's
practice is to credit direct participants' accounts on the applicable payment
date in accordance with their respective holdings shown on the depositary's
records unless DTC has reason to believe that it will not receive payment on
that date. Payments by participants to beneficial owners will be governed by
standing instructions and customary practices, as is the case with securities
held for the accounts of customers in bearer form or registered in "street
name", and will be the responsibility of the participant and not of DTC, the
trustee or ML&Co., subject to any statutory or regulatory requirements as may
be in effect from time to time. Payment of principal, premium, if any, and/or
interest, if any, to DTC is the responsibility of ML&Co. or the trustee,
disbursement of payments to direct participants is the responsibility of DTC,
and disbursement of payments to the beneficial owners is the responsibility of
direct and indirect participants.

     Exchange for Certificated Securities

     If:

     o    the depositary is at any time unwilling or unable to continue as
          depositary and a successor depositary is not appointed by ML&Co.
          within 60 days,

     o    ML&Co. executes and delivers to the trustee a company order to the
          effect that the global securities shall be exchangeable, or

     o    an Event of Default under the 1983 Indenture has occurred and is
          continuing with respect to the MITTS Securities,

the global securities will be exchangeable for MITTS Securities in definitive
form of like tenor and of an equal aggregate principal amount, in
denominations of $10 and integral multiples of $10. The definitive MITTS
Securities will be registered in the name or names as the depositary shall
instruct the trustee. It is expected that instructions may be based upon
directions received by the depositary from participants with respect to
ownership of beneficial interests in the global securities.

     In addition, ML&Co. may decide to discontinue use of the system of
book-entry transfers through the depositary. In that event, MITTS Securities
in definitive form will be printed and delivered.

     The information in this section concerning DTC and DTC's system has been
obtained from sources that ML&Co. believes to be reliable, but ML&Co. takes no
responsibility for its accuracy .
    

Same-Day Settlement and Payment

   
     ML&Co. will make all payments of principal and the Supplemental
Redemption Amount, if any, in immediately available funds so long as the MITTS
Securities are maintained in book-entry form.
    


                                   THE INDEX

   
     Unless otherwise stated, all information in this prospectus on the Index
is derived from FRC or other publicly available sources. This information
reflects the policies of FRC as stated in these sources and these policies are
subject to change by FRC. FRC is under no obligation to continue to publish
the Index and may discontinue publication of the Index at any time.

     The Index is an index calculated, published and disseminated by FRC, and
measures the composite price performance of stocks of 2,000 companies
domiciled in the U.S. and its territories. All 2,000 stocks are traded on
either the NYSE or the AMEX or in the over-the-counter market and form a part
of the Russell 3000(R) Index. The Russell 3000 Index is composed of the 3,000
largest U.S. companies as determined by market capitalization and represents
approximately 98% of the investable U.S. equity market.

     The Index consists of the smallest 2,000 companies included in the
Russell 3000 Index and represents approximately 9.51% of the total market
capitalization of the Russell 3000 Index. The Index is designed to track the
performance of the small capitalization segment of the U.S. equity market.

     Only common stocks belonging to corporations domiciled in the U.S. and
its territories are eligible for inclusion in the Russell 3000 Index and the
Index. Stocks traded on U.S. exchanges but domiciled in other countries are
excluded. Preferred stock, convertible preferred stock, participating
preferred stock, paired shares, warrants and rights are also excluded. Trust
receipts, Royalty Trusts, limited liability companies, OTC Bulletin Board
companies, pink sheets, closed-end mutual funds, and limited partnerships that
are traded on U.S. exchanges, are also ineligible for inclusion. Real Estate
Investment Trusts and Beneficial Trusts are eligible for inclusion, however.
Generally, only one class of securities of a company is allowed in the Russell
3000 Index, although exceptions to this general rule have been made where FRC
has determined that each class of securities acts independent of the other.
    

     The primary criteria used to determine the initial list of securities
eligible for the Russell 3000 Index is total market capitalization, which is
defined as the price of the shares times the total number of shares
outstanding. Based on closing values on May 31 of each year, FRC reconstitutes
the composition of the Russell 3000 Index using the then existing market
capitalizations of eligible companies. As of June 30 of each year, the Index
is adjusted to reflect the reconstitution of the Russell 3000 Index for that
year. Publication of the Index began on January 1, 1987.

   
     As a capitalization-weighted Index, the Russell 2000 Index reflects
changes in the capitalization (market value) of the component stocks relative
to the capitalization on a base date. The current Index value is calculated by
adding the market values of the Index's component stocks, which are derived by
multiplying the price of each stock by the number of shares outstanding, to
arrive at the total market capitalization of the 2,000 stocks. The total
market capitalization is then divided by a divisor, which represents the
"adjusted" capitalization of the Index on the base date of December 31, 1986.
To calculate the Index, last sale prices will be used for exchange-traded and
NASDAQ stocks. If a component stock is not open for trading, the most recently
traded price for that security will be used in calculating the Index. In order
to provide continuity for the Index's value, the divisor is adjusted
periodically to reflect events including changes in the number of common
shares outstanding for component stocks, company additions or deletions,
corporate restructurings and other capitalization changes.

     The value of the Index is reported on the AMEX under the Symbol "RUT", on
Bloomberg under the symbol "RUY" and on Reuters under the symbol ".Rut".

     All disclosure contained in this prospectus regarding the Index, or its
publisher, is derived from publicly available information. All copyrights and
other intellectual property rights relating to the Index are owned by FRC. FRC
has no relationship with ML&Co., Inc. or the MITTS Securities; it does not
sponsor, endorse, authorize, sell or promote the MITTS Securities, and has no
obligation or liability in connection with the administration, marketing or
trading of the MITTS Securities.


                                  OTHER TERMS

     ML&Co. issued the MITTS Securities as a series of senior debt securities
under the 1983 Indenture, dated as of April 1, 1983, as amended and restated,
between ML&Co. and The Chase Manhattan Bank, as trustee. A copy of the 1983
Indenture is filed as an exhibit to the registration statement relating to the
MITTS Securities of which this prospectus is a part. The following summaries
of the material provisions of the 1983 Indenture are not complete and are
subject to, and qualified in their entirety by reference to, all provisions of
the 1983 Indenture, including the definitions of terms in the 1983 Indenture.

     ML&Co. may issue series of senior debt securities from time to time under
the 1983 Indenture, without limitation as to aggregate principal amount, in
one or more series and upon terms as ML&Co. may establish under the provisions
of the 1983 Indenture.

     The 1983 Indenture and the MITTS Securities are governed by and construed
in accordance with the laws of the State of New York.

     ML&Co. may issue senior debt securities with terms different from those
of senior debt securities previously issued, and issue additional senior debt
securities of a previously issued series of senior debt securities.

     The senior debt securities are unsecured and rank equally with all other
unsecured and unsubordinated indebtedness of ML&Co. However, because ML&Co. is
a holding company, the rights of ML&Co. and its creditors, including the
holders of senior debt securities, to participate in any distribution of the
assets of any subsidiary upon its liquidation or reorganization or otherwise
are necessarily subject to the prior claims of creditors of the subsidiary,
except to the extent that a bankruptcy court may recognize claims of ML&Co.
itself as a creditor of the subsidiary . In addition, dividends, loans and
advances from certain subsidiaries, including MLPF&S, to ML&Co. are restricted
by net capital requirements under the Exchange Act, and under rules of
exchanges and other regulatory bodies.
    

Limitations Upon Liens

   
     ML&Co. may not, and may not permit any majority-owned subsidiary to,
create, assume, incur or permit to exist any indebtedness for borrowed money
secured by a pledge, lien or other encumbrance, other than those liens
specifically permitted by the 1983 Indenture, on the Voting Stock owned
directly or indirectly by ML&Co. of any majority-owned subsidiary, other than
a majority-owned subsidiary which, at the time of the incurrence of the
secured indebtedness, has a net worth of less than $3,000,000, unless the
outstanding senior debt securities are secured equally and ratably with the
secured indebtedness.

     "Voting Stock" is defined in the 1983 Indenture as the stock of the class
or classes having general voting power under ordinary circumstances to elect
at least a majority of the board of directors, managers or trustees of a
corporation provided that, for the purposes of the 1983 Indenture, stock that
carries only the right to vote conditionally on the occurrence of an event is
not considered voting stock whether or not the event has happened.
    

Limitation on Disposition of Voting Stock of, and Merger and Sale of Assets by,
MLPF&S

   
     ML&Co. may not sell, transfer or otherwise dispose of any Voting Stock of
MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of its
Voting Stock, unless, after giving effect to any transaction, MLPF&S remains a
Controlled Subsidiary.

     "Controlled Subsidiary" is defined in the 1983 Indenture to mean a
corporation more than 80% of the outstanding shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

     In addition, ML&Co. may not permit MLPF&S to:

     o    merge or consolidate, unless the surviving company is a Controlled
          Subsidiary, or
    

     o    convey or transfer its properties and assets substantially as an
          entirety, except to one or more Controlled Subsidiaries.

Merger and Consolidation

   
     ML&Co. may consolidate or merge with or into any other corporation and
ML&Co. may sell, lease or convey all or substantially all of its assets to any
corporation, provided that:

     o    the resulting corporation, if other than ML&Co., is a corporation
          organized and existing under the laws of the United States of
          America or any U.S. state and assumes all of ML&Co.'s obligations
          to:

          o    pay any amounts due and payable or  deliverable  with  respect to
               all the senior debt securities; and

          o    perform and observe  all of ML&Co.'s  obligations  under the 1983
               Indenture, and

     o    ML&Co.or  the  successor  corporation,  as the  case  may be,  is not,
          immediately  after any  consolidation or merger,  in default under the
          1983 Indenture.
    

Modification and Waiver

   
     ML&Co. and the trustee may modify and amend the 1983 Indenture with the
consent of holders of at least 66 2/3% in principal amount of each outstanding
series of senior debt securities affected. However, without the consent of
each holder of any outstanding senior debt security affected, no amendment or
modification to the 1983 Indenture may:

     o    change the stated maturity date of the principal of, or any
          installment of interest or Additional Amounts payable on, any senior
          debt security or any premium payable on redemption , or change the
          redemption price;

     o    reduce the principal amount of, or the interest or Additional
          Amounts payable on, any senior debt security or reduce the amount of
          principal which could be declared due and payable before the stated
          maturity date;

     o    change the place or currency of any payment of principal or any
          premium, interest or Additional Amounts payable on any senior debt
          security;

     o    impair the right to institute suit for the enforcement of any
          payment on or with respect to any senior debt security;

     o    reduce the percentage in principal amount of the outstanding senior
          debt securities of any series, the consent of whose holders is
          required to modify or amend the 1983 Indenture; or

     o    modify the foregoing requirements or reduce the percentage of
          outstanding senior debt securities necessary to waive any past
          default to less than a majority.

     No modification or amendment of ML&Co.'s Subordinated Indenture or any
Subsequent Indenture for subordinated debt securities may adversely affect the
rights of any holder of ML&Co.'s senior indebtedness without the consent of
each holder affected. The holders of at least a majority in principal amount
of outstanding senior debt securities of any series may, with respect to that
series, waive past defaults under the 1983 Indenture and waive compliance by
ML&Co. with provisions in the 1983 Indenture, except as described under
"--Events of Default".

Events of Default

     Each of the following will be Events of Default with respect to senior
debt securities of any series:

     o    default in the payment of any interest or Additional Amounts payable
          when due and continuing for 30 days;

     o    default in the payment of any principal or premium when due;

     o    default in the deposit of any sinking fund payment, when due;

     o    default in the performance of any other obligation of ML&Co.
          contained in the 1983 Indenture for the benefit of that series or in
          the senior debt securities of that series, continuing for 60 days
          after written notice as provided in the 1983 Indenture;

     o    specified events in bankruptcy, insolvency or reorganization of
          ML&Co.; and

     o    any other Event of Default provided with respect to senior debt
          securities of that series which are not inconsistent with the 1983
          Indenture.

If an Event of Default occurs and is continuing for any series of senior debt
securities, other than as a result of the bankruptcy, insolvency or
reorganization of ML&Co., the trustee or the holders of at least 25% in
principal amount of the outstanding senior debt securities of that series may
declare all amounts, or any lesser amount provided for in the senior debt
securities, due and payable or deliverable immediately. At any time after a
declaration of acceleration has been made with respect to senior debt
securities of any series but before the trustee has obtained a judgment or
decree for payment of money , the holders of a majority in principal amount of
the outstanding senior debt securities of that series may rescind any
declaration of acceleration and its consequences, if all payments due, other
than those due as a result of acceleration, have been made and all Events of
Default have been remedied or waived.

     The holders of a majority in principal amount or aggregate issue price of
the outstanding senior debt securities of that series may waive any Event of
Default with respect to that series, except a default:

     o    in the payment of any amounts due and payable or deliverable under
          the debt securities of that series; or

     o    in respect of an obligation or provision of the 1983 Indenture which
          cannot be modified under the terms of that Indenture without the
          consent of each holder of each outstanding security of each series
          of senior debt securities affected.

     The holders of a majority in principal amount of the outstanding senior
debt securities of a series may direct the time, method and place of
conducting any proceeding for any remedy available to the trustee or
exercising any trust or power conferred on the trustee with respect to those
senior debt securities, provided that any direction shall not be in conflict
with any rule of law or the 1983 Indenture. Before proceeding to exercise any
right or power under the 1983 Indenture at the direction of the holders, the
trustee shall be entitled to receive from the holders reasonable security or
indemnification against the costs, expenses and liabilities which might be
incurred by it in complying with any direction.

     The MITTS Securities and other series of senior debt securities issued
under the 1983 Indenture do not have the benefit of any cross-default
provisions with other indebtedness of ML&Co.

     ML&Co. is required to furnish to the trustee annually a statement as to
the fulfillment by ML&Co. of all of its obligations under the 1983 Indenture.


                          PROJECTED PAYMENT SCHEDULE

     Solely for purposes of applying the Treasury Department Final Regulations
(the "Final Regulations") concerning the United States Federal income tax
treatment of contingent payment debt instruments to the MITTS Securities,
ML&Co. has determined that the projected payment schedule for the MITTS
Securities will consist of payment on the maturity date of the principal
amount and a projected Supplemental Redemption Amount equal to $5.5304 per
unit. This represents an estimated yield on the MITTS Securities equal to
6.39% per annum, compounded semiannually.

     The projected payment schedule, including both the projected Supplemental
Redemption Amount and the estimated yield on the MITTS Securities, has been
determined solely for United States Federal income tax purposes, for purposes
of applying the Final Regulations to the MITTS Securities, and is neither a
prediction nor a guarantee of what the actual Supplemental Redemption Amount
will be, or that the actual Supplemental Redemption Amount will even exceed
zero.

     The following table sets forth the amount of interest that will be deemed
to have accrued with respect to each unit of the MITTS Securities during each
accrual period over a term of seven years and one day for the MITTS Securities
based upon the projected payment schedule for the MITTS Securities, including
both the projected Supplemental Redemption Amount and the estimated yield
equal to 6.39% per annum, compounded semiannually, as determined by ML&Co. for
purposes of application of the Final Regulations to the MITTS Securities:


<TABLE>
<CAPTION>


                                                                                               Total Interest
                                                                                                  Deemed to
                                                                                                Have Accrued
                                                                                                on the MITTS
                                                                     Interest Deemed to          Securities
                                                                       Accrue During            as of End of
                                                                       Accrual Period          Accrual Period
                         Accrual Period                                  (per unit)             (per unit) 
                         --------------                              ------------------       ----------------
<S>                                                                  <C>                      <C>


    

September 29, 1997 through March 30, 1998.....................            $0.3186                  $0.3186
March 31, 1998 through September 30, 1998.....................            $0.3315                  $0.6501
October 1, 1998 through March 30, 1999........................            $0.3384                  $0.9885
March 31, 1999 through September 30, 1999.....................            $0.3511                  $1.3396
October 1, 1999 through March 30, 2000........................            $0.3623                  $1.7019
March 31, 2000 through September 30, 2000.....................            $0.3739                  $2.0758
October 1, 2000 through March 30, 2001........................            $0.3858                  $2.4616
March 31, 2001 through September 30, 2001.....................            $0.3981                  $2.8597
October 1, 2001 through March 30, 2002........................            $0.4109                  $3.2706
March 31, 2002 through September 30, 2002.....................            $0.4240                  $3.6946
October 1, 2002 through March 30, 2003........................            $0.4375                  $4.1321
March 31, 2003 through September 30, 2003.....................            $0.4516                  $4.5837
October 1, 2003 through March 30, 2004........................            $0.4659                  $5.0496
March 31, 2004 through September 30, 2004.....................            $0.4808                  $5.5304

</TABLE>


- -----------

   
Projected Supplemental Redemption Amount = $5.5304 per unit.


     All prospective investors in the MITTS Securities should consult their
own tax advisors concerning the application of the Final Regulations to their
investment in the MITTS Securities. Investors in the MITTS Securities may also
obtain the projected payment schedule, as determined by ML&Co. for purposes of
the application of the Final Regulations to the MITTS Securities, by
submitting a written request for such information to Merrill Lynch & Co.,
Inc., Attn: Darryl W. Colletti, Corporate Secretary's Office, 100 Church
Street, 12th Floor, New York, New York 10080-6512.


                      WHERE YOU CAN FIND MORE INFORMATION

     We file reports, proxy statements and other information with the SEC. Our
SEC filings are also available over the Internet at the SEC's web site at
http://www.sec.gov. You may also read and copy any document we file by
visiting the SEC's public reference rooms in Washington, D.C., New York, New
York, and Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further
information about the public reference rooms. You may also inspect our SEC
reports and other information at the New York Stock Exchange, Inc., 20 Broad
Street, New York, New York 10005.

     We have filed a registration statement on Form S-3 with the SEC covering
the MITTS Securities and other securities. For further information on ML&Co.
and the MITTS Securities, you should refer to our registration statement and
its exhibits. This prospectus summarizes material provisions of contracts and
other documents that we refer you to. Because the prospectus may not contain
all the information that you may find important, you should review the full
text of these documents. We have included copies of these documents as
exhibits to our registration statement of which this prospectus is a part.


               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

     The SEC allows us to incorporate by reference the information we file
with them, which means:

     o    incorporated documents are considered part of the prospectus;

     o    we can disclose important information to you by referring you to
          those documents; and

     o    information that we file with the SEC will automatically update and
          supersede this incorporated information.

     We incorporate by reference the documents listed below which were filed
with the SEC under the Exchange Act:

     o    annual report on Form 10-K for the year ended December 25, 1998; and

     o    current reports on Form 8-K dated December 28, 1998, January 19,
          1999, February 17, 1999, February 18, 1999, February 22, 1999,
          February 23, 1999 and March 26, 1999.

     We also  incorporate by reference  each of the following  documents that we
will file with the SEC after the date of this prospectus  until this offering is
completed or after the date of this initial  registration  statement  and before
the effectiveness of the registration statement:

     o    reports filed under Sections 13(a) and (c) of the Exchange Act;

     o    definitive proxy or information statements filed under Section 14 of
          the Exchange Act in connection with any subsequent stockholders'
          meeting; and

     o    any reports filed under Section 15(d) of the Exchange Act.

     You should rely only on information contained or incorporated by
reference in this prospectus. We have not, and MLPF&S has not, authorized any
other person to provide you with different information. If anyone provides you
with different or inconsistent information, you should not rely on it. We are
not, and MLPF&S is not, making an offer to sell these securities in any
jurisdiction where the offer or sale is not permitted.

     You should assume that the information appearing in this prospectus is
accurate as of the date of this prospectus only. Our business, financial
condition and results of operations may have changed since that date.

     You may request a copy of any filings referred to above (excluding
exhibits), at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan, Jr., Corporate Secretary's Office, Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.


                             PLAN OF DISTRIBUTION

     This prospectus has been prepared in connection with secondary sales of
the MITTS Securities and is to be used by MLPF&S when making offers and sales
related to market-making transactions in the MITTS Securities.

     MLPF&S may act as principal or agent in these market-making transactions.

     The MITTS Securities may be offered on the AMEX or off the exchange in
negotiated transactions or otherwise.

     The distribution of the MITTS Securities will conform to the requirements
set forth in the applicable sections of Rule 2720 of the Conduct Rules of the
NASD.
    


                                    EXPERTS

   
     The consolidated financial statements and the related financial statement
schedule incorporated in this prospectus by reference from the Annual Report
on Form 10-K of Merrill Lynch & Co., Inc. and subsidiaries
have been audited by Deloitte & Touche LLP, independent auditors, as stated in
their reports (which express an unqualified opinion and which report on the
consolidated financial statements includes an explanatory paragraph 
for the change in accounting method for certain internal-use software
development costs), which are incorporated herein by reference, and have been
so incorporated in reliance upon the reports of such firm given upon their
authority as experts in accounting and auditing.

    

<PAGE>
   
     The information in this prospectus is not complete and may be changed. We
may not sell these securities until the registration statement filed with the
Securities and Exchange Commission is effective. This prospectus is not an
offer to sell these securities and it is not soliciting an offer to buy these
securities in any state where the offer or sale is not permitted.
    

   
                             Subject to Completion
                  Preliminary Prospectus dated March 29, 1999


ROSPECTUS
    

                           Merrill Lynch & Co., Inc.
                           Telebras Indexed Callable
   
                Protected GrowthSM Securities due May 19, 2005
                            "ProGroSSM Securities"
                         $10 principal amount per unit



     This prospectus is to be used by Merrill Lynch & Co., Merrill Lynch,
Pierce, Fenner & Smith Incorporated, our wholly-owned subsidiary, when making
offers and sales related to market-making transactions in the ProGroS
Securities .

<TABLE>
<CAPTION>

<S>                                                         <C>

The ProGroS Securities:                                     Payment at Maturity:

o  100% principal protected if held to maturity             o   On the maturity date, for each unit of the ProGroS
                                                                Securities you own, we will pay you an amount equal to
o  Callable prior to the stated maturity date by Merrill        the sum of principal amount of each unit and an
   Lynch & Co., Inc.                                            additional amount based on the percentage increase, if
                                                                any, in the price of an American  Depositary  Receipt
o  No payments before the stated maturity date unless           which trades on the NYSE representing the common
   called by Merrill Lynch & Co., Inc.                          stock of  Telecommunicacoes Brasileiras S.A. - 
                                                                Telebras  and  he value of securities, cash or
o  Senior  unsecured debt  securities of Merrill Lynch & Co.,   property received by holders of  ADR in  corporate
   Inc.                                                         reorganizations of Telebras over the term of the
                                                                ProGroS Securities.
o The ProGroS Securities are listed on the American Stock
   Exchange under the symbol "PGT".                         o   You will receive no less than principal amount of
                                                                your ProGroS Securities.

</TABLE>


              Investing in the ProGroS Securities involves risks.
                    See "Risk Factors" beginning on page 3


     Neither the Securities and Exchange SEC nor any state securities
commission has approved or disapproved of these securities or determined if
this prospectus is truthful or complete. Any representation to the contrary is
a criminal offense.

                               ----------------
    

                              Merrill Lynch & Co.
                               ----------------


                  The date of this prospectus is     , 199 .

   
"Protected Growth" and "ProGroS" are registered service marks of Merrill Lynch
& Co., Inc.
    


<PAGE>


   
                               TABLE OF CONTENTS


MERRILL LYNCH & CO., INC...................................................8
RATIO OF EARNINGS TO FIXED CHARGES.........................................9
DESCRIPTION OF THE PROGROS SECURITIES......................................9
THE TELEBRAS RECEIPT......................................................21
OTHER TERMS...............................................................22
WHERE YOU CAN FIND MORE INFORMATION.......................................25
INCORPORATION OF INFORMATION WE FILE WITH THE SEC.........................25
PLAN OF DISTRIBUTION......................................................26
EXPERTS...................................................................26
    


<PAGE>


                                 RISK FACTORS

   
     Your investment in the ProGroS Securities will involve risks. You should
carefully consider the following discussion of risks before deciding whether
an investment in the ProGroS Securities is suitable for you.

We may call the ProGroS Securities  before the stated maturity date

     We may elect to call all of the ProGroS Securities in the manner and
times described in this prospectus. We are likely to call the ProGroS
Securities during the month of June 2004 when the secondary market price of
the ProGroS Securities is approximately equal to the applicable call price
during such period. We can, however, call the ProGroS Securities during the
specified periods at our option regardless of the secondary market price of
the ProGroS Securities. In the event that we elect to call the ProGroS
Securities, you will receive only the relevant call price and no additional
amount based on the price of the American Depository Receipt representing
Common Stock Telebras or Telebras Receipt.

You may not earn a return on your investment

     You should be aware that if the ending value of Telebras Receipt
determined as described in this prospectus, does not exceed $115,4375 at the
stated maturity , you will only receive the principal of your ProGroS
Securities. This will be true even if the value of the Telebras Receipt, at
some time during the life of the ProGroS Securities was higher than the
$115,4375.

     You should compare the features of the ProGroS Securities to other
available investments before deciding to purchase the ProGroS Securities. Due
to the uncertainty as to whether the ProGroS Securities will earn a return or
be called before the stated maturity date, the returns which you may receive
with respect to the ProGroS Securities may be higher or lower than the returns
available on other investments. You should reach an investment decision only
after carefully considering the suitability of the ProGroS Securities in light
of your particular circumstances.
    

Your yield may be lower than the yield on a standard debt security of comparable
maturity

   
     The amount we pay you at maturity may be less than the return you could
earn on other investments. Your yield may be less than the yield you would
earn if you bought a standard senior non-callable debt security of ML&Co. with
the same stated maturity date. Your investment may not reflect the full
opportunity cost to you when you consider the effect of factors that affect
the time value of money.
    

Your return will not reflect the payment of dividends

   
     The calculation of the starting and ending values of the Telebras Receipt
does not take into consideration the value of dividends paid on the Telebras
Receipt, if any. Therefore, the return you earn on the ProGroS Securities, if
any, will not be the same as the return that you would earn if you actually
owned the Telebras Receipt and received any dividends paid on the common stock
of Telebras .

There may be an uncertain trading market for the ProGroS Securities in the
future

     Although the ProGroS Securities are listed on the AMEX under the symbol
"PGT". You cannot assume that a trading market will continue to exist for the
ProGroS Securities. If a trading market in the ProGroS Securities continues to
exist, you cannot assume that there will be liquidity in the trading market.
The continued existence of a trading market for the ProGroS Securities will
depend on the financial performance and other factors such as the
appreciation, if any, of the price of Telebras Receipt.

     If the trading market for the ProGroS Securities is limited, there may be
a limited number of buyers if you decide to sell your ProGroS Securities. This
may affect the price you receive. Furthermore, it is unlikely that the
secondary market price of the ProGroS Securities will correlate exactly with
the market price of the Telebras Receipt.

There are many factors affecting trading value of the ProGroS Securities

     Our ability to call the ProGroS Securities before the stated maturity
date is likely to limit the secondary market price at which the ProGroS
Securities will trade. In particular, we expect that the secondary market
price of the ProGroS Securities will not exceed the applicable call price
because of our ability to call the ProGroS Securities and pay only the call
price. We believe that if we did not have the right to call the ProGroS
Securities, the secondary market price of the ProGroS Securities would likely
be significantly different.

     We believe that the market value of the ProGroS Securities will be
affected by the value of the Telebras Receipt and by a number of other factors
in addition to our ability to call the ProGroS Securities before the stated
maturity date. Some of these factors are interrelated in complex ways; as a
result, the effect of any one factor may be offset or magnified by the effect
of another factor. The following paragraphs describe the expected impact on
the market value of the ProGroS Securities given a change in a specific
factor, assuming all other conditions remain constant.

o    Value of the Telebras Receipt. We expect that the market value of the
     ProGroS Securities will depend on the amount by which the price of
     Telebras Receipt exceeds$115.4375, the value of Telebras Receipt on the
     date the ProGroS Securities were initially priced for sale to the public.
     If you choose to sell your ProGroS Securities when the price of Telebras
     Receipt exceeds $115.4375, you may receive substantially less than the
     amount that would be payable at the stated maturity date based on that
     price because of the expectation that the price of Telebras Receipt will
     continue to fluctuate until its final value as described in this
     prospectus is determined.

     If you choose to sell your ProGroS Securities when the price of Telebras
     Receipt is below $115.4375, you may receive less than the principal
     amount of your ProGroS Securities. As a general matter, if dividends are
     ever paid on Telebras Receipt, a rising dividend rate, i.e., dividends
     per share, may increase the price of Telebras Receipt while a falling
     dividend rate may decrease its price. Political, economic and other
     developments may also affect the price of Telebras Receipt and the value
     of the ProGroS Securities.

o    Interest Rates. We expect that the trading value of the ProGroS
     Securities will be affected by changes in interest rates. As a general
     matter during the earlier years of the ProGroS Securities, if U.S.
     interest rates increase, we expect that the trading value of the ProGroS
     Securities will decrease and if U.S. interest rates decrease, we expect
     the trading value of the ProGroS Securities will increase. However,
     interest rates in Brazil and the U.S. may also affect the economies of
     Brazil and the U.S. and, in turn, the prices of the reference securities.
     Rising interest rates may lower the prices of the reference securities
     and the ProGroS Securities. Falling interest rates may increase the
     prices of the reference securities and the value of the ProGroS
     Securities.

o    Volatility of the Reference Securities. Volatility is the term used to
     describe the size and frequency of market fluctuations. If the volatility
     of the reference securities increases, we expect that the trading value
     of the ProGroS Securities will increase. If the volatility of the
     reference securities decreases, we expect that the trading value of the
     ProGroS Securities will decrease.

o    Time Remaining to Stated Maturity Date. The ProGroS Securities may trade
     at a value above that which would be expected based on the level of
     interest rates and the price of the Telebras Receipt. This difference
     will reflect a "time premium" due to expectations concerning the price of
     the Telebras Receipt during the period prior to the stated maturity date
     of the ProGroS Securities. However, as the time remaining to the stated
     maturity date of the ProGroS Securities decreases, we expect that this
     time premium will decrease, potentially lowering the trading value of the
     ProGroS Securities.

o    Dividend Yield. If dividends are ever paid on reference security, the
     dividend yield that would result would likely to affect the value of the
     ProGroS Securities. If the dividend yield on a reference security were to
     increase, we expect that the value of the ProGroS Securities would
     decrease. Conversely, if the dividend yield on a Telebras Receipt were to
     decrease, we expect that the value of the ProGroS Securities would
     increase.

o    Changes in our credit ratings. Our credit ratings are an assessment of
     our ability to pay our obligations. Consequently, real or anticipated
     changes in our credit ratings may affect the trading value of the ProGroS
     Securities. However, because your return on your ProGroS Securities is
     dependent upon factors in addition to our ability to pay our obligations
     under the ProGroS Securities, such as the percentage increase in the
     value of Telebras Receipt at maturity, an improvement in our credit
     ratings will not reduce investment risks related to the ProGroS
     Securities.

     It is important for you to understand that the impact of one of the
factors specified above, such as an increase in interest rates, may offset
some or all of any increase in the trading value of the ProGroS Securities
attributable to another factor, such as an increase in the value of the
Telebras Receipt.

     In general, assuming all relevant factors are held constant, we expect
that the effect on the trading value of the ProGroS Securities of a given
change in most of the factors listed above will be less if it occurs later in
the term of the ProGroS Securities than if it occurs earlier in the term of
the ProGroS Securities except that we expect that the effect on the trading
value of the ProGroS Securities of a given increase in the value of the
Telebras Receipt will be greater if it occurs later in the term of the ProGroS
Securities than if it occurs earlier in the term of the ProGroS Securities.
    

American Depositary Receipts

   
     The Telebras Receipt is an ADR representing 1,000 shares of common stock
of Telebras. If Telebras is reorganized, the Telebras Receipt will be adjusted
as described below to reflect certain distributions of cash, securities and/or
other property. Some of the reference securities distributed in any such
reorganization may be ADRs. An ADR is a negotiable receipt which is issued by
a depositary, generally a bank, representing shares, such as the common stock
of Telebras, of a non-U.S. issuer that have been deposited and are held, on
behalf of the holders of the ADRs, at a custodian bank in the non-U.S.
issuer's home country. While the market for shares underlying an ADR generally
will be in the country in which the non-U.S. issuer is organized and trading
in such market generally will be based on that country's currency, ADRs will
trade in U.S. dollars.

     Although ADRs are distinct securities from the shares of stock underlying
such ADRs, the trading characteristics and valuations of ADRs will usually,
but not necessarily, mirror the characteristics and valuations of such shares
represented by the ADRs. Inasmuch as holders of ADRs may surrender the ADR in
order to take delivery of and trade the shares underlying such ADR, a
characteristic that allows investors in ADRs to take advantage of price
differentials between different markets, a market for the shares of stock
underlying an ADR that is not liquid generally will result in an illiquid
market for the ADR representing such underlying shares.

     The depositary bank that issues an ADR generally charges a fee, based on
the price of the ADR, upon issuance and cancellation of the ADR. This fee
would be in addition to the brokerage commissions paid upon the acquisition or
surrender of the security. In addition, the depositary bank incurs expenses in
connection with the conversion of dividends or other cash distributions paid
in local currency into U.S. dollars and such expenses are deducted from the
amount of the dividend or distribution paid to holders, resulting in a lower
payout per share of stock underlying an ADR represented by the ADR than would
be the case if such share were held directly. Certain tax considerations,
including tax rate differentials, arising from application of the tax laws of
one nation to the nationals of another and from certain practices in the ADR
market may also exist with respect to an ADR. In varying degrees, any or all
of these factors may affect the value of the ADR compared with the value of
the shares of stock underlying an ADR in the local market.
    

Foreign Currency Exchange Rate and Foreign Market Considerations

   
     The ProGroS Securities are U.S. dollar-denominated securities issued by
ML&Co., a United States corporation. Investments in the ProGroS Securities do
not give the beneficial owners any right to receive a reference security or
any Telebras Receipt or any other ownership right or interest in a reference
security or any Telebras Receipt or the shares of common stock represented by
the Telebras Receipt, although the return on the investment in the ProGroS
Securities is based on the ending value of the Telebras Receipt. The price of
the common stock of Telebras underlying the Telebras Receipt is quoted in
Brazilian currency. To the extent there are other reference securities, the
prices of such other reference securities may also be quoted in currency other
than U.S. dollars. The U.S. dollar price of a reference security that is an
ADR will depend on the price of the shares underlying such ADR and the
exchange rate between the non-U.S. dollar currency and the U.S. dollar. Even
if the price of the shares underlying an ADR is unchanged, changes in the
rates of exchange between the U.S. dollar and the non-U.S. dollar currency
will affect the U.S. dollar price of such ADR. Furthermore, even if the price
in non-U.S. dollar currency of the shares underlying an ADR increases, the
U.S. dollar price of the ADR may decrease as a result of changes in the rates
of exchange between the U.S. dollar and non-U.S. dollar currency.
    

     Rates of exchange between the U.S. dollar and a non-U.S. dollar currency
are determined by forces of supply and demand in the foreign exchange markets.
These forces are, in turn, affected by international balance of payments and
other economic and financial conditions, government intervention, speculation
and other factors. Fluctuations in foreign exchange rates, future U.S. and
non-U.S. political and economic developments and the possible imposition of
exchange controls or other foreign governmental laws or restrictions
applicable to such investments may affect the U.S. dollar value of an ADR.
Moreover, individual foreign economies, such as Brazil's, may differ favorably
or unfavorably from the U.S. economy in such respects as growth of gross
national product, rate of inflation, capital reinvestment, resources,
self-sufficiency and balance of payments position. There is the possibility of
expropriation of assets, confiscatory taxation, political or social
instability or diplomatic developments which could affect the value of
investments in countries, such as Brazil. There may be less publicly available
information about a non-U.S. company, such as Telebras, than about a U.S.
company, and non-U.S. companies are not typically subject to accounting,
auditing and financial reporting standards and requirements comparable to
those to which U.S. entities are subject. Non-U.S. investments may be subject
to foreign withholding taxes which could affect the value of investment. In
addition, investment laws in certain non-U.S. countries such as Brazil may
limit or restrict ownership of certain securities by foreign nationals by
restricting or eliminating voting or other rights or limiting the amount of
securities that may be so owned, and such limitations or restrictions may
affect the prices of such securities.

     Brazil's financial markets, while growing in volume, have substantially
less volume than U.S. markets. The securities of many non-U.S. companies
trading in foreign markets are generally less liquid and their prices more
volatile in such markets than securities of comparable U.S. companies trading
in the domestic financial markets. Foreign markets have different trading
practices that may affect the prices of securities. Non-U.S. markets have
different clearance and settlement procedures than those in the U.S., and in
certain countries, such as Brazil, there have been instances when such
procedures have been insufficient to accommodate the volume of securities
transactions, making it difficult to conduct such transactions. There is
generally less government supervision and regulation of exchanges, brokers and
issuers in Brazil than in the U.S. In addition, the terms and conditions of
depositary facilities may result in less liquidity or lower market values for
the ADRs than for the securities underlying the ADRs.

     The price of the common stock of Telebras and the price of the securities
of any spin-offs from Telebras, will depend on the financial condition and
results of operations of Telebras and such spin-offs. The financial condition
and results of operations of such entities will be affected by general
economic, political, financial and social conditions in Brazil, and in
particular, by prospects for future economic growth and its impact on demand
for telecommunications services in Brazil. Brazil has in the past experienced
economic and political instability and there can be no assurance that current
government programs to stabilize the economy will succeed.

   
You will not have any stockholder's rights with respect to Telebras Receipt

     Beneficial owners of the ProGroS Securities are not entitled to any
rights with respect to any Telebras Receipt, including, voting rights and
rights to receive any dividends or other distributions in respect of the
Telebras Receipt.

No affiliation between  ML&Co. and Telebras

     ML&Co. has no affiliation with Telebras, and Telebras has no obligations
with respect to the ProGroS Securities or amounts to be paid to beneficial
owners thereof, including any obligation to take the needs of ML&Co. or of
beneficial owners of the ProGroS Securities into consideration for any reason.
Telebras did not receive any of the proceeds of the initial offering of the
ProGroS Securities made hereby and is not responsible for, and has not
participated in, the determination or calculation of the amount receivable by
beneficial owners of the ProGroS Securities on the stated maturity date or
upon an earlier call. In addition, Telebras is not involved with the
administration or trading of the ProGroS Securities.

There may be state law limits on  the payment of amounts payable on the ProGroS
Securities

     New York State law governs the 1983 indenture under which the ProGroS
Securities are issued . New York has certain usury laws that limit the amount
of interest that can be charged and paid on loans, which includes debt
securities like the ProGroS Securities. Under present New York law, the
maximum rate of interest is 25% per annum on a simple interest basis. This
limit may not apply to debt securities in which $2,500,000 or more has been
invested.
    

     While we believe that New York law would be given effect by a state or
Federal court sitting outside of New York, many other states also have laws
that regulate the amount of interest that may be charged to and paid by a
borrower. We will promise, for the benefit of the ProGroS Securities holders,
to the extent permitted by law, not to voluntarily claim the benefits of any
laws concerning usurious rates of interest.

   
Purchases and sales by  us and our affiliates may affect your return

     We and our affiliates may from time to time buy or sell the reference
securities, including shares of Telebras stock, for their own accounts for
business reasons or in connection with hedging our obligations under the
ProGroS Securities. These transactions could affect the price of the reference
securities.
    

Potential conflicts

   
     The calculation agent is our subsidiary , the issuer of the ProGroS
Securities. Under certain circumstances, MLPF&S's role as our subsidiary and
its responsibilities as calculation agent for the ProGroS Securities could
give rise to conflicts of interests. You should be aware that because the
calculation agent is controlled by us, potential conflicts of interest could
arise.
    

Other Considerations

     You should also consider the tax consequences of investing in the ProGroS
Securities and should consult your tax advisor.


<PAGE>


   
                           MERRILL LYNCH & CO., INC.

     We are a holding company that, through our U.S. and non-U.S. subsidiaries
and affiliates such as Merrill Lynch, Pierce, Fenner & Smith Incorporated,
Merrill Lynch Government Securities Inc., Merrill Lynch Capital Services,
Inc., Merrill Lynch International, Merrill Lynch Capital Markets Bank Ltd.,
Merrill Lynch Asset Management L.P. and Merrill Lynch Mercury Asset
Management, provides investment, financing, advisory, insurance, and related
products on a global basis, including:

     o    securities brokerage, trading and underwriting;

     o    investment banking, strategic services, including mergers and
          acquisitions and other corporate finance advisory activities;

     o    asset management and other investment advisory and recordkeeping
          services;

     o    trading and brokerage of swaps, options, forwards, futures and other
          derivatives;

     o    securities clearance services;

     o    equity, debt and economic research;

     o    banking, trust and lending services, including mortgage lending and
          related services; and

     o    insurance sales and underwriting services.

     We provide these products and services to a wide array of clients,
including individual investors, small businesses, corporations governments,
governmental agencies and financial institutions.

     Our principal executive office is located at World Financial Center,
North Tower, 250Vesey Street, New York, New York 10281; our telephone number
is (212) 449-1000.

     If you want to find more information about us, please see the sections
entitled "Where You Can Find More Information" and "Incorporation of
Information We File with the SEC" in this prospectus.

     In this prospectus, "ML&Co.", "we", "us" and "our" refer specifically to
Merrill Lynch & Co., Inc., the holding company. ML&Co. is the issuer of the
ProGroS Securities described in this prospectus.
    


<PAGE>


   
                      RATIO OF EARNINGS TO FIXED CHARGES

     In 1998, we acquired the outstanding shares of Midland Walwyn Inc. in a
transaction accounted for as a pooling-of-interests. The following information
for the fiscal years 1994 through 1997 has been restated as if the two
entities had always been combined.

     The following table sets forth our historical ratios of earnings to fixed
charges for the periods indicated:

                                           Year Ended Last Friday in December
                                         
                                         1994      1995     1996    1997    1998
                                         ----      ----     ----    ----    ----
Ratio of earnings to fixed charges (a)   1.2       1.2      1.2     1.2     1.1
- -----------------
(a)  The effect of combining Midland Walwyn did not change the ratios reported
     for the fiscal years 1994 through 1997.

     For the purpose of calculating the ratio of earnings to fixed charges,
"earnings" consist of earnings from continuing operations before income taxes
and fixed charges, excluding capitalized interest and preferred security
dividend requirements. "Fixed charges" consist of interest costs, the interest
factor in rentals, amortization of debt issuance costs, preferred security
dividend requirements of subsidiaries, and capitalized interest.
    


                     DESCRIPTION OF THE PROGROS SECURITIES

   
     The ProGroS Securities were issued as a series of senior debt securities
under the 1983 indenture which is more fully described in this prospectus.

     The ProGroS Securities will mature on May 19, 2005 unless called earlier
at the option of ML&Co.

     Unless called, while at maturity a beneficial owner will receive the
principal amount of such ProGroS Security plus the supplemental redemption
amount described below, if any, there will be no other payment of interest,
periodic or otherwise. See "--Payment at Maturity" below.

     The ProGroS Securities may be called by ML&Co. as described below, but
are not subject to redemption at the option of any beneficial owner prior to
the stated maturity date. Upon the occurrence of an Event of Default with
respect to the ProGroS Securities, beneficial owners of the ProGroS Securities
may accelerate the maturity of the ProGroS Securities, as described under
"--vents of Default and Acceleration" and "Other Terms--General--Events of
Default" in this prospectus.

     The ProGroS Securities were issued in denominations of whole units.
    

Payment at Maturity

   
     At the stated maturity date, a beneficial owner of a ProGroS Security
will be entitled to receive the principal amount of each unit plus a
supplemental redemption amount, if any, as provided below. If the supplemental
redemption amount is not greater than zero, a beneficial owner of a ProGroS
Security will be entitled to receive only the principal amount of its ProGroS
Securities.

     The "supplemental redemption amount" for a ProGroS Security will be
determined by the calculation agent and will equal:
                                                                              

<TABLE>
<CAPTION>

<S>                                                        <C>

principal amount of such ProGroS Security ($10 per unit) x ending value - starting value
                                                           -----------------------------
                                                                    starting value

</TABLE>

provided, however, that in no event will the supplemental redemption amount be
less than zero.

     The "starting value" equals $115.4375.

     The "ending value" will be determined by the calculation agent and will
equal the Reorganization Event Value with respect to a reorganization event,
if any, plus the value of the Telebras Receipt determined as follows:

     (a)  for any portion of the Telebras Receipt consisting of cash, the U.S.
          dollar equivalent of such cash plus interest on such amount accruing
          from the date of the payment of such cash to holders of the relevant
          Telebras Receipt for which such cash was paid until the stated
          maturity date at a fixed interest rate determined on the date of
          such payment equal to the interest rate that would be paid on a
          fixed rate senior non-callable debt security of ML&Co. with a term
          equal to the remaining term for the ProGroS Securities as determined
          by the calculation agent;

     (b)  for any portion of the Telebras Receipt consisting of property other
          than cash or reference securities, the U.S. dollar equivalent of the
          market value of such property on the date that such property was
          delivered to holders of the relevant Telebras Receipt for which such
          property was distributed plus interest on the U.S. dollar amount
          accruing from the date of the delivery until the stated maturity
          date at a fixed interest rate determined as described in (a) above;
          and

     (c)  for any portion of the Telebras Receipt consisting of reference
          securities, the average or arithmetic mean of the closing prices of
          each such reference security determined on each of the first five
          calculation days during the calculation period. If there are fewer
          than five calculation days in the calculation period with respect to
          any reference security, then the ending value shall be calculated
          using the average or arithmetic mean of the closing prices of such
          reference security on such calculation days, and if there is only
          one calculation day, then the ending value shall be calculated using
          the closing price of such reference security on such calculation
          day. If no calculation days occur during the calculation period with
          respect to such reference security, then the ending value shall be
          calculated using the closing price of such reference security
          determined on the last scheduled calculation day in the calculation
          period, regardless of the occurrence of a market disruption event on
          such day.

     "U.S. dollar equivalent" means, with respect to cash not denominated in
U.S. dollars, such cash amount multiplied by the spot rate, defined below, for
the currency in which such cash is denominated at approximately the date of
payment or date of valuation of such cash.

     The "calculation period" means the period from and including the seventh
scheduled calculation day prior to the stated maturity date to and including
the second scheduled calculation day prior to the stated maturity date.

     "calculation day" means any trading day during the calculation period on
which a market disruption event has not occurred.

     "trading day" means a day on which the AMEX, the New York Stock Exchange
or the "NYSE" and the NASDAQ National Market System or "NASDAQ NMS" are open
for trading.

     "market disruption event" means, with respect to a reference security,
the occurrence or existence on any business day during the one-half hour
period that ends when the closing price is determined, of any suspension of,
or limitation imposed on, trading in such reference security on the NYSE (or
other market or exchange, if applicable).

     "closing price" with respect to a reference security means, for a
calculation day the following:

          (a) If the reference security is listed on a national securities
     exchange in the United States, is a NASDAQ NMS security or is included in
     the OTC Bulletin Board Service or OTC Bulletin Board operated by the
     National Association of Securities Dealers, Inc., closing price means:

     (1)  the last reported sale price, regular way, on such day on the
          principal United States securities exchange registered under the
          Exchange Act, on which such reference security is listed or admitted
          to trading, or

     (2)  if not listed or admitted to trading on any such securities exchange
          or if such last reported sale price is not obtainable, the last
          reported sale price on the over-the-counter market as reported on
          the NASDAQ NMS or OTC Bulletin Board on such day, or

     (3)  if the last reported sale price is not available in accordance with
          (1) and (2) above, the mean of the last reported bid and offer price
          on the over-the-counter market as reported on the NASDAQ NMS or OTC
          Bulletin Board on such day as determined by the calculation agent.
          The term "NASDAQ NMS security" includes a security included in any
          successor to such system and the term "OTC Bulletin Board" shall
          include any successor service thereto.

          (b) If such reference security is not listed on a national
     securities exchange in the United States or is not a NASDAQ NMS security
     or included in the OTC Bulletin Board operated by the NASD, closing price
     means the last reported sale price on such day on the securities exchange
     on which such reference security is listed or admitted to trading with
     the greatest volume of trading for the calendar month preceding such day
     as determined by the calculation agent, provided that if such last
     reported sale price is for a transaction which occurred more than four
     hours prior to the close of such exchange, then the closing price shall
     mean the average of the last available bid and offer price on such
     exchange. If such = reference security is not listed or admitted to
     trading on any such securities exchange or if such last
     ================== reported sale price or bid and offer are not
     obtainable, the closing price shall mean the last reported =
     ============= sale price for a transaction which occurred more than four
     hours prior to when trading in such over-the-counter market typically
     ends, then the closing price shall mean the average of the last =
     ============= = available bid and offer prices in such market of the
     three dealers which have the highest volume of transactions in such
     reference security in the immediately preceding calendar month as
     determined by the = ================== calculation agent based on
     information that is reasonably available to it. If such prices are quoted
     in a ================= currency other than in U.S. dollars, such prices
     will be translated into U.S. dollars for purposes of calculating the
     average market price using the spot rate on the same calendar day as the
     date of any = ==================== = ========= such price.

     The "spot rate" on any date will be determined by the calculation agent
and will equal the spot rate of such currency per U.S. $1.00 on such date at
approximately 3:00 p.m., New York City time, as reported by a recognized
reporting service for such spot rate, provided that if the calculation agent
shall determine that such reported rate is not indicative of actual rates of
exchange that may be obtained in the currency exchange rate market, then the
spot rate shall equal the spot rate of such currency per U.S. $1.00 on such
date at approximately 3:00 p.m., New York City time at which the calculation
agent is able to convert such currency into U.S. dollars.

     "business day" means each Monday, Tuesday, Wednesday, Thursday and Friday
that is not a day on which banking institutions in The City of New York are
authorized or obligated by law to close and that is a trading day on the NYSE
and the AMEX.

     All determinations made by the calculation agent are at the sole
discretion of the calculation agent and, absent a determination by the
calculation agent of a manifest error, are conclusive for all purposes and
binding on ML&Co. and beneficial owners of the ProGroS Securities.

Early Call of the ProGroS Securities at the Option of ML&Co.

     During the month of June 2004, the call period, ML&Co., in its sole
discretion, may elect to call the ProGroS Securities offered hereby, in whole
but not in part, before the stated maturity date by giving notice to the
Trustee of ML&Co.'s election on any business day within the month of June
2004, at the call price or $20 per unit.

     If we elect to call your ProGroS Securities before the stated maturity
date, you will receive only the call price and you will not receive a
supplemental redemption amount based on the value of the Telebras Receipt. If
we do not call the ProGroS Securities prior to the stated maturity date, the
principal amount plus the supplemental redemption amount, if any, that you
receive at the stated maturity may be greater than or less than the call
price. ML&Co. may elect to call the ProGroS Securities on any business day
during the call period by giving notice to the Trustee and specifying the date
on which the call price shall be paid. Such Payment Date shall be no later
than the 20th Business Day after such call election. The Trustee will provide
notice of such call election to the registered holders of the ProGroS
Securities, specifying the Payment Date, no less than 15, nor more than 30,
calendar days prior to such Payment Date. While the ProGroS Securities are
held at the Depositary, the registered holder will be the Depositary, and the
Depositary will receive the notice of the call. As more fully described below
under "Description of the ProGroS Securities--Depositary", the Depositary will
forward such notice to its participants which will pass such notice on to the
beneficial owners.

Hypothetical Returns

     The following table illustrates, for a range of hypothetical ending
values,

     o    the percentage change over the starting value;

     o    the total amount payable at the stated maturity date for each $10
          principal amount of ProGroS Securities;
    

     o    the total rate of return to beneficial owners of the ProGroS
          Securities;

   
     o    the pretax annualized rate of return to beneficial owners of ProGroS
          Securities and

     o    the pretax annualized rate of return of the Telebras Receipt.
    

     This table assumes that the ProGroS Securities are not called prior to
the stated maturity date.


<PAGE>


<TABLE>
<CAPTION>


                                               Total Amount                             Pretax            Pretax Rate
                       Percentage Change      Payable at the                          Annualized          of Return of
     Hypothetical           Over the         Stated Maturity        Total Rate          Rate of           the Telebras
     Ending Value        Starting Value       Date per Unit         of Return          Return(1)         Receipt(1)(2)
     ------------        --------------       -------------         ---------          ---------         -------------

<S>                    <C>                   <C>                    <C>               <C>                <C>


       $46.18                 -60.00%                $10.00             0.00%              0.00%               ,10.94%

       $57.72                 -50.00%                $10.00             0.00%              0.00%                ,7.96%

       $69.26                 -40.00%                $10.00             0.00%              0.00%                ,5.48%

       $80.81                 -30.00%                $10.00             0.00%              0.00%                ,3.35%

       $92.35                 -20.00%                $10.00             0.00%              0.00%                ,1.48%

      $103.89                 -10.00%                $10.00             0.00%              0.00%                 0.18%

      $115.44                   0.00%                $10.00             0.00%              0.00%                 1.69%

      $126.98                  10.00%                $11.00            10.00%              1.37%                 3.06%

      $138.53                  20.00%                $12.00            20.00%              2.62%                 4.33%

      $150.07                  30.00%                $13.00            30.00%              3.78%                 5.50%

      $161.61                  40.00%                $14.00            40.00%              4.86%                 6.60%

      $173.16                  50.00%                $15.00            50.00%              5.87%                 7.62%

      $184.70                  60.00%                $16.00            60.00%              6.82%                 8.58%

      $196.24                  70.00%                $17.00            70.00%              7.72%                 9.50%

      $207.79                  80.00%                $18.00            80.00%              8.57%                10.36%

      $219.33                  90.00%                $19.00            90.00%              9.38%                11.18%

      $230.88                 100.00%                $20.00           100.00%             10.14%                11.96%

</TABLE>


   
(1)  The annualized rates of return specified in the preceding table are
     calculated on a semiannual bond equivalent basis.
    

(2)  This rate of return assumes

   
     (a)  a constant dividend yield of 1.69% per annum, paid quarterly from
          the date of initial delivery of ProGroS Securities, applied to the
          value of the Telebras Receipt at the end of each such quarter
          assuming such value increases or decreases linearly from the
          starting value to the applicable hypothetical ending value;
    

     (b)  no transaction fees or expenses;

   
     (c)  a term for the ProGroS Securities from May 19, 1998 to May 19, 2005;
          and

     (d)  a final Telebras Receipt value equal to the ending value.

     The above figures are for purposes of illustration only. The actual
supplemental redemption amount received by investors and the total and pretax
annualized rate of return resulting therefrom will depend entirely on the
actual ending value determined by the calculation agent as provided herein.
    

Dilution and Reorganization Adjustments

   
     The Telebras Receipt is subject to adjustment if an issuer of any
reference security or the custodian in the case of reference security that is
an ADR shall:

     (a)  pay a stock dividend or make a distribution with respect to such
          reference security in reference securities;

     (b)  subdivide or split the outstanding units of such reference security
          into a greater number of units;

     (c)  combine the outstanding units of such reference security into a
          smaller number of units;

     (d)  issue by reclassification of units of such reference security any
          units of another security of such issuer;

     (e)  issue rights or warrants to all holders of such reference security
          entitling them to subscribe for or purchase shares, in the
          aggregate, for more than 5% of the number of such reference
          securities outstanding prior to the issuance of such rights or
          warrants at a price per share less than the then current market
          price of such reference security, other than rights to purchase such
          reference security pursuant to a plan for the reinvestment of
          dividends or interest; or

     (f)  pay a dividend or make a distribution to all holders of such
          reference security of evidences of its indebtedness or other assets
          excluding any stock dividends or distributions referred to in clause
          (a) above or any cash dividends other than any Extraordinary Cash
          Dividend or issue to all holders of such reference security rights
          or warrants to subscribe for or purchase any of its securities,
          other than those referred to in clause (e) above. Any of the
          foregoing assets are referred to as the "Distributed Assets" and any
          of the foregoing events are referred to as the "dilution events".

     Notwithstanding provision (f) in the foregoing sentence, if a reference
security is an ADR and the holder of such ADR would receive cash or other
property other than securities in the circumstances described in (f) above,
but the holder of the securities underlying such ADR could receive securities
as a result of a dilution event or the 'Distributed securities and the
calculation agent or its affiliates would be eligible to receive the
Distributed securities, then ML&Co. can elect for purposes of provision (f) to
include the Distributed securities in the Telebras Receipt instead of the cash
or property distributed to holders of the ADR in an amount equal to the amount
of the Distributed securities that would have been received had the Telebras
Receipt consisted of the securities underlying the ADRs instead of the ADRs.
For purposes of provision (f), if the holder of a reference security can elect
to receive securities in lieu of cash or property other than securities, then
for purposes of provision (f) the holders of the reference security shall be
deemed to receive only the securities.

     In the case of the dilution events referred to in clauses (a), (b), (c)
and (d) above, the Telebras Receipt shall be adjusted to include the number of
units of such reference security and/or security of such issuer which a holder
of units of such reference security would have owned or been entitled to
receive immediately following any such event had such holder held, immediately
prior to such event, the number of units of such reference security
constituting part of the Telebras Receipt immediately prior to such event.
Each such adjustment shall become effective immediately after the effective
date for such subdivision, split, combination or reclassification, as the case
may be. Each such adjustment shall be made successively.

     In the case of the dilution event referred to in clause (e) above where
the rights or warrants are for more than 5% of the number of shares
outstanding prior to the issuance of such rights or warrants, the Telebras
Receipt shall be adjusted by multiplying the number of reference securities
constituting Telebras Receipt immediately prior to the date of issuance of the
rights or warrants referred to in clause (e) above by a fraction,

     o    the numerator of which shall be the number of reference securities
          outstanding on the date immediately prior to such issuance, plus the
          number of additional reference securities offered for subscription
          or purchase pursuant to such rights or warrants, and

     o    the denominator of which shall be the number of reference securities
          outstanding on the date immediately prior to such issuance, plus the
          number of additional reference securities which the aggregate
          offering price of the total number of reference securities so
          offered for subscription or purchase pursuant to such rights or
          warrants would purchase at the current market price determined as
          the average Closing Price per reference security for the 20 Trading
          Days immediately prior to the date of such rights or warrants are
          issued, subject to certain adjustments, which shall be determined by
          multiplying such total number of reference securities by the
          exercise price of such rights or warrants and dividing the product
          so obtained by such current market price.

To the extent that reference securities are not delivered after the expiration
of such rights or warrants, or if such rights or warrants are not issued, the
Telebras Receipt shall be readjusted to the Telebras Receipt which would then
be in effect had such adjustments for the issuance of such rights or warrants
been made upon the basis of delivery of only the number of reference
securities actually delivered.

     In the case of the dilution event referred to in clause (f) above, the
Telebras Receipt shall be adjusted to include, from and after such dividend,
distribution or issuance,

     o    in respect of that portion, if any, of the Distributed Assets
          consisting of cash, the amount of such Distributed Assets consisting
          of cash received for each unit of such reference security multiplied
          by the number of units of such Reference Security constituting part
          of the Telebras Receipt on the date of such dividend, distribution
          or issuance, immediately prior to such dividend, distribution or
          issuance, plus

     o    in respect of that portion, if any, of the Distributed Assets which
          are other than cash, the number or amount of each type of
          Distributed Assets other than cash received with respect to each
          unit of such reference security multiplied by the number of units of
          such reference security constituting part of the Telebras Receipt on
          the date of such dividend, distribution or issuance, immediately
          prior to such dividend, distribution or issuance.

     For example, where a reorganization of Telebras results in the
distribution to holders of the Telebras Receipt of ADRs representing shares of
common stock in various companies formed to operate various spin-off
businesses of Telebras, then the Telebras Receipt shall include such ADRs in
amounts specified pursuant to provision (f) above. If in any such
reorganization of Telebras, holders of Telebras Receipts receive cash or
property while holders of the shares of common stock underlying the Telebras
Receipts receive distributed securities and the calculation agent or an
affiliate can receive and hold the distributed securities, then the
calculation agent can elect to have the Telebras Receipt include the
Distributed securities instead of such cash or property.

     An "extraordinary cash dividend" means, with respect to any consecutive
12-month period, all cash dividends or any other distribution made by the
issuer of a reference security or made pursuant to an arrangement effecting a
distribution of distributable profits or reserves, whether in cash or in
specie, on any reference security occurring in such 12-month period or, if
such reference security was not outstanding at the commencement of such
12-month period or was not then a part of the Telebras Receipt, occurring in
such shorter period during which such reference security was outstanding and
was part of the Telebras Receipt, exceeds on a per share basis 10% of the
average of the closing prices per share of such reference security over such
12-month period or such shorter period during which such reference security
was outstanding and was part of the Telebras Receipt; provided that, for
purposes of the foregoing definition, the amount of cash dividends paid on a
per share basis will be appropriately adjusted to reflect the occurrence
during such period of any stock dividend or distribution of shares of capital
stock of the issuer of such reference security or any subdivision, split,
combination or reclassification of shares of such reference security.

     All adjustments will be calculated to the nearest 1/10,000th of a share
of the reference security or if there is not a nearest 1/10,000th of a share
to the next lower 1/10,000th of a share. No adjustment shall be required
unless such adjustment would require an increase or decrease of at least one
percent in the Closing Price; provided, however, that any adjustments which by
reason of the foregoing are not required to be made shall be carried forward
and taken into account in any subsequent adjustment.

     If any of the Distributed Assets are cash, property or reference
securities that will be distributed only to holders of the relevant Telebras
Receipt who or which can certify as to a certain nationality or formation
under the laws of a certain jurisdiction, as the case may be, and a
corporation formed in the United States or an affiliate of such corporation
formed elsewhere cannot receive such distribution, the Telebras Receipt will
reflect only those distributed assets available for distribution to such
United States corporation or its affiliates.

     In the event of

     (a)  any consolidation or merger of an issuer of a reference security, or
          any surviving entity or subsequent surviving entity of such issuer ,
          a "Successor Company", with or into another entity, other than a
          merger or consolidation in which the issuer is the continuing
          corporation and in which the reference security outstanding
          immediately before the merger or consolidation is not exchanged for
          cash, securities or other property of the issuer or another
          corporation,

     (b)  any sale, transfer, lease or conveyance to another corporation of
          the property of an issuer of a reference security or any Successor
          Company as an entirety or substantially as an entirety,

     (c)  any statutory exchange of securities of an issuer of a reference
          security or any Successor Company with another corporation, other
          than in connection with a merger or acquisition or

     (d)  any liquidation, dissolution, winding up or bankruptcy of an issuer
          of a reference security or any Successor Company, any such event
          described in clause (a), (b), (c) or (d), a "reorganization event",
          the ending value shall be calculated by including the reorganization
          event value.

     The "reorganization event value" shall be determined by the  calculation
agent and shall equal

     o    the transaction value related to the relevant reorganization event,
          plus

     o    interest on such transaction value accruing from the date of the
          payment or delivery of the consideration, if any, received in
          connection with such reorganization event until the stated maturity
          date at a fixed interest rate determined on the date of such payment
          or delivery equal to the interest rate that would be paid on a fixed
          rate senior non-callable debt security of ML&Co. with a term equal
          to the remaining term of the ProGroS Securities.

     The "transaction value" means

     o    for any cash received in any such reorganization event, the amount
          of cash received per unit of reference security,

     o    for any property other than cash or securities received in any such
          reorganization event, an amount equal to the market value of such
          property per unit of reference security on the date that such
          property is received by holders of such reference security as
          determined by the calculation agent, and

     o    for any securities received in any reorganization event, an amount
          equal to the closing price per unit of the securities on the date
          the securities are received by holders of the reference security
          multiplied by the number of such securities received for each unit
          of the reference security subject to adjustment on a basis
          consistent with the adjustment provisions described above.

     The foregoing adjustments are made by MLPF&S, as calculation agent, and
all such adjustments are final.

     No adjustments will be made for other events, such as offerings of
Deposit Reference Shares by Telebras for cash or in connection with
acquisitions.

     ML&Co. will, within ten business days following the occurrence of an
event that requires an adjustment or if ML&Co. is not aware of such
occurrence, as soon as practicable after becoming so aware, provide written
notice to the Trustee, which shall provide notice to the holders of the
ProGroS Securities of the occurrence of such event and, if applicable, a
statement in reasonable detail setting forth the adjusted closing price to be
used in determining the ending value.
    

Events of Default and Acceleration

   
     In case an event of default with respect to any ProGroS Securities has
occurred and is continuing, the amount payable to a beneficial owner of a
ProGroS Security upon any acceleration permitted by the ProGroS Securities,
with respect to each $10 principal amount thereof, will be equal to the
principal amount of the ProGroS Securities and the supplemental redemption
amount, if any, calculated as though the date of early repayment were the
stated maturity date of the ProGroS Securities. See "Description of the
ProGroS Securities,Payment at Maturity" herein. If a bankruptcy proceeding is
commenced in respect of ML&Co., the claim of the beneficial owner of a ProGroS
Security may be limited, under Section 502(b)(2) of Title 11 of the United
States Code, to the principal amount of the ProGroS Security plus an
additional amount of contingent interest calculated as though the date of the
commencement of the proceeding were the stated maturity date of the ProGroS
Securities.

     In case of default in payment of the ProGroS Securities whether at the
call date, at the stated maturity date, or upon acceleration, from and after
the stated maturity date the ProGroS Securities shall bear interest, payable
upon demand of the beneficial owners thereof, at the rate of 6.25% per annum
to the extent that payment of such interest shall be legally enforceable on
the unpaid amount due and payable on such date in accordance with the terms of
the ProGroS Securities to the date payment of such amount has been made or
duly provided for.

Global Securities

     Description of the Global Securities.

     The ProGroS Securities are represented by one or more fully registered
global securities. Each global security has been deposited with, or on behalf
of, The Depository Trust Company or DTC, together with any successor thereto,
being a "depositary", as depositary, registered in the name of Cede & Co.,
DTC's partnership nominee. Unless and until it is exchanged in whole or in
part for ProGroS Securities in definitive form, no global security may be
transferred except as a whole by the depositary to a nominee of the depositary
or by a nominee of the depositary to the depositary or another nominee of the
depositary or by the depositary or any such nominee to a successor of the
depositary or a nominee of that successor.

     So long as DTC, or its nominee, is a registered owner of a global
security, DTC or its nominee, as the case may be, will be considered the sole
owner or holder of the ProGroS Securities represented by a global security for
all purposes under the 1983 indenture. Except as provided below, the
beneficial owners of the ProGroS Securities represented by a global security
are not entitled to have the ProGroS Securities represented by the global
security registered in their names, will not receive or be entitled to receive
physical delivery of the ProGroS Securities in definitive form and are not
considered the owners or holders under the 1983 indenture, including for
purposes of receiving any reports delivered by ML&Co. or the trustee pursuant
to the 1983 indenture. Accordingly, each person owning a beneficial interest
in a global security must rely on the procedures of DTC and, if such person is
not a participant of DTC on the procedures of the participant through which
such person owns its interest, to exercise any rights of a holder under the
1983 indenture. ML&Co. understands that under existing industry practices, in
the event that ML&Co. requests any action of holders or that an owner of a
beneficial interest in such a global security desires to give or take any
action which a holder is entitled to give or take under the 1983 indenture,
DTC would authorize the participants holding the relevant beneficial interests
to give or take such action, and such participants would authorize beneficial
owners owning through such participants to give or take such action or would
otherwise act upon the instructions of beneficial owners. Conveyance of
notices and other communications by DTC to participants, by participants to
indirect participants and by participants and indirect participants to
beneficial owners are governed by arrangements among them, subject to any
statutory or regulatory requirements as may be in effect from time to time.

     DTC Procedures
    

     The following is based on information furnished by DTC:

   
     DTC is the securities depositary for the ProGroS Securities. The ProGroS
Securities have been issued as fully registered securities registered in the
name of Cede & Co., DTC's partnership nominee. One or more fully registered
global securities have been issued for the ProGroS Securities in the aggregate
principal amount of such issue, and has been deposited with DTC.

     DTC is a limited-purpose trust company organized under the New York
Banking Law, a "banking organization" within the meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing corporation"
within the meaning of the New York Uniform Commercial Code, and a "clearing
agency" registered pursuant to the provisions of Section 17A of the 1934 Act.
DTC holds securities that its participants deposit with DTC. DTC also
facilitates the settlement among participants of securities transactions, such
as transfers and pledges, in deposited securities through electronic
computerized book-entry changes in participants' accounts, thereby eliminating
the need for physical movement of securities certificates. Direct participants
of DTC include securities brokers and dealers, banks, trust companies,
clearing corporations and certain other organizations. DTC is owned by a
number of its direct participants and by the NYSE, the AMEX and the NASD.
Access to the DTC's system is also available to others such as securities
brokers and dealers, banks and trust companies that clear through or maintain
a custodial relationship with a direct participant, either directly or
indirectly. The rules applicable to DTC and its participants are on file with
the SEC.

     Purchases of ProGroS Securities under DTC's system must be made by or
through direct participants, which will receive a credit for the ProGroS
Securities on DTC's records. The ownership interest of each beneficial owner
is in turn to be recorded on the records of direct and indirect participants.
Beneficial owners will not receive written confirmation from DTC of their
purchase, but beneficial owners are expected to receive written confirmations
providing details of the transaction, as well as periodic statements of their
holdings, from the direct participants or indirect participants through which
such beneficial owner entered into the transaction. Transfers of ownership
interests in the ProGroS Securities are to be accomplished by entries made on
the books of participants acting on behalf of beneficial owners.

     To facilitate subsequent transfers, all ProGroS Securities deposited with
DTC are registered in the name of DTC's partnership nominee, Cede & Co. The
deposit of ProGroS Securities with DTC and their registration in the name of
Cede & Co. effect no change in beneficial ownership. DTC has no knowledge of
the actual beneficial owners of the ProGroS Securities; DTC's records reflect
only the identity of the direct participants to whose accounts the ProGroS
Securities are credited, which may or may not be the beneficial owners. The
participants are responsible for keeping account of their holdings on behalf
of their customers.

     Conveyance of notices and other communications by DTC to direct
participants, by direct participants to indirect participants, and by direct
and indirect participants to beneficial owners are governed by arrangements
among them, subject to any statutory or regulatory requirements as may be in
effect from time to time.

     Neither DTC nor Cede & Co. will consent or vote with respect to the
ProGroS Securities. Under its usual procedures, DTC mails an omnibus proxy to
ML&Co. as soon as possible after the applicable record date. The omnibus proxy
assigns Cede & Co.'s consenting or voting rights to those direct participants
to whose accounts the ProGroS Securities are credited on the record date,
identified in a listing attached to the omnibus proxy.

     Principal, premium, if any, and/or interest, if any, payments on the
ProGroS Securities will be made in immediately available funds to DTC. DTC's
practice is to credit direct participants' accounts on the applicable payment
date in accordance with their respective holdings shown on the Depositary's
records unless DTC has reason to believe that it will not receive payment on
such date. Payments by participants to beneficial owners will be governed by
standing instructions and customary practices, as is the case with securities
held for the accounts of customers in bearer form or registered in "street
name", and will be the responsibility of such participant and not of DTC, the
trustee or ML&Co., subject to any statutory or regulatory requirements as may
be in effect from time to time. Payment of principal, premium, if any, and/or
interest, if any, to DTC is the responsibility of ML&Co. or the Trustee,
disbursement of such payments to direct participants is the responsibility of
DTC, and disbursement of such payments to the beneficial owners is the
responsibility of direct and indirect participants.

     Exchange for Certificated Securities

     If the depositary is at any time unwilling or unable to continue as
depositary and

     (a)  a successor depositary is not appointed by ML&Co. within 60 days,

     (b)  ML&Co. executes and delivers to the trustee a company order to the
          effect that the global securities shall be exchangeable, and

     (c)  an Event of Default under the 1983 indenture has occurred and is
          continuing with respect to the ProGroS Securities, 

the global securities will be exchangeable for ProGroS Securities in
definitive form of like tenor and of an equal aggregate principal amount, in
denominations of $10 and integral multiples thereof. The definitive ProGroS
Securities will be registered in such name or names as the Depositary shall
instruct the Trustee. It is expected that such instructions may be based upon
directions received by the Depositary from participants with respect to
ownership of beneficial interests in the global securities.

     In addition, ML&Co. may decide to discontinue use of the system of
book-entry transfers through the Depositary. In that event, ProGroS Security
in definitive form will be printed and delivered.

     The information in this section concerning DTC and DTC's system has been
obtained from sources that ML&Co. believes to be reliable, but ML&Co. takes no
responsibility for its accuracy .
    

Same-Day Payment

   
     All payments of principal and the supplemental redemption amount, and
call price if any, and will be made by ML&Co. in immediately available funds
so long as the ProGroS Securities are maintained in book-entry form.
    


<PAGE>


                             THE TELEBRAS RECEIPT

Telecomunicagoes Brasileiras S.A.-Telebras

   
     Telecomunicagoes Brasileiras S.A.-Telebras was the primary supplier of
public telecommunications services in Brazil. Telebras owned and operated all
of the inter-state and international telephone transmission facilities in
Brazil, and was the primary provider of intra-state service and provides
telephone-related services such as data transmission, cellular mobile
telephone service, and sound, image, videotext and telex transmission.

     In 1998, Telebras was privatized by the federal government of Brazil and
reorganized into 12 separate corporations . These spin-offs resulted in the
distribution to holders of a Telebras Receipt of cash, securities and other
property, including common stock and/or warrants to purchase common stock in
the new corporations. An investor in the ProGroS Securities should carefully
review the adjustments to be made in the case of these reorganization events
contained in "--Dilution and Reorganization Adjustments."

     Before the reorganization, Telebras was subject to the informational
requirements of the Exchange Act. Accordingly, Telebras filed reports, proxy
and other information statements and other information with the SEC. There is
no assurance that the 12 separate corporations that previously made up
Telebras will be subject to the informational requirements of the Exchange Act
or make any information relating to their business widely or publicly
available. In the event that this information, if any, is not widely or
publicly available during the term of the ProGroS Securities, pricing
information for the ProGroS Securities may be more difficult to obtain and the
value and liquidity of the ProGroS Securities may be adversely affected.

     ML&Co. is not affiliated with Telebras and Telebras has no obligations
with respect to the Progros securities. This prospectus relates only to the
Progros securities offered hereby and does not relate to the Telebras receipt
or other securities of Telebras. The information contained in this prospectus
regarding Telebras has been derived from the publicly available documents
described in the preceding paragraph. ML&Co. Has not participated in the
preparation of such documents or made any due diligence inquiries with respect
to Telebras in connection with the initial offering of the Progros securities.
ML&Co. Makes no representation that such publicly available documents or any
other publicly available information regarding Telebras are accurate or
complete. Furthermore, there can be no assurance that all events occurring
prior to the date hereof, including events that would affect the accuracy or
completeness of the publicly available documents described in the preceding
paragraph, that would affect the trading price of the Telebras receipt have
been publicly disclosed. Subsequent disclosure of any such events or the
disclosure of or failure to disclose material future events concerning
Telebras could affect the supplemental redemption amount to be received at the
stated maturity date and therefore the trading value of the progros
securities.

     From time to time, in the ordinary course of business, affiliates of
ML&Co. engaged in certain investment banking activities on behalf of the
Telebras as well as served as counterparty in certain other transactions.
    


<PAGE>


                                  OTHER TERMS

   
     ML&Co. issued the ProGroS Securities as a series of senior debt
securities under the 1983 Indenture, dated as of April 1, 1983, as amended and
restated, between ML&Co. and The Chase Manhattan Bank, as trustee. A copy of
the 1983 Indenture is filed as an exhibit to the registration statement
relating to the MITTS Securities of which this prospectus is a part. The
following summaries of the material provisions of the 1983 Indenture are not
complete and are subject to, and qualified in their entirety by reference to,
all provisions of the 1983 Indenture, including the definitions of terms in
the 1983 Indenture .

     ML&Co. may issue series of senior debt securities from time to time under
the 1983 Indenture, without limitation as to aggregate principal amount, in
one or more series and upon terms as ML&Co. may establish under the provisions
of the 1983 Indenture.

     The 1983 Indenture and the ProGroS Securities are governed by and
construed in accordance with the laws of the State of New York.

     ML&Co. may issue senior debt securities with terms different from those
of senior debt securities previously issued, and issue additional senior debt
securities of a previously issued series of senior debt securities.

     The senior debt securities are unsecured and rank equally with all other
unsecured and unsubordinated indebtedness of ML&Co. However, because ML&Co. is
a holding company, the rights of ML&Co. and its creditors, including the
holders of senior debt securities, to participate in any distribution of the
assets of any subsidiary upon its liquidation or reorganization or otherwise
are necessarily subject to the prior claims of creditors of the subsidiary,
except to the extent that a bankruptcy court may recognize claims of ML&Co.
itself as a creditor of the subsidiary . In addition, dividends, loans and
advances from certain subsidiaries, including MLPF&S, to ML&Co. are restricted
by net capital requirements under the Exchange Act, and under rules of
exchanges and other regulatory bodies.

Limitations Upon Liens

     ML&Co. may not, and may not permit any majority-owned subsidiary to,
create, assume, incur or permit to exist any indebtedness for borrowed money
secured by a pledge, lien or other encumbrance, other than those liens
specifically permitted by the 1983 Indenture, on the Voting Stock owned
directly or indirectly by ML&Co. of any majority-owned subsidiary, other than
a majority-owned subsidiary which, at the time of the incurrence of the
secured indebtedness, has a net worth of less than $3,000,000, unless the
outstanding senior debt securities are secured equally and ratably with the
secured indebtedness.

     "Voting Stock" is defined in the 1983 Indenture as the stock of the class
or classes having general voting power under ordinary circumstances to elect
at least a majority of the board of directors, managers or trustees of a
corporation provided that, for the purposes of the 1983 Indenture, stock that
carries only the right to vote conditionally on the occurrence of an event is
not considered voting stock whether or not the event has happened.

Limitation  on Disposition of Voting Stock of, and Merger and Sale of Assets by,
MLPF&S

     ML&Co. may not sell, transfer or otherwise dispose of any voting stock of
MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of its
Voting Stock, unless, after giving effect to any such transaction, MLPF&S
remains a Controlled Subsidiary.

     "Controlled Subsidiary" is defined in the 1983 Indenture to mean a
corporation more than 80% of the outstanding shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

     In addition, ML&Co. may not permit MLPF&S to:

     o    merge or consolidate, unless the surviving company is a Controlled
          Subsidiary, or
    

     o    convey or transfer its properties and assets substantially as an
          entirety, except to one or more Controlled Subsidiaries.

Merger and Consolidation

   
     ML&Co. may consolidate or merge with or into any other corporation and
ML&Co. may sell, lease or convey all or substantially all of its assets to any
corporation, provided that:

     o    the resulting corporation, if other than ML&Co., is a corporation
          organized and existing under the laws of the United States of
          America or any U.S. state and assumes all of ML&Co.'s obligations
          to:

          o    pay any amounts due and payable or deliverable with respect to
               all the senior debt securities; and

          o    perform and observe all of ML&Co.'s obligations under the 1983
               Indenture, and

     o    ML&Co. or the successor corporation, as the case may be, is not,
          immediately after any consolidation or merger, in default under the
          1983 Indenture.
    

Modification and Waiver

   
     ML&Co. and the trustee may modify and amend the 1983 Indenture with the
consent of holders of at least 66 2/3% in principal amount of each outstanding
series of senior debt securities affected. However, without the consent of
each holder of any outstanding senior debt security affected, no amendment or
modification to the 1983 Indenture may:

     o    change the stated maturity date of the principal of, or any
          installment of interest or Additional Amounts payable on, any senior
          debt security or any premium payable on redemption , or change the
          redemption price;

     o    reduce the principal amount of, or the interest or Additional
          Amounts payable on, any senior debt security or reduce the amount of
          principal which could be declared due and payable before the stated
          maturity date;

     o    change the place or currency of any payment of principal or any
          premium, interest or Additional Amounts payable on any senior debt
          security;

     o    impair the right to institute suit for the enforcement of any
          payment on or with respect to any senior debt security;

     o    reduce the percentage in principal amount of the outstanding senior
          debt securities of any series, the consent of whose holders is
          required to modify or amend the 1983 Indenture; or

     o    modify the foregoing requirements or reduce the percentage of
          outstanding senior debt securities necessary to waive any past
          default to less than a majority.

     No modification or amendment of ML&Co.'s Subordinated Indenture or any
Subsequent Indenture for subordinated debt securities may adversely affect the
rights of any holder of ML&Co.'s senior indebtedness without the consent of
each holder affected. The holders of at least a majority in principal amount
of outstanding senior debt securities of any series may, with respect to that
series, waive past defaults under the 1983 Indenture and waive compliance by
ML&Co. with provisions in the 1983 Indenture, except as described under
"--Events of Default".

Events of Default

     Each of the following will be Events of Default with respect to senior
debt securities of any series:

     o    default in the payment of any interest or Additional Amounts payable
          when due and continuing for 30 days;

     o    default in the payment of any principal or premium when due;

     o    default in the deposit of any sinking fund payment, when due;

     o    default in the performance of any other obligation of ML&Co.
          contained in the 1983 Indenture for the benefit of that series or in
          the senior debt securities of that series, continuing for 60 days
          after written notice as provided in the 1983 Indenture;

     o    specified events in bankruptcy, insolvency or reorganization of
          ML&Co.; and

     o    any other Event of Default provided with respect to senior debt
          securities of that series which are not inconsistent with the 1983
          Indenture.

If an Event of Default occurs and is continuing for any series of senior debt
securities, other than as a result of the bankruptcy, insolvency or
reorganization of ML&Co., the trustee or the holders of at least 25% in
principal amount of the outstanding senior debt securities of that series may
declare all amounts, or any lesser amount provided for in the senior debt
securities, due and payable or deliverable immediately. At any time after a
declaration of acceleration has been made with respect to senior debt
securities of any series but before the trustee has obtained a judgment or
decree for payment of money, the holders of a majority in principal amount of
the outstanding senior debt securities of that series may rescind any
declaration of acceleration and its consequences, if all payments due, other
than those due as a result of acceleration, have been made and all Events of
Default have been remedied or waived.

     The holders of a majority in principal amount or aggregate issue price of
the outstanding senior debt securities of that series may waive any Event of
Default with respect to that series, except a default:

     o    in the payment of any amounts due and payable or deliverable under
          the debt securities of that series; or

     o    in respect of an obligation or provision of the 1983 Indenture which
          cannot be modified under the terms of that Indenture without the
          consent of each holder of each outstanding security of each series
          of senior debt securities affected.

     The holders of a majority in principal amount of the outstanding senior
debt securities of a series may direct the time, method and place of
conducting any proceeding for any remedy available to the trustee or
exercising any trust or power conferred on the trustee with respect to those
senior debt securities, provided that any direction shall not be in conflict
with any rule of law or the 1983 Indenture. Before proceeding to exercise any
right or power under the 1983 Indenture at the direction of the holders, the
trustee shall be entitled to receive from the holders reasonable security or
indemnification against the costs, expenses and liabilities which might be
incurred by it in complying with any direction.

     The ProGroS Securities and other series of senior debt securities issued
under the 1983 Indenture do not have the benefit of any cross-default
provisions with other indebtedness of ML&Co.

     ML&Co. is required to furnish to the trustee annually a statement as to
the fulfillment by ML&Co. of all of its obligations under the 1983 Indenture.

                      WHERE YOU CAN FIND MORE INFORMATION

     We file reports, proxy statements and other information with the SEC. Our
SEC filings are also available over the Internet at the SEC's web site at
http://www.sec.gov. You may also read and copy any document we file by
visiting the SEC's public reference rooms in Washington, D.C., New York, New
York, and Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further
information about the public reference rooms. You may also inspect our SEC
reports and other information at the New York Stock Exchange, Inc., 20 Broad
Street, New York, New York 10005.

     We have filed a registration statement on Form S-3 with the SEC covering
the ProGroS Securities and other securities. For further information on ML&Co.
and the ProGroS Securities, you should refer to our registration statement and
its exhibits. This prospectus summarizes material provisions of contracts and
other documents that we refer you to. Because the prospectus may not contain
all the information that you may find important, you should review the full
text of these documents. We have included copies of these documents as
exhibits to our registration statement of which this prospectus is a part.

               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

     The SEC allows us to incorporate by reference the information we file
with them, which means:

     o    incorporated documents are considered part of the prospectus;

     o    we can disclose important information to you by referring you to
          those documents; and

     o    information that we file with the SEC will automatically update and
          supersede this incorporated information.

     We incorporate by reference the documents listed below which were filed
with the SEC under the Exchange Act:

     o    annual report on Form 10-K for the year ended December 25, 1998; and

     o    current reports on Form 8-K dated December 28, 1998, January 19,
          1999, February 17, 1999, February 18, 1999, February 22, 1999,
          February 23, 1999 and March 26, 1999.

         We also incorporate by reference each of the following documents that
we will file with the SEC after the date of this prospectus until this
offering is completed or after the date of this initial registration statement
and before the effectiveness of the registration statement:

     o    reports filed under Sections 13(a) and (c) of the Exchange Act;

     o    definitive proxy or information statements filed under Section 14 of
          the Exchange Act in connection with any subsequent stockholders'
          meeting; and

     o    any reports filed under Section 15(d) of the Exchange Act.

     You should rely only on information contained or incorporated by
reference in this prospectus. We have not, and MLPF&S has not, authorized any
other person to provide you with different information. If anyone provides you
with different or inconsistent information, you should not rely on it. We are
not, and MLPF&S is not, making an offer to sell these securities in any
jurisdiction where the offer or sale is not permitted.

     You should assume that the information appearing in this prospectus is
accurate as of the date of this prospectus only. Our business, financial
condition and results of operations may have changed since that date.

     You may request a copy of any filings referred to above (excluding
exhibits), at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan, Jr., Corporate Secretary's Office, Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.

                             PLAN OF DISTRIBUTION

     This prospectus has been prepared in connection with secondary sales of
the ProGroS Securities and is to be used by MLPF&S when making offers and
sales related to market-making transactions in the ProGroS Securities.

     MLPF&S may act as principal or agent in these market-making transactions.

     The ProGroS Securities may be offered on the AMEX or off the exchange in
negotiated transactions or otherwise.

     The distribution of the ProGroS Securities will conform to the
requirements set forth in the applicable sections of Rule 2720 of the Conduct
Rules of the NASD.
    

                                    EXPERTS

   
     The consolidated financial statements and the related financial statement
schedule incorporated in this prospectus by reference from the Annual Report on
Form 10-K of Merrill Lynch & Co., Inc. and subsidiaries have been audited by
Deloitte & Touche LLP, independent auditors, as stated in their reports (which
express an unqualified opinion and which report on the consolidated financial
statements includes an explanatory paragraph for the change in accounting method
for certain internal-use software development costs), which are incorporated
herein by reference, and have been so incorporated in reliance upon the reports
of such firm given upon their authority as experts in accounting and auditing.
    

<PAGE>
   
The information in this prospectus is not complete and may be changed. We may
not sell these securities until the registration statement filed with the
Securities and Exchange Commission is effective. This prospectus is not an
offer to sell these securities and it is not soliciting an offer to buy these
securities in any state where the offer or sale is not permitted.
    


   
                             Subject to Completion
                  Preliminary Prospectus dated March 29, 1999


PROSPECTUS 
    

                           Merrill Lynch & Co., Inc.
   
     Oracle Corporation Indexed Callable Protected GrowthSM Securities 
                                due March 31, 2003
                            "ProGroSSM Securities"
                         $10 principal amount per unit

     This prospectus is to be used by Merrill Lynch & Co., Merrill Lynch,
Pierce, Fenner & Smith Incorporated, our wholly-owned subsidiary, when making
offers and sales related to market-making transactions in the ProGros
Securities.

<TABLE>
<CAPTION>

<S>                                                         <C> 

 The ProGroS Securities:                                    Payment at Maturity:

o  100% principal protected if held to maturity             o  On the maturity date, for each unit of the ProGroS
                                                               Securities you own, we will pay you an amount equal
o  Callable before the stated maturity date by Merrill         to the sum of the principal amount of each unit and
   Lynch & Co., Inc.                                           an additional amount based on the percentage
                                                               increase, if any, in the price of a share of the
o  No payments before the stated maturity date unless          in the price of a share of the common stock of Oracle
   called by Merrill Lynch & Co., Inc.                         Corporation above a value of $29.1875.

o  Senior unsecured debt securities of Merrill Lynch &      o  You will receive no  less than the principal amount
   Co., Inc.                                                   of your ProGroS Securities.

o  The ProGroS Securities are listed on the American
   Stock Exchange under the trading symbol "OPG".

</TABLE>

              Investing in the ProGroS Securities involves risks.
                    See "Risk Factors" beginning on page 3


     Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if of
this prospectus is truthful or complete. Any representation to the contrary is
a criminal offense.
         
    
                               ----------------

                              Merrill Lynch & Co.
                               ----------------

   
                The date of this prospectus is        , 199 .


     "Protected Growth" and "ProGroS" are registered service marks of Merrill
Lynch & Co., Inc.
    


<PAGE>


   
                               TABLE OF CONTENTS
                                                                          Page

Risk Factors.................................................................2

Merrill Lynch & Co., Inc.....................................................6

Ratio of Earnings to Fixed Charges...........................................7

Description of ProGroS Securities............................................8

Oracle Common Stock.........................................................16

Other Terms.................................................................16

Where You Can Find More Information.........................................19

Incorporation of Information We File With the SEC...........................20

Plan of Distribution........................................................21

Experts.....................................................................21
    


<PAGE>


                                 RISK FACTORS

   
     Your investment in the ProGroS Securities will involve risks. You should
carefully consider the following discussion of risks before deciding whether
an investment in the ProGroS Securities is suitable for you.

We may redeem the ProGroS Securities  before the stated maturity date

     We may elect to redeem all of the ProGroS Securities in the manner and
times described in this prospectus. We are likely to call the ProGroS
Securities during a period when the secondary market price of the ProGroS
Securities is approximately equal to the applicable redemption price. We can,
however, call the ProGroS Securities during the specified periods described in
this prospectus at our option regardless of the secondary market price of the
ProGroS Securities. In the event that we elect to call the ProGroS Securities,
you will receive only the relevant redemption price and no additional amount
based on the price of the common stock of Oracle Corporation.

You may not earn a return on your investment

     You should be aware that if the ending value of Oracle common stock,
determined as described in this prospectus, does not exceed $29.1875, the
closing price of Oracle common stock on the date the ProGroS Securities were
initially priced for sale to the public, at the stated maturity, you will only
receive the principal amount of your ProGroS Securities. This will be true
even if the value of Oracle common stock, at some time during the life of the
ProGroS Securities, was higher than $29.1875 but later falls below $29.1875.

     You should compare the features of the ProGroS Securities to other
available investments before deciding to purchase the ProGroS Securities. Due
to the uncertainty as to whether the ProGroS Securities will earn a return or
be redeemed before the stated maturity date, the returns which you may receive
with respect to the ProGroS Securities may be higher or lower than the returns
available on other investments. You should reach an investment decision only
after carefully considering the suitability of the ProGroS Securities in light
of your particular circumstances.
    

Your yield may be lower than the yield on a standard debt security of comparable
maturity

   
     The amount we pay you at maturity may be less than the return you could
earn on other investments. Your yield may be less than the yield you would
earn if you bought a standard senior non-callable debt security of Merrill
Lynch & Co., Inc. with the same stated maturity date. Your investment may not
reflect the full opportunity cost to you when you consider the effect of
factors that affect the time value of money.
    

Your return will not reflect the payment of dividends

   
     The calculation of the starting and ending values of the Oracle common
stock does not take into consideration the value of dividends paid on that
stock, if any. Therefore, the return you earn on the ProGroS Securities, if
any, will not be the same as the return that you would earn if you actually
owned shares of Oracle common stock and received any dividends paid on that
stock.

There may be an uncertain trading market for the ProGroS Securities in the
future

     Although the ProGroS Securities are listed on the AMEX under the symbol
"OPG", you cannot assume that a trading market will continue to exist for the
ProGroS Securities. If a trading market in the ProGroS Securities continues to
exist, you cannot assume that there will be liquidity in that trading market.
The continued existence of a trading market for the ProGroS Securities will
depend on our financial performance and other factors such as the
appreciation, if any, of the price of Oracle common stock.

     If the trading market for the ProGroS Securities is limited, there may be
a limited number of buyers if you decide to sell your ProGroS Securities. This
may affect the price you receive. Furthermore, it is unlikely that the
secondary market price of the ProGroS Securities will correlate exactly with
the market price of the Oracle common stock.

There are many factors affecting trading value of the ProGroS Securities

     Our ability to call the ProGroS Securities before their stated maturity
date is likely to limit the secondary market price at which the ProGroS
Securities will trade. In particular, we expect that the secondary market
price of the ProGroS Securities generally will not exceed the applicable
redemption price because of our ability to call the ProGroS Securities and pay
only that redemption price. We believe that if we did not have the right to
call the ProGroS Securities, the secondary market price of the ProGroS
Securities would likely be significantly different.

     We believe that the market value of the ProGroS Securities will be
affected by the price of Oracle common stock and by a number of other factors
in addition to our ability to call the ProGroS Securities before their stated
maturity date. Some of these factors are interrelated in complex ways; as a
result, the effect of any one factor may be offset or magnified by the effect
of another factor. The following paragraphs describe the expected impact on
the market value of the ProGroS Securities given a change in a specific
factor, assuming all other conditions remain constant.

     o    Value of Oracle Common Stock. We expect that the market value of the
          ProGroS Securities will depend on the amount by which the price of
          Oracle common stock exceeds $29.1875, the value of Oracle common
          stock on the date the ProGroS Securities were initially priced for
          sale to the public. If you choose to sell your ProGroS Securities
          when the price of Oracle common stock exceeds$29.1875, you may
          receive substantially less than the amount that would be payable at
          the stated maturity date based on that price because of the
          expectation that the price of Oracle common stock will continue to
          fluctuate until its final value as described in this prospectus is
          determined.

     o    If you choose to sell your ProGroS Securities when the price of
          Oracle common stock is below $29.1875, you may receive less than the
          principal amount of your ProGroS Securities. As of the date of this
          prospectus, Oracle has not paid dividends on its common stock. As a
          general matter, if dividends are ever paid on Oracle common stock, a
          rising dividend rate, i.e., dividends per share, may increase the
          price of Oracle common stock while a falling dividend rate may
          decrease its price . Political, economic and other developments may
          also affect the price of Oracle common stock and the value of the
          ProGroS Securities.

     o    Interest Rates. We expect that the trading value of the ProGroS
          Securities will be affected by changes in interest rates. As a
          general matter during the earlier years of the ProGroS Securities,
          if U.S. interest rates increase, we expect that the trading value of
          the ProGroS Securities will decrease and if U.S. interest rates
          decrease, we expect the trading value of the ProGroS Securities will
          increase. However, interest rates may also affect the economy and,
          in turn, the price of Oracle common stock. Rising interest rates may
          lower the price of Oracle common stock and the ProGroS Securities.
          Falling interest rates may increase the value of Oracle common stock
          and the value of the ProGroS Securities.

     o    Volatility of Oracle common stock. Volatility is the term used to
          describe the size and frequency of market fluctuations. If the
          volatility of Oracle common stock increases, we expect that the
          trading value of the ProGroS Securities will increase. If the
          volatility of Oracle common stock decreases, we expect that the
          trading value of the ProGroS Securities will decrease.

     o    Time Remaining to Stated Maturity Date. The ProGroS Securities may
          trade at a value above that which would be expected based on the
          level of interest rates and the price of Oracle common stock. This
          difference will reflect a "time premium" due to expectations
          concerning the price of Oracle common stock during the period prior
          to the stated maturity date of the ProGroS Securities. However, as
          the time remaining to the stated maturity date of the ProGroS
          Securities decreases, we expect that this time premium will
          decrease, potentially lowering the trading value of the ProGroS
          Securities.

     o    Dividend Yield. If dividends are ever paid on Oracle common stock,
          the dividend yield that would result would likely affect the value
          of the ProGroS Securities. If the dividend yield on Oracle common
          stock were to increase, we expect that the value of the ProGroS
          Securities would decrease. Conversely, if the dividend yield on
          Oracle common stock were to decrease, we expect that the value of
          the ProGroS Securities would increase.

     o    Changes in our credit ratings. Our credit ratings are an assessment
          of our ability to pay our obligations. Consequently, real or
          anticipated changes in our credit ratings may affect the trading
          value of the ProGroS Securities. However, because your return on
          your ProGroS Securities is dependent upon factors in addition to our
          ability to pay our obligations under the ProGroS Securities, such as
          the percentage increase in the value of Oracle common stock at
          maturity, an improvement in our credit ratings will not reduce
          investment risks related to the ProGroS Securities

     It is important for you to understand that the impact of one of the
factors specified above, such as an increase in interest rates, may offset
some or all of any increase in the trading value of the ProGroS Securities
attributable to another factor, such as an increase in the price of Oracle
common stock.

     In general, assuming all relevant factors are held constant, we expect
that the effect on the trading value of the ProGroS Securities of a given
change in most of the factors listed above will be less if it occurs later in
the term of the ProGroS Securities than if it occurs earlier in the term of
the ProGroS Securities except that we expect that the effect on the trading
value of the ProGroS Securities of a given increase in the value of Oracle
common stock will be greater if it occurs later in the term of the ProGroS
Securities than if it occurs earlier in the term of the ProGroS Securities.

You will not have any stockholder's rights with respect to the Oracle common
stock

     Beneficial owners of the ProGroS Securities are not entitled to any
rights with respect to Oracle common stock, including, voting rights and
rights to receive any dividends or other distributions in respect of that
stock.

No affiliation between  ML&Co. and Oracle Corporation

     ML&Co. has no affiliation with Oracle Corporation, and Oracle Corporation
has no obligations with respect to the ProGroS Securities or amounts to be
paid to you, including any obligation to take the needs of ML&Co. or of
beneficial owners of the ProGroS Securities into consideration for any reason.
Oracle Corporation did not receive any of the proceeds of the initial offering
of the ProGroS Securities and is not responsible for, and has not participated
in, the determination or calculation of the amount receivable by beneficial
owners of the ProGroS Securities on the stated maturity date or upon an
earlier redemption. In addition, Oracle Corporation is not involved with the
administration or trading of the ProGroS Securities.

There may be state law limits on  the payment of amounts payable on the ProGroS
Securities

     New York State law governs the indenture under which the ProGroS
Securities are issued. New York has usury laws that limit the amount of
interest that can be charged and paid on loans, which includes debt securities
like the ProGroS Securities. Under present New York law, the maximum rate of
interest is 25% per annum on a simple interest basis. This limit may not apply
to debt securities in which $2,500,000 or more has been invested.
    

     While we believe that New York law would be given effect by a state or
Federal court sitting outside of New York, many other states also have laws
that regulate the amount of interest that may be charged to and paid by a
borrower. We will promise, for the benefit of the ProGroS Securities holders,
to the extent permitted by law, not to voluntarily claim the benefits of any
laws concerning usurious rates of interest.

   
Purchases and sales by  us and our affiliates may affect your return

     We and our affiliates may from time to time buy or sell Oracle common
stock for our own accounts for business reasons or in connection with hedging
our obligations under the ProGroS Securities. These transactions could affect
the price of Oracle common stock and the return on your ProGroS Securities.
    

Potential conflicts

   
     The calculation agent, Merrill Lynch, Pierce, Fenner & Smith Incorporated
or MLPF&S, is our subsidiary. Under some circumstances, MLPF&S's role as our
subsidiary and its responsibilities as calculation agent for the ProGroS
Securities could give rise to conflicts of interests. You should be aware that
because we control the calculation agent, potential conflicts of interest
could arise.
    

Other Considerations

   
     You should also consider the tax consequences of investing in the ProGroS
Securities and should consult your tax advisor.
    


<PAGE>


   
                           MERRILL LYNCH & CO., INC.

     We are a holding company that, through our U.S. and non-U.S. subsidiaries
and affiliates such as Merrill Lynch, Pierce, Fenner & Smith Incorporated,
Merrill Lynch Government Securities Inc., Merrill Lynch Capital Services,
Inc., Merrill Lynch International, Merrill Lynch Capital Markets Bank Ltd.,
Merrill Lynch Asset Management L.P. and Merrill Lynch Mercury Asset
Management, provides investment, financing, advisory, insurance, and related
products on a global basis, including:

     o    securities brokerage, trading and underwriting;

     o    investment banking, strategic services, including mergers and
          acquisitions and other corporate finance advisory activities;

     o    asset management and other investment advisory and recordkeeping
          services;

     o    trading and brokerage of swaps, options, forwards, futures and other
          derivatives;

     o    securities clearance services;

     o    equity, debt and economic research;

     o    banking, trust and lending services, including mortgage lending and
          related services; and

     o    insurance sales and underwriting services.

     We provide these products and services to a wide array of clients,
including individual investors, small businesses, corporations, governments,
governmental agencies and financial institutions.

     Our principal executive office is located at World Financial Center,
North Tower, 250 Vesey Street, New York, New York 10281; our telephone number
is (212) 449-1000.

     If you want to find more information about us, please see the sections
entitled "Where You Can Find More Information" and "Incorporation of
Information We File with the SEC" in this prospectus.

     In this prospectus, "ML&Co.", "we", "us" and "our" refer specifically to
Merrill Lynch & Co., Inc., the holding company. ML&Co. is the issuer of the
ProGroS Securities described in this prospectus.
    


<PAGE>


   
                      RATIO OF EARNINGS TO FIXED CHARGES

     In 1998, we acquired the outstanding shares of Midland Walwyn, Inc., in a
transaction accounted for as a pooling-of-interests. The following information
for the fiscal years 1994 through 1997 has been restated as if the two
entities had always been combined.

     The following table sets forth our historical ratios of earnings to fixed
charges for the periods indicated:



                                          Year Ended Last Friday in December
                                        1994     1995     1996     1997     1998
                                        ----------------------------------------

Ratio of earnings to fixed charges(a)   1.2      1.2      1.2      1.2      1.1
- ----------
(a)   The effect of combining Midland Walwyn did not change the ratios reported
      for the fiscal years 1994 through 1997.

     For the purpose of calculating the ratio of earnings to fixed charges,
"earnings" consist of earnings from continuing operations before income taxes
and fixed charges, excluding capitalized interest and preferred security
dividend requirements. "Fixed charges" consist of interest costs, the interest
factor in rentals, amortization of debt issuance costs, preferred security
dividend requirements of subsidiaries, and capitalized interest.
    

<PAGE>


                       DESCRIPTION OF PROGROS SECURITIES

   
     The ProGroS Securities were issued as a series of Senior debt securities
under the 1983 indenture which is more fully described in this prospectus.

     The ProGroS Securities will mature on March 31, 2003 unless called
earlier at the option of ML&Co.

     Unless called, while at maturity a beneficial owner will receive the
principal amount of each ProGroS Security plus the Supplemental Redemption
Amount described below, if any, there will be no other payment of interest,
periodic or otherwise. See "-Payment at Maturity" below.

     The ProGroS Securities may be called by ML&Co. as described below, but
are not subject to redemption at the option of any beneficial owner before the
stated maturity date. Upon the occurrence of an Event of Default with respect
to the ProGroS Securities, beneficial owners of the ProGroS Securities may
accelerate the maturity of the ProGroS Securities, as described under "-Events
of Default and Acceleration" and "Other Terms-Events of Default" in this
prospectus.

     The ProGroS Securities were issued in denominations of whole units.
    

Payment at Maturity

   
     At the stated maturity date, a beneficial owner of a ProGroS Security
will be entitled to receive the principal amount of each unit plus a
Supplemental Redemption Amount, if any, all as provided below. If the
Supplemental Amount is not greater than zero, a beneficial owner of a ProGroS
Security will be entitled to receive only the principal amount of its ProGroS
Securities.

     The "supplemental redemption amount" for a ProGroS Security will be
determined by the calculation agent and will equal:
    

<TABLE>
<CAPTION>

<S>                                                        <C>

principal amount of each proGroS Security ($10 per unit) x (Ending Value - Starting Value)
                                                           -------------------------------
                                                                  Starting Value

</TABLE>

   
provided, however, that in no event will the supplemental redemption amount be
less than zero.

     The "starting value" equals $29.1875.

     The "ending value" will be determined by the calculation agent and will
equal the arithmetic average or arithmetic mean of the last prices of Oracle
common stock determined on each of the first five calculation days during the
calculation period. If there are fewer than five calculation days in the
calculation period, then the ending value will equal the arithmetic average or
arithmetic mean of the last prices of Oracle common stock on these calculation
days, and if there is only one calculation day, then the ending value will
equal the Last price of Oracle common stock on that calculation day. If no
calculation days occur during the calculation period, then the ending value
will equal the last price of Oracle common stock determined on the last
scheduled calculation day in the calculation period, regardless of the
occurrence of a Market disruption event on that day.

     The "calculation period" means the period from and including the seventh
scheduled calculation day prior to the stated maturity date to and including
the second scheduled calculation day before the stated maturity date.

     "calculation day" means any trading day during the calculation period on
which a Market disruption event has not occurred.

     "trading day" is a day on which shares of Oracle common stock

     (a)  are not suspended from trading on any national or regional
          securities exchange or association or over-the-counter market at the
          close of business and

     (b)  have traded at least once on a national or regional securities
          exchange or association or over-the-counter market that is the
          primary market for the trading of Oracle common stock.

     "market disruption event" means the occurrence or existence on any
trading day during the one-half hour period that ends when the last price is
determined of any suspension of, or limitation imposed on, trading in Oracle
common stock on the National Association of Securities Dealers, Inc. Automated
Quotation System or other market or exchange, if applicable.

     "last price" means the last sales price of Oracle common stock as
reported by the NASDAQ NMS or, if that security is not trading on the NASDAQ
NMS on any date, as reported in the composite transactions for the principal
United States securities exchange on which that security is so listed, or if
that security is not so listed on a United States national or regional
securities exchange, the last quoted bid price for that security in the
over-the-counter market as reported by the National Quotation Bureau or
similar organization, or, if the bid price is not available, the market value
of that security on that date as determined by a nationally recognized
independent investment banking firm retained for this purpose by the
calculation agent.

     "business day" means each Monday, Tuesday, Wednesday, Thursday and Friday
that is not a day on which banking institutions in The City of New York are
authorized or obligated by law to close and that is a trading day on the NYSE.

     All determinations made by the calculation agent shall be at the sole
discretion of the calculation agent and, absent a determination by the
calculation agent of a manifest error, shall be conclusive for all purposes
and binding on ML&Co. and beneficial owners of the ProGroS Securities.
    


<PAGE>


   
Early Call of the ProGroS Securities at the Option of ML&Co.

     Beginning April 1, 1999, ML&Co., in its sole discretion, may elect to
call the ProGroS Securities offered hereby, in whole but not in part, before
the stated maturity date by giving notice to the Trustee of ML&Co.'s election
on any business day within the month of April in 1999, 2000, 2001 or 2002, at
the related call price:
    


             Call Period                            Call Price
             -----------                            ------------------------

             April, 1999                            116% of principal amount
             April, 2000                            132% of principal amount
             April, 2001                            148% of principal amount
             April, 2002                            164% of principal amount


   
     If we elect to call your ProGroS Securities prior to the stated maturity
date, you will receive only the relevant call price and you will not receive a
supplemental redemption amount based on the price of Oracle common stock. If
we do not call the ProGroS Securities prior to the stated maturity date, the
principal amount plus the supplemental redemption amount, if any, that you
receive at the stated maturity may be greater than or less than any of the
call prices. ML&Co. may elect to call the ProGroS Securities on any business
day during a call period by giving notice to the Trustee and specifying the
date on which the call price shall be paid. The call date shall be no later
than the 20th Business day after any call election. The Trustee will provide
notice of any call election to the registered holders of the ProGroS
Securities, specifying the call date, no later than 15, nor more than 30, days
before the call date. While the ProGroS Securities are held at the Depositary,
the registered holder will be the Depositary, and the Depositary will receive
the notice of the call. As more fully described below under "Description of
ProGroS Securities--Depositary", the Depositary will forward any notice to its
participants which will pass any notice on to the beneficial owners.
    


<PAGE>


     Hypothetical Returns

   
     The following table illustrates, for a range of hypothetical ending
values:

     o    the total amount payable at the stated maturity date for each unit
          of ProGroS Securities,

     o    the total rate of return to beneficial owners of the ProGroS
          Securities and

     o    the pretax annualized rate of return to beneficial owners of ProGroS
          Securities.
    

     This table assumes that the ProGroS Securities are not called prior to
the stated maturity date.

   

<TABLE>
<CAPTION>


                                                  Total Amount                                                         
                                                  Payable at the                                   Pretax
                        Percentage Change         Stated Maturity Date                             Annualized
Hypothetical            Over the                      per                   Total Rate             Rate of
Ending  value           Starting  value              Unit                   of Return              Returns(1)
- --------------          ----------------------    --------------------      ----------             ----------

<S>                     <C>                       <C>                       <C>                    <C>  

    

         11.68                     %                   $10.00                  0.00%                 0.00%
         14.60                     %                   $10.00                  0.00%                 0.00%
         17.51                     %                   $10.00                  0.00%                 0.00%
         20.43                     %                   $10.00                  0.00%                 0.00%
         23.35                     %                   $10.00                  0.00%                 0.00%
         26.27                     %                   $10.00                  0.00%                 0.00%
         29.19                     0%                  $10.00                  0.00%                 0.00%
         32.11                    10%                  $11.00                 10.00%                 1.90%
         35.03                    20%                  $12.00                 20.00%                 3.65%
         37.95                    30%                  $13.00                 30.00%                 5.28%
         40.87                    40%                  $14.00                 40.00%                 6.79%
         43.79                    50%                  $15.00                 50.00%                 8.22%
         46.70                    60%                  $16.00                 60.00%                 9.55%
         49.62                    70%                  $17.00                 70.00%                10.82%
         52.54                    80%                  $18.00                 80.00%                12.02%
         55.46                    90%                  $19.00                 90.00%                13.16%
         58.38                   100%                  $20.00                100.00%                14.25%
         61.30                   110%                  $21.00                110.00%                15.29%
         64.22                   120%                  $22.00                120.00%                16.29%

</TABLE>


   
(1)  The  annualized  rates of return  specified  in the  preceding  table are
     calculated on a semiannual bond equivalent basis.
(2) The starting value equals $29.1875.

         The above figures are for purposes of  illustration  only. The actual
supplemental  redemption amount received by investors and the total and pretax
annualized  rate of return  resulting  therefrom  will depend  entirely on the
actual ending value  determined by the  calculation  agent as provided in this
prospectus.
    

Dilution Adjustments

   
     The Last prices used to determine the ending value are subject to
adjustment if Oracle Corporation shall:

     (a)  pay a stock dividend or make a distribution with respect to Oracle
          common stock in shares of Oracle common stock;

     (b)  subdivide or split the outstanding shares of Oracle common stock
          into a greater number of shares;

     (c)  combine the outstanding shares of Oracle common stock into a smaller
          number of shares;

     (d)  issue by reclassification of shares of Oracle common stock any
          shares of common stock of Oracle Corporation;

     (e)  issue rights or warrants to all holders of Oracle common stock
          entitling them to subscribe for or purchase shares of Oracle common
          stock at a price per share less than the then current market price
          of Oracle common stock (other than rights to purchase Oracle common
          stock pursuant to a plan for the reinvestment of dividends or
          interest); or

     (f)  pay a dividend or make a distribution to all holders of Oracle
          common stock of evidences of its indebtedness or other assets,
          excluding any stock dividends or distributions referred to in clause
          (a) above or any cash dividends other than any extraodinary cash
          dividend or issue to all holders of Oracle common stock rights or
          warrants to subscribe for or purchase any of its securities, other
          than those referred to in clause (e) above, any of the foregoing are
          referred to as the "Distributed Assets". The effect of the foregoing
          is that there will not be any adjustments to the ending value for
          the issuance by Oracle Corporation of options, warrants, stock
          purchase rights or securities in connection with the employee
          benefit plans of Oracle Corporation.

     All adjustments will be calculated to the nearest 1/10,000th of a share
of Oracle common stock or if there is not a nearest 1/10,000th of a share to
the next lower 1/10,000th of a share. No adjustment shall be required unless
any adjustment would require an increase or decrease of at least one percent
in the last price; provided, however, that any adjustments which by reason of
the foregoing are not required to be made shall be carried forward and taken
into account in any subsequent adjustment.

     An "Extraodinary cash dividend" means, with respect to any
consecutive  12-month period, all cash dividends on Oracle common stock during
that period to the extent any dividends exceed on a per share basis 10% of the
average last price of Oracle  common stock over that period less any dividends
for which a prior adjustment was previously made.
    

     In the event of

   
     (a)  any consolidation or merger of Oracle Corporation, or any surviving
          entity or subsequent surviving entity of Oracle Corporation, a
          "Successor Company", with or into another entity, other than a
          merger or consolidation in which Oracle Corporation is the
          continuing corporation and in which Oracle common stock outstanding
          immediately prior to the merger or consolidation is not exchanged
          for cash, securities or other property of Oracle Corporation or
          another corporation,
    

     (b)  any sale, transfer, lease or conveyance to another corporation of
          the property of Oracle Corporation or any Successor Company as an
          entirety or substantially as an entirety,

   
     (c)  any statutory exchange of securities of Oracle Corporation or any
          Successor Company with another corporation, other than in connection
          with a merger or acquisition or

     (d)  any liquidation, dissolution, winding up or bankruptcy of Oracle
          Corporation or any Successor Company, any event described in clause
          (a), (b), (c) or (d), a "reorganization event", the ending value
          shall equal the reorganization event value.

     The  "reorganization event value" shall be determined by the calculation
agent and shall equal

     o    the transaction value related to the relevant Reorganization Event,
          plus

     o    interest on the transaction value accruing from the date of the
          payment or delivery of the consideration, if any, received in
          connection with that Reorganization Event until the stated maturity
          date at a fixed interest rate determined on the date of that payment
          or delivery equal to the interest rate that would be paid on a
          standard senior non-callable debt security of ML&Co. with a term
          equal to the remaining term of the ProGroS Securities.

     The  "transaction value" means

     o    for any cash received in any reorganization event, the amount of
          cash received per share of Oracle common stock,

     o    for any property other than cash or securities received in any
          reorganization event, an amount equal to the market value of
          property received per share on the date that the property is
          received by holders of Oracle common stock as determined by the
          calculation agent, and

     o    for any securities received in any reorganization event, an amount
          equal to the last price per unit of securities on the date the
          securities are received by holders of Oracle common stock multiplied
          by the number of the securities received for each share of Oracle
          common stock, subject to adjustment on a basis consistent with the
          adjustment provisions described above.

     The  foregoing adjustments shall be made by MLPF&S, as calculation agent,
and all adjustments shall be final.

     No adjustments will be made for other events, such as offerings of Oracle
common stock by Oracle Corporation for cash or in connection with
acquisitions.

     ML&Co. will, within ten business days following the occurrence of an
event that requires an adjustment or if ML&Co. is not aware of occurrence, as
soon as practicable after becoming so aware, provide written notice to the
Trustee, which shall provide notice to the holders of the ProGroS Securities
of the occurrence of any event and, if applicable, a statement in reasonable
detail setting forth the adjusted last price to be used in determining the
ending value.
    

Events of Default and Acceleration

   
     In case an event of default with respect to any ProGroS Securities has
occurred and is continuing, the amount payable to a beneficial owner of a
ProGroS Security upon any acceleration permitted by the ProGroS Securities,
with respect to each unit, will be equal to the principal amount and the
supplemental redemption amount, if any, calculated as though the date of early
repayment were the stated maturity date of the ProGroS Securities. See
"Description of ProGroS Securities--Payment at Maturity" in this prospectus.
If a bankruptcy proceeding is commenced in respect of ML&Co., the claim of the
beneficial owner of a ProGroS Security may be limited, under Section 502(b)(2)
f Title 11 of the United States Code, to the principal amount of the ProGroS
Security plus an additional amount of contingent interest calculated as though
the date of the commencement of the proceeding were the stated maturity date
of the ProGroS Securities.

     In case of default in payment of the ProGroS Securities whether at the
call date, at the stated maturity date, or upon acceleration, from and after
the stated maturity date the ProGroS Securities shall bear interest, payable
upon demand of their beneficial owners , at the rate of 5.96% per annum to the
extent that payment of interest shall be legally enforceable on the unpaid
amount due and payable on that date in accordance with the terms of the
ProGroS Securities to the date payment of that amount has been made or duly
provided for.

Global Securities

     Description of the Global Securities.

     The ProGroS Securities are represented by one or more fully registered
global securities. Each global security has been deposited with, or on behalf
of, The Depository Trust Company or DTC, together with any successor thereto,
being a "depositary", as depositary, registered in the name of Cede & Co.,
DTC's partnership nominee. Unless and until it is exchanged in whole or in
part for ProGroS Securities in definitive form, no global security may be
transferred except as a whole by the depositary to a nominee of the depositary
or by a nominee of the depositary to the depositary or another nominee of the
Depositary or by the depositary or any nominee to a successor of the
depositary or a nominee of that successor.

     So long as DTC, or its nominee, is a registered owner of a global
security, DTC or its nominee, as the case may be, will be considered the sole
owner or holder of the ProGroS Securities represented by a global security for
all purposes under the 1983 indenture. Except as provided below, the
beneficial owners of the ProGroS Securities represented by a global security
are not entitled to have the ProGroS Securities represented by the global
security registered in their names, will not receive or be entitled to receive
physical delivery of the ProGroS Securities in definitive form and are not
considered the owners or holders under the 1983 indenture, including for
purposes of receiving any reports delivered by ML&Co. or the trustee under the
1983 indenture. Accordingly, each person owning a beneficial interest in a
global security must rely on the procedures of DTC and, if that person is not
a participant of DTC on the procedures of the participant through which that
person owns its interest, to exercise any rights of a holder under the 1983
indenture. ML&Co. understands that under existing industry practices, in the
event that ML&Co. requests any action of holders or that an owner of a
beneficial interest in an global security desires to give or take any action
which a holder is entitled to give or take under the 1983 indenture, DTC would
authorize the participants holding the relevant beneficial interests to give
or take any action, and these participants would authorize beneficial owners
owning through these participants to give or take any action or would
otherwise act upon the instructions of beneficial owners. Conveyance of
notices and other communications by DTC to participants, by participants to
indirect participants and by participants and indirect participants to
beneficial owners are governed by arrangements among them, subject to any
statutory or regulatory requirements as may be in effect from time to time.

     DTC Procedures
    

     The following is based on information furnished by DTC:

   
     DTC is the securities depositary for the ProGroS Securities. The ProGroS
Securities have been issued as fully registered securities registered in the
name of Cede & Co., DTC's partnership nominee. One or more fully registered
global securities have been issued for the ProGroS Securities in the aggregate
principal amount of that issue, and has been deposited with DTC.

     DTC is a limited-purpose trust company organized under the New York
Banking Law, a "banking organization" within the meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing corporation"
within the meaning of the New York Uniform Commercial Code, and a "clearing
agency" registered pursuant to the provisions of Section 17A of the 1934 Act.
DTC holds securities that its participants deposit with DTC. DTC also
facilitates the settlement among participants of securities transactions, such
as transfers and pledges, in deposited securities through electronic
computerized book-entry changes in participants' accounts, thereby eliminating
the need for physical movement of securities certificates. Direct participants
of DTC include securities brokers and dealers, banks, trust companies,
clearing corporations and other organizations. DTC is owned by a number of its
direct participants and by the NYSE, the AMEX and the National Association of
Securities Dealers, Inc. Access to the DTC's system is also available to
others such as securities brokers and dealers, banks and trust companies that
clear through or maintain a custodial relationship with a direct participant,
either directly or indirectly. The rules applicable to DTC and its
participants are on file with the SEC.

     Purchases of ProGroS Securities under DTC's system must be made by or
through direct participants, which will receive a credit for the ProGroS
Securities on DTC's records. The ownership interest of each beneficial owner
is in turn to be recorded on the records of direct and indirect participants.
Beneficial owners will not receive written confirmation from DTC of their
purchase, but beneficial owners are expected to receive written confirmations
providing details of the transaction, as well as periodic statements of their
holdings, from the direct participants or indirect participants through which
that beneficial owner entered into the transaction. Transfers of ownership
interests in the ProGroS Securities are to be accomplished by entries made on
the books of participants acting on behalf of beneficial owners.

     To facilitate subsequent transfers, all ProGroS Securities deposited with
DTC are registered in the name of DTC's partnership nominee, Cede & Co. The
deposit of ProGroS Securities with DTC and their registration in the name of
Cede & Co. effect no change in beneficial ownership. DTC has no knowledge of
the actual beneficial owners of the ProGroS Securities; DTC's records reflect
only the identity of the direct participants to whose accounts the ProGroS
Securities are credited, which may or may not be the beneficial owners. The
participants are responsible for keeping account of their holdings on behalf
of their customers.

     Conveyance of notices and other communications by DTC to direct
participants, by direct participants to indirect participants, and by direct
and indirect participants to beneficial owners are governed by arrangements
among them, subject to any statutory or regulatory requirements as may be in
effect from time to time.

     Neither DTC nor Cede & Co. will consent or vote with respect to the
ProGroS Securities. Under its usual procedures, DTC mails an omnibus proxy to
ML&Co. as soon as possible after the applicable record date. The omnibus proxy
assigns Cede & Co.'s consenting or voting rights to those direct participants
to whose accounts the ProGroS Securities are credited on the record date,
identified in a listing attached to the omnibus proxy.

     Principal, premium, if any, and/or interest, if any, payments on the
ProGroS Securities will be made in immediately available funds to DTC. DTC's
practice is to credit direct participants' accounts on the applicable payment
date in accordance with their respective holdings shown on the depositary's
records unless DTC has reason to believe that it will not receive payment on
that date. Payments by participants to beneficial owners will be governed by
standing instructions and customary practices, as is the case with securities
held for the accounts of customers in bearer form or registered in "street
name", and will be the responsibility of the participant and not of DTC, the
trustee or ML&Co., subject to any statutory or regulatory requirements as may
be in effect from time to time. Payment of principal, premium, if any, and/or
interest, if any, to DTC is the responsibility of ML&Co. or the Trustee,
disbursement of the payments to direct participants is the responsibility of
DTC, and disbursement of the payments to the beneficial owners is the
responsibility of direct and indirect participants.

     Exchange for Certificated Securities

     If:

     (a)  the depositary is at any time unwilling or unable to continue as
          depositary and a successor depositary is not appointed by ML&Co.
          within 60 days,

     (b)  ML&Co. executes and delivers to the trustee a company order to the
          effect that the global securities shall be exchangeable, and

     (c)  an event of default under the 1983 indenture has occurred and is
          continuing with respect to the ProGroS Securities,

the global securities will be exchangeable for ProGroS Securities in
definitive form of like tenor and of an equal aggregate principal amount, in
denominations of $10 and integral multiples of $10. The definitive ProGroS
Securities will be registered in the name or names as the depositary shall
instruct the trustee. It is expected that these instructions may be based upon
directions received by the depositary from participants with respect to
ownership of beneficial interests in the global securities.

     In addition, ML&Co. may decide to discontinue use of the system of
book-entry transfers through the Depositary. In that event, MITTS Security in
definitive form will be printed and delivered.

     The information in this section concerning DTC and DTC's system has been
obtained from sources that ML&Co. believes to be reliable, but ML&Co. takes no
responsibility for its accuracy .
    

Same-Day Payment

   
     All payments of principal and the supplemental redemption amount, and
call price if any, and will be made by ML&Co. in immediately available funds
so long as the ProGroS Securities are maintained in book-entry form.


                              ORACLE COMMON STOCK
    

Oracle Corporation

     Oracle Corporation supplies software for information management. Oracle
Corporation offers its database, tools and application products, along with
related consulting, education, and support services in more than 140 countries
around the world.

   
     Oracle Corporation is subject to the informational requirements of the
Exchange Act. Accordingly, Oracle Corporation files reports, proxy and other
information statements and other information with the SEC. Information
provided to or filed with the SEC by Oracle Corporation is available at the
offices of the Commission . ML&Co. makes no representation or warranty as to
the accuracy or completeness of these reports.

     ML&Co. is not affiliated with Oracle Corporation and Oracle Corporation
has no obligations with respect to the ProGroS Securities. This prospectus
relates only to the ProGroS securities offered by this prospectus and does not
relate to Oracle common stock or other securities of Oracle Corporation. The
information contained in this prospectus regarding Oracle Corporation has been
derived from the publicly available documents described in the preceding
paragraph. ML&Co. has not participated in the preparation of these documents
or made any due diligence inquiries with respect to Oracle Corporation in
connection with the initial offering of the ProGroS Securities. ML&Co. makes
no representation that any publicly available documents or any other publicly
available information regarding Oracle Corporation are accurate or complete.
Furthermore, there can be no assurance that all events occurring prior to the
date of this prospectus, including events that would affect the accuracy or
completeness of the publicly available documents described in the preceding
paragraph, that would affect the trading price of Oracle common stock have
been publicly disclosed. Subsequent disclosure of any events or the disclosure
of or failure to disclose material future events concerning Oracle Corporation
could affect the Supplemental Redemption Amount to be received at the stated
maturity date and therefore the trading value of the ProGroS Securities.

     From time to time, in the ordinary course of business, affiliates of
ML&Co. have engaged in investment banking activities on behalf of the Oracle
Corporation as well as served as counterparty in other transactions.

     Oracle common stock is traded on the NASDAQ NMS under the trading symbol
"ORCL".


                                  OTHER TERMS

     ML&Co. issued the ProGroS Securities as a series of senior debt
securities under the 1983 indenture, dated as of April 1, 1983, as amended and
restated, between ML&Co. and The Chase Manhattan Bank, as Trustee. A copy of
the 1983 indenture is filed as an exhibit to the registration statement
relating to the ProGroS Securities of which this prospectus is a part. The
following summaries of the material provisions of the 1983 indenture are not
complete and are subject to, and qualified in their entirety by reference to,
all provisions of the 1983 indenture, including the definitions of terms in
the 1983 indenture.

     ML&Co. may issue series of senior debt securities from time to time under
the 1983 indenture, without limitation as to aggregate principal amount, in
one or more series and upon terms as ML&Co. may establish under the provisions
of the 1983 indenture.

     The 1983 indenture and the ProGroS Securities are governed by and
construed in accordance with the laws of the State of New York.

     ML&Co. may issue senior debt securities with terms different from those
of senior debt securities previously issued, and issue additional senior debt
securities of a previously issued series of senior debt securities.

     The senior debt securities are unsecured and rank equally with all other
unsecured and unsubordinated indebtedness of ML&Co. However, because ML&Co. is
a holding company, the rights of ML&Co. and its creditors, including the
holders of senior debt securities, to participate in any distribution of the
assets of any subsidiary upon its liquidation or reorganization or otherwise
are necessarily subject to the prior claims of creditors of the subsidiary,
except to the extent that claims of ML&Co. itself as a creditor of the
subsidiary may be recognized. In addition, dividends, loans and advances from
some subsidiaries, including MLPF&S, to ML&Co. are restricted by net capital
requirements under the Exchange Act, and under rules of exchanges and other
regulatory bodies.

Limitations Upon Liens

     ML&Co. may not, and may not permit any majority-owned subsidiary to,
create, assume, incur or permit to exist any indebtedness for borrowed money
secured by a pledge, lien or other encumbrance, other than those liens
specifically permitted by the 1983 indenture, on the Voting Stock owned
directly or indirectly by ML&Co. of any majority-owned subsidiary, other than
a majority-owned subsidiary which, at the time of the incurrence of the
secured indebtedness, has a net worth of less than $3,000,000, unless the
outstanding senior debt securities are secured equally and ratably with the
secured indebtedness.

     "Voting Stock" is defined in the 1983 indenture as the stock of the class
or classes having general voting power under ordinary circumstances to elect
at least a majority of the board of directors, managers or trustees of a
corporation provided that, for the purposes of the 1983 indenture, stock that
carries only the right to vote conditionally on the occurrence of an event is
not considered Voting Stock whether or not the event has happened.

Limitation  on Disposition of Voting Stock of, and Merger and Sale of Assets by,
MLPF&S

     ML&Co. may not sell, transfer or otherwise dispose of any Voting Stock of
MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of its
Voting Stock, unless, after giving effect to any transaction, MLPF&S remains a
Controlled Subsidiary.

     "Controlled Subsidiary" is defined in the 1983 indenture to mean a
corporation more than 80% of the outstanding shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

     In addition, ML&Co. may not permit MLPF&S to:

     o    merge or consolidate, unless the surviving company is a Controlled
          Subsidiary, or
    

     o    convey or transfer its properties and assets substantially as an
          entirety, except to one or more Controlled Subsidiaries.

Merger and Consolidation

   
     ML&Co. may consolidate or merge with or into any other corporation and
ML&Co. may sell, lease or convey all or substantially all of its assets to any
corporation, provided that:

     o    the resulting corporation, if other than ML&Co., is a corporation
          organized and existing under the laws of the United States of
          America or any U.S. state and assumes all of ML&Co.'s obligations
          to:

          o    pay any amounts due and payable or deliverable with respect to
               all the senior debt securities; and

          o    perform and observe of all of ML&Co.'s obligations under the
               1983 indenture, and

     o    ML&Co. or the successor corporation, as the case may be, is not,
          immediately after any consolidation or merger, in default under the
          1983 indenture.
    

Modification and Waiver

   
     The 1983 indenture may be modified and amended by ML&Co. and the trustee
with the consent of holders of at least 66 2/3% in principal amount of each
outstanding series of debt securities affected. However, without the consent
of each holder of any outstanding debt security affected, no amendment or
modification to any indenture may:

     o    change the stated maturity date of the principal of, or any
          installment of interest or additional amounts payable on, any senior
          debt security or any premium payable on redemption , or change the
          redemption price;

     o    reduce the principal amount of, or the interest or additional
          amounts payable on, any senior debt security or reduce the amount of
          principal which could be declared due and payable before the stated
          maturity date;

     o    change the place or currency of any payment of principal or any
          premium, interest or additional amounts payable on any senior debt
          security;

     o    impair the right to institute suit for the enforcement of any
          payment on or with respect to any senior debt security;

     o    reduce the percentage in principal amount of the outstanding senior
          debt securities of any series, the consent of whose holders is
          required to modify or amend the 1983 indenture; or

     o    modify the foregoing requirements or reduce the percentage of
          outstanding senior debt securities necessary to waive any past
          default to less than a majority.

     No modification or amendment of ML&Co.'s Subordinated Indenture or any
Subsequent Indenture for subordinated debt securities may adversely affect the
rights of any holder of ML&Co.'s senior indebtedness without the consent of
each holder affected. The holders of at least a majority in principal amount
of outstanding senior debt securities of any series may, with respect to that
series, waive past defaults under the Indenture and waive compliance by ML&Co.
with provisions in the 1983 indenture, except as described under "--Events of
Default".

Events of Default

     Each of the following will be events of default with respect to senior
debt securities of any series:

     o    default in the payment of any interest or additional amounts payable
          when due and continuing for 30
          days;

     o    default in the payment of any principal or premium when due;

     o    default in the deposit of any sinking fund payment, when due;

     o    default in the performance of any other obligation of ML&Co.
          contained in the indenture for the benefit of that series or in the
          senior debt securities of that series, continuing for 60 days after
          written notice as provided in the 1983 indenture;

     o    specified events in bankruptcy, insolvency or reorganization of
          ML&Co.; and

     o    any other event of default provided with respect to senior debt
          securities of that series which are not inconsistent with the 1983
          indenture.

     If an event of default occurs and is continuing for any series of senior
debt securities, other than as a result of the bankruptcy, insolvency or
reorganization of ML&Co., the trustee or the holders of at least 25% in
principal amount of the outstanding senior debt securities of that series may
declare all amounts, or any lesser amount provided for in the senior debt
securities, due and payable or deliverable immediately. At any time after a
declaration of acceleration has been made with respect to senior debt
securities of any series but before the trustee has obtained a judgment or
decree for payment of money, the holders of a majority in principal amount of
the outstanding senior debt securities of that series may rescind any
declaration of acceleration and its consequences, if all payments due, other
than those due as a result of acceleration, have been made and all events of
default have been remedied or waived.

     The holders of a majority in principal amount or aggregate issue price of
the outstanding debt securities of that series may waive any event of default
with respect to any series, except a default:

     o    in the payment of any amounts due and payable or deliverable under
          the debt securities of that series; or

     o    in respect of an obligation or provision of any indenture which
          cannot be modified under the terms of that indenture without the
          consent of each holder of each series of debt securities affected.

     The holders of a majority in principal amount of the outstanding senior
debt securities of a series may direct the time, method and place of
conducting any proceeding for any remedy available to the trustee or
exercising any trust or power conferred on the trustee with respect to those
senior debt securities, provided that any direction shall not be in conflict
with any rule of law or the 1983 indenture. Before proceeding to exercise any
right or power under the 1983 indenture at the direction of the holders, the
trustee shall be entitled to receive from the holders reasonable security or
indemnification against the costs, expenses and liabilities which might be
incurred by it in complying with any direction.

     The ProGroS Securities and other series of senior debt securities issued
under the 1983 indenture do not have the benefit of any cross-default
provisions with other indebtedness of ML&Co.

     ML&Co. is required to furnish to the trustee annually a statement as to
the fulfillment by ML&Co. of all of its obligations under the 1983 indenture.

                      WHERE YOU CAN FIND MORE INFORMATION

     We file reports, proxy statements and other information with the SEC. Our
SEC filings are also available over the Internet at the SEC's web site at
http://www.sec.gov. You may also read and copy any document we file by
visiting the SEC's public reference rooms in Washington, D.C., New York, New
York, and Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further
information about the public reference rooms. You may also inspect our SEC
reports and other information at the New York Stock Exchange, Inc., 20 Broad
Street, New York, New York 10005.

     We have filed a registration statement on Form S-3 with the SEC covering
the ProGroS Securities and other securities. For further information on ML&Co.
and the ProGroS Securities, you should refer to our registration statement and
its exhibits. This prospectus summarizes material provisions of contracts and
other documents that we refer you to. Because the prospectus may not contain
all the information that you may find important, you should review the full
text of these documents. We have included copies of these documents as
exhibits to our registration statement of which this prospectus is a part.


               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

     The SEC allows us to incorporate by reference the information we file
with them, which means:

     o    incorporated documents are considered part of the prospectus;

     o    we can disclose important information to you by referring you to
          those documents; and

     o    information that we file with the SEC will automatically update and
          supersede this incorporated information.

     We incorporate by reference the documents listed below which were filed
with the SEC under the Exchange Act:

     o    annual report on Form 10-K for the year ended December 25, 1998; and

     o    current reports on Form 8-K dated December 28, 1998, January 19,
          1999, February 17, 1999, February 18, 1999, February 22, 1999,
          February 23, 1999 and March 26, 1999.

     We also incorporate by reference each of the following documents that we
will file with the SEC after the date of this prospectus until this offering
is completed or after the date of this initial registration statement and
before the effectiveness of the registration statement:

     o    reports filed under Sections 13(a) and (c) of the Exchange Act;

     o    definitive proxy or information statements filed under Section 14 of
          the Exchange Act in connection with any subsequent stockholders'
          meeting; and

     o    any reports filed under Section 15(d) of the Exchange Act.

     You should rely only on information contained or incorporated by
reference in this prospectus. We have not, and MLPF&S has not, authorized any
other person to provide you with different information. If anyone provides you
with different or inconsistent information, you should not rely on it. We are
not, and MLPF&S is not, making an offer to sell these securities in any
jurisdiction where the offer or sale is not permitted.

     You should assume that the information appearing in this prospectus is
accurate as of the date of this prospectus only. Our business, financial
condition and results of operations may have changed since that date.

     You may request a copy of any filings referred to above, excluding
exhibits, at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan, Jr., Corporate Secretary's Office, Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.


                             PLAN OF DISTRIBUTION

     This prospectus has been prepared in connection with secondary sales of
the ProGroS Securities and is to be used by MLPF&S when making offers and
sales related to market-making transactions in the ProGroS Securities.

     MLPF&S may act as principal or agent in these market-making transactions.

     The ProGroS Securities may be offered on the AMEX or off the exchange in
negotiated transactions or otherwise.

     The distribution of the ProGroS Securities will conform to the
requirements set forth in the applicable sections of Rule 2720 of the Conduct
Rules of the NASD.
    


                                    EXPERTS

   
         The  consolidated  financial  statements  and the  related  financial
statement  schedule  incorporated  in this  prospectus  by reference  from the
Annual Report on Form 10-K of Merrill Lynch & Co., Inc. and subsidiaries  have
been  audited by Deloitte & Touche  LLP,  independent  auditors,  as stated in
their reports (which  express an  unqualified  opinion and which report on the
consolidated  financial  statements includes an explanatory  paragraph for the
change in  accounting  method for certain  internal-use  software  development
costs),  which  are  incorporated  herein  by  reference,  and  have  been  so
incorporated  in  reliance  upon the  reports  of such firm  given  upon their
authority as experts in accounting and auditing.


    


<PAGE>
   
The information in this prospectus is not complete and may be changed. We may
not sell these securities until the registration statement filed with the
Securities and Exchange Commission is effective. This prospectus is not an
offer to sell these securities and it is not soliciting an offer to buy these
securities in any state where the offer or sale is not permitted.
    



   
                             Subject to Completion
                  Preliminary Prospectus dated March 29, 1999
                                         


P R O S P E C T U S
   
                           Merrill Lynch & Co., Inc.
  European Portfolio Market Index Target-Term SecuritiesSM due June 30, 1999
                             "MITTS(R) Securities"
                         $10 principal amount per unit

     This prospectus is to be used by Merrill Lynch & Co., Merrill Lynch,
Pierce, Fenner & Smith Incorporated, our wholly-owned subsidiary, when making
offers and sales related to market-making transactions in the MITTS
Securities.

<TABLE>
<CAPTION>

<S>                                         <C>

The MITTS Securities:                       Payment at Maturity:
o No payments before the maturity date      o On the maturity  date, for each unit of
o Senior unsecured debt ecurities of          the MITTS Securities  you own,  we
  Merrill Lynch & Co., Inc.                   will pay you an amount determined based
o linked to the value of a portfolio of       upon the change in  value of a portfolio of
 specified stocks of specified stocks of      specified securities of  European companies
 European  companies                          described in this prospectus.
o The MITTS Securities are listed on the    o If the initial value of the portfolio is more
  New York Stock Exchange under the symbol    than the ending value of the portfolio, the
  "MEE"                                       amount you receive at maturity may be less than
                                              the principal amount of your MITTS Securities,
                                              however, the amount you receive at maturity will
                                              not be less than $9.00  per unit of your MITTS
                                              Securities

</TABLE>
                                                   


               Investing in the MITTS Securities involves risks.

                    See "Risk Factors" beginning on page 3.
    


     Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if
this prospectus is truthful or complete. Any representation to the contrary is
a criminal offense.

   
     The sale price of the MITTS Securities will be the prevailing market
price at the time of sale.
    

                           ------------------------

   
                              Merrill Lynch & Co.
    
                           ------------------------

                    The date of this prospectus is , 199 .

   
     "MITTS" and "Market Index Target-Term Securities" are registered service
marks of Merrill Lynch & Co., Inc.
    


<PAGE>


   
                               TABLE OF CONTENTS

                                                                          Page

RISK FACTORS................................................................3

MERRILL LYNCH & CO., INC....................................................7

RATIO OF EARNINGS TO FIXED CHARGES..........................................8

DESCRIPTION OF THE MITTS SECURITIES.........................................9

THE PORTFOLIO..............................................................19

OTHER TERMS................................................................20

WHERE YOU CAN FIND MORE INFORMATION.......................................23
    

INCORPORATION OF INFORMATION WE FILE WITH THE SEC..........................24

   
PLAN OF DISTRIBUTION.......................................................24

EXPERTS....................................................................25
    


<PAGE>


   
                                 RISK FACTORS

      Your investment in MITTS Securities will involve risks. You should
carefully  consider the following  discussion of risks before deciding whether
an investment in the MITTS Securities is suitable for you.

You may not earn a return on your investment.

     Your return on the MITTS Securities will depend on the return of the
specified portfolio of securities issued by European companies described in
this prospectus. You should be aware that if the average value of this
portfolio over five trading days shortly before the maturity date is less than
$100, you will receive less than the principal amount of your MITTS Securities
at maturity, but no less than $9.00 per unit of the MITTS Securities. If the
average value of the portfolio over five trading days shortly before the
maturity date equals $100, you will receive only your principal amount. This
will be true even if, at some time during the life of the MITTS Securities,
the portfolio value may have exceeded $100 but later falls below or remains
equal to $100.

Your  yield  may be  lower  than the  yield on a  standard  debt  security  of
comparable maturity.

     The amount we pay you at maturity may be less than the return you could
earn on other investments. Your yield may be less than the yield you would
earn if you bought a standard senior non-callable debt security of Merrill
Lynch & Co., Inc. with the same maturity date. Your investment may not reflect
the full opportunity cost to you when you consider inflation and other factors
that affect the time value of money.

Your return  will not reflect the return of owning the stocks  included in the
portfolio.

     Your return will not reflect the return you would realize if you actually
owned the stocks included in the portfolio and received the dividends paid on
those stocks. This is because the value of the portfolio is calculated by
reference to the prices of the common stocks included in the portfolio without
taking into consideration the value of dividends paid on those stocks.

Your return will be affected by changes in foreign currency exchange rates and
foreign markets.

     Although your return on your MITTS Securities is based on value of the
securities included in the portfolio, your investment in the MITTS Securities
does not give you any right to receive any of the securities included in the
portfolio or any other ownership right or interest in those securities. In
addition, while the MITTS Securities are U.S-dollar denominated, because the
prices of some of the portfolio securities and the shares underlying the
portfolio securities are quoted in currencies other than the U.S. dollar, your
return will be affected by changes in foreign currency rates relative to the
U.S. dollar. The U.S. dollar price of a security denominated in a currency
other than the U.S. dollar will depend on the price of that security and the
exchange rate between that currency and the U.S. dollar. Even if the price in
a foreign currency of the security is unchanged, changes in the rates of
exchange between the U.S. dollar and the foreign currency will change the U.S.
dollar price of the security. Furthermore, even if the price of the security
in the foreign currency increases, the U.S. dollar price of the security may
decrease as a result of changes in the rates of exchange between the U.S.
dollar and the foreign currency. Rates of exchange between the dollar and
other currencies are determined by forces of supply and demand in the foreign
exchange markets. These forces are, in turn, affected by international balance
of payments and other economic and financial conditions, government
intervention, speculation and other factors.

     You should be aware that investments in securities indexed to the value
of non-United States securities involve risks. Fluctuations in foreign
exchange rates, future foreign political and economic developments, and the
possible imposition of exchange controls or other foreign governmental laws or
restrictions applicable to these investments may affect the U.S. dollar value
of the securities, including the securities in the portfolio. Securities
prices in different countries are subject to different economic, financial,
political and social factors. Individual foreign economies may differ
favorably or unfavorably from the U.S. economy in the areas of growth of gross
national product, rate of inflation, capital reinvestment, resources,
self-sufficiency and balance of payments position. With respect to certain
countries, there is the possibility of expropriation of assets, confiscatory
taxation, political or social instability or diplomatic developments which
could affect the value of investments in those countries. There may be less
publicly available information about a foreign company than about a U.S.
company, and foreign companies may not be subject to accounting, auditing and
financial reporting standards and requirements comparable to those to which
U.S. entities are subject. Some foreign investments may be subject to foreign
withholding taxes which could affect the value of investment in these
countries. In addition, investment laws in foreign countries may limit or
restrict ownership of certain securities by foreign nationals by restricting
or eliminating voting or other rights or limiting the amount of securities
that may be so owned, and these limitations or restrictions may affect the
prices of the securities.

     Foreign financial markets, while currently growing in volume, may have
substantially less volume than U.S. markets, and securities of many foreign
companies are less liquid and their prices more volatile than securities of
comparable domestic companies. The foreign markets have different trading
practices that may affect the prices of securities. Some foreign markets on
which the portfolio securities trade impose trading restrictions if certain
price movements occur. The foreign markets have different clearance and
settlement procedures, and in certain countries there have been times when
settlements have been unable to keep pace with the volume of securities
transactions, making it difficult to conduct transactions. There is generally
less government supervision and regulation of exchanges, brokers and issuers
in foreign countries than there is in the U.S. In addition, the terms and
conditions of depositary facilities may result in less liquidity or lower
market values for the portfolio securities than for the stocks underlying
those securities.

There may be an  uncertain  trading  market  for the MITTS  Securities  in the
future.

     Although the MITTS Securities are listed on the NYSE under the symbol
"MEE," you cannot assume that a trading market will continue to exist for the
MITTS Securities. If a trading market in the MITTS Securities continues to
exist, you cannot assume that that there will be liquidity in the trading
market. The continued existence of a trading market for the MITTS Securities
will depend on our financial performance and other factors including the
appreciation, if any, of the value of the portfolio.

     If the trading market for the MITTS Securities is limited and you do not
wish to hold your investment until maturity, there may be a limited number of
buyers for your MITTS Securities. This may affect the price you receive if you
sell before maturity.

There are many factors affecting the trading value of the MITTS.

     We believe that the value of the portfolio and by a number of other
factors will affect the trading value of the MITTS Securities. Some of these
factors interrelate in complex ways; as a result, the effect of any one factor
may offset or magnify the effect of another factor. The following paragraphs
describe the expected impact on the trading value of the MITTS Securities
given a change in a specific factor, assuming all other conditions remain
constant.

     o    Interest rates. Because we will pay, at a minimum, the principal
          amount per unit of the MITTS Securities at maturity, we expect that
          changes in interest rates will affect the trading value of the MITTS
          Securities. In general, if U.S. interest rates increase, we expect
          that the trading value of the MITTS Securities will decrease and,
          conversely, if U.S. interest rates decrease, we expect the trading
          value of the MITTS Securities will increase. Local interest rates
          may also affect the economies of the countries in which issuers of
          the securities included in the portfolio or the shares underlying
          those securities operate, and, in turn, affect the portfolio value.

     o    Volatility of the portfolio value. Volatility is the term used to
          describe the size and frequency of market fluctuations. If the
          volatility of the portfolio value increases, we expect that the
          trading value of the MITTS Securities will increase. If the
          volatility of the portfolio value decreases, we expect that the
          trading value of the MITTS Securities will decrease.

     o    Time remaining to maturity. We anticipate that before their
          maturity, the MITTS Securities may trade at a value above that which
          would be expected based on the level of interest rates and the
          portfolio value. This difference will reflect a "time premium" due
          to expectations concerning the value of the Portfolio during the
          period before the maturity of the MITTS Securities. However, as the
          time remaining to maturity of the MITTS Securities decreases, we
          expect that this time premium will decrease, lowering the trading
          value of the MITTS Securities.

     o    Dividend yields. If dividend yields on the securities included in
          the portfolio and shares underlying the ADRs included in the
          portfolio increase, we expect that the value of the MITTS Securities
          will decrease. Conversely, if dividend yields on the securities
          included in the portfolio and shares underlying the ADRs included in
          the portfolio decrease, we expect that value of the MITTS Securities
          will increase.

     o    Changes in our credit ratings. Our credit ratings are an assessment
          of our ability to pay our obligations. Consequently, real or
          anticipated changes in our credit ratings may affect the trading
          value of the MITTS Securities. However, because your return on your
          MITTS Securities is dependent upon factors in addition to our
          ability to pay our obligations under the MITTS Securities, such as
          the percentage increase in the value of the portfolio at maturity,
          an improvement in our credit ratings will not reduce investment
          risks related to the MITTS Securities.

     It is important for you to understand that the impact of one of the
factors specified above, such as an increase in interest rates, may offset
some or all of any change in the trading value of the MITTS Securities
attributable to another factor, such as an increase in value of the portfolio.

     In general, assuming all relevant factors are held constant, we expect
that the effect on the trading value of the MITTS Securities of a given change
in most of the factors listed above will be less if it occurs later in the
term of the MITTS Securities than if it occurs earlier in the term of the
MITTS Securities except that we expect that the effect on the trading value of
the MITTS Securities of a given increase in the value of the portfolio will be
greater if it occurs later in the term of the MITTS Securities than if it
occurs earlier in the term of the MITTS Securities.

State law limits on interest paid.

     New York State laws govern the indenture under which the MITTS Securities
are issued. New York has usury laws that limit the amount of interest that can
be charged and paid on loans, which includes debt securities like the MITTS.
Under present New York law, the maximum rate of interest is 25% per annum on a
simple interest basis. This limit may not apply to debt securities in which
$2,500,000 or more has been invested.

     While we believe that New York law would be given effect by a state or
Federal court sitting outside of New York, many other states also have laws
that regulate the amount of interest that may be charged to and paid by a
borrower. We will promise, for the benefit of the MITTS holders, to the extent
permitted by law, not to voluntarily claim the benefits of any laws concerning
usurious rates of interest.

Purchases and sales by us and our affiliates may affect your return.

     We and our affiliates may from time to time buy or sell the securities
included in the portfolio and shares underlying the ADRs included in the
portfolio for our own accounts for business reasons or in connection with
hedging our obligations under the MITTS Securities. These transactions could
affect the price of these securities and the value of the portfolio in a
manner adverse to your investment in the MITTS Securities.

Potential conflicts of interest.

     Our subsidiary, Merrill Lynch, Pierce, Fenner & Smith Incorporated or
MLPF&S, is our agent for the purposes of calculating the value of the
portfolio and the amount payable to you at maturity. In some circumstances,
MLPF&S's role as our subsidiary and its responsibilities as calculation agent
for the MITTS Securities could give rise to conflicts of interests. These
conflicts could occur, for instance, in connection with its determination as
to whether the value of the portfolio can be calculated on a particular
trading day, or in connection with judgments that it would be required to make
in the event of a discontinuance of the portfolio. See "Description of the
MITTS Securities--Adjustments to the Portfolio; Market Disruption Events" and
"--Discontinuance of the Portfolio" in this prospectus. MLPF&S is required to
carry out its duties as calculation agent in good faith and using its
reasonable judgment. However, you should be aware that because we control
MLPF&S, potential conflicts of interest could arise.

     We have entered into an arrangement with one of our a subsidiaries to
hedge the market risks associated with our obligation to pay amounts due at
maturity on the MITTS Securities. This subsidiary expects to make a profit in
connection with this arrangement. We did not seek competitive bids for this
arrangement from unaffiliated parties.

Other Considerations.

     We suggest that you should reach an investment decision with regard to
the MITTS Securities only after carefully considering the suitability of the
MITTS Securities in the light of your particular circumstances.

     You should also consider the tax consequences of investing in the MITTS
Securities and should consult your tax adviser.
    


<PAGE>


   
                           MERRILL LYNCH & CO., INC.

     We are a holding company that, through our U.S. and non-U.S. subsidiaries
and affiliates such as Merrill Lynch, Pierce, Fenner & Smith Incorporated,
Merrill Lynch Government Securities Inc., Merrill Lynch Capital Services,
Inc., Merrill Lynch International, Merrill Lynch Capital Markets Bank Ltd.,
Merrill Lynch Asset Management L.P. and Merrill Lynch Mercury Asset
Management, provides investment, financing, advisory, insurance, and related
products on a global basis, including:

     o    securities brokerage, trading and underwriting;

     o    investment banking, strategic services, including mergers and
          acquisitions and other corporate finance advisory activities;

     o    asset management and other investment advisory and recordkeeping
          services;

     o    trading and brokerage of swaps, options, forwards, futures and other
          derivatives;

     o    securities clearance services;

     o    equity, debt and economic research;

     o    banking, trust and lending services, including mortgage lending and
          related services; and

     o    insurance sales and underwriting services.

We provide these products and services to a wide array of clients, including
individual investors, small businesses, corporations, governments,
governmental agencies and financial institutions.

     Our principal executive office is located at World Financial Center,
North Tower, 250 Vesey Street, New York, New York 10281; our telephone number
is (212) 449-1000.

     If you want to find more information about us, please see the sections
entitled "Where You Can Find More Information" and "Incorporation of
Information We File with the SEC" in this prospectus.

     In this prospectus, "ML&Co.", "we", "us" and "our" refer specifically to
Merrill Lynch & Co., Inc., the holding company. ML&Co. is the issuer of the
MITTS Securities described in this prospectus.
    


<PAGE>


   
                      RATIO OF EARNINGS TO FIXED CHARGES

     In 1998, we acquired the outstanding shares of Midland Walwyn, Inc., in a
transaction accounted for as a pooling-of-interests. The following information
for the fiscal years 1994 through 1997 has been restated as if the two
entities had always been combined.

     The following table sets forth our historical ratios of earnings to fixed
charges for the periods indicated:

                                           Year Ended Last Friday in December
                                       1994     1995     1996     1997      1998
                                       -----------------------------------------

Ratio of earnings to fixed charges(a)  1.2      1.2      1.2      1.2      1.1
- ----------
(a)  The effect of combining Midland Walwyn did not change the ratios reported
     for the fiscal years 1994 through 1997.

     For the purpose of calculating the ratio of earnings to fixed charges,
"earnings" consist of earnings from continuing operations before income taxes
and fixed charges, excluding capitalized interest and preferred security
dividend requirements. "Fixed charges" consist of interest costs, the interest
factor in rentals, amortization of debt issuance costs, preferred security
dividend requirements of subsidiaries, and capitalized interest.
    



<PAGE>


   
                      DESCRIPTION OF THE MITTS SECURITIES

     On December 30, 1993, Merrill Lynch & Co., Inc. ("ML&Co.") issued an
aggregate principal amount of $31,000,000 or 3,100,000 units of the MITTS
Securities.

     The MITTS Securities were issued as a series of Senior Debt Securities
under the 1983 Indenture which is more fully described in this prospectus.

     The MITTS Securities will mature on June 30, 1999.

     While at maturity a beneficial owner of a MITTS Security may receive an
amount in excess of the principal amount of the MITTS Security if the Closing
Portfolio Value exceeds the Original Portfolio Value, there will be no payment
of interest, periodic or otherwise, before maturity. (See "--Payment at
Maturity", below.)

     The MITTS Securities are not subject to redemption by ML&Co. or at the
option of any Holder before maturity. Upon the occurrence of an Event of
Default with respect to the MITTS Securities, Holders of the MITTS Securities
may accelerate the maturity of the MITTS Securities, as described under
"--Events of Default and Acceleration" and "Other Terms--Events of Default" in
this Prospectus.

     The MITTS Securities were issued in denominations of whole units.

Payment at Maturity .

     The "Payment at Maturity" for a MITTS Security will be determined by the
calculation agent and will equal:

                        $10     X    Closing Portfolio Value
                                     -----------------------
                                              $100

provided,  however,  that the amount payable at maturity will not be less than
$9 for each $10 principal amount of MITTS Securities (the "Minimum Payment").

     The "Original Portfolio Value" equals 100, based on the prices and
Multipliers of the portfolio securities on December 22, 1993.

     If the Closing Portfolio Value is equal to $90 or less, a beneficial
owner of a MITTS Security will receive the Minimum Payment of $9 for each $10
principal amount of the MITTS Securities at maturity. If the Closing Portfolio
Value is between $90 and $100, a beneficial owner of a MITTS Security will
receive between $9 and $10 for each $10 principal amount of the MITTS
Securities at maturity.

     The "Closing Portfolio Value" will be determined by MLPF&S, an affiliate
of ML&Co., or ML&Co.'s successor (the "calculation agent"), and will equal the
sum of the products of the Average Market Price and the applicable Multiplier
for each portfolio security.

     The "Average Market Price" of a portfolio security will equal the
average, or mean, of the Market Prices of that portfolio security determined
on each of the first forty-five Calculation Days with respect to that
portfolio security during the Calculation Period. If there are fewer than
forty-five Calculation Days with respect to a portfolio security, then the
Average Market Price with respect to that portfolio security will equal the
average, or mean, of the Market Prices on the Calculation Days, and if there
is only one Calculation Day, then the Average Market Price will equal the
Market Price on the Calculation Day.

     The "Calculation Period" means the period from and including the
ninetieth scheduled NYSE Trading Day, as defined below, before the maturity
date to and including the fourth scheduled NYSE Trading Day before the
maturity date. "Calculation Day" with respect to a portfolio security means
any Trading Day during the Calculation Period in the country in which the
portfolio security is being priced on which a Market Disruption Event has not
occurred. If a Market Disruption Event occurs on all Trading Days in that
country during the Calculation Period then the fourth scheduled NYSE Trading
Day before the maturity date in that country will be deemed a Calculation Day,
notwithstanding the Market Disruption Event; provided, however, that if the
fourth scheduled NYSE Trading Day is not a Trading Day in that country, then
the immediately preceding Trading Day shall instead be deemed a Calculation
Day. Any reference to a specific day in this prospectus shall mean the
calendar day in each market in which portfolio securities are priced.
    

     "Market Price" means for a Calculation Day the following:

   
     (a)  If the portfolio security is listed on a national securities
          exchange in the United States, is a NASDAQ National Market System
          ("NASDAQ NMS") security or is included in the OTC Bulletin Board
          Service ("OTC Bulletin Board") operated by the National Association
          of Securities Dealers, Inc., Market Price means:

               (a) the last reported sale price, regular way, on the day on
          the principal United States securities exchange registered under the
          Exchange Act on which the portfolio security is listed or admitted
          to trading, or

               (b) if not listed or admitted to trading on any securities
          exchange or if the last reported sale price is not obtainable, the
          last reported sale price on the over-the-counter market as reported
          on the NASDAQ NMS or OTC Bulletin Board on that day, or

               (c) if the last reported sale price is not available pursuant to
          (a) and (b) above, the mean of the last reported bid and offer price
          on the over-the-counter market as reported on the NASDAQ NMS or OTC
          Bulletin Board on that day as determined by the calculation agent.

     (b)  The term "NASDAQ NMS security" shall include a security included in
          any successor to the system and the term "OTC Bulletin Board
          Service" shall include any successor service to the system.

     (c)  If the portfolio security is not listed on a national securities
          exchange in the United States or is not a NASDAQ NMS security or
          included in the OTC Bulletin Board operated by the NASD, Market
          Price means the last reported sale price on the day on the
          securities exchange on which the portfolio security is listed or
          admitted to trading with the greatest volume of trading for the
          calendar month preceding that day as determined by the calculation
          agent, provided that if the last reported sale price is for a
          transaction which occurred more than four hours before the close of
          that exchange, then the Market Price shall mean the average, or
          mean, of the last available bid and offer price on that exchange.

     (d)  If the portfolio security is not listed or admitted to trading on
          any securities exchange or if the last reported sale price or bid
          and offer are not obtainable, the Market Price shall mean the last
          reported sale price on the over-the-counter market with the greatest
          volume of trading as determined by the calculation agent, provided
          that if the last reported sale price is for a transaction which
          occurred more than four hours before the time when trading in that
          over-the-counter market typically ends, then the Market Price shall
          mean the average, or mean, of the last available bid and offer
          prices in that market of the three dealers which have the highest
          volume of transactions in the Portfolio Security in the immediately
          preceding calendar month as determined by the calculation agent
          based on information that is reasonably available to it. If prices
          are quoted in a currency other than in U.S. Dollars, these prices
          will be translated into U.S. Dollars for purposes of calculating the
          Average Market Price using the Spot Rate on the same calendar day as
          the date of that price.

     (e)  The "Spot Rate" on any date will be determined by the calculation
          agent and will equal the spot rate of the currency per U.S. $1.00 on
          that date at approximately 3: 00 p.m., New York City time, as
          reported on the information service operated by Bloomberg, L.P.
          ("Bloomberg") representing the mean of certain dealers in that
          currency or, if Bloomberg has not reported the rate by 3:30 p.m.,
          New York City time, on that day, the offered spot rate of that
          currency per U.S. $1.00 on that date for a transaction amount in an
          amount customary for that market on the date quoted at approximately
          3:30 p.m., New York City time, by a leading bank in the foreign
          exchange markets as may be selected by the calculation agent.

     If the calculation agent is required to use the bid and offer price for a
Portfolio Security to determine the Market Price of that Portfolio Security
pursuant to the foregoing, the calculation agent shall not use any bid or
offer price announced by MLPF&S or any other affiliate of ML&Co.

     "NYSE Trading Day" shall mean a day on which trading is generally
conducted in the over-the-counter market for equity securities in the United
States and on the New York Stock Exchange as determined by the calculation
agent.

     "Trading Day" shall mean a day on which trading is conducted on the
principal securities exchanges in the country in which the portfolio security
is being priced.

     "Market Disruption Event" means either of the following events, as
determined by the calculation agent:

     (a)  the suspension or material limitation on trading of that portfolio
          security in the country in which the portfolio security is being
          priced for more than two hours of trading, or during the period
          one-half hour before the time that the portfolio security is to be
          priced, or

     (b)  the suspension or material limitation, in each case, for more than
          two hours of trading, whether by reason of movements in price
          otherwise exceeding levels permitted by the relevant exchange or
          otherwise, in

          (1)  option contracts related to the portfolio securities, or

          (2)  options on futures contracts, which traded on any exchange in
               the country in which the portfolio security is being priced for
               more than two hours of trading or for during the period one
               half hour before the time that a portfolio security is to be
               priced.

     For the purposes of clause (a) above with respect to portfolio securities
that are priced in the United States, limitations pursuant to NYSE Rule 80A on
trading during significant market fluctuations under NYSE Rule 80A, or any
applicable rule or regulation enacted or promulgated by the NYSE or any other
self regulatory organization or the SEC of similar scope as determined by the
calculation agent, will be considered "material".

     All determinations made by the calculation agent shall be at the sole
discretion of the calculation agent and, in the absence of manifest error,
shall be conclusive for all purposes and binding on ML&Co. and beneficial
owners of the MITTS Securities. All percentages resulting from any calculation
on the MITTS Securities will be rounded to the nearest one hundred-thousandth
of a percentage point, with five one-millionths of a percentage point rounded
upwards, for example, 9.876545%, or .09876545, would be rounded to 9.87655%,
or .0987655, and all dollar amounts used in or resulting from that calculation
will be rounded to the nearest cent with one-half cent being rounded upwards.

     In some circumstances, the duties of MLPF&S as calculation agent in
determining the existence of Market Disruption Events could conflict with the
interests of MLPF&S as a subsidiary of ML&Co.
    

Portfolio Securities

   
     The securities listed below were used to calculate the Original Portfolio
Value. Holders of the MITTS will not have any right to receive the portfolio
securities or the underlying shares. The following table sets forth the
portfolio securities, the percentage of each portfolio security in the
Original Portfolio Value and their Initial Multipliers:
    


<PAGE>

<TABLE>
<CAPTION>

   
                                                                                  % of Portfolio                        
                                                                                      Value                             
                                                                                   Represented                          
           Issuer of the                 Country in                                in Original            Initial
       Portfolio  Security           Which  Organized           ADR            Portfolio Value       Multiplier 

<S>                                  <C>                        <C>            <C>                   <C>

    
Alcatel Alsthom Compagnie
  Generale d'Electricite(1).....     France                       Yes                 4.167%             0.145560
Banco de Santander S.A.(1)......     Spain                        Yes                 4.167%             0.084388
Bayer A.G.(3)...................     Germany                       No                 4.167%             0.019832
Benetton Group S.p.A.(1)........     Italy                        Yes                 4.167%             0.130719
The British Petroleum Co., plc.(1)
                                     United Kingdom               Yes                 4.167%             0.064977
British Telecom-
   
 Munications plc.(1)...........     United Kingdom               Yes                 4.167%             0.056402
= ===========
Cadbury Schweppes plc(1)........     United Kingdom               Yes                 4.167%             0.136054
Deutsche Bank A.G.(3)...........     Germany                       No                 4.167%             0.008103
L.M. Ericsson Telephone
    
  Co., Inc. (1).................     Sweden                       Yes                 4.167%             0.103842
Grand Metropolitan plc(1)            United Kingdom               Yes                 4.167%             0.148810
Hanson plc(1)...................     United Kingdom               Yes                 4.167%             0.205761
Hoechst A.G.(3).................     Germany                       No                 4.167%             0.023662
Nestle S.A.(3)..................     Switzerland                   No                 4.167%             0.004792
Philips Electronics N.V.(2).....     Netherlands                   No                 4.167%             0.198413
Reuters Holdings plc(1).........     United Kingdom               Yes                 4.167%             0.051125
Rhone-Poulenc S.A.(1)...........     France                       Yes                 4.167%             0.166667
Royal Dutch Petroleum Co.(2)         Netherlands                   No                 4.167%             0.039683
Siemens A.G.(3).................     Germany                       No                 4.167%             0.009207
Societe Nationale
  Elf Aquitaine(1)..............     France                       Yes                 4.167%             0.115741
Telefonica de Espana, S.A.(1)...     Spain                        Yes                 4.167%             0.104167
Total S.A.(1)...................     France                       Yes                 4.167%             0.153610
Unilever plc(1).................     United Kingdom               Yes                 4.167%             0.057870
Vodaphone Group plc(1)..........     United Kingdom               Yes                 4.167%             0.047755
Waste Management
  International plc(1)..........     United Kingdom               Yes                 4.167%             0.234742
- ---------------
(1)  As represented in the Portfolio by American Depositary Receipts.
(2)  As represented in the Portfolio by ordinary shares traded in U.S. dollars.
(3)  As represented in the Portfolio by ordinary shares traded outside the U.S. and denominated in other than U.S. dollars.

</TABLE>


   
     The initial Multiplier relating to each portfolio security indicates the
number of the portfolio security, given the market price of that portfolio
security, required to be included in the calculation of the Original Portfolio
Value so that each portfolio security represents an equal percentage of the
Original Portfolio Value on December 22, 1993.

     The price of each portfolio security used to calculate the initial
Multiplier relating to each portfolio security was the closing price of that
portfolio security on December 22, 1993. The respective Multipliers will
remain constant for the term of the MITTS Securities unless adjusted for
certain corporate events, as described below.

     The value of the portfolio, for any day, will equal the sum of the
products of the most recently available Market Prices, determined as described
in this prospectus, and the applicable Multipliers for the portfolio
securities. The Closing Portfolio Value, however, is calculated based on
averaging Market Prices for certain days.

     The calculation agent currently intends to publish the portfolio value
once on each business day. The calculation agent currently calculates and
publishes values of approximately 1,100 specified portfolios. The calculation
agent currently provides information concerning the portfolios to the
electronic reporting services operated by Bloomberg and to newspapers and
specialized trade publications. If the calculation agent does publish
portfolio values, the calculation agent currently intends to provide these
values to similar sources described above, but there can be no assurance that
the information will ultimately be published by these sources. In addition,
the calculation agent will provide the portfolio value upon request, and will
provide the portfolio value once each business day to the NYSE which has
agreed to report the portfolio value on its electronic transaction reporting
services under the symbol "MEP".

American Depositary Receipts.

     Some of the portfolio securities are in the form of American Depositary
Receipts or ADRs. An ADR is a negotiable receipt which is issued by a
depositary, generally a bank, representing shares of a foreign issuer that
have been deposited and are held, on behalf of the holders of the ADRs, at a
custodian bank in the foreign issuer's home country. While the market for
shares underlying the ADRs will generally be in the country in which the
foreign issuer is organized, and trading in the market will generally be based
on that country's currency, ADRs that are included in the portfolio will trade
in U.S. Dollars.

     Although ADRs are distinct securities from their underlying shares, the
trading characteristics and valuations of ADRs will usually, but not
necessarily, mirror the characteristics and valuations of their underlying
shares. Active trading volume and efficient pricing in the principal market in
the home country for the underlying shares will usually indicate similar
characteristics in respect of the ADRs. In the case of certain ADRs, however,
there may be inadequate familiarity with or information about the foreign
issuer of the underlying shares represented by the ADR in the market in which
the ADR trades to support active volume, thus resulting in pricing
distortions. This is more likely to occur when the ADR is not listed on a U.S.
stock exchange or quoted on the National Market System of the National
Association of Securities Dealers Automated Quotations System, and trades only
in the over-the-counter market, because the foreign issuer is not required to
register these ADRs under the Securities Exchange Act of 1934, as is the case
with ADRs so listed or quoted. In addition, because of the size of an offering
of underlying shares in ADR form outside the home country and/or other factors
that have limited or increased the float of certain ADRs, the liquidity of
these securities may be less than or greater than that with respect to the
underlying shares. Inasmuch as holders of ADRs may surrender the ADR in order
to take delivery of and trade the underlying shares, a characteristic that
allows investors in ADRs to take advantage of price differentials between
different markets, a market for the underlying shares that is not liquid will
generally result in an illiquid market for the ADR representing these
underlying shares.

     The depositary bank that issues an ADR generally charges a fee, based on
the price of the ADR, upon issuance and cancellation of the ADR. This fee
would be in addition to the brokerage commissions paid upon the acquisition or
surrender of the security. In addition, the depositary bank incurs expenses in
connection with the conversion of dividends or other cash distributions paid
in local currency into U.S. Dollars and these expenses are deducted from the
amount of the dividend or distribution paid to holders, resulting in a lower
payout per underlying share represented by the ADR than would be the case if
the underlying share were held directly. Furthermore, foreign investment laws
in certain countries may restrict ownership by foreign nationals of certain
classes of underlying shares. Accordingly, the ADR representing this class of
securities may not possess voting rights, if any, equivalent to those in
respect of the underlying shares. There may be tax considerations, including
tax rate differentials, arising from application of the tax laws of one nation
to the nationals of another and from certain practices in the ADR market may
also exist with respect to some ADRs. In varying degrees, any or all of these
factors may affect the value of the ADR compared with the value of the
underlying shares in the home market of the issuer.

Adjustments to the Multiplier and Portfolio.

     The Multiplier with respect to any portfolio security and the portfolio
will be adjusted as follows:

          1. If a portfolio security is subject to a stock split or reverse
     stock split or a portfolio security that is an ADR is subject to a
     similar adjustment, then once the split has become effective, the
     Multiplier relating to that portfolio security will be adjusted to equal
     the product of the number of shares issued with respect to one share of
     that portfolio security, or the number of receipts issued with respect to
     one ADR if a portfolio security is an ADR, and the prior multiplier.

          2. If a portfolio security is subject to a stock dividend, i.e.
     issuance of additional shares of the portfolio security, that is given
     equally to all holders of shares of the issuer of that portfolio
     security, then once the dividend has become effective and that portfolio
     security is trading ex-dividend, the Multiplier will be adjusted so that
     the new Multiplier shall equal the former Multiplier plus the product of
     the number of shares of that portfolio security issued with respect to
     one share of that portfolio security and the prior multiplier.

          3. There will be no adjustments to the Multipliers to reflect cash
     dividends or distributions paid with respect of a portfolio security
     other than for Extraordinary Dividends as described below. A cash
     dividend with respect to a portfolio security will be deemed to be an
     "Extraordinary Dividend" if that dividend exceeds the immediately
     preceding non-Extraordinary Dividend for that portfolio security by an
     amount equal to at least 10% of the Market Price on the Trading Day
     preceding the record day for the payment of that Extraordinary Dividend,
     or the "ex-dividend date". If an Extraordinary Dividend occurs with
     respect to a portfolio security, the Multiplier with respect to that
     portfolio security will be adjusted on the ex-dividend date with respect
     to the Extraordinary Dividend so that the new Multiplier will equal the
     product of

          o    the then current Multiplier, and

          o    a fraction, the numerator of which is the sum of the
               Extraordinary Dividend Amount and the Market Price on the
               Trading Day preceding the ex-dividend date, and the denominator
               of which is the Market Price on the Trading Day preceding the
               ex-dividend date.

     The "Extraordinary Dividend Amount" with respect to an Extraordinary
     Dividend for a portfolio security will equal the Extraordinary Dividend
     minus the amount of the immediately preceding non-Extraordinary Dividend
     for the portfolio security.

          4. If the issuer of a portfolio security, or, if a portfolio
     security is an ADR, the issuer of the underlying share, is being
     liquidated or is subject to a proceeding under any applicable bankruptcy,
     insolvency or other similar law, that portfolio security will continue to
     be included in the portfolio so long as a Market Price for that portfolio
     security is available. If a Market Price is no longer available for a
     portfolio security for whatever reason, including the liquidation of the
     issuer of that portfolio security or the subjection of the issuer of that
     portfolio security to a proceeding under any applicable bankruptcy,
     insolvency or other similar law, then the value of that portfolio
     security will equal zero in connection with calculating portfolio value
     and Closing Portfolio Value for so long as no Market Price is available,
     and no attempt will be made to find a replacement stock or increase the
     value of the portfolio to compensate for the deletion of that portfolio
     security.

          5. If the issuer of a portfolio security, or, if a portfolio
     security is an ADR, the issuer of the underlying share, has been subject
     to a merger or consolidation and is not the surviving entity or is
     nationalized, then a value for that portfolio security will be determined
     at the time the issuer is merged or consolidated or nationalized and will
     equal the last available Market Price for that portfolio security and
     that value will be constant for the remaining term of the securities. At
     that time, no adjustment will be made to the Multiplier of that portfolio
     security. ML&Co. may at its sole discretion increase the last available
     Market Price to reflect payments or dividends of cash, securities or
     other consideration to holders of the portfolio security in connection
     with any merger or consolidation which may not be reflected in the last
     available Market Price.

          6. If the issuer of a portfolio security issues to all of its
     shareholders equity securities of an issuer other than the issuer of the
     portfolio security, then these new equity securities will be added to the
     portfolio as a new portfolio security. The Multiplier for these new
     portfolio security will equal the product of the original Multiplier with
     respect to the portfolio security for which the new portfolio security is
     being issued (the "Original Portfolio Security") and the number of shares
     of the new portfolio security issued with respect to one share of the
     Original Portfolio Security.

          7. If an ADR is no longer listed or admitted to trading on a United
     States securities exchange registered under the Exchange Act, is no
     longer a NASDAQ NMS security or is no longer included in the OTC Bulletin
     Board operated by the NASD, then the underlying shares represented by
     that ADR will be deemed to be a new portfolio security and that ADR will
     no longer constitute a portfolio security. The initial Multiplier for the
     new portfolio security will equal the last value of the Multiplier for
     that ADR multiplied by the number of shares of underlying shares
     represented by a single ADR.

     No adjustments of any Multiplier of a portfolio security will be required
unless that adjustment would require a change of at least 1% in the Multiplier
then in effect. The Multiplier resulting from any of the adjustments specified
above will be rounded to the nearest one thousandth with five ten-thousandths
being rounded upward.

     The calculation agent will make no adjustments to the Multiplier of any
portfolio security or to the portfolio other than those specified above.
    


<PAGE>


Hypothetical Payments

   
     The following table illustrates, for a range of hypothetical Closing
Portfolio Values, the amount payable at maturity for each unit of MITTS
Securities. An investment in the portfolio securities would be significantly
different than investing in the MITTS Securities. Among other things, an
investor in the portfolio securities may realize certain dividends that are
not reflected by investing in the MITTS Securities, and currency fluctuations
may significantly increase or decrease the rate of return of the portfolio
securities versus investing in the MITTS Securities.
    


                                                            Payment at Maturity
 Hypothetical Closing        Percentage Change               per $10 Principal
   Portfolio Value         in the Portfolio Level          Amount of Securities
        $ 0.00                    -100.00%                        $ 9.00
       $ 10.00                     -90.00%                        $ 9.00
       $ 20.00                     -80.00%                        $ 9.00
       $ 30.00                     -70.00%                        $ 9.00
       $ 40.00                     -60.00%                        $ 9.00
       $ 50.00                     -50.00%                        $ 9.00
       $ 60.00                     -40.00%                        $ 9.00
       $ 70.00                     -30.00%                        $ 9.00
       $ 80.00                     -20.00%                        $ 9.00
       $ 90.00                     -10.00%                        $ 9.00
       $100.00                       0.00%                        $10.00
       $110.00                      10.00%                        $11.00
       $120.00                      20.00%                        $12.00
       $130.00                      30.00%                        $13.00
       $140.00                      40.00%                        $14.00
       $150.00                      50.00%                        $15.00
       $160.00                      60.00%                        $16.00
       $170.00                      70.00%                        $17.00
       $180.00                      80.00%                        $18.00
       $190.00                      90.00%                        $19.00
       $200.00                     100.00%                        $20.00

   
     The above figures are for purposes of illustration only. The actual
amount payable at maturity with respect to the MITTS Securities will depend
entirely on the actual Closing Portfolio Value.

     The investor will not receive their entire principal at maturity should
the portfolio decline in value. The investor will only receive $9.00 for each
$10 principal amount of MITTS Securities, or 90% of their original investment,
should the portfolio decline in value by 10% or more.
    

Events of Default and Acceleration

   
     In case an Event of Default with respect to any MITTS Securities has
occurred and is continuing, the amount payable to a holder of a MITTS Security
upon any acceleration permitted by the MITTS Securities will be equal to the
amount payable calculated as though the date of early repayment were the
maturity date of the MITTS Securities. See "Description of Securities--Payment
at Maturity" in this Prospectus. If a bankruptcy proceeding is commenced in
respect of ML&Co., the claim of the holder of a MITTS Security may be limited,
under Section 502(b)(2) of Title 11 of the United States Code, to the
principal amount of the MITTS Security plus an additional amount, if any, of
contingent interest calculated as though the date of the commencement of the
proceeding were the maturity date of the MITTS Securities.

     In case of default in payment at the maturity date of the MITTS
Securities, whether at their stated maturity or upon acceleration, from and
after the maturity date the MITTS Securities shall bear interest, payable upon
demand of the holders of the MITTS Securities, at the rate of 6% per annum, to
the extent that payment of any interest shall be legally enforceable, on the
unpaid amount due and payable on that date in accordance with the terms of the
MITTS Securities to the date payment of any amount has been made or duly
provided for.

 Global Securities

     Description of the Global Securities

     Beneficial owners of the MITTS Securities may not receive physical
delivery of the MITTS Securities nor may they be entitled to have the MITTS
Securities registered in their names. The MITTS Securities currently are
represented by one or more fully registered global securities. Each global
security was deposited with, or on behalf of, The Depository Trust Company or
DTC (DTC, together with any successor to DTC, being a "depositary"), as
depositary, registered in the name of Cede & Co., DTC's partnership nominee .
Unless and until it is exchanged in whole or in part for MITTS Securities in
definitive form, no global security may be transferred except as a whole by
the depositary to a nominee of the depositary or by a nominee of the
depositary to the depositary or another nominee of the depositary or by the
depositary or any nominee to a successor of the depositary or a nominee of
that successor.

     So long as DTC, or its nominee, is a registered owner of a global
security, DTC or its nominee, as the case may be, will be considered the sole
owner or holder of the MITTS Securities represented by a global security for
all purposes under the 1983 Indenture. Except as provided below, the
beneficial owners of the MITTS Securities represented by a global security
will not be entitled to have the MITTS Securities represented by the global
security registered in their names, will not receive or be entitled to receive
physical delivery of the MITTS Securities in definitive form and will not be
considered the owners or holders under the 1983 Indenture, including for
purposes of receiving any reports delivered by ML&Co. or the Trustee under the
1983 Indenture. Accordingly, each person owning a beneficial interest in a
global security must rely on the procedures of DTC and, if that person is not
a participant of DTC on the procedures of the participant through which that
person owns its interest, to exercise any rights of a holder under the 1983
Indenture. ML&Co. understands that under existing industry practices, in the
event that ML&Co. requests any action of holders or that an owner of a
beneficial interest in a global security desires to give or take any action
which a holder is entitled to give or take under the 1983 Indenture, DTC would
authorize the participants holding the relevant beneficial interests to give
or take any action, and the participants would authorize beneficial owners
owning through those participants to give or take action or would otherwise
act upon the instructions of beneficial owners. Conveyance of notices and
other communications by DTC to participants, by participants to indirect
participants and by participants and indirect participants to beneficial
owners will be governed by arrangements among them, subject to any statutory
or regulatory requirements as may be in effect from time to time.

     DTC Procedures

     The following is based on information furnished by DTC:

     DTC is the securities depositary for the MITTS Securities. The MITTS
Securities were issued as fully registered securities registered in the name
of Cede & Co., DTC's partnership nominee. One or more fully registered global
securities were issued for the MITTS Securities in the aggregate principal
amount of the MITTS Securities, and were deposited with DTC.

     DTC is a limited-purpose trust company organized under the New York
Banking Law, a "banking organization" within the meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing corporation"
within the meaning of the New York Uniform Commercial Code, and a "clearing
agency" registered under to the provisions of Section 17A of the Securities
and Exchange Act of 1934, as amended. DTC holds securities that its
participants deposit with DTC. DTC also facilitates the settlement among
participants of securities transactions, such as transfers and pledges, in
deposited securities through electronic computerized book-entry changes in
participants' accounts, thereby eliminating the need for physical movement of
securities certificates. Direct participants of DTC include securities brokers
and dealers, banks, trust companies, clearing corporations and other
organizations. DTC is owned by a number of its direct participants and by the
NYSE, the American stock Exchange and the NASD, Inc. Access to DTC's system is
also available to others such as securities brokers and dealers, banks and
trust companies that clear through or maintain a custodial relationship with a
direct participant, either directly or indirectly. The rules applicable to DTC
and its participants are on file with the SEC.

     Purchases of MITTS Securities under DTC's system must be made by or
through direct participants, which will receive a credit for the MITTS
Securities on DTC's records. The ownership interest of each beneficial owner
is in turn to be recorded on the records of direct and indirect participants.
Beneficial owners will not receive written confirmation from DTC of their
purchase, but beneficial owners are expected to receive written confirmations
providing details of the transaction, as well as periodic statements of their
holdings, from the direct participants or indirect participants through which
the beneficial owner entered into the transaction. Transfers of ownership
interests in the MITTS Securities are to be accomplished by entries made on
the books of participants acting on behalf of beneficial owners.

     To facilitate subsequent transfers, all MITTS Securities deposited with
DTC are registered in the name of DTC's partnership nominee, Cede & Co. The
deposit of MITTS Securities with DTC and their registration in the name of
Cede & Co. effect no change in beneficial ownership. DTC has no knowledge of
the actual beneficial owners of the MITTS Securities; DTC's records reflect
only the identity of the direct participants to whose accounts the MITTS
Securities are credited, which may or may not be the beneficial owners. The
participants will remain responsible for keeping account of their holdings on
behalf of their customers.

     Conveyance of notices and other communications by DTC to direct
participants, by direct participants to indirect participants, and by direct
and indirect participants to beneficial owners will be governed by
arrangements among them, subject to any statutory or regulatory requirements
as may be in effect from time to time.

     Neither DTC nor Cede & Co. will consent or vote with respect to the MITTS
Securities. Under its usual procedures, DTC mails an omnibus proxy to ML&Co.
as soon as possible after the applicable record date. The omnibus proxy
assigns Cede & Co.'s consenting or voting rights to those direct participants
identified in a listing attached to the omnibus proxy to whose accounts the
MITTS Securities are credited on the record date identified in a listing
attached to the omnibus proxy.

     Principal, premium, if any, and/or interest, if any, payments on the
MITTS Securities will be made in immediately available funds to DTC. DTC's
practice is to credit direct participants' accounts on the applicable payment
date in accordance with their respective holdings shown on the depositary's
records unless DTC has reason to believe that it will not receive payment on
that date. Payments by participants to beneficial owners will be governed by
standing instructions and customary practices, as is the case with securities
held for the accounts of customers in bearer form or registered in "street
name", and will be the responsibility of the participant and not of DTC, the
trustee or ML&Co., subject to any statutory or regulatory requirements as may
be in effect from time to time. Payment of principal, premium, if any, and/or
interest, if any, to DTC is the responsibility of ML&Co. or the Trustee,
disbursement of payments to direct participants is the responsibility of DTC,
and disbursement of payments to the beneficial owners is the responsibility of
direct and indirect participants.

     Exchange for Certificated Securities

     If:

     o    the depositary is at any time unwilling or unable to continue as
          depositary and a successor depositary is not appointed by ML&Co.
          within 60 days,

     o    ML&Co. executes and delivers to the trustee a company order to the
          effect that the global securities shall be exchangeable, or

     o    an Event of Default under the 1983 Indenture has occurred and is
          continuing with respect to the MITTS Securities,

the global securities will be exchangeable for MITTS Securities in definitive
form of like tenor and of an equal aggregate principal amount, in
denominations of $10 and integral multiples of $10. The definitive MITTS
Securities will be registered in the name or names as the depositary shall
instruct the trustee. It is expected that instructions may be based upon
directions received by the depositary from participants with respect to
ownership of beneficial interests in the global securities.

     In addition, ML&Co. may decide to discontinue use of the system of
book-entry transfers through the depositary. In that event, MITTS Securities
in definitive form will be printed and delivered.

     The information in this section concerning DTC and DTC's system has been
obtained from sources that ML&Co. believes to be reliable, but ML&Co. takes no
responsibility for its accuracy.

Same-Day Settlement and Payment

     ML&Co. will make all payments in immediately available funds so long as
the MITTS Securities are maintained in book-entry form.


                                 THE PORTFOLIO

     While the portfolio consists of securities of European issuers or ADRs
representing interests in those securities, the portfolio is not intended to
provide an indication of the pattern of price movements of common stocks of
European corporations generally. As of December 22, 1993, all of the portfolio
securities were registered under the Exchange Act, except for the portfolio
securities which are ADRs representing shares in Bayer A.G., Deutsche Bank
A.G., Hoechst A.G., Siemens A.G. and Nestle S.A. Companies with securities
registered under the Exchange Act are required to file periodically certain
financial and other information specified by the SEC, including a
reconciliation of their financial statements to United States generally
accepted accounting principles. As of December 22, 1993, Bayer A.G., Deutsche
Bank A.G., Hoechst A.G., Siemens A.G. and Nestle S.A. had qualified for an
exemption from the reporting requirements of the Exchange Act and had agreed
to provide to the SEC certain financial and other information that the issuer
provides to its shareholders or files with stock exchanges in its home country
or is otherwise required to make public. This information is not required to
contain a reconciliation of their financial statements to United States
generally accepted accounting principles. Information provided to or filed
with the SEC is available at the offices of the SEC specified under "Where you
can find more information" in this Prospectus. Information contained in the
information filed with the SEC will generally be more limited than that
available with respect to a United States issuer. ML&Co. makes no
representation or warranty as to the accuracy or completeness of these
reports. The inclusion of a portfolio security in the portfolio is not a
recommendation to buy or sell the portfolio security or its underlying shares,
and neither ML&Co. nor any of its affiliates make any representation to any
purchaser of securities as to the performance of the portfolio.

     ML&Co. or its affiliates may presently or from time to time engage in
business with one or more of the issuers of the portfolio securities or of the
underlying shares relating to the portfolio securities, including extending
loans to, or making equity investments in, the issuers or providing advisory
services to the issuers, including merger and acquisition advisory services.
In the course of this business, ML&Co. or its affiliates may acquire
non-public information with respect to the issuers and, in addition, one or
more affiliates of ML&Co. may publish research reports with respect to these
issuers. ML&Co. does not make any representation to any purchaser of MITTS
Securities with respect to any matters whatsoever relating to these issuers.
Any prospective purchaser of a MITTS Security should undertake an independent
investigation of the issuers of the underlying shares relating to the
portfolio securities as in its judgment is appropriate to make an informed
decision with respect to an investment in the MITTS Securities.
    

Europe

   
     The issuers of the portfolio securities, or of the shares underlying the
portfolio securities which are ADRs, are companies which have been organized
in countries located in Europe. The amount payable at the maturity of the
Securities is dependent on the value of the portfolio securities and the value
of the portfolio securities will be affected by political and economic
developments in Europe.

     The economies of individual European countries may differ favorably or
unfavorably from the U.S. economy in areas of growth of gross domestic
product, rate of inflation, capital reinvestment, resource self-sufficiency
and balance of payments position. European countries in recent years generally
have experienced weak economic performance and suffer from relatively high
unemployment levels, slow growth, falling industrial competitiveness, and
increasing costs for social welfare programs.
    

     The securities markets of most European countries have substantially
less  trading  volume  than the  securities  markets of the United  States and
Japan. Further, securities of some European companies are less liquid and more
volatile than securities of comparable U.S. companies.  Accordingly,  European
securities  markets  may be  subject to greater  influence  by adverse  events
generally  affecting the market,  and by large investors  trading  significant
blocks of securities or by large  dispositions  of securities than is the case
in the United States.

   
Issuers of the  underlying shares

     Among the issuers of portfolio securities and the underlying shares, 9
are incorporated in the United Kingdom, 4 in the Federal Republic of Germany,
4 in France, 2 in the Netherlands, 2 in Spain, 1 in Italy, 1 in Sweden and 1
in Switzerland. The following table sets forth the issuers of the portfolio
securities and underlying shares, the country in which each issuer is
organized and the primary industry in which each issuer is engaged:
    


<PAGE>


<TABLE>
<CAPTION>


   
Company Name                             Country                                Industry
- ------------                             -------                                --------

<S>                                      <C>                                    <C>
The British Petroleum Co., plc           United Kingdom                         Energy
British Telecommunications plc           United Kingdom                         Telecommunications
Cadbury Schweppes plc                    United Kingdom                         Beverage
Grand Metropolitan plc                   United Kingdom                         Food/Beverage
Hanson plc.                              United Kingdom                         Conglomerate
Reuters Holdings plc.                    United Kingdom                         Media/Publishing
Unilever plc.                            United Kingdom                         Foods
Vodaphone Group plc                      United Kingdom                         Telecommunications
Waste Management International plc       United Kingdom                         Pollution Control
Alcatel Alsthom Compagnie 
Generale d'Electricite                   France                                 Telecommunications
Rhone-Poulenc S.A.                       France                                 Chemicals
Societe Nationale Elf Aquitaine          France                                 Energy
Total S.A.                               France                                 Energy
Bayer A.G.                               Germany                                Chemicals
Deutsche Bank A.G.                       Germany                                Bank
Hoechst A.G.                             Germany                                Chemicals
Siemens A.G.                             Germany                                Electrical Equipment
Philips Electronics N.V.                 Netherlands                            Electrical Equipment
Royal Dutch Petroleum Company            Netherlands                            Energy
Banco de Santander S.A.                  Spain                                  Bank
Telefonica de Espana, S.A.               Spain                                  Telecommunications
Benetton Group S.p.A.                    Italy                                  Retailing
L.M. Ericsson Telephone Co., Inc.        Sweden                                 Telecommunications
Nestle S.A.                              Switzerland                            Foods

</TABLE>

     A potential investor should review the historical prices of the
securities underlying the portfolio. The historical prices of these securities
should not be taken as an indication of future performance, and no assurance
can be given that the prices of these securities will increase sufficiently to
cause the beneficial owners of the Securities to receive an amount in excess
of the Minimum Payment at the maturity of the MITTS Securities.

     The value of the portfolio is reported on the NYSE under the symbol "MEP"
and on Reuters under the symbol ".MGT".

                                  OTHER TERMS

     ML&Co. issued the MITTS Securities as a series of senior debt securities
under the 1983 Indenture, dated as of April 1, 1983, as amended and restated,
between ML&Co. and The Chase Manhattan Bank, as trustee. A copy of the 1983
Indenture is filed as an exhibit to the registration statement relating to the
MITTS Securities of which this prospectus is a part. The following summaries
of the material provisions of the 1983 Indenture are not complete and are
subject to, and qualified in their entirety by reference to, all provisions of
the 1983 Indenture, including the definitions of terms in the 1983 Indenture.

     ML&Co. may issue series of senior debt securities from time to time under
the 1983 Indenture, without limitation as to aggregate principal amount, in
one or more series and upon terms as ML&Co. may establish under the provisions
of the 1983 Indenture .

     The 1983 Indenture and the MITTS Securities are governed by and construed
in accordance with the laws of the State of New York.

     ML&Co. may issue senior debt securities with terms different from those
of senior debt securities previously issued, and issue additional senior debt
securities of a previously issued series of senior debt securities.

     The senior debt securities are unsecured and rank equally with all other
unsecured and unsubordinated indebtedness of ML&Co. However, because ML&Co. is
a holding company, the rights of ML&Co. and its creditors, including the
holders of senior debt securities, to participate in any distribution of the
assets of any subsidiary upon its liquidation or reorganization or otherwise
are necessarily subject to the prior claims of creditors of the subsidiary,
except to the extent that a bankruptcy court may recognize claims of ML&Co.
itself as a creditor of the subsidiary . In addition, dividends, loans and
advances from certain subsidiaries, including MLPF&S, to ML&Co. are restricted
by net capital requirements under the Exchange Act, and under rules of
exchanges and other regulatory bodies.
    

Limitations Upon Liens

   
     ML&Co. may not, and may not permit any majority-owned subsidiary to,
create, assume, incur or permit to exist any indebtedness for borrowed money
secured by a pledge, lien or other encumbrance, other than those liens
specifically permitted by the 1983 Indenture, on the Voting Stock owned
directly or indirectly by ML&Co. of any majority-owned subsidiary, other than
a majority-owned subsidiary which, at the time of the incurrence of the
secured indebtedness, has a net worth of less than $3,000,000, unless the
outstanding senior debt securities are secured equally and ratably with the
secured indebtedness.

     "Voting Stock" is defined in the 1983 Indenture as the stock of the class
or classes having general voting power under ordinary circumstances to elect
at least a majority of the board of directors, managers or trustees of a
corporation provided that, for the purposes of the 1983 Indenture, stock that
carries only the right to vote conditionally on the occurrence of an event is
not considered voting stock whether or not the event has happened.
    

Limitation on Disposition of Voting Stock of, and Merger and Sale of Assets by,
MLPF&S

   
     ML&Co. may not sell, transfer or otherwise dispose of any Voting Stock of
MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of its
Voting Stock, unless, after giving effect to any transaction, MLPF&S remains a
Controlled Subsidiary.

     "Controlled Subsidiary" is defined in the 1983 Indenture to mean a
corporation more than 80% of the outstanding shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

     In addition, ML&Co. may not permit MLPF&S to:

     o    merge or consolidate, unless the surviving company is a Controlled
          Subsidiary, or
    

     o    convey or transfer its properties and assets substantially as an
          entirety, except to one or more Controlled Subsidiaries.

Merger and Consolidation

   
     ML&Co. may consolidate or merge with or into any other corporation and
ML&Co. may sell, lease or convey all or substantially all of its assets to any
corporation, provided that:

     o    the resulting corporation, if other than ML&Co., is a corporation
          organized and existing under the laws of the United States of
          America or any U.S. state and assumes all of ML&Co.'s obligations
          to:

          o    pay any amounts due and payable or deliverable with respect to
               all the senior debt securities; and

          o    perform and observe all of ML&Co.'s obligations under the 1983
               Indenture, and

     o    ML&Co. or the successor corporation, as the case may be, is not,
          immediately after any consolidation or merger, in default under the
          1983 Indenture.
    

Modification and Waiver

   
     ML&Co. and the trustee may modify and amend the 1983 Indenture with the
consent of holders of at least 66 2/3% in principal amount of each outstanding
series of senior debt securities affected. However, without the consent of
each holder of any outstanding senior debt security affected, no amendment or
modification to the 1983 Indenture may:

     o    change the stated maturity date of the principal of, or any
          installment of interest or Additional Amounts payable on, any senior
          debt security or any premium payable on redemption , or change the
          redemption price;

     o    reduce the principal amount of, or the interest or Additional
          Amounts payable on, any senior debt security or reduce the amount of
          principal which could be declared due and payable before the stated
          maturity date;

     o    change the place or currency of any payment of principal or any
          premium, interest or Additional Amounts payable on any senior debt
          security;

     o    impair the right to institute suit for the enforcement of any
          payment on or with respect to any senior debt security;

     o    reduce the percentage in principal amount of the outstanding senior
          debt securities of any series, the consent of whose holders is
          required to modify or amend the 1983 Indenture; or

     o    modify the foregoing requirements or reduce the percentage of
          outstanding senior debt securities necessary to waive any past
          default to less than a majority.

     No modification or amendment of ML&Co.'s Subordinated Indenture or any
Subsequent Indenture for subordinated debt securities may adversely affect the
rights of any holder of ML&Co.'s senior indebtedness without the consent of
each holder affected. The holders of at least a majority in principal amount
of outstanding senior debt securities of any series may, with respect to that
series, waive past defaults under the 1983 Indenture and waive compliance by
ML&Co. with provisions in the 1983 Indenture, except as described under
"--Events of Default".

Events of Default

     Each of the following will be Events of Default with respect to senior
debt securities of any series:

     o    default in the payment of any interest or Additional Amounts payable
          when due and continuing for 30 days;

     o    default in the payment of any principal or premium when due;

     o    default in the deposit of any sinking fund payment, when due;

     o    default in the performance of any other obligation of ML&Co.
          contained in the 1983 Indenture for the benefit of that series or in
          the senior debt securities of that series, continuing for 60 days
          after written notice as provided in the 1983 Indenture;

     o    specified events in bankruptcy, insolvency or reorganization of
          ML&Co.; and

     o    any other Event of Default provided with respect to senior debt
          securities of that series which are not inconsistent with the 1983
          Indenture.

If an Event of Default occurs and is continuing for any series of senior debt
securities, other than as a result of the bankruptcy, insolvency or
reorganization of ML&Co., the trustee or the holders of at least 25% in
principal amount of the outstanding senior debt securities of that series may
declare all amounts, or any lesser amount provided for in the senior debt
securities, due and payable or deliverable immediately. At any time after a
declaration of acceleration has been made with respect to senior debt
securities of any series but before the trustee has obtained a judgment or
decree for payment of money , the holders of a majority in principal amount of
the outstanding senior debt securities of that series may rescind any
declaration of acceleration and its consequences, if all payments due, other
than those due as a result of acceleration, have been made and all Events of
Default have been remedied or waived.

     The holders of a majority in principal amount or aggregate issue price of
the outstanding senior debt securities of that series may waive any Event of
Default with respect to that series, except a default:

     o    in the payment of any amounts due and payable or deliverable under
          the debt securities of that series; or

     o    in respect of an obligation or provision of the 1983 Indenture which
          cannot be modified under the terms of that Indenture without the
          consent of each holder of each outstanding security of each series
          of senior debt securities affected.

     The holders of a majority in principal amount of the outstanding senior
debt securities of a series may direct the time, method and place of
conducting any proceeding for any remedy available to the trustee or
exercising any trust or power conferred on the trustee with respect to those
senior debt securities, provided that any direction shall not be in conflict
with any rule of law or the 1983 Indenture. Before proceeding to exercise any
right or power under the 1983 Indenture at the direction of the holders, the
trustee shall be entitled to receive from the holders reasonable security or
indemnification against the costs, expenses and liabilities which might be
incurred by it in complying with any direction.

     The MITTS Securities and other series of senior debt securities issued
under the 1983 Indenture do not have the benefit of any cross-default
provisions with other indebtedness of ML&Co.

     ML&Co. is required to furnish to the trustee annually a statement as to
the fulfillment by ML&Co. of all of its obligations under the 1983 Indenture.


                      WHERE YOU CAN FIND MORE INFORMATION

     We file reports, proxy statements and other information with the SEC. Our
SEC filings are also available over the Internet at the SEC's web site at
http://www.sec.gov. You may also read and copy any document we file by
visiting the SEC's public reference rooms in Washington, D.C., New York, New
York, and Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further
information about the public reference rooms. You may also inspect our SEC
reports and other information at the New York Stock Exchange, Inc., 20 Broad
Street, New York, New York 10005.

     We have filed a registration statement on Form S-3 with the SEC covering
the MITTS Securities and other securities. For further information on ML&Co.
and the MITTS Securities, you should refer to our registration statement and
its exhibits. This prospectus summarizes material provisions of contracts and
other documents that we refer you to. Because the prospectus may not contain
all the information that you may find important, you should review the full
text of these documents. We have included copies of these documents as
exhibits to our registration statement of which this prospectus is a part.
    


<PAGE>


   
               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

     The SEC allows us to incorporate by reference the information we file
with them, which means:

     o    incorporated documents are considered part of the prospectus;

     o    we can disclose important information to you by referring you to
          those documents; and

     o    information that we file with the SEC will automatically update and
          supersede this incorporated information.

     We incorporate by reference the documents listed below which were filed
with the SEC under the Exchange Act:

     o    annual report on Form 10-K for the year ended December 25, 1998; and

     o    current reports on Form 8-K dated December 28, 1998, January 19,
          1999, February 17, 1999, February 18, 1999, February 22, 1999,
          February 23, 1999 and March 26, 1999.

         We also incorporate by reference each of the following documents that
we will file with the SEC after the date of this prospectus until this
offering is completed or after the date of this initial registration statement
and before the effectiveness of the registration statement:

     o    reports filed under Sections 13(a) and (c) of the Exchange Act;

     o    definitive proxy or information statements filed under Section 14 of
          the Exchange Act in connection with any subsequent stockholders'
          meeting; and

     o    any reports filed under Section 15(d) of the Exchange Act.

     You should rely only on information contained or incorporated by
reference in this prospectus. We have not, and MLPF&S has not, authorized any
other person to provide you with different information. If anyone provides you
with different or inconsistent information, you should not rely on it. We are
not, and MLPF&S is not, making an offer to sell these securities in any
jurisdiction where the offer or sale is not permitted.

     You should assume that the information appearing in this prospectus is
accurate as of the date of this prospectus only. Our business, financial
condition and results of operations may have changed since that date.

     You may request a copy of any filings referred to above (excluding
exhibits), at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan, Jr., Corporate Secretary's Office, Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.


                             PLAN OF DISTRIBUTION

     This prospectus has been prepared in connection with secondary sales of
the MITTS Securities and is to be used by MLPF&S when making offers and sales
related to market-making transactions in the MITTS Securities.

     MLPF&S may act as principal or agent in these market-making transactions.

     ML&Co. may offer the MITTS Securities on the NYSE or off the exchange in
negotiated transactions or otherwise.

     The distribution of the MITTS Securities will conform to the requirements
set forth in the applicable sections of Rule 2720 of the Conduct Rules of the
NASD.
    


                                    EXPERTS

   
         The consolidated financial statements and the related financial
statement schedule incorporated in this prospectus by reference from the
Annual Report on Form 10-K of Merrill Lynch & Co., Inc. and subsidiaries have
been audited by Deloitte & Touche LLP, independent auditors, as stated in
their reports (which express an unqualified opinion and which report on the
consolidated financial statements includes an explanatory paragraph for the
change in accounting method for certain internal-use software development
costs), which are incorporated herein by reference, and have been so
incorporated in reliance upon the reports of such firm given upon their
authority as experts in accounting and auditing.
    



<PAGE>
   
The  information in this  prospectus is not complete and may be changed.  We may
not sell  these  securities  until the  registration  statement  filed  with the
Securities and Exchange Commission is effective. This prospectus is not an offer
to  sell  these  securities  and it is not  soliciting  an  offer  to buy  these
securities in any state where the offer or sale is not permitted.
    

                              Subject to Completion

   
                   Preliminary Prospectus dated MARCH 29, 1999
    

P R O S P E C T U S

                            MERRILL LYNCH & CO., INC.
     S&P 500 MARKET INDEX TARGET-TERM SECURITIES(SM) DUE SEPTEMBER 16, 2002
   
                              "MITTS(R) SECURITIEs"
                              $10 PRINCIPAL AMOUNT

         THIS  PROSPECTUS IS TO BE USED BY Merrill Lynch & Co.,  MERRILL  LYNCH,
PIERCE, FENNER & SMITH INCORPORATED,  OUR WHOLLY-OWNED  SUBSIDIARY,  WHEN MAKING
OFFERS AND SALES RELATED TO MARKET-MAKING TRANSACTIONS IN THE MITTS SECURITIES.
    


   
<TABLE>
<CAPTION>

THE MITTS SECURITIES:                               PAYMENT AT MATURITY:

<S>  <C>                                          <C>
o    100%  PRINCIPAL  PROTECTION  AT MATURITY     o    ON THE MATURITY DATE, FOR EACH UNIT OF THE
o    NO PAYMENTS  BEFORE THE MATURITY DATE             MITTS SECURITIES YOU OWN, WE WILL PAY YOU
o    Senior unsecured debt securities OF MERRILL       AN AMOUNT EQUAL TO THE SUM OF THE PRINCIPAL
     LYNCH & CO., INC.                                 AMOUNT OF EACH UNIT AND AN ADDITIONAL AMOUNT
o    LINKED TO THE VALUE OF THE S&P 500 INDEX          based on the percentage increase, if any, in
o    THE MITTS  SECURITIES  ARE LISTED ON THE NEW      the VALUE OF THE INDEX, ADJUSTED AS DESCRIBED
     YORK STOCK  EXCHANGE UNDER THE SYMBOL "MIM".      IN THIS PROSPECTUS.
                                                  o    YOU WILL RECEIVE NO LESS THAN THE PRINCIPAL AMOUNT
                                                       OF YOUR MITTS SECURITIES.
</TABLE>
    

   
    

   
                INVESTING IN THE MITTS SECURITIES INVOLVES RISKS.
                     SEE "RISK FACTORS" BEGINNING ON PAGE 3.
    

         Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if this
prospectus  is truthful or  complete.  Any  representation  to the contrary is a
criminal offense.

   
         The SALE PRICE OF THE MITTS  SECURITIES  WILL BE THE PREVAILING  MARKET
PRICE at the time of sale.

                                ----------------
    

                               MERRILL LYNCH & CO.

   
                                ----------------

                     The date of this prospectus is , 1999.

- ---------
     "MITTS" AND "MARKET Index  Target-Term  Securities" ARE REGISTERED  service
     MARKS OWNED BY Merrill Lynch & Co., Inc.

     "STANDARD & POOR'S(R)", "STANDARD & POOR'S 500", "S&P 500(R)", "S&P(R)" AND
     "500",  ARE  TRADEMARKS OF THE  MCGRAW-HILL  COMPANIES,  INC. AND HAVE BEEN
     LICensed FOR USE BY MERRILL LYNCH CAPITAL  SERVICES,  INC. AND ML&CO. IS AN
     AUTHORIZED SUBLICENSEE.
    

   
                                TABLE OF CONTENTS

RISK FACTORS...................................................................6
MERRILL LYNCH & CO., INC.......................................................9
RATIO OF EARNINGS TO FIXED CHARGES............................................10
DESCRIPTION OF THE MITTS SECURITIES...........................................11
THE INDEX.....................................................................16
OTHER TERMS...................................................................19
PROJECTED PAYMENT SCHEDULE....................................................23
WHERE YOU CAN FIND MORE INFORMATION...........................................23
INCORPORATION OF INFORMATION WE FILE WITH THE SEC.............................24
PLAN OF DISTRIBUTION..........................................................25
EXPERTS.......................................................................25
    


   
                                  RISK FACTORS

         YOUR  INVESTMENT IN MITTS  SECURITIES  WILL INVOLVE  RISKS.  YOU SHOULD
CAREFULLY CONSIDER THE FOLLOWING  DISCUSSION OF RISKS BEFORE DECIDING WHETHER AN
INVESTMENT IN MITTS SECURITIES IS SUITABLE FOR YOU.

YOU MAY NOT EARN A RETURN ON YOUR INVESTMENT 

         You should be aware that AT  MATURITY  WE WILL PAY YOU NO MORE THAN $10
FOR EACH UNIT OF THE MITTS  SECURITIES YOU OWN IF THE AVERAGE VALUE OF THE INDEX
OVER FIVE TRADING DAYS SHORTLY BEFORE THE MATURITY DATE IS LESS THAN 813.65, THE
VALUE OF THE INDEX ON THE DATE THE MITTS  SECURITIES  WERE PRICED.  This will be
true even if AT SOME TIME DURING THE LIFE OF THE MITTS SECURITIES,  THE VALUE OF
THE INDEX WAS HIGHER THAN 813.65 BUT LATER FALLS BELOW 813.65.

YOUR YIELD MAY BE LOWER THAN THE YIELD ON A STANDARD DEBT SECURITY OF COMPARABLE
MATURITY

         THE AMOUNT WE PAY YOU AT MATURITY MAY BE LESS THAN THE RETURN YOU COULD
EARN ON OTHER INVESTMENTS.  YOUR YIELD MAY BE LESS THAN THE YIELD YOU WOULD EARN
IF YOU BOUGHT A STANDARD  SENIOR  NON-CALLABLE  DEBT SECURITY OF MERRILL LYNCH &
CO., INC. WITH THE SAME MATURITY DATE.  YOUR INVESTMENT may not reflect the full
opportunity  cost to you WHEN YOU TAKE INTO ACCOUNT factors THAT AFFECT the time
value of money.

THE YIELD ON THE MITTS  SECURITIES  WILL NOT REFLECT THE DIVIDENDS ON THE STOCKS
INCLUDED IN THE INDEX

         Your  return  will not  reflect  the  return  you would  realize if you
actually  owned the stocks  underlying the INDEX and received the dividends paid
on those  stocks  because the INDEX does not reflect the payment of dividends on
the stocks underlying it.

AMOUNTS PAYABLE ON THE MITTS SECURITIES MAY BE LIMITED BY STATE LAW

         New York  State  laws  govern  the  INDENTURE  UNDER  WHICH  THE  MITTS
SECURITIES  WERE  ISSUED.  New York has  usury  laws that  limit  the  amount of
interest that can be charged and paid on loans,  which includes debt  securities
like the MITTS  Securities.  Under  present New York law,  the  maximum  rate of
interest is 25% per annum on a simple interest  basis.  This limit may not apply
to debt securities in which $2,500,000 or more has been invested.
    

         While we believe  that New York law would be given effect by a state or
Federal court sitting outside of New York, many other states also have laws that
regulate  the amount of interest  that may be charged to and paid by a borrower.
We will  promise,  for your  benefit,  to the extent  permitted  by law,  not to
voluntarily  claim  the  benefits  of any  laws  concerning  usurious  rates  of
interest.

   
THERE ARE MANY FACTORS AFFECTING THE TRADING VALUE OF THE MITTS SECURITIES

         THE MITTS  Securities  are listed on the New York Stock  Exchange under
the symbol "MIM".

         WE EXPECT  THAT THE  CREDITWORTHINESS  OF ML&CO.  AND A NUMBER OF OTHER
FACTORS WILL AFFECT the trading  value of the MITTS  Securities in the secondary
market . We expect that the trading  value of the MITTS  Securities  will depend
substantially  on the  extent of the  appreciation,  if any,  of the INDEX  OVER
813.65.  If, however,  you sell your MITTS Securities prior to the maturity date
at a time when the INDEX  exceeds  813.65,  the  price you  receive  may be at a
substantial discount from the amount expected to be payable if THE excess of the
INDEX OVER 813.65 were to prevail until maturity of the MITTS Securities because
of the possible  fluctuation  of the INDEX  between the time of THE sale and the
time AT WHICH THE MITTS SECURITIES MATURE.  Furthermore,  the price at which you
will be able to sell MITTS  Securities  prior to maturity  may be at a discount,
which could be  substantial,  from the principal  amount , if, at THAT time, the
INDEX is below,  equal to, or not  sufficiently  above 813.65.  A discount could
also result from rising interest rates.

         In  addition  to the  value  of the  INDEX,  a number  of  interrelated
factors, including the creditworthiness of ML&CO. and those factors listed below
MAY AFFECT THE TRADING VALUE OF THE MITTS  SECURITIES.  The  relationship  among
these factors is complex,  including how these factors affect the relative value
of the MITTS  SECURITIES.  Accordingly,  you should be aware that factors  other
than the level of the INDEX are likely to affect the MITTS  Securities'  trading
value.  The expected effect on the trading value of the MITTS Securities of each
of the factors  listed  below,  assuming in each case that all other factors are
held constant, is as follows:

         Interest RATES. Because WE WILL PAY, at a minimum, the principal amount
         PER UNIT OF MITTS  SECURITIES at maturity,  WE EXPECT the trading value
         of the MITTS  Securities will likely be affected by changes in interest
         rates. In general,  we anticipate that if U.S. interest rates increase,
         the  trading  value of the  MITTS  Securities  will  decrease.  If U.S.
         interest  rates  decrease,  we expect  the  trading  value of the MITTS
         Securities  to  increase.  Interest  rates  may  also  affect  the U.S.
         economy,  and, in turn, the value of the INDEX.  Rising  interest rates
         may  lower  the value of the INDEX  and,  thus,  the MITTS  Securities.
         Falling  interest  rates may increase the value of the INDEX and, thus,
         may increase the value of the MITTS Securities.

         Volatility of the INDEX. If the volatility of the INDEX  increases,  we
         expect THAT the trading value of the MITTS Securities WILL increase. If
         the volatility of the INDEX decreases, we expect THAT the trading value
         of the MITTS Securities WILL decrease.

         Time REMAINING TO MATURITY.  We believe that before  maturity the MITTS
         Securities  may trade at a value above that which may be inferred  from
         the level of interest rates and the INDEX. This difference will reflect
         a "time premium" due to expectations  concerning the value of the INDEX
         during the period  prior to  maturity of the MITTS  Securities.  As the
         time remaining to maturity of the MITTS Securities decreases,  however,
         we expect this time premium to decrease,  thus  decreasing  the trading
         value of the MITTS Securities.  In addition, the price at which you may
         be  able  to  sell  MITTS  Securities  prior  to  maturity  may be at a
         discount,  which may be substantial,  from the principal  amount of the
         MITTS  Securities if the value of the INDEX is below,  equal to, or not
         sufficiently above 813.65.

         Dividend  RATES in the United  States.  If dividend rates on the stocks
         INCLUDED  IN the  INDEX  increase,  we  expect  the  value of the MITTS
         Securities  to decrease.  Conversely,  if dividend  rates on the stocks
         INCLUDED  IN the  INDEX  decrease,  we  expect  the  value of the MITTS
         Securities  to increase.  However,  in general,  rising U.S.  corporate
         dividend  rates  may  increase  the value of the  INDEX  and,  in turn,
         increase the value of the MITTS  Securities.  Conversely,  falling U.S.
         dividend  rates  may  decrease  the value of the  INDEX  and,  in turn,
         decrease the value of the MITTS Securities.

         The impact of the factors  specified above,  excluding the value of the
INDEX,  may offset,  partially or in whole, any increase in the trading value of
the MITTS  Securities  that is  attributable  to an increase in the value of the
INDEX.  For  example,  an  increase in U.S.  interest  rates may cause the MITTS
Securities to trade at a discount from their initial offering price, even if the
INDEX has appreciated significantly.

         In general, assuming all relevant factors are held constant, the effect
on the  trading  value of the MITTS  Securities  of a given  change in  interest
rates,  INDEX volatility and/or dividend rates of stocks comprising the INDEX is
expected to be less if it occurs later in the term of the MITTS  Securities than
if it occurs  earlier in the term of the MITTS  Securities.  WE EXPECT  THAT THE
effect on the trading value of the MITTS  Securities of a given  appreciation of
the INDEX VALUE in excess of 813.65 to be greater if it occurs later in the term
of the  MITTS  Securities  than if it  occurs  earlier  in the term of the MITTS
Securities, assuming all other relevant factors are held constant.

THE  S&P 500 INDEX 

         POLITICAL,  economic  and other  developments  that  affect  the stocks
underlying  the INDEX MAY ADVERSELY  AFFECT THE VALUE OF THE INDEX AND THEREFORE
THE VALUE OF THE MITTS SECURITIES.
    

OTHER CONSIDERATIONS

   
         It is suggested that you should reach an investment  decision regarding
the MITTS Securities only after YOU carefully considering the suitability of the
MITTS Securities in light of your particular circumstances.

         You should also consider the tax consequences of investing in the MITTS
Securities and should consult your tax advisor.

         OUR WHOLLY-OWNED  SUBSIDIARY,  MERRILL LYNCH, PIERCE, FENNER & SMITH OR
MLPF&S, or its affiliates may from time to time engage in transactions involving
the stocks  underlying  the INDEX for their  proprietary  accounts and for other
accounts under their  management,  which may influence the value of THOSE stocks
and therefore the value of the MITTS Securities.  MLPF&S and its affiliates will
also be the counterparties to the hedge of ML&CO.'S  obligations under the MITTS
Securities.  Accordingly,  under SOME  circumstances,  conflicts of interest may
arise between MLPF&S's responsibilities as CALCULATION AGENT with respect to the
MITTS  Securities  and its  obligations  under  its  hedge  and its  status as a
subsidiary  of  ML&CO.  Under  SOME  circumstances,  the  duties  of  MLPF&S  as
CALCULATION AGENT could conflict with the interests of MLPF&S as an affiliate of
the issuer of the MITTS  Securities,  Merrill  Lynch & Co.,  Inc.,  and with the
interests of the holders of the MITTS SECURITIES.
    


   
                            MERRILL LYNCH & CO., INC.

         WE  ARE  A  HOLDING  COMPANY  THAT,   THROUGH  OUR  U.S.  AND  NON-U.S.
SUBSIDIARIES  AND  AFFILIATES  SUCH AS  MERRILL  LYNCH,  PIERCE,  FENNER & SMITH
INCORPORATED,  MERRILL LYNCH GOVERNMENT  SECURITIES INC.,  MERRILL LYNCH CAPITAL
SERVICES, INC., MERRILL LYNCH INTERNATIONAL,  MERRILL LYNCH CAPITAL MARKETS BANK
LTD.,  MERRILL  LYNCH ASSET  MANAGEMENT  L.P. AND MERRILL  LYNCH  MERCURY  ASSET
MANAGEMENT,  PROVIDES INVESTMENT,  FINANCING,  ADVISORY,  INSURANCE, AND RELATED
PRODUCTS ON A GLOBAL BASIS, INCLUDING:

o    SECURITIES BROKERAGE, TRADING AND UNDERWRITING;

o    INVESTMENT BANKING, STRATEGIC SERVICES,  INCLUDING MERGERS AND ACQUISITIONS
     AND OTHER CORPORATE FINANCE ADVISORY ACTIVITIES;

o    ASSET MANAGEMENT AND OTHER INVESTMENT ADVISORY AND RECORDKEEPING SERVICES;

o    TRADING  AND  BROKERAGE  OF SWAPS,  OPTIONS,  FORWARDS,  FUTURES  AND OTHER
     DERIVATIVES;

o    SECURITIES CLEARANCE SERVICES;

o    EQUITY, DEBT AND ECONOMIC RESEARCH;

o    BANKING, TRUST AND LENDING SERVICES, INCLUDING MORTGAGE LENDING AND RELATED
     SERVICES; AND

o    INSURANCE SALES AND UNDERWRITING SERVICES.

         WE PROVIDE  THESE  PRODUCTS  AND  SERVICES  TO A WIDE ARRAY OF CLIENTS,
INCLUDING INDIVIDUAL  INVESTORS,  SMALL BUSINESSES,  CORPORATIONS,  GOVERNMENTS,
GOVERNMENTAL AGENCIES AND FINANCIAL INSTITUTIONS.

         OUR PRINCIPAL  EXECUTIVE  OFFICE IS LOCATED AT WORLD FINANCIAL  CENTER,
NORTH TOWER, 250 VESEY STREET, NEW YORK, NEW YORK 10281; OUR TELEPHONE NUMBER IS
(212) 449-1000.

         IF YOU WANT TO FIND MORE INFORMATION  ABOUT US, PLEASE SEE THE SECTIONS
ENTITLED "WHERE YOU CAN FIND MORE INFORMATION" AND "INCORPORATION OF INFORMATION
WE FILE WITH THE SEC" IN THIS PROSPECTUS.

         IN THIS PROSPECTUS,  "ML&CO.",  "WE", "US" AND "OUR" REFER SPECIFICALLY
TO MERRILL LYNCH & CO., INC., THE HOLDING  COMPANY.  ML&CO. IS THE ISSUER OF THE
MITTS SECURITIES DESCRIBED IN THIS PROSPECTUS.
    


   
                       RATIO OF EARNINGS TO FIXED CHARGES

         IN 1998, WE ACQUIRED THE OUTSTANDING SHARES OF MIDLAND WALWYN, INC., IN
A TRANSACTION ACCOUNTED FOR AS A POOLING-OF-INTERESTS. THE FOLLOWING INFORMATION
FOR THE FISCAL YEARS 1994 THROUGH 1997 HAS BEEN  RESTATED AS IF THE TWO ENTITIES
HAD ALWAYS BEEN COMBINED.

         THE  FOLLOWING  TABLE SETS FORTH OUR  HISTORICAL  RATIOS OF EARNINGS TO
FIXED CHARGES FOR THE PERIODS INDICATED:

<TABLE>
<CAPTION>
                                                         YEAR ENDED LAST FRIDAY IN DECEMBER
                                                     1994     1995     1996     1997      1998
                                                     -----------------------------------------
<S>                                                   <C>      <C>      <C>      <C>      <C>
RATIO OF EARNINGS TO FIXED CHARGES(A).........        1.2      1.2      1.2      1.2      1.1
</TABLE>
- ----------
(A)  THE EFFECT OF COMBINING  MIDLAND WALWYN DID NOT CHANGE THE RATIOS  REPORTED
     FOR THE FISCAL YEARS 1994 THROUGH 1997.

     FOR THE PURPOSE OF  CALCULATING  THE RATIO OF  EARNINGS  TO FIXED  CHARGES,
"EARNINGS"  CONSIST OF EARNINGS FROM CONTINUING  OPERATIONS  BEFORE INCOME TAXES
AND  FIXED  CHARGES,  EXCLUDING  CAPITALIZED  INTEREST  AND  PREFERRED  SECURITY
DIVIDEND  REQUIREMENTS.  "FIXED CHARGES" CONSIST OF INTEREST COSTS, THE INTEREST
FACTOR IN RENTALS,  AMORTIZATION  OF DEBT  ISSUANCE  COSTS,  PREFERRED  SECURITY
DIVIDEND REQUIREMENTS OF SUBSIDIARIES, AND CAPITALIZED INTEREST.
    


   
                       DESCRIPTION OF THE MITTS SECURITIES

         ON MARCH 14,  1997,  ML&CO.  ISSUED  $175,000,000  AGGREGATE  PRINCIPAL
AMOUNT OF S&P 500 MITTS  SECURITIES DUE SEPTEMBER 16, 2002. THE MITTS SECURITIES
WERE issued as a series of SENIOR DEBT SECURITIES under the 1983 Indenture which
is more fully described IN THIS PROSPECTUS.

         The MITTS Securities will mature on SEPTEMBER 16, 2002.

         While at maturity a beneficial  owner of a MITTS  Security will receive
the principal  amount of THAT MITTS  Security plus the  Supplemental  Redemption
Amount  DESCRIBED  BELOW,  if any,  there will be no other  payment of interest,
periodic or otherwise. SEE "- PAYMENT at Maturity" BELOW.

         The MITTS  Securities are not subject to redemption by ML&CO. or at the
option of any beneficial owner BEFORE maturity.  Upon the occurrence of an Event
of Default with respect to the MITTS Securities,  beneficial owners of the MITTS
Securities  may accelerate  the maturity of the MITTS  Securities,  as described
under "-  EVENTS of  Default  and  Acceleration"  and  "Other  TERMS - EVENTS of
Default" in this PROSPECTUS.

         The MITTS Securities were issued in denominations of whole UNITS.
    

PAYMENT AT MATURITY

   
         At THE maturity  DATE, a beneficial  owner of a MITTS  Security will be
entitled  to receive  the  principal  amount OF EACH UNIT plus THE  Supplemental
Redemption Amount, if any, all as provided below. If the Ending Index Value does
not exceed the Starting Index Value, a beneficial owner of a MITTS Security will
be entitled to receive only the principal amount OF ITS MITTS SECURITIES.

         THE  "SUPPLEMENTAL  REDEMPTION  AMOUNT"  FOR A MITTS  SECURITY  WILL BE
DETERMINED BY THE CALCULATION AGENT AND WILL EQUAL:
    

Principal Amount X Ending Index Value-Starting Index Value X Participation Rate
                   ---------------------------------------
                              Starting Index Value

provided,  however, that in no event will the Supplemental  Redemption Amount be
less than zero.

   
         The "STARTING  INDEX VALUE" equals 813.65,  which was the closing value
of the S&P 500 Index (THE "INDEX") on the date the MITTS  Securities were priced
by ML&CO. for initial sale to the public (THE "PRICING DATE").

         THE "PARTICIPATION RATE" equals 101%.

         The "ENDING INDEX VALUE" will be determined  by THE  CALCULATION  AGENT
and will equal the average OR ARITHMETIC MEAN of the closing values of the Index
determined  on each of the first five  Calculation  Days during the  Calculation
Period.  If there are fewer than five BUT MORE THAN ONE  Calculation  Days, then
the Ending Index Value will equal the average OR ARITHMETIC  MEAN of the closing
values of the Index on THESE  Calculation Days. IF there is only one Calculation
Day,  then the Ending  Index Value will equal the closing  value of the Index on
THAT Calculation Day. If no Calculation Days occur during the Calculation Period
because of Market Disruption Events,  then the Ending Index Value will equal the
closing value of the Index  determined on the last scheduled  Index Business Day
in the Calculation  Period,  regardless of the OCCURRENCE of a Market Disruption
Event on THAT day.

         The  "CALCULATION  PERIOD"  means the  period  from and  including  the
seventh scheduled Index Business Day prior to the maturity date to and including
the second scheduled Index Business Day prior to the maturity date.

         "CALCULATION  DAY" means any Index Business Day during the  Calculation
Period on which a Market Disruption Event has not occurred.

         For purposes of determining  the Ending Index Value, an "INDEX BUSINESS
DAY" is a day on which the NYSE and the  American  Stock  Exchange  are open for
trading and the Index or any Successor  Index,  as defined ON PAGE 10 below,  is
calculated and published.

         All  determinations  made by the CALCULATION AGENT shall be at the sole
discretion  of  the  CALCULATION  AGENT  and,  absent  a  determination  by  the
CALCULATION AGENT of a manifest error,  shall be conclusive for all purposes and
binding on ML&CO. and beneficial owners of the MITTS Securities.
    

         The following table  illustrates,  for a range of  hypothetical  Ending
Index Values,

   
o    the total amount payable at maturity for each $10 principal amount of MITTS
     Securities,

o    the total rate of return to beneficial owners of the MITTS Securities,

o    the  pretax  annualized  rate of  return  to  beneficial  owners  of  MITTS
     Securities and

o    the  pretax  annualized  rate of  return  of an  investment  in the  stocks
     underlying the Index, which includes an assumed aggregate dividend yield of
     1.80% per annum, as more fully described below.
    

<TABLE>
<CAPTION>
                                                                                                        PRETAX
                                               TOTAL AMOUNT                                           ANNUALIZED
                                            PAYABLE AT MATURITY                       PRETAX        RATE OF RETURN
   
                        PERCENTAGE CHANGE    PER $10 PRINCIPAL   TOTAL RATE OF   ANNUALIZED RATE    OF  STOCKS
 HYPOTHETICAL ENDING    OVER THE STARTING        AMOUNT OF          RETURN ON      OF RETURN ON     UNDERLYING THE
     INDEX VALUE           INDEX VALUE       MITTS SECURITIES      THE MITTS        THE MITTS        INDEX(1)(2)
    
                                                                   SECURITIES      SECURITIES(1)
<S>     <C>                   <C>               <C>                 <C>              <C>              <C>
        406.83                 -50%               $10.00              0.00%            0.00%           -10.43%
        488.19                 -40%               $10.00              0.00%            0.00%            -7.30%
        569.56                 -30%               $10.00              0.00%            0.00%            -4.60%
        650.92                 -20%               $10.00              0.00%            0.00%            -2.23%
        732.29                 -10%               $10.00              0.00%            0.00%            -0.12%
        813.65(3)                0%               $10.00              0.00%            0.00%            1.80%
        895.02                  10%               $11.01             10.10%            1.76%            3.56%
        976.38                  20%               $12.02             20.20%            3.37%            5.18%
      1,057.75                  30%               $13.03             30.30%            4.87%            6.69%
      1,139.11                  40%               $14.04             40.40%            6.26%            8.10%
      1,220.48                  50%               $15.05             50.50%            7.56%            9.41%
      1,301.84                  60%               $16.06             60.60%            8.79%            10.66%
      1,383.21                  70%               $17.07             70.70%            9.95%            11.83%
      1,464.57                  80%               $18.08             80.80%           11.05%            12.95%
      1,545.94                  90%               $19.09             90.90%           12.10%            14.01%
      1,627.30                 100%               $20.10             101.00%          13.09%            15.02%
      1,708.67                 110%               $21.11             111.10%          14.04%            16.00%
      1,790.03                 120%               $22.12             121.20%          14.95%            16.83%
</TABLE>
   
 -----------
    

(1)  The  annualized  rates of  return  specified  in the  preceding  table  are
     calculated on a semiannual bond equivalent  basis.  (2) This rate of return
     assumes

   
     o    an  investment  of a fixed amount in the stocks  underlying  the Index
          with the  allocation of THAT amount  reflecting  the current  relative
          weights of THE stocks in the Index;

     o    a percentage  change in the aggregate  price of THE stocks that equals
          the  percentage  change in the Index from the Starting  Index Value to
          the relevant hypothetical Ending Index Value;

     o    a constant  dividend yield of 1.80% per annum, paid quarterly from the
          date of initial delivery of MITTS Securities,  applied to the value of
          the Index at the end of each quarter  assuming THE value  increases or
          decreases  linearly  from the Starting  Index Value to the  applicable
          hypothetical Ending Index Value;

     o    no transaction fees or expenses;

     o    a term for the MITTS  Securities  from March 14, 1997 to September 16,
          2002; and

     o    a final Index value equal to the Ending  Index  Value.  The  aggregate
          dividend  yield of the  stocks  INCLUDED  IN the Index as of March 10,
          1997 was approximately 1.80%.
    

(3)  This is the Starting Index Value.

   
         The above  figures are for purposes of  illustration  only.  The actual
Supplemental Redemption Amount received by investors and the RESULTING total and
pretax annualized rate of return will depend entirely on the actual Ending Index
Value determined by the CALCULATION AGENT as provided IN THIS PROSPECTUS.
    

ADJUSTMENTS TO THE INDEX; MARKET DISRUPTION EVENTS

   
         If at any time the method of calculating  the Index,  or ITS value , is
changed in any material respect, or if the Index is in any other way modified so
that THE  Index  does not,  in the  opinion  of the  CALCULATION  AGENT,  fairly
represent the value of the Index had ANY changes or modifications not been made,
then,  from and after THAT time, the  CALCULATION  AGENT shall,  at the close of
business in New York, New York, on each date that the closing value with respect
to the Ending Index Value is to be calculated,  make ANY  adjustments as, in the
good faith  judgment of the  CALCULATION  AGENT,  may be  necessary  in order to
arrive at a calculation  of a value of a stock index  comparable to the Index as
if THE changes or  modifications  had not been made,  and  calculate THE closing
value with reference to the Index,  as adjusted.  Accordingly,  if the method of
calculating  the Index is  modified so that the value of THE Index is a fraction
or a  multiple  of what it  would  have  been if it had not been  modified,  FOR
EXAMPLE,  due to a split in the Index,  then the CALCULATION  AGENT shall adjust
THE  Index  in  order to  arrive  at a value of the  Index as if it had not been
modified, FOR EXAMPLE, as if A split had not occurred.

         "MARKET  DISRUPTION  EVENT" means either of the  following  events,  as
determined by the CALCULATION AGENT:

         (A) the  suspension or material  limitation  FOR MORE THAN TWO HOURS OF
TRADING IN 100 OR MORE OF THE SECURITIES INCLUDED IN THE S&P 500 INDEX, OR

         (B) THE SUSPENSION OR MATERIAL LIMITATION,  in each case, for more than
two  hours of  trading,  whether  by  reason  of  movements  in price  otherwise
exceeding levels permitted by the relevant exchange or otherwise, in

     (1) futures  contracts related to the Index which are traded on the Chicago
         Mercantile Exchange or

     (2) option  contracts  related to the Index which are traded on the Chicago
         Board Options Exchange, Inc.

         A  limitation  on the hours in a trading  day and/or  number of days of
trading  will not  constitute  a Market  Disruption  Event if it results from an
announced change in the regular business hours of the relevant exchange.

         FOR THE PURPOSES OF CLAUSE (A) ABOVE, ANY LIMITATIONS ON TRADING DURING
SIGNIFICANT  MARKET  FLUCTUATIONS UNDER NEW YORK STOCK EXCHANGE RULE 80A, OR ANY
APPLICABLE  RULE OR REGULATION  ENACTED OR  PROMULGATED BY THE NYSE OR ANY OTHER
SELF  REGULATORY  ORGANIZATION  OR THE SEC OF SIMILAR SCOPE AS DETERMINED BY THE
CALCULATION AGENT, WILL BE CONSIDERED "MATERIAL".
    

DISCONTINUANCE OF THE INDEX

   
         If S&P discontinues  publication of the Index and S&P or another entity
publishes a successor or substitute index that the CALCULATION AGENT determines,
in its  sole  discretion,  to be  comparable  to THE  INDEX,  ANY  SUCCESSOR  OR
SUBSTITUTE  INDEX  IS  REFERRED  TO  AS A  "SUCCESSOR  INDEX",  THEN,  UPON  THE
CALCULATION AGENT'S NOTIFICATION OF THE determination to the TRUSTEE AND ML&CO.,
THE  CALCULATION  AGENT will substitute the Successor Index as calculated by S&P
or ANY other entity for the Index . Upon any selection by the CALCULATION  AGENT
of a Successor  Index,  ML&CO.  shall cause notice to be given to HOLDERS of the
MITTS Securities.

         If S&P  discontinues  publication of the Index and a Successor Index is
not selected by the  CALCULATION  AGENT or is no longer  published on any of the
Calculation  Days, the value to be substituted for the Index for any Calculation
Day used to calculate the Supplemental  Redemption  Amount at maturity will be a
value computed by the CALCULATION  AGENT for each  Calculation Day in accordance
with the procedures last used to calculate the Index BEFORE THE  discontinuance.
If a Successor Index is selected or the CALCULATION  AGENT calculates a value as
a substitute  for the Index as described  below,  THE  Successor  Index or value
shall be substituted  for the Index for all purposes,  including for purposes of
determining whether a Market Disruption Event exists.

         If S&P  discontinues  publication of the Index BEFORE the period during
which the Supplemental Redemption Amount is to be determined and the CALCULATION
AGENT determines that no Successor Index is available at THAT time, then on each
Business Day until the earlier to occur of:
    

O    the determination of the Ending Index Value and

   
O    a  determination  by the  CALCULATION  AGENT  that  a  Successor  Index  is
     available,

the CALCULATION  AGENT shall determine the value that would be used in computing
the Supplemental Redemption Amount as described in the preceding paragraph as if
THAT day were a Calculation Day. The CALCULATION AGENT will cause notice of each
value to be  published  not less often  than once each month in The Wall  Street
Journal,  or  another  newspaper  of  general   circulation,   and  arrange  for
information with respect to THE values to be made available by telephone.

         DESPITE  these   alternative   arrangements,   discontinuance   of  the
publication of the Index may adversely affect trading in the MITTS Securities.
    

EVENTS OF DEFAULT AND ACCELERATION

   
         In case an Event of Default  with respect to any MITTS  Securities  HAS
occurred and IS continuing,  the amount payable to a beneficial owner of a MITTS
Security upon any acceleration  permitted by the MITTS Securities,  with respect
to each $10 principal  amount PER UNIT, will be equal to the initial issue price
($10) PER UNIT AND an  additional  amount of contingent  interest  calculated as
though the date of early  repayment  were the STATED  maturity date of the MITTS
Securities.  See "- PAYMENT at  Maturity"  in this  PROSPECTUS.  If a bankruptcy
proceeding is commenced in respect of ML&CO.,  the claim of the beneficial owner
of a MITTS Security may be limited,  under Section  502(B)(2) OF TITLE 11 of the
United States Code, to the principal  amount PER UNIT of the MITTS Security plus
an additional amount of contingent interest calculated as though the date of the
commencement of the proceeding were the maturity date of the MITTS Securities.

         In case of default in payment of the MITTS  Securities,  whether at THE
stated maturity or upon acceleration, from and after the maturity date the MITTS
Securities  shall bear interest,  payable upon demand of the  beneficial  owners
thereof,  at the rate of 6.75% per  annum,  to the  extent  that  payment of ANY
interest shall be legally  enforceable,  on the unpaid amount due and payable on
THAT  date in  accordance  with the terms of the  MITTS  Securities  to the date
payment of ANY amount has been made or duly provided for.

GLOBAL SECURITIES

         DESCRIPTION OF THE GLOBAL SECURITIES

         BENEFICIAL  OWNERS OF THE MITTS  SECURITIES  MAY NOT  RECEIVE  PHYSICAL
DELIVERY  OF THE MITTS  SECURITIES  NOR MAY THEY BE  ENTITLED  TO HAVE THE MITTS
SECURITIES  REGISTERED  IN THEIR  NAMES.  THE  MITTS  SECURITIES  CURRENTLY  ARE
represented  by one or more fully  registered  global  securities.  EACH  GLOBAL
SECURITY WAS deposited  with, or on behalf of, The  Depository  Trust Company OR
DTC,  DTC,  TOGETHER  WITH  ANY  SUCCESSOR  THERETO,  BEING A  "DEPOSITARY",  AS
DEPOSITARY,  registered in the name of CEDE & CO., DTC'S  PARTNERSHIP  nominee .
Unless and until it is  exchanged  in whole or in part for MITTS  Securities  in
definitive form, no GLOBAL SECURITY may be transferred  except as a whole by the
DEPOSITARY to a nominee of THE  DEPOSITARY or by a nominee of THE  DEPOSITARY TO
THE DEPOSITARY or another  nominee of THE DEPOSITARY OR BY THE DEPOSITARY OR ANY
nominee to a successor of THE DEPOSITARY OR A NOMINEE OF THAT SUCCESSOR.

         So long as DTC,  or its  nominee,  is A  registered  owner  of a GLOBAL
SECURITY,  DTC or its nominee,  as the case may be, will be considered  the sole
owner or HOLDER of the MITTS Securities represented by A GLOBAL SECURITY for all
purposes  under the 1983  Indenture.  Except as provided  below,  THE BENEFICIAL
OWNERS OF THE MITTS  SECURITIES  REPRESENTED  BY A GLOBAL  SECURITY  will not be
entitled  to have  the  MITTS  Securities  represented  by THE  GLOBAL  SECURITY
registered in their names,  will not receive or be entitled to receive  physical
delivery of the MITTS  Securities in definitive  form and will not be considered
the  owners or HOLDERS  under the 1983  Indenture,  including  for  purposes  of
receiving  any  reports  delivered  by  ML&CO.  or the  TRUSTEE  UNDER  the 1983
Indenture.  Accordingly,  each PERSON  owning a beneficial  interest in a GLOBAL
SECURITY  must  rely on the  procedures  of DTC  and,  if THAT  PERSON  is not a
PARTICIPANT  OF DTC on the  procedures  of the  PARTICIPANT  through  which THAT
PERSON  owns its  interest,  to exercise  any rights of a HOLDER  under the 1983
Indenture.  ML&CO.  understands that under existing industry  practices,  in the
event  that  ML&CO.  requests  any  action  of  HOLDERS  or that an  owner  of a
beneficial  interest  in A GLOBAL  SECURITY  desires  to give or take any action
which a HOLDER is entitled to give or take under the 1983  Indenture,  DTC would
authorize the PARTICIPANTS  holding the relevant beneficial interests to give or
take ANY action, and THE PARTICIPANTS  would authorize  BENEFICIAL OWNERS owning
through THOSE  PARTICIPANTS  to give or take action or would  otherwise act upon
the  instructions  of  BENEFICIAL  OWNERS.   Conveyance  of  notices  and  other
communications by DTC to PARTICIPANTS,  BY PARTICIPANTS TO INDIRECT PARTICIPANTS
AND BY  PARTICIPANTS  AND INDIRECT  PARTICIPANTS  TO  BENEFICIAL  OWNERS will be
governed by  arrangements  among them,  subject to any  statutory or  regulatory
requirements as may be in effect from time to time.

         DTC PROCEDURES

         THE FOLLOWING IS BASED ON INFORMATION FURNISHED BY DTC:

         DTC IS THE SECURITIES  DEPOSITARY FOR THE MITTS  SECURITIES.  THE MITTS
SECURITIES WERE ISSUED AS FULLY REGISTERED  SECURITIES REGISTERED IN THE NAME OF
CEDE & CO.,  DTC'S  PARTNERSHIP  NOMINEE.  ONE OR MORE FULLY  REGISTERED  GLOBAL
SECURITIES  WERE  ISSUED FOR THE MITTS  SECURITIES  IN THE  AGGREGATE  PRINCIPAL
AMOUNT OF THE MITTS SECURITIES, AND WERE DEPOSITED WITH DTC.

         DTC IS A  LIMITED-PURPOSE  TRUST COMPANY  ORGANIZED  UNDER THE NEW YORK
BANKING LAW, A "BANKING ORGANIZATION" WITHIN THE MEANING OF THE NEW YORK BANKING
LAW, A MEMBER OF THE FEDERAL RESERVE SYSTEM, A "CLEARING CORPORATION" WITHIN THE
MEANING  OF THE NEW  YORK  UNIFORM  COMMERCIAL  CODE,  AND A  "CLEARING  AGENCY"
REGISTERED UNDER TO THE PROVISIONS OF SECTION 17A OF THE SECURITIES AND EXCHANGE
ACT OF 1934, AS AMENDED. DTC HOLDS SECURITIES THAT ITS PARTICIPANTS DEPOSIT WITH
DTC. DTC ALSO  FACILITATES  THE  SETTLEMENT  AMONG  PARTICIPANTS  OF  SECURITIES
TRANSACTIONS,  SUCH AS TRANSFERS AND PLEDGES,  IN DEPOSITED  SECURITIES  THROUGH
ELECTRONIC COMPUTERIZED  BOOK-ENTRY CHANGES IN PARTICIPANTS'  ACCOUNTS,  THEREBY
ELIMINATING THE NEED FOR PHYSICAL  MOVEMENT OF SECURITIES  CERTIFICATES.  DIRECT
PARTICIPANTS  OF DTC  INCLUDE  SECURITIES  BROKERS  AND  DEALERS,  BANKS,  TRUST
COMPANIES,  CLEARING  CORPORATIONS  AND OTHER  ORGANIZATIONS.  DTC IS OWNED BY A
NUMBER OF ITS DIRECT  PARTICIPANTS  AND BY THE NYSE,  THE AMEX AND THE  NATIONAL
ASSOCIATION  OF  SECURITIES  DEALERS,  INC.  ACCESS TO THE DTC'S  SYSTEM IS ALSO
AVAILABLE  TO OTHERS SUCH AS  SECURITIES  BROKERS AND  DEALERS,  BANKS AND TRUST
COMPANIES THAT CLEAR THROUGH OR MAINTAIN A CUSTODIAL  RELATIONSHIP WITH A DIRECT
PARTICIPANT,  EITHER DIRECTLY OR INDIRECTLY. THE RULES APPLICABLE TO DTC AND ITS
PARTICIPANTS ARE ON FILE WITH THE SEC.

         PURCHASES  OF MITTS  SECURITIES  UNDER DTC'S  SYSTEM MUST BE MADE BY OR
THROUGH  DIRECT  PARTICIPANTS,  WHICH  WILL  RECEIVE  A  CREDIT  FOR  THE  MITTS
SECURITIES ON DTC'S RECORDS.  THE OWNERSHIP INTEREST OF EACH BENEFICIAL OWNER IS
IN TURN TO BE  RECORDED  ON THE  RECORDS  OF DIRECT AND  INDIRECT  PARTICIPANTS.
BENEFICIAL  OWNERS  WILL  NOT  RECEIVE  WRITTEN  CONFIRMATION  FROM DTC OF THEIR
PURCHASE,  BUT BENEFICIAL  OWNERS ARE EXPECTED TO RECEIVE WRITTEN  CONFIRMATIONS
PROVIDING  DETAILS OF THE TRANSACTION,  AS WELL AS PERIODIC  STATEMENTS OF THEIR
HOLDINGS,  FROM THE DIRECT PARTICIPANTS OR INDIRECT  PARTICIPANTS  THROUGH WHICH
THE  BENEFICIAL  OWNER  ENTERED  INTO THE  TRANSACTION.  TRANSFERS  OF OWNERSHIP
INTERESTS IN THE MITTS  SECURITIES ARE TO BE ACCOMPLISHED BY ENTRIES MADE ON THE
BOOKS OF PARTICIPANTS ACTING ON BEHALF OF BENEFICIAL OWNERS.

         TO FACILITATE SUBSEQUENT TRANSFERS, ALL MITTS SECURITIES DEPOSITED WITH
DTC ARE  REGISTERED  IN THE NAME OF DTC'S  PARTNERSHIP  NOMINEE,  CEDE & CO. THE
DEPOSIT OF MITTS SECURITIES WITH DTC AND THEIR  REGISTRATION IN THE NAME OF CEDE
& CO.  EFFECT NO CHANGE IN  BENEFICIAL  OWNERSHIP.  DTC HAS NO  KNOWLEDGE OF THE
ACTUAL BENEFICIAL OWNERS OF THE MITTS SECURITIES; DTC'S RECORDS REFLECT ONLY THE
IDENTITY OF THE DIRECT  PARTICIPANTS TO WHOSE ACCOUNTS THE MITTS  SECURITIES ARE
CREDITED,  WHICH MAY OR MAY NOT BE THE BENEFICIAL  OWNERS. THE PARTICIPANTS WILL
REMAIN  RESPONSIBLE  FOR  KEEPING  ACCOUNT OF THEIR  HOLDINGS ON BEHALF OF THEIR
CUSTOMERS.

         CONVEYANCE  OF  NOTICES  AND  OTHER  COMMUNICATIONS  BY DTC  TO  DIRECT
PARTICIPANTS, BY DIRECT PARTICIPANTS TO INDIRECT PARTICIPANTS, AND BY DIRECT AND
INDIRECT  PARTICIPANTS  TO  BENEFICIAL  OWNERS WILL BE GOVERNED BY  ARRANGEMENTS
AMONG THEM,  SUBJECT TO ANY  STATUTORY OR REGULATORY  REQUIREMENTS  AS MAY BE IN
EFFECT FROM TIME TO TIME.

         NEITHER  DTC NOR CEDE & CO.  WILL  CONSENT OR VOTE WITH  RESPECT TO THE
MITTS  SECURITIES.  UNDER ITS USUAL  PROCEDURES,  DTC MAILS AN OMNIBUS  PROXY TO
ML&CO.  AS SOON AS POSSIBLE AFTER THE APPLICABLE  RECORD DATE. THE OMNIBUS PROXY
ASSIGNS CEDE & CO.'S  CONSENTING OR VOTING  RIGHTS TO THOSE DIRECT  PARTICIPANTS
IDENTIFIED  IN A LISTING  ATTACHED TO THE OMNIBUS  PROXY TO WHOSE  ACCOUNTS  THE
MITTS  SECURITIES  ARE  CREDITED  ON THE  RECORD  DATE  IDENTIFIED  IN A LISTING
ATTACHED TO THE OMNIBUS PROXY.

         PRINCIPAL,  PREMIUM,  IF ANY, AND/OR INTEREST,  IF ANY, PAYMENTS ON THE
MITTS  SECURITIES  WILL BE MADE IN  IMMEDIATELY  AVAILABLE  FUNDS TO DTC.  DTC'S
PRACTICE IS TO CREDIT DIRECT  PARTICIPANTS'  ACCOUNTS ON THE APPLICABLE  PAYMENT
DATE IN ACCORDANCE  WITH THEIR  RESPECTIVE  HOLDINGS  SHOWN ON THE  DEPOSITARY'S
RECORDS  UNLESS DTC HAS REASON TO BELIEVE  THAT IT WILL NOT  RECEIVE  PAYMENT ON
THAT DATE.  PAYMENTS BY  PARTICIPANTS  TO BENEFICIAL  OWNERS WILL BE GOVERNED BY
STANDING  INSTRUCTIONS AND CUSTOMARY  PRACTICES,  AS IS THE CASE WITH SECURITIES
HELD FOR THE  ACCOUNTS  OF  CUSTOMERS  IN BEARER FORM OR  REGISTERED  IN "STREET
NAME",  AND WILL BE THE  RESPONSIBILITY  OF THE  PARTICIPANT AND NOT OF DTC, THE
TRUSTEE OR ML&CO., SUBJECT TO ANY STATUTORY OR REGULATORY REQUIREMENTS AS MAY BE
IN EFFECT  FROM TIME TO TIME.  PAYMENT OF  PRINCIPAL,  PREMIUM,  IF ANY,  AND/OR
INTEREST,  IF  ANY,  TO DTC IS THE  RESPONSIBILITY  OF  ML&CO.  OR THE  TRUSTEE,
DISBURSEMENT OF PAYMENTS TO DIRECT  PARTICIPANTS IS THE  RESPONSIBILITY  OF DTC,
AND DISBURSEMENT OF PAYMENTS TO THE BENEFICIAL  OWNERS IS THE  RESPONSIBILITY OF
DIRECT AND INDIRECT PARTICIPANTS.

     EXCHANGE FOR CERTIFICATED SECURITIES

     IF:

o    THE DEPOSITARY IS AT ANY TIME UNWILLING OR UNABLE TO CONTINUE AS DEPOSITARY
     AND A SUCCESSOR DEPOSITARY IS NOT APPOINTED BY ML&CO. WITHIN 60 DAYS,

o    ML&CO.  EXECUTES AND DELIVERS TO THE TRUSTEE A COMPANY  ORDER TO THE EFFECT
     THAT THE GLOBAL SECURITIES SHALL BE EXCHANGEABLE, OR

o    AN EVENT OF DEFAULT UNDER THE 1983 INDENTURE HAS OCCURRED AND IS CONTINUING
     WITH RESPECT TO THE MITTS SECURITIES,

THE GLOBAL  SECURITIES WILL BE EXCHANGEABLE  FOR MITTS  SECURITIES IN DEFINITIVE
FORM OF LIKE TENOR AND OF AN EQUAL AGGREGATE  PRINCIPAL AMOUNT, IN DENOMINATIONS
OF $10 AND INTEGRAL  MULTIPLES OF $10. THE DEFINITIVE  MITTS  SECURITIES WILL BE
REGISTERED IN THE NAME OR NAMES AS THE DEPOSITARY SHALL INSTRUCT THE TRUSTEE. IT
IS  EXPECTED  THAT  INSTRUCTIONS  MAY BE BASED UPON  DIRECTIONS  RECEIVED BY THE
DEPOSITARY FROM PARTICIPANTS  WITH RESPECT TO OWNERSHIP OF BENEFICIAL  INTERESTS
IN THE GLOBAL SECURITIES.

         IN  ADDITION,  ML&CO.  MAY DECIDE TO  DISCONTINUE  USE OF THE SYSTEM OF
BOOK-ENTRY TRANSFERS THROUGH THE DEPOSITARY.  IN THAT EVENT, MITTS SECURITIES IN
DEFINITIVE FORM WILL BE PRINTED AND DELIVERED.

         THE  INFORMATION  IN THIS SECTION  CONCERNING  DTC AND DTC'S SYSTEM HAS
BEEN OBTAINED FROM SOURCES THAT ML&CO. BELIEVES TO BE RELIABLE, BUT ML&CO. TAKES
NO RESPONSIBILITY FOR ITS ACCURACY.
    

SAME-DAY SETTLEMENT AND PAYMENT

   
         ML&CO.  WILL  MAKE  ALL  payments  of  principal  and the  Supplemental
Redemption  Amount, if any, in immediately  available funds so long as the MITTS
Securities are maintained in book-entry form.
    

                                    THE INDEX

   
     All DISCLOSURES contained in this PROSPECTUS regarding the Index, including
its make-up,  method of calculation and changes in its  components,  ARE derived
from publicly available information prepared by S&P AS OF March 22, 1999. ML&CO.
AND MLPF&S DO NOT ASSUME any  responsibility for the accuracy or completeness of
THE information.

     The Index is published by S&P, and is intended to provide an  indication of
the pattern of common stock price movement.  The calculation of the value of the
Index,  discussed below in further detail, is based on the relative value of the
aggregate  Market Value of the common stocks of 500 companies as of a particular
time compared to the aggregate  average Market Value of the common stocks of 500
similar  companies  during the base period of the years 1941 through 1943. As of
March 22, 1999 the 500 companies included in the Index represented approximately
78% of the aggregate Market Value of common stocks traded on THE NYSE;  however,
these 500 companies are not the 500 largest companies listed on THE NYSE and not
all of these 500 companies are listed on THE exchange. As of March 22, 1999, the
aggregate  MARKET VALUE of the 500 companies  included in the Index  represented
approximately  79% of the  aggregate  MARKET  VALUE of United  States  domestic,
public companies.  S&P chooses companies for inclusion in the Index with the aim
of achieving a distribution by broad industry  groupings that  approximates  the
distribution  of these  groupings  in the common stock  population  of THE NYSE,
which S&P uses as an  assumed  model for the  composition  of the total  market.
Relevant criteria employed by S&P include:
    

o    the viability of the particular company,

o    the extent to which that company  represents the industry group to which it
     is assigned,

   
o    the  extent to which the market  price of that  COMPANY'S  common  stock is
     generally  responsive to changes in the affairs of the respective industry,
     and
    

o    the Market Value and trading activity of the common stock of that company.

   
         FOUR main groups of companies  COMPRISE  THE INDEX,  with the number of
companies currently included in each group indicated in parentheses: Industrials
(380), Utilities (39), Transportation (10) and Financial (71). S&P may from time
to time, in its sole discretion, add companies to, or delete companies from, the
Index to achieve the objectives stated above.

         THE INDEX  DOES NOT  REFLECT  THE  PAYMENT OF  DIVIDENDS  ON THE STOCKS
UNDERLYING  IT. THE RETURN  BASED ON THE MITTS  SECURITIES  WILL NOT BE THE SAME
RETURN YOU WOULD RECEIVE IF YOU WERE TO PURCHASE THE UNDERLYING  STOCKS AND HOLD
THEM FOR A PERIOD EQUAL TO THE MATURITY OF THE MITTS SECURITIES.
    

COMPUTATION OF THE INDEX

         S&P currently computes the Index as of a particular time as follows:

   
          (A) the  product of the market  price per share and the number of then
     outstanding  shares of each  component  stock is determined AT A PARTICULAR
     TIME (the "Market Value" of THE stock);

          (B) the  Market  Value  of all  component  STOCK  AS OF THAT  TIME are
     aggregated;

          (C) the mean average of the Market  Values as of each week in the base
     period of the years 1941  through  1943 of the common stock of each company
     in a group of 500 substantially similar companies is determined;

          (D) the mean average Market Values of all THESE common stocks over THE
     base period are aggregated  (THE aggregate  amount being referred to as the
     "Base Value");

          (E) the CURRENT  aggregate  Market  Value of all  component  stocks is
     divided by the Base Value; and

          (F) the resulting  quotient,  expressed in decimals,  is multiplied by
     ten.

         While S&P  currently  employs the above  methodology  to calculate  the
Index,  no  assurance  can be given  that S&P will not  modify  or  change  THIS
methodology in a manner that may affect the Supplemental  Redemption  Amount, if
any,  payable  to  beneficial  owners  of  MITTS  Securities  upon  maturity  or
otherwise.

         S&P adjusts the  foregoing  formula to negate the EFFECTS of changes in
the Market Value of component  STOCKS that are determined by S&P to be arbitrary
or not due to true market fluctuations. CHANGES may result from causes SUCH as
    

o    the issuance of stock dividends,

   
o    the granting to  shareholders  of rights to purchase  additional  shares of
     stock,

o    the purchase OF SHARES by employees pursuant to employee benefit plans,

o    consolidations and acquisitions,

o    the granting to  shareholders  of rights to purchase  other  securities  of
     ML&CO.,
    

o    the substitution by S&P of particular component stocks in the Index, and

o    other reasons.

   
In THESE  cases,  S&P  first  recalculates  the  aggregate  Market  Value of all
component stocks,  after taking account of the new market price per share of the
particular  component  stock or the new number of outstanding  shares thereof or
both, and then  determines  the New Base Value in accordance  with the following
formula:
    

                                      New Market Value
                                      ----------------
   
Old Base Value X                      OLD MARKET VALUE        = New Base Value

         The  result is that the Base Value is  adjusted  in  proportion  to any
change in the aggregate  Market Value of all component stocks resulting from the
causes referred to above to the extent  necessary to negate the effects of THESE
causes upon the Index.

HISTORICAL DATA ON THE INDEX

         THE  FOLLOWING  TABLE  SETS  FORTH THE VALUE OF THE INDEX AT THE END OF
EACH  MONTH,  IN THE PERIOD FROM  JANUARY  1990  THROUGH  FEBRUARY  1999.  THESE
HISTORICAL  DATA ON THE  INDEX  ARE NOT  NECESSARILY  INDICATIVE  OF THE  FUTURE
PERFORMANCE  OF THE INDEX OR WHAT THE VALUE OF THE MITTS  SECURITIES MAY BE. ANY
HISTORICAL  UPWARD OR DOWNWARD TREND IN THE VALUE OF THE INDEX DURING ANY PERIOD
SET FORTH BELOW IS NOT ANY  INDICATION  THAT THE INDEX IS MORE OR LESS LIKELY TO
INCREASE OR DECREASE AT ANY TIME DURING THE TERM OF THE MITTS SECURITIES.

<TABLE>
<CAPTION>
                  1990      1991      1992      1993      1994     1995      1996      1997      1998      1999
<S>               <C>       <C>       <C>       <C>       <C>       <C>      <C>       <C>       <C>     <C>     
JANUARY.......    329.08    343.93    408.78    438.78    481.61    470.42   636.02    786.16    980.28  1,279.64
FEBRUARY......    331.89    367.07    412.70    443.38    467.14    487.39   640.43    790.82  1,049.34  1,238.33
MARCH.........    339.94    375.22    403.69    451.67    445.77    500.71   645.50    757.12  1,101.75
APRIL.........    330.80    375.34    414.95    440.19    450.91    514.71   654.17    801.34  1,111.75
MAY...........    361.23    389.83    415.35    450.19    456.51    533.40   669.12    848.28  1,090.82
JUNE..........    358.02    371.16    408.14    450.53    444.27    544.75   670.63    885.14  1,133.84
JULY..........    356.15    387.81    424.22    448.13    458.26    562.06   639.95    954.29  1,120.67
AUGUST........    322.56    395.43    414.03    463.56    475.50    561.88   651.99    899.47    957.28
SEPTEMBER.....    306.05    387.86    417.80    458.93    462.71    584.41   687.31    947.28  1,017.01
OCTOBER.......    304.00    392.45    418.68    467.83    472.35    581.50   705.27    914.62  1,098.67
NOVEMBER......    322.22    375.22    431.35    461.79    453.69    605.37   757.02    955.40  1,163.63
DECEMBER......    330.22    417.09    435.71    466.45    459.27    615.93   740.74    970.43  1,229.23
</TABLE>

LICENSE AGREEMENT

         STANDARD & POOR'S  ("S&P") DOES NOT GUARANTEE  THE ACCURACY  AND/OR THE
COMPLETENESS  OF THE  INDEX OR ANY DATA  INCLUDED  IN THE  INDEX.  S&P  MAKES NO
WARRANTY,  EXPRESS OR IMPLIED,  AS TO RESULTS TO BE OBTAINED BY ML&CO.,  MLPF&S,
HOLDERS OF THE MITTS  SECURITIES,  OR ANY OTHER PERSON OR ENTITY FROM THE USE OF
THE S&P INDEX OR ANY DATA  INCLUDED IN THE INDEX IN  CONNECTION  WITH THE RIGHTS
LICENSED  UNDER THE LICENSE  AGREEMENT  DESCRIBED IN THIS  PROSPECTUS OR FOR ANY
OTHER USE.  S&P MAKES NO EXPRESS OR  IMPLIED  WARRANTIES,  AND HEREBY  EXPRESSLY
DISCLAIMS ALL WARRANTIES OF  MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
WITH  RESPECT  TO THE S&P  INDEX  OR ANY DATA  INCLUDED  IN THE  INDEX.  WITHOUT
LIMITING ANY OF THE ABOVE INFORMATION,  IN NO EVENT SHALL S&P HAVE ANY LIABILITY
FOR ANY SPECIAL,  PUNITIVE,  INDIRECT OR  CONSEQUENTIAL  DAMAGE,  INCLUDING LOST
PROFITS, EVEN IF NOTIFIED OF THE POSSIBILITY OF THESE DAMAGES.

         S&P and Merrill  Lynch  Capital  Services,  Inc.  have  entered  into a
non-exclusive  license  agreement  providing  for the  license to Merrill  Lynch
Capital Services, Inc., in exchange for a fee, of the right to use indices owned
and published by S&P in  connection  with SOME  securities,  including the MITTS
Securities,  and ML&CO.  is an authorized  sublicensee  OF MERRILL LYNCH CAPITAL
SERVICES, INC.

         The license  agreement  between S&P and Merrill Lynch Capital Services,
Inc. provides that the following language must be stated in this PROSPECTUS:

         "The MITTS Securities are not sponsored,  endorsed, sold or promoted by
S&P. S&P makes no representation or warranty, express or implied, to the HOLDERS
of the MITTS  Securities or any member of the public  regarding the advisability
of investing in securities generally or in the MITTS Securities  particularly or
the ability of the Index to track general stock market  performance.  S&P's only
relationship  to Merrill Lynch  Capital  Services,  Inc. and ML&CO.  (other than
transactions  entered into in the ordinary  course of business) is the licensing
of  certain  servicemarks  and  trade  names  of S&P and of the  Index  which is
determined, composed and calculated by S&P without regard to ML&CO. or the MITTS
Securities.  S&P has no obligation to take the needs of ML&CO. or the HOLDERS of
the MITTS Securities into consideration in determining, composing or calculating
the  Index.  S&P  is  not  responsible  for  and  has  not  participated  in the
determination of the timing of the sale of the MITTS Securities, prices at which
the MITTS  Securities  are to  initially  be sold,  or  quantities  of the MITTS
Securities to be issued or in the  determination  or calculation of the equation
by  which  the  MITTS  Securities  are to be  converted  into  cash.  S&P has no
obligation  or liability in  connection  with the  administration,  marketing or
trading of the MITTS Securities."
    

                                   OTHER TERMS

   
         ML&CO.  ISSUED  THE  MITTS  Securities  as  a  series  of  SENIOR  DEBT
SECURITIES  under the 1983 Indenture,  dated as of April 1, 1983, as amended and
restated, between ML&CO. and The Chase Manhattan Bank, AS TRUSTEE. A COPY OF THE
1983 Indenture is filed as an exhibit to the registration  STATEMENT relating to
the MITTS Securities OF WHICH THIS PROSPECTUS IS A PART. The following summaries
of THE  MATERIAL  provisions  of the 1983  Indenture  ARE not  complete  and are
subject to, and qualified in their  entirety by reference to, all  provisions of
the 1983 Indenture, including the DEFINITIONS OF TERMS IN THE 1983 INDENTURE.

         ML&CO.  MAY ISSUE  SERIES OF SENIOR DEBT  SECURITIES  FROM TIME TO TIME
UNDER THE 1983 INDENTURE,  without limitation as to aggregate  principal amount,
in one or more  series  and  upon  terms  as  ML&CO.  may  establish  UNDER  the
provisions OF THE 1983 INDENTURE.

         THE  1983  Indenture  and the  MITTS  Securities  are  governed  by and
construed in accordance with the laws of the State of New York.

         ML&CO. MAY ISSUE SENIOR DEBT SECURITIES with terms different from those
of SENIOR DEBT SECURITIES  previously  issued,  and ISSUE ADDITIONAL SENIOR DEBT
SECURITIES OF a previously issued series of SENIOR DEBT SECURITIES.

         THE SENIOR DEBT  SECURITIES  are  unsecured  and rank  EQUALLY with all
other  unsecured and  unsubordinated  indebtedness  of ML&CO.  However,  BECAUSE
ML&CO. is a holding company,  the RIGHTS OF ML&CO. AND ITS CREDITORS,  INCLUDING
THE HOLDERS OF SENIOR DEBT SECURITIES, to participate in any distribution of the
assets of any subsidiary upon its liquidation or reorganization or otherwise ARE
necessarily  subject to the prior claims of creditors of the subsidiary,  except
to the extent that A BANKRUPTCY COURT MAY RECOGNIZE claims of ML&CO. itself as a
creditor of the  subsidiary . In addition,  dividends,  loans and advances  from
certain subsidiaries,  including MLPF&S, to ML&CO. are restricted by net capital
requirements  under the Exchange  Act,  and under rules of  exchanges  and other
regulatory bodies.
    

LIMITATIONS UPON LIENS

   
         ML&CO.  may not, and may not permit any  MAJORITY-OWNED  SUBSIDIARY to,
create,  assume,  incur or permit to exist any  indebtedness  for borrowed money
secured  by a  pledge,  lien  or  other  encumbrance,  OTHER  THAN  THOSE  liens
specifically permitted by the 1983 INDENTURE, on the Voting Stock owned directly
or  indirectly  by  ML&CO.  of  any  MAJORITY-OWNED  SUBSIDIARY,  other  than  a
MAJORITY-OWNED  SUBSIDIARY  which,  at the time of the incurrence of THE secured
indebtedness,  has a net worth of less than  $3,000,000,  UNLESS THE OUTSTANDING
SENIOR  DEBT  SECURITIES  ARE  secured  equally  and  ratably  with THE  secured
indebtedness.

         "VOTING  STOCK" IS  DEFINED IN THE 1983  INDENTURE  AS THE STOCK OF THE
CLASS OR CLASSES HAVING GENERAL  VOTING POWER UNDER  ORDINARY  CIRCUMSTANCES  TO
ELECT AT LEAST A MAJORITY OF THE BOARD OF  DIRECTORS,  MANAGERS OR TRUSTEES OF A
CORPORATION  PROVIDED THAT, FOR THE PURPOSES OF THE 1983  INDENTURE,  STOCK THAT
CARRIES ONLY THE RIGHT TO VOTE  CONDITIONALLY  ON THE  OCCURRENCE OF AN EVENT IS
NOT CONSIDERED VOTING STOCK WHETHER OR NOT THE EVENT HAS HAPPENED.
    

LIMITATION ON  DISPOSITION OF VOTING STOCK OF, AND MERGER AND SALE OF ASSETS BY,
MLPF&S

   
         ML&CO. may not sell,  transfer or otherwise dispose of any Voting Stock
of MLPF&S or permit  MLPF&S to issue,  sell or  otherwise  dispose of any of its
Voting  Stock,  unless,  after  giving  effect to any such  transaction,  MLPF&S
remains a Controlled Subsidiary.

         "CONTROLLED  SUBSIDIARY"  IS  defined in the 1983  Indenture  to mean a
corporation more than 80% of the outstanding shares of Voting Stock of which are
owned directly or indirectly by ML&CO.

     In addition,  ML&CO. may not permit MLPF&S to:

o    merge  or  consolidate,  unless  the  surviving  company  is  a  Controlled
     Subsidiary, or
    

o    convey or transfer its properties and assets  substantially as an entirety,
     except to one or more Controlled Subsidiaries.

MERGER AND CONSOLIDATION

   
     ML&CO.  may  consolidate  or merge with or into any other  corporation  and
ML&CO. may sell,  lease or convey all or substantially  all of its assets to any
corporation, provided that:

o    THE RESULTING CORPORATION, IF OTHER THAN ML&CO., IS a corporation organized
     and  existing  under the laws of the  United  States of America or ANY U.S.
     STATE AND ASSUMES ALL OF ML&CO.'S OBLIGATIONS TO:

     o PAY ANY AMOUNTS DUE AND PAYABLE OR  DELIVERABLE  WITH  RESPECT TO ALL THE
       SENIOR DEBT SECURITIES; AND

     o PERFORM AND OBSERVE ALL OF ML&CO.'S OBLIGATIONS UNDER THE 1983 INDENTURE,
       AND

o    ML&CO.  OR  THE  successor  corporation,  as  the  case  may  be,  IS  not,
     immediately  AFTER ANY  CONSOLIDATION OR MERGER,  in default under the 1983
     Indenture.
    

MODIFICATION AND WAIVER

   
         ML&CO. AND THE TRUSTEE MAY MODIFY AND AMEND THE 1983 INDENTURE with the
consent of HOLDERS OF AT LEAST 66 2/3% in principal  amount of EACH  OUTSTANDING
SERIES OF SENIOR DEBT SECURITIES AFFECTED.  HOWEVER, without the consent of EACH
HOLDER OF ANY  OUTSTANDING  SENIOR  DEBT  SECURITY  AFFECTED,  NO  AMENDMENT  OR
MODIFICATION TO THE 1983 INDENTURE MAY:

o    CHANGE THE STATED  MATURITY DATE of the principal of, or any installment of
     interest or Additional  Amounts payable on, any SENIOR DEBT SECURITY or any
     premium payable on redemption , or change the REDEMPTION PRICE;

o    reduce the  principal  amount of, or the  interest  or  Additional  Amounts
     payable  on, any SENIOR  DEBT  SECURITY  or reduce the amount of  principal
     which could be declared due and payable BEFORE THE STATED MATURITY DATE;

o    change THE place or currency of any payment of  principal  or any  premium,
     interest or Additional Amounts payable on any SENIOR DEBT SECURITY;

o    impair the right to institute suit for the enforcement of any payment on or
     with respect to any SENIOR DEBT SECURITY;

o    reduce the percentage in principal  amount of the  OUTSTANDING  SENIOR DEBT
     SECURITIES  of any  series,  the  consent of whose  HOLDERS is  required to
     modify or amend the 1983 Indenture; or

o    modify the foregoing  requirements  or reduce the percentage of OUTSTANDING
     SENIOR DEBT  SECURITIES  necessary to waive any past default to less than a
     majority.

         No modification or amendment of ML&CO.'S Subordinated  Indenture or any
Subsequent  Indenture for SUBORDINATED  DEBT SECURITIES may adversely affect the
rights of any holder of ML&CO.'S SENIOR INDEBTEDNESS without the consent of EACH
HOLDER  AFFECTED.  THE  HOLDERS of at least a majority  in  principal  amount of
OUTSTANDING  SENIOR  DEBT  SECURITIES  of any series may,  with  respect to THAT
series,  waive past defaults  under the 1983  Indenture and waive  compliance by
ML&CO.  WITH  PROVISIONS  IN THE  1983  INDENTURE,  EXCEPT  AS  DESCRIBED  UNDER
"--EVENTS OF DEFAULT".

 EVENTS OF DEFAULT

     EACH OF the following will be Events of Default with respect to SENIOR DEBT
     SECURITIES of any series:

o    default in the payment of any interest or Additional  Amounts  payable WHEN
     DUE AND CONTINUING FOR 30 DAYS;

o    default in the payment of any principal or premium WHEN DUE;

o    default in the deposit of any sinking fund payment, when due;

o    default in the performance of any other  OBLIGATION OF ML&CO.  contained in
     the 1983  Indenture  for the  benefit of THAT  series or in the SENIOR DEBT
     SECURITIES OF THAT series,  CONTINUING  for 60 days after written notice as
     provided in the 1983 Indenture;

o    SPECIFIED events in bankruptcy, insolvency or reorganization OF ML&CO.; and

o    any other Event of Default  provided with respect to SENIOR DEBT SECURITIES
     OF THAT SERIES WHICH ARE NOT INCONSISTENT WITH THE 1983 INDENTURE.

         IF AN EVENT OF  DEFAULT  OCCURS  AND IS  CONTINUING  FOR ANY  SERIES OF
SENIOR DEBT SECURITIES, OTHER THAN AS A RESULT OF THE BANKRUPTCY,  INSOLVENCY OR
REORGANIZATION  OF  ML&CO.,  THE  TRUSTEE  OR THE  HOLDERS  OF AT  LEAST  25% in
principal  amount of the  OUTSTANDING  SENIOR DEBT SECURITIES of that series may
declare  ALL  AMOUNTS,  OR ANY LESSER  AMOUNT  PROVIDED  FOR IN THE SENIOR  DEBT
SECURITIES,  DUE AND  PAYABLE OR  DELIVERABLE  IMMEDIATELY.  At any time after a
declaration of acceleration has been made with respect to SENIOR DEBT SECURITIES
of any  series  but before THE  TRUSTEE  HAS  OBTAINED a judgment  or decree for
payment  of  money , THE  HOLDERS  of a  majority  in  principal  amount  of the
OUTSTANDING SENIOR DEBT SECURITIES of that series may rescind any declaration of
acceleration and its consequences,  if all payments due, other than those due as
a result of  acceleration,  have been made and all Events of  Default  have been
remedied or waived.

         THE HOLDERS of a majority in principal  amount OR AGGREGATE ISSUE PRICE
OF THE OUTSTANDING  SENIOR DEBT SECURITIES OF THAT SERIES MAY WAIVE ANY EVENT OF
DEFAULT WITH RESPECT TO THAT SERIES, EXCEPT A DEFAULT:

o    IN THE PAYMENT OF ANY AMOUNTS DUE AND PAYABLE OR DELIVERABLE UNDER THE DEBT
     SECURITIES OF THAT SERIES; OR

o    IN RESPECT OF AN OBLIGATION OR PROVISION OF THE 1983 INDENTURE which cannot
     be modified UNDER THE TERMS OF THAT  INDENTURE  without the consent of EACH
     HOLDER  OF  EACH  OUTSTANDING  SECURITY  OF  EACH  SERIES  OF  SENIOR  DEBT
     SECURITIES AFFECTED.

         THE HOLDERS of a majority in principal amount of the OUTSTANDING SENIOR
DEBT SECURITIES of a series may direct the time,  method and place of conducting
any proceeding  for any remedy  available to the TRUSTEE or exercising any trust
or power conferred on the TRUSTEE with respect to THOSE SENIOR DEBT  SECURITIES,
provided that ANY direction shall not be in conflict with any rule of law or the
1983 Indenture.  Before proceeding to exercise any right or power under the 1983
Indenture  at the  direction of THE  HOLDERS,  THE TRUSTEE  shall be entitled to
receive  from THE HOLDERS  reasonable  security or  INDEMNIFICATION  against the
costs,  expenses and liabilities which might be incurred by it in complying with
any DIRECTION.

         THE MITTS SECURITIES AND OTHER SERIES OF SENIOR DEBT SECURITIES  ISSUED
UNDER THE 1983 INDENTURE DO NOT HAVE THE BENEFIT OF ANY CROSS-DEFAULT PROVISIONS
WITH OTHER INDEBTEDNESS OF ML&CO.

         ML&CO. is required to furnish to the TRUSTEE annually a statement as to
the fulfillment by ML&CO. of all of its obligations under the 1983 INDENTURE.
    


   
                           PROJECTED PAYMENT SCHEDULE

         Solely for purposes of applying final Treasury  regulations (the "Final
Regulations")  concerning  the United  States  Federal  income tax  treatment of
contingent  payment  debt  instruments  to  the  MITTS  Securities,  ML&CO.  has
determined  that the projected  payment  schedule for the MITTS  Securities will
consist of payment on the maturity  date of the principal  amount  thereof and a
Supplemental  Redemption  Amount equal to $4.3254 per UNIT.  This  represents an
estimated  yield on the MITTS  Securities  equal to 6.64% per annum  (compounded
semiannually).

         The  projected   payment   schedule   (including   both  the  projected
Supplemental  Redemption Amount and the estimated yield on the MITTS Securities)
has been determined  solely for United States Federal income tax purposes (i.e.,
for purposes of applying the Final Regulations to the MITTS Securities),  and is
not a prediction of what the actual  Supplemental  Redemption Amount will be, or
that the actual Supplemental Redemption Amount will even exceed zero.

         The  following  table sets forth the  amount of  interest  that will be
deemed to have accrued with respect to each UNIT of the MITTS Securities  during
each  accrual  period  over  the term of the  MITTS  Securities  based  upon the
projected  payment  schedule  for  the  MITTS  Securities  (including  both  the
projected Supplemental  Redemption Amount and the estimated yield equal to 6.64%
per annum (compounded semiannually)) as determined by ML&CO. for purposes of the
application of the Final Regulations to the MITTS Securities:
    

<TABLE>
<CAPTION>
                                                       INTEREST DEEMED TO    TOTAL INTEREST DEEMED
                                                      ACCRUE DURING ACCRUAL    TO HAVE ACCRUED ON
   
                   ACCRUAL PERIOD                      PERIOD (PER  UNIT)    SECURITIES AS OF END
    
                                                                               OF ACCRUAL PERIOD
   
                                                                                  (PER  UNIT)

<S>                                                     <C>                    <C>
March 14, 1997 through  March 16, 1997...........           $0.0018                $0.0018
March 17, 1997 through  September 16, 1997.......           $0.3338                $0.3356
September 17, 1997 through  March 16, 1998.......           $0.3413                $0.6769
March 17, 1998 through  September 16, 1998.......           $0.3545                $1.0314
September 17, 1998 through  March 16, 1999.......           $0.3662                $1.3976
March 17, 1999 through  September 16, 1999.......           $0.3785                $1.7761
September 17, 1999 through  March 16, 2000.......           $0.3909                $2.1670
March 17, 2000 through  September 16, 2000.......           $0.4040                $2.5710
September 17, 2000 through  March 16, 2001.......           $0.4173                $2.9883
March 17, 2001 through  September 16, 2001.......           $0.4312                $3.4195
September 17, 2001 through  March 16, 2002.......           $0.4456                $3.8651
March 17, 2002 through  September 16, 2002.......           $0.4603                $4.3254
</TABLE>


Projected Supplemental Redemption Amount = $4.3254 per  UNIT

         Investors in the MITTS Securities may also obtain the projected payment
schedule,  as determined by ML&CO.  for purposes of the application of the Final
Regulations  to the  MITTS  Securities,  by  submitting  a written  request  for
information to Merrill Lynch & Co., Inc.,  Attn:  Darryl W. Colletti,  Office of
the Corporate Secretary, 100 Church Street, New York, New York 10080.

                       WHERE YOU CAN FIND MORE INFORMATION

         WE FILE REPORTS,  PROXY STATEMENTS AND OTHER  INFORMATION WITH THE SEC.
OUR SEC FILINGS ARE ALSO  AVAILABLE  OVER THE  INTERNET AT THE SEC'S WEB SITE AT
HTTP://WWW.SEC.GOV.  YOU MAY ALSO READ AND COPY ANY DOCUMENT WE FILE BY VISITING
THE SEC'S PUBLIC  REFERENCE  ROOMS IN WASHINGTON,  D.C., NEW YORK, NEW YORK, AND
CHICAGO, ILLINOIS. PLEASE CALL THE SEC AT 1-800-SEC-0330 FOR FURTHER INFORMATION
ABOUT THE PUBLIC REFERENCE ROOMS. YOU MAY ALSO INSPECT OUR SEC REPORTS AND OTHER
INFORMATION AT THE NEW YORK STOCK EXCHANGE, INC., 20 BROAD STREET, NEW YORK, NEW
YORK 10005.

         WE HAVE  FILED  A  REGISTRATION  STATEMENT  ON FORM  S-3  WITH  THE SEC
COVERING THE MITTS SECURITIES AND OTHER SECURITIES.  FOR FURTHER  INFORMATION ON
ML&CO. AND THE MITTS SECURITIES,  YOU SHOULD REFER TO OUR REGISTRATION STATEMENT
AND ITS EXHIBITS.  THIS PROSPECTUS  SUMMARIZES  MATERIAL PROVISIONS OF CONTRACTS
AND OTHER DOCUMENTS THAT WE REFER YOU TO. BECAUSE THE PROSPECTUS MAY NOT CONTAIN
ALL THE INFORMATION THAT YOU MAY FIND IMPORTANT, YOU SHOULD REVIEW THE FULL TEXT
OF THESE  DOCUMENTS.  WE HAVE INCLUDED  COPIES OF THESE DOCUMENTS AS EXHIBITS TO
OUR REGISTRATION STATEMENT OF WHICH THIS PROSPECTUS IS A PART.

                INCORPORATION OF INFORMATION WE FILE WITH THE SEC

         THE SEC ALLOWS US TO INCORPORATE  BY REFERENCE THE  INFORMATION WE FILE
WITH THEM, WHICH MEANS:

     o    INCORPORATED DOCUMENTS ARE CONSIDERED PART OF THE PROSPECTUS;

     o    WE CAN DISCLOSE IMPORTANT INFORMATION TO YOU BY REFERRING YOU TO THOSE
          DOCUMENTS; AND

     o    INFORMATION  THAT WE FILE WITH THE SEC WILL  AUTOMATICALLY  UPDATE AND
          SUPERSEDE THIS INCORPORATED INFORMATION.

         WE INCORPORATE BY REFERENCE THE DOCUMENTS LISTED BELOW WHICH WERE FILED
WITH THE SEC UNDER THE EXCHANGE ACT:

     o    ANNUAL REPORT ON FORM 10-K FOR THE YEAR ENDED DECEMBER 25, 1998; AND

     o    CURRENT REPORTS ON FORM 8-K DATED DECEMBER 28, 1998, JANUARY 19, 1999,
          FEBRUARY 17, 1999,  FEBRUARY 18, 1999, FEBRUARY 22, 1999, FEBRUARY 23,
          1999 AND MARCH 26, 1999.

         WE ALSO  INCORPORATE BY REFERENCE EACH OF THE FOLLOWING  DOCUMENTS THAT
WE WILL FILE WITH THE SEC AFTER THE DATE OF THIS PROSPECTUS  UNTIL THIS OFFERING
IS COMPLETED OR AFTER THE DATE OF THIS INITIAL REGISTRATION STATEMENT AND BEFORE
THE EFFECTIVENESS OF THE REGISTRATION STATEMENT:

     o    REPORTS FILED UNDER SECTIONS 13(A) AND (C) OF THE EXCHANGE ACT;

     o    DEFINITIVE  PROXY OR INFORMATION  STATEMENTS FILED UNDER SECTION 14 OF
          THE  EXCHANGE  ACT IN  CONNECTION  WITH ANY  SUBSEQUENT  STOCKHOLDERS'
          MEETING;                                                           AND

     o    ANY REPORTS FILED UNDER SECTION 15(D) OF THE EXCHANGE ACT.

         YOU  SHOULD  RELY ONLY ON  INFORMATION  CONTAINED  OR  INCORPORATED  BY
REFERENCE IN THIS  PROSPECTUS.  WE HAVE NOT, AND MLPF&S HAS NOT,  AUTHORIZED ANY
OTHER PERSON TO PROVIDE YOU WITH DIFFERENT  INFORMATION.  IF ANYONE PROVIDES YOU
WITH DIFFERENT OR  INCONSISTENT  INFORMATION,  YOU SHOULD NOT RELY ON IT. WE ARE
NOT,  AND  MLPF&S  IS NOT,  MAKING  AN OFFER  TO SELL  THESE  SECURITIES  IN ANY
JURISDICTION WHERE THE OFFER OR SALE IS NOT PERMITTED.

         YOU SHOULD ASSUME THAT THE INFORMATION  APPEARING IN THIS PROSPECTUS IS
ACCURATE  AS OF THE  DATE OF  THIS  PROSPECTUS  ONLY.  OUR  BUSINESS,  FINANCIAL
CONDITION AND RESULTS OF OPERATIONS MAY HAVE CHANGED SINCE THAT DATE.

         YOU MAY  REQUEST A COPY OF ANY  FILINGS  REFERRED  TO ABOVE  (EXCLUDING
EXHIBITS),  AT NO COST, BY CONTACTING US AT THE FOLLOWING ADDRESS:  MR. LAWRENCE
M. EGAN,  JR.,  CORPORATE  SECRETARY'S  OFFICE,  MERRILL LYNCH & CO.,  INC., 100
CHURCH STREET, NEW YORK, NEW YORK 10080-6512, TELEPHONE: (212) 602-8435.

                              PLAN OF DISTRIBUTION

         THIS PROSPECTUS HAS BEEN PREPARED IN CONNECTION WITH SECONDARY SALES OF
THE MITTS  SECURITIES  AND IS TO BE USED BY MLPF&S WHEN MAKING  OFFERS AND SALES
RELATED TO MARKET-MAKING TRANSACTIONS IN THE MITTS SECURITIES.

         MLPF&S  MAY   ACT   AS   PRINCIPAL  OR  AGENT  IN  THESE  MARKET-MAKING
TRANSACTIONS.

         THE MITTS  SECURITIES MAY BE OFFERED ON THE NYSE OR OFF THE EXCHANGE IN
NEGOTIATED TRANSACTIONS OR OTHERWISE.

         THE   DISTRIBUTION  OF  THE  MITTS   SECURITIES  WILL  CONFORM  TO  THE
REQUIREMENTS  SET FORTH IN THE  APPLICABLE  SECTIONS OF RULE 2720 OF THE CONDUCT
RULES OF THE NASD.
    

                                     EXPERTS

   
         The  consolidated  financial  statements  AND THE  related  financial
statement  schedule  INCORPORATED  IN THIS  PROSPECTUS  BY REFERENCE  FROM THE
ANNUAL REPORT ON FORM 10-K OF MERRILL LYNCH & CO., INC. AND SUBSIDIARIES  have
been  audited by Deloitte & Touche  LLP,  independent  auditors,  as stated in
their reports (WHICH  EXPRESS AN  UNQUALIFIED  OPINION AND WHICH REPORT ON THE
consolidated  financial  statements INCLUDES AN EXPLANATORY  PARAGRAPH FOR THE
CHANGE IN  ACCOUNTING  METHOD FOR CERTAIN  INTERNAL-USE  SOFTWARE  DEVELOPMENT
COSTS),  WHICH  ARE  incorporated  herein  by  reference,  AND  HAVE  BEEN  SO
INCORPORATED  in  reliance  upon THE  reports  of SUCH FIRM  given  upon their
authority as experts in accounting and auditing.
    

<PAGE>
   
The information in this prospectus is not complete and may be changed. We may
not sell these securities until the registration statement filed with the
Securities and Exchange Commission is effective. This prospectus is not an
offer to sell these securities and it is not soliciting an offer to by these
securities in any state where the offer or sale is not permitted.
    

                             Subject to Completion

   
                  Preliminary Prospectus dated March 29, 1999
    

P R O S P E C T U S
- -------------------

                           Merrill Lynch & Co., Inc.
    Healthcare/Biotechnology Portfolio Market Index Target-Term Securities(R)
                             due October 31, 2001

   
                             "MITTS(R) Securities"
                             $10 principal amount

     This prospectus is to be used by Merrill Lynch & Co., Merrill Lynch,
Pierce, Fenner & Smith Incorporated, our wholly-owned subsidiary, when making
offers and sales related to market-making transactions in the MITTS
Securities.


<TABLE>
<S>                                          <C>
The MITTS Securities:                         Payment at Maturity:
o  100% principal protection at maturity      o  On the maturity date, for each unit of the
o  No payments before to the maturity date       MITTS Securities you own, we will pay you
o  Senior unsecured debt securities Merrill      an amount equal to the sum of the principal
   Lynch & Co., Inc.                             amount of each unit and an additional
o  Linked to the value of the                    amount based on the percentage increase, if
   Healthcare/Biotechnology Portfolio, as        any, in the value of the portfolio, adjusted
   described in this prospectus                  as described in this prospectus.
o  The MITTS Securities are listed on the     o  You will receive no less than the principal
   American Stock Exchange under the             amount of your MITTS Securities
   symbol "MLH".
</TABLE>



               Investing in the MITTS Securities involves risks.
                    See "Risk Factors" beginning on page 3.
    



     Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if
this prospectus is truthful or complete. Any representation to the contrary is
a criminal offense.



   
     The sale price of the MITTS Securities will be the prevailing market
price at the time of sale.



                               ----------------
    
                              Merrill Lynch & Co.
   
                               ----------------

             The date of this prospectus is                 , 1999.

     (R)"MITTS" and (R) Market Index Target-Term Securities" are registered
                  service marks of Merrill Lynch & Co., Inc.
    

<PAGE>

   
                               Table of Contents

                                                                          Page

RISK FACTORS.................................................................1

MERRILL LYNCH & CO., INC.....................................................4

RATIO OF EARNINGS TO FIXED CHARGES...........................................5

DESCRIPTION OF SECURITIES....................................................6

THE PORTFOLIO...............................................................13

OTHER TERMS.................................................................16

PROJECTED PAYMENT SCHEDULE..................................................20

WHERE YOU CAN FIND MORE INFORMATION.........................................20
    

INCORPORATION OF INFORMATION WE FILE WITH THE SEC...........................21

   
PLAN OF DISTRIBUTION........................................................22

EXPERTS.....................................................................22
    


<PAGE>


                                 RISK FACTORS

Payment at Maturity

   
You may not earn a return on your investment.

     You should be aware that at maturity we will pay you no more than $10 for
each unit of the MITTS Securities you own if the average value of the
portfolio over five trading days shortly before the maturity date is less than
115. This will be true even if at some time during the life of the MITTS
Securities, the value of the portfolio was higher than 115 but later falls
below 115.

Your yield may be lower than the yield on a standard debt security of
comparable maturity

     The amount we pay you at maturity may be less than the return you could
earn on other investments. Your yield may be less than the yield you would
earn if you bought a standard senior non-callable debt security of Merrill
Lynch & Co., Inc. with the same maturity date. Your investment may not reflect
the full opportunity cost to you when you take into account factors that
affect the time value of money.

Your return will not reflect the return of owning the stocks included in the
portfolio

     The portfolio does not reflect the payment of dividends on the stocks
underlying it.  Therefore your yield you receive based on the value of
portfolio at the maturity of the MITTS Securities will not be the same as the
yield you would receive if you had purchased the underlying stocks and held
them for a similar period.

Amounts payable on the MITTS Securities may be limited by state law

     New York State laws govern the indenture under which the MITTS Securities
were issued. New York has usury laws that limit the amount of interest that
can be charged and paid on loans, which includes debt securities like the
MITTS Securities. Under present New York law, the maximum rate of interest is
25% per annum on a simple interest basis. This limit may not apply to debt
securities in which $2,500,000 or more has been invested.
    

     While we believe that New York law would be given effect by a state or
Federal court sitting outside of New York, many other states also have laws
that regulate the amount of interest that may be charged to and paid by a
borrower. We will promise, for your benefit, to the extent permitted by law,
not to voluntarily claim the benefits of any laws concerning usurious rates of
interest.

   
There are many factors affecting the trading value of the MITTS Securities

     We expect that the trading value of the MITTS Securities will depend
substantially on the extent of the appreciation, if any, of the portfolio
value over 115. If, however, you sell your MITTS Securities prior to the
maturity date at a time when the portfolio value exceeds 115, the price you
receive may be at a substantial discount from the amount expected to be
payable if the excess of the portfolio value over 115 were to prevail until
maturity of the MITTS Securities because of the possible fluctuation of the
portfolio between the time of the sale and the time that the MITTS Securities
mature. Furthermore, the price at which you will be able to sell MITTS
Securities prior to maturity may be at a discount, which could be substantial,
from the principal amount thereof, if, at that time, the portfolio is below,
equal to, or not sufficiently above 115. A discount could also result from
rising interest rates.

     In addition to the value of the portfolio, a number of interrelated
factors, including those factors listed below may affect the trading value of
the MITTS Securities. The relationship among these factors is complex. The
expected effect on the trading value of the MITTS Securities of each of the
factors listed below, assuming in each case that all other factors are held
constant, is as follows:


<PAGE>


     Interest Rates. Because we will pay, at a minimum, the principal amount
per unit of the MITTS Securities at maturity, changes in interest rates will
likely affect the trading value of the MITTS Securities. In general, if U.S.
interest rates increase, we expect the trading value of the MITTS Securities
to decrease. Conversely, if U.S. interest rates decrease, we expect the
trading value of the MITTS Securities to increase. Interest rates may also
affect the U.S. economy, and, in turn, the value of the portfolio. Rising
interest rates may lower the value of the portfolio and, thus, may decrease
the trading value of the MITTS Securities. Falling interest rates may increase
the value of the portfolio and, thus, may increase the trading value of the
MITTS Securities.

     Volatility of the portfolio. If the volatility of the portfolio value
increases, we expect the trading value of the MITTS Securities to increase. If
the volatility of the portfolio value decreases, we expect the trading value
of the MITTS Securities to decrease.

     Time Remaining to Maturity. We anticipate that prior to maturity the
MITTS Securities may trade at a value above that which you may expect based on
the level of interest rates and the portfolio. This difference will reflect a
"time premium" due to expectations concerning the value of the portfolio
during the period prior to maturity of the MITTS Securities. As the time
remaining to maturity of the MITTS Securities decreases, however, this time
premium is expected to decrease, thus decreasing the trading value of the
MITTS Securities. In addition, the price at which you may be able to sell the
MITTS Securities prior to maturity may be at a discount, which may be
substantial, from the principal amount of the MITTS Securities if the value of
the portfolio is below, equal to, or not sufficiently above 115.

     Dividend Rates in the United States. If dividend rates on the stocks
included in the portfolio increase, we expect the trading value of the MITTS
Securities to decrease. Conversely, if dividend rates on the stocks included
in the portfolio decrease, we expect the value of the MITTS Securities to
increase. However, in general, rising U.S. corporate dividend rates may
increase the value of the portfolio and, in turn, increase the trading value
of the MITTS Securities. Conversely, falling U.S. corporate dividend rates may
decrease the value of the portfolio and, in turn, decrease the trading value
of the MITTS Securities.

     The impact of the factors specified above, excluding the value of the
portfolio, may offset, partially or in whole, any increase in the trading
value of the MITTS Securities that is attributable to an increase in the value
of the portfolio. For example, an increase in U.S. interest rates may cause
the MITTS Securities to trade at a discount from their initial offering price,
even if the portfolio has appreciated significantly. In general, assuming all
relevant factors are held constant, the effect on the trading value of the
MITTS Securities of a given change in interest rates, portfolio volatility
and/or dividend rates of stocks comprising the portfolio is expected to be
less if it occurs later in the term of the MITTS Securities than if it occurs
earlier in the term of the MITTS Securities. However, the effect on the
trading value of the MITTS Securities of a given appreciation of the portfolio
in excess 115 is expected to be greater if it occurs later in the term of the
MITTS Securities than if it occurs earlier in the term of the MITTS
Securities, assuming all other relevant factors are held constant.

Many factors affecting the stocks in the portfolio value will affect your
return

     Political, economic and other developments that affect the stocks
underlying the portfolio may adversely affect the value of the portfolio and
the value of the MITTS Securities. Since the stocks underlying the portfolio
are of companies involved in various segments of the healthcare industry and
the biotechnology industry, factors affecting these industries may affect the
value of the portfolio and therefore the trading value of the MITTS
Securities. See "The Portfolio--Healthcare and Biotechnology Industries".
    

Other Considerations

   
     We suggest that you reach an investment decision with regard to the MITTS
Securities only after carefully considering the suitability of the MITTS
Securities in light of your particular circumstances.

     You should also consider the tax consequences of investing in the MITTS
Securities, and should consult your tax advisor.


<PAGE>


     Our wholly-owned subsidiary, Merrill Lynch, Pierce, Fenner and Smith
Incorporated, or MLPF&S, or its affiliates may from time to time engage in
transactions involving the stocks included in the portfolio for their
proprietary accounts and for other accounts under their management, which may
influence the value of these stocks and therefore the value of the MITTS
Securities. MLPF&S and its affiliates will also be the counterparties to the
hedge of ML&Co.'s obligations under the MITTS Securities. Accordingly, in some
circumstances, conflicts of interest may arise between MLPF&S's
responsibilities as calculation agent for the MITTS Securities and its
obligations under its hedge and its status as a subsidiary of ML&Co. At times,
the duties of MLPF&S as calculation agent could conflict with the interests of
MLPF&S as an affiliate of the issuer of the MITTS Securities, Merrill Lynch &
Co., Inc., and with the interests of the holders of the MITTS Securities.


<PAGE>


                           MERRILL LYNCH & CO., INC.

     We are a holding company that, through our U.S. and non-U.S. subsidiaries
and affiliates such as Merrill Lynch, Pierce, Fenner & Smith Incorporated,
Merrill Lynch Government Securities Inc., Merrill Lynch Capital Services,
Inc., Merrill Lynch International, Merrill Lynch Capital Markets Bank Ltd.,
Merrill Lynch Asset Management L.P. and Merrill Lynch Mercury Asset
Management, provides investment, financing, advisory, insurance, and related
products on a global basis, including:

     o  securities brokerage, trading and underwriting;

     o  investment banking, strategic services, including mergers and
        acquisitions and other corporate finance advisory activities;

     o  asset management and other investment advisory and recordkeeping
        services;

     o  trading and brokerage of swaps, options, forwards, futures and other
        derivatives;

     o  securities clearance services;

     o  equity, debt and economic research;

     o  banking, trust and lending services, including mortgage lending and
        related services; and

     o  insurance sales and underwriting services.

     We provide these products and services to a wide array of clients,
including individual investors, small businesses, corporations, governments,
governmental agencies and financial institutions.

     Our principal executive office is located at World Financial Center,
North Tower, 250 Vesey Street, New York, New York 10281; our telephone number
is (212) 449-1000.

     If you want to find more information about us, please see the sections
entitled "Where You Can Find More Information" and "Incorporation of
Information We File with the SEC" in this prospectus.

     In this prospectus, "ML&Co.", "we", "us" and "our" refer specifically to
Merrill Lynch & Co., Inc., the holding company. ML&Co. is the issuer of the
MITTS Securities described in this prospectus.


<PAGE>


                      RATIO OF EARNINGS TO FIXED CHARGES

     In 1998, we acquired the outstanding shares of Midland Walwyn, Inc., in a
transaction accounted for as a pooling-of-interests. The following information
for the fiscal years 1994 through 1997 has been restated as if the two
entities had always been combined.

     The following table sets forth our historical ratios of earnings to fixed
charges for the periods indicated:

<TABLE>
<CAPTION>
                                                     Year Ended Last Friday in December
                                                 1994     1995     1996     1997      1998
                                                 -----------------------------------------
<S>                                              <C>      <C>      <C>      <C>       <C>
Ratio of earnings to fixed charges(a).......      1.2      1.2      1.2      1.2       1.1
</TABLE>

- ----------
(a)  The effect of combining Midland Walwyn did not change the ratios reported
     for the fiscal years 1994 through 1997.

     For the purpose of calculating the ratio of earnings to fixed charges,
"earnings" consist of earnings from continuing operations before income taxes
and fixed charges, excluding capitalized interest and preferred security
dividend requirements. "Fixed charges" consist of interest costs, the interest
factor in rentals, amortization of debt issuance costs, preferred security
dividend requirements of subsidiaries, and capitalized interest.
    


<PAGE>


                           DESCRIPTION OF SECURITIES

   
     On October 30, 1996, ML&Co. issued $15,000,000 aggregate principal amount
of Healthcare/Biotechnology MITTS Securities due October 31, 2001. The MITTS
Securities were issued as a series of senior debt securities under the 1983
Indenture which is more fully described in this prospectus.

     The MITTS Securities will mature on October 31, 2001.

     While at maturity a beneficial owner of a MITTS Security will receive the
principal amount of the MITTS Security plus the Supplemental Redemption Amount
described below, if any, there will be no other payment of interest, periodic
or otherwise. See "- Payment at Maturity" below.

     The MITTS Securities are not subject to redemption by ML&Co. or at the
option of any beneficial owner before maturity. Upon the occurrence of an
Event of Default, as defined below, with respect to the MITTS Securities,
beneficial owners of the MITTS Securities may accelerate the maturity of the
MITTS Securities, as described under "- Events of Default and Acceleration"
and "Other Terms - Events of Default" in this prospectus.

     The MITTS Securities were issued in denominations of whole units.
    

Payment at Maturity

   
     At the maturity date, a beneficial owner of a MITTS Security will be
entitled to receive the principal amount of that unit plus the Supplemental
Redemption Amount, if any, all as provided below. If the Ending Portfolio
Value does not exceed the Benchmark Portfolio Value, a beneficial owner of a
MITTS Security will be entitled to receive only the principal amount of its
MITTS Securities.

     The "Supplemental Redemption Amount" for a MITTS Security will be
determined by the calculation agent and will equal:

<TABLE>
<S>                                <C>  <C>
  Principal Amount ($10 per unit)   x    ( Value--Benchmark Portfolio  Value)
                                         ----------------------------------------------------
                                               Benchmark Portfolio Value

</TABLE>
    

provided, however, that in no event will the Supplemental Redemption Amount be
less than zero.

   
     The "Portfolio" means the Healthcare/Biotechnology Portfolio.

     The "Benchmark Portfolio Value" equals 115. The Benchmark Portfolio Value
was determined on the date the MITTS securities were priced for initial sale
to the public (the "Pricing Date"), by multiplying the Starting Portfolio
Value by a factor equal to 115%. Based on the individual prices of the stocks
included in the Portfolio (the "Portfolio Securities") on the Pricing Date,
the Multiplier for each Portfolio Security was initially set by the AMEX so
that, on the Pricing Date, the Portfolio Securities were equally
dollar-weighted in the Portfolio and the Portfolio Value equaled 100 (the
"Starting Portfolio Value").

     The "Ending Portfolio Value" will be determined by the calculation agent
and will equal the average or arithmetic mean of the closing values of the
Portfolio determined on each of the first five Calculation Days during the
Calculation Period. If there are fewer than five Calculation Days, then the
Ending Portfolio Value will equal the average or arithmetic mean of the
closing values of the Portfolio on those Calculation Days. If there is only
one Calculation Day, then the Ending Portfolio Value will equal the closing
value of the Portfolio on that Calculation Day. If no Calculation Days occur
during the Calculation Period because of Market Disruption Events, then the
Ending Portfolio Value will equal the closing value of the Portfolio
determined on the last scheduled Portfolio Business Day in the Calculation
Period, regardless of the occurrence of a Market Disruption Event on that day.
    


<PAGE>


     The "Calculation Period" means the period from and including the seventh
scheduled Portfolio Business Day prior to the maturity date to and including
the second scheduled Portfolio Business Day prior to the maturity date.

     "Calculation Day" means any Portfolio Business Day during the Calculation
Period on which a Market Disruption Event has not occurred.

   
     For purposes of determining the Ending Portfolio Value, a "Portfolio
Business Day" is a day on which the AMEX is open for trading and trading
generally occurs in the over-the-counter market for equity securities and the
Portfolio or any Successor Portfolio, as defined below on page 10, is
calculated and published.

     All determinations made by the calculation agent shall be at the sole
discretion of the calculation agent and, absent a determination by the
calculation agent of a manifest error, shall be conclusive for all purposes
and binding on ML&Co. and beneficial owners of the MITTS Securities.


<PAGE>


Hypothetical Returns
    

     The following table illustrates, for a range of hypothetical Ending
Portfolio Values,

   
     o  the total amount payable at maturity for each $10 principal amount of
        MITTS Securities, based on the Benchmark Portfolio Value, which equals
        115% of the Starting Portfolio Value;

     o  the pretax annualized rate of return to beneficial owners of MITTS
        Securities, and

     o  the pretax annualized rate of return of an investment in the stocks
        underlying the Portfolio, which includes an assumed aggregate dividend
        yield of 0.23% per annum, as more fully described below.
    

<TABLE>
<CAPTION>
                                            Total              Pretax        Pretax Annualized
 Hypothetical      Percentage Change        Amount       Annualized Rate of  Rate of Return of
    Ending         Over the Starting      Payable at        Return on the     Stock Underlying
Portfolio Value     Portfolio Value      Maturity(1)        Securities(2)    the Portfolio(2)(3)
- ---------------    -----------------     -----------     ------------------  -------------------
<S>                    <C>                <C>                  <C>              <C>
      50                 -50%              $ 10.00               0.00%           -13.09%
      60                 -40%              $ 10.00               0.00%            -9.66%
      70                 -30%              $ 10.00               0.00%            -6.71%
      80                 -20%              $ 10.00               0.00%            -4.11%
      90                 -10%              $ 10.00               0.00%            -1.79%
     100(4)                0%              $ 10.00               0.00%             0.23%
     110                  10%              $ 10.00               0.00%             2.23%
     120                  20%              $ 10.43               0.85%             4.00%
     130                  30%              $ 11.30               2.47%             5.64%
     140                  40%              $ 12.17               3.97%             7.17%
     150                  50%              $ 13.04               5.39%             8.60%
     160                  60%              $ 13.91               6.72%             9.96%
     170                  70%              $ 14.78               7.97%            11.23%
     180                  80%              $ 15.65               9.16%            12.45%
     190                  90%              $ 16.52              10.30%            13.60%
     200                 100%              $ 17.39              11.38%            14.70%
     210                 110%              $ 18.26              12.41%            15.75%
     220                 120%              $ 19.13              13.40%            16.76%
     230                 130%              $ 20.00              14.35%            17.77%
     240                 140%              $ 20.87              15.27%            18.66%
     250                 150%              $ 21.74              16.15%            19.56%
</TABLE>

(1)  The total amount payable at maturity is based on the Benchmark Portfolio
     Value, which equals 115% of the Starting Portfolio Value.

(2)  The annualized rates of return specified in the preceding table are
     calculated on a semiannual bond equivalent basis.

   
(3) This rate of return assumes:

          o         an investment of a fixed amount in the stocks underlying
               the Portfolio with the allocation of that amount reflecting the
               relative weights of the stocks in the Portfolio;

          o         a percentage change in the aggregate price of the stocks
               that equals the percentage change in the Portfolio from the
               Starting Portfolio Value to the relevant hypothetical Ending
               Portfolio Value;

          o         a constant dividend yield of 0.23% per annum, paid
               quarterly from the date of initial delivery of MITTS
               Securities, applied to the value of the Portfolio at the end of
               each quarter assuming this value increases or decreases
               linearly from the Starting Portfolio Value to the applicable
               hypothetical Ending Portfolio Value;


<PAGE>


          o         no transaction fees or expenses;

          o         a five year maturity of the MITTS Securities from the date
               of issuance; and

          o         a final Portfolio value equal to the Ending Portfolio
               Value. The aggregate dividend yield of the stocks underlying
               the Portfolio as of October 24, 1996 was approximately 0.23%
               per annum.
    

(4)  The Starting Portfolio Value was set at 100 based on the closing prices
     on the Pricing Date.

   
     The above figures are for purposes of illustration only. The actual
Supplemental Redemption Amount received by investors and the resulting pretax
annualized rate of return will depend entirely on the actual Ending Portfolio
Value determined by the calculation agent as provided in this prospectus.
    

Adjustments to the Portfolio; Market Disruption Events

   
     If at any time the method of calculating the Portfolio Value is changed
in any material respect, or if the Portfolio is in any other way modified so
that the Portfolio Value does not, in the opinion of the calculation agent,
fairly represent the Portfolio Value had these changes or modifications not
been made, then, from and after that time, the calculation agent shall, at the
close of business in New York, New York, on each date that the closing value
with respect to the Ending Portfolio Value is to be calculated, make any
adjustments as, in the good faith judgment of the calculation agent, may be
necessary in order to arrive at a calculation of a value of a stock index
comparable to the Portfolio Value as if any changes or modifications had not
been made, and calculate the closing value with reference to the Portfolio
Value, as adjusted. Accordingly, if the method of calculating the Portfolio
Value is modified so that the Portfolio Value is a fraction or a multiple of
what it would have been if it had not been modified, for example, due to a
split in the Portfolio Value, then the calculation agent shall adjust the
Portfolio Value in order to arrive at a Portfolio Value as if it had not been
modified, for example, as if the split had not occurred.

     "Market Disruption Event" means either of the following events, as
determined by the calculation agent:

     (a) the suspension or material limitation on the trading of three or more
of the Portfolio Securities on any exchange in the United States or in the
over-the-counter market for more than two hours of trading or during the
period one-half hour prior to the close of trading, or

     (b) the suspension or material limitation, whether by reason of movements
in price otherwise exceeding levels permitted by the relevant exchange or
otherwise, in the trading of option contracts related to three or more of the
Portfolio Securities traded on any exchange for more than two hours of trading
or during the period one-half hour prior to the close of trading.

     For the purposes of clause (a) above, any limitations on trading during
significant market fluctuations under New York Stock Exchange Rule 80A, or any
applicable rule or regulation enacted or promulgated by the NYSE or any other
self regulatory organization or the SEC of similar scope as determined by the
calculation agent, will be considered "material".
    

     For the purposes of this definition, a limitation on the hours in a
trading day and/or number of days of trading will not constitute a Market
Disruption Event if it results from an announced change in the regular
business hours of the relevant exchange.

Discontinuance of the Portfolio

   
     If the AMEX discontinues publication of the Portfolio Value and the AMEX
or another entity publishes a successor or substitute index that the
calculation agent determines, in its sole discretion, to be comparable to the
Portfolio Value (the "Successor Portfolio Value"), then, upon the calculation
agent's notification of this determination to the trustee and ML&Co., the
calculation agent will substitute the Successor Portfolio Value as calculated
by the AMEX or any other entity for the Portfolio Value and calculate the
Ending Portfolio Value as described above under "Payment at Maturity". Upon
any selection by the calculation agent of a Successor Portfolio Value, ML&Co.
shall cause notice to be given to holders of the MITTS Securities.

     If the AMEX discontinues publication of the Portfolio Value and a
Successor Portfolio Value is not selected by the calculation agent or is no
longer published on any of the Calculation Days, the value to be substituted
for the Portfolio Value for any Calculation Day used to calculate the
Supplemental Redemption Amount at maturity will be a value computed by the
calculation agent for each Calculation Day in accordance with the procedures
last used to calculate the Portfolio Value prior to any discontinuance. If a
Successor Portfolio Value is selected or the calculation agent calculates a
value as a substitute for the Portfolio Value as described below, the
Successor Portfolio Value or value calculated by the calculation agent shall
be substituted for the Portfolio Value for all purposes, including for
purposes of determining whether a Market Disruption Event exists.

     If the AMEX discontinues publication of the Portfolio Value prior to the
period during which the Supplemental Redemption Amount is to be determined and
the calculation agent determines that no Successor Portfolio Value is
available at that time, then on each Business Day until the earlier to occur
of

     o  the determination of the Ending Portfolio Value and

     o  a determination by the calculation agent that a Successor Portfolio
        Value is available,

the calculation agent shall determine the value that would be used in
computing the Supplemental Redemption Amount as described in the preceding
paragraph as if that day were a Calculation Day. The calculation agent will
cause notice of each value to be published not less often than once each month
in The Wall Street Journal or another newspaper of general circulation, and
arrange for information to be made available by telephone.

     Despite these alternative arrangements, discontinuance of the publication
of the Portfolio Value may adversely affect trading in the MITTS Securities.
    

Events of Default and Acceleration

   
     In case an Event of Default with respect to any MITTS Securities has
occured and is continuing, the amount payable to a beneficial owner of a MITTS
Security upon any acceleration permitted by the MITTS Securities, with respect
to each $10 principal amount, will be equal to: the principal amount plus an
additional amount of contingent interest calculated as though the date of
early repayment were the maturity date of the MITTS Securities. See
"Description of Securities--Payment at Maturity" in this prospectus. If a
bankruptcy proceeding is commenced in respect of ML&Co., the claim of the
beneficial owner of a MITTS Security may be limited, under Section 502(b)(2)
of Title 11 of the United States Code, to the principal amount of the MITTS
Security plus an additional amount of contingent interest calculated as though
the date of the commencement of the proceeding were the maturity date of the
MITTS Securities.

     In case of default in payment at the maturity date of the MITTS
Securities whether at their stated maturity or upon acceleration, from and
after the maturity date the MITTS Securities shall bear interest, payable upon
demand of the beneficial owners thereof, at the rate of 7.7% per annum to the
extent that payment of the interest shall be legally enforceable on the unpaid
amount due and payable on that date in accordance with the terms of the MITTS
Securities to the date payment of any amount has been made or duly provided
for.

Global Securities

     Description of the Global Securities

     Beneficial owners of the MITTS Securities may not receive physical
delivery of the MITTS Securities nor may they be entitled to have the MITTS
Securities registered in their names. The MITTS Securities currently are
represented by one or more fully registered global securities. Each global
security was deposited with, or on behalf of, The Depository Trust Company or
DTC (DTC, together with any successor, being a "depositary"), as depositary,
registered in the name of Cede & Co. (DTC's partnership nominee). Unless and
until it is exchanged in whole or in part for MITTS Securities in definitive
form, no global security may be transferred except as a whole by the
depositary to a nominee of the depositary or by a nominee of the depositary to
the depositary or another nominee of the depositary or by the depositary or
any nominee to a successor of the depositary or a nominee of that successor.

     So long as DTC, or its nominee, is a registered owner of a global
security, DTC or its nominee, as the case may be, will be considered the sole
owner or Holder of the MITTS Securities represented by a global security for
all purposes under the 1983 Indenture. Except as provided below, the
beneficial owners of the MITTS Securities represented by a global security
will not be entitled to have the MITTS Securities represented by the global
security registered in their names, will not receive or be entitled to receive
physical delivery of the MITTS Securities in definitive form and will not be
considered the owners or Holders under the 1983 Indenture, including for
purposes of receiving any reports delivered by ML&Co. or the trustee under the
1983 Indenture. Accordingly, each person owning a beneficial interest in a
global security must rely on the procedures of DTC and, if that person is not
a participant of DTC on the procedures of the participant through which that
person owns its interest, to exercise any rights of a Holder under the 1983
Indenture. ML&Co. understands that under existing industry practices, in the
event that ML&Co. requests any action of Holders or that an owner of a
beneficial interest in a global security desires to give or take any action
which a Holder is entitled to give or take under the 1983 Indenture, DTC would
authorize the participants holding the relevant beneficial interests to give
or take any action, and the participants would authorize beneficial owners
owning through those participants to give or take action or would otherwise
act upon the instructions of beneficial owners. Conveyance of notices and
other communications by DTC to participants, by participants to indirect
participants and by participants and indirect participants to beneficial
owners will be governed by arrangements among them, subject to any statutory
or regulatory requirements as may be in effect from time to time.

     DTC Procedures

     The following is based on information furnished by DTC:

     DTC is the securities depositary for the MITTS Securities. The MITTS
Securities were issued as fully registered securities registered in the name
of Cede & Co., DTC's partnership nominee. One or more fully registered global
securities were issued for the MITTS Securities in the aggregate principal
amount of the MITTS Securities, and were deposited with DTC.

     DTC is a limited-purpose trust company organized under the New York
Banking Law, a "banking organization" within the meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing corporation"
within the meaning of the New York Uniform Commercial Code, and a "clearing
agency" registered under to the provisions of Section 17A of the Securities
and Exchange Act of 1934, as amended. DTC holds securities that its
participants deposit with DTC. DTC also facilitates the settlement among
participants of securities transactions, such as transfers and pledges, in
deposited securities through electronic computerized book-entry changes in
participants' accounts, thereby eliminating the need for physical movement of
securities certificates. Direct participants of DTC include securities brokers
and dealers, banks, trust companies, clearing corporations and other
organizations. DTC is owned by a number of its direct participants and by the
NYSE, the AMEX and the National Association of Securities Dealers, Inc. Access
to the DTC's system is also available to others such as securities brokers and
dealers, banks and trust companies that clear through or maintain a custodial
relationship with a direct participant, either directly or indirectly. The
rules applicable to DTC and its participants are on file with the SEC.

     Purchases of MITTS Securities under DTC's system must be made by or
through direct participants, which will receive a credit for the MITTS
Securities on DTC's records. The ownership interest of each beneficial owner
is in turn to be recorded on the records of direct and indirect participants.
Beneficial owners will not receive written confirmation from DTC of their
purchase, but beneficial owners are expected to receive written confirmations
providing details of the transaction, as well as periodic statements of their
holdings, from the direct participants or indirect participants through which
the beneficial owner entered into the transaction. Transfers of ownership
interests in the MITTS Securities are to be accomplished by entries made on
the books of participants acting on behalf of beneficial owners.


<PAGE>


     To facilitate subsequent transfers, all MITTS Securities deposited with
DTC are registered in the name of DTC's partnership nominee, Cede & Co. The
deposit of MITTS Securities with DTC and their registration in the name of
Cede & Co. effect no change in beneficial ownership. DTC has no knowledge of
the actual beneficial owners of the MITTS Securities; DTC's records reflect
only the identity of the direct participants to whose accounts the MITTS
Securities are credited, which may or may not be the beneficial owners. The
participants will remain responsible for keeping account of their holdings on
behalf of their customers.

     Conveyance of notices and other communications by DTC to direct
participants, by direct participants to indirect participants, and by direct
and indirect participants to beneficial owners will be governed by
arrangements among them, subject to any statutory or regulatory requirements
as may be in effect from time to time.

     Neither DTC nor Cede & Co. will consent or vote with respect to the MITTS
Securities. Under its usual procedures, DTC mails an omnibus proxy to ML&Co.
as soon as possible after the applicable record date. The omnibus proxy
assigns Cede & Co.'s consenting or voting rights to those direct participants
identified in a listing attached to the omnibus proxy to whose accounts the
MITTS Securities are credited on the record date identified in a listing
attached to the omnibus proxy.

     Principal, premium, if any, and/or interest, if any, payments on the
MITTS Securities will be made in immediately available funds to DTC. DTC's
practice is to credit direct participants' accounts on the applicable payment
date in accordance with their respective holdings shown on the depositary's
records unless DTC has reason to believe that it will not receive payment on
that date. Payments by participants to beneficial owners will be governed by
standing instructions and customary practices, as is the case with securities
held for the accounts of customers in bearer form or registered in "street
name", and will be the responsibility of the participant and not of DTC, the
trustee or ML&Co., subject to any statutory or regulatory requirements as may
be in effect from time to time. Payment of principal, premium, if any, and/or
interest, if any, to DTC is the responsibility of ML&Co. or the trustee,
disbursement of payments to direct participants is the responsibility of DTC,
and disbursement of payments to the beneficial owners is the responsibility of
direct and indirect participants.

     Exchange for Certificated Securities

     If:

     o  the depositary is at any time unwilling or unable to continue as
        depositary and a successor depositary is not appointed by ML&Co.
        within 60 days,

     o  ML&Co. executes and delivers to the trustee a company order to the
        effect that the global securities shall be exchangeable, or

     o  an Event of Default under the 1983 Indenture has occurred and is
        continuing with respect to the MITTS Securities,

the global securities will be exchangeable for MITTS Securities in definitive
form of like tenor and of an equal aggregate principal amount, in
denominations of $10 and integral multiples of $10. The definitive MITTS
Securities will be registered in the name or names as the depositary shall
instruct the trustee. It is expected that instructions may be based upon
directions received by the depositary from participants with respect to
ownership of beneficial interests in the global securities.

     In addition, ML&Co. may decide to discontinue use of the system of
book-entry transfers through the depositary. In that event, MITTS Securities
in definitive form will be printed and delivered.

     The information in this section concerning DTC and DTC's system has been
obtained from sources that ML&Co. believes to be reliable, but ML&Co. takes no
responsibility for its accuracy.
    

Same-Day Settlement and Payment

   
     ML&CO. will make all payments of principal and the Supplemental
Redemption Amount, in immediately available funds so long as the MITTS
Securities are maintained in book-entry form.
    

                                 THE PORTFOLIO

   
     While the Portfolio consists of stocks of companies involved in various
segments of the healthcare industry and the biotechnology industry, the
Portfolio is not intended to provide an indication of the pattern of price
movements of common stocks of healthcare and biotechnology corporations
generally. All of the Portfolio Securities are registered under the Exchange
Act. Companies with securities registered under the Exchange Act are required
to file periodically financial and other information specified by the SEC.
Information provided to or filed with the SEC is available at the offices of
the SEC. Neither ML&Co. nor MLPF&S makes any representation or warranty as to
the accuracy or completeness of the reports. The inclusion of a Portfolio
Security in the Portfolio is not a recommendation to buy or sell that
Portfolio Security and neither ML&Co. nor any of its affiliates make any
representation to any purchaser of MITTS Securities as to the performance of
the Portfolio.

     ML&Co. or its affiliates may presently or from time to time engage in
business with one or more of the issuers of the Portfolio Securities,
including extending loans to, or making equity investments in, these issuers
or providing advisory services to these issuers, including merger and
acquisition advisory services. In the course of business, ML&Co. or its
affiliates may acquire non-public information about the issuers and, in
addition, one or more affiliates of ML&Co. may publish research reports about
the issuers. ML&Co. does not make any representation to any purchaser of MITTS
Securities with respect to any matters whatsoever relating to these issuers.
Any prospective purchaser of a MITTS Security should undertake an independent
investigation of the issuers of the Portfolio Securities as in its judgment is
appropriate to make an informed decision about an investment in the MITTS
Securities.
    

Healthcare and Biotechnology Industries

   
     The healthcare industry is subject to various federal, state and local
laws and regulations which are frequently subject to change in many ways that
can affect the price of the stocks of companies involved in the industry.
    

     The biotechnology industry segment is subject to many of the same factors
that affect the healthcare industry. In addition, the products produced by
biotechnology companies often entail costly research and development and can
be subject to extensive regulatory review prior to approval for sale.

Computation of the Portfolio Value

   
     The AMEX will generally calculate and disseminate the value of the
Portfolio based on the most recently reported prices of the Portfolio
Securities, as reported by the Exchanges, at approximately 15-second intervals
during the AMEX's business hours and at the end of each Portfolio Business Day
via the Consolidated Tape Association's Network B. The Portfolio Value, at any
time, will equal the sum of the products of these prices and the applicable
Multipliers for the Portfolio Securities. The Ending Portfolio Value, however,
is calculated by the calculation agent based on averaging the Portfolio Values
reported by the AMEX at the end of particular Portfolio Business Days. See
"Description of Securities--Payment at Maturity". The securities listed below
are the Portfolio Securities and will be used to calculate the value of the
Portfolio. Holders of the MITTS will not have any right to receive the
Portfolio Securities. The following table sets forth the issuers of the
Portfolio Securities, the exchanges, the percentage of each Portfolio Security
in the Starting Portfolio Value and the initial Multipliers:
    


<PAGE>


<TABLE>
<CAPTION>
                                                                        Approximate
                                                                           Market         % of
                                                                       Capitalization   Starting
         Issuer of the                              Industry               as of       Portfolio    Initial
      Portfolio Security        Exchanges           Segment           October 23, 1996   Value    Multiplier
      -------------------       ---------           --------          ---------------- ---------  ----------

                                                                       (In Millions)
<S>                           <C>        <C>                                <C>           <C>      <C>
Amgen Inc..................... Nasdaq     Biotechnology                      16,312.14     4%       0.0640000
Apria Healthcare Group Inc. .  NYSE       Health--Specialty                     874.73     4%       0.2269504
Baxter International Inc...... NYSE       Hospital Supplies                  11,718.40     4%       0.0981595
Beverly Enterprises........... NYSE       Health--Long Term Care              1,166.27     4%       0.3368421
Biogen, Inc. ................. Nasdaq     Biotechnology                       2,870.02     4%       0.0487805
Chiron Corporation............ Nasdaq     Biotechnology                       3,270.62     4%       0.2077922
Columbia/HCA Healthcare
   Corporation................ NYSE       Hospital Management                24,148.37     4%       0.1126761
Emcare Holdings Inc. ......... Nasdaq     Health--Specialty                     215.90     4%       0.1502347
Genzyme Corporation........... Nasdaq     Biotechnology                       1,629.46     4%       0.1649485
Genesis Health Ventures, Inc.. NYSE       Health--Long Term Care                730.63     4%       0.1675393
Health Management Associates,
   Inc........................ NYSE       Hospital Management                 2,495.82     4%       0.1729730
Healthsource, Inc. ........... NYSE       Health Maintenance Organization       741.34     4%       0.3440860
Healthsouth Corporation....... NYSE       Health--Specialty                   5,909.69     4%       0.1038961
Humana Inc.................... NYSE       Health Maintenance Organization     3,086.40     4%       0.2105263
Johnson & Johnson............. NYSE       Hospital Supplies                  66,327.34     4%       0.0822622
Medpartners/Mullikin, Inc..... NYSE       Health Maintenance Organization     1,205.26     4%       0.1720430
Neuromedical Systems, Inc..... Nasdaq     Health--Specialty                     516.75     4%       0.2162162
Olsten Corporation............ NYSE       Health--Specialty                    1,283.15    4%       0.1739130
Oxford Health Plans, Inc...... Nasdaq     Health Maintenance Organization     3,441.59     4%       0.0871935
Phycor, Inc. ................. Nasdaq     Health Maintenance Organization     1,759.06     4%       0.1216730
Quorum Health Group, Inc. .... Nasdaq     Hospital Management                 1,291.42     4%       0.1428571
Renal Treatment Centers, Inc.. NYSE       Health--Specialty                     683.50     4%       0.1361702
Tenet Healthcare Corporation.. NYSE       Hospital Management                 4,476.70     4%       0.1893491
Total   Renal  Care   Holdings,
   Inc. ...................... NYSE       Health--Specialty                   1,119.74     4%       0.0932945
United Healthcare Corporation. NYSE       Health maintenance Organization     6,657.24     4%       0.1126761
</TABLE>

   
     The initial Multiplier relating to each Portfolio Security indicates the
number of shares of the Portfolio Security, given the market price of the
Portfolio Security, required to be included in the calculation of the Starting
Portfolio Value so that each Portfolio Security represents an equal percentage
of the Starting Portfolio Value. The price of each Portfolio Security used to
calculate the initial Multiplier relating to each Portfolio Security was the
closing price of the Portfolio Security on the Pricing Date. The respective
Multipliers will remain constant for the term of the MITTS Securities unless
adjusted for particular corporate events, as described below.
    

Adjustments to the Multiplier and Portfolio

   
     The AMEX will adjust the Multiplier with respect to any Portfolio
Security and the Portfolio as follows:

     1. If a Portfolio Security is subject to a stock split or reverse stock
split, then once the split has become effective, the Multiplier relating to
the Portfolio Security will be adjusted to equal the product of the number of
shares issued with respect to one share of the Portfolio Security and the
prior multiplier.

     2. If a Portfolio Security is subject to a stock dividend, issuance of
additional shares of the Portfolio Security, that is given equally to all
holders of shares of the issuer of that Portfolio Security, then once the
dividend has become effective and that Portfolio Security is trading
ex-dividend, the Multiplier will be adjusted so that the new Multiplier shall
equal the former Multiplier plus the product of the number of shares of that
Portfolio Security issued with respect to one share of that Portfolio Security
and the prior multiplier.

     3. There will be no adjustments to the Multipliers to reflect cash
dividends or distributions paid on a Portfolio Security other than for
Extraordinary Dividends as described below. A cash dividend with respect to a
Portfolio Security will be deemed to be an "Extraordinary Dividend" if that
dividend exceeds the immediately preceding non-Extraordinary Dividend for the
Portfolio Security by an amount equal to at least 10% of the market price on
the Portfolio Business Day preceding the record day for the payment of the
Extraordinary Dividend (the "ex-dividend date"). If an Extraordinary Dividend
occurs with respect to a Portfolio Security, the Multiplier of the Portfolio
Security will be adjusted on the ex-dividend date with respect to that
Extraordinary Dividend so that the new Multiplier will equal the product of
the then current Multiplier and a fraction, the numerator of which is the sum
of the Extraordinary Dividend Amount and the market price on the Trading Day
preceding the ex-dividend date, and the denominator of which is the market
price on the Trading Day preceding the ex-dividend date. The "Extraordinary
Dividend Amount" with respect to an Extraordinary Dividend for a Portfolio
Security will equal the Extraordinary Dividend minus the amount of the
immediately preceding non-Extraordinary Dividend for that Portfolio Security.

     4. If the issuer of a Portfolio Security is being liquidated or is
subject to a proceeding under any applicable bankruptcy, insolvency or other
similar law, the Portfolio Security will continue to be included in the
Portfolio so long as a market price for the Portfolio Security is available.
If a market price is no longer available for a Portfolio Security for whatever
reason, including the liquidation of the issuer of the Portfolio Security or
the subjection of the issuer of the Portfolio Security to a proceeding under
any applicable bankruptcy, insolvency or other similar law, then the value of
that Portfolio Security will equal zero in connection with calculating the
Portfolio Value and the Ending Portfolio Value for so long as no market price
is available, and no attempt will be made to find a replacement stock or
increase the value of the Portfolio to compensate for the deletion of the
Portfolio Security.

     5. If the issuer of a Portfolio Security has been subject to a merger or
consolidation and is not the surviving entity or is nationalized, then a value
for that Portfolio Security will be determined at the time the issuer is
merged or consolidated or nationalized and will equal the last available
market price for the Portfolio Security and that value will be constant for
the remaining term of the MITTS Securities. At that time, no adjustment will
be made to the Multiplier of the Portfolio Security. ML&Co. may at its sole
discretion increase the last available market price to reflect payments or
dividends of cash, securities or other consideration to holders of the
Portfolio Security in connection with the merger or consolidation which may
not be reflected in the last available market price.

     6. If the issuer of a Portfolio Security issues to all of its
shareholders equity securities that are publicly traded of an issuer other
than the issuer of the Portfolio Security, then the new equity securities will
be added to the Portfolio as a new Portfolio Security. The Multiplier for the
new Portfolio Security will equal the product of the original Multiplier of
the Portfolio Security for which the new Portfolio Security is being issued
(the "Original Portfolio Security") and the number of shares of the new
Portfolio Security issued with respect to one share of the Original Portfolio
Security.

     No adjustments of any Multiplier of a Portfolio Security will be required
unless the adjustment would require a change of at least 1% in the Multiplier
then in effect. The Multiplier resulting from any of the adjustments specified
above will be rounded to the nearest one thousandth with five ten-thousandths
being rounded upward.
    

     The AMEX expects that no adjustments to the Multiplier of any Portfolio
Security or to the Portfolio will be made other than those specified above,
however, the AMEX may at its discretion make adjustments to maintain the
economic intent of the Portfolio.

   
     The value of the Portfolio is reported on the AMEX and Bloomberg  under the
symbol "MXH" and on Reuters under the symbol ".MXH".
    

   
     A potential investor should review the historical performance of the
Portfolio. The historical performance of the Portfolio should not be taken as
an indication of future performance, and no assurance can be given that the
Portfolio will increase sufficiently to cause the beneficial owners of the
MITTS Securities to receive an amount in excess of the principal amount at the
maturity of the MITTS Securities.


    


                                  OTHER TERMS

   
     ML&Co. issued the MITTS Securities as a series of senior debt securities
under the 1983 Indenture, dated as of April 1, 1983, as amended and restated,
between ML&Co. and The Chase Manhattan Bank, as trustee. A copy of the 1983
Indenture is filed as an exhibit to the registration statement relating to the
MITTS Securities of which this prospectus is a part. The following summaries
of the material provisions of the 1983 Indenture are not complete and are
subject to, and qualified in their entirety by reference to, all provisions of
the 1983 Indenture, including the definitions of terms in the 1983 Indenture.

     ML&Co. may issue series of senior debt securities from time to time under
the 1983 Indenture, without limitation as to aggregate principal amount, in
one or more series and upon terms as ML&Co. may establish under the provisions
of the 1983 Indenture.

     The 1983 Indenture and the MITTS Securities are governed by and construed
in accordance with the laws of the State of New York.

     ML&Co. may issue senior debt securities with terms different from those
of senior debt securities previously issued, and issue additional senior debt
securities of a previously issued series of senior debt securities.

     The senior debt securities are unsecured and rank equally with all other
unsecured and unsubordinated indebtedness of ML&Co. However, because ML&Co. is
a holding company, the rights of ML&Co. and its creditors, including the
holders of senior debt securities, to participate in any distribution of the
assets of any subsidiary upon its liquidation or reorganization or otherwise
are necessarily subject to the prior claims of creditors of the subsidiary,
except to the extent that a bankruptcy court may recognize claims of ML&Co.
itself as a creditor of the subsidiary. In addition, dividends, loans and
advances from certain subsidiaries, including MLPF&S, to ML&Co. are restricted
by net capital requirements under the Exchange Act, and under rules of
exchanges and other regulatory bodies.
    

Limitations Upon Liens

   
     ML&Co. may not, and may not permit any majority-owned subsidiary to,
create, assume, incur or permit to exist any indebtedness for borrowed money
secured by a pledge, lien or other encumbrance, other than those liens
specifically permitted by the 1983 Indenture, on the Voting Stock owned
directly or indirectly by ML&Co. of any majority-owned subsidiary, other than
a majority-owned subsidiary which, at the time of the incurrence of the
secured indebtedness, has a net worth of less than $3,000,000, unless the
outstanding senior debt securities are secured equally and ratably with the
secured indebtedness.

     "Voting Stock" is defined in the 1983 Indenture as the stock of the class
or classes having general voting power under ordinary circumstances to elect
at least a majority of the board of directors, managers or trustees of a
corporation provided that, for the purposes of the 1983 Indenture, stock that
carries only the right to vote conditionally on the occurrence of an event is
not considered voting stock whether or not the event has happened.
    


<PAGE>


Limitation on Disposition of Voting Stock of, and Merger and Sale of Assets
by, MLPF&S

   
     ML&Co. may not sell, transfer or otherwise dispose of any Voting Stock of
MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of its
Voting Stock, unless, after giving effect to any such transaction, MLPF&S
remains a Controlled Subsidiary.

     "Controlled Subsidiary" is defined in the 1983 Indenture to mean a
corporation more than 80% of the outstanding shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

     In addition, ML&Co. may not permit MLPF&S to:

     o  merge or consolidate, unless the surviving company is a Controlled
        Subsidiary, or
    

     o  convey or transfer its properties and assets substantially as an
        entirety, except to one or more Controlled Subsidiaries.

Merger and Consolidation

   
     ML&Co. may consolidate or merge with or into any other corporation and
ML&Co. may sell, lease or convey all or substantially all of its assets to any
corporation, provided that:

     o  the resulting corporation, if other than ML&Co., is a corporation
        organized and existing under the laws of the United States of America
        or any U.S. state and assumes all of ML&Co.'s obligations to:

          o  pay any amounts due and payable or deliverable with respect to
             all the senior debt securities; and

          o  perform and observe all of ML&Co.'s obligations under the 1983
             Indenture, and

     o  ML&Co. or the successor corporation, as the case may be, is not,
        immediately after any consolidation or merger, in default under the
        1983 Indenture.
    

Modification and Waiver

   
     ML&Co. and the trustee may modify and amend the 1983 Indenture with the
consent of holders of at least 66 2/3% in principal amount of each outstanding
series of senior debt securities affected. However, without the consent of
each holder of any outstanding senior debt security affected, no amendment or
modification to the 1983 Indenture may:

     o  change the stated maturity date of the principal of, or any
        installment of interest or Additional Amounts payable on, any senior
        debt security or any premium payable on redemption, or change the
        redemption price;

     o  reduce the principal amount of, or the interest or Additional Amounts
        payable on, any senior debt security or reduce the amount of principal
        which could be declared due and payable before the stated maturity
        date;

     o  change the place or currency of any payment of principal or any
        premium, interest or Additional Amounts payable on any senior debt
        security;

     o  impair the right to institute suit for the enforcement of any payment
        on or with respect to any senior debt security;

     o  reduce the percentage in principal amount of the outstanding senior
        debt securities of any series, the consent of whose holders is
        required to modify or amend the 1983 Indenture; or


<PAGE>


     o  modify the foregoing requirements or reduce the percentage of
        outstanding senior debt securities necessary to waive any past default
        to less than a majority.

     No modification or amendment of ML&Co.'s Subordinated Indenture or any
Subsequent Indenture for subordinated debt securities may adversely affect the
rights of any holder of ML&Co.'s senior indebtedness without the consent of
each holder affected. The holders of at least a majority in principal amount
of outstanding senior debt securities of any series may, with respect to that
series, waive past defaults under the 1983 Indenture and waive compliance by
ML&Co. with provisions in the 1983 Indenture, except as described under
"--Events of Default".

Events of Default

     Each of the following will be Events of Default with respect to senior
debt securities of any series:

     o  default in the payment of any interest or Additional Amounts payable
        when due and continuing for 30 days;

     o  default in the payment of any principal or premium when due;

     o  default in the deposit of any sinking fund payment, when due;

     o  default in the performance of any other obligation of ML&Co. contained
        in the 1983 Indenture for the benefit of that series or in the senior
        debt securities of that series, continuing for 60 days after written
        notice as provided in the 1983 Indenture;

     o  specified events in bankruptcy, insolvency or reorganization of
        ML&Co.; and

     o  any other Event of Default provided with respect to senior debt
        securities of that series which are not inconsistent with the 1983
        Indenture.

     If an Event of Default occurs and is continuing for any series of senior
debt securities, other than as a result of the bankruptcy, insolvency or
reorganization of ML&Co., the trustee or the holders of at least 25% in
principal amount of the outstanding senior debt securities of that series may
declare all amounts, or any lesser amount provided for in the senior debt
securities, due and payable or deliverable immediately. At any time after a
declaration of acceleration has been made with respect to senior debt
securities of any series but before the trustee has obtained a judgment or
decree for payment of money, the holders of a majority in principal amount of
the outstanding senior debt securities of that series may rescind any
declaration of acceleration and its consequences, if all payments due, other
than those due as a result of acceleration, have been made and all Events of
Default have been remedied or waived.

     The holders of a majority in principal amount or aggregate issue price of
the outstanding senior debt securities of that series may waive any Event of
Default with respect to that series, except a default:

     o  in the payment of any amounts due and payable or deliverable under the
        debt securities of that series; or

     o  in respect of an obligation or provision of the 1983 Indenture which
        cannot be modified under the terms of that Indenture without the
        consent of each holder of each outstanding security of each series of
        senior debt securities affected.

     The holders of a majority in principal amount of the outstanding senior
debt securities of a series may direct the time, method and place of
conducting any proceeding for any remedy available to the trustee or
exercising any trust or power conferred on the trustee with respect to those
senior debt securities, provided that any direction shall not be in conflict
with any rule of law or the 1983 Indenture. Before proceeding to exercise any
right or power under the 1983 Indenture at the direction of the holders, the
trustee shall be entitled to receive from the holders reasonable security or
indemnification against the costs, expenses and liabilities which might be
incurred by it in complying with any direction.


<PAGE>


     The MITTS Securities and other series of senior debt securities issued
under the 1983 Indenture do not have the benefit of any cross-default
provisions with other indebtedness of ML&Co.

     ML&Co. is required to furnish to the trustee annually a statement as to
the fulfillment by ML&Co. of all of its obligations under the 1983 Indenture.


<PAGE>


                          PROJECTED PAYMENT SCHEDULE

     Solely for purposes of applying final Treasury regulations (the "Final
Regulations") concerning the United States Federal income tax treatment of
contingent payment debt instruments to the Securities, ML&Co. has determined
that the projected payment schedule for the MITTS Securities will consist of
payment on the maturity date of the principal amount thereof and a
Supplemental Redemption Amount equal to $3.8425 per unit. This represents an
estimated yield on the MITTS Securities equal to 6.61% per annum (compounded
semiannually).

     The projected payment schedule (including both the projected Supplemental
Redemption Amount and the estimated yield on the MITTS Securities) has been
determined solely for United States Federal income tax purposes (i.e., for
purposes of applying the Final Regulations to the MITTS Securities), and is
not a prediction of what the actual Supplemental Redemption Amount will be, or
that the actual Supplemental Redemption Amount will even exceed zero.

     The following table sets forth the amount of interest that will be deemed
to have accrued with respect to each unit of the MITTS Securities during each
accrual period over the term of the MITTS Securities based upon the projected
payment schedule for the MITTS Securities (including both the projected
Supplemental Redemption Amount and the estimated yield equal to 6.61% per
annum (compounded semiannually)) as determined by ML&Co. for purposes of the
application of the Final Regulations to the MITTS Securities:

<PAGE>

<TABLE>
<CAPTION>
                                                                      Total Interest Deemed
                                                                       to Have Accrued on
                                               Interest Deemed to    Securities as of End
                                             Accrue During Accrual      of Accrual Period
         Accrual Period                        Period (per unit)           (per  unit)
         --------------                      ---------------------   ----------------------
    

<S>                                                 <C>                     <C>
October 30, 1996 through April 30, 1997....          $0.3305                 $0.3305
May 1, 1997 through October 31, 1997.......          $0.3414                 $0.6719
November 1, 1997 through April 30, 1998....          $0.3527                 $1.0246
   
May 1, 1998  through October 31, 1998.....           $0.3644                 $1.3890
    
November 1, 1998 through April 30, 1999....          $0.3764                 $1.7654
May 1, 1999 through October 31, 1999.......          $0.3888                 $2.1542
November 1, 1999 through April 30, 2000....          $0.4017                 $2.5559
May 1, 2000 through October 31, 2000.......          $0.4150                 $2.9709
November 1, 2000 through April 30, 2001....          $0.4287                 $3.3996
May 1, 2001 through October 31, 2001.......          $0.4429                 $3.8425
</TABLE>

- ---------
   
Projected Supplemental Redemption Amount = $3.8425 per unit

     Investors in the MITTS Securities may also obtain the projected payment
schedule, as determined by ML&Co. for purposes of the application of the Final
Regulations to the MITTS Securities, by submitting a written request for the
information to Merrill Lynch & Co., Inc., Attn: Darryl W. Colletti, Office of
the Corporate Secretary, 100 Church Street, New York, New York 10080.


                      WHERE YOU CAN FIND MORE INFORMATION

     We file reports, proxy statements and other information with the SEC. Our
SEC filings are also available over the Internet at the SEC's web site at
http://www.sec.gov. You may also read and copy any document we file by
visiting the SEC's public reference rooms in Washington, D.C., New York, New
York, and Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further
information about the public reference rooms. You may also inspect our SEC
reports and other information at the New York Stock Exchange, Inc., 20 Broad
Street, New York, New York 10005.


<PAGE>


     We have filed a registration statement on Form S-3 with the SEC covering
the MITTS Securities and other securities. For further information on ML&Co.
and the MITTS Securities, you should refer to our registration statement and
its exhibits. This prospectus summarizes material provisions of contracts and
other documents that we refer you to. Because the prospectus may not contain
all the information that you may find important, you should review the full
text of these documents. We have included copies of these documents as
exhibits to our registration statement of which this prospectus is a part.


               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

     The SEC allows us to incorporate by reference the information we file
with them, which means:

     o  incorporated documents are considered part of the prospectus;

     o  we can disclose important information to you by referring you to those
        documents; and

     o  information that we file with the SEC will automatically update and
        supersede this incorporated information.

     We incorporate by reference the documents listed below which were filed
with the SEC under the Exchange Act:

     o  annual report on Form 10-K for the year ended December 25, 1998; and

     o  current reports on Form 8-K dated December 28, 1998, January 19, 1999,
        February 17, 1999, February 18, 1999, February 22, 1999, February 23,
        1999 and March 26, 1999.

     We also incorporate by reference each of the following documents that we
will file with the SEC after the date of this prospectus until this offering
is completed or after the date of this initial registration statement and
before the effectiveness of the registration statement:

     o  reports filed under Sections 13(a) and (c) of the Exchange Act;

     o  definitive proxy or information statements filed under Section 14 of
        the Exchange Act in connection with any subsequent stockholders'
        meeting; and

     o  any reports filed under Section 15(d) of the Exchange Act.

     You should rely only on information contained or incorporated by
reference in this prospectus. We have not, and MLPF&S has not, authorized any
other person to provide you with different information. If anyone provides you
with different or inconsistent information, you should not rely on it. We are
not, and MLPF&S is not, making an offer to sell these securities in any
jurisdiction where the offer or sale is not permitted.

     You should assume that the information appearing in this prospectus is
accurate as of the date of this prospectus only. Our business, financial
condition and results of operations may have changed since that date.

     You may request a copy of any filings referred to above (excluding
exhibits), at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan, Jr., Corporate Secretary's Office, Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.


<PAGE>


                             PLAN OF DISTRIBUTION

     This prospectus has been prepared in connection with secondary sales of
the MITTS Securities and is to be used by MLPF&S when making offers and sales
related to market-making transactions in the MITTS Securities.

     MLPF&S may act as principal or agent in these market-making transactions.

     The MITTS Securities are listed on the AMEX and may be offered on the
CBOE and NYSE or off an exchange in negotiated transactions or otherwise.

     The distribution of the MITTS Securities will conform to the requirements
set forth in the applicable sections of Rule 2720 of the Conduct Rules of the
NASD.
    

                                    EXPERTS

   
     The consolidated financial statements and the related financial statement
schedule incorporated in this prospectus by reference from the Annual Report on
Form 10-K of Merrill Lynch & Co., Inc. and subsidiaries have been audited by
Deloitte & Touche LLP, independent auditors, as stated in their reports (which
express an unqualified opinion and which report on the consolidated financial
statements includes an explanatory paragraph for the change in accounting method
for certain internal-use software development costs), which are incorporated
herein by reference, and have been so incorporated in reliance upon the reports
of such firm given upon their authority as experts in accounting and auditing.

    

<PAGE>
   
The information in this prospectus is not complete and may be changed.  We may
not sell these securities until the registration statement filed with the
Securities and Exchange Commission is effective.  This prospectus is not an
offer to sell these securities and it is not soliciting an offer to buy these
securities in any state where the offer or sale is not permitted.
    

                             Subject to Completion
   
                  Preliminary Prospectus dated March 29, 1999
    



P R O S P E C T U S
- -------------------

                           Merrill Lynch & Co., Inc.
      Technology Market Index Target-Term Securities(R) due August 15, 2001
   
                             "MITTS(R) Securities"
                             $10 principal amount

     This prospectus is to be used by Merrill Lynch & Co., Merrill Lynch,
Pierce, Fenner & Smith Incorporated, our wholly-owned subsidiary, when making
offers and sales related to market-making transactions in the MITTS
Securities.



<TABLE>
<S>                                             <C>
The MITTS Securities:                            Payment at Maturity:
o  100% principal protection at maturity         o  On the maturity date, for each unit of the
o  No payments before the maturity date             MITTS Securities you own, we will pay you
o  Senior unsecured debt securities of Merrill      an amount equal to the sum of the principal
   Lynch & Co., Inc.                                amount of each unit and an additional
o  Linked to the value of the Chicago Board of      amount based on the percentage increase, if
   Options Exchange Technology Index, as            any, in the value of the index, adjusted as
   further described in this prospectus             described in this prospectus.
o  The MITTS Securities are listed on the        o  At maturity you will receive no less than
   Chicago Board of Options Exchange and            the principal amount of your MITTS
   the New York Stock Exchange under the            Securities and no more than $20.
   symbol "TKM".
</TABLE>

               Investing in the MITTS Securities involves risks.
                    See "Risk Factors" beginning on page 3.
    

     Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if
this prospectus is truthful or complete. Any representation to the contrary is
a criminal offense.

   
     The sale price of the MITTS Securities will be the prevailing market
price at the time of sale.

                               ----------------
    

                              Merrill Lynch & Co.

   
                               ----------------

                The date of this prospectus is          , 1999.

- --------------------
     (R)"MITTS" and "Market Index Target-Term Securities" are service marks
of Merrill Lynch & Co., Inc.
*    The use and reference of the term "CBOE Technology Index" in this
prospectus has been consented to by the CBOE.
     The "CBOE Technology Index" is a service mark of the CBOE.


<PAGE>


                               Table of Contents

                                                                          Page

RISK FACTORS.................................................................3

MERRILL LYNCH & CO., INC.....................................................5

RATIO OF EARNINGS TO FIXED CHARGES...........................................6

DESCRIPTION OF SECURITIES....................................................7

THE INDEX...................................................................14

OTHER TERMS.................................................................17
    

INCORPORATION OF INFORMATION WE FILE WITH THE SEC...........................21

   
PLAN OF DISTRIBUTION........................................................22

EXPERTS.....................................................................22


<PAGE>


                                 RISK FACTORS

     You may not earn a return on your investment

     You should be aware that at maturity we will pay you no more than $10 for
each unit of the MITTS Securities you own if the average value of the index
over five trading days shortly before the maturity date is less than 189.48.

     Your yield may be lower than the yield on a standard debt security of
comparable maturity

     The amount we pay you at maturity may be less than the return you could
earn on other investments. Your yield may be less than the yield you would
earn if you bought a standard senior non-callable debt security of Merrill
Lynch & Co., Inc. with the same maturity date. Your investment may not reflect
the full opportunity cost to you when you take into account factors that
affect the time value of money.

     Yield on the MITTS Securities is subject to a maximum amount

     Because the amount, in addition to the principal amount of the MITTS
Securities, if any, we will pay you at maturity, will not exceed $10 per unit
of MITTS Securities, you will not benefit from index increases in excess of
approximately 125% of the closing index value on the date the MITTS Securities
were priced for initial sale to the public.

     Your return will not reflect the return of owning the stocks included in
the index

     The index does not reflect the payment of dividends on the stocks
underlying it and therefore the yield based on the index to the maturity of
the MITTS Securities will not produce the same yield as if you purchased the
underlying stocks and held them for a similar period.

There are many factors affecting the trading value of the MITTS Securities

     The trading value of the MITTS Securities is expected to depend
substantially on the extent of the appreciation, if any, of the index over
189.48. If, however, you sell your MITTS Securities prior to the maturity date
at a time when the index exceeds 189.48, the price you receive may be at a
substantial discount from the amount expected to be payable if the excess of
the index over 189.48 were to prevail until maturity of the MITTS Securities
because of the possible fluctuation of the index between the time of the sale
and the time that the MITTS Securities mature. Furthermore, the price at which
you will be able to sell the MITTS Securities prior to maturity may be at a
discount, which could be substantial, from the principal amount thereof, if,
at that time, the index is below, equal to, or not sufficiently above 189.48.
The $20 limitation on payment at maturity of the MITTS Securities may
adversely affect the secondary market value of the MITTS Securities. A
discount could also result from rising interest rates.

     In addition to the value of the index, a number of interrelated factors,
including the creditworthiness of ML&Co. and those factors listed below, may
affect the trading value of the MITTS Securities. The relationship among these
factors is complex, including how these factors affect the amount to be repaid
at maturity. Accordingly, you should be aware that factors other than the
level of the index are likely to affect the MITTS Securities' trading value.
The expected effect on the trading value of the MITTS Securities of each of
the factors listed below, assuming in each case that all other factors are
held constant, is as follows:

     Interest Rates. Because we will pay, at a minimum, the principal amount
per unit of MITTS Securities at maturity, we expect the trading value of the
MITTS Securities will likely be affected by changes in interest rates. In
general, we anticipate that if U.S. interest rates increase, the trading value
of the MITTS Securities is expected to decrease. Conversely, if U.S. interest
rates decrease, the trading value of the MITTS Securities is expected to
increase. Interest rates may also affect the U.S. economy, and, in turn, the
value of the Index. Rising interest rates may lower the value of the index
and, thus, may decrease the trading value of the MITTS Securities. Falling
interest rates may increase the value of the index and, thus, may increase the
trading value of the MITTS Securities.


<PAGE>


     Volatility of the Index. If the volatility of the index increases, we
expect that the trading value of the MITTS Securities will increase. If the
volatility of the index decreases, we expect that the trading value of the
MITTS Securities will decrease.

     Time Remaining to Maturity. We believe that before maturity the MITTS
Securities may trade at a value above that which you may expect from the level
of interest rates and the index. This difference will reflect a "time premium"
due to expectations concerning the value of the index during the period prior
to maturity of the MITTS Securities. As the time remaining to maturity of the
MITTS Securities decreases, however, we expect this time premium to decrease,
thus decreasing the trading value of the MITTS Securities. In addition, the
price at which you may be able to sell your MITTS Securities prior to maturity
may be at a discount, which may be substantial, from the principal amount of
the MITTS Securities if the value of the index is below, equal to, or not
sufficiently above 189.48.

     Dividend Rates in the United States. If dividend rates on the stocks
included in the index increase, we expect the trading value of the MITTS
Securities to decrease. Conversely, if dividend rates on the stocks included
in the index decrease, we expect the value of the MITTS Securities to
increase. However, in general, rising U.S. corporate dividend rates may
increase the value of the index and, in turn, increase the trading value of
the MITTS Securities. Conversely, falling U.S. corporate dividend rates may
decrease the value of the index and, in turn, decrease the trading value of
the MITTS Securities.

     The impact of the factors specified above, excluding the value of the
index, may offset, partially or in whole, any increase in the trading value of
the MITTS Securities that is attributable to an increase in the value of the
index. For example, an increase in U.S. interest rates may cause the MITTS
Securities to trade at a discount from their initial offering price, even if
the index has appreciated significantly. In addition, the impact of a given
factor may change depending on the prevailing value of the index relative to
189.48 and on the time remaining to maturity. In general, assuming all
relevant factors are held constant, the effect on the trading value of the
MITTS Securities of a given change in interest rates, index volatility and/or
dividend rates of stocks comprising the index is expected to be less if it
occurs later in the term of the MITTS Securities than if it occurs earlier in
the term of the MITTS Securities. We expect that the effect on the trading
value of the MITTS Securities of a given appreciation of the index in excess
of value of the MITTS Securities to be greater if it occurs later in the term
of the MITTS Securities than if it occurs earlier in the term of the MITTS
Securities, assuming all other relevant factors are held constant.

Many factors affect the value of the index

     Political, economic and other developments that affect the stocks
included in the index may adversely affect the value of the index and the
value of the MITTS Securities. Since the stocks included in the index are of
companies involved in various aspects of the high technology industry segment,
factors affecting this industry segment may affect the value of the index and
therefore the trading value of the MITTS Securities.
    

Other Considerations

   
     It is suggested that you should reach an investment decision with regard
to the MITTS Securities only after carefully considering the suitability of
the MITTS Securities in light of your particular circumstances.

     You should also consider the tax consequences of investing in the MITTS
Securities and should consult your tax advisor.

     Our wholly-owned subsidiary, Merrill Lynch, Pierce, Fenner and Smith, or
MLPF&S, or its affiliates may from time to time engage in transactions
involving the stocks underlying the index for their proprietary accounts and
for other accounts under their management, which may influence the value of
the stocks and therefore the value of the MITTS Securities. MLPF&S and its
affiliates will also be the counterparties to the hedge of ML&Co.'s
obligations under the MITTS Securities. Accordingly, in some circumstances,
conflicts of interest may arise between MLPF&S's responsibilities as
calculation agent with respect to the MITTS Securities and its obligations
under its hedge and its status as a subsidiary of ML&Co. In Some
circumstances, the duties of MLPF&S as calculation agent could conflict with
the interests of MLPF&S as an affiliate of the issuer of the MITTS Securities,
Merrill Lynch & Co., Inc., and with the interests of the holders of the MITTS
Securities.


<PAGE>


                           MERRILL LYNCH & CO., INC.

     We are a holding company that, through our U.S. and non-U.S. subsidiaries
and affiliates such as Merrill Lynch, Pierce, Fenner & Smith Incorporated,
Merrill Lynch Government Securities Inc., Merrill Lynch Capital Services,
Inc., Merrill Lynch International, Merrill Lynch Capital Markets Bank Ltd.,
Merrill Lynch Asset Management L.P. and Merrill Lynch Mercury Asset
Management, provides investment, financing, advisory, insurance, and related
products on a global basis, including:

     o  securities brokerage, trading and underwriting;

     o  investment banking, strategic services, including mergers and
        acquisitions and other corporate finance advisory activities;

     o  asset management and other investment advisory and recordkeeping
        services;

     o  trading and brokerage of swaps, options, forwards, futures and other
        derivatives;

     o  securities clearance services;

     o  equity, debt and economic research;

     o  banking, trust and lending services, including mortgage lending and
        related services; and

     o  insurance sales and underwriting services.

     We provide these products and services to a wide array of clients,
including individual investors, small businesses, corporations, governments,
governmental agencies and financial institutions.

     Our principal executive office is located at World Financial Center,
North Tower, 250 Vesey Street, New York, New York 10281; our telephone number
is (212) 449-1000.

     If you want to find more information about us, please see the sections
entitled "Where You Can Find More Information" and "Incorporation of
Information We File with the SEC" in this prospectus.

     In this prospectus, "ML&Co.", "we", "us" and "our" refer specifically to
Merrill Lynch & Co., Inc., the holding company. ML&Co. is the issuer of the
MITTS Securities described in this prospectus.


<PAGE>


                      RATIO OF EARNINGS TO FIXED CHARGES

     In 1998, we acquired the outstanding shares of Midland Walwyn, Inc., in a
transaction accounted for as a pooling-of-interests. The following information
for the fiscal years 1994 through 1997 has been restated as if the two
entities had always been combined.

     The following table sets forth our historical ratios of earnings to fixed
charges for the periods indicated:

                                            Year Ended Last Friday in December
                                             1994   1995   1996   1997    1998
                                             ----   ----   ----   ----    ----
Ratio of earnings to fixed charges(a).......  1.2    1.2    1.2    1.2    1.1
- ----------
(a)  The effect of combining Midland Walwyn did not change the ratios reported
     for the fiscal years 1994 through 1997.

     For the purpose of calculating the ratio of earnings to fixed charges,
"earnings" consist of earnings from continuing operations before income taxes
and fixed charges, excluding capitalized interest and preferred security
dividend requirements. "Fixed charges" consist of interest costs, the interest
factor in rentals, amortization of debt issuance costs, preferred security
dividend requirements of subsidiaries, and capitalized interest.
    


<PAGE>


                           DESCRIPTION OF SECURITIES

   
     On August 12, 1996, ML&Co. issued $25,000,000 aggregate principal amount
of Technology MITTS Securities due August 15, 2001. The MITTS Securities were
issued as a series of senior debt securities under the 1983 Indenture which is
more fully described in this prospectus.

     The MITTS Securities will mature on August 15, 2001.

     While at maturity a beneficial owner of a MITTS Security will receive the
principal amount of that MITTS Security plus the Supplemental Redemption
Amount described below, if any, there will be no other payment of interest,
periodic or otherwise. See "- Payment at Maturity" below.

     The MITTS Securities are not subject to redemption by ML&Co. or at the
option of any beneficial owner before maturity. Upon the occurrence of an
Event of Default with respect to the MITTS Securities, beneficial owners of
the MITTS Securities may accelerate the maturity of the MITTS Securities, as
described under "- Events of Default and Acceleration" and "Other Terms -
Events of Default" in this prospectus.

     The MITTS Securities were issued in denominations of whole units.
    

Payment at Maturity

   
     At the maturity date, a beneficial owner of a MITTS Security will be
entitled to receive the principal amount of each unit plus the Supplemental
Redemption Amount, if any, all as provided below. If the Ending Index Value
does not exceed the Benchmark Index Value, a beneficial owner of a MITTS
Security will be entitled to receive only the principal amount of its MITTS
Securities.

     The "Supplemental Redemption Amount" for a MITTS Security will be
determined by the calculation agent and will equal:
    

         Principal Amount  X      Ending Index Value-Benchmark Index Value
                                  -----------------------------------------
                                           Benchmark Index Value

   
provided, however, that in no event will the Supplemental Redemption Amount be
less than zero or more than $10 per $10 principal amount of MITTS Securities.

     The "Benchmark Index Value" equals 189.48. The Benchmark Index Value was
determined on the date the MITTS Securities were priced for initial sale to
the public (the "Pricing Date") by multiplying the closing value of the CBOE
Technology Index (the "Index") on the Pricing Date by a factor equal to
112.5%.

     The "Ending Index Value" will be determined by calculation agent and will
equal the average or arithmetic mean of the closing values of the Index
determined on each of the first five Calculation Days during the Calculation
Period. If there are fewer than five Calculation Days, then the Ending Index
Value will equal the average or arithmetic mean of the closing values of the
Index on those Calculation Days. If there is only one Calculation Day, then
the Ending Index Value will equal the closing value of the Index on that
Calculation Day. If no Calculation Days occur during the Calculation Period
because of Market Disruption Events, then the Ending Index Value will equal
the closing value of the Index determined on the last scheduled Index Business
Day in the Calculation Period, regardless of the occurrence of a Market
Disruption Event on that day.

     The "Calculation Period" means the period from and including the seventh
scheduled Index Business Day before the maturity date to and including the
second scheduled Index Business Day before the maturity date.
    

     "Calculation Day" means any Index Business Day during the Calculation
Period on which a Market Disruption Event has not occurred.


<PAGE>


   
     For purposes of determining the Ending Index Value, an "Index Business
Day" is a day on which the NYSE is open for trading and trading generally
occurs in the over-the-counter market for equity securities and the Index or
any Successor Index, as defined on page 11 below, is calculated and published.

     All determinations made by the calculation agent shall be at the sole
discretion of the calculation agent and, absent a determination by the
calculation agent of a manifest error, shall be conclusive for all purposes
and binding on ML&Co. and beneficial owners of the MITTS Securities.


<PAGE>


Hypothetical Returns
    

     The following table illustrates, for a range of hypothetical Ending Index
Values,

   
     o         the total amount payable at maturity for each $10 principal
          amount of MITTS Securities,

     o         the pretax annualized rate of return to beneficial owners of
          MITTS Securities, and

     o         the pretax annualized rate of return of an investment in the
          stocks underlying the Index, which includes an assumed aggregate
          dividend yield of 0.20% per annum, as more fully described below.

<TABLE>
<CAPTION>
                                                        Total                 Pretax           Pretax Annualized
                           Percentage Change           Amount           Annualized Rate of     Rate of Return of
  Hypothetical Ending      Over the Starting         Payable at           Return on the        Stocks Underlying
      Index Value             Index Value             Maturity         MITTS Securities(1)      the Index(1)(2)
  -------------------      -----------------         ----------        -------------------     -----------------
    

<S>                             <C>                   <C>                   <C>                    <C>
          84.22                   -50%                 $ 10.00                0.00%                 -13.20%
         101.06                   -40%                 $ 10.00                0.00%                  -9.77%
         117.90                   -30%                 $ 10.00                0.00%                  -6.81%
         134.74                   -20%                 $ 10.00                0.00%                  -4.22%
         151.59                   -10%                 $ 10.00                0.00%                  -1.90%
         168.43(3)                  0%                 $ 10.00                0.00%                   0.20%
         185.27                    10%                 $ 10.00                0.00%                   2.12%
         202.12                    20%                 $ 10.67                1.30%                   3.88%
         218.96                    30%                 $ 11.56                2.92%                   5.52%
         235.80                    40%                 $ 12.44                4.41%                   7.05%
         252.65                    50%                 $ 13.33                5.82%                   8.49%
         269.49                    60%                 $ 14.22                7.15%                   9.84%
         286.33                    70%                 $ 15.11                8.41%                  11.12%
         303.17                    80%                 $ 16.00                9.61%                  12.33%
         320.02                    90%                 $ 16.89               10.74%                  13.48%
         336.86                   100%                 $ 17.78               11.83%                  14.58%
         353.70                   110%                 $ 18.67               12.86%                  15.63%
         370.55                   120%                 $ 19.56               13.85%                  16.64%
         387.39                   130%                 $ 20.00               14.33%                  17.60%
         404.23                   140%                 $ 20.00               14.33%                  18.53%
         421.08                   150%                 $ 20.00               14.33%                  19.43%
</TABLE>

- -----------
(1)  The annualized rates of return specified in the preceding table are
     calculated on a semiannual bond equivalent basis.

   
(2)  This rate of return assumes

     o    an investment of a fixed amount in the stocks underlying the Index
     with the allocation of that amount reflecting the relative weights of the
     stocks in the Index;

     o    a percentage change in the aggregate price of the stocks that equals
     the percentage change in the Index from the closing value of the Index on
     the Pricing Date to the relevant hypothetical Ending Index Value;

     o    a constant dividend yield of 0.20% per annum, paid quarterly from
     the date of initial delivery of MITTS Securities, applied to the value of
     the Index at the end of each quarter assuming the value increases or
     decreases linearly from the closing value of the Index on the Pricing
     Date to the applicable hypothetical Ending Index Value;

     o    no transaction fees or expenses;

     o    an investment term equal to the term of the MITTS Securities; and
    

     o    a final Index value equal to the Ending Index Value. The aggregate
     dividend yield of the stocks underlying the Index as of August 7, 1996
     was approximately 0.20%.


<PAGE>


(3) The closing value of the Index on the Pricing Date.

   
     The above figures are for purposes of illustration only. The actual
Supplemental Redemption Amount received by investors and the resulting pretax
annualized rate of return will depend entirely on the actual Ending Index
Value determined by the calculation agent as provided in this prospectus.
    

Adjustments to the Index; Market Disruption Events

   
     If at any time the method of calculating its Index, or its value, is
changed in any material respect, or if the Index is in any other way modified
so that the Index does not, in the opinion of the calculation agent, fairly
represent the value of the Index had the changes or modifications not been
made, then, from and after that time, the calculation agent shall, at the
close of business in New York, New York, on each date that the closing value
with respect to the Ending Index Value is to be calculated, make any
adjustments as, in the good faith judgment of the calculation agent, may be
necessary in order to arrive at a calculation of a value of a stock index
comparable to the Index as if the changes or modifications had not been made,
and calculate the closing value with reference to the Index, as adjusted.
Accordingly, if the method of calculating the Index is modified so that the
value of the Index is a fraction or a multiple of what it would have been if
it had not been modified for example, due to a split in the Index, then the
calculation agent shall adjust the Index in order to arrive at a value of the
Index as if it had not been modified for example, as if the split had not
occurred.

     "Market Disruption Event" means either of the following events, as
determined by the calculation agent:

     (a) the suspension or material limitation on trading for more than two
hours of trading in 5 or more of the securities included in the Index, or

     (b) the suspension or material limitation, in each case, for more than
two hours of trading, whether by reason of movements in price otherwise
exceeding levels permitted by the relevant exchange or otherwise, in option
contracts on the Index which are traded on the Chicago Board Options Exchange,
Inc.

     For the purposes of clause (a) above, any limitations on trading during
significant market fluctuations under New York Stock Exchange Rule 80A, or any
applicable rule or regulation enacted or promulgated by the NYSE or any other
self regulatory organization or the SEC of similar scope as determined by the
calculation agent, will be considered "material".
    

     For the purposes of this definition, a limitation on the hours in a
trading day and/or number of days of trading will not constitute a Market
Disruption Event if it results from an announced change in the regular
business hours of the relevant exchange.

Discontinuance of the Index

   
     If the CBOE discontinues publication of the Index and the CBOE or another
entity publishes a successor or substitute index that the calculation agent
determines, in its sole discretion, to be comparable to the Index (a
"Successor Index"), then, upon the calculation agent's notification of the
determination to the Trustee and ML&Co., the calculation agent will substitute
the Successor Index as calculated by the CBOE or any other entity for the
Index and calculate the Ending Index Value as described above under "Payment
at Maturity". Upon any selection by the calculation agent of a Successor
Index, ML&Co. shall cause notice to be given to holders of the MITTS
Securities.

     If the CBOE discontinues publication of the Index and a Successor Index
is not selected by the calculation agent or is no longer published on any of
the Calculation Days, the value to be substituted for the Index for any
Calculation Day used to calculate the Supplemental Redemption Amount at
maturity will be a value computed by the calculation agent for each
Calculation Day in accordance with the procedures last used to calculate the
Index before any discontinuance. If a Successor Index is selected or the
calculation agent calculates a value as a substitute for the Index as
described below, the Successor Index or value shall be substituted for the
Index for all purposes, including for purposes of determining whether a Market
Disruption Event exists.


<PAGE>


     If the CBOE discontinues publication of the Index before the period
during which the calculation agent is to calculate the Supplemental Redemption
Amount and the calculation agent determines that no Successor Index is
available at that time, then on each Business Day until the earlier to occur
of the determination of the Ending Index Value and a determination by the
calculation agent that a Successor Index is available, the calculation agent
shall determine the value that would be used in computing the Supplemental
Redemption Amount as described in the preceding paragraph as if that day were
a Calculation Day. The calculation agent will cause notice of each value to be
published not less often than once each month in The Wall Street Journal or
another newspaper of general circulation, and arrange for information with
respect to these values to be made available by telephone. Despite these
alternative arrangements, discontinuance of the publication of the Index may
adversely affect trading in the MITTS Securities.
    

Events of Default and Acceleration

   
     In case an Event of Default with respect to any MITTS Securities shall
have occurred and be continuing, the amount payable to a beneficial owner of a
Security upon any acceleration permitted by the MITTS Securities, with respect
to each $10 principal amount thereof, will be equal to the principal amount
plus an additional amount of contingent interest calculated as though the date
of early repayment were the maturity date of the MITTS Securities. See
"Description of Securities--Payment at Maturity" in this prospectus. If a
bankruptcy proceeding is commenced in respect of ML&Co., the claim of the
beneficial owner of a Security may be limited, under Section 502(b)(2) of
Title 11 of the United States Code, to the principal amount of the Security
plus an additional amount of contingent interest calculated as though the date
of the commencement of the proceeding were the maturity date of the MITTS
Securities.

     In case of default in payment at the maturity date of the MITTS
Securities, whether at their stated maturity or upon acceleration, from and
after the maturity date the MITTS Securities shall bear interest, payable upon
demand of the beneficial owners thereof, at the rate of 7.76%, per annum to
the extent that payment of any interest shall be legally enforceable, on the
unpaid amount due and payable on that date in accordance with the terms of the
MITTS Securities to the date payment of that amount has been made or duly
provided for.

Global Securities

     Description of the Global Securities

     Beneficial owners of the MITTS Securities may not receive physical
delivery of the MITTS Securities nor may they be entitled to have the MITTS
Securities registered in their names. The MITTS Securities currently are
represented by one or more fully registered global securities. Each global
security was deposited with, or on behalf of, The Depository Trust Company or
DTC (DTC, together with any successor, a "depositary"), as depositary,
registered in the name of Cede & Co. (DTC's partnership nominee). Unless and
until it is exchanged in whole or in part for MITTS Securities in definitive
form, no global security may be transferred except as a whole by the
depositary to a nominee of the depositary or by a nominee of the depositary to
the depositary or another nominee of the depositary or by the depositary or
any nominee to a successor of the depositary or a nominee of that successor.

     So long as DTC, or its nominee, is a registered owner of a global
security, DTC or its nominee, as the case may be, will be considered the sole
owner or Holder of the MITTS Securities represented by a global security for
all purposes under the 1983 Indenture. Except as provided below, the
beneficial owners of the MITTS Securities represented by a global security
will not be entitled to have the MITTS Securities represented by the global
security registered in their names, will not receive or be entitled to receive
physical delivery of the MITTS Securities in definitive form and will not be
considered the owners or Holders under the 1983 Indenture, including for
purposes of receiving any reports delivered by ML&Co. or the trustee under the
1983 Indenture. Accordingly, each person owning a beneficial interest in a
global security must rely on the procedures of DTC and, if that person is not
a participant of DTC on the procedures of the participant through which that
person owns its interest, to exercise any rights of a Holder under the 1983
Indenture. ML&Co. understands that under existing industry practices, in the
event that ML&Co. requests any action of Holders or that an owner of a
beneficial interest in a global security desires to give or take any action
which a Holder is entitled to give or take under the 1983 Indenture, DTC would
authorize the participants holding the relevant beneficial interests to give
or take any action, and the participants would authorize beneficial owners
owning through those participants to give or take action or would otherwise
act upon the instructions of beneficial owners. Conveyance of notices and
other communications by DTC to participants, by participants to indirect
participants and by participants and indirect participants to beneficial
owners will be governed by arrangements among them, subject to any statutory
or regulatory requirements as may be in effect from time to time.

<PAGE>

     DTC Procedures

     The following is based on information furnished by DTC:

     DTC is the securities depositary for the MITTS Securities. The MITTS
Securities were issued as fully registered securities registered in the name
of Cede & Co., DTC's partnership nominee. One or more fully registered global
securities were issued for the MITTS Securities in the aggregate principal
amount of the MITTS Securities, and were deposited with DTC.

     DTC is a limited-purpose trust company organized under the New York
Banking Law, a "banking organization" within the meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing corporation"
within the meaning of the New York Uniform Commercial Code, and a "clearing
agency" registered under to the provisions of Section 17A of the Securities
and Exchange Act of 1934, as amended. DTC holds securities that its
participants deposit with DTC. DTC also facilitates the settlement among
participants of securities transactions, such as transfers and pledges, in
deposited securities through electronic computerized book-entry changes in
participants' accounts, thereby eliminating the need for physical movement of
securities certificates. Direct participants of DTC include securities brokers
and dealers, banks, trust companies, clearing corporations and other
organizations. DTC is owned by a number of its direct participants and by the
NYSE, the AMEX and the National Association of Securities Dealers, Inc. Access
to the DTC's system is also available to others such as securities brokers and
dealers, banks and trust companies that clear through or maintain a custodial
relationship with a direct participant, either directly or indirectly. The
rules applicable to DTC and its participants are on file with the SEC.

     Purchases of MITTS Securities under DTC's system must be made by or
through direct participants, which will receive a credit for the MITTS
Securities on DTC's records. The ownership interest of each beneficial owner
is in turn to be recorded on the records of direct and indirect participants.
Beneficial owners will not receive written confirmation from DTC of their
purchase, but beneficial owners are expected to receive written confirmations
providing details of the transaction, as well as periodic statements of their
holdings, from the direct participants or indirect participants through which
the beneficial owner entered into the transaction. Transfers of ownership
interests in the MITTS Securities are to be accomplished by entries made on
the books of participants acting on behalf of beneficial owners.

     To facilitate subsequent transfers, all MITTS Securities deposited with
DTC are registered in the name of DTC's partnership nominee, Cede & Co. The
deposit of MITTS Securities with DTC and their registration in the name of
Cede & Co. effect no change in beneficial ownership. DTC has no knowledge of
the actual beneficial owners of the MITTS Securities; DTC's records reflect
only the identity of the direct participants to whose accounts the MITTS
Securities are credited, which may or may not be the beneficial owners. The
participants will remain responsible for keeping account of their holdings on
behalf of their customers.

     Conveyance of notices and other communications by DTC to direct
participants, by direct participants to indirect participants, and by direct
and indirect participants to beneficial owners will be governed by
arrangements among them, subject to any statutory or regulatory requirements
as may be in effect from time to time.

     Neither DTC nor Cede & Co. will consent or vote with respect to the MITTS
Securities. Under its usual procedures, DTC mails an omnibus proxy to ML&Co.
as soon as possible after the applicable record date. The omnibus proxy
assigns Cede & Co.'s consenting or voting rights to those direct participants
identified in a listing attached to the omnibus proxy to whose accounts the
MITTS Securities are credited on the record date identified in a listing
attached to the omnibus proxy.

     Principal, premium, if any, and/or interest, if any, payments on the
MITTS Securities will be made in immediately available funds to DTC. DTC's
practice is to credit direct participants' accounts on the applicable payment
date in accordance with their respective holdings shown on the depositary's
records unless DTC has reason to believe that it will not receive payment on
that date. Payments by participants to beneficial owners will be governed by
standing instructions and customary practices, as is the case with securities
held for the accounts of customers in bearer form or registered in "street
name", and will be the responsibility of the participant and not of DTC, the
trustee or ML&Co., subject to any statutory or regulatory requirements as may
be in effect from time to time. Payment of principal, premium, if any, and/or
interest, if any, to DTC is the responsibility of ML&Co. or the trustee,
disbursement of payments to direct participants is the responsibility of DTC,
and disbursement of payments to the beneficial owners is the responsibility of
direct and indirect participants.


<PAGE>


     Exchange for Certificated Securities

     If:

     o  the depositary is at any time unwilling or unable to continue as
        depositary and a successor depositary is not appointed by ML&Co.
        within 60 days,

     o  ML&Co. executes and delivers to the trustee a company order to the
        effect that the global securities shall be exchangeable, or

     o  an Event of Default under the 1983 Indenture has occurred and is
        continuing with respect to the MITTS Securities,

the global securities will be exchangeable for MITTS Securities in definitive
form of like tenor and of an equal aggregate principal amount, in
denominations of $10 and integral multiples of $10. The definitive MITTS
Securities will be registered in the name or names as the depositary shall
instruct the trustee. It is expected that instructions may be based upon
directions received by the depositary from participants with respect to
ownership of beneficial interests in the global securities.

     In addition, ML&Co. may decide to discontinue use of the system of
book-entry transfers through the depositary. In that event, MITTS Securities
in definitive form will be printed and delivered.

     The information in this section concerning DTC and DTC's system has been
obtained from sources that ML&Co. believes to be reliable, but ML&Co. takes no
responsibility for its accuracy.
    

Same-Day Settlement and Payment

   
     ML&Co. will make all payments of principal and the Supplemental
Redemption Amount, if any, in immediately available funds so long as the MITTS
Securities are maintained in book-entry form.
    

                                   THE INDEX

   
     Unless otherwise stated, all information in this prospectus on the Index
is derived from the CBOE or other publicly available sources. This information
reflects the policies of the CBOE as stated in those sources and the policies
are subject to change by the CBOE.

     The Index is a price-weighted stock index designed, developed, maintained
and operated by, and is a service mark of, the CBOE. The Index is designed to
provide an indication of the composite price performance of the common stocks
of companies involved in the U.S. high technology industry segment for
example, companies involved in the design and manufacture of high technology
components and systems. The Index consists of the stocks of 30 issuers
involved in various aspects of the high technology industry segment,
including:
    

     o    computer services,

     o    telecommunications equipment,

     o    server software and hardware,

     o    design software,

     o    PC software and hardware,


<PAGE>

     o    networking, peripherals, and

     o    semiconductors.

   
     See the table below for a list of the stocks underlying the Index as of
August 5, 1996. The CBOE selects companies for inclusion in the Index with the
aim of representing the spectrum of companies that develop components and
systems that define high technology. Relevant criteria employed by the CBOE
include
    

     o    the viability of the particular company,

     o    the extent to which that company represents the high technology
sector,

   
     o    the extent to which the market price of that company's common stock
is generally responsive to changes in the affairs of the technology sector, and
    

     the market value and trading activity of the common stock of that
company.

   
     As of August 5, 1996, the 30 companies included in the Index were divided
into five main individual groups. These individual groups comprised the
following, with the number of companies currently included in each group
indicated in parentheses: Computer Hardware (8), Computer Software (6),
Computer Systems & Services (6), Telecommunications (5) and Semiconductors
(5). The CBOE may from time to time, in its sole discretion, add companies to,
or delete companies from, the Index to achieve the objectives stated above.
The Index has a base date of January 3, 1995.

     The common stocks included in the Index are currently listed either on
the New York Stock Exchange or traded through the facilities of the National
Association of Securities Dealers Automated Quotation System and reported as
National Market System securities. As of August 5, 1996, the 30 companies
included in the Index had an aggregate market value of $445.9 billion, with an
average capitalization of $14.86 billion. The Index components ranged in size
from $906.6 million to $72.3 billion, with a median capitalization of $4.81
billion. All of the stocks are currently the subject of listed options trading
in the U.S.
    

     The average monthly trading volumes per Index component over the six
month period ending July 31, 1996 ranged from a low of 5.65 million shares to
a high of 177.6 million shares. As of August 5, 1996, the largest stock in the
Index, by value, accounted for 8.88% of the Index, while the smallest
represented 0.78% of the Index. Also on that date, the top five stocks in the
Index accounted for 32.26% of the Index by value.

     The Index satisfies the CBOE's generic maintenance standards for options
on narrow-based stock indexes.

Computation of the Index
   
     The Index is a price-weighted index for example, the weight in the Index
of a stock underlying the Index (an "Underlying Stock") is based on its price
per share rather than the total market capitalization of the issuer of that
stock, and reflects changes in the prices of the Underlying Stocks relative to
the index base date, January 3, 1995, when the Index equaled 100.00.
Specifically, the Index value is calculated by

     o  totaling the prices of a single share of each of the Underlying Stocks
        (the "Market Price Aggregate"), and

     o  dividing the Market Price Aggregate by the Index Divisor.
    
The Index Divisor was originally chosen to result in an Index value of 100 on
January 3, 1995, and is subject to periodic adjustments as set forth below.
The stock prices used to calculate the Index are those reported by a primary
market for the Underlying Stocks.

   
     The CBOE adjusts the foregoing Index Divisor to negate the effects of
changes in the price of an Underlying Stock that are determined by the CBOE to
be arbitrary and not due to market fluctuations. These adjustments may result
from stock splits, consolidations and acquisitions, the grant to shareholders
of the right to purchase other securities of the issuer for example, spinoffs
and rights issuances. The CBOE may also adjust the Index Divisor because of
the substitution of an Underlying Security. The CBOE first recalculates the
Market Price Aggregate and then determines a new Index Divisor based on the
following formula:
    

<PAGE>


            Old Divisor  X  New Market Price Aggregate     =  New Divisor
                            --------------------------
                            Old Market Price Aggregate

   
     The Index will be maintained by the CBOE. The Index is reviewed on
approximately a monthly basis by the CBOE staff. The CBOE may change the
composition of the Index at any time to reflect changes affecting the
components of the Index or the technology industry generally. If it becomes
necessary to remove a stock from the Index for example, because of a takeover
or merger, the CBOE will only add a stock having characteristics that will
permit the Index to remain within the maintenance criteria specified in CBOE
Rules and within the applicable rules of the Commission. These maintenance
criteria currently provide, among other things, that each component security
must have

     o  a market capitalization of at least $75 million, except that
        securities accounting for the bottom 10% of the weight of the Index
        may have market capitalizations of at least $50 million, and
    

     o  trading volume of at least 500,000 shares in each of the last six
        months, except that securities accounting for the bottom 10% of the
        weight of the Index may have trading volumes of at least 400,000
        shares in each of the last six months.

     Additionally, as of the first trading day of each January and July, no
single security may account for over 25% of the weight of the Index and no
five securities may account for over 50% of the weight of the Index.
Furthermore, each component security must be a reported security as defined in
Rule 11Aa3-1 of the Exchange Act. Finally, at least 90% of the weight of the
Index and 80% of the number of components in the Index must be eligible for
standardized options trading pursuant to CBOE Rules or, if currently listed
for options trading, must meet the applicable maintenance standards specified
in CBOE Rules. The CBOE will also take into account the capitalizations,
liquidity, volatility, and name recognition of any proposed replacement stock.

   
     Absent prior approval of the SEC, the CBOE will not increase to more than
40, or decrease to fewer than 20, the number of stocks in the Index.
Additionally, the CBOE will not make any change in the composition of the
Index that would cause fewer than 90% of the stocks by weight, or fewer than
80% of the total number of stocks in the index, to qualify as stocks eligible
for equity options trading under CBOE rules.

     The CBOE is under no obligation to continue the calculation and
dissemination of the Index and the method by which the Index is calculated and
the name "CBOE Technology Index" may be changed at the discretion of the CBOE.
The MITTS Securities are not sponsored, endorsed, sold or promoted by the
CBOE. No inference should be drawn from the information contained in this
prospectus that the CBOE makes any representation or warranty, implied or
express, to ML&Co., the beneficial owners of MITTS Securities or any member of
the public regarding the advisability of investing in securities generally or
in the MITTS Securities in particular or the ability of the Index to track
general stock market performance. The CBOE has no obligation to take the needs
of ML&Co. or the beneficial owners of MITTS Securities into consideration in
determining, composing or calculating the Index. The CBOE is not responsible
for, and has not participated in the determination of the timing of prices for
or quantities of, the MITTS Securities to be issued or in the determination or
calculation of the equation by which the Supplemental Redemption Amount is
determined. The CBOE has no obligation or liability in connection with the
administration, marketing or trading of the MITTS Securities.

     The use of and reference to the Index in connection with the MITTS
Securities have been consented to by the CBOE.

     Except in the limited circumstance described in this prospectus, none of
ML&Co., the Trustee, the calculation agent or the Underwriter has undertaken
independent diligence of the calculation, maintenance or publication of the
Index or any Successor Index. The CBOE disclaims all responsibility for any
inaccuracies in the data on which the Index is based and any mistakes or
errors or omissions in the calculation or dissemination of the Index and for
the manner in which the Index is used in determining the Supplemental
Redemption Amount, if any.
    

<PAGE>

   
     The value of the Index is reported on the AMEX and Bloomberg under the
symbol "TXX" and on Reuters under the symbol ".TXX".

     A potential investor should review the historical performance of the
Index. The historical performance of the Index should not be taken as an
indication of future performance, and no assurance can be given that the Index
will increase sufficiently to cause the beneficial owners of the MITTS
Securities to receive an amount in excess of the principal amount at the
maturity of the MITTS Securities.

    





                                  OTHER TERMS

   
     ML&Co. issued the MITTS Securities as a series of senior debt securities
under the 1983 Indenture, dated as of April 1, 1983, as amended and restated,
between ML&Co. and The Chase Manhattan Bank, as trustee. A copy of the 1983
Indenture is filed as an exhibit to the registration statement relating to the
MITTS Securities of which this prospectus is a part. The following summaries
of the material provisions of the 1983 Indenture are not complete and are
subject to, and qualified in their entirety by reference to, all provisions of
the 1983 Indenture, including the definitions of terms in the 1983 Indenture.

     ML&Co. may issue series of senior debt securities from time to time under
the 1983 Indenture, without limitation as to aggregate principal amount, in
one or more series and upon terms as ML&Co. may establish under the provisions
of the 1983 Indenture.

     The 1983 Indenture and the MITTS Securities are governed by and construed
in accordance with the laws of the State of New York.

     ML&Co. may issue senior debt securities with terms different from those
of senior debt securities previously issued, and issue additional senior debt
securities of a previously issued series of senior debt securities.

     The senior debt securities are unsecured and rank equally with all other
unsecured and unsubordinated indebtedness of ML&Co. However, because ML&Co. is
a holding company, the rights of ML&Co. and its creditors, including the
holders of senior debt securities, to participate in any distribution of the
assets of any subsidiary upon its liquidation or reorganization or otherwise
are necessarily subject to the prior claims of creditors of the subsidiary,
except to the extent that a bankruptcy court may recognize claims of ML&Co.
itself as a creditor of the subsidiary.  In addition, dividends, loans and
advances from certain subsidiaries, including MLPF&S, to ML&Co. are restricted
by net capital requirements under the Exchange Act, and under rules of
exchanges and other regulatory bodies.
    

Limitations Upon Liens

   
     ML&Co. may not, and may not permit any majority-owned subsidiary to,
create, assume, incur or permit to exist any indebtedness for borrowed money
secured by a pledge, lien or other encumbrance, other than those liens
specifically permitted by the 1983 Indenture, on the Voting Stock owned
directly or indirectly by ML&Co. of any majority-owned subsidiary, other than
a majority-owned subsidiary which, at the time of the incurrence of the
secured indebtedness, has a net worth of less than $3,000,000, unless the
outstanding senior debt securities are secured equally and ratably with the
secured indebtedness.

     "Voting Stock" is defined in the 1983 Indenture as the stock of the class
or classes having general voting power under ordinary circumstances to elect
at least a majority of the board of directors, managers or trustees of a
corporation provided that, for the purposes of the 1983 Indenture, stock that
carries only the right to vote conditionally on the occurrence of an event is
not considered voting stock whether or not the event has happened.
    


<PAGE>


Limitation on Disposition of Voting Stock of, and Merger and Sale of Assets
by, MLPF&S

   
     ML&Co. may not sell, transfer or otherwise dispose of any Voting Stock of
MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of its
Voting Stock, unless, after giving effect to any such transaction, LPF&S
remains a Controlled Subsidiary.

     "Controlled Subsidiary" is defined in the 1983 Indenture to mean a
corporation more than 80% of the outstanding shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

     In addition, ML&Co. may not permit MLPF&S to:

     o  merge or consolidate, unless the surviving company is a Controlled
        Subsidiary, or
    

     o  convey or transfer its properties and assets substantially as an
        entirety, except to one or more Controlled Subsidiaries.

Merger and Consolidation

   
     ML&Co. may consolidate or merge with or into any other corporation and
ML&Co. may sell, lease or convey all or substantially all of its assets to any
corporation, provided that:

     o  the resulting corporation, if other than ML&Co., is a corporation
        organized and existing under the laws of the United States of America
        or any U.S. state and assumes all of ML&Co.'s obligations to:

        o  pay any amounts due and payable or deliverable with respect to all
           the senior debt securities; and

        o  perform and observe all of ML&Co.'s obligations under the 1983
           Indenture, and

     o  ML&Co. or the successor corporation, as the case may be, is not,
        immediately after any consolidation or merger, in default under the
        1983 Indenture.
    

Modification and Waiver

   
     ML&Co. and the trustee may modify and amend the 1983 Indenture with the
consent of holders of at least 66 2/3% in principal amount of each outstanding
series of senior debt securities affected. However, without the consent of
each holder of any outstanding senior debt security affected, no amendment or
modification to the 1983 Indenture may:

     o  change the stated maturity date of the principal of, or any
        installment of interest or Additional Amounts payable on, any senior
        debt security or any premium payable on redemption, or change the
        redemption price;

     o  reduce the principal amount of, or the interest or Additional Amounts
        payable on, any senior debt security or reduce the amount of principal
        which could be declared due and payable before the stated maturity
        date;

     o  change the place or currency of any payment of principal or any
        premium, interest or Additional Amounts payable on any senior debt
        security;


<PAGE>


     o  impair the right to institute suit for the enforcement of any payment
        on or with respect to any senior debt security;

     o  reduce the percentage in principal amount of the outstanding senior
        debt securities of any series, the consent of whose holders is
        required to modify or amend the 1983 Indenture; or

     o  modify the foregoing requirements or reduce the percentage of
        outstanding senior debt securities necessary to waive any past default
        to less than a majority.

     No modification or amendment of ML&Co.'s Subordinated Indenture or any
Subsequent Indenture for subordinated debt securities may adversely affect the
rights of any holder of ML&Co.'s senior indebtedness without the consent of
each holder affected. The holders of at least a majority in principal amount
of outstanding senior debt securities of any series may, with respect to that
series, waive past defaults under the 1983 Indenture and waive compliance by
ML&Co. with provisions in the 1983 Indenture, except as described under
"--Events of Default".

Events of Default

     Each of the following will be Events of Default with respect to senior
debt securities of any series:

     o  default in the payment of any interest or Additional Amounts payable
        when due and continuing for 30 days;

     o  default in the payment of any principal or premium when due;

     o  default in the deposit of any sinking fund payment, when due;

     o  default in the performance of any other obligation of ML&Co. contained
        in the 1983 Indenture for the benefit of that series or in the senior
        debt securities of that series, continuing for 60 days after written
        notice as provided in the 1983 Indenture;

     o  specified events in bankruptcy, insolvency or reorganization of
        ML&Co.; and

     o  any other Event of Default provided with respect to senior debt
        securities of that series which are not inconsistent with the 1983
        Indenture.

     If an Event of Default occurs and is continuing for any series of senior
debt securities, other than as a result of the bankruptcy, insolvency or
reorganization of ML&Co., the trustee or the holders of at least 25% in
principal amount of the outstanding senior debt securities of that series may
declare all amounts, or any lesser amount provided for in the senior debt
securities, due and payable or deliverable immediately. At any time after a
declaration of acceleration has been made with respect to senior debt
securities of any series but before the trustee has obtained a judgment or
decree for payment of money, the holders of a majority in principal amount of
the outstanding senior debt securities of that series may rescind any
declaration of acceleration and its consequences, if all payments due, other
than those due as a result of acceleration, have been made and all Events of
Default have been remedied or waived.

     The holders of a majority in principal amount or aggregate issue price of
the outstanding senior debt securities of that series may waive any Event of
Default with respect to that series, except a default:

     o  in the payment of any amounts due and payable or deliverable under the
        debt securities of that series; or

     o  in respect of an obligation or provision of the 1983 Indenture which
        cannot be modified under the terms of that Indenture without the
        consent of each holder of each outstanding security of each series of
        senior debt securities affected.


<PAGE>


     The holders of a majority in principal amount of the outstanding senior
debt securities of a series may direct the time, method and place of
conducting any proceeding for any remedy available to the trustee or
exercising any trust or power conferred on the trustee with respect to those
senior debt securities, provided that any direction shall not be in conflict
with any rule of law or the 1983 Indenture. Before proceeding to exercise any
right or power under the 1983 Indenture at the direction of the holders, the
trustee shall be entitled to receive from the holders reasonable security or
indemnification against the costs, expenses and liabilities which might be
incurred by it in complying with any direction.

     The MITTS Securities and other series of senior debt securities issued
under the 1983 Indenture do not have the benefit of any cross-default
provisions with other indebtedness of ML&Co.

     ML&Co. is required to furnish to the trustee annually a statement as to
the fulfillment by ML&Co. of all of its obligations under the 1983 Indenture.


<PAGE>


                      WHERE YOU CAN FIND MORE INFORMATION

     We file reports, proxy statements and other information with the SEC. Our
SEC filings are also available over the Internet at the SEC's web site at
http://www.sec.gov. You may also read and copy any document we file by
visiting the SEC's public reference rooms in Washington, D.C., New York, New
York, and Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further
information about the public reference rooms. You may also inspect our SEC
reports and other information at the New York Stock Exchange, Inc., 20 Broad
Street, New York, New York 10005.

     We have filed a registration statement on Form S-3 with the SEC covering
the MITTS Securities and other securities. For further information on ML&Co.
and the MITTS Securities, you should refer to our registration statement and
its exhibits. This prospectus summarizes material provisions of contracts and
other documents that we refer you to. Because the prospectus may not contain
all the information that you may find important, you should review the full
text of these documents. We have included copies of these documents as
exhibits to our registration statement of which this prospectus is a part.

               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

     The SEC allows us to incorporate by reference the information we file
with them, which means:

     o  incorporated documents are considered part of the prospectus;

     o  we can disclose important information to you by referring you to those
        documents; and

     o  information that we file with the SEC will automatically update and
        supersede this incorporated information.

     We incorporate by reference the documents listed below which were filed
with the SEC under the Exchange Act:

     o  annual report on Form 10-K for the year ended December 25, 1998; and

     o  current reports on Form 8-K dated December 28, 1998, January 19, 1999,
        February 17, 1999, February 18, 1999, February 22, 1999, February 23,
        1999 and March 26, 1999.

     We also incorporate by reference each of the following documents that we
will file with the SEC after the date of this prospectus until this offering
is completed or after the date of this initial registration statement and
before the effectiveness of the registration statement:

     o  reports filed under Sections 13(a) and (c) of the Exchange Act;

     o  definitive proxy or information statements filed under Section 14 of
        the Exchange Act in connection with any subsequent stockholders'
        meeting; and

     o  any reports filed under Section 15(d) of the Exchange Act.

     You should rely only on information contained or incorporated by
reference in this prospectus. We have not, and MLPF&S has not, authorized any
other person to provide you with different information. If anyone provides you
with different or inconsistent information, you should not rely on it. We are
not, and MLPF&S is not, making an offer to sell these securities in any
jurisdiction where the offer or sale is not permitted.

     You should assume that the information appearing in this prospectus is
accurate as of the date of this prospectus only. Our business, financial
condition and results of operations may have changed since that date.


<PAGE>


     You may request a copy of any filings referred to above (excluding
exhibits), at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan, Jr., Corporate Secretary's Office, Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.

                             PLAN OF DISTRIBUTION

     This prospectus has been prepared in connection with secondary sales of
the MITTS Securities and is to be used by MLPF&S when making offers and sales
related to market-making transactions in the MITTS Securities.

     MLPF&S may act as principal or agent in these market-making transactions.

     The MITTS Securities may be offered on the CBOE or NYSE or off the
exchanges in negotiated transactions or otherwise.

     The distribution of the MITTS Securities will conform to the requirements
set forth in the applicable sections of Rule 2720 of the Conduct Rules of the
NASD.
    

                                    EXPERTS

   
     The consolidated financial statements and the related financial statement
schedule incorporated in this prospectus by reference from the Annual Report on
Form 10-K of Merrill Lynch & Co., Inc. and subsidiaries have been audited by
Deloitte & Touche LLP, independent auditors, as stated in their reports (which
express an unqualified opinion and which report on the consolidated financial
statements includes an explanatory paragraph for the change in accounting method
for certain internal-use software development costs), which are incorporated
herein by reference, and have been so incorporated in reliance upon the reports
of such firm given upon their authority as experts in accounting and auditing.
    

<PAGE>
   
The information in this prospectus is not complete and may be changed.  We may
not sell these securities until the registration statement filed with the
Securities and Exchange Commission is effective.  This prospectus is not an
offer to sell these securities and it is not soliciting an offer to buy these
securities in any state where the offer or sale is not permitted.
    

                             Subject to Completion

   
                  Preliminary Prospectus dated March 29, 1999
    

P R O S P E C T U S
- -------------------

                           Merrill Lynch & Co., Inc.
         S&P 500 Market Index Target-Term Securities(R) due May 10, 2001
   
                             "MITTS(R) Securities"
                             $10 principal amount




     This prospectus is to be used by Merrill Lynch & Co., Merrill Lynch,
Pierce, Fenner & Smith Incorporated, our wholly-owned subsidiary, when making
offers and sales related to market-making transactions in the MITTS
Securities.

<TABLE>
<S>                                           <C>
The MITTS Securities:                          Payment at Maturity:
o 100% principal protection at maturity        o On the maturity date, for each unit of the
o No payments before the maturity date           MITTS Securities you own, we will pay you
o Senior unsecured debt securities of Merrill    an amount equal to the sum of the principal
  Lynch & Co., Inc.                              amount of each unit and an additional
o Linked to the value of the S&P 500 Index       amount based on the percentage increase, if any,
o The MITTS Securities are listed on the New     in the value of the index, adjusted as
  York Stock Exchange under the symbol           described in this prospectus.
  "MIX".                                       o You will receive no less than the principal
                                                 amount of your MITTS Securities
</TABLE>




               Investing in the MITTS Securities involves risks.
                    See "Risk Factors" beginning on page 3.
    


     Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if
this prospectus is truthful or complete. Any representation to the contrary is
a criminal offense.

   
     The sale price of the MITTS Securities will be the prevailing market
price at the time of sale.




                               ----------------
    
                              Merrill Lynch & Co.
   
                               ----------------

                    The date of this prospectus is , 1999.

- ---------------------
     "MITTS" and "Market Index Target-Term Securities" are registered service
     marks owned by Merrill Lynch & Co., Inc.

     "Standard & Poor's(R)", "Standard & Poor's 500", "S&P 500(R)", "S&P(R)"
     and "500", are trademarks of The McGraw-Hill Companies, Inc. and have
     been licensed for use by Merrill Lynch Capital Services, Inc. and ML&Co.
     is an authorized sublicensee.


<PAGE>


                               Table of Contents

                                                                          Page

RISK FACTORS.................................................................4

MERRILL LYNCH & CO., INC.....................................................6

RATIO OF EARNINGS TO FIXED CHARGES...........................................7

DESCRIPTION OF THE MITTS SECURITIES..........................................8

THE INDEX...................................................................15

OTHER TERMS.................................................................17

PROJECTED PAYMENT SCHEDULE..................................................22

WHERE YOU CAN FIND MORE INFORMATION.........................................23
    

INCORPORATION OF INFORMATION WE FILE WITH THE SEC...........................23

   
PLAN OF DISTRIBUTION........................................................24

EXPERTS.....................................................................25


<PAGE>


                                 RISK FACTORS

     Your investment in MITTS Securities will involve risks. You should
carefully consider the following discussion of risks before deciding whether
an investment in the MITTS Securities is suitable for you.

You may not earn a return on your investment

     You should be aware that at maturity we will pay you no more than $10 for
each unit of the MITTS Securities you own if the average value of the index
over five trading days shortly before the maturity date is less than 638.26,
the value of the index on the date the MITTS Securities were priced. This will
be true even if at some time during the life of the MITTS Securities, the
value of the index, as adjusted, was higher than 638.26 but later falls below
638.26.

Your yield may be lower than the yield on a standard debt security of
comparable maturity

     The amount we pay you at maturity may be less than the return you could
earn on other investments. Your yield may be less than the yield you would
earn if you bought a standard senior non-callable debt security of Merrill
Lynch & Co., Inc. with the same maturity date. Your investment may not reflect
the full opportunity cost to you when you take into account factors that
affect the time value of money.

Your return will not reflect the return of owning the stocks included in the
index

     Your return will not reflect the return you would realize if you actually
owned the stock underlying the index and received the dividends paid on those
stocks because the index does not reflect the payment of dividends on the
stocks underlying it.

Amounts payable on the MITTS Securities may be limited by state law

     New York State laws govern the indenture under which the MITTS Securities
were issued. New York has usury laws that limit the amount of interest that
can be charged and paid on loans, which includes debt securities like the
MITTS Securities. Under present New York law, the maximum rate of interest is
25% per annum on a simple interest basis. This limit may not apply to debt
securities in which $2,500,000 or more has been invested.
    

     While we believe that New York law would be given effect by a state or
Federal court sitting outside of New York, many other states also have laws
that regulate the amount of interest that may be charged to and paid by a
borrower. We will promise, for your benefit, to the extent permitted by law,
not to voluntarily claim the benefits of any laws concerning usurious rates of
interest.

   
There are many factors affecting the trading value of the MITTS Securities

     We expect that the creditworthiness of ML&Co. and a number of other
factors will affect the trading value of the MITTS Securities in the secondary
market. We expect that the trading value of the MITTS Securities will depend
substantially on the extent of the appreciation, if any, of the index over
638.26. If, however, you sell your MITTS Securities prior to the maturity date
at a time when the index exceeds 638.26, the price you receive may be at a
substantial discount from the amount expected to be payable if the excess of
the index over 638.26 were to prevail until maturity of the MITTS Securities
because of the possible fluctuation of the index between the time of the sale
and the time at which the MITTS Securities mature. Furthermore, the price at
which you will be able to sell MITTS Securities prior to maturity may be at a
discount, which could be substantial, from the principal amount, if, at that
time, the index is below, equal to, or not sufficiently above 638.26. A
discount could also result from rising interest rates.

     In addition to the value of the index, a number of interrelated factors,
including the creditworthiness of ML&Co. and those factors listed below may
affect the trading value of the MITTS Securities. The relationship among these
factors is complex, including how these factors affect the relative value of
the MITTS Securities. Accordingly, you should be aware that factors other than
the level of the index are likely to affect the MITTS Securities' trading
value. The expected effect on the trading value of the MITTS Securities of
each of the factors listed below, assuming in each case that all other factors
are held constant, is as follows:


<PAGE>


     Interest rates. Because we will pay, at a minimum, the principal amount
     per unit of MITTS Securities at maturity, we expect the trading value of
     the MITTS Securities will likely be affected by changes in interest
     rates. In general, we anticipate that if U.S. interest rates increase,
     the trading value of the MITTS Securities will decrease. If U.S. interest
     rates decrease, we expect the trading value of the MITTS Securities to
     increase. Interest rates may also affect the U.S. economy, and, in turn,
     the value of the index. Rising interest rates may lower the value of the
     index and, thus, the MITTS Securities. Falling interest rates may
     increase the value of the index and, thus, may increase the value of the
     MITTS Securities.

     Volatility of the index. If the volatility of the index increases, we
     expect that the trading value of the MITTS Securities will increase. If
     the volatility of the index decreases, we expect that the trading value
     of the MITTS Securities will decrease.

     Time remaining to maturity. We believe that before maturity the MITTS
     Securities may trade at a value above that which you may expect based
     upon the level of interest rates and the index. This difference will
     reflect a "time premium" due to expectations concerning the value of the
     index during the period prior to maturity of the MITTS Securities. As the
     time remaining to maturity of the MITTS Securities decreases, however, we
     expect this time premium to decrease, thus decreasing the trading value
     of the MITTS Securities. In addition, the price at which you may be able
     to sell MITTS Securities prior to maturity may be at a discount, which
     may be substantial, from the principal amount of the MITTS Securities if
     the value of the index is below, equal to, or not sufficiently above
     638.26.

     Dividend rates in the United States. If dividend rates on the stocks
     included in the index increase, we expect the value of the MITTS
     Securities to decrease. Conversely, if dividend rates on the stocks
     included in the index decrease, we expect the value of the MITTS
     Securities to increase. However, in general, rising U.S. corporate
     dividend rates may increase the value of the index and, in turn, increase
     the value of the MITTS Securities. Conversely, falling U.S. dividend
     rates may decrease the value of the index and, in turn, decrease the
     value of the MITTS Securities.

     We want you to understand that the impact of the factors specified above,
excluding the value of the index, may offset, partially or in whole, any
increase in the trading value of the MITTS Securities that is attributable to
an increase in the value of the index. For example, an increase in U.S.
interest rates may cause the MITTS Securities to trade at a discount from
their initial offering price, even if the index has appreciated significantly.

     In general, assuming all relevant factors are held constant, the effect
on the trading value of the MITTS Securities of a given change in interest
rates, index volatility and/or dividend rates of stocks comprising the index
is expected to be less if it occurs later in the term of the MITTS Securities
than if it occurs earlier in the term of the MITTS Securities. We expect that
the effect on the trading value of the MITTS Securities of a given
appreciation of the index in excess of 638.26 to be greater if it occurs later
in the term of the MITTS Securities than if it occurs earlier in the term of
the MITTS Securities, assuming all other relevant factors are held constant.
    

The Index

   
     Political, economic and other developments that affect the stocks
included in the index may adversely affect the value of the index and
therefore the value of the MITTS Securities.
    

Other Considerations

   
     It is suggested that you should reach an investment decision regarding
the MITTS Securities only after carefully considering the suitability of the
MITTS Securities in light of your particular circumstances.

     You should also consider the tax consequences of investing in the MITTS
Securities and should consult your tax advisor.

     Our wholly-owned subsidiary, Merrill Lynch, Pierce, Fenner & Smith or
MLPF&S, or its affiliates may from time to time engage in transactions
involving the stocks underlying the index for their proprietary accounts and
for other accounts under their management, which may influence the value of
these stocks and therefore the value of the MITTS Securities. MLPF&S and its
affiliates will also be the counterparties to the hedge of ML&Co.'s
obligations under the MITTS Securities. Accordingly, under some circumstances,
conflicts of interest may arise between MLPF&S's responsibilities as
calculation agent with respect to the MITTS Securities and its obligations
under its hedge and its status as a subsidiary of ML&Co. Under some
circumstances, the duties of MLPF&S as calculation agent could conflict with
the interests of MLPF&S as an affiliate of the issuer of the MITTS Securities,
Merrill Lynch & Co., Inc., and with the interests of the holders of the MITTS
Securities.


<PAGE>


                           MERRILL LYNCH & CO., INC.

     We are a holding company that, through our U.S. and non-U.S. subsidiaries
and affiliates such as Merrill Lynch, Pierce, Fenner & Smith Incorporated,
Merrill Lynch Government Securities Inc., Merrill Lynch Capital Services,
Inc., Merrill Lynch International, Merrill Lynch Capital Markets Bank Ltd.,
Merrill Lynch Asset Management L.P. and Merrill Lynch Mercury Asset
Management, provides investment, financing, advisory, insurance, and related
products on a global basis, including:

     o  securities brokerage, trading and underwriting;

     o  investment banking, strategic services, including mergers and
        acquisitions and other corporate finance advisory activities;

     o  asset management and other investment advisory and recordkeeping
        services;

     o  trading and brokerage of swaps, options, forwards, futures and other
        derivatives;

     o  securities clearance services;

     o  equity, debt and economic research;

     o  banking, trust and lending services, including mortgage lending and
        related services; and

     o  insurance sales and underwriting services.

     We provide these products and services to a wide array of clients,
including individual investors, small businesses, corporations, governments,
governmental agencies and financial institutions.

     Our principal executive office is located at World Financial Center,
North Tower, 250 Vesey Street, New York, New York 10281; our telephone number
is (212) 449-1000.

     If you want to find more information about us, please see the sections
entitled "Where You Can Find More Information" and "Incorporation of
Information We File with the SEC" in this prospectus.

     In this prospectus, "ML&Co.", "we", "us" and "our" refer specifically to
Merrill Lynch & Co., Inc., the holding company. ML&Co. is the issuer of the
MITTS Securities described in this prospectus.


<PAGE>


                      RATIO OF EARNINGS TO FIXED CHARGES

     In 1998, we acquired the outstanding shares of Midland Walwyn, Inc., in a
transaction accounted for as a pooling-of-interests. The following information
for the fiscal years 1994 through 1997 has been restated as if the two
entities had always been combined.

     The following table sets forth our historical ratios of earnings to fixed
charges for the periods indicated:



                                          Year Ended Last Friday in December
                                           1994   1995   1996   1997   1998
                                           --------------------------------
Ratio of earnings to fixed charges(a).....  1.2    1.2    1.2    1.2   1.1
- ----------
(a)  The effect of combining Midland Walwyn did not change the ratios reported
     for the fiscal years 1994 through 1997.

     For the purpose of calculating the ratio of earnings to fixed charges,
"earnings" consist of earnings from continuing operations before income taxes
and fixed charges, excluding capitalized interest and preferred security
dividend requirements. "Fixed charges" consist of interest costs, the interest
factor in rentals, amortization of debt issuance costs, preferred security
dividend requirements of subsidiaries, and capitalized interest.


<PAGE>


                      DESCRIPTION OF THE MITTS SECURITIES

     On May 13, 1996, ML&Co. issued $110,000,000 aggregate principal amount of
S&P 500 MITTS Securities due May 10, 2001. The MITTS Securities were issued as
a series of senior debt securities under the 1983 Indenture which is more
fully described in this prospectus.

     The MITTS Securities will mature on May 10, 2001.

     While at maturity a beneficial owner of a MITTS Security will receive the
principal amount of the MITTS Security plus the Supplemental Redemption Amount
described below, if any, there will be no other payment of interest, periodic
or otherwise. See "- Payment at Maturity" below.

     The MITTS Securities are not subject to redemption by ML&Co. or at the
option of any beneficial owner before maturity. Upon the occurrence of an
Event of Default with respect to the MITTS Securities, beneficial owners of
the MITTS Securities may accelerate the maturity of the MITTS Securities, as
described under "- Events of Default and Acceleration" and "Other Terms -
Events of Default" in this prospectus.

     The MITTS Securities were issued in denominations of whole units.
    

Payment at Maturity

   
     At the maturity date, a beneficial owner of a MITTS Security will be
entitled to receive the principal amount of each unit plus the Supplemental
Redemption Amount, if any, all as provided below. If the Ending Index Value
does not exceed the Starting Index Value, a beneficial owner of a MITTS
Security will be entitled to receive only the principal amount of its MITTS
Securities.

     The "Supplemental Redemption Amount" for a MITTS Security will be
determined by the calculation agent and will equal:
    

Principal Amount X Ending Index Value--Starting Index Value X Participation Rate
                   ----------------------------------------
                                  Starting Index Value

provided, however, that in no event will the Supplemental Redemption Amount be
less than zero.

   
     The "Starting Index Value" equals 638.26, which was the closing value of
the S&P 500 Index (the "Index") on the date the MITTS Securities were priced
by ML&Co. for initial sale to the public (the "Pricing Date").

     The "Participation Rate" equals 110%.

     The "Ending Index Value" will be determined by the calculation agent and
will equal the average or arithmetic mean of the closing values of the Index
determined on each of the first five Calculation Days during the Calculation
Period. If there are fewer than five Calculation Days, then the Ending Index
Value will equal the average or arithmetic mean of the closing values of the
Index on these Calculation Days. If there is only one Calculation Day, then
the Ending Index Value will equal the closing value of the Index on that
Calculation Day. If no Calculation Days occur during the Calculation Period
because of Market Disruption Events, then the Ending Index Value will equal
the closing value of the Index determined on the last scheduled Index Business
Day in the Calculation Period, regardless of the occurrences of a Market
Disruption Event on that day.
    

     The "Calculation Period" means the period from and including the seventh
scheduled Index Business Day prior to the maturity date to and including the
second scheduled Index Business Day prior to the maturity date.

     "Calculation Day" means any Index Business Day during the Calculation
Period on which a Market Disruption Event has not occurred.


<PAGE>


   
     For purposes of determining the Ending Index Value, an "Index Business
Day" is a day on which the New York Stock Exchange and the American Stock
Exchange are open for trading and the Index or any Successor Index, as defined
below, is calculated and published.

     All determinations made by the calculation agent shall be at the sole
discretion of the calculation agent and, absent a determination by the
calculation agent of a manifest error, shall be conclusive for all purpose and
binding on ML&Co. and beneficial owners of the MITTS Securities.


<PAGE>


Hypothetical Returns
    

     The following table illustrates, for a range of hypothetical Ending Index
Values,

   
     o  the total amount payable at maturity for each $10 principal amount of
        MITTS Securities,

     o  the total rate of return to beneficial owners of the MITTS Securities,

     o  the pretax annualized rate of return to beneficial owners of MITTS
        Securities, and

     o  the pretax annualized rate of return of an investment in the stocks
        underlying the Index, which includes an assumed aggregate dividend
        yield of 2.20% per annum, as more fully described below.

<TABLE>
<CAPTION>
                                               Total Amount             Pretax       Pretax Annualized
                        Percentage Change   Payable at Maturity     Annualized Rate  Rate of Return of
 Hypothetical Ending    Over the Starting    Per $10 Principal       of Return on    Stocks Underlying
   Index Value             Index Value     Amount of Securities    the Securities(1)  the Index(1)(2)
 ------------------     -----------------  --------------------    ----------------- -----------------
    
<S>                          <C>                  <C>                   <C>          <C>
       319.13                 -50%                 $10.00                 0.00%       -11.41%
       382.96                 -40%                 $10.00                 0.00%        -7.89%
       446.78                 -30%                 $10.00                 0.00%        -4.89%
       510.61                 -20%                 $10.00                 0.00%        -2.25%
       574.43                 -10%                 $10.00                 0.00%         0.09%
       638.26(3)                0%                 $10.00                 0.00%         2.21%
       702.09                  10%                 $11.10                 2.10%         4.15%
       765.91                  20%                 $12.20                 4.02%         5.94%
       829.74                  30%                 $13.30                 5.80%         7.61%
       893.56                  40%                 $14.40                 7.44%         9.16%
       957.39                  50%                 $15.50                 8.97%        10.62%
     1,021.22                  60%                 $16.60                10.42%        12.00%
     1,085.04                  70%                 $17.70                11.77%        13.30%
     1,148.87                  80%                 $18.80                13.05%        14.54%
     1,212.69                  90%                 $19.90                14.27%        15.72%
     1,276.52                 100%                 $21.00                15.43%        16.84%
     1,340.35                 110%                 $22.10                16.53%        17.92%
     1,404.17                 120%                 $23.20                17.59%        18.95%
</TABLE>
- -------------------
(1)  The annualized rates of return specified in the preceding table are
     calculated on a semiannual bond equivalent basis.

(2)  This rate of return assumes

   
     o  an investment of a fixed amount in the stocks underlying the Index
        with the allocation of the amount reflecting the current relative
        weights of the stocks in the Index;
     o  a percentage change in the aggregate price of the stocks that equals
        the percentage change in the Index from the Starting Index Value to
        the relevant hypothetical Ending Index Value;
     o  a constant dividend yield of 2.20% per annum, paid quarterly from the
        date of initial delivery of MITTS Securities, applied to the value of
        the Index at the end of each quarter assuming the value increases or
        decreases linearly from the Starting Index Value to the applicable
        hypothetical Ending Index Value;
     o  no transaction fees or expenses;
     o  a term for the MITTS Securities from May 13, 1996 to May 10, 2001; and
     o  a final Index value equal to the Ending Index Value. The aggregate
        dividend yield of the stocks underlying the Index as of May 7, 1996
        was approximately 2.20%.
    

(3)  The Starting Index Value.

   
     The above figures are for purposes of illustration only. The actual
Supplemental Redemption Amount received by investors and the resulting total
and pretax annualized rate of return will depend entirely on the actual Ending
Index Value determined by the calculation agent as provided in this
prospectus.
    


<PAGE>


Adjustments to the Index; Market Disruption Events

   
     If at any time the method of calculating the Index, or its value, is
changed in any material respect, or if the Index is in any other way modified
so that the Index does not, in the opinion of the calculation agent, fairly
represent the value of the Index had these changes or modifications not been
made, then, from and after that time, the calculation agent shall, at the
close of business in New York, New York, on each date that the closing value
with respect to the Ending Index Value is to be calculated, make any
adjustments as, in the good faith judgment of the calculation agent, may be
necessary in order to arrive at a calculation of a value of a stock index
comparable to the Index as if the changes or modifications had not been made,
and calculate the closing value with reference to the Index, as adjusted.
Accordingly, if the method of calculating the Index is modified so that the
value of the Index is a fraction or a multiple of what it would have been if
it had not been modified, for example, due to a split in the Index, then the
calculation agent shall adjust the Index in order to arrive at a value of the
Index as if it had not been modified, for example, as if the split had not
occurred.

     "Market Disruption Event" means either of the following events, as
determined by the calculation agent:

     (a) the suspension or material limitation in trading for more than two
hours of trading in 100 or more of the securities included in the S&P 500
Index, or

     (b) the suspension or material limitation on trading for more than two
hours of trading, whether by reason of movements in price otherwise exceeding
levels permitted by the relevant exchange or otherwise, in

         (1)  futures contracts related to the Index which are traded on the
              Chicago Mercantile Exchange or

         (2)  option contracts related to the Index which are traded on the
              Chicago Board Options Exchange, Inc.

     A limitation on the hours in a trading day and/or number of days of
trading will not constitute a Market Disruption Event if it results from an
announced change in the regular business hours of the relevant exchange.

     For the purposes of clause (a) above, any limitations on trading during
significant market fluctuations under New York Stock Exchange Rule 80A, or any
applicable rule or regulation enacted or promulgated by the NYSE or any other
self regulatory organization or the SEC of similar scope as determined by the
calculation agent, will be considered "material".
    

Discontinuance of the Index

   
     If S&P discontinues publication of the Index and S&P or another entity
publishes a successor or substitute index that the calculation agent
determines, in its sole discretion, to be comparable to the Index (any
successor or substitute index is referred to as a "Successor Index"), then,
upon the calculation agent's notification of the determination to the trustee
and ML&Co., the calculation agent will substitute the Successor Index as
calculated by S&P or any other entity for the Index.  Upon any selection by
the calculation agent of a Successor Index, ML&Co. shall cause notice to be
given to holders of the MITTS Securities.

     If S&P discontinues publication of the Index and a Successor Index is not
selected by the calculation agent or is no longer published on any of the
Calculation Days, the value to be substituted for the Index for any
Calculation Day used to calculate the Supplemental Redemption Amount at
maturity will be a value computed by the calculation agent for each
Calculation Day in accordance with the procedures last used to calculate the
Index before the discontinuance. If a Successor Index is selected or the
calculation agent calculates a value as a substitute for the Index as
described below, the Successor Index or value shall be substituted for the
Index for all purposes, including for purposes of determining whether a Market
Disruption Event exists.


<PAGE>


     If S&P discontinues publication of the Index before the period during
which the Supplemental Redemption Amount is to be determined and the
calculation agent determines that no Successor Index is available at that
time, then on each Business Day until the earlier to occur of:
    

          o   the determination of the Ending Index Value and

   
          o   a determination by the calculation agent that a Successor Index
              is available,

the calculation agent shall determine the value that would be used in
computing the Supplemental Redemption Amount as described in the preceding
paragraph as if that day were a Calculation Day. The calculation agent will
cause notice of each value to be published not less often than once each month
in The Wall Street Journal, or another newspaper of general circulation, and
arrange for information with respect to the values to be made available by
telephone.

     Despite these alternative arrangements, discontinuance of the publication
of the Index may adversely affect trading in the MITTS Securities.
    

Events of Default and Acceleration

   
     In case an Event of Default with respect to any MITTS Securities has
occurred and is continuing, the amount payable to a beneficial owner of a
MITTS Security upon any acceleration permitted by the MITTS Securities, with
respect to each $10 principal amount per unit, will be equal to the initial
issue price ($10) per unit and an additional amount of contingent interest
calculated as though the date of early repayment were the stated maturity date
of the MITTS Securities. See "- Payment at Maturity" in this prospectus. If a
bankruptcy proceeding is commenced in respect of ML&Co., the claim of the
beneficial owner of a MITTS Security may be limited, under Section 502(b)(2)
of Title 11 of the United States Code, to the principal amount per unit of the
MITTS Security plus an additional amount of contingent interest calculated as
though the date of the commencement of the proceeding were the maturity date
of the MITTS Securities.

     In case of default in payment of the MITTS Securities, whether at the
stated maturity or upon acceleration, from and after the maturity date the
MITTS Securities shall bear interest, payable upon demand of the beneficial
owners thereof, at the rate of 8% per annum, to the extent that payment of any
interest shall be legally enforceable, on the unpaid amount due and payable on
that date in accordance with the terms of the MITTS Securities to the date
payment of any amount has been made or duly provided for.

Global Securities

     Description of the Global Securities

     Beneficial owners of the MITTS Securities may not receive physical
delivery of the MITTS Securities nor may they be entitled to have the MITTS
Securities registered in their names. The MITTS Securities currently are
represented by one or more fully registered global securities. Each global
security was deposited with, or on behalf of, The Depository Trust Company or
DTC, DTC together with any successor thereto, being a "depositary", as
depositary, registered in the name of Cede & Co., DTC's partnership nominee.
Unless and until it is exchanged in whole or in part for MITTS Securities in
definitive form, no global security may be transferred except as a whole by
the depositary to a nominee of the depositary or by a nominee of the
depositary to the depositary or another nominee of the depositary or by the
depositary or any nominee to a successor of the depositary or a nominee of
that successor.

     So long as DTC, or its nominee, is a registered owner of a global
security, DTC or its nominee, as the case may be, will be considered the sole
owner or holder of the MITTS Securities represented by a global security for
all purposes under the 1983 Indenture. Except as provided below, the
beneficial owners of the MITTS Securities represented by a global security
will not be entitled to have the MITTS Securities represented by the global
security registered in their names, will not receive or be entitled to receive
physical delivery of the MITTS Securities in definitive form and will not be
considered the owners or holders under the 1983 Indenture, including for
purposes of receiving any reports delivered by ML&Co. or the trustee under the
1983 Indenture. Accordingly, each person owning a beneficial interest in a
global security must rely on the procedures of DTC and, if that person is not
a participant of DTC on the procedures of the participant through which that
person owns its interest, to exercise any rights of a holder under the 1983
Indenture. ML&Co. understands that under existing industry practices, in the
event that ML&Co. requests any action of holders or that an owner of a
beneficial interest in a global security desires to give or take any action
which a holder is entitled to give or take under the 1983 Indenture, DTC would
authorize the participants holding the relevant beneficial interests to give
or take any action, and the participants would authorize beneficial owners
owning through those participants to give or take action or would otherwise
act upon the instructions of beneficial owners. Conveyance of notices and
other communications by DTC to participants, by participants to indirect
participants and by participants and indirect participants to beneficial
owners will be governed by arrangements among them, subject to any statutory
or regulatory requirements as may be in effect from time to time.


<PAGE>


     DTC Procedures

     The following is based on information furnished by DTC:

     DTC is the securities depositary for the MITTS Securities. The MITTS
Securities were issued as fully registered securities registered in the name
of Cede & Co., DTC's partnership nominee. One or more fully registered global
securities were issued for the MITTS Securities in the aggregate principal
amount of the MITTS Securities, and were deposited with DTC.

     DTC is a limited-purpose trust company organized under the New York
Banking Law, a "banking organization" within the meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing corporation"
within the meaning of the New York Uniform Commercial Code, and a "clearing
agency" registered under to the provisions of Section 17A of the Securities
and Exchange Act of 1934, as amended. DTC holds securities that its
participants deposit with DTC. DTC also facilitates the settlement among
participants of securities transactions, such as transfers and pledges, in
deposited securities through electronic computerized book-entry changes in
participants' accounts, thereby eliminating the need for physical movement of
securities certificates. Direct participants of DTC include securities brokers
and dealers, banks, trust companies, clearing corporations and other
organizations. DTC is owned by a number of its direct participants and by the
NYSE, the AMEX and the National Association of Securities Dealers, Inc. Access
to the DTC's system is also available to others such as securities brokers and
dealers, banks and trust companies that clear through or maintain a custodial
relationship with a direct participant, either directly or indirectly. The
rules applicable to DTC and its participants are on file with the SEC.

     Purchases of MITTS Securities under DTC's system must be made by or
through direct participants, which will receive a credit for the MITTS
Securities on DTC's records. The ownership interest of each beneficial owner
is in turn to be recorded on the records of direct and indirect participants.
Beneficial owners will not receive written confirmation from DTC of their
purchase, but beneficial owners are expected to receive written confirmations
providing details of the transaction, as well as periodic statements of their
holdings, from the direct participants or indirect participants through which
the beneficial owner entered into the transaction. Transfers of ownership
interests in the MITTS Securities are to be accomplished by entries made on
the books of participants acting on behalf of beneficial owners.

     To facilitate subsequent transfers, all MITTS Securities deposited with
DTC are registered in the name of DTC's partnership nominee, Cede & Co. The
deposit of MITTS Securities with DTC and their registration in the name of
Cede & Co. effect no change in beneficial ownership. DTC has no knowledge of
the actual beneficial owners of the MITTS Securities; DTC's records reflect
only the identity of the direct participants to whose accounts the MITTS
Securities are credited, which may or may not be the beneficial owners. The
participants will remain responsible for keeping account of their holdings on
behalf of their customers.


<PAGE>


     Conveyance of notices and other communications by DTC to direct
participants, by direct participants to indirect participants, and by direct
and indirect participants to beneficial owners will be governed by
arrangements among them, subject to any statutory or regulatory requirements
as may be in effect from time to time.

     Neither DTC nor Cede & Co. will consent or vote with respect to the MITTS
Securities. Under its usual procedures, DTC mails an omnibus proxy to ML&Co.
as soon as possible after the applicable record date. The omnibus proxy
assigns Cede & Co.'s consenting or voting rights to those direct participants
identified in a listing attached to the omnibus proxy to whose accounts the
MITTS Securities are credited on the record date identified in a listing
attached to the omnibus proxy.

     Principal, premium, if any, and/or interest, if any, payments on the
MITTS Securities will be made in immediately available funds to DTC. DTC's
practice is to credit direct participants' accounts on the applicable payment
date in accordance with their respective holdings shown on the depositary's
records unless DTC has reason to believe that it will not receive payment on
that date. Payments by participants to beneficial owners will be governed by
standing instructions and customary practices, as is the case with securities
held for the accounts of customers in bearer form or registered in "street
name", and will be the responsibility of the participant and not of DTC, the
trustee or ML&Co., subject to any statutory or regulatory requirements as may
be in effect from time to time. Payment of principal, premium, if any, and/or
interest, if any, to DTC is the responsibility of ML&Co. or the trustee,
disbursement of payments to direct participants is the responsibility of DTC,
and disbursement of payments to the beneficial owners is the responsibility of
direct and indirect participants.

     Exchange for Certificated Securities

     If:

     o  the depositary is at any time unwilling or unable to continue as
        depositary and a successor depositary is not appointed by ML&Co.
        within 60 days,

     o  ML&Co. executes and delivers to the trustee a company order to the
        effect that the global securities shall be exchangeable, or

     o  an Event of Default under the 1983 Indenture has occurred and is
        continuing with respect to the MITTS Securities,

the global securities will be exchangeable for MITTS Securities in definitive
form of like tenor and of an equal aggregate principal amount, in
denominations of $10 and integral multiples of $10. The definitive MITTS
Securities will be registered in the name or names as the depositary shall
instruct the trustee. It is expected that instructions may be based upon
directions received by the depositary from participants with respect to
ownership of beneficial interests in the global securities.

     In addition, ML&Co. may decide to discontinue use of the system of
book-entry transfers through the depositary. In that event, MITTS Securities
in definitive form will be printed and delivered.

     The information in this section conc0erning DTC and DTC's system has been
obtained from sources that ML&Co. believes to be reliable, but ML&Co. takes no
responsibility for its accuracy.
    

Same-Day Settlement and Payment

   
     All payments of principal and the Supplemental Redemption Amount, if any,
will be made by ML&Co. in immediately available funds so long as the MITTS
Securities are maintained in book-entry form.
    


<PAGE>


                                   THE INDEX

   
     All disclosures contained in this prospectus regarding the Index,
including its make-up, method of calculation and changes in its components,
are derived from publicly available information prepared by S&P as of March 22,
1999.  ML&Co. and MLPF&S do not assume any responsibility for the accuracy or
completeness of this information.

     The Index is published by S&P, and is intended to provide an indication
of the pattern of common stock price movement. The calculation of the value of
the Index, discussed below in further detail, is based on the relative value
of the aggregate Market Value of the common stocks of 500 companies as of a
particular time compared to the aggregate average Market Value of the common
stocks of 500 similar companies during the base period of the years 1941
through 1943. As of March 22, 1999 the 500 companies included in the Index
represented approximately 78% of the aggregate Market Value of common stocks
traded on the NYSE; however, these 500 companies are not the 500 largest
companies listed on the NYSE and not all of these 500 companies are listed on
the exchange. As of March 22, 1999, the aggregate Market Value of the 500
companies included in the Index represented approximately 79% of the aggregate
Market Value of United States domestic, public companies. S&P chooses
companies for inclusion in the Index with the aim of achieving a distribution
by broad industry groupings that approximates the distribution of these
groupings in the common stock population of the NYSE, which S&P uses as an
assumed model for the composition of the total market. Relevant criteria
employed by S&P include:
    

     o  the viability of the particular company,

     o  the extent to which that company represents the industry group to
        which it is assigned,

   
     o  the extent to which the market price of that company's common stock is
        generally responsive to changes in the affairs of the respective
        industry, and
    

     o  the Market Value and trading activity of the common stock of that
        company.

   
     Four main groups of companies comprise the Index, with the number of
companies currently included in each group indicated in parentheses:
Industrials (380), Utilities (39), Transportation (10) and Financial (71). S&P
may from time to time, in its sole discretion, add companies to, or delete
companies from, the Index to achieve the objectives stated above.

     The Index does not reflect the payment of dividends on the stocks
underlying it. The return based on the MITTS Securities will not be the same
return you would receive if you were to purchase the underlying stocks and
hold them for a period equal to the maturity of the MITTS Securities.

Computation of the Index
    

     S&P currently computes the Index as of a particular time as follows:

   
          (a) the product of the market price per share and the number of then
     outstanding shares of each component stock is determined at a particular
     time (the "Market Value" of the stock);

          (b) the Market Value of all component stock as of that time is
     aggregated;

          (c) the mean average of the Market Values as of each week in the
     base period of the years 1941 through 1943 of the common stock of each
     company in a group of 500 substantially similar companies is determined;

          (d) the mean average Market Values of all these common stocks over
     the base period are aggregated (the aggregate amount being referred to as
     the "Base Value");


<PAGE>


          (e) the current aggregate Market Value of all component stocks is
     divided by the Base Value; and

          (f) the resulting quotient, expressed in decimals, is multiplied by
     ten.

     While S&P currently employs the above methodology to calculate the Index,
no assurance can be given that S&P will not modify or change this methodology
in a manner that may affect the Supplemental Redemption Amount, if any,
payable to beneficial owners of MITTS Securities upon maturity or otherwise.

     S&P adjusts the foregoing formula to negate the effects of changes in the
Market Value of component stocks that are determined by S&P to be arbitrary or
not due to true market fluctuations. Changes may result from such causes as
    

     o  the issuance of stock dividends,

   
     o  the granting to shareholders of rights to purchase additional shares
        of stock,

     o  the purchase of shares by employees pursuant to employee benefit
        plans,

     o  consolidations and acquisitions,

     o  the granting to shareholders of rights to purchase other securities of
        ML&Co.,
    

     o  the substitution by S&P of particular component stocks in the Index,
        and

     o  other reasons.

   
In these cases, S&P first recalculates the aggregate Market Value of all
component stocks, after taking account of the new market price per share of
the particular component stock or the new number of outstanding shares thereof
or both, and then determines the New Base Value in accordance with the
following formula:

        Old Base Value  X       New Market Value     = New Base Value
                                ----------------
                                Old Market Value

     The result is that the Base Value is adjusted in proportion to any change
in the aggregate Market Value of all component stocks resulting from the
causes referred to above to the extent necessary to negate the effects of
these causes upon the Index.

Historical Data on the Index

     The following table sets forth the value of the Index at the end of each
month, in the period from January 1990 through February 1999. These historical
data on the Index are not necessarily indicative of the future performance of
the Index or what the value of the MITTS Securities may be. Any historical
upward or downward trend in the value of the Index during any period set forth
below is not any indication that the Index is more or less likely to increase
or decrease at any time during the term of the MITTS Securities.


<PAGE>


<TABLE>
<CAPTION>
                    1990      1991      1992      1993      1994     1995      1996      1997      1998      1999
<S>               <C>       <C>       <C>       <C>       <C>       <C>      <C>       <C>     <C>       <C>
January.......     329.08    343.93    408.78    438.78    481.61    470.42   636.02    786.16    980.28  1,279.64
February......     331.89    367.07    412.70    443.38    467.14    487.39   640.43    790.82  1,049.34  1,238.33
March.........     339.94    375.22    403.69    451.67    445.77    500.71   645.50    757.12  1,101.75
April.........     330.80    375.34    414.95    440.19    450.91    514.71   654.17    801.34  1,111.75
May...........     361.23    389.83    415.35    450.19    456.51    533.40   669.12    848.28  1,090.82
June..........     358.02    371.16    408.14    450.53    444.27    544.75   670.63    885.14  1,133.84
July..........     356.15    387.81    424.22    448.13    458.26    562.06   639.95    954.29  1,120.67
August........     322.56    395.43    414.03    463.56    475.50    561.88   651.99    899.47    957.28
September.....     306.05    387.86    417.80    458.93    462.71    584.41   687.31    947.28  1,017.01
October.......     304.00    392.45    418.68    467.83    472.35    581.50   705.27    914.62  1,098.67
November......     322.22    375.22    431.35    461.79    453.69    605.37   757.02    955.40  1,163.63
December......     330.22    417.09    435.71    466.45    459.27    615.93   740.74    970.43  1,229.23
</TABLE>

License Agreement

     Standard & Poor's ("S&P") does not guarantee the accuracy and/or the
completeness of the Index or any data included in the Index. S&P makes no
warranty, express or implied, as to results to be obtained by ML&Co., MLPF&S,
holders of the MITTS Securities, or any other person or entity from the use of
the S&P Index or any data included in the Index in connection with the rights
licensed under the license agreement described in this prospectus or for any
other use. S&P makes no express or implied warranties, and hereby expressly
disclaims all warranties of merchantability or fitness for a particular
purpose with respect to the S&P Index or any data included in the Index.
Without limiting any of the above information, in no event shall S&P have any
liability for any special, punitive, indirect or consequential damage,
including lost profits, even if notified of the possibility of these damages.

     S&P and Merrill Lynch Capital Services, Inc. have entered into a
non-exclusive license agreement providing for the license to Merrill Lynch
Capital Services, Inc., in exchange for a fee, of the right to use indices
owned and published by S&P in connection with some securities, including the
MITTS Securities, and ML&Co. is an authorized sublicensee of Merrill Lynch
Capital Services, Inc.

     The license agreement between S&P and Merrill Lynch Capital Services,
Inc. provides that the following language must be stated in this prospectus:

     "The MITTS Securities are not sponsored, endorsed, sold or promoted by
S&P. S&P makes no representation or warranty, express or implied, to the
holders of the MITTS Securities or any member of the public regarding the
advisability of investing in securities generally or in the MITTS Securities
particularly or the ability of the Index to track general stock market
performance. S&P's only relationship to Merrill Lynch Capital Services, Inc.
and ML&Co. (other than transactions entered into in the ordinary course of
business) is the licensing of certain servicemarks and trade names of S&P and
of the Index which is determined, composed and calculated by S&P without
regard to ML&Co. or the MITTS Securities. S&P has no obligation to take the
needs of ML&Co. or the holders of the MITTS Securities into consideration in
determining, composing or calculating the Index. S&P is not responsible for
and has not participated in the determination of the timing of the sale of the
MITTS Securities, prices at which the MITTS Securities are to initially be
sold, or quantities of the MITTS Securities to be issued or in the
determination or calculation of the equation by which the MITTS Securities are
to be converted into cash. S&P has no obligation or liability in connection
with the administration, marketing or trading of the MITTS Securities."

     All disclosures contained in this prospectus regarding the Index,
including its make-up, method of calculation and changes in its components,
are derived from publicly available information prepared by S&P. ML&Co. and
MLPF&S do not assume any responsibility for the accuracy or completeness of
this information.

                                  OTHER TERMS

     ML&Co. issued the MITTS Securities as a series of senior debt securities
under the 1983 Indenture, dated as of April 1, 1983, as amended and restated,
between ML&Co. and The Chase Manhattan Bank, as trustee. A copy of the 1983
Indenture is filed as an exhibit to the registration statement relating to the
MITTS Securities of which this prospectus is a part. The following summaries
of the material provisions of the 1983 Indenture are not complete and are
subject to, and qualified in their entirety by reference to, all provisions of
the 1983 Indenture, including the definitions of terms in the 1983 Indenture.

     ML&Co. may issue series of senior debt securities from time to time under
the 1983 Indenture, without limitation as to aggregate principal amount, in
one or more series and upon terms as ML&Co. may establish under the provisions
of the 1983 Indenture.

     The 1983 Indenture and the MITTS Securities are governed by and construed
in accordance with the laws of the State of New York.

     ML&Co. may issue senior debt securities with terms different from those
of senior debt securities previously issued, and issue additional senior debt
securities of a previously issued series of senior debt securities.

     The senior debt securities are unsecured and rank equally with all other
unsecured and unsubordinated indebtedness of ML&Co. However, because ML&Co. is
a holding company, the rights of ML&Co. and its creditors, including the
holders of senior debt securities, to participate in any distribution of the
assets of any subsidiary upon its liquidation or reorganization or otherwise
are necessarily subject to the prior claims of creditors of the subsidiary,
except to the extent that a bankruptcy court may recognize claims of ML&Co.
itself as a creditor of the subsidiary.  In addition, dividends, loans and
advances from certain subsidiaries, including MLPF&S, to ML&Co. are restricted
by net capital requirements under the Exchange Act, and under rules of
exchanges and other regulatory bodies.
    

Limitations Upon Liens

   
     ML&Co. may not, and may not permit any majority-owned subsidiary to,
create, assume, incur or permit to exist any indebtedness for borrowed money
secured by a pledge, lien or other encumbrance, other than those liens
specifically permitted by the 1983 Indenture, on the Voting Stock owned
directly or indirectly by ML&Co. of any majority-owned subsidiary, other than
a majority-owned subsidiary which, at the time of the incurrence of the
secured indebtedness, has a net worth of less than $3,000,000, unless the
outstanding senior debt securities are secured equally and ratably with the
secured indebtedness.

     "Voting Stock" is defined in the 1983 Indenture as the stock of the class
or classes having general voting power under ordinary circumstances to elect
at least a majority of the board of directors, managers or trustees of a
corporation provided that, for the purposes of the 1983 Indenture, stock that
carries only the right to vote conditionally on the occurrence of an event is
not considered voting stock whether or not the event has happened.
    

Limitation on Disposition of Voting Stock of, and Merger and Sale of Assets
by, MLPF&S

   
     ML&Co. may not sell, transfer or otherwise dispose of any Voting Stock of
MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of its
Voting Stock, unless, after giving effect to any such transaction, MLPF&S
remains a Controlled Subsidiary.


<PAGE>


     "Controlled Subsidiary" is defined in the 1983 Indenture to mean a
corporation more than 80% of the outstanding shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

     In addition, ML&Co. may not permit MLPF&S to:

     o  merge or consolidate, unless the surviving company is a Controlled
        Subsidiary, or
    

     o  convey or transfer its properties and assets substantially as an
        entirety, except to one or more Controlled Subsidiaries.

Merger and Consolidation

   
     ML&Co. may consolidate or merge with or into any other corporation and
ML&Co. may sell, lease or convey all or substantially all of its assets to any
corporation, provided that:

     o  the resulting corporation, if other than ML&Co., is a corporation
        organized and existing under the laws of the United States of America
        or any U.S. state and assumes all of ML&Co.'s obligations to:

        o  pay any amounts due and payable or deliverable with respect to all
           the senior debt securities; and

        o  perform and observe all of ML&Co.'s obligations under the 1983
           Indenture, and

     o  ML&Co. or the successor corporation, as the case may be, is not,
        immediately after any consolidation or merger, in default under the
        1983 Indenture.
    

Modification and Waiver

   
     ML&Co. and the trustee may modify and amend the 1983 Indenture with the
consent of holders of at least 66 2/3% in principal amount of each outstanding
series of senior debt securities affected. However, without the consent of
each holder of any outstanding senior debt security affected, no amendment or
modification to the 1983 Indenture may:

     o  change the stated maturity date of the principal of, or any
        installment of interest or Additional Amounts payable on, any senior
        debt security or any premium payable on redemption, or change the
        redemption price;

     o  reduce the principal amount of, or the interest or Additional Amounts
        payable on, any senior debt security or reduce the amount of principal
        which could be declared due and payable before the stated maturity
        date;

     o  change the place or currency of any payment of principal or any
        premium, interest or Additional Amounts payable on any senior debt
        security;

     o  impair the right to institute suit for the enforcement of any payment
        on or with respect to any senior debt security;

     o  reduce the percentage in principal amount of the outstanding senior
        debt securities of any series, the consent of whose holders is
        required to modify or amend the 1983 Indenture; or


<PAGE>


     o  modify the foregoing requirements or reduce the percentage of
        outstanding senior debt securities necessary to waive any past default
        to less than a majority.

     No modification or amendment of ML&Co.'s Subordinated Indenture or any
Subsequent Indenture for subordinated debt securities may adversely affect the
rights of any holder of ML&Co.'s senior indebtedness without the consent of
each holder affected. The holders of at least a majority in principal amount
of outstanding senior debt securities of any series may, with respect to that
series, waive past defaults under the 1983 Indenture and waive compliance by
ML&Co. with provisions in the 1983 Indenture, except as described under
"--Events of Default".

Events of Default

     Each of the following will be Events of Default with respect to senior
debt securities of any series:

     o  default in the payment of any interest or Additional Amounts payable
        when due and continuing for 30 days;

     o  default in the payment of any principal or premium when due;

     o  default in the deposit of any sinking fund payment, when due;

     o  default in the performance of any other obligation of ML&Co. contained
        in the 1983 Indenture for the benefit of that series or in the senior
        debt securities of that series, continuing for 60 days after written
        notice as provided in the 1983 Indenture;

     o  specified events in bankruptcy, insolvency or reorganization of
        ML&Co.; and

     o  any other Event of Default provided with respect to senior debt
        securities of that series which are not inconsistent with the 1983
        Indenture.

     If an Event of Default occurs and is continuing for any series of senior
debt securities, other than as a result of the bankruptcy, insolvency or
reorganization of ML&Co., the trustee or the holders of at least 25% in
principal amount of the outstanding senior debt securities of that series may
declare all amounts, or any lesser amount provided for in the senior debt
securities, due and payable or deliverable immediately. At any time after a
declaration of acceleration has been made with respect to senior debt
securities of any series but before the trustee has obtained a judgment or
decree for payment of money, the holders of a majority in principal amount of
the outstanding senior debt securities of that series may rescind any
declaration of acceleration and its consequences, if all payments due, other
than those due as a result of acceleration, have been made and all Events of
Default have been remedied or waived.

     The holders of a majority in principal amount or aggregate issue price of
the outstanding senior debt securities of that series may waive any Event of
Default with respect to that series, except a default:

     o  in the payment of any amounts due and payable or deliverable under the
        debt securities of that series; or

     o  in respect of an obligation or provision of the 1983 Indenture which
        cannot be modified under the terms of that Indenture without the
        consent of each holder of each outstanding security of each series of
        senior debt securities affected.


<PAGE>


     The holders of a majority in principal amount of the outstanding senior
debt securities of a series may direct the time, method and place of
conducting any proceeding for any remedy available to the trustee or
exercising any trust or power conferred on the trustee with respect to those
senior debt securities, provided that any direction shall not be in conflict
with any rule of law or the 1983 Indenture. Before proceeding to exercise any
right or power under the 1983 Indenture at the direction of the holders, the
trustee shall be entitled to receive from the holders reasonable security or
indemnification against the costs, expenses and liabilities which might be
incurred by it in complying with any direction.

     The MITTS Securities and other series of senior debt securities issued
under the 1983 Indenture do not have the benefit of any cross-default
provisions with other indebtedness of ML&Co.

     ML&Co. is required to furnish to the trustee annually a statement as to
the fulfillment by ML&Co. of all of its obligations under the 1983 Indenture.

                          PROJECTED PAYMENT SCHEDULE

     Solely for purposes of applying the Treasury Department Final Regulations
(the "Final Regulations") concerning the United States Federal income tax
treatment of contingent payment debt instruments to the MITTS Securities,
ML&Co. has determined that the projected payment schedule for the MITTS
Securities will consist of payment on the maturity date of the principal
amount and a projected Supplemental Redemption Amount equal to $5.0390 per
unit. This represents an estimated yield on the MITTS Securities equal to
5.90% per annum (compounded semiannually).

     The projected payment schedule (including both the projected Supplemental
Redemption Amount and the estimated yield on the MITTS Securities) has been
determined solely for United States Federal income tax purposes (i.e., for
purposes of applying the Final Regulations to the MITTS Securities), and is
neither a prediction nor a guarantee of what the actual Supplemental
Redemption Amount will be, or that the actual Supplemental Redemption Amount
will even exceed zero.

     The following table sets forth the amount of interest that will be deemed
to have accrued with respect to each unit of the MITTS Securities during each
accrual period over a term of seven years and one day for the MITTS Securities
based upon the projected payment schedule for the MITTS Securities, including
both the projected Supplemental Redemption Amount and the estimated yield
equal to 5.90% per annum, compounded semiannually, as determined by ML&Co. for
purposes of application of the Final Regulations to the MITTS Securities:


<PAGE>


<TABLE>
<CAPTION>
                                                                                                  Total Interest
                                                                                                     Deemed to
                                                                                                   Have Accrued
                                                                                                   on the MITTS
                                                                        Interest Deemed to          Securities
                                                                          Accrue During            as of End of
                                                                          Accrual Period          Accrual Period
                     Accrual Period                                         (per unit)              (per unit)
<S>                                                                          <C>                     <C>
 June 26, 1998 through January 1, 1999........................                $0.3057                 $0.3057
 January  2, 1999 through July 1, 1999........................                $0.3040                 $0.6097
 July 2, 1999 through January 1, 2000.........................                $0.3130                 $0.9227
 January 2, 2000 through July 1, 2000.........................                $0.3222                 $1.2449
 July 2, 2000 through January 1, 2001.........................                $0.3317                 $1.5766
 January 2, 2001 through July 1, 2001.........................                $0.3415                 $1.9181
 July 2, 2001 through January 1, 2002.........................                $0.3516                 $2.2697
 January 2, 2002 through July 1, 2002.........................                $0.3620                 $2.6317
 July 2, 2002 through January 1, 2003.........................                $0.3726                 $3.0043
 January 2, 2003 through July 1, 2003.........................                $0.3836                 $3.3879
 July 2, 2003 through January 1, 2004.........................                $0.3950                 $3.7829
 January 2, 2004 through July 1, 2004.........................                $0.4066                 $4.1895
 July 2, 2004 through January 1, 2005.........................                $0.4186                 $4.6081
 January 2, 2005 through July 1, 2005.........................                $0.4309                 $5.0390
</TABLE>
 ------------------
 Projected Supplemental Redemption Amount = $5.0390 per unit.

     All prospective investors in the MITTS Securities should consult their
own tax advisors concerning the application of the Final Regulations to their
investment in the MITTS Securities. Investors in the MITTS Securities may also
obtain the projected payment schedule, as determined by ML&Co. for purposes of
the application of the Final Regulations to the MITTS Securities, by
submitting a written request for the information to Merrill Lynch & Co., Inc.,
Attn: Darryl W. Colletti, Corporate Secretary's Office, 100 Church Street,
12th Floor, New York, New York 10080-6512.

                      WHERE YOU CAN FIND MORE INFORMATION

         We file reports, proxy statements and other information with the SEC.
Our SEC filings are also available over the Internet at the SEC's web site at
http://www.sec.gov. You may also read and copy any document we file by
 visiting the SEC's public reference rooms in Washington, D.C., New York, New
York, and Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further
information about the public reference rooms. You may also inspect our SEC
reports and other information at the New York Stock Exchange, Inc., 20 Broad
Street, New York, New York 10005.

     We have filed a registration statement on Form S-3 with the SEC covering
the MITTS Securities and other securities. For further information on ML&Co.
and the MITTS Securities, you should refer to our registration statement and
its exhibits. This prospectus summarizes material provisions of contracts and
other documents that we refer you to. Because the prospectus may not contain
all the information that you may find important, you should review the full
text of these documents. We have included copies of these documents as
exhibits to our registration statement of which this prospectus is a part.

               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

     The SEC allows us to incorporate by reference the information we file
with them, which means:

     o  incorporated documents are considered part of the prospectus;

     o  we can disclose important information to you by referring you to those
        documents; and

     o  information that we file with the SEC will automatically update and
        supersede this incorporated information.

     We incorporate by reference the documents listed below which were filed
with the SEC under the Exchange Act:

     o  annual report on Form 10-K for the year ended December 25, 1998; and

     o  current reports on Form 8-K dated December 28, 1998, January 19, 1999,
        February 17, 1999, February 18, 1999, February 22, 1999, February 23,
        1999 and March 26, 1999.

     We also incorporate by reference each of the following documents that we
will file with the SEC after the date of this prospectus until this offering
is completed or after the date of this initial registration statement and
before the effectiveness of the registration statement:

     o  reports filed under Sections 13(a) and (c) of the Exchange Act;

     o  definitive proxy or information statements filed under Section 14 of
        the Exchange Act in connection with any subsequent stockholders'
        meeting; and

     o  any reports filed under Section 15(d) of the Exchange Act.

         You should rely only on information contained or incorporated by
reference in this prospectus. We have not, and MLPF&S has not, authorized any
other person to provide you with different information. If anyone provides you
with different or inconsistent information, you should not rely on it. We are
not, and MLPF&S is not, making an offer to sell these securities in any
jurisdiction where the offer or sale is not permitted.

     You should assume that the information appearing in this prospectus is
accurate as of the date of this prospectus only. Our business, financial
condition and results of operations may have changed since that date.

     You may request a copy of any filings referred to above (excluding
exhibits), at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan, Jr., Corporate Secretary's Office, Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.

                             PLAN OF DISTRIBUTION

     This prospectus has been prepared in connection with secondary sales of
the MITTS Securities and is to be used by MLPF&S when making offers and sales
related to market-making transactions in the MITTS Securities.

     MLPF&S may act as principal or agent in these market-making transactions.

     The MITTS Securities offered on the NYSE or off the exchange in
negotiated transactions or otherwise.

     The distribution of the MITTS Securities will conform to the requirements
set forth in the applicable sections of Rule 2720 of the Conduct Rules of the
NASD.
    

                                    EXPERTS

   
     The consolidated financial statements and the related financial statement
schedule incorporated in this prospectus by reference from the Annual Report on
Form 10-K of Merrill Lynch & Co., Inc. and subsidiaries have been audited by
Deloitte & Touche LLP, independent auditors, as stated in their reports (which
express an unqualified opinion and which report on the consolidated financial
statements includes an explanatory paragraph for the change in accounting method
for certain internal-use software development costs), which are incorporated
herein by reference, and have been so incorporated in reliance upon the reports
of such firm given upon their authority as experts in accounting and auditing.
    
<PAGE>
   
The information in this prospectus is not complete and may be changed.  We may
not sell these securities until the registration statement filed with the
Securities and Exchange Commission if effective.  This prospectus is not an
offer to sell these securities and it is not soliciting an offer to buy these
securities in any state where the offer or sale is not permitted.
    

                             Subject to Completion

   
                  Preliminary Prospectus dated March 29, 1999
    

P R O S P E C T U S
- -------------------

                           Merrill Lynch & Co., Inc.
    Top Ten Yield Market Index Target-Term Securities(R) due August 15, 2006

   
                             "MITTS(R) Securities"
                         $10 principal amount per unit

     Merrill Lynch & Co., Merrill Lynch, Pierce, Fenner & Smith Incorporated,
our wholly-owned subsidiary, will use this prospectus when making offers and
sales related to market-making transactions in the MITTS Securities.

<TABLE>
<S>                                         <C>
The MITTS Securities:                        Payment at Maturity:
o  100% principal protection at maturity     o  On the maturity date, for each unit of the
o  No payments before the maturity date         MITTS Securities you own, we will pay you
o  Senior unsecured debt securities of          an amount equal to the sum of the principal
   Merrill Lynch & Co., Inc.                    amount of each unit and an additional
o  Linked to the value of the Top Ten Yield     amount based on the percentage increase, if
   Index                                        any, in the value of the index as described
o  The MITTS Securities are listed on the       in this prospectus
   American Stock Exchange under the         o  You will receive the principal amount of
   symbol "MTT"                                 your MITTS Securities, plus an amount no
                                                less than $2.40 per unit, representing a
                                                minimum yield-to-maturity of 2.16% per
                                                year
</TABLE>

               Investing in the MITTS Securities involves risks.
                    See "Risk Factors" beginning on page 3.
    

     Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if
this prospectus is truthful or complete. Any representation to the contrary is
a criminal offense.

   
     The sale price of the MITTS Securities will be the prevailing market
price at the time of sale.
    

                           ------------------------

                              Merrill Lynch & Co.

                           ------------------------

                  The date of this prospectus is      , 199 .

   
   "MITTS" and "Market Index Target-Term Securities" are registered service
                      marks of Merrill Lynch & Co., Inc.


<PAGE>


                               TABLE OF CONTENTS

                                                                          Page

RISK FACTORS.................................................................3

MERRILL LYNCH & CO., INC.....................................................7

RATIO OF EARNINGS TO FIXED CHARGES...........................................8

DESCRIPTION OF THE MITTS SECURITIES..........................................9

THE INDEX...................................................................17

OTHER TERMS.................................................................21

WHERE YOU CAN FIND MORE INFORMATION.........................................24
    

INCORPORATION OF INFORMATION WE FILE WITH THE SEC...........................24

   
PLAN OF DISTRIBUTION........................................................25

EXPERTS.....................................................................25


<PAGE>


                                 RISK FACTORS

You may not earn a return on your investment.

     You may not earn a return on your investment. You should be aware that
at maturity if the average value of the index over five trading days shortly
before the maturity date does not exceed 100 by more than 24%, we will pay you
no more than $10 plus $2.40 for each unit of your MITTS Securities. This will
be true even if, at some time during the life of the MITTS Securities the
value of the index exceeded 124.

Your yield may be lower than the yield on a standard debt security of
comparable maturity.

     The amount we pay you at maturity may be less than the return you could
earn on other investments. Your yield may be less than the yield you would
earn if you bought a standard senior non-callable Merrill Lynch & Co., Inc.
debt security with the same maturity. Your investment may not reflect the full
opportunity cost to you when you take into account factors that affect the
time value of money.

Your return will not reflect the return of owning the stocks included in the
index.

     While the index does reflect the payment of dividends on the stocks
underlying the index as described in more detail below, the yield based on the
index to the maturity of the MITTS Securities will not produce the same yield
as if you purchased the underlying stocks and held them for a similar period.
At the end of each calendar quarter, the dividends accrued on the stocks
underlying the index will be incorporated into the index by adjusting the
share multipliers of these stocks and these amounts will then be subject to
the price movements of the stocks. In addition, as described in more detail
below, at the end of each calendar quarter, an amount equal to 0.4375% of the
current value of the index will be deducted from the value of the index,
provided that

     o  there was no deduction at the end of the calendar quarter ending in
        September 1996 and the deduction at the end of the calendar quarter
        ending in December 1996 was increased to reflect the quarterly rate of
        0.4375% prorated for the period from the date of the issuance of the
        MITTS Securities through the end of the calendar quarter in December
        1996, and

     o  there will be a prorated amount deducted on July 31, 2006 equal to
        0.1507% of the then current index value to reflect the quarterly rate
        of 0.4375% for the period from July 1, 2006 through July 31, 2006.

Although the index is based on stocks that are selected based on dividends
paid, you will not receive any interest, periodic or otherwise, on the MITTS
Securities before their maturity.

There may be an uncertain trading market for the MITTS Securities in the
future.

     Although the MITTS Securities are listed on the NYSE under the symbol
"MTT," you cannot assume that a trading market will continue to exist for the
MITTS Securities. If a trading market in the MITTS Securities continues to
exist, you cannot assume that there will be liquidity in the trading market.
The continued existence of a trading market for the MITTS Securities will
depend on our financial performance and other factors such as the
appreciation, if any, of the value of the index.

     If the trading market for the MITTS Securities is limited and you do not
wish to hold your investment until maturity, there may be a limited number of
buyers for your MITTS Securities. This may affect the price you receive if you
sell before maturity.


<PAGE>


There are many factors affecting trading value of the MITTS.

     We believe that the value of the index and by a number of other factors
will affect the trading value of the MITTS Securities. Some of these factors
interrelate in complex ways; as a result, the effect of any one factor may
offset or magnify the effect of another factor. The following paragraphs
describe the expected impact on the trading value of the MITTS Securities
given a change in a specific factor, assuming all other conditions remain
constant.

     o  The value of the index. We expect that the market value of the MITTS
        Securities will depend substantially on the amount by which the index
        exceeds the starting index value. If you choose to sell your MITTS
        Securities when the value of the index exceeds the starting index
        value, you may receive substantially less than the amount that would
        be payable at maturity based on that index value because of the
        expectation that the index will continue to fluctuate until the ending
        index value is determined. If you choose to sell your MITTS Securities
        when the value of the index is below the starting index value, you may
        receive less than the $10 principal amount per unit of MITTS
        Securities. In general, rising Japanese dividend rates, or dividends
        per share, may increase the value of the index while falling Japanese
        dividend rates may decrease the value of the index. Political,
        economic and other developments that affect the stocks underlying the
        index may also affect the value of the index and the value of the
        MITTS Securities.

     o  Interest rates. Because we will pay, at a minimum, the principal
        amount per unit of the MITTS Securities at maturity, we expect that
        changes in interest rates will affect the trading value of the MITTS
        Securities. In general, if U.S. interest rates increase, we expect
        that the trading value of the MITTS Securities will decrease and,
        conversely, if U.S. interest rates decrease, we expect the trading
        value of the MITTS Securities will increase. Interest rates may also
        affect the U.S. economy, and, in turn, the value of the index. Rising
        interest rates may lower the value of the index and, thus, may
        decrease the trading value of the MITTS Securities. Falling interest
        rates may increase the value of the index, and, thus may increase the
        trading value of the MITTS Securities.

     o  Volatility of the index. Volatility is the term used to describe the
        size and frequency of market fluctuations. If the volatility of the
        index increases, we expect that the trading value of the MITTS
        Securities will increase. If the volatility of the index decreases, we
        expect that the trading value of the MITTS Securities will decrease.

     o  Time remaining to maturity. We anticipate that before the maturity of
        the MITTS Securities, the MITTS Securities may trade at a value above
        that which would be expected based on the level of interest rates and
        the index. This difference will reflect a "time premium" due to
        expectations concerning the value of the index during the period prior
        to maturity of the MITTS Securities. However, as the time remaining to
        maturity of the MITTS Securities decreases, we expect that this time
        premium will decrease, lowering the trading value of the MITTS
        Securities.

     o  Dividend yields. If dividend yields on the stocks comprising the index
        increase, we expect that the value of the MITTS Securities will
        decrease. Conversely, if dividend yields on the stocks comprising the
        index decrease, we expect that the value of the MITTS Securities will
        increase.

     o  Changes in our credit ratings. Our credit ratings are an assessment of
        our ability to pay our obligations. Consequently, real or anticipated
        changes in our credit ratings may affect the trading value of the
        MITTS Securities. However, because your return on your MITTS
        Securities is dependent upon factors in addition to our ability to pay
        our obligations under the MITTS Securities, such as the percentage
        increase in the value of the index at maturity, an improvement in our
        credit ratings will not reduce investment risks related to the MITTS
        Securities.


<PAGE>


     We want you to understand that the impact of one of the factors specified
above, such as an increase in interest rates, may offset some or all of any
change in the trading value of the MITTS Securities attributable to another
factor, such as an increase in the index value.

     In general, assuming all relevant factors are held constant, we expect
that the effect on the trading value of the MITTS Securities of a given change
in most of the factors listed above will be less if it occurs later in the
term of the MITTS Securities than if it occurs earlier in the term of the
MITTS Securities except that we expect that the effect on the trading value of
the MITTS Securities of a given increase in the value of the index will be
greater if it occurs later in the term of the MITTS Securities than if it
occurs earlier in the term of the MITTS Securities.

Amounts payable on the MITTS Securities may be limited by state law

     New York State laws govern the indenture under which the MITTS Securities
are issued. New York has usury laws that limit the amount of interest that can
be charged and paid on loans, which includes debt securities like the MITTS.
Under present New York law, the maximum rate of interest is 25% per annum on a
simple interest basis. This limit may not apply to debt securities in which
$2,500,000 or more has been invested.

     While we believe that New York law would be given effect by a state or
Federal court sitting outside of New York, many other states also have laws
that regulate the amount of interest that may be charged to and paid by a
borrower. We will promise, for the benefit of the MITTS holders, to the extent
permitted by law, not to voluntarily claim the benefits of any laws concerning
usurious rates of interest.

Purchases and sales by us and our affiliates may affect your return

     We and our affiliates may from time to time buy or sell the stocks
underlying the index for our own accounts for business reasons or in
connection with hedging our obligations under the MITTS. These transactions
could affect the price of these stocks and the value of the index in a manner
that be adverse to your investment in the MITTS Securities.

Potential conflicts of interest

     Our subsidiary, Merrill Lynch, Pierce, Fenner & Smith Incorporated, or
MLPF&S, is our agent for the purposes of calculating the value of the index
and the amount payable to you at maturity. In some circumstances, MLPF&S's
role as our subsidiary and its responsibilities as calculation agent for the
MITTS Securities could give rise to conflicts of interests. These conflicts
could occur, for instance, in connection with its determination as to whether
the value of the index can be calculated on a particular trading day, or in
connection with judgments that it would be required to make in the event of a
discontinuance of the index. See "Description of the MITTS
Securities--Adjustments to the Index; Market Disruption Events" and
"--Discontinuance of the Index" in this prospectus. MLPF&S is required to
carry out its duties as calculation agent in good faith and using its
reasonable judgment. However, you should be aware that because we control
MLPF&S, potential conflicts of interest could arise.

     We have entered into an arrangement with one of our subsidiaries to hedge
the market risks associated with our obligation to pay amounts due at maturity
on the MITTS Securities. This subsidiary expects to make a profit in
connection with this arrangement. We did not seek competitive bids for this
arrangement from unaffiliated parties.
    

Other Considerations

   
     You should reach an investment decision with regard to the MITTS
Securities only after carefully considering the suitability of the MITTS
Securities in light of your particular circumstances.

     You should also consider the tax consequences of investing in the MITTS
Securities and should consult with your tax adviser.


<PAGE>


                           MERRILL LYNCH & CO., INC.

     We are a holding company that, through our U.S. and non-U.S. subsidiaries
and affiliates such as Merrill Lynch, Pierce, Fenner & Smith Incorporated,
Merrill Lynch Government Securities Inc., Merrill Lynch Capital Services,
Inc., Merrill Lynch International, Merrill Lynch Capital Markets Bank Ltd.,
Merrill Lynch Asset Management L.P. and Merrill Lynch Mercury Asset
Management, provides investment, financing, advisory, insurance, and related
products on a global basis, including:

     o  securities brokerage, trading and underwriting;

     o  investment banking, strategic services, including mergers and
        acquisitions and other corporate finance advisory activities;

     o  asset management and other investment advisory and recordkeeping
        services;

     o  trading and brokerage of swaps, options, forwards, futures and other
        derivatives;

     o  securities clearance services;

     o  equity, debt and economic research;

     o  banking, trust and lending services, including mortgage lending and
        related services; and

     o  insurance sales and underwriting services.

We provide these products and services to a wide array of clients, including
individual investors, small businesses, corporations, governments,
governmental agencies and financial institutions.

     Our principal executive office is located at World Financial Center,
North Tower, 250 Vesey Street, New York, New York 10281; our telephone number
is (212) 449-1000.

     If you want to find more information about us, please see the sections
entitled "Where You Can Find More Information" and "Incorporation of
Information We File with the SEC" in this prospectus.

     In this prospectus, "ML&Co.", "we", "us" and "our" refer specifically to
Merrill Lynch & Co., Inc., the holding company. ML&Co. is the issuer of the
MITTS Securities described in this prospectus.


<PAGE>


                      RATIO OF EARNINGS TO FIXED CHARGES

     In 1998, we acquired the outstanding shares of Midland Walwyn, Inc., in a
transaction accounted for as a pooling-of-interests. The following information
for the fiscal years 1994 through 1997 has been restated as if the two
entities had always been combined.

     The following table sets forth our historical ratios of earnings to fixed
charges for the periods indicated:

                                             Year Ended Last Friday in December
                                              1994   1995   1996   1997   1998
                                              --------------------------------
Ratio of earnings to fixed charges(a)......    1.2    1.2    1.2    1.2   1.1
- ----------
(a)  The effect of combining Midland Walwyn did not change the ratios reported
     for the fiscal years 1994 through 1997.

     For the purpose of calculating the ratio of earnings to fixed charges,
"earnings" consist of earnings from continuing operations before income taxes
and fixed charges, excluding capitalized interest and preferred security
dividend requirements. "Fixed charges" consist of interest costs, the interest
factor in rentals, amortization of debt issuance costs, preferred security
dividend requirements of subsidiaries, and capitalized interest.


<PAGE>


                      DESCRIPTION OF THE MITTS SECURITIES

     On August 26, 1996, ML&Co. issued $35,000,000 aggregate principal amount,
or 3,500,000 units of the MITTS Securities.

     The MITTS Securities were issued as a series of senior debt securities
under the 1983 Indenture which is more fully described in this prospectus.

     The MITTS Securities will mature on August 15, 2006.

     While at maturity a beneficial owner of a MITTS Security will receive the
principal amount of each MITTS Security plus the Supplemental Redemption
Amount described below, if any, ML&Co. will make no other payment of interest,
periodic or otherwise. See "- Payment at Maturity" below.

     The MITTS Securities are not subject to redemption by ML&Co. or at the
option of any beneficial owner before to maturity. Upon the occurrence of an
Event of Default with respect to the MITTS Securities, beneficial owners of
the MITTS Securities may accelerate the maturity of the MITTS Securities, as
described under "- Events of Default and Acceleration" and "Other Terms -
Events of Default" in this prospectus.

     The MITTS Securities were issued in denominations of whole units.
    

Payment at Maturity

   
     At the maturity date, a beneficial owner of a MITTS Security will be
entitled to receive the principal amount of each unit plus a supplemental
redemption amount as provided below. If the ending index value does not exceed
the starting index value by more than 24%, a beneficial owner of a MITTS
Security will be entitled to receive only the principal amount of its MITTS
Securities and the minimum supplemental redemption amount.

     The "Index" is the Top Ten Yield Index, described more fully on pages
15-19.

     The "Supplemental Redemption Amount" for a MITTS Security will be
determined by the calculation agent and will equal:
    

                              Ending Index Value - Starting Index Value
         Principal Amount X   -----------------------------------------
                                             Starting Index Value

   
provided, however, that in no event will the Supplemental Redemption Amount be
less than $2.40 per $10 principal amount of the MITTS Securities.

     The "Starting Index Value" was set at 100.

     The "Minimum Supplemental Redemption Amount" is equivalent to a rate of
return of 2.16% per annum calculated on a semi-annual bond equivalent basis.

     The "Ending Index Value" will be determined by the calculation agent and
will equal the average or arithmetic mean of the closing values of the Index
determined on each of the first five Calculation Days during the Calculation
Period. If there are fewer than five Calculation Days, then the Ending Index
Value will equal the average, or arithmetic mean, of the closing values of the
Index on these Calculation Days, and if there is only one Calculation Day,
then the Ending Index Value will equal the closing value of the Index on that
Calculation Day. If no Calculation Days occur during the Calculation Period,
then the Ending Index Value will equal the closing value of the Index
determined on the last scheduled Index Business Day in the Calculation Period,
regardless of the occurrence of a Market Disruption Event on that day.
    


<PAGE>


     The "Calculation Period" means the period from and including the seventh
scheduled Index Business Day prior to the maturity date to and including the
second scheduled Index Business Day prior to the maturity date.

     "Calculation Day" means any Index Business Day during the Calculation
Period on which a Market Disruption Event has not occurred.

   
     An "Index Business Day" is a day on which the NYSE and the AMEX are open
for trading and the index or any successor index, as defined on page 11 below,
is calculated and published.

     All determinations made by the calculation agent shall be at the sole
discretion of the calculation agent and, absent a determination by the
calculation agent of a manifest error, shall be conclusive for all purposes
and binding on ML&Co. and beneficial owners of the MITTS Securities.


<PAGE>


Hypothetical Returns

     The following table illustrates, for a range of hypothetical Ending Index
Values:

          o    the percentage change from the Starting Index Value to the
               Ending Index Value;

          o    the total amount payable  per unit of MITTS Securities;

          o    the total rate of return on the MITTS Securities;

          o    the pretax annualized rate of return on the MITTS Securities;
               and

          o    the pretax annualized rate of return of an investment in the
               stocks underlying the Index, as adjusted from time to time,
               that experience the same price changes and dividend payments
               necessary to produce the indicated hypothetical ending index
               value, which reflects a deduction from the value of the Index
               at the end of each calendar quarter equal to 0.4375% of the
               then current Index value.

     The pretax annualized rate of return of the stocks underlying the Index
illustrated below is intended to reflect the return that might be earned by an
investor who seeks to replicate the Index return by trading in the actual
stocks underlying the Index and differs from the pretax annualized rate of
return on the MITTS Securities because of the percentage deducted from the
value of the Index each calendar quarter equal to 0.4375% of the then current
Index value. Investors seeking to replicate the Index return by trading in the
actual underlying stocks would not incur this periodic deduction although they
might incur commissions and other transaction-related costs.


<PAGE>


<TABLE>
<CAPTION>
                                                     Total                  Pretax            Pretax Annualized
                         Percentage Change          Amount           Annualized Rate of      Rate of Return of
Hypothetical Ending      Over the Starting         Payable at        Return on  the MITTS     Stock Underlying
   Index Value              Index Value             Maturity             Securities(1)           Index(1)(2)
   -----------              -----------             --------             -------------           -----------
    
<S>                          <C>                   <C>                     <C>                   <C>
          50                   -50%                 $ 12.40                 2.16%                 -5.09%  
          60                   -40%                 $ 12.40                 2.16%                 -3.31%  
          70                   -30%                 $ 12.40                 2.16%                 -1.80%  
          80                   -20%                 $ 12.40                 2.16%                 -0.47%  
          90                   -10%                 $ 12.40                 2.16%                  0.70%  
   
         100(3)                  0%                 $ 12.40                 2.16%                  1.75%  
    
          110                   10%                 $ 12.40                 2.16%                  2.71%  
          120                   20%                 $ 12.40                 2.16%                  3.59%  
          130                   30%                 $ 13.00                 2.64%                  4.41%  
          140                   40%                 $ 14.00                 3.39%                  5.16%  
          150                   50%                 $ 15.00                 4.10%                  5.87%  
          160                   60%                 $ 16.00                 4.76%                  6.53%  
          170                   70%                 $ 17.00                 5.38%                  7.15%  
          180                   80%                 $ 18.00                 5.97%                  7.74%  
          190                   90%                 $ 19.00                 6.52%                  8.30%  
          200                  100%                 $ 20.00                 7.05%                  8.84%  
          210                  110%                 $ 21.00                 7.56%                  9.35%  
          220                  120%                 $ 22.00                 8.04%                  9.83%  
          230                  130%                 $ 23.00                 8.50%                  10.30%  
          240                  140%                 $ 24.00                 8.94%                  10.74%  
          250                  150%                 $ 25.00                 9.37%                  11.17%  
          260                  160%                 $ 26.00                 9.78%                  11.58%  
          270                  170%                 $ 27.00                 10.17%                 11.98%  
          280                  180%                 $ 28.00                 10.56%                 12.37%  
          290                  190%                 $ 29.00                 10.93%                 12.74%  
          300                  200%                 $ 30.00                 11.28%                 13.10%  
          310                  210%                 $ 31.00                 11.63%                 13.44%  
          320                  220%                 $ 32.00                 11.97%                 13.78%  
          330                  230%                 $ 33.00                 12.29%                 14.11%  
          340                  240%                 $ 34.00                 12.61%                 14.43%  
          350                  250%                 $ 35.00                 12.92%                 14.74%  
          360                  260%                 $ 36.00                 13.22%                 15.04%  
          370                  270%                 $ 37.00                 13.51%                 15.33%  
          380                  280%                 $ 38.00                 13.80%                 15.62%  
          390                  290%                 $ 39.00                 14.07%                 15.90%  
          400                  300%                 $ 40.00                 14.34%                 16.17%  
</TABLE>


<PAGE>


- ---------
(1)  The annualized rates of return specified in the preceding table are
     calculated on a semiannual bond equivalent basis.

   
(2)  This rate of return assumes, in addition to the price changes and
     dividend payments described above:
     (a)   an initial investment of a fixed amount in the Top Ten Yield
         Stocks with the allocation of this amount reflecting an equal
         dollar-weighted portfolio of the stocks in the Index;
     (b)    a reconstruction of this portfolio investment on each Anniversary
         Date so as to be an equal-dollar weighted portfolio of the ten common
         stocks in the DJIA having the highest Dividend Yield on the second
         scheduled Index Business Day prior to each Anniversary Date,
     (c)    a compounded quarterly rate of return on the stocks which is
         greater than the compounded quarterly return on the Index by 0.4375%,
         the amount of the quarterly deduction applied to the Index, with
         dividends being reinvested on a quarterly basis
     (d)    no transaction fees or expenses;
     (e)    an investment term equal to the term of the securities; and 
     (f) a final Index value equal to the Ending Index Value. (3) The Starting
         Index Value.

     The above figures are for purposes of illustration only. The actual
Supplemental Redemption Amount received by investors and the pretax annualized
rate of return resulting therefrom will depend entirely on the actual Ending
Index Value determined by the calculation agent as provided in this
prospectus. Historical data regarding the Index is included in this prospectus
under "The Index--Historical Data on the Index".
    

Adjustments to the Index; Market Disruption Events

   
     If at any time the AMEX changes its method of calculating the Index, or
the Index's value changes in any material respect, or if the Index is in any
other way modified so that the Index does not, in the opinion of the
calculation agent, fairly represent the value of the Index had these changes
or modifications not been made, then, from and after that time, the
calculation agent shall, at the close of business in New York, New York, on
each date that the closing value with respect to the Ending Index Value is to
be calculated, make any adjustments as, in the good faith judgment of the
calculation agent, may be necessary in order to arrive at a calculation of a
value of a stock index comparable to the Index as if any changes or
modifications had not been made, and calculate the closing value with
reference to the Index, as adjusted. Accordingly, if the method of calculating
the Index is modified so that the value of the Index is a fraction or a
multiple of what it would have been if it had not been modified, for example,
due to a split in the Index, then the calculation agent shall adjust the Index
in order to arrive at a value of the Index as if it had not been modified, for
example, as if the split had not occurred.

     "Market Disruption Event" means either of the following events, as
determined by the calculation agent:

     (a)       the suspension or material limitation on trading for more than
          two hours of trading or during the period one-half hour prior to the
          close of trading, or

     (b)      the suspension or material limitation, in each case, for more
          than two hours of trading, whether by reason of movements in price
          otherwise exceeding levels permitted by the relevant exchange or
          otherwise, in

          (1)  futures contracts related to the Index, or options on futures
               contracts, which traded on any major U.S. exchange, or


<PAGE>


          (2)  Option contracts related to the Index which are traded on any
               major U.S. exchange.

     For the purposes of clause (a) above, any limitations on trading during
significant market fluctuations under New York Stock Exchange Rule 80A, or any
applicable rule or regulation enacted or promulgated by the NYSE or any other
self regulatory organization or the SEC of similar scope as determined by the
calculation agent, will be considered "material".

     In some circumstances, the duties of MLPF&S as calculation agent in
determining the existence of Market Disruption Events could conflict with the
interests of MLPF&S as a subsidiary of ML&Co.
    

Discontinuance of the Index

   
     If the AMEX discontinues publication of the Index and the AMEX or another
entity publishes a successor or substitute index that the calculation agent
determines, in its sole discretion, to be comparable to the Index (that index
being referred to as a "Successor Index"), then, upon the calculation agent's
notification of its determination to the Trustee, as defined below, and
ML&Co., the calculation agent will substitute the Successor Index as
calculated by the AMEX or other entity for the Index and calculate the Ending
Index Value as described above under "Payment at Maturity". Upon any selection
by the calculation agent of a Successor Index, ML&Co. shall cause notice
thereof to be given to Holders of the MITTS Securities.

     If the AMEX discontinues publication of the Index and a Successor Index
is not selected by the calculation agent or is no longer published on any of
the Calculation Days, the value to be substituted for the Index for any
Calculation Day used to calculate the Supplemental Redemption Amount at
maturity will be a value computed by the calculation agent for each
Calculation Day in accordance with the procedures last used to calculate the
Index prior to any discontinuance. If a Successor Index is selected or the
calculation agent calculates a value as a substitute for the Index as
described below, that Successor Index or value shall be substituted for the
Index for all purposes, including for purposes of determining whether a Market
Disruption Event exists.

     If the AMEX discontinues publication of the Index prior to the period
during which the Supplemental Redemption Amount is to be determined and the
calculation agent determines that no Successor Index is available at that
time, then on each Business Day until the earlier to occur of:

     (a)     the determination of the Ending Index Value, and

     (b)     a determination by the calculation agent that a Successor Index
             is available.

The calculation agent shall determine the value that would be used in
computing the Supplemental Redemption Amount as described in the preceding
paragraph as if that day were a Calculation Day. The calculation agent will
cause notice of each value to be published not less often than once each month
in The Wall Street Journal, or another newspaper of general circulation, (the
"WSJ"), and arrange for information with respect to these values to be made
available by telephone. Notwithstanding these alternative arrangements,
discontinuance of the publication of the Index may adversely affect trading in
the MITTS Securities.
    



Events of Default and Acceleration

   
     If an event of default with respect to any MITTS Securities has occurred
and is continuing, the amount payable to a beneficial owner of a MITTS
Security upon any acceleration permitted by the MITTS Securities, with respect
to each $10 principal amount per unit, will be equal to the principal amount
per unit and the Supplemental Redemption Amount, if any, calculated as though
the date of early repayment were the stated maturity date of the MITTS
Securities. See "- Payment at Maturity" in this prospectus. If a bankruptcy
proceeding is commenced in respect of ML&Co., the claim of the beneficial
owner of a MITTS Security may be limited, under Section 502(b)(2) of Title 11
of the United States Code, to the principal amount per unit of the MITTS
Security plus an additional amount of contingent interest calculated as though
the date of the commencement of the proceeding were the maturity date of the
MITTS Securities.


<PAGE>


     In case of default in payment of the MITTS Securities, whether at the
stated maturity or upon acceleration, from and after the maturity date the
MITTS Securities shall bear interest, payable upon demand of the beneficial
owners thereof, at the rate of 7.76% per annum, to the extent that payment of
any interest shall be legally enforceable, on the unpaid amount due and
payable on that date in accordance with the terms of the MITTS Securities to
the date payment of any amount has been made or duly provided for.

Global Securities

     Description of the Global Securities

     Beneficial owners of the MITTS Securities may not receive physical
delivery of the MITTS Securities nor may they be entitled to have the MITTS
Securities registered in their names. The MITTS Securities currently are
represented by one or more fully registered global securities. Each global
security was deposited with, or on behalf of, The Depository Trust Company or
DTC, together with any successor, (being a "depositary"), as depositary,
registered in the name of Cede & Co., DTC's partnership nominee. Unless and
until it is exchanged in whole or in part for MITTS Securities in definitive
form, no global security may be transferred except as a whole by the
depositary to a nominee of the depositary or by a nominee of the depositary to
the depositary or another nominee of the depositary or by the depositary or
any nominee to a successor of the depositary or a nominee of that successor.

     So long as DTC, or its nominee, is a registered owner of a global
security, DTC or its nominee, as the case may be, will be considered the sole
owner or holder of the MITTS Securities represented by a global security for
all purposes under the 1983 Indenture. Except as provided below, the
beneficial owners of the MITTS Securities represented by a global security
will not be entitled to have the MITTS Securities represented by the global
security registered in their names, will not receive or be entitled to receive
physical delivery of the MITTS Securities in definitive form and will not be
considered the owners or holders under the 1983 Indenture, including for
purposes of receiving any reports delivered by ML&Co. or the trustee under the
1983 Indenture. Accordingly, each person owning a beneficial interest in a
global security must rely on the procedures of DTC and, if that person is not
a participant of DTC on the procedures of the participant through which that
person owns its interest, to exercise any rights of a holder under the 1983
Indenture. ML&Co. understands that under existing industry practices, in the
event that ML&Co. requests any action of holders or that an owner of a
beneficial interest in a global security desires to give or take any action
which a holder is entitled to give or take under the 1983 Indenture, DTC would
authorize the participants holding the relevant beneficial interests to give
or take any action, and the participants would authorize beneficial owners
owning through those participants to give or take action or would otherwise
act upon the instructions of beneficial owners. Conveyance of notices and
other communications by DTC to participants, by participants to indirect
participants and by participants and indirect participants to beneficial
owners will be governed by arrangements among them, subject to any statutory
or regulatory requirements as may be in effect from time to time.

     DTC Procedures

     The following is based on information furnished by DTC:

     DTC is the securities depositary for the MITTS Securities. The MITTS
Securities were issued as fully registered securities registered in the name
of Cede & Co., DTC's partnership nominee. One or more fully registered global
securities were issued for the MITTS Securities in the aggregate principal
amount of the MITTS Securities, and were deposited with DTC.


<PAGE>


     DTC is a limited-purpose trust company organized under the New York
Banking Law, a "banking organization" within the meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing corporation"
within the meaning of the New York Uniform Commercial Code, and a "clearing
agency" registered under to the provisions of Section 17A of the Securities
and Exchange Act of 1934, as amended. DTC holds securities that its
participants deposit with DTC. DTC also facilitates the settlement among
participants of securities transactions, such as transfers and pledges, in
deposited securities through electronic computerized book-entry changes in
participants' accounts, thereby eliminating the need for physical movement of
securities certificates. Direct participants of DTC include securities brokers
and dealers, banks, trust companies, clearing corporations and other
organizations. DTC is owned by a number of its direct participants and by the
NYSE, the AMEX and the National Association of Securities Dealers, Inc. Access
to DTC's system is also available to others such as securities brokers and
dealers, banks and trust companies that clear through or maintain a custodial
relationship with a direct participant, either directly or indirectly. The
rules applicable to DTC and its participants are on file with the SEC.

     Purchases of MITTS Securities under DTC's system must be made by or
through direct participants, which will receive a credit for the MITTS
Securities on DTC's records. The ownership interest of each beneficial owner
is in turn to be recorded on the records of direct and indirect participants.
Beneficial owners will not receive written confirmation from DTC of their
purchase, but beneficial owners are expected to receive written confirmations
providing details of the transaction, as well as periodic statements of their
holdings, from the direct participants or indirect participants through which
the beneficial owner entered into the transaction. Transfers of ownership
interests in the MITTS Securities are to be accomplished by entries made on
the books of participants acting on behalf of beneficial owners.

     To facilitate subsequent transfers, all MITTS Securities deposited with
DTC are registered in the name of DTC's partnership nominee, Cede & Co. The
deposit of MITTS Securities with DTC and their registration in the name of
Cede & Co. effect no change in beneficial ownership. DTC has no knowledge of
the actual beneficial owners of the MITTS Securities; DTC's records reflect
only the identity of the direct participants to whose accounts the MITTS
Securities are credited, which may or may not be the beneficial owners. The
participants will remain responsible for keeping account of their holdings on
behalf of their customers.

     Conveyance of notices and other communications by DTC to direct
participants, by direct participants to indirect participants, and by direct
and indirect participants to beneficial owners will be governed by
arrangements among them, subject to any statutory or regulatory requirements
as may be in effect from time to time.

     Neither DTC nor Cede & Co. will consent or vote with respect to the MITTS
Securities. Under its usual procedures, DTC mails an omnibus proxy to ML&Co.
as soon as possible after the applicable record date. The omnibus proxy
assigns Cede & Co.'s consenting or voting rights to those direct participants
identified in a listing attached to the omnibus proxy to whose accounts the
MITTS Securities are credited on the record date identified in a listing
attached to the omnibus proxy.

     Principal, premium, if any, and/or interest, if any, payments on the
MITTS Securities will be made in immediately available funds to DTC. DTC's
practice is to credit direct participants' accounts on the applicable payment
date in accordance with their respective holdings shown on the depositary's
records unless DTC has reason to believe that it will not receive payment on
that date. Payments by participants to beneficial owners will be governed by
standing instructions and customary practices, as is the case with securities
held for the accounts of customers in bearer form or registered in "street
name", and will be the responsibility of the participant and not of DTC, the
Trustee or ML&Co., subject to any statutory or regulatory requirements as may
be in effect from time to time. Payment of principal, premium, if any, and/or
interest, if any, to DTC is the responsibility of ML&Co. or the trustee,
disbursement of payments to direct participants is the responsibility of DTC,
and disbursement of payments to the beneficial owners is the responsibility of
direct and indirect participants.


<PAGE>


     Exchange for Certificated Securities

     If:

          o         the depositary is at any time unwilling or unable to
               continue as depositary and a successor depositary is not
               appointed by ML&Co. within 60 days,

          o         ML&Co. executes and delivers to the trustee a company
               order to the effect that the global securities shall be
               exchangeable, or

          o         an Event of Default under the 1983 Indenture has occurred
               and is continuing with respect to the MITTS Securities,

the global securities will be exchangeable for MITTS Securities in definitive
form of like tenor and of an equal aggregate principal amount, in
denominations of $10 and integral multiples of $10. The definitive MITTS
Securities will be registered in the name or names as the depositary shall
instruct the trustee. It is expected that instructions may be based upon
directions received by the depositary from participants with respect to
ownership of beneficial interests in the global securities.

     In addition, ML&Co. may decide to discontinue use of the system of
book-entry transfers through the depositary. In that event, MITTS Securities
in definitive form will be printed and delivered.

     The information in this section concerning DTC and DTC's system has been
obtained from sources that ML&Co. believes to be reliable, but ML&Co. takes no
responsibility for its accuracy.
    

Same-Day Settlement and Payment

   
     All payments of principal and the Supplemental Redemption Amount, if any,
will be made by ML&Co. in immediately available funds so long as the MITTS
Securities are maintained in book-entry form.
    


<PAGE>


                                   THE INDEX

Top Ten Yield Index

   
     AMEX will calculate and disseminate the value of the Index on any Index
Business Day; the Index will equal the Top Ten Yield Portfolio Value plus the
Current Quarter Dividends (as defined below) as of that Index Business Day.
The Top Ten Yield Portfolio Value will equal the sum of the products of the
most recently available market price and the applicable Share Multiplier for
each Top Ten Yield Stock. The AMEX will generally calculate and disseminate
the value of the Index based on the most recently reported prices of the
stocks underlying the Index, as reported by the exchange or trading system on
which the underlying stocks are listed or traded, at approximately 15-second
intervals during the AMEX's business hours and the end of each Index Business
Day via the Consolidated Tape Association's Network B.  The Index is reported
on the AMEX and Bloomberg under the symbol "XMT" and on Reuters under the
symbol ".XMT".

     The "Dividend Yield" for each common stock is determined by the AMEX by
annualizing the last quarterly or semi-annual ordinary cash dividend for which
the ex-dividend date has occurred, excluding any extraordinary dividend as
determined by the AMEX in its sole discretion, and dividing the result by the
last available sale price for each stock on its primary exchange on the date
the Dividend Yield is to be determined.

     Annual Top Ten Yield Portfolio Reconstitution

     As of the close of business on each Anniversary Date, as defined below,
through the applicable Anniversary Date in 2005, the content of the Top Ten
Yield Portfolio shall be reconstituted to include the ten common stocks in the
DJIA having the highest Dividend Yield (the "New Stocks") on the second
scheduled Index Business Day prior to the Anniversary Date (the "Annual
Determination Date"), provided, however, that the AMEX will only add a stock
having characteristics as of the Annual Determination Date that will permit
the Index to remain within the criteria specified in the AMEX rules and within
the applicable rules of the Securities and Exchange Commission. These criteria
and rules will apply only on an Annual Determination Date to exclude a
proposed New Stock. If a proposed New Stock does not meet these criteria or
rules, the AMEX will replace it with the common stock in the DJIA with the
next highest Dividend Yield which does meet these criteria and rules. These
criteria currently provide, among other things:
    

     o  that each component stock must have a minimum market value of at least
        $75 million, except that up to 10% of the component securities in the
        Index may have a market value of $50 million;

   
     o  that each component stock must have an average monthly trading volume
        in the preceding six months of not less than 1,000,000 shares, except
        that up to 10% of the component stocks in the Index may have an
        average monthly trading volume of 500,000 shares or more in the last
        six months;

     o  90% of the Index's numerical Index value and at least 80% of the total
        number of component stocks will meet the then current criteria for
        standardized option trading set forth in the rules of the AMEX; and

     o  all component stocks will either be listed on the AMEX, the NYSE, or
        traded through the facilities of the National Association of
        Securities Dealers Automated Quotation System and reported as National
        Market System securities.

     The AMEX will determine the Share Multiplier for each New Stock and will
indicate the number of shares of each New Stock, given the closing market
price of the New Stock on the Anniversary Date, required to be included in the
calculation of the Top Ten Yield Portfolio Value so that each New Stock
represents approximately an equal percentage of a value equal to the Index in
effect at the close of business on the Anniversary Date. As an example, if the
Index in effect at the close of business on an Anniversary Date equaled 200,
then each of the ten New Stocks relating to the Anniversary Date would be
allocated a portion of the value of the Index equal to 20 and if the closing
market price of one the New Stock on the Anniversary Date was 40, the
applicable Share Multiplier would be 0.5. If the Index equaled 80, then each
of the ten New Stocks would be allocated a portion of the value of the Index
equal to 8 and if the closing market price of one New Stock on the Anniversary
Date was 40, the applicable Share Multiplier would be 0.2. The last
Anniversary Date on which this reconstitution will occur will be the
Anniversary Date in 2005, which will be approximately one year prior to the
maturity date of the MITTS Securities. "Anniversary Date" shall mean the
anniversary date of the date the MITTS Securities are initially issued;
provided, however, that if this date is not an Index Business Day or a Market
Disruption Event occurs on that date, then the Anniversary Date for that year
shall mean the immediately succeeding Index Business Day on which a Market
Disruption Event does not occur. "Top Ten Yield Stock" at any time shall mean
the stocks contained in the Top Ten Yield Portfolio at that time.
    


<PAGE>


Dow Jones Industrial Average

   
     The DJIA is comprised of 30 common stocks chosen by the editors of the
WSJ as representative of the broad market of American industry generally. The
companies are major factors in their industries and their stocks are typically
widely held by individuals and institutional investors. Changes in the
composition of the DJIA are made entirely by the editors of the WSJ without
consultation with the companies, the stock exchange or any official agency or
ML&Co. For the sake of continuity, changes are made infrequently. Most
substitutions have result from mergers, but from time to time, changes may be
made to achieve a better representation. The components of the DJIA may be
changed at any time for any reason. Dow Jones & Company, Inc., publisher of
the WSJ, is not affiliated with ML&Co, has not participated in any way in the
creation of the MITTS Securities or in the selection of stocks to be included
in the Top Ten Yield Portfolio and has not reviewed or approved any
information included in this prospectus.
    

     The first DJIA, consisting of 12 stocks, was published in the WSJ in
1896. The list grew to 20 stocks in 1916 and to 30 stocks on October 1, 1928.
For two periods of 17 consecutive years each, there were no changes to the
list; March 15, 1939-July 2, 1956 and June 2, 1959-August 8, 1976.

   
     ML&Co or its affiliates may presently or from time to time engage in
business with one or more of the issuers of the Top Ten Yield Portfolio
stocks, including extending loans to, or making equity investments in, these
issuers or providing advisory services to these issuers, including merger and
acquisition advisory services. In the course of this business, ML&Co or its
affiliates may acquire non-public information with respect to these issuers
and, in addition, one or more affiliates of ML&Co may publish research reports
with respect to these issuers. ML&Co does not make any representation to any
purchaser of MITTS Securities with respect to any matters whatsoever relating
to these issuers. Any prospective purchaser of MITTS Securities should
undertake an independent investigation of the issuers of the Top Ten Yield
Portfolio stocks as in its judgment is appropriate to make an informed
decision with respect to an investment in the MITTS Securities. The
composition of the Index does not reflect any investment or sell
recommendations of ML&Co or its affiliates.
    

Cash Dividends

   Current Quarter Dividend

   
     As described above, the value of the Index will include an amount
reflecting Current Quarter Dividends. "Current Quarter Dividends" for any day
will be determined by the AMEX and will equal the sum of the Dividend Payment
for each Top Ten Yield Stock. The "Dividend Payment" with respect to a Top Ten
Yield Stock for any day will equal the sum of the products of:

     o  each dividend paid by the issuer of that Top Ten Yield Stock on one
        share of that Top Ten Yield Stock during the Current Quarter, not
        including any reinvestment thereof, multiplied by

     o  the Share Multiplier applicable to that Top Ten Yield Stock at the
        time each dividend is paid. A dividend will be considered paid by an
        issuer at the open of business on the ex-dividend date, generally, the
        trading day on which the market price of the stock reflects the
        payment of the dividend. "Current Quarter" shall mean the period from
        and including August 9, 1996 through December 31, 1996, and after
        December 31, 1996, from and including the first day of the then
        current calendar quarter containing the day on which the applicable
        Dividend Payment is being determined to and including the day on which
        the applicable Dividend Payment is being determined.
    


<PAGE>


   Quarterly Stock Dividend

   
     As of the first day of the start of each calendar quarter, the AMEX will
allocate the Current Quarter Dividends as of the end of the immediately
preceding calendar quarter to each then outstanding Top Ten Yield Stock. The
amount of the Current Quarter Dividends allocated to each Top Ten Yield Stock
will equal the percentage of the value of that Top Ten Yield Stock contained
in the Top Ten Yield Portfolio relative to the value of the entire Top Ten
Yield Portfolio based on the closing market price on the last Index Business
Day in the immediately preceding calendar quarter. The AMEX will increase the
Share Multiplier of each outstanding Top Ten Yield Stock to reflect the number
of shares, or portion of a share, that the amount of the Current Quarter
Dividend allocated to that Top Ten Yield Stock can purchase of each Top Ten
Yield Stock based on the closing market price on the last Index Business Day
in the immediately preceding calendar quarter.
    

   Quarterly Deduction

   
     At the end of each calendar quarter, the Index will be reduced by a value
equal to 0.4375% of the then current Index, provided that:

     o  there will be no deduction at the end of the calendar quarter ending
        in September 1996 and the deduction at the end of the calendar quarter
        ending in December 1996 will be increased to reflect the quarterly
        rate of 0.4375% prorated for the period from the date of the issuance
        of the MITTS Securities through the end of the calendar quarter in
        December 1996, and

     o  the Index will be reduced at the close of business on July 31, 2006 by
        a value equal to 0.1507% of the closing value of the Index on that
        date. With respect to the period ending December 31, 1996, the
        quarterly rate of 0.4375% will be prorated by multiplying it by a
        factor equal to the result of dividing the number of days in the
        period from the date the MITTS Securities are issued through the
        calendar quarter ending in December 1996 by 90
    

Adjustments to the Share Multiplier and Top Ten Yield Portfolio

     The Share Multiplier with respect to any Top Ten Yield Stock and the Top
Ten Yield Portfolio will be adjusted as follows:

   
     1. If a Top Ten Yield Stock is subject to a stock split or reverse stock
split, then once the split has become effective, the Share Multiplier relating
to that Top Ten Yield Stock will be adjusted to equal the product of the
number of shares issued with respect to one share of that Top Ten Yield Stock
and the prior multiplier.

     2. If a Top Ten Yield Stock is subject to a stock dividend, defined as an
issuance of additional shares of the Top Ten Yield Stock, that is given
equally to all holders of shares of the issuer of that Top Ten Yield Stock,
then once the dividend has become effective and that Top Ten Yield Stock is
trading ex-dividend, AMEX will adjust the Share Multiplier so that the new
Share Multiplier shall equal the former Share Multiplier plus the product of
the number of shares of that Top Ten Yield Stock issued with respect to one
share of that Top Ten Yield Stock and the prior multiplier.

     3. If the issuer of a Top Ten Yield Stock is being liquidated or is
subject to a proceeding under any applicable bankruptcy, insolvency or other
similar law, that Top Ten Yield Stock will continue to be included in the Top
Ten Yield Portfolio so long as a Market Price for that Top Ten Yield Stock is
available. If a market price is no longer available for a Top Ten Yield Stock
for whatever reason, including the liquidation of the issuer of Top Ten Yield
Stock or the subjection of the issuer of that Top Ten Yield Stock to a
proceeding under any applicable bankruptcy, insolvency or other similar law,
then the value of that Top Ten Yield Stock will equal zero in connection with
calculating the Top Ten Yield Portfolio Value for so long as no market price
is available, and no attempt will be made to immediately find a replacement
stock or increase the value of the Top Ten Yield Portfolio to compensate for
the deletion of that Top Ten Yield Stock. If a market price is no longer
available for a Top Ten Yield Stock as described above, the Top Ten Yield
Portfolio Value will be computed based on the remaining Top Ten Yield Stocks
for which market prices are available and no new stock will be added to the
Top Ten Yield Portfolio until the annual reconstitution of the Top Ten Yield
Portfolio. As a result, there may be periods during which the Top Ten Yield
Portfolio contains fewer than ten Top Ten Yield Stocks.

     4. If the issuer of a Top Ten Yield Stock has been subject to a merger or
consolidation and is not the surviving entity or is nationalized, then a value
for that Top Ten Yield Stock will be determined at the time the issuer is
merged or consolidated or nationalized and will equal the last available
market price for that Top Ten Yield Stock and that value will be constant
until the Top Ten Yield Portfolio is reconstituted. At that time, no
adjustment will be made to the Share Multiplier of that Top Ten Yield Stock.

     5. If the issuer of a Top Ten Yield Stock issues to all of its
shareholders equity securities that are publicly traded of an issuer other
than the issuer of the Top Ten Yield Stock, then the new equity securities
will be added to the Top Ten Yield Portfolio as a new Top Ten Yield Stock. The
Share Multiplier for that new Top Ten Yield Stock will equal the product of
the original Share Multiplier with respect to the Top Ten Yield Stock for
which the new Top Ten Yield Stock is being issued (the "Original Top Ten Yield
Stock") and the number of shares of the new Top Ten Yield Stock issued with
respect to one share of the Original Top Ten Yield Stock.

     No adjustments of any Share Multiplier of a Top Ten Yield Stock will be
required unless the adjustment would require a change of at least 1% in the
Share Multiplier then in effect. The Share Multiplier resulting from any of
the adjustments specified above will be rounded to the nearest ten-thousandth
with five hundred-thousandths being rounded upward.

     The AMEX expects that no adjustments to the Share Multiplier of any Top
Ten Yield Stock or to the Top Ten Yield Portfolio will be made other than
those specified above, however, the AMEX may at its discretion make
adjustments to maintain the value of the Index if events would otherwise alter
the value of the Index despite no change in the market prices of the Top Ten
Yield Stocks.
    

Historical Performance of the Index

   
     You should review the historical performance of the Index. The historical
performance of the Index should not be taken as an indication of future
performance, and no assurance can be given that the Index will increase
sufficiently to cause the beneficial owners of the MITTS Securities to receive
an amount in excess of the principal amount at the maturity of the MITTS
Securities.
    


<PAGE>


                                  OTHER TERMS

   
     ML&Co. issued the MITTS Securities as a series of senior debt securities
under the 1983 Indenture, dated as of April 1, 1983, as amended and restated,
between ML&Co. and The Chase Manhattan Bank, as trustee. A copy of the 1983
Indenture is filed as an exhibit to the registration statement relating to the
MITTS Securities of which this prospectus is a part. The following summaries
of the material provisions of the 1983 Indenture are not complete and are
subject to, and qualified in their entirety by reference to, all provisions of
the 1983 Indenture, including the definitions of terms in the 1983 Indenture.

     ML&Co. may issue series of senior debt securities from time to time under
the 1983 Indenture, without limitation as to aggregate principal amount, in
one or more series and upon terms as ML&Co. may establish under the provisions
of the 1983 Indenture.

     The 1983 Indenture and the MITTS Securities are governed by and construed
in accordance with the laws of the State of New York.

     ML&Co. may issue senior debt securities with terms different from those
of senior debt securities previously issued, and issue additional senior debt
securities of a previously issued series of senior debt securities.

     The senior debt securities are unsecured and rank equally with all other
unsecured and unsubordinated indebtedness of ML&Co. However, because ML&Co. is
a holding company, the rights of ML&Co. and its creditors, including the
holders of senior debt securities, to participate in any distribution of the
assets of any subsidiary upon its liquidation or reorganization or otherwise
are necessarily subject to the prior claims of creditors of the subsidiary,
except to the extent that a bankruptcy court may recognize claims of ML&Co.
itself as a creditor of the subsidiary.  In addition, dividends, loans and
advances from certain subsidiaries, including MLPF&S, to ML&Co. are restricted
by net capital requirements under the Exchange Act, and under rules of
exchanges and other regulatory bodies.
    

Limitations Upon Liens

   
     ML&Co. may not, and may not permit any majority-owned subsidiary to,
create, assume, incur or permit to exist any indebtedness for borrowed money
secured by a pledge, lien or other encumbrance, other than those liens
specifically permitted by the 1983 Indenture, on the Voting Stock owned
directly or indirectly by ML&Co. of any majority-owned subsidiary, other than
a majority-owned subsidiary which, at the time of the incurrence of the
secured indebtedness, has a net worth of less than $3,000,000, unless the
outstanding senior debt securities are secured equally and ratably with the
secured indebtedness.

     "Voting Stock" is defined in the 1983 Indenture as the stock of the class
or classes having general voting power under ordinary circumstances to elect
at least a majority of the board of directors, managers or trustees of a
corporation provided that, for the purposes of the 1983 Indenture, stock that
carries only the right to vote conditionally on the occurrence of an event is
not considered voting stock whether or not the event has happened.
    

Limitation on Disposition of Voting Stock of, and Merger and Sale of Assets
by, MLPF&S

   
     ML&Co. may not sell, transfer or otherwise dispose of any Voting Stock of
MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of its
Voting Stock, unless, after giving effect to any transaction, MLPF&S remains a
Controlled Subsidiary.

     "Controlled Subsidiary" is defined in the 1983 Indenture to mean a
corporation more than 80% of the outstanding shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

     In addition, ML&Co. may not permit MLPF&S to:


<PAGE>


     o  merge or consolidate, unless the surviving company is a Controlled
        Subsidiary, or
    

     o  convey or transfer its properties and assets substantially as an
        entirety, except to one or more Controlled Subsidiaries.

Merger and Consolidation

   
     ML&Co. may consolidate or merge with or into any other corporation and
ML&Co. may sell, lease or convey all or substantially all of its assets to any
corporation, provided that:

     o  the resulting corporation, if other than ML&Co., is a corporation
        organized and existing under the laws of the United States of America
        or any U.S. state and assumes all of ML&Co.'s obligations to:

        o   pay any amounts due and payable or deliverable with respect to all
            the senior debt securities; and

        o   perform and observe all of ML&Co.'s obligations under the 1983
            Indenture, and

     o  ML&Co. or the successor corporation, as the case may be, is not,
        immediately after any consolidation or merger, in default under the
        1983 Indenture.
    

Modification and Waiver

   
     ML&Co. and the trustee may modify and amend the 1983 Indenture with the
consent of holders of at least 66 2/3% in principal amount of each outstanding
series of senior debt securities affected. However, without the consent of
each holder of any outstanding senior debt security affected, no amendment or
modification to the 1983 Indenture may:

     o  change the stated maturity date of the principal of, or any
        installment of interest or Additional Amounts payable on, any senior
        debt security or any premium payable on redemption, or change the
        redemption price;

     o  reduce the principal amount of, or the interest or Additional Amounts
        payable on, any senior debt security or reduce the amount of principal
        which could be declared due and payable before the stated maturity
        date;

     o  change the place or currency of any payment of principal or any
        premium, interest or Additional Amounts payable on any senior debt
        security;

     o  impair the right to institute suit for the enforcement of any payment
        on or with respect to any senior debt security;

     o  reduce the percentage in principal amount of the outstanding senior
        debt securities of any series, the consent of whose holders is
        required to modify or amend the 1983 Indenture; or

     o  modify the foregoing requirements or reduce the percentage of
        outstanding senior debt securities necessary to waive any past default
        to less than a majority.

     No modification or amendment of ML&Co.'s Subordinated Indenture or any
Subsequent Indenture for subordinated debt securities may adversely affect the
rights of any holder of ML&Co.'s senior indebtedness without the consent of
each holder affected. The holders of at least a majority in principal amount
of outstanding senior debt securities of any series may, with respect to that
series, waive past defaults under the 1983 Indenture and waive compliance by
ML&Co. with provisions in the 1983 Indenture, except as described under
"--Events of Default".


<PAGE>


Events of Default

     Each of the following will be Events of Default with respect to senior
debt securities of any series:

     o  default in the payment of any interest or Additional Amounts payable
        when due and continuing for 30 days;

     o  default in the payment of any principal or premium when due;

     o  default in the deposit of any sinking fund payment, when due;

     o  default in the performance of any other obligation of ML&Co. contained
        in the 1983 Indenture for the benefit of that series or in the senior
        debt securities of that series, continuing for 60 days after written
        notice as provided in the 1983 Indenture;

     o  specified events in bankruptcy, insolvency or reorganization of
        ML&Co.; and

     o  any other Event of Default provided with respect to senior debt
        securities of that series which are not inconsistent with the 1983
        Indenture.

If an Event of Default occurs and is continuing for any series of senior debt
securities, other than as a result of the bankruptcy, insolvency or
reorganization of ML&Co., the trustee or the holders of at least 25% in
principal amount of the outstanding senior debt securities of that series may
declare all amounts, or any lesser amount provided for in the senior debt
securities, due and payable or deliverable immediately. At any time after a
declaration of acceleration has been made with respect to senior debt
securities of any series but before the trustee has obtained a judgment or
decree for payment of money, the holders of a majority in principal amount of
the outstanding senior debt securities of that series may rescind any
declaration of acceleration and its consequences, if all payments due, other
than those due as a result of acceleration, have been made and all Events of
Default have been remedied or waived.

     The holders of a majority in principal amount or aggregate issue price of
the outstanding senior debt securities of that series may waive any Event of
Default with respect to that series, except a default:

     o  in the payment of any amounts due and payable or deliverable under the
        debt securities of that series; or

     o  in respect of an obligation or provision of the 1983 Indenture which
        cannot be modified under the terms of that Indenture without the
        consent of each holder of each outstanding security of each series of
        senior debt securities affected.

     The holders of a majority in principal amount of the outstanding senior
debt securities of a series may direct the time, method and place of
conducting any proceeding for any remedy available to the trustee or
exercising any trust or power conferred on the trustee with respect to those
senior debt securities, provided that any direction shall not be in conflict
with any rule of law or the 1983 Indenture. Before proceeding to exercise any
right or power under the 1983 Indenture at the direction of the holders, the
trustee shall be entitled to receive from the holders reasonable security or
indemnification against the costs, expenses and liabilities which might be
incurred by it in complying with any direction.

     The MITTS Securities and other series of senior debt securities issued
under the 1983 Indenture do not have the benefit of any cross-default
provisions with other indebtedness of ML&Co.

     ML&Co. is required to furnish to the trustee annually a statement as to
the fulfillment by ML&Co. of all of its obligations under the 1983 Indenture.


<PAGE>


                      WHERE YOU CAN FIND MORE INFORMATION

     We file reports, proxy statements and other information with the SEC. Our
SEC filings are also available over the Internet at the SEC's web site at
http://www.sec.gov. You may also read and copy any document we file by
visiting the SEC's public reference rooms in Washington, D.C., New York, New
York, and Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further
information about the public reference rooms. You may also inspect our SEC
reports and other information at the New York Stock Exchange, Inc., 20 Broad
Street, New York, New York 10005.

     We have filed a registration statement on Form S-3 with the SEC covering
the MITTS Securities and other securities. For further information on ML&Co.
and the MITTS Securities, you should refer to our registration statement and
its exhibits. This prospectus summarizes material provisions of contracts and
other documents that we refer you to. Because the prospectus may not contain
all the information that you may find important, you should review the full
text of these documents. We have included copies of these documents as
exhibits to our registration statement of which this prospectus is a part.


               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

     The SEC allows us to incorporate by reference the information we file
with them, which means:

     o  incorporated documents are considered part of the prospectus;

     o  we can disclose important information to you by referring you to those
        documents; and

     o  information that we file with the SEC will automatically update and
        supersede this incorporated information.

     We incorporate by reference the documents listed below which were filed
with the SEC under the Exchange Act:

     o  annual report on Form 10-K for the year ended December 25, 1998; and

     o  current reports on Form 8-K dated December 28, 1998, January 19, 1999,
        February 17, 1999, February 18, 1999, February 22, 1999, February 23,
        1999 and March 26, 1999.

     We also incorporate by reference each of the following documents that we
will file with the SEC after the date of this prospectus until this offering
is completed or after the date of this initial registration statement and
before the effectiveness of the registration statement:

     o  reports filed under Sections 13(a) and (c) of the Exchange Act;

     o  definitive proxy or information statements filed under Section 14 of
        the Exchange Act in connection with any subsequent stockholders'
        meeting; and

     o  any reports filed under Section 15(d) of the Exchange Act.

     You should rely only on information contained or incorporated by
reference in this prospectus. We have not, and MLPF&S has not, authorized any
other person to provide you with different information. If anyone provides you
with different or inconsistent information, you should not rely on it. We are
not, and MLPF&S is not, making an offer to sell these securities in any
jurisdiction where the offer or sale is not permitted.


<PAGE>


     You should assume that the information appearing in this prospectus is
accurate as of the date of this prospectus only. Our business, financial
condition and results of operations may have changed since that date.

     You may request a copy of any filings referred to above (excluding
exhibits), at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan, Jr., Corporate Secretary's Office, Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.


                             PLAN OF DISTRIBUTION

     This prospectus has been prepared in connection with secondary sales of
the MITTS Securities and is to be used by MLPF&S when making offers and sales
related to market-making transactions in the MITTS Securities.

     MLPF&S may act as principal or agent in these market-making transactions.

     The MITTS Securities may be offered on the AMEX or off the exchange in
negotiated transactions or otherwise.

     The distribution of the MITTS Securities will conform to the requirements
set forth in the applicable sections of Rule 2720 of the Conduct Rules of the
NASD.
    


                                    EXPERTS

   
     The consolidated financial statements and the related financial statement
schedule incorporated in this prospectus by reference from the Annual Report on
Form 10-K of Merrill Lynch & Co., Inc. and subsidiaries have been audited by
Deloitte & Touche LLP, independent auditors, as stated in their reports (which
express an unqualified opinion and which report on the consolidated financial
statements includes an explanatory paragraph for the change in accounting method
for certain internal-use software development costs), which are incorporated
herein by reference, and have been so incorporated in reliance upon the reports
of such firm given upon their authority as experts in accounting and auditing.
    
<PAGE>
   
The information in this prospectus is not complete and may be changed. We may
not sell these securities until the registration statement filed with the
Securities and Exchange Commission is effective. This Prospectus is not an
offer to sell these securities and it is not soliciting an offer to buy these
securities in any state where the offer or sale is not permitted.

    



                             Subject to Completion
   
                  Preliminary Prospectus dated March 29, 1999

 PROSPECTUS
    

                           Merrill Lynch & Co., Inc.
          Stock Market Annual Reset Term(SM) Notes due December 31, 1999
                                   (Series A)
                                "SMART Notes(SM)"

   
     This prospectus is to be used by Merrill Lynch & Co., Merrill Lynch,
Pierce, Fenner & Smith Incorporated, our wholly-owned subsidiary, when making
offers and sales related to market-making transactions in the SMART Notes.

     The SMART Notes:

     o    100% principal protection at maturity 
     o    Interest payment on each June 30 and December 30
     o    We will pay interest on the SMART Notes at a rate equal to the
          product of 65% and the percentage increase, if any, in the S&P MidCap
          400 Composite Stock Price Index.
     o    For each $1,000 principal amount of the SMART Notes that you own, on
          the maturity date, you will receive not less than $30 and not more
          than $100
     o    The SMART Notes are listed on the New York Stock Exchange under the
          symbol "MERIQ99"


                  Investing in the SMART Notes involves risks.
                    See "Risk Factors" beginning on page 3.
    

         Neither the Securities and Exchange Commission nor any state
securities commission has approved or disapproved of these securities or
determined if this prospectus is truthful or complete. Any representation to
the contrary is a criminal offense.

   
                             ---------------------
    
                              Merrill Lynch & Co.
                             ---------------------

               The date of this prospectus is ___________, 199_.

   
"SMART Notes" and "Stock Market Annual Reset Term" are registered service
marks of Merrill Lynch & Co., Inc.
    


<PAGE>

   
                               TABLE OF CONTENTS


                                                                         Page

RISK FACTORS.................................................................3

MERRILL LYNCH & CO., INC.....................................................6

RATIO OF EARNINGS TO FIXED CHARGES...........................................7

DESCRIPTION OF THE SMART NOTES...............................................8

THE STANDARD & POOR'S MIDCAP 400 COMPOSITE STOCK PRICE INDEX................15

OTHER TERMS.................................................................17

WHERE YOU CAN FIND MORE INFORMATION.........................................21
    

INCORPORATION OF INFORMATION WE FILE WITH THE SEC...........................22

   
PLAN OF DISTRIBUTION........................................................22

EXPERTS.....................................................................23
    





<PAGE>


   
                                  RISK FACTORS

You may not earn a return on your investment.

     If the closing value of the S&P MidCap 400 Composite Stock Price Index
applicable to a December payment date as described in this prospectus does not
exceed the starting value of the index applicable to that December payment date
as described in this prospectus by more than approximately 4.62%, you will
receive only $30 for each $1,000 principal amount of your SMART Notes on that
December payment date. This will be true even if at some point during the time
the calculation agent determines the interest payable on the SMART Notes for
each December payment date, the value of the S&P MidCap 400 Composite Stock
Price Index for that year exceeded the starting value of the S&P MidCap 400
Stock Price Index for that year by more than 4.62%. The amount we will pay you
annually on the SMART Notes is limited to the product of 65% and the percentage
increase in S&P MidCap Composite Stock Price Index during the period between
the date of the determination of the starting value of the index for that year
and the date of the determination of the applicable closing value of the index
for that year, and in no event will that amount exceed only $100 for each
$1,000 principal amount of your SMART Notes. If the closing value of the index
for a December payment date exceeds the starting value for that December
payment date by more than approximately 15.38%, you would receive no more than
$100 for each $1,000 principal amount of your SMART Notes for that payment
period.

     You will receive no less than the $30 for each $1,000 principal amount of
your SMART Notes, and we will repay you 100% of the principal amount of the
SMART Notes at maturity. Therefore, the amount that we pay you at maturity may
be less than the return you could earn on other investments. Your yield may be
less than the yield you would earn if you bought a senior non-callable debt
security of Merrill Lynch & Co., Inc. with the same maturity date. The payment
of additional amounts on the SMART Notes is subject to the conditions described
under "Description of Notes--Interest Payments". Your investment may not
reflect the full opportunity cost to you when you take into account factors
that affect the time value of money.

     The amount payable on the SMART Notes based on the S&P MidCap 400
Composite Stock Price Index will not produce the same return as if you
purchased the stocks underlying the S&P MidCap 400 Composite Stock Price Index
and held them for a similar period because of the following:

     o    the S&P MidCap 400 Composite Stock Price Index does not reflect the
          payment of dividends on the stocks underlying the index,

     o    the annual amount we will pay you on the SMART Notes reflects only
          the change in the S&P MidCap 400 Composite Stock Price Index for the
          period between the determination of the starting value and the
          closing value of the S&P Midcap 400 Composite Stock Price Index
          applicable to each December payment date, and

     o    the annual amount we will pay you is limited to 65% of the percentage
          increase, if any, in the S&P MidCap Composite Stock Price 400 Index
          during any relevant period, but will not be less than $30 per $1,000
          principal amount of the SMART Notes or more than $100 per $1,000
          principal amount of the SMART Notes.

There may be an uncertain trading market for the SMART Notes in the future

     The SMART Notes are listed on the New York Stock Exchange under the symbol
"MERIQ 99". We expect that the secondary market for the SMART Notes, including
prices in that market, will likely be affected by our creditworthiness and by a
number of other factors. It is possible to view the SMART Notes as the economic
equivalent of a debt obligation plus a series of cash settlement options;
however, the SMART Notes may trade in the secondary market at a discount from
the aggregate value of these economic components, if these economic components
were valued and capable of being traded separately.

     The trading values of the SMART Notes may be affected by a number of
interrelated factors, including those listed below. The following is the
expected theoretical effect on the trading value of the SMART Notes of each of
the factors listed below. The following discussion of each separate factor
generally assumes that all other factors are held constant, although the actual
interrelationship between some of these factors is complex.

     o    Relative Level of the S&P MidCap 400 Index. We expect that the
          trading value of the SMART Notes will depend significantly on the
          extent of the excess of the expected average of the closing value of
          the S&P MidCap Composite Stock Price Index for a calendar year over
          the closing value of the S&P MidCap 400 Composite Stock Price Index
          on the last business day of the preceding calendar year. If, however,
          you sell your SMART Notes at a time this excess exists, the sale
          price may nevertheless be at a discount from the amount expected to
          be payable if this excess were to prevail until the next December
          payment date. Furthermore, the price at which you will be able to
          sell SMART Notes before a December payment date may be at a discount,
          which could be substantial, from the principal amount of your SMART
          Notes, if, at that time, the S&P MidCap 400 Composite Stock Price
          Index is below, equal to or not sufficiently above the closing value
          of the S&P MidCap 400 Composite Stock Price Index on the last
          business day of the immediately preceding calendar year before that
          December payment date. The value of the SMART Notes may also be
          affected by the fact that the maximum interest payment for any year
          is $100 for each $1,000 principal amount of the SMART Notes.

     o    Volatility of the S&P MidCap 400 Composite Stock Price Index. If the
          volatility of S&P MidCap 400 Composite Stock Price Index increases,
          we expect the trading value of the SMART Notes to increase. If the
          volatility of the S&P MidCap 400 Composite Stock Price Index
          decreases, we expect the trading value of the SMART Notes to
          decrease.

     o    U.S. Interest Rates. In general, if U.S. interest rates increase, we
          expect the value of the SMART Notes to decrease. If U.S. interest
          rates decrease, we expect the value of the Notes to increase.
          Interest rates may also affect the U.S. economy, and, in turn, the
          level of the S&P MidCap 400 Composite Stock Price Index. Rising
          interest rates may lower the level of the S&P MidCap 400 Composite
          Stock Price Index and, thus, the value of the SMART Notes. Falling
          interest rates may increase the level of the S&P MidCap 400 Composite
          Stock Price Index and, thus, may increase the value of the SMART
          Notes.

     o    Time Remaining to December Payment Dates. We anticipate that before
          each December payment date, the SMART Notes may trade at a value
          above that which may be inferred from the level of U.S. interest
          rates and the S&P MidCap 400 Composite Stock Price Index. This
          difference will reflect a "time premium" due to expectations
          concerning the level of the S&P MidCap 400 Composite Stock Price
          Index during the period before each December payment date. As the
          time remaining to each December payment date decreases, however, this
          time premium may decrease, thus decreasing the trading value of the
          SMART Notes.

     o    Time Remaining to Maturity. As the number of remaining December
          payment dates decreases, the cumulative value of all the annual
          rights to receive an amount that reflects participation in the
          payments in excess of the minimum annual interest payment of $30 per
          $1,000 principal amount will decrease, thus decreasing the value of
          the SMART Notes. Furthermore, as the time to maturity decreases, the
          value of the right to receive the Minimum Annual Payment and the
          principal amount is expected to increase, thus increasing the value
          of the Note.

     o    Dividend Rates. A number of complex relationships between the
          relative values of the SMART Notes and dividend rates are likely to
          exist. If dividend rates on the stocks comprising the S&P MidCap 400
          Composite Stock Price Index increase, the value of the annual right
          to receive an amount that reflects participation in the appreciation
          of the S&P MidCap 400 Index above the Starting Annual Value is
          expected to decrease, and consequently we expect the value of the
          SMART Notes to decrease. Conversely, if dividend rates on the stocks
          comprising the S&P MidCap 400 Composite Stock Price Index decrease,
          the value of the annual right to receive this amount is expected to
          increase and, therefore, the value of the SMART Notes is expected to
          increase. In general, however, rising U.S. corporate dividend rates
          may increase the S&P MidCap 400 Composite Stock Price Index and, in
          turn, increase the value of the SMART Notes. Conversely, falling U.S.
          dividend rates may decrease the S&P MidCap 400 Composite Stock Price
          Index and, in turn, decrease the value of the SMART Notes.


Amounts payable on the MITTS Securities may be limited by state law

     The indenture under which the SMART Notes are issued is governed by New
York State law. New York has usury laws that limit the amount of interest that
can be charged and paid on loans, which includes debt securities like the SMART
Notes. Under present New York law, the maximum rate of interest is 25% per
annum on a simple interest basis. This limit may not apply to debt securities
in which $2,500,000 or more has been invested.

     While we believe that New York law would be given effect by a state or
Federal court sitting outside of New York, many other states also have laws
that regulate the amount of interest that may be charged to and paid by a
borrower. We will promise, for the benefit of the holders of the SMART Notes,
to the extent permitted by law, not to voluntarily claim the benefits of any
laws concerning usurious rates of interest.
    

Other Considerations

   
     We suggest that you should reach an investment decision only after
carefully considering the suitability of the SMART Notes in the light of your
particular circumstances.

     You should also consider the tax consequences of investing in the SMART
Notes and should consult your tax adviser.
    



<PAGE>


   
                           MERRILL LYNCH & CO., INC.

     We are a holding company that, through our U.S. and non-U.S. subsidiaries
and affiliates such as Merrill Lynch, Pierce, Fenner & Smith Incorporated,
Merrill Lynch Government Securities Inc., Merrill Lynch Capital Services, Inc.,
Merrill Lynch International, Merrill Lynch Capital Markets Bank Ltd., Merrill
Lynch Asset Management L.P. and Merrill Lynch Mercury Asset Management,
provides investment, financing, advisory, insurance, and related products on a
global basis, including:

     o    securities brokerage, trading and underwriting;

     o    investment banking, strategic services, including mergers and
          acquisitions and other corporate finance advisory activities;

     o    asset management and other investment advisory and recordkeeping
          services;

     o    trading and brokerage of swaps, options, forwards, futures and other
          derivatives;

     o    securities clearance services;

     o    equity, debt and economic research;

     o    banking, trust and lending services, including mortgage lending and
          related services; and

     o    insurance sales and underwriting services.

We provide these products and services to a wide array of clients, including
individual investors, small businesses, corporations, governments, governmental
agencies and financial institutions.

     Our principal executive office is located at World Financial Center, North
Tower, 250 Vesey Street, New York, New York 10281; our telephone number is
(212) 449-1000.

     If you want to find more information about us, please see the sections
entitled "Where You Can Find More Information" and "Incorporation of
Information We File with the SEC" in this prospectus.

     In this prospectus, "ML&Co.", "we", "us" and "our" refer specifically to
Merrill Lynch & Co., Inc., the holding company. ML&Co. is the issuer of the
SMART Notes described in this prospectus.
    



<PAGE>


   
                       RATIO OF EARNINGS TO FIXED CHARGES

     In 1998, we acquired the outstanding shares of Midland Walwyn, Inc., in a
transaction accounted for as a pooling-of-interests. The following information
for the fiscal years 1994 through 1997 has been restated as if the two entities
had always been combined.

     The following table sets forth our historical ratios of earnings to fixed
charges for the periods indicated:

<TABLE>
<CAPTION>

                                                     Year Ended Last Friday in December
                                                  1994     1995     1996     1997     1998
                                                  ----------------------------------------
<S>                                                <C>      <C>      <C>      <C>      <C>
Ratio of earnings to fixed charges(a).........     1.2      1.2      1.2      1.2      1.1

- ----------
(a)  The effect of combining Midland Walwyn did not change the ratios reported for the 
     fiscal years 1994 through 1997.
</TABLE>


     For the purpose of calculating the ratio of earnings to fixed charges,
"earnings" consist of earnings from continuing operations before income taxes
and fixed charges, excluding capitalized interest and preferred security
dividend requirements. "Fixed charges" consist of interest costs, the interest
factor in rentals, amortization of debt issuance costs, preferred security
dividend requirements of subsidiaries, and capitalized interest.
    



<PAGE>


   
                         DESCRIPTION OF THE SMART NOTES

     The SMART Notes were issued as a series of senior debt securities under
the 1983 Indenture which is more fully described in this prospectus.

     The SMART Notes will mature, and the principal of the SMART Notes will be
repayable at par, on December 31, 1999.

     The SMART Notes are not subject to redemption before maturity by ML&Co. or
at the option of any beneficial owner. Upon the occurrence of an Event of
Default with respect to the SMART Notes, however, beneficial owners of the
SMART Notes or the trustee may accelerate the maturity of the SMART Notes, as
described under "Description of Notes--Events of Default and Acceleration" and
"Other Terms--Events of Default" in this prospectus.

     The SMART Notes were issued in denominations of $1,000 and integral
multiples of $1,000.
    

Interest Payments

   
     For each full calendar year, ML&Co. will pay interest in an amount equal
to the following for each $1,000 principal amount of SMART Notes:

           $1,000  X Annual Percent Appreciation  X  Participation Rate

provided, however, that the per annum amount payable as a result of the
foregoing on the SMART Notes will not be less than the Minimum Annual Payment
or greater than the Maximum Annual Payment. The table below specifies the
Minimum Annual Payment and the Maximum Annual Payment on a per annum basis or
2% per annum per $1,000 principal amount of SMART Notes as well as the
Participation Rate.
    

        Minimum Annual Payment...............................    $30    (3%)
        Maximum Annual Payment...............................   $100   (10%)
        Participation Rate...................................           65%

   
     The "Annual Percent Appreciation" applicable to the determination of the
amount payable in any year will equal:
    

     o    the Ending Annual Value minus the Starting Annual Value, divided by

   
     o    the Starting Annual Value.

     The "Starting Annual Value" applicable to the determination of the amount
payable in a calendar year will equal the closing value of the S&P MidCap 400
Composite Stock Price Index on the first NYSE Business Day in that year on
which a Market Disruption Event has not occurred as determined by State Street
Bank and Trust Company, the calculation agent; provided, however, that if a
Market Disruption Event shall have occurred on each of the first ten NYSE
Business Days in any year, then, the "Starting Annual Value" applicable to the
determination of the amount payable in that year will equal the closing value
of the S&P MidCap 400 Composite Stock Price Index on the tenth NYSE Business
Day regardless of whether a Market Disruption Event occurs on that day.

     The "Ending Annual Value" applicable to the determination of the amount
payable in a calendar year will equal the closing value of the S&P MidCap 400
Composite Stock Price Index on the seventh scheduled NYSE Business Day
preceding the end of that year, including December 31 if it is a scheduled NYSE
Business Day, as determined by the calculation agent, unless a Market
Disruption Event has occurred on that day. In the event that a Market
Disruption Event has occurred on the seventh scheduled NYSE Business Day
preceding the end of that year, the "Ending Annual Value" applicable to the
determination of the amount payable in that year will equal the closing value
of the S&P MidCap 400 Composite Stock Price Index on the sixth scheduled NYSE
Business Day preceding the end of that year regardless of whether that day is a
NYSE Business Day or a Market Disruption Event occurs on that day. The
calculation agent will determine the seventh scheduled NYSE Business Day, and,
if necessary, the sixth scheduled NYSE Business Day before each December
payment date.

     If the Ending Annual Value applicable to that December payment date does
not exceed the Starting Annual Value applicable to that December payment date
by more than approximately 4.62%, beneficial owners of the SMART Notes will
receive only the Minimum Annual Payment on that December payment date, even if
the value of the S&P MidCap 400 Index at some point between the determination
of the applicable Starting Annual Value and the determination of the applicable
Ending Annual Value exceeded that Starting Annual Value by more than
approximately 4.62%. If the Ending Annual Value applicable to a December
payment date exceeds the Starting Annual Value applicable to that December
payment date by more than approximately 15.38%, the beneficial owners of the
SMART Notes would receive only the Maximum Annual Payment for the applicable
payment period.

     "Calculation Day" is any day on which a Starting Annual Value or an Ending
Annual Value is required to be calculated .

     A "NYSE Business Day" is a day on which The New York Stock Exchange is
open for trading. All determinations made by the calculation agent shall be at
the sole discretion of the calculation agent and, in the absence of manifest
error, shall be conclusive for all purposes and binding on ML&Co. and
beneficial owners of the SMART Notes.

     All percentages resulting from any calculation on the SMART Notes will be
rounded to the nearest one hundred-thousandth of a percentage point, with five
one-millionths of a percentage point rounded upward, e.g., 9.876545%, or
 .09876545, would be rounded to 9.87655%, or, .0987655, and all dollar amounts
used in or resulting from that calculation will be rounded to the nearest cent
with one-half cent being rounded upwards.

     "Market Disruption Event" means either of the following events, as
determined by the calculation agent:

     (a)  the suspension or material limitation on trading during significant
          market fluctuations shall be considered "material" for purposes of
          this definition, in each case, for more than two hours of trading in
          80 or more of the securities included in the S&P MidCap 400 Index, or

     (b)  the suspension or material limitation, in each case for more than two
          hours of trading in

          (1)  futures contracts related to the S&P MidCap 400 Composite Stock
               Price Index which are traded on the Chicago Mercantile
               Exchange or

          (2)  option contracts related to the S&P MidCap 400 Composite Stock
               Price Index which are traded on the American Stock Exchange.

     For the purposes of clause (a) above, any limitations on trading during
significant market fluctuations under New York Stock Exchange Rule 80A, or any
applicable rule or regulation enacted or promulgated by the NYSE or any other
self regulatory organization or the SEC of similar scope as determined by the
calculation agent, will be considered "material".
    

     For the purposes of this definition, a limitation on the hours in a
trading day and/or number of days of trading will not constitute a Market
Disruption Event if it results from an announced change in the regular business
hours of the relevant exchange.

Interest Payment Dates

   
     ML&Co. will make semiannual interest payments on the SMART Notes on June
30 and December 31 of each year ("June Payment Dates" and "December Payment
Dates", respectively), except as described in this prospectus, to the persons
in whose names the SMART Notes are registered on the next preceding June 29 or
December 30. For each SMART Note, ML&Co. will pay half of the Minimum Annual
Payment for each calendar year on the June Payment Date, and will pay the
balance of the annual amount payable on each SMART Note for that year on the
December Payment Date.

     Notwithstanding the foregoing, if it is known at least three Business Days
before December 31 that December 31 will not be a Business Day, the amount
payable by ML&Co. with respect to a December Payment Date for Series A SMART
Notes will be made on the Business Day immediately preceding that December 31
to the persons in whose names the SMART Notes are registered on the second
Business Day immediately preceding that December 31.
    

S&P MidCap 400 Index

   
     The following table illustrates hypothetical annual payments on the SMART
Notes using assumed changes in the S&P MidCap 400 Composite Stock Price Index.
The numbers below are shown for illustrative purposes only and are not intended
to predict either the future levels of the S&P MidCap 400 Index or the payments
to be received on the SMART Notes.
    

                        Hypothetical SMART Note Payments
<TABLE>
<CAPTION>

                                                                                                    Hypothetical
                      Hypothetical                                 Index                             Annualized
                        Starting        Hypothetical Ending       Percent       Participation          SMART
Year                 Annual Value(1)      Annual Value(2)          Change           Rate        Note Payment Rate(3)
- ----                 ---------------      ---------------          ------           ----        --------------------

<S>                       <C>                 <C>                  <C>               <C>                 <C>  
1 .............           163                 180                  10.43%            65%                 6.78%
2 .............           178                 206                  15.73%            65%                10.00%**
3 .............           208                 174                 -16.35%            65%                 3.00%*
4 .............           174                 218                  25.29%            65%                10.00%**
5 .............           217                 216                  -0.46%            65%                 3.00%*
6 .............           219                 284                  29.68%            65%                10.00%**
7 .............           283                 310                   9.54%            65%                 6.20%

</TABLE>

   
(1)  Assumed closing value of the S&P MidCap 400 Index on the first NYSE
     Business Day of each year.
(2)  Assumed closing value of the S&P MidCap 400 Index on the seventh scheduled
     NYSE Business Day before the end of each year.
(3)  Simple interest basis.

 * Minimum Annual Payment, $30 per $1,000 principal amount (3% per annum).
** Maximum Annual Payment, $100 per $1,000 principal amount (10% per annum).

     The above figures are for purposes of illustration only. The actual amount
payable in any year on the SMART Notes will depend entirely on the Starting
Annual Value and Ending Annual Value applicable to that year determined by the
calculation agent as provided in this prospectus and the Minimum Annual
Payment, Maximum Annual Payment and Participation Rate.

     You should review the historical performance of the S&P MidCap 400
Composite Stock Price Index. The historical performance of the S&P MidCap 400
Composite Stock Price Index should not be taken as an indication of future
performance, and no assurance can be given that the S&P MidCap 400 Composite
Stock Price Index will increase sufficiently during any calendar year to cause
the beneficial owners of the SMART Notes to receive an amount in excess of the
Minimum Annual Payment during any that calendar year.

Discontinuance of the S&P MidCap 400 Composite Stock Price Index

     If S&P discontinues publication of the S&P MidCap 400 Index and S&P or
another entity publishes a successor or substitute index that the calculation
agent determines, in its sole discretion, to be comparable to the S&P MidCap
400 Composite Stock Price Index (that index being referred to in this
prospectus as a "Successor Index"), then, upon the calculation agent's
notification of its determination to the trustee and ML&Co., the calculation
agent will substitute the Successor Index as calculated by S&P or that other
entity for the S&P MidCap 400 Composite Stock Price Index and calculate the
Starting Annual Value and/or the Ending Annual Value as described above. Upon
any selection by the calculation agent of a Successor Index, ML&Co. shall cause
notice to be published in The Wall Street Journal or another newspaper of
general circulation within three Business Days of that selection.

     If the S&P MidCap 400 Composite Stock Price Index is unavailable or S&P
discontinues publication of the S&P MidCap 400 Index and a Successor Index is
not selected by the calculation agent or is no longer published on any of the
Calculation Days, the value to be substituted for the S&P MidCap 400 Composite
Stock Price Index for that Calculation Day used to calculate the Starting
Annual Value or Ending Annual Value, as the case may be, will be calculated as
described below.

     If a Successor Index is selected or the calculation agent calculates a
value as a substitute for the S&P MidCap 400 Composite Stock Price Index as
described below, the Successor Index or value shall be substituted for the S&P
MidCap 400 Composite Stock Price Index for all purposes.

     If at any time the method of calculating the S&P MidCap 400 Composite
Stock Price Index, or its value , is changed in a material respect, or if the
S&P MidCap 400 Composite Stock Price Index is in any other way modified so that
the Index does not, in the opinion of the calculation agent, fairly represent
the value of the S&P MidCap 400 Composite Stock Price Index had the changes or
modifications not been made, then, from and after that time, the calculation
agent shall, at the close of business in New York, New York, on each
Calculation Date, make any adjustments as, in the good faith judgment of the
calculation agent, may be necessary in order to arrive at a calculation of a
value of a stock index comparable to the S&P MidCap 400 Composite Stock Price
Index as if the changes or modifications had not been made, and calculate the
closing value with reference to the S&P MidCap 400 Composite Stock Price Index,
as adjusted. Accordingly, if the method of calculating the S&P MidCap 400
Composite Stock Price Index is modified so that the value of the Index is a
fraction or a multiple of what it would have been if it had not been modified,
e.g., due to a split in the Index, then the calculation agent shall adjust the
Index in order to arrive at a value of the S&P MidCap 400 Composite Stock Price
Index as if it had not been modified, e.g., as if the split had not occurred.

     If the S&P MidCap 400 Composite Stock Price Index is unavailable or the
publication of the S&P MidCap 400 Composite Stock Price Index is discontinued
and S&P or another entity does not publish a Successor Index on any of the
Calculation Days, the value to be substituted for the S&P MidCap 400 Composite
Stock Price Index for any Calculation Day will be the value computed by the
calculation agent for each that Calculation Day in accordance with the
following procedures:

     (c) (a) identifying the component stocks of the S&P MidCap 400 Composite
Stock Price Index or any Successor Index as of the last date on which either of
the indices was calculated by S&P or another entity and published by S&P or
that other entity (each component stock is a "Last Component Stock");

     (d)  (b) for each Last Component Stock, calculating as of each that NYSE
          Business Day the product of the market price per share and the number
          of the then outstanding shares (that product referred to as the
          "Market Value" of that stock), by reference to

          o    the closing market price per share of that Last Component Stock
               as quoted by the New York Stock Exchange or the American Stock
               Exchange or any other registered national securities exchange
               that is the primary market for that Last Component Stock, or if
               no quotation is available, then the closing market price as
               quoted by any other registered national securities exchange or
               the National Association of Securities Dealers Automated
               Quotation National Market System, or if no price is quoted, then
               the market price from the best available source as determined by
               the calculation agent and

          o    the most recent publicly available statement of the number of
               outstanding shares of that Last Component Stock;

     (e)  (c) aggregating the Market Values obtained in clause (b) for all Last
          Component Stocks;

     (f)  (d) ascertaining the Base Value, as defined below under "The Standard
          & Poor's MidCap 400 Index--Computation of the S&P MidCap 400 Index",
          in effect as of the last day on which either the S&P MidCap 400 Index
          or any Successor Index was published by S&P or another entity,
          adjusted as described below;

     (g)  (e) dividing the aggregate Market Value of all Last Component Stocks
          by the Base Value, adjusted as described above;

     (h)  (f) multiplying the resulting quotient, expressed in decimals, by
          100.

     If any Last Component Stock is no longer publicly traded on any registered
national securities exchange or in the over-the-counter market, the last
available market price per share for that Last Component Stock as quoted by any
registered national securities exchange or in the over-the-counter market, and
the number of outstanding shares at that time, will be used in computing the
last available Market Value of that Last Component Stock. That Market Value
will be used in all computations of the S&P MidCap 400 Index thereafter.

     If a company that has issued a Last Component Stock and another company
that has issued a Last Component Stock are consolidated to form a new company,
the common stock of the new company will be considered a Last Component Stock
and the common stocks of the constituent companies will no longer be considered
Last Component Stocks. If any company that has issued a Last Component Stock
merges with, or acquires, a company that has not issued a Last Component Stock,
the common stock of the surviving corporation will, upon the effectiveness of
that merger or acquisition, be considered a Last Component Stock. In each that
case, the Base Value will be adjusted so that the Base Value immediately after
that consolidation, merger or acquisition will equal:

     o    the Base Value immediately before that event, multiplied by

     o    the quotient of the aggregate Market Value of all Last Component
          Stocks immediately after that event, divided by the aggregate Market
          Value for all Last Component Stocks immediately before that event.

     If a company that has issued a Last Component Stock issues a stock
dividend, declares a stock split or issues new shares pursuant to the
acquisition of another company, then, in each case, the Base Value will be
adjusted in accordance with the formula described below so that the Base Value
immediately after the time the particular Last Component Stock commences
trading ex-dividend, the effectiveness of the stock split or the time new
shares of that Last Component Stock commence trading equals:

     o    the Base Value immediately before that event, multiplied by

     o    the quotient of the aggregate Market Value for all Last Component
          Stocks immediately after that event, divided by the aggregate Market
          Value of all Last Component Stocks immediately before that event.

The Base Value used by the calculation agent to calculate the value described
above will not necessarily be adjusted in all cases in which S&P, in its
discretion, might adjust the Base Value, as described below under "The Standard
& Poor's MidCap 400 Composite Stock Price Index--Computation of the S&P MidCap
400 Composite Stock Price Index".

     If S&P discontinues publication of the S&P MidCap 400 Composite Stock
Price Index before the period during which the amount payable with respect to
any year is to be determined and the calculation agent determines that no
Successor Index is available at that time, then on each NYSE Business Day until
the earlier to occur of

     o    the determination of the amount payable with respect to that year or

     o    a determination by the calculation agent that a Successor Index is
          available, the calculation agent shall determine the value that would
          be used in computing the amount payable with respect to that year by
          reference to the method set forth in clauses (a) through (f) in the
          fourth preceding paragraph above as if that day were a Calculation
          Day. The calculation agent will cause notice of each value to be
          published not less often than once each month in the Wall Street
          Journal or another newspaper of general circulation, and arrange for
          information with respect to these values to be made available by
          telephone. Notwithstanding these alternative arrangements,
          discontinuance of the publication of the S&P MidCap 400 Composite
          Stock Price Index may adversely affect trading in the SMART Notes.

    

Events of Default and Acceleration

   
     In case an Event of Default with respect to any SMART Notes has occurred
and is continuing, the amount payable to a beneficial owner of a SMART Note
upon any acceleration permitted by the SMART Notes, will equal:

     o    the principal amount of the SMART Note, plus

     o    an additional amount, if any, of interest calculated as though the
          date of early repayment were a December payment date and prorated
          through that date of early repayment based on the ratio of the number
          of days from and including the date the Starting Annual Value
          applicable to that year is determined to but excluding the date of
          early repayment, computed on the basis of a year consisting of 360
          days of twelve 30-day months, divided by 360.

     If a bankruptcy proceeding is commenced in respect of ML&Co., the claim of
the beneficial owner of a Note may be limited, under Section 502(b)(2) of Title
11 of the United States Code, to the principal amount of the Note plus an
additional amount, if any, of contingent interest calculated as though the date
of the commencement of the proceeding were the maturity date of the Notes.

Global Securities

     Description of the Global Securities

     Beneficial owners of the SMART Notes may not receive physical delivery of
the securities nor may they be entitled to have the securities registered in
their names. The SMART Notes are represented by one or more fully registered
global securities. Each global security has been deposited with, or on behalf
of, The Depository Trust Company or DTC (DTC, together with any successor,
being a "depositary"), as depositary, registered in the name of Cede & Co,
DTC's partnership nominee . Unless and until it is exchanged in whole or in
part for SMART Notes in definitive form, no global security may be transferred
except as a whole by the depositary to a nominee of the depositary or by a
nominee of the depositary to that depositary or another nominee of the
depositary or by the depositary or any nominee to a successor of the depositary
or a nominee of that successor.

     So long as DTC, or its nominee, is a registered owner of a global
security, DTC or its nominee, as the case may be, will be considered the sole
owner or holder of the SMART Notes represented by a global security for all
purposes under the 1983 Indenture. Except as provided below, the beneficial
owners of the securities represented by a global security are not entitled to
have the SMART Notes represented by the global security registered in their
names, will not receive or be entitled to receive physical delivery of the
SMART Notes in definitive form and are not considered the owners or holders
under the 1983 Indenture, including for purposes of receiving any reports
delivered by ML&Co. or the trustee under the 1983 Indenture. Accordingly, each
person owning a beneficial interest in a global security must rely on the
procedures of DTC and, if that person is not a participant of DTC on the
procedures of the participant through which that person owns its interest, to
exercise any rights of a holder under the 1983 Indenture. ML&Co. understands
that under existing industry practices, in the event that ML&Co. requests any
action of holders or that an owner of a beneficial interest in a global
security desires to give or take any action which a holder is entitled to give
or take under the 1983 Indenture, DTC would authorize the participants holding
the relevant beneficial interests to give or take action, and those
participants would authorize beneficial owners owning through those
participants to give or take action or would otherwise act upon the
instructions of beneficial owners. Conveyance of notices and other
communications by DTC to participants, by participants to indirect participants
and by participants and indirect participants to beneficial owners are governed
by arrangements among them, subject to any statutory or regulatory requirements
as may be in effect from time to time.

     DTC Procedures

     The following is based on information furnished by DTC:

     DTC is the securities depositary for the securities. The securities have
been issued as fully registered securities registered in the name of Cede &
Co., DTC's partnership nominee. One or more fully registered global securities
have been issued for the SMART Notes in the aggregate principal amount of that
issue, and has been deposited with DTC.

         DTC is a limited-purpose trust company organized under the New York
Banking Law, a "banking organization" within the meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing corporation"
within the meaning of the New York Uniform Commercial Code, and a "clearing
agency" registered pursuant to the provisions of Section 17A of the Exchange
Act. DTC holds securities that its participants deposit with DTC. DTC also
facilitates the settlement among participants of securities transactions , such
as transfers and pledges, in deposited securities through electronic
computerized book-entry changes in participants' accounts , thereby eliminating
the need for physical movement of securities certificates. Direct participants
of DTC include securities brokers and dealers, banks, trust companies, clearing
corporations and certain other organizations. DTC is owned by a number of its
direct participants and by the NYSE, the AMEX and the National Association of
Securities Dealers, Inc. Access to DTC's system is also available to others
such as securities brokers and dealers, banks and trust companies that clear
through or maintain a custodial relationship with a direct participant, either
directly or indirectly. The rules applicable to DTC and its participants are on
file with the SEC.

     Purchases of securities under DTC's system must be made by or through
direct participants, which will receive a credit for the securities on DTC's
records. The ownership interest of each beneficial owner is in turn to be
recorded on the records of direct and indirect participants. Beneficial owners
will not receive written confirmation from DTC of their purchase, but
beneficial owners are expected to receive written confirmations providing
details of the transaction, as well as periodic statements of their holdings,
from the direct participants or indirect participants through which the
beneficial owner entered into the transaction. Transfers of ownership interests
in the securities are to be accomplished by entries made on the books of
participants acting on behalf of beneficial owners.

     To facilitate subsequent transfers, all securities deposited with DTC are
registered in the name of DTC's partnership nominee, Cede & Co. The deposit of
securities with DTC and their registration in the name of Cede & Co. effect no
change in beneficial ownership. DTC has no knowledge of the actual beneficial
owners of the securities; DTC's records reflect only the identity of the direct
participants to whose accounts the securities are credited, which may or may
not be the beneficial owners. The participants are responsible for keeping
account of their holdings on behalf of their customers.

     Conveyance of notices and other communications by DTC to direct
participants, by direct participants to indirect participants, and by direct
and indirect participants to beneficial owners are governed by arrangements
among them, subject to any statutory or regulatory requirements as may be in
effect from time to time.

     Neither DTC nor Cede & Co. will consent or vote with respect to the
securities. Under its usual procedures, DTC mails an omnibus proxy to ML&Co. as
soon as possible after the applicable record date. The omnibus proxy assigns
Cede & Co.'s consenting or voting rights to those direct participants
identified in a listing attached to the omnibus proxy to whose accounts the
securities are credited on the record date.

     Principal, premium, if any, and/or interest, if any, payments on the SMART
Notes will be made in immediately available funds to DTC. DTC's practice is to
credit direct participants' accounts on the applicable payment date in
accordance with their respective holdings shown on the depositary's records
unless DTC has reason to believe that it will not receive payment on that date.
Payments by participants to beneficial owners will be governed by standing
instructions and customary practices, as is the case with securities held for
the accounts of customers in bearer form or registered in "street name", and
will be the responsibility of that participant and not of DTC, the trustee or
ML&Co., subject to any statutory or regulatory requirements as may be in effect
from time to time. Payment of principal, premium, if any, and/or interest, if
any, to DTC is the responsibility of ML&Co. or the trustee, disbursement of
these payments to direct participants is the responsibility of DTC, and
disbursement of these payments to the beneficial owners is the responsibility
of direct and indirect participants.

     Exchange for Certificated Securities

     If 

     (a)  the depositary is at any time unwilling or unable to continue as
          depositary and a successor depositary is not appointed by ML&Co.
          within 60 days,

     (b)  ML&Co. executes and delivers to the trustee a company order to the
          effect that the global securities shall be exchangeable , and

     (c)  an Event of Default under the 1983 Indenture has occurred and is
          continuing with respect to the securities,


the global securities will be exchangeable for securities in definitive form of
like tenor and of an equal aggregate principal amount, in denominations of
$1,000 and integral multiples of $1,000. The definitive securities will be
registered in the name or names as the depositary shall instruct the trustee.
It is expected that these instructions may be based upon directions received by
the depositary from participants with respect to ownership of beneficial
interests in the global securities.

     In addition, ML&Co. may decide to discontinue use of the system of
book-entry transfers through the depositary. In that event, SMART Notes in
definitive form will be printed and delivered.

     The information in this section concerning DTC and DTC's system has been
obtained from sources that ML&Co. believes to be reliable, but ML&Co. takes no
responsibility for its accuracy.


         THE STANDARD & POOR'S MIDCAP 400 COMPOSITE STOCK PRICE INDEX

         All disclosure contained in this prospectus regarding the S&P MidCap
400 Composite Stock Price Index, including, without limitation, its make-up,
method of calculation and changes in its components, is derived from publicly
available information prepared by S&P as of April 16, 1993. Neither ML&Co. nor
MLPF&S take any responsibility for that information.

     The S&P MidCap 400 Composite Stock Price Index is published by S&P and is
intended to provide an indication of the pattern of price movements of common
stocks of corporations having mid-market capitalization. The calculation of the
value of the S&P MidCap 400 Composite Stock Price Index is based on the
relative value of the aggregate Market Value of the common stocks of 400
companies as of a particular time as compared to the aggregate average Market
Value of the common stocks of 400 substantially similar companies on December
31, 1990.

     The 400 companies are not the largest companies listed on The New York
Stock Exchange.

     S&P chooses companies for inclusion in the S&P MidCap 400 Composite Stock
Price Index with the aim of achieving for companies of mid-market
capitalization a distribution by broad industry groupings that approximates the
distribution of these groupings in the common stock population of the NYSE,
which S&P uses as an assumed model for the composition of the total market with
respect to these mid-market corporations. Relevant criteria employed by S&P in
selecting companies for the S&P MidCap 400 Composite Stock Price Index include
the viability of the particular company, the extent to which that company
represents the industry group to which it is assigned, the extent to which the
market price of that company's common stock is generally responsive to changes
in the affairs of the respective industry and the Market Value and trading
activity of the common stock of that company.

     The value of the S&P MidCap 400 Composite Stock Price Index is available
through S&P's website located at http://www.spglobal.com.

Computation of the S&P MidCap 400 Composite Stock Price Index

     As of April 16, 1993, S&P computed the S&P MidCap 400 Composite Stock
Price Index as of a particular time as follows:

     (c)  (a) the Market Value of each component stock is determined as of that
          time;

     (d)  (b) the Market Values of all component stocks as of that time, as
          determined under clause (1) above, are aggregated;

     (e)  (c) the Market Values as of December 31, 1990 (the "Base Period") of
          the common stock of each company in a group of 400 substantially
          similar companies is determined;

     (f)  (d) the Market Values of all common stocks as of the Base Period, as
          determined under clause (c) above, are aggregated, the aggregate
          amount being referred to as the "Base Value";

     (g)  (e) the aggregate Market Value of all component stocks as of that
          time, as determined under clause (b) above, is divided by the Base
          Value; and

     (h)  (f) the resulting quotient or expressed in decimals is multiplied by
          100.

     While S&P currently employs the above methodology to calculate the S&P
MidCap 400 Composite Stock Price Index, no assurance can be given that S&P will
not modify or change the methodology in a manner that may affect the amounts
payable on any December Payment Date to beneficial owners of the SMART Notes.

     S&P adjusts the foregoing formula to negate the effect of changes in the
Market Value of a component stock that are determined by S&P to be arbitrary or
not due to true market fluctuations. These changes may result from events
including the issuance of stock dividends, the granting to shareholders of
rights to purchase additional shares of stock, the purchase of additional
shares of stock by employees pursuant to employee benefit plans, certain
consolidations and acquisitions, the granting to shareholders of rights to
purchase other securities of ML&Co., the substitution by S&P of particular
component stocks in the S&P MidCap 400 Composite Stock Price Index and other
reasons. In all these cases, S&P first recalculates the aggregate Market Value
of all component stocks, after taking account of the new market price per share
of the particular component stock or the new number of outstanding shares of
that component stock or both, as the case may be, and then determines the New
Base Value in accordance with the following formula:

                                  New Market Value         
         Old Base Value      X   --------------------  =  New Base Value
                                   Old Market Value       


The result is that the Base Value is adjusted in proportion to any change in
the aggregate Market Value of all component stocks resulting from the causes
referred to above to the extent necessary to negate the effects of these causes
upon the S&P MidCap 400 Composite Stock Price Index.

     You should review the historical performance of the S&P MidCap 400
Composite Stock Price Index. The historical performance of the S&P MidCap 400
Composite Stock Price Index should not be taken as an indication of future
performance, and no assurance can be given that the S&P MidCap 400 Composite
Stock Price Index will increase sufficiently to cause the beneficial owners of
the SMART Notes to receive an amount in excess of the principal amount at the
maturity of the SMART Notes.
    

License Agreement

   
     S&P and Merrill Lynch Capital Services, Inc. have entered into a
non-exclusive license agreement providing for the license to Merrill Lynch
Capital Services, Inc., in exchange for a fee, of the right to use indices
owned and published by S&P in connection with certain securities, including the
Notes, and ML&Co. is an authorized sub-licensee of S&P.

     The license agreement between S&P and Merrill Lynch Capital Services, Inc.
provides that the following language must be stated in this prospectus:

     "The Notes are not sponsored, endorsed, sold or promoted by S&P. S&P makes
     no representation or warranty, express or implied, to the Holders of the
     Notes or any member of the public regarding the advisability of investing
     in securities generally or in the Notes particularly or the ability of the
     S&P MidCap 400 Index to track general stock market performance. S&P's only
     relationship to Merrill Lynch Capital Services, Inc. and ML&Co., other
     than transactions entered into in the ordinary course of business, is the
     licensing of certain service marks and trade names of S&P and of the S&P
     MidCap 400 Index which is determined, composed and calculated by S&P
     without regard to ML&Co. or the SMART Notes. S&P has no obligation to take
     the needs of ML&Co. or the Holders of the Notes into consideration in
     determining, composing or calculating the S&P MidCap 400 Composite Stock
     Price Index. S&P is not responsible for and has not participated in the
     determination or calculation of the equation by which the Notes are to be
     converted into cash. S&P has no obligation or liability in connection with
     the administration, marketing or trading of the Notes."

     S&P does not guarantee the accuracy and/or the completeness of the S&P
MidCap 400 Index or any data included in the S&P MidCap 400 Index. S&P makes no
warranty, express or implied, as to results to be obtained by ML&Co., Merrill
Lynch, Pierce, Fenner & Smith Incorporated, holders of the SMART Notes, or any
other person or entity from the use of the S&P MidCap 400 Index or any data
included therein in connection with the rights licensed under the license
agreement described herein or for any other use. S&P makes no express or
implied warranties, and hereby expressly disclaims all warranties of
merchantability or fitness for a particular purpose with respect to the S&P
MidCap 400 Index or any data included in the S&P MidCap 400 Index without
limiting any of the foregoing, in no event shall S&P have any liability for any
special, punitive, indirect or consequential damages, including lost profits,
even if notified of the possibility of such damages.

                                  OTHER TERMS

     ML&Co. issued the SMART Notes as a series of senior debt securities under
the 1983 Indenture, dated as of April 1, 1983, as amended and restated, between
ML&Co. and The Chase Manhattan Bank, as trustee. A copy of the 1983 Indenture
is filed as an exhibit to the registration statement relating to the SMART
Notes of which this prospectus is a part. The following summaries of the
material provisions of the 1983 Indenture are not complete and are subject to,
and qualified in their entirety by reference to, all provisions of the 1983
Indenture, including the definitions of terms in the 1983 Indenture.

     ML&Co. may issue series of senior debt securities from time to time under
the 1983 Indenture, without limitation as to aggregate principal amount, in one
or more series and upon terms as ML&Co. may establish under the provisions of
the 1983 Indenture.

     The 1983 Indenture and the SMART Notes are governed by and are construed
in accordance with the laws of the State of New York.

     ML&Co. may issue senior debt securities with terms different from those of
senior debt securities previously issued, and issue additional senior debt
securities of a previously issued series of senior debt securities.

     The senior debt securities are unsecured and rank equally with all other
unsecured and unsubordinated indebtedness of ML&Co. However, because ML&Co. is
a holding company, the rights of ML&Co. and its creditors, including the
holders of senior debt securities, to participate in any distribution of the
assets of any subsidiary upon its liquidation or reorganization or otherwise
are necessarily subject to the prior claims of creditors of the subsidiary,
except to the extent that a bankruptcy court may recognize claims of ML&Co.
itself as a creditor of the subsidiary . In addition, dividends, loans and
advances from certain subsidiaries, including MLPF&S, to ML&Co. are restricted
by net capital requirements under the Exchange Act , and under rules of
exchanges and other regulatory bodies.
    

<PAGE>


Limitations Upon Liens

   
     ML&Co. may not, and may not permit any majority-owned subsidiary to,
create, assume, incur or permit to exist any indebtedness for borrowed money
secured by a pledge, lien or other encumbrance, other than those liens
specifically permitted by the 1983 Indenture, on the Voting Stock owned
directly or indirectly by ML&Co. of any majority-owned subsidiary, other than a
majority-owned subsidiary which, at the time of the incurrence of the secured
indebtedness, has a net worth of less than $3,000,000, unless the outstanding
senior debt securities are secured equally and ratably with the secured
indebtedness.

     "Voting Stock" is defined in the 1983 Indenture as the stock of the class
or classes having general voting power under ordinary circumstances to elect at
least a majority of the board of directors, managers or trustees of a
corporation provided that, for the purposes of the 1983 Indenture, stock that
carries only the right to vote conditionally on the occurrence of an event is
not considered voting stock whether or not the event has happened.
    

Limitation on Disposition of Voting Stock of, and Merger and Sale of
Assets by, MLPF&S

   
     ML&Co. may not sell, transfer or otherwise dispose of any Voting Stock of
MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of its
Voting Stock, unless, after giving effect to any transaction, MLPF&S remains a
Controlled Subsidiary.

     "Controlled Subsidiary" is defined in the 1983 Indenture to mean a
corporation more than 80% of the outstanding shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

     In addition, ML&Co. may not permit MLPF&S to:

     o    merge or consolidate, unless the surviving company is a Controlled
          Subsidiary, or

    
     o    convey or transfer its properties and assets substantially as an
          entirety, except to one or more Controlled Subsidiaries.

Merger and Consolidation

   
     ML&Co. may consolidate or merge with or into any other corporation and
ML&Co. may sell, lease or convey all or substantially all of its assets to any
corporation, provided that:

     o    the resulting corporation, if other than ML&Co., is a corporation
          organized and existing under the laws of the United States of America
          or any U.S. state and assumes all of ML&Co.'s obligations to:

          o    pay any amounts due and payable or deliverable with respect to
               all the senior debt securities; and

          o    perform and observe all of ML&Co.'s obligations under the 1983
               Indenture, and

     o    ML&Co. or the successor corporation, as the case may be, is not,
          immediately after any consolidation or merger, in default under the
          1983 Indenture.
    

Modification and Waiver

   
     ML&Co. and the trustee may modify and amend the 1983 Indenture with the
consent of holders of at least 66 2/3% in principal amount of each outstanding
series of senior debt securities affected. However, without the consent of each
holder of any outstanding senior debt security affected, no amendment or
modification to the 1983 Indenture may:

     o    change the stated maturity date of the principal of, or any
          installment of interest or Additional Amounts payable on, any senior
          debt security or any premium payable on redemption , or change the
          redemption price;

     o    reduce the principal amount of, or the interes or Additional Amounts
          payable on, any senior debt security or reduce the amount of
          principal which could be declared due and payable before the stated
          maturity date;

     o    change the place or currency of any payment of principal or any
          premium, interest or Additional Amounts payable on any senior debt
          security;

     o    impair the right to institute suit for the enforcement of any payment
          on or with respect to any senior debt security;

     o    reduce the percentage in principal amount of the outstanding senior
          debt securities of any series, the consent of whose holders is
          required to modify or amend the 1983 Indenture; or

     o    modify the foregoing requirements or reduce the percentage of
          outstanding senior debt securities necessary to waive any past
          default to less than a majority.

No modification or amendment of ML&Co.'s Subordinated Indenture or any
Subsequent Indenture for subordinated debt securities may adversely affect the
rights of any holder of ML&Co.'s senior indebtedness without the consent of
each holder affected. The holders of at least a majority in principal amount of
outstanding senior debt securities of any series may, with respect to that
series, waive past defaults under the 1983 Indenture and waive compliance by
ML&Co. with provisions in the 1983 Indenture, except as described under
"--Events of Default".

Events of Default

     Each of the following will be Events of Default with respect to senior
debt securities of any series:

     o    default in the payment of any interest or Additional Amounts payable
          when due and continuing for 30 days;

     o    default in the payment of any principal or premium when due;

     o    default in the deposit of any sinking fund payment, when due;

     o    default in the performance of any other obligation of ML&Co.
          contained in the 1983 Indenture for the benefit of that series or in
          the senior debt securities of that series, continuing for 60 days
          after written notice as provided in the 1983 Indenture;

     o    specified events in bankruptcy, insolvency or reorganization of
          ML&Co.; and

     o    any other Event of Default provided with respect to senior debt
          securities of that series which are not inconsistent with the 1983
          Indenture.

     If an Event of Default occurs and is continuing for any series of senior
debt securities, other than as a result of the bankruptcy, insolvency or
reorganization of ML&Co., the trustee or the holders of at least 25% in
principal amount of the outstanding senior debt securities of that series may
declare all amounts, or any lesser amount provided for in the senior debt
securities, due and payable or deliverable immediately. At any time after a
declaration of acceleration has been made with respect to senior debt
securities of any series but before the trustee has obtained a judgment or
decree for payment of money , the holders of a majority in principal amount of
the outstanding senior debt securities of that series may rescind any
declaration of acceleration and its consequences, if all payments due, other
than those due as a result of acceleration, have been made and all Events of
Default have been remedied or waived.

     The holders of a majority in principal amount or aggregate issue price of
the outstanding senior debt securities of that series may waive any Event of
Default with respect to that series, except a default:

     o    in the payment of any amounts due and payable or deliverable under
          the debt securities of that series; or

     o    in respect of an obligation or provision of the 1983 Indenture which
          cannot be modified under the terms of that Indenture without the
          consent of each holder of each outstanding security of each series of
          senior debt securities affected.

     The holders of a majority in principal amount of the outstanding senior
debt securities of a series may direct the time, method and place of conducting
any proceeding for any remedy available to the trustee or exercising any trust
or power conferred on the trustee with respect to those senior debt securities,
provided that any direction shall not be in conflict with any rule of law or
the 1983 Indenture. Before proceeding to exercise any right or power under the
1983 Indenture at the direction of the holders, the trustee shall be entitled
to receive from the holders reasonable security or indemnification against the
costs, expenses and liabilities which might be incurred by it in complying with
any direction.

     The SMART Notes and other series of senior debt securities issued under
the 1983 Indenture do not have the benefit of any cross-default provisions with
other indebtedness of ML&Co.

     ML&Co. is required to furnish to the trustee annually a statement as to
the fulfillment by ML&Co. of all of its obligations under the 1983 Indenture.


                      WHERE YOU CAN FIND MORE INFORMATION

     We file reports, proxy statements and other information with the SEC. Our
SEC filings are also available over the Internet at the SEC's web site at
http://www.sec.gov. You may also read and copy any document we file by visiting
the SEC's public reference rooms in Washington, D.C., New York, New York, and
Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further
information about the public reference rooms. You may also inspect our SEC
reports and other information at the New York Stock Exchange, Inc., 20 Broad
Street, New York, New York 10005.

     We have filed a registration statement on Form S-3 with the SEC covering
the SMART Notes and other securities. For further information on ML&Co. and the
SMART Notes, you should refer to our registration statement and its exhibits.
This prospectus summarizes material provisions of contracts and other documents
that we refer you to. Because the prospectus may not contain all the
information that you may find important, you should review the full text of
these documents. We have included copies of these documents as exhibits to our
registration statement of which this prospectus is a part.
    

<PAGE>

   
               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

     The SEC allows us to incorporate by reference the information we file with
them, which means:

     o    incorporated documents are considered part of the prospectus;

     o    we can disclose important information to you by referring you to
          those documents; and

     o    information that we file with the SEC will automatically update and
          supersede this incorporated information.

     We incorporate by reference the documents listed below which were filed
with the SEC under the Exchange Act:

     o    annual report on Form 10-K for the year ended December 25, 1998; and

     o    current reports on Form 8-K dated December 28, 1998, January 19,
          1999, February 17, 1999, February 18, 1999, February 22, 1999,
          February 23, 1999 and March 26, 1999.

     We also incorporate by reference each of the following documents that we
will file with the SEC after the date of this prospectus until this offering is
completed or after the date of this initial registration statement and before
the effectiveness of the registration statement:

     o    reports filed under Sections 13(a) and (c) of the Exchange Act;

     o    definitive proxy or information statements filed under Section 14 of
          the Exchange Act in connection with any subsequent stockholders'
          meeting; and

     o    any reports filed under Section 15(d) of the Exchange Act.

     You should rely only on information contained or incorporated by reference
in this prospectus. We have not, and MLPF&S has not, authorized any other
person to provide you with different information. If anyone provides you with
different or inconsistent information, you should not rely on it. We are not,
and MLPF&S is not, making an offer to sell these securities in any jurisdiction
where the offer or sale is not permitted.

     You should assume that the information appearing in this prospectus is
accurate as of the date of this prospectus only. Our business, financial
condition and results of operations may have changed since that date.

     You may request a copy of any filings referred to above (excluding
exhibits), at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan, Jr., Corporate Secretary's Office, Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.

                              PLAN OF DISTRIBUTION

     This prospectus has been prepared in connection with secondary sales of
the SMART Notes and is to be used by MLPF&S when making offers and sales
related to market-making transactions in the SMART Notes.

     MLPF&S may act as principal or agent in these market-making transactions.

     The SMART Notes may be offered on the NYSE or off the exchange in
negotiated transactions or otherwise.

     The distribution of the SMART Notes will conform to the requirements set
forth in the applicable sections of Rule 2720 of the Conduct Rules of the NASD.
    

                                    EXPERTS
   
     The consolidated financial statements and the related financial statement
schedule incorporated in this prospectus by reference from the Annual Report on
Form 10-K of Merrill Lynch & Co., Inc. and subsidiaries have been audited by
Deloitte & Touche LLP, independent auditors, as stated in their reports (which
express an unqualified opinion and which report on the consolidated financial
statements includes an explanatory paragraph for the change in accounting method
for certain internal-use software development costs), which are incorporated
herein by reference, and have been so incorporated in reliance upon the reports
of such firm given upon their authority as experts in accounting and auditing.

    


<PAGE>
   
The information in this prospectus is not complete and may be changed. We may
not sell these securities until the registration statement filed with the
Securities and Exchange Commission is effective. This prospectus is not an
offer to sell these securities and it is not soliciting an offer to buy these
securities in any state where the offer or sale is not permitted. 
    



   
                             Subject to Completion
                 Preliminary Prospectus dated  March 29, 1999

 PROSPECTUS
    

                           Merrill Lynch & Co., Inc.
         Equity Participation Securities with Minimum Return Protection
                               due June 30, 1999

   
     This prospectus is to be used by Merrill Lynch & Co., Merrill Lynch,
Pierce, Fenner & Smith Incorporated, our wholly-owned subsidiary, when making
offers and sales related to market-making transactions in the securities.


<TABLE>
<CAPTION>

The Securities:                                              Payment at Maturity:
<S>                                                          <C>
o   100% principal protection at maturity                     o   On the maturity date, for each $1,000
o   No payments before the maturity date                          principal amount of the securities you 
o   Not redeemable before maturity                                own, we will pay you an amount equal to the
o   Senior unsecured debt securities of Merrill                   sum of $1,000 and an additional amount based on the
    Lynch & Co., Inc.                                             percentage increase,  if any, in the value of the
o   Linked to the value of S&P 500 Index                          S&P 500 Index as described in this prospectus.
o   The securities are listed on the New York Stock           o   You will  receive  no less  than  $1200  per  $1,000
    Exchange under the symbol "MERP ZR99".                        principal amount of your securities.
</TABLE>

                  Investing in the Securities involves risks.
                    See "Risk Factors" beginning on page 3.
    

     Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if
this prospectus is truthful or complete. Any representation to the contrary is
a criminal offense.


   
                                ---------------
    
                              Merrill Lynch & Co.
                                ---------------

            The date of this prospectus is _______________, 199__ .


<PAGE>

   
                               TABLE OF CONTENTS

                                                                     Page

RISK FACTORS.........................................................3

MERRILL LYNCH & CO., INC.............................................5

RATIO OF EARNINGS TO FIXED CHARGES...................................6

DESCRIPTION OF SECURITIES............................................7

THE INDEX...........................................................14

OTHER TERMS.........................................................17

WHERE YOU CAN FIND MORE INFORMATION.................................20

INCORPORATION OF INFORMATION WE FILE WITH THE SEC...................20

PLAN OF DISTRIBUTION................................................21

EXPERTS.............................................................21
    



<PAGE>


   
                                  RISK FACTORS

You may not earn a return on your investment.

     In addition to the principal amount of your securities, we will pay you an
amount at maturity based on the percentage increase, if any, in the value of
the S&P 500 Index. We will determine this additional amount, if any, by
calculating the final average value of the S&P 500 Index shortly before the
stated maturity date. You should be aware that if the final average value of
the index, calculated as described in this prospectus, does not exceed 447.43,
the closing value of the index on June 16, 1993, by more than approximately
15.63%, you will receive only the principal amount of your securities and an
additional amount equal to $200 for each $1,000 principal amount of your
securities. Therefore, the amount that we pay you at maturity may be less than
the return you could earn on other investments. Your yield may be less than the
yield you would earn if you bought a senior non-callable debt security of
Merrill Lynch & Co., Inc. with the same maturity date. Your investment may not
reflect the full opportunity cost to you when you take into account factors
that affect the time value of money.

     The S&P 500 Index does not reflect the payment of dividends on the stocks
underlying it and therefore, in addition to the considerations regarding
averaging discussed below, the yield based on the S&P 500 Index to the maturity
of the securities will not produce the same yield as if you purchased those
underlying stocks and held them for a similar period.

     Because the final average value of the S&P 500 Index will be based upon
average values of the S&P 500 Index during specified periods in three
successive years, a significant increase in the S&P 500 Index as measured by
the average values during the specified period in the final year, or in any
single earlier year, may be substantially or entirely offset by the average
values of the S&P 500 Index during the specified periods in the other two
years.

There may be an uncertain trading market for the securities in the future.

     The securities are listed on the NYSE under the symbol "MERP ZR99". We
cannot predict whether the securities will continue to trade in the secondary
market or whether any market will be liquid. We expect that the secondary
market for the securities will be affected by our creditworthiness and by a
number of other factors. Because the final average value of the S&P 500 Index
is an average of the three values as described in this prospectus, the price at
which you will be able to sell your securities in the secondary market may be
at a discount if the first or second value is below 447.43, the initial value
of the S&P 500 Index.

     We expect that the trading value of the securities will depend primarily
on the extent of the appreciation, if any, of the S&P 500 Index over its
initial value of 447.43. If, however, you sell your securities before the
maturity date at a time when the S&P 500 Index exceeds its initial value, the
price you receive may be at a discount from the amount payable if that excess
were to exist at maturity of the securities because of the possible fluctuation
in the value of the S&P 500 Index between the time of that sale and the
maturity date and the effect of the value of the S&P 500 Index on the days used
to calculate the final average value of the S&P 500 Index, if any. Furthermore,
the price at which you will be able to sell your securities before maturity may
be at a discount, which could be substantial, from the principal amount of your
securities, if, at that time, the S&P 500 Index is below, equal to, or not
sufficiently above, the initial value of the S&P 500 Index and/or if the value
of the S&P 500 Index on the days used to calculate the final average value, if
any, was below, equal to or not sufficiently above the initial value. A
discount could also result from rising interest rates.

     The trading values of the securities may be affected by a number of
interrelated factors, including our creditworthiness and those factors listed
below. The relationship among these factors is complex, including how these
factors affect the relative value of the principal amount of the securities and
any additional amounts to be paid at maturity. Accordingly, you should be aware
that factors other than the level of the S&P 500 Index are likely to affect the
securities' trading value. The expected effect on the trading value of the
securities of each of the factors listed below, assuming in each case that all
other factors are held constant, is as follows:

     Interest Rates. In general, if U.S. interest rates increase, we expect the
     value of the securities to decrease. If U.S. interest rates decrease, we
     expect the value of the securities to increase. Interest rates may also
     affect the U.S. economy, and, in turn, the value of the S&P 500 Index.
     Rising interest rates may lower the value of the S&P 500 Index and, thus,
     the securities. Falling interest rates may increase the value of the S&P
     500 Index and, thus, may increase the value of the securities.

     Volatility of the S&P 500 Index. If the volatility of the S&P 500 Index
     increases, we expect the trading value of the securities to increase. If
     the volatility of the S&P 500 Index decreases, we expect the trading value
     of the securities to decrease.

     Time Remaining to Maturity. We anticipate that before their maturity, the
     securities may trade at a value above that which may be inferred from the
     level of interest rates and the S&P 500 Index. This difference will
     reflect a "time premium" due to expectations concerning the value of the
     S&P 500 Index during the period before maturity of the securities. As the
     time remaining to maturity of the securities decreases, however, this time
     premium is expected to decrease, thus decreasing the trading value of the
     securities. In addition, the price at which you may be able to sell
     securities before maturity may be at a discount, which may be substantial,
     from the minimum expected value at maturity if one or more values of the
     S&P 500 Index used to calculate the final average value were below, equal
     to or not sufficiently above the initial value.

     Dividend Rates. If dividend rates on the stocks comprising the S&P 500
     Index increase, the value of the securities is expected to decrease.
     Conversely, if dividend rates on the stocks comprising the S&P 500 Index
     decrease, the value of the securities is expected to increase. However, in
     general, rising U.S. corporate dividend rates may increase the value of
     the S&P 500 Index and, in turn, increase the value of the securities.
     Conversely, falling U.S. dividend rates may decrease the value of the S&P
     500 Index and, in turn, decrease the value of the securities.

Other Considerations

     You should reach an investment decision with regard to securities only
after carefully considering the suitability of the securities in light of your
particular circumstances.

     You should also consider the tax consequences of investing in the
securities and should consult your tax advisors.
    



<PAGE>


                           MERRILL LYNCH & CO., INC.

   
     We are a holding company that, through our U.S. and non-U.S. subsidiaries
and affiliates such as Merrill Lynch, Pierce, Fenner & Smith Incorporated,
Merrill Lynch Government Securities Inc., Merrill Lynch Capital Services, Inc.,
Merrill Lynch International, Merrill Lynch Capital Markets Bank Ltd., Merrill
Lynch Asset Management L.P. and Merrill Lynch Mercury Asset Management,
provides investment, financing, advisory, insurance, and related products on a
global basis, including:

     o    securities brokerage, trading and underwriting;

     o    investment banking, strategic services, including mergers and
          acquisitions and other corporate finance advisory activities;

     o    asset management and other investment advisory and recordkeeping
          services;

     o    trading and brokerage of swaps, options, forwards, futures and other
          derivatives;

     o    securities clearance services;

     o    equity, debt and economic research;

     o    banking, trust and lending services, including mortgage lending and
          related services ; and

     o    insurance sales and underwriting services.

We provide these products and services to a wide array of clients, including
individual investors, small businesses, corporations, governments, governmental
agencies and financial institutions.

     Our principal executive office is located at World Financial Center, North
Tower, 250 Vesey Street, New York, New York 10281; our telephone number is
(212) 449-1000.

     If you want to find more information about us, please see the sections
entitled "Where You Can Find More Information" and "Incorporation of
Information We File with the SEC" in this prospectus.

     In this prospectus, "ML&Co.", "we", "us" and "our" refer specifically to
Merrill Lynch & Co., Inc., the holding company. ML&Co. is the issuer of the
Securities described in this prospectus.
    



<PAGE>

                       RATIO OF EARNINGS TO FIXED CHARGES

   
     In 1998, we acquired the outstanding shares of Midland Walwyn, Inc., in a
transaction accounted for as a pooling-of-interests. The following information
for the fiscal years 1994 through 1997 has been restated as if the two entities
had always been combined.

     The following table sets forth our historical ratios of earnings to fixed
charges for the periods indicated:

<TABLE>
<CAPTION>
                                                       Year Ended Last Friday in December
                                                   1994     1995     1996     1997      1998
                                                   -----------------------------------------
<S>                                                 <C>      <C>      <C>      <C>      <C>
Ratio of  earnings to fixed charges (a).........    1.2      1.2      1.2      1.2      1.1

- --------
(a)  The effect of combining Midland  Walwyn did not change the ratios reported for the 
     fiscal years 1994 through 1997.
</TABLE>


     For the purpose of calculating the ratio of earnings to fixed charges,
"earnings" consist of earnings from continuing operations before income taxes
and fixed charges, excluding capitalized interest and preferred security
dividend requirements. "Fixed charges" consist of interest costs, the interest
factor in rentals, amortization of debt issuance costs, preferred security
dividend requirements of subsidiaries, and capitalized interest.
    



<PAGE>


                           DESCRIPTION OF SECURITIES

   
     The securities were issued as a series of senior debt securities under the
1983 Indenture, which is more fully described under the section entitled "Other
Terms" in this prospectus.

     The securities will mature on June 30, 1999.

     No periodic payments of interest will be payable with respect to the
securities. See "Payment at Maturity", below.

     The securities are not subject to redemption by ML&Co. or at the option of
any beneficial owner before maturity. Upon the occurrence of an Event of
Default with respect to the securities, beneficial owners of the securities may
accelerate the maturity of the securities, as described under "Description of
securities--Events of Default and Acceleration" and "Other Terms--Events of
Default" in this prospectus.

     The securities are transferable in denominations of $1,000 and integral
multiples of $1,000.
    

Payment at Maturity

   
     At maturity, a beneficial owner of a security will be entitled to receive
the principal amount of that security plus a Supplemental Redemption Amount,
all as provided below. If the final average value, as defined below, of the S&P
500 Index does not exceed the initial value by more than approximately 15.63%,
a beneficial owner of a security will be entitled to receive only the principal
amount of that Security and the Minimum Supplemental Redemption Amount.

     At maturity, a beneficial owner of a security will be entitled to receive,
with respect to each security,

     o    the principal amount of the security, and

     o    the "Supplemental Redemption Amount" equal in amount to:

                                    (final average value-initial value)   
           principal amount   X      --------------------------------- x 128%
                                                initial value

provided, that the Supplemental Redemption Amount will not be less than the
Minimum Supplemental Redemption Amount of $200 per $1,000 principal amount of
securities.


     The initial value equals 447.43, the closing value of the S&P 500 Index on
June 16, 1993.

     The final average value of the S&P 500 Index will be determined by State
Street Bank and Trust Company or the calculation agent and will equal the
arithmetic average or arithmetic mean of the Yearly Values, as defined below,
for 1997, 1998 and 1999. The Yearly Value for any year will be calculated
during the Calculation Period for that year which will be from and including
June 18 in 1997, June 18 in 1998 and June 17 in 1999 to and including the fifth
scheduled Business Day after each date. The Yearly Value for each year will
equal the arithmetic average or arithmetic mean of the closing values of the
S&P 500 Index on the first day in the applicable Calculation Period, provided
that a Market Disruption Event, as defined below, shall not have occurred on
that day and on each succeeding Business Day, provided that a Market Disruption
Event shall not have occurred on the applicable day up to and including the
last Business Day in the applicable Calculation Period (each, a "Calculation
Date") until the calculation agent has determined the closing values for five
Business Days. If a Market Disruption Event occurs on two or more of the
Business Days during a Calculation Period, the Yearly Value for the relevant
year will equal the average of the values on Business Days on which a Market
Disruption Event did not occur during the Calculation Period or, if there is
only one Business Day, the value on that day. If Market Disruption Events occur
on all of the Business Days during a Calculation Period, the Yearly Value for
the relevant year shall equal the closing value of the S&P 500 Index on the
last Business Day of the Calculation Period regardless of whether a Market
Disruption Event shall have occurred on that day.

     A "Business Day" is a day on which the NYSE is open for trading.

     All determinations made by the calculation agent shall be at the sole
discretion of the calculation agent and, absent a determination by the
calculation agent of a manifest error, shall be conclusive for all purposes and
binding on ML&Co. and beneficial owners of the securities.

     If S&P discontinues publication of the S&P 500 Index and S&P or another
entity publishes a successor or substitute index that the calculation agent
determines, in its sole discretion, to be comparable to the S&P 500 Index (a
"Successor Index"), then, upon the calculation agent's notification of such
determination to the Trustee and ML&Co., the calculation agent will substitute
the Successor Index as calculated by S&P or any other entity for the S&P 500
Index and calculate the final average value as described in the preceding
paragraph. Upon any selection by the calculation agent of a Successor Index,
ML&Co. shall cause notice to be published in The Wall Street Journal or another
newspaper of general circulation within three Business Days of any selection.

     If S&P discontinues publication of the S&P 500 Index and a Successor Index
is not selected by the calculation agent or is no longer published on any of
the Calculation Dates, the value to be substituted for the S&P 500 Index for
any Calculation Date used to calculate the Supplemental Redemption Amount at
maturity will be calculated as described below under "Discontinuance of the S&P
500 Index".

     If a Successor Index is selected or the calculation agent calculates a
value as a substitute for the S&P 500 Index as described below, the Successor
Index or value shall be substituted for the S&P 500 Index for all purposes,
including for purposes of determining whether a Market Disruption Event exists.

     If at any time the method of calculating the S&P 500 Index, or its value ,
is changed in a material respect, or if the S&P 500 Index is in any other way
modified so that it does not, in the opinion of the calculation agent, fairly
represent the value of the S&P 500 Index had the changes or modifications not
been made, then, from and after such time, the calculation agent shall, at the
close of business in New York, New York, on each date that the closing value
with respect to the final average value is to be calculated, make any
adjustments as, in the good faith judgment of the calculation agent, may be
necessary in order to arrive at a calculation of a value of a stock index
comparable to the S&P 500 Index as if the changes or modifications had not been
made, and calculate the closing value with reference to the S&P 500 Index, as
adjusted. Accordingly, if the method of calculating the S&P 500 Index is
modified so that the value of the S&P 500 Index is a fraction or a multiple of
what it would have been if it had not been modified, e.g., due to a split in
the S&P 500 Index, then the calculation agent shall adjust such Index in order
to arrive at a value of the S&P 500 Index as if it had not been modified, e.g.,
as if such split had not occurred.

     "Market Disruption Event" means either of the following events, as
determined by the calculation agent:

     (a) the suspension or material limitation on trading for more than two
     hours of trading in 100 or more of the securities included in the S&P 500
     Index, or

     (b) the suspension or material limitation, in each case, for more than two
     hours of trading whether by reason of movements in price otherwise
     exceeding levels permitted by the relevant exchange or otherwise in
    

          o    futures contracts related to the S&P 500 Index which are traded
               on the Chicago Mercantile Exchange or

   
          o    option contracts related to the S&P 500 Index which are traded
               on the Chicago Board Options Exchange, Inc.

     For the purposes of clause (a) above, any limitations on trading during
significant market fluctuations under New York Stock Exchange Rule 80A, or any
applicable rule or regulation enacted or promulgated by the NYSE or any other
self regulatory organization or the SEC of similar scope as determined by the
calculation agent, will be considered "material". For the purposes of this
definition, a limitation on the hours in a trading day and/or number of days of
trading will not constitute a Market Disruption Event if it results from an
announced change in the regular business hours of the relevant exchange.

     The following table illustrates, for a range of hypothetical final average
values, the total amount payable at maturity for each $1,000 principal amount
of securities.

       

<TABLE>
<CAPTION>

   
                                                                                          Total
      Hypothetical Final                        Percentage Change                         Amount
       Average Value of                           Over Initial                          Payable at
       the S&P 500 Index                             Value                               Maturity
- --------------------------------              ----------------------                -------------------
    

         <S>                                       <C>                                 <C>
          223.72                                    -50%                                $1,200
          268.46                                    -40%                                $1,200
          313.20                                    -30%                                $1,200
          357.94                                    -20%                                $1,200
          402.69                                    -10%                                $1,200
          447.43(1)                                   0%                                $1,200
          492.17                                     10%                                $1,200
          536.92                                     20%                                $1,256
          581.66                                     30%                                $1,384
          626.40                                     40%                                $1,512
          671.15                                     50%                                $1,640
          715.89                                     60%                                $1,768
          760.63                                     70%                                $1,896
          805.37                                     80%                                $2,024
          850.12                                     90%                                $2,152
          894.86                                    100%                                $2,280
          939.60                                    110%                                $2,408
          984.35                                    120%                                $2,536

</TABLE>

   
(1)      initial value.

     The above figures are for purposes of illustration only. The actual Total
Redemption Amount received by investors will depend entirely on the actual
final average value determined by the calculation agent as provided herein.
Because the final average value will be based upon average values of the S&P
500 Index during specified periods in three successive years, a significant
increase or decrease in the S&P 500 Index as measured by the average values
during the specified period in any year may be substantially or entirely offset
by the average values of the S&P 500 Index during the specified periods in the
other two years.

     The 1983 Indenture provides that the securities are governed by and
construed in accordance with the laws of the state of New York. Under present
New York law, the maximum rate of interest is 25% per annum on a simple
interest basis. This limit may not apply to securities in which $2,500,000 or
more has been invested. While ML&Co. believes that New York law would be given
effect by a state or federal court sitting outside of New York, state laws
frequently regulate the amount of interest that may be charged to and paid by a
borrower, including, in some cases, corporate borrowers. It is suggested that
prospective investors consult their personal advisors with respect to the
applicability of these laws. ML&Co. will agree for the benefit of the
beneficial owners of the securities, to the extent permitted by law, not to
claim voluntarily the benefits of any laws concerning usurious rates of
interest against a beneficial owner of the securities.
    

Discontinuance of the S&P 500 Index and Successor Index

     If S&P discontinues publication of the S&P 500 Index and a Successor Index
is available, then the amount payable at maturity or upon earlier acceleration
will be determined by reference to the Successor Index, as provided above.

   
     If the publication of the S&P 500 Index is discontinued and S&P or another
entity does not publish a Successor Index on any of the Calculation Dates, the
value to be substituted for the S&P 500 Index for any Calculation Date used to
calculate the Supplemental Redemption Amount at maturity will be the value
computed by the calculation agent for each Calculation Date in accordance with
the following procedures:

     (a) identifying the component stocks of the S&P 500 Index or any Successor
Index as of the last date on which either of the indices was calculated by S&P
or another entity and published by S&P or any other entity (each component
stock is a "Last Component Stock");

     (b) for each Last Component Stock, calculating as of each Calculation Date
the product of the market price per share and the number of the then
outstanding shares (referred to as the "Market Value" of the stock), by
reference to

     o    the closing market price per share of the Last Component Stock as
          quoted by the NYSE or the American Stock Exchange or any other
          registered national securities exchange that is the primary market
          for the Last Component Stock, or if no such quotation is available,
          then the closing market price as quoted by any other registered
          national securities exchange or the National Association of
          securities Dealers Automated Quotation National Market System, or if
          no such price is quoted, then the market price from the best
          available source as determined by the calculation agent
          (collectively, the "Exchanges") and

     o    the most recent publicly available statement of the number of
          outstanding shares of the Last Component Stock;

     (c) aggregating the Market Values obtained in clause (b) for all Last
Component Stocks;

     (d) ascertaining the Base Value (as defined below under "The Standard &
Poor's 500 Index--Computation of the Index") in effect as of the last day on
which either the S&P 500 Index or any Successor Index was published by S&P or
another entity, adjusted as described below;

     (e) dividing the aggregate Market Value of all Last Component Stocks by
the Base Value (adjusted as aforesaid);

     (f) multiplying the resulting quotient (expressed in decimals) by ten.

     If any Last Component Stock is no longer publicly traded on any registered
national securities exchange or in the over-the-counter market, the last
available market price per share for such Last Component Stock as quoted by any
registered national securities exchange or in the over-the-counter market, and
the number of outstanding shares thereof at such time, will be used in
computing the last available Market Value of such Last Component Stock. This
Market Value will be used in all computations of the S&P 500 Index thereafter.

     If a company that has issued a Last Component Stock and another company
that has issued a Last Component Stock are consolidated to form a new company,
the common stock of such new company will be considered a Last Component Stock
and the common stocks of the constituent companies will no longer be considered
Last Component Stocks. If any company that has issued a Last Component Stock
merges with, or acquires, a company that has not issued a Last Component Stock,
the common stock of the surviving corporation will, upon the effectiveness of
such merger or acquisition, be considered a Last Component Stock. In each case,
the Base Value will be adjusted so that the Base Value immediately after such
consolidation, merger or acquisition will equal:

     (a) the Base Value immediately prior to the event, multiplied by

     (b) the quotient of the aggregate Market Value of all Last Component
Stocks immediately after the event, divided by the aggregate Market Value for
all Last Component Stocks immediately prior to that event.

     If a company that has issued a Last Component Stock issues a stock
dividend, declares a stock split or issues new shares pursuant to the
acquisition of another company, then, in each case, the Base Value will be
adjusted in accordance with the formula described below so that the Base Value
immediately after the time the particular Last Component Stock commences
trading ex-dividend, the effectiveness of the stock split or the time new
shares of the Last Component Stock commence trading equals
    

     (a) the Base Value immediately prior to such event, multiplied by

   
     (b) the quotient of the aggregate Market Value for all Last Component
Stocks immediately after that event, divided by the aggregate Market Value of
all Last Component Stocks immediately prior to that event. The Base Value used
by the calculation agent to calculate the value described above will not
necessarily be adjusted in all cases in which S&P, in its discretion, might
adjust the Base Value as described below under "The Standard & Poor's 500
Index--Computation of the S&P 500 Index".

     If S&P discontinues publication of the S&P 500 Index prior to the period
during which the Supplemental Redemption Amount is to be determined and the
calculation agent determines that no Successor Index is available at such time,
then on each Business Day until the earlier to occur of

     o    the determination of the final average value and

     o    a determination by the calculation agent that a Successor Index is
          available, the calculation agent shall determine the value that would
          be used in computing the Supplemental Redemption Amount by reference
          to the method set forth in clauses (a) through (f) in the fourth
          preceding paragraph above as if that day were a Calculation Date. The
          calculation agent will cause notice of each such value to be
          published not less often than once each month in The Wall Street
          Journal (or another newspaper of general circulation), and arrange
          for information with respect to such values to be made available by
          telephone.

Notwithstanding these alternative arrangements, discontinuance of the
publication of the S&P 500 Index may adversely affect trading in the
securities.
    

Events of Default and Acceleration

   
     In case an Event of Default with respect to any securities shall have
occurred and be continuing, the amount payable to a beneficial owner of a
security upon any acceleration permitted by the securities, with respect to
each $1,000 principal amount thereof, will be equal to:

     (a) the initial issue price ($1,000), plus

     (b) an additional amount of contingent interest calculated as though the
date of early repayment were the maturity date of the securities. The
Calculation Period used to calculate the final Yearly Value of the Notes so
accelerated will begin on the eighth scheduled Business Day next preceding the
scheduled date for any early redemption. If the final Yearly Value is the only
Yearly Value which shall have been calculated with respect to the Notes, the
final Yearly Value will be the final average value. If one or two other Yearly
Values shall have been calculated with respect to the Notes for prior years
when the Notes shall have been outstanding, the average of the final Yearly
Value and one other Yearly Value or two other Yearly Values, as the case may
be, will be the final average value. The Minimum Supplemental Redemption Amount
with respect to any early redemption date will be an amount equal to the
interest which would have accrued on the securities from and including the date
of original issuance to but excluding the date of early redemption at an
annualized rate of 3.06%, calculated on a semiannual bond equivalent basis. See
"Description of Securities--Payment at Maturity" in this prospectus.

     If a bankruptcy proceeding is commenced in respect of ML&Co., the claim of
the beneficial owner of a security may be limited, under Section 502(b)(2) of
Title 11 of the United States Code, to the principal amount of the security
plus an additional amount of contingent interest calculated as though the date
of the commencement of the proceeding were the maturity date of the securities.

     In case of default in payment at the maturity date of the securities
whether at their stated maturity or upon acceleration, from and after the
maturity date the securities shall bear interest, payable upon demand of the
beneficial owners thereof, at the rate of 7% per annum to the extent that
payment of such interest shall be legally enforceable on the unpaid amount due
and payable on such date in accordance with the terms of the securities to the
date payment of such amount has been made or duly provided for.

Global Securities

     Description of the Global Securities.

     Beneficial owners of the securities may not receive physical delivery of
the securities nor may they be entitled to have the securities registered in
their names. The securities are represented by one or more fully registered
global securities. Each global security has been deposited with, or on behalf
of, The Depository Trust Company or DTC (DTC, together with any successor
thereto, being a "depositary"), as depositary, registered in the name of Cede &
Co. (DTC's partnership nominee). Unless and until it is exchanged in whole or
in part for securities in definitive form, no global security may be
transferred except as a whole by the depositary to a nominee of the Depositary
or by a nominee of the Depositary to the Depositary or another nominee of the
Depositary or by the Depositary or any nominee to a successor of the Depositary
or a nominee of that successor.

     So long as DTC, or its nominee, is a registered owner of a global
security, DTC or its nominee, as the case may be, will be considered the sole
owner or Holder of the securities represented by a global security for all
purposes under the 1983 Indenture. Except as provided below, the beneficial
owners of the securities represented by a global security are not entitled to
have the securities represented by the global security registered in their
names, will not receive or be entitled to receive physical delivery of the
securities in definitive form and are not considered the owners or Holders
under the 1983 Indenture, including for purposes of receiving any reports
delivered by ML&Co. or the trustee under the 1983 Indenture. Accordingly, each
person owning a beneficial interest in a global security must rely on the
procedures of DTC and, if such person is not a participant of DTC on the
procedures of the participant through which such person owns its interest, to
exercise any rights of a Holder under the 1983 Indenture. ML&Co. understands
that under existing industry practices, in the event that ML&Co. requests any
action of Holders or that an owner of a beneficial interest in such a global
security desires to give or take any action which a Holder is entitled to give
or take under the 1983 Indenture, DTC would authorize the participants holding
the relevant beneficial interests to give or take action, and such participants
would authorize beneficial owners owning through such participants to give or
take action or would otherwise act upon the instructions of beneficial owners.
Conveyance of notices and other communications by DTC to participants, by
participants to indirect participants and by participants and indirect
participants to beneficial owners are governed by arrangements among them,
subject to any statutory or regulatory requirements as may be in effect from
time to time.

     DTC Procedures

     The following is based on information furnished by DTC:

     DTC is the securities depositary for the securities. The securities have
been issued as fully registered securities registered in the name of Cede & Co.
(DTC's partnership nominee). One or more fully registered global securities
have been issued for the securities in the aggregate principal amount of such
issue, and has been deposited with DTC.

     DTC is a limited-purpose trust company organized under the New York
Banking Law, a "banking organization" within the meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing corporation"
within the meaning of the New York Uniform Commercial Code, and a "clearing
agency" registered pursuant to the provisions of Section 17A of the Exchange
Act. DTC holds securities that its participants deposit with DTC. DTC also
facilitates the settlement among participants of securities transactions , such
as transfers and pledges, in deposited securities through electronic
computerized book-entry changes in participants' accounts , thereby eliminating
the need for physical movement of securities certificates. Direct participants
of DTC include securities brokers and dealers, banks, trust companies, clearing
corporations and certain other organizations. DTC is owned by a number of its
direct participants and by the NYSE, the AMEX and the National Association of
Securities Dealers, Inc. Access to the DTC's system is also available to others
such as securities brokers and dealers, banks and trust companies that clear
through or maintain a custodial relationship with a direct participant, either
directly or indirectly. The rules applicable to DTC and its participants are on
file with the SEC.

     Purchases of securities under DTC's system must be made by or through
direct participants, which will receive a credit for the securities on DTC's
records . The ownership interest of each beneficial owner is in turn to be
recorded on the records of direct and indirect participants. Beneficial owners
will not receive written confirmation from DTC of their purchase, but
beneficial owners are expected to receive written confirmations providing
details of the transaction, as well as periodic statements of their holdings,
from the direct participants or indirect participants through which such
beneficial owner entered into the transaction. Transfers of ownership interests
in the securities are to be accomplished by entries made on the books of
participants acting on behalf of beneficial owners.

     To facilitate subsequent transfers, all securities deposited with DTC are
registered in the name of DTC's partnership nominee, Cede & Co. The deposit of
securities with DTC and their registration in the name of Cede & Co. effect no
change in beneficial ownership. DTC has no knowledge of the actual beneficial
owners of the securities; DTC's records reflect only the identity of the direct
participants to whose accounts such securities are credited, which may or may
not be the beneficial owners. The participants are responsible for keeping
account of their holdings on behalf of their customers.

     Conveyance of notices and other communications by DTC to direct
participants, by direct participants to indirect participants, and by direct
and indirect participants to beneficial owners are governed by arrangements
among them, subject to any statutory or regulatory requirements as may be in
effect from time to time.

     Neither DTC nor Cede & Co. will consent or vote with respect to the
securities. Under its usual procedures, DTC mails an omnibus proxy to ML&Co. as
soon as possible after the applicable record date. The omnibus proxy assigns
Cede & Co.'s consenting or voting rights to those direct participants
identified in a listing attached to the omnibus proxy to whose accounts the
securities are credited on the record date.

     Principal, premium, if any, and/or interest, if any, payments on the
securities will be made in immediately available funds to DTC. DTC's practice
is to credit direct participants' accounts on the applicable payment date in
accordance with their respective holdings shown on the depositary's records
unless DTC has reason to believe that it will not receive payment on that date.
Payments by participants to beneficial owners will be governed by standing
instructions and customary practices, as is the case with securities held for
the accounts of customers in bearer form or registered in "street name", and
will be the responsibility of such participant and not of DTC, the trustee or
ML&Co., subject to any statutory or regulatory requirements as may be in effect
from time to time. Payment of principal, premium, if any, and/or interest, if
any, to DTC is the responsibility of ML&Co. or the trustee, disbursement of
such payments to direct participants is the responsibility of DTC, and
disbursement of such payments to the beneficial owners is the responsibility of
direct and indirect participants.
    
     Exchange for Certificated Securities

     If 

   
     (a) the depositary is at any time unwilling or unable to continue as
         depositary and a successor depositary is not appointed by ML&Co.
         within 60 days,

     (b) ML&Co. executes and delivers to the trustee a company order to the
effect that the global securities shall be exchangeable , and

     (c) an Event of Default under the 1983 Indenture has occurred and is
continuing with respect to the securities, 

the global securities will be exchangeable for securities in definitive form 
of like tenor and of an equal aggregate principal amount, in denominations
of $10 and integral multiples of $10. The definitive securities will be
registered in such name or names as the depositary shall instruct the trustee.
It is expected that such instructions may be based upon directions received by
the depositary from participants with respect to ownership of beneficial
interests in the global securities.

     In addition, ML&Co. may decide to discontinue use of the system of
book-entry transfers through the depositary. In that event, MITTS Security in
definitive form will be printed and delivered.

     The information in this section concerning DTC and DTC's system has been
obtained from sources that ML&Co. believes to be reliable, but ML&Co. takes no
responsibility for its accuracy.
    

                                   THE INDEX
   
     All disclosures contained in this prospectus regarding the Index,
including its make-up, method of calculation and changes in its components, are
derived from publicly available information prepared by S&P as of March 22,
1999. ML&Co. and MLPF&S do not assume any responsibility for the accuracy or
completeness of this information.

     The S&P 500 Index is published by S&P, and is intended to provide an
indication of the pattern of common stock price movement. The calculation of
the value of the Index, discussed below in further detail, is based on the
relative value of the aggregate Market Value of the common stocks of 500
companies as of a particular time compared to the aggregate average Market
Value of the common stocks of 500 similar companies during the base period of
the years 1941 through 1943. As of March 22, 1999 the 500 companies included in
the Index represented approximately 78% of the aggregate Market Value of common
stocks traded on the NYSE; however, these 500 companies are not the 500 largest
companies listed on the NYSE and not all of these 500 companies are listed on
the exchange. As of March 22, 1999, the aggregate Market Value of the 500
companies included in the Index represented approximately 79% of the aggregate
Market Value of United States domestic, public companies. S&P chooses companies
for inclusion in the Index with the aim of achieving a distribution by broad
industry groupings that approximates the distribution of these groupings in the
common stock population of the NYSE, which S&P uses as an assumed model for the
composition of the total market. Relevant criteria employed by S&P include:
    

     o    the viability of the particular company,

     o    the extent to which that company represents the industry group to
          which it is assigned,

   
     o    the extent to which the market price of that company's common stock
          is generally responsive to changes in the affairs of the respective
          industry, and
    

     o    the Market Value and trading activity of the common stock of that
          company.

   
     Four main groups of companies comprise the Index, with the number of
companies currently included in each group indicated in parentheses:
[Industrials (380), Utilities (39), Transportation (10) and Financial (71)].
S&P may from time to time, in its sole discretion, add companies to, or delete
companies from, the Index to achieve the objectives stated above.

Computation of the  Index

     S&P currently computes the Index as of a particular time as follows:

          (a) the product of the market price per share and the number of then
     outstanding shares of each component stock is determined at a certain time
     (the "Market Value" of the stock);

          (b) the Market Value of all component stock as of that time are
     aggregated;

          (c) the mean average of the Market Values as of each week in the base
     period of the years 1941 through 1943 of the common stock of each company
     in a group of 500 substantially similar companies is determined;

          (d) the mean average Market Values of all these common stocks over
     the base period are aggregated (the aggregate amount being referred to as
     the "Base Value");

          (e) the current aggregate Market Value of all component stocks is
     divided by the Base Value; and

          (f) the resulting quotient, expressed in decimals, is multiplied by
     ten.

     While S&P currently employs the above methodology to calculate the Index,
no assurance can be given that S&P will not modify or change this methodology
in a manner that may affect the Supplemental Redemption Amount, if any, payable
to beneficial owners of the securities upon maturity or otherwise.

     S&P adjusts the foregoing formula to negate the effects of changes in the
Market Value of a component stock that are determined by S&P to be arbitrary or
not due to true market fluctuations. Changes may result from such causes as
    

     o    the issuance of stock dividends,

   
     o    the granting to shareholders of rights to purchase additional shares
          of stock,

     o    the purchase of shares by employees pursuant to employee benefit
          plans,
    

     o    certain consolidations and acquisitions,

   
     o    the granting to shareholders of rights to purchase other securities
          of ML&Co.,

     o    the substitution by S&P of particular component stocks in the Index,
          and
    

     o    other reasons.

   
     In these cases, S&P first recalculates the aggregate Market Value of all
component stocks, after taking account of the new market price per share of the
particular component stock or the new number of outstanding shares thereof or
both, and then determines the New Base Value in accordance with the following
formula:

                              New Market Value 
      Old Base Value  X      ---------------- =  New Base Value
                             Old Market Value

     The result is that the Base Value is adjusted in proportion to any change
in the aggregate Market Value of all component stocks resulting from the causes
referred to above to the extent necessary to negate the effects of these causes
upon the Index.

Historical Data on the Index

     The following table sets forth the value of the Index at the end of each
month, in the period from January 1990 through February 1999. These historical
data on the Index are not necessarily indicative of the future performance of
the Index or what the value of the MITTS Securities may be. Any historical
upward or downward trend in the value of the Index during any period set forth
below is not any indication that the Index is more or less likely to increase
or decrease at any time during the term of the MITTS Securities.

<TABLE>
<CAPTION>

                  1990      1991      1992     1993      1994      1995      1996      1997        1998         1999

<S>              <C>       <C>       <C>      <C>       <C>       <C>       <C>       <C>          <C>           <C>     
January.......   329.08    343.93    408.78   438.78    481.61    470.42    636.02    786.16       980.28        1,279.64
February......   331.89    367.07    412.70   443.38    467.14    487.39    640.43    790.82     1,049.34        1,238.33
March.........   339.94    375.22    403.69   451.67    445.77    500.71    645.50    757.12     1,101.75
April.........   330.80    375.34    414.95   440.19    450.91    514.71    654.17    801.34     1,111.75
May...........   361.23    389.83    415.35   450.19    456.51    533.40    669.12    848.28     1,090.82
June..........   358.02    371.16    408.14   450.53    444.27    544.75    670.63    885.14     1,133.84
July..........   356.15    387.81    424.22   448.13    458.26    562.06    639.95    954.29     1,120.67
August........   322.56    395.43    414.03   463.56    475.50    561.88    651.99    899.47       957.28
September.....   306.05    387.86    417.80   458.93    462.71    584.41    687.31    947.28     1,017.01
October.......   304.00    392.45    418.68   467.83    472.35    581.50    705.27    914.62     1,098.67
November......   322.22    375.22    431.35   461.79    453.69    605.37    757.02    955.40     1,163.63
December......   330.22    417.09    435.71   466.45    459.27    615.93    740.74    970.43     1,229.23
</TABLE>

License Agreement

     S&P and Merrill Lynch Capital Services, Inc. have entered into a
non-exclusive license agreement providing for the license to Merrill Lynch
Capital Services, Inc., in exchange for a fee, of the right to use indices
owned and published by S&P in connection with certain securities, including the
securities, and ML&Co. is an authorized sublicensee thereof.

     The license agreement between S&P and Merrill Lynch Capital Services, Inc.
provides that the following language must be stated in this prospectus:

     "The securities are not sponsored, endorsed, sold or promoted by S&P. S&P
     makes no representation or warranty, express or implied, to the Holders of
     the securities or any member of the public regarding the advisability of
     investing in securities generally or in the securities particularly or the
     ability of the S&P 500 Index to track general stock market performance.
     S&P's only relationship to Merrill Lynch Capital Services, Inc. and
     ML&Co,. other than transactions entered into in the ordinary course of
     business, is the licensing of certain servicemarks and trade names of S&P
     and of the S&P 500 Index which is determined, composed and calculated by
     S&P without regard to ML&Co. or the securities. S&P has no obligation to
     take the needs of ML&Co. or the Holders of the securities into
     consideration in determining, composing or calculating the S&P 500 Index.
     S&P is not responsible for and has not participated in the determination
     of the timing of the sale of the securities, prices at which the
     securities are to initially be sold, or quantities of the securities to be
     issued or in the determination or calculation of the equation by which the
     securities are to be converted into cash. S&P has no obligation or
     liability in connection with the administration, marketing or trading of
     the securities.

     Standard & Poor's Corporation ("S&P") does not guarantee the accuracy
and/or the completeness of the S&P 500 Index or any data included in the S&P
500 Index. S&P makes no warranty, express or implied, as to results to be
obtained by ML&Co., MLPF&S, holders of the securities, or any other person or
entity from the use of the S&P 500 Index or any data included in the S&P 500
Index in connection with the rights licensed under the license agreement
described in this prospectus or for any other use. S&P makes no express or
implied warranties, and hereby expressly disclaims all warranties of
merchantability or fitness for a particular purpose with respect to the S&P 500
Index or any data included in the S&P 500 Index without limiting any of the
foregoing, in no event shall S&P have any liability for any special, punitive,
indirect or consequential damages, including lost profits, even if notified of
the possibility of such damages."


                                  OTHER TERMS

     The securities were issued as a series of senior debt securities under the
1983 Indenture, dated as of April 1, 1983, as amended and restated, between
ML&Co. and The Chase Manhattan Bank, as trustee. A copy of the 1983 Indenture
is filed as an exhibit to the registration statement relating to the Securities
of which this prospectus is a part. The following summaries of the material
provisions of the 1983 Indenture are not complete and are subject to, and
qualified in their entirety by reference to, all provisions of the 1983
Indenture, including the definitions of terms in the 1983 Indenture.

     Series of senior debt securities may from time to time be issued under the
1983 Indenture, without limitation as to aggregate principal amount, in one or
more series and upon terms as ML&Co. may establish under the provisions of the
1983 Indenture.

     The 1983 Indenture and the securities are governed by and construed in
accordance with the laws of the State of New York.

     ML&Co. may issue senior debt securities with terms different from those of
senior debt securities previously issued, and issue additional senior debt
securities of a previously issued series of senior debt securities.

     The senior debt securities are unsecured and rank equally with all other
unsecured and unsubordinated indebtedness of ML&Co. However, because ML&Co. is
a holding company, the rights of ML&Co. and its creditors, including the
holders of senior debt securities, to participate in any distribution of the
assets of any subsidiary upon its liquidation or reorganization or otherwise is
necessarily subject to the prior claims of creditors of the subsidiary, except
to the extent that claims of ML&Co. itself as a creditor of the subsidiary may
be recognized. In addition, dividends, loans and advances from certain
subsidiaries, including MLPF&S, to ML&Co. are restricted by net capital
requirements under the Exchange Act, and under rules of exchanges and other
regulatory bodies.

    

Limitations Upon Liens

   
     ML&Co. may not, and may not permit any majority-owned subsidiary to,
create, assume, incur or permit to exist any indebtedness for borrowed money
secured by a pledge, lien or other encumbrance, other than those liens
specifically permitted by the 1983 Indenture, on the Voting Stock owned
directly or indirectly by ML&Co. of any majority-owned subsidiary, other than a
majority-owned subsidiary which, at the time of the incurrence of the secured
indebtedness, has a net worth of less than $3,000,000, unless the outstanding
senior debt securities are secured equally and ratably with the secured
indebtedness.

     "Voting Stock" is defined in the 1983 Indenture as the stock of the class
or classes having general voting power under ordinary circumstances to elect at
least a majority of the board of directors, managers or trustees of a
corporation provided that, for the purposes of the 1983 Indenture, stock that
carries only the right to vote conditionally on the occurrence of an event is
not considered voting stock whether or not the event has happened.

    

Limitation on Disposition of Voting Stock of, and Merger and Sale of
Assets by, MLPF&S

   
         ML&Co. may not sell, transfer or otherwise dispose of any Voting Stock
of MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of its
Voting Stock, unless, after giving effect to any such transaction, MLPF&S
remains a Controlled Subsidiary.

     "Controlled Subsidiary" is defined in the 1983 Indenture to mean a
corporation more than 80% of the outstanding shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

     In addition, ML&Co. may not permit MLPF&S to:

     o    merge or consolidate, unless the surviving company is a Controlled
          Subsidiary, or
    

     o    convey or transfer its properties and assets substantially as an
          entirety, except to one or more Controlled Subsidiaries.

Merger and Consolidation

   
     ML&Co. may consolidate or merge with or into any other corporation and
ML&Co. may sell, lease or convey all or substantially all of its assets to any
corporation, provided that:

     o    the resulting corporation, if other than ML&Co., is a corporation
          organized and existing under the laws of the United States of America
          or any U.S. state and assumes all of ML&Co.'s obligations to:

          o    pay any amounts due and payable or deliverable with respect to
               all the senior debt securities; and

          o    perform and observe of all of ML&Co.'s obligations under the
               1983 Indenture, and

     o    ML&Co. or the successor corporation, as the case may be, is not,
          immediately after any consolidation or merger, in default under the
          1983 Indenture.
    

Modification and Waiver

   
     ML&Co. and the trustee may modify and amend the 1983 Indenture with the
consent of holders of at least 66 2/3% in principal amount of each outstanding
series of debt securities affected. However, without the consent of each holder
of any outstanding debt security affected, no amendment or modification to any
Indenture may:

     o    change the stated maturity date of the principal of, or any
          installment of interest or Additional Amounts payable on, any senior
          debt security or any premium payable on redemption , or change the
          redemption price;

     o    reduce the principal amount of, or the interest or Additional Amounts
          payable on, any senior debt security or reduce the amount of
          principal which could be declared due and payable before the stated
          maturity date;

     o    change the place or currency of any payment of principal or any
          premium, interest or Additional Amounts payable on any senior debt
          security;

     o    impair the right to institute suit for the enforcement of any payment
          on or with respect to any senior debt security;

     o    reduce the percentage in principal amount of the outstanding senior
          debt securities of any series, the consent of whose holders is
          required to modify or amend the 1983 Indenture; or

     o    modify the foregoing requirements or reduce the percentage of
          outstanding senior debt securities necessary to waive any past
          default to less than a majority.

     No modification or amendment of ML&Co.'s Subordinated Indenture or any
Subsequent Indenture for subordinated debt securities may adversely affect the
rights of any holder of ML&Co.'s senior indebtedness without the consent of
each holder affected. The holders of at least a majority in principal amount of
outstanding senior debt securities of any series may, with respect to that
series, waive past defaults under the Indenture and waive compliance by ML&Co.
with provisions in the 1983 Indenture, except as described under "--Events of
Default".

Events of Default

     Each of the following will be Events of Default with respect to senior
debt securities of any series:

     o    default in the payment of any interest or Additional Amounts payable
          when due and continuing for 30 days;

     o    default in the payment of any principal or premium when due;

     o    default in the deposit of any sinking fund payment, when due;

     o    default in the performance of any other obligation of ML&Co.
          contained in the Indenture for the benefit of that series or in the
          senior debt securities of that series, continuing for 60 days after
          written notice as provided in the 1983 Indenture;

     o    specified events in bankruptcy, insolvency or reorganization of
          ML&Co.; and

     o    any other Event of Default provided with respect to senior debt
          securities of that series which are not inconsistent with the 1983
          Indenture.

If an Event of Default occurs and is continuing for any series of senior debt
securities, other than as a result of the bankruptcy, insolvency or
reorganization of ML&Co., the Trustee or the holders of at least 25% in
principal amount of the outstanding senior debt securities of that series may
declare all amounts, or any lesser amount provided for in the senior debt
securities, due and payable or deliverable immediately. At any time after a
declaration of acceleration has been made with respect to senior debt
securities of any series but before the Trustee has obtained a judgment or
decree for payment of money , the holders of a majority in principal amount of
the outstanding senior debt securities of that series may rescind any
declaration of acceleration and its consequences, if all payments due, other
than those due as a result of acceleration, have been made and all Events of
Default have been remedied or waived.

     The holders of a majority in principal amount or aggregate issue price of
the outstanding debt securities of any series of senior debt securities may
waive an Event of Default with respect to that series, except a default:

     o    in the payment of any amounts due and payable or deliverable under
          the debt securities of that series; or

     o    in respect of an obligation or provision of any Indenture which
          cannot be modified under the terms of that Indenture without the
          consent of each holder of each series of debt securities affected.

     The holders of a majority in principal amount of the outstanding senior
debt securities of a series may direct the time, method and place of conducting
any proceeding for any remedy available to the Trustee or exercising any trust
or power conferred on the Trustee with respect to those senior debt securities,
provided that any direction shall not be in conflict with any rule of law or
the 1983 Indenture. Before proceeding to exercise any right or power under the
1983 Indenture at the direction of the holders, the Trustee shall be entitled
to receive from the holders reasonable security or indemnification against the
costs, expenses and liabilities which might be incurred by it in complying with
any direction.

     The securities and other series of senior debt securities issued under the
1983 Indenture do not have the benefit of any cross-default provisions with
other indebtedness of ML&Co.

     ML&Co. is required to furnish to the trustee annually a statement as to
the fulfillment by ML&Co. of all of its obligations under the 1983 Indenture.


                      WHERE YOU CAN FIND MORE INFORMATION

     We file reports, proxy statements and other information with the SEC. Our
SEC filings are also available over the Internet at the SEC's web site at
http://www.sec.gov. You may also read and copy any document we file by visiting
the SEC's public reference rooms in Washington, D.C., New York, New York, and
Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further
information about the public reference rooms. You may also inspect our SEC
reports and other information at the New York Stock Exchange, Inc., 20 Broad
Street, New York, New York 10005.

     We have filed a registration statement on Form S-3 with the SEC covering
the securities offered by this prospectus and other securities. For further
information on ML&Co. and the Securities, you should refer to our registration
statement and its exhibits. This prospectus summarizes material provisions of
contracts and other documents that we refer you to. Because the prospectus may
not contain all the information that you may find important, you should review
the full text of these documents. We have included copies of these documents as
exhibits to our registration statement of which this prospectus is a part.


               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

     The SEC allows us to incorporate by reference the information we file with
them, which means:

     o    incorporated documents are considered part of the prospectus;

     o    we can disclose important information to you by referring you to
          those documents; and

     o    information that we file with the SEC will automatically update and
          supersede this incorporated information.

     We incorporate by reference the documents listed below which were filed
with the SEC under the Exchange Act:

     o    annual report on Form 10-K for the year ended December 25, 1998; and

     o    current reports on Form 8-K dated December 28, 1998, January 19, 
          1999, February 17, 1999, February 18, 1999, February 22, 1999, 
          February 23, 1999 and March 26, 1999.

     We also incorporate by reference each of the following documents that we
will file with the SEC after the date of this prospectus until this offering is
completed or after the date of this initial registration statement and before
the effectiveness of the registration statement:

     o    reports filed under Sections 13(a) and (c) of the Exchange Act;

     o    definitive proxy or information statements filed under Section 14 of
          the Exchange Act in connection with any subsequent stockholders'
          meeting; and

     o    any reports filed under Section 15(d) of the Exchange Act.

     You should rely only on information contained or incorporated by reference
in this prospectus. We have not, and MLPF&S has not, authorized any other
person to provide you with different information. If anyone provides you with
different or inconsistent information, you should not rely on it. We are not,
and MLPF&S is not, making an offer to sell these securities in any jurisdiction
where the offer or sale is not permitted.

     You should assume that the information appearing in this prospectus is
accurate as of the date of this prospectus only. Our business, financial
condition and results of operations may have changed since that date.

     You may request a copy of any filings referred to above (excluding
exhibits), at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan, Jr., Corporate Secretary's Office, Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.


                              PLAN OF DISTRIBUTION

     This prospectus has been prepared in connection with secondary sales of
the securities and is to be used by MLPF&S when making offers and sales related
to market-making transactions in the securities.

     MLPF&S may act as principal or agent in these market-making transactions.

     The securities may be offered on the AMEX or off the exchange in
negotiated transactions or otherwise.

     The distribution of the securities will conform to the requirements set
forth in the applicable sections of Rule 2720 of the Conduct Rules of the NASD.
    


                                    EXPERTS

     The consolidated financial statements and the related financial statement
schedule incorporated in this prospectus by reference from the Annual
Report on Form 10-K of Merrill Lynch & Co., Inc. and subsidiaries have been
audited by Deloitte & Touche LLP, independent auditors, as stated in their
reports (which express an unqualified opinion and which report on the
consolidated financial statements includes an explanatory paragraph for the
change in accounting method for certain internal-use software development
costs), which are incorporated herein by reference, and have been so
incorporated in reliance upon the reports of such firm given upon their
authority as experts in accounting and auditing.

    

<PAGE>
   
The information in this prospectus is not complete and may be changed.  We may
not sell these  securities  until the  registration  statement  filed with the
Securities and Exchange  Commission is effective.  This  prospective is not an
offer to sell these  securities and it is not soliciting an offer to buy these
securities in any state where the offer or sale is not permitted.
    

                             Subject to Completion
                  Preliminary Prospectus dated March 29, 1999
   
PROSPECTUS
    
                           Merrill Lynch & Co., Inc.
   
                                 Japan Index(SM)
    
Equity Participation Securities with Minimum Return Protection due January 31,
2000


   
     This  prospectus  is to be used by Merrill  Lynch & Co.,  Merrill  Lynch,
Pierce, Fenner & Smith Incorporated,  our wholly-owned subsidiary, when making
offers and sales related to market-making transactions in the securities.


<TABLE>
<CAPTION>

<S>                                                            <C>

The Securities:                                                Payment at Maturity:
o 100%  principal  protection  at  maturity                    o On the  maturity  date,  for each security
o No  payments  before the  maturity  date                       you own,  we will pay you an amount
o Senior  unsecured debt  securities of Merrill Lynch &          equal to the sum of the principal amount
  Co., Inc.                                                      of each security and an additional
o Linked to the value of the Japan Index                         amount based on the percentage
o The securities are listed on the American Stock                increase, if any, in the value of the Japan
  Exchange under the symbol "MJP.A".                             Index as described in this prospectus.
                                                               o You will receive no less than $1,150 per
                                                                 $1,000 principal amount of your
                                                                 securities.

</TABLE>


                  Investing in the Securities involves risks.
                    See "Risk Factors" beginning on page 3.

    

     Neither the Securities and Exchange  Commission nor any state  securities
commission has approved or  disapproved  of these  securities or determined if
this prospectus is truthful or complete. Any representation to the contrary is
a criminal offense.

   
                                ---------------
    

                              Merrill Lynch & Co.
                                ---------------

   
                    The date of this prospectus is , 1999.


(SM) "Japan Index" is a service mark of The American Stock Exchange.
    


<PAGE>

   
                               TABLE OF CONTENTS

                                                                          Page
                                                                          ----

RISK FACTORS................................................................3

MERRILL LYNCH & CO., INC....................................................6

RATIO OF EARNINGS TO FIXED CHARGES..........................................7

DESCRIPTION OF SECURITIES...................................................8

THE INDEX..................................................................17

OTHER TERMS................................................................20

WHERE YOU CAN FIND MORE INFORMATION........................................24
    

INCORPORATION OF INFORMATION WE FILE WITH THE SEC..........................24

   
PLAN OF DISTRIBUTION.......................................................25

EXPERTS....................................................................25
    



<PAGE>


   
                                 RISK FACTORS

     Your investment in the securities will involve risks. You should
carefully consider the following discussion of risks before deciding whether
an investment in the securities is suitable for you.

You may not earn a return on your investment

     In addition to the principal amount of your securities, we will pay you
an amount at maturity based on the percentage increase, if any, in the value
of the Japan Index. We will determine this additional amount, if any, by
calculating the final average value of the Japan Index shortly before the
stated maturity date. You should be aware that if the final average value of
the Japan Index, calculated as described in this prospectus, does not exceed
195.46, the closing value of the Japan Index on January 20, 1994, by more than
approximately 13.04%, you will receive only the principal amount of your
securities and an additional amount equal to $150 for each $1,000 principal
amount of your securities. Therefore, the amount that we pay you at maturity
may be less than the return you could earn on other investments. Your yield
may be less than the yield you would earn if you bought a senior non-callable
debt security of Merrill Lynch & Co., Inc. with the same maturity date. Your
investment may not reflect the full opportunity cost to you when you take into
account factors that affect the time value of money.

     The Japan Index does not reflect the payment of dividends on the stocks
underlying it and therefore, in addition to the considerations regarding
averaging discussed below, the yield based on the Japan Index to the maturity
of the securities will not produce the same yield as if you purchased those
underlying stocks and held them for a similar period.

     Because the final average value of the Japan Index will be based upon
average values of the Japan Index during specified periods in three successive
years, a significant increase in the Japan Index as measured by the average
values during the specified period in the final year, or in any single earlier
year, may be substantially or entirely offset by the average values of the
Japan Index during the specified periods in the other two years.

     The index used to calculate any additional amounts payable to you on the
maturity date will initially be the Japan Index, which is currently calculated
and published by the AMEX. Upon the occurrence of certain events described
under "Description of Securities--Substitution of the Index", a New Japan
Index which will also relate to the trading of equity securities in Japan,
will be substituted for the Japan Index . The required characteristics of the
New Japan Index are described in this prospectus; however, the New Japan Index
does not currently exist, and the New Japan Index may be calculated and
published by a United States stock exchange other than the AMEX. In the event
that a New Japan Index is substituted for the Japan Index, no assurance can be
given as to whether any additional amounts payable to you on the maturity date
calculated on the basis of any New Japan Index will be more than or less than
or equal to the additional amount which would have been payable had any
substitution not occurred.

Your return may be affected by factors affecting the value of Japanese stocks

     Because the underlying stocks included in the Japan Index have been
issued by Japanese companies, the return on your securities will be affected
by risks relating to an investment in Japanese equity securities. The Japanese
securities markets may be more volatile than U.S. or other securities markets
and may be affected by market developments in different ways than U.S. or
other securities markets. Direct or indirect government intervention to
stabilize the Japanese securities markets and cross-shareholdings in Japanese
companies on those markets may affect prices and volume of trading on those
markets. Also, there is generally less publicly available information about
Japanese companies than about those U.S. companies that are subject to the
reporting requirements of the U.S. Securities and Exchange Commission, and
Japanese companies are subject to accounting, auditing and financial reporting
standards and requirements that differ from those applicable to U.S. reporting
companies.

     Securities prices in Japan are subject to political, economic, financial
and social factors that apply in Japan. In addition, recent or future changes
in the Japanese government's economic and fiscal policies, the possible
imposition of, or changes in, currency exchange laws or other Japanese laws or
restrictions applicable to Japanese companies or investments in Japanese
equity securities and fluctuations in the rate of exchange between currencies
may negatively affect the Japanese securities markets. Moreover, the Japanese
economy may differ favorably or unfavorably from the U.S. economy in economic
factors such as growth in gross national product, rates of inflation, capital
reinvestment, resources and self-sufficiency.

There are many factors affecting the trading value of the  securities

     The securities are listed on the AMEX. We expect that the secondary
market for the securities will be affected by our creditworthiness and by a
number of other factors. Because the final average value is an average of the
three values as described below, the price at which you will be able to sell
your securities in the secondary market may be at a discount if the first or
second value of the Japan Index is below the initial value.

     We expect that the trading value of the securities will depend primarily
on the extent of the appreciation, if any, of the Japan Index over its initial
value of 195.46. If, however, you sell your securities before the maturity
date at a time when the Japan Index exceeds its initial value, the price you
receive may be at a discount from the amount payable if that excess were to
exist at maturity of the securities because of the possible fluctuation in the
value of the Japan Index between the time of that sale and the maturity date
and the effect of the value of the Japan Index on the days used to calculate
the final average value of the Japan Index, if any. Furthermore, the price at
which you will be able to sell your securities before maturity may be at a
discount, which could be substantial, from the principal amount of your
securities, if, at that time, the Japan Index is below, equal to, or not
sufficiently above , the initial value of the Japan Index and/or if the value
of the Japan Index on the days used to calculate the final average value, if
any, was below, equal to or not sufficiently above the initial value. A
discount could also result from rising interest rates in the U.S.

     The trading values of the securities may be affected by a number of
interrelated factors, including our creditworthiness and those factors listed
below. The relationship among these factors is complex, including how these
factors affect the relative value of the principal amount of the securities
and any additional amounts to be paid at maturity. Accordingly, you should be
aware that factors other than the level of the Japan Index are likely to
affect the securities' trading value. The expected effect on the trading value
of the securities of each of the factors listed below, assuming in each case
that all other factors are held constant, is as follows:

     o    Interest Rates. In general, if U.S. interest rates increase, we
          expect the value of the securities to decrease. If U.S. interest
          rates decrease, we expect the value of the securities to increase.
          In general, if Japanese interest rates increase, we expect the value
          of the securities to increase. If Japanese interest rates decrease,
          we expect the value of the securities to decrease. Interest rates
          may also affect the Japanese economy, and, in turn, the value of the
          Japan Index. Rising interest rates may lower the value of the index
          and, thus, the securities. Falling interest rates may increase the
          value of the Japan Index and, thus, may increase the value of the
          securities.

     o    Volatility of the Japan Index. If the volatility of the Japan Index
          increases, we expect the trading value of the securities to
          increase. If the volatility of the Japan Index decreases, we expect
          the trading value of the securities to decrease.

     o    Time Remaining to Maturity. We anticipate that before their
          maturity, the securities may trade at a value above that which may
          be inferred from the level of interest rates and the index. This
          difference will reflect a "time premium" due to expectations
          concerning the value of the Japan Index during the period before the
          maturity of the securities. As the time remaining to maturity of the
          securities decreases, however, this time premium is expected to
          decrease, thus decreasing the trading value of the securities. In
          addition, the price at which you may be able to sell your securities
          before maturity may be at a discount, which may be substantial, from
          the minimum expected value at maturity if one or more values of the
          Japan Index used to calculate any additional amounts payable at
          maturity were below, equal to or not sufficiently above the initial
          value.

     o    Dividend Rates in Japan. If dividend rates on the stocks comprising
          the Japan Index increase, we expect the value of the securities to
          decrease. Conversely, if dividend rates on the stocks comprising the
          Japan Index decrease, we expect the value of the securities to
          increase. However, in general, rising Japanese corporate dividend
          rates may increase the value of the Japan Index and, in turn,
          increase the value of the securities. Conversely, falling Japanese
          dividend rates may decrease the value of the Japan Index and, in
          turn, decrease the value of the securities.

     Although the stocks comprising the Japan Index are traded in Japanese yen
and the securities are denominated in U.S. dollars, any additional amounts
payable at the maturity date will not be adjusted for the currency exchange
rate in effect at the maturity of the securities. This additional amount is
based upon the percentage increase in the Japan Index. The Japan Index is
calculated using a constant U.S.$/Japanese Yen exchange rate. The value of the
securities should not, therefore, be directly affected by the currency
exchange rate. For example, if the Japan Index were to increase by 25% from
its initial value to the final average value, you would receive $287.50 per
$1,000 principal amount of your securities at maturity regardless of the
U.S.$/Japanese Yen exchange rate prevailing at maturity. Changes in the
exchange rate, however, may reflect changes in the Japanese economy which, of
course, would affect the value of the index and the securities.

Amounts payable on the MITTS Securities may be limited by state law

     New York State laws govern the 1983 Indenture under which the securities
were issued. New York has certain usury laws that limit the amount of interest
that can be charged and paid on loans, which includes debt securities like the
securities. Under present New York law, the maximum rate of interest is 25%
per annum on a simple interest basis. This limit may not apply to debt
securities in which $2,500,000 or more has been invested.

     While we believe that New York law would be given effect by a state or
Federal court sitting outside of New York, many other states also have laws
that regulate the amount of interest that may be charged to and paid by a
borrower. We will promise, for the benefit of the securities holders, to the
extent permitted by law, not to voluntarily claim the benefits of any laws
concerning usurious rates of interest.
    

Other Considerations

   
     You should reach an investment decision with regard to the securities
only after carefully considering the suitability of the securities in light of
your particular circumstances.

     You should also consider the tax consequences of investing in the
securities and should consult your tax advisors.
    

<PAGE>

   
                           MERRILL LYNCH & CO., INC.

     We are a holding company that, through our U.S. and non-U.S. subsidiaries
and affiliates such as Merrill Lynch, Pierce, Fenner & Smith Incorporated,
Merrill Lynch Government Securities Inc., Merrill Lynch Capital Services,
Inc., Merrill Lynch International, Merrill Lynch Capital Markets Bank Ltd.,
Merrill Lynch Asset Management L.P. and Merrill Lynch Mercury Asset
Management, provides investment, financing, advisory, insurance, and related
products on a global basis, including:

     o    securities brokerage, trading and underwriting;

     o    investment banking, strategic services, including mergers and
          acquisitions and other corporate finance advisory activities;

     o    asset management and other investment advisory and recordkeeping
          services;

     o    trading and brokerage of swaps, options, forwards, futures and other
          derivatives;

     o    securities clearance services;

     o    equity, debt and economic research;

     o    banking, trust and lending services, including mortgage lending and
          related services; and

     o    insurance sales and underwriting services.

     We provide these products and services to a wide array of clients,
including individual investors, small businesses, corporations, governments,
governmental agencies and financial institutions.

     Our principal executive office is located at World Financial Center,
North Tower, 250 Vesey Street, New York, New York 10281; our telephone number
is (212) 449-1000.

     If you want to find more information about us, please see the sections
entitled "Where You Can Find More Information" and "Incorporation of
Information We File with the SEC" in this prospectus.

     In this prospectus, "ML&Co.", "we", "us" and "our" refer specifically to
Merrill Lynch & Co., Inc., the holding company. ML&Co. is the issuer of the
Securities described in this prospectus.
    



<PAGE>


   
                      RATIO OF EARNINGS TO FIXED CHARGES

     In 1998, we acquired the outstanding shares of Midland Walwyn, Inc., in a
transaction accounted for as a pooling-of-interests. The following information
for the fiscal years 1994 through 1997 has been restated as if the two
entities had always been combined.

     The following table sets forth our historical ratios of earnings to fixed
charges for the periods indicated:

                                   
                                            Year Ended Last Friday in December
                                       1994     1995     1996     1997     1998
                                       ----     ----     ----     ----     ----
Ratio of earnings to fixed
charges(a) ........................    1.2      1.2      1.2      1.2      1.1 
- ----------                         

(a) The effect of combining Midland Walwyn did not change the ratios reported
    for the fiscal years 1994 through 1997.

     For the purpose of calculating the ratio of earnings to fixed charges,
"earnings" consist of earnings from continuing operations before income taxes
and fixed charges, excluding capitalized interest and preferred security
dividend requirements. "Fixed charges" consist of interest costs, the interest
factor in rentals, amortization of debt issuance costs, preferred security
dividend requirements of subsidiaries, and capitalized interest.
    

<PAGE>

                           DESCRIPTION OF SECURITIES

   
     The securities were issued as a series of senior debt securities under
the 1983 Indenture, dated as of April 1, 1983, as amended and restated, which
is more fully described in this prospectus.

     The securities will mature on January 31, 2000.

     While at maturity a beneficial owner of a security will receive the
principal amount of that security plus the Supplemental Redemption Amount,
there will be no payment of interest, periodic or otherwise. See "Payment at
Maturity", below.

     The securities are not subject to redemption by ML&Co. or at the option
of any beneficial owner before maturity. Upon the occurrence of an Event of
Default with respect to the securities, beneficial owners of the securities
may accelerate the maturity of the securities, as described under "Description
of Securities--Events of Default and Acceleration" and "Other Terms--Events of
Default" in this prospectus.

     The securities were issued in denominations of $1,000 and integral
multiples of $1,000.
    

Payment at Maturity

   
     At maturity, a beneficial owner of a security will be entitled to receive
the principal amount of each security plus a Supplemental Redemption Amount,
if any, all as provided below. If the Final Average Value of the index does
not exceed the Initial Value by more than approximately 13.04% a beneficial
owner of a Security will be entitled to receive only the principal amount of
each security and the Minimum Supplemental Redemption Amount. Although the
index will initially be the Japan Index, under certain circumstances described
herein a New Japan Index may be substituted for the Japan Index.

     At maturity, a beneficial owner of a security will be entitled to
receive, with respect to each security:

     o the principal amount , and

     o the "Supplemental Redemption Amount" equal in amount to:

          principal amount    x    Final Average Value-Initial Value  x  115%
                                   ---------------------------------
                                            Initial Value

provided, that the Supplemental Redemption Amount will not be less than the
Minimum Supplemental Redemption Amount of $150 per $1,000 principal amount of
securities.

     The "Initial Value" equals 195.46, the closing value of the Japan Index
on January 20, 1994; provided, however, that a new Initial Value will be
calculated as described in this prospectus if a New Japan Index is substituted
for the Japan Index.

     The "Final Average Value" of the Japan Index will be determined by State
Street Bank and Trust Company, the calculation agent and will equal the
arithmetic average or the arithmetic mean of the Yearly Values, as defined
below, for 1998, 1999 and 2000. The Yearly Value for any year will be
calculated during the Calculation Period for that year which will be from and
including January 22 in 1998, January 21 in 1999 and January 20 in 2000 to and
including the fifth scheduled Business Day after each date. The Yearly Value
for each year will equal the arithmetic average or arithmetic mean of the
closing values of the index on the first Business Day in the applicable
Calculation Period, provided that a Market Disruption Event shall not have
occurred on that day and on each succeeding Business Day, provided that a
Market Disruption Event shall not have occurred on the applicable day up to
and including the last Business Day in the applicable Calculation Period
(each, a "Calculation Date") until the calculation agent has so determined the
closing values for five Business Days. If a Market Disruption Event occurs on
two or more of the Business Days during a Calculation Period, the Yearly Value
for the relevant year will equal the average of the values on Business Days on
which a Market Disruption Event did not occur during the Calculation Period
or, if there is only one Business Day, the value on such day. If a Market
Disruption Event occurs on all Business Days during a Calculation Period, the
Yearly Value for the relevant year shall equal the closing value of the Index
on the last Business Day of the Calculation Period regardless of whether a
Market Disruption Event shall have occurred on that day. A Yearly Value may be
restated if the Substitution Event occurs after the determination of the
Yearly Value, see "Substitution of the Index".

     A "Business Day", for purposes of determining the Final Average Value, is
a day on which the Relevant Stock Exchange is open for trading.

     "Relevant Stock Exchange" means the American Stock Exchange or, if a New
Japan Index has been substituted for the Japan Index, the U.S. stock exchange
that publishes such New Japan Index. All determinations made by the
calculation agent shall be at the sole discretion of the calculation agent
and, absent a determination by the calculation agent of a manifest error,
shall be conclusive for all purposes and binding on ML&Co. and beneficial
owners of the securities.

     The following table illustrates, for a range of hypothetical Final
Average Values, the total amount payable at maturity for each $1,000 principal
amount of securities.
    


                                                                     Total
              Hypothetical Final           Percentage               Amount
               Average Value of            Change Over            Payable at
               the Japan Index            Initial Value            Maturity
              ------------------          -------------           ----------
                    97.73                     -50%                 $1,150
                   117.28                     -40%                 $1,150
                   136.82                     -30%                 $1,150
                   156.37                     -20%                 $1,150
                   175.91                     -10%                 $1,150
                   195.46(1)                    0%                 $1,150
                   215.01                      10%                 $1,150
                   234.55                      20%                 $1,230
                   254.10                      30%                 $1,345
                   273.64                      40%                 $1,460
                   293.19                      50%                 $1,575
                   312.74                      60%                 $1,690
                   332.28                      70%                 $1,805
                   351.83                      80%                 $1,920
                   371.37                      90%                 $2,035
                   390.92                     100%                 $2,150
                   410.47                     110%                 $2,265
                   430.01                     120%                 $2,380

   
(1)     The Initial Value.

     The above figures are for purposes of illustration only. The actual total
redemption amount received by investors will depend entirely on the actual
Final Average Value determined by the calculation agent as provided herein.
Because the Final Average Value will be based upon average values of the index
which may be a New Japan Index substituted for the Japan Index, during
specified periods in three successive years, a significant increase or
decrease in the index as measured by the average values during the specified
period in any year may be substantially or entirely offset by the average
values of the Index during the specified periods in the other two years.

     You should review the historical performance of the Japan Index. The
historical performance of the Japan Index should not be taken as an indication
of future performance, and no assurance can be given that the Japan Index will
increase sufficiently to cause the beneficial owners of the securities to
receive an amount in excess of the principal amount and the Minimum
Supplemental Redemption Amount at the maturity of the securities.
    

Adjustments to the Index; Market Disruption Event

   
     If at any time the method of calculating the index, or its value , is
changed in a material respect, or if the index is in any other way modified so
that the index does not, in the opinion of the calculation agent, fairly
represent the value of the index had these changes or modifications not been
made, then, from and after that time, the calculation agent shall, at the
close of business in New York, New York, on each date that the closing value
with respect to the Final Average Value is to be calculated, make any
adjustments as, in the good faith judgment of the calculation agent, may be
necessary in order to arrive at a calculation of a value of a stock index
comparable to the index as if no changes or modifications had been made, and
calculate the closing value with reference to the index, as adjusted.
Accordingly, if the method of calculating the index is modified so that the
value of the index is a fraction or a multiple of what it would have been if
it had not been modified, e.g., due to a split in the index, then the
calculation agent shall adjust the index in order to arrive at a value of the
index as if it had not been modified, e.g., as if the split had not occurred.

     "Market Disruption Event" means either of the following events on a
Business Day during a Calculation Period, as determined by the calculation
agent:

     (a)  a suspension or absence of trading on the TSE of 20% or more of the
          Underlying Stocks which then comprise the index or a Successor Index
          during the one-half hour period preceding the close of trading on
          the TSE; or

     (b)  the suspension or material limitation on the Singapore International
          Monetary Exchange Ltd. (the "SIMEX"), Osaka Securities Exchange (the
          "OSE") or the Relevant Stock Exchange or any other major securities
          market of trading in futures or options contracts related to the
          index during the one-half hour period preceding the close of trading
          on the applicable exchange.
    

     For purposes of determining whether a Market Disruption Event has
occurred:

   
     o    a limitation on the hours or number of days of trading will not
          constitute a Market Disruption Event if it results from an announced
          change in the regular business hours of the relevant exchange,

     o    a decision to permanently discontinue trading in the relevant
          contract will not constitute a Market Disruption Event,

     o    a suspension of trading in a futures or options contract on the
          index by the Relevant Stock Exchange or other major securities
          market by reason of

            o  a price change exceeding limits set by the Relevant Stock
               Exchange or securities market,

            o  an imbalance of orders relating to any contracts or

            o  a disparity in bid and ask quotes relating to any contracts
               will constitute a suspension or material limitation of trading
               in futures or options contracts related to the index and

     o    an "absence of trading" on the SIMEX, OSE, the Relevant Stock
          Exchange or a major securities market on which futures or options
          contracts related to the index are traded will not include any time
          when the SIMEX, OSE, the Relevant Stock Exchange or such securities
          market, as the case may be, itself is closed for trading under
          ordinary circumstances.
    

Substitution of the Index

   
     Movements in the Japan Index correspond generally to movements in the
Nikkei 225 Index published by Nihon Keizai Shimbun, Inc. ("NKS"), which is
currently the most widely utilized index relating to Japanese equity
securities, as measured by trading volume and open interest relating to the
futures contract on the index or also known as the "Nikkei 225 Futures
Contract". In October of 1993, NKS commenced the calculation and publication
of a new broad-based, capitalization-weighted index referred to as the Nikkei
300 Index or also known as the "Nikkei 300 Index". Unlike the Nikkei 225
Index, which is a price-weighted index of 225 Japanese companies listed in the
First Section of the TSE, the Nikkei 300 Index is a capitalization-weighted
index of 300 Japanese companies listed in the First Section of the TSE. See
"The Index--The New Japan Index" for a description of the Nikkei 300 Index.
The OSE announced that, if a broad-based, capitalization-weighted index were
introduced on the TSE, the OSE expected to establish a new futures contract on
that index. Although the OSE has not as of the date of this prospectus
introduced a new futures contract on the Nikkei 300 Index, any such contract
which it may introduce at some future date is referred to in this prospectus
as the "Nikkei 300 Futures Contract".

     If the Nikkei 300 Futures Contract is introduced and publicly traded on
an exchange in Japan, and such contract develops trading volume and open
interest exceeding that of the Nikkei 225 Futures Contract, ML&Co. believes
this would indicate that the Nikkei 300 Futures Contract will have become more
widely utilized than the Nikkei 225 Futures Contract. Therefore, in the event
that a Nikkei 300 Futures Contract is publicly traded at some future date on
an exchange in Japan and each of the additional conditions described below are
fulfilled, a New Japan Index will be substituted for the Japan Index. From and
after that time, the index used to determine the Supplemental Redemption
Amount with respect to the securities will be the New Japan Index. Upon the
substitution of the New Japan Index for the Japan Index, ML&Co. will cause
notice thereof to be given to holders of the securities. Such notice will also
state that, for purposes of calculating the Supplemental Redemption Amount, an
adjusted Initial Value will be substituted for the original Initial Value. The
adjusted Initial Value will be calculated as follows:
    

        Initial Value of Japan Index     x    current value of New Japan Index
        ----------------------------
       current value of Japan Index

   
where the  current  values of the Japan  Index and of the New Japan  Index  will
equal their respective  levels reported by the relevant exchange at the close of
business on the day that the calculation  agent  substitutes the New Japan Index
for the Japan Index. If the Substitution Event occurs after the determination of
a Yearly  Value,  the Yearly  Value will be  restated  in terms of the New Japan
Index under the following formula:
    

        Yearly Value prior to restatement      x      adjusted Initial Value
        ---------------------------------
              original Initial Value

   
The  Supplemental  Redemption  Amount will then be calculated using the restated
Yearly Value.

     A "Substitution Event" will have occurred if, as determined by the
calculation agent, whose opinion shall be conclusive and binding on ML&Co. and
on the holders of the Securities, the following conditions are fulfilled:

     (a)  Nikkei 300 Futures Contracts shall be introduced and publicly traded
          on an exchange in Japan; and


     (b)  The AMEX or another United States securities exchange publishes on a
          basis not less regularly than each day on which such exchange and
          the TSE are open for trading an index (the "New Japan Index") which:

          o    for a period of 90 days immediately preceding the date of the
               Substitution Event has a correlation based on daily, closing
               value to closing value, percentage changes of not less than 90%
               with the Nikkei 300 Index; and

          o    an option, warrant or other security which has payments
               determined by reference to the New Japan Index has been
               approved to be listed on a national securities exchange by the
               SEC; and

     (c)  Either of the following has occurred:

          o    the Nikkei 225 Index is no longer published and/or the Nikkei
               225 Futures have been delisted from trading on the OSE; or 

          o    the Nikkei 300 Futures Contracts publicly traded on exchanges
               in Japan have

               o    greater average daily volume and

               o    greater average daily open interest than the Nikkei 225
                    Futures Contracts which trade on the OSE, each for any
                    three-month period before the date of the Substitution
                    Event, commencing on a futures expiration date on the OSE
                    and ending on the following futures expiration date; and

     (d)  To the extent required, ML&Co. shall have obtained any license
          necessary to use the New Japan Index as described in this
          prospectus. ML&Co. has agreed in the securities to use its
          reasonable efforts to obtain any such license.

     Notwithstanding the above, unless the Nikkei 225 Index is no longer
published and/or the Nikkei 225 Futures Contracts shall have been delisted
from trading on the OSE, a Substitution Event will not be deemed to have
occurred on any of the 180 days next preceding the maturity date of the
securities.

     All disclosure contained in this prospectus regarding the Nikkei 225
Index, Nikkei 225 Futures Contract, Nikkei 300 Index, Nikkei 300 Futures
Contract, or their publisher, NKS, is derived from publicly available
information as of January 20, 1994. NKS has no relationship with ML&Co. or the
securities; it does not sponsor, endorse, authorize, sell or promote the
securities, and has no obligation or liability in connection with the
administration, marketing or trading of the securities.
    

Discontinuance of the Index

   
     If the AMEX discontinues publication of the Japan Index or, if a New
Japan Index has been substituted for the Japan Index, publication of the New
Japan Index has been discontinued and the AMEX or another entity publishes a
successor or substitute index that the calculation agent determines, in its
sole discretion, to be comparable to the index (a "Successor Index"), then,
upon the calculation agent's notification of any determination to the Trustee
and ML&Co., the calculation agent will substitute the Successor Index as
calculated by the American Stock Exchange or any other entity for the Japan
Index or the New Japan Index, as the case may be, and calculate the Final
Average Value as described above under "Payment at Maturity". Upon any
selection by the calculation agent of a Successor Index, ML&Co. shall cause
notice to be given to holders of the securities.

     If the AMS discontinues publication of the Japan Index or, if a New Japan
Index has been substituted for the Japan Index, publication of the New Japan
Index has been discontinued and a Successor Index is not selected by the
calculation agent or is no longer published on any of the Calculation Dates,
the value to be substituted for the index for any Calculation Date used to
calculate the Supplemental Redemption Amount at maturity will be a value
computed by the calculation agent for each Calculation Date in accordance with
the procedures last used to calculate the index before any discontinuance. If
a Successor Index is selected or the calculation agent calculates a value as a
substitute for the index as described below, the Successor Index or value
shall be substituted for the index for all purposes, including for purposes of
determining whether a Market Disruption Event exists.

     If the AMEX discontinues publication of the Japan Index or, if a New
Japan Index has been substituted for the Japan Index, publication of the New
Japan Index has been discontinued, before the period during which the
Supplemental Redemption Amount is to be determined and the calculation agent
determines that no Successor Index is available at such time, then on each
Business Day until the earlier to occur of

     o   the determination of the Final Average Value; and
    

     o   a determination by the Calculation Agent that a Successor Index is
         available,

   
the calculation agent shall determine the value that would be used in
computing the Supplemental Redemption Amount as described in the preceding
paragraph as if that day were a Calculation Date. The calculation agent will
cause notice of each value to be published not less often than once each month
in The Wall Street Journal or another newspaper of general circulation, and
arrange for information with respect to these values to be made available by
telephone.

     Notwithstanding these alternative arrangements, discontinuance of the
publication of the index may adversely affect trading in the Securities.
    

Events of Default and Acceleration

   
     In case an Event of Default with respect to any securities shall have
occurred and be continuing, the amount payable to a beneficial owner of a
security upon any acceleration permitted by the securities will be equal to:

     o   the principal amount , plus
    

     o   an additional amount of contingent interest calculated as though the
         date of early repayment were the maturity date of the Securities.

   
The Calculation Period used to calculate the final Yearly Value of the
securities so accelerated will begin on the eighth scheduled Business Day next
preceding the scheduled date for early redemption. If the final Yearly Value
is the only Yearly Value which shall have been calculated with respect to the
securities, the final Yearly Value will be the Final Average Value. If one or
two other Yearly Values shall have been calculated with respect to the
securities for prior years when the securities shall have been outstanding,
the average (arithmetic mean) of the final Yearly Value and one other Yearly
Value or two other Yearly Values, as the case may be, will be the Final
Average Value. The Minimum Supplemental Redemption Amount with respect to any
early redemption date will be an amount equal to the interest which would have
accrued on the Securities from and including the date of original issuance to
but excluding the date of early redemption at an annualized rate of 2.33%,
calculated on a semiannual bond equivalent basis. See "Description of
Securities--Payment at Maturity" in this prospectus.

     If a bankruptcy proceeding is commenced in respect of ML&Co., the claim
of the beneficial owner of a security may be limited, under Section 502(b)(2)
of Title 11 of the United States Code, to the principal amount of the security
plus an additional amount of contingent interest calculated as though the date
of the commencement of the proceeding were the maturity date of the
securities.

     In case of default in payment at the maturity date of the securities
whether at their stated maturity or upon acceleration, from and after the
maturity date the securities shall bear interest, payable upon demand of their
beneficial owners , at the rate of 5.5% per annum, to the extent that payment
of such interest shall be legally enforceable, on the unpaid amount due and
payable on such date in accordance with the terms of the securities to the
date payment of this amount has been made or duly provided for.

Global Securities

     Description of the Global Securities

     Beneficial owners of the securities may not receive physical delivery of
the securities nor may they be entitled to have the securities registered in
their names. The securities currently are represented by one or more fully
registered global securities. Each global security was deposited with, or on
behalf of, The Depository Trust Company or DTC (DTC, together with any
successor thereto, being a "depositary"), as depositary, registered in the
name of Cede & Co. (DTC's partnership nominee). Unless and until it is
exchanged in whole or in part for Securities in definitive form, no global
security may be transferred except as a whole by the depositary to a nominee
of the depositary or by a nominee of the depositary to the depositary or
another nominee of the depositary or by the depositary or any such nominee to
a successor of the depositary or a nominee of that successor.

     So long as DTC, or its nominee, is a registered owner of a global
security, DTC or its nominee, as the case may be, will be considered the sole
owner or holder of the securities represented by a global security for all
purposes under the 1983 Indenture. Except as provided below, the beneficial
owners of the securities represented by a global security will not be entitled
to have the securities represented by the global security registered in their
names, will not receive or be entitled to receive physical delivery of the
securities in definitive form and will not be considered the owners or holders
under the 1983 Indenture, including for purposes of receiving any reports
delivered by ML&Co. or the trustee under the 1983 Indenture. Accordingly, each
person owning a beneficial interest in a global security must rely on the
procedures of DTC and, if that person is not a participant of DTC on the
procedures of the participant through which such person owns its interest, to
exercise any rights of a holder under the 1983 Indenture. ML&Co. understands
that under existing industry practices, in the event that ML&Co. requests any
action of holders or that an owner of a beneficial interest in a global
security desires to give or take any action which a holder is entitled to give
or take under the 1983 Indenture, DTC would authorize the participants holding
the relevant beneficial interests to give or take any action, and the
participants would authorize beneficial owners owning through those
participants to give or take action or would otherwise act upon the
instructions of beneficial owners. Conveyance of notices and other
communications by DTC to participants, by participants to indirect
participants and by participants and indirect participants to beneficial
owners will be governed by arrangements among them, subject to any statutory
or regulatory requirements as may be in effect from time to time.

     DTC Procedures

     The following is based on information furnished by DTC:

     DTC is the securities depositary for the securities. The securities were
issued as fully registered securities registered in the name of Cede & Co.,
DTC's partnership nominee. One or more fully registered global securities were
issued for the securities in the aggregate principal amount of the securities,
and were deposited with DTC.

     DTC is a limited-purpose trust company organized under the New York
Banking Law, a "banking organization" within the meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing corporation"
within the meaning of the New York Uniform Commercial Code, and a "clearing
agency" registered under to the provisions of Section 17A of the Securities
and Exchange Act of 1934, as amended. DTC holds securities that its
participants deposit with DTC. DTC also facilitates the settlement among
participants of securities transactions, such as transfers and pledges, in
deposited securities through electronic computerized book-entry changes in
participants' accounts, thereby eliminating the need for physical movement of
securities certificates. Direct participants of DTC include securities brokers
and dealers, banks, trust companies, clearing corporations and other
organizations. DTC is owned by a number of its direct participants and by the
New York Stock Exchange, the AMEX and the National Association of Securities
Dealers, Inc. Access to the DTC's system is also available to others such as
securities brokers and dealers, banks and trust companies that clear through
or maintain a custodial relationship with a direct participant, either
directly or indirectly. The rules applicable to DTC and its participants are
on file with the SEC.

     Purchases of securities under DTC's system must be made by or through
direct participants, which will receive a credit for the securities on DTC's
records. The ownership interest of each beneficial owner is in turn to be
recorded on the records of direct and indirect participants. Beneficial owners
will not receive written confirmation from DTC of their purchase, but
beneficial owners are expected to receive written confirmations providing
details of the transaction, as well as periodic statements of their holdings,
from the direct participants or indirect participants through which the
beneficial owner entered into the transaction. Transfers of ownership
interests in the securities are to be accomplished by entries made on the
books of participants acting on behalf of beneficial owners.

     To facilitate subsequent transfers, all securities deposited with DTC are
registered in the name of DTC's partnership nominee, Cede & Co. The deposit of
securities with DTC and their registration in the name of Cede & Co. effect no
change in beneficial ownership. DTC has no knowledge of the actual beneficial
owners of the securities; DTC's records reflect only the identity of the
direct participants to whose accounts the securities are credited, which may
or may not be the beneficial owners. The participants will remain responsible
for keeping account of their holdings on behalf of their customers.

     Conveyance of notices and other communications by DTC to direct
participants, by direct participants to indirect participants, and by direct
and indirect participants to beneficial owners will be governed by
arrangements among them, subject to any statutory or regulatory requirements
as may be in effect from time to time.

     Neither DTC nor Cede & Co. will consent or vote with respect to the
securities. Under its usual procedures, DTC mails an omnibus proxy to ML&Co.
as soon as possible after the applicable record date. The omnibus proxy
assigns Cede & Co.'s consenting or voting rights to those direct participants
identified in a listing attached to the omnibus proxy to whose accounts the
securities are credited on the record date identified in a listing attached to
the omnibus proxy.

     Principal, premium, if any, and/or interest, if any, payments on the
securities will be made in immediately available funds to DTC. DTC's practice
is to credit direct participants' accounts on the applicable payment date in
accordance with their respective holdings shown on the depositary's records
unless DTC has reason to believe that it will not receive payment on that
date. Payments by participants to beneficial owners will be governed by
standing instructions and customary practices, as is the case with securities
held for the accounts of customers in bearer form or registered in "street
name", and will be the responsibility of the participant and not of DTC, the
trustee or ML&Co., subject to any statutory or regulatory requirements as may
be in effect from time to time. Payment of principal, premium, if any, and/or
interest, if any, to DTC is the responsibility of ML&Co. or the trustee,
disbursement of payments to direct participants is the responsibility of DTC,
and disbursement of payments to the beneficial owners is the responsibility of
direct and indirect participants.

     Exchange for Certificated Securities

     If:

     o    the depositary is at any time unwilling or unable to continue as
          depositary and a successor depositary is not appointed by ML&Co.
          within 60 days,

     o    ML&Co. executes and delivers to the trustee a company order to the
          effect that the global securities shall be exchangeable, or

     o    an Event of Default under the 1983 Indenture has occurred and is
          continuing with respect to the securities,

the global securities will be exchangeable for securities in definitive form
of like tenor and of an equal aggregate principal amount, in denominations of
$10 and integral multiples of $10. The definitive securities will be
registered in the name or names as the depositary shall instruct the trustee.
It is expected that instructions may be based upon directions received by the
depositary from participants with respect to ownership of beneficial interests
in the global securities.

     In addition, ML&Co. may decide to discontinue use of the system of
book-entry transfers through the Depositary. In that event, Securities in
definitive form will be printed and delivered.

     The information in this section concerning DTC and DTC's system has been
obtained from sources that ML&Co. believes to be reliable, but ML&Co. takes no
responsibility for its accuracy.

Same-Day Settlement and Payment

     All payments of principal and the Supplemental Redemption Amount, if any,
will be made by ML&Co. in immediately available funds so long as the
securities are maintained in book-entry form.
    

<PAGE>

                                   THE INDEX

The Japan Index

   
     The index for purposes of calculating the Supplemental Redemption Amount
will initially be the Japan Index. This information reflects the policies of
the American Stock Exchange; such policies are subject to change in the
discretion of the American Stock Exchange.

     The Japan Index is a stock index calculated, published and disseminated
by the American Stock Exchange that measures the composite price performance
of selected Japanese stocks. The Japan Index is based on highly capitalized
Underlying Stocks trading on the TSE representing a broad cross-section of
Japanese industries. All the Underlying Stocks are stocks listed in the First
Section of the TSE. Stocks listed in the First Section are among the most
actively traded stocks on the Tokyo Stock Exchange. Options contracts on the
Japan Index are traded on the American Stock Exchange.

     The level of the Japan Index is disseminated via the Consolidated Tape
Authority Network-B, commonly referred to as the "American Stock Exchange
Tape". The American Stock Exchange Tape symbol for the Japan Index is "JPN".
The level of the Japan Index is calculated once per day using last sale prices
only, i.e., not "special bid quotes" or "special ask quotes" which are used in
connection with other stock indices, for transactions in Underlying Stock on
the TSE.

     The Japan Index is a modified, price-weighted index, i.e., an Underlying
Stock's weight in the index is based on its price per share rather than the
total market capitalization of the issuer, which is calculated by
    

     o    multiplying the per share price of each Underlying Stock by the
          corresponding weighing factor for such Underlying Stock (a "Weight
          Factor"),

   
     o    calculating the sum of all these products, and

     o    dividing such sums by a divisor.

     The divisor, initially set in September 1990 at 9,799,460, was 9,608,946
as of January 20, 1994, and is subject to periodic adjustments as set forth
below. Each Weight Factor is computed by dividing Y50 by the par value of the
relevant Underlying Stock and multiplying the result by 100, so that the share
price of each Underlying Stock when multiplied by its Weight Factor
corresponds to a share price based on a uniform par value of Y50. Each Weight
Factor represents the number of shares of the related Underlying Stock which
are included in one trading unit of the Japan Index.

     In order to maintain continuity in the level of the Japan Index in the
event of certain changes due to non-market factors affecting the Underlying
Stocks, such as the addition or deletion of stocks, substitution of stocks,
stock dividends, stock splits or distributions of assets to stockholders, the
divisor used in calculating the Japan Index is adjusted in a manner designed
to prevent any instantaneous change or discontinuity in the level of the Japan
Index. Thereafter, the divisor remains at the new value until a further
adjustment is necessary as the result of another change. As a result of each
change affecting any Underlying Stock, the divisor is adjusted in such a way
that the sum of all share prices immediately after such change multiplied by
the applicable Weight Factor and divided by the new divisor, i.e., the level
of the Japan Index immediately after such change, will equal the level of the
Japan Index immediately before the change.

     Underlying Stocks may be deleted or added by the AMEX. However, to
maintain continuity in the Japan Index, the policy of the AMEX is generally
not to alter the composition of the Underlying Stocks except when an
Underlying Stock is deleted due to

     o    bankruptcy of the issuer,

     o    merger of the issuer with, or acquisition of the issuer by, another
          company,

     o    delisting of such stock, or

     o    failure of such stock to meet, upon periodic review by the AMEX,
          market value and trading volume criteria established by the AMEX (as
          such may change from time to time).

Upon deletion of a stock from the Underlying Stocks, the AMEX may select a
suitable replacement for the deleted Underlying Stock. The policy of the AMEX
is to announce any change in advance via distribution of an information
circular.

     The AMEX is under no obligation to continue the calculation and
dissemination of the Japan Index. The securities are not sponsored, endorsed,
sold or promoted by the AMEX. No inference should be drawn from the
information contained in this prospectus that the AMEX makes any
representation or warranty, implied or express, to ML&Co., beneficial owners
of the securities or any member of the public regarding the advisability of
investing in securities generally or in the securities in particular or the
ability of the Japan Index to track general stock market performance. The AMEX
has no obligation to take the needs of ML&Co. or beneficial owners of the
securities into consideration in determining, composing or calculating the
Japan Index. The AMEX is not responsible for, and has not participated in the
determination or calculation of the equation by which the Supplemental
Redemption Amount with respect to the securities will be determined. The AMEX
has no obligation or liability in connection with the administration,
marketing or trading of the securities.

     The use of and reference to the Japan Index in connection with the
Securities has been consented to by the AMEX, the publisher of the Japan
Index. "Japan Index" is a service mark of the AMEX.

     None of ML&Co., the calculation agent and MLPF&S accepts any
responsibility for the calculation, maintenance or publication of the Japan
Index or any Successor Index. The AMEX disclaims all responsibility for any
errors or omissions in the calculation and dissemination of the Japan Index or
the manner in which such index is applied in determining the Supplemental
Redemption Amount with respect to the securities.

     You should review the historical performance of the index. The historical
performance of the index should not be taken as an indication of future
performance, and no assurance can be given that the index will increase
sufficiently to cause the beneficial owners of the securities to receive an
amount in excess of the principal amount and the Minimum Supplemental
Redemption Amount at the maturity of the securities.
    

The Tokyo Stock Exchange

   
     The TSE is one of the world's largest securities exchanges in terms of
market capitalization. Trading hours are from 9:00 A.M. to 11:00 A.M. and from
12:30 P.M. to 3:00 P.M., Tokyo time, Monday through Friday.
    

     Due to the time zone difference, on any normal trading day the TSE will
close prior to the opening of business in New York City on the same calendar
day. Therefore, the closing level of the Japan Index on such trading day will
generally be available in the United States by the opening of business on the
same calendar day.

   
     The TSE has adopted measures intended to prevent any extreme short-term
price fluctuation resulting from order imbalances. These include daily price
floors and ceilings intended to prevent extreme fluctuations in individual
stock prices. Any stock listed on the TSE cannot be traded at a price outside
of these limits which are stated in absolute Japanese yen, and not percentage,
limits from the closing price of the stock on the previous day. In addition,
when there is a major order imbalance in a listed stock, the TSE posts a
"special bid quote" or a "special asked quote" for that stock at a specified
higher or lower price level than the stock's last sale price in order to
solicit counter orders and balance supply and demand for the stock. You should
also be aware that the TSE may suspend the trading of individual stocks in
certain limited and extraordinary circumstances including, for example,
unusual trading activity in that stock. As a result, variations in the Japan
Index may be limited by price limitations on, or by suspension of trading in,
individual stocks which comprise the Japan Index which may, in turn, adversely
affect the value of the securities or result in a Market Disruption Event. See
"Description of Securities--Adjustments to the Index; Market Disruption
Event".
    

The New Japan Index

   
     Under certain circumstances, a New Japan Index may be substituted for the
Japan Index for purposes of calculating the Supplemental Redemption Amount.
The New Japan Index would be an index published by the AMEX or another United
States securities exchange with a high correlation to the Nikkei Stock Index
300. See "Substitution of the Index".

     The Nikkei Stock Index 300 is an index calculated, published and
disseminated by NKS, that measures the composite price performance of stocks
of 300 Japanese companies. All 300 stocks are listed in the First Section of
the TSE. Stocks listed in the First Section are among the most actively traded
stocks on the TSE. Publication of the Nikkei Stock Index 300 began on October
8, 1993.
    

     The Nikkei Stock Index 300 is a market capitalization-weighted index
which is calculated by

   
     o    multiplying the per share price of each stock included in the Nikkei
          Stock Index 300 by the number of outstanding shares, excluding
          shares held by the Japanese Government,

     o    calculating the sum of all these products, such sum being
          hereinafter referred to as the "Aggregate Market Price",

     o    dividing the Aggregate Market Price by the Base Aggregate Market
          Price, i.e. the Aggregate Market Price as of October 1, 1982, and
    

     o    multiplying the result by 100. Larger companies' shares have a
          larger effect on moving the entire index than smaller companies'
          shares.

   
     Although the Nikkei Stock Index 300 was first published in October 1993,
NKS has calculated values for the Nikkei Stock Index 300 for the period from
October 1, 1982 through October 8, 1993. The stocks included in the Nikkei
Stock Index 300, such stocks being hereinafter referred to as the "Underlying
Stocks", were selected from a reference group of stocks which were selected by
excluding stocks listed in the First Section of the TSE that have relatively
low market liquidity or extremely poor financial results. The Underlying
Stocks were selected from this reference group by

     o    selecting from the remaining stocks in this reference group the
          stocks with the largest aggregate market value in each of 36
          industrial sectors and

     o    selecting additional stocks, with priority within each industrial
          sector given to the stock with the largest aggregate market value,
          so that the selection ratios, i.e. the ratio of the aggregate market
          value of the included stocks to that of the stocks in the reference
          group, with respect to all 36 industry sectors will be as nearly
          equal as possible and the total number of companies with stocks
          included in the Nikkei Stock Index 300 will be 300.

     In order to maintain continuity in the level of the Nikkei Stock Index
300, the Nikkei Stock Index 300 will be reviewed annually by NKS and the
Underlying Stocks may be replaced, if necessary, in accordance with the
"deletion/addition rule". The "deletion/addition" rule provides generally for
the deletion of a stock from the Nikkei Stock Index 300 if such stock is no
longer included in the reference group or if the aggregate market value of
such stock is low relative to other stocks in the relevant industry sector.
Stocks deleted pursuant to the "deletion/addition" rule will be replaced by
stocks included in the reference group which have relatively high aggregate
market values. In addition, stocks may be added or deleted from time to time
for extraordinary reasons.

     All disclosure contained in this prospectus regarding the Nikkei 225
Index, Nikkei 225 Futures Contract, Nikkei Stock Index 300, Nikkei 300 Futures
Contract, or their publisher, NKS, is derived from information publicly
available as of January 20, 1994. NKS has no relationship with ML&Co. or the
securities; it does not sponsor, endorse, authorize, sell or promote the
securities, and has no obligation or liability in connection with the
administration, marketing or trading of the securities.
    


                                  OTHER TERMS

   
     The securities were issued as a series of senior debt securities under
the 1983 Indenture, dated as of April 1, 1983, as amended and restated,
between ML&Co. and The Chase Manhattan Bank, as trustee. A copy of the 1983
Indenture is filed as an exhibit to the registration statement relating to the
securities of which this prospectus is a part. The following summaries of
certain provisions of the 1983 Indenture are not complete and are subject to,
and qualified in their entirety by reference to, all provisions of the 1983
Indenture, including the definitions of terms in the 1983 Indenture.

     Series of senior debt securities may from time to time be issued under
the 1983 Indenture, without limitation as to aggregate principal amount, in
one or more series and upon terms as ML&Co. may establish under the provisions
of the 1983 Indenture.

     The 1983 Indenture and the securities are governed by and construed in
accordance with the laws of the State of New York.

     ML&Co. may issue senior debt securities with terms different from those
of senior debt securities previously issued, and issue additional senior debt
securities of a previously issued series of senior debt securities.

     The senior debt securities are unsecured and rank equally with all other
unsecured and unsubordinated indebtedness of ML&Co. However, because ML&Co. is
a holding company, the rights of ML&Co. and its creditors, including the
holders of senior debt securities, to participate in any distribution of the
assets of any subsidiary upon its liquidation or reorganization or otherwise
are necessarily subject to the prior claims of creditors of the subsidiary,
except to the extent that claims of ML&Co. itself as a creditor of the
subsidiary may be recognized. In addition, dividends, loans and advances from
certain subsidiaries, including MLPF&S, to ML&Co. are restricted by net
capital requirements under the Exchange Act, and under rules of exchanges and
other regulatory bodies.
    

Limitations Upon Liens

   
     ML&Co. may not, and may not permit any majority-owned subsidiary to,
create, assume, incur or permit to exist any indebtedness for borrowed money
secured by a pledge, lien or other encumbrance, other than those liens
specifically permitted by the 1983 Indenture, on the Voting Stock owned
directly or indirectly by ML&Co. of any majority-owned subsidiary, other than
a majority-owned subsidiary which, at the time of the incurrence of the
secured indebtedness, has a net worth of less than $3,000,000, unless the
outstanding senior debt securities are secured equally and ratably with the
secured indebtedness.

     "Voting Stock" is defined in the 1983 Indenture as the stock of the class
or classes having general voting power under ordinary circumstances to elect
at least a majority of the board of directors, managers or trustees of a
corporation provided that, for the purposes of the 1983 Indenture, stock that
carries only the right to vote conditionally on the occurrence of an event is
not considered voting stock whether or not the event has happened.
    

Limitation on Disposition of Voting Stock of, and Merger and Sale of Assets by,
MLPF&S

   
     ML&Co. may not sell, transfer or otherwise dispose of any Voting Stock of
MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of its
Voting Stock, unless, after giving effect to any such transaction, MLPF&S
remains a Controlled Subsidiary.

     "Controlled Subsidiary" is defined in the 1983 Indenture to mean a
corporation more than 80% of the outstanding shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

     In addition, ML&Co. may not permit MLPF&S to:

     o    merge or consolidate, unless the surviving company is a Controlled
          Subsidiary, or
    

     o    convey or transfer its properties and assets substantially as an
          entirety, except to one or more Controlled Subsidiaries.

Merger and Consolidation

   
     ML&Co. may consolidate or merge with or into any other corporation and
ML&Co. may sell, lease or convey all or substantially all of its assets to any
corporation, provided that:

     o    the resulting corporation, if other than ML&Co., is a corporation
          organized and existing under the laws of the United States of
          America or any U.S. state and assumes all of ML&Co.'s obligations
          to:

          o    pay any amounts due and payable or deliverable with respect to
               all the Senior Debt Securities ; and

          o    perform and observe of all of ML&Co.'s obligations under the
               1983 Indenture, and

     o    ML&Co. or the successor corporation, as the case may be, is not,
          immediately after any consolidation or merger, in default under the
          1983 Indenture.
    

Modification and Waiver

   
     ML&Co. and the trustee may modify and amend the 1983 Indenture with the
consent of holders of at least 66 2/3% in principal amount of each outstanding
series of debt securities affected. However, without the consent of each
holder of any outstanding debt security affected, no amendment or modification
to any Indenture may:

     o    change the stated maturity date of the principal of, or any
          installment of interest or Additional Amounts payable on, any senior
          debt security or any premium payable on redemption , or change the
          redemption price;

     o    reduce the principal amount of, or the interest or Additional
          Amounts payable on, any senior debt security or reduce the amount of
          principal which could be declared due and payable before the stated
          maturity date;

     o    change the place or currency of any payment of principal or any
          premium, interest or Additional Amounts payable on any senior debt
          security;

     o    impair the right to institute suit for the enforcement of any
          payment on or with respect to any senior debt security;

     o    reduce the percentage in principal amount of the outstanding senior
          debt securities of any series, the consent of whose holders is
          required to modify or amend the 1983 Indenture; or

     o    modify the foregoing requirements or reduce the percentage of
          outstanding senior debt securities necessary to waive any past
          default to less than a majority.

     No modification or amendment of ML&Co.'s Subordinated Indenture or any
Subsequent Indenture for subordinated debt securities may adversely affect the
rights of any holder of ML&Co.'s senior indebtedness without the consent of
each holder affected. The holders of at least a majority in principal amount
of outstanding senior debt securities of any series may, with respect to that
series, waive past defaults under the Indenture and waive compliance by ML&Co.
with provisions in the 1983 Indenture, except as described under "--Events of
Default".

Events of Default

     Each of the following will be Events of Default with respect to senior
debt securities of any series:

     o    default in the payment of any interest or Additional Amounts payable
          when due and continuing for 30 days;

     o    default in the payment of any principal or premium when due;

     o    default in the deposit of any sinking fund payment, when due;

     o    default in the performance of any other obligation of ML&Co.
          contained in the Indenture for the benefit of that series or in the
          senior debt securities of that series, continuing for 60 days after
          written notice as provided in the 1983 Indenture;

     o    specified events in bankruptcy, insolvency or reorganization of
          ML&Co.; and

     o    any other Event of Default provided with respect to senior debt
          securities of that series which are not inconsistent with the 1983
          Indenture.

     If an Event of Default occurs and is continuing for any series of senior
debt securities, other than as a result of the bankruptcy, insolvency or
reorganization of ML&Co., the trustee or the holders of at least 25% in
principal amount of the outstanding senior debt securities of that series may
declare all amounts, or any lesser amount provided for in the senior debt
securities, due and payable or deliverable immediately. At any time after a
declaration of acceleration has been made with respect to senior debt
securities of any series but before the trustee has obtained a judgment or
decree for payment of money , the holders of a majority in principal amount of
the outstanding senior debt securities of that series may rescind any
declaration of acceleration and its consequences, if all payments due, other
than those due as a result of acceleration, have been made and all Events of
Default have been remedied or waived.

     The holders of a majority in principal amount or aggregate issue price of
the outstanding debt securities of any series of senior debt securities may
waive an Event of Default with respect to that series, except a default:

     o    in the payment of any amounts due and payable or deliverable under
          the debt securities of that series; or

     o    in respect of an obligation or provision of any Indenture which
          cannot be modified under the terms of that Indenture without the
          consent of each holder of each series of debt securities affected.

     The holders of a majority in principal amount of the outstanding senior
debt securities of a series may direct the time, method and place of
conducting any proceeding for any remedy available to the Trustee or
exercising any trust or power conferred on the trustee with respect to those
senior debt securities, provided that any direction shall not be in conflict
with any rule of law or the 1983 Indenture. Before proceeding to exercise any
right or power under the 1983 Indenture at the direction of the holders, the
trustee shall be entitled to receive from the holders reasonable security or
indemnification against the costs, expenses and liabilities which might be
incurred by it in complying with any direction.

     The securities and other series of senior debt securities issued under
the 1983 Indenture do not have the benefit of any cross-default provisions
with other indebtedness of ML&Co.

     ML&Co. is required to furnish to the trustee annually a statement as to
the fulfillment by ML&Co. of all of its obligations under the 1983 Indenture.
    

<PAGE>

   
                      WHERE YOU CAN FIND MORE INFORMATION

     We file reports, proxy statements and other information with the SEC.
Our SEC filings are also  available  over the  Internet at the SEC's web site at
http://www.sec.gov.  You may also read and copy any document we file by visiting
the SEC's public  reference  rooms in Washington,  D.C., New York, New York, and
Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further information
about the public reference rooms. You may also inspect our SEC reports and other
information at the New York Stock Exchange, Inc., 20 Broad Street, New York, New
York 10005.

     We have filed a registration statement on Form S-3 with the SEC covering
the securities and other securities. For further information on ML&Co. and the
securities, you should refer to our registration statement and its exhibits.
This prospectus summarizes material provisions of contracts and other
documents that we refer you to. Because the prospectus may not contain all the
information that you may find important, you should review the full text of
these documents. We have included copies of these documents as exhibits to our
registration statement of which this prospectus is a part.


               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

     The SEC allows us to incorporate by reference the information we file
with them, which means:

     o    incorporated documents are considered part of the prospectus;

     o    we can disclose important information to you by referring you to
          those documents; and

     o    information that we file with the SEC will automatically update and
          supersede this incorporated information.

     We incorporate by reference the documents listed below which were filed
with the SEC under the Exchange Act:

     o    annual report on Form 10-K for the year ended December 25, 1998; and

     o    current reports on Form 8-K dated December 28, 1998, January 19, 1999,
          February 17, 1999, February 18, 1999, February 22, 1999, February 23,
          1999 and March 26, 1999.

     We also incorporate by reference each of the following documents that we
will file with the SEC after the date of this prospectus until this offering
is completed or after the date of this initial registration statement and
before the effectiveness of the registration statement:

     o    reports filed under Sections 13(a) and (c) of the Exchange Act;

     o    definitive proxy or information statements filed under Section 14 of
          the Exchange Act in connection with any subsequent stockholders'
          meeting; and

     o    any reports filed under Section 15(d) of the Exchange Act.

     You should rely only on information contained or incorporated by
reference in this prospectus. We have not, and MLPF&S has not, authorized any
other person to provide you with different information. If anyone provides you
with different or inconsistent information, you should not rely on it. We are
not, and MLPF&S is not, making an offer to sell these securities in any
jurisdiction where the offer or sale is not permitted.

     You should assume that the information appearing in this prospectus is
accurate as of the date of this prospectus only. Our business, financial
condition and results of operations may have changed since that date.

     You may request a copy of any filings referred to above (excluding
exhibits), at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan, Jr., Corporate Secretary's Office, Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.


                             PLAN OF DISTRIBUTION

     This prospectus has been prepared in connection with secondary sales of
the securities and is to be used by MLPF&S when making offers and sales
related to market-making transactions in the securities.

     MLPF&S may act as principal or agent in these market-making transactions.

     The securities may be offered on the AMEX or off the exchange in
negotiated transactions or otherwise.

     The distribution of the securities will conform to the requirements set
forth in the applicable sections of Rule 2720 of the Conduct Rules of the
NASD.
    


                                    EXPERTS

   
         The consolidated financial statements and the related financial
statement schedule incorporated in this prospectus by reference from the
Annual Report on Form 10-K of Merrill Lynch & Co., Inc. and subsidiaries have
been audited by Deloitte & Touche LLP, independent auditors, as stated in
their reports (which express an unqualified opinion and which report on the
consolidated financial statements includes an explanatory paragraph for the
change in accounting method for certain internal-use software development
costs), which are incorporated herein by reference, and have been so
incorporated in reliance upon the reports of such firm given upon their
authority as experts in accounting and auditing.

         
    


<PAGE>
   
This information in this prospectus is not complete and may be changed. We may
not sell these securities until the registration statement filed with the
Securities and Exchange Commission is effective. This prospectus is not an
offer to sell these securities and it is not soliciting an offer to buy these
securities in any state where the offer or sale is not permitted.
    


                             Subject to Completion


   
                  Preliminary Prospectus dated March 29, 1999

PROSPECTUS
    

                           Merrill Lynch & Co., Inc.
   
                               AMEX Oil Index(SM)
         Stock Market Annual Reset Term(SM) Notes due December 29, 2000
                                "SMART Notes(SM)"

     This prospectus is to be used by Merrill Lynch & Co., Merrill Lynch,
Pierce, Fenner & Smith Incorporated, our wholly-owned subsidiary, when making
offers and sales related to market-making transactions in the SMART Notes.



          The SMART Notes:
              o  100%  principal  protection  at  maturity
              o  Interest payment on each June 30 and December 30
              o  We will pay  interest  on the  SMART  Notes at a rate
                 equal  to the  product  of  85%  and  the  percentage
                 increase, if any, in the AMEX Oil Index
              o  For each $1,000  principal  amount of the SMART Notes
                 that you own,  you will receive not less than $20 per
                 year 
              o  The SMART  Notes are  listed  on the  American  Stock
                 Exchange under the symbol "MOI.F"

                 Investing in the SMART Notes involves risks.
                    See "Risk Factors" beginning on page 3.
    



     Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if
this prospectus is truthful or complete. Any representation to the contrary is
a criminal offense.

   
         
    


                                  -----------

                              Merrill Lynch & Co.

                                  -----------


                           The date of this prospectus is , 199 .

   
   (SM)"SMART Notes" and "Stock Market Annual Reset Term" are service marks of
     Merrill Lynch & Co., Inc. (SM)"Oil Index" is a registered service mark
                     of the American Stock Exchange, Inc.
    


<PAGE>


   
                               TABLE OF CONTENTS

                                                                     Page

RISK FACTORS.......................................................    3

MERRILL LYNCH & CO.................................................    6

RATIO OF EARNINGS TO FIXED CHARGES.................................    7

DESCRIPTION OF THE SMART NOTES.....................................    8

THE AMEX OIL INDEX.................................................   15

OTHER TERMS........................................................   17

WHERE YOU CAN FIND MORE INFORMATION................................   21 

INCORPORATION OF INFORMATION WE FILE WITH THE SEC..................   21

PLAN OF DISTRIBUTION...............................................   22

EXPERTS............................................................   22
    


<PAGE>


   
                                 RISK FACTORS

You may not earn a return on your investment

     If the arithmetic mean of the quarterly closing values of the AMEX Oil
Index applicable to each December payment date, determined in the manner set
forth in this prospectus, does not exceed the closing value of the AMEX Oil
Index on the last business day of the immediately preceding calendar year by
more than approximately 2.35%, at maturity you receive no more than $20 for
each $1,000 principal amount of your SMART Notes on that December payment
date. This will be true even if at some point during the time the calculation
agent determines the interest payable on the SMART Notes for each December
payment date, the arithmetic mean of the quarterly closing values of the AMEX
Oil Index for that year exceeded the closing value of the AMEX Oil Index on
the last business day of the immediately preceding calendar year by more than
2.35%.

     You will receive no less than $20 for each $1,000 principal amount of
your SMART Notes and we will repay you 100% of the principal amount of your
SMART Notes at maturity. Therefore, the amount that we pay you at maturity may
be less than the return you could earn on other investments. Your yield may be
less than the yield you would earn if you bought a senior non-callable debt
security of Merrill Lynch & Co., Inc. with the same maturity date. Your
investment may not reflect the full opportunity cost to you when you take into
account factors that affect the time value of money.

     The amount payable on the SMART Notes based on the AMEX Oil Index will
not produce the same return as if you purchased the stocks underlying the AMEX
Oil Index and held them for a similar period because of the following:

     o    the AMEX Oil Index does not reflect the payment of dividends on the
          stocks underlying it,

     o    the annual amount payable is limited to 85% multiplied by the
          percentage increase in the AMEX Oil Index during any relevant
          period, but will not be less than $20 per $1,000 principal amount of
          the SMART Notes,

     o    the arithmetic mean of the quarterly closing values of the AMEX Oil
          Index for each calendar year may not reflect the full percentage
          increase in the AMEX Oil Index during any relevant period because it
          is an average of the AMEX Oil Index at various points in time, and

     o    the amounts payable on the SMART Notes do not reflect changes in the
          AMEX Oil Index for the period between the determination of the
          arithmetic mean of the quarterly closing values of the AMEX Oil
          Index applicable to each December payment date and the determination
          of the closing value of the AMEX Oil Index on the last business day
          of the preceding calendar year for the next December payment date.

There may be an uncertain trading market for the SMART Notes in the future

     The SMART Notes are listed on the AMEX under the symbol "MOI.F". We
expect that the secondary market for the SMART Notes, including prices in that
market will likely be affected by our creditworthiness and by a number of
other factors. It is possible to view the SMART Notes as the economic
equivalent of a debt obligation plus a series of cash settlement options;
however, the SMART Notes may trade in the secondary market at a discount from
the aggregate value of these economic components, if these economic components
were valued and capable of being traded separately.

     The trading values of the SMART Notes may be affected by a number of
interrelated factors, including those listed below. The following is the
expected theoretical effect on the trading value of the SMART Notes of each of
the factors listed below. The following discussion of each separate factor
generally assumes that all other factors are held constant, although the
actual interrelationship between certain of such factors is complex.

     o    Relative Level of the AMEX Oil Index. We expect that the trading
          value of the SMART Notes will depend significantly on the extent of
          the excess of the expected average of the quarterly closing values
          of the AMEX Oil Index for a calendar year over the closing value of
          the AMEX Oil Index on the last business day of the preceding
          calendar year. If, however, you sell your SMART Notes at a time when
          this excess exists, the price you receive may nevertheless be at a
          discount from the amount expected to be payable if this excess were
          to prevail until the next December payment date. Furthermore, the
          price at which you will be able to sell SMART Notes before a
          December payment date may be at a discount, which could be
          substantial, from the principal amount of your SMART Notes, if, at
          that time, the AMEX Oil Index is below, equal to or not sufficiently
          above the closing value of the AMEX Oil Index on the last business
          day of the immediately preceding calendar year before that December
          payment date. The level of the AMEX Oil Index will depend on the
          prices of the stocks underlying the AMEX Oil Index which, in turn,
          will be affected by factors affecting the oil industry, see "The
          AMEX Oil Index--Oil Industry Sector".

     o    Volatility of the AMEX Oil Index. If the volatility of the AMEX Oil
          Index increases, we expect the trading value of the SMART Notes to
          increase. If the volatility of the AMEX Oil Index decreases, we
          expect the trading value of the SMART Notes to decrease.

     o    U.S. Interest Rates. In general, if U.S. interest rates increase, we
          expect the value of the SMART Notes to decrease. If U.S. interest
          rates decrease, we expect the value of the SMART Notes to increase.
          Interest rates may also affect the U.S. economy, and, in turn, the
          level of the AMEX Oil Index. Rising interest rates may lower the
          level of the AMEX Oil Index and, thus, the value of the SMART Notes.
          Falling interest rates may increase the level of the AMEX Oil Index
          and, thus, may increase the value of the SMART Notes.

     o    Time Remaining to December Payment Dates. We anticipate that before
          each December payment date, the SMART Notes may trade at a value
          above which may be inferred from the level of U.S. interest rates
          and the AMEX Oil Index. This difference will reflect a "time
          premium" due to expectations concerning the level of the AMEX Oil
          Index during the period before each December payment date. As the
          time remaining to each December payment date decreases, however,
          this time premium may decrease, thus decreasing the trading value of
          the SMART Notes.

     o    Time Remaining to Maturity. As the number of remaining December
          payment dates decreases, the cumulative value of all the annual
          rights to receive an amount that reflects participation in the
          payments in excess of the minimum annual interest payment of $20 per
          $1,000 principal amount will decrease, thus decreasing the value of
          the SMART Notes.

     o    Dividend Rates. A number of complex relationships between the
          relative values of the SMART Notes and dividend rates are likely to
          exist. If dividend rates on the stocks comprising the AMEX Oil Index
          increase, the value of the annual right to receive an amount that
          reflects participation in the average appreciation of the AMEX Oil
          Index above the annual starting value is expected to decrease, and
          consequently, we expect the value of the SMART Notes to decrease.
          Conversely, if dividend rates on the stocks comprising the AMEX Oil
          Index decrease, the value of the annual right to receive such an
          amount is expected to increase and, therefore, the value of the
          SMART Notes is expected to increase. In general, however, because
          the majority of issuers of stocks underlying the AMEX Oil Index are
          organized in the United States, rising U.S. corporate dividend rates
          may increase the AMEX Oil Index and, in turn, increase the value of
          the SMART Notes. Conversely, falling U.S. dividend rates may
          decrease the AMEX Oil Index and, in turn, decrease the value of the
          SMART Notes.

Amounts payable on the MITTS Securities may be limited by state law

     The indenture under which the SMART Notes are issued is governed by New
York State law. New York has usury laws that limit the amount of interest that
can be charged and paid on loans, which includes debt securities like the
SMART Notes. Under present New York law, the maximum rate of interest is 25%
per annum on a simple interest basis. This limit may not apply to debt
securities in which $2,500,000 or more has been invested.

     While we believe that New York law would be given effect by a state or
Federal court sitting outside of New York, many other states also have laws
that regulate the amount of interest that may be charged to and paid by a
borrower. We will promise, for the benefit of the holders of the SMART Notes,
to the extent permitted by law, not to voluntarily claim the benefits of any
laws concerning usurious rates of interest.
    

Other Considerations

   
     You should reach an investment decision with regard to the SMART Notes
only after carefully considering the suitability of the SMART Notes in light
of your particular circumstances.

     You should also consider the tax consequences of investing in the SMART
Notes and should consult your tax advisors.
    

<PAGE>

   
                           MERRILL LYNCH & CO., INC.

     We are a holding company that, through our U.S. and non-U.S. subsidiaries
and affiliates such as Merrill Lynch, Pierce, Fenner & Smith Incorporated,
Merrill Lynch Government Securities Inc., Merrill Lynch Capital Services,
Inc., Merrill Lynch International, Merrill Lynch Capital Markets Bank Ltd.,
Merrill Lynch Asset Management L.P. and Merrill Lynch Mercury Asset
Management, provides investment, financing, advisory, insurance, and related
products on a global basis, including:

     o    securities brokerage, trading and underwriting;

     o    investment banking, strategic services, including mergers and
          acquisitions and other corporate finance advisory activities;

     o    asset management and other investment advisory and recordkeeping
          services;

     o    trading and brokerage of swaps, options, forwards, futures and other
          derivatives;

     o    securities clearance services;

     o    equity, debt and economic research;

     o    banking, trust and lending services, including mortgage lending and
          related services; and

     o    insurance sales and underwriting services.

     We provide these products and services to a wide array of clients,
including individual investors, small businesses, corporations, governments,
governmental agencies and financial institutions.

     Our principal executive office is located at World Financial Center,
North Tower, 250 Vesey Street, New York, New York 10281; our telephone number
is (212) 449-1000.

     If you want to find more information about us, please see the sections
entitled "Where You Can Find More Information" and "Incorporation of
Information We File with the SEC" in this prospectus.

     In this prospectus, "ML&Co.", "we", "us" and "our" refer specifically to
Merrill Lynch & Co., Inc., the holding company. ML&Co. is the issuer of the
SMART Notes described in this prospectus.
    

<PAGE>

   
                      RATIO OF EARNINGS TO FIXED CHARGES

     In 1998, we acquired the outstanding shares of Midland Walwyn, Inc., in a
transaction accounted for as a pooling-of-interests. The following information
for the fiscal years 1994 through 1997 has been restated as if the two
entities had always been combined.

     The following table sets forth our historical ratios of earnings to fixed
charges for the periods indicated:



                                           Year Ended Last Friday in December
                                        1994     1995     1996     1997     1998
                                        ----------------------------------------
Ratio of earnings to fixed charges(a)   1.2      1.2      1.2      1.2      1.1
- ----------
(a)  The effect of combining Midland Walwyn did not change the ratios reported
     for the fiscal years 1994  through 1997.

     For the purpose of calculating the ratio of earnings to fixed charges,
"earnings" consist of earnings from continuing operations before income taxes
and fixed charges, excluding capitalized interest and preferred security
dividend requirements. "Fixed charges" consist of interest costs, the interest
factor in rentals, amortization of debt issuance costs, preferred security
dividend requirements of subsidiaries, and capitalized interest.
    

<PAGE>


   
                        DESCRIPTION OF THE SMART NOTES

     The SMART Notes were issued as a series of Senior Debt Securities under
the 1983 Indenture which is more fully described this prospectus.

     The SMART Notes will mature, and the principal of the SMART Notes will be
repayable at par, on December 29, 2000.

     The SMART Notes are not subject to redemption before maturity by ML&Co.
or at the option of any beneficial owner. Upon the occurrence of an Event of
Default with respect to the SMART Notes, however, beneficial owners of the
SMART Notes or the Trustee may accelerate the maturity of the SMART Notes, as
described under "Description of SMART Notes--Events of Default and
Acceleration" and "Other Terms--Events of Default" in this prospectus.

     The SMART Notes are transferable in denominations of $1,000 and integral
multiples of $1,000.
    

Interest Payments

   
     For each full calendar year, ML&Co. will pay interest in an amount equal
to the following for each $1,000 principal amount of SMART Notes:
    

$1,000 x Average Percent Change x Participation Rate

   
provided, however, that the per annum amount payable as a result of the
foregoing on the SMART Notes will not be less than the Minimum Annual Payment
of $20 per $1,000 principal amount of SMART Notes on a per annum basis or 2%
per annum.

     The "Participation Rate" equals 85%.
    

     The "Average Percent Change" applicable to the determination of the
amount payable in any calendar year will equal:

                 Ending Average Value - Starting Annual Value
                 --------------------------------------------
                             Starting Annual Value

   
     The "Starting Annual Value" applicable to the determination of the amount
payable in a calendar year will equal the closing value of the AMEX Oil Index
on the last AMEX Business Day in the immediately preceding calendar year as
determined by State Street Bank and Trust Company or the calculation agent.

     The "Ending Average Value" applicable to the determination of the amount
payable in a calendar year will equal the arithmetic average or arithmetic
mean of the Quarterly Values of the AMEX Oil Index for each calendar quarter
during such year as determined by the calculation agent.

     The "Quarterly Value" for any of the first three calendar quarters in a
calendar year will be the closing value of the AMEX Oil Index on the last
scheduled AMEX Business Day in any such calendar quarter; provided, however,
that if a Market Disruption Event has occurred on the last scheduled AMEX
Business Day in that calendar quarter, the Quarterly Value for that calendar
quarter will be the closing value of the AMEX Oil Index on the next succeeding
scheduled AMEX Business Day regardless of whether a Market Disruption Event
occurs on that day.

     The "Quarterly Value" for the fourth calendar quarter in a calendar year
will be the closing value of the AMEX Oil Index on the seventh scheduled AMEX
Business Day preceding the end of that calendar quarter; provided, however,
that if a Market Disruption Event has occurred on the seventh scheduled AMEX
Business Day, the Quarterly Value for that calendar quarter will be the
closing value of the AMEX Oil Index on the sixth scheduled AMEX Business Day
preceding the end of that calendar quarter regardless of whether a Market
Disruption Event occurs on that day. The calculation agent will determine
scheduled AMEX Business Days.

     If the Ending Average Value applicable to the applicable December payment
date does not exceed the Annual Starting Value by more than approximately
2.35%, beneficial owners of the SMART Notes will receive only the Minimum
Annual Payment on that December payment date, even if the value of the AMEX
Oil Index at some point between the determination of the applicable Starting
Annual Value and the determination of the applicable Ending Average Value
exceeded that Starting Annual Value by more than approximately 2.35%.

     "Calculation Day" is any day on which a Starting Annual Value or a
closing value of the AMEX Oil Index for a calendar quarter is required to be
calculated.

     An "AMEX Business Day" is a day on which the AMEX is open for trading.
All determinations made by the calculation agent shall be at the sole
discretion of the calculation agent and, in the absence of manifest error,
shall be conclusive for all purposes and binding on ML&Co. and beneficial
owners of the SMART Notes.

     All percentages resulting from any calculation on the SMART Notes will be
rounded to the nearest one hundred-thousandth of a percentage point, with five
one millionths of a percentage point rounded upwards, e.g., 9.876545% or
 .09876545 would be rounded to 9.87655% or .0987655, and all dollar amounts
used in or resulting from any calculation will be rounded to the nearest cent
with one-half cent being rounded upwards.
    

Adjustments to the Index; Market Disruption Event

   
     If at any time the method of calculating the AMEX Oil Index, or its value,
is changed in a material respect, or if the AMEX Oil Index is in any other
way modified so that the index does not, in the opinion of the calculation
agent, fairly represent the value of the AMEX Oil Index had no changes or
modifications been made, then, from and after that time, the calculation agent
shall, at the close of business in New York, New York, on each Calculation
Day, make any adjustments as, in the good faith judgment of the calculation
agent, may be necessary in order to arrive at a calculation of a value of a
stock index comparable to the AMEX Oil Index as if no changes or modifications
had been made, and calculate the closing value with reference to the AMEX Oil
Index, as adjusted. Accordingly, if the method of calculating the AMEX Oil
Index is modified so that the value of the index is a fraction or a multiple
of what it would have been if it had not been modified, e.g., due to a split
in the index, then the calculation agent shall adjust the index in order to
arrive at a value of the AMEX Oil Index as if it had not been modified, e.g.,
as if a split had not occurred.

     "Market Disruption Event" means either of the following events, as
determined by the calculation agent:

          (a)  the suspension or material limitation on trading during the
               last half hour of trading in any of the component stocks, or
               depository receipts representing those stocks, included in the
               AMEX Oil Index on any national securities exchange in the
               United States, or

          (b)  the suspension or material limitation, in each case during the
               last half hour of trading whether by reason of movements in
               price exceeding levels permitted by the relevant exchange or
               otherwise, in
    

               o    futures contracts related to the AMEX Oil Index which are
                    traded on any exchange or board of trade in the United
                    States or

   
               o    option contracts related to the AMEX Oil Index which are
                    traded on the AMEX.

     For the purposes of clause (a) above, any limitations on trading during
significant market fluctuations under New York Stock Exchange Rule 80A, or any
applicable rule or regulation enacted or promulgated by the NYSE, the AMEX or
any other self regulatory organization or the SEC of similar scope as
determined by the calculation agent, will be considered "material".
    

     For the purposes of this definition, a limitation on the hours in a
trading day and/or number of days of trading will not constitute a Market
Disruption Event if it results from an announced change in the regular
business hours of the relevant exchange.

Interest Payment Dates

   
     ML&Co. will make semiannual interest payments on the SMART Notes on June
30 of each year ("June Payment Dates") and December 31 of each year and at
maturity ("December Payment Dates"), except as described in this prospectus,
to the persons in whose names the SMART Notes are registered on the
immediately preceding June 29 or December 30, and, at maturity, to the person
to whom the principal is payable. For each Note, ML&Co. will pay half of the
Minimum Annual Payment for each calendar year on the June Payment Date, and
will pay the balance of the annual amount payable on each Note for that year
on the December Payment Date.

     Notwithstanding the foregoing, if it is known at least three Business
Days before December 31 that December 31 will not be a Business Day, the
amount payable by ML&Co. with respect to a December Payment Date for the SMART
Notes will be made on the Business Day immediately preceding that December 31
to the persons in whose names the SMART Notes are registered on the second
Business Day immediately preceding that December 31.

Discontinuance of the AMEX Oil Index

     If the AMEX discontinues publication of the AMEX Oil Index and the AMEX
or another entity publishes a successor or substitute index that the
calculation agent determines, in its sole discretion, to be comparable to the
AMEX Oil Index (a "Successor Index"), then, upon the calculation agent's
notification of any determination to the Trustee and ML&Co., the calculation
agent will substitute the Successor Index as calculated by the AMEX or any
other entity for the AMEX Oil Index and calculate the annual amount payable as
described above under "Interest Payments". Upon any selection by the
calculation agent of a Successor Index, ML&Co. shall cause notice to be given
to holders of the SMART Notes.

     If the AMEX discontinues publication of the AMEX Oil Index and a
Successor Index is not selected by the calculation agent or is no longer
published on any of the Calculation Days, the value to be substituted for the
AMEX Oil Index for any Calculation Day used to calculate the annual amount
payable will be a value computed by the calculation agent for each Calculation
Day in accordance with the procedures last used to calculate the AMEX Oil
Index before any discontinuance. If a Successor Index is selected or the
calculation agent calculates a value as a substitute for the AMEX Oil Index
the Successor Index or value shall be substituted for the AMEX Oil Index for
all purposes, including for purposes of determining whether a Market
Disruption Event exists.

     If the AMEX discontinues publication of the AMEX Oil Index before the
period during which the amount payable with respect to any year is to be
determined and the calculation agent determines that no Successor Index is
available at that time, then on each AMEX Business Day until the earlier to
occur of

     (a)  the determination of the amount payable with respect to that year or

     (b)  a determination by the calculation agent that a Successor Index is
          available, the calculation agent shall determine the value that
          would be used in computing the amount payable with respect to that
          year as described in the preceding paragraph as if that day were a
          Calculation Day.

The calculation agent will cause notice of each such value to be published not
less often than once each month in The Wall Street Journal or another
newspaper of general circulation, and arrange for information with respect to
these values to be made available by telephone. Notwithstanding these
alternative arrangements, discontinuance of the publication of the AMEX Oil
Index may adversely affect trading in the SMART Notes.
    

Events of Default and Acceleration

   
     In case an Event of Default with respect to any SMART Notes shall have
occurred and be continuing, the amount payable to a beneficial owner of a Note
upon any acceleration permitted by the SMART Notes, will equal:

     (a)  the principal amount of each SMART Note, plus

     (b)  an additional amount, if any, of interest calculated as though the
          date of early repayment were a December Payment Date and prorated
          through the date of early repayment on the basis of a year
          consisting of 360 days of twelve 30-day months.

If Quarterly Values have been calculated before the early redemption date for
the calendar year in which any early redemption date occurs, these Quarterly
Values shall be averaged with the value of the AMEX Oil Index determined with
respect to that date of early redemption. If no Quarterly Values have been
calculated before the early redemption date for the calendar year in which the
early redemption date occurs, the Ending Average Value for that calendar year
will be the value of the AMEX Oil Index determined with respect to the date of
early redemption. The Minimum Supplemental Redemption Amount with respect to
any early redemption date will be an amount equal to the interest which would
have accrued on the SMART Notes from and including January 1 in the calendar
year in which the early redemption date occurs, to but excluding the date of
early redemption at an annualized rate of 2%, calculated on a semiannual bond
equivalent basis.

     If a bankruptcy proceeding is commenced in respect of ML&Co., the claim
of the beneficial owner of a Note may be limited, under Section 502(b)(2) of
Title 11 of the United States Code, to the principal amount of the Note plus
an additional amount, if any, of contingent interest calculated as though the
date of the commencement of the proceeding were the maturity date of the SMART
Notes.

     In case of default in payment at the maturity date of the SMART Notes
whether at their stated maturity or upon acceleration, from and after the
maturity date the SMART Notes shall bear interest, payable upon demand of the
holders, at the rate of 7% per annum to the extent that payment of interest
shall be legally enforceable, on the unpaid amount due and payable on that
date in accordance with the terms of the SMART Notes to the date payment of
that amount has been made or duly provided for.

Global Securities

     Description of the Global Securities.

     Beneficial owners of the SMART Notes may not receive physical delivery of
the securities nor may they be entitled to have the securities registered in
their names. The SMART Notes are represented by one or more fully registered
global securities. Each global security has been deposited with, or on behalf
of, The Depository Trust Company or DTC (DTC, together with any successor
thereto, being a "depositary"), as depositary, registered in the name of Cede
& Co. (DTC's partnership nominee). Unless and until it is exchanged in whole
or in part for SMART Notes in definitive form, no global security may be
transferred except as a whole by the depositary to a nominee of the depositary
or by a nominee of the depositary to such depositary or another nominee of the
depositary or by the depositary or any nominee to a successor of such
depositary or a nominee of that successor.

     So long as DTC, or its nominee, is a registered owner of a global
security, DTC or its nominee, as the case may be, will be considered the sole
owner or holder of the SMART Notes represented by a global security for all
purposes under the 1983 Indenture. Except as provided below, the beneficial
owners of the securities represented by a global security are not entitled to
have the SMART Notes represented by the global security registered in their
names, will not receive or be entitled to receive physical delivery of the
SMART Notes in definitive form and are not considered the owners or holders
under the 1983 Indenture, including for purposes of receiving any reports
delivered by ML&Co. or the trustee under the 1983 Indenture. Accordingly, each
person owning a beneficial interest in a global security must rely on the
procedures of DTC and, if that person is not a participant of DTC on the
procedures of the participant through which that person owns its interest, to
exercise any rights of a Holder under the 1983 Indenture. ML&Co. understands
that under existing industry practices, in the event that ML&Co. requests any
action of holders or that an owner of a beneficial interest in a global
security desires to give or take any action which a holder is entitled to give
or take under the 1983 Indenture, DTC would authorize the participants holding
the relevant beneficial interests to give or take action, and those
participants would authorize beneficial owners owning through those
participants to give or take action or would otherwise act upon the
instructions of beneficial owners. Conveyance of notices and other
communications by DTC to participants, by participants to indirect
participants and by participants and indirect participants to beneficial
owners are governed by arrangements among them, subject to any statutory or
regulatory requirements as may be in effect from time to time.

     DTC Procedures

     The following is based on information furnished by DTC:

     DTC is the securities depositary for the securities. The securities have
been issued as fully registered securities registered in the name of Cede &
Co. (DTC's partnership nominee). One or more fully registered global
securities have been issued for the SMART Notes in the aggregate principal
amount of that issue, and has been deposited with DTC.

     DTC is a limited-purpose trust company organized under the New York
Banking Law, a "banking organization" within the meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing corporation"
within the meaning of the New York Uniform Commercial Code, and a "clearing
agency" registered pursuant to the provisions of Section 17A of the Exchange
Act. DTC holds securities that its participants deposit with DTC. DTC also
facilitates the settlement among participants of securities transactions ,
such as transfers and pledges, in deposited securities through electronic
computerized book-entry changes in participants' accounts , thereby
eliminating the need for physical movement of securities certificates. Direct
participants of DTC include securities brokers and dealers, banks, trust
companies, clearing corporations and certain other organizations. DTC is owned
by a number of its direct participants and by the NYSE, the AMEX and the
National Association of Securities Dealers, Inc. Access to the DTC's system is
also available to others such as securities brokers and dealers, banks and
trust companies that clear through or maintain a custodial relationship with a
direct participant, either directly or indirectly. The rules applicable to DTC
and its participants are on file with the SEC.

     Purchases of securities under DTC's system must be made by or through
direct participants, which will receive a credit for the securities on DTC's
records. The ownership interest of each beneficial owner is in turn to be
recorded on the records of direct and indirect participants. Beneficial owners
will not receive written confirmation from DTC of their purchase, but
beneficial owners are expected to receive written confirmations providing
details of the transaction, as well as periodic statements of their holdings,
from the direct participants or indirect participants through which such
beneficial owner entered into the transaction. Transfers of ownership
interests in the securities are to be accomplished by entries made on the
books of participants acting on behalf of beneficial owners.

     To facilitate subsequent transfers, all securities deposited with DTC are
registered in the name of DTC's partnership nominee, Cede & Co. The deposit of
securities with DTC and their registration in the name of Cede & Co. effect no
change in beneficial ownership. DTC has no knowledge of the actual beneficial
owners of the securities; DTC's records reflect only the identity of the
direct participants to whose accounts such securities are credited, which may
or may not be the beneficial owners. The participants are responsible for
keeping account of their holdings on behalf of their customers.

     Conveyance of notices and other communications by DTC to direct
participants, by direct participants to indirect participants, and by direct
and indirect participants to beneficial owners are governed by arrangements
among them, subject to any statutory or regulatory requirements as may be in
effect from time to time.

     Neither DTC nor Cede & Co. will consent or vote with respect to the
securities. Under its usual procedures, DTC mails an omnibus proxy to ML&Co.
as soon as possible after the applicable record date. The omnibus proxy
assigns Cede & Co.'s consenting or voting rights to those direct participants
identified in a listing attached to the omnibus proxy to whose accounts the
securities are credited on the record date.

     Principal, premium, if any, and/or interest, if any, payments on the
SMART Notes will be made in immediately available funds to DTC. DTC's practice
is to credit direct participants' accounts on the applicable payment date in
accordance with their respective holdings shown on the depositary's records
unless DTC has reason to believe that it will not receive payment on such
date. Payments by participants to beneficial owners will be governed by
standing instructions and customary practices, as is the case with securities
held for the accounts of customers in bearer form or registered in "street
name", and will be the responsibility of such participant and not of DTC, the
trustee or ML&Co., subject to any statutory or regulatory requirements as may
be in effect from time to time. Payment of principal, premium, if any, and/or
interest, if any, to DTC is the responsibility of ML&Co. or the trustee,
disbursement of such payments to direct participants is the responsibility of
DTC, and disbursement of such payments to the beneficial owners is the
responsibility of direct and indirect participants.

     Exchange for Certificated Securities

     If

     (a)  the depositary is at any time unwilling or unable to continue as
          depositary and a successor depositary is not appointed by ML&Co.
          within 60 days,

     (b)  ML&Co. executes and delivers to the trustee a company order to the
          effect that the global securities shall be exchangeable , and

     (c)  an Event of Default under the 1983 Indenture has occurred and is
          continuing with respect to the securities,

the global securities will be exchangeable for securities in definitive form
of like tenor and of an equal aggregate principal amount, in denominations of
$1,000 and integral multiples of $1,000. The definitive securities will be
registered in such name or names as the depositary shall instruct the trustee.
It is expected that such instructions may be based upon directions received by
the depositary from participants with respect to ownership of beneficial
interests in the global securities.

     In addition, ML&Co. may decide to discontinue use of the system of
book-entry transfers through the depositary. In that event, SMART Notes in
definitive form will be printed and delivered.

     The information in this section concerning DTC and DTC's system has been
obtained from sources that ML&Co. believes to be reliable, but ML&Co. takes no
responsibility for its accuracy.
    


                              THE AMEX OIL INDEX

   
     The AMEX Oil Index is a price-weighted stock index, i.e., an Underlying
Stock's weight in the index is based on its price per share rather than the
total market capitalization of the issuer, calculated, published and
disseminated by the AMEX that measures the composite price performance of
selected common stocks of widely-held corporations involved in various
segments of the oil industry. The AMEX Oil Index was originally published by
the AMEX as the Oil and Gas Index. In September 1984, the AMEX changed the Oil
and Gas Index from a market-weighted index to a price-weighted index and
deleted all companies engaged exclusively in gas exploration and production
activities. The Oil and Gas Index was then renamed the Oil Index. At March 24,
1994, the calculation of the value of the AMEX Oil Index was based on the
relative value of the aggregate market price of the common stocks of sixteen
companies engaged in various segments of the oil industry.

     The AMEX may from time to time, with approval of the SEC, add companies
to, or delete companies from, the AMEX Oil Index to fulfill the above-stated
intention of providing an indication of price movements of common stock of
corporations engaged in various segments of the oil industry. The level of the
AMEX Oil Index is calculated once per day using last sale prices only, i.e.,
not special "bid quotes" or special "ask quotes" which are used in connection
with other stock indices.

     The level of the AMEX Oil Index is disseminated via the Consolidated Tape
Authority Network-B, also known as the "AMEX Tape". The AMEX Tape Symbol for
the AMEX Oil Index is "XOI".
    

Computation of the AMEX Oil Index

     At March 24, 1994, the AMEX computed the AMEX Oil Index as of a
particular time as follows:

   
     (a)  the market price of one share of each component stock is determined
          as of such time;

     (b)  the market prices of all component stocks as of such time (as
          determined under clause (a) above) are aggregated;

     (c)  the aggregate amount (as determined under clause (b) above) is
          divided by 3.47874.

     While the AMEX employed the above methodology to calculate the AMEX Oil
Index at March 24, 1994, no assurance can be given that the AMEX will not
modify or change such methodology in a manner that may affect the amounts
payable on any December Payment Date to beneficial owners of the SMART Notes.

     In order to maintain continuity in the level of the AMEX Oil Index in the
event of certain changes due to non-market factors affecting the Underlying
Stocks, such as the addition or deletion of stocks, substitution of stocks,
stock dividends, stock splits or distributions of assets to stockholders, the
divisor used in calculating the AMEX Oil Index is adjusted in a manner
designed to prevent any instantaneous change or discontinuity in the level of
the AMEX Oil Index. Thereafter, the divisor remains at the new value until a
further adjustment is necessary as the result of another change. As a result
of each such change affecting any component stock, the divisor is adjusted in
such a way that the level of the AMEX Oil Index immediately after any change
will equal the level of the AMEX Oil Index immediately prior to the change.

     Component stocks may be deleted or added by the AMEX with approval of the
SEC. However, to maintain continuity in the AMEX Oil Index, the policy of the
AMEX is generally not to alter the composition of the component stocks except
when a component stock is deleted due to
    

     (a)  bankruptcy of the issuer,

   
     (b)  merger of the issuer with, or acquisition of the issuer by, another
          company,

     (c)  delisting of such stock, or

     (d)  failure of such stock to meet, upon periodic review by the AMEX,
          market value and trading volume criteria established by the AMEX (as
          such may change from time to time).
    

Upon deletion of a stock from the component stocks, the AMEX may select a
suitable replacement for such deleted component stock. The policy of the AMEX
is to announce any such change in advance via distribution of an information
circular.

   
     The use of and reference to the AMEX Oil Index in connection with the
SMART Notes has been consented to by the AMEX, the publisher of the AMEX Oil
Index and, in connection with that consent, the AMEX has requested that the
following information appear in this prospectus. The AMEX is under no
obligation to continue the calculation and dissemination of the AMEX Oil
Index. The SMART Notes are not sponsored, endorsed, sold or promoted by the
AMEX. No inference should be drawn from the information contained in this
prospectus that the AMEX makes any representation or warranty, implied or
express, to ML&Co., beneficial owners of the SMART Notes or any member of the
public regarding the advisability of investing in securities generally or in
the SMART Notes in particular or the ability of the AMEX Oil Index to track
general stock market performance. The AMEX has no obligation to take the needs
of ML&Co. or beneficial owners of the SMART Notes into consideration in
determining, composing or calculating the AMEX Oil Index. The AMEX is not
responsible for, and has not participated, in the determination or calculation
of the equation by which the SMART Notes with respect to the annual payments
will be determined. The AMEX has no obligation or liability in connection with
the administration, marketing or trading of the SMART Notes. The AMEX
disclaims all responsibility for any errors or omissions in the calculation
and dissemination of the AMEX Oil Index or the manner in which the index is
applied in determining the annual payments with respect to the SMART Notes.

     None of ML&Co., the calculation agent, MLPF&S nor the trustee accepts any
responsibility for the calculation, maintenance or publication of the AMEX Oil
Index or any Successor Index.

     You should review the historical prices of the securities underlying the
Amex Oil Index. The historical prices of the securities should not be taken as
an indication of future performance, and no assurance can be given that the
prices of the securities will increase sufficiently to cause the beneficial
owners of the SMART Notes to receive an amount in excess of the Minimum Annual
Payment on any December Payment Date and at the maturity of the SMART Notes.
    

Oil Industry Sector

   
     The oil industry is subject to varying degrees of regulatory, political
and economic risk which may affect the price of the stocks of the companies in
the industry. These risks depend on a number of factors including the
countries in which a particular company conducts its activities, evolving
levels of governmental regulation, and litigation with respect to
environmental and other matters. All segments of the oil industry are
competitive, including manufacturing, distribution and marketing of petroleum
products and petrochemicals. In addition, the oil industry competes with other
industries in supplying the energy needs of various types of consumers.
Refining margins or the difference between the price of products and the price
of crude oil, and marketing margins or the difference between the wholesale
and retail price of petroleum products, also affect companies engaged in the
oil industry.
    

     The profitability of companies engaged in the oil industry is directly
affected by the worldwide price of oil and related petroleum products which,
in turn, depends upon the worldwide demand for oil and related petroleum
products.

   
     Environmental regulation is a significant factor affecting profitability
of companies engaged in the oil industry. In the U.S., companies engaged in
the oil industry are subject to substantial environmental regulation by
federal, state, and local authorities. Federal regulations include the
Comprehensive Environmental Response, Compensation and Liability Act of 1980,
as amended or also known as CERCLA or Superfund, the Superfund Amendments and
Reauthorizations Act of 1986, and the Resource Conservation Recovery Act of
1976.
    

     In the United States and elsewhere, various laws and regulations are
either now in force, in standby status or under consideration, with respect to
such matters as price controls, crude oil and refined product allocations,
refined product specifications, environmental, health and safety regulations,
retroactive and prospective tax increases, cancellation of contract rights,
expropriation of property, divestiture of certain operations, foreign exchange
rate restrictions as to the convertibility of currencies, tariffs and other
international trade restrictions. Other regulations such as the U.S. Federal
Clean Air Act Amendments of 1990 may have a substantial impact on companies
engaged in the oil industry despite the fact that they do not impose direct
regulations. Finally, regional regulations like those proposed by California's
South Coast Air Quality Management District may have substantial effects on
the oil industry as well.


                                  OTHER TERMS

   
     The SMART Notes were issued as a series of senior debt securities under
the 1983 Indenture, dated as of April 1, 1983, as amended and restated,
between ML&Co. and The Chase Manhattan Bank, as trustee. A copy of the 1983
Indenture is filed as an exhibit to the registration statement relating to the
SMART Notes of which this prospectus is a part. The following summaries of the
material provisions of the 1983 Indenture are not complete and are subject to,
and qualified in their entirety by reference to, all provisions of the 1983
Indenture, including the definitions of terms in the 1983 Indenture.

     Series of senior debt securities may from time to time be issued under
the 1983 Indenture, without limitation as to aggregate principal amount, in
one or more series and upon terms as ML&Co. may establish under the provisions
of the 1983 Indenture.

     The 1983 Indenture and the SMART Notes are governed by and construed in
accordance with the laws of the State of New York.

     ML&Co. may issue senior debt securities with terms different from those
of senior debt securities previously issued, and issue additional senior debt
securities of a previously issued series of senior debt securities.

     The senior debt securities are unsecured and rank equally with all other
unsecured and unsubordinated indebtedness of ML&Co. However, because ML&Co. is
a holding company, the rights of ML&Co. and its creditors, including the
holders of senior debt securities, to participate in any distribution of the
assets of any subsidiary upon its liquidation or reorganization or otherwise
is necessarily subject to the prior claims of creditors of the subsidiary,
except to the extent that claims of ML&Co. itself as a creditor of the
subsidiary may be recognized. In addition, dividends, loans and advances from
certain subsidiaries, including MLPF&S, to ML&Co. are restricted by net
capital requirements under the Exchange Act, and under rules of exchanges and
other regulatory bodies.
    

Limitations Upon Liens

   
     ML&Co. may not, and may not permit any majority-owned subsidiary to,
create, assume, incur or permit to exist any indebtedness for borrowed money
secured by a pledge, lien or other encumbrance, other than those liens
specifically permitted by the 1983 Indenture, on the Voting Stock owned
directly or indirectly by ML&Co. of any majority-owned subsidiary, other than
a majority-owned subsidiary which, at the time of the incurrence of the
secured indebtedness, has a net worth of less than $3,000,000, unless the
outstanding senior debt securities are secured equally and ratably with the
secured indebtedness.

     "Voting Stock" is defined in the 1983 Indenture as the stock of the class
or classes having general voting power under ordinary circumstances to elect
at least a majority of the board of directors, managers or trustees of a
corporation provided that, for the purposes of the 1983 Indenture, stock that
carries only the right to vote conditionally on the occurrence of an event is
not considered voting stock whether or not the event has happened.
    

Limitation on Disposition of Voting Stock of, and Merger and Sale of Assets by,
MLPF&S

   
     ML&Co. may not sell, transfer or otherwise dispose of any Voting Stock of
MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of its
Voting Stock, unless, after giving effect to any such transaction, MLPF&S
remains a Controlled Subsidiary.

     "Controlled Subsidiary" is defined in the 1983 Indenture to mean a
corporation more than 80% of the outstanding shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

     In addition, ML&Co. may not permit MLPF&S to:

     o    merge or consolidate, unless the surviving company is a Controlled
          Subsidiary, or
    

     o    convey or transfer its properties and assets substantially as an
          entirety, except to one or more Controlled Subsidiaries.

Merger and Consolidation

   
     ML&Co. may consolidate or merge with or into any other corporation and
ML&Co. may sell, lease or convey all or substantially all of its assets to any
corporation, provided that:

     o    the resulting corporation, if other than ML&Co., is a corporation
          organized and existing under the laws of the United States of
          America or any U.S. state and assumes all of ML&Co.'s obligations
          to:

          o    pay any amounts due and payable or deliverable with respect to
               all the Senior Debt Securities ; and

          o    perform and observe of all of ML&Co.'s obligations under the
               1983 Indenture, and

     o    ML&Co. or the successor corporation, as the case may be, is not,
          immediately after any consolidation or merger, in default under the
          1983 Indenture.
    

Modification and Waiver

   
     ML&Co. and the trustee may modify and amend the 1983 Indenture with the
consent of holders of at least 66 2/3% in principal amount of each outstanding
series of debt securities affected. However, without the consent of each
holder of any outstanding debt security affected, no amendment or modification
to any Indenture may:

     o    change the stated maturity date of the principal of, or any
          installment of interest or Additional Amounts payable on, any senior
          debt security or any premium payable on redemption , or change the
          redemption price;

     o    reduce the principal amount of, or the interest or Additional
          Amounts payable on, any senior debt security or reduce the amount of
          principal which could be declared due and payable before the stated
          maturity date;

     o    change the place or currency of any payment of principal or any
          premium, interest or Additional Amounts payable on any senior debt
          security;

     o    impair the right to institute suit for the enforcement of any
          payment on or with respect to any senior debt security;

     o    reduce the percentage in principal amount of the outstanding senior
          debt securities of any series, the consent of whose holders is
          required to modify or amend the 1983 Indenture; or

     o    modify the foregoing requirements or reduce the percentage of
          outstanding senior debt securities necessary to waive any past
          default to less than a majority.

     No modification or amendment of ML&Co.'s Subordinated Indenture or any
Subsequent Indenture for subordinated debt securities may adversely affect the
rights of any holder of ML&Co.'s senior indebtedness without the consent of
each holder affected. The holders of at least a majority in principal amount
of outstanding senior debt securities of any series may, with respect to that
series, waive past defaults under the Indenture and waive compliance by ML&Co.
with provisions in the 1983 Indenture, except as described under "--Events of
Default".

Events of Default

     Each of the following will be Events of Default with respect to senior
debt securities of any series:

     o    default in the payment of any interest or Additional Amounts payable
          when due and continuing for 30 days;

     o    default in the payment of any principal or premium when due;

     o    default in the deposit of any sinking fund payment, when due;

     o    default in the performance of any other obligation of ML&Co.
          contained in the Indenture for the benefit of that series or in the
          senior debt securities of that series, continuing for 60 days after
          written notice as provided in the 1983 Indenture;

     o    specified events in bankruptcy, insolvency or reorganization of
          ML&Co.; and

     o    any other Event of Default provided with respect to senior debt
          securities of that series which are not inconsistent with the 1983
          Indenture.

     If an Event of Default occurs and is continuing for any series of senior
debt securities, other than as a result of the bankruptcy, insolvency or
reorganization of ML&Co., the trustee or the holders of at least 25% in
principal amount of the outstanding senior debt securities of that series may
declare all amounts, or any lesser amount provided for in the senior debt
securities, due and payable or deliverable immediately. At any time after a
declaration of acceleration has been made with respect to senior debt
securities of any series but before the trustee has obtained a judgment or
decree for payment of money , the holders of a majority in principal amount of
the outstanding senior debt securities of that series may rescind any
declaration of acceleration and its consequences, if all payments due, other
than those due as a result of acceleration, have been made and all Events of
Default have been remedied or waived.

     The holders of a majority in principal amount or aggregate issue price of
the outstanding debt securities of any series of senior debt securities may
waive an Event of Default for that series, except a default:

     o    in the payment of any amounts due and payable or deliverable under
          the debt securities of that series; or

     o    in respect of an obligation or provision of any Indenture which
          cannot be modified under the terms of that Indenture without the
          consent of each holder of each series of debt securities affected.

     The holders of a majority in principal amount of the outstanding senior
debt securities of a series may direct the time, method and place of
conducting any proceeding for any remedy available to the trustee or
exercising any trust or power conferred on the trustee with respect to those
senior debt securities, provided that any direction shall not be in conflict
with any rule of law or the 1983 Indenture. Before proceeding to exercise any
right or power under the 1983 Indenture at the direction of the holders, the
trustee shall be entitled to receive from the Holders reasonable security or
indemnification against the costs, expenses and liabilities which might be
incurred by it in complying with any direction.

     The SMART Notes and other series of senior debt securities issued under
the 1983 Indenture do not have the benefit of any cross-default provisions
with other indebtedness of ML&Co.

     ML&Co. is required to furnish to the trustee annually a statement as to
the fulfillment by ML&Co. of all of its obligations under the 1983 Indenture.
    


<PAGE>


   
                      WHERE YOU CAN FIND MORE INFORMATION

     We file reports, proxy statements and other information with the SEC. Our
SEC filings are also available over the Internet at the SEC's web site at
http://www.sec.gov. You may also read and copy any document we file by
visiting the SEC's public reference rooms in Washington, D.C., New York, New
York, and Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further
information about the public reference rooms. You may also inspect our SEC
reports and other information at the New York Stock Exchange, Inc., 20 Broad
Street, New York, New York 10005.

     We have filed a registration statement on Form S-3 with the SEC covering
the SMART Notes and other securities. For further information on ML&Co. and
the SMART Notes, you should refer to our registration statement and its
exhibits. This prospectus summarizes material provisions of contracts and
other documents that we refer you to. Because the prospectus may not contain
all the information that you may find important, you should review the full
text of these documents. We have included copies of these documents as
exhibits to our registration statement of which this prospectus is a part.


INCORPORATION OF INFORMATION WE FILE WITH THE SEC

     The SEC allows us to incorporate by reference the information we file
with them, which means:

     o    incorporated documents are considered part of the prospectus;

     o    we can disclose important information to you by referring you to
          those documents; and

     o    information that we file with the SEC will automatically update and
          supersede this incorporated information.

     We incorporate by reference the documents listed below which were filed
with the SEC under the Exchange Act:

     o    annual report on Form 10-K for the year ended December 25, 1998; and

     o    current reports on Form 8-K dated December 28, 1998, January 19,
          1999, February 17, 1999, February 18, 1999, February 22, 1999,
          February 23, 1999 and March 26, 1999.

     We also incorporate by reference each of the following documents that we
will file with the SEC after the date of this prospectus until this offering
is completed or after the date of this initial registration statement and
before the effectiveness of the registration statement:

     o    reports filed under Sections 13(a) and (c) of the Exchange Act;

     o    definitive proxy or information statements filed under Section 14 of
          the Exchange Act in connection with any subsequent stockholders'
          meeting; and

     o    any reports filed under Section 15(d) of the Exchange Act.

     You should rely only on information contained or incorporated by
reference in this prospectus. We have not, and MLPF&S has not, authorized any
other person to provide you with different information. If anyone provides you
with different or inconsistent information, you should not rely on it. We are
not, and MLPF&S is not, making an offer to sell these securities in any
jurisdiction where the offer or sale is not permitted.

     You should assume that the information appearing in this prospectus is
accurate as of the date of this prospectus only. Our business, financial
condition and results of operations may have changed since that date.

     You may request a copy of any filings referred to above (excluding
exhibits), at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan, Jr., Corporate Secretary's Office, Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.


                             PLAN OF DISTRIBUTION

     This prospectus has been prepared in connection with secondary sales of
the SMART Notes and is to be used by MLPF&S when making offers and sales
related to market-making transactions in the SMART Notes.

     MLPF&S may act as principal or agent in these market-making transactions.

     The SMART Notes may be offered on the AMEX or off the exchange in
negotiated transactions or otherwise.

     The distribution of the SMART Notes will conform to the requirements set
forth in the applicable sections of Rule 2720 of the Conduct Rules of the
NASD.
    


                                    EXPERTS

   
     The consolidated financial statements and the related financial statement
schedule incorporated in this prospectus by reference from the Annual Report
on Form 10-K of Merrill Lynch & Co., Inc. and subsidiaries 
have been audited by Deloitte & Touche LLP, independent auditors, as stated in
their reports (which express an unqualified opinion and which report on the
consolidated financial statements includes an explanatory paragraph 
for the change in accounting method for certain internal-use software
development costs), which are incorporated herein by reference, and have been
so incorporated in reliance upon the reports of such firm given upon their
authority as experts in accounting and auditing.

         
    


<PAGE>
   
The information in this prospectus is not complete and may be changed. We may
not sell these securities until the registration statement filed with the
Securities and Exchange Commission is effective. This prospectus is not an
offer to sell these securities and it is not soliciting an offer to buy these
securities in any state where the offer or sale is not permitted.
    


                             Subject to Completion
   
                  Preliminary Prospectus dated March 29, 1999
    

P R O S P E C T U S

                           Merrill Lynch & Co., Inc.

   
    6% Structured Yield Product Exchangeable for Stock SM due June 1, 1999
                                 "STRYPES SM"
    Payable with Shares of Class A Common Stock of Cox Communications, Inc.
                          or cash with an equal value
    
                                 -------------

   
     Merrill Lynch & Co., Merrill Lynch, Pierce, Fenner & Smith Incorporated,
our wholly-owned subsidiary, will use this prospectus when making offers and
sales related to market-making transactions in the STRYPES.

     The issue price of each STRYPES was $22.875, which was the last sale
price of the class A common stock, par value $1.00 per share, of Cox, on May
22, 1996, as reported on the New York Stock Exchange. The STRYPES will mature
on June 1, 1999.

                  What you will receive before June 1, 1999:
    

o    On each March 1, June 1, September 1 and December 1, beginning September
     1, 1996, we will pay you interest on the STRYPES in cash at the rate of
     6% per year.

   
o    We may redeem the STRYPES, in whole but not in part, at any time after a
     tax event date at the tax event redemption price, which is more fully
     described in this prospectus.

                    What you will receive on June 1, 1999:

o    For each STRYPES you own, you will receive a number of shares of class A
     common stock of Cox or an equivalent amount in cash based on (1) the
     average closing price per share of the class A common stock of Cox during
     a certain number of trading days before the maturity date and (2) the
     fair market value of any dividends, distributions or other distributed
     assets for one share of class A common stock of Cox.

        If the price on June 1, 1999 is:      You will receive:

        (a)  greater than $27.91             .8196  shares of class A common
        (b) less than  $27.91 but greater    stock a fractional share of
             than $22.875                    class A common stock equal to
      (c)   less than $22.875                $22.875 one share of class A
                                             common stock

Investing in the STRYPES involves risks, including the risk that your investment
         may result in a loss. See "Risk Factors" beginning on page 3.


     The STRYPES are listed on the NYSE under the symbol "CML".
    

     Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if
this prospectus is truthful or complete. Any representation to the contrary is
a criminal offense.

   
     The sale price of the STRYPES will be the prevailing price at the time of
sale.
    

                          ---------------------------
                              Merrill Lynch & Co.
                          ---------------------------
                                        
                    The date of this prospectus is , 1999.

"STRYPES" and "Structured Yield Product Exchangeable for Stock" are registered
service marks owned by ML&Co.
    


<PAGE>


   
                                                     TABLE OF CONTENTS


RISK FACTORS...........................................................3

MERRILL LYNCH & CO., INC...............................................7

RATIO OF EARNINGS TO FIXED CHARGES.....................................8

COX COMMUNICATIONS, INC................................................9

DESCRIPTION OF THE STRYPES.............................................9

OTHER TERMS...........................................................20

CERTAIN ARRANGEMENTS WITH CEI.........................................23

WHERE YOU CAN FIND MORE INFORMATION...................................24

INCORPORATION OF INFORMATION WE FILE WITH THE SEC.....................24

PLAN OF DISTRIBUTION..................................................25

EXPERTS...............................................................26
    

<PAGE>

   
                                 RISK FACTORS

     Your investment in the STRYPES will involve risks. You should carefully
consider the following discussion of risks before deciding whether an
investment in the STRYPES is suitable for you.

You may suffer a loss on your investment

     You should be aware that at maturity the amount you will receive may be
less than the amount you paid for the STRYPES, which was $22.875 per STRYPES.
If the maturity price of the class A common stock of Cox is less than $22.875,
the amount you will receive will be less than the amount you paid for the
STRYPES and, therefore, your investment in the STRYPES will result in a loss
to you. When you invest in the STRYPES, you assume the risk that the market
value of the class A common stock of Cox may decline, and that the decline
could be substantial.

Your investment in the STRYPES may differ from an investment in other debt
securities

     The terms of the STRYPES differ from those of ordinary debt securities
because the maturity price of the class A common stock of Cox or the
equivalent amount in cash that you will receive on the maturity date is not
fixed, but is based on the maturity price of the class A common stock of Cox.
Please review the section entitled "Description of the STRYPES".

There may be a limited opportunity for equity appreciation 

     Your opportunity for equity appreciation may be greater if you made a
direct investment in the class A common stock of Cox because the price of the
class A common stock of Cox is subject to market fluctuations. The amount you
will receive on the maturity date will only exceed the amount you paid for the
STRYPES, which was $22.875 per STRYPES, if the maturity price of the class A
common stock of Cox exceeds the threshold appreciation price of $27.91. The
threshold appreciation price of $27.91 represents an appreciation of 22% over
the initial price of $22.875. In addition, you will only be entitled to
receive on the maturity date 81.96%, which is the percentage equal to the
initial price of $22.875 divided by the threshold appreciation price of
$27.91, of any appreciation of the value of the class A common stock of Cox in
excess of the threshold appreciation price of $27.91. Please review the
section entitled "Description of the STRYPES".

There are many factors affecting the trading prices of the STRYPES

     The trading prices of the STRYPES in the secondary market will be
directly affected by the trading prices of the class A common stock of Cox in
the secondary market. It is impossible to predict whether the price of the
class A common stock of Cox will rise or fall because several factors may
influence the trading prices of the class A common stock of Cox. These factors
include:

     o    Cox's operating results and prospects,

     o    complex and interrelated political, economic, financial and other
          factors and market conditions that can affect (1) the capital
          markets generally, (2) the market segment of which Cox is a part, or
          (3) the NYSE, on which the class A common stock of Cox is traded,
          including the level of, and fluctuations in, the trading prices of
          stocks generally and sales of substantial amounts of the class A
          common stock of Cox in the market subsequent to the offering of the
          STRYPES or the perception that these sales could occur, and

     o    other events that are difficult to predict and are beyond our
          control.

Investing in the STRYPES may affect the market for the class A common stock of
Cox

     Any market that develops for the STRYPES is likely to influence and be
influenced by the market for the class A common stock of Cox. For example, the
price of class A common stock of Cox could become more volatile and could be
depressed by investors' anticipation of the potential distribution into the
market of substantial amounts of class A common stock of Cox on the maturity
date, by possible sales of class A common stock of Cox by investors who view
the STRYPES as a more attractive means of equity participation in Cox, and by
hedging or arbitrage trading activity that may develop involving the STRYPES
and the class A common stock of Cox. In addition, Cox Enterprises, Inc. is not
precluded from selling shares of class A common stock of Cox, either under
Rule 144 of the Securities Act or by causing Cox to register shares of common
stock. These activities could adversely affect the market price of the class A
common stock of Cox and the STRYPES and could affect the payment rate formula.

There may be illiquidity of the STRYPES in the secondary market

     It is not possible to predict how the STRYPES will trade in the secondary
market or whether the secondary market for the STRYPES will be liquid or
illiquid. The STRYPES are novel securities and there is currently no secondary
market for the STRYPES. Although the STRYPES are listed on the NYSE under the
symbol "CML", you cannot assume (a) that an active trading market for the
STRYPES will develop, (b) that listing on the NYSE will provide you with
liquidity of investment, (c) that the STRYPES will not later be delisted or
(d) that trading of the STRYPES on the NYSE will not be suspended. If the NYSE
delists the STRYPES or suspends the trading of the STRYPES, we will apply for
listing of the STRYPES on another national securities exchange or for
quotation on another trading market. If the STRYPES are not listed or traded
on any securities exchange or trading market, or if trading of the STRYPES is
suspended, pricing information for the STRYPES may be more difficult to obtain
and the liquidity of the STRYPES may be adversely affected.

As a holder of STRYPES,  you have no stockholder's  rights with respect to the
class A common stock of Cox

     You will not be entitled to any rights, including voting rights and
rights to receive any dividends or other distributions for the class A common
stock of Cox, until we have delivered the shares of class A common stock of
Cox on the maturity date or the redemption date. In addition, you will not be
entitled to any rights if the applicable record date for the exercise of any
rights occurs before the maturity date or the redemption date. For example, if
an amendment is proposed to the certificate of incorporation of Cox and the
record date for determining the stockholders of record entitled to vote on the
amendment occurs before we deliver the class A common stock of Cox, you, as a
holder of the STRYPES, will not be entitled to vote on the proposed amendment.

Cox has no obligations with respect to the STRYPES

     We are not affiliated with Cox. Cox has no obligations with respect to
the STRYPES or amounts to be paid to you, including any obligation to take our
needs or yours, as a holder of the STRYPES, into consideration for any reason.
Cox will not receive any of the proceeds of this offering of the STRYPES. Cox
is not responsible for, and has not participated in, the determination of the
timing of, prices for or quantities of the STRYPES to be issued, or the
determination or calculation of the amount you may receive on the maturity
date or the redemption date. In addition, Cox is not involved with the
administration or trading of the STRYPES.

There may be a dilution of common stock of Cox

     The number of shares of class A common stock of Cox or the equivalent
amount of cash that you are entitled to receive on the maturity date or the
redemption date is subject to adjustment for events such as:

     o    a merger or consolidation in which Cox is not the surviving or
          resulting corporation,

     o    a sale or transfer of all or substantially all of the assets of Cox,

     o    the liquidation, dissolution, winding up or bankruptcy of Cox,

     o    stock splits and combinations, stock dividends, and

     o    other actions of Cox that modify its capital structure.

Please  review the  section  entitled  "Description  of the  STRYPES--Dilution
Adjustments" and "--Special Redemption Upon Tax Event".

     The number of shares of class A common stock of Cox or the equivalent
amount of cash that you may receive on the maturity date or redemption date
will not be adjusted for other events, such as offerings of class A common
stock of Cox for cash or in connection with acquisitions. Cox is not
restricted from issuing additional shares of class A common stock during the
term of the STRYPES and has no obligation to consider the interests of the
holders of the STRYPES for any reason. Additional issuances may materially and
adversely affect the price of the class A common stock of Cox. Because of the
relationship of the number of shares of class A common stock of Cox or cash to
be received on the maturity date or redemption date to the price of the class
A common stock of Cox, other events may adversely affect the trading price of
the STRYPES.

The tax treatment of STRYPES is uncertain

     Because of an absence of authority as to the proper characterization of
the STRYPES, their ultimate tax treatment is uncertain. Accordingly, you
cannot assume that any particular characterization and treatment of the
STRYPES will be accepted by the Internal Revenue Service or upheld by a court.
However, it is the opinion of Brown & Wood LLP, counsel to ML&Co., that the
characterization and tax treatment of the STRYPES described in this
prospectus, while not the only reasonable characterization and tax treatment,
is based on reasonable interpretations of law currently in effect and, even if
successfully challenged by the IRS, will not result in the imposition of
penalties.

     Under the 1983 indenture, which is more fully described in this
prospectus, if you are subject to U.S. Federal income tax, you are required to
include currently in income, for U.S. Federal income tax purposes, payments
denominated as interest that are made with respect to a STRYPES in accordance
with your regular method of tax accounting. You, as a holder of the STRYPES,
and ML&Co. are also required to treat each STRYPES for tax purposes as a unit
consisting of

     o    a debt instrument with a fixed principal amount unconditionally
          payable on the maturity date equal to the issue price of the STRYPES
          and bearing interest at the stated interest rate on the STRYPES, and

     o    a forward purchase contract under which you agree to use the
          principal payment due on the debt instrument to purchase on the
          maturity date or redemption date the class A common stock of Cox
          which ML&Co. is obligated to deliver at that time, subject to
          ML&Co.'s right to deliver cash instead of the class A common stock
          of Cox.

The 1983 indenture also requires that upon the acquisition of a STRYPES and
upon your sale or other disposition of a STRYPES before the maturity date, the
amount paid or realized be allocated between the debt instrument and the
forward purchase contract based upon their relative fair market values, as
determined on the date of acquisition or disposition. For these purposes, with
respect to acquisitions of STRYPES in connection with the original issuance
thereof, ML&Co. and you agree to allocate $22.555 of the entire initial
purchase price of a STRYPES, which is the issue price of a STRYPES, to the
debt instrument and to allocate the remaining $.32 of the entire initial
purchase price of a STRYPES to the forward purchase contract. As a result of
this allocation, the debt instrument will be treated as having been issued
with original issue discount for U.S. Federal income tax purposes.

     The appropriate character and timing of income, gain or loss to be
recognized on a STRYPES is uncertain. You should consult your own tax adviser
concerning the application of the U.S. Federal income tax laws to your
particular situation as well as any consequences of the purchase, ownership
and disposition of the STRYPES arising under the laws of any other taxing
jurisdiction.

Our holding company structure may affect your right to participate in any
distribution of assets of any subsidiary

     Since we are a holding company, our right and the right of our creditors,
including you, as a holder of STRYPES, to participate in any distribution of
the assets of any subsidiary upon its liquidation or reorganization or
otherwise is necessarily subject to the prior claims of creditors of the
subsidiary, except to the extent a bankruptcy court may recognize our claims
as a creditor of the subsidiary. In addition, dividends, loans and advances
from certain subsidiaries, including MLPF&S, to us are restricted by net
capital requirements under the Exchange Act and under rules of exchanges and
other regulatory bodies.

Other Considerations

     We suggest that you reach an investment decision only after carefully
considering the suitability of the STRYPES in the light of your particular
circumstances.
    

<PAGE>

   
                           MERRILL LYNCH & CO., INC.

     We are a holding company that, through our U.S. and non-U.S. subsidiaries
and affiliates such as Merrill Lynch, Pierce, Fenner & Smith Incorporated,
Merrill Lynch Government Securities Inc., Merrill Lynch Capital Services,
Inc., Merrill Lynch International, Merrill Lynch Capital Markets Bank Ltd.,
Merrill Lynch Asset Management L.P. and Merrill Lynch Mercury Asset
Management, provides investment, financing, advisory, insurance, and related
products on a global basis, including:

     o    securities brokerage, trading and underwriting;

     o    investment banking, strategic services, including mergers and
          acquisitions and other corporate finance advisory activities;

     o    asset management and other investment advisory and recordkeeping
          services;

     o    trading and brokerage of swaps, options, forwards, futures and other
          derivatives;

     o    securities clearance services;

     o    equity, debt and economic research;

     o    banking, trust and lending services, including mortgage lending and
          related services; and

     o    insurance sales and underwriting services.

     We provide these products and services to a wide array of clients,
including individual investors, small businesses, corporations, governments,
governmental agencies and financial institutions.

     Our principal executive office is located at World Financial Center,
North Tower, 250 Vesey Street, New York, New York 10281; our telephone number
is (212) 449-1000.

     If you want to find more information about us, please see the sections
entitled "Where You Can Find More Information" and "Incorporation of
Information We File with the SEC" in this prospectus.

     In this prospectus, "ML&Co.", "we", "us" and "our" refer specifically to
Merrill Lynch & Co., Inc., the holding company. ML&Co. is the issuer of the
STRYPES described in this prospectus.
    

<PAGE>

   
                      RATIO OF EARNINGS TO FIXED CHARGES

     In 1998, we acquired the outstanding shares of Midland Walwyn, Inc., in a
transaction accounted for as a pooling-of-interests. The following information
for the fiscal years 1994 through 1997 has been restated as if the two
entities had always been combined.

     The following table sets forth our historical ratios of earnings to fixed
charges for the periods indicated:



                                         Year Ended Last Friday in December
                                        1994     1995     1996     1997     1998
                                        ----------------------------------------
Ratio of earnings to fixed charges(a)   1.2      1.2      1.2      1.2      1.1
- ----------
(a)  The effect of combining Midland Walwyn did not change the ratios reported
     for the fiscal years 1994 through 1997.

     For the purpose of calculating the ratio of earnings to fixed charges,
"earnings" consist of earnings from continuing operations before income taxes
and fixed charges, excluding capitalized interest and preferred security
dividend requirements. "Fixed charges" consist of interest costs, the interest
factor in rentals, amortization of debt issuance costs, preferred security
dividend requirements of subsidiaries, and capitalized interest.
    

<PAGE>


   
                           COX COMMUNICATIONS, INC.

     Cox is the fifth largest operator of cable television systems in the
United States and is a fully integrated, diversified media and broadband
communications company with operations and investments in three related areas:
(1) U.S. broadband networks; (2) United Kingdom broadband networks; and (3)
cable television programming.

     Cox is subject to the informational requirements of the Exchange Act.
Accordingly, Cox files reports, proxy and information statements and other
information with the SEC. Copies of such material can be inspected and copied
at the public reference facilities maintained by the SEC at the addresses
specified under "Where You Can Find More Information". Reports, proxy and
information statements and other information concerning Cox may also be
inspected at the offices of the NYSE.

     ML&Co. is not affiliated with Cox, and Cox has no obligations with
respect to the STRYPES. This prospectus relates only to the STRYPES offered
hereby and does not relate to the class A common stock of Cox. Cox has filed a
registration statement on Form S-3 with the SEC covering the shares of class A
common stock of Cox that may be received by a holder of STRYPES on the
maturity date or upon redemption. The prospectus of Cox constituting a part of
the registration statement includes information relating to Cox and its class
A common stock, including important factors relevant to an investment in the
class A common stock of Cox. The prospectus of Cox does not constitute a part
of this prospectus, nor is it incorporated by reference herein or therein.


                          DESCRIPTION OF THE STRYPES

     ML&Co. issued the STRYPES as a series of senior debt securities under the
1983 indenture, which is more fully described in this prospectus. The
following summary of material provisions of the 1983 indenture does not
purport to be complete and is qualified in its entirety by reference to the
1983 indenture. A copy of the 1983 indenture is filed as an exhibit to the
registration statement of which this prospectus is a part.

     Each STRYPES, which was issued at a price of $22.875 (the "Initial
Price"), bears interest at the rate of 6% of the issue price per annum, or
$1.37 per annum, from May 29, 1996, or from the most recent Interest Payment
Date to which interest has been paid or provided for, until the maturity date
or such earlier date on which the STRYPES is redeemed or the issue price of
the STRYPES is repaid pursuant to the terms of the STRYPES. Interest on the
STRYPES will be payable in cash quarterly in arrears on March 1, June 1,
September 1 and December 1, beginning September 1, 1996, and on the maturity
date (each, an "Interest Payment Date"), to the persons in whose names the
STRYPES are registered at the close of business on the last day (whether or
not a Business Day) of the calendar month immediately preceding such Interest
Payment Date. Interest on the STRYPES will be computed on the basis of a
360-day year of twelve 30-day months. If an Interest Payment Date falls on a
day that is not a Business Day, the interest payment to be made on such
Interest Payment Date will be made on the next succeeding Business Day with
the same force and effect as if made on the Interest Payment Date, and no
additional interest will accrue as a result of the delayed payment.

     The maturity date of the STRYPES is June 1, 1999. On the maturity date,
unless previously redeemed, ML&Co. will pay and discharge each STRYPES by
delivering to the holder thereof a number of shares (the number of shares is
referred to in this prospectus as the "Payment Rate") of class A common stock
of Cox, subject to ML&Co.'s right to deliver, with respect to all, but not
less than all, shares of class A common stock of Cox deliverable on the
maturity date, cash with an equal value, as determined in accordance with the
"Payment Rate Formula" described below. The Payment Rate Formula is subject to
adjustment as a result of dilution events described in this prospectus.

     (a)  If the Maturity Price (as defined below) per share of class A common
          stock of Cox is greater than or equal to the Threshold Appreciation
          Price, the holder of the STRYPES will receive .8196 shares of class
          A common stock of Cox per STRYPES;

     (b)  If the Maturity Price is less than the Threshold Appreciation Price
          but is greater than the Initial Price, the holder of the STRYPES
          will receive a fractional share of class A common stock of Cox per
          STRYPES so that the value, which is determined based on the Maturity
          Price, is equal to the Initial Price; and

     (c)  If the Maturity Price is less than or equal to the Initial Price,
          the holder of the STRYPES will receive one share of class A common
          stock of Cox per STRYPES.

Accordingly, you, as a holder of the STRYPES, cannot assume that the amount
you will receive on the maturity date will be equal to or greater than the
issue price of the STRYPES. If the Maturity Price of the class A common stock
of Cox is less than the Initial Price, the amount you will receive on the
maturity date will be less than the issue price you paid for the STRYPES, in
which case an investment in STRYPES will result in a loss. The numbers of
shares of class A common stock of Cox per STRYPES specified in clauses (a) and
(c) of the Payment Rate Formula are referred to in this prospectus as the
"Share Components".

     Notwithstanding the foregoing, ML&Co. may, in lieu of delivering shares
of class A common stock of Cox, deliver cash in an amount equal to the value
of the number of shares of class A common stock of Cox at the Maturity Price,
subject to ML&Co.'s agreement contained in the STRYPES Agreement (as defined
below) to deliver on the maturity date the form of consideration that the
ML&Co. Subsidiary (as defined below) receives from Cox Enterprises, Inc.
("CEI"). The right to deliver cash, if exercised by ML&Co., must be exercised
with respect to all shares of class A common stock of Cox otherwise
deliverable on the maturity date in payment of all outstanding STRYPES. On or
before the sixth Business Day before the maturity date, ML&Co. will notify The
Depository Trust Company and the trustee and publish a notice in The Wall
Street Journal or another daily newspaper of national circulation stating
whether the STRYPES will be paid and discharged with shares of class A common
stock of Cox or cash. At the time the notice is published, the Maturity Price
will not have been determined. If ML&Co. elects to deliver shares of class A
common stock of Cox, holders of the STRYPES will be responsible for the
payment of any and all brokerage costs upon the subsequent sale of such stock.

     The "Maturity Price" is defined as the sum of

     (A)  the average Closing Price per share of class A common stock of Cox
          on the 20 Trading Days immediately before, but not including, the
          second Trading Day preceding the maturity date and

     (B)  the fair market value, as determined by the Board of Directors of
          ML&Co., whose determination shall be conclusive and described in a
          resolution adopted with respect thereto, as of the third Trading Day
          preceding the maturity date of the Distributed Assets (as defined
          below) applicable to one share of class A common stock of Cox.

     The "Closing Price" of any security on any date of determination means
(1) the closing sale price or, if no closing price is reported, the last
reported sale price of the security on the NYSE on the date of determination
or, (2) if the security is not listed for trading on the NYSE on any date, as
reported in the composite transactions for the principal United States
securities exchange on which the security is so listed, or (3) if the security
is not so listed on a United States national or regional securities exchange,
as reported by the National Association of Securities Dealers, Inc. Automated
Quotation System, or (4) if the security is not so reported, the last quoted
bid price for the security in the over-the-counter market as reported by the
National Quotation Bureau or similar organization, or (5) if a bid price is
not available, the market value of the security on the date of determination
as determined by a nationally recognized independent investment banking firm
retained for this purpose by ML&Co. In the event that the Payment Rate Formula
is adjusted as described under "--Dilution Adjustments" below, each of the
Closing Prices used in determining the Maturity Price will be similarly
adjusted to derive, for purposes of determining which of clauses (a), (b) or
(c) of the Payment Rate Formula will apply on the maturity date, a Maturity
Price stated on a basis comparable to the Initial Price and the Threshold
Appreciation Price.

     A "Trading Day" is defined as a day on which the security the Closing
Price of which is being determined (A) is not suspended from trading on any
national or regional securities exchange or association or over-the-counter
market at the close of business and (B) has traded at least once on the
national or regional securities exchange or association or over-the-counter
market that is the primary market for the trading of the security.

     For illustrative purposes only, the following table shows the number of
shares of class A common stock of Cox or the amount of cash that a holder of
STRYPES would receive for each STRYPES at various Maturity Prices. The table
assumes that there will be no dilution adjustments to the Payment Rate Formula
as described below. A holder of STRYPES cannot assume that the Maturity Price
will be within the range set forth below. Given the Initial Price of $22.875
and the Threshold Appreciation Price of $27.91, a STRYPES holder would receive
on the maturity date the following number of shares of class A common stock of
Cox or, if ML&Co. elects to pay and discharge the STRYPES with cash, the
amount of cash per STRYPES:
    

<PAGE>


   
     Maturity Price              Number of                                 
       of Class A            Shares of Class A                             
   Common Stock of Cox      Common Stock of Cox        Amount of Cash
      $20.000                      1.0000                $20.000
       22.875                      1.0000                 22.875
       25.000                      0.9150                 22.875
       27.910                      0.8196                 22.875
       30.000                      0.8196                 24.588


Dilution Adjustments

     The Payment Rate Formula is subject to adjustment if Cox shall:

     (1)  pay a stock dividend or make a distribution with respect to the
          class A common stock of Cox in shares of
          such stock;

     (2)  subdivide or split the outstanding shares of class A common stock of
          Cox into a greater number of shares;

     (3)  combine the outstanding shares of class A common stock of Cox into a
          smaller number of shares;

     (4)  issue by reclassification of shares of class A common stock of Cox
          any shares of class A common stock of Cox;

     (5)  issue rights or warrants to all holders of class A common stock of
          Cox entitling them to subscribe for or purchase shares of class A
          common stock of Cox at a price per share less than the then current
          market price of the class A common stock of Cox, other than rights
          to purchase class A common stock of Cox pursuant to a plan for the
          reinvestment of dividends or interest; or

     (6)  pay a dividend or make a distribution to all holders of class A
          common stock of Cox of evidences of its indebtedness or other
          assets, excluding any stock dividends or distributions referred to
          in clause (1) above or any cash dividends other than any
          Extraordinary Cash Dividend (as defined below), or issue to all
          holders of class A common stock of Cox rights or warrants to
          subscribe for or purchase any of its securities (other than those
          referred to in clause (5) above). Any of the foregoing are referred
          to in this prospectus as the "Distributed Assets". The effect of the
          foregoing is that there will not be any adjustments to the Payment
          Rate Formula for the issuance by Cox of options, warrants, stock
          purchase rights or securities in connection with Cox's employee
          benefit plans.

     In the case of the events referred to in clauses (1), (2), (3) and (4)
above, the Payment Rate Formula shall be adjusted so that each holder of any
STRYPES shall thereafter be entitled to receive, upon payment and discharge or
redemption of the STRYPES, the number of shares of class A common stock of Cox
which a holder would have owned or been entitled to receive immediately
following any event in clauses (1), (2), (3) and (4) had the STRYPES been paid
and discharged or redeemed immediately before the event or any record date
with respect to the event.

     In the case of the event referred to in clause (5) above, the Payment
Rate Formula shall be adjusted by multiplying each of the Share Components in
the Payment Rate Formula in effect immediately before the date of issuance of
the rights or warrants referred to in clause (5) above by a fraction, the
numerator of which shall be the number of shares of class A common stock of
Cox outstanding on the date of issuance of the rights or warrants, immediately
before the issuance, plus the number of additional shares of class A common
stock of Cox offered for subscription or purchase pursuant to the rights or
warrants, and the denominator of which shall be the number of shares of class
A common stock of Cox outstanding on the date of issuance of the rights or
warrants, immediately before the issuance, plus the number of additional
shares of class A common stock of Cox which the aggregate offering price of
the total number of shares of class A common stock of Cox so offered for
subscription or purchase pursuant to the rights or warrants would purchase at
the current market price, determined as the average Closing Price per share of
class A common stock of Cox on the 20 Trading Days immediately before the date
the rights or warrants are issued, subject to certain adjustments, which shall
be determined by multiplying the total number of shares by the exercise price
of the rights or warrants and dividing the product so obtained by the current
market price. To the extent that shares of class A common stock of Cox are not
delivered after the expiration of the rights or warrants, or if the rights or
warrants are not issued, the Payment Rate Formula shall be readjusted to the
Payment Rate Formula which would then be in effect had the adjustments for the
issuance of the rights or warrants been made upon the basis of delivery of
only the number of shares of class A common stock of Cox actually delivered.

     In the case of the event referred to in clause (6) above, the Payment
Rate Formula shall be adjusted by multiplying each of the Share Components in
the Payment Rate Formula in effect on the record date by a fraction, (A) the
numerator of which shall be the market price per share of the class A common
stock of Cox, which shall be the average Closing Price per share of class A
common stock of Cox on the 20 Trading Days immediately before such record
date, subject to certain adjustments, on the record date for the determination
of stockholders entitled to receive the dividend or distribution referred to
in clause (6) above, and (B) the denominator of which shall be the market
price per share of class A common stock of Cox less the fair market value, as
determined by the Board of Directors of ML&Co., whose determination shall be
conclusive, and described in a resolution adopted with respect thereto, as of
the record date of the portion of the Distributed Assets so distributed
applicable to one share of class A common stock of Cox; provided, however,
that in the event that the then fair market value of the portion of the
Distributed Assets so distributed applicable to one share of class A common
stock of Cox is equal to or greater than the market price per share of class A
common stock of Cox as of the record date, in lieu of the foregoing
adjustment, ML&Co. shall reserve the Distributed Assets or, in the case of
Distributed Assets of a kind described in (c) below, an amount in cash equal
to the fair market value thereof, determined in the manner and as of the date
described in clause (c) below, for delivery to the holders of the STRYPES on
the maturity date and, on the maturity date, shall deliver to each holder, in
addition to the shares of class A common stock of Cox or cash in lieu thereof
to which the holder is otherwise entitled,

     (a)  in respect of that portion, if any, of the Distributed Assets
          consisting of cash, the amount of the Distributed Assets consisting
          of cash which the holder would have received had each STRYPES held
          by the holder been paid and discharged immediately before the record
          date for the determination of stockholders entitled to receive the
          dividend or distribution or the rights or warrants, without
          interest, plus

     (b)  in respect of that portion, if any, of the Distributed Assets
          consisting of securities for which there is an actual or when issued
          trading market ("marketable securities"), the amount of the
          Distributed Assets consisting of marketable securities which the
          holder would have received had each STRYPES held by the holder been
          paid and discharged immediately before the record date for the
          determination of stockholders entitled to receive the dividend or
          distribution or the rights or warrants, plus

     (c)  in respect of that portion, if any, of the Distributed Assets which
          are of a kind other than that described in clause (a) or (b) above,
          an amount in cash equal to the fair market value, as determined by
          the Board of Directors of ML&Co., whose determination shall be
          conclusive, and described in a resolution adopted with respect
          thereto, as of the record date for determination of stockholders
          entitled to receive the dividend or distribution or the rights or
          warrants, of the Distributed Assets consisting of other assets which
          the holder would have received had each STRYPES held by the holder
          been paid and discharged immediately before the record date, without
          interest thereon.

     An "Extraordinary Cash Dividend" means, with respect to any consecutive
12-month period, all cash dividends on the class A common stock of Cox during
the period to the extent the dividends exceed on a per share basis 10% of the
average Closing Price of the class A common stock of Cox over the period, less
any dividends for which a prior adjustment to the Payment Rate Formula was
previously made. All adjustments to the Payment Rate Formula will be
calculated to the nearest 1/10,000th of a share of class A common stock of Cox
or, if there is not a nearest 1/10,000th of a share, to the next lower
1/10,000th of a share. No adjustment in the Payment Rate Formula shall be
required unless the adjustment would require an increase or decrease of at
least one percent therein; provided, however, that any adjustments which by
reason of the foregoing are not required to be made shall be carried forward
and taken into account in any subsequent adjustment. If an adjustment is made
to the Payment Rate Formula as described above, an adjustment will also be
made to the Maturity Price solely to determine which of clauses (a), (b) or
(c) of the Payment Rate Formula will apply on the maturity date. The required
adjustment to the Maturity Price will be made by multiplying each of the
Closing Prices used in determining the Maturity Price by a fraction, the
numerator of which shall be the Share Component in clause (c) of the Payment
Rate Formula immediately after the adjustment described above, and the
denominator of which shall be the Share Component in clause (c) of the Payment
Rate Formula immediately before the adjustment described above. Each the
adjustment to the Payment Rate Formula shall be made successively.

     In the event of a "Reorganization Event", which is

     (A)  any consolidation or merger of Cox, or any surviving entity or
          subsequent surviving entity of Cox (a "Cox Successor"), with or into
          another entity (other than a merger or consolidation in which Cox is
          the continuing corporation and in which the class A common stock of
          Cox outstanding immediately before the merger or consolidation is
          not exchanged for cash, securities or other property of Cox or
          another corporation),

     (B)  any sale, transfer, lease or conveyance to another corporation of
          the property of Cox or any Cox Successor as an entirety or
          substantially as an entirety,

     (C)  any statutory exchange of securities of Cox or any Cox Successor
          with another corporation, other than in connection with a merger or
          acquisition, or

     (D)  any liquidation, dissolution, winding up or bankruptcy of Cox or any
          Cox Successor,

the Payment Rate Formula used to determine the amount payable on the maturity
date for each STRYPES will be adjusted to provide that each holder of STRYPES
will receive on the maturity date for each STRYPES cash in an amount equal to
(a) if the Transaction Value (as defined below) is greater than or equal to
the Threshold Appreciation Price, .8196 multiplied by the Transaction Value,
(b) if the Transaction Value is less than the Threshold Appreciation Price but
greater than the Initial Price, the Initial Price and (c) if the Transaction
Value is less than or equal to the Initial Price, the Transaction Value.

     "Transaction Value" means

     (1)  for any cash received in any Reorganization Event, the amount of
          cash received per share of class A common stock of Cox,

     (2)  for any property other than cash or securities received in any
          Reorganization Event, an amount equal to the market value on the
          maturity date of the property received per share of class A common
          stock of Cox as determined by a nationally recognized independent
          investment banking firm retained for this purpose by ML&Co. and

     (3)  for any securities received in any Reorganization Event, an amount
          equal to the average Closing Price per unit of the securities on the
          20 Trading Days immediately before the second Trading Day preceding
          the maturity date multiplied by the number of the securities
          received for each share of class A common stock of Cox.

     Notwithstanding the foregoing, in the event that property or securities,
or a combination of cash, on the one hand, and property or securities, on the
other, are received in a Reorganization Event, ML&Co. may, in lieu of
delivering cash as described above, deliver the amount of cash, securities and
other property received per share of class A common stock of Cox in the
Reorganization Event determined in accordance with clause (1), (2) or (3)
above, as applicable. If ML&Co. elects to deliver securities or other
property, holders of the STRYPES will be responsible for the payment of any
and all brokerage and other transaction costs upon any subsequent sale of the
securities or other property. The kind and amount of securities with which the
STRYPES shall be paid and discharged after consummation of the transaction
shall be subject to adjustment as described above following the date of
consummation of the transaction.

     No adjustments will be made for other events, such as the offerings of
class A common stock of Cox by Cox for cash or in connection with
acquisitions. Likewise, no adjustments will be made for any sales of class A
common stock of Cox by CEI.

     ML&Co. is required, within ten Business Days following the occurrence of
an event that requires an adjustment to the Payment Rate Formula, or, if
ML&Co. is not aware of the occurrence of an event, as soon as practicable
after becoming so aware, to provide written notice to the trustee and to the
holders of the STRYPES of the occurrence of the event and a statement in
reasonable detail setting forth the adjusted Payment Rate Formula and the
method by which the adjustment to the Payment Rate Formula was determined;
provided that, in respect of any adjustment to the Maturity Price, the notice
will only disclose the factor by which each of the Closing Prices used in
determining the Maturity Price is to be multiplied in order to determine the
Payment Rate on the maturity date. Until the maturity date, the Payment Rate
itself cannot be determined.

Fractional Shares

     No fractional shares of class A common stock of Cox will be delivered if
ML&Co. pays and discharges the STRYPES by delivering shares of class A common
stock of Cox. In lieu of any fractional share otherwise deliverable in respect
of all STRYPES of any holder on the maturity date, the holder shall be
entitled to receive an amount in cash equal to the value of the fractional
share at the Maturity Price.

Special Redemption Upon Tax Event

     The STRYPES will be redeemable at the option of ML&Co., in whole but not
in part, at any time from and after the date (the "Tax Event Date") on which a
Tax Event (as defined below) shall occur at a price per STRYPES (the "Tax
Event Redemption Price") equal to (a) an amount of cash equal to the sum of
(1) all accrued and unpaid interest on the STRYPES to the date fixed for
redemption (the "Redemption Date"), (2) the sum of all interest payments on
the STRYPES due after the Redemption Date and on or before the maturity date
and (3) $1.37, which is equal to the interest payable on such STRYPES for one
year, plus (b) a number of shares of class A common stock of Cox determined in
accordance with the Payment Rate Formula. The Redemption Date will be deemed
to be the maturity date for purposes of calculating the Maturity Price.

     A "Tax Event" means that CEI shall have delivered to ML&Co. an opinion
(the "Tax Event Opinion") from independent tax counsel experienced in such
matters to the effect that, as a result of

     (a)  any amendment or proposed amendment to, or change, including any
          announced prospective change or proposed change in the laws or any
          regulations thereunder, of the United States or any taxing authority
          thereof or therein or

     (b)  any amendment to, or change in, an interpretation or application of
          such laws or regulations by any legislative body, court,
          governmental agency or regulatory authority, enacted, promulgated,
          introduced, issued or announced or which interpretation is issued or
          announced or which action is taken, on or after the date of this
          Prospectus Supplement,

there is more than an insubstantial risk that a corporation that sells or
otherwise disposes of stock in another corporation on a date that is after the
date of this Prospectus Supplement and that is on or before the maturity date
would not be permitted to specifically identify the stock sold or disposed of
for purposes of determining the amount of such corporation's gain or loss on
the stock sold or disposed of for United States Federal income tax purposes.

     On March 19, 1996, the U.S. Treasury Department proposed a series of tax
law changes as part of President Clinton's 1997 Budget proposal. These
proposed tax law changes would, among other things, require taxpayers,
including corporations, that sell or otherwise dispose of securities, which
includes stock in a corporation, that are substantially identical to
securities which they continue to hold to determine their tax basis in the
substantially identical securities using the average basis of all of their
holdings in the securities. The proposed tax law changes also would prevent
the taxpayers from specifically identifying the securities sold or disposed of
for purposes of determining the amount of their gain or loss on the securities
sold or disposed of for United States Federal income tax purposes. As
originally proposed, this "average cost basis" rule would apply to
determinations, such as tax basis determinations made at the time of sale or
disposition, made more than 30 days after the date on the which the proposal
is enacted. Thus, if this "average cost basis" rule is ultimately adopted in
its current form on a date that is 31 or more days before the maturity date,
the enactment could result in a Tax Event. Furthermore, if there are future
legislative developments which would result in more than an insubstantial risk
that this "average cost basis" rule or a provision with similar effect will be
adopted and effective for determinations made on or before the maturity date,
the legislative developments could result in a Tax Event. ML&Co. cannot
predict whether or not these proposed tax law changes will ultimately become
law or whether or not any other future change or proposed change in the tax
law will occur which could give rise to a Tax Event. Moreover, ML&Co. cannot
predict whether CEI will elect to cause a Tax Event by delivering the Tax
Event Opinion to ML&Co. in the event that a change or proposed change in the
tax law occurs which could give rise to a Tax Event.

     ML&Co. will provide notice of any call for redemption of STRYPES to
holders of record of the STRYPES not less than 10 nor more than 30 calendar
days before the related Redemption Date. The notice will state the following
and may contain other information as ML&Co. deems advisable: (a) the
Redemption Date; (b) the place or places where certificates for the STRYPES
are to be surrendered for redemption; and (c) that interest will cease to
accrue on the STRYPES on the Redemption Date, except as otherwise provided in
the 1983 indenture. The notice will be provided by mail, sent to each holder
of record of STRYPES at the holder's address as it appears on the security
register for the STRYPES, first class postage prepaid; provided, however, that
failure to give notice or any defect therein shall not affect the validity of
the proceeding for redemption of any STRYPES except as to the holder to whom
ML&Co. has failed to give said notice or whose notice was defective. At or
before the mailing of the notice of redemption, ML&Co. will publish a public
announcement of redemption in The Wall Street Journal or another daily
newspaper of national circulation.

     ML&Co. will not be required to deliver any fractional share of class A
common stock of Cox on the Redemption Date. ML&Co. will instead pay an amount
in cash equal to the value of the fractional share of class A common stock of
Cox based on the average Closing Price per share of class A common stock of
Cox on the 20 Trading Days immediately before, but not including, the second
Trading Day before the Redemption Date.

     On and after the Redemption Date, all rights of a holder of STRYPES will
terminate except the right to receive for each STRYPES so redeemed the Tax
Event Redemption Price, unless there is a default on the payment of the Tax
Event Redemption Price.

No Sinking Fund

     The STRYPES do not contain sinking fund or other mandatory redemption
provisions. The STRYPES are not subject to payment before the maturity date at
the option of the holder.

Ranking

     The STRYPES will be unsecured obligations and will rank pari passu with
all other unsecured and unsubordinated indebtedness of ML&Co.

     There are no contractual restrictions on the ability of ML&Co. or its
subsidiaries to incur additional secured or unsecured debt. However,
borrowings by certain subsidiaries, including MLPF&S, are restricted by net
capital requirements under the Exchange Act and under rules of exchanges and
other regulatory bodies.

Securities Depository

     Description of the Global Securities

     The STRYPES are represented by one or more fully registered global
securities. Each global security has been deposited with, or on behalf of, The
Depository Trust Company or DTC (DTC, together with any successor thereto,
being a "depositary"), as depositary, registered in the name of Cede & Co.
(DTC's partnership nominee). Unless and until it is exchanged in whole or in
part for STRYPES in definitive form, no global security may be transferred
except as a whole by the depositary to a nominee of the depositary or by a
nominee of the depositary to the depositary or another nominee of the
depositary or by the depositary or any nominee to a successor of the
depositary or a nominee of that successor.

     So long as DTC, or its nominee, is a registered owner of a global
security, DTC or its nominee, as the case may be, will be considered the sole
owner or holder of the STRYPES represented by a global security for all
purposes under the 1983 indenture. Except as provided below, the beneficial
owners of the STRYPES represented by a global security are not entitled to
have the STRYPES represented by the global security registered in their names,
will not receive or be entitled to receive physical delivery of the STRYPES in
definitive form and are not considered the owners or holders under the 1983
indenture, including for purposes of receiving any reports delivered by ML&Co.
or the trustee pursuant to the 1983 indenture. Accordingly, each person owning
a beneficial interest in a global security must rely on the procedures of DTC
and, if the person is not a participant of DTC on the procedures of the
participant through which the person owns its interest, to exercise any rights
of a holder under the 1983 indenture. ML&Co. understands that under existing
industry practices, in the event that ML&Co. requests any action of holders or
that an owner of a beneficial interest in a global security desires to give or
take any action which a holder is entitled to give or take under the 1983
indenture, DTC would authorize the participants holding the relevant
beneficial interests to give or take action, and such participants would
authorize beneficial owners owning through such participants to give or take
such action or would otherwise act upon the instructions of beneficial owners.
Conveyance of notices and other communications by DTC to participants, by
participants to indirect participants and by participants and indirect
participants to beneficial owners are governed by arrangements among them,
subject to any statutory or regulatory requirements as may be in effect from
time to time.

     DTC Procedures

     The following is based on information furnished by DTC:

     DTC is the securities depositary for the STRYPES. The STRYPES have been
issued as fully registered securities registered in the name of Cede & Co.
(DTC's partnership nominee). One or more fully registered global securities
have been issued for the STRYPES in the aggregate principal amount of such
issue, and has been deposited with DTC.

     DTC is a limited-purpose trust company organized under the New York
Banking Law, a "banking organization" within the meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing corporation"
within the meaning of the New York Uniform Commercial Code, and a "clearing
agency" registered pursuant to the provisions of Section 17A of the 1934 Act.
DTC holds securities that its participants deposit with DTC. DTC also
facilitates the settlement among participants of securities transactions, such
as transfers and pledges, in deposited securities through electronic
computerized book-entry changes in participants' accounts, thereby eliminating
the need for physical movement of securities certificates. Direct participants
of DTC include securities brokers and dealers, banks, trust companies,
clearing corporations and certain other organizations. DTC is owned by a
number of its direct participants and by the NYSE, the AMEX and the National
Association of Securities Dealers, Inc. Access to the DTC's system is also
available to others such as securities brokers and dealers, banks and trust
companies that clear through or maintain a custodial relationship with a
direct participant, either directly or indirectly. The rules applicable to DTC
and its participants are on file with the SEC.

     Purchases of STRYPES under DTC's system must be made by or through direct
participants, which will receive a credit for the STRYPES on DTC's records.
The ownership interest of each beneficial owner is in turn to be recorded on
the records of direct and indirect participants. Beneficial owners will not
receive written confirmation from DTC of their purchase, but beneficial owners
are expected to receive written confirmations providing details of the
transaction, as well as periodic statements of their holdings, from the direct
participants or indirect participants through which such beneficial owner
entered into the transaction. Transfers of ownership interests in the STRYPES
are to be accomplished by entries made on the books of participants acting on
behalf of beneficial owners.

     To facilitate subsequent transfers, all STRYPES deposited with DTC are
registered in the name of DTC's partnership nominee, Cede & Co. The deposit of
STRYPES with DTC and their registration in the name of Cede & Co. effect no
change in beneficial ownership. DTC has no knowledge of the actual beneficial
owners of the STRYPES; DTC's records reflect only the identity of the direct
participants to whose accounts such STRYPES are credited, which may or may not
be the beneficial owners. The participants are responsible for keeping account
of their holdings on behalf of their customers.

     Conveyance of notices and other communications by DTC to direct
participants, by direct participants to indirect participants, and by direct
and indirect participants to beneficial owners are governed by arrangements
among them, subject to any statutory or regulatory requirements as may be in
effect from time to time.

     Neither DTC nor Cede & Co. will consent or vote with respect to the
STRYPES. Under its usual procedures, DTC mails an omnibus proxy to ML&Co. as
soon as possible after the applicable record date. The omnibus proxy assigns
Cede & Co.'s consenting or voting rights to those direct participants
identified in a listing attached to the omnibus proxy to whose accounts the
STRYPES are credited on the record date.

     Principal, premium, if any, and/or interest, if any, payments on the
STRYPES will be made in immediately available funds to DTC. DTC's practice is
to credit direct participants' accounts on the applicable payment date in
accordance with their respective holdings shown on the depositary's records
unless DTC has reason to believe that it will not receive payment on such
date. Payments by participants to beneficial owners will be governed by
standing instructions and customary practices, as is the case with securities
held for the accounts of customers in bearer form or registered in "street
name", and will be the responsibility of such participant and not of DTC, the
trustee or ML&Co., subject to any statutory or regulatory requirements as may
be in effect from time to time. Payment of principal, premium, if any, and/or
interest, if any, to DTC is the responsibility of ML&Co. or the trustee,
disbursement of such payments to direct participants is the responsibility of
DTC, and disbursement of such payments to the beneficial owners is the
responsibility of direct and indirect participants.

     Exchange for Certificated Securities

     If:

     (a)  the depositary is at any time unwilling or unable to continue as
          depositary and a successor depositary is not appointed by ML&Co.
          within 60 days,

     (b)  ML&Co. executes and delivers to the trustee a company order to the
          effect that the global securities shall be exchangeable, and

     (c)  an Event of Default under the 1983 indenture has occurred and is
          continuing with respect to the STRYPES,

the global securities will be exchangeable for STRYPES in definitive form of
like tenor and of an equal aggregate principal amount. The definitive STRYPES
will be registered in such name or names as the depositary shall instruct the
trustee. It is expected that such instructions may be based upon directions
received by the depositary from participants with respect to ownership of
beneficial interests in the global securities.

     In addition, ML&Co. may decide to discontinue use of the system of
book-entry transfers through the depositary. In that event, STRYPES in
definitive form will be printed and delivered.

     The information in this section concerning DTC and DTC's system has been
obtained from sources that ML&Co. believes to be reliable, but ML&Co. takes no
responsibility for its accuracy.

Governing Law

     The 1983 indenture and the STRYPES will be governed by, and construed in
accordance with, the laws of the State of New York.

Listing

     The STRYPES have been listed on the NYSE under the symbol CML.


                                  OTHER TERMS

     ML&Co. issued the STRYPES as a series of senior debt securities under the
1983 indenture, dated as of April 1, 1983, as amended and restated, between
ML&Co. and The Chase Manhattan Bank, as trustee. A copy of the 1983 indenture
is filed as an exhibit to the registration statement relating to the STRYPES
of which this prospectus is a part. The following summaries of the material
provisions of the 1983 indenture are not complete and are subject to, and
qualified in their entirety by reference to, all provisions of the 1983
indenture, including the definitions of terms in the 1983 indenture.

     ML&Co. may issue series of senior debt securities from time to time under
the 1983 indenture, without limitation as to aggregate principal amount, in
one or more series and upon terms as ML&Co. may establish under the provisions
of the 1983 indenture.

     The 1983 indenture and the STRYPES are governed by and construed in
accordance with the laws of the State of New York.

     ML&Co. may issue senior debt securities with terms different from those
of senior debt securities previously issued, and issue additional senior debt
securities of a previously issued series of senior debt securities.

     The senior debt securities are unsecured and rank equally with all other
unsecured and unsubordinated indebtedness of ML&Co. However, because ML&Co. is
a holding company, the rights of ML&Co. and its creditors, including the
holders of senior debt securities, to participate in any distribution of the
assets of any subsidiary upon its liquidation or reorganization or otherwise
are necessarily subject to the prior claims of creditors of the subsidiary,
except to the extent that a bankruptcy court may recognize claims of ML&Co.
itself as a creditor of the subsidiary. In addition, dividends, loans and
advances from certain subsidiaries, including MLPF&S, to ML&Co. are restricted
by net capital requirements under the Exchange Act, and under rules of
exchanges and other regulatory bodies.

Limitations Upon Liens

     ML&Co. may not, and may not permit any majority-owned subsidiary to,
create, assume, incur or permit to exist any indebtedness for borrowed money
secured by a pledge, lien or other encumbrance, other than those liens
specifically permitted by the 1983 indenture, on the Voting Stock owned
directly or indirectly by ML&Co. of any majority-owned subsidiary, other than
a majority-owned subsidiary which, at the time of the incurrence of the
secured indebtedness, has a net worth of less than $3,000,000, unless the
outstanding senior debt securities are secured equally and ratably with the
secured indebtedness.

     "Voting Stock" is defined in the 1983 Indenture as the stock of the class
or classes having general voting power under ordinary circumstances to elect
at least a majority of the board of directors, managers or trustees of a
corporation provided that, for the purposes of the 1983 Indenture, stock that
carries only the right to vote conditionally on the occurrence of an event is
not considered voting stock whether or not the event has happened.

Limitation on Disposition of Voting Stock of, and Merger and Sale of Assets by,
MLPF&S

     ML&Co. may not sell, transfer or otherwise dispose of any Voting Stock of
MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of its
Voting Stock, unless, after giving effect to any such transaction, MLPF&S
remains a Controlled Subsidiary.

     "Controlled Subsidiary" is defined in the 1983 indenture to mean a
corporation more than 80% of the outstanding shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

     In addition, ML&Co. may not permit MLPF&S to:

     o    merge or consolidate, unless the surviving company is a Controlled
          Subsidiary, or

     o    convey or transfer its properties and assets substantially as an
          entirety, except to one or more Controlled Subsidiaries.

Merger and Consolidation

     ML&Co. may consolidate or merge with or into any other corporation and
ML&Co. may sell, lease or convey all or substantially all of its assets to any
corporation, provided that:

     o    the resulting corporation, if other than ML&Co., is a corporation
          organized and existing under the laws of the United States of
          America or any U.S. state and assumes all of ML&Co.'s obligations
          to:

          o    pay any amounts due and payable or deliverable with respect to
               all the Senior Debt Securities; and

          o    perform and observe all of ML&Co.'s obligations under the 1983
               indenture, and

     o    ML&Co. or the successor corporation, as the case may be, is not,
          immediately after any consolidation or merger, in default under the
          1983 indenture.

Modification and Waiver

     ML&Co. and the trustee may modify and amend the 1983 indenture with the
consent of holders of at least 66 2/3% in principal amount of each outstanding
series of debt securities affected. However, without the consent of each
holder of any outstanding debt security affected, no amendment or modification
to any indenture may:

     o    change the stated maturity date of the principal of, or any
          installment of interest or Additional Amounts payable on, any senior
          debt security or any premium payable on redemption, or change the
          redemption price;

     o    reduce the principal amount of, or the interest or Additional
          Amounts payable on, any senior debt security or reduce the amount of
          principal which could be declared due and payable before the stated
          maturity date;

     o    change the place or currency of any payment of principal or any
          premium, interest or Additional Amounts payable on any senior debt
          security;

     o    impair the right to institute suit for the enforcement of any
          payment on or with respect to any senior debt security;

     o    reduce the percentage in principal amount of the outstanding senior
          debt securities of any series, the consent of whose holders is
          required to modify or amend the 1983 indenture; or

     o    modify the foregoing requirements or reduce the percentage of
          outstanding senior debt securities necessary to waive any past
          default to less than a majority.

     No modification or amendment of ML&Co.'s Subordinated Indenture or any
Subsequent Indenture for subordinated debt securities may adversely affect the
rights of any holder of ML&Co.'s senior indebtedness without the consent of
each holder affected. The holders of at least a majority in principal amount
of outstanding senior debt securities of any series may, with respect to that
series, waive past defaults under the 1983 indenture and waive compliance by
ML&Co. with provisions in the 1983 indenture, except as described under
"--Events of Default".

Events of Default

     Each of the following will be Events of Default with respect to senior
debt securities of any series:

     o    default in the payment of any interest or Additional Amounts payable
          when due and continuing for 30 days;

     o    default in the payment of any principal or premium when due;

     o    default in the deposit of any sinking fund payment, when due;

     o    default in the performance of any other obligation of ML&Co.
          contained in the 1983 indenture for the benefit of that series or in
          the senior debt securities of that series, continuing for 60 days
          after written notice as provided in the 1983 indenture;

     o    specified events in bankruptcy, insolvency or reorganization of
          ML&Co.; and

     o    any other Event of Default provided with respect to senior debt
          securities of that series which are not inconsistent with the 1983
          indenture.

     If an Event of Default occurs and is continuing for any series of senior
debt securities, other than as a result of the bankruptcy, insolvency or
reorganization of ML&Co., the trustee or the holders of at least 25% in
principal amount of the outstanding senior debt securities of that series may
declare all amounts, or any lesser amount provided for in the senior debt
securities, due and payable or deliverable immediately. At any time after a
declaration of acceleration has been made with respect to senior debt
securities of any series but before the trustee has obtained a judgment or
decree for payment of money, the holders of a majority in principal amount of
the outstanding senior debt securities of that series may rescind any
declaration of acceleration and its consequences, if all payments due, other
than those due as a result of acceleration, have been made and all Events of
Default have been remedied or waived.

     The holders of a majority in principal amount or aggregate issue price of
the outstanding debt securities of that series may waive any Event of Default
with respect to that series, except a default:

     o    in the payment of any amounts due and payable or deliverable under
          the debt securities of that series; or

     o    in respect of an obligation or provision of any indenture which
          cannot be modified under the terms of that indenture without the
          consent of each holder of each series of debt securities affected.

     The holders of a majority in principal amount of the outstanding senior
debt securities of a series may direct the time, method and place of
conducting any proceeding for any remedy available to the trustee or
exercising any trust or power conferred on the trustee with respect to those
senior debt securities, provided that any direction shall not be in conflict
with any rule of law or the 1983 indenture. Before proceeding to exercise any
right or power under the 1983 indenture at the direction of the holders, the
trustee shall be entitled to receive from the holders reasonable security or
indemnification against the costs, expenses and liabilities which might be
incurred by it in complying with any direction.

     The STRYPES and other series of senior debt securities issued under the
1983 indenture do not have the benefit of any cross-default provisions with
other indebtedness of ML&Co.

     ML&Co. is required to furnish to the trustee annually a statement as to
the fulfillment by ML&Co. of all of its obligations under the 1983 indenture.


                         CERTAIN ARRANGEMENTS WITH CEI

     Pursuant to an agreement (the "STRYPES Agreement"), CEI is obligated to
deliver to Merrill Lynch Capital Services, Inc., a wholly-owned subsidiary of
ML&Co. (the "ML&Co. Subsidiary"), immediately before the maturity date a
number of shares of class A common stock of Cox equal to the number required
by ML&Co. to pay and discharge all of the STRYPES. In lieu of delivering
shares of class A common stock of Cox immediately before the maturity date,
CEI has the right to satisfy its obligation under the STRYPES Agreement by
delivering cash in an amount equal to the value of the number of shares of
class A common stock of Cox at the Maturity Price. The right to deliver cash,
if exercised by CEI, must be exercised with respect to all shares of class A
common stock of Cox then deliverable pursuant to the STRYPES Agreement. Under
the STRYPES Agreement, ML&Co. has agreed to pay and discharge the STRYPES by
delivering to the holders thereof on the maturity date the form of
consideration that the ML&Co. Subsidiary receives from CEI. CEI also has the
option, exercisable on or after a Tax Event Date, to satisfy and discharge its
obligations under the STRYPES Agreement by delivering to the ML&Co.
Subsidiary, on a date fixed by CEI for early settlement, cash and shares of
class A common stock of Cox in an amount and number, respectively, equal to
the amount and number required by ML&Co. to redeem all of the STRYPES. Under
the STRYPES Agreement, ML&Co. has agreed to redeem all of the STRYPES in the
event that CEI exercises the option. The consideration paid by the ML&Co.
Subsidiary under the STRYPES Agreement is $188,572,500 in the aggregate, and
was paid to CEI on May 29, 1996. No other consideration is payable by the
ML&Co. Subsidiary to CEI in connection with its acquisition of the class A
common stock of Cox or the performance of the STRYPES Agreement by CEI. ML&Co.
has agreed with CEI that, without the prior consent of CEI, it will not amend
the 1983 indenture to increase the consideration that CEI is obligated to
deliver pursuant to the STRYPES Agreement.

     Until the time, if any, as CEI shall have delivered shares of class A
common stock of Cox to the ML&Co. Subsidiary under the terms of the STRYPES
Agreement, CEI will retain all ownership rights with respect to the class A
common stock of Cox held by it. The ownership rights include, among others,
voting rights and rights to receive any dividends or other distributions.

     CEI has no obligations with respect to the STRYPES or amounts to be paid
to holders thereof, including any obligation to take the needs of ML&Co. or
holders of the STRYPES into consideration in determining whether to deliver
shares of class A common stock of Cox or cash or for any other reason. The
STRYPES Agreement between the ML&Co. Subsidiary and CEI is a commercial
transaction and does not create any rights in, or for the benefit of, any
third party, including any holder of STRYPES.

     In the event CEI does not perform under the STRYPES Agreement, ML&Co.
will be required to otherwise acquire shares of class A common stock of Cox
for delivery to holders of the STRYPES on the maturity date or upon
redemption, unless, in the case of shares deliverable on the maturity date, it
elects to exercise its option to deliver cash with an equal value.
    


                      WHERE YOU CAN FIND MORE INFORMATION

   
     We file reports, proxy statements and other information with the SEC. Our
SEC filings are also available over the Internet at the SEC's web site at
http://www.sec.gov. You may also read and copy any document we file by
visiting the SEC's public reference rooms in Washington, D.C., New York, New
York, and Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further
information about the public reference rooms . You may also inspect our SEC
reports and other information at the New York Stock Exchange, Inc., 20 Broad
Street, New York, New York 10005.

     We have filed a registration statement on Form S-3 with the SEC covering
the STRYPES and other securities. For further information on ML&Co. and the
STRYPES, you should refer to our registration statement and its exhibits. This
prospectus summarizes material provisions of contracts and other documents
that we refer you to. Because the prospectus may not contain all the
information that you may find important, you should review the full text of
these documents. We have included copies of these documents as exhibits to our
registration statement of which this prospectus is a part.
    


               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

   
     The SEC allows us to incorporate by reference the information we file
with them, which means:
    

     o    incorporated documents are considered part of the prospectus;

     o    we can disclose important information to you by referring you to
          those documents; and

     o    information that we file with the SEC will automatically update and
          supersede this incorporated information.

   
     We incorporate by reference the documents listed below which were filed
with the SEC under the Exchange Act :

     o    annual report on Form 10-K for the year ended December 25, 1998; and

     o    current reports on Form 8-K dated December 28, 1998, January 19,
          1999, February 17, 1999, February 18, 1999, February 22, 1999,
          February 23, 1999 and March 26, 1999.

     We also incorporate by reference each of the following documents that we
will file with the SEC after the date of this prospectus until this offering
is completed or after the date of this initial registration statement and
before the effectiveness of the registration statement:

     o    reports filed under Sections 13(a) and (c) of the Exchange Act;

     o    definitive proxy or information statements filed under Section 14 of
          the Exchange Act in connection with any subsequent stockholders'
          meeting; and

     o    any reports filed under Section 15(d) of the Exchange Act.

     You should rely only on information contained or incorporated by
reference in this prospectus. We have not, and MLPF&S has not, authorized any
other person to provide you with different information. If anyone provides you
with different or inconsistent information, you should not rely on it. We are
not, and MLPF&S is not, making an offer to sell these securities in any
jurisdiction where the offer or sale is not permitted.

     You should assume that the information appearing in this prospectus is
accurate as of the date of this prospectus only. Our business, financial
condition and results of operations may have changed since that date.

     You may request a copy of any filings referred to above (excluding
exhibits), at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan, Jr., Corporate Secretary's Office, Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.


                             PLAN OF DISTRIBUTION

     This prospectus has been prepared in connection with secondary sales of
the STRYPES and is to be used by MLPF&S when making offers and sales related
to market-making transactions in the STRYPES.

     MLPF&S may act as principal or agent in these market-making transactions.

     The STRYPES may be offered on the NYSE or off the exchange in negotiated
transactions or otherwise.

     The distribution of the STRYPES will conform to the requirements set
forth in the applicable sections of Rule 2720 of the Conduct Rules of the
NASD.
    


                                    EXPERTS

   
     The consolidated financial statements and the related financial statement
schedule incorporated in this prospectus by reference from the Annual Report
on Form 10-K of Merrill Lynch & Co., Inc. and subsidiaries 
have been audited by Deloitte & Touche LLP, independent auditors, as stated in
their reports (which express an unqualified opinion and which report on the
consolidated financial statements includes an explanatory paragraph 
for the change in accounting method for certain internal-use software
development costs), which are incorporated herein by reference, and have been
so incorporated in reliance upon the reports of such firm given upon their
authority as experts in accounting and auditing.
    

<PAGE>
   
The information in this prospectus is not complete and may be changed. We may
not sell these securities until the registration statement filed with the
Securities and Exchange Commission is effective. This prospectus is not an
offer to sell these securities and it is not soliciting an offer to buy these
securities in any state where the offer or sale is not permitted.
    



                             Subject to Completion
   
                  Preliminary Prospectus dated March 29, 1999
    
P R O S P E C T U S
                           Merrill Lynch & Co., Inc.
   
            7-1/4% STRUCTURED YIELD PRODUCT EXCHANGEABLE FOR STOCKSM
    
                               Due June 15, 1999
   
                                 "STRYPES SM"
    
            Payable with Shares of Common Stock of SunAmerica Inc.
   
                          or cash with an equal value
    
                           ------------------------
   
     Merrill Lynch & Co., Merrill Lynch, Pierce, Fenner & Smith Incorporated,
our wholly-owned subsidiary, will use this prospectus when making offers and
sales related to market-making transactions in the STRYPES.

     The issue price of each STRYPES was $56.375, which was the last sale
price of the common stock, par value $1.00 per share, of SunAmerica on June 6,
1996, as reported on the New York Stock Exchange. The STRYPES will mature on
June 15, 1999.

                  What you will receive before June 15, 1999:
    

o    On each March 15, June 15, September 15 and December 15, beginning
     September 15, 1996, we will pay you interest on the STRYPES in cash at
     the rate of 7 1/4% per year.

   
o    We may redeem the STRYPES at any time before June 15, 1999, in whole or
     in part. We will pay a redemption price either in (i) shares of common
     stock of SunAmerica or (ii) if we choose to pay in cash, an equivalent
     amount in cash. In addition, we will pay an amount in cash equal to
     accrued and unpaid interest on the STRYPES to but excluding the
     redemption date. If we choose to pay in cash, we must pay cash with
     respect to all of the STRYPES we redeem on any redemption date.

                    What you will receive on June 15, 1999:

o    For each STRYPES you own, you will receive one share of common stock of
     SunAmerica, which may be adjusted for the events described in this
     prospectus. If we choose to pay cash instead of shares of common stock of
     SunAmerica, you will receive cash equal to the current market price of
     the common stock of SunAmerica.

Investing in the STRYPES involves risks, including the risk that your investment
         may result in a loss. See "Risk Factors" beginning on page 3.

     The STRYPES are listed on the New York Stock Exchange under the symbol
"SAI".
    

     Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if
this prospectus is truthful or complete. Any representation to the contrary is
a criminal offense.

   
     The sale price of the STRYPES will be the prevailing price at the time of
sale.
    

                          ---------------------------

                              Merrill Lynch & Co.
                          ---------------------------

   
                    The date of this prospectus is , 1999.

"STRYPES" and "Structured Yield Product Exchangeable for Stock" are registered
service marks owned by ML&Co.
    

<PAGE>

   
                               TABLE OF CONTENTS

RISK FACTORS..............................................................3

MERRILL LYNCH & CO., INC..................................................8

RATIO OF EARNINGS TO FIXED CHARGES........................................9

SUNAMERICA INC...........................................................10

DESCRIPTION OF THE STRYPES...............................................10

OTHER TERMS..............................................................18

CERTAIN ARRANGEMENTS WITH THE SELLING STOCKHOLDER........................21

WHERE YOU CAN FIND MORE INFORMATION......................................22

INCORPORATION OF INFORMATION WE FILE WITH THE SEC........................22

PLAN OF DISTRIBUTION.....................................................24

EXPERTS..................................................................24
    

<PAGE>

   
                                 RISK FACTORS

     Your investment in the STRYPES will involve risks. You should carefully
consider the following discussion of risks before deciding whether an
investment in the STRYPES is suitable for you.

You may suffer a loss on your investment

     You should be aware that at maturity the amount you will receive may be
less than the amount you paid for the STRYPES because the price of the common
stock of SunAmerica is subject to market fluctuations. If you receive less
than the amount you paid, your investment in the STRYPES will result in a loss
to you. When you invest in the STRYPES, you assume the risk that the market
value of the common stock of SunAmerica may decline, and that the decline
could be substantial.

The date or dates we calculate the current market price of the common stock of
SunAmerica may affect the amount  you  receive on the  maturity  date or the
redemption date

     The notice date for the maturity date or the redemption date will occur
at least 30 and up to 60 days before the maturity date or the redemption date,
as the case may be. If we (1) elect to pay the STRYPES in cash at maturity or
(2) elect to redeem the STRYPES and to pay the redemption price by delivering
shares of common stock of SunAmerica, we will determine the amount of cash or
the number of shares based on the current market price as of the second
trading day before the notice date. Because the price of the common stock of
SunAmerica is subject to market fluctuations, the amount of cash we deliver on
the maturity date for each STRYPES may be more or less than the market value
on the maturity date of the common stock of SunAmerica which you would
otherwise have been entitled to receive. In addition, the market value on a
redemption date of shares of common stock of SunAmerica we may deliver may be
more or less than the redemption price.

     The current market price we will use too determine the amount of cash
which we may pay at maturity or the number of shares of common stock of
SunAmerica which we may deliver upon redemption of the STRYPES will generally
be equal to the average of the daily closing prices of the common stock of
SunAmerica for the five consecutive trading days ending on and including the
date of determination. However, if the closing price on the trading day
following the five-day period is less than 95% of the five-day average closing
price, then the current market price on the date of determination will be the
closing price on the trading day following the five-day period. Because the
price of the common stock of SunAmerica is subject to market fluctuations, it
is possible that the closing price on the trading day following the five-day
period could be significantly less than the five-day average. Please review
the section "Description of the STRYPES--Certain Definitions".

There may be a limited opportunity for capital appreciation 

     Your opportunity for equity appreciation may be greater if you made a
direct investment in the common stock of SunAmerica because the price of the
common stock of SunAmerica is subject to market fluctuations and because we
may redeem the STRYPES at any time before the maturity date at the redemption
prices described in this prospectus. Although we are not obligated to redeem
the STRYPES before the maturity date, we expect to redeem the STRYPES if the
market price of the common stock of SunAmerica exceeds the redemption price.
Therefore, you will receive less than one share of common stock of SunAmerica
for each STRYPES or cash equal to the current market price of less than one
share of common stock of SunAmerica). Please review "Description of the
STRYPES--Optional Redemption".

     If we elect to redeem the STRYPES, the capital appreciation, except for
the accrued interest that you may realize on an investment in the STRYPES,
will be limited to any excess of (1) the value of the common stock of
SunAmerica or the amount of cash you receive as the redemption price, which
declines from $86.568 and to $76.106, over (2) the price you paid for the
STRYPES.

There are many factors affecting the trading prices of the STRYPES

     The trading prices of the STRYPES in the secondary market will be
directly affected by the trading prices of the common stock of SunAmerica in
the secondary market. It is impossible to predict whether the price of the
common stock of SunAmerica will rise or fall because several factors may
influence the trading prices of the common stock of SunAmerica. These factors
include:

     o    SunAmerica's operating results and prospects,

     o    complex and interrelated political, economic, financial and other
          factors and market conditions that can affect (1) the capital
          markets generally, (2) the market segment of which SunAmerica is a
          part, or (3) the NYSE, on which the common stock of SunAmerica is
          traded, including the level of, and fluctuations in, the trading
          prices of stocks generally and sales of substantial amounts of the
          common stock of SunAmerica in the market subsequent to the offering
          of the STRYPES or the perception that these sales could occur, and

     o    other events that are difficult to predict and are beyond our
          control.

Investing in the STRYPES may affect the market for the common stock of
SunAmerica

     Any market that develops for the STRYPES is likely to influence and be
influenced by the market for the common stock of SunAmerica. For example, the
price of common stock of SunAmerica could become more volatile and could be
depressed

     o    by investors' anticipation of the potential distribution into the
          market of substantial amounts of common stock of SunAmerica on the
          maturity date or upon redemption,

     o    by possible sales of common stock of SunAmerica by investors who
          view the STRYPES as a more attractive means of equity participation
          in SunAmerica, and

     o    by hedging or arbitrage trading activity that may develop involving
          the STRYPES and the common stock of SunAmerica.

     In addition, Mr. Eli Broad, who is the selling Stockholder, is not
precluded from selling common stock of SunAmerica. Any of these activities
could adversely affect the market price of the common stock of SunAmerica and
the STRYPES.

There may be illiquidity of the STRYPES in the secondary market

     It is not possible to predict how the STRYPES will trade in the secondary
market or whether the secondary market for the STRYPES will be liquid or
illiquid. The STRYPES are novel securities and there is currently no secondary
market for the STRYPES. Although the STRYPES are listed on the NYSE under the
symbol "SAI", you cannot assume

     o    that an active trading market for the STRYPES will develop,

     o    that listing on the NYSE will provide you with liquidity of
          investment,

     o    that the STRYPES will not later be delisted or

     o    that trading of the STRYPES on the NYSE will not be suspended.

     If the NYSE delists the STRYPES or suspends the trading of the STRYPES,
we will apply for listing of the STRYPES on another national securities
exchange or for quotation on another trading market. If the STRYPES are not
listed or traded on any securities exchange or trading market, or if trading
of the STRYPES is suspended, pricing information for the STRYPES may be more
difficult to obtain and the liquidity of the STRYPES may be adversely
affected.

As a holder of  STRYPES, you have no stockholder's rights with respect to the
common stock of SunAmerica

     You will not be entitled to any rights, including voting rights and
rights to receive any dividends or other distributions for the common stock of
SunAmerica, until we have delivered the shares of common stock of SunAmerica
on the maturity date or the redemption date. In addition, you will not be
entitled to any rights if the applicable record date for the exercise of any
rights occurs before the maturity date or the redemption date. For example, if
an amendment is proposed to the certificate of incorporation of SunAmerica and
the record date for determining the stockholders of record entitled to vote on
the amendment occurs before we deliver the common stock of SunAmerica, you, as
a holder of the STRYPES, will not be entitled to vote on the proposed
amendment.

The selling stockholder has no obligations with respect to the STRYPES

     We are not affiliated with the selling stockholder. The selling
stockholder has no obligations with respect to the STRYPES or amounts to be
paid to you, including any obligation to take our needs or yours, as a holder
of the STRYPES, into consideration for any reason.

SunAmerica has no obligations with respect to the STRYPES

     We are not affiliated with SunAmerica. SunAmerica has no obligations with
respect to the STRYPES or amounts to be paid to you, including any obligation
to take our needs or yours, as a holder of the STRYPES, into consideration for
any reason. SunAmerica will not receive any of the proceeds of this offering
of the STRYPES. SunAmerica is not responsible for, and has not participated
in, the determination of the timing of, prices for or quantities of the
STRYPES to be issued, or the determination or calculation of the amount you
may receive on the maturity date or the redemption date. In addition,
SunAmerica is not involved with the administration or trading of the STRYPES.

There may be a dilution of common stock of SunAmerica

     The number of shares of common stock of SunAmerica or the equivalent
amount of cash that you are entitled to receive on the maturity date or the
redemption date is subject to adjustment for events such as:

     o    a merger or consolidation in which SunAmerica is not the surviving
          or resulting corporation,

     o    a sale or transfer of all or substantially all of the assets of
          SunAmerica,

     o    the liquidation, dissolution, winding up or bankruptcy of
          SunAmerica,

     o    stock splits and combinations, stock dividends, and

     o    other actions of SunAmerica that modify its capital structure.

Please  review the  section  entitled  "Description  of the  STRYPES--Dilution
Adjustments".

     The number of shares of common stock of SunAmerica or the equivalent
amount of cash that you may receive on the maturity date or redemption date
will not be adjusted for other events, such as offerings of common stock of
SunAmerica for cash or in connection with acquisitions. SunAmerica is not
restricted from issuing additional shares of common stock during the term of
the STRYPES and has no obligation to consider the interests of the holders of
the STRYPES for any reason. Additional issuances may materially and adversely
affect the price of the common stock of SunAmerica.

The tax treatment of STRYPES is uncertain

     Because of an absence of authority as to the proper characterization of
the STRYPES, their ultimate tax treatment is uncertain. Accordingly, you
cannot assume that any particular characterization and treatment of the
STRYPES will be accepted by the Internal Revenue Service or upheld by a court.
However, it is the opinion of Brown & Wood LLP, counsel to ML&Co., that the
characterization and tax treatment of the STRYPES described in this
prospectus, while not the only reasonable characterization and tax treatment,
is based on reasonable interpretations of law currently in effect and, even if
successfully challenged by the IRS, will not result in the imposition of
penalties. Under the 1983 indenture, if you are subject to United States
Federal income tax, you are required to include currently in income, for
United States Federal income tax purposes, payments denominated as interest
that are made with respect to a STRYPES in accordance with your regular method
of tax accounting. In addition, ML&Co. and you, as a holder of the STRYPES are
required to treat each STRYPES for tax purposes as a unit consisting of

     o    a debt instrument with a fixed principal amount unconditionally
          payable on the maturity date equal to the issue price of the STRYPES
          and bearing interest at the stated interest rate on the STRYPES and

     o    a forward purchase contract pursuant to which you agree to use the
          principal payment due on the debt instrument or, in the event of
          redemption on or before the maturity date, the redemption price to
          purchase on the maturity date or upon redemption on or before the
          maturity date the common stock of SunAmerica which ML&Co. is
          obligated under the STRYPES to deliver at that time, subject to
          ML&Co.'s right to deliver cash in lieu of the common stock of
          SunAmerica.

     The 1983 indenture also requires that upon the acquisition of a STRYPES
and upon your sale or other disposition of a STRYPES before the maturity date
or redemption of the STRYPES, the amount paid or realized be allocated by you
between the debt instrument and the forward purchase contract based upon their
relative fair market values, as determined on the date of acquisition or
disposition. For these purposes, with respect to acquisitions of STRYPES in
connection with the original issuance of the STRYPES, ML&Co. and you agree,
pursuant to the terms of the 1983 indenture, to assign $57.277 or 101.6% of
the initial purchase price of a STRYPES to the debt instrument component and
to assign $.902 or 1.6% of the initial purchase price of a STRYPES to the
forward purchase contract component.

     The appropriate character and timing of income, gain or loss to be
recognized on a STRYPES is uncertain. You should consult your own tax adviser
concerning the application of the United States Federal income tax laws to
your particular situation and any consequences of the purchase, ownership and
disposition of the STRYPES arising under the laws of any other taxing
jurisdiction.

Our holding company structure may affect your right to participate in any
distribution of assets of any subsidiary

     Since we are a holding company, our right and the right of our creditors,
including you, as a holder of STRYPES, to participate in any distribution of
the assets of any subsidiary upon its liquidation or reorganization or
otherwise is necessarily subject to the prior claims of creditors of the
subsidiary, except to the extent a bankruptcy court may recognize our claims
as a creditor of the subsidiary. In addition, dividends, loans and advances
from certain subsidiaries, including MLPF&S, to us are restricted by net
capital requirements under the Exchange Act and under rules of exchanges and
other regulatory bodies.

Other Considerations

     We suggest that you reach an investment decision only after carefully
considering the suitability of the STRYPES in the light of your particular
circumstances.
    

<PAGE>

   
                           MERRILL LYNCH & CO., INC.

     We are a holding company that, through our U.S. and non-U.S. subsidiaries
and affiliates such as Merrill Lynch, Pierce, Fenner & Smith Incorporated,
Merrill Lynch Government Securities Inc., Merrill Lynch Capital Services,
Inc., Merrill Lynch International, Merrill Lynch Capital Markets Bank Ltd.,
Merrill Lynch Asset Management L.P. and Merrill Lynch Mercury Asset
Management, provides investment, financing, advisory, insurance, and related
products on a global basis, including:

     o    securities brokerage, trading and underwriting;

     o    investment banking, strategic services, including mergers and
          acquisitions and other corporate finance advisory activities;

     o    asset management and other investment advisory and recordkeeping
          services;

     o    trading and brokerage of swaps, options, forwards, futures and other
          derivatives;

     o    securities clearance services;

     o    equity, debt and economic research;

     o    banking, trust and lending services, including mortgage lending and
          related services; and

     o    insurance sales and underwriting services.

     We provide these products and services to a wide array of clients,
including individual investors, small businesses, corporations, governments,
governmental agencies and financial institutions.

     Our principal executive office is located at World Financial Center,
North Tower, 250 Vesey Street, New York, New York 10281; our telephone number
is (212) 449-1000.

     If you want to find more information about us, please see the sections
entitled "Where You Can Find More Information" and "Incorporation of
Information We File with the SEC" in this prospectus.

     In this prospectus, "ML&Co.", "we", "us" and "our" refer specifically to
Merrill Lynch & Co., Inc., the holding company. ML&Co. is the issuer of the
STRYPES described in this prospectus.
    

<PAGE>

   
                      RATIO OF EARNINGS TO FIXED CHARGES

     In 1998, we acquired the outstanding shares of Midland Walwyn, Inc., in a
transaction accounted for as a pooling-of-interests. The following information
for the fiscal years 1994 through 1997 has been restated as if the two
entities had always been combined.

     The following table sets forth our historical ratios of earnings to fixed
charges for the periods indicated:



                                        Year Ended Last Friday in December
                                        1994     1995     1996     1997     1998
                                        ----------------------------------------
Ratio of earnings to fixed charges(a)   1.2      1.2      1.2      1.2      1.1
- ----------
(a)   The effect of combining Midland Walwyn did not change the ratios reported
      for the fiscal years 1994 through 1997.

     For the purpose of calculating the ratio of earnings to fixed charges,
"earnings" consist of earnings from continuing operations before income taxes
and fixed charges, excluding capitalized interest and preferred security
dividend requirements. "Fixed charges" consist of interest costs, the interest
factor in rentals, amortization of debt issuance costs, preferred security
dividend requirements of subsidiaries, and capitalized interest.
    

<PAGE>

   
                                SUNAMERICA INC.

     SunAmerica is a diversified financial services company specializing in
retirement savings products and services.

     SunAmerica is subject to the informational requirements of the Exchange
Act. Accordingly, SunAmerica files reports, proxy and information statements
and other information with the SEC. Copies of such material can be inspected
and copied at the public reference facilities maintained by the SEC at the
addresses specified under "Where You Can Find More Information". Reports,
proxy and information statements and other information concerning SunAmerica
may also be inspected at the offices of the NYSE.

     ML&Co. is not affiliated with SunAmerica, and SunAmerica has no
obligations with respect to the STRYPES. This prospectus relates only to the
STRYPES offered hereby and does not relate to the common stock of SunAmerica.
SunAmerica has filed a registration statement on Form S-3 with the SEC
covering the shares of common stock of SunAmerica common stock that may be
received by a holder of STRYPES on the maturity date or upon redemption. The
prospectus of SunAmerica constituting a part of the registration statement
includes information relating to SunAmerica and the common stock of
SunAmerica. The prospectus of SunAmerica does not constitute a part of this
prospectus, nor is it incorporated by reference in this prospectus.


                          DESCRIPTION OF THE STRYPES

     ML&Co. issued the STRYPES as a series of senior debt securities under the
1983 indenture, which is more fully described in this prospectus. The
following summary of material provisions of the 1983 indenture does not
purport to be complete and is qualified in its entirety by reference to the
1983 indenture. A copy of the 1983 indenture is filed as an exhibit to the
registration statement of which this prospectus is a part.

     Each STRYPES, which was issued at the issue price of $56.375, bears
interest at the rate of 71/4% of the issue price per annum or $4.0872 per
annum from June 12, 1996, or from the most recent Interest Payment Date to
which interest has been paid or provided for, until the maturity date or the
earlier date on which the STRYPES is redeemed or the issue price of the
STRYPES is repaid pursuant to the terms of the STRYPES. Interest on the
STRYPES will be payable in cash quarterly in arrears on March 15, June 15,
September 15 and December 15, beginning September 15, 1996, and on the
maturity date (each, an "Interest Payment Date"), to the persons in whose
names the STRYPES are registered at the close of business on the last day,
whether or not a Business Day, of the calendar month immediately preceding the
Interest Payment Date. Interest on the STRYPES will be computed on the basis
of a 360-day year of twelve 30-day months. If an Interest Payment Date,
maturity date or redemption date falls on a day that is not a Business Day,
the payments to be made, including any shares of common stock of SunAmerica to
be delivered, on the date will be made on the next succeeding Business Day
with the same force and effect as if made on the Interest Payment Date,
maturity date or redemption date, and no additional interest will accrue as a
result of the delayed payment.

Payments at Maturity 

     The STRYPES will mature on June 15, 1999. On the maturity date, unless
redeemed on or before the date, ML&Co. will pay and discharge each STRYPES by
delivering to the holder of the STRYPES a number of shares of common stock of
SunAmerica equal to the Common Equivalent Rate (as described below) in effect
on the maturity date, subject to ML&Co.'s right to deliver, with respect to
all, but not less than all, of the STRYPES then outstanding, cash in an amount
equal to the Current Market Price, determined as of the second Trading Day
before the applicable Notice Date, of the common stock of SunAmerica which
otherwise would have been delivered. The Common Equivalent Rate will initially
be one share of Common Stock per STRYPES. The Common Equivalent Rate is
subject to adjustment as described below under "--Dilution Adjustments."
Because the price of the common stock of SunAmerica is subject to market
fluctuations, the value of the common stock of SunAmerica or, at the option of
ML&Co., the amount of cash received by a holder of STRYPES on the maturity
date may be less than the amount paid for the STRYPES upon issuance, in which
case an investment in the STRYPES will result in a loss. In addition, because
of the market fluctuations and because the Current Market Price of the common
stock of SunAmerica will be determined as of the second Trading Date before
the applicable Notice Date, which will be at least 30 and could be up to 60
days before the maturity date, it is likely that, if ML&Co. elects to pay the
STRYPES in cash on the maturity date, the amount of cash payable per STRYPES
will differ from the market value on the maturity date of the shares of common
stock of SunAmerica which a holder would otherwise have received. See "Risk
Factors".

     In the 1983 indenture, ML&Co. will agree to deliver on the maturity date
the form of consideration that the ML&Co. Subsidiary receives from the selling
stockholder. ML&Co. will be required to mail a notice, at least 30 but not
more than 60 days before the maturity date, to each holder of STRYPES at its
registered address. The notice shall state whether the STRYPES will be paid
and discharged with shares of common stock of SunAmerica or in cash and, if
payable in cash, specifying the amount of cash payable for each STRYPES and
the Current Market Price used to calculate the amount. If ML&Co. elects to
deliver shares of common stock of SunAmerica, holders of the STRYPES will be
responsible for the payment of any and all brokerage costs upon the subsequent
sale of the stock.

Optional Redemption 

     At any time or from time to time on or before the maturity date, ML&Co.
may, at its option, redeem the outstanding STRYPES, in whole or in part, at a
redemption price per STRYPES initially equal to $86.568. The redemption price
will decline by $.00966 on each day following the Issue Date, computed on the
basis of a 360-day year of twelve 30-day months, to $76.686 on April 15, 1999,
and equal to $76.106 thereafter. The redemption price will be payable in
either (1) a number of shares of common stock of SunAmerica equal to the
redemption price on the applicable redemption date divided by the Current
Market Price of the common stock of SunAmerica determined as of the second
Trading Day preceding the applicable Notice Date or (2) at ML&Co.'s option,
which may be exercised with respect to all, but not less than all, of the
STRYPES to be redeemed on any redemption date, cash. In addition, the
redemption price will also include in either case an amount in cash equal to
accrued and unpaid interest on the STRYPES to but excluding the redemption
date; provided that installments of interest which are due and payable on or
before the redemption date shall be payable to the holders of STRYPES
registered as the at the close of business on the relevant record dates. On
and after the redemption date, interest will cease to accrue on the STRYPES
called for redemption, unless ML&Co. defaults in the payment of the redemption
price therefor. If ML&Co. elects to deliver shares of common stock of
SunAmerica, holders of the STRYPES will be responsible for the payment of any
and all brokerage costs upon the subsequent sale of the stock.

     Notice of redemption shall be mailed at least 30 days but not more than
60 days before the redemption date to each holder of STRYPES to be redeemed at
its registered address. The notice shall specify whether ML&Co. will pay the
redemption price by delivery of common stock of SunAmerica or in cash. If
ML&Co. will pay the redemption price in common stock of SunAmerica, the notice
will also specify the number of shares of common stock of SunAmerica to be
delivered for each STRYPES and the Current Market Price used to calculate the
number of shares. If only a portion of the STRYPES held by any registered
holder are to be redeemed, the notice of redemption shall specify the number
of STRYPES to be redeemed from the holder and, upon redemption, a new STRYPES
certificate evidencing the unredeemed STRYPES will be issued in the name of
the holder upon surrender for cancellation of the original certificate.

     In the event that less than all of the STRYPES are to be redeemed at any
time, selection of STRYPES for redemption will be made by the trustee by the
method as the trustee shall deem fair and appropriate, subject to compliance
with the requirements of the principal national securities exchange on which
the STRYPES may be listed; provided, however, that the STRYPES shall not be
redeemed except in units of one or more whole STRYPES.

     The opportunity for capital appreciation afforded by an investment in the
STRYPES is limited because ML&Co. may, at its option, redeem the STRYPES at
any time on or before the maturity date at the redemption prices described
above. Although not obligated to do so, ML&Co. may be expected to redeem the
STRYPES on or before the maturity date if the market price of the common stock
of SunAmerica exceeds the applicable redemption price, in which event holders
of STRYPES will receive less than one share of common stock of SunAmerica for
each STRYPES or, at the option of ML&Co., cash in an amount equal to the
Current Market Price of less than one share of the common stock of SunAmerica.
See "Risk Factors".

     If ML&Co. exercises its option to redeem the STRYPES, in whole or in
part, the Notice Date for the redemption will be at least 30 days and could be
up to 60 days before the redemption date. If, as described above, ML&Co.
elects to pay the redemption price by delivering shares of common stock of
SunAmerica, the number of shares to be so delivered will be determined on the
basis of the Current Market Price as of the second Trading Date before the
Notice Date. The price of the common stock of SunAmerica is subject to market
fluctuations and, as a result, the market value on the redemption date of the
shares of common stock of SunAmerica delivered in respect of each STRYPES may
be more or less than the applicable redemption price. See "Risk Factors".

Certain Definitions 

     The "Closing Price" of any security on any day shall mean (1) the closing
sales price regular way on the day or, in case no sale takes place on the day,
the average of the reported closing bid and asked prices regular way on that
day, in each case on the NYSE, or (2) if the security is not listed or
admitted to trading on the NYSE, on the principal national securities exchange
on which the security is listed or admitted to trading, or if not listed or
admitted to trading on any national securities exchange, the average of the
closing bid and asked prices of the security on the over-the-counter market on
the day in question as reported by the National Quotation Bureau Incorporated,
or a similarly generally accepted reporting service, or (3) if not so
available in the manner, as furnished by any NYSE member firm selected from
time to time by the Board of Directors of ML&Co. for that purpose.

     The "Current Market Price" per share of the common stock of SunAmerica on
any date of determination means the average of the daily Closing Prices for
the five consecutive Trading Days ending on and including the date of
determination, as appropriately adjusted to take into account the occurrence
during the five-day period of any event that results in an adjustment of the
Common Equivalent Rate; provided, however, that if the Closing Price of the
common stock of SunAmerica on the Trading Day next following the five-day
period (the "Next-Day Closing Price") is less than 95% of the five-day
average, then the Current Market Price per share of common stock of SunAmerica
on the date of determination will be the Next-Day Closing Price; and provided,
further, that, for the purposes of calculating the Current Market Price in
connection with the maturity date or any redemption of STRYPES or any
determination of an amount in cash payable in lieu of a fractional share of
common stock of SunAmerica, if any adjustment of the Common Equivalent Rate
becomes effective as of any date during the period beginning on the first day
of the five-day period and ending on the maturity date or the relevant
redemption date, as the case may be, then the Current Market Price as
determined pursuant to the foregoing will be appropriately adjusted to reflect
the adjustment. Because the price of common stock of SunAmerica is subject to
market fluctuations, it is possible that the Next-Day Closing Price could be
significantly less than the five-day average. See "Risk Factors".

     A "Notice Date" with respect to any notice given by ML&Co. in connection
with the maturity date or any redemption of STRYPES means the commencement of
the mailing of the notice to the holders of STRYPES in accordance with
"--Payments at Maturity" or "--Optional Redemption," as the case may be,
above.

     A "Trading Day" is defined as a day on which the security, the Closing
Price of which is being determined, (A) is not suspended from trading on any
national or regional securities exchange or association or over-the-counter
market at the close of business and (B) has traded at least once on the
national or regional securities exchange or association or over-the-counter
market that is the primary market for the trading of the security; provided
that, if the Closing Price of the security is to be determined by a NYSE
member firm, then the term Trading Day shall mean, for purposes of determining
the Closing Price, a day on which the NYSE is open for trading.

Dilution Adjustments 

     The Common Equivalent Rate will initially be one share of common stock of
SunAmerica for each STRYPES. The Common Equivalent Rate is subject to
adjustment if SunAmerica shall:

     (1)  pay a dividend or make a distribution with respect to common stock
          of SunAmerica in shares of common stock of SunAmerica;

     (2)  subdivide or split the outstanding shares of common stock of
          SunAmerica into a greater number of shares;

     (3)  combine the outstanding shares of common stock of SunAmerica into a
          smaller number of shares;

     (4)  issue by reclassification of shares of common stock of SunAmerica
          any shares of common stock of SunAmerica;

     (5)  issue certain rights or warrants to all holders of common stock of
          SunAmerica; or

     (6)  pay a dividend or make a distribution to all holders of common stock
          of SunAmerica of evidences of its indebtedness or other assets,
          including shares of capital stock of SunAmerica but excluding any
          cash dividends and any stock dividends or distributions referred to
          in clause (1) above.

     All adjustments to the Common Equivalent Rate will be calculated to the
nearest 1/100th of a share of common stock of SunAmerica or, if there is not a
nearest 1/100th of a share, to the next lower 1/100th of a share. No
adjustment in the Common Equivalent Rate shall be required unless the
adjustment would require an increase or decrease of at least one percent
therein; provided, however, that any adjustments which by reason of the
foregoing are not required to be made shall be carried forward and taken into
account in any subsequent adjustment. Each the adjustment to the Common
Equivalent Rate shall be made successively.

     In   the event of a "Reorganization Event", which is

     (A)  any consolidation or merger of SunAmerica, or any surviving entity
          or subsequent surviving entity of SunAmerica (a "SunAmerica
          Successor"), with or into another entity, other than a merger or
          consolidation in which SunAmerica is the continuing corporation and
          in which the common stock of SunAmerica outstanding immediately
          before the merger or consolidation is not exchanged for cash,
          securities or other property of SunAmerica or another corporation,

     (B)  any sale, transfer, lease or conveyance to another corporation of
          the property of SunAmerica or any SunAmerica Successor as an
          entirety or substantially as an entirety,

     (C)  any statutory exchange of securities of SunAmerica or any SunAmerica
          Successor with another corporation (other than in connection with a
          merger or acquisition) or

     (D)  any liquidation, dissolution, winding up or bankruptcy of SunAmerica
          or any SunAmerica Successor,

the Common  Equivalent  Rate will be adjusted  to provide  that each holder of
STRYPES will receive on the maturity  date or any  redemption date for each
STRYPES cash in an amount equal to the Transaction Value.

     "Transaction Value" means

     (1)  for any cash received in any the Reorganization Event, the amount of
          cash received per share of common stock of SunAmerica,

     (2)  for any property other than cash or securities received in any
          Reorganization Event, an amount equal to the market value on the
          maturity date or any redemption date of the property received per
          share of common stock of SunAmerica as determined by a nationally
          recognized independent investment banking firm retained for this
          purpose by ML&Co. and

     (3)  for any securities received in any Reorganization Event, an amount
          equal to the average Closing Price per unit of the securities on the
          five Trading Days immediately before the second Trading Day
          preceding the maturity date or any redemption date multiplied by the
          number of the securities received for each share of common stock of
          SunAmerica.

     Notwithstanding the foregoing, in the event that property or securities,
or a combination of cash, on the one hand, and property or securities, on the
other, are received in the Reorganization Event, ML&Co. may, at its option, in
lieu of delivering cash as described above, deliver the amount of cash,
securities and other property received per share of common stock of SunAmerica
in the Reorganization Event determined in accordance with clause (1), (2) or
(3) above, as applicable. If ML&Co. elects to deliver securities or other
property, holders of the STRYPES will be responsible for the payment of any
and all brokerage and other transaction costs upon any subsequent sale of the
securities or other property. The kind and amount of securities with which the
STRYPES shall be paid and discharged after consummation of the transaction
shall be subject to adjustment as described above following the date of
consummation of the transaction.

     No adjustments will be made for certain other events, such as offerings
of common stock of SunAmerica by SunAmerica for cash or in connection with
acquisitions. Likewise, no adjustments will be made for any sales of common
stock of SunAmerica by the selling stockholder.

     ML&Co. is required, within ten Business Days following the occurrence of
an event that requires an adjustment to the Common Equivalent Rate or, if
ML&Co. is not aware of the occurrence of an event, as soon as practicable
after becoming so aware, to provide written notice to the trustee and to the
holders of the STRYPES of the occurrence of the event and a statement in
reasonable detail setting forth the adjusted Common Equivalent Rate and the
method by which the adjustment to the Common Equivalent Rate was determined.

Certain Procedures in Connection with Maturity and Redemption 

     Each holder of STRYPES on the maturity date, and each holder of STRYPES
called for redemption on any redemption date, must surrender the certificates
evidencing the STRYPES at the office or agency of ML&Co. maintained for the
purpose in order to receive the consideration payable on the date. If, on the
maturity date or any redemption date, ML&Co. shall have deposited with the
trustee or other agent under the 1983 indenture the consideration payable on
the date in respect of all of the STRYPES then outstanding, in the case of the
maturity date, or the STRYPES called for redemption, in the case of any
redemption date, then, on the maturity date or redemption date, as the case
may be, all of the outstanding STRYPES or the STRYPES called for redemption,
as the case may be, shall cease to bear interest and all rights of the holders
thereof shall terminate, except for the right to receive the consideration
payable in respect of the STRYPES on the date, notwithstanding that the
certificates evidencing any of the STRYPES which are payable or subject to
redemption on the date shall not have been surrendered to ML&Co.

Fractional Shares 

     No fractional shares of common stock of SunAmerica will be delivered if
ML&Co. pays and discharges the STRYPES by delivering shares of common stock of
SunAmerica on the maturity date or any redemption date. In lieu of any
fractional share otherwise deliverable in respect of all STRYPES of any holder
on the maturity date or any redemption date, the holder shall be entitled to
receive an amount in cash equal to the value of the fractional share at the
Current Market Price of the common stock of SunAmerica determined as of the
second Trading Day immediately preceding the relevant Notice Date.

No Sinking Fund 

     The STRYPES do not contain sinking fund or other mandatory redemption
provisions. The STRYPES are not subject to payment before the maturity date at
the option of the holder.

Ranking 

     The STRYPES will be unsecured obligations and will rank equally with all
other unsecured and unsubordinated indebtedness of ML&Co.

     There are no contractual restrictions on the ability of ML&Co. or its
subsidiaries to incur additional secured or unsecured debt. However,
borrowings by certain subsidiaries, including MLPF&S, are restricted by net
capital requirements under the Exchange Act and under rules of exchanges and
other regulatory bodies.

Securities Depository

     Description of the Global Securities

     The STRYPES are represented by one or more fully registered global
securities. Each global security has been deposited with, or on behalf of, The
Depository Trust Company or DTC (DTC, together with any successor thereto,
being a "depositary"), as depositary, registered in the name of Cede & Co.
(DTC's partnership nominee). Unless and until it is exchanged in whole or in
part for STRYPES in definitive form, no global security may be transferred
except as a whole by the depositary to a nominee of the depositary or by a
nominee of the depositary to the depositary or another nominee of the
depositary or by the depositary or any nominee to a successor of the
depositary or a nominee of that successor.

     So long as DTC, or its nominee, is a registered owner of a global
security, DTC or its nominee, as the case may be, will be considered the sole
owner or holder of the STRYPES represented by a global security for all
purposes under the 1983 indenture. Except as provided below, the beneficial
owners of the STRYPES represented by a global security are not entitled to
have the STRYPES represented by the global security registered in their names,
will not receive or be entitled to receive physical delivery of the STRYPES in
definitive form and are not considered the owners or holders under the 1983
indenture, including for purposes of receiving any reports delivered by ML&Co.
or the trustee pursuant to the 1983 indenture. Accordingly, each person owning
a beneficial interest in a global security must rely on the procedures of DTC
and, if the person is not a participant of DTC on the procedures of the
participant through which the person owns its interest, to exercise any rights
of a holder under the 1983 indenture. ML&Co. understands that under existing
industry practices, in the event that ML&Co. requests any action of holders or
that an owner of a beneficial interest in a global security desires to give or
take any action which a holder is entitled to give or take under the 1983
indenture, DTC would authorize the participants holding the relevant
beneficial interests to give or take action, and such participants would
authorize beneficial owners owning through such participants to give or take
such action or would otherwise act upon the instructions of beneficial owners.
Conveyance of notices and other communications by DTC to participants, by
participants to indirect participants and by participants and indirect
participants to beneficial owners are governed by arrangements among them,
subject to any statutory or regulatory requirements as may be in effect from
time to time.

     DTC Procedures

     The following is based on information furnished by DTC:

     DTC is the securities depositary for the STRYPES. The STRYPES have been
issued as fully registered securities registered in the name of Cede & Co.
(DTC's partnership nominee). One or more fully registered global securities
have been issued for the STRYPES in the aggregate principal amount of such
issue, and has been deposited with DTC.

     DTC is a limited-purpose trust company organized under the New York
Banking Law, a "banking organization" within the meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing corporation"
within the meaning of the New York Uniform Commercial Code, and a "clearing
agency" registered pursuant to the provisions of Section 17A of the 1934 Act.
DTC holds securities that its participants deposit with DTC. DTC also
facilitates the settlement among participants of securities transactions, such
as transfers and pledges, in deposited securities through electronic
computerized book-entry changes in participants' accounts, thereby eliminating
the need for physical movement of securities certificates. Direct participants
of DTC include securities brokers and dealers, banks, trust companies,
clearing corporations and certain other organizations. DTC is owned by a
number of its direct participants and by the NYSE, the AMEX and the National
Association of Securities Dealers, Inc. Access to the DTC's system is also
available to others such as securities brokers and dealers, banks and trust
companies that clear through or maintain a custodial relationship with a
direct participant, either directly or indirectly. The rules applicable to DTC
and its participants are on file with the SEC.

     Purchases of STRYPES under DTC's system must be made by or through direct
participants, which will receive a credit for the STRYPES on DTC's records.
The ownership interest of each beneficial owner is in turn to be recorded on
the records of direct and indirect participants. Beneficial owners will not
receive written confirmation from DTC of their purchase, but beneficial owners
are expected to receive written confirmations providing details of the
transaction, as well as periodic statements of their holdings, from the direct
participants or indirect participants through which such beneficial owner
entered into the transaction. Transfers of ownership interests in the STRYPES
are to be accomplished by entries made on the books of participants acting on
behalf of beneficial owners.

     To facilitate subsequent transfers, all STRYPES deposited with DTC are
registered in the name of DTC's partnership nominee, Cede & Co. The deposit of
STRYPES with DTC and their registration in the name of Cede & Co. effect no
change in beneficial ownership. DTC has no knowledge of the actual beneficial
owners of the STRYPES; DTC's records reflect only the identity of the direct
participants to whose accounts such STRYPES are credited, which may or may not
be the beneficial owners. The participants are responsible for keeping account
of their holdings on behalf of their customers.

     Conveyance of notices and other communications by DTC to direct
participants, by direct participants to indirect participants, and by direct
and indirect participants to beneficial owners are governed by arrangements
among them, subject to any statutory or regulatory requirements as may be in
effect from time to time.

     Neither DTC nor Cede & Co. will consent or vote with respect to the
STRYPES. Under its usual procedures, DTC mails an omnibus proxy to ML&Co. as
soon as possible after the applicable record date. The omnibus proxy assigns
Cede & Co.'s consenting or voting rights to those direct participants
identified in a listing attached to the omnibus proxy to whose accounts the
STRYPES are credited on the record date.

     Principal, premium, if any, and/or interest, if any, payments on the
STRYPES will be made in immediately available funds to DTC. DTC's practice is
to credit direct participants' accounts on the applicable payment date in
accordance with their respective holdings shown on the depositary's records
unless DTC has reason to believe that it will not receive payment on such
date. Payments by participants to beneficial owners will be governed by
standing instructions and customary practices, as is the case with securities
held for the accounts of customers in bearer form or registered in "street
name", and will be the responsibility of such participant and not of DTC, the
trustee or ML&Co., subject to any statutory or regulatory requirements as may
be in effect from time to time. Payment of principal, premium, if any, and/or
interest, if any, to DTC is the responsibility of ML&Co. or the trustee,
disbursement of such payments to direct participants is the responsibility of
DTC, and disbursement of such payments to the beneficial owners is the
responsibility of direct and indirect participants.

     Exchange for Certificated Securities

     If:

     (a)  the depositary is at any time unwilling or unable to continue as
          depositary and a successor depositary is not appointed by ML&Co.
          within 60 days,

     (b)  ML&Co. executes and delivers to the trustee a company order to the
          effect that the global securities shall be exchangeable, and

     (c)  an Event of Default under the 1983 indenture has occurred and is
          continuing with respect to the STRYPES,

the global securities will be exchangeable for STRYPES in definitive form of
like tenor and of an equal aggregate principal amount, in denominations of $10
and integral multiples of $10. The definitive STRYPES will be registered in
such name or names as the depositary shall instruct the trustee. It is
expected that such instructions may be based upon directions received by the
depositary from participants with respect to ownership of beneficial interests
in the global securities.

     In addition, ML&Co. may decide to discontinue use of the system of
book-entry transfers through the depositary. In that event, STRIPES in
definitive form will be printed and delivered.

     The information in this section concerning DTC and DTC's system has been
obtained from sources that ML&Co. believes to be reliable, but ML&Co. takes no
responsibility for its accuracy.

Governing Law 

     The 1983 indenture and the STRYPES are governed by, and construed in
accordance with, the laws of the State of New York.

Listing 

     The STRYPES have been listed on the NYSE under this symbol "SAI".


                                  OTHER TERMS

     ML&Co. issued the STRYPES as a series of senior debt securities under the
1983 indenture, dated as of April 1, 1983, as amended and restated, between
ML&Co. and The Chase Manhattan Bank, as trustee. A copy of the 1983 indenture
is filed as an exhibit to the registration statement relating to the STRYPES
of which this prospectus is a part. The following summaries of the material
provisions of the 1983 indenture are not complete and are subject to, and
qualified in their entirety by reference to, all provisions of the 1983
indenture, including the definitions of terms in the 1983 indenture.

     ML&Co. may issue series of senior debt securities from time to time under
the 1983 indenture, without limitation as to aggregate principal amount, in
one or more series and upon terms as ML&Co. may establish under the provisions
of the 1983 indenture.

     The 1983 indenture and the STRYPES are governed by and construed in
accordance with the laws of the State of New York.

     ML&Co. may issue senior debt securities with terms different from those
of senior debt securities previously issued, and issue additional senior debt
securities of a previously issued series of senior debt securities.

     The senior debt securities are unsecured and rank equally with all other
unsecured and unsubordinated indebtedness of ML&Co. However, because ML&Co. is
a holding company, the rights of ML&Co. and its creditors, including the
holders of senior debt securities, to participate in any distribution of the
assets of any subsidiary upon its liquidation or reorganization or otherwise
are necessarily subject to the prior claims of creditors of the subsidiary,
except to the extent that a bankruptcy court may recognize claims of ML&Co.
itself as a creditor of the subsidiary. In addition, dividends, loans and
advances from certain subsidiaries, including MLPF&S, to ML&Co. are restricted
by net capital requirements under the Exchange Act, and under rules of
exchanges and other regulatory bodies.

Limitations Upon Liens

     ML&Co. may not, and may not permit any majority-owned subsidiary to,
create, assume, incur or permit to exist any indebtedness for borrowed money
secured by a pledge, lien or other encumbrance, other than those liens
specifically permitted by the 1983 indenture, on the Voting Stock owned
directly or indirectly by ML&Co. of any majority-owned subsidiary, other than
a majority-owned subsidiary which, at the time of the incurrence of the
secured indebtedness, has a net worth of less than $3,000,000, unless the
outstanding senior debt securities are secured equally and ratably with the
secured indebtedness.

     "Voting Stock" is defined in the 1983 indenture as the stock of the class
or classes having general voting power under ordinary circumstances to elect
at least a majority of the board of directors, managers or trustees of a
corporation provided that, for the purposes of the 1983 indenture, stock that
carries only the right to vote conditionally on the occurrence of an event is
not considered voting stock whether or not the event has happened.

Limitation on Disposition of Voting Stock of, and Merger and Sale of Assets by,
MLPF&S

     ML&Co. may not sell, transfer or otherwise dispose of any Voting Stock of
MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of its
Voting Stock, unless, after giving effect to any such transaction, MLPF&S
remains a Controlled Subsidiary.

     "Controlled Subsidiary" is defined in the 1983 indenture to mean a
corporation more than 80% of the outstanding shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

     In addition, ML&Co. may not permit MLPF&S to:

     o    merge or consolidate, unless the surviving company is a Controlled
          Subsidiary, or

     o    convey or transfer its properties and assets substantially as an
          entirety, except to one or more Controlled Subsidiaries.

Merger and Consolidation

     ML&Co. may consolidate or merge with or into any other corporation and
ML&Co. may sell, lease or convey all or substantially all of its assets to any
corporation, provided that:

     o    the resulting corporation, if other than ML&Co., is a corporation
          organized and existing under the laws of the United States of
          America or any U.S. state and assumes all of ML&Co.'s obligations
          to:

          o    pay any amounts due and payable or deliverable with respect to
               all the Senior Debt Securities; and

          o    perform and observe all of ML&Co.'s obligations under the 1983
               indenture, and

     o    ML&Co. or the successor corporation, as the case may be, is not,
          immediately after any consolidation or merger, in default under the
          1983 indenture.

Modification and Waiver

     ML&Co. and the trustee may modify and amend the 1983 indenture with the
consent of holders of at least 66 2/3% in principal amount of each outstanding
series of debt securities affected. However, without the consent of each
holder of any outstanding debt security affected, no amendment or modification
to any indenture may:

     o    change the stated maturity date of the principal of, or any
          installment of interest or Additional Amounts payable on, any senior
          debt security or any premium payable on redemption, or change the
          redemption price;

     o    reduce the principal amount of, or the interest or Additional
          Amounts payable on, any senior debt security or reduce the amount of
          principal which could be declared due and payable before the stated
          maturity date;

     o    change the place or currency of any payment of principal or any
          premium, interest or Additional Amounts payable on any senior debt
          security;

     o    impair the right to institute suit for the enforcement of any
          payment on or with respect to any senior debt security;

     o    reduce the percentage in principal amount of the outstanding senior
          debt securities of any series, the consent of whose holders is
          required to modify or amend the 1983 indenture; or

     o    modify the foregoing requirements or reduce the percentage of
          outstanding senior debt securities necessary to waive any past
          default to less than a majority.

     No modification or amendment of ML&Co.'s Subordinated Indenture or any
Subsequent Indenture for subordinated debt securities may adversely affect the
rights of any holder of ML&Co.'s senior indebtedness without the consent of
each holder affected. The holders of at least a majority in principal amount
of outstanding senior debt securities of any series may, with respect to that
series, waive past defaults under the 1983 indenture and waive compliance by
ML&Co. with provisions in the 1983 indenture, except as described under
"--Events of Default".

Events of Default

     Each of the following will be Events of Default with respect to senior
debt securities of any series:

     o    default in the payment of any interest or Additional Amounts payable
          when due and continuing for 30 days;

     o    default in the payment of any principal or premium when due;

     o    default in the deposit of any sinking fund payment, when due;

     o    default in the performance of any other obligation of ML&Co.
          contained in the 1983 indenture for the benefit of that series or in
          the senior debt securities of that series, continuing for 60 days
          after written notice as provided in the 1983 indenture;

     o    specified events in bankruptcy, insolvency or reorganization of
          ML&Co.; and

     o    any other Event of Default provided with respect to senior debt
          securities of that series which are not inconsistent with the 1983
          indenture.

     If an Event of Default occurs and is continuing for any series of senior
debt securities, other than as a result of the bankruptcy, insolvency or
reorganization of ML&Co., the trustee or the holders of at least 25% in
principal amount of the outstanding senior debt securities of that series may
declare all amounts, or any lesser amount provided for in the senior debt
securities, due and payable or deliverable immediately. At any time after a
declaration of acceleration has been made with respect to senior debt
securities of any series but before the trustee has obtained a judgment or
decree for payment of money, the holders of a majority in principal amount of
the outstanding senior debt securities of that series may rescind any
declaration of acceleration and its consequences, if all payments due, other
than those due as a result of acceleration, have been made and all Events of
Default have been remedied or waived.

     The holders of a majority in principal amount or aggregate issue price of
the outstanding debt securities of that series may waive any Event of Default
with respect to that series, except a default:

     o    in the payment of any amounts due and payable or deliverable under
          the debt securities of that series; or

     o    in respect of an obligation or provision of any indenture which
          cannot be modified under the terms of that indenture without the
          consent of each holder of each series of debt securities affected.

     The holders of a majority in principal amount of the outstanding senior
debt securities of a series may direct the time, method and place of
conducting any proceeding for any remedy available to the trustee or
exercising any trust or power conferred on the trustee with respect to those
senior debt securities, provided that any direction shall not be in conflict
with any rule of law or the 1983 indenture. Before proceeding to exercise any
right or power under the 1983 indenture at the direction of the holders, the
trustee shall be entitled to receive from the holders reasonable security or
indemnification against the costs, expenses and liabilities which might be
incurred by it in complying with any direction.

     The STRYPES and other series of senior debt securities issued under the
1983 indenture do not have the benefit of any cross-default provisions with
other indebtedness of ML&Co.

     ML&Co. is required to furnish to the trustee annually a statement as to
the fulfillment by ML&Co. of all of its obligations under the 1983 indenture.


               CERTAIN ARRANGEMENTS WITH THE SELLING STOCKHOLDER

     Pursuant to an agreement (the "Stock Agreement"), the selling stockholder
is obligated to deliver to Merrill Lynch Capital Services, Inc., a wholly
owned subsidiary of ML&Co. (the "ML&Co. Subsidiary), on June 14, 1999, a
specified number of shares of SunAmerica Class B Stock, subject to the selling
stockholder's right to deliver cash in an amount equal to the Current Market
Price, which will be determined as of the second Trading Day before the
applicable Notice Date, of the common stock of SunAmerica underlying the
SunAmerica Class B Stock that otherwise would have been delivered. At any time
and from time to time through June 15, 1999, the selling stockholder may, at
his option, redeem his obligations under the Stock Agreement in whole or in
part, at declining redemption prices, payable in either (1) shares of
SunAmerica Class B Stock representing common stock of SunAmerica having an
aggregate Current Market Price, determined as of the second Trading Day before
the date of the applicable notice of redemption, equal to the applicable
redemption price or (2) at the selling stockholder's option, which may be
exercised with respect to all, but not less than all, of the obligations to be
redeemed, cash, plus in either case an amount in cash equal to accrued and
unpaid interest on the Stock Agreement to but excluding the redemption date.
The consideration paid by the ML&Co. Subsidiary to the selling stockholder
under the Stock Agreement is approximately $131 million, and was paid on June
12, 1996. In the 1983 indenture, ML&Co. has agreed to pay and discharge the
STRYPES by delivering to the holders thereof on the maturity date or any
redemption date the form of consideration that the ML&Co. Subsidiary receives
from the selling stockholder and to redeem the STRYPES if and when the selling
stockholder redeems his obligations under the Stock Agreement.

     Shares of SunAmerica Class B Stock delivered by the selling stockholder
will convert automatically into shares of common stock of SunAmerica upon
transfer to the ML&Co. Subsidiary. The selling stockholder has the right at
any time to modify the Stock Agreement so that he may deliver shares of common
stock of SunAmerica, or cash, instead of shares of SunAmerica Class B Stock,
or cash. Until such time, if any, as the selling stockholder shall have
delivered shares to the ML&Co. Subsidiary at maturity or upon redemption
pursuant to the terms of the Stock Agreement, the selling stockholder will
retain all ownership rights with respect to the shares held by him. The
ownership rights include, among others, voting rights and rights to receive
any dividends or other distributions in respect thereof.

     The selling stockholder has no obligations with respect to the STRYPES or
amounts to be paid to holders thereof including any obligation to take the
needs of ML&Co. or holders of the STRYPES into consideration in determining
whether or when to cause the redemption of the STRYPES or whether to deliver
shares or cash at maturity or upon redemption, or for any other reason. The
Stock Agreement is a commercial transaction among the parties thereto and does
not create any rights in or for the benefit of, any third party, including any
holder of STRYPES.

     In the event the selling stockholder does not perform under the Stock
Agreement, ML&Co. will be required to otherwise acquire shares of common stock
of SunAmerica for delivery to holders of the STRYPES on the maturity date or
upon redemption, unless it elects to exercise its option to deliver cash with
an equal value.

     Merrill Lynch Capital Corporation, a wholly owned subsidiary of ML&Co.,
entered into a secured loan agreement with the selling stockholder pursuant to
which the selling stockholder borrowed approximately $33 million for a term of
three years.
    


                      WHERE YOU CAN FIND MORE INFORMATION

   
     We file reports, proxy statements and other information with the SEC. Our
SEC filings are also available over the Internet at the SEC's web site at
http://www.sec.gov. You may also read and copy any document we file by
visiting the SEC's public reference rooms in Washington, D.C., New York, New
York, and Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further
information about the public reference rooms . You may also inspect our SEC
reports and other information at the New York Stock Exchange, Inc., 20 Broad
Street, New York, New York 10005.

     We have filed a registration statement on Form S-3 with the SEC covering
the STRYPES and other securities. For further information on ML&Co. and the
STRYPES, you should refer to our registration statement and its exhibits. This
prospectus summarizes material provisions of contracts and other documents
that we refer you to. Because the prospectus may not contain all the
information that you may find important, you should review the full text of
these documents. We have included copies of these documents as exhibits to our
registration statement of which this prospectus is a part.
    


               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

   
     The SEC allows us to incorporate by reference the information we file
with them, which means:
    

     o    incorporated documents are considered part of the prospectus;

     o    we can disclose important information to you by referring you to
          those documents; and

     o    information that we file with the SEC will automatically update and
          supersede this incorporated information.

   
     We incorporate by reference the documents listed below which were filed
with the SEC under the Exchange Act :

     o    annual report on Form 10-K for the year ended December 25, 1998; and

     o    current reports on Form 8-K dated December 28, 1998, January 19,
          1999, February 17, 1999, February 18, 1999, February 22, 1999,
          February 23, 1999 and March 26, 1999.

     We also incorporate by reference each of the following documents that we
will file with the SEC after the date of this prospectus until this offering
is completed or after the date of this initial registration statement and
before the effectiveness of the registration statement:

     o    reports filed under Sections 13(a) and (c) of the Exchange Act;

     o    definitive proxy or information statements filed under Section 14 of
          the Exchange Act in connection with any subsequent stockholders'
          meeting; and

     o    any reports filed under Section 15(d) of the Exchange Act.

     You should rely only on information contained or incorporated by
reference in this prospectus. We have not, and MLPF&S has not, authorized any
other person to provide you with different information. If anyone provides you
with different or inconsistent information, you should not rely on it. We are
not, and MLPF&S is not, making an offer to sell these securities in any
jurisdiction where the offer or sale is not permitted.

     You should assume that the information appearing in this prospectus is
accurate as of the date of this prospectus only. Our business, financial
condition and results of operations may have changed since that date.

     You may request a copy of any filings referred to above (excluding
exhibits), at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan, Jr., Corporate Secretary's Office, Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.
    

<PAGE>

   
                             PLAN OF DISTRIBUTION

     This prospectus has been prepared in connection with secondary sales of
the STRYPES and is to be used by MLPF&S when making offers and sales related
to market-making transactions in the STRYPES.

     MLPF&S may act as principal or agent in these market-making transactions.

     The STRYPES may be offered on the NYSE or off the exchange in negotiated
transactions or otherwise.

     The distribution of the STRYPES will conform to the requirements set
forth in the applicable sections of Rule 2720 of the Conduct Rules of the
NASD.
    


                                    EXPERTS

   
     The consolidated  financial  statements and the related financial statement
schedule  incorporated in this prospectus by reference from the Annual Report on
Form 10-K of Merrill  Lynch & Co.,  Inc. and  subsidiaries  have been audited by
Deloitte & Touche LLP, independent  auditors,  as stated in their reports (which
express an unqualified  opinion and which report on the  consolidated  financial
statements includes an explanatory paragraph for the change in accounting method
for certain  internal-use  software  development costs),  which are incorporated
herein by reference,  and have been so incorporated in reliance upon the reports
of such firm given upon their authority as experts in accounting and auditing.
    


<PAGE>
   
The information in this prospectus is not complete and may be changed. We may
not sell these securities until the registration statement filed with the
Securities and Exchange Commission is effective. This prospectus is not an
offer to sell these securities and it is not soliciting an offer to buy these
securities in any state where the offer or sale is not permitted.
    


                             Subject to Completion
   
                  Preliminary Prospectus dated March 29, 1999
    



P R O S P E C T U S

                           Merrill Lynch & Co., Inc.

   
  6-1/4% STRUCTURED YIELD PRODUCT EXCHANGEABLE FOR STOCK(SM) due July 1, 2001
                                 "STRYPES (SM)"
    
            Payable with Shares of Common Stock of IMC Global Inc.
   
                        or an equivalent amount in cash
    
                             --------------------

   
     Merrill Lynch & Co., Merrill Lynch, Pierce, Fenner & Smith Incorporated,
our wholly-owned subsidiary, will use this prospectus when making offers and
sales related to market-making transactions in the STRYPES.

     The issue price of each STRYPES was $38.25, which was the last sale price
of one share of common stock, par value $1.00 per share, of IMC on July 2,
1996, as reported on the New York Stock Exchange. The STRYPES will mature on
July 1, 2001.

                  What you will receive before July 1, 2001:
    

o    On each January 1, April 1, July 1 and October 1, beginning October 1,
     1996, we will pay you interest on the STRYPES in cash at the rate of 6
     1/4% per year.

   
o    We may not redeem the STRYPES at any time before July 1, 2001.

                    What you will receive on July 1, 2001:

o    For each STRYPES you own, you will receive a percentage of each type of
     reference property or an equivalent amount in cash. The reference
     property will initially be one share of common stock of IMC, which may be
     adjusted before July 1, 2001. The adjustments that may be made to the
     reference property are more fully described in this prospectus.

<TABLE>
<CAPTION>

     <S>                                              <C>

     If the value of the reference property is:       You will receive:
     (a)  greater  than or equal to $46.28            82.65%  of each type of reference
                                                      property
     (b)  less than $46.28 but greater than           a percentage of each type of reference
           $38.25                                     property equal to $38.25
     (c)   less than or equal to  $38.25              100% of each type of  reference property

</TABLE>



Investing in the STRYPES involves risks, including the risk that your investment
         may result in a loss. See "Risk Factors" beginning on page 3.

     The STRYPES are listed on the NYSE under the symbol "IGL".
    

     Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if
this prospectus is truthful or complete. Any representation to the contrary is
a criminal offense.

   
     The sale price of the STRYPES will be the prevailing price at the time of
sale.
    
                          ---------------------------

                              Merrill Lynch & Co.
                         ----------------------------

                    The date of this prospectus is , 199 .


   
"STRYPES" and "Structured Yield Product Exchangeable for Stock" are registered
service marks owned by ML&Co.
    

<PAGE>

                                TABLE CONTENTS

                                                                          PAGE
   
RISK FACTORS...............................................................4

MERRILL LYNCH & CO., INC...................................................8

RATIO OF EARNINGS TO FIXED CHARGES.........................................8

IMC GLOBAL INC............................................................10

DESCRIPTION OF THE STRYPES................................................10

OTHER TERMS...............................................................18

CERTAIN ARRANGEMENTS WITH GVI.............................................21
    

INCORPORATION OF INFORMATION WE FILE WITH THE SEC.........................22

   
PLAN OF DISTRIBUTION......................................................23

EXPERTS...................................................................23
    

<PAGE>

   
                                 RISK FACTORS

         Your  investment  in the  STRYPES  will  involve  risks.  You  should
carefully  consider the following  discussion of risks before deciding whether
an investment in the STRYPES is suitable for you.

You may suffer a loss on your investment

     You should be aware that at maturity the amount you will receive may be
less than the amount you paid for the STRYPES, which was $38.25 per STRYPES.
If the value of the reference property is less than $38.25, the amount you
will receive will be less than the amount you paid for the STRYPES and,
therefore, your investment in the STRYPES will result in a loss to you. When
you invest in the STRYPES, you assume the risk that the market value of the
reference property may decline, and that the decline could be substantial. You
should review the prospectus of IMC, which is attached to this prospectus. The
prospectus of IMC describes the shares of common stock of IMC, including the
preferred stock purchase rights associated with the shares, that you may
receive as a holder of the STRYPES on the maturity date.

Your investment in the STRYPES may differ from an investment in other debt
securities

     The terms of the STRYPES differ from those of ordinary debt securities
because the value of the reference property or the equivalent amount in cash
that you will receive on the maturity date is not fixed, but is based on the
value of the reference property. Please review the section entitled
"Description of the STRYPES".

There may be a limited opportunity for equity appreciation

     Your opportunity for equity appreciation may be greater if you made a
direct investment in the common stock of IMC because the value of the
reference property is subject to market fluctuations. The amount you will
receive on the maturity date will only exceed the amount you paid for the
STRYPES, which was $38.25 per STRYPES, if the value of the reference property
exceeds the threshold appreciation price of $46.28. The threshold appreciation
price of $46.28 represents an appreciation of 21% over the initial price of
$38.25. In addition, you will only be entitled to receive on the maturity date
82.65%, which is the percentage equal to the initial price of $38.25 divided
by the threshold appreciation price of $46.28, of any appreciation of the
value of the reference property in excess of the threshold appreciation price
of $46.28. Please review the section entitled "Description of the STRYPES".

There are many factors affecting the trading prices of the STRYPES

     The trading prices of the STRYPES in the secondary market will be
directly affected by the trading prices of the common stock of IMC in the
secondary market. It is impossible to predict whether the price of the common
stock of IMC will rise or fall because several factors may influence the
trading prices of the common stock of IMC. These factors include:

     o    IMC's operating results and prospects;

     o    complex and interrelated political, economic, financial and other
          factors and market conditions that can affect (1) the capital
          markets generally, (2) the market segment of which IMC is a part, or
          (3) the NYSE, on which the common stock of IMC is traded, including
          the level of, and fluctuations in, the trading prices of stocks
          generally and sales of substantial amounts of the common stock of
          IMC in the market subsequent to the offering of the STRYPES or the
          perception that these sales could occur; and

     o    other events that are difficult to predict and are beyond our
          control.

Investing in the STRYPES may affect the market for the common stock of IMC

         Any market that  develops for the STRYPES is likely to influence  and
be influenced by the market for common stock of IMC. For example, the price of
common stock of IMC could become more volatile and could be depressed

     o    by investors' anticipation of the potential distribution into the
          market of substantial amounts of common stock of IMC on the maturity
          date,

     o    by possible sales of common stock of IMC by investors who view the
          STRYPES as a more attractive means of equity participation in IMC,
          and

     o    by hedging or arbitrage trading activity that may develop involving
          the STRYPES and the common stock of IMC.

There may be illiquidity of the STRYPES in the secondary market

     It is not possible to predict how the STRYPES will trade in the secondary
market or whether the secondary market for the STRYPES will be liquid or
illiquid. The STRYPES are novel securities and there is currently no secondary
market for the STRYPES. Although the STRYPES are listed on the NYSE under the
symbol "IGL", you cannot assume (1) that an active trading market for the
STRYPES will develop, (2) that listing on the NYSE will provide you with
liquidity of investment, (3) that the STRYPES will not later be delisted or
(4) that trading of the STRYPES on the NYSE will not be suspended. If the NYSE
delists the STRYPES or suspends the trading of the STRYPES, we will apply for
listing of the STRYPES on another national securities exchange or for
quotation on another trading market. If the STRYPES are not listed or traded
on any securities exchange or trading market, or if trading of the STRYPES is
suspended, pricing information for the STRYPES may be more difficult to obtain
and the liquidity of the STRYPES may be adversely affected.

As a holder of STRYPES,  you have no stockholder's  rights with respect to the
common stock of IMC or the reference property

     You will not be entitled to any rights, including voting rights and
rights to receive any dividends, interest or other distributions , with
respect to the common stock of IMC or the reference property until we have
delivered the reference property on the maturity date. In addition, you will
not be entitled to any rights if the applicable record date for the exercise
of any rights occurs before we deliver the reference property. For example, if
an amendment is proposed to the restated certificate of incorporation of IMC
and the record date for determining the stockholders of record entitled to
vote on the amendment occurs before we deliver the reference property, you, as
a holder of the STRYPES, will not be entitled to vote on the proposed
amendment.

IMC has no obligations with respect to the STRYPES

     We are not affiliated with IMC. IMC has no obligations with respect to
the STRYPES or amounts to be paid to you, including any obligation to take our
needs or yours, as a holder of the STRYPES, into consideration for any reason.
IMC will not receive any of the proceeds of this offering of the STRYPES . IMC
is not responsible for, and has not participated in, the determination of the
timing of, prices for or quantities of the STRYPES to be issued, or the
determination or calculation of the amount receivable by holders of the
STRYPES on the maturity date. In addition, IMC is not involved with the
administration or trading of the STRYPES .





There may be a dilution of common stock of IMC

     The reference property or the equivalent amount of cash that you are
entitled to receive on the maturity date is subject to adjustment for events
such as:

     o    a merger or consolidation in which IMC is not the surviving or
          resulting corporation ,
    

     o    the liquidation, dissolution, winding up or bankruptcy of IMC,

   
     o    stock splits and combinations, stock dividends, and
    

     o    other actions of IMC that modify its capital structure.

   
Please review the section entitled "Description of the STRYPES--Reference
Property Adjustments".

     The reference property or equivalent amount of cash that you may receive
on the maturity date will not be adjusted for other events, such as offerings
of common stock of IMC for cash or in connection with acquisitions. IMC is not
restricted from issuing additional shares of common stock of IMC during the
term of the STRYPES and has no obligation to consider the interests of the
holders of the STRYPES for any reason. Additional issuances may materially and
adversely affect the price of the common stock of IMC. Because of the
relationship of the amount of the reference property or cash to be received on
maturity to the price of the common stock of IMC, other events may adversely
affect the trading price of the STRYPES.

The tax treatment of STRYPES is uncertain

     Because of an absence of authority as to the proper characterization of
the STRYPES, their ultimate tax treatment is uncertain. Accordingly, you
cannot assume that any particular characterization and treatment of the
STRYPES will be accepted by the Internal Revenue Service or upheld by a court.
However, it is the opinion of Brown & Wood LLP, counsel to ML&Co., that the
characterization and tax treatment of the STRYPES described in this
prospectus, while not the only reasonable characterization and tax treatment,
is based on reasonable interpretations of law currently in effect and, even if
successfully challenged by the IRS, will not result in the imposition of
penalties.

     The 1983 indenture, which is more fully described in this prospectus,
will require that if you are subject to U.S. Federal income tax, that you
include currently in income, for U.S. Federal income tax purposes, payments
denominated as interest that are made with respect to a STRYPES in accordance
with your regular method of tax accounting. The 1983 indenture also requires
ML&Co. and holders to treat each STRYPES for tax purposes as a unit consisting
of:

     o    a debt instrument with a fixed principal amount unconditionally
          payable on the maturity date equal to the issue price of the STRYPES
          and bearing interest at the stated interest rate on the STRYPES, and

     o    a forward purchase contract under which you agree to use the
          principal payment due on the debt instrument to purchase on the
          maturity date the reference property which ML&Co. is obligated under
          the STRYPES to deliver at that time, subject to ML&Co.'s right to
          deliver cash instead of the reference property.

The 1983 indenture also requires that upon the acquisition of a STRYPES and
upon your sale or other disposition of a STRYPES before the maturity date, the
amount paid or realized by you be allocated between the debt instrument and
the forward purchase contract based upon their relative fair market values, as
determined on the date of acquisition or disposition. For these purposes, with
respect to acquisitions of STRYPES in connection with the original issuance of
the STRYPES, ML&Co. and you agree to allocate $37.045 of the entire initial
purchase price of a STRYPES to the debt instrument and to allocate the
remaining $1.205 of the entire initial purchase price of a STRYPES to the
forward purchase contract. As a result of this allocation, the debt instrument
will be treated as having been issued with original issue discount for U.S.
Federal income tax purposes.

     The appropriate character and timing of income, gain or loss to be
recognized on a STRYPES is uncertain . You should consult your own tax adviser
concerning the application of the U.S. federal income tax laws to your
particular situation and any consequences of the purchase, ownership and
disposition of the STRYPES arising under the laws of any other taxing
jurisdiction.

Our holding company structure may affect your right to participate in any
distribution of assets of any subsidiary

     Since we are a holding company, our right and the right of our creditors,
including you, as a holder of STRYPES, to participate in any distribution of
the assets of any subsidiary upon its liquidation or reorganization or
otherwise is necessarily subject to the prior claims of creditors of the
subsidiary, except to the extent a bankruptcy court may recognize our claims
as a creditor of the subsidiary . In addition, dividends, loans and advances
from certain subsidiaries, including MLPF&S, to us are restricted by net
capital requirements under the Exchange Act and under rules of exchanges and
other regulatory bodies.
    

Other Considerations

   
     We suggest that you reach an investment decision only after carefully
considering the suitability of the STRYPES in the light of your particular
circumstances.
    



<PAGE>


   
                           MERRILL LYNCH & CO., INC.

     We are a holding company that, through our U.S. and non-U.S. subsidiaries
and affiliates such as Merrill Lynch, Pierce, Fenner & Smith Incorporated,
Merrill Lynch Government Securities Inc., Merrill Lynch Capital Services,
Inc., Merrill Lynch International, Merrill Lynch Capital Markets Bank Ltd.,
Merrill Lynch Asset Management L.P. and Merrill Lynch Mercury Asset
Management, provides investment, financing, advisory, insurance, and related
products on a global basis, including:

     o    securities brokerage, trading and underwriting;

     o    investment banking, strategic services, including mergers and
          acquisitions and other corporate finance advisory activities;

     o    asset management and other investment advisory and recordkeeping
          services;

     o    trading and brokerage of swaps, options, forwards, futures and other
          derivatives;

     o    securities clearance services;

     o    equity, debt and economic research;

     o    banking, trust and lending services, including mortgage lending and
          related services; and

     o    insurance sales and underwriting services.

     We provide these products and services to a wide array of clients,
including individual investors, small businesses, corporations, governments,
governmental agencies and financial institutions.

     Our principal executive office is located at World Financial Center,
North Tower, 250 Vesey Street, New York, New York 10281; our telephone number
is (212) 449-1000.

     If you want to find more information about us, please see the sections
entitled "Where You Can Find More Information" and "Incorporation of
Information We File with the SEC" in this prospectus.

     In this prospectus, references to "ML&Co.", "we", "us" and "our" refer
specifically to Merrill Lynch & Co., Inc., the holding company. ML&Co. is the
issuer of the STRYPES described in this prospectus.
    


<PAGE>

   
                      RATIO OF EARNINGS TO FIXED CHARGES

     In 1998, we acquired the outstanding shares of Midland Walwyn, Inc., in a
transaction accounted for as a pooling-of-interests. The following information
for the fiscal years 1994 through 1997 has been restated as if the two
entities had always been combined.

     The following table sets forth our historical ratios of earnings to fixed
charges for the periods indicated:



                                           Year Ended Last Friday in December
                                       1994     1995     1996     1997      1998
                                       -----------------------------------------

Ratio of earnings to fixed charges(a)  1.2      1.2      1.2      1.2      1.1
- ----------
(a)    The effect of combining Midland Walwyn did not change the ratios reported
       for the fiscal years 1994 through 1997.

     For the purpose of calculating the ratio of earnings to fixed charges,
"earnings" consist of earnings from continuing operations before income taxes
and fixed charges, excluding capitalized interest and preferred security
dividend requirements. "Fixed charges" consist of interest costs, the interest
factor in rentals, amortization of debt issuance costs, preferred security
dividend requirements of subsidiaries, and capitalized interest.
    

<PAGE>

                                IMC GLOBAL INC.

   
     IMC is one of the world's leading producers of crop nutrients for the
international agricultural community . It is also one of the largest
distributors in the United States of crop nutrients and related products
through its retail and wholesale distribution networks. IMC mines, processes
and distributes potash in the United States and Canada, and is a joint venture
partner in IMC-Agrico Company, a leading producer, marketer and distributor of
phosphate crop nutrients and a leading producer and marketer of animal feed
ingredients. IMC's retail distribution network, which extends principally to
corn and soybean farmers in the Midwestern and Southeastern United States, is
one of the largest distributors of crop nutrients and related products in the
United States. IMC also manufactures nitrogen-based and other high-value crop
nutrients which are marketed on a wholesale basis principally in the
Midwestern and Southeastern United States. In addition, IMC sells specialty
lawn and garden, turf, and nursery products on a national basis and ice-melter
products in the Midwest and Eastern snow-belt states.

     IMC is subject to the informational requirements of the Exchange Act.
Accordingly, IMC files reports, proxy and information statements and other
information with the SEC. Copies of these materials can be inspected and
copied at the public reference facilities maintained by the SEC at the
addresses specified under "Where You Can Find More Information". Reports,
proxy and information statements and other information concerning IMC may also
be inspected at the offices of the NYSE.

     ML&Co. is not affiliated with IMC, and IMC has no obligations with
respect to the STRYPES. This prospectus relates only to the STRYPES offered
hereby and does not relate to IMC or the common stock of IMC. IMC has filed a
registration statement on Form S-3 with the SEC covering the shares of common
stock of IMC that may be received by a holder of STRYPES on the maturity date.
The prospectus of IMC constituting a part of the registration statement
includes information relating to IMC and the common stock of IMC, including
risk factors relevant to an investment in the common stock of IMC. The
prospectus of IMC does not constitute a part of this prospectus, nor is it
incorporated by reference herein.
    

                          DESCRIPTION OF THE STRYPES

   
     ML&Co. issued the STRYPES as a series of senior debt securities under the
1983 indenture, which is more fully described in this prospectus. The
following summary of material provisions of the 1983 indenture does not
purport to be complete and is qualified in its entirety by reference to the
1983 indenture. A copy of the 1983 indenture is filed as an exhibit to the
registration statement of which this prospectus is a part.

     Each STRYPES, was issued at a price of $38.25 (the "Initial Price"),
bears interest at the rate of 61/4% of the issue price per annum, or $2.3908
per annum, from July 9, 1996, or from the most recent Interest Payment Date to
which interest has been paid or provided for, until the maturity date or the
earlier date on which the STRYPES are repaid under the terms of the STRYPES.
Interest on the STRYPES is payable in cash quarterly in arrears on January 1,
April 1, July 1 and October 1, beginning October 1, 1996, and on the maturity
date (each, an "Interest Payment Date"), to the persons in whose names the
STRYPES are registered at the close of business on the fifteenth calendar day,
whether or not a Business Day, immediately preceding the Interest Payment
Date. Interest on the STRYPES will be computed on the basis of a 360-day year
of twelve 30-day months. If an Interest Payment Date falls on a day that is
not a Business Day, the interest payment to be made on the Interest Payment
Date will be made on the next succeeding Business Day with the same force and
effect as if made on the Interest Payment Date, and no additional interest
will accrue as a result of the delayed payment.

     The maturity date of the STRYPES is July 1, 2001. On the maturity date,
ML&Co. will pay and discharge each STRYPES by delivering to the holder of the
STRYPES a percentage of each type of Reference Property determined in
accordance with the formula described below. ML&Co.'s will have the right to
deliver, with respect to all, but not less than all, Reference Property
deliverable on the maturity date, cash with an equal value.

     (a)  If the Reference Property Value (as defined below) is greater than
          or equal to $46.28 (the "Threshold Appreciation Price"), the holder
          of the STRYPES will receive 82.65% of each type of Reference
          Property;

     (b)  If the Reference Property Value is less than the Threshold
          Appreciation Price but is greater than the Initial Price, the holder
          of the STRYPES will receive a percentage of each type of Reference
          Property, allocated as proportionately as practicable, so that the
          aggregate value of the Reference Property is equal to the Initial
          Price; and

     (c)  If the Reference Property Value is less than or equal to the Initial
          Price, the holder of the STRYPES will receive 100% of each type of
          Reference Property.

Accordingly, there can be no assurance that the amount receivable by holders
of the STRYPES on the maturity date will be equal to or greater than the issue
price of the STRYPES. If the Reference Property Value is less than the Initial
Price, the amount receivable on the maturity date will be less than the issue
price paid for the STRYPES, in which case an investment in STRYPES will result
in a loss.

     Notwithstanding the foregoing, ML&Co. may, in lieu of delivering the
applicable percentage of each type of Reference Property, deliver cash in an
amount equal to the sum of

     (d)  for any portion of the Reference Property consisting of cash that is
          otherwise deliverable on the maturity date, the amount of cash,
          without interest thereon,

     (e)  for any portion of the Reference Property consisting of property
          other than cash or Reference Securities that is otherwise
          deliverable on the maturity date, the fair market value, as
          determined by a nationally recognized independent investment banking
          firm retained for this purpose by ML&Co., as of the third Trading
          Day preceding the maturity date of the property, and

     (f)  for any portion of the Reference Property consisting of a Reference
          Security (as defined below) that is otherwise deliverable on the
          maturity date, except as described under "Reference Property
          Adjustments" below, an amount equal to the average Closing Price (as
          defined below) per unit of the Reference Security on the 20 Trading
          Days immediately before, but not including, the second Trading Day
          preceding the maturity date multiplied by the number of units of the
          Reference Security constituting part of the Reference Property,
          subject to ML&Co.'s agreement contained in the Purchase Agreement to
          deliver on the maturity date the form of consideration that the
          ML&Co. Subsidiary (as defined below) receives from GVI.
    


   
The right to deliver cash, if exercised by ML&Co., must be exercised with
respect to all Reference Property otherwise deliverable on the maturity date
in payment of all outstanding STRYPES. On or before the sixth Business Day
before the maturity date, ML&Co. will notify The Depository Trust Company and
the trustee and publish a notice in The Wall Street Journal or another daily
newspaper of national circulation stating whether the STRYPES will be paid and
discharged by delivery of the applicable percentage of each type of Reference
Property or cash. At the time the notice is published, the Reference Property
Value will not have been determined. If ML&Co. elects to deliver Reference
Property, holders of the STRYPES will be responsible for the payment of any
and all brokerage costs upon the subsequent sale of Reference Property.

     The term "Reference Property" initially means one share of common stock
of IMC and shall be subject to adjustment from time to time before the
maturity date to reflect the addition or substitution of any cash, securities
and/or other property resulting from the application of the adjustment
provisions described herein. See "--Reference Property Adjustments" below. The
term "Reference Security" means, at any time, any security (as defined in
Section 2(1) of the Securities Act) then constituting part of the Reference
Property. The term "Reference Property Value" means, subject to the adjustment
provisions described below, the sum of

     (g)  for any portion of the Reference Property consisting of cash, the
          amount of cash,

     (h)  for any portion of the Reference Property consisting of property
          other than cash or Reference Securities, the fair market value,
          which will be determined by a nationally recognized independent
          investment banking firm retained for this purpose by ML&Co., as of
          the third Trading Day preceding the maturity date of the property,
          and

     (i)  for any portion of the Reference Property consisting of a Reference
          Security, an amount equal to the average Closing Price per unit of
          the Reference Security on the 20 Trading Days immediately before,
          but not including, the second Trading Day preceding the maturity
          date multiplied by the number of units of the Reference Security
          constituting part of the Reference Property.

     The "Closing Price" of any Reference Security on any date of
determination means (1) the closing sale price or, if no closing price is
reported, the last reported sale price of the Reference Security on the NYSE
on the date of determination or, (2) if the Reference Security is not listed
for trading on the NYSE on any date, as reported in the composite transactions
for the principal United States securities exchange on which the Reference
Security is so listed, or (3) if the Reference Security is not so listed on a
United States national or regional securities exchange, as reported by the
National Association of Securities Dealers, Inc. Automated Quotation System,
or (4) if the Reference Security is not so reported, the last quoted bid price
for the Reference Security in the over-the-counter market as reported by the
National Quotation Bureau or similar organization, or (5) if a bid price is
not available, the market value of the Reference Security on a date as
determined by a nationally recognized independent investment banking firm
retained for this purpose by ML&Co.

     A "Trading Day" is defined as a day on which the Reference Security the
Closing Price of which is being determined (A) is not suspended from trading
on any national or regional securities exchange or association or
over-the-counter market at the close of business and (B) has traded at least
once on the national or regional securities exchange or association or
over-the-counter market that is the primary market for the trading of the
Reference Security.

     For illustrative purposes only, the following table shows the number of
shares of common stock of IMC or the amount of cash that a holder of STRYPES
would receive for each STRYPES at various Reference Property Values. The table
assumes that there will be no Reference Property adjustments as described
below and, accordingly, that on the maturity date the Reference Property will
consist of one share of common stock of IMC. There can be no assurance that
the Reference Property Value will be within the range set forth below. Given
the Initial Price of $38.25 and the Threshold Appreciation Price of $46.28, a
STRYPES holder would receive on the maturity date the following number of
shares of common stock of IMC per STRYPES or, if ML&Co. elects to pay and
discharge the STRYPES with cash, the amount of cash per STRYPES:
    


 Reference                      Number of Shares
   
  Property                        of IMC Common               Amount
   Value                              Stock                   of Cash
  --------                        -------------               -------

  $ 35.00                            1.0000                   $35.00
    
    38.25                            1.0000                    38.25
    42.00                            0.9107                    38.25
    46.28                            0.8265                    38.25
    50.00                            0.8265                    41.33

<PAGE>

Reference Property Adjustments

     The Reference Property is subject to adjustment if an issuer of a
Reference Security shall:

   
          (1)  subdivide or split the outstanding units of the Reference
               Security into a greater number of units;

          (2)  combine the outstanding units of the Reference Security into a
               smaller number of units;

          (3)  issue by reclassification of units of the Reference Security
               any units of another security of the issuer;

          (4)  issue rights or warrants to all holders of the Reference
               Security entitling them, for a period expiring before the
               fifteenth calendar day following the maturity date, to
               subscribe for or purchase any of its securities or other
               property, other than rights to purchase units of the Reference
               Security pursuant to a plan for the reinvestment of dividends
               or interest; or

          (5)  pay a dividend or make a distribution to all holders of the
               Reference Security of cash, securities or other property,
               excluding any cash dividend on any Reference Security
               consisting of capital stock that does not constitute an
               Extraordinary Cash Dividend (as defined below), excluding any
               payment of interest on any Reference Security consisting of an
               evidence of indebtedness and excluding any dividend or
               distribution referred to in clause (1), (2), (3) or (4) above),
               or issue to all holders of the Reference Security rights or
               warrants to subscribe for or purchase any of its securities or
               other property (other than those referred to in clause (4)
               above). Any of the foregoing cash, securities or other property
               or rights or warrants are referred to in this prospectus as the
               "Distributed Assets".

In the case of the events referred to in clauses (1), (2) and (3) above, the
Reference Property shall be adjusted to include the number of units of the
Reference Security and/or other security of the issuer which a holder of units
of the Reference Security would have owned or been entitled to receive
immediately following any event had a holder held, immediately before the
event, the number of units of the Reference Security constituting part of the
Reference Property immediately before the event. Each adjustment shall become
effective immediately after the effective date for subdivision, split,
combination or reclassification, as the case may be. Each adjustment shall be
made successively.

     In the case of the event referred to in clause (4) above, the Reference
Property shall be adjusted to include an amount in cash equal to the fair
market value, which shall be determined in the manner described below, as of
the fifth Business Day, except as provided below, following the date on which
rights or warrants are received by securityholders entitled thereto (the
"Receipt Date"), of each right or warrant multiplied by the product of (A) the
number of rights or warrants issued for each unit of the Reference Security
and (B) the number of units of the Reference Security constituting part of the
Reference Property on the date of issuance of the rights or warrants,
immediately before issuance, without interest thereon. For purposes of the
foregoing, the fair market value of each right or warrant shall be the
quotient of

     (a)  (1) the highest net bid, as of approximately 10:00 A.M., New York
          City time, on the fifth Business Day following the Receipt Date for
          settlement three Business Days later, by a recognized securities
          dealer in The City of New York selected by or on behalf of ML&Co.,
          from three or a fewer number of dealers as may be providing bids,
          recognized dealers selected by or on behalf of ML&Co., for the
          purchase by a quoting dealer of the number of rights or warrants
          (the "Aggregate Number") that a holder of the Reference Security
          would receive if the holder held, as of the record date for
          determination of stockholders entitled to receive rights or
          warrants, a number of units of the Reference Security equal to the
          product of

          (A)  the aggregate number of Outstanding STRYPES as of a record date
               and (B) the number of units of the Reference Security
               constituting part of the Reference Property, divided by

     (a)  (2) the Aggregate Number.

     Each adjustment shall become effective on the fifth Business Day
following the Receipt Date of the rights or warrants. If for any reason ML&Co.
is unable to obtain the required bid on the fifth Business Day following the
Receipt Date, it shall attempt to obtain the bid at successive intervals of
three months and on the third Trading Day before the maturity date until it is
able to obtain the required bid. From the date of issuance of the rights or
warrants until the required bid is obtained, the Reference Property shall
include the number of rights or warrants issued for each unit of the Reference
Security multiplied by the number of units of the Reference Security
constituting part of the Reference Property on the date of issuance of the
rights or warrants, immediately before the issuance, and the rights or
warrants constituting part of the Reference Property shall be deemed for all
purposes hereof to have a fair market value of zero.

     In the case of the event referred to in clause (5) above, the Reference
Property shall be adjusted to include, from and after a dividend, distribution
or issuance, (a) in respect of that portion, if any, of the Distributed Assets
consisting of cash, the amount of Distributed Assets consisting of cash
received for each unit of the Reference Security multiplied by the number of
units of the Reference Security constituting part of the Reference Property on
the date of a dividend, distribution or issuance, immediately before a
dividend, distribution or issuance, without interest thereon, plus (b) in
respect of that portion, if any, of the Distributed Assets which are other
than cash, the number or amount of each type of Distributed Assets other than
cash received with respect to each unit of the Reference Security multiplied
by the number of units of the Reference Security constituting part of the
Reference Property on the date of a dividend, distribution or issuance,
immediately before the dividend, distribution or issuance.

     An "Extraordinary Cash Dividend" means, with respect to any consecutive
12-month period, the amount, if any, by which the aggregate amount of all cash
dividends on any Reference Security consisting of capital stock occurring in a
12-month period or, if the Reference Security was not outstanding at the
commencement of the 12-month period, occurring in a shorter period during
which the Reference Security was outstanding, exceeds on a per share basis 12%
of the average of the Closing Prices per share of the Reference Security over
a 12-month period or a shorter period during which the Reference Security was
outstanding; provided that, for purposes of this definition, the amount of
cash dividends paid on a per share basis will be appropriately adjusted to
reflect the occurrence during the period of any stock dividend or distribution
of shares of capital stock of the issuer of the Reference Security or any
subdivision, split, combination or reclassification of shares of the Reference
Security.

     In the event of a "Reorganization Event", which is

     (A)  any consolidation or merger of an issuer of a Reference Security
          with or into another entity, except for a merger or consolidation in
          which the issuer is the continuing corporation and in which the
          Reference Security outstanding immediately before the merger or
          consolidation is not exchanged for cash, securities or other
          property of the issuer or another entity,

     (B)  any statutory exchange of securities of an issuer of a Reference
          Security with another entity, except in connection with a merger or
          acquisition, or

     (C)  any liquidation, dissolution, winding up or bankruptcy of an issuer
          of a Reference Security, excluding any distribution in the event
          referred to in clause (5) above,

the Reference Property shall be adjusted to include, from and after the
effective date for a Reorganization Event, in lieu of the number of units of
the Reference Security constituting part of the Reference Property immediately
before the effective date for a Reorganization Event, the amount or number of
any cash, securities and/or other property owned or received in a
Reorganization Event with respect to each unit of the Reference Security
multiplied by the number of units of the Reference Security constituting part
of the Reference Property immediately before the effective date for a
Reorganization Event.

     No adjustments will be made for other events, such as offerings of common
stock of IMC by IMC for cash or in connection with acquisitions. Likewise, no
adjustments will be made for any sales of common stock of IMC by GVI.

     ML&Co. is required, within ten Business Days following the occurrence of
an event that requires an adjustment to the Reference Property (or if ML&Co.
is not aware of the occurrence of an event, as soon as practicable after
becoming so aware), to provide written notice to the trustee and to the
holders of the STRYPES of the occurrence of an event and a statement in
reasonable detail setting forth the amount or number of each type of Reference
Security and other property then constituting part of the Reference Property.
    

Fractional Interests

   
     No fractional units of any Reference Security will be delivered if ML&Co.
pays and discharges the STRYPES by delivering Reference Property. In lieu of
any fractional unit otherwise deliverable in respect of all STRYPES of any
holder on the maturity date, a holder shall be entitled to receive an amount
in cash equal to the value of a fractional unit based on the average Closing
Price per unit of the Reference Security on the 20 Trading Days immediately
before, but not including, the second Trading Day preceding the maturity date.

     To the extent practicable, ML&Co. will deliver fractional interests of
any Reference Property other than cash or a Reference Security if ML&Co. pays
and discharges the STRYPES by delivering Reference Property. If a delivery of
fractional interests is not practicable, in lieu of delivering any fractional
interest otherwise deliverable in respect of all STRYPES to any holder on the
maturity date, ML&Co. will deliver holder shall be entitled to receive an
amount in cash equal to the value of the fractional interest based on the fair
market value (as determined by a nationally recognized independent investment
banking firm retained for this purpose by ML&Co.) as of the third Trading Day
preceding the maturity date of the Reference Property other than cash or a
Reference Security.

Redemption, Sinking Fund and Payment  Before Maturity

     The STRYPES are not subject to redemption by ML&Co. before the maturity
date and do not contain sinking fund or other mandatory redemption provisions.
The STRYPES are not subject to payment before the maturity date at the option
of the holder.
    

Ranking

   
     The STRYPES are unsecured obligations and will rank equally with all
other unsecured and unsubordinated indebtedness of ML&Co..

     There are no contractual restrictions on the ability of ML&Co. or its
subsidiaries to incur additional secured or unsecured debt. However,
borrowings by certain subsidiaries, including MLPF&S, are restricted by net
capital requirements under the Exchange Act and under rules of certain
exchanges and other regulatory bodies.
    

Purchase Agreement

   
     GVI is obligated, under the Purchase Agreement described in "Certain
Arrangements with GVI", to deliver to the ML&Co. Subsidiary (as defined below)
immediately before the maturity date the Reference Property required by ML&Co.
to pay and discharge all of the STRYPES, including any STRYPES issued pursuant
to the over-allotment option granted by ML&Co. to MLPF&S. In lieu of
delivering the Reference Property immediately before the maturity date, GVI
has the right to satisfy its obligation under the Purchase Agreement by
delivering cash in an amount equal to the value of the Reference Property
immediately before the maturity date. The right to deliver cash, if exercised
by GVI, must be exercised with respect to all of the Reference Property
deliverable under the Purchase Agreement.
    

Securities Depository

   
     Description of the Global Securities

     The STRYPES are represented by one or more fully registered global
securities. Each global security has been deposited with, or on behalf of, The
Depository Trust Company or DTC (DTC, together with any successor thereto,
being a "depositary"), as depositary, registered in the name of Cede & Co.
(DTC's partnership nominee). Unless and until it is exchanged in whole or in
part for STRYPES in definitive form , no global security may be transferred
except as a whole by the depositary to a nominee of the depositary or by a
nominee of the depositary to the depositary or another nominee of the
depositary or by the depositary or any nominee to a successor of the
depositary or a nominee of that successor.

     So long as DTC, or its nominee, is a registered owner of a global
security, DTC or its nominee, as the case may be, will be considered the sole
owner or holder of the STRYPES represented by a global security for all
purposes under the 1983 indenture. Except as provided below, the beneficial
owners of the STRYPES represented by a global security are not entitled to
have the STRYPES represented by the global security registered in their names,
will not receive or be entitled to receive physical delivery of the STRYPES in
definitive form and are not considered the owners or holders thereof under the
1983 indenture, including for purposes of receiving any reports delivered by
ML&Co. or the trustee under the 1983 indenture. Accordingly, each person
owning a beneficial interest in a global security must rely on the procedures
of DTC and, if the person is not a participant of DTC on the procedures of the
participant through which the person owns its interest, to exercise any rights
of a holder under the 1983 indenture. ML&Co. understands that under existing
industry practices, in the event that ML&Co. requests any action of holders or
that an owner of a beneficial interest in a global security desires to give or
take any action which a holder is entitled to give or take under the 1983
indenture, DTC would authorize the participants holding the relevant
beneficial interests to give or take action, and those participants would
authorize beneficial owners owning through such participants to give or take
action or would otherwise act upon the instructions of beneficial owners.
Conveyance of notices and other communications by DTC to participants, by
participants to indirect participants and by participants and indirect
participants to beneficial owners are governed by arrangements among them,
subject to any statutory or regulatory requirements as may be in effect from
time to time.

     DTC Procedures

     The following is based on information furnished by DTC:

     DTC is the securities depositary for the STRYPES. The STRYPES have been
issued as fully registered securities registered in the name of Cede & Co.
(DTC's partnership nominee). One or more fully registered global securities
have been issued for the STRYPES in the aggregate principal amount of such
issue, and has been deposited with DTC.

     DTC is a limited-purpose trust company organized under the New York
Banking Law, a "banking organization" within the meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing corporation"
within the meaning of the New York Uniform Commercial Code, and a "clearing
agency" registered pursuant to the provisions of Section 17A of the 1934 Act.
DTC holds securities that its participants deposit with DTC. DTC also
facilitates the settlement among participants of securities transactions, such
as transfers and pledges, in deposited securities through electronic
computerized book-entry changes in participants' accounts, thereby eliminating
the need for physical movement of securities certificates. Direct participants
of DTC include securities brokers and dealers, banks, trust companies,
clearing corporations and certain other organizations. DTC is owned by a
number of its direct participants and by the NYSE, the AMEX and the National
Association of Securities Dealers, Inc. Access to the DTC's system is also
available to others such as securities brokers and dealers, banks and trust
companies that clear through or maintain a custodial relationship with a
direct participant, either directly or indirectly. The rules applicable to DTC
and its participants are on file with the SEC.

     Purchases of STRYPES under DTC's system must be made by or through direct
participants, which will receive a credit for the STRYPES on DTC's records.
The ownership interest of each beneficial owner is in turn to be recorded on
the records of direct and indirect participants. Beneficial owners will not
receive written confirmation from DTC of their purchase, but beneficial owners
are expected to receive written confirmations providing details of the
transaction, as well as periodic statements of their holdings, from the direct
participants or indirect participants through which such beneficial owner
entered into the transaction. Transfers of ownership interests in the STRYPES
are to be accomplished by entries made on the books of participants acting on
behalf of beneficial owners.

     To facilitate subsequent transfers, all STRYPES deposited with DTC are
registered in the name of DTC's partnership nominee, Cede & Co. The deposit of
STRYPES with DTC and their registration in the name of Cede & Co. effect no
change in beneficial ownership. DTC has no knowledge of the actual beneficial
owners of the STRYPES; DTC's records reflect only the identity of the direct
participants to whose accounts such STRYPES are credited, which may or may not
be the beneficial owners. The participants are responsible for keeping account
of their holdings on behalf of their customers.

     Conveyance of notices and other communications by DTC to direct
participants, by direct participants to indirect participants, and by direct
and indirect participants to beneficial owners are governed by arrangements
among them, subject to any statutory or regulatory requirements as may be in
effect from time to time.

     Neither DTC nor Cede & Co. will consent or vote with respect to the
STRYPES. Under its usual procedures, DTC mails an omnibus proxy to ML&Co. as
soon as possible after the applicable record date. The omnibus proxy assigns
Cede & Co.'s consenting or voting rights to those direct participants
identified in a listing attached to the omnibus proxy to whose accounts the
STRYPES are credited on the record date.

     Principal, premium, if any, and/or interest, if any, payments on the
STRYPES will be made in immediately available funds to DTC. DTC's practice is
to credit direct participants' accounts on the applicable payment date in
accordance with their respective holdings shown on the depositary's records
unless DTC has reason to believe that it will not receive payment on such
date. Payments by participants to beneficial owners will be governed by
standing instructions and customary practices, as is the case with securities
held for the accounts of customers in bearer form or registered in "street
name", and will be the responsibility of such participant and not of DTC, the
trustee or ML&Co., subject to any statutory or regulatory requirements as may
be in effect from time to time. Payment of principal, premium, if any, and/or
interest, if any, to DTC is the responsibility of ML&Co. or the trustee,
disbursement of such payments to direct participants is the responsibility of
DTC, and disbursement of such payments to the beneficial owners is the
responsibility of direct and indirect participants.

     Exchange for Certificated Securities

     If

     (j)  the depositary is at any time unwilling or unable to continue as
          depositary and a successor depositary is not appointed by ML&Co.
          within 60 days,

     (k)  ML&Co. executes and delivers to the trustee a company order to the
          effect that the global securities shall be exchangeable, and

     (l)  an Event of Default under the 1983 indenture has occurred and is
          continuing with respect to the STRYPES,

the global securities will be exchangeable for STRYPES in definitive form of
like tenor and of an equal aggregate principal amount. The definitive STRYPES
will be registered in such name or names as the depositary shall instruct the
trustee. It is expected that such instructions may be based upon directions
received by the depositary from participants with respect to ownership of
beneficial interests in the global securities.

     In addition, ML&Co. may decide to discontinue use of the system of
book-entry transfers through the depositary. In that event, STRYPES in
definitive form will be printed and delivered.

     The information in this section concerning DTC and DTC's system has been
obtained from sources that ML&Co. believes to be reliable, but ML&Co. takes no
responsibility for its accuracy.

Governing Law 

     The 1983 indenture and the STRYPES will be governed by, and construed in
accordance with, the laws of the State of New York.
    

Listing

   
     The STRYPES have been listed on the NYSE under the symbol "IGL".

                                                    OTHER TERMS

     ML&Co. issued the STRYPES as a series of senior debt securities under the
1983 indenture, dated as of April 1, 1983, as amended and restated, between
ML&Co. and The Chase Manhattan Bank, as trustee. A copy of the 1983 indenture
is filed as an exhibit to the registration statement relating to the STRYPES
of which this prospectus is a part. The following summaries of the material
provisions of the 1983 indenture are not complete and are subject to, and
qualified in their entirety by reference to, all provisions of the 1983
indenture, including the definitions of terms in the 1983 indenture.

     ML&Co. may issue series of senior debt securities from time to time under
the 1983 indenture, without limitation as to aggregate principal amount, in
one or more series and upon terms as ML&Co. may establish under the provisions
of the 1983 indenture.

     The 1983 indenture and the STRYPES are governed by and construed in
accordance with the laws of the State of New York.

     ML&Co. may issue senior debt securities with terms different from those
of senior debt securities previously issued, and issue additional senior debt
securities of a previously issued series of senior debt securities.

     The senior debt securities are unsecured and rank equally with all other
unsecured and unsubordinated indebtedness of ML&Co. However, because ML&Co. is
a holding company, the rights of ML&Co. and its creditors, including the
holders of senior debt securities, to participate in any distribution of the
assets of any subsidiary upon its liquidation or reorganization or otherwise
are necessarily subject to the prior claims of creditors of the subsidiary,
except to the extent that a bankruptcy court may recognize claims of ML&Co.
itself as a creditor of the subsidiary. In addition, dividends, loans and
advances from certain subsidiaries, including MLPF&S, to ML&Co. are restricted
by net capital requirements under the Exchange Act, and under rules of
exchanges and other regulatory bodies.

Limitations Upon Liens

     ML&Co. may not, and may not permit any majority-owned subsidiary to,
create, assume, incur or permit to exist any indebtedness for borrowed money
secured by a pledge, lien or other encumbrance, other than those liens
specifically permitted by the 1983 indenture, on the Voting Stock owned
directly or indirectly by ML&Co. of any majority-owned subsidiary, other than
a majority-owned subsidiary which, at the time of the incurrence of the
secured indebtedness, has a net worth of less than $3,000,000, unless the
outstanding senior debt securities are secured equally and ratably with the
secured indebtedness.

     "Voting Stock" is defined in the 1983 Indenture as the stock of the class
or classes having general voting power under ordinary circumstances to elect
at least a majority of the board of directors, managers or trustees of a
corporation provided that, for the purposes of the 1983 Indenture, stock that
carries only the right to vote conditionally on the occurrence of an event is
not considered voting stock whether or not the event has happened.

Limitation on Disposition of Voting Stock of, and Merger and Sale of Assets by,
MLPF&S

     ML&Co. may not sell, transfer or otherwise dispose of any Voting Stock of
MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of its
Voting Stock, unless, after giving effect to any such transaction, MLPF&S
remains a Controlled Subsidiary.

     "Controlled Subsidiary" is defined in the 1983 indenture to mean a
corporation more than 80% of the outstanding shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

     In addition, ML&Co. may not permit MLPF&S to:

     o    merge or consolidate, unless the surviving company is a Controlled
          Subsidiary, or

     o    convey or transfer its properties and assets substantially as an
          entirety, except to one or more Controlled Subsidiaries.

Merger and Consolidation

     ML&Co. may consolidate or merge with or into any other corporation and
ML&Co. may sell, lease or convey all or substantially all of its assets to any
corporation, provided that:

     o    the resulting corporation, if other than ML&Co., is a corporation
          organized and existing under the laws of the United States of
          America or any U.S. state and assumes all of ML&Co.'s obligations
          to:

     o    pay any amounts due and payable or deliverable with respect to all
          the Senior Debt Securities; and

     o    perform and observe all of ML&Co.'s obligations under the 1983
          indenture, and

     o    ML&Co. or the successor corporation, as the case may be, is not,
          immediately after any consolidation or merger, in default under the
          1983 indenture.

Modification and Waiver

     ML&Co. and the trustee may modify and amend the 1983 indenture with the
consent of holders of at least 66 2/3% in principal amount of each outstanding
series of debt securities affected. However, without the consent of each
holder of any outstanding debt security affected, no amendment or modification
to any indenture may:

     o    change the stated maturity date of the principal of, or any
          installment of interest or Additional Amounts payable on, any senior
          debt security or any premium payable on redemption, or change the
          redemption price;

     o    reduce the principal amount of, or the interest or Additional
          Amounts payable on, any senior debt security or reduce the amount of
          principal which could be declared due and payable before the stated
          maturity date;

     o    change the place or currency of any payment of principal or any
          premium, interest or Additional Amounts payable on any senior debt
          security;

     o    impair the right to institute suit for the enforcement of any
          payment on or with respect to any senior debt security;

     o    reduce the percentage in principal amount of the outstanding senior
          debt securities of any series, the consent of whose holders is
          required to modify or amend the 1983 indenture; or

     o    modify the foregoing requirements or reduce the percentage of
          outstanding senior debt securities necessary to waive any past
          default to less than a majority.

     No modification or amendment of ML&Co.'s Subordinated indenture or any
Subsequent indenture for subordinated debt securities may adversely affect the
rights of any holder of ML&Co.'s senior indebtedness without the consent of
each holder affected. The holders of at least a majority in principal amount
of outstanding senior debt securities of any series may, with respect to that
series, waive past defaults under the 1983 indenture and waive compliance by
ML&Co. with provisions in the 1983 indenture, except as described under
"--Events of Default".

Events of Default

     Each of the following will be Events of Default with respect to senior
debt securities of any series:

     o    default in the payment of any interest or Additional Amounts payable
          when due and continuing for 30 days;

     o    default in the payment of any principal or premium when due; 

     o    default in the deposit of any sinking fund payment, when due;

     o    default in the performance of any other obligation of ML&Co.
          contained in the 1983 indenture for the benefit of that series or in
          the senior debt securities of that series, continuing for 60 days
          after written notice as provided in the 1983 indenture;

     o    specified events in bankruptcy, insolvency or reorganization of
          ML&Co.; and

     o    any other Event of Default provided with respect to senior debt
          securities of that series which are not inconsistent with the 1983
          indenture.

If an Event of Default occurs and is continuing for any series of senior debt
securities, other than as a result of the bankruptcy, insolvency or
reorganization of ML&Co., the trustee or the holders of at least 25% in
principal amount of the outstanding senior debt securities of that series may
declare all amounts, or any lesser amount provided for in the senior debt
securities, due and payable or deliverable immediately. At any time after a
declaration of acceleration has been made with respect to senior debt
securities of any series but before the trustee has obtained a judgment or
decree for payment of money, the holders of a majority in principal amount of
the outstanding senior debt securities of that series may rescind any
declaration of acceleration and its consequences, if all payments due, other
than those due as a result of acceleration, have been made and all Events of
Default have been remedied or waived.

     The holders of a majority in principal amount or aggregate issue price of
the outstanding debt securities of that series may waive any Event of Default
with respect to that series, except a default:

     o    in the payment of any amounts due and payable or deliverable under
          the debt securities of that series; or

     o    in respect of an obligation or provision of any indenture which
          cannot be modified under the terms of that indenture without the
          consent of each holder of each series of debt securities affected.

     The holders of a majority in principal amount of the outstanding senior
debt securities of a series may direct the time, method and place of
conducting any proceeding for any remedy available to the trustee or
exercising any trust or power conferred on the trustee with respect to those
senior debt securities, provided that any direction shall not be in conflict
with any rule of law or the 1983 indenture. Before proceeding to exercise any
right or power under the 1983 indenture at the direction of the holders, the
trustee shall be entitled to receive from the holders reasonable security or
indemnification against the costs, expenses and liabilities which might be
incurred by it in complying with any direction.

     The STRYPES and other series of senior debt securities issued under the
1983 indenture do not have the benefit of any cross-default provisions with
other indebtedness of ML&Co.

     ML&Co. is required to furnish to the trustee annually a statement as to
the fulfillment by ML&Co. of all of its obligations under the 1983 indenture.
    

                         CERTAIN ARRANGEMENTS WITH GVI

   
     ML&Co., Merrill Lynch Mortgage Capital Inc., our wholly-owned subsidiary
(the "ML&Co. Subsidiary"), and GVI have entered into a purchase agreement (the
"Purchase Agreement"). Under the Purchase Agreement, GVI is obligated to
deliver to the ML&Co. Subsidiary immediately before the maturity date the
Reference Property required by ML&Co. to pay and discharge all of the STRYPES.
In lieu of delivering the Reference Property immediately before the maturity
date, GVI has the right to satisfy its obligation under the Purchase Agreement
by delivering cash in an amount equal to the value of the Reference Property
immediately before the maturity date. The right to deliver cash, if exercised
by GVI, must be exercised with respect to all of the Reference Property
deliverable under the Purchase Agreement. Under the Purchase Agreement, ML&Co.
has agreed to pay and discharge the STRYPES by delivering to the holders of
the STRYPES on the maturity date the form of consideration that the ML&Co.
Subsidiary receives from GVI. The consideration to be paid by the ML&Co.
Subsidiary under the Purchase Agreement is $153,382,017 in the aggregate,
which was paid to GVI on July 9, 1996. No other consideration is payable by
the ML&Co. Subsidiary to GVI in connection with its acquisition of the
Reference Property under the Purchase Agreement or the performance of the
Purchase Agreement by GVI. ML&Co. has agreed with GVI that, without the prior
consent of GVI, it will not amend the 1983 indenture in any respect that would
adversely affect any obligation of GVI under the Purchase Agreement,
including, without limitation, increasing the consideration that GVI is
obligated to deliver under the Purchase Agreement.

     Until such time, if any, as GVI shall have delivered the Reference
Property to the ML&Co. Subsidiary under the terms of the Purchase Agreement,
GVI will retain all ownership rights with respect to the Reference Property
held by it (including, without limitation, voting rights and rights to receive
any dividends, interest or other distributions in respect thereof).

     GVI has no obligations with respect to the STRYPES or amounts to be paid
to holders of the STRYPES, including any obligation to take our needs or
yours, as holders of the STRYPES, into consideration in determining whether to
deliver the Reference Property or cash or for any other reason. The Purchase
Agreement among ML&Co., the ML&Co. Subsidiary and GVI is a commercial
transaction and does not create any rights in, or for the benefit of, any
holder of STRYPES.

     In the event GVI does not perform under the Purchase Agreement, ML&Co.
will be required to otherwise acquire the Reference Property for delivery to
the holders of the STRYPES on the maturity date, unless it elects to exercise
its option to deliver cash with an equal value.

                      WHERE YOU CAN FIND MORE INFORMATION

     We file reports, proxy statements and other information with the SEC. Our
SEC filings are also available over the Internet at the SEC's web site at
http://www.sec.gov. You may also read and copy any document we file by
visiting the SEC's public reference rooms in Washington, D.C., New York, New
York, and Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further
information about the public reference rooms. You may also inspect our SEC
reports and other information at the New York Stock Exchange, Inc., 20 Broad
Street, New York, New York 10005.

     We have filed a registration statement on Form S-3 with the SEC covering
the STRYPES and other securities. For further information on ML&Co. and the
STRYPES, you should refer to our registration statement and its exhibits. This
prospectus summarizes material provisions of contracts and other documents
that we refer you to. Because the prospectus may not contain all the
information that you may find important, you should review the full text of
these documents. We have included copies of these documents as exhibits to our
registration statement of which this prospectus is a part.

               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

     The SEC allows us to incorporate by reference the information we file
with them, which means:

     o    incorporated documents are considered part of the prospectus;

     o    we can disclose important information to you by referring you to
          those documents; and

     o    information that we file with the SEC will automatically update and
          supersede this incorporated information.

     We incorporate by reference the documents listed below which were filed
with the SEC under the Exchange Act:

     o    annual report on Form 10-K for the year ended December 25, 1998; and

     o    current reports on Form 8-K dated December 28, 1998, January 19, 1999,
          February 17, 1999, February 18, 1999, February 22, 1999, February 23,
          1999 and March 26, 1999.

     We also incorporate by reference each of the following documents that we
will file with the SEC after the date of this prospectus until this offering
is completed or after the date of this initial registration statement and
before the effectiveness of the registration statement:

     o    reports filed under Sections 13(a) and (c) of the Exchange Act;

     o    definitive proxy or information statements filed under Section 14 of
          the Exchange Act in connection with any subsequent stockholders'
          meeting; and

     o    any reports filed under Section 15(d) of the Exchange Act.

     You should rely only on information contained or incorporated by
reference in this prospectus. We have not, and MLPF&S has not, authorized any
other person to provide you with different information. If anyone provides you
with different or inconsistent information, you should not rely on it. We are
not, and MLPF&S is not, making an offer to sell these securities in any
jurisdiction where the offer or sale is not permitted.

     You should assume that the information appearing in this prospectus is
accurate as of the date of this prospectus only. Our business, financial
condition and results of operations may have changed since that date.

     You may request a copy of any filings referred to above (excluding
exhibits), at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan, Jr., Corporate Secretary's Office, Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.

                             PLAN OF DISTRIBUTION

     This prospectus has been prepared in connection with secondary sales of
the STRYPES and is to be used by MLPF&S when making offers and sales related
to market-making transactions in the STRYPES.

     MLPF&S may act as principal or agent in these market-making transactions.

     The STRYPES may be offered on the NYSE or off the exchange in negotiated
transactions or otherwise.

     The distribution of the STRYPES will conform to the requirements set
forth in the applicable sections of Rule 2720 of the Conduct Rules of the
NASD.
    

                                    EXPERTS

   
         The consolidated financial statements and the related financial
statement schedule incorporated in this prospectus by reference from the
Annual Report on Form 10-K of Merrill Lynch & Co., Inc. and subsidiaries have
been audited by Deloitte & Touche LLP, independent auditors, as stated in
their reports (which express an unqualified opinion and which report on the
consolidated financial statements includes an explanatory paragraph 
for the change in accounting method for certain internal-use software
development costs), which are incorporated herein by reference, and have been
so incorporated in reliance upon the reports of such firm given upon their
authority as experts in accounting and auditing.

         
    


<PAGE>
   
The information in this prospectus is not complete and may be changed. We may
not sell these securities until the registration statement filed with the
Securities and Exchange Commission is effective. This prospectus is not an
offer to sell these securities and it is not soliciting an offer to buy these
securities in any state where the offer or sale is not permitted.
    



   
                             Subject to Completion
                  Preliminary Prospectus dated March 26, 1999
                                         
P R O S P E C T U S 
                           Merrill Lynch & Co., Inc.
   
            7 7/8% STRUCTURED YIELD PRODUCT EXCHANGEABLE FOR STOCK(SM)
                             Due February 1, 2001
                                 "STRYPES (SM)"
              Payable with Shares of Common Stock of CIBER, Inc.
                          or cash with an equal value
    
                                  -----------

   
     Merrill Lynch & Co., Merrill Lynch, Pierce, Fenner & Smith Incorporated,
our wholly-owned subsidiary, will use this prospectus when making offers and
sales related to market-making transactions in the STRYPES.

     The issue price of each STRYPES was $54.125, which was the last sale
price of one share of common  stock,  par value  $.01 per  share,  of CIBER on
January 26, 1998, as reported on the New York Stock Exchange. The STRYPES will
mature on February 1, 2001.

                What you will receive before the maturity date:

o    On each February 1, May 1, August 1 and November 1, beginning May 1,
     1998, we will pay you interest on the STRYPES in cash at the rate of 7
     7/8% per year.

                  What you will receive on the maturity date:

o    For each STRYPES you own, you will receive a number of shares of common
     stock of CIBER or an equivalent amount of cash according to the maturity
     price. The maturity price is the average closing price per share of
     common stock of CIBER on a number of days before the maturity date. The
     amount you will receive is also subject to adjustments, which are more
     fully described in this prospectus.

<TABLE>
<CAPTION>

<S>                                              <C>

        If the maturity price is:                           You will receive:
(a)   greater than $91.4713                      .7692 shares of common stock of CIBER
(b)   less than $91.4713 but greater than        a fractional share of the common stock of CIBER equal to $70.3625
      $70.3625                                   one share of common stock of CIBER
(c)   less than  $70.3625  but  greater than     a number of shares of common  stock  equal to  $54.125,  based on the
      or equal to $54.125  (d) less than         maturity price
      $54.125 but greater than $51.4188          1.0526 shares of common stock of CIBER
(e)   less than $51.4188

</TABLE>

Investing in the STRYPES involves risks, including the risk that your investment
         may result in a loss. See "Risk Factors" beginning on page 3.

     The STRYPES are listed on the NYSE under the trading symbol "BOB".

     Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if
this prospectus is truthful or complete. Any representation to the contrary is
a criminal offense.

      The sale price of the STRYPES will be the prevailing price at the time of
sale. 
    
                                  -----------

                              Merrill Lynch & Co.
                                  -----------

   
                    The date of this prospectus is , 199 .

"STRYPES" and "Structured Yield Product Exchangeable for Stock" are registered
service marks owned by ML&Co.
    

   
                              TABLE OF CONTENTS

                                                                          Page

RISK FACTORS................................................................4

MERRILL LYNCH & CO., INC....................................................8

RATIO OF EARNINGS TO FIXED CHARGES..........................................9

CIBER, INC.................................................................10

DESCRIPTION OF THE STRYPES.................................................10

OTHER TERMS................................................................19

CERTAIN ARRANGEMENTS WITH THE CONTRACTING STOCKHOLDER......................23

INCORPORATION OF INFORMATION WE FILE WITH THE SEC..........................25

PLAN OF DISTRIBUTION.......................................................25

EXPERTS....................................................................26
    

<PAGE>

   
                                 RISK FACTORS

         Your investment in the STRYPES will involve risks. You should
carefully  consider the following  discussion of risks before deciding whether
an investment in the STRYPES is suitable for you.

You may suffer a loss on your investment

     You should be aware that at maturity the amount you will receive may
be less  than the  amount  you paid for the  STRYPES,  which was  $54.125  per
STRYPES.  Although  your  investment  in the STRYPES may be  protected  from a
depreciation in the value of the common stock of CIBER, if the maturity price
does not fall below the downside protection  threshold price of $51.4188,  you
will have only limited protection from a depreciation below 95% of the initial
price of $54.125.  If the maturity  price of the common stock of CIBER is less
than the downside  protection  threshold  price, the amount you may receive on
the  maturity  date will be less than the issue price you paid for the STRYPES
and,  therefore,  your investment in the STRYPES will result in a loss to you.
Accordingly,  you assume the risk that the market value of the common stock of
CIBER may  decline  below 95% of the initial  price of  $54.125,  and that the
decline could be substantial.

Your investment in the STRYPES may differ from an investment in other debt
securities

     The terms of the STRYPES differ from those of ordinary debt securities
because the value of the common stock of CIBER or the equivalent amount in
cash that you will receive on the maturity date is not fixed, but is based on
the maturity price of the common stock of CIBER. Please review the section
entitled "Description of the STRYPES".

There may be a limited opportunity for equity appreciation

     Your opportunity for equity appreciation may be greater if you made a
direct investment in the common stock of CIBER because the amount you may
receive on the maturity date will exceed the initial appreciation cap of
$70.3625, which represents an appreciation of 30% over the initial price of
$54.125, only if the maturity price of the common stock of CIBER exceeds the
threshold appreciation price of $91.4713, which represents an appreciation of
69% over the initial price. Moreover, you will be entitled to receive on the
maturity date only 76.92%, which is the percentage equal to the initial
appreciation cap of $70.3625 divided by the threshold appreciation price of
$91.4713, of any appreciation of the value of common stock of CIBER above the
threshold appreciation price.

     Because the price of the common stock of CIBER is subject to market
fluctuations, the value of the common stock of CIBER or the amount of cash you
may receive on the maturity date may be more or less than the issue price of
the STRYPES. If the maturity price is less than the downside protection
threshold price, you will have only limited protection from a depreciation
below 95% of the initial price of $54.125. Please review the section entitled
"Description of the STRYPES".

There are many factors affecting the trading prices of the STRYPES

     The trading prices of the STRYPES in the secondary market will be
directly affected by the trading prices of the common stock of CIBER in the
secondary market. It is impossible to predict whether the price of the common
stock of CIBER will rise or fall because several factors may influence the
trading prices of the common stock of CIBER. These factors include:

     o    CIBER 's operating results and prospects ,

     o    complex and interrelated political, economic, financial and other
          factors and market conditions that can affect (1) the capital
          markets generally, (2) the market segment of which CIBER is a part,
          or (3) the NYSE, on which the common stock of CIBER is traded,
          including the level of, and fluctuations in, the trading prices of
          stocks generally and sales of substantial amounts of the common
          stock of CIBER in the market subsequent to the offering of the
          STRYPES or the perception that these sales could occur, and

     o    other events that are difficult to predict and are beyond our
          control.

There may be illiquidity of the STRYPES in the secondary market

     It is not possible to predict how the STRYPES will trade in the secondary
market or whether the secondary market for the STRYPES will be liquid or
illiquid. The STRYPES are novel securities and there is currently no secondary
market for the STRYPES. Although the STRYPES are listed on the NYSE under the
symbol "BOB", you cannot assume

     o    that an active trading market for the STRYPES will develop,

     o    that listing on the NYSE will provide you with liquidity of
          investment,
    

     o    that the STRYPES will not later be delisted or

     o    that trading of the STRYPES on the NYSE will not be suspended.

   
     If the NYSE delists the STRYPES or suspends the trading of the STRYPES,
we will apply for listing of the STRYPES on another national securities
exchange or for quotation on another trading market. If the STRYPES are not
listed or traded on any securities exchange or trading market, or if trading
of the STRYPES is suspended, it may be more difficult to obtain pricing
information for the STRYPES and the liquidity of the STRYPES may be adversely
affected.

Investing in the STRYPES  may affect the  market for the common stock of CIBER 

     Any market that develops for the STRYPES is likely to influence and be
influenced by the market for common stock of CIBER. For example, the price of
common stock of CIBER could become more volatile and could be depressed

     o    by investors' anticipation of the potential distribution into the
          market of substantial amounts of common stock of CIBER on the
          maturity date,

     o    by possible sales of common stock of CIBER by investors who view the
          STRYPES as a more attractive means of equity participation in CIBER,
          and

     o    by hedging or arbitrage trading activity that may develop involving
          the STRYPES and the common stock of CIBER.

As a holder of  STRYPES, you have no stockholder's rights with respect to the
common stock of CIBER 

     You will not be entitled to any rights, including voting rights and
rights to receive any dividends, interest or other distributions , with
respect to the common stock of CIBER until we have delivered the shares of
common stock of CIBER on the maturity date. In addition, you will not be
entitled to any rights if the applicable record date for the exercise of any
rights occurs before we deliver the shares. For example, if an amendment is
proposed to the amended and restated certificate of incorporation of CIBER and
the record date for determining the stockholders of record entitled to vote on
the amendment occurs before we deliver the shares of common stock of CIBER,
you, as a holder of the STRYPES, will not be entitled to vote on the proposed
amendment.

CIBER has no obligations with respect to the STRYPES

     We are not affiliated with CIBER. CIBER has no obligations with respect
to the STRYPES or amounts to be paid to you, including any obligation to take
our needs or yours, as a holder of the STRYPES, into consideration for any
reason. CIBER will not receive any of the proceeds of this offering of the
STRYPES . CIBER is not responsible for, and has not participated in, the
determination of the timing of, prices for or quantities of the STRYPES to be
issued, or the determination or calculation of the amount you will receive, as
a holder of the STRYPES, on the maturity date. In addition, CIBER is not
involved with the administration or trading of the STRYPES .

There may be a dilution of common stock of CIBER

     The number of shares of common stock of CIBER or the equivalent amount of
cash that you are entitled to receive on the maturity date is subject to
adjustment for events such as:
    

     o    a merger or consolidation in which CIBER is not the surviving or
          resulting corporation,

   
     o    a sale or transfer of substantially all of the assets of CIBER,

     o    the liquidation, dissolution, winding up or bankruptcy of CIBER,

     o    stock splits and combinations, stock dividends, and
    

     o    other actions of CIBER that modify its capital structure.

   
Please review the section entitled "Description of the  STRYPES--Dilution
Adjustments". 

     The number of shares of common stock of CIBER or the cash amount that you
may receive as a holder of the STRYPES on the maturity date will not be
adjusted for other events not specifically provided, such as offerings of
common stock of CIBER by CIBER for cash or in connection with acquisitions.

     In addition, no adjustments will be made for any sales of common stock of
CIBER by any principal stockholder of CIBER, including the contracting
stockholder. The contracting stockholder is Bobby G. Stevenson, who
individually and as settlor, beneficiary and trustee of the 1998 Bobby G.
Stevenson Revocable Trust, is the contracting stockholder. At December 31,
1997, the contracting stockholder owned beneficially approximately 27% of the
outstanding common stock of CIBER. CIBER is not restricted from issuing
additional shares of common stock of CIBER during the term of the STRYPES .
Because the contracting stockholder can exercise significant influence on the
business and affairs of CIBER, any decision to issue additional shares of
common stock of CIBER will be influenced by the contracting stockholder. The
principal stockholders of CIBER, including the contracting stockholder, are
also not precluded from selling shares of common stock of CIBER under Rule 144
under the Securities Act or by causing CIBER to register shares.

     Neither CIBER nor any stockholder of CIBER, including the contracting
stockholder, has any duty or obligation to consider the interests of the
holders of the STRYPES for any reason. Additional issuances or sales may
materially and adversely affect the price of the common stock of CIBER.
Because of the relationship of the number of shares of common stock of CIBER
or the cash amount you will receive on the maturity date to the price of the
common stock of CIBER, other events may adversely affect the trading price of
the STRYPES. You cannot assume that CIBER will not take any of the foregoing
actions or that CIBER or any of its principal stockholders, including the
contracting stockholder, it will not make offerings of, or that will not sell
any, common stock of CIBER in the future, or as to the amount of any such
offerings or sales.


The tax treatment of STRYPES is uncertain

     Because of an absence of authority as to the proper characterization of
the STRYPES, their ultimate tax treatment is uncertain. Accordingly, you
cannot assume that any particular characterization and tax treatment of the
STRYPES will be accepted by the Internal Revenue Service or upheld by a court.
However, it is the opinion of Brown & Wood LLP, counsel to ML&Co., that the
characterization and tax treatment of the STRYPES described in this
prospectus, while not the only reasonable characterization and tax treatment,
is based on reasonable interpretations of law currently in effect and, even if
successfully challenged by the IRS, will not result in the imposition of
penalties. Under the 1983 indenture, which is more fully described in this
prospectus, if you are subject to United States Federal income tax, you must
include currently in income, for United States Federal income tax purposes,
payments denominated as interest that are made with respect to a STRYPES in
accordance with your regular method of tax accounting. In addition, ML&Co. and
you, as a holder of the STRYPES, are required to treat each STRYPES for tax
purposes as a unit consisting of:

     o    a debt instrument with a fixed principal amount unconditionally
          payable on the maturity date equal to the issue price of the STRYPES
          and bearing interest at the stated interest rate on the STRYPES and

     o    a forward purchase contract under which you agree to use the
          principal payment due on the debt instrument to purchase on the
          maturity date the common stock of CIBER which ML&Co. is obligated to
          deliver at that time, subject to ML&Co.'s right to deliver cash
          instead of common stock of CIBER.

     Upon the acquisition of a STRYPES and upon your sale or other disposition
of a STRYPES before the maturity date, the amount paid or realized be
allocated between the debt instrument and the forward contract based upon
their relative fair market values, as determined on the date of acquisition or
disposition. For these purposes, with respect to acquisitions of STRYPES in
connection with the original issuance thereof, ML&Co. and you agree, under the
terms of the 1983 indenture, to assign $56.78 or 104.91% of the initial
purchase price of a STRYPES to the debt instrument and to assign $2.655 or
4.91% of the initial purchase price of a STRYPES to the forward contract.

     Because the appropriate character and timing of income, gain or loss to
be recognized on a STRYPES is uncertain , you should consult your own tax
advisors concerning the application of the United States Federal income tax
laws to your particular situation and any consequences of the purchase,
ownership and disposition of the STRYPES arising under the laws of any other
taxing jurisdiction.

Our holding company structure may affect your right to participate in any
distribution of assets of any subsidiary

     Since we are a holding company, our right and the right of our creditors,
including you, as a holder of STRYPES, to participate in any distribution of
the assets of any subsidiary upon its liquidation or reorganization or
otherwise is necessarily subject to the prior claims of creditors of the
subsidiary, except to the extent a bankruptcy court may recognize our claims
as a creditor of the subsidiary . In addition, dividends, loans and advances
from certain subsidiaries, including MLPF&S, to us are restricted by net
capital requirements under the Exchange Act and under rules of exchanges and
other regulatory bodies.
    

Other Considerations

   
     We suggest that you reach an investment decision only after carefully
considering the suitability of the STRYPES in the light of your particular
circumstances.
    



<PAGE>


                           MERRILL LYNCH & CO., INC

   
     We are a holding company that, through our U.S. and non-U.S. subsidiaries
and affiliates such as Merrill Lynch, Pierce, Fenner & Smith Incorporated,
Merrill Lynch Government Securities Inc., Merrill Lynch Capital Services,
Inc., Merrill Lynch International, Merrill Lynch Capital Markets Bank Ltd.,
Merrill Lynch Asset Management L.P. and Merrill Lynch Mercury Asset
Management, provides investment, financing, advisory, insurance, and related
products on a global basis, including:

     o    securities brokerage, trading and underwriting;

     o    investment banking, strategic services, including mergers and
          acquisitions and other corporate finance advisory activities;

     o    asset management and other investment advisory and recordkeeping
          services;

     o    trading and brokerage of swaps, options, forwards, futures and other
          derivatives;

     o    securities clearance services;

     o    equity, debt and economic research;

     o    banking, trust and lending services, including mortgage lending and
          related services ; and

     o    insurance sales and underwriting services.

     We provide these products and services to a wide array of clients,
including individual investors, small businesses, corporations, governments,
governmental agencies and financial institutions.

     Our principal executive office is located at World Financial Center,
North Tower, 250 Vesey Street, New York, New York 10281; our telephone number
is (212) 449-1000.

     If you want to find more information about us, please see the sections
entitled "Where You Can Find More Information" and "Incorporation of
Information We File with the SEC" in this prospectus.

     In this prospectus, "ML&Co.", "we", "us" and "our" refer specifically to
Merrill Lynch & Co., Inc., the holding company. ML&Co. is the issuer of the
STRYPES described in this prospectus.
    

<PAGE>

                      RATIO OF EARNINGS TO FIXED CHARGES

   
     In 1998, we acquired the outstanding shares of Midland Walwyn, Inc., in a
transaction accounted for as a pooling-of-interests. The following information
for the fiscal years 1994 through 1997 has been restated as if the two
entities had always been combined.

     The following table sets forth our historical ratios of earnings to fixed
charges for the periods indicated:



                                            Year Ended Last Friday in December
                                        1994    1995      1996     1997     1998
                                        ----    ----      ----     ----     ----

Ratio of earnings to fixed charges(a)   1.2      1.2      1.2      1.2      1.1
- ----------
(a)   The effect of combining Midland Walwyn did not change the ratios reported
      for the fiscal years 1994 through 1997.

     For the purpose of calculating the ratio of earnings to fixed charges,
"earnings" consist of earnings from continuing operations before income taxes
and fixed charges, excluding capitalized interest and preferred security
dividend requirements. "Fixed charges" consist of interest costs, the interest
factor in rentals, amortization of debt issuance costs, preferred security
dividend requirements of subsidiaries, and capitalized interest.
    

<PAGE>

                                  CIBER, INC.

     CIBER is a nationwide provider of information technology consulting,
including application software staff supplementation, management consulting
solutions for "business/IT" problems, package software implementation
services, system life-cycle project responsibility, millennium date change
conversion services and networking procurement and engineering services.
CIBER's revenues are generated from two areas, the CIBER Information Services
("CIS") Division and CIBER's Solutions Consulting Group ("CIBER Solutions").
The CIS Division provides application software development and maintenance
services and, through its CIBR2000 Division, millennium date change solutions.
CIBER Solutions provides services through CIBER's wholly-owned subsidiaries
Spectrum Technology Group, Inc. ("Spectrum"), Business Information Technology,
Inc. ("BIT") and CIBER Network Services, Inc. ("CNSI"). Spectrum provides
information technology consulting solutions to business problems, specifically
in the areas of data warehousing, data modeling and enterprise architecture,
as well as project management and system integration services. BIT specializes
in the implementation and integration of human resource and financial software
application products, plus workflow automation and manufacturing/distribution
software systems, primarily for client/server networks. A substantial portion
of BIT's revenues is derived from assisting clients implementing PeopleSoft,
Inc. software. CNSI provides a wide range of local-area and wide-area network
solutions, from design and procurement to installation and maintenance, with
services including Internet and intranet connectivity.

   
     CIBER is subject to the informational requirements of the Exchange Act.
Accordingly, CIBER files reports, proxy and information statements and other
information with the SEC. Copies of such material can be inspected and copied
at the public reference facilities maintained by the SEC. Reports, proxy and
information statements and other information concerning CIBER may also be
inspected at the offices of the NYSE. The SEC maintains a Web site at
http://www.sec.gov containing reports, proxy and information statements and
other information regarding registrants, including CIBER, that file
electronically with the SEC.

     ML&CO. is not affiliated with CIBER, and CIBER has no obligations with
respect to the STRYPES. This prospectus relates only to the STRYPES offered
hereby and does not relate to the common stock of CIBER. CIBER has filed a
registration statement on Form S-3 with the SEC with respect to the shares of
common stock of CIBER that may be received by a holder of STRYPES on the
maturity date. The prospectus of CIBER constituting a part of such
registration statement includes information relating to CIBER and the common
stock of CIBER, as well as a discussion of certain risk factors relevant to an
investment in common stock of CIBER. The prospectus of CIBER does not
constitute a part of this prospectus nor is it incorporated by reference in
this prospectus.
    

                          DESCRIPTION OF THE STRYPES

   
     ML&Co. issued the STRYPES as a series of Senior Debt Securities issued
under the 1983 indenture, which is more fully described in this prospectus.
The following summary of material provisions of the 1983 indenture does not
purport to be complete and is qualified in its entirety by reference to the
1983 indenture. A copy of the 1983 indenture is filed as an exhibit to the
registration statement of which this prospectus is a part.

     Each STRYPES, which was issued at an issue price of $54.125 (the "Initial
Price"), bears interest at the rate of 7-7/8% of the issue price per annum, or
$4.2623 per annum, from January 30, 1998, or from the most recent Interest
Payment Date to which interest has been paid or provided for, until the
maturity date or the earlier date on which the issue price of the STRYPES is
repaid pursuant to the terms of the STRYPES. Interest on the STRYPES is
payable in cash quarterly in arrears on February 1, May 1, August 1 and
November 1, beginning May 1, 1998, and on the maturity date (each, an
"Interest Payment Date"), to the persons in whose names the STRYPES are
registered at the close of business on the fifteenth calendar day, whether or
not a Business Day, immediately preceding the Interest Payment Date. Interest
on the STRYPES will be computed on the basis of a 360-day year of twelve
30-day months. If an Interest Payment Date falls on a day that is not a
Business Day, the interest payment to be made on the Interest Payment Date
will be made on the next succeeding Business Day with the same force and
effect as if made on the Interest Payment Date, and no additional interest
will accrue as a result of the delayed payment.

     The maturity date of the STRYPES is February 1, 2001. On the maturity
date, ML&Co. will pay and discharge each STRYPES by delivering to the holder
of the STRYPES a number of shares of common stock of CIBER, subject to
ML&Co.'s right to deliver, with respect to all, but not less than all, shares
of common stock of CIBER deliverable on the maturity date, cash with an equal
value. The number of shares that ML&Co. will deliver is referred to in this
prospectus as the "Payment Rate". ML&Co. will determine the Payment Rate
according to the following Payment Rate Formula, which is subject to
adjustment as a result of dilution events described in this prospectus.

     (a)  If the Maturity Price (as defined below) is greater than or equal to
          $91.4713 (the "Threshold Appreciation Price"), the holder of STRYPES
          will receive 0.7692 shares of common stock of CIBER per STRYPES;

     (b)  If the Maturity Price is less than the Threshold Appreciation Price
          but is greater than $70.3625 (the "Initial Appreciation Cap"), the
          holder of STRYPES will receive a fractional share of common stock of
          CIBER per STRYPES so that the value of the fractional share, which
          will be determined based on the Maturity Price, equals the Initial
          Appreciation Cap;

     (c)  If the Maturity Price is less than or equal to the Initial
          Appreciation Cap but is greater than or equal to the Initial Price,
          the holder of STRYPES will receive one share of common stock of
          CIBER per STRYPES;

     (d)  If the Maturity Price is less than the Initial Price but is greater
          than or equal to $51.4188 (the "Downside Protection Threshold
          Price"), the holder of STRYPES will receive a number of shares of
          common stock of CIBER per STRYPES so that the value of the shares,
          which will be determined based on the Maturity Price, equals the
          Initial Price; and

     (e)  If the Maturity Price is less than the Downside Protection Threshold
          Price, the holder of STRYPES will receive 1.0526 shares of common
          stock of CIBER per STRYPES.

The Maturity Price will represent a determination of the value of a share of
common stock of CIBER immediately before the maturity date. You, as a holder
of the STRYPES, cannot assume that the amount you will receive on the maturity
date will be equal to or greater than the issue price of the STRYPES. If the
Maturity Price of the common stock of CIBER is less than the Downside
Protection Threshold Price, the amount you will receive on the maturity date
will be less than the issue price paid for the STRYPES, in which case your
investment in STRYPES will result in a loss. The numbers of shares of common
stock of CIBER per STRYPES specified in clauses (a), (c) and (e) of the
Payment Rate Formula are referred to in this prospectus as the "Share
Components".

     Notwithstanding the foregoing, ML&Co. may, in lieu of delivering shares
of common stock of CIBER, deliver cash in an amount equal to the value of the
number of shares of common stock of CIBER at the Maturity Price, subject to
ML&Co.'s agreement contained in the forward purchase contract to deliver on
the maturity date the form of consideration that the ML&Co. Subsidiary
receives from the contracting stockholder. The right to deliver cash, if
exercised by ML&Co., must be exercised with respect to all shares of common
stock of CIBER otherwise deliverable on the maturity date in payment of all
Outstanding STRYPES. On or before the sixth Business Day before the maturity
date, ML&Co. will notify the Securities Depository and the trustee and publish
a notice in The Wall Street Journal or another daily newspaper of national
circulation stating whether the STRYPES will be paid and discharged with
shares of common stock of CIBER or cash. At the time the notice is published,
the Maturity Price will not have been determined. If ML&Co. delivers shares of
common stock of CIBER, holders of the STRYPES will be responsible for the
payment of any and all brokerage costs upon the subsequent sale of the common
stock.

     The "Maturity Price" means the average Closing Price per share of common
stock of CIBER on the 20 Trading Days immediately before, but not including,
the second Trading Day preceding the maturity date.

     The "Closing Price" of any security on any date of determination means
(1) the closing sale price or, if no closing price is reported, the last
reported sale price, of such security on the NYSE on such date, or (2) if such
security is not listed for trading on the NYSE on any date of determination,
as reported in the composite transactions for the principal United States
securities exchange on which the security is so listed, or (3) if the security
is not so listed on a United States national or regional securities exchange,
as reported by the National Association of Securities Dealers, Inc. Automated
Quotation System, (4) or if the security is not so reported, the last quoted
bid price for the security in the over-the-counter market as reported by the
National Quotation Bureau or similar organization, or (5) if the bid price is
not available, the market value of the security on the date of determination
as determined by a nationally recognized independent investment banking firm
retained for this purpose by ML&Co. In the event that the Payment Rate Formula
is adjusted as described under "-Dilution Adjustments" below, each of the
Closing Prices used in determining the Maturity Price will be similarly
adjusted to derive, for purposes of determining which clause of the Payment
Rate Formula will apply on the maturity date, a Maturity Price stated on a
basis comparable to the Downside Protection Threshold Price, the Initial
Price, the Initial Appreciation Cap and the Threshold Appreciation Price.

         A "Trading  Day" means a day on which the security the Closing  Price
of which is being determined (A) is not suspended from trading on any national
or regional securities  exchange or association or over-the-counter  market at
the close of  business  and (B) has  traded at least once on the  national  or
regional securities exchange or association or over-the-counter market that is
the primary market for the trading of the security.
    

         The term  "Business  Day"  means  any day that is not a  Saturday,  a
Sunday or a day on which the NYSE or banking  institutions  or trust companies
in The City of New York are authorized or obligated by law or executive  order
to close.

<PAGE>


   
Hypothetical Payments at Maturity

     For illustrative purposes only, the following table shows the number of
shares of common stock of CIBER or the amount of cash that a holder of STRYPES
would receive for each STRYPES at various hypothetical Maturity Prices. The
table assumes that there will be no dilution adjustments to the Payment Rate
Formula as described below. Given the Downside Protection Threshold Price of
$51.42, the Initial Price of $54.13, the Initial Appreciation Cap of $70.36
and the Threshold Appreciation Price of $91.47, a STRYPES holder would receive
on the maturity date the following number of shares of common stock of CIBER
or, if ML&Co. elects to pay and discharge the STRYPES with cash, the amount of
cash per STRYPES:


   Maturity Price                                                  
        of                Number of                               
  Common Stock of         Shares of                               
       CIBER         Common Stock of CIBER     Amount of Cash*
   --------------    ---------------------    ---------------

       $45.13                1.0526                 $47.50
    
        49.13                1.0526                  51.71
        51.42                1.0526                  54.13
        52.13                1.0384                  54.13
        54.13                1.0000                  54.13
        59.13                1.0000                  59.13
        64.13                1.0000                  64.13
        70.36                1.0000                  70.36
        74.13                0.9492                  70.36
        79.13                0.8893                  70.36
        84.13                0.8364                  70.36
        91.47                0.7692                  70.36
        94.13                0.7692                  72.40
        99.13                0.7692                  76.25

- -----------
*    The preceding  table does not take into account  interest  payable on the
     STRYPES.  Dollar  amounts in the table have been  rounded to two  decimal
     places and share amounts have been rounded to four decimal places.



Dilution Adjustments

     The Payment Rate Formula is subject to adjustment if CIBER shall:

   
     (1)  pay a stock dividend or make a distribution with respect to common
          stock of CIBER in shares of the stock;

     (2)  subdivide or split the outstanding shares of common stock of CIBER
          into a greater number of shares;

     (3)  combine the outstanding shares of common stock of CIBER into a
          smaller number of shares;

     (4)  issue by reclassification of shares of common stock of CIBER any
          shares of common stock of CIBER;

     (5)  issue rights or warrants to all holders of common stock of CIBER
          entitling them to subscribe for or purchase shares of common stock
          of CIBER at a price per share less than the then current market
          price of the common stock of CIBER, other than rights to purchase
          common stock of CIBER pursuant to a plan for the reinvestment of
          dividends or interest; or

     (6)  pay a dividend or make a distribution to all holders of common stock
          of CIBER of evidences of its indebtedness or other assets, excluding
          any stock dividends or distributions referred to in clause (1) above
          or any cash dividends other than any Extraordinary Cash Dividend (as
          defined below), or issue to all holders of common stock of CIBER
          rights or warrants to subscribe for or purchase any of its
          securities, other than those referred to in clause (5) above.

     In the case of the events referred to in clauses (1), (2), (3) and (4)
above, the Payment Rate Formula shall be adjusted so that each holder of any
STRYPES shall thereafter be entitled to receive, upon payment and discharge of
the STRYPES, the number of shares of common stock of CIBER or, in the case of
a reclassification referred to in clause (4) above, the number of shares of
other common stock of CIBER issued pursuant to the reclassification, which the
holder would have owned or been entitled to receive immediately following any
event had the STRYPES been paid and discharged immediately before the event in
clauses (1), (2), (3) and (4) or any record date with respect to the event.

     In the case of the event referred to in clause (5) above, the Payment
Rate Formula shall be adjusted by multiplying each of the Share Components in
the Payment Rate Formula in effect immediately before the date of issuance of
the rights or warrants referred to in clause (5) above by a fraction, (A) the
numerator of which shall be the number of shares of common stock of CIBER
outstanding on the date of issuance of the rights or warrants, immediately
before the issuance, plus the number of additional shares of common stock of
CIBER offered for subscription or purchase pursuant to the rights or warrants,
and (B) the denominator of which shall be the number of shares of common stock
of CIBER outstanding on the date of issuance of the rights or warrants,
immediately before the issuance, plus the number of additional shares of
common stock of CIBER which the aggregate offering price of the total number
of shares of common stock of CIBER so offered for subscription or purchase
pursuant to the rights or warrants would purchase at the current market price,
which shall be determined by multiplying the total number of shares by the
exercise price of the rights or warrants and dividing the product so obtained
by the current market price. The current market price shall be the average
Closing Price per share of common stock of CIBER on the 20 Trading Days
immediately before the date the rights or warrants are issued, subject to
certain adjustments. To the extent that shares of common stock of CIBER are
not delivered after the expiration of the rights or warrants, the Payment Rate
Formula shall be readjusted to the Payment Rate Formula which would then be in
effect had the adjustments for the issuance of the rights or warrants been
made upon the basis of delivery of only the number of shares of common stock
of CIBER actually delivered.

     In the case of the event referred to in clause (6) above, the Payment
Rate Formula shall be adjusted by multiplying each of the Share Components in
the Payment Rate Formula in effect on the record date referred to below by a
fraction, (A) the numerator of which shall be the market price per share of
the common stock of CIBER on the record date for the determination of
stockholders entitled to receive the dividend or distribution or the rights or
warrants referred to in clause (6) above, and(B) the denominator of which
shall be the market price per share of common stock of CIBER less the fair
market value as of the record date of the portion of the assets or evidences
of indebtedness to be distributed or of the subscription rights or warrants
applicable to one share of common stock of CIBER. The market price in the
above fraction shall be the average Closing Price per share of common stock of
CIBER on the 20 Trading Days immediately before the record date, subject to
certain adjustments. The Board of Directors of ML&Co. shall determine the fair
market value in the above fraction; their determination of the fair market
value shall be conclusive and described in a resolution adopted with respect
thereto.

     An "Extraordinary Cash Dividend" means, with respect to any consecutive
12-month period, the amount, if any, by which the aggregate amount of all cash
dividends on the common stock of CIBER occurring in the 12-month period,
excluding any the dividends occurring in the period for which a prior
adjustment to the Payment Rate Formula was previously made, exceeds on a per
share basis 10% of the average of the Closing Prices per share of the common
stock of CIBER over the 12-month period. All adjustments to the Payment Rate
Formula will be calculated to the nearest 1/10,000th of a share of common
stock of CIBER or, if there is not a nearest 1/10,000th of a share, to the
next lower 1/10,000th of a share. No adjustment in the Payment Rate Formula
shall be required unless the adjustment would require an increase or decrease
of at least one percent therein; provided, however, that any adjustments which
by reason of the foregoing are not required to be made shall be carried
forward and taken into account in any subsequent adjustment. If an adjustment
is made to the Payment Rate Formula as described above, an adjustment will
also be made to the Maturity Price solely to determine which clause of the
Payment Rate Formula will apply on the maturity date. The required adjustment
to the Maturity Price will be made by multiplying each of the Closing Prices
used in determining the Maturity Price by a fraction, the numerator of which
shall be the Share Component in clause (c) of the Payment Rate Formula
immediately after the adjustment described above, and the denominator of which
shall be the Share Component in clause (c) of the Payment Rate Formula
immediately before the adjustment described above. Each adjustment to the
Payment Rate Formula shall be made successively.

     In the event of a "Reorganization Event", which is

     (A)  any consolidation or merger of CIBER, or any surviving entity or
          subsequent surviving entity of CIBER (a "CIBER Successor"), with or
          into another entity, other than a consolidation or merger in which
          CIBER is the continuing corporation and in which the common stock of
          CIBER outstanding immediately before the consolidation or merger is
          not exchanged for cash, securities or other property of CIBER or
          another corporation,
    

     (B)  any sale, transfer, lease or conveyance to another entity of the
          property of CIBER or any CIBER Successor as an entirety or
          substantially as an entirety,

   
     (C)  any statutory exchange of securities of CIBER or any CIBER Successor
          with another entity, other than in connection with a merger or
          acquisition, or

     (D)  any liquidation, dissolution, winding up or bankruptcy of CIBER or
          any CIBER Successor,

the Payment Rate Formula used to determine the amount payable on the maturity
date for each STRYPES will be adjusted to provide that each holder of STRYPES
will receive cash on the maturity date for each STRYPES. The holder will
receive cash in an amount equal to

     (a)  if the Transaction Value (as defined below) is greater than or equal
          to the Threshold Appreciation Price, 0.7692, subject to adjustment
          in the same manner and to the same extent as the Share Components in
          the Payment Rate Formula are adjusted as described above, multiplied
          by the Transaction Value,

     (b)  if the Transaction Value is less than the Threshold Appreciation
          Price but greater than the Initial Appreciation Cap, the Initial
          Appreciation Cap,

     (c)  if the Transaction Value is less than or equal to the Initial
          Appreciation Cap but is greater than or equal to the Initial Price,
          the Transaction Value,

     (d)  if the Transaction Value is less than the Initial Price but is
          greater than or equal to the Downside Protection Threshold Price,
          the Initial Price and

     (e)  if the Maturity Price is less than the Downside Protection Threshold
          Price, 1.0526, subject to adjustment in the same manner and to the
          same extent as the Share Components in the Payment Rate Formula are
          adjusted as described above, multiplied by the Transaction Value.

     "Transaction Value" means (1) for any cash received in any the
Reorganization Event, the amount of cash received per share of common stock of
CIBER, (2) for any property other than cash or securities received in any
Reorganization Event, an amount equal to the market value on the third
Business Day preceding the maturity date of the property received per share of
common stock of CIBER as determined by a nationally recognized independent
investment banking firm retained for this purpose by ML&Co. and (3) for any
securities received in any Reorganization Event, an amount equal to the
average Closing Price per unit of the securities on the 20 Trading Days
immediately before, but not including, the second Trading Day preceding the
maturity date multiplied by the number of the securities, subject to
adjustment on a basis consistent with the adjustment provisions described
above, received for each share of common stock of CIBER; provided, however, if
one or more adjustments to the Payment Rate Formula shall have become
effective before the effective date for the Reorganization Event, then the
Transaction Value determined in accordance with the foregoing shall be
adjusted by multiplying the Transaction Value by the Share Component in clause
(c) of the Payment Rate Formula immediately before the effective date for the
Reorganization Event. Notwithstanding the foregoing, if any Marketable
Securities (as defined below) are received by holders of common stock of CIBER
in the Reorganization Event, then in lieu of delivering cash as provided
above, ML&Co. may at its option deliver a proportional amount of the
Marketable Securities. If ML&Co. elects to deliver Marketable Securities,
holders of the STRYPES will be responsible for the payment of any and all
brokerage and other transactional costs upon the sale of the securities.
    

     "Marketable Securities" means any securities listed on a U.S. national
securities exchange or reported by NASDAQ.

   
     No adjustments will be made for other events, such as offerings of common
stock of CIBER by CIBER for cash or in connection with acquisitions. Likewise,
no adjustments will be made for any sales of common stock of CIBER by any
principal stockholder of CIBER, including the contracting stockholder.

     ML&Co. is required, within ten Business Days following the occurrence of
an event that requires an adjustment to the Payment Rate Formula or, if ML&Co.
is not aware of the occurrence of an event, as soon as practicable after
becoming so aware, to provide written notice to the trustee and to the holders
of the STRYPES of the occurrence of the event and a statement in reasonable
detail setting forth the adjusted Payment Rate Formula and the method by which
the adjustment to the Payment Rate Formula was determined; provided that, in
respect of any adjustment to the Maturity Price, the notice will only disclose
the factor by which each of the Closing Prices used in determining the
Maturity Price is to be multiplied in order to determine the Payment Rate on
the maturity date. Until the maturity date, the Payment Rate itself cannot be
determined.
    

Securities Depository

   
     Description of the Global Securities

     The STRYPES are represented by one or more fully registered global
securities. Each global security has been deposited with, or on behalf of, The
Depository Trust Company or DTC (DTC, together with any successor thereto,
being a "depositary"), as depositary, registered in the name of Cede & Co.
(DTC's partnership nominee). Unless and until it is exchanged in whole or in
part for STRYPES in definitive form , no global security may be transferred
except as a whole by the depositary to a nominee of the depositary or by a
nominee of the depositary to the depositary or another nominee of the
depositary or by the depositary or any nominee to a successor of the
depositary or a nominee of the successor.

     So long as DTC, or its nominee, is a registered owner of a global
security, DTC or its nominee, as the case may be, will be considered the sole
owner or holder of the STRYPES represented by a global security for all
purposes under the 1983 indenture. Except as provided below, the beneficial
owners of the STRYPES represented by a global security are not entitled to
have the STRYPES represented by the global security registered in their names,
will not receive or be entitled to receive physical delivery of the STRYPES in
definitive form and are not considered the owners or holders under the 1983
indenture, including for purposes of receiving any reports delivered by ML&Co.
or the trustee pursuant to the 1983 indenture. Accordingly, each person owning
a beneficial interest in a global security must rely on the procedures of DTC
and, if the person is not a participant of DTC on the procedures of the
participant through which the person owns its interest, to exercise any rights
of a holder under the 1983 indenture. ML&Co. understands that under existing
industry practices, in the event that ML&Co. requests any action of holders or
that an owner of a beneficial interest in a global security desires to give or
take any action which a holder is entitled to give or take under the 1983
indenture, DTC would authorize the participants holding the relevant
beneficial interests to give or take action, and the participants would
authorize beneficial owners owning through the participants to give or take
the action or would otherwise act upon the instructions of beneficial owners.
Conveyance of notices and other communications by DTC to participants, by
participants to indirect participants and by participants and indirect
participants to beneficial owners are governed by arrangements among them,
subject to any statutory or regulatory requirements as may be in effect from
time to time.

     DTC Procedures

     The following is based on information furnished by DTC:

     DTC is the securities depositary for the STRYPES. The STRYPES have been
issued as fully registered securities registered in the name of Cede & Co.
(DTC's partnership nominee). One or more fully registered global securities
have been issued for the STRYPES in the aggregate principal amount of such
issue, and has been deposited with DTC.

     DTC is a limited-purpose trust company organized under the New York
Banking Law, a "banking organization" within the meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing corporation"
within the meaning of the New York Uniform Commercial Code, and a "clearing
agency" registered pursuant to the provisions of Section 17A of the 1934 Act.
DTC holds securities that its participants deposit with DTC. DTC also
facilitates the settlement among participants of securities transactions ,
such as transfers and pledges, in deposited securities through electronic
computerized book-entry changes in participants' accounts , thereby
eliminating the need for physical movement of securities certificates. Direct
participants of DTC include securities brokers and dealers, banks, trust
companies, clearing corporations and certain other organizations. DTC is owned
by a number of its direct participants and by the NYSE, the AMEX and the
National Association of Securities Dealers, Inc. Access to the DTC's system is
also available to others such as securities brokers and dealers, banks and
trust companies that clear through or maintain a custodial relationship with a
direct participant, either directly or indirectly. The rules applicable to DTC
and its participants are on file with the SEC.

     Purchases of STRYPES under DTC's system must be made by or through direct
participants, which will receive a credit for the STRYPES on DTC's records.
The ownership interest of each beneficial owner is in turn to be recorded on
the records of direct and indirect participants. Beneficial owners will not
receive written confirmation from DTC of their purchase, but beneficial owners
are expected to receive written confirmations providing details of the
transaction, as well as periodic statements of their holdings, from the direct
participants or indirect participants through which such beneficial owner
entered into the transaction. Transfers of ownership interests in the STRYPES
are to be accomplished by entries made on the books of participants acting on
behalf of beneficial owners.

     To facilitate subsequent transfers, all STRYPES deposited with DTC are
registered in the name of DTC's partnership nominee, Cede & Co. The deposit of
STRYPES with DTC and their registration in the name of Cede & Co. effect no
change in beneficial ownership. DTC has no knowledge of the actual beneficial
owners of the STRYPES; DTC's records reflect only the identity of the direct
participants to whose accounts such STRYPES are credited, which may or may not
be the beneficial owners. The participants are responsible for keeping account
of their holdings on behalf of their customers.

     Conveyance of notices and other communications by DTC to direct
participants, by direct participants to indirect participants, and by direct
and indirect participants to beneficial owners are governed by arrangements
among them, subject to any statutory or regulatory requirements as may be in
effect from time to time.

     Neither DTC nor Cede & Co. will consent or vote with respect to the
STRYPES. Under its usual procedures, DTC mails an omnibus proxy to ML&Co. as
soon as possible after the applicable record date. The omnibus proxy assigns
Cede & Co.'s consenting or voting rights to those direct participants
identified in a listing attached to the omnibus proxy to whose accounts the
STRYPES are credited on the record date.

     Principal, premium, if any, and/or interest, if any, payments on the
STRYPES will be made in immediately available funds to DTC. DTC's practice is
to credit direct participants' accounts on the applicable payment date in
accordance with their respective holdings shown on the depositary's records
unless DTC has reason to believe that it will not receive payment on such
date. Payments by participants to beneficial owners will be governed by
standing instructions and customary practices, as is the case with securities
held for the accounts of customers in bearer form or registered in "street
name", and will be the responsibility of such participant and not of DTC, the
trustee or ML&Co., subject to any statutory or regulatory requirements as may
be in effect from time to time. Payment of principal, premium, if any, and/or
interest, if any, to DTC is the responsibility of ML&Co. or the trustee,
disbursement of such payments to direct participants is the responsibility of
DTC, and disbursement of such payments to the beneficial owners is the
responsibility of direct and indirect participants.

     Exchange for Certificated Securities

     If

     (a)  the depositary is at any time unwilling or unable to continue as
          depositary and a successor depositary is not appointed by ML&Co.
          within 60 days,

     (b)  ML&Co. executes and delivers to the trustee a company order to the
          effect that the global securities shall be exchangeable , and

     (c)  an Event of Default under the 1983 indenture has occurred and is
          continuing with respect to the STRYPES,

the global securities will be exchangeable for STRYPES in definitive form of
like tenor and of an equal aggregate principal amount. The definitive STRYPES
will be registered in such name or names as the depositary shall instruct the
trustee. It is expected that such instructions may be based upon directions
received by the depositary from participants with respect to ownership of
beneficial interests in the global securities.

     In addition, ML&Co. may decide to discontinue use of the system of
book-entry transfers through the depositary. In that event, STRYPES in
definitive form will be printed and delivered.

     The information in this section concerning DTC and DTC's system has been
obtained from sources that ML&Co. believes to be reliable, but ML&Co. takes no
responsibility for its accuracy.
    


Fractional Shares

   
     No fractional shares of common stock of CIBER will be delivered if ML&Co.
pays and discharges the STRYPES by delivering shares of common stock of CIBER.
In lieu of any fractional share otherwise deliverable in respect of all
STRYPES of any holder on the maturity date, the holder shall be entitled to
receive an amount in cash equal to the value of the fractional share at the
Maturity Price.


No Redemption, Sinking Fund or Payment  Before Maturity

     The STRYPES are not subject to redemption before the maturity date at the
option of ML&Co. and do not contain sinking fund or other mandatory redemption
provisions. The STRYPES are not subject to payment before the maturity date at
the option of the holder.
    


Ranking

   
     The STRYPES are unsecured obligations and rank equally with all other
unsecured and unsubordinated indebtedness of ML&Co.

     There are no contractual restrictions on the ability of ML&Co. or its
subsidiaries to incur additional secured or unsecured debt. However,
borrowings by certain subsidiaries, including MLPF&S, are restricted by net
capital requirements under the Exchange Act and under rules of exchanges and
other regulatory bodies.
    


Listing

   
            The STRYPES are listed on the NYSE under the trading symbol "BOB".

                                  OTHER TERMS

     ML&Co. issued the STRYPES as a series of senior debt securities under the
1983 indenture, dated as of April 1, 1983, as amended and restated, between
ML&Co. and The Chase Manhattan Bank, as trustee. A copy of the 1983 indenture
is filed as an exhibit to the registration statement relating to the STRYPES
of which this prospectus is a part. The following summaries of the material
provisions of the 1983 indenture are not complete and are subject to, and
qualified in their entirety by reference to, all provisions of the 1983
indenture, including the definitions of terms in the 1983 indenture.

     ML&Co. may issue series of senior debt securities from time to time under
the 1983 indenture, without limitation as to aggregate principal amount, in
one or more series and upon terms as ML&Co. may establish under the provisions
of the 1983 indenture.

     The 1983 indenture and the STRYPES are governed by and construed in
accordance with the laws of the State of New York.

     ML&Co. may issue senior debt securities with terms different from those
of senior debt securities previously issued, and issue additional senior debt
securities of a previously issued series of senior debt securities.

     The senior debt securities are unsecured and rank equally with all other
unsecured and unsubordinated indebtedness of ML&Co. However, because ML&Co. is
a holding company, the rights of ML&Co. and its creditors, including the
holders of senior debt securities, to participate in any distribution of the
assets of any subsidiary upon its liquidation or reorganization or otherwise
are necessarily subject to the prior claims of creditors of the subsidiary,
except to the extent that a bankruptcy court may recognize claims of ML&Co.
itself as a creditor of the subsidiary. In addition, dividends, loans and
advances from certain subsidiaries, including MLPF&S, to ML&Co. are restricted
by net capital requirements under the Exchange Act, and under rules of
exchanges and other regulatory bodies.

Limitations Upon Liens

     ML&Co. may not, and may not permit any majority-owned subsidiary to,
create, assume, incur or permit to exist any indebtedness for borrowed money
secured by a pledge, lien or other encumbrance, other than those liens
specifically permitted by the 1983 indenture, on the Voting Stock owned
directly or indirectly by ML&Co. of any majority-owned subsidiary, other than
a majority-owned subsidiary which, at the time of the incurrence of the
secured indebtedness, has a net worth of less than $3,000,000, unless the
outstanding senior debt securities are secured equally and ratably with the
secured indebtedness.

     "Voting Stock" is defined in the 1983 Indenture as the stock of the class
or classes having general voting power under ordinary circumstances to elect
at least a majority of the board of directors, managers or trustees of a
corporation provided that, for the purposes of the 1983 Indenture, stock that
carries only the right to vote conditionally on the occurrence of an event is
not considered voting stock whether or not the event has happened.

Limitation  on Disposition of Voting Stock of, and Merger and Sale of Assets by,
MLPF&S

     ML&Co. may not sell, transfer or otherwise dispose of any Voting Stock of
MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of its
Voting Stock, unless, after giving effect to any such transaction, MLPF&S
remains a Controlled Subsidiary.

     "Controlled Subsidiary" is defined in the 1983 indenture to mean a
corporation more than 80% of the outstanding shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

     In addition, ML&Co. may not permit MLPF&S to:

     o    merge or consolidate, unless the surviving company is a Controlled
          Subsidiary, or
    

     o    convey or transfer its properties and assets substantially as an
          entirety, except to one or more Controlled Subsidiaries.



<PAGE>


   
Merger and Consolidation

     ML&Co. may consolidate or merge with or into any other corporation and
ML&Co. may sell, lease or convey all or substantially all of its assets to any
corporation, provided that:

     o    the resulting corporation, if other than ML&Co., is a corporation
          organized and existing under the laws of the United States of
          America or any U.S. state and assumes all of ML&Co.'s obligations
          to:

     o    pay any amounts due and payable or deliverable with respect to all
          the Senior Debt Securities; and

     o    perform and observe all of ML&Co.'s obligations under the 1983
          indenture, and

     o    ML&Co. or the successor corporation, as the case may be, is not,
          immediately after any consolidation or merger, in default under the
          1983 indenture.
    

Modification and Waiver

   
     ML&Co. and the trustee may modify and amend the 1983 indenture with the
consent of holders of at least 66 2/3% in principal amount of each outstanding
series of debt securities affected. However, without the consent of each
holder of any outstanding debt security affected, no amendment or modification
to any Indenture may:

     o    change the stated maturity date of the principal of, or any
          installment of interest or Additional Amounts payable on, any senior
          debt security or any premium payable on redemption, or change the
          redemption price;

     o    reduce the principal amount of, or the interest or Additional
          Amounts payable on , any senior debt security or reduce the amount
          of principal which could be declared due and payable before the
          stated maturity date;

     o    change the place or currency of any payment of principal or any
          premium, interest or Additional Amounts payable on any senior debt
          security;

     o    impair the right to institute suit for the enforcement of any
          payment on or with respect to any senior debt security;

     o    reduce the percentage in principal amount of the outstanding senior
          debt securities of any series, the consent of whose holders is
          required to modify or amend the 1983 indenture; or

     o    modify the foregoing requirements or reduce the percentage of
          outstanding senior debt securities necessary to waive any past
          default to less than a majority.

     No modification or amendment of ML&Co.'s Subordinated Indenture or any
Subsequent Indenture for subordinated debt securities may adversely affect the
rights of any holder of ML&Co.'s senior indebtedness without the consent of
each holder affected. The holders of at least a majority in principal amount
of outstanding senior debt securities of any series may, with respect to that
series, waive past defaults under the 1983 indenture and waive compliance by
ML&Co. with provisions in the 1983 indenture, except as described under
"--Events of Default".
    



<PAGE>


Events of Default

   
     Each of the following will be Events of Default with respect to senior
debt securities of any series:

     o    default in the payment of any interest or Additional Amounts payable
          when due and continuing for 30 days;

     o    default in the payment of any principal or premium when due;

     o    default in the deposit of any sinking fund payment, when due;

     o    default in the performance of any other obligation of ML&Co.
          contained in the 1983 indenture for the benefit of that series or in
          the senior debt securities of that series, continuing for 60 days
          after written notice as provided in the 1983 indenture;

     o    specified events in bankruptcy, insolvency or reorganization of
          ML&Co.; and

     o    any other Event of Default provided with respect to senior debt
          securities of that series which are not inconsistent with the 1983
          indenture.

If an Event of Default occurs and is continuing for any series of senior debt
securities, other than as a result of the bankruptcy, insolvency or
reorganization of ML&Co., the trustee or the holders of at least 25% in
principal amount of the outstanding senior debt securities of that series may
declare all amounts, or any lesser amount provided for in the senior debt
securities, due and payable or deliverable immediately. At any time after a
declaration of acceleration has been made with respect to senior debt
securities of any series but before the trustee has obtained a judgment or
decree for payment of money, the holders of a majority in principal amount of
the outstanding senior debt securities of that series may rescind any
declaration of acceleration and its consequences, if all payments due, other
than those due as a result of acceleration, have been made and all Events of
Default have been remedied or waived.

     The holders of a majority in principal amount or aggregate issue price of
the outstanding debt securities of that series may waive any Event of Default
with respect to that series, except a default:

     o    in the payment of any amounts due and payable or deliverable under
          the debt securities of that series; or

     o    in respect of an obligation or provision of any Indenture which
          cannot be modified under the terms of that Indenture without the
          consent of each holder of each series of debt securities affected.

     The holders of a majority in principal amount of the outstanding senior
debt securities of a series may direct the time, method and place of
conducting any proceeding for any remedy available to the trustee or
exercising any trust or power conferred on the trustee with respect to those
senior debt securities, provided that any direction shall not be in conflict
with any rule of law or the 1983 indenture. Before proceeding to exercise any
right or power under the 1983 indenture at the direction of the holders, the
trustee shall be entitled to receive from the holders reasonable security or
indemnification against the costs, expenses and liabilities which might be
incurred by it in complying with any direction.

     The STRYPES and other series of senior debt securities issued under the
1983 indenture do not have the benefit of any cross-default provisions with
other indebtedness of ML&Co.

     ML&Co. is required to furnish to the trustee annually a statement as to
the fulfillment by ML&Co. of all of its obligations under the 1983 indenture .
    

<PAGE>

             CERTAIN ARRANGEMENTS WITH THE CONTRACTING STOCKHOLDER

   
     Pursuant to the forward purchase contract, the contracting stockholder is
obligated to deliver to the ML&Co. Subsidiary on the Business Day immediately
preceding the maturity date a number of shares of common stock of CIBER equal
to the number required by ML&Co. to pay and discharge all of the STRYPES,
including any STRYPES issued pursuant to the over-allotment option granted by
ML&Co. to the Underwriter. In lieu of delivering shares of common stock of
CIBER on the Business Day immediately preceding the maturity date, the
contracting stockholder has the right to satisfy his obligation under the
forward purchase contract by delivering cash in an amount equal to the value
of the number of shares of common stock of CIBER at the Maturity Price. The
right to deliver cash, if exercised by the contracting stockholder, must be
exercised with respect to all shares of common stock of CIBER then deliverable
pursuant to the forward purchase contract. Under the forward purchase
contract, ML&Co. has agreed to pay and discharge the STRYPES by delivering to
the holders thereof on the maturity date the form of consideration that the
ML&Co. Subsidiary receives from the contracting stockholder.

     The consideration to be paid by the ML&Co. Subsidiary under the forward
purchase contract is $71,315,820 in the aggregate which was paid to the
contracting stockholder on January 30, 1998. No other consideration is payable
by the ML&Co. Subsidiary to the contracting stockholder in connection with its
acquisition of the common stock of CIBER or the performance of the forward
purchase contract by the contracting stockholder. ML&Co. has agreed with the
contracting stockholder that, without the prior consent of the contracting
stockholder, it will not amend, modify or supplement the 1983 indenture or the
STRYPES in any respect that would adversely affect any obligation of the
contracting stockholder under the forward purchase contract, including,
without limitation, increasing the consideration that the contracting
stockholder is obligated to deliver pursuant to the forward purchase contract.

     Until such time, if any, as the contracting stockholder shall have
delivered shares of common stock of CIBER to the ML&Co. Subsidiary pursuant to
the terms of the forward purchase contract, the contracting stockholder will
retain all ownership rights with respect to the common stock of CIBER held by
him. The ownership rights include, among others, voting rights and rights to
receive any dividends or other distributions .

     The contracting stockholder has no duties or obligations with respect to
the STRYPES or amounts to be paid to holders thereof, including any duty or
obligation to take the needs of ML&Co. or holders of the STRYPES into
consideration in determining whether to deliver shares of common stock of
CIBER or cash or for any other reason. The forward purchase contract among
ML&Co., the ML&Co. Subsidiary, The Bank of New York, as agent for and on
behalf of the ML&Co. Subsidiary, and the contracting stockholder is a
commercial transaction and does not create any rights in, or for the benefit
of, any third party, including any holder of STRYPES.

     To the extent that the contracting stockholder does not perform under the
forward purchase contract, ML&Co. will be required to otherwise acquire shares
of common stock of CIBER for delivery to holders of the STRYPES on the
maturity date, unless, in the case of shares deliverable on the maturity date,
it elects to exercise its option to deliver cash with an equal value.

     Merrill Lynch Capital Corporation, a wholly owned subsidiary of ML&Co.,
has entered into a secured loan agreement with Bobby G. Stevenson, as trustee
of the 1998 Bobby G. Stevenson Revocable Trust. Under the loan agreement, Mr.
Stevenson, as trustee of the 1998 Bobby G. Stevenson Revocable Trust, will
borrow approximately $20,567,930 for a term of three years.

                      WHERE YOU CAN FIND MORE INFORMATION

     We file reports, proxy statements and other information with the SEC. Our
SEC filings are also available over the Internet at the SEC's web site at
http://www.sec.gov. You may also read and copy any document we file by
visiting the SEC's public reference rooms in Washington, D.C., New York, New
York, and Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further
information about the public reference rooms. You may also inspect our SEC
reports and other information at the New York Stock Exchange, Inc., 20 Broad
Street, New York, New York 10005.

     We have filed a registration statement on Form S-3 with the SEC covering
the STRYPES and other securities. For further information on ML&Co. and the
STRYPES, you should refer to our registration statement and its exhibits. This
prospectus summarizes material provisions of contracts and other documents
that we refer you to. Because the prospectus may not contain all the
information that you may find important, you should review the full text of
these documents. We have included copies of these documents as exhibits to our
registration statement of which this prospectus is a part.
    

<PAGE>

   
               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

     The SEC allows us to incorporate by reference the information we file
with them, which means:

     o    incorporated documents are considered part of the prospectus;

     o    we can disclose important information to you by referring you to
          those documents; and

     o    information that we file with the SEC will automatically update and
          supersede this incorporated information.

     We  incorporate  by reference the  documents  listed below which were
filed with the SEC under the Exchange Act:

     o    annual report on Form 10-K for the year ended December 25, 1998; and

     o    current reports on Form 8-K dated December 28, 1998, January 19, 
          1999, February 17, 1999, February 18, 1999, February 22, 1999,
          February 23, 1999 and March 26, 1999.

     We also incorporate by reference each of the following documents that we
will file with the SEC after the date of this prospectus until this offering
is completed or after the date of this initial registration statement and
before the effectiveness of the registration statement:

     o    reports filed under Sections 13(a) and (c) of the Exchange Act;

     o    definitive proxy or information statements filed under Section 14 of
          the Exchange Act in connection with any subsequent stockholders'
          meeting; and

     o    any reports filed under Section 15(d) of the Exchange Act.

     You should rely only on information contained or incorporated by
reference in this prospectus. We have not, and MLPF&S has not, authorized any
other person to provide you with different information. If anyone provides you
with different or inconsistent information, you should not rely on it. We are
not, and MLPF&S is not, making an offer to sell these securities in any
jurisdiction where the offer or sale is not permitted.

     You should assume that the information appearing in this prospectus is
accurate as of the date of this prospectus only. Our business, financial
condition and results of operations may have changed since that date.

     You may request a copy of any filings referred to above (excluding
exhibits), at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan, Jr., Corporate Secretary's Office, Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.

                             PLAN OF DISTRIBUTION

     This prospectus has been prepared in connection with secondary sales of
the STRYPES and is to be used by MLPF&S when making offers and sales related
to market-making transactions in the STRYPES.

     MLPF&S may act as principal or agent in these market-making transactions.

     The STRYPES may be offered on the NYSE or off the exchange in negotiated
transactions or otherwise.

     The distribution of the STRYPES will conform to the requirements set
forth in the applicable sections of Rule 2720 of the Conduct Rules of the
NASD.
    

                                    EXPERTS

   
         The consolidated financial statements and the related financial
statement schedule incorporated in this prospectus by reference from the
Annual Report on Form 10-K of Merrill Lynch & Co., Inc. and subsidiaries have
been audited by Deloitte & Touche LLP, independent auditors, as stated in
their reports (which express an unqualified opinion and which report on the
consolidated financial statements includes an explanatory paragraph
for the change in accounting method for certain internal-use software
development costs), which are incorporated herein by reference, and have been
so incorporated in reliance upon the reports of such firm given upon their
authority as experts in accounting and auditing.

         
    


<PAGE>
   
The information in this prospectus is not complete and may be changed. We may
not sell these securities until the registration statement filed with the
Securities and Exchange Commission is effective. This prospectus is not an
offer to sell these securities and it is not soliciting an offer to buy these
securities in any state where the offer or sale is not permitted.
    

                             Subject to Completion
   
                  Preliminary Prospectus dated March 29, 1999
    

PROSPECTUS
                           Merrill Lynch & Co., Inc.
               Nikkei 225 Market Index Target-Term Securities(R)
                             due September 21, 2005
                             "MITTS(R) Securities"
                         $10 principal amount per unit


     Merrill Lynch & Co., Merrill Lynch, Pierce, Fenner & Smith Incorporated,
our wholly-owned subsidiary, will use this prospectus when making offers and
sales related to market-making transactions in the following securities.


<TABLE>
<CAPTION>
The MITTS Securities:                              Payment at Maturity:      

<S>                                                         <C>
   
o  100% principal protection at maturity                    o  On the maturity date, for each unit of MITTS
o  No payments  before the maturity date                       Securities you own, we will pay you an amount
o Senior unsecured debt securities of ML & Co.                 equal to the sum of the principal amount of
o  Linked to the value of the Nikkei 225 Index                 percentage increase in the value of the index
   that measures the composite price performance               as described in this prospectus.
   of selected Japanese stocks.                             o  You will receive no less than the principal
o  The MITTS Securities are listed on the American             amount of your MITTS Securities. 
   Stock Exchange under the symbol "MLN"
    
</TABLE>

               Investing in the MITTS Securities involves risks.
                    See "Risk Factors" beginning on page 5.


     Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if
this prospectus is truthful or complete. Any representation to the contrary is
a criminal offense.

     The sale price of the MITTS Securities will be the prevailing market price
at the time of sale.


                                ----------------

                              Merrill Lynch & Co.
                                ----------------

               The date of this prospectus is____________, 1999.

"MITTS" and "Market Index Target-Term Securities" are registered service marks
owned by Merrill Lynch & Co., Inc.


<PAGE>
                               TABLE OF CONTENTS

                                                                           Page

RISK FACTORS.................................................................2

MERRILL LYNCH & CO., INC.....................................................6

RATIO OF EARNINGS TO FIXED CHARGES...........................................6

DESCRIPTION OF THE MITTS SECURITIES..........................................7

THE NIKKEI 225 INDEX........................................................14

OTHER TERMS.................................................................16

   
PROJECTED PAYMENT SCHEDULE..................................................19
    

WHERE YOU CAN FIND MORE INFORMATION.........................................20

INCORPORATION OF INFORMATION WE FILE WITH THE SEC...........................20

PLAN OF DISTRIBUTION........................................................21

EXPERTS.....................................................................22




<PAGE>



                                  RISK FACTORS

     Your investment in the MITTS Securities will involve risks. You should
carefully consider the following discussion of risks before deciding whether an
investment in the MITTS Securities is suitable for you.

You may not earn a return on your investment

     You should be aware that at maturity we will pay you no more than $10 for
each unit of the MITTS Securities you own if the average value of the index
over five trading days shortly before the maturity date is less than 14,152.95,
the value of the index on the date the MITTS Securities were priced. This will
be true even if, at some time during the life of the MITTS Securities, the
value of the index was higher than 14,152.95 but later falls below 14,152.95.

Your yield may be lower than the yield on a standard debt security of
comparable maturity

     The amount we pay you at maturity may be less than the return you could
earn on other investments. Your yield may be less than the yield you would earn
if you bought a standard senior non-callable Merrill Lynch & Co., Inc. debt
security with the same maturity date. Your investment may not reflect the full
opportunity cost to you when you take into account factors that affect the time
value of money.

Your return will not reflect the return of owning the stocks included in the
Index

     Your return will not reflect the return you would realize if you actually
owned the stocks underlying the index and received the dividends paid on those
stocks. This is because the value of the index is calculated by reference to
the prices of the common stocks included in the index without taking into
consideration the value of dividends paid on those stocks.

Your return may be affected by currency exchange rates

     Although the stocks included in the index are traded in Japanese yen and
the MITTS Securities are denominated in U.S. dollars, we will not adjust the
amount payable at maturity for the currency exchange rate in effect at the
maturity of the MITTS Securities. Any amount in addition to the principal
amount of each unit payable to you at maturity is based solely upon the
percentage increase in the index. Changes in the currency exchange rate,
however, may reflect changes in the Japanese economy that may affect the value
of the index and the MITTS Securities.

Your return may be affected by factors affecting the value of Japanese stocks

     Because the underlying stocks included in the index have been issued by
Japanese companies, the return on your MITTS Securities will be affected by
risks relating to an investment in Japanese equity securities. The Japanese
securities markets may be more volatile than U.S. or other securities markets
and may be affected by market developments in different ways than U.S. or other
securities markets. Direct or indirect government intervention to stabilize the
Japanese securities markets and cross-shareholdings in Japanese companies on
those markets may affect prices and volume of trading on those markets. Also,
there is generally less publicly available information about Japanese companies
than about those U.S. companies that are subject to the reporting requirements
of the U.S. Securities and Exchange Commission, and Japanese companies are
subject to accounting, auditing and financial reporting standards and
requirements that differ from those applicable to U.S. reporting companies.

     Securities prices in Japan are subject to political, economic, financial
and social factors that apply in Japan. In addition, recent or future changes
in the Japanese government's economic and fiscal policies, the possible
imposition of, or changes in, currency exchange laws or other Japanese laws or
restrictions applicable to Japanese companies or investments in Japanese equity
securities and fluctuations in the rate of exchange between currencies may
negatively affect the Japanese securities markets. Moreover, the Japanese
economy may differ favorably or unfavorably from the U.S. economy in economic
factors such as growth in gross national product, rates of inflation, capital
reinvestment, resources and self-sufficiency.

There may be an uncertain trading market for the MITTS Securities in the
future

     Although the MITTS Securities are listed on the AMEX under the symbol
"MLN," you cannot assume that a trading market will continue to exist for the
MITTS Securities. If a trading market in the MITTS Securities continues to
exist, you cannot assume that that there will be liquidity in the trading
market. The continued existence of a trading market for the MITTS Securities
will depend on our financial performance and other factors such as the
appreciation, if any, of the value of the index.

     If the trading market for the MITTS Securities is limited and you do not
wish to hold your investment until maturity, there may be a limited number of
buyers for your MITTS Securities. This may affect the price you receive if you
sell before maturity.

There are many factors affecting the trading value of the MITTS Securities

     We believe that the trading value of the MITTS Securities will be affected
by the value of the index and by a number of other factors. Some of these
factors are interrelated in complex ways; as a result, the effect of any one
factor may be offset or magnified by the effect of another factor. The
following paragraphs describe the expected impact on the market value of the
MITTS Securities given a change in a specific factor, assuming all other
conditions remain constant.

o    The value of the index. The trading value of the MITTS Securities will
     depend substantially on the amount by which the value of the index exceeds
     or does not exceed 14,152.95, the value of the index on the pricing date.
     If you choose to sell your MITTS Securities at a time when the value of
     the index exceeds 14,152.95, you may receive substantially less than the
     amount that would be payable at maturity based on that value because of
     the expectation that the index will continue to fluctuate until shortly
     before the maturity date when the average value of the index over five
     trading days is determined. If you choose to sell your MITTS Securities
     when the value of the index is below, or not sufficiently above,
     14.152.95, you may receive less than $10 per unit of your MITTS
     Securities. In general, rising Japanese dividend rates, or dividends per
     share, may increase the value of the index while falling Japanese dividend
     rates may decrease the value of the index. Additionally, political,
     economic and other developments that affect the stocks underlying the
     index may also affect the value of the index and the value of the MITTS
     Securities.

o    Interest rates. Because we will pay, at a minimum, the principal amount
     per unit of the MITTS Securities at maturity, we expect that the trading
     value of the MITTS Securities will be affected by changes in interest
     rates. In general, if U.S. interest rates increase, we expect that the
     trading value of the MITTS Securities will decrease and, conversely, if
     U.S. interest rates decrease, we expect the trading value of the MITTS
     Securities will increase. In general, if interest rates in Japan increase,
     we expect that the trading value of the MITTS Securities will increase
     and, conversely, if interest rates in Japan decrease, we expect the
     trading value of the MITTS Securities will decrease. However, interest
     rates in Japan may also affect the Japanese economy and, in turn, the
     value of the index. Rising interest rates in Japan may lower the value of
     the index and, as a result, may decrease the value of the MITTS
     Securities. Falling interest rates in Japan may increase the value of the
     index and, as a result, may increase the value of the MITTS Securities.

o    Volatility of the Japanese yen/U.S. dollar exchange rate. The Japanese
     yen/U.S. dollar rate is a foreign exchange spot rate that measures the
     relative values of two currencies, the Japanese yen and the U.S. dollar
     and is expressed as a rate that reflects the amount of Japanese yen that
     can be purchased for one U.S. dollar. The Japanese yen/U.S. dollar rate
     increases when the U.S. dollar appreciates relative to the Japanese yen.
     Volatility is the term used to describe the size and frequency of market
     fluctuations. In general, if the volatility of the Japanese yen/U.S.
     dollar rate increases, we expect that the trading value of the MITTS
     Securities will increase and, conversely, if the volatility of the
     Japanese yen/U.S. dollar rate decreases, we expect that the trading value
     of the MITTS Securities will decrease.

o    Correlation between the Japanese yen/U.S. dollar exchange rate and the
     index. Correlation is the term used to describe the relationship between
     the percentage changes in the Japanese yen/U.S. dollar exchange rate and
     the percentage changes in the index. In general, if the correlation
     between the Japanese yen/U.S. dollar exchange rate and the index
     increases, we expect that the trading value of the MITTS Securities will
     increase and, conversely, if the correlation between the Japanese yen/U.S.
     dollar exchange rate and the index decreases, we expect that the trading
     value of the MITTS Securities will decrease.

o    Volatility of the index. Generally, if the volatility of the index
     increases, we expect that the trading value of the MITTS Securities will
     increase and, conversely, if the volatility of the index decreases, we
     expect that the trading value of the MITTS Securities will decrease.

o    Time remaining to maturity. We anticipate that prior to their maturity,
     the MITTS Securities may trade at a value above that which would be
     expected based on the level of interest rates and the index. This
     difference would reflect a "time premium" due to expectations concerning
     the value of the index during the period before September 21, 2005, the
     stated maturity of the MITTS Securities. However, as the time remaining to
     the stated maturity of the MITTS Securities decreases, we expect that this
     time premium will decrease, lowering the trading value of the MITTS
     Securities.

o    Dividend Yields. Generally, if dividend yields on the stocks included in
     the index increase, we expect that the value of the MITTS Securities will
     decrease and, conversely, if dividend yields on the stocks included in the
     index decrease, we expect that the value of the MITTS Securities will
     increase.

o    Changes in our credit ratings. Our credit ratings are an assessment of our
     ability to pay our obligations. Consequently, real or anticipated changes
     in our credit ratings may affect the trading value of the MITTS
     Securities. However, because your return on your MITTS Securities is
     dependent upon factors in addition to our ability to pay our obligations
     under the MITTS Securities, such as the percentage increase in the value
     of the index at maturity, an improvement in our credit ratings will not
     reduce investment risks related to the MITTS Securities.

     It is important for you to understand that the impact of one of the
factors specified above, such as an increase in U.S. interest rates or a
reduction in our credit ratings, may offset some or all of any increase in the
trading value of the MITTS Securities attributable to another factor, such as
an increase in the value of the index.

     In general, assuming all relevant factors are held constant, we expect
that the effect on the trading value of the MITTS Securities of a given change
in most of the factors listed above will be less if it occurs later in the term
of the MITTS Securities than if it occurs earlier in the term of the MITTS
Securities, except that we expect that the effect on the trading value of the
MITTS Securities of a given increase or decrease in the value of the index will
be greater if it occurs later in the term of the MITTS Securities than if it
occurs earlier in the term of the MITTS Securities.

   
 Amounts payable on the MITTS Securities may be limited by state law
    

     The indenture under which the MITTS Securities are issued is governed by
New York State law. New York has usury laws that limit the amount of interest
that can be charged and paid on loans, which includes debt securities like the
MITTS Securities. Under present New York law, the maximum rate of interest is
25% per annum on a simple interest basis. This limit may not apply to debt
securities in which $2,500,000 or more has been invested.

     While we believe that New York law would be given effect by a state or
Federal court sitting outside of New York, many other states also have laws
that regulate the amount of interest that may be charged to and paid by a
borrower. We will promise, for the benefit of the holders of the MITTS
Securities, to the extent permitted by law, not to voluntarily claim the
benefits of any laws concerning usurious rates of interest.

Purchases and sales by us and our affiliates may affect your return

     We and our affiliates may from time to time buy or sell the stocks
underlying the index for their own accounts, for business reasons or in
connection with hedging our obligations under the MITTS Securities. These
transactions could affect the price of these stocks and the value of the index
in a manner that would be adverse to your investment in the MITTS Securities.

Potential conflicts of interest

     Our subsidiary, Merrill Lynch, Pierce, Fenner & Smith Incorporated or
MLPF&S, is our agent for the purposes of calculating the value of the index and
the amount payable to you at maturity. Under certain circumstances, MLPF&S's
role as our subsidiary and its responsibilities as calculation agent for the
MITTS Securities could give rise to conflicts of interests. These conflicts
could occur, for instance, in connection with its determination as to whether
the value of the index can be calculated on a particular trading day, or in
connection with judgments that it would be required to make in the event of a
discontinuance of the index. See "Description of the MITTS
Securities--Adjustments to the Index; Market Disruption Events" and
"--Discontinuance of the Index" in this prospectus. MLPF&S is required to carry
out its duties as calculation agent in good faith and using its reasonable
judgment. However, you should be aware that because we control MLPF&S,
potential conflicts of interest could arise.

     We have entered into an arrangement with one of our a subsidiaries to
hedge the market risks associated with our obligation to pay amounts due at
maturity on the MITTS Securities. This subsidiary expects to make a profit in
connection with this arrangement. We did not seek competitive bids for this
arrangement from unaffiliated parties.

Other Considerations

     You should reach an investment decision with regard to the MITTS
Securities only after carefully considering the suitability of the MITTS
Securities in the light of your particular circumstances.

     You should also consider the tax consequences of investing in the MITTS
Securities and should consult with your tax adviser.


<PAGE>



                           MERRILL LYNCH & CO., INC.

     We are a holding company that, through our U.S. and non-U.S. subsidiaries
and affiliates such as Merrill Lynch, Pierce, Fenner & Smith Incorporated,
Merrill Lynch Government Securities Inc., Merrill Lynch Capital Services, Inc.,
Merrill Lynch International, Merrill Lynch Capital Markets Bank Ltd., Merrill
Lynch Asset Management L.P. and Merrill Lynch Mercury Asset Management,
provides investment, financing, advisory, insurance, and related products on a
global basis, including:

o    securities brokerage, trading and underwriting;

o    investment banking, strategic services, including mergers and acquisitions
     and other corporate finance advisory activities;

o    asset management and other investment advisory and recordkeeping services;

o    trading and brokerage of swaps, options, forwards, futures and other
     derivatives;

o    securities clearance services;

o    equity, debt and economic research;

o    banking, trust and lending services, including mortgage lending and
     related services; and

o    insurance sales and underwriting services.

     We provide these products and services to a wide array of clients,
including individual investors, small businesses, corporations, governments,
governmental agencies and financial institutions.

     Our principal executive office is located at World Financial Center, North
Tower, 250 Vesey Street, New York, New York 10281; our telephone number is
(212) 449-1000.

     If you want to find more information about us, please see the sections
entitled "Where You Can Find More Information" and "Incorporation of
Information We File with the SEC" in this prospectus.

   
     In this prospectus, "ML&Co.", "we", "us" and "our" refer specifically to
Merrill Lynch & Co., Inc., the holding company. ML&Co. is the issuer of the
MITTS Securities described in this prospectus.
    


<PAGE>


                       RATIO OF EARNINGS TO FIXED CHARGES

   
     In 1998, we acquired the outstanding shares of Midland Walwyn, Inc., in a
transaction accounted for as a pooling-of-interests. The following information
for the fiscal years 1994 through 1997 has been restated as if the two entities
had always been combined. 
    

     The following table sets forth our historical ratios of earnings to fixed
charges for the periods indicated:


<TABLE>
<CAPTION>

                                                     Year Ended Last Friday in December
                                                 1994     1995     1996     1997      1998
                                                 -----------------------------------------

<S>                                               <C>      <C>      <C>      <C>      <C>
Ratio of earnings to fixed charges(a).....        1.2      1.2      1.2      1.2      1.1
   
- ----------
    
(a)  The effect of combining Midland Walwyn did not change the ratios reported for the fiscal years 1994
     through 1997.

</TABLE>

     For the purpose of calculating the ratio of earnings to fixed charges,
"earnings" consist of earnings from continuing operations before income taxes
and fixed charges, excluding capitalized interest and preferred security
dividend requirements. "Fixed charges" consist of interest costs, the interest
factor in rentals, amortization of debt issuance costs, preferred security
dividend requirements of subsidiaries, and capitalized interest.


                      DESCRIPTION OF THE MITTS SECURITIES

     On December 28, 1998, ML&Co. issued an aggregate principal amount of
$70,000,000 or 7,000,000 units of the MITTS Securities. The MITTS Securities
were issued as a series of senior debt securities under the 1983 Indenture
which is more fully described in this prospectus.

     The MITTS Securities will mature on September 21, 2005.

     While at maturity a beneficial owner of a MITTS Security will receive the
principal amount of the MITTS Security plus the Supplemental Redemption Amount
described below, if any, there will be no other payment of interest, periodic
or otherwise. See "- Payment at Maturity" below.

     The MITTS Securities are not subject to redemption by ML&Co. or at the
option of any beneficial owner before maturity. Upon the occurrence of an Event
of Default with respect to the MITTS Securities, beneficial owners of the MITTS
Securities may accelerate the maturity of the MITTS Securities, as described
under "- Events of Default and Acceleration" and "Other Terms Events of
Default" in this prospectus.

     The MITTS Securities were issued in denominations of whole units.

Payment at Maturity

     At the maturity date, a beneficial owner of a MITTS Security will be
entitled to receive the principal amount of each unit plus the Supplemental
Redemption Amount, if any, all as provided below. If the Supplemental
Redemption Amount is not greater than zero, a beneficial owner of a MITTS
Security will be entitled to receive only the principal amount of its MITTS
Securities.

     The "Supplemental Redemption Amount" for a MITTS Security will be
determined by the calculation agent and will equal:


                                               (Ending Value - Starting Value)
 principal amount of each MITTS Security       -------------------------------
                          ($10 per unit) X            (Starting Value)


     provided, however, that in no event will the Supplemental Redemption
Amount be less than zero.

     The "Starting Value" equals 14,152.95.

     The "Ending Value" will be determined by the calculation agent and will
equal the average or arithmetic mean of the closing values of the Nikkei 225
Index (the "Index") determined on each of the first five Calculation Days
during the Calculation Period. If there are fewer than five Calculation Days,
then the Ending Value will equal the average or arithmetic mean of the closing
values of the Index on these Calculation Days, and if there is only one
Calculation Day, then the Ending Value will equal the closing value of the
Index on that Calculation Day. If no Calculation Days occur during the
Calculation Period, then the Ending Value will equal the closing value of the
Index determined on the last scheduled Index Business Day in the Calculation
Period, regardless of the occurrence of a Market Disruption Event on that day.

     The "Calculation Period" means the period from and including the seventh
scheduled Index Business Day prior to the maturity date to and including the
second scheduled Index Business Day prior to the maturity date.

     "Calculation Day" means any Index Business Day during the Calculation
Period on which a Market Disruption Event has not occurred.

     An "Index Business Day" is a day on which the NYSE and the AMEX are open
for trading and the Index or any Successor Index, as defined on page 11 below,
is calculated and published.

     All determinations made by the calculation agent shall be at the sole
discretion of the calculation agent and, absent a determination by the
calculation agent of a manifest error, shall be conclusive for all purposes and
binding on ML&Co. and beneficial owners of the MITTS Securities.



<PAGE>


Hypothetical Returns

     The following table illustrates, for a range of hypothetical Ending
Values:

o    the percentage change from the Starting Value to the Ending Value;

o    the total amount payable per Unit of MITTS Securities;

o    the total rate of return on the MITTS Securities;

o    the pretax annualized rate of return on the MITTS Securities; and

o    the pretax annualized rate of return of the stocks underlying the Index
     ,which includes an assumed aggregate dividend yield of 1.04% per annum, as
     more fully described below.

<TABLE>
<CAPTION>


                             Ending         Total Amount                       
                             Value           Payable at                         Pretax Annualized      Pretax Annualized
                          Percentage          Maturity         Total Rate of          Rate of          Rate of Return of
     Hypothetical       Change Over the      Per Unit of       Return on the       Return on the       Stocks Underlying
     Ending Value       Starting Value    MITTS Securities   MITTS Securities   MITTS Securities(1)     the Index(1)(2)
     ------------       --------------    ----------------   ----------------   -------------------     ----------------
                                                                               
     <S>                    <C>               <C>                 <C>                 <C>                  <C>  
      7,076.48              -50.00%            $ 10.00             0.00%               0.00%               -9.00%
      8,491.77              -40.00%            $ 10.00             0.00%               0.00%               -6.41%
      9,907.07              -30.00%            $ 10.00             0.00%               0.00%               -4.20%
      11,322.36             -20.00%            $ 10.00             0.00%               0.00%               -2.25%
      12,737.66             -10.00%            $ 10.00             0.00%               0.00%               -0.52%
      14,152.95(3)            0.00%            $ 10.00             0.00%               0.00%                1.04%
      15,568.25              10.00%            $ 11.00            10.00%               1.42%                2.47%
      16,983.54              20.00%            $ 12.00            20.00%               2.72%                3.79%
      18,398.84              30.00%            $ 13.00            30.00%               3.93%                5.00%
      19,814.13              40.00%            $ 14.00            40.00%               5.06%                6.14%
      21,229.43              50.00%            $ 15.00            50.00%               6.11%                7.20%
      22,644.72              60.00%            $ 16.00            60.00%               7.10%                8.20%
      24,060.02              70.00%            $ 17.00            70.00%               8.03%                9.15%
      25,475.31              80.00%            $ 18.00            80.00%               8.92%               10.04%
      26,890.61              90.00%            $ 19.00            90.00%               9.76%               10.89%
      28,305.90             100.00%            $ 20.00            100.00%              10.56%              11.70%
      29,721.20             110.00%            $ 21.00            110.00%              11.32%              12.48%
      31,136.49             120.00%            $ 22.00            120.00%              12.05%              13.22%
      32,551.79             130.00%            $ 23.00            130.00%              12.75%              13.93%
      33,967.08             140.00%            $ 24.00            140.00%              13.43%              14.61%
      35,382.38             150.00%            $ 25.00            150.00%              14.07%              15.27%
</TABLE>

(1)  The annualized rates of return specified in the preceding table are
     calculated on a semiannual bond equivalent basis.
(2)  This rate of return assumes:

     (a)     a constant dividend yield of 1.04% per annum, paid quarterly 
          from the date of initial delivery of MITTS Securities, applied to 
          the value of the Index at the end of each quarter assuming the value
          increases or decreases linearly from the Starting Value to the 
          hypothetical Ending Value;
      (b)    no transaction fees or expenses; 
      (c)    the term of the MITTS Securities is from December 28, 1998 to 
          September 21, 2005; and 
      (d)    a final Index value equal to the hypothetical Ending Value.
(3)   The Starting Value of the Index.

     The above figures are for purposes of illustration only. The actual
investment term, Supplemental Redemption Amount received by investors, and the
respective total and pretax annualized rate of return will depend entirely on
the Starting Value and the actual Ending Value determined by the calculation
agent as provided herein.

Adjustments to the Index; Market Disruption Events

     If at any time the method of calculating the Index, or its value, is
changed in any material respect, or if the Index is in any other way modified
so that the Index does not, in the opinion of the calculation agent, fairly
represent the value of the Index had the changes or modifications not been
made, then, from and after that time, the calculation agent shall, at the close
of business in New York, New York, on each date that the closing value with
respect to the Ending Value is to be calculated, make such adjustments as, in
the good faith judgment of the calculation agent, may be necessary in order to
arrive at a calculation of a value of a stock index comparable to the Index as
if the changes or modifications had not been made, and calculate the closing
value with reference to the Index, as adjusted. Accordingly, if the method of
calculating the Index is modified so that the value of the Index is a fraction
or a multiple of what it would have been if it had not been modified (e.g., due
to a split in the Index), then the calculation agent shall adjust the Index in
order to arrive at a value of the Index as if it had not been modified, e.g.,
as if the split had not occurred.

     "Market Disruption Event" means either of the following events, as
determined by the calculation agent:

o    a suspension, material limitation or absence of trading on the Tokyo Stock
     Exchange (the "TSE") of 20% or more of the underlying stocks which then
     comprise the Index or a Successor Index during the one-half hour period
     preceding the close of trading on the applicable exchange; or

o    the suspension or material limitation on the Singapore International
     Monetary Exchange, Ltd. (the "SIMEX"), the Osaka Securities Exchange (the
     "OSE") or any other major futures or securities market from trading in
     futures or options contracts related to the Index or a Successor Index
     during the one-half hour period preceding the close of trading on the
     applicable exchange.

     For the purposes of determining whether a Market Disruption Event has
occurred:

o    a limitation on the hours or number of days of trading will not constitute
     a Market Disruption Event if it results from an announced change in the
     regular business hours of the relevant exchange,

o    a decision to permanently discontinue trading in the relevant futures or
     options contract will not constitute a Market Disruption Event,

o    a suspension in trading in a futures or options contract on the Index by a
     major securities market by reason of

     o    a price change violating limits set by the securities market,

     o    an imbalance of orders relating to futures or options contracts or

     o    a disparity in bid and ask quotes relating to futures or options
          contracts will constitute a suspension or material limitation of
          trading in futures or options contracts related to the Index, and

o    an absence of trading on the TSE will not include any time when the TSE is
     closed for trading under ordinary circumstances.

Under certain circumstances, the duties of MLPF&S as calculation agent in
determining the existence of Market Disruption Events could conflict with the
interests of MLPF&S as a subsidiary of ML&Co..

     Based on the information currently available to ML&Co., the opening of
trading on the OSE was delayed on January 17, 1995 because of the earthquake in
Kobe. If this delay had occurred during the one-half hour period preceding the
close of trading on the OSE, it would have constituted a Market Disruption
Event. In addition, because of movements in the price for futures contracts for
the Index, the OSE imposed price limits on futures contracts on January 23,
1995 that were in effect during the one-half hour period preceding the close of
trading on the OSE and that would have constituted a Market Disruption Event.
On January 31 and February 1 of 1994, prices for futures contracts for the
Index reached price limits imposed by the OSE, which would have been a Market
Disruption Event. Other than the foregoing events, to ML&Co.'s knowledge no
circumstances have arisen since the inception of the Index that could have
constituted a Market Disruption Event. The existence or nonexistence of these
circumstances, however, is not necessarily indicative of the likelihood of
these circumstances arising or not arising in the future.

Discontinuance of the Index

     If the publisher of the Nikkei 225 Index, Nihon Keizai Shimbum, Inc.
("NKS"), discontinues publication of the Index and NKS or another entity
publishes a successor or substitute index that the calculation agent
determines, in its sole discretion, to be comparable to the Index (any
successor or substitute index is referred to as a "Successor Index"), then,
upon the calculation agent's notification of that determination to the Trustee
and ML&Co., the calculation agent will substitute the Successor Index as
calculated by NKS or such other entity for the Index and calculate the Ending
Value as described above under "-Payment at Maturity". Upon any selection by
the calculation agent of a Successor Index, ML&Co. shall cause notice to be
given to holders of the MITTS Securities.

     If NKS discontinues publication of the Index and a Successor Index is not
selected by the calculation agent or is no longer published on any of the
Calculation Days, the value to be substituted for the Index for any Calculation
Day used to calculate the Supplemental Redemption Amount at maturity will be a
value computed by the calculation agent for each Calculation Day in accordance
with the procedures last used to calculate the Index before any discontinuance.
If a Successor Index is selected or the calculation agent calculates a value as
a substitute for the Index as described below, that Successor Index or value
shall be substituted for the Index for all purposes, including for purposes of
determining whether a Market Disruption Event exists. If the calculation agent
calculates a value as a substitute for the Index, "Calculation Day" shall mean
any day on which the Calculation Agent is able to calculate a substitute value.

     If NKS discontinues publication of the Index before the period during
which the Supplemental Redemption Amount is to be determined and the
calculation agent determines that no Successor Index is available at that time,
then on each Business Day until the earlier to occur of:

     o    the determination of the Ending Value and

     o    a determination by the Calculation Agent that a Successor Index is
          available,

the calculation agent shall determine the value that would be used in computing
the Supplemental Redemption Amount as described in the preceding paragraph as
if that day were a Calculation Day. The Calculation Agent will cause notice of
each value to be published not less often than once each month in The Wall
Street Journal (or another newspaper of general circulation), and arrange for
the values to be made available by telephone.

     Notwithstanding these alternative arrangements, discontinuance of the
publication of the Index may adversely affect trading in the MITTS Securities.

Events of Default and Acceleration

     If an Event of Default with respect to any MITTS Securities has occurred
and is continuing, the amount payable to a beneficial owner of a MITTS Security
upon any acceleration permitted by the MITTS Securities, with respect to each
$10 principal amount per unit, will be equal to the principal amount per unit
and the Supplemental Redemption Amount, if any, calculated as though the date
of early repayment were the stated maturity date of the MITTS Securities. See
"- Payment at Maturity" in this prospectus. If a bankruptcy proceeding is
commenced in respect of ML&Co., the claim of the beneficial owner of a MITTS
Security may be limited, under Section 502(b)(2) of Title 11 of the United
States Code, to the principal amount per unit of the MITTS Security plus an
additional amount of contingent interest calculated as though the date of the
commencement of the proceeding were the maturity date of the MITTS Securities.

     In case of default in payment of the MITTS Securities, whether at the
stated maturity or upon acceleration, from and after the maturity date the
MITTS Securities shall bear interest, payable upon demand of the beneficial
owners, at the rate of 6.01% per annum (to the extent that payment of such
interest shall be legally enforceable) on the unpaid amount due and payable on
such date in accordance with the terms of the MITTS Securities to the date
payment of that amount has been made or duly provided for.

Global Securities

     Description of the Global Securities

   
     Beneficial owners of the MITTS Securities may not receive physical
delivery of the MITTS Securities nor may they be entitled to have the MITTS
Securities registered in their names. The MITTS Securities currently are
represented by one or more fully registered global securities. Each global
security was deposited with, or on behalf of, The Depository Trust Company or
DTC (DTC, together with any successor thereto, being a "depositary"), as
depositary, registered in the name of Cede & Co. (DTC's partnership nominee).
Unless and until it is exchanged in whole or in part for MITTS Securities in
definitive form, no global security may be transferred except as a whole by the
depositary to a nominee of the depositary or by a nominee of the depositary to
the depositary or another nominee of the depositary or by the depositary or any
such nominee to a successor of the depositary or a nominee of that successor.

     So long as DTC, or its nominee, is a registered owner of a global
security, DTC or its nominee, as the case may be, will be considered the sole
owner or holder of the MITTS Securities represented by a global security for
all purposes under the 1983 Indenture. Except as provided below, the beneficial
owners of the MITTS Securities represented by a global security will not be
entitled to have the MITTS Securities represented by the global security
registered in their names, will not receive or be entitled to receive physical
delivery of the MITTS Securities in definitive form and will not be considered
the owners or Holders under the 1983 Indenture, including for purposes of
receiving any reports delivered by ML&Co. or the trustee under the 1983
Indenture. Accordingly, each person owning a beneficial interest in a global
security must rely on the procedures of DTC and, if that person is not a
participant of DTC on the procedures of the participant through which such
person owns its interest, to exercise any rights of a Holder under the 1983
Indenture. ML&Co. understands that under existing industry practices, in the
event that ML&Co. requests any action of Holders or that an owner of a
beneficial interest in a global security desires to give or take any action
which a Holder is entitled to give or take under the 1983 Indenture, DTC would
authorize the participants holding the relevant beneficial interests to give or
take any action, and the participants would authorize beneficial owners owning
through those participants to give or take action or would otherwise act upon
the instructions of beneficial owners. Conveyance of notices and other
communications by DTC to participants, by participants to indirect participants
and by participants and indirect participants to beneficial owners will be
governed by arrangements among them, subject to any statutory or regulatory
requirements as may be in effect from time to time.     

     DTC Procedures

     The following is based on information furnished by DTC:

     DTC is the securities depositary for the MITTS Securities. The MITTS
Securities were issued as fully registered securities registered in the name of
Cede & Co., DTC's partnership nominee. One or more fully registered global
securities were issued for the MITTS Securities in the aggregate principal
amount of the MITTS Securities, and were deposited with DTC.

     DTC is a limited-purpose trust company organized under the New York
Banking Law, a "banking organization" within the meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing corporation"
within the meaning of the New York Uniform Commercial Code, and a "clearing
agency" registered under to the provisions of Section 17A of the Securities and
Exchange Act of 1934, as amended. DTC holds securities that its participants
deposit with DTC. DTC also facilitates the settlement among participants of
securities transactions, such as transfers and pledges, in deposited securities
through electronic computerized book-entry changes in participants' accounts,
thereby eliminating the need for physical movement of securities certificates.
Direct participants of DTC include securities brokers and dealers, banks, trust
companies, clearing corporations and other organizations. DTC is owned by a
number of its direct participants and by the NYSE, the AMEX and the National
Association of Securities Dealers, Inc. Access to the DTC's system is also
available to others such as securities brokers and dealers, banks and trust
companies that clear through or maintain a custodial relationship with a direct
participant, either directly or indirectly. The rules applicable to DTC and its
participants are on file with the SEC.

     Purchases of MITTS Securities under DTC's system must be made by or
through direct participants, which will receive a credit for the MITTS
Securities on DTC's records. The ownership interest of each beneficial owner is
in turn to be recorded on the records of direct and indirect participants.
Beneficial owners will not receive written confirmation from DTC of their
purchase, but beneficial owners are expected to receive written confirmations
providing details of the transaction, as well as periodic statements of their
holdings, from the direct participants or indirect participants through which
the beneficial owner entered into the transaction. Transfers of ownership
interests in the MITTS Securities are to be accomplished by entries made on the
books of participants acting on behalf of beneficial owners.

     To facilitate subsequent transfers, all MITTS Securities deposited with
DTC are registered in the name of DTC's partnership nominee, Cede & Co. The
deposit of MITTS Securities with DTC and their registration in the name of Cede
& Co. effect no change in beneficial ownership. DTC has no knowledge of the
actual beneficial owners of the MITTS Securities; DTC's records reflect only
the identity of the direct participants to whose accounts the MITTS Securities
are credited, which may or may not be the beneficial owners. The participants
will remain responsible for keeping account of their holdings on behalf of
their customers.

     Conveyance of notices and other communications by DTC to direct
participants, by direct participants to indirect participants, and by direct
and indirect participants to beneficial owners will be governed by arrangements
among them, subject to any statutory or regulatory requirements as may be in
effect from time to time.

     Neither DTC nor Cede & Co. will consent or vote with respect to the MITTS
Securities. Under its usual procedures, DTC mails an omnibus proxy to ML&Co. as
soon as possible after the applicable record date. The omnibus proxy assigns
Cede & Co.'s consenting or voting rights to those direct participants
identified in a listing attached to the omnibus proxy to whose accounts the
MITTS Securities are credited on the record date identified in a listing
attached to the omnibus proxy.

   
     Principal, premium, if any, and/or interest, if any, payments on the MITTS
Securities will be made in immediately available funds to DTC. DTC's practice
is to credit direct participants' accounts on the applicable payment date in
accordance with their respective holdings shown on the Depositary's records
unless DTC has reason to believe that it will not receive payment on that date.
Payments by participants to beneficial owners will be governed by standing
instructions and customary practices, as is the case with securities held for
the accounts of customers in bearer form or registered in "street name", and
will be the responsibility of the participant and not of DTC, the trustee or
ML&Co., subject to any statutory or regulatory requirements as may be in effect
from time to time. Payment of principal, premium, if any, and/or interest, if
any, to DTC is the responsibility of ML&Co. or the Trustee, disbursement of
payments to direct participants is the responsibility of DTC, and disbursement
of payments to the beneficial owners is the responsibility of direct and
indirect participants.

     Exchange for Certificated Securities
    

         If:

   
     o    the depositary is at any time unwilling or unable to continue as
          depositary and a successor depositary is not appointed by ML&Co.
          within 60 days,

     o    ML&Co. executes and delivers to the trustee a company order to the
          effect that the global securities shall be exchangeable, or

     o    an Event of Default under the 1983 Indenture has occurred and is
          continuing with respect to the MITTS Securities,

the global securities will be exchangeable for MITTS Securities in definitive
form of like tenor and of an equal aggregate principal amount, in denominations
of $10 and integral multiples of $10. The definitive MITTS Securities will be
registered in the name or names as the depositary shall instruct the trustee.
It is expected that instructions may be based upon directions received by the
depositary from participants with respect to ownership of beneficial interests
in the global securities.

     In addition, ML&Co. may decide to discontinue use of the system of
book-entry transfers through the depositary. In that event, MITTS Securities in
definitive form will be printed and delivered.
    

     The information in this section concerning DTC and DTC's system has been
obtained from sources that ML&Co. believes to be reliable, but ML&Co. takes no
responsibility for its accuracy.

Same-Day Settlement and Payment

     All payments of principal and the Supplemental Redemption Amount, if any,
will be made by ML&Co. in immediately available funds so long as the MITTS
Securities are maintained in book-entry form.


                       THE NIKKEI 225 INDEX

         Unless otherwise stated, all information relating to the Nikkei 225
Index in this prospectus has been derived from the Stock Market Indices Data
Book published by NKS and other publicly-available sources. This information
reflects the policies of NKS as stated in these sources; these policies are
subject to change at the discretion of NKS.

     The Nikkei 225 Index is a stock index calculated, published and
disseminated by NKS that measures the composite price performance of selected
Japanese stocks. The Nikkei 225 Index is currently based on 225 underlying
stocks (the "Underlying Stocks") trading on the TSE and represents a broad
cross-section of Japanese industry. All 225 Underlying Stocks are stocks listed
in the First Section of the TSE. Stocks listed in the First Section are among
the most actively traded stocks on the TSE. Futures and options contracts on
the Nikkei 225 Index are traded on the SIMEX, the OSE and the Chicago
Mercantile Exchange.

     The Nikkei 225 Index is a modified, price-weighted index (i.e., an
Underlying Stock's weight in the index is based on its price per share rather
than the total market capitalization of the issuer) which is calculated by

     o    multiplying the per share price of each Underlying Stock by the
          corresponding weighting factor for that Underlying Stock (a "Weight
          Factor"),

     o    calculating the sum of all these products, and

     o    dividing the sum by a divisor.

   
     The divisor, initially set in 1949 at 225, was 10.052 as of December 21,
1998, and is subject to periodic adjustments as set forth below. Each Weight
Factor is computed by dividing (Y)50 by the par value of the relevant
Underlying Stock, so that the share price of each Underlying Stock when
multiplied by its Weight Factor corresponds to a share price based on a uniform
par value of (Y)50. Each Weight Factor represents the number of shares of the
related Underlying Stock which are included in one trading unit of the Nikkei
225 Index. The stock prices used in the calculation of the Nikkei 225 Index are
those reported by a primary market for the Underlying Stocks, currently the
TSE. The level of the Nikkei 225 Index is calculated once per minute during TSE
trading hours.     

     In order to maintain continuity in the level of the Nikkei 225 Index in
the event of certain changes due to non-market factors affecting the Underlying
Stocks, such as the addition or deletion of stocks, substitution of stocks,
stock dividends, stock splits or distributions of assets to stockholders, the
divisor used in calculating the Nikkei 225 Index is adjusted in a manner
designed to prevent any instantaneous change or discontinuity in the level of
the Nikkei 225 Index. Thereafter, the divisor remains at the new value until a
further adjustment is necessary as the result of another change. As a result of
each change affecting any Underlying Stock, the divisor is adjusted so that the
sum of all share prices immediately after the change multiplied by the
applicable Weight Factor and divided by the new divisor, which will be the
level of the Nikkei 225 Index immediately after the change, will equal the
level of the Nikkei 225 Index immediately prior to the change.

     Underlying Stocks may be deleted or added by NKS. However, to maintain
continuity in the Nikkei 225 Index, the policy of NKS is generally not to alter
the composition of the Underlying Stocks except when an Underlying Stock is
deleted in accordance with the following criteria. Any stock becoming
ineligible for listing in the First Section of the TSE due to any of the
following reasons will be deleted from the Underlying Stocks: bankruptcy of the
issuer; merger of the issuer into, or acquisition of the issuer by, another
company; delisting of the stock or transfer of the stock to the "Seiri-Post"
because of excess debt of the issuer or because of any other reason; or
transfer of the stock to the Second Section of the TSE. Upon deletion of a
stock from the Underlying Stocks, NKS will select, in accordance with criteria
established by it, a replacement for deleted Underlying Stock. In an
exceptional case, a newly listed stock in the First Section of the TSE that is
recognized by NKS to be representative of a market may be added to the
Underlying Stocks. In such case, an existing Underlying Stock with low trading
volume and not representative of a market will be deleted.

     NKS is under no obligation to continue the calculation and dissemination
of the Nikkei 225 Index. The MITTS Securities are not sponsored, endorsed, sold
or promoted by NKS. No inference should be drawn from the information contained
in this prospectus that NKS makes any representation or warranty, implied or
express, to ML&Co., the holder of the MITTS Securities or any member of the
public regarding the advisability of investing in securities generally or in
the MITTS Securities in particular or the ability of the Nikkei 225 Index to
track general stock market performance. NKS has no obligation to take the needs
of ML&Co. or the holder of the MITTS Securities into consideration in
determining, composing or calculating the Nikkei 225 Index. NKS is not
responsible for, and has not participated in the determination of the timing
of, prices for, or quantities of, the MITTS Securities that have been issued or
in the determination or calculation of the equation by which the MITTS
Securities are to be settled in cash. NKS has no obligation or liability in
connection with the administration or marketing of the MITTS Securities.

     The use of and reference to the Nikkei 225 Index in connection with the
MITTS Securities have been consented to by NKS, the publisher of the Nikkei 225
Index.

   
     None of ML&Co., the calculation agent and MLPF&S accepts any
responsibility for the calculation, maintenance or publication of the Nikkei
225 Index or any Successor Index. NKS disclaims all responsibility for any
errors or omissions in the calculation and dissemination of the Nikkei 225
Index or the manner in which the Index is applied in determining any Starting
Values or Ending Values or any Supplemental Redemption Amount upon maturity of
the MITTS Securities.     

The Tokyo Stock Exchange

     The TSE is one of the world's largest securities exchanges in terms of
market capitalization. Trading hours are currently from 9:00 A.M. to 11:00 A.M.
and from 12:30 P.M. to 3:00 P.M., Tokyo time, Monday through Friday.

     Due to the time zone difference, on any normal trading day the TSE will
close prior to the opening of business in New York City on the same calendar
day. Therefore, the closing level of the Nikkei 225 Index on such trading day
will generally be available in the United States by the opening of business on
the same calendar day.

     The TSE has adopted measures, including daily price floors and ceilings on
individual stocks, intended to prevent any extreme short-term price
fluctuations resulting from order imbalances. In general, any stock listed on
the TSE cannot be traded at a price lower than the applicable price floor or
higher than the applicable price ceiling. Price floors and ceilings are
expressed in absolute Japanese yen, rather than percentage, limits based on the
closing price of the stock on the previous trading day. In addition, when there
is a major order imbalance in a listed stock, the TSE posts a "special bid
quote" or a "special asked quote" for that stock at a specified higher or lower
price level than the stock's last sale price in order to solicit counter-orders
and balance supply and demand for the stock. Prospective investors should also
be aware that the TSE may suspend the trading of individual stocks in limited
and extraordinary circumstances, including, for example, unusual trading
activity in that stock. As a result, changes in the Nikkei 225 Index may be
limited by price limitations or special quotes, or by suspension of trading, on
individual stocks which comprise the Nikkei 225 Index, which limitations may,
in turn, adversely affect the value of the MITTS Securities.


                                  OTHER TERMS

   
     The MITTS Securities were issued as a series of senior debt securities
under the 1983 Indenture, dated as of April 1, 1983, as amended and restated,
between ML&Co. and The Chase Manhattan Bank, as trustee. A copy of the 1983
Indenture is filed as an exhibit to the registration statement relating to the
MITTS Securities of which this prospectus is a part. The following summaries of
the material provisions of the 1983 Indenture are not complete and are subject
to, and qualified in their entirety by reference to, all provisions of the 1983
Indenture, including the definitions of terms in the 1983 Indenture.     

     Series of senior debt securities may from time to time be issued under the
1983 Indenture, without limitation as to aggregate principal amount, in one or
more series and upon terms as ML&Co. may establish under the provisions of the
1983 Indenture.

     The 1983 Indenture and the MITTS Securities are governed by and construed
in accordance with the laws of the State of New York.

     ML&Co. may issue senior debt securities with terms different from those of
senior debt securities previously issued, and issue additional senior debt
securities of a previously issued series of senior debt securities.

     The senior debt securities are unsecured and rank equally with all other
unsecured and unsubordinated indebtedness of ML&Co. However, because ML&Co. is
a holding company, the rights of ML&Co. and its creditors, including the
holders of senior debt securities, to participate in any distribution of the
assets of any subsidiary upon its liquidation or reorganization or otherwise is
necessarily subject to the prior claims of creditors of the subsidiary, except
to the extent that claims of ML&Co. itself as a creditor of the subsidiary may
be recognized. In addition, dividends, loans and advances from certain
subsidiaries, including MLPF&S, to ML&Co. are restricted by net capital
requirements under the Exchange Act, and under rules of exchanges and other
regulatory bodies.

Limitations Upon Liens

   
     ML&Co. may not, and may not permit any majority-owned subsidiary to,
create, assume, incur or permit to exist any indebtedness for borrowed money
secured by a pledge, lien or other encumbrance, other than those liens
specifically permitted by the 1983 Indenture, on the Voting Stock owned
directly or indirectly by ML&Co. of any majority-owned subsidiary, other than a
majority-owned subsidiary which, at the time of the incurrence of the secured
indebtedness, has a net worth of less than $3,000,000, unless the outstanding
senior debt securities are secured equally and ratably with the secured
indebtedness.

     "Voting Stock" is defined in the 1983 Indenture as the stock of the class
or classes having general voting power under ordinary circumstances to elect at
least a majority of the board of directors, managers or trustees of a
corporation provided that, for the purposes of the 1983 Indenture, stock that
carries only the right to vote conditionally on the occurrence of an event is
not considered voting stock whether or not the event has happened.     

Limitation on Disposition of Voting Stock of, and Merger and Sale of
Assets by, MLPF&S

     ML&Co. may not sell, transfer or otherwise dispose of any Voting Stock of
MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of its
Voting Stock, unless, after giving effect to any such transaction, MLPF&S
remains a Controlled Subsidiary.

     "Controlled Subsidiary" is defined in the 1983 Indenture to mean a
corporation more than 80% of the outstanding shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

     In addition, ML&Co. may not permit MLPF&S to:

     o    merge or consolidate, unless the surviving company is a Controlled
          Subsidiary, or

     o    convey or transfer its properties and assets substantially as an
          entirety, except to one or more Controlled Subsidiaries.

Merger and Consolidation

     ML&Co. may consolidate or merge with or into any other corporation and
ML&Co. may sell, lease or convey all or substantially all of its assets to any
corporation, provided that:

     o    the resulting corporation, if other than ML&Co., is a corporation
          organized and existing under the laws of the United States of America
          or any U.S. state and assumes all of ML&Co.'s obligations to:

          o    pay any amounts due and payable or deliverable with respect to
               all the Senior Debt Securities; and

   
          o    perform and observe of all of ML&Co.'s obligations under the
               1983 Indenture, and
    

     o    ML&Co. or the successor corporation, as the case may be, is not,
          immediately after any consolidation or merger, in default under the
          1983 Indenture.

Modification and Waiver

   
     ML&Co. and the trustee may modify and amend the 1983 Indenture with the
consent of holders of at least 66 2/3% in principal amount of each outstanding
series of debt securities affected. However, without the consent of each holder
of any outstanding debt security affected, no amendment or modification to any
Indenture may:
    

     o    change the stated maturity date of the principal of, or any
          installment of interest or Additional Amounts payable on, any senior
          debt security or any premium payable on redemption, or change the
          redemption price;

     o    reduce the principal amount of, or the interest or Additional Amounts
          payable on, any senior debt security or reduce the amount of
          principal which could be declared due and payable before the stated
          maturity date;

     o    change the place or currency of any payment of principal or any
          premium, interest or Additional Amounts payable on any senior debt
          security;

     o    impair the right to institute suit for the enforcement of any payment
          on or with respect to any senior debt security;

     o    reduce the percentage in principal amount of the outstanding senior
          debt securities of any series, the consent of whose holders is
          required to modify or amend the 1983 Indenture; or

     o    modify the foregoing requirements or reduce the percentage of
          outstanding senior debt securities necessary to waive any past
          default to less than a majority.

   
     No modification or amendment of ML&Co.'s Subordinated Indenture or any
Subsequent Indenture for subordinated debt securities may adversely affect the
rights of any holder of ML&Co.'s senior indebtedness without the consent of
each holder affected. The holders of at least a majority in principal amount of
outstanding senior debt securities of any series may, with respect to that
series, waive past defaults under the Indenture and waive compliance by ML&Co.
with provisions in the 1983 Indenture, except as described under "--Events of
Default".     

Events of Default

     Each of the following will be Events of Default with respect to senior
debt securities of any series:

     o    default in the payment of any interest or Additional Amounts payable
          when due and continuing for 30 days;

     o    default in the payment of any principal or premium when due;

     o    default in the deposit of any sinking fund payment, when due;

     o    default in the performance of any other obligation of ML&Co.
          contained in the Indenture for the benefit of that series or in the
          senior debt securities of that series, continuing for 60 days after
          written notice as provided in the 1983 Indenture;

     o    specified events in bankruptcy, insolvency or reorganization of
          ML&Co.; and

     o    any other Event of Default provided with respect to senior debt
          securities of that series which are not inconsistent with the 1983
          Indenture.

   
     If an Event of Default occurs and is continuing for any series of senior
debt securities, other than as a result of the bankruptcy, insolvency or
reorganization of ML&Co., the trustee or the holders of at least 25% in
principal amount of the outstanding senior debt securities of that series may
declare all amounts, or any lesser amount provided for in the senior debt
securities, due and payable or deliverable immediately. At any time after a
declaration of acceleration has been made with respect to senior debt
securities of any series but before the trustee has obtained a judgment or
decree for payment of money, the holders of a majority in principal amount of
the outstanding senior debt securities of that series may rescind any
declaration of acceleration and its consequences, if all payments due, other
than those due as a result of acceleration, have been made and all Events of
Default have been remedied or waived.

     The holders of a majority in principal amount or aggregate issue price of
the outstanding debt securities of any series of senior debt securities may
waive an Event of Default under that series, except a default:     

     o    in the payment of any amounts due and payable or deliverable under
          the debt securities of that series; or

     o    in respect of an obligation or provision of any Indenture which
          cannot be modified under the terms of that Indenture without the
          consent of each holder of each series of debt securities affected.

     The holders of a majority in principal amount of the outstanding senior
debt securities of a series may direct the time, method and place of conducting
any proceeding for any remedy available to the Trustee or exercising any trust
or power conferred on the Trustee with respect to those senior debt securities,
provided that any direction shall not be in conflict with any rule of law or
the 1983 Indenture. Before proceeding to exercise any right or power under the
1983 Indenture at the direction of the holders, the Trustee shall be entitled
to receive from the Holders reasonable security or indemnification against the
costs, expenses and liabilities which might be incurred by it in complying with
any direction.

     The MITTS Securities and other series of senior debt securities issued
under the 1983 Indenture do not have the benefit of any cross-default
provisions with other indebtedness of ML&Co.

   
     ML&Co. is required to furnish to the trustee annually a statement as to
the fulfillment by ML&Co. of all of its obligations under the 1983 Indenture.


                           PROJECTED PAYMENT SCHEDULE
    

     Solely for purposes of applying the final Treasury Department Regulations
(the "Final Regulations") concerning the United States Federal income tax
treatment of contingent payment debt instruments to the MITTS Securities,
ML&Co. has determined that the projected payment schedule for the MITTS
Securities will consist of payment on the maturity date of the principal amount
and a projected Supplemental Redemption Amount equal to $4.8938 per Unit (the
"Projected Supplemental Redemption Amount"). This represents an estimated yield
on the MITTS Securities equal to 6.01% per annum (compounded semiannually).

     The projected payment schedule (including both the Projected Supplemental
Redemption Amount and the estimated yield on the MITTS Securities) has been
determined solely for United States Federal income tax purposes (i.e., for
purposes of applying the Final Regulations to the MITTS Securities), and is
neither a prediction nor a guarantee of what the actual Supplemental Redemption
Amount will be, or that the actual Supplemental Redemption Amount will even
exceed zero.

     The following table sets forth the amount of interest that will be deemed
to have accrued with respect to each Unit of the MITTS Securities during each
accrual period over the term of the MITTS Securities based upon the projected
payment schedule for the MITTS Securities (including both the Projected
Supplemental Redemption Amount and the estimated yield equal to 6.01% per annum
(compounded semiannually)) as determined by ML&Co. for purposes of applying the
Final Regulations to the MITTS Securities:


<TABLE>
<CAPTION>

                                                       Interest Deemed to             Total Interest
                                                         Accrue During            Deemed to Have Accrued
                                                        Accrual Period           on the MITTS Securities
                                                          (per Unit)           as of End of Accrual Period
                  Accrual Period                                                        (per Unit)
                -----------------                    -----------------------  --------------------------------
<S>                                                        <C>                           <C>     
December 28, 1998 through March 21, 1999............       $ 0.1356                      $ 0.1356
March 22, 1999 through September 21, 1999...........       $ 0.3045                      $ 0.4401
September 22, 1999 through March 21, 2000...........       $ 0.3138                      $ 0.7539
March 22, 2000 through September 21, 2000...........       $ 0.3231                      $ 1.0770
September 22, 2000 through March 21, 2001...........       $ 0.3329                      $ 1.4099
March 22, 2001 through September 21, 2001...........       $ 0.3428                      $ 1.7527
September 22, 2001 through March 21, 2002...........       $ 0.3532                      $ 2.1059
March 22, 2002 through September 21, 2002...........       $ 0.3638                      $ 2.4697
September 22, 2002 through March 21, 2003...........       $ 0.3747                      $ 2.8444
March 22, 2003 through September 21, 2003...........       $ 0.3860                      $ 3.2304
September 22, 2003 through March 21, 2004...........       $ 0.3976                      $ 3.6280
March 22, 2004 through September 21, 2004...........       $ 0.4095                      $ 4.0375
September 22, 2004 through March 21, 2005...........       $ 0.4218                      $ 4.4593
March 22, 2005 through September 21, 2005...........       $ 0.4345                      $ 4.8938

</TABLE>

     Projected Supplemental Redemption Amount = $ 4.8938 per Unit.

     All prospective investors in the Securities should consult their own tax
advisors concerning the application of the Final Regulations to their
investment in the MITTS Securities. Investors in the MITTS Securities may also
obtain the projected payment schedule, as determined by ML&Co. for purposes of
the application of the Final Regulations to the MITTS Securities, by submitting
a written request to Merrill Lynch & Co., Inc., Attn: Darryl W. Colletti,
Corporate Secretary's Office, 100 Church Street, 12th Floor, New York, New York
10080-6512.

                      WHERE YOU CAN FIND MORE INFORMATION

     We file reports, proxy statements and other information with the SEC. Our
SEC filings are also available over the Internet at the SEC's web site at
http://www.sec.gov. You may also read and copy any document we file by visiting
the SEC's public reference rooms in Washington, D.C., New York, New York, and
Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further
information about the public reference rooms. You may also inspect our SEC
reports and other information at the New York Stock Exchange, Inc., 20 Broad
Street, New York, New York 10005.

     We have filed a registration statement on Form S-3 with the SEC covering
the MITTS Securities and other securities. For further information on ML&Co.
and the MITTS Securities, you should refer to our registration statement and
its exhibits. This prospectus summarizes material provisions of contracts and
other documents that we refer you to. Because the prospectus may not contain
all the information that you may find important, you should review the full
text of these documents. We have included copies of these documents as exhibits
to our registration statement of which this prospectus is a part.


               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

     The SEC allows us to incorporate by reference the information we file with
them, which means:

     o    incorporated documents are considered part of the prospectus;

     o    we can disclose important information to you by referring you to
          those documents; and

     o    information that we file with the SEC will automatically update and
          supersede this incorporated information.

     We incorporate by reference the documents listed below which were filed
with the SEC under the Exchange Act:

   
     o    annual report on Form 10-K for the year ended December 25, 1998; and

     o    current reports on Form 8-K dated December 28, 1998, January 19,
          1999, February 17, 1999, February 18, 1999, February 22, 1999 ,
          February 23, 1999 and March 26, 1999.
    

     We also incorporate by reference each of the following documents that we
will file with the SEC after the date of this prospectus until this offering is
completed or after the date of this initial registration statement and prior to
effectiveness of the registration statement:

     o    reports filed under Sections 13(a) and (c) of the Exchange Act;

     o    definitive proxy or information statements filed under Section 14 of
          the Exchange Act in connection with any subsequent stockholders'
          meeting; and

     o    any reports filed under Section 15(d) of the Exchange Act.

     You should rely only on information contained or incorporated by reference
in this prospectus. We have not, and MLPF&S has not, authorized any other
person to provide you with different information. If anyone provides you with
different or inconsistent information, you should not rely on it. We are not,
and MLPF&S is not, making an offer to sell these securities in any jurisdiction
where the offer or sale is not permitted.

     You should assume that the information appearing in this prospectus is
accurate as of the date of this prospectus only. Our business, financial
condition and results of operations may have changed since that date.

     You may request a copy of any filings referred to above (excluding
exhibits), at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan, Jr., Corporate Secretary's Office, Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.


                              PLAN OF DISTRIBUTION

     This prospectus has been prepared in connection with secondary sales of
the MITTS Securities and is to be used by MLPF&S when making offers and sales
related to market-making transactions in the MITTS Securities.

     MLPF&S may act as principal or agent in these market-making transactions.

     The MITTS Securities may be offered on the AMEX or off the exchange in
negotiated transactions or otherwise.

     The distribution of the MITTS Securities will conform to the requirements
set forth in the applicable sections of Rule 2720 of the Conduct Rules of the
NASD.

                                    EXPERTS

   
     The consolidated financial statements and the related financial statement
schedule incorporated in this prospectus by reference from the Annual Report on
Form 10-K of Merrill Lynch & Co., Inc. and subsidiaries have been audited by
Deloitte & Touche LLP, independent auditors, as stated in their reports (which
express an unqualified opinion and which report on the consolidated financial
statements includes an explanatory paragraph for the change in accounting method
for certain internal-use software development costs), which are incorporated
herein by reference, and have been so incorporated in reliance upon the reports
of such firm given upon their authority as experts in accounting and auditing.
    

<PAGE>
   
The information in this prospectus is not complete and may be changed. We may
not sell these securities until the registration statement filed with the
Securities and Exchange Commission is effective. This prospectus is not an
offer to sell these securities and it is not soliciting an offer to buy these
securities in any state where the offer or sale is not permitted.
    


   
                             Subject to Completion
                  Preliminary Prospectus dated March 29, 1999

P R O S P E C T U S

                           Merrill Lynch & Co., Inc.

         5 3/4% STock Return Income DEbt Securities(SM) due June 1, 2000

                             "STRIDES(SM) Securities"
             Payable with common stock of Lucent Technologies Inc.

                          or cash with an equal value
                        ($10 principal amount per unit)

     Merrill Lynch & Co., Merrill Lynch, Pierce, Fenner & Smith Incorporated,
our wholly-owned subsidiary, will use this prospectus when making offers and
sales related to market-making transactions in the STRIDES Securities.

<TABLE>
<CAPTION>

The STRIDES Securities:                                                                   Payment at Maturity: 
<S>                                                                  <C>
o  On June 1 and December 1 of each year, beginning                   o  On the maturity date, for each unit of STRIDES
   June 1, 1999, we will pay you interest at a rate of                   Securities you own, we will pay you the redemption
   5 3/4% per year for each unit of STRIDES Securities                   amount which is equal to the lesser of:
   you own.                                                                o    the capped value of $13.00 and
o  We will not redeem the STRIDES Securities before the                    o    the product of
   maturity date.                                                               o    $10 and
o  Senior unsecured debt securities of ML&Co.                                   o    the quotient of (a) the average of the
o  Linked to the value of the common stock of Lucent.                                closing prices of the common stock of
o  The STRIDES Securities are listed on the American                                 Lucent during a number of days before
   Stock Exchange under the symbol "LTS". The common                                 the maturity date and (b) the starting
   stock of Lucent is listed on the New York Stock                                   value of $90.3125.
   Exchange under the symbol "LU".                                    o  We will pay you the redemption amount either in
                                                                         shares of common stock of Lucent or an equivalent
                                                                         amount in cash.

                                                                      o  The redemption amount will not exceed $13.00.

                                                                      o  You may receive less at maturity than the initial
                                                                         issue price of each unit of STRIDES Securities if
                                                                         the redemption amount is less than $10.
</TABLE>


     Investing in the STRIDES Securities involves risks, including the risk
                  that your investment may result in a loss.
                    See "Risk Factors" beginning on page 3.
    

     Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if
this prospectus or the accompanying prospectus is truthful or complete. Any
representation to the contrary is a criminal offense.

   
         The sale price of the STRIDES Securites will be the prevailing price
at the time of sale.

                                 --------------
                              Merrill Lynch & Co.
                                ---------------

            The date of this prospectus is ________________, 1999.

"STock Return Income DEbt Securities" and "STRIDES" are service marks owned by
ML&Co.
    





                               TABLE OF CONTENTS

                                                                     Page
                                                                     ----
   
RISK FACTORS...........................................................3

MERRILL LYNCH & CO., INC...............................................7

RATIO OF EARNINGS TO FIXED CHARGES.....................................8

DESCRIPTION OF THE STRIDES SECURITIES..................................9

COMMON STOCK OF LUCENT................................................18

OTHER TERMS...........................................................18

WHERE YOU CAN FIND MORE INFORMATION...................................22

INCORPORATION OF INFORMATION WE FILE WITH THE SEC.....................22

PLAN OF DISTRIBUTION..................................................23

EXPERTS...............................................................23
    


                                  RISK FACTORS


   
     Your investment in the STRIDES Securities will involve certain risks. You
should consider carefully the following discussion of risks before you decide
that an investment in the STRIDES Securities is suitable for you.

You may suffer a loss on your investment

     You should be aware that at maturity the amount you will receive may be
less than the amount you paid for the STRIDES Securities. If the ending value
is less than the starting value, the redemption amount you will receive will be
less than the amount you paid for the STRIDES Securities and, therefore, your
investment in the STRIDES Securities will result in a loss to you. When you
invest in the STIDES Securities, you assume the risk that the market value of
the common stock of Lucent may decline, and that the decline could be
substantial.

Your investment in the STRIDES Securities may differ from an investment in
other equity securities

     As a holder of the STRIDES Securities, unlike a holder of common stock of
Lucent , you will not be entitled to receive any dividends that may be payable
on common stock of Lucent. When we calculate the starting value and the ending
value, we do not take into consideration the value of cash dividends paid on
the common stock of Lucent, other than an extraordinary dividend. Therefore,
any return on the STRIDES Securities will not be the same as the return that
you could earn by directly owning the common stock of Lucent and receiving the
dividends paid on that stock.

Your investment in the STRIDES Securities may differ from an investment in
other debt securities

     The terms of the STRIDES Securities differ from the terms of ordinary debt
securities because the redemption amount ML&Co. will pay on the maturity date
is not a fixed amount. The redemption amount is based on the price of the
common stock of Lucent on five or, under the circumstances described in this
prospectus, fewer than five trading days shortly before the maturity date and
is subject to the capped value of $13.00. Because the price of the common stock
of Lucent is subject to market fluctuations, the amount of cash or the value of
the common stock of Lucent paid to you on the maturity date may be more or less
than the principal amount of the STRIDES Securities.

Other events could affect the market price of the common stock of Lucent and,
therefore, the redemption amount you will receive on the maturity date

     Although the redemption amount that you are entitled to receive on the
maturity date is subject to adjustment for corporate events relating to Lucent
and the common stock of Lucent, the adjustments described in this prospectus do
not cover all events that could affect the market price of the common stock of
Lucent. These events include a partial tender or exchange offer for the common
stock of Lucent by Lucent or any third party. These events may adversely affect
the market value of the STRIDES Securities or any common stock of Lucent
allocated during the calculation period, but not received by you until the
maturity date.

 There may be a limited opportunity for equity appreciation

     You should understand that the opportunity to participate in possible
increases in the price of common stock of Lucent through an investment in the
STRIDES Securities is limited because any amount that you receive on the
maturity date will never exceed the capped value of $13.00. The capped value
represents an appreciation of 30% over the initial price of the STRIDES
Securities. However, if the price of the common stock of Lucent declines over
the term of the STRIDES Securities, you will realize the entire decline in
value of the STRIDES Securities, and may lose all or part of your investment in
the STRIDES Securities. You cannot assume that the amount that you receive on
the maturity date will be equal to or greater than the initial issue price of
the STRIDES Securities.

There may be an uncertain trading market for the STRIDES Securities in the
future

     Although the STRIDES Securities are listed on the AMEX under the trading
symbol "LTS", you cannot assume that a trading market will continue to exist
for the STRIDES Securites. If a trading market in the STRIDES Securities
continues to exist, you cannot assume that there will be liquidity in the
trading market. The continued existence of a trading market for the STRIDES
Securities will depend on the financial performance of the Company and other
factors such as the appreciation, if any, in the price of the common stock of
Lucent. In addition, it is unlikely that the secondary market price of the
STRIDES Securities will correlate exactly with the value of common stock of
Lucent.

     If the trading market for the STRIDES Securities is limited and you do not
wish to hold you investment until maturity, there may be a limited number of
buyers when you decide to sell your STRIDES Securities . This may affect the
price you receive if you sell before maturity.

There are many factors affecting the trading value of the STRIDES Securities

     We believe that the market value of the STRIDES Securities will be
affected by the value of the common stock of Lucent and by a number of other
factors. Some of these factors are interrelated in complex ways; as a result,
the effect of any one factor may be magnified or mitigated by the effect of
another factor. The following paragraphs describe the expected effect on the
market value of the STRIDES Securities given a change in a specific factor,
assuming all other conditions remain constant.

o    Value of the common stock of Lucent . The market value of the STRIDES
     Securities will depend substantially on the value of the common stock of
     Lucent . In general, the value of the STRIDES Securities will decrease as
     the value of the common stock of Lucent decreases and the value of the
     STRIDES Securities will increase as the value of the common stock of
     Lucent increases. However, as the value of the Common Stock increases or
     decreases, we do not expect the value of the STRIDES Securities to
     increase or decrease at the same rate as the change in value of the common
     stock of Lucent. Because the value of the STRIDES Securities on the
     maturity date cannot be greater than the capped value of $13.00, the
     STRIDES Securities will generally not trade in the secondary market
     significantly above the capped value. In addition, political, economic and
     other developments that affect the capital markets generally and the
     market segment of which Lucent is a part may also affect the value of the
     common stock of Lucent and the value of the STRIDES Securities.

o    Interest rates. In general, we anticipate that if U.S. interest rates
     increase, the trading value of the STRIDES Securities will decrease.
     Conversely, if U.S. interest rates decrease, the trading value of the
     STRIDES Securities will increase. Generally, fluctuations in interest
     rates will affect the U.S. economy and, in turn, the value of the common
     stock of Lucent . Rising interest rates may lower the value of the common
     stock of Lucent and, as a result, the value of the STRIDES Securities.
     Falling interest rates may increase the value of the common stock of
     Lucent and, as a result, may increase the value of the STRIDES Securities.

o    Volatility of the common stock of Lucent . Volatility is the term used to
     describe the size and frequency of market fluctuations. Generally, if the
     volatility of the common stock of Lucent increases, we expect that the
     trading value of the STRIDES Securities will decrease . Conversely, if the
     volatility of the common stock of Lucent decreases, we expect that the
     trading value of the STRIDES Securities will increase.

o    Time remaining to maturity. We believe that before the maturity date the
     STRIDES Securities will trade at a value above or below that which would
     be expected based on the value of the common stock of Lucent . Generally,
     as the time remaining to maturity decreases, the value of the STRIDES
     Securities will approach the redemption amount that would be payable at
     maturity based on the then current value of the common stock of Lucent. As
     a result, as the time remaining to maturity decreases, any discount or
     premium attributed to the trading value of the STRIDES Securities will
     diminish, increasing or decreasing the trading value of the STRIDES
     Securities, as applicable.

o    Dividend yields. Generally, if the dividend yield on the common stock of
     Lucent increases, we expect that the value of the STRIDES Securities will
     decrease. Conversely, if the dividend yield on the common stock of Lucent
     decreases, we expect that the value of the STRIDES Securities will
     increase.

o    Changes in our credit ratings. Our credit ratings are an assessment of our
     ability to pay our obligations. Consequently, real or anticipated changes
     in our credit ratings may affect the trading value of the STRIDES
     Securities. However, because your return on your STRIDES Securities is
     dependent upon factors in addition to our ability to pay our obligations
     under the STRIDES Securities, such as the percentage increase in the value
     of the index at maturity, an improvement in our credit ratings will not
     reduce investment risks related to the STRIDES Securities.

     It is important for you to understand that a decrease in the trading value
of the STRIDES Securities resulting from the effect of one of the factors
specified above, such as an increase in interest rates, may offset some or all
of any increase in the trading value of the STRIDES Securities attributable to
another factor, such as an increase in the value of the common stock of Lucent.

     In general, assuming all relevant factors are held constant, we expect
that the effect on the trading value of the STRIDES Securities of a given
change in most of the factors listed above will be less if it occurs later in
the term of the STRIDES Securities than if it occurs earlier in the term of the
STRIDES Securities. However, so long as the value of the common stock of Lucent
is less than 30% above the starting value, we expect that the effect on the
trading value of the STRIDES Securities of a given increase or decrease in the
value of the common stock of Lucent will be greater if it occurs later in the
term of the STRIDES Securities than if it occurs earlier in the term of the
STRIDES Securities.

Lucent has no obligations with respect to the STRIDES Securities

     We are not affiliated with Lucent, and Lucent has no obligations with
respect to the STRIDES Securities or amounts to be paid to you, including any
obligation to take our needs or yours, as holders of the STRIDES Securities,
into consideration for any reason. Lucent will not receive any of the proceeds
of the offering of the STRIDES Securities . Lucent is not responsible for, and
has not participated in, the determination or calculation of the amount you may
receive on the maturity date. In addition, Lucent is not involved with the
administration or trading of the STRIDES Securities .

As a holder of STRIDES Securities, you have no stockholder's rights with
respect to the common stock of Lucent

     You will not be entitled to any rights with respect to the common stock of
Lucent , including the right to receive dividends or other distributions,
voting rights and the right to tender or exchange common stock of Lucent in any
tender or exchange offer by Lucent or any third party.

Purchase and sales by us and our affiliates may affect your return

     We and our affiliates may from time to time buy or sell the common stock
of Lucent for our own accounts for business reasons or in connection with
hedging our obligations under the STRIDES Securities. These transactions could
affect the price of the common stock of Lucent in a manner that would be
adverse to your investment in the STRIDES Securities.

Amounts payable on the MITTS Securities may be limited by state law

     The indenture under which the STRIDES Securities are issued is governed by
New York State. New York has usury laws that limit the amount of interest that
can be charged and paid on loans, which includes debt securities like the
STRIDES Securities. Under present New York law, the maximum rate of interest is
25% per annum on a simple interest basis. This limit may not apply to debt
securities in which $2,500,000 or more has been invested.
    

     While we believe that New York law would be given effect by a state or
Federal court sitting outside of New York, many other states also have laws
that regulate the amount of interest that may be charged to and paid by a
borrower. We will promise, for your benefit, to the extent permitted by law,
not to voluntarily claim the benefits of any laws concerning usurious rates of
interest.

   
Potential  conflicts of interest

     Our subsidiary, Merrill Lynch, Pierce, Fenner & Smith Incorporated or
MLPF&S, is our agent for the purposes of calculating the value of the common
stock of Lucent and the amount you will receive at maturity. The role of MLPF&S
as our subsidiary and its responsibilities as calculation agent for the STRIDES
Securities could give rise to conflicts of interests . These conflicts could
occur, for instance, in connection with its determination as to whether a
market disruption event has occurred or in connection with judgments that it
would be required to make with respect to certain antidilution and
reorganization adjustments to the closing price. See "Description of the
STRIDES Securities--Dilution and Reorganization Adjustments" in this
prospectus. MLPF&S is required to carry out its duties as calculation agent in
good faith and using its reasonable judgment. However, you should be aware that
because we control the calculation agent, potential conflicts of interest could
arise.

     We have entered into an arrangement with one of our subsidiaries to hedge
the market risks associated with our obligation to pay the redemption amount
due at maturity. This subsidiary expects to make a profit in connection with
this arrangement. We did not seek competitive bids for this arrangement from
unaffiliated parties.

Other considerations

     You should also consider the tax consequences of investing in the STRIDES
Securities, which are uncertain. We suggest that you consult your tax advisor.
    






   
                           MERRILL LYNCH & CO., INC.

     We are a holding company that, through our U.S. and non-U.S. subsidiaries
and affiliates such as Merrill Lynch, Pierce, Fenner & Smith Incorporated,
Merrill Lynch Government Securities Inc., Merrill Lynch Capital Services, Inc.,
Merrill Lynch International, Merrill Lynch Capital Markets Bank Ltd., Merrill
Lynch Asset Management L.P. and Merrill Lynch Mercury Asset Management,
provides investment, financing, advisory, insurance, and related products on a
global basis, including:

o    securities brokerage, trading and underwriting;

o    investment banking, strategic services, including mergers and acquisitions
     and other corporate finance advisory activities;

o    asset management and other investment advisory and recordkeeping services;

o    trading and brokerage of swaps, options, forwards, futures and other
     derivatives;

o    securities clearance services;

o    equity, debt and economic research;

o    banking, trust and lending services, including mortgage lending and
     related services; and

o    insurance sales and underwriting services.

     We provide these products and services to a wide array of clients,
including individual investors, small businesses, corporations, governments,
governmental agencies and financial institutions.

     Our principal executive office is located at World Financial Center, North
Tower, 250 Vesey Street, New York, New York 10281; our telephone number is
(212) 449-1000.

     If you want to find more information about us, please see the sections
entitled "Where You Can Find More Information" and "Incorporation of
Information We File with the SEC" in this prospectus.

     In this prospectus, "ML&Co.", "we", "us" and "our" refer specifically to
Merrill Lynch & Co., Inc., the holding company. ML&Co. is the issuer of the
STRIDES Securities described in this prospectus.
    








   
                       RATIO OF EARNINGS TO FIXED CHARGES

     In 1998, we acquired the outstanding shares of Midland Walwyn, Inc., in a
transaction accounted for as a pooling-of-interests. The following information
for the fiscal years 1994 through 1997 has been restated as if the two entities
had always been combined.

     The following table sets forth our historical ratios of earnings to fixed
charges for the periods indicated:

<TABLE>
<CAPTION>

                                                     Year Ended Last Friday in December
                                                 1994     1995     1996     1997      1998
                                                 -----------------------------------------
<S>                                              <C>      <C>      <C>      <C>      <C>
Ratio of earnings to fixed charges(a).........    1.2      1.2      1.2      1.2      1.1

- ----------
(a)      The effect of combining Midland Walwyn did not change the ratios reported for the fiscal years 1994 
         through 1997.
</TABLE>

     For the purpose of calculating the ratio of earnings to fixed charges,
"earnings" consist of earnings from continuing operations before income taxes
and fixed charges, excluding capitalized interest and preferred security
dividend requirements. "Fixed charges" consist of interest costs, the interest
factor in rentals, amortization of debt issuance costs, preferred security
dividend requirements of subsidiaries, and capitalized interest.
    


                     DESCRIPTION OF THE STRIDES SECURITIES

   
     ML&Co. issued the STRIDES Securities as a series of senior debt securities
under the 1983 indenture, which is more fully described in this prospectus.

     Upon the occurrence of an Event of Default with respect to the STRIDES
Securities, beneficial owners of the STRIDES Securities may accelerate the
maturity of the STRIDES Securities, as described under "--Events of Default and
Acceleration" and "Other Events of Default" in this prospectus.

     The STRIDES Securities were issued in denominations of whole units.
    

     The STRIDES Securities do not have the benefit of any sinking fund.

Interest

   
     The STRIDES Securities will bear interest at a rate of 5 3/4% per annum of
the principal amount of each unit from December 1, 1998, or from the most
recent Interest Payment Date (as defined below) to which interest has been paid
or provided for, until the maturity date. Interest on the STRIDES Securities
will be payable in cash semi-annually in arrears on June 1 and December 1 of
each year (each, an "Interest Payment Date"), commencing June 1, 1999, to the
persons in whose names the STRIDES Securities are registered at the close of
business on the May 15 and November 15, whether or not a Business Day,
immediately preceding such Interest Payment Date. Interest on the STRIDES
Securities will be computed on the basis of a 360-day year of twelve 30-day
months. If an Interest Payment Date falls on a day that is not a Business Day,
the interest payment to be made on the Interest Payment Date will be made on
the next succeeding Business Day with the same force and effect as if made on
the Interest Payment Date, and no additional interest will accrue as a result
of the delayed payment.
    

Payment at Maturity

   
     The maturity date of the STRIDES Securities is June 1, 2000. On the
maturity date, the beneficial owner of each STRIDES Security will receive an
amount equal to the value of the Redemption Amount of the STRIDES Security.

     The "Redemption Amount" will be determined by the Calculation Agent and,
for each unit, will equal the lesser of:

                    o    $13.00 (the "Capped Value"); and
                    o    $10 per unit  X  ( Ending Value  )
                                          (---------------)
                                          ( Starting Value)

     On the maturity date, holders of the STRIDES Securities will receive, for
each unit of the STRIDES Securities then held, a number of shares of common
stock of Lucent equal to the Redemption Amount divided by the Ending Value and
accrued interest from the last Interest Payment Date for which interest was
paid.

     If the Company elects to pay the Redemption Amount in cash instead of in
shares of common stock of Lucent to which a holder of the STRIDES Securities
would otherwise be entitled to receive, the Company will pay the holder an
amount of cash equal to the Redemption Amount.

     The "Starting Value" means $90.3125 which was the Closing Price (as
defined in this prospectus) of one share of common stock of Lucent on November
24, 1998.

     The "Ending Value" will be determined by the Calculation Agent and will
equal the average or arithmetic mean of the Closing Prices of the common stock
of Lucent determined on each of the first five Calculation Days during the
Calculation Period, subject to adjustment for certain events described under
"--Dilution and Reorganization Adjustments". If there are fewer than five
Calculation Days in the Calculation Period, then the Closing Prices used to
determine the Ending Value will equal the average or arithmetic mean of the
Closing Prices of the common stock of Lucent on the Calculation Days. If there
is only one Calculation Day, then the Ending Value will equal the Closing Price
of the common stock of Lucent on the Calculation Day. If no Calculation Days
occur during the Calculation Period, then the Ending Value will equal the
Closing Price of the common stock of Lucent determined on the last scheduled
Calculation Day in the Calculation Period, regardless of the occurrence of a
Market Disruption Event on that day.

     The "Calculation Period" means the period from and including the seventh
scheduled Calculation Day before the maturity date to and including the second
scheduled Calculation Day before the maturity date.
    

     "Calculation Day" means any Trading Day on which a Market Disruption Event
has not occurred.

   
     "Trading Day" is a day on which the common stock of Lucent (A) is not
suspended from trading on any national or regional securities exchange or
association or over-the-counter market at the close of business and (B) has
traded at least once on a national or regional securities exchange or
association or over-the-counter market that is the primary market for the
trading of the common stock of Lucent .

     "Market Disruption Event" means the occurrence or existence on any Trading
Day during the one-half hour period that ends when the Closing Price is
determined of any suspension of, or limitation imposed on, trading in the
common stock of Lucent on the NYSE or other market or exchange, if applicable.

     "Closing Price" means the product of (i) the Share Ratio and (ii) the last
sales price of one share of common stock of Lucent as reported by the NYSE or,
if the security is not trading on the NYSE on any date, as reported in the
composite transactions for the principal United States securities exchange on
which the security is so listed, or if the security is not so listed on a
United States national or regional securities exchange, the last quoted bid
price for the security in the over-the-counter market as reported by the
National Quotation Bureau or similar organization, or, if a bid price is not
available, the market value of the security on the date as determined by a
nationally recognized independent investment banking firm retained for this
purpose by the Calculation Agent.

     "Share Ratio" means, initially 1.0, but will be subject to adjustment for
certain events described under "--Dilution and Reorganization Adjustments".
    

     "Business Day" means each Monday, Tuesday, Wednesday, Thursday and Friday
that is not a day on which banking institutions in The City of New York are
authorized or obligated by law to close and that is a Trading Day on the NYSE.

     All determinations made by the Calculation Agent shall be at the sole
discretion of the Calculation Agent and, absent a determination by the
Calculation Agent of a manifest error, shall be conclusive for all purposes and
binding on the Company and beneficial owners of the STRIDES Securities.

Fractional Shares

   
     ML&Co. will not distribute fractional shares of common stock of Lucent on
the maturity date. In the event the Company elects to pay the Redemption Amount
in shares of common stock of Lucent , all amounts due to any holder of the
STRIDES Securities in respect of the total number of units held by the holder
will be aggregated, and in lieu of delivering any fractional share to the
holder, the holder will receive the cash value of the fractional share based on
the Ending Value.
    


Examples of Redemption Amount Calculations

   
      The following examples  illustrate Redemption Amount calculations:

     Example One--Ending Value is 50% less than Starting Value
          Starting Value: $90.31
          Hypothetical Ending Value: $45.16
          Redemption Amount (per  unit) = $10.00 X  45.16
                                                   -----
                                                    90.31 = $5.00.

          Total payment on the maturity date (per unit)   = $5.00.

     Example Two--Ending Value is 20% greater than Starting Value
          Starting Value: $90.31
          Hypothetical Ending Value: $108.38
          Redemption Amount (per  unit) = $10.00 X 108.38
                                                   ------
                                                    90.31 = $12.00.

          Total payment on the maturity date (per unit)   = $12.00.

     Example Three--Ending Value is 50% greater than Starting Value
          Starting Value: $90.31
          Hypothetical Ending Value: $135.47
          Redemption Amount (per  unit) = $10.00 X 135.47
                                                   -----
                                                    90.31 = $13.00 (Redemption
                                                                   Amount
                                                                   cannot
                                                                   be
                                                                   greater
                                                                   than
                                                                   Capped
                                                                   Value).

         Total payment on the  maturity date (per  unit) = $13.00
    


Hypothetical Returns

   
     The following table illustrates, for a range of hypothetical Ending
Values:
    

     o    the percentage change over the Starting Value;

   
     o    the total amount payable on the maturity date for each $10 principal
          amount of STRIDES Securities;

    

     o    the total rate of return to beneficial owners of the STRIDES
          Securities;

   
     o    the pretax annualized rate of return to beneficial owners of STRIDES
          Securities; and

     o    the pretax annualized rate of return of the common stock of Lucent .
    

<TABLE>
<CAPTION>

                                                                                               
   
                                              Total Amount                          Pretax      Pretax Annualized Rate
                      Percentage Change      Payable on the                       Annualized       of Return of the  
 Hypothetical         Over the Starting       maturity date     Total Rate of        Rate of         Lucent Common   
   Ending Value             Value              per unit           Return(1)       Return(2)(3)        Stock(3)(4)  
   ------------       -----------------      --------------     ------------      ------------   --------------------- 
    
                                                                                               
   <S>                    <C>                  <C>                <C>               <C>                   <C>   
     45.16                -50.00%               $ 5.00            -41.375%          -33.94%               -41.11%
     54.19                -40.00%               $ 6.00            -31.375%          -24.46%               -31.16%
     63.22                -30.00%               $ 7.00            -21.375%          -15.93%               -22.26%
     72.25                -20.00%               $ 8.00            -11.375%           -8.14%               -14.17%
     81.28                -10.00%               $ 9.00             -1.375%           -0.95%                -6.73%
     90.31(5)               0.00%              $ 10.00              8.625%            5.75%                 0.18%
     99.34                 10.00%              $ 11.00             18.625%           12.03%                 6.64%
    108.38                 20.00%              $ 12.00             28.625%           17.95%                12.72%
    117.41                 30.00%              $ 13.00             38.625%           23.57%                18.48%
    126.44                 40.00%              $ 13.00             38.625%           23.57%                23.94%
    135.47                 50.00%              $ 13.00             38.625%           23.57%                29.15%
    144.50                 60.00%              $ 13.00             38.625%           23.57%                34.14%
    153.53                 70.00%              $ 13.00             38.625%           23.57%                38.92%
    162.56                 80.00%              $ 13.00             38.625%           23.57%                43.51%
    171.59                 90.00%              $ 13.00             38.625%           23.57%                47.94%
    180.63                100.00%              $ 13.00             38.625%           23.57%                52.22%
</TABLE>

- ----------                                                     
                                                           
(1) The rates of return specified in this column assume a coupon yield of 5
    3/4% per annum.
(2) The annualized rates of return specified in this column assume a constant 
    coupon yield of 5 3/4% per annum paid semi-annually from December 1, 1998
    and applied to the principal amount of each STRIDES Security.
(3) The annualized rates of return specified in these columns are calculated
    on a semi-annual bond equivalent basis.
4)  The rates of return specified in this column assume
    (a)  a constant dividend yield of 0.18% per annum, paid quarterly from the
         date of initial delivery of STRIDES Securities, applied to the value
         of the common stock of Lucent at the end of each the quarter assuming
         the value increases or decreases linearly from the Starting Value to
         the applicable hypothetical Ending Value;
    (b)  no transaction fees or expenses;
    (c)  a term for the STRIDES Securities from December 1, 1998 to June 1,
         2000; and
    (d)  a final value of the common stock of Lucent equal to the Ending 
         Value.

    The dividend yield of the common stock of Lucent as of November 24, 1998
was approximately 0.18%.

(5) The actual Starting Value, as determined on November 24, 1998, was
    $90.3125.

     The above figures are for purposes of illustration only. The actual
Redemption Amount and the resulting total and pretax annualized rate of return
that investors will receive will depend entirely on the actual Ending Value
determined by the Calculation Agent as provided in this prospectus.
    


Dilution and Reorganization Adjustments

   
     The Closing Price of the common stock of Lucent used to determine the
Ending Value is subject to adjustment by the Calculation Agent as follows:

          1. If common stock of Lucent is subject to a stock split or reverse
     stock split, then once the split has become effective, the Share Ratio
     will be adjusted to equal the product of the prior Share Ratio and the
     number of shares which a holder of one share of common stock of Lucent
     before the effective date of the stock split or reverse stock split would
     have owned or been entitled to receive immediately following the effective
     date.

          2. If common stock of Lucent is subject to a stock dividend or
     issuance of additional shares of common stock of Lucent that is given
     ratably to all holders of shares of common stock of Lucent , then once the
     shares are trading ex-dividend, the Share Ratio will be adjusted so that
     the new Share Ratio shall equal the prior Share Ratio plus the product of
     (a) the number of shares of common stock of Lucent issued with respect to
     one share of common stock of Lucent and (b) the prior Share Ratio.

          3. There will be no adjustments to the Share Ratio to reflect cash
     dividends or distributions paid with respect to common stock of Lucent
     other than distributions described in clause (e) of paragraph 5 below and
     Extraordinary Dividends as described below. An "Extraordinary Dividend"
     means, with respect to any consecutive 12-month period, all cash dividends
     or other distributions with respect to common stock of Lucent to the
     extent the dividends exceed on a per share basis 10% of the average
     Closing Price during the period, less any the dividends for which a prior
     adjustment was previously made. If an Extraordinary Dividend occurs with
     respect to common stock of Lucent , the Share Ratio will be adjusted on
     the Trading Day preceding the payment of any dividend, the payment of
     which caused all cash dividends or other distributions made with respect
     to the common stock of Lucent over the past 12-month period to exceed on a
     per share basis 10% of the average Closing Price during the period, less
     any the dividends for which a prior adjustment was previously made (the
     "ex-dividend date"), so that the new Share Ratio will equal the product of
     (A) the then current Share Ratio, and (B) a fraction, (1) the numerator of
     which is the Closing Price on the Trading Day preceding the ex-dividend
     date, and (2) the denominator of which is the amount by which the Closing
     Price on the Trading Day preceding the ex-dividend date exceeds the
     Extraordinary Dividend Amount.

          The "Extraordinary Dividend Amount" with respect to an Extraordinary
     Dividend for common stock of Lucent will equal (a) in the case of cash
     dividends or other distributions that constitute quarterly dividends, the
     amount per share of the Extraordinary Dividend minus the amount per share
     of the immediately preceding non-Extraordinary Dividend or (b) in the case
     of cash dividends or other distributions that do not constitute quarterly
     dividends, the amount per share of the Extraordinary Dividend. To the
     extent an Extraordinary Dividend is not paid in cash, the value of the
     non-cash component will be determined by the Calculation Agent, whose
     determination shall be conclusive. A distribution on the common stock of
     Lucent described in clause (e) of paragraph 5 below that also constitutes
     an Extraordinary Dividend shall cause an adjustment to the Share Ratio
     pursuant only to clause (e) of paragraph 5.

          4. If Lucent issues transferable rights or warrants to all holders of
     common stock of Lucent to subscribe for or purchase common stock of
     Lucent, including new or existing rights to purchase common stock of
     Lucent pursuant to a shareholders rights plan or arrangement, once a
     triggering event shall have occurred thereunder, at an exercise price per
     share less than the Closing Price of common stock of Lucent on (a) the
     date the exercise price of the rights or warrants is determined and (b)
     the expiration date of the rights or warrants, and, in each case, if the
     expiration date of the rights or warrants precedes the maturity date, then
     the Share Ratio will be adjusted to equal the product of the prior Share
     Ratio and a fraction, (1) the numerator of which shall be the number of
     shares of common stock of Lucent outstanding immediately before the
     issuance plus the number of additional shares of common stock of Lucent
     offered for subscription or purchase pursuant to the rights or warrants
     and (2) the denominator of which shall be the number of shares of common
     stock of Lucent outstanding immediately before the issuance plus the
     number of additional shares of common stock of Lucent which the aggregate
     offering price of the total number of shares of common stock of Lucent so
     offered for subscription or purchase pursuant to the rights of warrants
     would purchase at the Closing Price on the expiration date of the rights
     or warrants, which shall be determined by multiplying the total number of
     shares offered by the exercise price of the rights or warrants and
     dividing the product so obtained by the Closing Price.

          5. If a "Reorganization Event" occurs, which means

               (a) any reclassification or change of common stock of Lucent has
          occurred,
    

               (b) Lucent, or any surviving entity or subsequent surviving
          entity of Lucent (a "Successor Entity") has been subject to a merger,
          combination or consolidation and is not the surviving entity,

   
               (c) any statutory exchange of securities of Lucent or any
          Successor Entity with another corporation has occurred, other than
          pursuant to clause (b) above),

               (d) Lucent is liquidated,

               (e) Lucent issues to all of its shareholders equity securities
          of an issuer other than Lucent, other than in a transaction described
          in clauses (b), (c) or (d above) (a "Spin-off Event") or

               (f) a tender or exchange offer is consummated for all the
          outstanding shares of Lucent, the Ending Value shall equal the 
          Reorganization Event Value (as defined below).

     The "Reorganization Event Value" shall be determined by the Calculation
     Agent and shall equal (a) the Transaction Value related to the relevant
     Reorganization Event, plus (b) interest on the Transaction Value accruing
     from the date of the payment or delivery of the consideration, if any,
     received in connection with the Reorganization Event until the stated
     maturity date at a fixed interest rate determined on the date of the
     payment or delivery equal to the interest rate that would be paid on a
     standard senior non-callable debt security of the Company with a term
     equal to the remaining term of the STRIDES Securities.

     "Transaction Value" means (a) for any cash received in any the
     Reorganization Event, an amount equal to the amount of cash received per
     share of common stock of Lucent multiplied by the Share Ratio in effect on
     the date all of the holders of shares of common stock of Lucent have
     agreed or have become irrevocably obligated to exchange the shares, (b)
     for any property other than cash or securities received in any
     Reorganization Event, the market value, as determined by the Calculation
     Agent, of the Exchange Property received for each share of common stock of
     Lucent at the date of the receipt of the Exchange Property multiplied by
     the then current Share Ratio and (c) for any security received in any
     Reorganization Event, an amount equal to the closing price per share of
     the security on the fifth Trading Day before the maturity date multiplied
     by the quantity of the security received for each share of common stock of
     Lucent multiplied by the then current Share Ratio. "Exchange Property"
     means the securities, cash or any other assets distributed in any
     Reorganization Event, including, in the case of a Spin-off Event, the
     share of common stock of Lucent with respect to which the spun-off
     security was issued.

     For purposes of paragraph 5 above, in the case of a consummated tender or
exchange offer for all Exchange Property of a particular type, Exchange
Property shall be deemed to include the amount of cash or other property paid
by the offeror in the tender or exchange offer with respect to the Exchange
Property in an amount determined on the basis of the rate of exchange in the
tender or exchange offer. In the event of a tender or exchange offer with
respect to Exchange Property in which an offeree may elect to receive cash or
other property, Exchange Property shall be deemed to include the kind and
amount of cash and other property received by offerees who elect to receive
cash.

     No adjustments to the Share Ratio will be required unless the Share Ratio
adjustment would require a change of at least 0.1% in the Share Ratio then in
effect. The Share Ratio resulting from any of the adjustments specified above
will be rounded to the nearest one thousandth, with five ten-thousandths being
rounded upward.

     No adjustments to the Share Ratio or to the Ending Value will be required
other than those specified above. However, the Company may, at its sole
discretion, cause the Calculation Agent to make additional adjustments to the
Share Ratio or to the Ending Value to reflect changes occurring in relation to
the common stock of Lucent or any other Exchange Property in other
circumstances where the Company determines that it is appropriate to reflect
the changes.

     MLPF&S, as Calculation Agent, will be solely responsible for the
determination and calculation of any adjustments to the Share Ratio or the
Ending Value and of any related determinations and calculations with respect to
any distributions of stock, other securities or other property or assets,
including cash, in connection with any corporate event described in paragraph 5
above, and its determinations and calculations with respect thereto shall be
conclusive.

     No adjustments will be made for certain other events, such as offerings of
common stock of Lucent by Lucent for cash or in connection with acquisitions or
the occurrence of a partial tender or exchange offer for the common stock of
Lucent by Lucent or any third party.

     ML&Co. will, within ten Business Days following the occurrence of an event
that requires an adjustment to the Share Radio or the Ending Value or, if the
Company is not aware of the occurrence of an event, as soon as practicable
after becoming so aware, provide written notice to the trustee. The trustee in
turn shall provide notice to the holders of the STRIDES Securities of the
occurrence of the event and, if applicable, a statement in reasonable detail
setting forth the adjusted Share Ratio or other formula to be used in
determining the Ending Value.
    

Events of Default and Acceleration

   
     In case an Event of Default with respect to any STRIDES Securities shall
have occurred and be continuing, the amount payable to a beneficial owner of a
STRIDES Security upon any acceleration permitted by the STRIDES Securities,
with respect to each $10 unit thereof, will be equal to the principal amount
and any accrued interest due thereon. If a bankruptcy proceeding is commenced
in respect of the Company, the claim of the beneficial owner of a STRIDES
Security may be limited, under Section 502(b)(2) of Title 11 of the United
States Code, to the principal amount of the STRIDES Security plus an additional
amount of contingent interest calculated as though the date of the commencement
of the proceeding were the maturity date of the STRIDES Securities.

     In case of default in payment of the STRIDES Securities, whether at any
Interest Payment Date, the maturity date or upon acceleration, from and after
any the date the STRIDES Securities shall bear interest, payable upon demand of
the beneficial owners thereof, at the rate of 5 3/4% per annum, to the extent
that payment of the interest shall be legally enforceable, on the unpaid amount
due and payable on the date in accordance with the terms of the STRIDES
Securities to the date payment of the amount has been made or duly provided
for.

Securities Depository

     Description of the Global Securities

     The STRIDES Securities are represented by one or more fully registered
global securities. Each global security has been deposited with, or on behalf
of, The Depository Trust Company or DTC (DTC, together with any successor
thereto, being a "depositary"), as depositary, registered in the name of Cede &
Co. (DTC's partnership nominee). Unless and until it is exchanged in whole or
in part for STRIDES Securities in definitive form, no global security may be
transferred except as a whole by the depositary to a nominee of the depositary
or by a nominee of the depositary to the depositary or another nominee of the
depositary or by the depositary or any nominee to a successor of the depositary
or a nominee of that successor.

     So long as DTC, or its nominee, is a registered owner of a global
security, DTC or its nominee, as the case may be, will be considered the sole
owner or holder of the STRIDES Securities represented by a global security for
all purposes under the 1983 indenture. Except as provided below, the beneficial
owners of the STRIDES Securities represented by a global security are not
entitled to have the STRIDES Securities represented by the global security
registered in their names, will not receive or be entitled to receive physical
delivery of the STRIDES Securities in definitive form and are not considered
the owners or holders under the 1983 indenture, including for purposes of
receiving any reports delivered by ML&Co. or the trustee pursuant to the 1983
indenture. Accordingly, each person owning a beneficial interest in a global
security must rely on the procedures of DTC and, if the person is not a
participant of DTC on the procedures of the participant through which the
person owns its interest, to exercise any rights of a holder under the 1983
indenture. ML&Co. understands that under existing industry practices, in the
event that ML&Co. requests any action of holders or that an owner of a
beneficial interest in a global security desires to give or take any action
which a holder is entitled to give or take under the 1983 indenture, DTC would
authorize the participants holding the relevant beneficial interests to give or
take action, and such participants would authorize beneficial owners owning
through such participants to give or take such action or would otherwise act
upon the instructions of beneficial owners. Conveyance of notices and other
communications by DTC to participants, by participants to indirect participants
and by participants and indirect participants to beneficial owners are governed
by arrangements among them, subject to any statutory or regulatory requirements
as may be in effect from time to time.

     DTC Procedures
    

     The following is based on information furnished by DTC:

   
     DTC is the securities depositary for the STRIDES Securities. The STRIDES
Securities have been issued as fully registered securities registered in the
name of Cede & Co. (DTC's partnership nominee). One or more fully registered
global securities have been issued for the STRIDES Securities in the aggregate
principal amount of such issue, and has been deposited with DTC.

     DTC is a limited-purpose trust company organized under the New York
Banking Law, a "banking organization" within the meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing corporation"
within the meaning of the New York Uniform Commercial Code, and a "clearing
agency" registered pursuant to the provisions of Section 17A of the 1934 Act.
DTC holds securities that its participants deposit with DTC. DTC also
facilitates the settlement among participants of securities transactions, such
as transfers and pledges, in deposited securities through electronic
computerized book-entry changes in participants' accounts, thereby eliminating
the need for physical movement of securities certificates. Direct participants
of DTC include securities brokers and dealers, banks, trust companies, clearing
corporations and certain other organizations. DTC is owned by a number of its
direct participants and by the NYSE, the AMEX and the National Association of
Securities Dealers, Inc. Access to the DTC's system is also available to others
such as securities brokers and dealers, banks and trust companies that clear
through or maintain a custodial relationship with a direct participant, either
directly or indirectly. The rules applicable to DTC and its participants are on
file with the SEC.

     Purchases of STRIDES Securities under DTC's system must be made by or
through direct participants, which will receive a credit for the STRIDES
Securities on DTC's records. The ownership interest of each beneficial owner is
in turn to be recorded on the records of direct and indirect participants.
Beneficial owners will not receive written confirmation from DTC of their
purchase, but beneficial owners are expected to receive written confirmations
providing details of the transaction, as well as periodic statements of their
holdings, from the direct participants or indirect participants through which
such beneficial owner entered into the transaction. Transfers of ownership
interests in the STRIDES Securities are to be accomplished by entries made on
the books of participants acting on behalf of beneficial owners.

     To facilitate subsequent transfers, all STRIDES Securities deposited with
DTC are registered in the name of DTC's partnership nominee, Cede & Co. The
deposit of STRIDES Securities with DTC and their registration in the name of
Cede & Co. effect no change in beneficial ownership. DTC has no knowledge of
the actual beneficial owners of the STRIDES Securities; DTC's records reflect
only the identity of the direct participants to whose accounts such STRIDES
Securities are credited, which may or may not be the beneficial owners. The
participants are responsible for keeping account of their holdings on behalf of
their customers.

     Conveyance of notices and other communications by DTC to direct
participants, by direct participants to indirect participants, and by direct
and indirect participants to beneficial owners are governed by arrangements
among them, subject to any statutory or regulatory requirements as may be in
effect from time to time.

     Neither DTC nor Cede & Co. will consent or vote with respect to the
STRIDES Securities. Under its usual procedures, DTC mails an omnibus proxy to
ML&Co. as soon as possible after the applicable record date. The omnibus proxy
assigns Cede & Co.'s consenting or voting rights to those direct participants
to whose accounts the STRIDES Securities are credited on the record date
(identified in a listing attached to the omnibus proxy).

     Principal, premium, if any, and/or interest, if any, payments on the
STRIDES Securities will be made in immediately available funds to DTC. DTC's
practice is to credit direct participants' accounts on the applicable payment
date in accordance with their respective holdings shown on the depositary's
records unless DTC has reason to believe that it will not receive payment on
such date. Payments by participants to beneficial owners will be governed by
standing instructions and customary practices, as is the case with securities
held for the accounts of customers in bearer form or registered in "street
name", and will be the responsibility of such participant and not of DTC, the
trustee or ML&Co., subject to any statutory or regulatory requirements as may
be in effect from time to time. Payment of principal, premium, if any, and/or
interest, if any, to DTC is the responsibility of ML&Co. or the trustee,
disbursement of such payments to direct participants is the responsibility of
DTC, and disbursement of such payments to the beneficial owners is the
responsibility of direct and indirect participants.

     Exchange for Certificated Securities

         If

     (a)  the depositary is at any time unwilling or unable to continue as
          depositary and a successor depositary is not appointed by ML&Co.
          within 60 days,

     (b)  ML&Co. executes and delivers to the trustee a company order to the
          effect that the global securities shall be exchangeable, and

     (c)  an Event of Default under the 1983 indenture has occurred and is
          continuing with respect to the STRIDES Securities, 

the global securities will be exchangeable for STRIDES Securities in definitive
form of like tenor and of an equal aggregate principal amount, in denominations
of $10 and integral multiples of $10. The definitive STRIDES Securities will be
registered in such name or names as the depositary shall instruct the trustee.
It is expected that such instructions may be based upon directions received by
the depositary from participants with respect to ownership of beneficial
interests in the global securities.

         In addition, ML&Co. may decide to discontinue use of the system of
book-entry transfers through the depositary. In that event, STRIDES Security in
definitive form will be printed and delivered.

     The information in this section concerning DTC and DTC's system has been
obtained from sources that ML&Co. believes to be reliable, but ML&Co. takes no
responsibility for its accuracy.
    


   
Same -Day Settlement and Payment

     All payments of interest and the Redemption Amount, to the extent that
payment of the Redemption Amount is made in cash, will be made by the Company
in immediately available funds so long as the STRIDES Securities are maintained
in book-entry form.


                             COMMON STOCK OF LUCENT
    

Lucent Technologies Inc.

     Lucent is a designer, developer and manufacturer of communications
systems, software and products. Lucent is engaged in the sale of public
communications systems, and is a supplier of systems or software to most of the
world's largest network operators. Lucent is also engaged in the sale of
business communications systems and in the sale of microelectronic components
for communications applications to manufacturers of communications systems and
computers. Lucent's research and development activities are conducted through
Bell Laboratories.

   
     Because the common stock of Lucent is registered under the Exchange Act,
Lucent is required to file periodically certain financial and other information
specified by the SEC. For more information about Lucent and the common stock of
Lucent that you may receive on the maturity date, information provided to or
filed with the SEC by Lucent with respect to its registered securities can be
located by reference to SEC file number 1-11639 and inspected at the SEC's
public reference facilities or accessed over the Internet through a web site
maintained by the SEC at http://www.sec.gov. In addition, information regarding
Lucent may be obtained from other sources including, but not limited to, press
releases, newspaper articles and other publicly disseminated information. We
make no representation or warranty as to the accuracy or completeness of any
such information.

     ML&Co. is not affiliated with Lucent, and Lucent has no obligations with
respect to the STRIDES Securities. This prospectus relates only to the STRIDES
Securities offered hereby and does not relate to the common stock of Lucent or
other securities of Lucent. The information contained in this prospectus
regarding Lucent has been derived from the publicly available documents
described in the preceding paragraph. ML&Co. has not participated in the
preparation of these documents or made any due diligence inquiries with respect
to Lucent in connection with the offering of the STRIDES Securities. ML&Co.
makes no representation that the publicly available documents or any other
publicly available information regarding Lucent are accurate or complete.
Furthermore, there can be no assurance that all events, including events that
would affect the accuracy or completeness of the publicly available documents
described in the preceding paragraph, occurring before the date of this
prospectus that would affect the trading price of the common stock of Lucent
and, therefore, the trading price of the STRIDES Securities, have been publicly
disclosed. Subsequent disclosure of any events or the disclosure of or failure
to disclose material future events concerning Lucent could affect the
Redemption Amount to be received at the maturity date and, therefore, the
trading value of the STRIDES Securities.

     From time to time, in the ordinary course of business, affiliates of
ML&Co. have engaged in certain investment banking activities on behalf of
Lucent as well as served as counterparty in certain other transactions.


                                  OTHER TERMS

     ML&Co. issued the STRIDES Securities as a series of senior debt securities
under the 1983 indenture, dated as of April 1, 1983, as amended and restated,
between ML&Co. and The Chase Manhattan Bank, as trustee. A copy of the 1983
indenture is filed as an exhibit to the registration statement relating to the
STRIDES Securities of which this prospectus is a part. The following summaries
of the material provisions of the 1983 indenture are not complete and are
subject to, and qualified in their entirety by reference to, all provisions of
the 1983 indenture, including the definitions of terms in the 1983 indenture.

     ML&Co. may issue series of senior debt securities from time to time under
the 1983 indenture, without limitation as to aggregate principal amount, in one
or more series and upon terms as ML&Co. may establish under the provisions of
the 1983 indenture.

     The 1983 indenture and the STRIDES Securities are governed by and
construed in accordance with the laws of the State of New York.

     ML&Co. may issue senior debt securities with terms different from those of
senior debt securities previously issued, and issue additional senior debt
securities of a previously issued series of senior debt securities.

     The senior debt securities are unsecured and rank equally with all other
unsecured and unsubordinated indebtedness of ML&Co. However, because ML&Co. is
a holding company, the rights of ML&Co. and its creditors, including the
holders of senior debt securities, to participate in any distribution of the
assets of any subsidiary upon its liquidation or reorganization or otherwise
are necessarily subject to the prior claims of creditors of the subsidiary,
except to the extent that a bankruptcy court may recognize claims of ML&Co.
itself as a creditor of the subsidiary. In addition, dividends, loans and
advances from certain subsidiaries, including MLPF&S, to ML&Co. are restricted
by net capital requirements under the Exchange Act, and under rules of
exchanges and other regulatory bodies.

Limitations Upon Liens

     ML&Co. may not, and may not permit any majority-owned subsidiary to,
create, assume, incur or permit to exist any indebtedness for borrowed money
secured by a pledge, lien or other encumbrance, other than those liens
specifically permitted by the 1983 indenture, on the Voting Stock owned
directly or indirectly by ML&Co. of any majority-owned subsidiary, other than a
majority-owned subsidiary which, at the time of the incurrence of the secured
indebtedness, has a net worth of less than $3,000,000, unless the outstanding
senior debt securities are secured equally and ratably with the secured
indebtedness.

     "Voting Stock" is defined in the 1983 indenture as the stock of the class
or classes having general voting power under ordinary circumstances to elect at
least a majority of the board of directors, managers or trustees of a
corporation provided that, for the purposes of the 1983 indenture, stock that
carries only the right to vote conditionally on the occurrence of an event is
not considered voting stock whether or not the event has happened.

Limitation on Disposition of Voting Stock of, and Merger and Sale of
Assets by, MLPF&S

     ML&Co. may not sell, transfer or otherwise dispose of any Voting Stock of
MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of its
Voting Stock, unless, after giving effect to any such transaction, MLPF&S
remains a Controlled Subsidiary.

     "Controlled Subsidiary" is defined in the 1983 indenture to mean a
corporation more than 80% of the outstanding shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

     In addition, ML&Co. may not permit MLPF&S to:

          o    merge or consolidate, unless the surviving company is a
               Controlled Subsidiary, or

          o    convey or transfer its properties and assets substantially as an
               entirety, except to one or more Controlled Subsidiaries.

Merger and Consolidation

     ML&Co. may consolidate or merge with or into any other corporation and
ML&Co. may sell, lease or convey all or substantially all of its assets to any
corporation, provided that:

     o    the resulting corporation, if other than ML&Co., is a corporation
          organized and existing under the laws of the United States of America
          or any U.S. state and assumes all of ML&Co.'s obligations to:

          o    pay any amounts due and payable or deliverable  with respect to
               all the Senior Debt Securities; and

          o    perform and observe all of ML&Co.'s  obligations under the 1983
               indenture, and

     o    ML&Co. or the successor corporation, as the case may be, is not,
          immediately after any consolidation or merger, in default under the
          1983 indenture.

Modification and Waiver

     ML&Co. and the trustee may modify and amend the 1983 indenture with the
consent of holders of at least 66 2/3% in principal amount of each outstanding
series of debt securities affected. However, without the consent of each holder
of any outstanding debt security affected, no amendment or modification to any
indenture may:

     o    change the stated maturity date of the principal of, or any
          installment of interest or Additional Amounts payable on, any senior
          debt security or any premium payable on redemption, or change the
          redemption price;

          o    reduce the principal amount of, or the interest or Additional
               Amounts payable on, any senior debt security or reduce the
               amount of principal which could be declared due and payable
               before the stated maturity date;

          o    change the place or currency of any payment of principal or any
               premium, interest or Additional Amounts payable on any senior
               debt security;

          o    impair the right to institute suit for the enforcement of any
               payment on or with respect to any senior debt security;

          o    reduce the percentage in principal amount of the outstanding
               senior debt securities of any series, the consent of whose
               holders is required to modify or amend the 1983 indenture; or

          o    modify the foregoing requirements or reduce the percentage of
               outstanding senior debt securities necessary to waive any past
               default to less than a majority.

     No modification or amendment of ML&Co.'s Subordinated Indenture or any
Subsequent Indenture for subordinated debt securities may adversely affect the
rights of any holder of ML&Co.'s senior indebtedness without the consent of
each holder affected. The holders of at least a majority in principal amount of
outstanding senior debt securities of any series may, with respect to that
series, waive past defaults under the 1983 indenture and waive compliance by
ML&Co. with provisions in the 1983 indenture, except as described under
"--Events of Default".

Events of Default

         Each of the following will be Events of Default with respect to senior
debt securities of any series:

          o    default in the payment of any interest or Additional Amounts
               payable when due and continuing for 30 days;

          o    default in the payment of any principal or premium when due;

          o    default in the deposit of any sinking fund payment, when due;

          o    default in the performance of any other obligation of ML&Co.
               contained in the 1983 indenture for the benefit of that series
               or in the senior debt securities of that series, continuing for
               60 days after written notice as provided in the 1983 indenture;

          o    specified events in bankruptcy, insolvency or reorganization of
               ML&Co.; and

          o    any other Event of Default provided with respect to senior debt
               securities of that series which are not inconsistent with the
               1983 indenture.

     If an Event of Default occurs and is continuing for any series of senior
debt securities, other than as a result of the bankruptcy, insolvency or
reorganization of ML&Co., the trustee or the holders of at least 25% in
principal amount of the outstanding senior debt securities of that series may
declare all amounts, or any lesser amount provided for in the senior debt
securities, due and payable or deliverable immediately. At any time after a
declaration of acceleration has been made with respect to senior debt
securities of any series but before the trustee has obtained a judgment or
decree for payment of money, the holders of a majority in principal amount of
the outstanding senior debt securities of that series may rescind any
declaration of acceleration and its consequences, if all payments due, other
than those due as a result of acceleration, have been made and all Events of
Default have been remedied or waived.

     The holders of a majority in principal amount or aggregate issue price of
the outstanding debt securities of that series may waive any Event of Default
with respect to that series, except a default:

          o    in the payment of any amounts due and payable or deliverable
               under the debt securities of that series; or

          o    in respect of an obligation or provision of any indenture which
               cannot be modified under the terms of that indenture without the
               consent of each holder of each series of debt securities
               affected.

     The holders of a majority in principal amount of the outstanding senior
debt securities of a series may direct the time, method and place of conducting
any proceeding for any remedy available to the trustee or exercising any trust
or power conferred on the trustee with respect to those senior debt securities,
provided that any direction shall not be in conflict with any rule of law or
the 1983 indenture. Before proceeding to exercise any right or power under the
1983 indenture at the direction of the holders, the trustee shall be entitled
to receive from the holders reasonable security or indemnification against the
costs, expenses and liabilities which might be incurred by it in complying with
any direction.

     The STRIDES Securities and other series of senior debt securities issued
under the 1983 indenture do not have the benefit of any cross-default
provisions with other indebtedness of ML&Co. 

     ML&Co. is required to furnish to the trustee annually a statement as to
the fulfillment by ML&Co. of all of its obligations under the 1983 indenture.
    

   
                      WHERE YOU CAN FIND MORE INFORMATION

     We file reports, proxy statements and other information with the SEC. Our
SEC filings are also available over the Internet at the SEC's web site at
http://www.sec.gov. You may also read and copy any document we file by visiting
the SEC's public reference rooms in Washington, D.C., New York, New York, and
Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further
information about the public reference rooms. You may also inspect our SEC
reports and other information at the New York Stock Exchange, Inc., 20 Broad
Street, New York, New York 10005.

     We have filed a registration statement on Form S-3 with the SEC covering
the STRIDES Securities and other securities. For further information on ML&Co.
and the STRIDES Securities, you should refer to our registration statement and
its exhibits. This prospectus summarizes material provisions of contracts and
other documents that we refer you to. Because the prospectus may not contain
all the information that you may find important, you should review the full
text of these documents. We have included copies of these documents as exhibits
to our registration statement of which this prospectus is a part.


               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

     The SEC allows us to incorporate by reference the information we file with
them, which means:

          o    incorporated documents are considered part of the prospectus;

          o    we can disclose important information to you by referring you to
               those documents; and

          o    information that we file with the SEC will automatically update
               and supersede this incorporated information.

     We incorporate by reference the documents listed below which were filed
with the SEC under the Exchange Act:

          o    annual report on Form 10-K for the year ended December 25, 1998;
               and

          o    current reports on Form 8-K dated December 28, 1998, January 19,
               1999, February 17, 1999, February 18, 1999, February 22, 1999,
               February 23, 1999 and March 26, 1999.

     We also incorporate by reference each of the following documents that we
will file with the SEC after the date of this prospectus until this offering is
completed or after the date of this initial registration statement and before
the effectiveness of the registration statement:

          o    reports filed under Sections 13(a) and (c) of the Exchange Act;

          o    definitive proxy or information statements filed under Section
               14 of the Exchange Act in connection with any subsequent
               stockholders' meeting; and

          o    any reports filed under Section 15(d) of the Exchange Act.

     You should rely only on information contained or incorporated by reference
in this prospectus. We have not, and MLPF&S has not, authorized any other
person to provide you with different information. If anyone provides you with
different or inconsistent information, you should not rely on it. We are not,
and MLPF&S is not, making an offer to sell these securities in any jurisdiction
where the offer or sale is not permitted.

     You should assume that the information appearing in this prospectus is
accurate as of the date of this prospectus only. Our business, financial
condition and results of operations may have changed since that date.

     You may request a copy of any filings referred to above (excluding
exhibits), at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan, Jr., Corporate Secretary's Office, Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.


                              PLAN OF DISTRIBUTION

     This prospectus has been prepared in connection with secondary sales of
the STRIDES Securities and is to be used by MLPF&S when making offers and sales
related to market-making transactions in the STRIDES Securities.

     MLPF&S may act as principal or agent in these market-making transactions.

     The STRIDES Securities may be offered on the AMEX or off the exchange in
negotiated transactions or otherwise.

     The distribution of the STRIDES Securities will conform to the
requirements set forth in the applicable sections of Rule 2720 of the Conduct
Rules of the NASD.


                                    EXPERTS

     The consolidated  financial  statements and the related financial statement
schedule  incorporated in this prospectus by reference from the Annual Report on
Form 10-K of Merrill  Lynch & Co.,  Inc. and  subsidiaries  have been audited by
Deloitte & Touche LLP, independent  auditors,  as stated in their reports (which
express an unqualified  opinion and which report on the  consolidated  financial
statements includes an explanatory paragraph for the change in accounting method
for certain  internal-use  software  development costs),  which are incorporated
herein by reference,  and have been so incorporated in reliance upon the reports
of such firm given upon their authority as experts in accounting and auditing.
    

<PAGE>
   
The information in this prospectus is not complete and may be changed. We may
not sell these securities until the registration statement filed with the
Securities and Exchange Commission is effective. This prospectus is not an
offer to sell these securities and it is not soliciting an offer to buy these
securities in any state where the offer or sale is not permitted.
    

                             Subject to Completion
                  Preliminary Prospectus dated March 29, 1999

PROSPECTUS 

                           Merrill Lynch & Co., Inc.
        5 1/4% Stock Return Income Debt Securities(SM) due August 23, 2000
                             "STRIDES(SM) Securities"
                 Linked to the value of the Nasdaq-100 Index(R)
                         $10 principal amount per unit

     This prospectus is to be used by Merrill Lynch & Co., Merrill Lynch,
Pierce, Fenner & Smith Incorporated, our wholly-owned subsidiary, when making
offers and sales related to market-making transactions in the STRIDES
Securities.
<TABLE>
<CAPTION>

The STRIDES Securities:                                          Payment at Maturity:

<S>                                                             <C>
o  Interest on the STRIDES Securities at a rate of 5             o  On the maturity date, for each unit of the STRIDES
   1/4% per year is payable on February 23 and August               Securities you own, you will receive accrued and
   23 of each year.                                                 unpaid interest. In addition, we will pay you the
o  Senior unsecured debt securities of Merrill Lynch &              lesser of $12.50 and an amount based on the
   Co., Inc.                                                        percentage change in the value of the index, as
o  Linked to the value of the Nasdaq-100 Index                      described in this prospectus.
o  The STRIDES Securities are listed on the American
   Stock Exchange under the symbol "NML".

</TABLE>

  Investing in the STRIDES Securities involves risks, including the risk that
         you may receive less than the price you paid for your STRIDES.
           See "Risk Factors" beginning on page 5 of this prospectus.

     Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if
this prospectus or the accompanying prospectus is truthful or complete. Any
representation to the contrary is a criminal offense.

     The sale price of the STRIDES Securities will be the prevailing market
price at the time of sale.

                           -------------------------

                              Merrill Lynch & Co.
                           -------------------------

                The date of this prospectus is March __ , 1999.

"Stock Return Income Debt Securities" and "STRIDES" are service marks owned by
Merrill Lynch & Co., Inc. "Nasdaq", "Nasdaq-100" and "Nasdaq-100 Index" are
trademarks, trade names or service marks owned by The Nasdaq Stock Market, Inc.


                               TABLE OF CONTENTS

                                                                    Page

RISK FACTORS.........................................................5

MERRILL LYNCH & CO., INC.............................................8

RATIO OF EARNINGS TO FIXED CHARGES...................................9

DESCRIPTION OF THE STRIDES SECURITIES...............................10

THE INDEX...........................................................18

OTHER TERMS.........................................................22

WHERE YOU CAN FIND MORE INFORMATION.................................25

INCORPORATION OF INFORMATION WE FILE WITH THE SEC...................26

PLAN OF DISTRIBUTION................................................26

EXPERTS.............................................................27


                            SUMMARY INFORMATION--Q&A

     This summary includes questions and answers that highlight selected
information from this prospectus to help you understand the STock Return Income
DEbt Securities SM or STRIDES SM Securities due August 23, 2000. You should
carefully read this prospectus to fully understand the terms of the STRIDES
Securities, the Nasdaq-100 Index as well as the tax and other considerations
that are important to you in making a decision about whether to invest in the
STRIDES Securities. You should, in particular, carefully review the "Risk
Factors" section, which highlights certain risks, to determine whether an
investment in the STRIDES Securities is appropriate for you.

What are the STRIDES Securities?

     The STRIDES Securities are a series of senior debt securities issued by
ML&Co. and are not secured by collateral. The STRIDES Securities rank equally
with all of our other unsecured and unsubordinated debt. The maturity date of
the STRIDES Securities is August 23, 2000. We cannot redeem the STRIDES
Securities at any earlier date.

     Each unit of the STRIDES Securities represents $10 principal amount of the
STRIDES Securities. You may transfer the STRIDES Securities only in whole
units. You will not have the right to receive physical certificates evidencing
your ownership except under limited circumstances. Instead, we issued the
STRIDES Securities in the form of a global certificate, held by The Depository
Trust Company, known as DTC, or its nominee. Direct and indirect participants
in DTC record beneficial ownership of the STRIDES Securities by individual
investors. You should refer to the section "Description of the STRIDES
Securities--Depositary" in this prospectus.

When will you receive interest?

     You will receive interest payments on the STRIDES Securities at a rate of
5 1/4% per year of the principal amount of each unit, on February 23 and August
23 of each year, beginning August 23, 1999.

What will you receive on the maturity date?

     On the maturity date, for each unit of the STRIDES Securities that you
own, in addition to accrued and unpaid interest, we will pay you an amount
equal to the "Redemption Amount" which will equal the lesser of:

     o   $12.50 (the "Capped Value"); and

     o   $10 X (Ending Value   )
               (---------------)
               (Starting Value )

         "Starting Value" equals 1,891.37.

     "Ending Value" means the average of the values of the index at the close
of the market on five business days shortly before the maturity date. We may
calculate the Ending Value by reference to fewer than five or even by reference
to a single day's closing value if, during the period prior to the maturity
date, there is a disruption in the trading of the stocks included in the index
or futures or options relating to the index.

     You should understand that the opportunity to participate in the possible
increases in the value of the index through an investment in the STRIDES
Securities is limited because the amount that you receive on the maturity date
will never exceed the Capped Value, which represents an appreciation of 25%
over the initial price of the STRIDES Securities. However, in the event that
the value of the Index declines over the term of the STRIDES Securities, you
will realize the entire decline in value of the STRIDES Securities and may
therefore lose a part of your initial investment in the STRIDES Securities. For
more information about risks associated with the STRIDES Securities, please see
the section entitled "Risk Factors" in this prospectus.

     For more specific information about the determination of the Ending Value
and the Redemption Amount, please see the sections entitled "Description of the
STRIDES Securities--Payment at Maturity" and "--Examples of Redemption Amount
Calculations" in this prospectus.

Who publishes the index and what does the index measure?

     The Nasdaq-100 Index is a modified capitalization-weighted index of 100 of
the largest and most actively traded of non-financial companies listed on the
Nasdaq National Market tier of the Nasdaq Stock Market. The index is currently
calculated and published by The Nasdaq Stock Market, Inc.

     Please note that an investment in the STRIDES Securities does not entitle
you to any ownership interest in any of the stocks included in the index.

How has the index performed historically?

     Tables showing the closing value of the index on the last business day of
each month from January 1989 through February 1999 are provided in the section
entitled "The Index--Historical Data" in this prospectus. We have provided this
historical information to help you evaluate the behavior of the index in
various economic environments; however, past performance of the index is not
necessarily indicative of how the index will perform in the future.

What about taxes?

     The U.S. Federal income tax consequences of an investment in the STRIDES
Securities are complex and uncertain. Pursuant to the terms of the STRIDES
Securities, ML&Co. and you agree, in the absence of an administrative or
judicial ruling to the contrary, to characterize a STRIDES Security for all tax
purposes as an investment unit consisting of a debt instrument of ML&Co. and a
forward contract to acquire cash equivalent to the Redemption Amount. Under
this characterization of the STRIDES Securities, for U.S. Federal income tax
purposes, you will include payments of interest on the STRIDES Securities in
income in accordance with your regular method of tax accounting. You should be
required to recognize gain or loss to the extent that you receive cash on the
maturity date. You should review the discussion under the section entitled
"United States Federal Income Taxation" in this prospectus.

Will the STRIDES Securities be listed on a stock exchange?

     The STRIDES Securities are listed on the American Stock Exchange under the
trading symbol "NML".

What is the role of MLPF&S?

     MLPF&S, our subsidiary, was the underwriter for the offering and sale of
the STRIDES Securities.

     MLPF&S also will be our agent for purposes of calculating, among other
things, the Ending Value and the Redemption Amount. In some circumstances,
these duties could result in a conflict of interest between MLPF&S's status as
our subsidiary and its responsibilities as calculation agent.

Who is ML&Co.?

     Merrill Lynch & Co., Inc. is a holding company with various subsidiary and
affiliated companies that provide investment, financing, insurance and related
services on a global basis. For information about ML&Co., please see the
section "Merrill Lynch & Co., Inc." in this prospectus. You should also read
the other documents we have filed with the SEC, which you can find by referring
to the section entitled "Where You Can Find More Information" in this
prospectus.

    Are there any risks associated with an investment in the STRIDES
Securities?

     Yes, an investment in the STRIDES Securities is subject to certain risks.
Please refer to the section entitled "Risk Factors" in this prospectus.


                                  RISK FACTORS

     Your investment in the STRIDES Securities will involve risks. You should
consider carefully the following discussion of risks before you decide that an
investment in the STRIDES Securities is suitable for you.

The STRIDES Securities are unlike typical debt or equity securities

     The STRIDES Securities combine features of equity and debt instruments.
For example, like an equity instrument, your return will be based on the
appreciation of the stocks included in the index as reflected in the closing
value of the index. However, as a holder of the STRIDES Securities, you will
not be entitled to receive dividends that would be payable on these underlying
stocks if you had made a direct investment in the underlying stocks. In
addition, like a debt instrument, you will receive a fixed interest payment on
your STRIDES Securities on each interest payment date. However, the terms of
the STRIDES Securities differ from the terms of ordinary debt securities in
that the amount payable on the maturity date is not a fixed amount, but is
based on the closing value of the index, limited to the maximum amount of
$12.50.

Your investment may result in a loss

     The STRIDES Securities are not principal-protected. Because the closing
value of the index is subject to market fluctuations, the amount of cash paid
to you on the maturity date, determined as described below, may be more or less
than the principal amount of your STRIDES Securities. If the average of the
values of the index at the close of the market on five business day shortly
before the maturity date is less than 1,891.37, the amount we will pay you at
maturity will be less than the initial issue price of each STRIDES Security, in
which case your investment in the STRIDES Securities may result in a loss to
you.

Your yield may be lower than the yield on a standard debt security of
comparable maturity

     The interest payments and the amount we pay you at maturity may together
be less than the return you could earn on other investments. Your yield may be
less than the yield you would earn if you bought a standard senior non-callable
debt security of Merrill Lynch & Co. with the same maturity date. Your
investment may not reflect the full opportunity cost to you when you take into
account factors that affect the time value of money.

Your return is capped and will not reflect the return of owning the stocks
underlying the index

     You should understand that the opportunity to participate in the possible
increases in the value of the index through an investment in the STRIDES
Securities is limited because the amount that you receive on the maturity date
will never exceed $12.50, which represents an appreciation of 25% over the
initial issue price of the STRIDES Securities. However, in the event that the
value of the index declines over the term of the STRIDES Securities, you will
realize the entire decline in value of the STRIDES Securities, and may lose a
part of your investment in the STRIDES Securities. There is no assurance that
the amount that you receive on the maturity date will be equal to or greater
than the initial issue price of the STRIDES Securities. Accordingly, the value
of the STRIDES Securities may decline and that decline could be substantial.

     In addition, your return will not reflect the return you would realize if
you actually owned the stocks underlying the index and received the dividends
paid on those stocks because the index is calculated by reference to the prices
of the underlying stocks without taking into consideration the value of
dividends paid on these stocks.

There may be an uncertain trading market for the STRIDES Securities in the
future

     Although the STRIDES Securities are listed on the AMEX under the symbol
"NML", you cannot assume that a trading market will continue to exist for the
STRIDES Securities. If a trading market in the STRIDES Securities continues to
exist, you cannot assume that there will be liquidity in the trading market.
The continued existence of a trading market for the STRIDES Securities will
depend on our financial performance and other factors including the
appreciation, if any, of the value of the index.

Factors affecting the trading value of the STRIDES Securities

     The value of the index and a number of other factors will affect the
market value of the STRIDES Securities. Some of these factors are interrelate
in complex ways; as a result, the effect of any one factor may magnify or
mitigate the effect of another factor. The following paragraphs describe the
expected effect on the market value of the STRIDES Securities given a change in
a specific factor, assuming all other conditions remain constant.

     o    Value of the index. The market value of the STRIDES Securities will
          depend substantially on the amount by which the value of the index
          exceeds or does not exceed 1,891.37. In general, the value of the
          STRIDES Securities will decrease as the value of the index decreases
          and the value of the STRIDES Securities will increase as the value of
          the index increases, subject to maximum payment at maturity of
          $12.50. However, as the value of the index increases or decreases,
          the value of the STRIDES Securities is not expected to increase or
          decrease at the same rate as the change in value of the index. The
          value of the STRIDES Securities on the maturity date cannot be
          greater than $12.50, and therefore, the STRIDES Securities will
          generally not trade in the secondary market above that amount.
          Additionally, political, economic and other developments that can
          affect the capital markets generally, and over which we have no
          control, that affect the value of the index will also affect the
          value of the STRIDES Securities.

     o    Interest rates. In general, we anticipate that if U.S. interest rates
          increase, the trading value of the STRIDES Securities will decrease,
          and conversely, if U.S. interest rates decrease, the trading value of
          the STRIDES Securities will increase. Generally, fluctuations in
          interest rates will affect the U.S. economy and, in turn, the value
          of the index. Rising interest rates may lower the value of the index
          and, as a result, the value of the STRIDES Securities. Falling
          interest rates may increase the value of the index and, as a result,
          may increase the value of the STRIDES Securities.

     o    Volatility of the index. Volatility is the term used to describe the
          size and frequency of market fluctuations. Generally, if the
          volatility of the index increases, we expect that the trading value
          of the STRIDES Securities will decrease and if the volatility of the
          index decreases, we expect that the trading value of the STRIDES
          Securities will increase.

     o    Time remaining to maturity. We believe that before the maturity date
          the STRIDES Securities will trade at a value above or below that
          which would be expected based on the value of the index. Generally,
          as the time remaining to maturity decreases, the value of the STRIDES
          Securities will approach the amount that would be payable at maturity
          based on the then current value of the index. As a result, as the
          time remaining to maturity decreases, any discount or premium
          attributed to the trading value of the STRIDES Securities will
          diminish, increasing or decreasing the trading value of the STRIDES
          Securities, as applicable.

     o    Dividend yields. Generally, if the dividend yield on the underlying
          stocks increases, we expect that the value of the STRIDES Securities
          will decrease, and conversely, if the dividend yield on the
          underlying stocks decreases, we expect that the value of the STRIDES
          Securities will increase.

     o    Changes in our credit ratings. Our credit ratings are an assessment
          of our ability to pay our obligations. Consequently, real or
          anticipated changes in our credit ratings may affect the trading
          value of the STRIDES Securities. However, because your return on your
          STRIDES Securities is dependent upon factors in addition to our
          ability to pay our obligations under the STRIDES Securities,
          including the percentage increase in the value of the index at
          maturity, an improvement in our credit ratings will not reduce
          investment risks related to the STRIDES Securities.

     It is important for you to understand that a decrease in the trading value
of the STRIDES Securities resulting from the effect of one of the factors
specified above, including an increase in interest rates, may offset some or
all of any increase in the trading value of the STRIDES Securities attributable
to another factor, for example, an increase in the value of the index.

     In general, assuming all relevant factors are held constant, we expect
that the effect on the trading value of the STRIDES Securities of a given
change in most of the factors listed above will be less if it occurs later in
the term of the STRIDES Securities than if it occurs earlier in the term of the
STRIDES Securities. However, so long as the value of the Index is less than 25%
above 1,891.37, we expect that the effect on the trading value of the STRIDES
Securities of a given increase or decrease in the value of the index will be
greater if it occurs later in the term of the STRIDES Securities than if it
occurs earlier in the term of the STRIDES Securities.

Potential conflicts

     The calculation agent for the STRIDES Securities is one of our
subsidiaries. In some circumstances, MLPF&S's role as our subsidiary and its
responsibilities as calculation agent for the STRIDES Securities could give
rise to conflicts of interests between the calculation agent and the holders of
the STRIDES Securities. These conflicts could occur, for instance, in
connection with its determination as to whether a market disruption event has
occurred. MLPF&S is required to carry out its duties as calculation agent in
good faith and using its reasonable judgment. However, you should be aware that
because we control MLPF&S, potential conflicts of interest could arise.

     We have entered into arrangements with one of our subsidiaries to hedge
the market risks associated with our obligation in connection with the STRIDES
Securities. This subsidiary expects to make a profit in connection with these
arrangements. We did not seek competitive bids for the arrangements from
unaffiliated parties.

Uncertain tax consequences

     You should also consider the tax consequences of investing in the STRIDES
Securities, aspects of which are uncertain. See the section entitled "United
States Federal Income Taxation" in this prospectus.


                           MERRILL LYNCH & CO., INC.

     We are a holding company that, through our U.S. and non-U.S. subsidiaries
and affiliates such as Merrill Lynch, Pierce, Fenner & Smith Incorporated,
Merrill Lynch Government Securities Inc., Merrill Lynch Capital Services, Inc.,
Merrill Lynch International, Merrill Lynch Capital Markets Bank Ltd., Merrill
Lynch Asset Management L.P. and Merrill Lynch Mercury Asset Management,
provides investment, financing, advisory, insurance, and related products on a
global basis, including:

     o    securities brokerage, trading and underwriting;

     o    investment banking, strategic services, including mergers and
          acquisitions and other corporate finance advisory activities;

     o    asset management and other investment advisory and recordkeeping
          services;

     o    trading and brokerage of swaps, options, forwards, futures and other
          derivatives;

     o    securities clearance services;

     o    equity, debt and economic research;

     o    banking, trust and lending services, including mortgage lending and
          related services; and

     o    insurance sales and underwriting services.

We provide these products and services to a wide array of clients, including
individual investors, small businesses, corporations, governments, governmental
agencies and financial institutions.

     Our principal executive office is located at World Financial Center, North
Tower, 250 Vesey Street, New York, New York 10281; our telephone number is
(212) 449-1000.

     If you want to find more information about us, please see the sections
entitled "Where You Can Find More Information" and "Incorporation of
Information We File with the SEC" in this prospectus.

     In this prospectus, "ML&Co.", "we", "us" and "our" refer specifically to
Merrill Lynch & Co., Inc., the holding company. ML&Co. is the issuer of the
STRIDES Securities described in this prospectus.


                       RATIO OF EARNINGS TO FIXED CHARGES

     In 1998, we acquired the outstanding shares of Midland Walwyn, Inc., in a
transaction accounted for as a pooling-of-interests. The following information
for the fiscal years 1994 through 1997 has been restated as if the two entities
had always been combined.

     The following table sets forth our historical ratios of earnings to fixed
charges for the periods indicated:
<TABLE>
<CAPTION>

                                                     Year Ended Last Friday in December
                                                 1994     1995     1996     1997      1998
                                                 -----------------------------------------
<S>                                               <C>      <C>      <C>      <C>       <C>
Ratio of earnings to fixed charges(a).........    1.2      1.2      1.2      1.2       1.1

- ----------
(a)  The effect of combining Midland Walwyn did not change the ratios reported for the fiscal years 1994
     through 1997.
</TABLE>

     For the purpose of calculating the ratio of earnings to fixed charges,
"earnings" consist of earnings from continuing operations before income taxes
and fixed charges, excluding capitalized interest and preferred security
dividend requirements. "Fixed charges" consist of interest costs, the interest
factor in rentals, amortization of debt issuance costs, preferred security
dividend requirements of subsidiaries, and capitalized interest.


                     DESCRIPTION OF THE STRIDES SECURITIES

     On February 23, 1999, ML&Co. issued $18,000,000 aggregate principal amount
of STRIDES Securities due August 23, 2000. The STRIDES Securities were issued
as a series of senior debt securities under the 1983 Indenture, which is more
fully described in this prospectus.

     Upon the occurrence of an Event of Default with respect to the STRIDES
Securities, beneficial owners of the STRIDES Securities may accelerate the
maturity of the STRIDES Securities, as described under "Description of the
STRIDES Securities--Events of Default and Acceleration" in this prospectus.

     The STRIDES Securities were issued in denominations of whole units.

     The STRIDES Securities do not have the benefit of any sinking fund.

Interest

     The STRIDES Securities bear interest at a rate of 5 1/4% per annum of the
principal amount of each unit from February 23, 1999, or from the most recent
interest payment date for which interest has been paid or provided for, until
the maturity date. Interest on the STRIDES Securities is payable in cash
semi-annually in arrears on February 23 and August 23 of each year, commencing
August 23, 1999, to the persons in whose names the STRIDES Securities are
registered at the close of business on the immediately preceding February 8 and
August 8, respectively, whether or not a Business Day. Interest on the STRIDES
Securities is computed on the basis of a 360-day year of twelve 30-day months.
If an interest payment date falls on a day that is not a Business Day, the
interest payment to be made on the interest payment date will be made on the
next succeeding Business Day with the same force and effect as if made on the
interest payment date, and no additional interest will accrue as a result of a
delayed payment.

Payment at Maturity

     The maturity date of the STRIDES Securities will be on August 23, 2000. On
the maturity date, the beneficial owner of each STRIDES Security will receive,
in addition to accrued and unpaid interest, for each unit of the STRIDES
Securities then held, the Redemption Amount in cash.

     The "Redemption Amount" will be determined by the calculation agent and
for each unit will equal the lesser of:

                   o        $12.50 (the "Capped Value"); and

                   o        $10 X (Ending Value  )
                                  (--------------)
                                  (Starting Value)

     The "Starting Value" equals 1,891.37.


     The Ending Value will be determined by the calculation agent and will
equal the average or arithmetic mean of the Closing Values, as defined below,
of the index determined on each of the first five Calculation Days during the
Calculation Period. If there are fewer than five Calculation Days in the
Calculation Period, then the Closing Values used to determine the Ending Value
will equal the average or arithmetic mean of the Closing Values of the index on
those Calculation Days, and if there is only one Calculation Day, then the
Ending Value will be equal to the Closing Value of the index on that
Calculation Day. If no Calculation Days occur during the Calculation Period,
then the Ending Value will be equal to the Closing Value of the index
determined on the last scheduled Calculation Day in the Calculation Period,
regardless of the occurrence of a Market Disruption Event on that day.

     The "Calculation Period" means the period from and including the seventh
scheduled Calculation Day prior to the maturity date to and including the
second scheduled Calculation Day prior to the maturity date.

     "Calculation Day" means any Index Business Day on which a Market
Disruption Event has not occurred.

     "Index Business Day" means any day on which the Nasdaq Stock Market, the
New York Stock Exchange and the AMEX are open for trading and the Index or any
Successor Index, as defined below, is calculated and published.

     "Market Disruption Event" has the meaning defined in the section entitled
"--Adjustments to the Index; Market Disruption Events".

     "Closing Value" means the value of the Index or any Successor Index at the
close of trading on any Index Business Day.

     "Business Day" means each Monday, Tuesday, Wednesday, Thursday and Friday
that is not a day on which banking institutions in The City of New York are
authorized or obligated by law to close and that is an Index Business Day.

     All determinations made by the calculation agent shall be at its sole
discretion and, absent a determination by the calculation agent of a manifest
error, shall be conclusive for all purposes and binding on ML&Co. and the
beneficial owners of the STRIDES Securities.


Examples of Redemption Amount Calculations

         Set forth below are three examples of Redemption Amount calculations:

Example One--Ending Value is 30% less than Starting Value

         Starting Value: 1,891.37

         Hypothetical Ending Value: 1,323.96

         Redemption Amount (per unit)                      (1,323.96) 
                                               = 10.00 X   (--------) = $7.00
                                                           (1,891.37)
Redemption Amount (per unit) = $7.00

Example Two--Ending Value is 10% greater than Starting Value

         Starting Value: 1,891.37

         Hypothetical Ending Value: 2,080.51

         Redemption Amount (per unit)                      (2,080.51) 
                                               = 10.00 X   (--------) = $11.00
                                                           (1,891.37)


Redemption Amount (per unit) = $11.00

Example Three--Ending Value is 30% greater than Starting Value

         Starting Value: 1,891.37

         Hypothetical Ending Value: 2,458.78

         
         Redemption Amount  = $10.00 X (2,458.78)
         (per unit)                    (--------)   = $12.50   (Redemption 
                                       (1,891.37)              Amount cannot be
                                                               greater than the
                                                               Capped Value)

Redemption Amount (per unit) = $12.50


Hypothetical Returns

     The following table illustrates, for a range of hypothetical Ending
Values,

     o    the percentage change over the Starting Value;

     o    the Redemption Amount payable per unit;

     o    the total rate of return to beneficial owners of the STRIDES
          Securities;

     o    the pretax annualized rate of return to beneficial owners of STRIDES
          Securities; and

     o    the pretax annualized rate of return of the Underlying Stocks, which
          includes an assumed aggregate dividend yield of 0.12% per annum, as
          more fully described below.
<TABLE>
<CAPTION>

                                                                                                        Pretax
                                          Redemption        Total Rate of           Pretax             Annualized
                Percentage Change           Amount            Return of           Annualized         Rate of Return
 Hypothetical       Over the               Payable            STRIDES              Rate of         of the Underlying
 Ending Value     Starting Value           per unit         Securities(1)        Return(2)(3)         Stocks(3)(4)
 ------------     --------------           --------         -------------        ------------      -----------------

<S>                   <C>                  <C>                  <C>                 <C>                   <C>   
    945.69           -50.00%               $ 5.00              -42.13%             -34.57%               -41.16%
  1,040.25           -45.00%               $ 5.50              -37.13%             -29.68%               -36.03%
  1,134.82           -40.00%               $ 6.00              -32.13%             -25.05%               -31.21%
  1,229.39           -35.00%               $ 6.50              -27.13%             -20.67%               -26.65%
  1,323.96           -30.00%               $ 7.00              -22.13%             -16.49%               -22.31%
  1,418.53           -25.00%               $ 7.50              -17.13%             -12.50%               -18.18%
  1,513.10           -20.00%               $ 8.00              -12.13%              -8.68%               -14.22%
  1,607.66           -15.00%               $ 8.50               -7.13%              -5.00%               -10.43%
  1,702.23           -10.00%               $ 9.00               -2.13%              -1.47%                -6.79%
  1,796.80            -5.00%               $ 9.50                2.88%               1.95%                -3.27%
  1,891.37(5)          0.00%              $ 10.00                7.88%               5.25%                 0.12%
  1,985.94             5.00%              $ 10.50               12.88%               8.45%                 3.40%
  2,080.51            10.00%              $ 11.00               17.88%              11.55%                 6.58%
  2,175.08            15.00%              $ 11.50               22.88%              14.56%                 9.66%
  2,269.64            20.00%              $ 12.00               27.88%              17.48%                12.66%
  2,364.21            25.00%              $ 12.50               32.88%              20.33%                15.57%
  2,458.78            30.00%              $ 12.50               32.88%              20.33%                18.41%
  2,553.35            35.00%              $ 12.50               32.88%              20.33%                21.18%
  2,647.92            40.00%              $ 12.50               32.88%              20.33%                23.87%
  2,742.49            45.00%              $ 12.50               32.88%              20.33%                26.51%
  2,837.06            50.00%              $ 12.50               32.88%              20.33%                29.08%


</TABLE>
                                                                              
(1)  The rates of return specified in this column assume a coupon yield of 5
     1/4% per annum.

(2)  The annualized rates of return specified in this column assume a constant
     coupon yield of 5 1/4% per annum paid semi-annually and applied to the
     principal amount of each STRIDES Security.

(3)  The annualized rates of return specified in these columns are calculated
     on a semi-annual bond equivalent basis.

(4)  The rates of return specified in this column assume: 

     (a)  a constant dividend yield of 0.12% per annum, paid quarterly from the
          date of initial delivery of STRIDES Securities, applied to the value
          of the Index at the end of each quarter assuming that value increases
          or decreases linearly from the Starting Value to the applicable
          hypothetical Ending Value;

     (b)  no transaction fees or expenses;

     (c)  an investment term equal to the term of the STRIDES Securities; and

     (d)  a final Index value equal to the hypothetical Ending Value.

(5)  This value is the Starting Value.

     The above figures are for purposes of illustration only. The actual
Redemption Amount received by investors and the resulting total and pretax
annualized rate of return will depend entirely on the actual Ending Value
determined by the calculation agent as provided in this prospectus.

Adjustments to the Index; Market Disruption Events

     If at any time the method of calculating the Index, or its value, is
changed in any material respect, or if the Index is in any other way modified
so that the Index does not, in the opinion of the calculation agent, fairly
represent the value of the Index had the changes or modifications not been
made, then, from and after that time, the calculation agent shall, at the close
of business in New York, New York, on each date that the Closing Value is to be
calculated, make any adjustments as, in the good faith judgment of the
calculation agent, may be necessary in order to arrive at a calculation of a
value of a stock index comparable to the Index as if any changes or
modifications had not been made, and calculate the Closing Value with reference
to the Index, as adjusted. Accordingly, if the method of calculating the Index
is modified so that the value of the Index is a fraction or a multiple of what
it would have been if it had not been modified, for example, due to a split in
the Index, then the calculation agent shall adjust the Index in order to arrive
at a value of the Index as if it had not been modified, for example, as if the
split had not occurred.

     "Market Disruption Event" means either of the following events; as
determined by the calculation agent:

     (a)  the suspension or material limitation on trading for more than two
          hours of trading, or during the one-half hour period preceding the
          close of trading on the applicable exchange, in each case, in 20% or
          more of the stocks which then comprise the Index; or

     (b)  the suspension or material limitation on trading, in each case, for
          more than two hours of trading, whether by reason of movements in
          price otherwise exceeding levels permitted by the relevant exchange
          or otherwise, in

          (1)  futures contracts related to the Index, or options on futures
               contracts, which are traded on any major U.S. exchange or

          (2)  option contracts related to the Index which are traded on any
               major U.S. exchange.

     For the purposes of clause (a) above, any limitations on trading during
significant market fluctuations under New York Stock Exchange Rule 80A, or an y
applicable rule or regulation enacted or promulgated by the NYSE or any other
self regulatory organization or the SEC of similar scope as determined by the
calculation agent, will be considered "material".

     For the purposes of this definition, a limitation on the hours in a
trading day and/or number of days of trading will not constitute a Market
Disruption Event if it results from an announced change in the regular business
hours of the relevant exchange.

Discontinuance of the Index

     If Nasdaq discontinues publication of the Index and Nasdaq or another
entity publishes a successor or substitute index that the calculation agent
determines, in its sole discretion, to be comparable to the Index (any index so
selected being referred to as a "Successor Index"), then, upon the calculation
agent's notification of the determination to the Trustee and ML&Co., the
calculation agent will substitute the Successor Index as calculated by Nasdaq
or any other entity for the Index. Upon any selection by the calculation agent
of a Successor Index, ML&Co. will cause notice to be given to holders of the
STRIDES Securities.

     If Nasdaq discontinues publication of the Index and a Successor Index is
not selected by the calculation agent or is no longer published on any of the
Calculation Days, the value to be substituted for the Index for any Calculation
Day used to calculate the Redemption Amount at maturity will be a value
computed by the calculation agent for each Calculation Day in accordance with
the procedures last used to calculate the Index prior to any discontinuance. If
a Successor Index is selected or the calculation agent calculates a value as a
substitute for the Index as described below, the Successor Index or value shall
be substituted for the Index for all purposes, including for purposes of
determining whether a Market Disruption Event exists. If the calculation agent
calculates a value as a substitute for the Index, "Calculation Day" shall mean
any day on which the calculation agent is able to calculate the value.

     If Nasdaq discontinues publication of the Index prior to the period during
which the Redemption Amount is to be determined and the calculation agent
determines that no Successor Index is available at that time, then on each
Index Business Day until the earlier to occur of (a) the determination of the
Ending Value and (b) a determination by the calculation agent that a Successor
Index is available, the calculation agent will determine the value that would
be used in computing the Redemption Amount as described in the preceding
paragraph as if that day were a Calculation Day. The calculation agent will
cause notice of each value to be published not less often than once each month
in The Wall Street Journal or another newspaper of general circulation, and
arrange for information with respect to the values to be made available by
telephone. Discontinuance of the publication of the Index may adversely affect
trading in the STRIDES Securities.

Events of Default and Acceleration

     In case an Event of Default with respect to any STRIDES Securities has
occurred and is continuing, the amount payable to a beneficial owner of a
STRIDES Security upon any acceleration permitted by the STRIDES Securities,
with respect to each $10 unit of the STRIDES Securities, will be equal to the
principal amount and any accrued interest due thereon. If a bankruptcy
proceeding is commenced in respect of the ML&Co., the claim of the beneficial
owner of a STRIDES Security may be limited, under Section 502(b)(2) of Title 11
of the United States Code, to the principal amount of the STRIDES Security plus
an additional amount of contingent interest calculated as though the date of
the commencement of the proceeding were the maturity date of the STRIDES
Securities.

     In case of default in payment of the STRIDES Securities, whether at any
interest payment date, the maturity date or upon acceleration), from and after
that date the STRIDES Securities shall bear interest, payable upon demand of
the beneficial owners of the STRIDES Securities, at the rate of 5 1/4% per
annum, to the extent that payment of any interest shall be legally enforceable,
on the unpaid amount due and payable on that date in accordance with the terms
of the STRIDES Securities to the date payment of that amount has been made or
duly provided for.

Global Securities

     Description of the Global Securities

     Beneficial owners of the STRIDES Securities may not receive physical
delivery of the STRIDES Securities nor may they be entitled to have the STRIDES
Securities registered in their names. The STRIDES Securities currently are
represented by one or more fully registered global securities. Each global
security was deposited with, or on behalf of, The Depository Trust Company or
DTC (DTC, together with any successor, being a "depositary"), as depositary,
registered in the name of Cede & Co., DTC's partnership nominee. Unless and
until it is exchanged in whole or in part for STRIDES Securities in definitive
form, no global security may be transferred except as a whole by the depositary
to a nominee of the depositary or by a nominee of the depositary to the
depositary or another nominee of the depositary or by the depositary or any
nominee to a successor of the depositary or a nominee of that successor.

     So long as DTC, or its nominee, is a registered owner of a global
security, DTC or its nominee, as the case may be, will be considered the sole
owner or holder of the STRIDES Securities represented by a global security for
all purposes under the 1983 Indenture. Except as provided below, the beneficial
owners of the STRIDES Securities represented by a global security will not be
entitled to have the STRIDES Securities represented by the global security
registered in their names, will not receive or be entitled to receive physical
delivery of the STRIDES Securities in definitive form and will not be
considered the owners or holders under the 1983 Indenture, including for
purposes of receiving any reports delivered by ML&Co. or the Trustee under the
1983 Indenture. Accordingly, each person owning a beneficial interest in a
global security must rely on the procedures of DTC and, if that person is not a
participant of DTC on the procedures of the participant through which the
person owns its interest, to exercise any rights of a holder under the 1983
Indenture. ML&Co. understands that under existing industry practices, in the
event that ML&Co. requests any action of holders or that an owner of a
beneficial interest in a global security desires to give or take any action
which a holder is entitled to give or take under the 1983 Indenture, DTC would
authorize the participants holding the relevant beneficial interests to give or
take any action, and the participants would authorize beneficial owners owning
through those participants to give or take action or would otherwise act upon
the instructions of beneficial owners. Conveyance of notices and other
communications by DTC to participants, by participants to indirect participants
and by participants and indirect participants to beneficial owners will be
governed by arrangements among them, subject to any statutory or regulatory
requirements as may be in effect from time to time.

     DTC Procedures

     The following is based on information furnished by DTC:

     DTC is the securities depositary for the STRIDES Securities. The STRIDES
Securities were issued as fully registered securities registered in the name of
Cede & Co., DTC's partnership nominee. One or more fully registered global
securities were issued for the STRIDES Securities in the aggregate principal
amount of the STRIDES Securities, and were deposited with DTC.

     DTC is a limited-purpose trust company organized under the New York
Banking Law, a "banking organization" within the meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing corporation"
within the meaning of the New York Uniform Commercial Code, and a "clearing
agency" registered under to the provisions of Section 17A of the Securities and
Exchange Act of 1934, as amended. DTC holds securities that its participants
deposit with DTC. DTC also facilitates the settlement among participants of
securities transactions, such as transfers and pledges, in deposited securities
through electronic computerized book-entry changes in participants' accounts,
thereby eliminating the need for physical movement of securities certificates.
Direct participants of DTC include securities brokers and dealers, banks, trust
companies, clearing corporations and other organizations. DTC is owned by a
number of its direct participants and by the NYSE, the AMEX and the National
Association of Securities Dealers, Inc. Access to DTC's system is also
available to others such as securities brokers and dealers, banks and trust
companies that clear through or maintain a custodial relationship with a direct
participant, either directly or indirectly. The rules applicable to DTC and its
participants are on file with the SEC.

     Purchases of STRIDES Securities under DTC's system must be made by or
through direct participants, which will receive a credit for the STRIDES
Securities on DTC's records. The ownership interest of each beneficial owner is
in turn to be recorded on the records of direct and indirect participants.
Beneficial owners will not receive written confirmation from DTC of their
purchase, but beneficial owners are expected to receive written confirmations
providing details of the transaction, as well as periodic statements of their
holdings, from the direct participants or indirect participants through which
the beneficial owner entered into the transaction. Transfers of ownership
interests in the STRIDES Securities are to be accomplished by entries made on
the books of participants acting on behalf of beneficial owners.

     To facilitate subsequent transfers, all STRIDES Securities deposited with
DTC are registered in the name of DTC's partnership nominee, Cede & Co. The
deposit of STRIDES Securities with DTC and their registration in the name of
Cede & Co. effect no change in beneficial ownership. DTC has no knowledge of
the actual beneficial owners of the STRIDES Securities; DTC's records reflect
only the identity of the direct participants to whose accounts the STRIDES
Securities are credited, which may or may not be the beneficial owners. The
participants will remain responsible for keeping account of their holdings on
behalf of their customers.

     Conveyance of notices and other communications by DTC to direct
participants, by direct participants to indirect participants, and by direct
and indirect participants to beneficial owners will be governed by arrangements
among them, subject to any statutory or regulatory requirements as may be in
effect from time to time.

     Neither DTC nor Cede & Co. will consent or vote with respect to the
STRIDES Securities. Under its usual procedures, DTC mails an omnibus proxy to
ML&Co. as soon as possible after the applicable record date. The omnibus proxy
assigns Cede & Co.'s consenting or voting rights to those direct participants
identified in a listing attached to the omnibus proxy to whose accounts the
STRIDES Securities are credited on the record date identified in a listing
attached to the omnibus proxy.

     Principal, premium, if any, and/or interest, if any, payments on the
STRIDES Securities will be made in immediately available funds to DTC. DTC's
practice is to credit direct participants' accounts on the applicable payment
date in accordance with their respective holdings shown on the depositary's
records unless DTC has reason to believe that it will not receive payment on
that date. Payments by participants to beneficial owners will be governed by
standing instructions and customary practices, as is the case with securities
held for the accounts of customers in bearer form or registered in "street
name", and will be the responsibility of the participant and not of DTC, the
trustee or ML&Co., subject to any statutory or regulatory requirements as may
be in effect from time to time. Payment of principal, premium, if any, and/or
interest, if any, to DTC is the responsibility of ML&Co. or the trustee,
disbursement of payments to direct participants is the responsibility of DTC,
and disbursement of payments to the beneficial owners is the responsibility of
direct and indirect participants.

     Exchange for Certificated Securities

     If:

     o    the depositary is at any time unwilling or unable to continue as
          depositary and a successor depositary is not appointed by ML&Co.
          within 60 days,

     o    ML&Co. executes and delivers to the Trustee a company order to the
          effect that the global securities shall be exchangeable, or

     o    an Event of Default under the 1983 Indenture has occurred and is
          continuing with respect to the STRIDES Securities,

the global securities will be exchangeable for STRIDES Securities in definitive
form of like tenor and of an equal aggregate principal amount, in denominations
of $10 and integral multiples of $10. The definitive STRIDES Securities will be
registered in the name or names as the depositary shall instruct the trustee.
It is expected that instructions may be based upon directions received by the
depositary from participants with respect to ownership of beneficial interests
in the global securities.

     In addition, ML&Co. may decide to discontinue use of the system of
book-entry transfers through the depositary. In that event, STRIDES Securities
in definitive form will be printed and delivered.

     The information in this section concerning DTC and DTC's system has been
obtained from sources that ML&Co. believes to be reliable, but ML&Co. takes no
responsibility for its accuracy.

Same-Day Settlement and Payment

     ML&CO., if any, will make all payments of principal and the Supplemental
Redemption Amount, in immediately available funds so long as the STRIDES
Securities are maintained in book-entry form.


                                   THE INDEX

     The Nasdaq-100 Index(R) is a modified capitalization-weighted index of 100
of the largest and most actively traded stocks of non-financial companies
listed on the Nasdaq National Market tier of the Nasdaq Stock Market. The Index
was first published in January 1985 and includes companies across a variety of
major industry groups. As of December 31, 1998, the major industry groups
covered in the Index, listed according to their respective capitalization in
the Index, were as follows: computer and office equipment (32.6%), computer
software/services (30.2%), telecommunications (17.8%), retail/wholesale trade
(8.0%), biotechnology (5.0%), services (2.4%), health care (2.1%),
manufacturing (1.5%) and transportation (0.4%). The identity and capitalization
weightings of the five largest companies represented in the Index as of
December 31, 1998 were as follows: Microsoft Corporation (14.5%), Intel
Corporation (8.4%), Cisco Systems, Inc. (6.4%), MCI WORLDCOM, Inc. (5.8%), and
Dell Computer Corporation (4.2%). Current information regarding the market
value of the Index is available from Nasdaq as well as numerous market
information services. The Index is determined, comprised and calculated by
Nasdaq without regard to the STRIDES Securities.

     The Index share weights of the component securities, or Underlying Stocks,
of the Index at any time are based upon the total shares outstanding in each of
the 100 securities in the Index and are additionally subject, in some cases, to
rebalancing to ensure that the relative weighting of the Underlying Stocks
continues to meet minimum pre-established requirements for a diversified
portfolio. Accordingly, each Underlying Stock's influence on the value of the
Index is directly proportional to the value of its Index share weight. At any
moment in time, the value of the Index equals the aggregate value of the then
current Index share weights of each of the component 100 Underlying Stocks
multiplied by each security's respective last sale price on the Nasdaq Stock
Market, and divided by a scaling factor (the "divisor") which becomes the basis
for the reported Index value. The divisor serves the purpose of scaling the
aggregate value, otherwise in the trillions, to a lower order of magnitude
which is more desirable for Index reporting purposes.

     After the close of trading on December 18, 1998, the Index share weights
of the component securities in the Index were rebalanced in accordance with the
modified capitalization weighted methodology implemented on that date. Hence,
the performance of the Index after December 18, 1998 will reflect the
performance of the securities in the Index as calculated in accordance with the
revised Index methodology.

Computation of the Index

Underlying Stock Eligibility Criteria and Annual Ranking Review

     To be eligible for inclusion in the Index, a security must be traded on
the Nasdaq National Market tier of the Nasdaq Stock Market and meet the
following criteria:

     (1)  the security must be of a non-financial company;

     (2)  only one class of security per issuer is allowed;

     (3)  the security may not be issued by an issuer currently in bankruptcy
          proceedings;

     (4)  the security must have average daily trading volume of at least
          100,000 shares per day;

     (5)  the security must have "seasoned" on the Nasdaq Stock Market or
          another recognized market, generally, a company is considered to be
          seasoned by Nasdaq if it has been listed on a market for at least two
          years; in the case of spin-offs, the operating history of the
          spin-off will be considered;

     (6)  if a security would otherwise qualify to be in the top 25% of the
          issuers included in the Index by market capitalization, then a one
          year "seasoning" criteria would apply;

     (7)  if the security is of a foreign issuer, the company must have a
          worldwide market value of at least $10 billion, a U.S. market value
          of at least $4 billion, and average trading volume on the Nasdaq
          Stock Market of at least 200,000 shares per day; in addition, foreign
          securities must be eligible for listed options trading; and

     (8)  the issuer of the security may not have entered into a definitive
          agreement or other arrangement which would result in the security no
          longer being listed on the Nasdaq Stock Market within the next six
          months.

     These Index eligibility criteria may be revised from time to time by the
NASD without regard to the STRIDES Securities.

     The Underlying Stocks are evaluated annually as follows (the evaluation is
referred to as the "Annual Ranking Review"). Securities listed on the Nasdaq
Stock Market which meet the above eligibility criteria are ranked by market
value. Index-eligible securities which are already in the Index and which are
in the top 150 eligible securities, based on market value, are retained in the
Index provided that the security was ranked in the top 100 eligible securities
as of the previous year's annual review. Securities not meeting this criteria
are replaced. The replacement securities chosen are those Index-eligible
securities not currently in the Index which have the largest market
capitalization. The list of annual additions and deletions is publicly
announced via a press release in the early part of December. Replacements are
made effective after the close of trading on the third Friday in December.
Moreover, if at any time during the year an Underlying Stock is no longer
traded on the Nasdaq Stock Market, or is otherwise determined by Nasdaq to
become ineligible for continued inclusion in the Index, the security will be
replaced with the largest market capitalization security not currently in the
Index and meeting the Index eligibility criteria listed above.

     In addition to the Annual Ranking Review, the securities in the Index are
monitored every day by Nasdaq with respect to changes in total shares
outstanding arising from secondary offerings, stock repurchases, conversions,
or other corporate actions. Nasdaq has adopted the following quarterly
scheduled weight adjustment procedures with respect to these changes. If the
change in total shares outstanding arising from corporate action is greater
than or equal to 5.0%, the change is ordinarily made to the Index on the
evening prior to the effective date of the corporate action. Otherwise, if the
change in total shares outstanding is less than 5%, then all of these changes
are accumulated and made effective at one time on a quarterly basis after the
close of trading on the third Friday in each of March, June, September, and
December. In either case, the Index share weights for the Underlying Stocks are
adjusted by the same percentage amount by which the total shares outstanding
have changed in the Underlying Stocks. Ordinarily, whenever there is a change
in Index share weights or a change in a component security included in the
Index, Nasdaq adjusts the divisor to assure that there is no discontinuity in
the value of the Index which might otherwise be caused by any the change.

Rebalancing of the Index

     Effective after the close of trading on December 18, 1998 Nasdaq has
calculated the Index under a "modified capitalization-weighted" methodology,
which is a hybrid between equal weighting and conventional capitalization
weighting. This methodology is expected to:

     o    retain in general the economic attributes of capitalization
          weighting;

     o    promote portfolio weight diversification, thereby limiting domination
          of the Index by a few large stocks;

     o    reduce Index performance distortion by preserving the capitalization
          ranking of companies; and

     o    reduce market impact on the smallest Underlying Stocks from necessary
          weight rebalancings.

     Under the methodology employed, on a quarterly basis coinciding with
Nasdaq's quarterly scheduled weight adjustment procedures, the Underlying
Stocks are categorized as either "Large Stocks" or "Small Stocks" depending on
whether their current percentage weights, after taking into account the
scheduled weight adjustments due to stock repurchases, secondary offerings, or
other corporate actions, are greater than, or less than or equal to, the
average percentage weight in the Index, for example, as a 100-stock index, the
average percentage weight in the Index is 1.0%.

     The quarterly examination will result in an Index rebalancing if either
one or both of the following two weight distribution requirements are not met:
(1) the current weight of the single largest market capitalization Underlying
Stock must be less than or equal to 24.0% and (2) the "collective weight" of
those Underlying Stocks whose individual current weights are in excess of 4.5%,
when added together, must be less than or equal to 48.0%.

     If either one or both of these weight distribution requirements are not
met upon quarterly review, a weight rebalancing will be performed in accordance
with the following plan. First, relating to weight distribution requirement (1)
above, if the current weight of the single largest Underlying Stock exceeds
24.0%, then the weights of all Large Stocks will be scaled down proportionately
towards 1.0% by enough for the adjusted weight of the single largest Underlying
Stock to be set to 20.0%. Second, relating to weight distribution requirement
(2) above, for those Underlying Stocks whose individual current weights or
adjusted weights in accordance with the preceding step are in excess of 4.5%,
if their "collective weight" exceeds 48.0%, then the weights of all Large
Stocks will be scaled down proportionately towards 1.0% by just enough for the
"collective weight," so adjusted, to be set to 40.0%.

     The aggregate weight reduction among the Large Stocks resulting from
either or both of the above rescalings will then be redistributed to the Small
Stocks in the following iterative manner. In the first iteration, the weight of
the largest Small Stock will be scaled upwards by a factor which sets it equal
to the average Index weight of 1.0%. The weights of each of the smaller
remaining Small Stocks will be scaled up by the same factor reduced in relation
to each stock's relative ranking among the Small Stocks so that the smaller the
Underlying Stock in the ranking, the less the scale-up of its weight. This is
intended to reduce the market impact of the weight rebalancing on the smallest
component securities in the Index.

     In the second iteration, the weight of the second largest Small Stock,
already adjusted in the first iteration, will be scaled upwards by a factor
which sets it equal to the average index weight of 1.0%. The weights of each of
the smaller remaining Small Stocks will be scaled up by this same factor
reduced in relation to each stock's relative ranking among the Small Stocks so
that, once again, the smaller the stock in the ranking, the less the scale-up
of its weight.

     Additional iterations will be performed until the accumulated increase in
weight among the Small Stocks exactly equals the aggregate weight reduction
among the Large Stocks from rebalancing in accordance with weight distribution
requirement (1) and/or weight distribution requirement (2).

     Then, to complete the rebalancing procedure, once the final percent
weights of each Index Security are set, the Index share weights will be
determined anew based upon the last sale prices and aggregate capitalization of
the Index at the close of trading on the Thursday in the week immediately
preceding the week of the third Friday in March, June, September, and December.
Changes to the Index share weights will be made effective after the close of
trading on the third Friday in March, June, September, and December and an
adjustment to the Index divisor will be made to ensure continuity of the Index.

     Effective after the close of trading on December 18, 1998, the Index was
rebalanced in accordance with the above methodology. As a result of the
rebalancing, the Index share weights of the five (5) stocks whose unadjusted
weights were in excess of 4.5% were adjusted downwards on that date. As of the
close of trading on December 31, 1998, the weights of these five stocks in the
Index as rebalanced, in relation to what they would have been if the Index were
not rebalanced, were as follows: Microsoft Corporation (14.5% vs. 22.5%), Intel
Corporation (8.4% vs. 12.8%), Cisco Systems, Inc. (6.4% vs. 9.5%), MCI
WORLDCOM, Inc. (5.8% vs. 8.5%), and Dell Computer Corporation (4.2% vs. 6.1%).

     The following table sets forth the level of the Index at the end of each
month, in the period from January 1989 through February 1999. These historical
data on the Index are not necessarily indicative of the future performance of
the Index or what the value of the STRIDES Securities may be. Any historical
upward or downward trend in the level of the Index during any period set forth
below is not an indication that the Index is more or less likely to increase or
decrease at any time during the term of the STRIDES Securities.


<TABLE>
<CAPTION>

                    1989      1990     1991     1992      1993     1994     1995      1996       1997       1998        1999
                    ----      ----     ----     ----      ----     ----     ----      ----       ----       ----        ----
<S>                <C>       <C>      <C>      <C>       <C>      <C>      <C>       <C>         <C>       <C>        <C>     
January.........   186.47    201.94   232.43   338.32    370.56   413.99   405.33    591.82      921.55    1,071.13   2,127.19
February........   183.79    207.92   250.12   345.88    351.14   412.17   432.50    622.83      850.46    1,194.13    
March...........   185.87    213.15   264.91   323.05    359.42   382.96   447.15    609.69      797.06    1,220.66         --
April...........   200.47    205.82   263.66   307.86    339.95   373.25   469.56    666.73      874.74    1,248.12         --
May.............   214.55    236.15   279.00   315.30    368.11   378.85   488.10    692.39      958.85    1,192.07         --
June............   204.59    238.46   254.20   301.23    366.13   360.30   538.03    677.30      957.30    1,337.34         --
July............   214.28    223.39   272.16   310.90    352.87   370.16   568.88    636.01    1,107.03    1,377.26         --
August..........   222.01    193.62   287.41   299.26    372.65   397.90   576.77    663.57    1,074.17    1,140.34         --
September.......   226.42    177.06   287.54   313.19    382.72   393.85   585.08    737.58    1,097.17    1,345.48         --
October.........   222.62    172.56   292.51   329.16    390.99   413.05   598.78    751.99    1,019.62    1,400.52         --
November........   224.45    192.66   284.79   350.96    386.76   404.82   593.72    834.01    1,050.51    1,557.96         --
December........   223.84    200.53   330.86   360.19    398.28   404.27   576.23    821.36      990.80    1,836.01         --

</TABLE>
                                         
License Agreement

     The Nasdaq Stock Market, Inc. and Merrill Lynch & Co., Inc. have entered
into a non-exclusive license agreement providing for the license to ML&Co., in
exchange for a fee, of the right to use the Index in connection with certain
securities, including the STRIDES Securities.

     The license agreement between Nasdaq and ML&Co. provides that the
following language must be stated in this prospectus:

     "The STRIDES Securities are not sponsored, endorsed, sold or promoted by,
     The Nasdaq Stock Market, Inc. (including its affiliates) (Nasdaq, with its
     affiliates, are referred to as the "Corporations"). The Corporations have
     not passed on the legality or suitability of, or the accuracy or adequacy
     of descriptions and disclosures relating to, the STRIDES Securities. The
     Corporations make no representation or warranty, express or implied to the
     owners of the STRIDES Securities or any member of the public regarding the
     advisability of investing in securities generally or in the STRIDES
     Securities particularly, or the ability of the Nasdaq-100 Index(R) to
     track general stock market performance. The Corporations' only
     relationship to ML&Co. is in the licensing of the Nasdaq-100(R),
     Nasdaq-100 Index(R), and Nasdaq(R) trademarks or service marks, and trade
     names of the Corporations and the use of the Nasdaq-100 Index(R) which is
     determined, composed and calculated by Nasdaq without regard to ML&Co. or
     the STRIDES Securities. Nasdaq has no obligation to take the needs of
     ML&Co. or the owners of the STRIDES Securities into consideration in
     determining, composing or calculating the Nasdaq-100 Index(R). The
     Corporations are not responsible for and have not participated in the
     determination of the timing of, prices at, or quantities of the STRIDES
     Securities to be issued or in the determination or calculation of the
     equation by which the STRIDES Securities is to be converted into cash. The
     Corporations have no liability in connection with the administration,
     marketing or trading of the STRIDES Securities.

     The Corporations do not guarantee the accuracy and/or uninterrupted
     calculation of the Nasdaq-100 Index(R) or any data included therein. The
     Corporations make no warranty, express or implied, as to results to be
     obtained by ML&Co., owners of the STRIDES Securities, or any other person
     or entity from the use of the Nasdaq-100 Index(R) or any data included
     therein. The Corporations make no express or implied warranties, and
     expressly disclaim all warranties of merchantability or fitness for a
     particular purpose or use with respect to the Nasdaq-100 Index(R) or any
     data included therein. Without limiting any of the foregoing, in no event
     shall the Corporations have any liability for any lost profits or special,
     incidental, punitive, indirect, or consequential damages, even if notified
     of the possibility of such damages."

     All disclosures contained in this prospectus regarding the Index,
including its make-up, method of calculation and changes in its components, are
derived from publicly available information prepared by Nasdaq. ML&Co. and
MLPF&S do not assume any responsibility for the accuracy or completeness of
this information.


                                  OTHER TERMS

     ML&Co. issued the STRIDES Securities as a series of senior debt securities
under the 1983 Indenture, dated as of April 1, 1983, as amended and restated,
between ML&Co. and The Chase Manhattan Bank, as trustee. A copy of the 1983
Indenture is filed as an exhibit to the registration statement relating to the
STRIDES Securities of which this prospectus is a part. The following summaries
of the material provisions of the 1983 Indenture are not complete and are
subject to, and qualified in their entirety by reference to, all provisions of
the 1983 Indenture, including the definitions of terms in the 1983 Indenture.

     ML&Co. may issue series of senior debt securities from time to time under
the 1983 Indenture, without limitation as to aggregate principal amount, in one
or more series and upon terms as ML&Co. may establish under the provisions of
the 1983 Indenture.

     The 1983 Indenture and the STRIDES Securities are governed by and
construed in accordance with the laws of the State of New York.

     ML&Co. may issue senior debt securities with terms different from those of
senior debt securities previously issued, and issue additional senior debt
securities of a previously issued series of senior debt securities.

     The senior debt securities are unsecured and rank equally with all other
unsecured and unsubordinated indebtedness of ML&Co. However, because ML&Co. is
a holding company, the rights of ML&Co. and its creditors, including the
holders of senior debt securities, to participate in any distribution of the
assets of any subsidiary upon its liquidation or reorganization or otherwise
are necessarily subject to the prior claims of creditors of the subsidiary,
except to the extent that a bankruptcy court may recognize claims of ML&Co.
itself as a creditor of the subsidiary. In addition, dividends, loans and
advances from certain subsidiaries, including MLPF&S, to ML&Co. are restricted
by net capital requirements under the Exchange Act, and under rules of
exchanges and other regulatory bodies.

Limitations Upon Liens

     ML&Co. may not, and may not permit any majority-owned subsidiary to,
create, assume, incur or permit to exist any indebtedness for borrowed money
secured by a pledge, lien or other encumbrance, other than those liens
specifically permitted by the 1983 Indenture, on the Voting Stock owned
directly or indirectly by ML&Co. of any majority-owned subsidiary, other than a
majority-owned subsidiary which, at the time of the incurrence of the secured
indebtedness, has a net worth of less than $3,000,000, unless the outstanding
senior debt securities are secured equally and ratably with the secured
indebtedness.

     "Voting Stock" is defined in the 1983 Indenture as the stock of the class
or classes having general voting power under ordinary circumstances to elect at
least a majority of the board of directors, managers or trustees of a
corporation provided that, for the purposes of the 1983 Indenture, stock that
carries only the right to vote conditionally on the occurrence of an event is
not considered voting stock whether or not the event has happened.

Limitation on Disposition of Voting Stock of, and Merger and Sale of
Assets by, MLPF&S

     ML&Co. may not sell, transfer or otherwise dispose of any Voting Stock of
MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of its
Voting Stock, unless, after giving effect to any transaction, MLPF&S remains a
Controlled Subsidiary.

     "Controlled Subsidiary" is defined in the 1983 Indenture to mean a
corporation more than 80% of the outstanding shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

     In addition, ML&Co. may not permit MLPF&S to:

     o    merge or consolidate, unless the surviving company is a Controlled
          Subsidiary, or

     o    convey or transfer its properties and assets substantially as an
          entirety, except to one or more Controlled Subsidiaries.

Merger and Consolidation

     ML&Co. may consolidate or merge with or into any other corporation and
ML&Co. may sell, lease or convey all or substantially all of its assets to any
corporation, provided that:

     o    the resulting corporation, if other than ML&Co., is a corporation
          organized and existing under the laws of the United States of America
          or any U.S. state and assumes all of ML&Co.'s obligations to:

          o    pay any amounts due and payable or deliverable  with respect to
               all the senior debt securities; and

          o    perform and observe all of ML&Co.'s  obligations under the 1983
               Indenture, and

     o    ML&Co. or the successor corporation, as the case may be, is not,
          immediately after any consolidation or merger, in default under the
          1983 Indenture.

Modification and Waiver

     ML&Co. and the trustee may modify and amend the 1983 Indenture with the
consent of holders of at least 66 2/3% in principal amount of each outstanding
series of senior debt securities affected. However, without the consent of each
holder of any outstanding senior debt security affected, no amendment or
modification to the 1983 Indenture may:

     o    change the stated maturity date of the principal of, or any
          installment of interest or Additional Amounts payable on, any senior
          debt security or any premium payable on redemption, or change the
          redemption price;

     o    reduce the principal amount of, or the interest or Additional Amounts
          payable on, any senior debt security or reduce the amount of
          principal which could be declared due and payable before the stated
          maturity date;

     o    change the place or currency of any payment of principal or any
          premium, interest or Additional Amounts payable on any senior debt
          security;

     o    impair the right to institute suit for the enforcement of any payment
          on or with respect to any senior debt security;

     o    reduce the percentage in principal amount of the outstanding senior
          debt securities of any series, the consent of whose holders is
          required to modify or amend the 1983 Indenture; or

     o    modify the foregoing requirements or reduce the percentage of
          outstanding senior debt securities necessary to waive any past
          default to less than a majority.

     No modification or amendment of ML&Co.'s Subordinated Indenture or any
Subsequent Indenture for subordinated debt securities may adversely affect the
rights of any holder of ML&Co.'s senior indebtedness without the consent of
each holder affected. The holders of at least a majority in principal amount of
outstanding senior debt securities of any series may, with respect to that
series, waive past defaults under the 1983 Indenture and waive compliance by
ML&Co. with provisions in the 1983 Indenture, except as described under
"--Events of Default".

Events of Default

     Each of the following will be Events of Default with respect to senior
debt securities of any series:

     o    default in the payment of any interest or Additional Amounts payable
          when due and continuing for 30 days;

     o    default in the payment of any principal or premium when due;

     o    default in the deposit of any sinking fund payment, when due;

     o    default in the performance of any other obligation of ML&Co.
          contained in the 1983 Indenture for the benefit of that series or in
          the senior debt securities of that series, continuing for 60 days
          after written notice as provided in the 1983 Indenture;

     o    specified events in bankruptcy, insolvency or reorganization of
          ML&Co.; and

     o    any other Event of Default provided with respect to senior debt
          securities of that series which are not inconsistent with the 1983
          Indenture.

     If an Event of Default occurs and is continuing for any series of senior
debt securities, other than as a result of the bankruptcy, insolvency or
reorganization of ML&Co., the trustee or the holders of at least 25% in
principal amount of the outstanding senior debt securities of that series may
declare all amounts, or any lesser amount provided for in the senior debt
securities, due and payable or deliverable immediately. At any time after a
declaration of acceleration has been made with respect to senior debt
securities of any series but before the trustee has obtained a judgment or
decree for payment of money, the holders of a majority in principal amount of
the outstanding senior debt securities of that series may rescind any
declaration of acceleration and its consequences, if all payments due, other
than those due as a result of acceleration, have been made and all Events of
Default have been remedied or waived.

     The holders of a majority in principal amount or aggregate issue price of
the outstanding senior debt securities of that series may waive any Event of
Default with respect to that series, except a default:

     o    in the payment of any amounts due and payable or deliverable under
          the debt securities of that series; or

     o    in respect of an obligation or provision of the 1983 Indenture which
          cannot be modified under the terms of that Indenture without the
          consent of each holder of each outstanding security of each series of
          senior debt securities affected.

     The holders of a majority in principal amount of the outstanding senior
debt securities of a series may direct the time, method and place of conducting
any proceeding for any remedy available to the trustee or exercising any trust
or power conferred on the trustee with respect to those senior debt securities,
provided that any direction shall not be in conflict with any rule of law or
the 1983 Indenture. Before proceeding to exercise any right or power under the
1983 Indenture at the direction of the holders, the trustee shall be entitled
to receive from the holders reasonable security or indemnification against the
costs, expenses and liabilities which might be incurred by it in complying with
any direction.

     The STRIDES Securities and other series of senior debt securities issued
under the 1983 Indenture do not have the benefit of any cross-default
provisions with other indebtedness of ML&Co.

     ML&Co. is required to furnish to the trustee annually a statement as to
the fulfillment by ML&Co. of all of its obligations under the 1983 Indenture.


                      WHERE YOU CAN FIND MORE INFORMATION

     We file reports, proxy statements and other information with the SEC. Our
SEC filings are also available over the Internet at the SEC's web site at
http://www.sec.gov. You may also read and copy any document we file by visiting
the SEC's public reference rooms in Washington, D.C., New York, New York, and
Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further
information about the public reference rooms. You may also inspect our SEC
reports and other information at the New York Stock Exchange, Inc., 20 Broad
Street, New York, New York 10005.

     We have filed a registration statement on Form S-3 with the SEC covering
the STRIDES Securities and other securities. For further information on ML&Co.
and the STRIDES Securities, you should refer to our registration statement and
its exhibits. This prospectus summarizes material provisions of contracts and
other documents that we refer you to. Because the prospectus may not contain
all the information that you may find important, you should review the full
text of these documents. We have included copies of these documents as exhibits
to our registration statement of which this prospectus is a part.


               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

     The SEC allows us to incorporate by reference the information we file with
them, which means:

     o    incorporated documents are considered part of the prospectus;

     o    we can disclose important information to you by referring you to
          those documents; and

     o    information that we file with the SEC will automatically update and
          supersede this incorporated information.

     We incorporate  by reference the documents  listed below which were filed
with the SEC under the Exchange Act:

     o    annual report on Form 10-K for the year ended December 25, 1998; and

     o    current reports on Form 8-K dated December 28, 1998, January 19,
          1999, February 17, 1999, February 18, 1999, February 22, 1999,
          February 23, 1999 and March 26, 1999.

     We also incorporate by reference each of the following documents that we
will file with the SEC after the date of this prospectus until this offering is
completed or after the date of this initial registration statement and before
the effectiveness of the registration statement:

     o    reports filed under Sections 13(a) and (c) of the Exchange Act;

     o    definitive proxy or information statements filed under Section 14 of
          the Exchange Act in connection with any subsequent stockholders'
          meeting; and

     o    any reports filed under Section 15(d) of the Exchange Act.

     You should rely only on information contained or incorporated by reference
in this prospectus. We have not, and MLPF&S has not, authorized any other
person to provide you with different information. If anyone provides you with
different or inconsistent information, you should not rely on it. We are not,
and MLPF&S is not, making an offer to sell these securities in any jurisdiction
where the offer or sale is not permitted.

     You should assume that the information appearing in this prospectus is
accurate as of the date of this prospectus only. Our business, financial
condition and results of operations may have changed since that date.

     You may request a copy of any filings referred to above (excluding
exhibits), at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan, Jr., Corporate Secretary's Office, Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.


                              PLAN OF DISTRIBUTION

     This prospectus has been prepared in connection with secondary sales of
the STRIDES Securities and is to be used by MLPF&S when making offers and sales
related to market-making transactions in the STRIDES Securities.

     MLPF&S may act as principal or agent in these market-making transactions.

     ML&Co. may offer the STRIDES Securities on the AMEX or off the exchange in
negotiated transactions or otherwise.

     The distribution of the STRIDES Securities will conform to the
requirements set forth in the applicable sections of Rule 2720 of the Conduct
Rules of the NASD.


                                    EXPERTS

     The consolidated  financial  statements and the related financial statement
schedule  incorporated in this prospectus by reference from the Annual Report on
Form 10-K of Merrill  Lynch & Co.,  Inc. and  subsidiaries  have been audited by
Deloitte & Touche LLP, independent  auditors,  as stated in their reports (which
express an unqualified  opinion and which report on the  consolidated  financial
statements includes an explanatory paragraph for the change in accounting method
for certain  internal-use  software  development costs),  which are incorporated
herein by reference,  and have been so incorporated in reliance upon the reports
of such firm given upon their authority as experts in accounting and auditing.

<PAGE>
   
The information contained in this prospectus is not complete and may be
changed. We may not sell these securities until the registration statement
filed with the Securities and Exchange Commission is effective. This prospectus
is not an offer to sell these securities and it is not soliciting an offer to
buy these securities in any state where the offer or sale is permitted.
    

                             Subject to Completion
                  Preliminary Prospectus dated March 29, 1999

PROSPECTUS
                                                                       LOGO

                           Merrill Lynch & Co., Inc.
                       Energy Select Sector SPDR(R) Fund
          Market Index Target-Term Securities(R) due February 21, 2006
                             "MITTS(R) Securities"
                         $10 principal amount per unit

     This prospectus is to be used by Merrill Lynch & Co., Merrill Lynch,
Pierce, Fenner & Smith Incorporated, our wholly-owned subsidiary, when making
offers and sales related to market-making transactions in the MITTS Securities.

<TABLE>
<CAPTION>

The MITTS Securities:                                                 Payment at Maturity:
<S>                                                                   <C>
o  100% principal protection at maturity                              o  On the maturity date, for each unit of the MITTS
o  No payments prior to the maturity date                                Securities you own, you will receive a number of
o  Senior unsecured debt securities of Merrill Lynch &                   shares of the Energy Select Sector SPDR Fund, or
   Co, Inc.                                                              cash with an equal value, equal to the sum of the
o  Linked to the value of the Energy Select Sector SPDR                  principal amount of each unit and an additional
   Fund.                                                                 amount based on any percentage increase in the value
o  The MITTS Securities are listed on the American                       of the fund as described in this prospectus.
   Stock Exchange under the symbol "ESM"                              o  You will receive no less than the principal amount
                                                                         of your MITTS Securities.
</TABLE>


                Investing in the MITTS Securities involves risk.
     See "Risk Factors" beginning on page 10 of this prospectus supplement.
                             ---------------------

     Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if
this prospectus supplement or the accompanying prospectus of Merrill Lynch &
Co., Inc. is truthful or complete. Any representation to the contrary is a
criminal offense.

The sale price of the MITTS Securities will be the prevailing market price at 
                               the time of sale.

                             ---------------------
                              Merrill Lynch & Co.
                             ---------------------

             The date of this prospectus is ________________, 1999.

 "MITTS" and "Market Index Target-Term Securities" are registered service
                    marks owned by Merrill Lynch & Co., Inc.


<TABLE>
<CAPTION>
<PAGE>
      
                                                       TABLE OF CONTENTS

                                                          Prospectus

                                                                                                                Page
<S>                                                                                                              <C>
SUMMARY INFORMATION--Q&A...........................................................................................4
         What are the MITTS Securities?...........................................................................4
         What will I receive at the stated maturity date of the MITTS Securities?.................................4
         How is the Net Asset Value determined?...................................................................4
         When will I receive cash instead of shares of the Energy SPDR Fund?......................................4
         Will I be charged any transaction fees or expenses with respect to the shares of the Energy SPDR Fund?...7
         What is the Energy SPDR Fund?............................................................................7
         Will the MITTS Securities be listed on a stock exchange?.................................................8
         What is the role of MLPF&S?..............................................................................8
         Who is ML&Co.?...........................................................................................8
         Are there any risks associated with my investment?.......................................................8
RISK FACTORS......................................................................................................9
         The MITTS Securities are unlike typical equity or debt securities........................................9
         You may not earn a return on your investment.............................................................9
         Your return will not reflect the return of owning shares of the Energy SPDR Fund or the securities and
         other assets comprising the Energy SPDR Fund's investment portfolio......................................9
         Changes in the Net Asset Value per share of the Energy SPDR Fund will not exactly mirror changes in the
         Energy Select Sector Index...............................................................................9
         There may be an uncertain trading market for the MITTS Securities.......................................10
         There are many factors affecting the trading value of the MITTS Securities..............................10
         Absence of prior active market for shares of the Energy SPDR Fund.......................................11
         Concentration in energy-related securities..............................................................12
         No affiliation between ML&Co. and the Energy SPDR Fund..................................................12
         You will not have shareholder's rights until you receive share of the Energy SPDR Fund..................12
         Amounts payable on the MITTS Securities may be limited by state law.....................................12
         Potential conflicts.....................................................................................13
         Other Considerations....................................................................................13
MERRILL LYNCH & CO., INC.........................................................................................14
RATIO OF EARNINGS TO FIXED CHARGES...............................................................................15
DESCRIPTION OF THE MITTS SECURITIES..............................................................................16
         Delivery at Maturity....................................................................................16
         Fractional Shares.......................................................................................17
         Hypothetical Returns....................................................................................18
         Adjustments to the Net Asset Value; Market Disruption Events............................................19
         Termination of the Energy SPDR Fund.....................................................................19
         Events of Default and Acceleration......................................................................21
         Global Securities.......................................................................................21
         Same-Day Settlement and Delivery........................................................................23
THE ENERGY SPDR FUND.............................................................................................24
         License Agreement.......................................................................................25
OTHER TERMS......................................................................................................26
         Limitations Upon Liens..................................................................................26
         Limitation on Disposition of Voting Stock of, and Merger and Sale of Assets by, MLPF&S..................27
         Merger and Consolidation................................................................................27
         Modification and Waiver.................................................................................27
         Events of Default.......................................................................................28
PROJECTED PAYMENT SCHEDULE.......................................................................................29
WHERE YOU CAN FIND MORE INFORMATION..............................................................................30
         The Energy SPDR Fund....................................................................................30
INCORPORATION OF INFORMATION WE FILE WITH THE SEC................................................................30
PLAN OF DISTRIBUTION.............................................................................................33
EXPERTS..........................................................................................................33
</TABLE>


<PAGE>

                            SUMMARY INFORMATION--Q&A

     This summary includes questions and answers that highlight selected
information from the prospectus to help you understand The Energy Select Sector
SPDR(R) Fund Market Index Target-Term Securities(R) due February 21, 2006. You
should carefully read this prospectus to understand fully the terms of the
MITTS Securities as well as the tax and other considerations that should be
important to you in making a decision about whether to invest in the MITTS
Securities. You should carefully review the "Risk Factors" section, which
highlights some risks associated with an investment in the MITTS Securities, to
determine whether an investment in the MITTS Securities is appropriate for you.

     References to "ML&Co.", "we", "us" and "our" are to Merrill Lynch & Co.,
Inc.

     References in this prospectus to "MLPF&S" are to Merrill Lynch, Pierce,
Fenner & Smith Incorporated.

     References in this prospectus to "Energy SPDR Fund" are to the Energy
Select Sector SPDR Fund.

     We have attached the prospectus for the Energy SPDR Fund. You should
carefully read the Fund Prospectus to fully understand the operation and
management of the Energy SPDR Fund, particularly the fees and expenses
associated with shares of the Energy SPDR Fund which affect the Net Asset Value
per share of the Energy SPDR Fund and which will directly apply to you if we
choose to deliver these shares to you at maturity of the MITTS Securities. Our
affiliate, MLPF&S, is both a soliciting dealer in the shares of the Energy SPDR
Fund and the index compilation agent for the Energy Select Sector Index .
However, we are not affiliated with the Energy SPDR Fund or the Energy Select
Sector Index. The Energy SPDR Fund will not receive any of the proceeds from
the sale of the MITTS Securities and will not have any obligations with respect
to the MITTS Securities. WE HAVE ATTACHED THE FUND PROSPECTUS AND ARE
DELIVERING IT TO YOU TOGETHER WITH THIS PROSPECTUS FOR THE CONVENIENCE OF
REFERENCE ONLY. THE FUND PROSPECTUS DOES NOT CONSTITUTE A PART OF PROSPECTUS,
NOR IS IT INCORPORATED BY REFERENCE IN THIS PROSPECTUS.

What are the MITTS Securities?

     The MITTS Securities are a series of senior debt securities issued by
ML&Co. and are not secured by collateral. The MITTS Securities rank equally
with all of our other unsecured and unsubordinated debt. The MITTS Securities
will mature on February 21, 2006 and cannot be redeemed at an earlier date. You
will not receive any shares of the Energy SPDR Fund or any other payments on
the MITTS Securities until maturity.

     Each "unit" of MITTS Securities represents $10 principal amount of MITTS
Securities. You may transfer the MITTS Securities only in whole units. You will
not have the right to receive physical certificates evidencing your ownership
except under limited circumstances. Instead, the MITTS Securities were issued
in the form of a global certificate, which is held by The Depository Trust
Company, also known as DTC, or its nominee. Direct and indirect participants in
DTC record beneficial ownership of the MITTS Securities by individual
investors. You should refer to the section "Description of the MITTS
Securities--Depositary" in this prospectus.

What will I receive at the stated maturity date of the MITTS Securities?

     We have designed the MITTS Securities for investors who want to protect
their investment by receiving at least the principal amount of their investment
at maturity and who also want to participate in the appreciation, if any, in
the Net Asset Value per share of the Energy SPDR Fund. At maturity, you will
receive a number of shares, and an amount of cash equal to the value of any
fractional shares, of the Energy SPDR Fund, or cash with an equal value, equal
in value to the sum of the Principal Amount and the Supplemental Redemption
Amount, if any. We will determine the number of shares to be delivered to you
based on the Ending Value.

Principal Amount

     The Principal Amount per unit is $10.

Supplemental Redemption Amount

     The Supplemental Redemption Amount per unit will equal:

    $10 X    (Adjusted Ending Value-Starting Value)
             (------------------------------------)
             (            Starting Value          )

but will not be less than zero.

     "Starting Value" equals 22.4936, the Net Asset Value of one share of the
Energy SPDR Fund on February 11, 1999, the date the MITTS Securities were
priced for initial sale to the public.

     "Adjusted Ending Value" means the Ending Value, as reduced by the
application of the Adjustment Factor on each calculation day.

     "Ending Value" means the average of the Net Assets Values per share of the
Energy SPDR Fund at the close of the market on five Calculation Days shortly
before the maturity of the MITTS Securities. We may calculate the Ending Value
by reference to fewer than five or even a single day's Net Asset Value if,
during the calculation period, there is a disruption in the trading of a number
of the component stocks of the Energy Select Sector Index or options relating
to the shares of the Energy SPDR Fund, the Energy SPDR Fund is unable or
otherwise fails to issue a Net Asset Value for the shares of the Energy SPDR
Fund or the Energy SPDR Fund suspends the creation or redemption of its shares.
Please see the section entitled "Description of the MITTS
Securities--Adjustments to the Net Asset Value; Market Disruption Events" in
this prospectus.

     The "Adjustment Factor" equals 0.85% per year and will reduce the Net
Asset Value per share of the Energy SPDR Fund used to calculate the
Supplemental Redemption Amount. As a result of the application of the
Adjustment Factor, the adjusted Net Asset Value per share of the Energy SPDR
Fund used to calculate your Supplemental Redemption Amount at the maturity of
the MITTS Securities will be approximately 5.8% less than the actual Net Asset
Value per share of the Energy SPDR Fund on any day during the Calculation
Period. For a detailed discussion of how the Adjustment Factor will affect the
Net Asset Value per share of the Energy SPDR Fund used to calculate your
Supplemental Redemption Amount, i.e., the Adjusted Ending Value, see
"Description of the MITTS Securities--Delivery at Maturity" and "--Hypothetical
Returns" in this prospectus.

     For more specific information about the Supplemental Redemption Amount,
please see the section "Description of the MITTS Securities" in this
prospectus.



<PAGE>

Examples

     Here are two examples of Supplemental Redemption Amount calculations
assuming an Adjustment Factor of 0.85% per year:

Example 1--Adjusted Ending Value is less than the Starting Value at the
maturity date:

     Starting Value: 22.49
     Hypothetical Ending Value: 23.62
     Hypothetical Adjusted Ending Value: 22.25

<TABLE>
<S>                                                <C>                    <C>
                                                                           (Supplemental
                                                   (22.25 - 22.49)         Redemption Amount
Supplemental Redemption Amount (per unit) = $10 X  (-------------) =$0.00  cannot be less
                                                   (   22.49     )         than zero)
                                                                           
</TABLE>
                       
     Total value of shares delivered at maturity (per unit) = $10 + $0 = $10

Example 2--Adjusted Ending Value is greater than the Starting Value at the
maturity date:

     Starting Value: 22.49
     Hypothetical Ending Value: 35.99
     Hypothetical Adjusted Ending Value: 33.90

Supplemental Redemption Amount (per unit) = $10 X (33.90 - 22.49 )       
                                                  (--------------) = $5.07
                                                  (    22.49     )

  Total value of shares delivered at maturity (per unit) = $10 + $5.07 = $15.07


<PAGE>

How is the Net Asset Value determined?

     The "Net Asset Value" means the net asset value per share of the Energy
SPDR Fund as determined by the Energy SPDR Fund. The Energy SPDR Fund
calculates its Net Asset Value per share by dividing the value of its net
assets, i.e., the value of its total assets less total liabilities, by its
total number of shares outstanding. Expenses and fees, including the
management, administration and distribution fees, of the Energy SPDR Fund are
accrued daily and taken into account for purposes of determining Net Asset
Value. The Net Asset Value per share of the Energy SPDR Fund is determined by
the Energy SPDR Fund each Business Day after the close of trading on the New
York Stock Exchange, ordinarily 4:00 p.m., New York time. Shares of the Energy
SPDR Fund are listed on the AMEX under the trading symbol "XLE".

When will I receive cash instead of shares of the Energy SPDR Fund?

     If we choose to pay you the amount due to you at maturity in cash instead
of in shares of the Energy SPDR Fund which you would otherwise be entitled to
receive, we will pay you an amount of cash equal to the sum of the Principal
Amount and the Supplemental Redemption Amount, if any. In addition, if at any
time MLPF&S ceases to be a soliciting dealer in the shares of the Energy SPDR
Fund, we will pay the amount due to you in cash instead of shares. Please see
the section entitled "Description of the MITTS Securities--Delivery at
Maturity" in this prospectus supplement.

     In addition, in the event that we choose to deliver shares of the Energy
SPDR Fund at maturity, we will not distribute any fractional shares to you. We
will aggregate all amounts due to you in respect of the total number of units
you hold on the stated maturity date, and in lieu of delivering to you any
fractional shares of the Energy SPDR Fund to which you would otherwise be
entitled, we will pay you the cash value of these fractional shares based on
the Net Asset Value per share of the Energy SPDR Fund shortly before maturity.


Will I be charged any transaction fees or expenses with respect to the shares
of the Energy SPDR Fund?

     Unless and until we deliver shares of the Energy SPDR Fund to you in
satisfaction of our obligations under the MITTS Securities, you will not be
directly charged any management, administration, distribution or other
transaction fees or other expenses with respect to the shares of the Energy
SPDR Fund. However, because the Energy SPDR Fund accrues these fees and
expenses daily for purposes of determining the Net Asset Value of its shares,
the Net Asset Values used to calculate your Supplemental Redemption Amount will
reflect the deduction of these fees and expenses as well as the reduction
resulting from the application of the Adjustment Factor.

     If at maturity we deliver to you shares of the Energy SPDR Fund, you will
then become directly subject to ongoing account maintenance fees and some other
transaction expenses with respect to your shares so long as you hold these
shares.

     The accompanying Fund Prospectus describes the fees and expenses charged
by the Energy SPDR Fund in greater detail.

What is the Energy SPDR Fund?

     The Energy SPDR Fund is an index fund whose stated investment objective is
to provide investment results that, before expenses, correspond generally to
the price and yield performance of the publicly traded equity securities
comprising the Energy Select Sector Index. The Energy Select Sector Index
consists of the equity securities of publicly traded companies that are
components of the S&P 500 Index and are involved in the development and
production of energy products. Companies in the Energy Select Sector Index
develop and produce crude oil and natural gas, and provide drilling and other
energy related services. As of February 11, 1999, the Energy Select Sector
Index included 31 component stocks. A list of these securities and their index
weightings as of that date is set forth under the section "The Energy SPDR
Fund" in this prospectus. Our affiliate, MLPF&S, is both a soliciting dealer in
the shares of the Energy SPDR Fund and the Index Compilation Agent for the
Energy Select Sector Index. We are not affiliated with the Energy SPDR Fund or
the Energy Select Sector Index. The Energy SPDR Fund does not receive any of
the proceeds from the sale of, or have any obligations under, the MITTS
Securities. You should independently decide whether an investment in the MITTS
Securities and the Energy SPDR Fund is appropriate for you.

     The Energy SPDR Fund is one of nine investment funds comprising the Select
Sector SPDR Trust (the "Trust"), a management investment company registered
under the Investment Company Act of 1940, as amended. Each fund's investment
portfolio is comprised principally of constituent companies whose equity
securities are components of the S&P 500 Index, each representing one of nine
specified market sector indices. Each stock in the S&P 500 Index is allocated
to only one Select Sector Index. The combined companies of the nine Select
Sector Indices represent all of the companies whose stocks are components of
the S&P 500 Index.

     You should carefully read the Fund Prospectus accompanying this prospectus
to fully understand the operation and management of the Energy SPDR Fund. In
addition, because the Trust is subject to the registration requirements of the
Securities Act of 1933, as amended, and the Investment Company Act, the Trust
is required to file periodically information specified by the SEC. For more
information about the Energy SPDR Fund and the shares that you may receive at
maturity, information provided to or filed with the SEC by the Trust can be
inspected at the SEC's public reference facilities or accessed over the
Internet through a web site maintained by the SEC at http://www.sec.gov. You
may also obtain copies of these documents at no cost by calling the Trust at
(800) 843-2639 or by writing the Trust c/o ALPS Mutual Funds Services, Inc., at
370 17th Street, Suite 3100, Denver, CO 80202. Neither the Fund Prospectus nor
these other documents are incorporated by reference in this prospectus, and we
make no representation or warranty as to the accuracy or completeness of that
information.


Will the MITTS Securities be listed on a stock exchange?

     The MITTS Securities have been approved for listing on the AMEX under the
symbol "ESM".

What is the role of MLPF&S?

     Our subsidiary, MLPF&S, is the underwriter for the offering and sale of
the MITTS Securities.

     MLPF&S will be our agent for purposes of calculating the Adjusted Ending
Value and the Supplemental Redemption Amount. Under some circumstances, these
duties could result in a conflict of interest between MLPF&S's status as our
subsidiary and its responsibilities as calculation agent.

     MLPF&S also is a soliciting dealer in the shares of the Energy SPDR Fund
and is the index compilation agent for the Energy Select Sector Index. Under
some circumstances, these duties could result in a conflict of interest between
MLPF&S's status as our subsidiary and its responsibilities to the Energy SPDR
Fund and the Energy Select Sector Index. Please see the section entitled "Risk
Factors--Potential conflicts" in this prospectus.

Who is ML&Co.?

     Merrill Lynch & Co., Inc. is a holding company with various subsidiary and
affiliated companies that provide investment, financing, insurance and related
services on a global basis. For information about ML&Co., see the section
entitled "Merrill Lynch & Co., Inc." in this prospectus. You should also read
the other documents we have filed with the SEC, which you can find by referring
to the section "Where You Can Find More Information" in this prospectus.

Are there any risks associated with my investment?

     Yes, an investment in the MITTS Securities is subject to risks. Please
refer to the section "Risk Factors" in this prospectus.



<PAGE>



                                  RISK FACTORS

     Your investment in the MITTS Securities will involve risks. You should
carefully consider the following discussion of risks before deciding whether an
investment in the MITTS Securities is suitable for you.

The MITTS Securities are unlike typical equity or debt securities

     The MITTS Securities combine features of equity and debt instruments. For
example, like an equity instrument, the Supplemental Redemption Amount will be
based on the increase, if any, in the Net Asset Value per share of the Energy
SPDR Fund. However, as a holder of the MITTS Securities, you will not be
entitled to receive distributions that would be payable on the shares of the
Energy SPDR Fund if you had made a direct investment in the shares. In
addition, like a debt instrument, you will receive the principal amount of your
MITTS Securities on the maturity date. However, the terms of the MITTS
Securities differ from the terms of ordinary debt securities in that the
Supplemental Redemption Amount payable at maturity is not a fixed amount, but
is based on the Net Asset Value per share of the Energy SPDR Fund, as reduced
by the Adjustment Factor, determined on five, or, under particular
circumstances, fewer than five days shortly before the maturity date.

You may not earn a return on your investment

     You should be aware that at maturity we will pay you no more than $10 for
each unit of the MITTS Securities you own if the average value of the index
over five trading days shortly before the maturity does not exceed 22.4936.
This will be true even if, at some time during the life of the MITTS
Securities, the Net Asset Value per share of the Energy SPDR Fund, as reduced
by the Adjustment Factor, was higher than 22.4936 but later falls below
22.4936.

Your return will not reflect the return of owning shares of the Energy SPDR
Fund or the securities and other assets comprising the Energy SPDR Fund's
investment portfolio

     When determining the Supplemental Redemption Amount, if any, paid to you
at maturity, the Energy SPDR Fund's Net Asset Value per share, which reflects
the reduction of fund assets resulting from the accrual of the Energy SPDR
Fund's fees and expenses and any distributions made by the Energy SPDR Fund,
will also be reduced by the application of the Adjustment Factor. Consequently,
your return on the MITTS Securities will not reflect the return of owning the
shares of the Energy SPDR Fund or the securities and other assets comprising
the Energy SPDR Fund's investment portfolio.

Changes in the Net Asset Value per share of the Energy SPDR Fund will not
exactly mirror changes in the Energy Select Sector Index

     As indicated in the Fund Prospectus, the Energy SPDR Fund's investment
objective is to provide investment results that, before expenses, correspond
generally to the price and yield performance of the publicly traded equity
securities comprising the Energy Select Sector Index. However, because the
Energy SPDR Fund's investment portfolio may not hold all of the stocks in the
Energy Select Sector Index or may not hold each stock in the same weighting as
the Energy Select Sector Index, because the Energy SPDR Fund may hold other
assets and because the Net Asset Value per share of the Energy SPDR Fund
reflects the reduction of fund assets resulting from the accrual of fees and
expenses and the payment of distributions, if any, changes in the value of the
Energy Select Sector Index and in the Net Asset Value per share of the Energy
SPDR Fund are not expected to be identical. As stated in the Fund Prospectus,
the investment adviser to the Energy SPDR Fund believes that "over time, the
`tracking error' of the Energy SPDR Fund relative to the performance of the
Energy Select Sector Index, adjusted for the effect of the Energy SPDR Fund's
expenses, will be less than 5%". There is no assurance that the tracking error
will not be greater than 5% at any time, including the time that you may wish
to sell your MITTS Securities before the maturity date or at the time the
calculation agent determines the Supplemental Redemption Amount, if any.

Your yield may be lower than the yield on a standard debt security of
comparable maturity

     The amount we pay you at maturity may be less than the return you could
earn on other investments. Your yield may be less than the yield you would earn
if you bought a standard senior non-callable Merrill Lynch & Co., Inc. debt
security with the same maturity date. Your investment may not reflect the full
opportunity cost to you when you take into account factors that affect the time
value of money.

There may be an uncertain trading market for the MITTS Securities

     ML&Co. has listed the MITTS Securities on the AMEX under the trading
symbol "ESM". You cannot assume that a trading market will continue to exist
for the MITTS Securities. If a trading market in the MITTS Securities continues
to exist, there can be no assurance that there will be liquidity in the trading
market. The continued existence of a trading market for the MITTS Securities
will depend on our financial performance, and other factors such as the
increase, if any, in the Net Asset Value per share of the Energy SPDR Fund.

     If a limited trading market for the MITTS Securities exists, and you do
not wish to hold your investment until maturity, fewer buyers may want to
purchase your MITTS Securities. This may affect the price you receive if you
sell before maturity.

There are many factors affecting the trading value of the MITTS Securities

     We believe that the Net Asset Value per share of the Energy SPDR Fund and
a number of other factors will affect the market value of the MITTS Securities.
Some of these factors interrelate in complex ways; as a result, the effect of
any one factor may offset or magnify the effect of another factor. The
following paragraphs describe the expected impact on the trading value of the
MITTS Securities given a change in a specific factor, assuming all other
conditions remain constant.

     o    Net Asset Value. We expect that the market value of the MITTS
          Securities will depend substantially on the amount by which the Net
          Asset Value per share of the Energy SPDR Fund, as reduced by the
          Adjustment Factor, exceeds the Starting Value. Even if you choose to
          sell your MITTS Securities when the Net Asset Value per share of the
          Energy SPDR Fund, as reduced by the Adjustment Factor, exceeds the
          Starting Value, you may receive substantially less than the amount
          that would be payable at maturity based on that value because of the
          expectation that the Net Asset Value will continue to fluctuate until
          shortly before the maturity date when the Adjusted Ending Value is
          determined. If you choose to sell your MITTS Securities before the
          maturity date when the Net Asset Value per share of the Energy SPDR
          Fund, as adjusted by the Adjustment Factor, is below or not
          sufficiently above the Starting Value, you may receive less than the
          $10 Principal Amount per unit of MITTS Securities.

     o    Interest Rates. Because we will pay, at a minimum, the Principal
          Amount per unit of the MITTS Securities at maturity, we expect that
          changes in interest rates will effect the trading value of the MITTS
          Securities. In general, if U.S. interest rates increase, we expect
          that the trading value of the MITTS Securities will decrease and,
          conversely, if U.S. interest rates decrease, we expect that the
          trading value of the MITTS Securities will increase. Interest rates
          may also affect the U.S. economy and, in turn, the Net Asset Value of
          the Energy SPDR Fund. Rising interest rates may lower the Net Asset
          Value per share of the Energy SPDR Fund and, as a result, lower the
          trading value of the MITTS Securities and, conversely, falling
          interest rates may increase the Net Asset Value per share of the
          Energy SPDR Fund and, as a result, may increase the trading value of
          the MITTS Securities.

     o    Volatility of the Fund. Volatility is the term used to describe the
          size and frequency of market fluctuations. Generally, if the
          volatility of the Net Asset Value per share of the Energy SPDR Fund
          increases, we expect that the trading value of the MITTS Securities
          will increase and, conversely, if the volatility of the Net Asset
          Value per share of the Energy SPDR Fund decreases, we expect that the
          trading value of the MITTS Securities will decrease.

     o    Time Remaining to Maturity. The MITTS Securities may trade at a value
          above that which would be expected based on the level of interest
          rates and the Net Asset Value per share of the Energy SPDR Fund. This
          difference will reflect a "time premium" due to expectations
          concerning the Net Asset Value per share of the Energy SPDR Fund
          during the period before the maturity of the MITTS Securities.
          However, as the time remaining to the maturity of the MITTS
          Securities decreases, we expect that this time premium will decrease,
          lowering the trading value of the MITTS Securities.

     o    Dividend Yields. Generally, if dividend yields on the stocks
          comprising the Energy SPDR Fund increase, we expect that the trading
          value of the MITTS Securities will decrease, and conversely, if
          dividend yields on the stocks comprising the Energy SPDR Fund's
          investment portfolio decrease, we expect that the trading value of
          the MITTS Securities will increase.

     o    Changes in Our Credit Ratings. Our credit ratings are an assessment
          of our ability to pay our obligations. Consequently, real or
          anticipated changes in our credit ratings may affect the trading
          value of the MITTS Securities. However, because your return on your
          MITTS Securities is dependent upon factors in addition to our ability
          to pay our obligations under the MITTS Securities, such as the
          percentage increase in the Net Asset Value per share of the Energy
          SPDR Fund at maturity, an improvement in our credit ratings will not
          reduce other investment risks related to the MITTS Securities.

     We want you to understand that the impact of one of the factors specified
above, such as an increase in interest rates, may offset some or all of any
increase in the trading value of the MITTS Securities attributable to another
factor, such as an increase in the Net Asset Value per share of the Energy SPDR
Fund.

     In general, assuming all other relevant factors are held constant, we
expect that the effect on the trading value of the MITTS Securities of a given
change in any one of the factors listed above will be less if it occurs later
in the term of the MITTS Securities than if it occurs earlier in the term of
the MITTS Securities. However, we expect that the effect on the trading value
of the MITTS Securities of an increase or decrease in the Net Asset Value per
share of the Energy SPDR Fund will be greater if it occurs later in the term of
the MITTS Securities than if it occurs earlier in the term of the MITTS
Securities.


Absence of prior active market for shares of the Energy SPDR Fund

     The Energy SPDR Fund is a recently organized investment company and there
is limited operating history available. Although these shares are listed for
trading on the AMEX and a number of similar products have been traded on the
AMEX for varying periods of time, there is no assurance that an active trading
market will continue to exist for the shares of the Energy SPDR Fund. If a
trading market does continue to exist, there is no assurance that there will be
liquidity in the trading market.

Concentration in energy-related securities

     Because the Energy SPDR Fund's investment portfolio is predominantly
comprised of securities of companies in the energy-producing field, the value
of the MITTS Securities may be adversely affected by an economic downturn in
the energy industry. The companies whose securities comprise the Energy SPDR
Fund's investment portfolio produce crude oil and natural gas and provide
drilling and other energy production and distribution related services. Stock
prices for these types of companies are affected by supply and demand both for
their specific product or service and for energy products in general. The price
of oil and gas, exploration and production spending, government regulation,
political events and economic conditions will likewise affect the performance
of these companies. Correspondingly, companies in the energy field are subject
to swift energy price and supply fluctuations caused by events relating to
international politics, energy conservation, the results of exploration
projects, and tax and other governmental policies. Weak demand for these
companies' products or services or for energy products and services in general,
as well as negative developments in these other areas, would adversely affect
the performance of the Energy SPDR Fund and in turn, the trading value of the
MITTS Securities.

No affiliation between ML&Co. and the Energy SPDR Fund

     Our affiliate MLPF&S is both a soliciting dealer in the shares of the
Energy SPDR Fund and the Index Compilation Agent for the Energy Select Sector
Index. However, we are not affiliated with the Energy SPDR Fund or the Energy
Select Sector Index. The Energy SPDR Fund has no obligations with respect to
the MITTS Securities or amounts to be paid to you, including any obligation to
take the needs of ML&Co. or of beneficial owners of the MITTS Securities into
consideration for any reason. The Energy SPDR Fund did not receive any of the
proceeds from this offering and is not responsible for, and has not
participated in, the determination or calculation of the amount you will
receive on your MITTS Securities at maturity. In addition, the Energy SPDR Fund
is not involved with the administration or trading of the MITTS Securities and
has no obligations with respect to any amounts due under the MITTS Securities.

You will not have shareholder's rights until you receive share of the
Energy SPDR Fund

     Unless and until we deliver shares of the Energy SPDR Fund to you at the
maturity of the MITTS Securities, you will not be entitled to any rights with
respect to these shares including, without limitation, the right to receive
distributions on, to vote or to redeem these shares. For example, if the Energy
SPDR Fund sets a record date for a matter to be voted on by shareholders before
our delivery of the shares of the Energy SPDR Fund to you, you will not be
entitled to vote on that matter.

Amounts payable on the MITTS Securities may be limited by state law

     New York State law governs the indenture under which the MITTS Securities
were issued. New York has usury laws that limit the amount of interest that can
be charged and paid on loans, which includes debt securities like the MITTS
Securities. Under present New York law, the maximum rate of interest is 25% per
annum on a simple interest basis. This limit may not apply to debt securities
in which $2,500,000 or more has been invested.

     While we believe that New York law would be given effect by a state or
Federal court sitting outside of New York, many other states also have laws
that regulate the amount of interest that may be charged to and paid by a
borrower. We will promise, for the benefit of the holders of the MITTS
Securities, to the extent permitted by law, not to voluntarily claim the
benefits of any laws concerning usurious rates of interest.

Potential conflicts

     The calculation agent for the MITTS Securities is one of our subsidiaries.
In some circumstances, MLPF&S's role as our subsidiary and its responsibilities
as calculation agent for the MITTS Securities could give rise to conflicts of
interests between the calculation agent and the holders of the MITTS
Securities. These conflicts could occur, for instance, in connection with its
determination as to whether a Market Disruption Event (as defined below) has
occurred.

     MLPF&S is a soliciting dealer in the shares of the Energy SPDR Fund. In
some circumstances, MLPF&S's role as calculation agent for the MITTS Securities
and its role as a soliciting dealer in the shares could give rise to conflicts
of interests between the calculation agent and holders of the MITTS Securities.
These conflicts could occur in connection with its determination as to the
Adjusted Ending Value and the number of shares to be delivered at maturity.

     Additionally, MLPF&S serves as Index Compilation Agent for the Energy
Select Sector Index. In its capacity as Index Compilation Agent, MLPF&S
determines, in consultation with S&P, which securities of the S&P 500 it will
include in the Energy Select Sector Index. In some circumstances, MLPF&S's role
as calculation agent for the MITTS Securities and its role as Index Compilation
Agent could give rise to conflicts of interests between the calculation agent
and holders of the MITTS Securities.

     MLPF&S is required to carry out its duties as calculation agent in good
faith and using its reasonable judgment. However, you should be aware that
because we control MLPF&S, potential conflicts of interest could arise.

     We anticipate entering into an arrangement with one of our subsidiaries to
hedge the market risks associated with our obligation to pay amounts due under
the MITTS Securities. This subsidiary expects to make a profit in connection
with the arrangement. We did not seek competitive bids for the arrangement from
unaffiliated parties.

Other Considerations

     You should reach an investment decision with regard to the MITTS
Securities only after carefully considering the suitability of the MITTS
Securities in light of your particular circumstances.

         You should also consider the tax consequences of investing in the
MITTS Securities, some aspects of which are uncertain. You should consult with
your tax adviser. See "United States Federal Income Taxation" below.


<PAGE>


                           MERRILL LYNCH & CO., INC.

     We are a holding company that, through our U.S. and non-U.S. subsidiaries
and affiliates such as Merrill Lynch, Pierce, Fenner & Smith Incorporated,
Merrill Lynch Government Securities Inc., Merrill Lynch Capital Services, Inc.,
Merrill Lynch International, Merrill Lynch Capital Markets Bank Ltd., Merrill
Lynch Asset Management L.P. and Merrill Lynch Mercury Asset Management,
provides investment, financing, advisory, insurance, and related products on a
global basis, including:

     o    securities brokerage, trading and underwriting;

     o    investment banking, strategic services, including mergers and
          acquisitions and other corporate finance advisory activities;

     o    asset management and other investment advisory and recordkeeping
          services;

     o    trading and brokerage of swaps, options, forwards, futures and other
          derivatives;

     o    securities clearance services;

     o    equity, debt and economic research;

     o    banking, trust and lending services, including mortgage lending and
          related services; and

     o    insurance sales and underwriting services.

We provide these products and services to a wide array of clients, including
individual investors, small businesses, corporations, governments, governmental
agencies and financial institutions.

     Our principal executive office is located at World Financial Center, North
Tower, 250 Vesey Street, New York, New York 10281; our telephone number is
(212) 449-1000.

     If you want to find more information about us, please see the sections
entitled "Where You Can Find More Information" and "Incorporation of
Information We File with the SEC" in this prospectus.

     In this prospectus, "ML&Co.", "we", "us" and "our" refer specifically to
Merrill Lynch & Co., Inc., the holding company. ML&Co. is the issuer of the
MITTS Securities described in this prospectus.



<PAGE>


                       RATIO OF EARNINGS TO FIXED CHARGES

     In 1998, we acquired the outstanding shares of Midland Walwyn, Inc., in a
transaction accounted for as a pooling-of-interests. The following information
for the fiscal years 1994 through 1997 has been restated as if the two entities
had always been combined.

     The following table sets forth our historical ratios of earnings to fixed
charges for the periods indicated:

<TABLE>
<CAPTION>

                                                     Year Ended Last Friday in December
                                                     1994     1995     1996     1997     1998
                                                     ----------------------------------------

<S>                                                   <C>      <C>      <C>      <C>      <C>
Ratio of earnings to fixed charges(a).........        1.2      1.2      1.2      1.2      1.1

- ----------
(a)   The effect of combining Midland Walwyn did not change the ratios reported for the fiscal years 1994
      through 1997.

</TABLE>

     For the purpose of calculating the ratio of earnings to fixed charges,
"earnings" consist of earnings from continuing operations before income taxes
and fixed charges, excluding capitalized interest and preferred security
dividend requirements. "Fixed charges" consist of interest costs, the interest
factor in rentals, amortization of debt issuance costs, preferred security
dividend requirements of subsidiaries, and capitalized interest.


<PAGE>


                      DESCRIPTION OF THE MITTS SECURITIES

     On February 18, 1999, ML&Co. issued $51,000,000 aggregate principal
amount, or 5,100,000 units, of Energy Select Sector SPDR Fund MITTS Securities
due February 21, 2006. The MITTS Securities were issued as a series of senior
debt securities under the Senior Indenture, referred to as the 1983 Indenture,
which is more fully described in this prospectus. The MITTS Securities will
mature on February 21, 2006.

     While at maturity a beneficial owner of a MITTS Security will receive the
number of shares of the Energy SPDR Fund, or cash with an equal value, equal in
value, determined based on the Ending Value, to the sum of the Principal Amount
of each MITTS Security plus the Supplemental Redemption Amount, if any, there
will be no other payment of interest, periodic or otherwise. See "Delivery at
Maturity".

     The MITTS Securities are not subject to redemption by ML&Co. or at the
option of any beneficial owner prior to maturity. Upon the occurrence of an
Event of Default with respect to the MITTS Securities, beneficial owners of the
MITTS Securities may accelerate the maturity of the MITTS Securities, as
described under "Description of the MITTS Securities--Events of Default and
Acceleration" in this prospectus.

     The MITTS Securities were issued in denominations of whole units.

     The MITTS Securities do not have the benefit of any sinking fund.

Delivery at Maturity

     At maturity, a beneficial owner of a MITTS Security will be entitled to
receive the number of shares of the Energy SPDR Fund, or cash with an equal
value, equal in value as determined based on the Ending Value, to the Principal
Amount of each MITTS Security plus the Supplemental Redemption Amount, if any,
all as provided below. The amount to be paid by ML&Co. to any holder of the
MITTS Securities on the maturity date will be aggregated based on the total
number of units then held by each holder and rounded to the nearest cent. If
the Adjusted Ending Value does not exceed the Starting Value, a beneficial
owner of a MITTS Security will be entitled to receive only the number of shares
of the Energy SPDR Fund, or cash with an equal value, equal in value as
determined based on the Ending Value, to the Principal Amount of each MITTS
Security.

     If ML&Co. chooses to deliver shares of the Energy SPDR Fund to holders of
the MITTS Securities at the maturity date, ML&Co. or one of its affiliates will
deliver shares of the Energy SPDR Fund that are then newly issued by the Energy
SPDR Fund.

     ML&Co. may, at its option, in lieu of delivering shares of the Energy SPDR
Fund, pay cash in an amount equal to the sum of the Principal Amount of the
MITTS Securities and the Supplemental Redemption Amount, if any. In addition,
if at any time MLPF&S ceases to be a soliciting dealer in the shares of the
Energy SPDR Fund, ML&Co. will pay the amount due to holders of the MITTS
Securities in cash instead of shares.

Determination of the Supplemental Redemption Amount

     The Supplemental Redemption Amount for a MITTS Security will be determined
by the calculation agent and will equal:

Principal Amount of each MITTS Security
     ($10 per unit) X  ( Adjusted Ending Value - Starting Value )
                       ( ---------------------------------------)
                       (               Starting Value           )

provided, however, that in no event will the Supplemental Redemption Amount be
less than zero.

     The "Starting Value" equals 22.4936, the Net Asset Value of one share of
the Energy SPDR Fund on the Pricing Date.

     "Net Asset Value" means the net asset value per share of the Energy SPDR
Fund as determined by the Energy SPDR Fund. The Energy SPDR Fund calculates its
Net Asset Value per share by dividing the value of its net assets, i.e., the
value of its total assets less total liabilities, by its total number of shares
outstanding. Expenses and fees, including the management, administration and
distribution fees, of the Energy SPDR Fund are accrued daily and taken into
account for purposes of determining its Net Asset Value. The Net Asset Value
per share of the Energy SPDR Fund is determined by the Energy SPDR Fund each
Business Day after the close of trading on the New York Stock Exchange,
ordinarily 4:00 p.m., New York time. Shares of the Energy SPDR Fund are listed
on the AMEX under the trading symbol "XLE".

     The "Adjusted Ending Value" will be determined by the calculation agent
and will equal the Ending Value, as reduced by the application of the
Adjustment Factor on each Calculation Day.

     The "Ending Value" will equal the average, or the arithmetic mean, of the
Net Asset Values per share of the Energy SPDR Fund on each of the first five
Calculation Days during the Calculation Period. If there are fewer than five
Calculation Days in the Calculation Period, the Ending Value will equal the
average, or the arithmetic mean, of the Net Asset Values of the Energy SPDR
Fund on each of the Calculation Days, and if there is only one Calculation Day,
then the Ending Value will be equal to the Net Asset Value per share of the
Energy SPDR Fund on that Calculation Day. If no Calculation Days occur during
the Calculation Period because of Market Disruption Events, then the Ending
Value shall mean the Net Asset Value per share of the Energy SPDR Fund on the
last Trading Day prior to the Calculation Period for which a Net Asset Value
per share of the Energy SPDR Fund was determined.

     The Adjustment Factor equals 0.85% per year and will be prorated based on
a 365-day year and applied each calendar day to reduce the Ending Value used to
calculate the Supplemental Redemption Amount. As a result of the application of
the Adjustment Factor, the adjusted Net Asset Value of one share of the Energy
SPDR Fund used to calculate the Supplemental Redemption Amount at the maturity
of the MITTS Securities will be approximately 5.8% less than the actual Net
Asset Value per share of the Energy SPDR Fund on any day during the Calculation
Period.

     The "Calculation Period" means the period from and including the seventh
scheduled Calculation Day prior to the Maturity Date to and including the
second scheduled Calculation Day prior to maturity.

     "Calculation Day" means any Trading Day on which a Market Disruption Event
has not occurred.

     "Trading Day" is a day on which the shares of the Energy SPDR Fund:


     o    are not suspended from trading on any national or regional securities
          exchange or association or over-the-counter market at the close of
          business and

     o    have traded at least once on a national or regional securities
          exchange or association or over-the-counter market that is the
          primary market for the trading of the shares of the Energy SPDR Fund.

Fractional Shares

     ML&Co. will not deliver fractional shares of the Energy SPDR Fund at
maturity. In the event ML&Co. elects to pay holders of the MITTS Securities in
shares of the Energy SPDR Fund, all amounts due to any holder of the MITTS
Securities in respect of the total number of units held by that holder will be
aggregated, and in lieu of delivering any fractional share to that holder, that
holder will receive the cash value of the fractional share based on the Ending
Value.

Hypothetical Returns

     The following table illustrates, for a range of hypothetical Ending
Values,

     o    the Adjusted Ending Value used to calculate the Supplemental
          Redemption Amount,

     o    the percentage change from the Starting Value to the Adjusted Ending
          Value,

     o    the principal amount and Supplemental Redemption Amount, if any, paid
          at maturity for each unit,

     o    the total rate of return to beneficial owners of the MITTS
          Securities,

     o    the pretax annualized rate of return to beneficial owners of MITTS
          Securities, and

     o    the pretax annualized rate of return of an investment in shares of
          the Energy SPDR Fund. This table assumes an Adjustment Factor of
          0.85% per annum.

<TABLE>
<CAPTION>

Hypothetical                         Percentage       Principal Amount                           Pretax         Pretax Annualized
Ending Value                          Change of       and Supplemental                      Annualized Rate     Rate of Return of
 During the       Hypothetical     Adjusted Ending       Redemption        Total Rate of     of Return on         Shares of the
Calculation     Adjusted Ending    Value Over the      Amount Paid at      Return on the       the MITTS           Energy SPDR
  Period             Value         Starting Value     Maturity per Unit   MITTS Securities    Securities(1)         Fund(1)(2)
- -----------    ----------------    --------------     -----------------   ----------------    -------------     ----------------
                                                                                                                 
<S>                    <C>             <C>                 <C>                 <C>               <C>                  <C>   
    4.50               4.24           -81.16%              $ 10.00             0.00%             0.00%               -18.69%
    9.00               8.48           -62.32%              $ 10.00             0.00%             0.00%                -9.93%
   13.50              12.71           -43.48%              $ 10.00             0.00%             0.00%                -4.50%
   17.99              16.95           -24.64%              $ 10.00             0.00%             0.00%                -0.51%
22.49(3)              21.19            -5.80%              $ 10.00             0.00%             0.00%                 2.67%
   26.99              25.43            13.04%              $ 11.30            13.04%             1.75%                 5.32%
   31.49              29.66            31.88%              $ 13.19            31.88%             3.97%                 7.60%
   35.99              33.90            50.72%              $ 15.07            50.72%             5.92%                 9.60%
   40.49              38.14            69.55%              $ 16.96            69.55%             7.65%                11.40%
   44.99              42.38            88.39%              $ 18.84            88.39%             9.21%                13.02%
   49.49              46.61           107.23%              $ 20.72           107.23%            10.63%                14.50%
   53.98              50.85           126.07%              $ 22.61           126.07%            11.94%                15.87%
   58.48              55.09           144.91%              $ 24.49           144.91%            13.15%                17.14%
   62.98              59.33           163.75%              $ 26.38           163.75%            14.28%                18.32%
   67.48              63.56           182.59%              $ 28.26           182.59%            15.33%                19.43%
</TABLE>

- ----------------------------                                 

(1)  The annualized rates of return specified in the preceding table are
     calculated on a semiannual bond equivalent basis.
(2)  This rate of return assumes,
     (a)  a constant dividend yield of 2.67% per annum, paid quarterly from the
          date of the initial delivery of the MITTS Securities, applied to the
          Net Asset Value per share of the Energy SPDR Fund at the end of each
          quarter, assuming the Net Asset Value per share of the Energy SPDR
          Fund increases or decreases linearly from the Starting Value to the
          hypothetical Ending Value during the Calculation Period;
     (b)  no transaction fees or expenses in connection with the purchase of
          the MITTS Securities;
     (c)  a term from February 11, 1999 to February 21, 2006; and
     (d)  a Net Asset Value per share of the Energy SPDR Fund on the maturity
          date equal to the Ending Value. 
(3)  The Starting Value equals 22.4936, the Net Asset Value per share of the
     Energy SPDR Fund on the Pricing Date.

     The figures on the previous page are for purposes of illustration only.
The actual Supplemental Redemption Amount and the total and pretax annualized
rate of return resulting therefrom will depend entirely on actual Adjusted
Ending Value determined by the calculation agent as provided in this
prospectus.

Adjustments to the Net Asset Value; Market Disruption Events

     If at any time the shares of the Energy SPDR Fund are subject to a split
or reverse split, the calculation agent shall adjust the Net Asset Value per
share of the Energy SPDR Fund used to calculate the Ending Value in order to
arrive at a Net Asset Value per share of the Energy SPDR Fund as if the split
or reverse split, as the case may be, had not occurred.

     "Market Disruption Event" means any of the following events, as determined
by the calculation agent:

     "Market Disruption Event" means either of the following events; as
determined by the calculation agent:

     (a)  the suspension or material limitation on trading for more than two
          hours of trading, or during the one-half hour period preceding the
          close of trading on the applicable exchange, in each case, in 20% or
          more of the stocks which then comprise the Index; or

     (b)  the suspension or material limitation, in each case, for more than
          two hours of trading, whether by reason of movements in price
          otherwise exceeding levels permitted by the relevant exchange or
          otherwise,

          (A)   futures contracts related to the Index, or options
                on these futures contracts, which are traded on any
                major U.S. exchange or

          (B)   option contracts related to the Index which are traded on
                any major U.S. exchange. or

     (c)  the Energy SPDR Fund (1) is unable or otherwise fails to issue a Net
          Asset Value for any shares of the Energy SPDR Fund after the close of
          business on the NYSE or (2) suspends the creation or redemption of
          shares of the Energy SPDR Fund.

     For the purposes of paragraphs (a) and (b) of this definition, a
limitation on the hours in a trading day and/or number of days of trading will
not constitute a Market Disruption Event if it results from an announced change
in the regular business hours of the relevant exchange.


     For the purposes of clause (a) above, any limitations on trading during
significant market fluctuations under New York Stock Exchange Rule 80A, or any
applicable rule or regulation enacted or promulgated by the NYSE or any other
self regulatory organization or the SEC of similar scope as determined by the
calculation agent, will be considered "material".

Termination of the Energy SPDR Fund

     If the Energy SPDR Fund is liquidated or otherwise terminated, for
purposes of calculating the Supplemental Redemption Amount payable at the
maturity of the MITTS Securities, the "Net Asset Value" will be calculated by
the calculation agent as follows: The Net Asset Value per share of the Energy
SPDR Fund on the Trading Day occurring immediately before any liquidating
distribution will equal the Net Asset Value for that day (the "Pre-liquidation
Date"). The calculation agent will then calculate the Net Asset Value after the
close of trading on each Trading Day, each applicable date defined as a
"Determination Date", after the Pre-liquidation Date by increasing or
decreasing, as the case may be, the Net Asset Value as of the immediately
preceding Trading Day by the percentage by which the closing value of the
Energy Select Sector Index increases or decreases from that immediately
preceding Trading Day to the Determination Date and further decreasing the Net
Asset Value by fees, expenses and non-liquidating distributions, together,
"Fund Expenses", that the calculation agent, in its sole judgment but with
reference to the Fund Expenses actually incurred by the Energy SPDR Fund before
its liquidation or termination, deems would reasonably have been accrued and
included in the calculation of the Net Asset Value per share of the Energy SPDR
Fund had it not been liquidated or terminated, from the immediately preceding
Trading Day to the Determination Date. The calculation agent will cause notice
of each value to be published not less often than once each month in The Wall
Street Journal, or another newspaper of general circulation, and arrange for
information with respect to the values to be made available by telephone.

     If the Energy SPDR Fund is liquidated or otherwise terminated and the
Energy Select Sector Index is no longer calculated or published, an "Index
Termination Event", the calculation agent will select a successor index that it
determines, in its sole discretion, to be comparable to the Energy Select
Sector Index, and, upon the calculation agent's notification of its
determination to the Trustee and ML&Co., the calculation agent will substitute
the successor index for the Energy Select Sector Index and calculate the Net
Asset Value in accordance with the procedures referred to in the immediately
preceding paragraph with reference to the successor index. Upon any selection
by the calculation agent of a successor index, ML&Co. shall cause notice
thereof to be given to holders of the MITTS Securities.

     In the event that an Index Termination Event occurs and a successor index
to the Energy Select Sector Index is not selected by the calculation agent or
is no longer published on any of the Calculation Days, the calculation agent
shall compute a substitute index for the Energy Select Sector Index for any
Calculation Day in accordance with the procedures last used to calculate the
Energy Select Sector Index prior to any discontinuance. The calculation agent
will calculate the Net Asset Value in accordance with the procedures referred
to in the first paragraph of this section with reference to the substitute
index. Upon any selection by the calculation agent of the substitute index,
ML&Co. shall cause notice thereof to be given to holders of the MITTS
Securities.

     If S&P discontinues publication of the S&P 500 Index subsequent to an
Index Termination Event and

     o    a successor index to the Energy Select Sector Index is not selected
          by the calculation agent or is no longer published on any of the
          Calculation Days and

     o    the calculation agent is unable to calculate a substitute index for
          the Energy Select Sector Index, then

the calculation agent will compute a substitute index for the S&P 500 Index for
any Calculation Day in accordance with the procedures last used to calculate
the S&P 500 Index prior to any discontinuance. If the calculation agent
calculates the substitute index for the S&P 500 Index, the calculation agent
will use the substitute index to calculate the substitute index for the Energy
Select Sector Index.

     Notwithstanding these alternative arrangements, liquidation or termination
of the Energy SPDR Fund or the discontinuance of the publication of the Energy
Select Sector Index or the S&P 500 Index may adversely affect trading in the
MITTS Securities.

Events of Default and Acceleration

     In case an Event of Default with respect to any MITTS Securities has
occurred and is continuing, the amount payable to a beneficial owner of a MITTS
Security upon any acceleration permitted by the MITTS Securities, with respect
to each $10 principal amount thereof, will be equal to the Principal Amount and
the Supplemental Redemption Amount, if any, calculated assuming:

     o    the date of early repayment is the maturity date of the MITTS
          Securities and

     o    the Adjustment Factor is prorated based on a 365-day year and applied
          each calendar day to reduce the Net Asset Value per share of the
          Energy SPDR Fund used to calculate the Supplemental Redemption
          Amount. See "Delivery at Maturity" in this prospectus.

If a bankruptcy proceeding is commenced in respect of ML&Co., the claim of the
beneficial owner of a MITTS Security may be limited, under Section 502(b)(2) of
Title 11 of the United States Code, to the Principal Amount of the MITTS
Security plus an additional amount of contingent interest calculated as though
the date of the commencement of the proceeding were the maturity date of the
MITTS Securities.

     In case of default in payment at the maturity date of the MITTS
Securities, whether at their stated maturity or upon acceleration, from and
after the maturity date the MITTS Securities shall bear interest, payable upon
demand of the beneficial owners thereof, at the rate of 5.83% per annum, to the
extent that payment of any interest shall be legally enforceable, on the unpaid
amount due and payable on that date in accordance with the terms of the MITTS
Securities to the date payment of any amount has been made or duly provided
for.

Global Securities

     Description of the Global Securities

     Beneficial owners of the MITTS Securities may not receive physical
delivery of the MITTS Securities nor may they be entitled to have the MITTS
Securities registered in their names. The MITTS Securities currently are
represented by one or more fully registered global securities. Each global
security was deposited with, or on behalf of, The Depository Trust Company or
DTC, DTC, together with any successor thereto, being (a "depositary"), as
depositary, registered in the name of Cede & Co., DTC's partnership nominee.
Unless and until it is exchanged in whole or in part for MITTS Securities in
definitive form, no global security may be transferred except as a whole by the
depositary to a nominee of the depositary or by a nominee of the depositary to
the depositary or another nominee of the depositary or by the depositary or any
nominee to a successor of the depositary or a nominee of that successor.

     So long as DTC, or its nominee, is a registered owner of a global
security, DTC or its nominee, as the case may be, will be considered the sole
owner or holder of the MITTS Securities represented by a global security for
all purposes under the 1983 Indenture. Except as provided below, the beneficial
owners of the MITTS Securities represented by a global security will not be
entitled to have the MITTS Securities represented by the global security
registered in their names, will not receive or be entitled to receive physical
delivery of the MITTS Securities in definitive form and will not be considered
the owners or holders under the 1983 Indenture, including for purposes of
receiving any reports delivered by ML&Co. or the trustee under the 1983
Indenture. Accordingly, each person owning a beneficial interest in a global
security must rely on the procedures of DTC and, if that person is not a
participant of DTC on the procedures of the participant through which that
person owns its interest, to exercise any rights of a holder under the 1983
Indenture. ML&Co. understands that under existing industry practices, in the
event that ML&Co. requests any action of holders or that an owner of a
beneficial interest in a global security desires to give or take any action
which a holder is entitled to give or take under the 1983 Indenture, DTC would
authorize the participants holding the relevant beneficial interests to give or
take any action, and the participants would authorize beneficial owners owning
through those participants to give or take action or would otherwise act upon
the instructions of beneficial owners. Conveyance of notices and other
communications by DTC to participants, by participants to indirect participants
and by participants and indirect participants to beneficial owners will be
governed by arrangements among them, subject to any statutory or regulatory
requirements as may be in effect from time to time.

     DTC Procedures

     The following is based on information furnished by DTC:

     DTC is the securities depositary for the MITTS Securities. The MITTS
Securities were issued as fully registered securities registered in the name of
Cede & Co., DTC's partnership nominee. One or more fully registered global
securities were issued for the MITTS Securities in the aggregate principal
amount of the MITTS Securities, and were deposited with DTC.

     DTC is a limited-purpose trust company organized under the New York
Banking Law, a "banking organization" within the meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing corporation"
within the meaning of the New York Uniform Commercial Code, and a "clearing
agency" registered under to the provisions of Section 17A of the Securities and
Exchange Act of 1934, as amended. DTC holds securities that its participants
deposit with DTC. DTC also facilitates the settlement among participants of
securities transactions, such as transfers and pledges, in deposited securities
through electronic computerized book-entry changes in participants' accounts,
thereby eliminating the need for physical movement of securities certificates.
Direct participants of DTC include securities brokers and dealers, banks, trust
companies, clearing corporations and other organizations. DTC is owned by a
number of its direct participants and by the NYSE, the AMEX and the National
Association of Securities Dealers, Inc. Access to the DTC's system is also
available to others such as securities brokers and dealers, banks and trust
companies that clear through or maintain a custodial relationship with a direct
participant, either directly or indirectly. The rules applicable to DTC and its
participants are on file with the SEC.

     Purchases of MITTS Securities under DTC's system must be made by or
through direct participants, which will receive a credit for the MITTS
Securities on DTC's records. The ownership interest of each beneficial owner is
in turn to be recorded on the records of direct and indirect participants.
Beneficial owners will not receive written confirmation from DTC of their
purchase, but beneficial owners are expected to receive written confirmations
providing details of the transaction, as well as periodic statements of their
holdings, from the direct participants or indirect participants through which
the beneficial owner entered into the transaction. Transfers of ownership
interests in the MITTS Securities will be accomplished by entries made on the
books of participants acting on behalf of beneficial owners.

     To facilitate subsequent transfers, all MITTS Securities deposited with
DTC are registered in the name of DTC's partnership nominee, Cede & Co. The
deposit of MITTS Securities with DTC and their registration in the name of Cede
& Co. effect no change in beneficial ownership. DTC has no knowledge of the
actual beneficial owners of the MITTS Securities; DTC's records reflect only
the identity of the direct participants to whose accounts the MITTS Securities
are credited, which may or may not be the beneficial owners. The participants
will remain responsible for keeping account of their holdings on behalf of
their customers.

     Conveyance of notices and other communications by DTC to direct
participants, by direct participants to indirect participants, and by direct
and indirect participants to beneficial owners will be governed by arrangements
among them, subject to any statutory or regulatory requirements as may be in
effect from time to time.

     Neither DTC nor Cede & Co. will consent or vote with respect to the MITTS
Securities. Under its usual procedures, DTC mails an omnibus proxy to ML&Co. as
soon as possible after the applicable record date. The omnibus proxy assigns
Cede & Co.'s consenting or voting rights to those direct participants
identified in a listing attached to the omnibus proxy to whose accounts the
MITTS Securities are credited on the record date identified in a listing
attached to the omnibus proxy.

     Principal, premium, if any, and/or interest, if any, payments on the MITTS
Securities will be made in immediately available funds to DTC. DTC's practice
is to credit direct participants' accounts on the applicable payment date in
accordance with their respective holdings shown on the depositary's records
unless DTC has reason to believe that it will not receive payment on that date.
Payments by participants to beneficial owners will be governed by standing
instructions and customary practices, as is the case with securities held for
the accounts of customers in bearer form or registered in "street name", and
will be the responsibility of the participant and not of DTC, the trustee or
ML&Co., subject to any statutory or regulatory requirements as may be in effect
from time to time. Payment of principal, premium, if any, and/or interest, if
any, to DTC is the responsibility of ML&Co. or the trustee, disbursement of
payments to direct participants is the responsibility of DTC, and disbursement
of payments to the beneficial owners is the responsibility of direct and
indirect participants.

     Exchange for Certificated Securities

     If:

     o    the depositary is at any time unwilling or unable to continue as
          depositary and a successor depositary is not appointed by ML&Co.
          within 60 days,

     o    ML&Co. executes and delivers to the trustee a company order to the
          effect that the global securities shall be exchangeable, or

     o    an Event of Default under the 1983 Indenture has occurred and is
          continuing with respect to the MITTS Securities,

the global securities will be exchangeable for MITTS Securities in definitive
form of like tenor and of an equal aggregate principal amount, in denominations
of $10 and integral multiples of $10. The definitive MITTS Securities will be
registered in the name or names as the depositary shall instruct the trustee.
It is expected that instructions may be based upon directions received by the
depositary from participants with respect to ownership of beneficial interests
in the global securities.

     In addition, ML&Co. may decide to discontinue use of the system of
book-entry transfers through the depositary. In that event, MITTS Securities in
definitive form will be printed and delivered.

     The information in this section concerning DTC and DTC's system has been
obtained from sources that ML&Co. believes to be reliable, but ML&Co. takes no
responsibility for its accuracy.

Same-Day Settlement and Delivery

     All payments of principal and the Supplemental Redemption Amount, if any,
will be made by ML&Co., by delivery of shares of the Energy SPDR Fund in an
equivalent value. In the event ML&Co. elects, at its option, to pay cash in
lieu of delivering shares of the Energy SPDR Fund, ML&Co. will make that
payment in immediately available funds so long as the MITTS Securities are
maintained in book-entry form.


<PAGE>


                              THE ENERGY SPDR FUND

     ML&Co. has attached the Fund Prospectus describing the Energy SPDR Fund
and is delivering it to purchasers of the MITTS Securities together with this
prospectus for the convenience of reference only. The Fund Prospectus does not
constitute a part of this prospectus, nor is it incorporated by reference in
this prospectus. The summary description below is qualified in its entirety by
the information describing the Energy SPDR Fund and the Energy Select Sector
Index included in the attached Fund Prospectus.

     As stated in the Fund Prospectus, the Energy SPDR Fund is an index fund
whose investment objective is to provide investment results that, before
expenses, correspond generally to the price and yield performance of the
publicly traded equity securities included in the Energy Select Sector Index.
The Energy Select Sector Index consists of the equity securities of publicly
traded companies that are components of the S&P 500 Index and are involved in
the development and production of energy products. Companies in the Energy
Select Sector Index develop and produce crude oil and natural gas, and provide
drilling and other energy related services. As of February 11, 1999, the Energy
Select Sector Index included 31 component stocks.

     Although ML&Co.'s subsidiary, MLPF&S, provides services to the Energy SPDR
Fund and the Energy Select Sector Index, ML&Co. is not affiliated with the
Energy SPDR Fund or the Energy Select Sector Index, and the Energy SPDR Fund
did not receive any of the proceeds from the sale of, or have any obligations
under, the MITTS Securities. A prospective purchaser of the MITTS Securities
should independently decide whether an investment in the MITTS Securities and
the Energy SPDR Fund is appropriate.

     The Energy SPDR Fund is one of nine investment funds comprising the Trust.
Each fund's investment portfolio is comprised principally of constituent
companies whose equity securities are components of the S&P 500 Index, each
representing one of nine specified market sector indices. Each stock in the S&P
500 Index is allocated to only one Select Sector Index. The combined companies
of the nine indices represent all of the companies whose stocks are components
of the S&P 500 Index. The Energy SPDR Fund's initial public offering occurred
on December 16, 1998 and therefore it has limited operating history.

     Because the Trust is subject to the registration requirements of the
Securities Act and the Investment Company Act, the Trust is required to file
periodically information specified by the SEC. For more information about the
Energy SPDR Fund and the shares that a holder of the MITTS Securities may
receive at maturity, information provided to or filed with the SEC by the Trust
can be inspected at the SEC's public reference facilities or accessed over the
Internet through a web site maintained by the SEC at http://www.sec.gov. Copies
of these documents may also be obtained at no cost by calling the Trust at
(800) 843-2639 or by writing the Trust c/o ALPS Mutual Funds Services, Inc., at
370 17th Street, Suite 3100, Denver, CO 80202. Neither the Fund Prospectus nor
these other documents are incorporated by reference in this prospectus
supplement, and ML&Co. makes no representation or warranty as to the accuracy
or completeness of any of these other documents.

     ML&Co. is not affiliated with the Energy SPDR Fund, and the Energy SPDR
Fund has no obligations with respect to the MITTS Securities. This prospectus
relates only to the MITTS Securities offered hereby and does not relate to the
shares of the Energy SPDR Fund or any other securities relating to the Energy
SPDR Fund. The information contained in this prospectus regarding the Energy
SPDR Fund has been derived from the publicly available documents described in
the preceding paragraph. ML&Co. makes no representation that these publicly
available documents or any other publicly available information regarding the
Energy SPDR Fund are accurate or complete. Furthermore, there can be no
assurance that all events occurring prior to the date of this prospectus,
including events that would affect the accuracy or completeness of the publicly
available documents described in the preceding paragraph, that would affect the
trading price of the shares of the Energy SPDR Fund, and therefore the trading
price of the MITTS Securities, have been publicly disclosed. Subsequent
disclosure of any material events or the disclosure of or failure to disclose
material future events concerning the Energy SPDR Fund could affect the
Supplemental Redemption Amount, if any, to be received at maturity and
therefore the trading value of the MITTS Securities.

     MLPF&S, a subsidiary of ML&Co., is a soliciting dealer in the shares of
the Energy SPDR Fund. Additionally, MLPF&S serves as Index Compilation Agent
for the Energy Select Sector Index. In its capacity as Index Compilation Agent,
MLPF&S determines, in consultation with S&P, the composition of the securities
measured by the Energy Select Sector Index.


License Agreement

     S&P, the AMEX and MLPF&S have entered into a non-exclusive license
agreement providing for the license to MLPF&S, in exchange for a fee, of the
right to use indices owned and published by S&P in connection with some
securities, including the MITTS Securities, and ML&Co. is an authorized
sublicensee of MLPF&S.

     The license agreement among S&P, the AMEX and MLPF&S provides that the
following language must be stated in this prospectus supplement:

     "Standard & Poor's(R)", "Standard & Poor's 500", "S&P 500(R)", "S&P(R)",
"500", "Standard & Poor's Depositary Receipts", "SPDRs", "Select Sector SPDR"
and "Select Sector Standard & Poor's Depositary Receipts" are trademarks of
Standard & Poor's, a division of The McGraw-Hill Companies, Inc., and have been
licensed for use by MLPF&S. ML&Co., is an authorized sublicensee of MLPF&S. The
stocks comprising the Energy Select Sector Index were selected by MLPF&S, as
Index Compilation Agent, in consultation with S&P from the universe of
companies represented by the S&P 500 Index. The composition and weightings of
the stocks included in the Energy Select Sector Index can be expected to differ
from the composition and weighting of stocks included in any similar S&P 500
sector index published and disseminated by S&P.

     The MITTS Securities, the Energy SPDR Fund and the Energy Select Sector
Index are not sponsored, endorsed, sold or promoted by S&P. S&P makes no
representation or warranty, express or implied, to the holders of the MITTS
Securities or any member of the public regarding the advisability of investing
in securities generally or in the MITTS Securities particularly or in the
ability of the Energy SPDR Fund to track the performance and yield of the
Energy Select Sector Index or in the ability of the Energy Select Sector Index
to track the performance of the energy sector represented in the stock market.
The stocks included in the Energy Select Sector Index were selected by MLPF&S
as the Index Compilation Agent in consultation with S&P from a universe of
companies involved in the development and production of energy products and
represented by the S&P 500 Index. The composition and weightings of the stocks
included in the Energy Select Sector Index can be expected to differ from the
composition and weighting of stocks included in any corresponding S&P 500
sector index that is published and disseminated by S&P. S&P's only relationship
to the Index Compilation Agent is the licensing of some trademarks and trade
names of S&P and of the S&P 500 Index which is determined, composed and
calculated by S&P without regard to the index compilation agent or the MITTS
Securities. S&P has no obligation to take the needs of the Index Compilation
Agent, ML&Co. or the holders of the MITTS Securities into consideration in
determining, composing or calculating the S&P 500 Index. S&P is not responsible
for and has not participated in any determination of the timing of the sale of
the MITTS Securities, prices at which the MITTS Securities are initially to be
sold, or quantities of the MITTS Securities to be issued or in the
determination or calculation of the equation by which ML&Co. will convert the
MITTS Securities ML&Co. into shares of the Energy SPDR Fund or cash. S&P has no
obligation or liability in connection with the administration, marketing or
trading of the MITTS Securities.

     S&P does not guarantee the accuracy and/or the completeness of the S&P 500
Index, the Energy Select Sector Index or any data included therein. S&P makes
no warranty, express or implied, as to results to be obtained by ML&Co.,
MLPF&S, the holders of the MITTS Securities, or any other person or entity from
the use of the S&P 500 Index, the Energy Select Sector Index or any data
included therein in connection with the rights licensed under the license
agreement described herein or for any other use. S&P makes no express or
implied warranties, and expressly disclaims all warranties of merchantability
or fitness for a particular purpose with respect to the S&P 500 Index, the
Energy Select Sector Index or any data included therein. Without limiting the
generality of the foregoing, in no event shall S&P have any liability for any
special, punitive, indirect or consequential damages (including lost profits),
even if notified of the possibility of these damages."

     All disclosures contained in this prospectus supplement regarding the S&P
500 Index or the Energy Select Sector Index, including its respective make-up,
method of calculation and changes in its components, are derived from publicly
available information prepared by S&P and the Trust, respectively. ML&Co. and
MLPF&S do not assume any responsibility for the accuracy or completeness of
this information.


                                  OTHER TERMS

     ML&Co. issued the MITTS Securities as a series of senior debt securities
under the 1983 Indenture, dated as of April 1, 1983, as amended and restated,
between ML&Co. and The Chase Manhattan Bank, as trustee. A copy of the 1983
Indenture is filed as an exhibit to the registration statement relating to the
MITTS Securities of which this prospectus is a part. The following summaries of
the material provisions of the 1983 Indenture are not complete and are subject
to, and qualified in their entirety by reference to, all provisions of the 1983
Indenture, including the definitions of terms in the 1983 Indenture.

     ML&Co. may issue series of senior debt securities from time to time under
the 1983 Indenture, without limitation as to aggregate principal amount, in one
or more series and upon terms as ML&Co. may establish under the provisions of
the 1983 Indenture.

     The 1983 Indenture and the MITTS Securities are governed by and construed
in accordance with the laws of the State of New York.

     ML&Co. may issue senior debt securities with terms different from those of
senior debt securities previously issued, and issue additional senior debt
securities of a previously issued series of senior debt securities.

     The senior debt securities are unsecured and rank equally with all other
unsecured and unsubordinated indebtedness of ML&Co. However, because ML&Co. is
a holding company, the rights of ML&Co. and its creditors, including the
holders of senior debt securities, to participate in any distribution of the
assets of any subsidiary upon its liquidation or reorganization or otherwise
are necessarily subject to the prior claims of creditors of the subsidiary,
except to the extent that a bankruptcy court may recognize claims of ML&Co.
itself as a creditor of the subsidiary. In addition, dividends, loans and
advances from certain subsidiaries, including MLPF&S, to ML&Co. are restricted
by net capital requirements under the Exchange Act, and under rules of
exchanges and other regulatory bodies.

Limitations Upon Liens

     ML&Co. may not, and may not permit any majority-owned subsidiary to,
create, assume, incur or permit to exist any indebtedness for borrowed money
secured by a pledge, lien or other encumbrance, other than those liens
specifically permitted by the 1983 Indenture, on the Voting Stock owned
directly or indirectly by ML&Co. of any majority-owned subsidiary, other than a
majority-owned subsidiary which, at the time of the incurrence of the secured
indebtedness, has a net worth of less than $3,000,000, unless the outstanding
senior debt securities are secured equally and ratably with the secured
indebtedness.

     "Voting Stock" is defined in the 1983 Indenture as the stock of the class
or classes having general voting power under ordinary circumstances to elect at
least a majority of the board of directors, managers or trustees of a
corporation provided that, for the purposes of the 1983 Indenture, stock that
carries only the right to vote conditionally on the occurrence of an event is
not considered voting stock whether or not the event has happened.

Limitation on Disposition of Voting Stock of, and Merger and Sale of
Assets by, MLPF&S

     ML&Co. may not sell, transfer or otherwise dispose of any Voting Stock of
MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of its
Voting Stock, unless, after giving effect to any transaction, MLPF&S remains a
Controlled Subsidiary.

     "Controlled Subsidiary" is defined in the 1983 Indenture to mean a
corporation more than 80% of the outstanding shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

     In addition, ML&Co. may not permit MLPF&S to:

     o    merge or consolidate, unless the surviving company is a Controlled
          Subsidiary, or

     o    convey or transfer its properties and assets substantially as an
          entirety, except to one or more Controlled Subsidiaries.

Merger and Consolidation

     ML&Co. may consolidate or merge with or into any other corporation and
ML&Co. may sell, lease or convey all or substantially all of its assets to any
corporation, provided that:

     o    the resulting corporation, if other than ML&Co., is a corporation
          organized and existing under the laws of the United States of America
          or any U.S. state and assumes all of ML&Co.'s obligations to:

          o    pay any amounts due and payable or deliverable with respect to 
               all the senior debt securities; and

          o    perform and observe all of ML&Co.'s obligations under the 1983
               Indenture, and

     o    ML&Co. or the successor corporation, as the case may be, is not,
          immediately after any consolidation or merger, in default under the
          1983 Indenture.

Modification and Waiver

     ML&Co. and the trustee may modify and amend the 1983 Indenture with the
consent of holders of at least 66 2/3% in principal amount of each outstanding
series of senior debt securities affected. However, without the consent of each
holder of any outstanding senior debt security affected, no amendment or
modification to the 1983 Indenture may:

     o    change the stated maturity date of the principal of, or any
          installment of interest or Additional Amounts payable on, any senior
          debt security or any premium payable on redemption, or change the
          redemption price;

     o    reduce the principal amount of, or the interest or Additional Amounts
          payable on, any senior debt security or reduce the amount of
          principal which could be declared due and payable before the stated
          maturity date;

     o    change the place or currency of any payment of principal or any
          premium, interest or Additional Amounts payable on any senior debt
          security;

     o    impair the right to institute suit for the enforcement of any payment
          on or with respect to any senior debt security;

     o    reduce the percentage in principal amount of the outstanding senior
          debt securities of any series, the consent of whose holders is
          required to modify or amend the 1983 Indenture; or

     o    modify the foregoing requirements or reduce the percentage of
          outstanding senior debt securities necessary to waive any past
          default to less than a majority.

     No modification or amendment of ML&Co.'s Subordinated Indenture or any
Subsequent Indenture for subordinated debt securities may adversely affect the
rights of any holder of ML&Co.'s senior indebtedness without the consent of
each holder affected. The holders of at least a majority in principal amount of
outstanding senior debt securities of any series may, with respect to that
series, waive past defaults under the 1983 Indenture and waive compliance by
ML&Co. with provisions in the 1983 Indenture, except as described under
"--Events of Default".

Events of Default

     Each of the following will be Events of Default with respect to senior
debt securities of any series:

     o    default in the payment of any interest or Additional Amounts payable
          when due and continuing for 30 days;

     o    default in the payment of any principal or premium when due;

     o    default in the deposit of any sinking fund payment, when due;

     o    default in the performance of any other obligation of ML&Co.
          contained in the 1983 Indenture for the benefit of that series or in
          the senior debt securities of that series, continuing for 60 days
          after written notice as provided in the 1983 Indenture;

     o    specified events in bankruptcy, insolvency or reorganization of
          ML&Co.; and

     o    any other Event of Default provided with respect to senior debt
          securities of that series which are not inconsistent with the 1983
          Indenture.

If an Event of Default occurs and is continuing for any series of senior debt
securities, other than as a result of the bankruptcy, insolvency or
reorganization of ML&Co., the Trustee or the holders of at least 25% in
principal amount of the outstanding senior debt securities of that series may
declare all amounts, or any lesser amount provided for in the senior debt
securities, due and payable or deliverable immediately. At any time after a
declaration of acceleration has been made with respect to senior debt
securities of any series but before the Trustee has obtained a judgment or
decree for payment of money, the holders of a majority in principal amount of
the outstanding senior debt securities of that series may rescind any
declaration of acceleration and its consequences, if all payments due, other
than those due as a result of acceleration, have been made and all Events of
Default have been remedied or waived.

     The holders of a majority in principal amount or aggregate issue price of
the outstanding senior debt securities of that series may waive any Event of
Default with respect to that series, except a default:

     o    in the payment of any amounts due and payable or deliverable under
          the debt securities of that series; or

     o    in respect of an obligation or provision of the 1983 Indenture which
          cannot be modified under the terms of that Indenture without the
          consent of each holder of each outstanding security of each series of
          senior debt securities affected.

     The holders of a majority in principal amount of the outstanding senior
debt securities of a series may direct the time, method and place of conducting
any proceeding for any remedy available to the trustee or exercising any trust
or power conferred on the trustee with respect to those senior debt securities,
provided that any direction shall not be in conflict with any rule of law or
the 1983 Indenture. Before proceeding to exercise any right or power under the
1983 Indenture at the direction of the holders, the trustee shall be entitled
to receive from the holders reasonable security or indemnification against the
costs, expenses and liabilities which might be incurred by it in complying with
any direction.

     The MITTS Securities and other series of senior debt securities issued
under the 1983 Indenture do not have the benefit of any cross-default
provisions with other indebtedness of ML&Co.

     ML&Co. is required to furnish to the trustee annually a statement as to
the fulfillment by ML&Co. of all of its obligations under the 1983 Indenture.


                           PROJECTED PAYMENT SCHEDULE

     Solely for purposes of applying the final Treasury Department Regulations
(the "Final Regulations") concerning the United States Federal income tax
treatment of contingent payment debt instruments to the MITTS Securities,
ML&Co. has determined that the projected payment schedule for the MITTS
Securities will consist of payment on the maturity date of the principal amount
and a projected Supplemental Redemption Amount equal to $4.9556 per Unit (the
"Projected Supplemental Redemption Amount"). This represents an estimated yield
on the MITTS Securities equal to 5.83% per annum, compounded semiannually.

     The projected payment schedule, including both the Projected Supplemental
Redemption Amount and the estimated yield on the MITTS Securities, has been
determined solely for United States Federal income tax purposes, i.e., for
purposes of applying the Final Regulations to the MITTS Securities, and is
neither a prediction nor a guarantee of what the actual Supplemental Redemption
Amount will be, or that the actual Supplemental Redemption Amount will even
exceed zero.

     The following table sets forth the amount of interest that will be deemed
to have accrued with respect to each unit of the MITTS Securities during each
accrual period over an assumed term of approximately seven years for the MITTS
Securities based upon a projected payment schedule for the MITTS Securities,
including both the Projected Supplemental Redemption Amount and the estimated
yield equal to 5.83% per annum (compounded semiannually, as determined by
ML&Co. for purposes of illustrating the application of the Final Regulations to
the MITTS Securities:

<TABLE>
<CAPTION>

                                                                         
                                                                         
                                                                                                      Total Interest Deemed
                                                                      Interest Deemed to Accrue        to Have Accrued on
                                                                       During Accrual Period             MITTS Securities 
                                                                             (per Unit)                as of End of Accrual
            Accrual Period                              I                                                Period (per Unit)
            --------------                              -              -----------------                 -----------------

<S>                                                                           <C>                            <C>     
February 18, 1999 through August 21, 1999.........................            $ 0.2939                       $ 0.2939
August 22, 1999 through February 21, 2000.........................            $ 0.3001                       $ 0.5940
February 22, 2000 through August 21, 2000.........................            $ 0.3088                       $ 0.9028
August 22, 2000 through February 21, 2001.........................            $ 0.3178                       $ 1.2206
February 22, 2001 through August 21, 2001.........................            $ 0.3271                       $ 1.5477
August 22, 2001 through February 21, 2002.........................            $ 0.3366                       $ 1.8843
February 22, 2002 through August 21, 2002.........................            $ 0.3465                       $ 2.2308
August 22, 2002 through February 21, 2003.........................            $ 0.3565                       $ 2.5873
February 22, 2003 through August 21, 2003.........................            $ 0.3669                       $ 2.9542
August 22, 2003 through February 21, 2004.........................            $ 0.3776                       $ 3.3318
February 22, 2004 through August 21, 2004.........................            $ 0.3886                       $ 3.7204
August 22, 2004 through February 21, 2005.........................            $ 0.4000                       $ 4.1204
February 22, 2005 through August 21, 2005.........................            $ 0.4116                       $ 4.5320
August 22, 2005 through February 21, 2006.........................            $ 0.4236                       $ 4.9556
                                                                                                       
</TABLE>

- -------------
Projected Supplemental Redemption Amount=$4.9556 per unit.


     All prospective investors in the Securities should consult their own tax
advisors concerning the application of the Final Regulations to their
investment in the MITTS Securities. Investors in the MITTS Securities may also
obtain the projected payment schedule, as determined by ML&Co. for purposes of
the application of the Final Regulations to the MITTS Securities, by submitting
a written request to Merrill Lynch & Co., Inc., Attn: Darryl W. Colletti,
Corporate Secretary's Office, 100 Church Street, 12th Floor, New York, New York
10080-6512.


                      WHERE YOU CAN FIND MORE INFORMATION

ML&Co.

     We file reports, proxy statements and other information with the SEC. Our
SEC filings are also available over the Internet at the SEC's web site at
http://www.sec.gov. You may also read and copy any document we file by visiting
the SEC's public reference rooms in Washington, D.C., New York, New York, and
Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further
information about the public reference rooms. You may also inspect our SEC
reports and other information at the New York Stock Exchange, Inc., 20 Broad
Street, New York, New York 10005.

     We have filed a registration statement on Form S-3 with the SEC covering
the MITTS Securities and other securities. For further information on ML&Co.
and the MITTS Securities, you should refer to our registration statement and
its exhibits. This prospectus summarizes material provisions of contracts and
other documents that we refer you to. Because the prospectus may not contain
all the information that you may find important, you should review the full
text of these documents. We have included copies of these documents as exhibits
to our registration statement of which this prospectus is a part.

The Energy SPDR Fund

     The Trust is subject to the registration requirements of the Securities
Act and the Investment Company Act and is required to file periodically
information specified by the SEC. For more information about the Energy SPDR
Fund and the shares that you may receive at maturity, information provided to
or filed with the SEC by the Trust can be inspected at the SEC's public
reference facilities or accessed over the Internet through its web site. You
may also obtain copies of these documents at no cost by calling the Trust at
(800) 843-2639 or by writing the Trust c/o ALPS Mutual Funds Services, Inc., at
370 17th Street, Suite 3100, Denver, CO 80202. Neither the Fund Prospectus nor
these other documents are incorporated by reference in this prospectus, and we
make no representation or warranty as to the accuracy or completeness of this
information.


               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

     The SEC allows us to incorporate by reference the information we file with
them, which means:

     o    incorporated documents are considered part of the prospectus;

     o    we can disclose important information to you by referring you to
          those documents; and

     o    information that we file with the SEC will automatically update and
          supersede this incorporated information.

     We incorporate by reference the documents listed below which were filed
with the SEC under the Exchange Act:

     o    annual report on Form 10-K for the year ended December 25, 1998; and

     o    current reports on Form 8-K dated December 28, 1998, January 19,
          1999, February 17, 1999, February 18 1999, February 22, 1999,
          February 23, 1999 and March 26, 1999.

     We also incorporate by reference each of the following  documents that we
will file with the SEC after the date of this  prospectus  until this offering
is  completed  or after the date of this initial  registration  statement  and
before the effectiveness of the registration statement:

     o    reports filed under Sections 13(a) and (c) of the Exchange Act;

     o    definitive proxy or information statements filed under Section 14 of
          the Exchange Act in connection with any subsequent stockholders'
          meeting; and

     o    any reports filed under Section 15(d) of the Exchange Act.

     You should rely only on information contained or incorporated by reference
in this prospectus. We have not, and MLPF&S has not, authorized any other
person to provide you with different information. If anyone provides you with
different or inconsistent information, you should not rely on it. We are not,
and MLPF&S is not, making an offer to sell these securities in any jurisdiction
where the offer or sale is not permitted.

     You should assume that the information appearing in this prospectus is
accurate as of the date of this prospectus only. Our business, financial
condition and results of operations may have changed since that date.

     You may request a copy of any filings referred to above (excluding
exhibits), at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan, Jr., Corporate Secretary's Office, Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.

<PAGE>


                              PLAN OF DISTRIBUTION

     This prospectus has been prepared in connection with secondary sales of
the MITTS Securities and is to be used by MLPF&S when making offers and sales
related to market-making transactions in the MITTS Securities.

     MLPF&S may act as principal or agent in these market-making transactions.

     The MITTS Securities may be offered on the AMEX or off the exchange in
negotiated transactions or otherwise.

     The distribution of the MITTS Securities will conform to the requirements
set forth in the applicable sections of Rule 2720 of the Conduct Rules of the
NASD.


                                    EXPERTS

     The consolidated financial statements and the related financial statement
schedule incorporated in this prospectus by reference from the Annual Report on
Form 10-K of Merrill Lynch & Co., Inc. and subsidiaries have been audited by
Deloitte & Touche LLP, independent auditors, as stated in their reports (which
express an unqualified opinion and which report on the consolidated financial
statements includes an explanatory paragraph for the change in accounting method
for certain internal-use software development costs), which are incorporated
herein by reference, and have been so incorporated in reliance upon the reports
of such firm given upon their authority as experts in accounting and auditing.

<PAGE>
                             Subject to Completion
                  Preliminary Prospectus dated March 29, 1999


PROSPECTUS                                                               [LOGO]


                           Merrill Lynch & Co., Inc.
               S&P 500(R) Market Index Target-Term Securities(R)
                              due March 27, 2006
                             "MITTS(R) Securities"
                         $10 principal amount per unit


         This prospectus is to be used by Merrill Lynch & Co.,  Merrill Lynch,
Pierce, Fenner & Smith Incorporated,  our wholly-owned subsidiary, when making
offers  and  sales  related  to   market-making   transactions  in  the  MITTS
Securities.

<TABLE>
<CAPTION>

<S>                                     <C>
                                         
The MITTS Securities:                    Payment at Maturity:                  
o   100% principal protection at         o   On the maturity date, for each    
    maturity                                 unit of the MITTS Securities you  
o   No payments before the maturity          own, we will pay you an amount of 
    date                                     each unit and an additional       
o   Senior unsecured debt securities         amount based on the percentage    
    of Merrill Lynch & Co., Inc.             increase, if any, in the value of 
o   Linked to the value of the S&P           the S&P 500 Index adjusted by an  
    500 Index                                adjustment factor as described in 
o   The MITTS Securities are listed          this prospectus                   
    on the American Stock Exchange       o   You will receive no less than the 
    under the trading symbol "FML"           principal amount of your MITTS    
                                             Securities                
</TABLE>

                  Investing in the MITTS Securities involves
                     risk. See "Risk Factors" beginning on
                                   page S-8.
                                ---------------

         Neither  the  Securities  and  Exchange   Commission  nor  any  state
securities  commission  has  approved  these  securities  or  passed  upon the
adequacy of this prospectus.  Any representation to the contrary is a criminal
offense.

         The sale price of the MITTS Securities will be the prevailing  market
price at the time of sale.

                                ---------------
                              Merrill Lynch & Co.
                                ---------------

                The date of this prospectus is ________, 1999.

"MITTS" and "Market Index Target-Term Securities" are registered service marks
owned by Merrill Lynch & Co., Inc.

"Standard & Poor's(R)",  "Standard & Poor's 500",  "S&P 500(R)",  "S&P(R)" and
"500",  are  trademarks  of The  McGraw-Hill  Companies,  Inc.  and have  been
licensed for use by Merrill Lynch Capital Services,  Inc., and Merrill Lynch &
Co., Inc. is an authorized sublicensee.


<PAGE>


                               TABLE OF CONTENTS

                                                                          Page
SUMMARY INFORMATION--Q&A.....................................................3

RISK FACTORS.................................................................6

MERRILL LYNCH & CO., INC.....................................................8

RATIO OF EARNINGS TO FIXED CHARGES...........................................9

DESCRIPTION OF THE MITTS SECURITIES..........................................7

THE S&P 500 INDEX...........................................................17

OTHER TERMS.................................................................20

PROJECTED PAYMENT SCHEDULE..................................................23

WHERE YOU CAN FIND MORE INFORMATION.........................................24

INCORPORATION OF INFORMATION WE FILE WITH THE SEC...........................24

PLAN OF DISTRIBUTION........................................................25

EXPERTS.....................................................................26


<PAGE>

                           SUMMARY INFORMATION--Q&A

         This summary includes  questions and answers that highlight  selected
information  from this  prospectus to help you  understand  the S&P 500 Market
Index  Target-Term  Securities due March 27, 2006.  You should  carefully read
this prospectus to fully understand the terms of the MITTS Securities, the S&P
500 Index, and the tax and other  considerations  that are important to you in
making a decision about whether to invest in the MITTS Securities.  You should
carefully review the "Risk Factors"  section,  which highlights  certain risks
associated with an investment in the MITTS Securities, to determine whether an
investment in the MITTS Securities is appropriate for you.

         References in this  prospectus to "ML&Co.",  "we", "us" and "our" are
to Merrill Lynch & Co., Inc.

         References  in this  prospectus  to  "MLPF&S"  are to Merrill  Lynch,
Pierce, Fenner & Smith Incorporated.

What are the MITTS Securities?

         The MITTS Securities are a series of senior debt securities issued by
ML&Co.  and are not  secured by  collateral.  The MITTS  Securities  will rank
equally with all of our other  unsecured and  unsubordinated  debt.  The MITTS
Securities  will  mature  on March  27,  2006.  We  cannot  redeem  the  MITTS
Securities  at any earlier  date.  We will not make any  payments on the MITTS
Securities until maturity.

         Each unit of MITTS  Securities  represents  $10  principal  amount of
MITTS  Securities.  You may transfer the MITTS Securities only in whole units.
You will not have the right to receive physical  certificates  evidencing your
ownership except under limited circumstances. Instead, we will issue the MITTS
Securities  in the form of a  global  certificate,  which  will be held by The
Depository  Trust  Company,  also  known as DTC,  or its  nominee.  Direct and
indirect  participants  in  DTC  will  record  your  ownership  of  the  MITTS
Securities.  You  should  refer  to the  section  "Description  of  the  MITTS
Securities--Depositary" in this prospectus.

What will I receive at the stated maturity date of the MITTS Securities?

         We have  designed  the MITTS  Securities  for  investors  who want to
protect their  investment by receiving at least the principal  amount of their
investment at maturity and who also want to participate in possible  increases
in the S&P 500  Index as  reduced  by the  Adjustment  Factor.  At the  stated
maturity date, you will receive a payment on the MITTS Securities equal to the
sum of two amounts:  the "principal  amount" and the "Supplemental  Redemption
Amount".

Principal Amount

         The principal amount per unit is $10.

Supplemental Redemption Amount

         The  Supplemental  Redemption  Amount  per unit will  equal:  $10 x (
  Adjusted Ending Value - Starting Value )
 ------------------------------------------
               Starting Value

but will not be less than zero.

         "Starting Value",  equals 1,262.14,  the closing value of the S&P 500
Index on March 23, 1999, the date the MITTS Securities were priced for initial
sale to the public.

         "Adjusted  Ending  Value"  means the average of the values of the S&P
500 Index as reduced by the application of the Adjustment  Factor at the close
of the  market  on  five  business  days  before  the  maturity  of the  MITTS
Securities.  We may calculate the Adjusted  Ending Value by reference to fewer
than five or even a single day's closing  value if, during the period  shortly
before the stated maturity date of the MITTS Securities, there is a disruption
in the  trading  of the  component  stocks  included  in the S&P 500  Index or
certain futures or options relating to the S&P 500 Index.

         The  "Adjustment  Factor"  equals  2.6% per year and will be prorated
based on a 365-day year and applied  each  calendar day to reduce the value of
the S&P 500 Index. As a result of the Adjustment Factor, the adjusted value of
the S&P 500 Index used to calculate your Supplemental Redemption Amount at the
stated maturity of the MITTS Securities will be approximately 16.66% less than
the  actual  value of the S&P 500  Index  on any day  during  the  calculation
period. For a detailed discussion of how the Adjustment Factor will affect the
value of the S&P 500 Index  used to  calculate  your  Supplemental  Redemption
Amount, see "Description of the MITTS Securities--Payment at Maturity" in this
prospectus.

         For more  specific  information  about  the  Supplemental  Redemption
Amount,  please see the section  "Description of the MITTS Securities" in this
prospectus.

         We will pay you a Supplemental Redemption Amount only if the Adjusted
Ending Value is greater than the Starting  Value. If the Adjusted Ending Value
is less than, or equal to, the Starting  Value,  the  Supplemental  Redemption
Amount  will be  zero.  We will pay you the  principal  amount  of your  MITTS
Securities  regardless  of  whether  any  Supplemental  Redemption  Amount  is
payable.


<PAGE>


Examples

         Here are two examples of Supplemental  Redemption Amount calculations
assuming an Adjustment Factor of 2.6%:

Example  1--The S&P 500 Index,  as adjusted,  is below the  Starting  value at
maturity:

     Starting Value: 1,262.14
     Hypothetical closing value of the S&P 500 Index at maturity: 1,388.35
     Hypothetical Adjusted Ending Value: 1,157.08

<TABLE>
<CAPTION>
<S>                                                           <C>                               <C>   
                                                                                                 Supplemental
                                                              ( 1,157.08-1,262.14 )              Reduction
     Supplemental Redemption Amount (per unit) = $10 x         -------------------- = $0.00      Amount cannot
                                                                    1,262.14                     be less than
                                                                                                 zero)
</TABLE>

     Total payment at maturity (per unit) = $10 + $0 = $10

Example  2--The S&P 500 Index,  as adjusted,  is above the  Starting  value at
maturity:

     Starting Value: 1,262.14
     Hypothetical closing value of the S&P 500 Index at maturity: 2,145.64
     Hypothetical Adjusted Ending Value: 1,788.21

<TABLE>
<CAPTION>
<S>                                                    <C>                       <C>  
                                                       ( 1,788.21-1,262.14 )    
     Supplemental Redemption Amount (per unit) = $10 x  --------------------     = $4.17
                                                             1,262.14

     Total payment at maturity (per unit) = $10 + $4.17 = $14.17

</TABLE>

<PAGE>


Who publishes the S&P 500 Index and what does the S&P 500 Index measure?

         The S&P 500 Index is  published  by Standard & Poor's,  a division of
The McGraw-Hill  Companies,  Inc., and is intended to provide an indication of
the pattern of common stock price movement.  The value of the S&P 500 Index is
based on the relative value of the aggregate market value of the common stocks
of 500 companies as of a particular  time  compared to the  aggregate  average
market  value of the common  stocks of 500 similar  companies  during the base
period of the years 1941 through  1943.  The market value for the common stock
of a company is the product of the market  price per share of the common stock
and the number of  outstanding  shares of common stock.  As of March 22, 1999,
the 500 companies included in the S&P 500 Index represented  approximately 78%
of the  aggregate  market value of common  stocks traded on the New York Stock
Exchange;  however,  these 500  companies  are not the 500  largest  companies
listed on the NYSE and not all of these 500  companies are listed on the NYSE.
As of March 22, 1999, the aggregate market value of the 500 companies included
in the Index  represented  approximately  79% of the aggregate market value of
United States domestic,  public companies.  Standard &Poor's chooses companies
for inclusion in the S&P 500 Index with the aim of achieving a distribution by
broad industry groupings that approximates the distribution of these groupings
in the common stock population of the NYSE, which Standard & Poor's uses as an
assumed model for the composition of the total market.

         Please  note  that an  investment  in the MITTS  Securities  does not
entitle you to any ownership  interest in the stocks of the companies included
in the S&P 500 Index.

How has the S&P 500 Index performed historically?

         We have included tables showing the year-end closing value of the S&P
500 Index for each year from 1947 through 1998 and the month-end closing value
of the S&P 500 Index from January 1990  through  February  1999 in the section
"The S&P 500 Index--Historical Data on the S&P 500 Index", in this prospectus.
We have provided this historical information to help you evaluate the behavior
of  the  S&P  500  Index  in  various  economic  environments;  however,  past
performance of the S&P 500 Index is not necessarily  indicative of how the S&P
500 Index will perform in the future.

Will the MITTS Securities be listed on a stock exchange?

         The MITTS  Securities are listed on the AMEX under the trading symbol
"FML".  You should be aware that the  listing of the MITTS  Securities  on the
AMEX  will  not  necessarily  ensure  that a  liquid  trading  market  will be
available for the MITTS Securities. You should review "Risk Factors--There may
be an uncertain trading market for the MITTS Securities in the future".

What is the role of MLPF&S?

         Our subsidiary,  MLPF&S, is the underwriter for the offering and sale
of the MITTS Securities. MLPF&S is also our agent for purposes of calculating,
among other things, the Adjusted Ending Value and the Supplemental  Redemption
Amount. Under certain  circumstances,  these duties could result in a conflict
of  interest  between  MLPF&S's  status  as a  subsidiary  of  ML&Co.  and its
responsibilities as calculation agent.

Who is ML&Co.?

         Merrill  Lynch  &  Co.,  Inc.  is  a  holding  company  with  various
subsidiary  and  affiliated  companies  that  provide  investment,  financing,
insurance and related services on a global basis. For information about ML&Co.
see the section  "Merrill Lynch & Co., Inc." in the  accompanying  prospectus.
You should also read the other documents we have filed with the SEC, which you
can find by referring to the section "Where You Can Find More  Information" in
this prospectus.

Are there any risks associated with my investment?

         Yes, an investment in the MITTS Securities is subject to risk. Please
refer to the section "Risk Factors" in this prospectus.


<PAGE>

                                 RISK FACTORS

         Your  investment in the MITTS  Securities will involve certain risks.
You  should  carefully  consider  the  following  discussion  of risks  before
deciding whether an investment in the MITTS Securities is suitable for you.

You may not earn a return on your investment

         You should be aware that if the Adjusted Ending Value does not exceed
the Starting Value at the stated maturity, the Supplemental  Redemption Amount
will be zero.  This will be true even if, at some time  during the life of the
MITTS  Securities the value of the S&P 500 Index, as reduced by the Adjustment
Factor,  was higher than  Starting  Value but later  falls below the  Starting
Value. If the Supplemental Redemption Amount is zero, we will pay you only the
principal amount of your MITTS Securities.

         Your yield may be lower than the yield on a standard debt security of
comparable maturity

         The  amount we pay you at  maturity  may be less than the  return you
could  earn on other  investments.  Your  yield may be less than the yield you
would earn if you bought a standard senior  non-callable  Merrill Lynch & Co.,
Inc.  debt  security  with the same maturity  date.  Your  investment  may not
reflect the full  opportunity  cost to you when you take into account factors,
like inflation, that affect the time value of money.

         Your return will not reflect the return of owning the stocks  included
in the S&P 500 Index

         Your  return  will not  reflect  the return you would  realize if you
actually  owned the  stocks  included  in the S&P 500 Index and  received  the
dividends  paid  on  those  stocks  because  of the  reduction  caused  by the
Adjustment  Factor and because the S&P 500 Index is calculated by reference to
the prices of the common stocks  included in the S&P 500 Index without  taking
into consideration the value of dividends paid on those stocks.

There may be an uncertain trading market for the MITTS Securities in the future

         Although  the  MITTS  Securities  are  listed  on the AMEX  under the
trading symbol "FML", you cannot assume that a trading market will continue to
exist for the MITTS  Securities.  If a trading market in the MITTS  Securities
continues  to exist,  you cannot  assume that there will be  liquidity  in the
trading  market.  The  continued  existence of a trading  market for the MITTS
Securities will depend on our financial performance, and other factors such as
the increase, if any, of the value of the S&P 500 Index.

         If the trading market for the MITTS  Securities is limited and you do
not wish to hold your investment until maturity, there may be a limited number
of buyers for your MITTS Securities.  This may affect the price you receive if
you sell before maturity.

There are many factors affecting the trading value of the MITTS Securities

         We believe that the value of the index and a number of other  factors
will affect the trading value of the MITTS  Securities.  Some of these factors
interrelate  in complex  ways;  as a result,  the effect of any one factor may
offset or magnify  the  effect of another  factor.  The  following  paragraphs
describe  the  expected  impact on the trading  value of the MITTS  Securities
given a change in a specific  factor,  assuming  all other  conditions  remain
constant.

         o    S&P 500 Index  Value.  We  expect that the market  value of  the
              MITTS  Securities  will  depend  substantially  on the amount by
              which the index,  as reduced by the adjustment  factor,  exceeds
              the Starting Value. If you choose to sell your MITTS  Securities
              when the  value  of the  index,  as  reduced  by the  adjustment
              factor, exceeds the Starting Value you may receive substantially
              less than the amount that would be payable at maturity  based on
              this  value  because  of the  expectation  that the  index  will
              continue to fluctuate  until  shortly  before the maturity  date
              when the average value of the index is determined. If you choose
              to sell  your  MITTS  Securities  when the value of the index is
              below the  Starting  Value,  you may  receive  less than the $10
              principal  amount  per unit of  MITTS  Securities.  In  general,
              rising U.S. dividend rates, or dividends per share, may increase
              the value of the index while  falling  U.S.  dividend  rates may
              decrease the value of the index.  Political,  economic and other
              developments  that  affect the stocks  included in the index may
              also  affect  the  value of the index and the value of the MITTS
              Securities.

          o   Interest  Rates.   Because  we  will  pay,  at  a  minimum,  the
              principal  amount per unit of MITTS  Securities at maturity,  we
              expect that  changes in  interest  rates will affect the trading
              value of the MITTS  Securities.  In  general,  if U.S.  interest
              rates  increase,  we expect that the trading  value of the MITTS
              Securities will decrease and, conversely, if U.S. interest rates
              decrease,  we expect the trading  value of the MITTS  Securities
              will increase.  Interest rates may also affect the U.S.  economy
              and, in turn, the value of the index.  Rising interest rates may
              lower the value of the index and,  thus,  the MITTS  Securities.
              Falling  interest rates may increase the value of the index and,
              thus, may increase the value of the MITTS Securities.

           o  Volatility  of  the  Index.  Volatility  is  the  term  used  to
              describe  the  size  and   frequency  of  market   fluctuations.
              Generally,  if the volatility of the index increases,  we expect
              that the trading value of the MITTS Securities will increase. If
              the  volatility  of the  index  decreases,  we  expect  that the
              trading value of the MITTS Securities will decrease.

           o  Time  Remaining  to  Maturity.  We  anticipate  that before  the
              maturity of the MITTS  Securities the MITTS Securities may trade
              at a value above that which would be expected based on the level
              of interest  rates and the index  value.  This  difference  will
              reflect a "time  premium"  due to  expectations  concerning  the
              value of the index during the period before the stated  maturity
              of the MITTS Securities.  However,  as the time remaining to the
              stated  maturity of the MITTS  Securities  decreases,  we expect
              that this time premium will decrease, lowering the trading value
              of the MITTS Securities.

           o  Dividend Yields.  If  dividend  yields on the stocks included in
              the  index  increase,  we  expect  that the  value of the  MITTS
              Securities will decrease.  Conversely, if dividend yields on the
              stock included in the index  decrease,  we expect that the value
              of the MITTS Securities will increase.

           o  Changes  in  Our Credit  Ratings.  Our  credit  ratings  are  an
              assessment of our ability to pay our obligations.  Consequently,
              real or anticipated changes in our credit ratings may affect the
              trading  value of the MITTS  Securities.  However,  because your
              return on your MITTS  Securities  is  dependent  upon factors in
              addition to our ability to pay our  obligations  under the MITTS
              Securities,  such as the percentage increase in the value of the
              index at maturity, an improvement in our credit ratings will not
              reduce investment risks related to the MITTS Securities.

         It is important for you to  understand  that the impact of one of the
factors  specified  above,  such as an increase in interest rates,  may offset
some or all of any  increase  in the  trading  value of the  MITTS  Securities
attributable to another factor, such as an increase in the index value.

         In general,  assuming  all  relevant  factors are held  constant,  we
expect that the effect on the trading value of the MITTS Securities of a given
change in most of the factors  listed above will be less if it occurs later in
the term of the MITTS  Securities than if it occurs earlier in the term of the
MITTS Securities.  However,  we expect that the effect on the trading value of
the MITTS  Securities  of a given  increase  in the value of the index will be
greater  if it  occurs  later in the term of the MITTS  Securities  than if it
occurs earlier in the term of the MITTS Securities.

Amounts payable on the MITTS Securities may be limited by state law

         New York  State  law  governs  the  indenture  under  which the MITTS
Securities  will be  issued.  New York has usury laws that limit the amount of
interest that can be charged and paid on loans, which includes debt securities
like the MITTS  Securities.  Under  present New York law,  the maximum rate of
interest is 25% per annum on a simple interest basis. This limit may not apply
to debt securities in which $2,500,000 or more has been invested.

         While we believe  that New York law would be given  effect by a state
or Federal court sitting outside of New York, many other states also have laws
that  regulate  the  amount of  interest  that may be charged to and paid by a
borrower.  We will  promise,  for the  benefit  of the  holders  of the  MITTS
Securities,  to the extent  permitted  by law,  not to  voluntarily  claim the
benefits of any laws concerning usurious rates of interest.

Purchases and sales by us and our affiliates may affect your return

         We and our  other  affiliates  may from  time to time buy or sell the
stocks  included  in the S&P 500  Index  for our own  accounts,  for  business
reasons  or in  connection  with  hedging  our  obligations  under  the  MITTS
Securities.  These transactions could affect the price of these stocks and the
value  of the  S&P 500  Index  in a  manner  that  would  be  adverse  to your
investment in the MITTS Securities.

Potential conflicts

         The calculation agent is our subsidiary. Under certain circumstances,
MLPF&S's role as our subsidiary and its  responsibilities as calculation agent
for the MITTS  Securities  could give rise to  conflicts of  interests.  These
conflicts  could occur,  for  instance,  in  connection  with the  calculation
agent's determination as to whether a Market Disruption Event has occurred, or
in connection with judgments that it would be required to make in the event of
a  discontinuance  of the  S&P  500  Index.  See  "Description  of  the  MITTS
Securities--Adjustments  to the S&P 500 Index;  Market Disruption  Events" and
"--Discontinuance of the S&P 500 Index" in this prospectus. MLPF&S is required
to carry  out its  duties  as  calculation  agent in good  faith and using its
reasonable  judgment.  However,  you should be aware  that  because we control
MLPF&S, potential conflicts of interest could arise.

         We have entered into an arrangement  with our subsidiary to hedge the
market risks associated with our obligation to pay the Supplemental Redemption
Amount.  Our  subsidiary  expects  to make a profit  in  connection  with this
arrangement.  We did not seek  competitive  bids for such an arrangement  from
unaffiliated parties.

Other considerations

         You should  reach an  investment  decision  with  regard to the MITTS
Securities  only after  carefully  considering  the  suitability  of the MITTS
Securities in the light of your particular circumstances.

         You should also  consider  the tax  consequences  of investing in the
MITTS Securities and should consult with your tax adviser.


<PAGE>

                           MERRILL LYNCH & CO., INC.

         We  are a  holding  company  that,  through  our  U.S.  and  non-U.S.
subsidiaries  and  affiliates  such as Merrill Lynch,  Pierce,  Fenner & Smith
Incorporated,  Merrill Lynch Government Securities Inc., Merrill Lynch Capital
Services,  Inc.,  Merrill Lynch  International,  Merrill Lynch Capital Markets
Bank Ltd., Merrill Lynch Asset Management L.P. and Merrill Lynch Mercury Asset
Management,  provides investment,  financing, advisory, insurance, and related
products on a global basis, including:

         o  securities brokerage, trading and underwriting;

         o  investment  banking,  strategic  services,  including  mergers and
            acquisitions and other corporate finance advisory activities;

         o asset  management and other investment  advisory and  recordkeeping
           services;

         o trading and  brokerage  of swaps,  options,  forwards,  futures and
           other derivatives;

         o securities clearance services;

         o equity, debt and economic research;

         o banking, trust and lending services, including mortgage lending and
           related services; and

         o insurance sales and underwriting services.

We provide these  products and services to a wide array of clients,  including
individual   investors,   small   businesses,    corporations,    governments,
governmental agencies and financial institutions.

         Our principal  executive office is located at World Financial Center,
North Tower, 250 Vesey Street,  New York, New York 10281; our telephone number
is (212) 449-1000.

         If you  want  to find  more  information  about  us,  please  see the
sections entitled "Where You Can Find More Information" and  "Incorporation of
Information We File with the SEC" in this prospectus.

         In this prospectus, "ML&Co.", "we", "us" and "our" refer specifically
to Merrill Lynch & Co., Inc., the holding company. ML&Co. is the issuer of the
MITTS Securities described in this prospectus.

<PAGE>

                      RATIO OF EARNINGS TO FIXED CHARGES

         In 1998, we acquired the outstanding shares of Midland Walwyn,  Inc.,
in a  transaction  accounted  for  as a  pooling-of-interests.  The  following
information for the fiscal years 1994 through 1997 has been restated as if the
two entities had always been combined.

         The following  table sets forth our historical  ratios of earnings to
fixed charges for the periods indicated:

                                            Year Ended Last Friday in December
                                             1994   1995   1996   1997   1998
                                             ----   ----   ----   ----   ----

Ratio of earnings to fixed charges(a)....... 1.2     1.2    1.2    1.2    1.1

- ---------- 
(a)     The effect of combining  Midland Walwyn did not change the ratios 
        reported for the fiscal years 1994 through 1997.

         For the  purpose  of  calculating  the  ratio  of  earnings  to fixed
charges,  "earnings"  consist of earnings from  continuing  operations  before
income taxes and fixed charges,  excluding  capitalized interest and preferred
security dividend requirements. "Fixed charges" consist of interest costs, the
interest factor in rentals,  amortization  of debt issuance  costs,  preferred
security dividend requirements of subsidiaries, and capitalized interest.

                      DESCRIPTION OF THE MITTS SECURITIES

         On March 26, 1999,  ML&Co.  issued an aggregate  principal  amount of
$70,000,000 or 7,000,000 units of the MITTS  Securities.  The MITTS Securities
were issued as a series of senior  debt  securities  under the 1983  Indenture
which is more fully described in this prospectus.

         The MITTS Securities will mature on March 27, 2006.

         While at maturity a beneficial owner of a MITTS Security will receive
the principal  amount of the MITTS Security plus the  Supplemental  Redemption
Amount  described  below,  if any, there will be no other payment of interest,
periodic or otherwise. See "- Payment at Maturity" below.

         The MITTS  Securities  are not subject to redemption by ML&Co.  or at
the option of any beneficial owner before maturity.  Upon the occurrence of an
Event of Default with respect to the MITTS  Securities,  beneficial  owners of
the MITTS Securities may accelerate the maturity of the MITTS  Securities,  as
described  under "- Events of Default  and  Acceleration"  and "Other  Terms -
Events of Default" in this prospectus.

         The MITTS Securities were issued in denominations of whole units.

Payment at Maturity

         At the stated  maturity date, a beneficial  owner of a MITTS Security
will be  entitled  to  receive  the  principal  amount  plus the  Supplemental
Redemption Amount, if any, all as provided below. If the Adjusted Ending Value
does not exceed the Starting  Value,  a beneficial  owner of a MITTS  Security
will be entitled to receive only the principal amount.

Determination of the Supplemental Redemption Amount

         The  Supplemental  Redemption  Amount  for a MITTS  Security  will be
determined by the calculation agent and will equal:

<TABLE>
<CAPTION>
<S>                                                        <C>   
Principal amount of the MITTS Security ($10 per unit)   X   (Adjusted Ending Value - Starting Value )
                                                            (---------------------------------------)
                                                            (              Starting Value           )
</TABLE>

provided, however, that in no event will the Supplemental Redemption Amount be
less than zero.

         The "Starting  Value" equals  1,262.14,  the closing value of the S&P
500 Index on March 23,  1999,  the date the MITTS  Securities  were priced for
initial sale to the public.

         The "Adjusted  Ending  Value" will be  determined by the  calculation
agent and will equal the average or arithmetic  mean of the closing  values of
the S&P 500 Index, as reduced by the  application of the Adjustment  Factor on
each  Calculation  Day,  determined on each of the first five Calculation Days
during the Calculation  Period. If there are fewer than five Calculation Days,
then the Adjusted  Ending Value will equal the average or  arithmetic  mean of
the closing values of the S&P 500 Index on those  Calculation  Days as reduced
by the application of the Adjustment  Factor on each Calculation Day. If there
is only one  Calculation  Day,  then the Adjusted  Ending Value will equal the
closing value of the S&P 500 Index on that  Calculation  Day as reduced by the
application  of  the  Adjustment   Factor  on  that  Calculation  Day.  If  no
Calculation Days occur during the Calculation Period, then the Adjusted Ending
Value will equal the closing value of the S&P 500 Index determined on the last
scheduled  Index  Business  Day in the  Calculation  Period as  reduced by the
application of the Adjustment  Factor on that Calculation  Day,  regardless of
the occurrence of a Market Disruption Event on that day.

         The  "Adjustment  Factor" equals 2.6% and will be prorated based on a
365-day  year and  applied  each  calendar  day  during  the term of the MITTS
Securities  to  reduce  the  value of the S&P 500  Index.  As a result  of the
Adjustment  Factor,  the adjusted value of the S&P 500 Index used to calculate
your  Supplemental  Redemption  Amount  at the  stated  maturity  of the MITTS
Securities will be approximately  16.66% less than the actual value of the S&P
500 Index on any day during the Calculation Period.

         The  "Calculation  Period"  means the period from and  including  the
seventh scheduled Index Business Day before the maturity date to and including
the second scheduled Index Business Day before the maturity date.

         "Calculation Day" means any Index Business Day during the Calculation
Period on which a Market Disruption Event has not occurred.

         An "Index  Business  Day" is a day on which the NYSE and the AMEX are
open for trading and the S&P 500 Index or any Successor  Index,  as defined on
page S-14, is calculated and published.

         All determinations made by the calculation agent shall be at the sole
discretion  of the  calculation  agent  and,  absent  a  determination  by the
calculation  agent of a manifest  error,  shall be conclusive for all purposes
and binding on ML&Co. and beneficial owners of the MITTS Securities.

<PAGE>

Hypothetical Returns

         The following table illustrates,  for a range of hypothetical closing
values of the S&P 500 Index during the Calculation Period:

         o the  Adjusted  Ending Value used to calculate  the  Supplemental  
           Redemption Amount; 

         o the percentage change from the Starting Value to the Adjusted Ending
           Value;  

         o the total amount payable per unit of MITTS  Securities;  

         o the total rate of return on the MITTS Securities; o the pretax 
           annualized rate of return on the MITTS  Securities; and 

         o the pretax annualized  rate of return of the stocks included in the 
           S&P 500 Index, which includes an assumed aggregate dividend yield of
           1.27% per annum, as more fully described below.

         This table assumes an Adjustment Factor of 2.6% per year.
<TABLE>
<CAPTION>

                                        Adjusted                                                                     Pretax
    Hypothetical                      Ending Value       Total Amount                                            Annualized Rate
  Closing Value of                     Percentage         Payable at       Total Rate of    Pretax Annualized     of Return of
   S&P 500 Index                       Change Over    Maturity per Unit    Return on the    Rate of Return on    Stocks Included
     During the         Adjusted      the Starting            of               MITTS            the MITTS        in The S&P 500
 Calculation Period   Ending Value        Value        MITTS Securities     Securities        Securities(1)        Index(1)(2)
<S>                       <C>            <C>                <C>                 <C>               <C>                 <C>  
      631.07              525.94         -58.33%            $10.00              0.00%             0.00%               -8.39%
      757.28              631.13         -49.99%            $10.00              0.00%             0.00%               -5.91%
      883.50              736.32         -41.66%            $10.00              0.00%             0.00%               -3.77%
    1,009.71              841.51         -33.33%            $10.00              0.00%             0.00%               -1.90%
    1,135.93              946.70         -24.99%            $10.00              0.00%             0.00%               -0.24%
    1,262.14(4)         1,051.89         -16.66%            $10.00              0.00%             0.00%                1.27%
    1,388.35            1,157.08          -8.32%            $10.00              0.00%             0.00%                2.64%
    1,514.57            1,262.27           0.01%            $10.00              0.01%             0.00%                3.91%
    1,640.78            1,367.46           8.34%            $10.83              8.34%             1.15%                5.08%
    1,767.00            1,472.65          16.68%            $11.67             16.68%             2.21%                6.17%
    1,893.21            1,577.83          25.01%            $12.50             25.01%             3.21%                7.20%
    2,019.42            1,683.02          33.35%            $13.33             33.35%             4.15%                8.16%
    2,145.64            1,788.21          41.68%            $14.17             41.68%             5.03%                9.07%
    2,271.85            1,893.40          50.02%            $15.00             50.02%             5.87%                9.93%
    2,398.07            1,998.59          58.35%            $15.83             58.35%             6.67%               10.75%
    2,524.28            2,103.78          66.68%            $16.67             66.68%             7.42%               11.53%
    2,650.49            2,208.97          75.02%            $17.50             75.02%             8.15%               12.27%
    2,776.71            2,314.16          83.35%            $18.34             83.35%             8.84%               12.99%
    2,902.92            2,419.35          91.69%            $19.17             91.69%             9.50%               13.67%
    3,029.14            2,524.54         100.02%            $20.00            100.02%            10.14%               14.33%
    3,155.35            2,629.72         108.35%            $20.84            108.35%            10.75%               14.97%
</TABLE>
- ---------------

(1)  The Adjusted Ending Values in this column are  approximately  16.66% less
     than the  hypothetical  closing  values of the S&P 500 Index  during  the
     Calculation  Period  as a result  of the  application  of the  Adjustment
     Factor of 2.6% over the term of the MITTS Securities.

(2)  The  annualized  rates of return  specified  in the  preceding  table are
     calculated on a semiannual bond equivalent basis. 

(3)  This rate of return  assumes:  

     (a)  a dividend yield of 1.27% per annum, paid quarterly from the date of
          initial  delivery of MITTS  Securities,  applied to the value of the
          S&P 500  Index  at the  end of  each  quarter  assuming  this  value
          increases  or  decreases  linearly  from the  Starting  Value to the
          hypothetical   closing  value  of  the  S&P  500  Index  during  the
          Calculation  Period;  

     (b)  no transaction fees or expenses; 

     (c)  an investment  term equal to the term of the MITTS  Securities,  and

     (d)  a final closing value of the S&P 500 Index equal to the hypothetical
          closing  value of the S&P 500 Index during the  Calculation  Period.

(4)  The Starting Value of the S&P 500 Index.

         The above figures are for purposes of  illustration  only. The actual
Supplemental  Redemption  Amount received by investors and the resulting total
and  pretax  annualized  rate of return  will  depend  entirely  on the actual
Adjusted Ending Value determined by the calculation  agent as provided in this
prospectus.  Historical  data  regarding the S&P 500 Index is included in this
prospectus under "The S&P 500 Index--Historical Data on the S&P 500 Index".

Adjustments to the S&P 500 Index; Market Disruption Events

         If at any time the method of  calculating  the S&P 500 Index,  or its
value, is changed in any material  respect,  or if the S&P 500 Index is in any
other way  modified  so that the S&P 500 Index does not, in the opinion of the
calculation  agent,  fairly represent the value of the S&P 500 Index had these
changes or  modifications  not been made,  then, from and after that time, the
calculation  agent shall,  at the close of business in New York,  New York, on
each date that the closing value with respect to the Adjusted  Ending Value is
to be calculated,  make any  adjustments as, in the good faith judgment of the
calculation  agent,  may be necessary in order to arrive at a calculation of a
value of a stock  index  comparable  to the S&P 500 Index as if the changes or
modifications  had not been made, and calculate a closing value with reference
to the S&P 500 Index, as adjusted.  Accordingly,  if the method of calculating
the S&P 500  Index is  modified  so that the  value of the S&P 500  Index is a
fraction or a multiple of what it would have been if it had not been modified,
for example,  due to a split in the S&P 500 Index,  then the calculation agent
shall  adjust  the S&P 500  Index in order to arrive at a value of the S&P 500
Index as if it had not been  modified,  for  example,  as if the split had not
occurred.

         "Market  Disruption  Event" means either of the following  events; as
determined by the calculation agent:

         (a)    the suspension or material limitation on trading for more than
                two hours of  trading,  or during  the  one-half  hour  period
                preceding the close of trading on the applicable exchange,  in
                20% or more of the  stocks  which  then  comprise  the S&P 500
                Index; or

         (b)    the suspension or material limitation,  in each case, for more
                than two hours of trading,  whether by reason of  movements in
                price  otherwise  exceeding  levels  permitted by the relevant
                exchange or otherwise, in

                (1)   futures  contracts  related  to the  S&P 500  Index,  or
                      options on those futures contracts,  which are traded on
                      any major U.S. exchange or

                (2)   option contracts related to the S&P 500 Index which are 
                      traded on any major U.S. exchange.

         A limitation  on the hours in a trading day and/or  number of days of
trading will not  constitute a Market  Disruption  Event if it results from an
announced change in the regular business hours of the relevant exchange.

         For the  purposes  of clause (a) above,  any  limitations  on trading
during significant market  fluctuations under NYSE Rule 80A, or any applicable
rule or  regulation  enacted  or  promulgated  by the NYSE or any  other  self
regulatory  organization  or the SEC of  similar  scope as  determined  by the
calculation agent, will be considered "material".

Discontinuance of the S&P 500 Index

         If Standard & Poor's  discontinues  publication  of the S&P 500 Index
and S&P or another entity  publishes a successor or substitute  index that the
calculation agent determines,  in its sole discretion, to be comparable to the
S&P 500  Index (a  "Successor  Index"),  then,  upon the  calculation  agent's
notification of that  determination to the trustee and ML&Co., the calculation
agent will substitute the Successor Index as calculated by Standard &Poor's or
any other entity for the S&P 500 Index.  Upon any selection by the calculation
agent of a Successor Index, ML&Co.
shall cause notice to be given to holders of the MITTS Securities.

         If Standard & Poor's  discontinues  publication  of the S&P 500 Index
and a Successor Index is not selected by the calculation agent or is no longer
published on any of the Calculation  Days, the value to be substituted for the
S&P 500 Index  for any  Calculation  Day used to  calculate  the  Supplemental
Redemption  Amount at maturity  will be a value  computed  by the  calculation
agent for each  Calculation Day in accordance with the procedures last used to
calculate the S&P 500 Index before the discontinuance. If a Successor Index is
selected or the calculation  agent  calculates a value as a substitute for the
S&P 500 Index as  described  below,  that  Successor  Index or value  shall be
substituted for the S&P 500 Index for all purposes,  including for purposes of
determining whether a Market Disruption Event exists. If the calculation agent
calculates a value as a substitute for the S&P 500 Index,  "Index  Calculation
Day" shall mean any day on which the  calculation  agent is able to  calculate
that value.

         If Standard & Poor's discontinues publication of the Index before the
period during which the Supplemental Redemption Amount is to be determined and
the calculation  agent determines that no Successor Index is available at that
time,   then  on  each  Business  Day  until  the  earlier  to  occur  of  the
determination  of  the  Adjusted  Ending  Value  and a  determination  by  the
calculation  agent that a Successor Index is available,  the calculation agent
shall  determine  the value that would be used in computing  the  Supplemental
Redemption Amount as described in the preceding  paragraph as if that day were
a Calculation Day. The calculation agent will cause notice of each value to be
published  not less often than once each month in The Wall  Street  Journal or
another newspaper of general circulation,  and for this information to be made
available by telephone. Despite these alternative arrangements, discontinuance
of the  publication  of the S&P 500 Index may adversely  affect trading in the
MITTS Securities.

Events of Default and Acceleration

         In case an Event of  Default  with  respect  to any MITTS  Securities
occurs and is continuing,  the amount payable to a beneficial owner of a MITTS
Security upon any acceleration permitted by the MITTS Securities, with respect
to each $10  principal  amount of the MITTS  Securities,  will be equal to the
principal amount and the Supplemental Redemption Amount, if any, calculated as
though the date of early  repayment were the stated maturity date of the MITTS
Securities.  See "Description of the MITTS Securities--Payment at Maturity" in
this prospectus. If a bankruptcy proceeding is commenced in respect of ML&Co.,
the claim of the beneficial  owner of a MITTS  Security may be limited,  under
Section  502(b)(2)  of Title 11 of the United  States Code,  to the  principal
amount of the MITTS Security plus an additional amount of contingent  interest
calculated as though the date of the  commencement  of the proceeding were the
maturity date of the MITTS Securities.

         In case of default in payment of the MITTS Securities, whether at the
stated  maturity or upon  acceleration,  from and after the maturity  date the
MITTS  Securities  shall bear interest,  payable upon demand of the beneficial
owners,  at the rate of 6.13% per  annum,  to the extent  that  payment of any
interest shall be legally enforceable, on the unpaid amount due and payable on
that date in  accordance  with the terms of the MITTS  Securities  to the date
payment of the amount has been made or duly provided for.

Depositary

         Upon  issuance,  all MITTS  Securities  will be represented by one or
more  fully  registered  global  securities.  Each  global  security  will  be
deposited  with,  or on behalf of,  DTC,  (DTC,  together  with any  successor
thereto, being a "depositary"), as depositary,  registered in the name of Cede
& Co., DTC's partnership nominee. Unless and until it is exchanged in whole or
in part for MITTS  Securities  in definitive  form, no global  security may be
transferred  except as a whole by the depositary to a nominee of depositary or
by a nominee  of the  depositary  to  depositary  or  another  nominee  of the
depositary  or by  the  depositary  or  any  nominee  to a  successor  of  the
depositary or a nominee of that successor.

         So long as DTC, or its  nominee,  is a  registered  owner of a global
security,  DTC or its nominee, as the case may be, will be considered the sole
owner or holder of the MITTS Securities represented by the global security for
all  purposes  under  the  1983  Indenture.  Except  as  provided  below,  the
beneficial  owners of the MITTS  Securities  represented by a global  security
will not be  entitled  to have the MITTS  Securities  represented  by a global
security registered in their names, will not receive or be entitled to receive
physical  delivery of the MITTS  Securities in definitive form and will not be
considered  the  owners or  holders  of the  MITTS  Securities  including  for
purposes of receiving any reports delivered by ML&Co. or the Trustee under the
1983  Indenture.  Accordingly,  each person owning a beneficial  interest in a
global  security must rely on the procedures of DTC and, if that person is not
a participant of DTC, on the procedures of the participant  through which that
person owns its  interest,  to exercise  any rights of a holder under the 1983
Indenture.  ML&Co.  understands that under existing industry practices, in the
event  that  ML&Co.  requests  any  action  of  holders  or that an owner of a
beneficial  interest in a global  security  desires to give or take any action
which a holder is entitled to give or take under the 1983 Indenture, DTC would
authorize the participants  holding the relevant beneficial  interests to give
or take that action, and those participants would authorize  beneficial owners
owning  through  those  participants  to give or take  that  action  or  would
otherwise  act upon the  instructions  of  beneficial  owners.  Conveyance  of
notices and other  communications  by DTC to participants,  by participants to
indirect  participants  and  by  participants  and  indirect  participants  to
beneficial owners will be governed by arrangements  among them, subject to any
statutory or regulatory requirements as may be in effect from time to time.

         If:

     o    the  depositary  is at any time  unwilling  or unable to continue as
          depositary  and a successor  depositary  is not  appointed by ML&Co.
          within 60 days,

     o    ML&Co.  executes and delivers to the trustee a company  order to the
          effect that the global securities shall be exchangeable, or

     o    an Event of Default  under the 1983  Indenture  has  occurred and is
          continuing with respect to the MITTS Securities,

the global  securities will be exchangeable for MITTS Securities in definitive
form  of  like  tenor  and  of  an  equal  aggregate   principal   amount,  in
denominations  of $10 and  integral  multiples of $10.  The  definitive  MITTS
Securities  will be  registered in the name or names as the  depositary  shall
instruct  the  trustee.  It is expected  that  instructions  may be based upon
directions  received  by the  depositary  from  participants  with  respect to
ownership of beneficial interests in the global securities.

         The following is based on information furnished by DTC:

         DTC will act as securities  depositary for the MITTS Securities.  The
MITTS Securities will be issued as fully registered  securities  registered in
the  name  of  Cede & Co.,  DTC's  partnership  nominee.  One  or  more  fully
registered  global  securities will be issued for the MITTS  Securities in the
aggregate principal amount of that issue, and will be deposited with DTC.

         DTC is a  limited-purpose  trust company organized under the New York
Banking  Law, a  "banking  organization"  within  the  meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing  corporation"
within the meaning of the New York Uniform  Commercial  Code,  and a "clearing
agency" registered pursuant to the provisions of Section 17A of the Securities
Exchange Act of 1934, as amended.  DTC holds  securities that its participants
deposit with DTC. DTC also  facilitates the settlement  among  participants of
securities   transactions,   such  as  transfers  and  pledges,  in  deposited
securities through electronic computerized book-entry changes in participants'
accounts,  thereby  eliminating  the need for physical  movement of securities
certificates.  Direct  participants  of DTC  include  securities  brokers  and
dealers,  banks,  trust  companies,  clearing  corporations  and certain other
organizations.  DTC is owned by a number of its direct participants and by the
NYSE,  the AMEX,  and the National  Association  of Securities  Dealers,  Inc.
Access to the DTC's  system is also  available  to others  such as  securities
brokers and dealers,  banks and trust companies that clear through or maintain
a  custodial  relationship  with a  direct  participant,  either  directly  or
indirectly.  The rules applicable to DTC and its participants are on file with
the SEC.

         Purchases of MITTS  Securities  under DTC's system must be made by or
through  direct  participants,  which  will  receive  a credit  for the  MITTS
Securities on DTC's records.  The ownership  interest of each beneficial owner
is in turn to be recorded on the records of direct and indirect  participants.
Beneficial  owners will not  receive  written  confirmation  from DTC of their
purchase,  but beneficial owners are expected to receive written confirmations
providing details of the transaction,  as well as periodic statements of their
holdings,  from  the  direct  or  indirect  participants  through  which  that
beneficial  owner  entered  into  the  transaction.   Transfers  of  ownership
interests in the MITTS  Securities are to be  accomplished  by entries made on
the books of participants acting on behalf of beneficial owners.

         To facilitate  subsequent  transfers,  all MITTS Securities deposited
with DTC are registered in the name of DTC's partnership  nominee,  Cede & Co.
The deposit of MITTS Securities with DTC and their registration in the name of
Cede & Co. effect no change in beneficial  ownership.  DTC has no knowledge of
the actual beneficial  owners of the MITTS  Securities;  DTC's records reflect
only the  identity  of the direct  participants  to whose  accounts  the MITTS
Securities are credited,  which may or may not be the beneficial  owners.  The
participants will remain  responsible for keeping account of their holdings on
behalf of their customers.

         Conveyance  of  notices  and  other  communications  by DTC to direct
participants,  by direct participants to indirect participants,  and by direct
participants and indirect  participants to beneficial  owners will be governed
by   arrangements   among  them,   subject  to  any  statutory  or  regulatory
requirements as may be in effect from time to time.
         Neither DTC nor Cede & Co. will  consent or vote with  respect to the
MITTS Securities.  Under its usual  procedures,  DTC mails an omnibus proxy to
ML&Co. as soon as possible after the applicable record date. The omnibus proxy
assigns Cede & Co.'s consenting or voting rights to those direct  participants
identified in a listing  attached to the omnibus  proxy to whose  accounts the
MITTS Securities are credited on the record date.

         Principal, premium, if any, and/or interest, if any, payments made in
cash on the MITTS  Securities  will be made in immediately  available funds to
DTC.  DTC's  practice  is to  credit  direct  participants'  accounts  on  the
applicable payment date in accordance with their respective  holdings shown on
the  depositary's  records  unless DTC has reason to believe  that it will not
receive payment on that date.  Payments by  participants to beneficial  owners
will be governed by standing  instructions and customary practices,  as is the
case with  securities  held for the  accounts of  customers  in bearer form or
registered in "street name", and will be the responsibility of the participant
and not of DTC, the trustee or ML&Co.,  subject to any statutory or regulatory
requirements  as may be in effect  from time to time.  Payment  of  principal,
premium,  if any, and/or  interest,  if any, to DTC is the  responsibility  of
ML&Co. or the trustee,  disbursement of these payments to direct  participants
shall be the  responsibility of DTC, and disbursement of these payments to the
beneficial  owners  shall be the  responsibility  of direct  participants  and
indirect participants.

         DTC may discontinue  providing its services as securities  depositary
with respect to the MITTS Securities at any time by giving  reasonable  notice
to ML&Co.  or the  trustee.  Under  these  circumstances,  in the event that a
successor securities  depositary is not obtained,  MITTS Security certificates
are required to be printed and delivered.

         ML&Co.  may decide to  discontinue  use of the  system of  book-entry
transfers  through DTC or a successor  securities  depositary.  In that event,
MITTS Security certificates will be printed and delivered.

         The  information in this section  concerning DTC and DTC's system has
been  obtained  from sources that ML&Co.  believes to be reliable,  but ML&Co.
takes no responsibility for its accuracy.

Same-Day Settlement and Payment

         Settlement for the MITTS  Securities  will be made by the underwriter
in immediately available funds. ML&Co. will make all payments of principal and
the Supplemental  Redemption Amount, if any, in immediately available funds so
long as the MITTS Securities are maintained in book-entry form.


                               THE S&P 500 INDEX

         Standard & Poor's  publishes the S&P 500 Index. The index is intended
to provide an  indication of the pattern of common stock price  movement.  The
calculation  of the value of the S&P 500  Index,  discussed  below in  further
detail,  is based on the relative  value of the aggregate  market value of the
common  stocks  of 500  companies  as of a  particular  time  compared  to the
aggregate  average market value of the common stocks of 500 similar  companies
during the base period of the years 1941 through  1943.  As of March 22, 1999,
the 500 companies included in the S&P 500 Index represented  approximately 78%
of the aggregate  market value of common  stocks traded on the NYSE;  however,
these 500 companies are not the 500 largest  companies  listed on the NYSE and
not all of these 500  companies  are listed on the NYSE. As of March 22, 1999,
the aggregate market value of the 500 companies  included in the S&P 500 Index
represented  approximately  79% of the aggregate market value of United States
domestic, public companies.  Standard & Poor's chooses companies for inclusion
in the S&P 500  Index  with  the aim of  achieving  a  distribution  by  broad
industry  groupings that  approximates  the distribution of these groupings in
the common stock  population of the NYSE,  which  Standard & Poor's uses as an
assumed  model for the  composition  of the total  market.  Relevant  criteria
employed by Standard & Poor's include the viability of the particular company,
the extent to which that company  represents the industry group to which it is
assigned,  the extent to which the market price of that company's common stock
is generally  responsive to changes in the affairs of the respective  industry
and the market value and trading activity of the common stock of that company.
Four main groups of  companies  comprise  the S&P 500 Index with the number of
companies   currently   included  in  each  group  indicated  in  parentheses:
Industrials  (380),  Utilities (39),  Transportation  (10) and Financial (71).
Standard & Poor's may from time to time, in its sole discretion, add companies
to, or delete  companies  from,  the S&P 500 Index to achieve  the  objectives
stated above.

         The S&P 500 Index does not reflect the  payment of  dividends  on the
stocks  included  in the  S&P  500  Index.  Because  of  this,  and due to the
application of the Adjustment  Factor, the return on the MITTS Securities will
not be the same that you would  receive if you were to purchase  these  stocks
and hold them for a period equal to the term of the MITTS Securities.

Computation of the S&P 500 Index

         Standard  &  Poor's  currently  computes  the S&P 500  Index  as of a
particular time as follows:

     (a)  the  product  of the  market  price per share and the number of then
          outstanding  shares of each component stock is determined as of that
          time (referred to as the "market value" of that stock);

     (b)  the  market  values  of all  component  stocks  as of that  time are
          aggregated;

     (c)  the mean  average of the  market  values as of each week in the base
          period of the years 1941  through  1943 of the common  stock of each
          company  in a  group  of  500  substantially  similar  companies  is
          determined;

     (d)  the mean average  market  values of all these common stocks over the
          base period are aggregated  (the aggregate  amount being referred to
          as the "base value");

     (e)  the  current  aggregate  market  value of all  component  stocks  is
          divided by the Base Value; and

     (f)  the resulting quotient, expressed in decimals, is multiplied by ten.

         While Standard & Poor's  currently  employs the above  methodology to
calculate the S&P 500 Index,  no assurance can be given that Standard & Poor's
will not modify or change  this  methodology  in a manner  that may affect the
Supplemental  Redemption Amount, if any, payable to beneficial owners of MITTS
Securities upon maturity or otherwise.

         Standard & Poor's adjusts the foregoing formula to offset the effects
of changes in the market  value of a component  stock that are  determined  by
Standard &Poor's to be arbitrary or not due to true market fluctuations.
These changes may result from causes such as

     o    the issuance of stock dividends,

     o    the granting to shareholders of rights to purchase additional shares
          of stock,

     o    the  purchase of shares by  employees  pursuant to employee  benefit
          plans,

     o    consolidations and acquisitions,

     o    the granting to shareholders of rights to purchase other  securities
          of ML&Co.,

     o    the substitution by Standard & Poor's of particular component stocks
          in the S&P 500 Index, and

     o    other reasons.

         In these cases,  Standard & Poor's first  recalculates  the aggregate
market value of all component  stocks,  after taking account of the new market
price  per  share  of the  particular  component  stock or the new  number  of
outstanding  shares  of that  stock  or both,  as the  case  may be,  and then
determines the new base value in accordance with the following formula:

          old base value  x       new base value        =  new market value
                                 old market value

         The result is that the base value is  adjusted in  proportion  to any
change in the aggregate  market value of all component  stocks  resulting from
the causes referred to above to the extent  necessary to negate the effects of
these causes upon the S&P 500 Index.

Historical Data on the S&P 500 Index

         The  following  table  sets forth the  closing  values of the S&P 500
Index on the last  business  day of each  year  from  1947  through  1998,  as
published by Standard & Poor's. The historical experience of the S&P 500 Index
should not be taken as an indication of future  performance,  and no assurance
can be given that the value of the S&P 500 Index will not  decline and thereby
reduce or eliminate the Supplemental Redemption Amount which may be payable to
holders of the MITTS Securities at the maturity date.

                         Year-End Value of the S&P 500

                                  Closing                             Closing
Year                              Value     Year                        Value
1947.....................    15.30         1973...................      97.55
1948.....................    15.20         1974...................      68.56
1949.....................    16.76         1975...................      90.19
1950.....................    20.41         1976...................     107.46
1951.....................    23.77         1977...................      95.10
1952.....................    26.57         1978...................      96.11
1953.....................    24.81         1979...................     107.94
1954.....................    35.98         1980...................      35.76
1955.....................    45.48         1981...................     122.55
1956.....................    46.67         1982...................     140.64
1957.....................    39.99         1983...................     164.93
1958.....................    55.21         1984...................     167.24
1959.....................    59.89         1985...................     211.28
1960.....................    58.11         1986...................     242.17
1961.....................    71.55         1987...................     247.08
1962.....................    63.10         1988...................     277.72
1963.....................    75.02         1989...................     353.40
1964.....................    84.75         1990...................     330.22
1965.....................    92.43         1991...................     417.09
1966.....................    80.33         1992...................     435.71
1967.....................    96.47         1993...................     466.45
1968.....................   103.86         1994...................     459.27
1969.....................    92.06         1995...................     615.93
1970.....................    92.15         1996...................     740.74
1971.....................   102.09         1997...................     970.43
1972.....................   118.05         1998...................   1,229.23
                                        
         The following  table sets forth the value of the S&P 500 Index at the
end of each month,  in the period from  January 1990  through  February  1999.
These  historical data on the S&P 500 Index are not necessarily  indicative of
the  future  performance  of the S&P 500  Index or what the value of the MITTS
Securities may be. Any historical upward or downward trend in the value of the
S&P 500 Index during any period set forth below is not any indication that the
S&P 500  Index is more or less  likely to  increase  or  decrease  at any time
during the term of the MITTS Securities.

<TABLE>
<CAPTION>

<S>                  <C>       <C>       <C>        <C>        <C>       <C>      <C>       <C>      <C>         <C>
                      1990      1991      1992       1993       1994     1995      1996      1997      1998       1999
January.........     329.08    343.93    408.78     438.78     481.61    470.42   636.02    786.16     980.28    1,279.64
February........     331.89    367.07    412.70     443.38     467.14    487.39   640.43    790.82   1,049.34    1,238.33
March...........     339.94    375.22    403.69     451.67     445/77    500.71   645.50    757.12   1,101.75       --
April...........     330.80    375.34    414.95     440.19     450.91    514.71   654.17    801.34   1,111.75       --
May.............     361.23    389.83    415.35     450.19     456.51    533.40   669.12    848.28   1,090.82       --
June............     358.02    371.16    408.14     450.53     444.27    544.75   670.63    885.14   1,133.84       --
July............     356.15    387.81    424.22     448.13     458.26    562.06   639.95    954.29   1,120.67       --
August..........     322.56    395.43    414.03     463.56     475.50    561.88   651.99    899.47     957.28       --
September.......     306.05    387.86    417.80     458.93     462.71    584.41   687.31    947.28   1,017.01       --
October.........     304.00    392.45    418.68     467.83     472.35    581.50   705.27    914.62   1,098.67       --
November........     322.22    375.22    431.35     461.79     453.69    605.37   757.02    955.40   1,163.63       --
December........     330.22    417.09    435.71     466.45     459.27    615.93   740.74    970.43   1,229.23       --
</TABLE>

License Agreement

         Standard  &  Poor's  does  not  guarantee  the  accuracy  and/or  the
completeness of the S&P 500 Index or any data included in that index. Standard
& Poor's makes no warranty,  express or implied,  as to results to be obtained
by ML&Co.,  MLPF&S,  holders of the MITTS  Securities,  or any other person or
entity  from  the use of the S&P 500  Index or any data  included  therein  in
connection with the rights licensed under the license  agreement  described in
this prospectus  supplemement or for any other use. Standard & Poor's makes no
express or implied  warranties,  and hereby expressly disclaims all warranties
of merchantability or fitness for a particular purpose with respect to the S&P
500 Index or any data included therein.  Without limiting any of the above, in
no event shall Standard & Poor's have any liability for any special, punitive,
indirect or consequential damage,  including lost profits, even if notified of
the possibility of these damages.

         Standard & Poor's and  Merrill  Lynch  Capital  Services,  Inc.  have
entered into a non-exclusive  license  agreement  providing for the license to
Merrill Lynch Capital  Services,  Inc., in exchange for a fee, of the right to
use  indices  owned and  published  by  Standard & Poor's in  connection  with
certain  securities,   including  the  MITTS  Securities,  and  ML&Co.  is  an
authorized sublicensee under that agreement.

         The license  agreement  between  Standard & Poor's and Merrill  Lynch
Capital Services,  Inc. provides that the following language must be stated in
this prospectus:

         "The MITTS Securities are not sponsored,  endorsed,  sold or promoted
by Standard & Poor's.  Standard & Poor's makes no  representation or warranty,
express or implied,  to the holders of the MITTS  Securities  or any member of
the public regarding the advisability of investing in securities  generally or
in the MITTS  Securities  particularly  or the ability of the S&P 500 Index to
track general stock market performance. Standard & Poor's only relationship to
Merrill  Lynch  Capital  Services,  Inc. and ML&Co.  (other than  transactions
entered into in the ordinary  course of business) is the  licensing of certain
servicemarks  and trade  names of  Standard  & Poor's and of the S&P 500 Index
which is  determined,  composed and  calculated  by Standard & Poor's  without
regard to ML&Co. or the MITTS Securities.  Standard & Poor's has no obligation
to take the needs of  ML&Co.  or the  holders  of the  MITTS  Securities  into
consideration  in  determining,  composing or  calculating  the S&P 500 Index.
Standard  & Poor's  is not  responsible  for and has not  participated  in the
determination  of the  timing of the sale of the MITTS  Securities,  prices at
which the MITTS  Securities  are to initially be sold,  or  quantities  of the
MITTS  Securities to be issued or in the  determination  or calculation of the
equation by which the MITTS Securities are to be converted into cash. Standard
& Poor's has no obligation or liability in connection with the administration,
marketing or trading of the MITTS Securities."

         All disclosures  contained in this prospectus regarding the above S&P
500 Index,  including its make-up,  method of  calculation  and changes in its
components,  are  derived  from  publicly  available  information  prepared by
Standard & Poor's.  ML&Co. and MLPF&S do not assume any responsibility for the
accuracy or completeness of this information.

                                  OTHER TERMS

         ML&Co.  issued  the  MITTS  Securities  as a series  of  senior  debt
securities under the 1983 Indenture, dated as of April 1, 1983, as amended and
restated,  between ML&Co. and The Chase Manhattan Bank, as trustee.  A copy of
the 1983  Indenture  is  filed as an  exhibit  to the  registration  statement
relating  to the MITTS  Securities  of which this  prospectus  is a part.  The
following  summaries of the material  provisions of the 1983 Indenture are not
complete and are subject to, and qualified in their  entirety by reference to,
all provisions of the 1983  Indenture,  including the  definitions of terms in
the 1983 Indenture.

         ML&Co.  may issue series of senior debt  securities from time to time
under the 1983 Indenture, without limitation as to aggregate principal amount,
in one or more  series  and upon  terms as  ML&Co.  may  establish  under  the
provisions of the 1983 Indenture.

         The 1983  Indenture  and the MITTS  Securities  are  governed  by and
construed in accordance with the laws of the State of New York.

         ML&Co.  may issue senior debt  securities  with terms  different from
those of senior debt securities previously issued, and issue additional senior
debt securities of a previously issued series of senior debt securities.

         The senior debt  securities  are  unsecured and rank equally with all
other unsecured and  unsubordinated  indebtedness of ML&Co.  However,  because
ML&Co. is a holding company, the rights of ML&Co. and its creditors, including
the holders of senior debt  securities,  to participate in any distribution of
the  assets  of any  subsidiary  upon its  liquidation  or  reorganization  or
otherwise  are  necessarily  subject to the prior  claims of  creditors of the
subsidiary,  except to the extent that a bankruptcy court may recognize claims
of ML&Co.  itself as a creditor of the  subsidiary.  In  addition,  dividends,
loans and advances from certain subsidiaries,  including MLPF&S, to ML&Co. are
restricted by net capital requirements under the Exchange Act, and under rules
of exchanges and other regulatory bodies.

Limitations Upon Liens

         ML&Co. may not, and may not permit any majority-owned  subsidiary to,
create,  assume,  incur or permit to exist any indebtedness for borrowed money
secured  by a  pledge,  lien or other  encumbrance,  other  than  those  liens
specifically  permitted  by the 1983  Indenture,  on the  Voting  Stock  owned
directly or indirectly by ML&Co. of any majority-owned subsidiary,  other than
a  majority-owned  subsidiary  which,  at the  time of the  incurrence  of the
secured  indebtedness,  has a net worth of less than  $3,000,000,  unless  the
outstanding  senior debt  securities are secured  equally and ratably with the
secured indebtedness.

         "Voting  Stock" is defined in the 1983  Indenture as the stock of the
class or classes having general voting power under ordinary  circumstances  to
elect at least a majority of the board of directors, managers or trustees of a
corporation provided that, for the purposes of the 1983 Indenture,  stock that
carries only the right to vote  conditionally on the occurrence of an event is
not considered voting stock whether or not the event has happened.

Limitation on Disposition of Voting Stock of, and Merger and Sale of Assets by,
MLPF&S

         ML&Co.  may not sell,  transfer  or  otherwise  dispose of any Voting
Stock of MLPF&S or permit MLPF&S to issue, sell or otherwise dispose of any of
its Voting Stock, unless, after giving effect to any such transaction,  MLPF&S
remains a Controlled Subsidiary.

         "Controlled  Subsidiary"  is defined in the 1983  Indenture to mean a
corporation  more than 80% of the outstanding  shares of Voting Stock of which
are owned directly or indirectly by ML&Co.

         In addition, ML&Co. may not permit MLPF&S to:

     o    merge or consolidate,  unless the surviving  company is a Controlled
          Subsidiary, or

     o    convey or transfer its  properties  and assets  substantially  as an
          entirety, except to one or more Controlled Subsidiaries.

Merger and Consolidation

         ML&Co.  may  consolidate or merge with or into any other  corporation
and ML&Co. may sell, lease or convey all or substantially all of its assets to
any corporation, provided that:

     o    the resulting  corporation,  if other than ML&Co.,  is a corporation
          organized  and  existing  under  the laws of the  United  States  of
          America or any U.S.  state and assumes  all of ML&Co.'s  obligations
          to:

          o    pay any amounts due and payable or deliverable  with respect to
               all the senior debt securities; and

          o    perform and observe all of ML&Co.'s  obligations under the 1983
               Indenture, and

     o    ML&Co.  or the  successor  corporation,  as the case may be, is not,
          immediately  after any consolidation or merger, in default under the
          1983 Indenture.

Modification and Waiver

         ML&Co.  and the trustee may modify and amend the 1983  Indenture with
the  consent  of  holders  of at least  66 2/3% in  principal  amount  of each
outstanding series of senior debt securities  affected.  However,  without the
consent of each holder of any outstanding  senior debt security  affected,  no
amendment or modification to the 1983 Indenture may:

     o    change  the  stated  maturity  date  of  the  principal  of,  or any
          installment of interest or Additional Amounts payable on, any senior
          debt security or any premium  payable on  redemption,  or change the
          redemption price;

     o    reduce  the  principal  amount  of, or the  interest  or  Additional
          Amounts payable on, any senior debt security or reduce the amount of
          principal  which could be declared due and payable before the stated
          maturity date;

     o    change the place or  currency  of any  payment of  principal  or any
          premium,  interest or Additional  Amounts payable on any senior debt
          security;

     o    impair  the  right  to  institute  suit for the  enforcement  of any
          payment on or with respect to any senior debt security;

     o    reduce the percentage in principal amount of the outstanding  senior
          debt  securities  of any  series,  the  consent of whose  holders is
          required to modify or amend the 1983 Indenture; or

     o    modify  the  foregoing  requirements  or reduce  the  percentage  of
          outstanding  senior  debt  securities  necessary  to waive  any past
          default to less than a majority.

         No  modification or amendment of ML&Co.'s  Subordinated  Indenture or
any Subsequent Indenture for subordinated debt securities may adversely affect
the rights of any holder of ML&Co.'s senior  indebtedness  without the consent
of each  holder  affected.  The  holders of at least a majority  in  principal
amount of outstanding  senior debt  securities of any series may, with respect
to that  series,  waive  past  defaults  under  the 1983  Indenture  and waive
compliance  by  ML&Co.  with  provisions  in the  1983  Indenture,  except  as
described under "--Events of Default".

Events of Default

         Each of the  following  will be Events of  Default  with  respect  to
senior debt securities of any series:

     o    default in the payment of any interest or Additional Amounts payable
          when due and continuing for 30 days;

     o    default in the payment of any principal or premium when due;

     o    default in the deposit of any sinking fund payment, when due;

     o    default  in  the  performance  of any  other  obligation  of  ML&Co.
          contained in the 1983 Indenture for the benefit of that series or in
          the senior debt  securities of that series,  continuing  for 60 days
          after written notice as provided in the 1983 Indenture;

     o    specified  events in  bankruptcy,  insolvency or  reorganization  of
          ML&Co.; and

     o    any other  Event of Default  provided  with  respect to senior  debt
          securities of that series which are not  inconsistent  with the 1983
          Indenture.

         If an Event of  Default  occurs and is  continuing  for any series of
senior debt securities,  other than as a result of the bankruptcy,  insolvency
or  reorganization  of ML&Co.,  the  trustee or the holders of at least 25% in
principal amount of the outstanding  senior debt securities of that series may
declare all  amounts,  or any lesser  amount  provided  for in the senior debt
securities,  due and payable or deliverable  immediately.  At any time after a
declaration  of  acceleration  has been  made  with  respect  to  senior  debt
securities  of any series but before the  trustee  has  obtained a judgment or
decree for payment of money,  the holders of a majority in principal amount of
the  outstanding  senior  debt  securities  of that  series  may  rescind  any
declaration of acceleration and its  consequences,  if all payments due, other
than those due as a result of  acceleration,  have been made and all Events of
Default have been remedied or waived.

         The  holders of a majority in  principal  amount or  aggregate  issue
price of the  outstanding  senior debt securities of that series may waive any
Event of Default with respect to that series, except a default:

     o    in the payment of any amounts due and payable or  deliverable  under
          the debt securities of that series; or

     o    in respect of an obligation or provision of the 1983 Indenture which
          cannot be  modified  under the terms of that  Indenture  without the
          consent of each holder of each  outstanding  security of each series
          of senior debt securities affected.

         The  holders of a majority  in  principal  amount of the  outstanding
senior debt  securities  of a series may direct the time,  method and place of
conducting  any  proceeding  for  any  remedy  available  to  the  trustee  or
exercising  any trust or power  conferred on the trustee with respect to those
senior debt  securities,  provided that any direction shall not be in conflict
with any rule of law or the 1983 Indenture.  Before proceeding to exercise any
right or power under the 1983  Indenture at the direction of the holders,  the
trustee shall be entitled to receive from the holders  reasonable  security or
indemnification  against the costs,  expenses and  liabilities  which might be
incurred by it in complying with any direction.

         The MITTS  Securities  and other  series  of senior  debt  securities
issued under the 1983  Indenture do not have the benefit of any  cross-default
provisions with other indebtedness of ML&Co.

         ML&Co. is required to furnish to the trustee  annually a statement as
to  the  fulfillment  by  ML&Co.  of all of its  obligations  under  the  1983
Indenture. 

                          PROJECTED PAYMENT SCHEDULE

         Solely  for  purposes  of  applying  the  final  Treasury  Department
Regulations  (the "Final  Regulations")  concerning  the proper  United States
Federal  income tax treatment of contingent  payment debt  instruments  to the
MITTS  Securities,  ML&Co. has determined that the projected  payment schedule
for the MITTS  Securities  will consist of payment on the maturity date of the
principal amount thereof and a projected Supplemental  Redemption Amount equal
to $5.2665 per unit (the "Projected  Supplemental  Redemption  Amount").  This
represents an estimated yield on the MITTS Securities equal to 6.13% per annum
(compounded semiannually).

         The  projected   payment  schedule   (including  both  the  Projected
Supplemental   Redemption   Amount  and  the  estimated  yield  on  the  MITTS
Securities)  has been  determined  solely for United States federal income tax
purposes  (i.e.,  for purposes of applying the Final  Regulations to the MITTS
Securities),  and is neither a  prediction  nor a guarantee of what the actual
Supplemental  Redemption  Amount  will  be,  or that the  actual  Supplemental
Redemption Amount will even exceed zero.

         The  following  table sets forth the amount of interest that would be
deemed to have  accrued  with  respect  to each  unit of the MITTS  Securities
during each accrual period over an assumed term of  approximately  seven years
for the MITTS Securities based upon a projected payment schedule for the MITTS
Securities,  including both the Projected  Supplemental  Redemption Amount and
the  estimated  yield equal to 6.13% per annum,  compounded  semiannually,  as
determined by ML&Co. for purposes of illustrating the application of the Final
Regulations to the MITTS Securities:

<TABLE>
<CAPTION>

                                                                                           Total Interest Deemed to
                                                                 Interest Deemed          Have Accrued on the MITTS
                                                                to Accrue During               Securities as of
                                                                 Accrual Period             End of Accrual Period
                     Accrual Period                                (per unit)                    (per unit

<S>                                                                  <C>                           <C> 
March 26, 1999 through September 27, 1999                            $0.3108                       $0.3108
September 28, 1999 through March 27, 2000                            $0.3160                       $0.6268
March 28, 2000 through September 27, 2000                            $0.3257                       $0.9525
September 28, 2000, through March 27, 2001                           $0.3357                       $1.2882
March 28, 2001 through September 27, 2001                            $0.3460                       $1.6342
September 28, 2001, through March 27, 2002                           $0.3566                       $1.9908
March 28, 2002 through September 27, 2002                            $0.3675                       $2.3583
September 28, 2002, through March 27, 2003                           $0.3788                       $2.7371
March 28, 2003 through September 27, 2003                            $0.3904                       $3.1275
September 28, 2003, through March 27, 2004                           $0.4023                       $3.5298
March 28, 2004 through September 27, 2004                            $0.4147                       $3.9445
September 28, 2004, through March 27, 2005                           $0.4274                       $4.3719
March 28, 2005 through September 27, 2005                            $0.4405                       $4.8124
September 28, 2005, through March 27, 2006                           $0.4541                       $5.2665
</TABLE>
Projected Supplemental Redemption Amount = $5.2665 per unit.

         All  prospective  investors in the MITTS  Securities  should  consult
their own tax advisors  concerning the application of the Final Regulations to
their  investment in the MITTS  Securities.  Investors in the MITTS Securities
may also obtain the projected  payment  schedule,  as determined by ML&Co. for
purposes of the application of the Final  Regulations to the MITTS Securities,
by submitting a written  request for such  information to Merrill Lynch & Co.,
Inc.,  Attn:  Darryl W. Colletti,  Corporate  Secretary's  Office,  100 Church
Street, 12th Floor, New York, New York 10080-6512.

                      WHERE YOU CAN FIND MORE INFORMATION

         We file reports, proxy statements and other information with the SEC.
Our SEC filings are also  available over the Internet at the SEC's web site at
http://www.sec.gov.  You may  also  read  and  copy  any  document  we file by
visiting the SEC's public  reference rooms in Washington,  D.C., New York, New
York, and Chicago, Illinois. Please call the SEC at 1-800-SEC-0330 for further
information  about the public  reference  rooms.  You may also inspect our SEC
reports and other  information at the New York Stock Exchange,  Inc., 20 Broad
Street, New York, New York 10005.

         We have  filed a  registration  statement  on Form  S-3  with the SEC
covering the MITTS Securities and other securities. For further information on
ML&Co.  and  the  MITTS  Securities,  you  should  refer  to our  registration
statement and its exhibits.  This prospectus summarizes material provisions of
contracts and other documents that we refer you to. Because the prospectus may
not contain all the information that you may find important, you should review
the full text of these  documents.  We have included copies of these documents
as exhibits to our registration statement of which this prospectus is a part.

               INCORPORATION OF INFORMATION WE FILE WITH THE SEC

         The SEC allows us to incorporate by reference the information we file
with them, which means:

     o    incorporated documents are considered part of the prospectus;

     o    we can disclose  important  information  to you by referring  you to
          those documents; and

     o    information that we file with the SEC will automatically  update and
          supersede this incorporated information.

         We  incorporate  by reference the  documents  listed below which were
filed with the SEC under the Exchange Act:

     o    annual report on Form 10-K for the year ended December 25, 1998; and

     o    current  reports on Form 8-K dated  December 28,  1998,  January 19,
          1999,  February  17, 1999,  February  18,  1999,  February 22, 1999,
          February 23, 1999 and March 26, 1999.

         We also incorporate by reference each of the following documents that
we will  file  with the SEC  after  the  date of this  prospectus  until  this
offering is completed or after the date of this initial registration statement
and before the effectiveness of the registration statement:

     o    reports filed under Sections 13(a) and (c) of the Exchange Act;

     o    definitive proxy or information statements filed under Section 14 of
          the Exchange Act in  connection  with any  subsequent  stockholders'
          meeting; and

     o    any reports filed under Section 15(d) of the Exchange Act.

         You should rely only on  information  contained  or  incorporated  by
reference in this prospectus.  We have not, and MLPF&S has not, authorized any
other person to provide you with different information. If anyone provides you
with different or inconsistent information,  you should not rely on it. We are
not,  and  MLPF&S is not,  making  an offer to sell  these  securities  in any
jurisdiction where the offer or sale is not permitted.

         You should assume that the  information  appearing in this prospectus
is accurate as of the date of this  prospectus  only. Our business,  financial
condition and results of operations may have changed since that date.

         You may  request a copy of any filings  referred to above  (excluding
exhibits), at no cost, by contacting us at the following address: Mr. Lawrence
M. Egan, Jr.,  Corporate  Secretary's  Office,  Merrill Lynch & Co., Inc., 100
Church Street, New York, New York 10080-6512, Telephone: (212) 602-8435.

                             PLAN OF DISTRIBUTION

         This  prospectus has been prepared in connection with secondary sales
of the MITTS  Securities  and is to be used by MLPF&S when  making  offers and
sales related to market-making transactions in the MITTS Securities.

         MLPF&S  may  act  as  principal  or  agent  in  these   market-making
transactions.

         The MITTS  Securities  may be offered on the NYSE or off the exchange
in negotiated transactions or otherwise.

         The  distribution  of  the  MITTS  Securities  will  conform  to  the
requirements set forth in the applicable  sections of Rule 2720 of the Conduct
Rules of the NASD.

<PAGE>

                                    EXPERTS

         The  consolidated   financial  statements  and  the  related  financial
statement schedule  incorporated in this prospectus by reference from the Annual
Report on Form 10-K of Merrill  Lynch & Co.,  Inc.  and  subsidiaries  have been
audited  by  Deloitte & Touche  LLP,  independent  auditors,  as stated in their
reports  (which  express  an  unqualified   opinion  and  which  report  on  the
consolidated  financial  statements  includes an  explanatory  paragraph for the
change in  accounting  method  for  certain  internal-use  software  development
costs),   which  are  incorporated  herein  by  reference,   and  have  been  so
incorporated  in  reliance  upon the  reports  of such  firm  given  upon  their
authority as experts in accounting and auditing.

<PAGE>

                                   PART II
                     INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14. Other Expenses of Issuance and Distribution.

         The  following  table sets forth all  expenses in  connection  with the
issuance and  distribution of the securities being  registered.  All the amounts
shown are estimates, except the registration fee and the NASD fee.

Registration fee.......................................        $4,170,000
Fees and expenses of accountants.......................           400,000
Fees and expenses of counsel...........................         1,500,000
NASD fee...............................................            30,500
Fees and expenses of Trustees and Warrant Agents.......           800,000
Printing expenses......................................           800,000
Printing and engraving of securities...................           100,000
Rating agency fees.....................................           500,000
Stock exchange listing fees............................           300,000
Miscellaneous..........................................             4,500
                                                                ---------
        Total..........................................        $8,605,000
                                                               ==========

Item 15. Indemnification of Directors and Officers.

         Section 145 of the General Corporation Law of the State of Delaware, as
amended,  provides that under certain  circumstances a corporation may indemnify
any  person  who was or is a party  or is  threatened  to be made a party to any
threatened,  pending or completed  action,  suit or  proceeding,  whether civil,
criminal,  administrative  or  investigative,  by  reason  of the fact that such
person is or was a director, officer, employee or agent of the corporation or is
or was  serving  at its  request in such  capacity  in  another  corporation  or
business association,  against expenses (including attorneys' fees),  judgments,
fines and amounts paid in settlement  actually and  reasonably  incurred by such
person in connection  with such action,  suit or proceeding if such person acted
in good faith and in a manner  such person  reasonably  believed to be in or not
opposed  to the best  interests  of the  corporation  and,  with  respect to any
criminal action or proceeding,  has no reasonable cause to believe such person's
conduct was unlawful.

         Article XIII, Section 2 of the Restated Certificate of Incorporation of
the Company provides in effect that, subject to certain limited exceptions,  the
Company shall  indemnify its directors and officers to the extent  authorized or
permitted by the General Corporation Law of the State of Delaware.

         Each of the underwriting and distribution  agreements and forms thereof
filed  as  Exhibit  1  provides  for the  indemnification  of the  Company,  its
controlling   persons,  its  directors  and  certain  of  its  officers  by  the
Underwriters  against  certain  liabilities,  including  liabilities  under  the
Securities Act of 1933, as amended (the "Act").

         The directors and officers of the Company are insured under policies of
insurance  maintained  by the  Company,  subject to the limits of the  policies,
against  certain  losses  arising  from any claim made against them by reason of
being or having been such  directors or officers.  In addition,  the Company has
entered into contracts with all of its directors  providing for  indemnification
of such  persons by the Company to the full extent  authorized  or  permitted by
law, subject to certain limited exceptions.

         The Declaration of Trust of the Trust  provides,  to the fullest extent
permitted  by  applicable  law,  for  indemnity  of the  Regular  Trustees,  any
Affiliate of any Regular Trustee, any officer,  director,  shareholder,  member,
partner,  employees,  representative  or agent of any  Regular  Trustee,  or any
officer, director, shareholder member, partner, employee representative or agent
of the Trust or its Affiliates (each a "Company Indemnified  Person"),  from and
against  losses and  expenses  incurred by such  Company  Indemnified  Person in
connection with any action, suit or proceeding, except that if such action, suit
or  proceedings  is by or in the  right of the  Trust,  the  indemnity  shall be
limited to expenses of such Company Indemnified Person.

         The Limited Partnership  Agreement of the Partnership  provides that to
the fullest extent permitted by applicable law, the Partnership  shall indemnify
and hold harmless each of the General Partner,  and any Special  Representative,
any Affiliate of the General Partner or any Special Representative, any officer,
director, shareholder,  member, partner, employee representative or agent of the
General  Partner  or any  Special  Representative,  or any of  their  respective
Affiliates, or any employee of agent of the Partnership or its Affiliates (each,
a "Partnership  Indemnified Person"), from and against any loss, damage or claim
incurred by such Partnership Indemnified Person by reason of any act or omission
performed  or omitted by such  Partnership  Indemnified  Person in good faith on
behalf of the Partnership and in a manner such  Partnership  Indemnified  Person
reasonably  believed  to be within  the  scope of  authority  conferred  on such
Partnership Indemnified Person by the Limited Partnership Agreement, except that
no Partnership Indemnified Person shall be entitled to be indemnified in respect
of any loss, damage or claim incurred by such Partnership  Indemnified Person by
reason of gross  negligence or willful  misconduct  with respect to such acts or
omissions.  The Limited Partnership Agreement also provides that, to the fullest
extent permitted by applicable law, expenses  (including legal fees) incurred by
a Partnership Indemnified Person in defending any claim, demand, action, suit or
proceeding shall, from time to time, be advanced by the Partnership prior to the
final disposition of such claim, demand, action, suit or proceeding upon receipt
by the  Partnership  of  any  undertaking  by or on  behalf  of the  Partnership
Indemnified  Person  to repay  such  amount if it shall be  determined  that the
Partnership  Indemnified  Person is not entitled to be indemnified as authorized
in the Limited Partnership Agreement.

         The Regular  Trustees of the Trust are  covered by  insurance  policies
indemnifying them against certain  liabilities,  including  certain  liabilities
arising  under the Act,  which might be incurred  by them in such  capacity  and
against  which they  cannot be  indemnified  by the  Company  or the Trust.  Any
agents, dealers or underwriters who execute the agreements filed as Exhibit 1 of
this  Registration   Statement  with  respect  to  Trust  Originated   Preferred
SecuritiesSM will agree to indemnify the Company's  directors and their officers
and the  Trustees  who signed the  Registration  Statement  with respect to such
securities against certain liabilities that may arise under the Act with respect
to information furnished to the Company or the Trust by or on behalf of any such
indemnifying party.

Item 16. List of Exhibits.
<TABLE>
<S>              <C>                                                                  <C>
 Exhibit                                                                                    Incorporation by Reference
 Number                                       Description                                      to Filings Indicated
- --------                                     -------------                                  ------------------------
 1(a)            Form of Underwriting Agreement for Debt Securities and Debt,          Exhibit 1(a) to Company's Registration
                 Currency and Index Warrants, including forms of Terms Agreement.      Statement on Form S-3 (No. 333-59997).

 1(b)            Form of Distribution Agreement, including form of Terms Agreement,    Exhibit 1(b) to Company's Registration
                 relating to Medium-Term Notes, Series B (a series of Senior Debt      Statement on Form S-3 (No. 33-51489).
                 Securities).

 1(c)            Form of Underwriting Agreement for Preferred Stock                    Exhibit  1(c)  to  Company's Registration
                 and  Common   Stock Warrants, Preferred Stock, Depositary             Statement  on Form S-3 (No. 333-59997).
                 Shares and  Common  Stock.

 1(d)            Form of Purchase Agreement relating to the Trust Preferred            Exhibit 1.1 to Company's Registration
                   Securities.                                                         Statement on Form S-3 (No. 333-42859).

 4(a)(i)           Senior  Indenture,  dated as of April 1, 1983,  as                  Exhibit  99(c) to Company's Registration
                   amended and  restated (the  "1983   Senior   Indenture"),           Statement  on Form 8-A dated July 20, 1992.
                   between  the Company  and The Chase Manhattan Bank,
                   formerly known as Chemical Bank (successor by
                   merger to Manufacturers Hanover Trust Company)

 4(a)(ii)          Senior Indenture, dated as of October 1, 1993 (the                  Exhibit 4 to Company's Current Report on
                   "1993 Senior Indenture"),  between the Company and the Chase        Form 8-K dated October 7, 1993.
                   Manhattan Bank (successor by merger to The Chase Manhattan
                   Bank, N.A.).

 4(a)(iii)         Form of initial Subsequent Indenture with respect to Senior 
                   Debt Securities.*

 4(a)(iv)          Form of Subsequent Indenture with respect to Senior Debt 
                   Securities.*

 4(b)(i)           Supplemental   Indenture   to  the   1983   Senior                  Exhibit  99(c)  to Company's  Registration
                   Indenture,   dated  March  15, 1990, between the Company            Statement on Form 8-A dated July 20, 1992.
                   and The Chase Manhattan Bank,  formerly  
                   known as Chemical Bank (successor by merger to Manufacturers
                   Hanover Trust Company).

 4(b)(ii)          Eighth  Supplemental  Indenture to the 1983 Senior                  Exhibit 4(b) to  Post-Effective Amendment
                   Indenture,  dated  March 1, 1996,  between the Company and          No.  1 to  Company's Registration Statement 
                   The  Chase  Manhattan  Bank,  formerly   known  as                  on Form S-3 (No. 33-65135).
                   Chemical  Bank  (successor  by  merger to 
                   Manufacturers Hanover Trust Company).

 4(b)(iii)         Ninth  Supplemental  Indenture  to the 1983 Senior                  Exhibit 4(b) to  Post-Effective Amendment 
                   Indenture,  dated  June 1, 1996,  between  the Company and          No.  4 to  Company's Registration Statement
                   The  Chase  Manhattan  Bank, formerly   known  as                   on Form S-3 (No. 33-65135).
                   Chemical  Bank  (successor  by  merger to 
                   Manufacturers Hanover Trust Company).
   
_____________
*  Previously filed.
    

 4(b)(iv)          Tenth  Supplemental  Indenture  to the 1983 Senior                  Exhibit 4(b) to  Post-Effective Amendment
                   Indenture,  dated    July 1, 1996,  between  the Company and        No.  5 to  Company's Registration Statement
                   The  Chase  Manhattan  Bank,  formerly   known  as                  on Form S-3 (No. 33-65135).
                   Chemical  Bank  (successor  by  merger to 
                   Manufacturers Hanover Trust Company)

 4(b)(v)           Supplemental   Indenture   to  the   1983   Senior                  Exhibit  4(b)(ii) to  Company' Registrations
                   Indenture,  dated October 25, 1993, between the Company             on Form S-3 (No. 33-61559).
                   and The Chase Manhattan Bank Statement 
                   (successor by merger to The Chase Manhattan Bank, N.A.).

 4(b)(vi)          Twelfth Supplemental  Indenture to the 1983 Senior                  Exhibit 4(a) to Company's Current report on
                   Indenture  dated  as of September 1, 1998 between the               Form 8-K dated October 21, 1998.
                   Company  and The  Chase  Manhattan  
                   Bank,  formerly known as Chemical Bank  (successor
                   by merger to Manufacturers Hanover Trust Company).

 4(b)(vii)         First  Supplemental  Indenture  to the 1993 Senior                  Exhibit 4(a) to Company's Current Report on 
                   Indenture,  dated  as of June 1,  1998,  between  the
                   Company  and The  Chase  Manhattan  Bank  Form 8-K
                   dated July 2, 1998.
                   (successor by merger to The Chase Manhattan Bank N.A.).

 4(c)(i)           Form of Subordinated Indenture between the Company and The          Exhibit 4.7 to Company's Registration
                   Chase Manhattan Bank.                                               Statement on Form S-3 (No. 333-16603).

 4(c)(ii)          Form of Subsequent Indentures with respect to Subordinated
                   Debt Securities.*
   
 4(d)              Form of 6% Note due February 17, 2009.                              Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated February 17, 1999.
    
 4(e)              Form of 6 3/8% Note due March 30, 1999.                             Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated March 30, 1994.

 4(f)              Form of Equity Participation Security with Minimum Return           Exhibit 4(ooo) to Amendment No. 1 to
                   Protection due June 30, 1999.                                       Company's Registration Statement on Form S-3
                                                                                       (No. 33-54218).

 4(g)              Form of European Portfolio Market Index Target-Term Security        Exhibit 4 to Company's Current Report on
                   due June 30, 1999.                                                  Form 8-K dated December 30, 1993.

 4(h)              Form of 81/4% Note due November 15, 1999.                           Exhibit 4(cc) to Company's Registration
                                                                                       Statement on Form S-3 (No. 33-45327).

 4(i)              Form of Stock Market Annual Reset Term Note due December 31,        Exhibit 4 to Company's Current Report on
                   1999 (Series A).                                                    Form 8-K dated April 29, 1993.

 4(j)              Form of Japan Index Equity Participation  Security                  Exhibit 4 to Company's Current Report on
                   with Minimum Return  Protection  due January 31, 2000.              Form  8-K dated January 27, 1994.

 4(k)              Form of 8 3/8% Note due February 9, 2000.                           Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated February 9, 1995.

 4(l)              Form of 6.70% Note due August 1, 2000.                              Exhibit 4 to Company's Report on Form 8-K
                                                                                       dated August 1, 1995.

 4(m)              Form of AMEX Oil Index Stock Market Annual Reset Term Note          Exhibit 4 to Company's Current Report on
                   due December 29, 2000.                                              Form 8-K dated March 31, 1994.

 4(n)              Form of 8% Note due February 1, 2002.                               Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated February 4, 1992.
   
_____________
*  Previously filed.
    

 4(o)              Form of Step-Up Note due April 30, 2002.                            Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated April 30, 1992.

 4(p)              Form of Step-Up Note due May 6, 2002.                               Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated May 6, 1992.

 4(q)              Form of 7 3/8% Note due August 17, 2002.                            Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated August 17, 1992.

 4(r)              Form  of  Major  8  European  Index  Market  Index                  Exhibit 4 to  Company's Current Report on
                   Target-Term  Security  due  August 30, 2002.                        Form 8-K dated August 1, 1997.

 4(s)              Form of 6.64% Note due September 19, 2002.                          Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated September 19, 1995.

 4(t)              Form of 8.30% Note due November 1, 2002.                            Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated May 4, 1992.

 4(u)              Form of Major 11 European Market Index Target-Term Security         Exhibit 4 to Company's Current Report on
                   due December 6, 2002.                                               Form 8-K dated November 26, 1997.

 4(v)              Form of 6 7/8% Note due March 1, 2003.                              Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated March 1, 1993.

 4(w)              Form of 7.05% Note due April 15, 2003.                              Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated April 15, 1993.

 4(x)              Form of 6.55% Note due August 1, 2004.                              Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated August 1, 1997.

 4(y)              Form of Russell 2000 Index Market Index Target-Term Security        Exhibit 4 to Company's Current Report on
                   due September 30, 2004.                                             Form 8-K dated September 29, 1997.

 4(z)              Form of 61/4% Note due January 15, 2006                             Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated January 20, 1994.

 4(aa)             Form of 6 3/8% Note due September 8, 2006.                          Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated September 8, 1993.

 4(bb)             Form of 8% Note due June 1, 2007.                                   Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated June 1, 1992.

 4(cc)             Form of S&P 500  Inflation  Adjusted  Market Index                  Exhibit  4  to  Company's Current Report on
                   Target-Term   Security due September 24, 2007.                      Form 8-K dated September 24, 1997.

 4(dd)             Form of 7% Note due April 27, 2008.                                 Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated April 27, 1993.

 4(ee)             Form of 61/4% Note due October 15, 2008.                            Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated October 15, 1993.

 4(ff)             Form of 8.40% Note due November 1, 2019.                            Exhibit 4(z) to Company's Registration
                                                                                       Statement on Form S-3 (No. 33-35456).

 4(gg)             Form of Fixed Rate Medium-Term Note(without redemption              Exhibit 4(kk) to Company's Registration 
                   provisions).                                                        Statement on Form S-3 (No. 33-54218).


 4(hh)             Form of Fixed Rate Medium-Term Note (with redemption                Exhibit 4(ll) to Company's Registration
                   provisions).                                                        Statement on Form S-3 (No. 33-54218).

 4(ii)             Form  of  Fixed  Rate  Medium-Term  Note  (without                  Exhibit 4(d) to Company's Registration
                   redemption  provisions, minimum denomination $1,000).               Statement on Form S-3 (No. 33-38879).

 4(jj)             Form  of  Fixed   Rate   Medium-Term   Note  (with                  Exhibit 4(c) to Company's Registration
                   redemption  provisions, minimum   denominations $1,000).            Statement on Form S-3 (No. 33-38879).
   
 4(kk)             Form of Fixed Rate Medium-Term Note, Series B.
    
 4(ll)             Form of Federal Funds Rate Medium-Term Note.                        Exhibit 4(oo) to Company's Registration
                                                                                       Statement on Form S-3 (No. 33-54218).
   
 4(mm)             Form of Floating Rate Medium-Term Note, Series B.
    
 4(nn)             Form of Commercial Paper Rate Medium-Term Note.                     Exhibit 4(qq) to Company's Registration
                                                                                       Statement on Form S-3 (No. 33-54218).

 4(oo)            Form of Commercial Paper Index Rate Medium-Term Note.                Exhibit 4(i) to Company's Registration
                                                                                       Statement on Form S-3 (File No. 33-38879).

 4(pp)           Form of Constant Maturity Treasury Rate Indexed Medium-Term           Exhibit 4(ccc) to Company's Registration
                 Note, Series B.                                                       Statement on Form S-3 (No. 33-52647).

 4(qq)           Form of Constant Maturity Treasury Rate Indexed Medium-Term           Exhibit 4(xv) to Company's Annual Report on
                  Note II, Series B.                                                   Form 10-K for the year ended December 30,
                                                                                       1994.

 4(rr)           Form of JPY Yield Curve Flattening Medium-Term Note, Series B.        Exhibit 4(ddd) to Company's Registration
                                                                                       Statement on Form S-3 (No. 33-52647).

 4(ss)           Form of LIBOR Medium-Term Note.                                       Exhibit 4(pp) to Company's Registration
                                                                                       Statement on Form S-3 (No. 33-54218).

 4(tt)           Form of Multi-Currency Medium-Term Note, Series B.                    Exhibit 4(fff) to Company's Registration
                                                                                       Statement on Form S-3 (No. 33-52647).

 4(uu)           Form of Nine Month Renewable Floating Rate Medium-Term Note,          Exhibit 4(ix) to Company's Quarterly Report
                 Series B.                                                             on Form 10-Q for the quarter ended
                                                                                       September 24, 1993.

 4(vv)           Form of Treasury Rate Medium-Term Note.                               Exhibit 4(aaa) to Company's Registration
                                                                                       Statement on Form S-3 (No. 33-54218).

 4(ww)           Form of Collared LIBOR Medium-Term Note due February 14, 2000.        Exhibit 4(ww) to Company's Registration
                                                                                       Statement on Form S-3 (No. 33-54218).

 4(xx)           Form of Japanese Yen Swap Rate Linked Medium-Term Note,               Exhibit 4(mmm) to Company's Registration
                 Series B.                                                             Statement on Form S-3 (No. 33-52647).

 4(yy)           Form of Step-Up Medium-Term Note due May 20, 2008.                    Exhibit 4(ggg) to Amendment No. 1 to
                                                                                       Company's Registration Statement on Form S-3
                                                                                       (No. 33-54218).

 4(zz)           Form of Warrant Agreement, including form of Warrant Certificate.     Exhibit 4(aa) to Company's Registration
                                                                                       Statement on Form S-3 (No. 33-35456).

 4(aaa)          Form of Currency [Put/Call] Warrant Agreement, including form of      Exhibit 4 to Company's Registration
                 Global Currency Warrant Certificate.                                  Statement on Form S-3 (No. 33-17965).

 4(bbb)          Form of Index Warrant Agreement, including form of Global Index       Exhibit 4(kkk) to Amendment No. 1 to
                 Warrant Certificate.                                                  Company's Registration Statement on Form S-3
                                                                                       (No. 33-54218).

 4(ccc)          Form of Index Warrant Trust Indenture, including form of Global       Exhibit 4(lll) to Amendment No. 1 to
                 Index Warrant Certificate.                                            Company's Registration Statement on Form S-3
                                                                                       (No. 33-54218).
   
 4(ddd)          Form of 6 1/2% Note due April 1, 2001.                                Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated April 1, 1996.
    
 4(eee)          Form of 6% Note due January 15, 2001.                                 Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated January 17, 1996.

 4(fff)          Form of 6% Note due March 1, 2001.                                    Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated February 29, 1996.

 4(ggg)          Form of 7% Note due March 15, 2006.                                   Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated March 18, 1996.
   
 4(hhh)          Form of 7 3/8% Note due May 15, 2006.                                 Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated May 15, 1996.
    
 4(iii)          Form of 6% STRYPES due June 1, 1999.                                  Exhibit 4(c) to Company's Form 8-K/A dated
                                                                                       June 7, 1996.

   
 4(jjj)          Form of 7 1/4% STRYPES due June 15, 1999.                             Exhibit 4(c) to Post-Effective Amendment
                                                                                       No. 4 to Company's Registration Statement on
                                                                                       Form S-3 (33-65135).

 4(kkk)          Form of 6 1/4% STRYPES due July 1, 2001.                              Exhibit 4(c) to Company's Current Report on
                                                                                       Form 8-K dated July 9, 1996.
    

 4(lll)          Form of S&P 500 Market Index Target-Term Security due May 10, 2001.   Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated May 13, 1996.
   
 4(mmm)          Form of S&P 500 Market Index Target-Term Security due March 27,       Exhibit 4 to Company's Current Report on
                   2006.                                                               Form 8-K dated March 26, 1999.
    
 4(nnn)          Form of Technology Market Index Target-Term Security due August 15,   Exhibit 4(a) to Company's Current Report on
                   2001.                                                               Form 8-K dated August 12, 1996.

 4(ooo)          Form of Top Ten Yield Market Index Target-Term Security due           Exhibit 4(b) to Company's Current Report on
                   August 15, 2006.                                                    Form 8-K dated August 12, 1996.

 4(ppp)          Form of Healthcare/Biotechnology  Portfolio Market                    Exhibit 4 to Company's Current Report on 
                   Index  Target-Term  Security due October 31, 2001.                  Form 8-K dated October 30, 1996.

 4(qqq)          Form of 7% Note due January 15, 2007.                                 Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated January 13, 1997.

 4(rrr)          Form of S&P 500 Market Index Target-Term Security due September 16,   Exhibit 4 to Company's Current Report on
                   2002.                                                               Form 8-K dated March 14, 1997.

 4(sss)          Form of Nikkei 225 Market Index Target-Term Security due June 14,     Exhibit 4 to Company's Current Report on
                   2002.                                                               Form 8-K dated June 3, 1997.

 4(ttt)          Form of 6.56% Note due December 16, 2007.                             Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated December 16, 1997.
   
 4(uuu)          Form of 7 7/8% STRYPES due February 1, 2001 (Payable with Shares of   Exhibit 4(c) to Company's Current Report on
                   Common Stock of CIBER, Inc.).                                       Form 8-K dated January 30, 1998.
    
 4(vvv)          Form of Floating Rate Note due February 4, 2003.                      Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated February 4, 1998.

 4(www)          Form of 6% Note due February 12, 2003.                                Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated February 12, 1998.

 4(xxx)          Form of Oracle Corporation Indexed Callable Protected Growth          Exhibit 4 to Company's Current Report on
                   Security due March 31, 2003.                                        Form 8-K dated March 19, 1998.

 4(yyy)          Form of Telebras Indexed Callable Protected Growth Security due       Exhibit 4 to Company's Current Report on
                   May 19, 2005.                                                       Form 8-K dated May 19, 1998.

   
 4(zzz)          Form of 6 3/4% Note due June 1, 2028.                                 Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated June 3, 1998.
    

 4(aaaa)         Form of Floating Rate Note due June 24, 2003.                         Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated June 24, 1998.

 4(bbbb)         Form of S&P 500 Market Index Target-Term Security due July 1, 2005.   Exhibit 4 to Company's Current Report on
                                                                                        Form 8-K dated June 26, 1998.

 4(cccc)         Form of  Medium-Term  Notes,  Series  B, 3%  Stock                    Exhibit 4 to  Company's  Current Report on 
                   Linked  Note due June 10, 2000 (Linked to the performance           Form 8-K dated June 10, 1998.
                   of Honda Motor Co.,  Ltd. Common Stock)

 4(dddd)         Form of  Medium-Term  Notes,  Series  B, 5%  Stock                    Exhibit 4(c) to Company's  Current Report on
                 Linked Note due July 3, 2000 (Linked to the  performance              Form 8-K  dated  July 2, 1998.
                 of the  Common  Stock  of Travelers Group, Inc.).

 4(eeee)           Form of  Medium-Term  Notes,  Series  B, 7%  Stock
                   Portfolio  Linked Note due August 18, 2000 (Linked
                   to the  performance  of the Common Stock of Intuit
                   Inc., CKS Group, Inc. and CNET, Inc.).*

 4(ffff)           Form of Medium-Term Notes,  Series B, Single Stock
                   Linked  Note due  August 13,  1999  (Linked to the
                   performance   of  the   Common   Stock   of   Case
                   Corporation).*
   
 4(gggg)           Form of 5 3/4% STock Return Income DEbt Securities                  Exhibit 4 to Company's Current Report on
                   due June 1, 2000.                                                   Form 8-K dated December 1, 1998.
    
 4(hhhh)         Form of 6% Note due July 15, 2003.                                    Exhibit (4)(a) to Company's Current Report
                                                                                       on Form 8-K dated July 15, 1998.

   
 4(iiii)         Form of 6 1/2% Note due July 15, 2018.                                Exhibit (4)(b) to Company's Current Report
                                                                                       on Form 8-K dated July 15, 1998.
    

 4(jjjj)           Form of Preferred  Stock and Common Stock  Warrant                  Exhibit 4(cccc) to Company's Registration
                   Agreement, including  forms of Preferred  Stock                     Statement  on Form S-3 (File No. 333-44173).
                   and Common  Stock  Warrant Certificates.

 4(kkkk)         Form of Deposit Agreement, including form of Depositary Receipt       Exhibit 4(ffff) to Company's Registration
                   Certificate representing the Depositary Shares.                     Statement on Form S-3 (File No. 333-44173).
   
 4(llll)         Certificate of Trust of Merrill Lynch Preferred Capital Trust VI.*

_____________
*  Previously filed.
    
 4(mmmm)         Form of Amended and Restated Declaration of Trust of Merrill Lynch
                   Preferred Capital Trust VI, including form of Trust Preferred
                   Security.*
   
 4(nnnn)         Certificate of Limited Partnership of Merrill Lynch Preferred
                   Funding VI, L.P.*
    
 4(oooo)         Form of Amended and Restated Limited Partnership Agreement of
                   Merrill Lynch Preferred Funding VI, L.P.*

 4(pppp)         Form of Trust Preferred Securities Guarantee Agreement, between the
                   Company and The Chase Manhattan Bank, as guarantee trustee,
                   including form of Partnership Preferred Security.*

 4(qqqq)         Form of Partnership Preferred Securities Guarantee Agreement between
                   the Company and The Chase Manhattan Bank, as guarantee trustee.*

 4(rrrr)           Form of Subordinated  Debenture  Indenture between                  Exhibit  4 to  Registration Statement on 
                   the  Company  and The  Chase  Manhattan  Bank,  as guarantee        Form S-3 (File No. 333-16603).
                   trustee.

 4(ssss)         Form of Affiliate Debenture Guarantee Agreement between the Company
                   and The Chase Manhattan Bank, as guarantee trustee.*

 4(tttt)         Form of Subordinated Debenture.*

 4(uuuu)         Restated Certificate of Incorporation of the Company, dated           Exhibit 3(i) to Company's Quarterly Report
                   April 28, 1998.                                                     on Form 10-Q for the quarter ended March 27,
                                                                                       1998.

 4(vvvv)         By-Laws of the Company, effective as of April 15, 1997.               Exhibit 3(ii) to Company's Quarterly Report
                                                                                       on Form 10-Q for the quarter ended March 27,
                                                                                       1997.

 4(wwww)           Form of Certificate of Designations of the Company                  Exhibit  4(ssss)  to  Company's Registration
                   establishing  the    rights,   preferences,   privileges,           Statement  on Form S-3 (File No. 333-44173).
                   qualifications,  restrictions,  and  
                   limitations relating to a series of the Preferred Stock.

 4(xxxx)           Form of certificate representing Preferred Stock.                   Exhibit 4(d) to Company's Registration 
                                                                                       Statement on Form S-3 (File No. 33-55363).

 4(yyyy)           Form of certificate representing Common Stock.                      Exhibit 4(uuuu) to Company's Registration
                                                                                       Statement on Form S-3 (File No. 333-44173).

 4(zzzz)           Form of Liquid Yield Option Note Indenture.                         Exhibit 4(vvvv) to Company's Registration
                                                                                       Statement on Form S-3 (File No. 333-44173).

 4(aaaaa)          Form of Subsequent Liquid Yield Option Note Indenture.              Exhibit 4(wwww) to Company's Registration
                                                                                       Statement on Form S-3 (File No. 333-44173).

 4(bbbbb)          Form of Market Index  Target-Term  Security  based                  Exhibit 4 to Company's  Current Report on
                   upon the Dow Jones  Industrial Average due January 14, 2003.        Form 8-K dated December 23, 1997.
   
 4(ccccc)          Supplemental   Indenture   to  the   1983   Senior                  Exhibit  4(yyyy)  to Company's Registration
                   Indenture,  the 1993  Senior Indenture and the                      Statement on Form S-3 (File No. 333-44173).
                   Subordinated  Indenture  between  the  Company and
                   The Chase Manhattan Bank, as trustee.

_____________
*  Previously filed.
    
 4(ddddd)          Amended and Restated Rights Agreement, dated as of                  Exhibit 4 to  Company's  Current Report on
                   December 2, 1997 between  the  Company  and  ChaseMellon            Form  8-K  dated December 2, 1997.
                   Shareholder  Services,L.L.C., as Rights Agent.

 4(eeeee)          Certificate   of   Designations   of  the  Company                  Exhibit 3(f) to Company's Registration
                   establishing the rights, preferences, privileges,                   Statement on Form S-3 (File No. 33-19975).
                   qualifications, restrictions and limitations relating
                   to the Company's Series A Junior Preferred Stock.

 4(fffff)          Amendment No. 1 to the Form of Distribution Agreement.              Exhibit 4(bbbbb) to Company's Registration
                                                                                       Statement on Form S-3 (File No. 333-19975).

 4(ggggg)          Form of EuroFund Market Index Target-Term Security                  Exhibit 4 to Company's  Current Report
                   due  February 28, 2006.                                             on  Form 8-K dated September 3, 1998.

 4(hhhhh)          Form of S&P 500 Market Index Target-Term  Security                  Exhibit 4 to Company's  Current Report on 
                   due September 28,  2005.                                            Form 8-K dated September 29, 1998.

 4(iiiii)          Form of 6 3/8% Note due October 15, 2008.                           Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated October 28, 1998.

 4(jjjjj)          Form of 6% Note due November 15, 2004.                              Exhibit (4)(b) to Company's Current Report
                                                                                       on Form 8-K dated November 24, 1998.

 4(kkkkk)          Form of 6 7/8% Note due November 15, 2018.                          Exhibit (4)(c) to Company's Current Report
                                                                                       on Form 8-K dated November 24, 1998.

 4(lllll)          Form  of   Medium-Term   Notes,   Series  B,  1.5%                  Exhibit   99(b)  to Company's   Registration
                   Principal   Protected   Note due  December  15,  2005               on Form 8-A dated December 3, 1998.
                   (Linked  to  the  performance  of  the  Dow  Jones
                   Statement Euro STOXX 50 Index).

 4(mmmmm)          Form  of  Nikkei  225  Market  Index   Target-Term                  Exhibit  4 to  Company's Current  Report  on
                   Security  due  September  21,  2005.                                Form  8-K  dated December 28, 1998.
   
 4(nnnnn)          Form of Energy Select  Sector  SPDR(R) Fund Market                  Exhibit 4 to Company's Current Report on
                   Index  Target-Term Securities  due February 21, 2006.               Form 8-K dated February 18, 1999.

 4(ooooo)          Form of 5 1/4% STock Return Income DEbt Securities 
                   due August 23, 2000.                                                 Exhibit 4 to Company's Current Report on
                                                                                        Form 8-K dated February 23, 1999.
    
 5(a)              Opinion of Brown & Wood LLP.*

 5(b)              Opinion of Brown & Wood LLP.*

 5(c)              Opinion of Skadden, Arps, Slate, Meagher & Flom LLP.*

 5(d)              Opinion of Brown & Wood LLP.*
   
 12(a)             Computation of Ratio of Earnings to Fixed Charges of the            Exhibit 12 to Company's Annual Report on
                   Company.                                                            Form 10-K for the year ended December 25,
                                                                                       1998.

 12(b)             Computation of Ratio of Earnings to Combined Fixed Charges          Exhibit 12 to Company's Annual Report on
                   and Preferred Stock Dividends of the Company.                       Form 10-K for the year ended December 25,
                                                                                       1998.
    
 23(a)             Consents of Brown & Wood LLP. (included as part of Exhibit 5).*
   
 23(b)             Consent of Deloitte & Touche LLP.
    
 24                Power of Attorney of the Company.*

 25(a)             Form T-1 Statement of Eligibility under the Trust Indenture Act of
                   1939 of The Chase Manhattan Bank.*

 25(b)             Form T-1 Statement of Eligibility under the Trust Indenture Act of
                   1939 of The Chase Manhattan Bank under the Amended and Restated
                   Declaration of Trust (contained in Exhibit 4(mmmm)); Trust
                   Preferred Securities Guarantee Agreement (contained in Exhibit
                   4(pppp)); Subordinated Indenture (contained in Exhibit 4(rrrr));
                   and Affiliate Debenture Guarantee Agreement (contained in Exhibit
                   4(ssss)).*

   
 99(a)             Opinion of  Deloitte & Touche LLP with  respect to                  Exhibit (99)(i) to Company's Annual Report
                   certain    financial   data   appearing   in   the                  on Form 10-k for year ended December 25,
                   Registration Statement.                                             1998.

 99(b)             Opinion of Deloitte & Touche LLP with respect to certain summary    Exhibit (99)(ii) to Company's Annual Report
                   financial information and selected financial data incorporated by   on Form 10-k for year ended December 25,
                   reference in the Registration Statement.                            1998.
    
</TABLE>


- -----------
*        Previously filed.


<PAGE>

   
Item 17. Undertakings
    
         Each of the undersigned registrants hereby undertakes:

                  (a)(1) To file, during any period in which offers or sales are
         being made, a post-effective amendment to this registration statement:

                           (i)      To include any prospectus required by 
                  Section 10(a)(3) of the securities act of 1933;

                           (ii) To reflect in the prospectus any facts or events
                  arising after the effective date of the registration statement
                  (or the most recent  post-effective  amendment thereof) which,
                  individually  or in the  aggregate,  represent  a  fundamental
                  change  in the  information  set  forth  in  the  registration
                  statement;  notwithstanding  the  foregoing,  any  increase or
                  decrease in volume of securities  offered (if the total dollar
                  value of  securities  offered  would not exceed that which was
                  registered)  and any deviation from the low or high end of the
                  estimated  maximum offering range may be reflected in the form
                  of  prospectus   filed  with  the   Securities   and  Exchange
                  Commission  pursuant to Rule 424(b) if, in the aggregate,  the
                  changes in volume and price  represent no more than 20 percent
                  change in the maximum  aggregate  offering  price set forth in
                  the  "Calculation of Registration  Fee" table in the effective
                  registration statement.

                           (iii)  To  include  any  material   information  with
                  respect to the plan of distribution  not previously  disclosed
                  in the  registration  statement or any material change to such
                  information in the registration statement;

                  provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do
                  not apply if the registration statement is on Form S-3 and the
                  information  required  to  be  included  in  a  post-effective
                  amendment by those paragraphs is contained in periodic reports
                  filed by the registrant pursuant to Section 13 or 15(d) of the
                  Securities  Exchange  Act of 1934  that  are  incorporated  by
                  reference in the Registration Statement.

                  (2) That, for the purpose of determining  any liability  under
         the Securities Act of 1933, each such post-effective amendment shall be
         deemed to be a new  registration  statement  relating to the securities
         offered therein,  and the offering of such securities at the time shall
         be deemed to be the initial bona fide offering thereof.

                  (3) To remove from  registration by means of a  post-effective
         amendment any of the Securities being registered which remain unsold at
         the termination of the offering.

              (b) That,  for  purpose of  determining  any  liability  under the
         Securities Act of 1933, each filing of such registrant's  annual report
         pursuant to Section  13(a) or 15(d) of the  Securities  Exchange Act of
         1934 that is incorporated by reference in this  registration  statement
         shall be  deemed to be a new  registration  statement  relating  to the
         securities  offered therein and the offering of such securities at that
         time shall be deemed to be the initial bona fide offering thereof.

              (c) Insofar as indemnification  for liabilities  arising under the
         Securities  Act of 1933 may be  permitted  to  directors,  officers and
         controlling  persons  of such  registrant  pursuant  to the  provisions
         referred to in Item 15 of this  registration  statement,  or otherwise,
         such  registrant has been advised that in the opinion of the Securities
         and Exchange  Commission such  indemnification is against public policy
         as expressed in such Act and is, therefore, unenforceable. In the event
         that a claim for  indemnification  against such liabilities (other than
         the  payment  by such  registrant  of  expenses  incurred  or paid by a
         director,  officer  or  controlling  person of such  registrant  in the
         successful  defense of any action,  suit or  proceeding) is asserted by
         such  director,  officer or controlling  person in connection  with the
         securities  being  registered,  such  registrant  will,  unless  in the
         opinion  of its  counsel  the matter  has been  settled by  controlling
         precedent,  submit to a court of appropriate  jurisdiction the question
         whether  such  indemnification  by  it  is  against  public  policy  as
         expressed in the Act and will be governed by the final  adjudication of
         such issue.

              (d) To file an  application  for the  purpose of  determining  the
         eligibility  of the trustee to act under  subsection (a) of Section 310
         of the Trust Indenture Act (the "Act") in accordance with the rules and
         regulations prescribed by the Commission under Section 305(b)(2) of the
         Act.

<PAGE>

                                   SIGNATURES
   
         Pursuant  to the  requirements  of the  Securities  Act  of  1933,  the
Registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-3 and has duly caused this amendment to
the  registration  statement  to be  signed on its  behalf  by the  undersigned,
thereunto duly authorized,  in The City of New York and State of New York on the
29th day of March, 1999.
    
                                       MERRILL LYNCH & CO., INC.


                                       By:  /s/ E. Stanley O'Neal              
                                          -------------------------------------
                                           E. Stanley O'Neal
                                          (Executive Vice President and
                                           Chief Financial Officer)
   
         Pursuant  to the  requirements  of the  Securities  Act of  1933,  this
amendment to the registration statement has been signed by the following persons
in the capacities indicated on the 29th day of March, 1999.
    

<TABLE>
<S>                                                  <C>
Signature                                            Title

                          *                          Chairman of the Board, Chief Executive Officer and Director
- --------------------------------------------------
                 (David H. Komansky)

                          *                          President, Chief Operating Officer and Director
- --------------------------------------------------
              (Herbert M. Allison, Jr.)

              /s/     E. Stanley O'Neal              Executive Vice President and Chief Financial Officer (Principal Financial
- --------------------------------------------------
                 (E. Stanley O'Neal)                 Officer)
   
              /s/    Ahmass L. Fakahany              Senior Vice President and Controller (Principal Accounting Officer)
- --------------------------------------------------
                (Ahmass L. Fakahany)
    
                          *                          Director
- --------------------------------------------------
                    (W. H. Clark)

                          *                          Director
- --------------------------------------------------
                  (Jill K. Conway)

                          *                          Director
- --------------------------------------------------
               (Stephen L. Hammerman)

                          *                          Director
- --------------------------------------------------
              (Earle H. Harbison, Jr.)

                          *                          Director
- --------------------------------------------------
                 (George B. Harvey)

                          *                          Director
- --------------------------------------------------
                 (William R. Hoover)

                          *                          Director
- --------------------------------------------------
                 (Robert P. Luciano)

                          *                          Director
- --------------------------------------------------
                 (Aulana L. Peters)

                          *                          Director
- --------------------------------------------------
                (John J. Phelan, Jr.)

                          *                          Director
- --------------------------------------------------
                 (John L. Steffens)

                          *                          Director
- --------------------------------------------------
                 (William L. Weiss)


*By:              /s/ E. Stanley O'Neal
- --------------------------------------------------
                E. Stanley O'Neal
                (Attorney-in-Fact)
</TABLE>


<PAGE>


                                   SIGNATURES
   
         Pursuant  to the  requirements  of the  Securities  Act  of  1933,  the
Registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-3 and has duly caused this amendment to
the  registration  statement  to be  signed on its  behalf  by the  undersigned,
thereunto duly authorized, on the 29th of March, 1999.

                         MERRILL LYNCH PREFERRED FUNDING VI, L.P.
                         BY: MERRILL LYNCH & CO., INC.,
                             as General Partner



                         By:    /s/ E. Stanley O'Neal
                           --------------------------------------------------
                             Name: E. Stanley O'Neal
                             Title:    Executive Vice President and Chief
                                       Financial Officer
    

<PAGE>

                                   SIGNATURES
   
         Pursuant  to the  requirements  of the  Securities  Act  of  1933,  the
Registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-3 and has duly caused this amendment to
the  registration  statement  to be  signed on its  behalf  by the  undersigned,
thereunto duly authorized, on the 29th of March, 1999.
    
                              MERRILL LYNCH PREFERRED CAPITAL TRUST VI

   
                              By:    /s/ Raymond Disco
                                  ---------------------------------------------
                                  Name:  Raymond Disco
                                  Title:    Regular Trustee
    

                              By:    /s/ Stanley Schaefer
                                  --------------------------
                                   Name: Stanley Schaefer
                                   Title:    Regular Trustee

<PAGE>

                                                            EXHIBIT INDEX
<TABLE>
<S>               <C>                                                                        <C>
 Exhibit                                                                                         Incorporation by Reference
 Number                                       Description                                           to Filings Indicated
 ------                                       -----------                                           ---------------------

 1(a)              Form of  Underwriting  Agreement for Debt Securities                  Exhibit  1(a) to  Company's  Registration
                   and Debt, Currency  and  Index  Warrants,  including  forms of        Statement   on  Form  S-3  (No. 333-59997).
                   Terms   Agreement.   

 1(b)              Form of  Distribution  Agreement,  including form of                Exhibit   1(b)   to   Company's Registration
                   Terms   Agreement, relating to Medium-Term Notes, Series B          Statement on Form S-3 (No. 33-51489).
                   (a series of Senior Debt Securities).

 1(c)              Form of  Underwriting  Agreement for Preferred Stock                  Exhibit   1(c)  to   Company's
                   and  Common   Stock Registration Warrants,  Preferred Stock,          Statement on Form S-3 (No. 333-59997).
                   Depositary Shares and Common Stock.  

 1(d)              Form of Purchase Agreement relating to the Trust Preferred          Exhibit 1.1 to Company's Registration
                   Securities.                                                         Statement on Form S-3 (No. 333-42859).

 4(a)(i)           Senior  Indenture,  dated as of April  1,  1983,  as                Exhibit  99(c) to  Company's Registration
                   amended  and  restated   (the "1983 Senior Indenture"),             on Form 8-A dated July 20, 1992.
                   between the  Company  and The  Chase  Statement  
                   Manhattan  Bank,  formerly  known as  Chemical  Bank
                   (successor by merger to Manufacturers  Hanover Trust
                   Company).

 4(a)(ii)          Senior  Indenture,  dated as of October 1, 1993 (the                Exhibit 4 to Company's  Current Report on
                   "1993 Senior Indenture"),  between  the Company and the Chase       Form 8-K dated October 7, 1993.
                   Manhattan Bank (successor by merger to The Chase Manhattan 
                   Bank, N.A.).

 4(a)(iii)       Form of initial Subsequent Indenture with respect to Senior Debt
                   Securities.*

 4(a)(iv)        Form of Subsequent Indenture with respect to Senior Debt Securities.*

 4(b)(i)           Supplemental Indenture to the 1983 Senior Indenture,                Exhibit   99(c)  to   Company's Registration
                   dated   March  15,    1990, between the Company and The Chase       on Form 8-A dated July 20, 1992.
                   Manhattan Bank, formerly Statement known as Chemical Bank 
                  (successor by merger to Manufacturers Hanover Trust Company).

 4(b)(ii)          Eighth  Supplemental  Indenture  to the 1983  Senior                Exhibit  4(b)  to  Post-Effective Amendment
                   Indenture,  dated   March 1, 1996, between the Company and The      No. 1 to Company's Registration Statement on
                   Chase   Manhattan   Bank,    formerly known as Chemical             Form  S-3  (No. 33-65135).
                   Bank   (successor   by   merger  to Manufacturers 
                   Hanover Trust Company).

 4(b)(iii)         Ninth  Supplemental  Indenture  to the  1983  Senior                Exhibit  4(b)  to  Post-Effective Amendment
                   Indenture,  dated   June 1, 1996,  between the Company and The      No. 4 to Company's Registration Statement
                   Chase   Manhattan   Bank, formerly known as Chemical                on Form  S-3  (No. 33-65135).
                   Bank   (successor   by   merger  to  
                   Manufacturers Hanover Trust Company).

 4(b)(iv)          Tenth  Supplemental  Indenture  to the  1983  Senior                Exhibit  4(b)  to  Post-Effective Amendment
                   Indenture,  dated   July 1, 1996,  between the Company and The      No.5 to Company's Registration Statement on
                   Chase   Manhattan   Bank,  formerly known as Chemical               Form  S-3  (No. 33-65135).
                   Bank   (successor   by   merger  to  
                   Manufacturers Hanover Trust Company).

 4(b)(v)           Supplemental Indenture to the 1983 Senior Indenture,                Exhibit  4(b)(ii) to  Company's  Registration
                   dated October 25, 1993,  between the Company and The Chase          on Form S-3 (No. 33-61559).
                   Manhattan Bank Statement (successor by merger to 
                   The Chase Manhattan Bank, N.A.).
   
_____________
*  Previously filed.
    

 4(b)(vi)          Twelfth  Supplemental  Indenture  to the 1983 Senior                Exhibit 4(a) to Company's Current report on
                   Indenture dated as  of  September  1, 1998 between the Company      Form 8-K dated October 21, 1998.
                   and The Chase  Manhattan  Bank,  formerly known 
                   as Chemical Bank (successor by
                   merger to Manufacturers Hanover Trust Company).

 4(b)(vii)         First  Supplemental  Indenture  to the  1993  Senior               Exhibit  4(a)  to  Company's Current  Report
                   Indenture,   dated  as   of June  1,  1998,  between  the          on Form 8-K dated July 2, 1998.
                   Company and The Chase  Manhattan Bank 
                   (successor by merger to The Chase Manhattan Bank N.A.).

 4(c)(i)         Form of Subordinated Indenture between the Company and The Chase      Exhibit 4.7 to Company's Registration
                   Manhattan Bank.                                                     Statement on Form S-3 (No. 333-16603).

 4(c)(ii)        Form of Subsequent Indentures with respect to Subordinated Debt
                   Securities.*
   
 4(d)            Form of 6% Note due February 17, 2009.                                Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated February 17, 1999.
    
 4(e)            Form of 6 3/8% Note due March 30, 1999.                               Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated March 30, 1994.

 4(f)            Form of Equity Participation Security with Minimum Return Protection  Exhibit 4(ooo) to Amendment No. 1 to
                   due June 30, 1999.                                                  Company's Registration Statement on Form S-3
                                                                                       (No. 33-54218).

 4(g)            Form of European Portfolio Market Index Target-Term Security due      Exhibit 4 to Company's Current Report on
                   June 30, 1999.                                                      Form 8-K dated December 30, 1993.

   
 4(h)            Form of 8 1/4% Note due November 15, 1999.                            Exhibit 4(cc) to Company's Registration
                                                                                       Statement on Form S-3 (No. 33-45327).
    

 4(i)            Form of Stock Market Annual Reset Term Note due December 31, 1999     Exhibit 4 to Company's Current Report on
                   (Series A).                                                         Form 8-K dated April 29, 1993.

 4(j)              Form of Japan Index  Equity  Participation  Security                Exhibit 4 to Company's  Current Report on
                   with Minimum   Return  Protection due January 31, 2000.             Form 8-K dated January 27, 1994.

 4(k)            Form of 8 3/8% Note due February 9, 2000.                             Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated February 9, 1995.

 4(l)            Form of 6.70% Note due August 1, 2000.                                Exhibit 4 to Company's Report on Form 8-K
                                                                                       dated August 1, 1995.

 4(m)            Form of AMEX Oil Index Stock Market Annual Reset Term Note due        Exhibit 4 to Company's Current Report on
                   December 29, 2000.                                                  Form 8-K dated March 31, 1994.

 4(n)            Form of 8% Note due February 1, 2002.                                 Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated February 4, 1992.

 4(o)            Form of Step-Up Note due April 30, 2002.                              Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated April 30, 1992.

 4(p)            Form of Step-Up Note due May 6, 2002.                                 Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated May 6, 1992.

 4(q)            Form of 7 3/8% Note due August 17, 2002.                              Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated August 17, 1992.
   
_____________
*  Previously filed.
    

 4(r)              Form  of  Major  8  European   Index   Market  Index                Exhibit  4 to  Company's Current  Report on
                   Target-Term  Security  due August 30,  2002.                        Form 8-K dated August 1, 1997.

 4(s)            Form of 6.64% Note due September 19, 2002.                            Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated September 19, 1995.

 4(t)            Form of 8.30% Note due November 1, 2002.                              Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated May 4, 1992.

 4(u)            Form of Major 11 European Market Index Target-Term Security due       Exhibit 4 to Company's Current Report on
                   December 6, 2002.                                                   Form 8-K dated November 26, 1997.

 4(v)            Form of 6 7/8% Note due March 1, 2003.                                Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated March 1, 1993.

 4(w)            Form of 7.05% Note due April 15, 2003.                                Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated April 15, 1993.

 4(x)            Form of 6.55% Note due August 1, 2004.                                Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated August 1, 1997.

 4(y)            Form of Russell 2000 Index Market Index Target-Term Security due      Exhibit 4 to Company's Current Report on
                   September 30, 2004.                                                 Form 8-K dated September 29, 1997.

   
 4(z)            Form of 6 1/4% Note due January 15, 2006.                             Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated January 20, 1994.
    

 4(aa)           Form of 6 3/8% Note due September 8, 2006.                            Exhibit 4 to Company's Current Report
                                                                                       on Form 8-K dated September 8, 1993.

 4(bb)           Form of 8% Note due June 1, 2007.                                     Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated June 1, 1992.

   
 4(cc)           Form  of S&P 500  Inflation  Adjusted  Market  Index                  Exhibit 4 to Company's Current Report on
                 Target-Term  Security  due  September  24,  2007.                     Form 8-K dated September 24, 1997.
    

 4(dd)           Form of 7% Note due April 27, 2008.                                   Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated April 27, 1993.

   
 4(ee)           Form of 6 1/4% Note due October 15, 2008.                             Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated October 15, 1993.
    

 4(ff)           Form of 8.40% Note due November 1, 2019.                              Exhibit 4(z) to Company's Registration
                                                                                       Statement on Form S-3 (No. 33-35456).

 4(gg)           Form of Fixed Rate Medium-Term Note (without redemption provisions).  Exhibit 4(kk) to Company's Registration
                                                                                       Statement on Form S-3 (No. 33-54218).

 4(hh)           Form of Fixed Rate Medium-Term Note (with redemption provisions).     Exhibit 4(ll) to Company's Registration
                                                                                       Statement on Form S-3 (No. 33-54218).

 4(ii)             Form  of  Fixed  Rate   Medium-Term   Note  (without                Exhibit  4(d) to  Company's Registration 
                   redemption  provisions,  minimum denomination $1,000).              Statement on Form S-3 (No. 33-38879).

 4(jj)             Form of Fixed Rate Medium-Term Note (with redemption                Exhibit 4(c) to Company's  Registration
                   provisions, minimum denominations $1,000).                          Statement on Form S-3 (No. 33-38879).
   
 4(kk)           Form of Fixed Rate Medium-Term Note, Series B.
    
 4(ll)           Form of Federal Funds Rate Medium-Term Note.                          Exhibit 4(oo) to Company's Registration
                                                                                       Statement on Form S-3 (No. 33-54218).
   
 4(mm)           Form of Floating Rate Medium-Term Note, Series B.
    
 4(nn)           Form of Commercial Paper Rate Medium-Term Note.                       Exhibit 4(qq) to Company's Registration
                                                                                       Statement on Form S-3 (No. 33-54218).

 4(oo)           Form of Commercial Paper Index Rate Medium-Term Note.                 Exhibit 4(i) to Company's Registration
                                                                                       Statement on Form S-3 (File No. 33-38879).

 4(pp)           Form of Constant Maturity Treasury Rate Indexed Medium-Term Note,     Exhibit 4(ccc) to Company's Registration
                   Series B.                                                           Statement on Form S-3 (No. 33-52647).

 4(qq)           Form of Constant Maturity Treasury Rate Indexed Medium-Term Note II,  Exhibit 4(xv) to Company's Annual Report on
                   Series B.                                                           Form 10-K for the year ended December 30,
                                                                                       1994.

 4(rr)           Form of JPY Yield Curve Flattening Medium-Term Note, Series B.        Exhibit 4(ddd) to Company's Registration
                                                                                       Statement on Form S-3 (No. 33-52647).

 4(ss)           Form of LIBOR Medium-Term Note.                                       Exhibit 4(pp) to Company's Registration
                                                                                       Statement on Form S-3 (No. 33-54218).

 4(tt)           Form of Multi-Currency Medium-Term Note, Series B.                    Exhibit 4(fff) to Company's Registration
                                                                                       Statement on Form S-3 (No. 33-52647).

 4(uu)           Form of Nine Month Renewable Floating Rate Medium-Term Note, Series   Exhibit 4(ix) to Company's Quarterly Report
                   B.                                                                  on Form 10-Q for the quarter ended
                                                                                       September 24, 1993.

 4(vv)           Form of Treasury Rate Medium-Term Note.                               Exhibit 4(aaa) to Company's Registration
                                                                                       Statement on Form S-3 (No. 33-54218).

 4(ww)           Form of Collared LIBOR Medium-Term Note due February 14, 2000.        Exhibit 4(ww) to Company's Registration
                                                                                       Statement on Form S-3 (No. 33-54218).

 4(xx)           Form of Japanese Yen Swap Rate Linked Medium-Term Note, Series B.     Exhibit 4(mmm) to Company's Registration
                                                                                       Statement on Form S-3 (No. 33-52647).

 4(yy)           Form of Step-Up Medium-Term Note due May 20, 2008.                    Exhibit 4(ggg) to Amendment No. 1 to
                                                                                       Company's Registration Statement on Form S-3
                                                                                       (No. 33-54218).

 4(zz)           Form of Warrant Agreement, including form of Warrant Certificate.     Exhibit 4(aa) to Company's Registration
                                                                                       Statement on Form S-3 (No. 33-35456).

 4(aaa)          Form of Currency [Put/Call] Warrant Agreement, including form of      Exhibit 4 to Company's Registration Statement
                   Global Currency Warrant Certificate.                                on Form S-3 (No. 33-17965).

 4(bbb)          Form of Index Warrant Agreement, including form of Global Index       Exhibit 4(kkk) to Amendment No. 1 to
                   Warrant Certificate.                                                Company's Registration Statement on Form S-3
                                                                                       (No. 33-54218).

 4(ccc)          Form of Index Warrant Trust Indenture, including form of Global       Exhibit 4(lll) to Amendment No. 1 to
                   Index Warrant Certificate.                                          Company's Registration Statement on Form S-3
                                                                                       (No. 33-54218).

   
 4(ddd)          Form of 6 1/2% Note due April 1, 2001.                                Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated April 1, 1996.
    

 4(eee)          Form of 6% Note due January 15, 2001.                                 Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated January 17, 1996.

 4(fff)          Form of 6% Note due March 1, 2001.                                    Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated February 29, 1996.

 4(ggg)          Form of 7% Note due March 15, 2006.                                   Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated March 18, 1996.

   
 4(hhh)          Form of 7 3/8% Note due May 15, 2006.                                 Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated May 15, 1996.
    

 4(iii)          Form of 6% STRYPES due June 1, 1999.                                  Exhibit 4(c) to Company's Form 8-K/A dated
                                                                                       June 7, 1996.

   
 4(jjj)          Form of 7 1/4% STRYPES due June 15, 1999.                             Exhibit 4(c) to Post-Effective Amendment
                                                                                       No. 4 to Company's Registration Statement on
                                                                                       Form S-3 (33-65135).

 4(kkk)          Form of 6 1/4% STRYPES due July 1, 2001.                              Exhibit 4(c) to Company's Current Report on
                                                                                       Form 8-K dated July 9, 1996.
    

 4(lll)          Form of S&P 500 Market Index Target-Term Security due May 10, 2001.   Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated May 13, 1996.
   
 4(mmm)          Form of S&P 500 Market Index Target-Term Security due March 27,       Exhibit 4 to Company's Current Report on
                   2006.                                                               Form 8-K dated March 26, 1999.
    
 4(nnn)          Form of Technology Market Index Target-Term Security due August 15,   Exhibit 4(a) to Company's Current Report on
                   2001.                                                               Form 8-K dated August 12, 1996.

 4(ooo)          Form of Top Ten Yield Market Index Target-Term Security due           Exhibit 4(b) to Company's Current Report on
                   August 15, 2006.                                                    Form 8-K dated August 12, 1996.

 4(ppp)            Form of  Healthcare/Biotechnology  Portfolio  Market                Exhibit 4 to  Company's  Current Report on
                   Index  Target-Term   Security  due October 31,  2001.               Form 8-K dated October 30, 1996.

 4(qqq)          Form of 7% Note due January 15, 2007.                                 Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated January 13, 1997.

 4(rrr)          Form of S&P 500 Market Index Target-Term Security due September 16,   Exhibit 4 to Company's Current Report on
                   2002.                                                               Form 8-K dated March 14, 1997.

 4(sss)          Form of Nikkei 225 Market Index Target-Term Security due June 14,     Exhibit 4 to Company's Current Report on
                   2002.                                                               Form 8-K dated June 3, 1997.

 4(ttt)          Form of 6.56% Note due December 16, 2007.                             Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated December 16, 1997.

   
 4(uuu)          Form of 7 7/8% STRYPES due February 1, 2001 (Payable with Shares of   Exhibit 4(c) to Company's Current Report on
                   Common Stock of CIBER, Inc.)                                        Form 8-K dated January 30, 1998.
    

 4(vvv)          Form of Floating Rate Note due February 4, 2003.                      Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated February 4, 1998.

 4(www)          Form of 6% Note due February 12, 2003.                                Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated February 12, 1998.

 4(xxx)          Form of Oracle Corporation Indexed Callable Protected Growth          Exhibit 4 to Company's Current Report on
                   Security due March 31, 2003.                                        Form 8-K dated March 19, 1998.

 4(yyy)          Form of Telebras Indexed Callable Protected Growth Security due       Exhibit 4 to Company's Current Report on
                   May 19, 2005.                                                       Form 8-K dated May 19, 1998.

   
 4(zzz)          Form of 6 3/4% Note due June 1, 2028.                                 Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated June 3, 1998.
    

 4(aaaa)         Form of Floating Rate Note due June 24, 2003.                         Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated June 24, 1998.

 4(bbbb)         Form of S&P 500 Market Index Target-Term Security due July 1, 2005.   Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated June 26, 1998.

 4(cccc)           Form of Medium-Term Notes, Series B, 3% Stock Linked                Exhibit 4 to  Company's  Current  Report on
                   Note due  June 10, 2000  (Linked to the  performance  of Honda      Form 8-K dated June 10, 1998.
                   Motor Co., Ltd. Common Stock).

 4(dddd)           Form of Medium-Term Notes, Series B, 5% Stock Linked                Exhibit 4(c) to Company's Current Report on
                   Note due July  3,  2000  (Linked  to the  performance  of the       Form 8-K dated July 2, 1998.
                   Common Stock of Travelers Group, Inc.).

 4(eeee)           Form  of  Medium-Term  Notes,  Series  B,  7%  Stock
                   Portfolio Linked Note due August 18, 2000 (Linked to
                   the  performance of the Common Stock of Intuit Inc.,
                   CKS Group, Inc. and CNET, Inc.).*

 4(ffff)           Form of  Medium-Term  Notes,  Series B, Single Stock
                   Linked  Note due  August  13,  1999  (Linked  to the
                   performance    of   the   Common   Stock   of   Case
                   Corporation).*

   
 4(gggg)           Form of 5 3/4% STock Return Income DEbtSecurities
                   due June 1, 2000.                                                   Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated December 1, 1998.
    
 4(hhhh)         Form of 6% Note due July 15, 2003.                                    Exhibit (4)(a) to Company's Current Report on
                                                                                       Form 8-K dated July 15, 1998.

   
 4(iiii)         Form of 6 1/2% Note due July 15, 2018.                                Exhibit (4)(b) to Company's Current Report on
                                                                                       Form 8-K dated July 15, 1998.
    

 4(jjjj)           Form of  Preferred  Stock and Common  Stock  Warrant                Exhibit 4(cccc) to Company's Registration
                   Agreement, including  forms of Preferred Stock and Common Stock     Statement on Form S-3 (File No. 333-44173).
                   Warrant Certificates.

 4(kkkk)         Form of Deposit Agreement, including form of Depositary Receipt       Exhibit 4(ffff) to Company's Registration
                   Certificate representing the Depositary Shares.                     Statement on Form S-3 (File No. 333-44173).
   
 4(llll)         Certificate of Trust of Merrill Lynch Preferred Capital Trust VI.*
    
 4(mmmm)         Form of Amended and Restated Declaration of Trust of Merrill Lynch
                   Preferred Capital Trust VI, including form of Trust Preferred
                   Security.*
   
 4(nnnn)         Certificate of Limited Partnership of Merrill Lynch Preferred
                   Funding VI, L.P.*
    
 4(oooo)         Form of Amended and Restated Limited Partnership Agreement of
                   Merrill Lynch Preferred Funding VI, L.P.*
   
_____________
*  Previously filed.
    

 4(pppp)         Form of Trust Preferred Securities Guarantee Agreement, between the
                   Company and The Chase Manhattan Bank, as guarantee trustee,
                   including form of Partnership Preferred Security.*

 4(qqqq)         Form of Partnership Preferred Securities Guarantee Agreement between
                   the Company and The Chase Manhattan Bank, as guarantee trustee.*

 4(rrrr)           Form of Subordinated Debenture Indenture between the                Exhibit 4 to Registration  Statement on 
                   Company and The Chase Manhattan Bank, as guarantee trustee.         Form S-3 (File No. 333-16603).

 4(ssss)         Form of Affiliate Debenture Guarantee Agreement between the Company
                   and The Chase Manhattan Bank, as guarantee trustee.*

 4(tttt)         Form of Subordinated Debenture.*

 4(uuuu)         Restated Certificate of Incorporation of the Company, dated           Exhibit 3(i) to Company's Quarterly Report on
                   April 28, 1998.                                                     Form 10-Q for the quarter ended March 27,
                                                                                       1998.

 4(vvvv)         By-Laws of the Company, effective as of April 15, 1997.               Exhibit 3(ii) to Company's Quarterly Report
                                                                                       on Form 10-Q for the quarter ended March 27,
                                                                                       1997.

 4(wwww)           Form of Certificate of  Designations  of the Company                Exhibit   4(ssss)  to  Company's Registration
                   establishing   the     rights,   preferences,    privileges,        Statement on Form S-3 (File No. 333-44173).
                   qualifications,  restrictions, and
                   limitations relating to a series of the Preferred Stock.

 4(xxxx)           Form of certificate representing Preferred Stock.                   Exhibit 4(d) to Company's Registration
                                                                                       Statement on Form S-3 (File No. 33-55363).

 4(yyyy)           Form of certificate representing Common Stock.
                                                                  
                                                                                       Exhibit 4(uuuu)to Company's Registration
                                                                                       Statement on Form S-3 (File No.333-44173).

 4(zzzz)           Form of Liquid Yield Option Note Indenture.                         Exhibit 4(vvvv) to Company's Registration
                                                                                       Statement on Form S-3 (File No. 333-44173).

 4(aaaaa)          Form of Subsequent Liquid Yield Option Note Indenture.              Exhibit 4(wwww) to Company's Registration
                                                                                       Statement on Form S-3 (File No. 333-44173).

 4(bbbbb)          Form of Market Index Target-Term Security based upon                Exhibit 4 to Company's Current Report on
                   the Dow Jones Industrial Average due January 14, 2003.              Form 8-K dated December 23, 1997.
   

 4(ccccc)          Supplemental Indenture to the 1983 Senior Indenture,                Exhibit 4(yyyy) to Company's Registration
                   the 1993 Senior Indenture and the Subordinated Indenture            Statement on Form S-3 (File No. 333-44173).
                   between the Company and The Chase Manhattan Bank, as trustee.

 4(ddddd)          Amended and Restated Rights Agreement, dated as of                  Exhibit 4 to  Company's  Current Report
                   December 2, 1997 on  between the Company and ChaseMellon            Form 8-K dated December 2, 1997.
                   Shareholder Services, L.L.C., as Rights Agent.
    
 4(eeeee)          Certificate of Designations of the Company establishing             Exhibit 3(f) to Company's Registration
                   the rights, preferences, privileges, qualifications,                Statement on Form S-3 (File No. 33-19975).
                   restrictions and limitations relating to the Company's
                   Series A Junior Preferred Stock.
   
 4(fffff)          Amendment No.1 to the Form of Distribution Agreement.               Exhibit 4(bbbbb) to Company's Registration
                                                                                       Statement on Form S-3 (File No. 333-19975).

_____________
*  Previously filed.
    
 4(ggggg)          Form of EuroFund Market Index Target-Term Security                  Exhibit 4 to Company's Current Report
                   due February 28, 2006.                                              on Form 8-K dated September 3, 1998.

 4(hhhhh)          Form of S&P 500 Market Index Target-Term Security                   Exhibit 4 to Company's Current Report
                   due  September  28, 2005.                                           on Form 8-K dated September 29, 1998.

 4(iiiii)          Form of 6 3/8% Note due October 15, 2008.                           Exhibit 4 to Company's Current Report on
                                                                                       Form 8-K dated October 28, 1998.

 4(jjjjj)          Form of 6% Note due November 15, 2004.                              Exhibit (4)(b) to Company's Current Report
                                                                                       on Form 8-K dated November 24, 1998.

 4(kkkkk)          Form of 6 7/8% Note due November 15, 2018.                          Exhibit (4)(c) to Company's Current Report on
                                                                                       Form 8-K dated November 24, 1998.

 4(lllll)          Form of Medium-Term Notes, Series B, 1.5% Principal                 Exhibit 99(b)   to   Company's Registration  
                   Protected Note due December 15, 2005 (Linked to the                 Statement on Form 8-A dated December 3, 1998.
                   performance  of the Dow Jones Euro STOXX 50 Index).

 4(mmmmm)          Form of Nikkei 225 Market Index Target-Term Security due            Exhibit 4 to Company's Current Report on Form
                   September 21, 2005.                                                 8-K dated December 28, 1998.

 4(nnnnn)          Form of Energy Select Sector SPDR(R) Fund Market Index              Exhibit 4 to Company's Current Report on
                   Target-Term Securities due February 21, 2006.                        Form 8-K dated February 18, 1999
   
 4(ooooo)          Form of 5 1/4% STock Return Income DEbt Securities                  Exhibit 4 to Company's Current Report on
                   due August 23, 2000.                                                Form 8-K dated February 23, 1999
    
 5(a)              Opinion of Brown & Wood LLP.*

 5(b)              Opinion of Brown & Wood LLP.*

 5(c)              Opinion of Skadden, Arps, Slate, Meagher & Flom LLP.*

 5(d)              Opinion of Brown & Wood LLP.*
   
 12(a)             Computation of Ratio of Earnings to Fixed Charges of the            Exhibit 12 to Company's Annual Report on
                   Company.                                                            Form 10-K for the year ended December 25,
                                                                                       1998.

 12(b)             Computation of Ratio of Earnings to Combined Fixed Charges          Exhibit 12 to Company's Annual Report on
                   and Preferred Stock Dividends of the Company.                       Form 10-K for the year ended December 25,
                                                                                       1998.
    
 23(a)             Consents of Brown & Wood LLP. (included as part of
                   Exhibit 5).*
   
 23(b)             Consent of Deloitte & Touche LLP.*

 24                Power of Attorney of the Company.*
    
 25(a)             Form T-1 Statement of Eligibility under the Trust Indenture
                   Act of 1939 of The Chase Manhattan Bank.*
   
_____________
*  Previously filed.
    

 25(b)             Form T-1 Statement of Eligibility under the Trust Indenture
                   Act of 1939 of The Chase Manhattan Bank under the Amended
                   and Restated Declaration of Trust (contained in Exhibit
                   4(mmmm)); Trust Preferred Securities Guarantee Agreement
                   (contained in Exhibit 4(pppp)); Subordinated Indenture
                   (contained in Exhibit 4(vvvv)); and Affiliate Debenture
                   Guarantee Agreement (contained in Exhibit 4(ssss)).*
   
 99(a)             Opinion of  Deloitte  & Touche  LLP with  respect to                Exhibit (99)(i) to Company's Annual Report
                   certain financial data appearing in the Registration                on Form 10-k for year ended December 25,
                   Statement.                                                          1998.

 99(b)             Opinion of Deloitte & Touche LLP with respect to certain            Exhibit (99)(ii) to Company's Annual Report
                   summary financial information and selected financial data           on Form 10-k for year ended December 25,
                   incorporated by reference in the Registration Statement.            1998.

</TABLE>

- -----------
*        Previously filed.
    

<PAGE>
                                                                  Exhibit 4(kk)

                      FIXED RATE GLOBAL MEDIUM-TERM NOTE

THIS NOTE IS A GLOBAL  NOTE WITHIN THE  MEANING OF THE  INDENTURE  HEREINAFTER
REFERRED  TO AND IS  REGISTERED  IN THE  NAME  OF A  DEPOSITORY  OR A  NOMINEE
THEREOF.  UNLESS  AND UNTIL IT IS  EXCHANGED  IN WHOLE OR IN PART FOR NOTES IN
CERTIFICATED  FORM, THIS NOTE MAY NOT BE TRANSFERRED  EXCEPT AS A WHOLE BY THE
DEPOSITORY TRUST COMPANY (THE  "DEPOSITORY") TO A NOMINEE OF THE DEPOSITORY OR
BY THE  DEPOSITORY OR ANY SUCH NOMINEE TO A SUCCESSOR  DEPOSITORY OR A NOMINEE
OF SUCH SUCCESSOR  DEPOSITORY.  UNLESS THIS NOTE IS PRESENTED BY AN AUTHORIZED
REPRESENTATIVE OF THE DEPOSITORY, TO THE COMPANY OR ITS AGENT FOR REGISTRATION
OF TRANSFER,  EXCHANGE OR PAYMENT,  AND ANY NOTE ISSUED IS  REGISTERED  IN THE
NAME OF CEDE & CO.  OR IN  SUCH  OTHER  NAME  AS  REQUESTED  BY AN  AUTHORIZED
REPRESENTATIVE  OF THE DEPOSITORY (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO
SUCH OTHER  ENTITY AS IS  REQUESTED  BY AN  AUTHORIZED  REPRESENTATIVE  OF THE
DEPOSITORY),  ANY TRANSFER,  PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF,  CEDE
& CO., HAS AN INTEREST HEREIN.

REGISTERED                                                 PRINCIPAL AMOUNT
No. FX ________________     CUSIP No. ________________     $_______________

                           MERRILL LYNCH & CO., INC.
                               MEDIUM-TERM NOTE,
                                   SERIES B
                                 (Fixed Rate)

ORIGINAL ISSUE DATE:            INTEREST RATE:             STATED MATURITY:


INTEREST PAYMENT DATES          RECORD DATE:
(May 15 and November 15,        (Fifteen days prior to the
unless otherwise specified)     applicable Interest Payment
                                Date, unless otherwise
                                specified)

INITIAL REDEMPTION              INITIAL REDEMPTION         ANNUAL REDEMPTION
DATE:                           PERCENTAGE:                PERCENTAGE

                                                           REDUCTION:

OPTIONAL REPAYMENT DATE(S):

DENOMINATIONS:                                             ADDENDUM ATTACHED:
(Integral multiples of $1,000,
unless otherwise                                           : Yes
specified)                                                 : No

OTHER PROVISIONS:


<PAGE>


         MERRILL LYNCH & CO.,  INC., a Delaware  corporation  ("Issuer" or the
"Company," which terms include any successor  corporation  under the Indenture
hereinafter referred to), for value received, hereby promises to pay to CEDE &
CO., or registered assigns, the principal sum of
                                                                       DOLLARS
on the Stated  Maturity  specified  above  (except to the extent  redeemed  or
repaid  prior to the  Stated  Maturity),  and to pay  interest  thereon at the
Interest Rate per annum specified above, until the principal hereof is paid or
duly made available for payment.  Reference  herein to "this Note",  "hereof",
"herein" and comparable  terms shall include an Addendum hereto if an Addendum
is specified above.

         The Company will pay interest on each Interest Payment Date specified
above,  commencing  on the first  Interest  Payment Date next  succeeding  the
Original  Issue  Date  specified  above,  and on the  Stated  Maturity  or any
Redemption  Date or Optional  Repayment  Date (as defined  below) (the date of
each such Stated Maturity, Redemption Date and Optional Repayment Date and the
date on which  principal or an  installment of principal is due and payable by
declaration  of  acceleration  pursuant  to the  Indenture  being  referred to
hereinafter as a "Maturity"  with respect to principal  payable on such date);
provided, however, that if the Original Issue Date is between a Regular Record
Date  (as  defined  below)  and the next  succeeding  Interest  Payment  Date,
interest payments will commence on the second Interest Payment Date succeeding
the Original Issue Date. Unless otherwise specified above, the "Regular Record
Date" shall be the date 15 calendar days (whether or not a Business Day) prior
to the  applicable  Interest  Payment Date.  Interest on this Note will accrue
from and including the most recent Interest Payment Date to which interest has
been paid or duly  provided  for or, if no  interest  has been paid,  from the
Original Issue Date specified  above,  to, but excluding such Interest Payment
Date. If the Maturity or an Interest  Payment Date falls on a day which is not
a Business Day, the payment due on such Maturity or Interest Payment Date will
be paid on the next succeeding  Business Day with the same force and effect as
if made on such Maturity or Interest  Payment Date, as the case may be, and no
interest  shall  accrue with  respect to such  payment for the period from and
after such  Maturity or Interest  Payment  Date.  The  interest so payable and
punctually  paid or duly  provided  for on any  Interest  Payment Date will as
provided  in the  Indenture  be paid to the Person in whose name this Note (or
one or more Predecessor  Securities) is registered at the close of business on
the Regular  Record Date for such  Interest  Payment  Date.  Any such interest
which is payable, but not punctually paid or duly provided for on any Interest
Payment Date (herein called "Defaulted Interest"), shall forthwith cease to be
payable to the registered  Holder on such Regular Record Date, and may be paid
to the Person in whose name this Note (or one or more Predecessor  Securities)
is  registered  at the  close of  business  on a Special  Record  Date for the
payment of such Defaulted Interest to be fixed by the Trustee,  notice whereof
shall be given to the  Holder of this Note not less than 10 days prior to such
Special  Record Date,  or may be paid at any time in any other lawful  manner,
all as more fully provided in the Indenture.

         Payment of the principal of and interest on this Note will be made at
the Office or Agency of the Company maintained by the Company for such purpose
in the Borough of Manhattan, The City of New York, in such coin or currency of
the United  States of  America  as at the time of payment is legal  tender for
payment of public and private debts.

         Unless the certificate of authentication  hereon has been executed by
or on behalf of The Chase  Manhattan Bank, the Trustee for this Note under the
Indenture, or its successor thereunder,  by the manual signature of one of its
authorized officers,  this Note shall not be entitled to any benefit under the
Indenture or be valid or obligatory for any purpose.

         This  Note  is  one  of  a  duly   authorized   issue  of  Securities
(hereinafter  called  the  "Securities")  of  the  Company  designated  as its
Medium-Term Notes, Series B (the "Notes"). The Securities are issued and to be
issued  under an  indenture  (the  "Indenture")  dated as of  October 1, 1993,
between the Company and The Chase  Manhattan Bank  (successor by merger to The
Chase  Manhattan  Bank (National  Association))  (herein called the "Trustee,"
which term  includes any  successor  Trustee  under the  Indenture),  to which
Indenture and all indentures supplemental thereto reference is hereby made for
a statement of the respective  rights  thereunder of the Company,  the Trustee
and the  Holders  of the Notes and the  terms  upon  which the Notes are to be
authenticated  and  delivered.  The  terms of  individual  Notes may vary with
respect to interest  rates or interest rate formulas,  issue dates,  maturity,
redemption,  repayment,  currency of payment and  otherwise as provided in the
Indenture.

         The Notes are issuable  only in  registered  form without  coupons in
denominations,  unless  otherwise  specified  above,  of $1,000  and  integral
multiples  thereof.  As  provided  in the  Indenture  and  subject  to certain
limitations therein set forth, the Notes are exchangeable for a like aggregate
principal amount of Notes as requested by the Holder surrendering the same. If
(x)  the  Depository  is at any  time  unwilling  or  unable  to  continue  as
depository  and a successor  depository is not appointed by the Company within
60 days, (y) the Company  executes and delivers to the Trustee a Company Order
to the effect that this Note shall be  exchangeable or (z) an Event of Default
has occurred and is continuing  with respect to the Notes,  this Note shall be
exchangeable  for  Notes  in  definitive  form of like  tenor  and of an equal
aggregate principal amount, in authorized denominations. Such definitive Notes
shall be registered in such name or names as the Depository shall instruct the
Trustee.  If  definitive  Notes are so  delivered,  the  Company may make such
changes to the form of this Note as are necessary or  appropriate to allow for
the issuance of such definitive Notes.

         This Note is not subject to any sinking fund.

         This Note may be  subject  to  repayment  at the option of the Holder
prior to its Stated Maturity on any Holder's Optional  Repayment  Date(s),  if
any, indicated above. If no Optional Repayment Dates are set forth above, this
Note may not be so repaid  at the  option of the  Holder  hereof  prior to the
Stated Maturity.  On any Optional  Repayment Date this Note shall be repayable
in whole or in part in an  amount  equal to $1,000  or any  integral  multiple
thereof  (provided that any remaining  principal amount shall be an authorized
denomination) at the option of the Holder hereof at a repayment price equal to
100% of the principal  amount to be repaid,  together  with  interest  thereon
payable  to the date of  repayment.  For this Note to be repaid in whole or in
part at the option of the Holder hereof, this Note must be received,  with the
form entitled "Option to Elect Repayment" below duly completed, by the Trustee
at its office at 55 Water Street, Room 234, Corporate Trust Securities Window,
New York,  New York 10041 or such address which the Company shall from time to
time notify the Holder hereof ("Corporate Trust Office"), not more than 60 nor
less  than 30 days  prior to an  Optional  Repayment  Date.  This Note must be
received by the Trustee by 5:00 P.M.,  New York City time, on the last day for
giving such notice.  Exercise of such  repayment  option by the Holder  hereof
shall be irrevocable. In the event of payment of this Note in part only, a new
Note for the unpaid  portion  hereof shall be issued in the name of the Holder
hereof upon the surrender hereof.

         This Note may be redeemed  at the option of the Company  prior to its
Stated Maturity on any date on and after the Initial  Redemption Date, if any,
specified above (the "Redemption  Date"). If no Initial Redemption Date is set
forth above,  this Note may not be redeemed at the option of the Company prior
to the Stated Maturity. On and after the Initial Redemption Date, if any, this
Note may be  redeemed  at any  time in  whole or from  time to time in part in
increments of $1,000 (provided that any remaining principal amount shall be an
authorized  denomination)  at the  option  of the  Company  at the  applicable
Redemption  Price (as defined below) together with interest thereon payable to
the  Redemption  Date,  on notice given not more than 60 nor less than 30 days
prior to the Redemption  Date. In the event of redemption of this Note in part
only, a new Note for the unredeemed portion hereof shall be issued in the name
of the Holder hereof upon the surrender hereof.

         If this Note is  redeemable at the option of the Company prior to its
Stated  Maturity,  the  "Redemption  Price"  shall  initially  be the  Initial
Redemption  Percentage,  specified above, of the principal amount of this Note
to be redeemed and shall decline at each anniversary of the Initial Redemption
Date by the Annual Redemption Percentage  Reduction,  if any, specified above,
of the principal  amount to be redeemed until the Redemption  Price is 100% of
such principal amount.

         Interest  payments on this Note shall include  interest accrued from,
and including,  the Original Issue Date  indicated  above,  or the most recent
date to which  interest has been paid or duly provided for, to, but excluding,
the related Interest Payment Date or Maturity, as the case may be, at the rate
per annum stated on the face hereof until the principal  amount hereof is paid
or made available for payment. Unless otherwise specified above, interest will
be computed  on the basis of a 360-day  year of twelve  30-day  months for the
period specified hereunder.

         Any provision contained herein with respect to the calculation of the
rate of  interest  applicable  to this Note,  its  payment  dates or any other
matter  relating  hereto may be modified as specified in an Addendum  relating
hereto if so specified above or as set forth under Other  Provisions if so set
forth above.

         If an Event of Default (as defined in the Indenture)  with respect to
the Notes shall occur and be continuing, the principal of all the Notes may be
declared  due and  payable in the manner and with the effect  provided  in the
Indenture.

         The Indenture  permits,  with certain exceptions as therein provided,
the amendment  thereof and the  modification  of the rights and obligations of
the Company and the rights of the Holders of the  Securities of each series to
be  affected  under the  Indenture  at any time by the Company and the Trustee
with the consent of the Holders of 66 2/3% in  aggregate  principal  amount of
the Securities at the time Outstanding,  as defined in the Indenture,  of each
series affected thereby. The Indenture also contains provisions permitting the
Holders  of  specified  percentages  in  aggregate  principal  amount  of  the
Securities of each series at the time Outstanding, on behalf of the Holders of
all the  Securities  of each series,  to waive  compliance by the Company with
certain  provisions  of the  Indenture  and certain  past  defaults  under the
Indenture and their consequences.  Any such consent or waiver by the Holder of
this Note shall be conclusive and binding upon such Holder and upon all future
Holders of this Note and of any Note issued upon the  registration of transfer
hereof or in  exchange  herefor or in lieu hereof  whether or not  notation of
such consent or waiver is made upon this Note.

         No reference herein to the Indenture and no provision of this Note or
of the Indenture shall alter or impair the obligation of the Company, which is
absolute and unconditional,  to pay the principal of and interest on this Note
at the time, place and rate, and in the coin or currency, herein prescribed.

         As provided in the Indenture and subject to certain  limitations  set
forth  therein  and on the  face  hereof,  the  transfer  of this  Note may be
registered  on the Security  Register of the Company,  upon  surrender of this
Note for  registration  of  transfer at the office or agency of the Company in
the  Borough  of  Manhattan,  The  City of New  York,  duly  endorsed  by,  or
accompanied by a written  instrument of transfer in form  satisfactory  to the
Company duly executed by, the Holder hereof or by his attorney duly authorized
in writing,  and thereupon  one or more new Notes of authorized  denominations
and for the same aggregate  principal amount, will be issued to the designated
transferee or transferees.

         No service charge shall be made for any such registration of transfer
or exchange,  but the Company may require payment of a sum sufficient to cover
any tax or other governmental charge payable in connection therewith.

         Prior to due  presentment of this Note for  registration of transfer,
the Company, the Trustee and any agent of the Company or the Trustee may treat
the Person in whose name this Note is  registered  as the owner hereof for all
purposes,  whether or not this Note be overdue,  and neither the Company,  the
Trustee nor any such agent shall be affected by notice to the contrary.

         The  Indenture  and the Notes shall be governed by and  construed  in
accordance with the laws of the State of New York.

         All terms used in this Note which are defined in the Indenture  shall
have the meanings assigned to them in the Indenture.

         IN WITNESS WHEREOF, the Company has caused this instrument to be duly
executed,  manually  or in  facsimile,  and an  imprint  or  facsimile  of its
corporate seal to be imprinted hereon.


Dated: ____________


                                      MERRILL LYNCH & CO., INC.


                                      By: ________________________________
                                                  E. Stanley O'Neal
                                                  Executive Vice President and
                                                  Chief Financial Officer

[FACSIMILE OF SEAL]

                                      Attest:


                                      By:_________________________________
                                                  Andrea L. Dulberg
                                                  Secretary

CERTIFICATE OF AUTHENTICATION  
This is one of the  Securities of the 
series designated therein referred to in 
the within-mentioned Indenture.

THE CHASE MANHATTAN BANK,
       as Trustee



By: _______________________________________
             Authorized Officer


<PAGE>



                           OPTION TO ELECT REPAYMENT

     The undersigned hereby irrevocably request(s) and instruct(s) the Company
to repay this Note (or portion hereof  specified  below) pursuant to its terms
at a price equal to the principal  amount hereof together with interest to the
repayment date, to the undersigned, at
- ----------------------------------------------------------------------------
       (Please print or typewrite name and address of the undersigned)

         For this Note to be repaid, the Trustee must receive at its Corporate
Trust Office, or at such other place or places of which the Company shall from
time to time notify the Holder of this Note, not more than 60 nor less than 30
days prior to an Optional  Repayment  Date, if any,  shown on the face of this
Note,  this Note with this "Option to Elect  Repayment"  form duly  completed.
This Note notice  must be received by the Trustee by 5:00 P.M.,  New York City
time, on the last day for giving such notice.

         If less  than  the  entire  principal  amount  of this  Note is to be
repaid,  specify  the portion  hereof  (which  shall be in an amount  equal to
$1,000 or an integral multiple thereof,  provided that any remaining principal
amount is equal to an authorized denomination) which the Holder elects to have
repaid and specify the  denomination  or  denominations  (which shall be in an
amount equal to an authorized  denomination)  of the Notes to be issued to the
Holder for the  portion of this Note not being  repaid (in the  absence of any
such  specification,  one such Note will be issued for the  portion  not being
repaid).

$ _______________________    __________________________________________________
                             NOTICE:  The  signature  on  this Option  to Elect 
Date_____________________    Repayment must correspond with the name as written
                             upon  the  face of  this Note in every particular, 
                             without alterationor enlargement or any change 
                             whatever


<PAGE>


                           ASSIGNMENT/TRANSFER FORM


         FOR VALUE RECEIVED the undersigned  registered Holder hereby sell(s),
assign(s) and transfer(s) unto 
(insert Taxpayer Identification No.) _________________________________________
______________________________________________________________________________
______________________________________________________________________________
(Please print or typewrite name and address including postal zip code of 
assignee)
______________________________________________________________________________
the within Note and all rights thereunder, hereby irrevocably constituting and 
appointing ________________________________________ attorney to transfer  said 
Note  on  the  books  of  the  Company  with full  power  of substitution in the
premises.


Date ____________________    _________________________________________________
                             NOTICE: The signature of the registered registered
                             Holder to this assignment  must  correspond  with 
                             the name as  written  upon the face of the within 
                             instrument in every particular, without alteration
                             or enlargement or any change whatsoever.


<PAGE>



<PAGE>
                                                                 Exhibit 4(mm)

                     FLOATING RATE GLOBAL MEDIUM-TERM NOTE

THIS NOTE IS A GLOBAL  NOTE WITHIN THE  MEANING OF THE  INDENTURE  HEREINAFTER
REFERRED  TO AND IS  REGISTERED  IN THE  NAME  OF A  DEPOSITORY  OR A  NOMINEE
THEREOF.  UNLESS  AND UNTIL IT IS  EXCHANGED  IN WHOLE OR IN PART FOR NOTES IN
CERTIFICATED  FORM, THIS NOTE MAY NOT BE TRANSFERRED  EXCEPT AS A WHOLE BY THE
DEPOSITORY TRUST COMPANY (THE  "DEPOSITORY") TO A NOMINEE OF THE DEPOSITORY OR
BY THE  DEPOSITORY OR ANY SUCH NOMINEE TO A SUCCESSOR  DEPOSITORY OR A NOMINEE
OF SUCH SUCCESSOR  DEPOSITORY.  UNLESS THIS NOTE IS PRESENTED BY AN AUTHORIZED
REPRESENTATIVE OF THE DEPOSITORY, TO THE COMPANY OR ITS AGENT FOR REGISTRATION
OF TRANSFER,  EXCHANGE OR PAYMENT,  AND ANY NOTE ISSUED IS  REGISTERED  IN THE
NAME OF CEDE & CO.  OR IN  SUCH  OTHER  NAME  AS  REQUESTED  BY AN  AUTHORIZED
REPRESENTATIVE  OF THE DEPOSITORY (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO
SUCH OTHER  ENTITY AS IS  REQUESTED  BY AN  AUTHORIZED  REPRESENTATIVE  OF THE
DEPOSITORY),  ANY TRANSFER,  PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF,  CEDE
& CO., HAS AN INTEREST HEREIN.

REGISTERED                                                PRINCIPAL AMOUNT
No. BFLR ______________      CUSIP No. ______________     $___________________

                           MERRILL LYNCH & CO., INC.
                               MEDIUM-TERM NOTE,
                                   SERIES B
                                (Floating Rate)

INTEREST RATE BASIS:     ORIGINAL ISSUE DATE:           STATED MATURITY:

INDEX MATURITY:          INITIAL INTEREST RATE:         SPREAD:

INITIAL INTEREST         REGULAR RECORD DATE:           INTEREST PAYMENT DATES:
RESET DATE:              (Fifteen days prior to the
                         applicable Interest Payment
                         Date, unless otherwise 
                         specified)

SPREAD MULTIPLIER:                                      INTEREST RESET DATES:

MAXIMUM INTEREST RATE:          MINIMUM INTEREST RATE:  INITIAL REDEMPTION DATE:

INITIAL REDEMPTION PERCENTAGE:  ANNUAL REDEMPTION       OPTIONAL REPAYMENT
                                PERCENTAGE REDUCTION:   DATE(S):

CALCULATION AGENT:                                      IF INTEREST RATE BASIS 
(Merrill Lynch, Pierce,                                 IS LIBOR: 
Fenner & Smith Incorporated,                            INDEX CURRENCY:
unless otherwise specified)
                                                        DESIGNATED LIBOR PAGE:
                                                        : Reuters Page:  _____
                                                        : Telerate Page: _____


INTEREST CALCULATION:                                   DAY COUNT CONVENTION
:Regular Floating Rate Note                             : Actual/360 for the
:Floating Rate/Fixed Rate                                 period from    
   Fixed Rate Commencement Date:                          to       .
   Fixed Interest Rate:                                 Actual/Actual to the  
:Inverse Floating Rate Note                             period from     to    .
   Fixed Interest Rate:

ADDENDUM ATTACHED:                                      DENOMINATIONS:
: Yes                                                   (Integral multiples of 
                                                        $1,000, unless otherwise
: No

IF INTEREST RATE BASIS                                  OTHER PROVISIONS:
IS PRIME RATE:
 : Prime Rate--Major Ban
 : Prime Rate--H.15

IF INTEREST RATE BASIS IS CMT 
RATE:
 : Designated CMT Telerate Page is 7051
 : Designated CMT Telerate Page is 7052
    : Weekly Average
    : Monthly Average
 : Designated CMT Maturity Index:


<PAGE>


         MERRILL LYNCH & CO.,  INC., a Delaware  corporation  ("Issuer" or the
"Company," which terms include any successor  corporation  under the Indenture
hereinafter referred to), for value received, hereby promises to pay to CEDE &
CO., or registered assigns, the principal sum of

DOLLARS on the Stated Maturity  specified above (except to the extent redeemed
or repaid prior to the Stated Maturity Date), and to pay interest thereon,  at
a rate per annum equal to the Initial  Interest Rate specified above until the
Initial Interest Reset Date specified above and thereafter at a rate per annum
determined in accordance with the provisions  hereof and any Addendum relating
hereto  depending upon the Interest Rate Basis or Bases,  and such other terms
specified above, until the principal hereof is paid or duly made available for
payment.  Reference herein to "this Note",  "hereof",  "herein" and comparable
terms shall include an Addendum hereto if an Addendum is specified above.

         The Company will pay interest on each Interest Payment Date specified
above,  commencing on the first  Interest  Payment Date  specified  above next
succeeding the Original Issue Date specified above, and on the Stated Maturity
or any Redemption Date or Optional Repayment Date (as defined below) (the date
of each such Stated Maturity,  Redemption Date and Optional Repayment Date and
the date on which  principal or an installment of principal is due and payable
by declaration  of  acceleration  pursuant to the Indenture  being referred to
hereinafter as a "Maturity"  with respect to principal  payable on such date);
provided, however, that if the Original Issue Date is between a Regular Record
Date  (as  defined  below)  and the next  succeeding  Interest  Payment  Date,
interest payments will commence on the second Interest Payment Date succeeding
the Original Issue Date; and provided,  further,  that if an Interest  Payment
Date (other than an Interest  Payment  Date at  Maturity)  would fall on a day
that is not a Business  Day (as defined  below),  such  Interest  Payment Date
shall be postponed to the following day that is a Business Day, except that in
the case the Interest Rate Basis is LIBOR,  as indicated  above,  if such next
Business Day falls in the next  calendar  month,  such  Interest  Payment Date
shall be the next  preceding  day that is a Business  Day.  Except as provided
above,  interest  payments  will be made on the Interest  Payment  Dates shown
above.  Unless  otherwise  specified above, the "Regular Record Date" shall be
the  date 15  calendar  days  (whether  or not a  Business  Day)  prior to the
applicable  Interest Payment Date.  Interest on this Note will accrue from and
including the Original Issue Date  specified  above,  at the rates  determined
from time to time as specified  herein,  until the  principal  hereof has been
paid or made  available for payment.  If the Maturity  falls on a day which is
not a Business Day as defined below,  the payment due on such Maturity will be
paid on the next succeeding  Business Day with the same force and effect as if
made on such  Maturity  and no  interest  shall  accrue  with  respect to such
payment for the period from and after such  Maturity.  The interest so payable
and punctually paid or duly provided for on any Interest  Payment Date will as
provided  in the  Indenture  be paid to the Person in whose name this Note (or
one or more Predecessor  Securities) is registered at the close of business on
the Regular  Record Date for such  Interest  Payment  Date.  Any such interest
which is payable, but not punctually paid or duly provided for on any Interest
Payment Date (herein called "Defaulted Interest"), shall forthwith cease to be
payable to the registered  Holder on such Regular Record Date, and may be paid
to the Person in whose name this Note (or one or more Predecessor  Securities)
is  registered  at the  close of  business  on a Special  Record  Date for the
payment of such Defaulted Interest to be fixed by the Trustee,  notice whereof
shall be given to the  Holder of this Note not less than 10 days prior to such
Special  Record Date,  or may be paid at any time in any other lawful  manner,
all as more fully provided in the Indenture.

         Payment of the principal of and interest on this Note will be made at
the Office or Agency of the Company maintained by the Company for such purpose
in the Borough of Manhattan, The City of New York, in such coin or currency of
the United  States of  America  as at the time of payment is legal  tender for
payment of public and private debts.

         Unless the certificate of authentication  hereon has been executed by
or on behalf of The Chase  Manhattan  Bank,  the Trustee  with  respect to the
Notes  under  the  Indenture,  or its  successor  thereunder,  by  the  manual
signature of one of its authorized  officers,  this Note shall not be entitled
to any benefit under the Indenture or be valid or obligatory for any purpose.

         This  Note  is  one  of  a  duly   authorized   issue  of  Securities
(hereinafter  called  the  "Securities")  of  the  Company  designated  as its
Medium-Term Notes, Series B (the "Notes"). The Securities are issued and to be
issued  under an  indenture  (the  "Indenture")  dated as of  October 1, 1993,
between the Company and The Chase  Manhattan Bank  (successor by merger to The
Chase  Manhattan  Bank (National  Association))  (herein called the "Trustee",
which term  includes any  successor  Trustee  under the  Indenture),  to which
Indenture and all indentures supplemental thereto reference is hereby made for
a statement of the respective  rights  thereunder of the Company,  the Trustee
and the  Holders  of the Notes and the  terms  upon  which the Notes are to be
authenticated  and  delivered.  The  terms of  individual  Notes may vary with
respect to interest  rates or interest rate formulas,  issue dates,  maturity,
redemption,  repayment,  currency of payment and  otherwise as provided in the
Indenture.

         The Notes are issuable  only in  registered  form without  coupons in
denominations  of,  unless  otherwise  specified  above,  $1,000 and  integral
multiples  thereof.  As  provided  in the  Indenture  and  subject  to certain
limitations therein set forth, the Notes are exchangeable for a like aggregate
principal amount of Notes as requested by the Holder surrendering the same. If
(x)  the  Depository  is at any  time  unwilling  or  unable  to  continue  as
depository  and a successor  depository is not appointed by the Company within
60 days, (y) the Company  executes and delivers to the Trustee a Company Order
to the effect that this Note shall be  exchangeable or (z) an Event of Default
has occurred and is continuing  with respect to the Notes,  this Note shall be
exchangeable  for  Notes  in  definitive  form of like  tenor  and of an equal
aggregate principal amount, in authorized denominations. Such definitive Notes
shall be registered in such name or names as the Depository shall instruct the
Trustee.  If  definitive  Notes are so  delivered,  the  Company may make such
changes to the form of this Note as are necessary or  appropriate to allow for
the issuance of such definitive Notes.

         This Note is not subject to any sinking fund.

         This Note may be  subject  to  repayment  at the option of the Holder
prior to its Stated Maturity on the Holder's Optional  Repayment  Date(s),  if
any, indicated on the face hereof. If no Holder's Optional Repayment Dates are
set forth on the face hereof,  this Note may not be so repaid at the option of
the Holder  hereof  prior to the Stated  Maturity.  On any  Holder's  Optional
Repayment  Date, this Note shall be repayable in whole or in part in an amount
equal to $1,000 or integral  multiples  thereof  (provided  that any remaining
principal  amount shall be an  authorized  denomination)  at the option of the
Holder hereof at a repayment price equal to 100% of the principal amount to be
repaid,  together with interest thereon payable to the date of repayment.  For
this Note to be repaid in whole or in part at the option of the Holder hereof,
this Note must be received, with the form entitled "Option to Elect Repayment"
below duly  completed,  by the Trustee at its office at 55 Water Street,  Room
234,  Corporate  Trust  Securities  Window,  New York,  New York 10041 or such
address  which the  Company  shall from time to time notify the Holders of the
Medium-Term  Notes (the "Corporate  Trust Office"),  not more than 60 nor less
than 30 days prior to a Holder's  Optional  Repayment  Date. This Note must be
received by the Trustee by 5:00 P.M.,  New York City time, on the last day for
giving such notice.  Exercise of such  repayment  option by the Holder  hereof
shall be irrevocable. In the event of payment of this Note in part only, a new
Note for the unpaid  portion  hereof shall be issued in the name of the Holder
hereof upon the surrender hereof.

         This Note may be redeemed  at the option of the Company  prior to its
Stated Maturity on any date on and after the Initial  Redemption Date, if any,
specified on the face hereof (the "Redemption Date"). If no Initial Redemption
Date is set forth on the face  hereof,  this Note may not be  redeemed  at the
option of the Company prior to the Stated  Maturity.  On and after the Initial
Redemption  Date,  if any,  this Note may be  redeemed at any time in whole or
from  time to time in part in  increments  of  $1,000  or  integral  multiples
thereof  (provided that any remaining  principal amount shall be an authorized
denomination) at the option of the Company at the applicable  Redemption Price
(as defined below)  together with interest  thereon  payable to the Redemption
Date,  on notice  given  not more  than 60 nor less than 30 days  prior to the
Redemption  Date.  In the event of redemption of this Note in part only, a new
Note for the  unredeemed  portion  hereof  shall be  issued in the name of the
Holder hereof upon the surrender hereof.

         If this Note is  redeemable at the option of the Company prior to its
Stated  Maturity,  the  "Redemption  Price"  shall  initially  be the  Initial
Redemption  Percentage,  specified on the face hereof, of the principal amount
of this Note to be  redeemed  and shall  decline  at each  anniversary  of the
Initial Redemption Date by the Annual Redemption Percentage Reduction, if any,
specified on the face hereof, of the principal amount to be redeemed until the
Redemption Price is 100% of such principal amount.

         The interest rate borne by this Note shall be determined as follows:

                  1. If this Note is  designated  as a Regular  Floating  Rate
         Note above,  then,  except as described  below,  this Note shall bear
         interest  at the  rate  determined  by  reference  to the  applicable
         Interest  Rate  Basis  or Bases  shown  above  (1) plus or minus  the
         applicable  Spread,  if any,  and/or (2) multiplied by the applicable
         Spread  Multiplier,  if any,  specified  and  applied  in the  manner
         described  above.  Commencing on the first  Interest  Reset Date, the
         rate at which  interest  on this Note is payable  will be reset as of
         each Interest Reset Date specified above; provided, however, that the
         interest  rate in effect for the period from the Original  Issue Date
         to the first Interest Reset Date will be the Initial Interest Rate.

                  2. If this Note is designated as a Floating  Rate/Fixed Rate
         Note above,  then,  except as described  below,  this Note shall bear
         interest  at the  rate  determined  by  reference  to the  applicable
         Interest  Rate  Basis  or Bases  shown  above  (1) plus or minus  the
         applicable  Spread,  if any,  and/or (2) multiplied by the applicable
         Spread  Multiplier,  if any,  specified  and  applied  in the  manner
         described  above.  Commencing on the first  Interest  Reset Date, the
         rate at which  interest  on this Note is payable  will be reset as of
         each Interest Reset Date specified above; provided, however, that (i)
         the interest  rate in effect for the period from the date of issue to
         the first Interest Reset Date will be the Initial  Interest Rate, and
         (ii) the interest rate in effect  commencing on, and  including,  the
         date on which  interest  begins to accrue  on a fixed  rate  basis to
         Maturity  will be the Fixed  Interest  Rate, if the rate is specified
         above,  or if no Fixed Interest Rate is specified,  the interest rate
         in effect on the Floating Rate/Fixed Rate Note on the day immediately
         preceding the date on which interest begins to accrue on a fixed rate
         basis.

                  3. If this Note is  designated  as an Inverse  Floating Rate
         Note above,  then,  except as  described  below,  this Note will bear
         interest equal to the Fixed  Interest Rate indicated  above minus the
         rate determined by reference to the applicable Interest Rate Basis or
         Bases shown above (1) plus or minus the  applicable  Spread,  if any,
         and/or (2) multiplied by the applicable  Spread  Multiplier,  if any,
         specified  and  applied  in the  manner  described  above;  provided,
         however,  that unless  otherwise  specified on the face  hereof,  the
         interest rate hereon will not be less than zero  percent.  Commencing
         on the first  Interest Reset Date, the rate at which interest on this
         Note is  payable  shall  be  reset  as of each  Interest  Reset  Date
         specified above; provided,  however, that the interest rate in effect
         for the period from the Original  Issue Date to the Initial  Interest
         Reset Date shall be the Initial Interest Rate.

                  4. Notwithstanding the foregoing, if this Note is designated
         above as having an Addendum  attached or as having  Other  Provisions
         apply,  the Note shall bear  interest  in  accordance  with the terms
         described in such Addendum or specified under Other Provisions.

         Except as provided  above,  the  interest  rate in effect on each day
shall  be (a) if  such  day is an  Interest  Reset  Date,  the  interest  rate
determined  as  of  the  Interest   Determination   Date  (as  defined  below)
immediately  preceding  such Interest  Reset Date or (b) if such day is not an
Interest  Reset  Date,  the  interest  rate  determined  as  of  the  Interest
Determination  Date immediately  preceding the immediately  preceding Interest
Reset  Date.  Each  Interest  Rate  Basis  shall  be the  rate  determined  in
accordance  with the applicable  provision  below.  If any Interest Reset Date
(which term  includes  the term first  Interest  Reset Date unless the context
otherwise  requires) would otherwise be a day that is not a Business Day, that
Interest  Reset Date shall be postponed to the next  succeeding  day that is a
Business  Day,  except that if an Interest  Rate Basis  specified  on the face
hereof  is  LIBOR  and the next  Business  Day  falls  in the next  succeeding
calendar month,  that Interest Reset Date shall be the  immediately  preceding
Business  Day. In addition,  if an Interest  Rate Basis  specified on the face
hereof  is the  Treasury  Rate  and  the  Interest  Determination  Date  would
otherwise fall on an Interest Reset Date,  then that Interest Reset Date shall
be postponed to the next succeeding Business Day.

         Unless otherwise  specified  above,  interest payable on this Note on
any  Interest  Payment  Date shall be the amount of interest  accrued from and
including the immediately  preceding Interest Payment Date in respect of which
interest  has been  paid  (or  from and  including  the  Original  Issue  Date
specified  above,  if no interest has been paid), to but excluding the related
Interest  Payment  Date;  provided,  however,  that the  interest  payments on
Maturity will include interest accrued to but excluding such Maturity.  Unless
otherwise  specified  above,  accrued  interest  hereon  shall  be  an  amount
calculated  by  multiplying  the face  amount  hereof by an  accrued  interest
factor.  The accrued  interest factor shall be computed by adding the interest
factor calculated for each day from the date of issue or from the last date to
which  interest  shall have been paid or duly  provided  for,  to the date for
which accrued interest is being calculated.  Unless otherwise specified above,
the  interest  factor  for each such day shall be  computed  by  dividing  the
interest  rate  applicable  to such day by 360,  if the Day  Count  Convention
specified above is "Actual/360" for the period specified  thereunder or by the
actual number of days in the year if the Day Count Convention  specified above
is "Actual/Actual" for the period specified  thereunder.  In the case of notes
for which the Interest Rate Basis is the CD Rate, the  Commercial  Paper Rate,
the Eleventh District Cost of Funds Rate, the Federal Funds Rate, LIBOR or the
Prime Rate, the interest  factor for each day will be computed by dividing the
interest  rate  applicable  to each day by 360. In the case of notes for which
the  Interest  Rate Basis is the CMT Rate or the Treasury  Rate,  the interest
factor for each day will be computed by dividing the interest rate  applicable
to each day by the actual number of days in the year. The interest  factor for
notes for which the interest rate is calculated  with reference to two or more
Interest Rate Bases will be calculated in each period in the same manner as if
only one of the applicable Interest Rate Bases applied.

         Unless otherwise  specified above, the "Interest  Determination Date"
with respect to the CD Rate, the CMT Rate and the Commercial  Paper Rate shall
be the second  Business Day preceding  each Interest Reset Date; the "Interest
Determination  Date" with respect to the Federal Funds Rate and the Prime Rate
shall be the Business Day immediately  preceding each Interest Reset Date; the
"Interest Determination Date" with respect to LIBOR shall be the second London
Business  Day (as defined  below)  preceding  each  Interest  Reset Date;  the
"Interest  Determination  Date" with respect to the Eleventh  District Cost of
Funds Rate shall be the last  working day of the month  immediately  preceding
each Interest  Reset Date on which the Federal Home Loan Bank of San Francisco
(the "FHLB of San Francisco")  publishes the Index (as defined below); and the
"Interest  Determination  Date" with respect to the Treasury Rate shall be the
day in the week in which the  related  Interest  Reset Date falls on which day
Treasury bills (as defined below) are normally  auctioned.  Treasury bills are
normally  sold at auction on Monday of each week,  unless  that day is a legal
holiday,  in which case the auction is normally held on the following Tuesday,
except  that  the  auction  may be held  on the  preceding  Friday;  provided,
however,  that if an auction is held on the Friday of the week  preceding  the
related Interest Reset Date, the related Interest  Determination Date shall be
such preceding Friday; and provided, further, that if an auction shall fall on
any Interest Reset Date, then the related Interest Reset Date shall instead be
the first  Business Day following  such auction.  If the interest rate of this
Note is determined  with  reference to two or more  Interest  Rate Bases,  the
Interest  Determination  Date  pertaining  to this  Note  will  be the  latest
Business Day which is at least two Business Days prior to such Interest  Reset
Date on which each  Interest Rate Basis shall be  determinable.  Each Interest
Rate Basis shall be determined  and compared on such date,  and the applicable
interest rate shall take effect on the related Interest Reset Date.

         Unless  otherwise   specified  above,  the  "Calculation   Date",  if
applicable,  pertaining to any Interest Determination Date will be the earlier
of (i) the tenth  calendar day after such Interest  Determination  Date or, if
such day is not a Business Day, the next succeeding  Business Day, or (ii) the
Business  Day  preceding  the  applicable  Interest  Payment  Date  or date of
Maturity,  as the case may be. All  calculations on this Note shall be made by
the calculation  agent  specified  above or such successor  thereto as is duly
appointed by the Company.

         All  percentages  resulting from any calculation on this Note will be
rounded to the nearest one hundred-thousandth of a percentage point, with five
one-millionths of a percentage point rounded upwards.  For example,  9.876545%
or .09876545 would be rounded to 9.87655% or .0987655. All dollar amounts used
in or resulting from such calculation will be rounded to the nearest cent with
one-half cent being rounded upward.

         As used herein,  "Business  Day" means any day, other than a Saturday
or Sunday, that is neither a legal holiday nor a day on which commercial banks
are authorized or required by law,  regulation or executive  order to close in
The City of New York;  provided,  however,  that,  with respect to  non-United
State dollar denominated Notes, such day is also not a day on which commercial
banks are  authorized  or required by law,  regulation  or executive  order to
close in the  Principal  Financial  Center  (as  hereinafter  defined)  of the
country issuing the Specified  Currency or, if the Specified Currency is EURO,
the day is also a day on which the  Trans-European  Automated  Real-Time Gross
Settlement Express Transfer (TARGET) System is open; provided,  further, that,
with respect to Notes as to which LIBOR is an applicable  Interest Rate Basis,
such day is also a London Business Day (as hereinafter defined).

         As used herein, "London Business Day" means a day on which commercial
banks are open for  business,  including  dealings  in the Index  Currency  in
London.


<PAGE>


         Determination  of CD Rate. If an Interest Rate Basis for this Note is
the CD Rate,  as  indicated  above,  the CD Rate  shall be  determined  on the
applicable  Interest  Determination  Date (a "CD Rate  Interest  Determination
Date"), as:

          (1)  the  rate on the  applicable  Interest  Determination  Date for
               negotiable United States dollar  certificates of deposit having
               the Index Maturity specified above published in H.15(519) under
               the heading "CDs (secondary market)", or

          (2)  if the rate referred to in clause (1) above is not so published
               by 3:00 P.M.,  New York City time,  on the related  calculation
               date, the rate on the applicable  Interest  Determination  Date
               for negotiable United States dollar  certificates of deposit of
               the Index Maturity  specified  above as published in H.15 Daily
               Update,  or other  recognized  electronic  source  used for the
               purpose of displaying  the applicable  rate,  under the caption
               "CDs (secondary market)", or

          (3)  if the rate  referred to in clause (2) is not so  published  by
               3:00 P.M., New York City time, on the related calculation date,
               the  rate  on  the  applicable   Interest   Determination  Date
               calculated by the  calculation  agent as the arithmetic mean of
               the secondary  market  offered rates as of 10:00 A.M., New York
               City time, on the applicable  Interest  Determination  Date, of
               three  leading  non-bank  dealers in  negotiable  United States
               dollar certificates of deposit in The City of New York selected
               by the  calculation  agent for negotiable  United States dollar
               certificates  of deposit of major  United  States  money center
               banks for negotiable  certificates  of deposit with a remaining
               maturity  closest to the Index Maturity  specified  above in an
               amount that is representative  for a single transaction in that
               market at that time, or

          (4)  if the  dealers  selected  by the  calculation  agent  are  not
               quoting as mentioned in clause (3) above, the CD rate in effect
               on the applicable Interest Determination Date.

         "H.15(519)"  means  the  weekly  statistical  release  designated  as
H.15(519),  or any successor publication,  published by the Board of Governors
of the Federal Reserve System.

         "H.15 Daily Update"  means the daily update of  H.15(519),  available
through  the  world-wide-web  site of the Board of  Governors  of the  Federal
Reserve  System  at   http://www.bog.frb.fed.us/releases/h15/update,   or  any
successor site or publication.

         Determination of CMT Rate. If an Interest Rate Basis for this Note is
the CMT Rate, as indicated  above,  the CMT Rate shall be determined as of the
applicable  Interest  Determination  Date (a "CMT Rate Interest  Determination
Date") as:

          (1)  the rate  displayed on the  Designated  CMT Telerate Page under
               the caption "...Treasury Constant Maturities... Federal Reserve
               Board Release H.15...  Mondays  Approximately 3:45 P.M.", under
               the column for the Designated CMT Maturity Index for:

                (a)      if the Designated CMT Telerate Page is 7051, the rate 
                         on the applicable Interest Determination Date, and

                (b)      if the  Designated  CMT  Telerate  Page is 7052,  the
                         weekly or the monthly  average,  as specified  above,
                         for  the  week or the  month,  as  applicable,  ended
                         immediately  preceding  the  week  or the  month,  as
                         applicable,    in   which   the   related    Interest
                         Determination Date falls, or

          (2)  if the rate referred to in clause (1) is no longer displayed on
               the relevant page or is not so displayed by 3:00 P.M., New York
               City  time,  on the  related  calculation  date,  the  treasury
               constant  maturity rate for the  Designated  CMT Maturity Index
               published in H.15(519), or

          (3)  if the rate referred to in clause (2) is no longer published or
               is not  published  by 3:00  P.M.,  New York City  time,  on the
               related  calculation  date, the treasury constant maturity rate
               for the Designated CMT Maturity  Index,  or other United States
               Treasury rate for the  Designated CMT Maturity  Index,  for the
               applicable  Interest  Determination  Date with  respect  to the
               applicable  Interest  Reset  Date as may then be  published  by
               either the Board of Governors of the Federal  Reserve System or
               the  United   States   Department  of  the  Treasury  that  the
               calculation  agent  determines  to be  comparable  to the  rate
               formerly  displayed on the  Designated  CMT  Telerate  Page and
               published in H.15(519), or

          (4)  if the rate referred to in clause (4) applicable information is
               not so  published  by 3:00  P.M.,  New York City  time,  on the
               applicable   calculation  date,  the  rate  on  the  applicable
               Interest Determination Date calculated by the calculation agent
               as a yield to  maturity,  based on the  arithmetic  mean of the
               secondary market offered rates as of  approximately  3:30 P.M.,
               New York City time, on the  applicable  Interest  Determination
               Date  reported,  according to their written  records,  by three
               leading primary United States government  securities dealers in
               The  City of New  York,  which  may  include  the  agent or its
               affiliates  (each,  a  "Reference  Dealer"),  selected  by  the
               calculation agent after eliminating the highest quotation,  or,
               in the event of equality,  one of the  highest,  and the lowest
               quotation or, in the event of equality,  one of the lowest, for
               the  most  recently  issued  direct   noncallable   fixed  rate
               obligations  of the United  States  ("Treasury  Notes") with an
               original  maturity of approximately the Designated CMT Maturity
               Index and a  remaining  term to  maturity of not less than such
               Designated CMT Maturity Index minus one year, or

          (5)  if the calculation  agent is unable to obtain three  applicable
               Treasury Note quotations as referred to in clause (4), the rate
               on the applicable Interest Determination Date calculated by the
               calculation   agent  as  a  yield  to  maturity  based  on  the
               arithmetic  mean of the  secondary  market  offered rates as of
               approximately  3:30 P.M., New York City time, on the applicable
               Interest  Determination  Date of three Reference Dealers in The
               City of New York  selected by the  calculation  agent from five
               Reference  Dealers  selected  by the  calculation  agent  after
               eliminating the highest quotation or, in the event of equality,
               one of the highest and the lowest quotation or, in the event of
               equality,  one  of the  lowest,  for  Treasury  Notes  with  an
               original  maturity  of the  number  of  years  that is the next
               highest to the  Designated  CMT Maturity  Index and a remaining
               term to maturity  closest to the  Designated CMT Maturity Index
               and in an amount of at least $100 million, or

          (6)  if three or four and not five of Reference Dealers are quoting
               as referred to in clause (5) above, the rate will be calculated
               by the calculation  agent as the arithmetic mean of the offered
               rates obtained and neither the highest nor the lowest of quotes
               will be eliminated, or

          (7)  if  fewer  than  three  Reference   Dealers   selected  by  the
               calculation  agent are quoting as  mentioned in clause (6), the
               rate in effect on the applicable Interest Determination Date.

                  If two Treasury Notes with an original maturity as described
         in clause (6) have remaining  terms to maturity  equally close to the
         Designated CMT Maturity Index, the calculation agent will obtain from
         five  Reference  Dealers  quotations  for the Treasury Notes with the
         shorter remaining term to maturity.

         "Designated CMT Telerate Page" means the display on Bridge  Telerate,
Inc. or any successor service on the page specified above or any other page as
may replace the  specified  page on that service for the purpose of displaying
Treasury  Constant  Maturities  as  reported in  H.15(519),  or, if no page is
specified above, page 7052.

         "Designated CMT Maturity Index" means the original period to maturity
of the U.S.  Treasury  securities,  either  1, 2, 3, 5, 7, 10, 20 or 30 years,
specified  above with respect to which the CMT Rate will be calculated  or, if
no maturity is specified above, 2 years.

         Determination of Commercial Paper Rate. If an Interest Rate Basis for
this Note is the  Commercial  Paper Rate, as indicated  above,  the Commercial
Paper Rate shall be determined on the applicable  Interest  Determination Date
(a "Commercial Paper Rate Interest Determination Date"), as:

          (1)  the Money Market Yield on the applicable Interest Determination
               Date of the rate for commercial paper having the Index Maturity
               specified  above  published  in  H.15(519)  under  the  caption
               "Commercial Paper-Nonfinancial", or

          (2)  if the rate described in clause (1) is not so published by 3:00
               P.M., New York City time, on the related  calculation date, the
               rate  on  the  applicable   Interest   Determination  Date  for
               commercial  paper  having the Index  Maturity  specified  above
               published in H.15 Daily Update, or other recognized  electronic
               source used for the purpose of displaying the applicable  rate,
               under the caption "Commercial Paper-Nonfinancial", or

          (3)  if the rate is referred to in clause (2) is not so published by
               3:00 P.M., New York City time, on the related calculation date,
               the  rate  on  the  applicable   Interest   Determination  Date
               calculated by the  calculation  agent as the Money Market Yield
               of the  arithmetic  mean of the offered rates at  approximately
               11:00  A.M.,  New York City time,  on the  applicable  Interest
               Determination  Date of three  leading  dealers of United States
               dollar  commercial  paper in The City of New  York,  which  may
               include  the  agent  and  its   affiliates,   selected  by  the
               calculation   agent  for  commercial  paper  having  the  Index
               Maturity  specified  above placed for industrial  issuers whose
               bond  rating  is "Aa",  or the  equivalent,  from a  nationally
               recognized statistical rating organization, or

         (4)      if the  dealers  selected by the  calculation  agent are not
                  quoting as  mentioned  in clause (3),  the rate in effect on
                  the applicable Interest Determination Date.

         "Money Market Yield" means a yield  calculated in accordance with the
following formula and expressed as a percentage:

Money Market Yield =                D x 360         x   100
                             ----------------------
                                360 - ( D x M )


where "D" refers to the applicable per annum rate for commercial  paper quoted
on a bank  discount  basis and  expressed as a decimal,  and "M" refers to the
actual  number of days in the  interest  period  for which  interest  is being
calculated.

         Eleventh  District  Cost of Funds Rate. If an Interest Rate Basis for
this Note is the Eleventh District Cost of Funds Rate, as indicated above, the
Eleventh  District Cost of Funds Rate shall be  determined  on the  applicable
Interest Determination Date (an "Eleventh District Cost of Funds Rate Interest
Determination Date"), and shall be:

          (1)  the rate equal to the monthly  weighted  average  cost of funds
               for the calendar month immediately preceding the month in which
               the applicable  Interest  Determination Date falls as set forth
               under the  caption  "11th  District"  on the  display on Bridge
               Telerate,  Inc.  or any  successor  service on page 7058 or any
               other page as may replace the  specified  page on that  service
               ("Telerate Page 7058") as of 11:00 A.M., San Francisco time, on
               the applicable Interest Determination Date, or

          (2)  if the rate  referred  to in  clause  (1) does  not  appear  on
               Telerate Page 7058 on the related Interest  Determination Date,
               the  monthly  weighted  average  cost of funds  paid by  member
               institutions  of the Eleventh  Federal Home Loan Bank  District
               that was most recently  announced  (the "Index") by the Federal
               Home  Loan Bank of San  Francisco  as the cost of funds for the
               calendar month  immediately  preceding the applicable  Interest
               Determination Date, or

          (3)  if the  Federal  Home  Loan  Bank  of San  Francisco  fails  to
               announce  the  Index  on  or  before  the  applicable  Interest
               Determination Date for the calendar month immediately preceding
               the applicable Interest  Determination Date, the rate in effect
               on the applicable Interest Determination Date.

         Determination  of Federal  Funds Rate.  If an Interest Rate Basis for
this Note is the Federal  Funds Rate,  as indicated  above,  the Federal Funds
Rate shall be  determined on the  applicable  Interest  Determination  Date (a
"Federal Funds Rate Interest Determination Date"), and shall be:

          (1)  the  rate on the  applicable  Interest  Determination  Date for
               United  States  dollar  federal funds as published in H.15(519)
               under the heading "Federal Funds (Effective)",  as displayed on
               Bridge Telerate,  Inc. or any successor  service on page 120 or
               any  other  page as may  replace  the  applicable  page on that
               service ("Telerate Page 120"), or

          (2)  if the rate  referred  to in  clause  (1) does  not  appear  on
               Telerate Page 120 or is not so published by 3:00 P.M., New York
               City time,  on the related  calculation  date,  the rate on the
               applicable Interest Determination Date for United States dollar
               federal  funds  published  in  H.15  Daily  Update,   or  other
               recognized electronic source used for the purpose of displaying
               the applicable rate, under the caption "Federal Funds/Effective
               Rate", or

          (3)  if the rate  referred to in clause (2) is not so  published  by
               3:00 P.M., New York City time, on the related calculation date,
               the  rate  on  the  applicable   Interest   Determination  Date
               calculated by the  calculation  agent as the arithmetic mean of
               the rates for the last  transaction in overnight  United States
               dollar  federal  funds  arranged  by three  leading  brokers of
               United States dollar federal funds  transactions in The City of
               New  York,  which  may  include  the  agent or its  affiliates,
               selected by the  calculation  agent before 9:00 A.M.,  New York
               City time, on the applicable Interest Determination Date, or

          (4)  if the  brokers  selected  by the  calculation  agent  are  not
               quoting as  mentioned  in clause (3), the rate in effect on the
               applicable Interest Determination Date.

         Determination  of LIBOR.  "LIBOR"  means  the  rate  determined by the
Calculation  Agent in accordance with the following provisions:

          (1)  if "LIBOR  Telerate"  is specified  above or if neither  "LIBOR
               Reuters" nor "LIBOR  Telerate" is specified above as the method
               for calculating  LIBOR,  LIBOR will be the rate for deposits in
               the LIBOR Currency, as defined below, having the Index Maturity
               specified  above,  commencing on the second London Business Day
               immediately  following  that Interest  Determination  Date that
               appears on the Designated  LIBOR Page as of 11:00 A.M.,  London
               time, on the applicable Interest Determination Date, or

          (2)  if  "LIBOR  Reuters"  is  specified  above,  LIBOR  will be the
               arithmetic  mean of the offered rates for deposits in the LIBOR
               Currency having the Index Maturity specified above,  commencing
               on the second London  Business Day  immediately  following that
               Interest  Determination  Date,  that appear,  on the Designated
               LIBOR Page  specified  above as of 11:00 A.M.,  London time, on
               the applicable  Interest  Determination Date. If the Designated
               LIBOR Page by its terms  provides only for a single rate,  then
               the single rate will be used, or

          (3)  with respect to a LIBOR  Interest  Determination  Date on which
               fewer than two offered rates appear, or no rate appears, as the
               case may be,  on the  designated  LIBOR  Page as  specified  in
               clauses (1) and (2),  the rate  calculated  by the  calculation
               agent  as  the  arithmetic  mean  of at  least  two  quotations
               obtained  by  the  calculation   agent  after   requesting  the
               principal London offices of each of four major reference banks,
               which  may  include  affiliates  of the  agent,  in the  London
               interbank  market to  provide  the  calculation  agent with its
               offered  quotation  for deposits in the LIBOR  Currency for the
               period of the Index Maturity specified above, commencing on the
               second London Business Day immediately following the applicable
               Interest  Determination  Date,  to prime  banks  in the  London
               interbank market at approximately  11:00 A.M.,  London time, on
               the applicable  Interest  Determination Date and in a principal
               amount that is representative  for a single  transaction in the
               applicable LIBOR Currency in that market at that time, or

          (4)  if fewer than two  quotations  referred to in clause (2) are so
               provided,  the rate on the  applicable  Interest  Determination
               Date calculated by the calculation agent as the arithmetic mean
               of  the  rates  quoted  at  approximately  11:00  A.M.,  in the
               applicable  Principal  Financial  Center(s),  on the applicable
               Interest  Determination  Date by three major  banks,  which may
               include  affiliates of the agent,  in the applicable  Principal
               Financial Center selected by the calculation agent for loans in
               the LIBOR Currency to leading European banks,  having the Index
               Maturity  specified  designated above and in a principal amount
               that  is  representative   for  a  single  transaction  in  the
               applicable LIBOR Currency in that market at that time, or

          (5)  if the  banks so  selected  by the  calculation  agent  are not
               quoting as  mentioned  in clause (4), the rate in effect on the
               applicable Interest Determination Date.

               "LIBOR  Currency"  means the  currency  specified  above as to 
               which LIBOR will be calculated or, if no currency is specified 
               above, United States dollars.

         "Designated LIBOR Page" means either:

o    if "LIBOR  Telerate" is designated  above or neither "LIBOR  Reuters" nor
     "LIBOR Telerate" is specified above as the method for calculating  LIBOR,
     the display on Bridge Telerate, Inc. or any successor service on the page
     specified  in such  pricing  supplement  or any page as may  replace  the
     specified  page on that service for the purpose of displaying  the London
     interbank rates of major banks for the applicable LIBOR Currency, or

o    if "LIBOR Reuters" is specified  above, the display on the Reuter Monitor
     Money Rates Service or any successor  service on the page specified above
     or any other page as may replace the  specified  page on that service for
     the purpose of displaying the London  interbank  rates of major banks for
     the applicable LIBOR Currency.

     Determination  of Prime Rate.  "Prime  Rate"  means,  with respect to any
Interest Determination Date relating to a Prime Rate Note or any Floating Rate
Note for which the interest  rate is  determined  with  reference to the Prime
Rate (a "Prime Rate Interest Determination Date"), the"Prime Rate" means:

          (1)  the  rate  on the  applicable  Interest  Determination  Date as
               published in H.15(519) under the heading "Bank Prime Loan", or

          (2)  if the rate  referred to in clause (1) is not so  published  by
               3:00 P.M., New York City time, on the related calculation date,
               the  rate  on  the  applicable   Interest   Determination  Date
               published  in  H.15  Daily  Update,  or such  other  recognized
               electronic  source  used  for the  purpose  of  displaying  the
               applicable rate under the caption "Bank Prime Loan", or

          (3)  if the rate  referred to in clause (2) is not so  published  by
               3:00 P.M., New York City time, on the related calculation date,
               the rate calculated by the calculation  agent as the arithmetic
               mean of the rates of interest  publicly  announced  by at least
               four banks that appear on the Reuters Screen US PRIME 1 Page as
               the  particular  bank's  prime rate or base  lending rate as of
               11:00  A.M.,  New York City time,  on the  applicable  Interest
               Determination Date, or

          (4)  if fewer than four rates  described in clause (2) by 3:00 P.M.,
               New York City time, on the related  calculation  date, the rate
               on the applicable Interest Determination Date calculated by the
               calculation  agent as the arithmetic mean of the prime rates or
               base lending  rates quoted on the basis of the actual number of
               days in the year  divided by a 360-day  year as of the close of
               business on the applicable Interest Determination Date by three
               major banks,  which may include affiliates of the agent, in The
               City of New York selected by the calculation agent, or

          (5)  if the banks selected by the calculation  agent are not quoting
               as  mentioned  in  clause  (4),  the  rate  in  effect  on  the
               applicable Interest Determination Date.

         "Reuters  Screen US PRIME 1 Page"  means the  display  on the  Reuter
Monitor Money Rates Service or any successor  service on the "US PRIME 1" Page
or  other  page as may  replace  the US PRIME 1 Page on such  service  for the
purpose of displaying prime rates or base lending rates of major United States
banks.

Determination of Treasury Rate. If an Interest Rate Basis for this Note is the
Treasury  Rate, as specified  above,  the Treasury Rate shall be determined on
the  applicable  Interest   Determination  Date  (a  "Treasury  Rate  Interest
Determination Date") "Treasury Rate" means:

          (1)  the  rate  from the  auction  held on the  applicable  Interest
               Determination Date (the "Auction") of direct obligations of the
               United  States  ("Treasury  Bills")  having the Index  Maturity
               specified  above  under the  caption  "INVESTMENT  RATE" on the
               display on Bridge  Telerate,  Inc. or any successor  service on
               page  56 or any  other  page  as may  replace  page  56 on that
               service  ("Telerate  Page 56") or page 57 or any other  page as
               may replace page 57 on that service ("Telerate Page 57"), or

          (2)  if the rate described in clause (1) is not so published by 3:00
               P.M., New York City time, on the related  calculation date, the
               Bond Equivalent  Yield of the rate for the applicable  Treasury
               Bills as published in H.15 Daily  Update,  or other  recognized
               electronic  source  used  for the  purpose  of  displaying  the
               applicable   rate,   under   the   caption   "U.S.   Government
               Securities/Treasury Bills/Auction High", or

          (3)  if the rate described in clause (2) is not so published by 3:00
               P.M., New York City time, on the related  calculation date, the
               Bond  Equivalent  Yield of the auction  rate of the  applicable
               Treasury Bills announced by the United States Department of the
               Treasury, or

          (4)  in the event  that the rate  referred  to in clause  (3) is not
               announced by the United States  Department of the Treasury,  or
               if the Auction is not held,  the Bond  Equivalent  Yield of the
               rate on the applicable Interest  Determination Date of Treasury
               Bills having the Index Maturity  specified  above  published in
               H.15(519)     under    the     caption     "U.S.     Government
               Securities/Treasury Bills/Secondary Market", or

          (5)  if the rate  referred to in clause (4) is not so  published  by
               3:00 P.M., New York City time, on the related calculation date,
               the rate on the applicable  Interest  Determination Date of the
               applicable Treasury Bills as published in H.15 Daily Update, or
               other  recognized  electronic  source  used for the  purpose of
               displaying  the  applicable   rate,  under  the  caption  "U.S.
               Government Securities/Treasury Bills/Secondary Market", or

          (6)  if the rate  referred to in clause (5) is not so  published  by
               3:00 P.M., New York City time, on the related Calculation Date,
               the  rate  on  the  applicable   Interest   Determination  Date
               calculated  by the  calculation  agent as the  Bond  Equivalent
               Yield of the arithmetic mean of the secondary market bid rates,
               as of  approximately  3:30  P.M.,  New York City  time,  on the
               applicable Interest Determination Date, of three primary United
               States  government  securities  dealers,  which may include the
               agent or its affiliates, selected by the calculation agent, for
               the issue of Treasury Bills with a remaining  maturity  closest
               to the Index Maturity specified above, or

          (7)  if the  dealers  selected  by the  calculation  agent  are  not
               quoting as  mentioned  in clause (6), the rate in effect on the
               applicable Interest Determination Date.

         "Bond  Equivalent  Yield" means a yield calculated in accordance with
the following formula and expressed as a percentage:

                                           D x N
Bond Equivalent Yield =  ---------------------------------------    x    100
                                    360 - ( D x M )

where "D" refers to the applicable per annum rate for Treasury Bills quoted on
a bank discount  basis,  "N" refers to 365 or 366, as the case may be, and "M"
refers to the actual number of days in the interest  period for which interest
is being calculated.

         Any provisions  contained herein with respect to the determination of
one or more Interest  Rate Bases,  the  specification  of one or more Interest
Rate Bases,  calculation  of the Interest Rate  applicable  to this Note,  its
payment  dates  the  stated   maturity   date,  any  redemption  or  repayment
provisions,  or any other matter  relating hereto may be modified by the terms
as specified above under "Other  Provisions" or in an Addendum relating hereto
if so specified above.

         Notwithstanding the foregoing,  the interest rate hereon shall not be
greater  than the  Maximum  Interest  Rate,  if any,  or less than the Minimum
Interest Rate, if any,  specified above. The Calculation Agent shall calculate
the interest  rate hereon in  accordance  with the foregoing on or before each
Calculation  Date. The Company hereby  covenants for the benefit of the Holder
hereof,  to the extent  permitted by applicable law, not to claim  voluntarily
the benefits of any laws  concerning  usurious rates of interest  against such
Holder.

         Unless  otherwise  above,  Merrill  Lynch,  Pierce,  Fenner  &  Smith
Incorporated  will be the  "Calculation  Agent".  At the request of the Holder
hereof,  the Calculation Agent shall provide to the Holder hereof the interest
rate hereon then in effect and, if  determined,  the interest rate which shall
become effective as of the next Interest Reset Date with respect to this Note.

         If an Event of Default (as defined in the Indenture)  with respect to
the Notes shall occur and be continuing, the principal of all the Notes may be
declared  due and  payable in the manner and with the effect  provided  in the
Indenture.

         The Indenture  permits,  with certain exceptions as therein provided,
the amendment  thereof and the  modification  of the rights and obligations of
the Company and the rights of the Holders of the  Securities of each series to
be  affected  under the  Indenture  at any time by the Company and the Trustee
with the consent of the Holders of 66 2/3% in  aggregate  principal  amount of
the Securities at any time Outstanding,  as defined in the Indenture,  of each
series affected thereby. The Indenture also contains provisions permitting the
Holders  of  specified  percentages  in  aggregate  principal  amount  of  the
Securities of each series at the time Outstanding, on behalf of the Holders of
all the  Securities  of each series,  to waive  compliance by the Company with
certain  provisions  of the  Indenture  and certain  past  defaults  under the
Indenture and their consequences.  Any such consent or waiver by the Holder of
this Note shall be conclusive and binding upon such Holder and upon all future
Holders of this Note and of any Note issued upon the  registration of transfer
hereof or in  exchange  herefor or in lieu hereof  whether or not  notation of
such consent or waiver is made upon this Note.

         No reference herein to the Indenture and no provision of this Note or
of the Indenture shall alter or impair the obligation of the Company, which is
absolute and unconditional,  to pay the principal of and interest on this Note
at the time, place and rate, and in the coin or currency, herein prescribed.

         As provided in the Indenture and subject to certain  limitations  set
forth  therein  and on the  face  hereof,  the  transfer  of this  Note may be
registered  on the Security  Register of the Company,  upon  surrender of this
Note for  registration  of  transfer at the office or agency of the Company in
the  Borough  of  Manhattan,  The  City of New  York,  duly  endorsed  by,  or
accompanied by a written  instrument of transfer in form  satisfactory  to the
Company duly executed by, the Holder hereof or by his attorney duly authorized
in writing,  and thereupon  one or more new Notes of authorized  denominations
and for the same aggregate  principal amount, will be issued to the designated
transferee or transferees.

         No service charge shall be made for any such registration of transfer
or exchange,  but the Company may require payment of a sum sufficient to cover
any tax or other governmental charge payable in connection therewith.

         Prior to due  presentment of this Note for  registration of transfer,
the Company, the Trustee and any agent of the Company or the Trustee may treat
the Person in whose name this Note is  registered  as the owner hereof for all
purposes,  whether or not this Note be overdue,  and neither the Company,  the
Trustee nor any such agent shall be affected by notice to the contrary.

         The  Indenture  and the Notes shall be governed by and  construed  in
accordance with the laws of the State of New York.

         All terms used in this Note which are defined in the Indenture  shall
have the meanings assigned to them in the Indenture.

<PAGE>

         IN WITNESS WHEREOF, the Company has caused this instrument to be duly
executed,  manually  or in  facsimile,  and an  imprint  or  facsimile  of its
corporate seal to be imprinted hereon.


Dated: ____________


                                       MERRILL LYNCH & CO., INC.


                                       By:___________________________________ 
                                                    E. Stanley O'Neal
                                                    Executive Vice President and
                                                    Chief Financial Officer

[FACSIMILE OF SEAL]

                                       Attest:


                                       By: __________________________________  
                                                   Andrea L. Dulberg
                                                   Secretary


CERTIFICATE OF AUTHENTICATION 
This is one of the  Securities of the 
series designated therein referred to 
in the within-mentioned Indenture.

THE CHASE MANHATTAN BANK,
                as Trustee




By: ________________________________
          Authorized Officer


<PAGE>



                           OPTION TO ELECT REPAYMENT

         The  undersigned  hereby  irrevocably  request(s) and instruct(s) the
Company to repay this Note (or portion hereof specified below) pursuant to its
terms at a price equal to the principal  amount hereof  together with interest
to the repayment date, to the undersigned, at_________________________________
______________________________________________________________________________
       (Please print or typewrite name and address of the undersigned)

         For this Note to be repaid, the Trustee must receive at its Corporate
Trust Office, or at such other place or places of which the Company shall from
time to time notify the Holder of this Note, not more than 60 nor less than 30
days prior to an Optional  Repayment  Date, if any,  shown on the face of this
Note,  this Note with this "Option to Elect  Repayment"  form duly  completed.
This Note must be received by the Trustee by 5:00 P.M., New York City time, on
the last day for giving such notice.

         If less  than  the  entire  principal  amount  of this  Note is to be
repaid,  specify  the portion  hereof  (which  shall be in an amount  equal to
$1,000 or an integral multiple thereof,  provided that any remaining principal
amount shall be an  authorized  denomination)  which the Holder elects to have
repaid and specify the  denomination  or  denominations  (which shall be in an
amount equal to an authorized  denomination)  of the Notes to be issued to the
Holder for the  portion of this Note not being  repaid (in the  absence of any
such  specification,  one such Note will be issued for the  portion  not being
repaid).

$ ____________________           _____________________________________________
                                 NOTICE: The signature on this Option to Elect 
Date                             Repayment must correspond  with the name  as 
                                 written  upon the face of  this Note in every
                                 particular, without alteration or enlargement
                                 or any change whatever.

<PAGE>


                           ASSIGNMENT/TRANSFER FORM


         FOR VALUE RECEIVED the undersigned  registered Holder hereby sell(s),
assign(s) and transfer(s) unto (insert Taxpayer Identification No.)___________
______________________________________________________________________________
(Please print or typewrite name and address including postal zip code of 
assignee)
______________________________________________________________________________
the within Note and all rights thereunder, hereby irrevocably constituting and
appointing
_______________________________________  attorney to transfer said Note on the
books of the Company with full power of substitution in the premises.


Date:________________                    _____________________________________
                                         NOTICE:    The   signature   of   the
                                         registered  Holder to this assignment
                                         must  correspond  with  the  name  as
                                         written  upon the face of the  within
                                         instrument   in   every   particular,
                                         without  alteration or enlargement or
                                         any change whatsoever.


<PAGE>


                                                                  Exhibit 23(b)


INDEPENDENT AUDITORS' CONSENT

We  consent to the  incorporation  by  reference  in this  Amendment  No. 2 to
Registration  Statement  No.  333-68747  of  Merrill  Lynch  & Co.,  Inc.  and
subsidiaries  ("Merrill  Lynch") on Form S-3 of our reports dated February 22,
1999  (which  express  an   unqualified   opinion  and  which  report  on  the
consolidated  financial  statements includes an explanatory  paragraph for the
change in  accounting  method for certain  internal-use  software  development
costs),  appearing or  incorporated  by reference in the Annual Report on Form
10-K of  Merrill  Lynch  for the year  ended  December  25,  1998,  and to the
reference to us under the heading "Experts" in the  Prospectuses,  which are a
part of this Registration Statement.



/s/ Deloitte & Touche LLP
New York, New York

March 26, 1999



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