MERRILL LYNCH ARIZONA MUNICIPAL BD FD OF MLMSMST
485BPOS, 1994-10-18
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<PAGE>
   
    AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON OCTOBER 18, 1994
    

                                                SECURITIES ACT FILE NO. 33-41311
                                        INVESTMENT COMPANY ACT FILE NO. 811-4375
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                              -------------------
                                   FORM N-1A

            REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933          /X/

                          PRE-EFFECTIVE AMENDMENT NO.                        / /

                         POST-EFFECTIVE AMENDMENT NO. 4                      /X/
                                     AND/OR

        REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940      /X/

                                AMENDMENT NO. 87                             /X/
                        (Check appropriate box or boxes)
                              -------------------
                   MERRILL LYNCH ARIZONA MUNICIPAL BOND FUND
              OF MERRILL LYNCH MULTI-STATE MUNICIPAL SERIES TRUST
               (EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER)

        800 SCUDDERS MILL ROAD
        PLAINSBORO, NEW JERSEY             08536
(Address of Principal Executive Office)  (Zip Code)

       Registrant's Telephone Number, including Area Code (609) 282-2800

                                 ARTHUR ZEIKEL
                MERRILL LYNCH MULTI-STATE MUNICIPAL SERIES TRUST
                 800 SCUDDERS MILL ROAD, PLAINSBORO, NEW JERSEY
        MAILING ADDRESS: P.O. BOX 9011, PRINCETON, NEW JERSEY 08543-9011
                              -------------------
                                   COPIES TO:

   
       Counsel for the Trust:
            BROWN & WOOD                Philip L. Kirstein, Esq.
       One World Trade Center             FUND ASSET MANAGEMENT
    New York, New York 10048-0557             P.O. Box 9011
Attention: Thomas R. Smith, Jr., Esq.     Princeton, New Jersey
      Brian M. Kaplowitz, Esq.                 08543-9011

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

 IT IS PROPOSED THAT THIS FILING WILL BECOME EFFECTIVE (CHECK APPROPRIATE BOX)

   
                    / / immediately upon filing pursuant to paragraph (b)
    
   
                    /X/ on October 21, 1994 pursuant to paragraph (b)
                    / / 60 days after filing pursuant to paragraph (a)
                    / / on (date) pursuant to paragraph (a)(i)
    
   
                    / / 75 days after filing pursuant to paragraph (a)(ii)
    
   
                    / / on (date) pursuant to paragraph (a)(ii) of rule 485.
    
   
            IF APPROPRIATE, CHECK THE FOLLOWING BOX:
    
   
                    / / this post-effective amendment designates a new effective
                        date for a previously filed post-effective amendment.
    
                              -------------------

   
    THE  REGISTRANT HAS REGISTERED AN INDEFINITE NUMBER OF ITS CLASS A AND CLASS
B SHARES OF  BENEFICIAL INTEREST UNDER  THE SECURITIES ACT  OF 1933 PURSUANT  TO
RULE 24F-2 UNDER THE INVESTMENT COMPANY ACT OF 1940. THE NOTICE REQUIRED BY SUCH
RULE  FOR THE REGISTRANT'S  MOST RECENT FISCAL  YEAR WAS FILED  ON SEPTEMBER 22,
1994.
    

- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
                  MERRILL LYNCH ARIZONA MUNICIPAL BOND FUND OF
                MERRILL LYNCH MULTI-STATE MUNICIPAL SERIES TRUST
                      REGISTRATION STATEMENT ON FORM N-1A
                             CROSS REFERENCE SHEET

   
<TABLE>
<CAPTION>
N-1A ITEM NO.                                                                                LOCATION
- ------------------------------------------------------------------------  ----------------------------------------------
<S>        <C>          <C>                                               <C>
PART A
           Item  1.     Cover Page......................................  Cover Page
           Item  2.     Synopsis........................................  Fee Table
           Item  3.     Condensed Financial Information.................  Financial Highlights; Performance Data
           Item  4.     General Description of Registrant...............  Investment Objective and Policies; Additional
                                                                            Information
           Item  5.     Management of the Fund..........................  Fee Table; Management of the Trust; Inside
                                                                            Back Cover Page
           Item 5A.     Management's Discussion of Fund Performance.....  Not Applicable
           Item  6.     Capital Stock and Other Securities..............  Cover Page; Additional Information
           Item  7.     Purchase of Securities Being Offered............  Cover Page; Fee Table; Merrill Lynch Select
                                                                            Pricing-SM- System; Purchase of Shares;
                                                                            Shareholder Services; Additional
                                                                            Information; Inside Back Cover Page
           Item  8.     Redemption or Repurchase........................  Fee Table; Merrill Lynch Select Pricing-SM-
                                                                            System; Purchase of Shares; Redemption of
                                                                            Shares; Shareholder Services
           Item  9.     Pending Legal Proceedings.......................  Not Applicable
PART B
           Item 10.     Cover Page......................................  Cover Page
           Item 11.     Table of Contents...............................  Back Cover Page
           Item 12.     General Information and History.................  Not Applicable
           Item 13.     Investment Objective and Policies...............  Investment Objective and Policies
           Item 14.     Management of the Fund..........................  Management of the Trust
           Item 15.     Control Persons and Principal Holders of
                          Securities....................................  Management of the Trust; Additional
                                                                            Information
           Item 16.     Investment Advisory and Other Services..........  Management of the Trust; Purchase of Shares;
                                                                            General Information
           Item 17.     Brokerage Allocation and Other Practices........  Portfolio Transactions
           Item 18.     Capital Stock and Other Securities..............  General Information--Description of Series and
                                                                            Shares
           Item 19.     Purchase, Redemption and Pricing of Securities
                          Being Offered.................................  Purchase of Shares; Redemption of Shares;
                                                                            Determination of Net Asset Value;
                                                                            Shareholder Services
           Item 20.     Tax Status......................................  Distributions and Taxes
           Item 21.     Underwriters....................................  Purchase of Shares
           Item 22.     Calculation of Performance Data.................  Performance Data
           Item 23.     Financial Statements............................  Statement of Assets & Liabilities; Financial
                                                                            Statements
</TABLE>
    

PART C

    Information  required  to be  included  in Part  C  is set  forth  under the
appropriate Item, so numbered, in Part C to this Registration Statement.
<PAGE>
PROSPECTUS
   
OCTOBER 21, 1994
    
   
                   MERRILL LYNCH ARIZONA MUNICIPAL BOND FUND
                MERRILL LYNCH MULTI-STATE MUNICIPAL SERIES TRUST
   P.O. BOX 9011, PRINCETON, NEW JERSEY 08543-9011--PHONE NO. (609) 282-2800
    
                              -------------------

    Merrill  Lynch Arizona  Municipal Bond  Fund (the  "Fund") is  a mutual fund
seeking to  provide shareholders  with as  high a  level of  income exempt  from
Federal  and  Arizona  income taxes  as  is consistent  with  prudent investment
management. The Fund invests primarily in a diversified portfolio of  long-term,
investment  grade obligations,  the interest  on which,  in the  opinion of bond
counsel to the issuer, is exempt from Federal and Arizona income taxes ("Arizona
Municipal Bonds").  Dividends paid  by  the Fund  are  exempt from  Federal  and
Arizona  income  taxes to  the extent  they  are paid  from interest  on Arizona
Municipal Bonds. The Fund may invest in certain tax-exempt securities classified
as "private activity bonds" that may subject certain investors in the Fund to an
alternative minimum tax.  At times,  the Fund may  seek to  hedge its  portfolio
through  the use of futures transactions and  options. There can be no assurance
that the investment objective of the Fund will be realized.
                              -------------------

   
    Pursuant to the  Merrill Lynch  Select Pricing-SM- System,  the Fund  offers
four  classes of  shares, each  with a  different combination  of sales charges,
ongoing fees and  other features.  The Merrill Lynch  Select Pricing-SM-  System
permits  an investor to choose the method of purchasing shares that the investor
believes is most beneficial given the amount of the purchase, the length of time
the investor expects to  hold the shares and  other relevant circumstances.  See
"Merrill Lynch Select Pricing-SM- System" on page 4.
    
   
    Shares  may be purchased directly from Merrill Lynch Funds Distributor, Inc.
(the "Distributor"),  P.O. Box  9011, Princeton,  New Jersey  08543-9011  [(609)
282-2800],  or from  other securities dealers  which have  entered into selected
dealer agreements with the Distributor, including Merrill Lynch, Pierce,  Fenner
&  Smith Incorporated ("Merrill Lynch"). The  minimum initial purchase is $1,000
and the  minimum  subsequent purchase  is  $50.  Merrill Lynch  may  charge  its
customers  a  processing  fee  (presently $4.85)  for  confirming  purchases and
repurchases. Purchases  and redemptions  directly  through the  Fund's  transfer
agent  are  not subject  to the  processing  fee. See  "Purchase of  Shares" and
"Redemption of Shares".
    
                              -------------------

THESE SECURITIES  HAVE  NOT  BEEN  APPROVED OR  DISAPPROVED  BY  THE  SECURITIES
  AND  EXCHANGE  COMMISSION OR  ANY STATE  SECURITIES  COMMISSION NOR  HAS THE
    SECURITIES AND EXCHANGE  COMMISSION OR ANY  STATE SECURITIES  COMMISSION
     PASSED   UPON   THE   ACCURACY  OR   ADEQUACY   OF   THIS  PROSPECTUS.
           ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
                              -------------------

   
    This Prospectus is a concise statement of information about the Fund that is
relevant to making an investment in the Fund. This Prospectus should be retained
for future reference.  A statement containing  additional information about  the
Fund,  dated October 21,  1994 (the "Statement  of Additional Information"), has
been filed with the Securities and Exchange Commission and is available, without
charge, by  calling or  by writing  Merrill Lynch  Multi-State Municipal  Series
Trust  (the "Trust") at the above telephone  number or address. The Statement of
Additional Information is hereby incorporated by reference into this Prospectus.
The Fund is a  separate series of the  Trust, an open-end management  investment
company organized as a Massachusetts business trust.
    
                              -------------------
   
                         FUND ASSET MANAGEMENT--MANAGER
               MERRILL LYNCH FUNDS DISTRIBUTOR, INC.--DISTRIBUTOR
    
<PAGE>
                                   FEE TABLE

   
    A  general comparison of  the sales arrangements  and other nonrecurring and
recurring expenses applicable to shares of the Fund follows:
    

   
<TABLE>
<CAPTION>
                                                   CLASS A(A)               CLASS B(B)              CLASS C(C)      CLASS D(C)
                                                 ---------------  ------------------------------  --------------  ---------------
<S>                                              <C>              <C>                             <C>             <C>
SHAREHOLDER TRANSACTION EXPENSES:
  Maximum Sales Charge Imposed on Purchases
    (as a percentage of offering price)........         4.00%(d)               None                    None              4.00%(d)
  Sales Charge Imposed on Dividend
    Reinvestments..............................       None                     None                    None            None
  Deferred Sales Charge (as a percentage of
    original purchase price or redemption
    proceeds, whichever is lower)..............      None(e)       4.0% during the first year,      1% for one        None(e)
                                                                     decreasing 1.0% annually          year
                                                                   thereafter to 0.0% after the
                                                                           fourth year
  Exchange Fee.................................       None                     None                    None            None
ANNUAL FUND OPERATING EXPENSES (AS A PERCENTAGE
  OF AVERAGE NET ASSETS(F).....................
  Investment Advisory Fees(g)..................         0.55%                    0.55%                   0.55%           0.55%
  12b-1 Fees(h):
    Account Maintenance Fees...................       None                       0.25%                   0.25%           0.10%
    Distribution Fees..........................       None                       0.25%                   0.35%         None
                                                                    (CLASS B SHARES CONVERT TO
                                                                   CLASS D SHARES AUTOMATICALLY
                                                                  AFTER APPROXIMATELY TEN YEARS,
                                                                      CEASE BEING SUBJECT TO
                                                                   DISTRIBUTION FEES AND BECOME
                                                                     SUBJECT TO LOWER ACCOUNT
                                                                        MAINTENANCE FEES)
Other Expenses:
  Custodial Fees...............................         0.02%                    0.02%                   0.02%           0.02%
  Shareholder Servicing Costs(i)...............          .04%                     .04%                    .04%            .04%
  Other........................................          .19%                     .19%                    .19%            .19%
                                                      -----                       ---                     ---          -----
      Total Other Expenses.....................          .25%                     .25%                    .25%            .25%
                                                      -----                       ---                     ---          -----
Total Fund Operating Expenses..................          .80%                    1.30%                   1.40%            .90%
                                                      -----                       ---                     ---          -----
                                                      -----                       ---                     ---          -----
<FN>
- ------------
(a)  Class A shares are sold to a limited group of investors including  existing
     Class  A shareholders and  investment programs. See  "Purchase of Shares --
     Initial Sales Charge Alternatives  -- Class A and  Class D Shares" --  page
     22.
(b)  Class  B shares convert  to Class D  shares automatically approximately ten
     years after initial  purchase. See  "Purchase of Shares  -- Deferred  Sales
     Charge Alternatives -- Class B and Class C Shares" -- page 24.
(c)  Prior  to the date of this Prospectus, the  Fund has not offered in Class C
     and Class D shares to the public.
(d)  Reduced for purchases of $25,000 and over. Class A or Class D purchases  of
     $1,000,000  or more  may not  be subject  to an  initial sales  charge. See
     "Purchase of Shares  -- Initial Sales  Charge Alternatives --  Class A  and
     Class D Shares" -- page 22.
(e)  Class  A and Class D shares are  not subject to a contingent deferred sales
     charge ("CDSC"), except that purchases of $1,000,000 of more which may  not
     be  subject to an initial sales charge may  instead be subject to a CDSC of
     1.0% of amounts redeemed within the first year of purchase.
(f)  Information for Class A and  Class B shares is  stated for the fiscal  year
     ended  July 31,  1994. Information under  "Other Expenses" for  Class C and
     Class D shares is estimated for the fiscal year ending July 31, 1995.
(g)  See "Management of the  Trust -- Management  and Advisory Arrangements"  --
     page 19.
(h)  See "Purchase of Shares -- Distribution Plans" -- page 27.
(i)  See "Management of the Trust -- Transfer Agency Services" -- page 20.
</TABLE>
    

                                       2
<PAGE>
   
EXAMPLE:
    

   
<TABLE>
<CAPTION>
                                                                CUMULATIVE EXPENSES PAID
                                                                   FOR THE PERIOD OF:
                                                              ----------------------------
                                                                1      3      5      10
                                                              YEAR   YEARS  YEARS   YEARS
                                                              -----  -----  -----  -------
<S>                                                           <C>    <C>    <C>    <C>
An investor would pay the following expenses on a $1,000
  investment including the maximum $40 initial sales charge
  (Class A and Class D shares only) and assuming (1) the
  Total Fund Operating Expenses for each class set forth
  above; (2) a 5% annual return throughout the periods and
  (3) redemption at the end of the period:
    Class A.................................................  $ 48   $ 65   $ 83   $  135
    Class B.................................................  $ 53   $ 61   $ 71   $  157
    Class C.................................................  $ 24   $ 44   $ 77   $  168
    Class D.................................................  $ 49   $ 68   $ 88   $  146
An investor would pay the following expenses on the same
  $1,000 investment assuming no redemption at the end of the
  period:
    Class A.................................................  $ 48   $ 65   $ 83   $  135
    Class B.................................................  $ 13   $ 41   $ 71   $  157
    Class C.................................................  $ 14   $ 44   $ 77   $  168
    Class D.................................................  $ 49   $ 68   $ 88   $  146
</TABLE>
    

   
    As  of July 31,  1994, the Manager  has voluntarily waived  a portion of its
management fee. The fee  table has been  restated to assume  the absence of  any
waiver  because the Manager  may discontinue or  reduce such waiver  at any time
without notice. During the fiscal year  ended July 31, 1994, the Manager  waived
management  fees totaling 0.24% for Class A  shares and 0.23% for Class B shares
after which the  Fund's total expense  ratio was  0.56% for Class  A shares  and
1.07%  for Class B  shares. Information is  not provided with  respect to either
Class C or  Class D  shares since no  Class C  or Class D  shares were  publicly
offered during that year.
    

   
    The foregoing Fee Table is intended to assist investors in understanding the
costs  and  expenses  that a  shareholder  in  the Fund  will  bear  directly or
indirectly. The Example set  forth above assumes  reinvestment of all  dividends
and  distributions  and utilizes  a  5% annual  rate  of return  as  mandated by
Securities and  Exchange  Commission  ("Commission")  regulations.  THE  EXAMPLE
SHOULD  NOT BE CONSIDERED A REPRESENTATION OF  PAST OR FUTURE EXPENSES OR ANNUAL
RATE OF RETURN, AND ACTUAL EXPENSES OR ANNUAL RATE OF RETURN MAY BE MORE OR LESS
THAN THOSE ASSUMED FOR PURPOSES OF THE EXAMPLE. Class B and Class C shareholders
who hold their shares for an extended period of time may pay more in Rule  12b-1
distribution  fees than the  economic equivalent of  the maximum front-end sales
charge permitted under the Rules of Fair Practice of the National Association of
Securities Dealers,  Inc. ("NASD").  Merrill Lynch  may charge  its customers  a
processing  fee  (presently  $4.85) for  confirming  purchases  and repurchases.
Purchases and redemptions  directly through  the Fund's Transfer  Agent are  not
subject  to  the processing  fee. See  "Purchase of  Shares" and  "Redemption of
Shares".
    

                                       3
<PAGE>
   
                    MERRILL LYNCH SELECT PRICING-SM- SYSTEM
    

   
    The Fund  offers four  classes  of shares  under  the Merrill  Lynch  Select
Pricing-SM-  System. The shares of each class  may be purchased at a price equal
to the next determined net  asset value per share  subject to the sales  charges
and  ongoing fee arrangements described below. Shares of Class A and Class D are
sold to investors choosing the initial sales charge alternatives, and shares  of
Class  B and Class  C are sold  to investors choosing  the deferred sales charge
alternatives. The Merrill Lynch  Select Pricing System is  used by more than  50
mutual  funds advised  by Merrill  Lynch Asset  Management, L.P.  ("MLAM") or an
affiliate of MLAM, Fund Asset Management,  L.P. ("FAM" or the "Manager").  Funds
advised by MLAM or FAM are referred to herein as "MLAM-advised mutual funds".
    

   
    Each  Class A, Class B, Class  C or Class D share  of the Fund represents an
identical interest in  the investment  portfolio of the  Fund and  has the  same
rights, except that Class B, Class C and Class D shares bear the expenses of the
ongoing  account  maintenance fees  and  Class B  and  Class C  shares  bear the
expenses of  the  ongoing  distribution  fees  and  the  additional  incremental
transfer agency costs resulting from the deferred sales charge arrangements. The
deferred  sales charges and account maintenance fees that are imposed on Class B
and Class C shares, as well as the account maintenance fees that are imposed  on
the  Class D  shares, will  be imposed  directly against  those classes  and not
against all assets of  the Fund and, accordingly,  such charges will not  affect
the  net asset value of any other class or have any impact on investors choosing
another sales charge option. Dividends paid by the Fund for each class of shares
will be calculated in the same manner at  the same time and will differ only  to
the  extent that account  maintenance and distribution  fees and any incremental
transfer agency costs relating  to a particular class  are borne exclusively  by
that  class.  Each class  has  different exchange  privileges.  See "Shareholder
Services -- Exchange Privilege".
    

   
    Investors should understand  that the  purpose and function  of the  initial
sales  charges with respect  to the Class A  and Class D shares  are the same as
those of the  deferred sales charges  with respect to  the Class B  and Class  C
shares  in  that the  sales charges  applicable  to each  class provide  for the
financing   of   the   distribution   of   the   shares   of   the   Fund.   The
distribution-related  revenues paid with respect to a  class will not be used to
finance the  distribution expenditures  of another  class. Sales  personnel  may
receive different compensation for selling different classes of shares.
    

   
    The  following table sets  forth a summary  of the distribution arrangements
for each class  of shares  under the  Merrill Lynch  Select Pricing-SM-  System,
followed  by a more detailed  description of each class  and a discussion of the
factors that investors should consider  in determining the method of  purchasing
shares  under the Merrill Lynch Select Pricing System that the investor believes
is most beneficial under his particular circumstances. More detailed information
as to each class of shares is set forth under "Purchase of Shares".
    

                                       4
<PAGE>

   
<TABLE>
<CAPTION>

                                                  ACCOUNT
                                                MAINTENANCE   DISTRIBUTION
CLASS             SALES CHARGE(1)                   FEE           FEE                 CONVERSION FEATURE
<C>   <S>                                       <C>           <C>          <C>
  A   Maximum 4.00% initial sales                   No             No                         No
        charge(2),(3)
  B   CDSC for a period of 4 years, at a rate      0.25%         0.25%     B shares convert to D shares
        of 4.0% during the first year,                                       automatically after
        decreasing 1.0% annually to 0.0%                                     approximately ten years(4)
  C   1.0% CDSC for one year                       0.25%         0.35%                        No
  D   Maximum 4.00% initial sales charge(3)        0.10%           No                         No
<FN>
(1)  Initial sales charges are imposed at  the time of purchase as a  percentage
     of  the  offering price.  Contingent deferred  sales charges  ("CDSCs") are
     imposed if the redemption  occurs within the  applicable CDSC time  period.
     The  charge  will be  assessed  on an  amount equal  to  the lesser  of the
     proceeds of redemption or the cost of the shares being redeemed.
(2)  Offered only  to eligible  investors. See  "Purchase of  Shares --  Initial
     Sales Charge Alternatives -- Class A and Class D Shares -- Eligible Class A
     Investors".
(3)  Reduced  for  purchases of  $25,000  or more.  Class  A and  Class  D share
     purchases of $1,000,000  or more  may not be  subject to  an initial  sales
     charge  but instead may be  subject to a CDSC  if redeemed within one year.
     See "Class A" and "Class D" below.
(4)  The conversion period for dividend  reinvestment shares is modified.  Also,
     Class  B  shares  of certain  other  MLAM-advised mutual  funds  into which
     exchanges may be  made have  an eight year  conversion period.  If Class  B
     shares of the Fund are exchanged for Class B shares of another MLAM-advised
     mutual  fund,  the  conversion  period applicable  to  the  Class  B shares
     acquired in the exchange will apply, and the holding period for the  shares
     exchanged will be tacked onto the holding period for the shares acquired.
</TABLE>
    

   
<TABLE>
<S>        <C>
CLASS A:   Class  A shares incur an initial sales charge  when they are purchased and bear no
           ongoing distribution or account maintenance fees. Class A shares are offered to  a
           limited  group of investors and also will be issued upon reinvestment of dividends
           on outstanding Class A shares.  Investors that currently own  Class A shares in  a
           shareholder  account are  entitled to purchase  additional Class A  shares in that
           account. In addition, Class A shares will be offered to directors and employees of
           Merrill Lynch & Co., Inc. and its subsidiaries (the term "subsidiaries" when  used
           herein  with respect to Merrill Lynch &  Co., Inc., includes MLAM, the Manager and
           certain other  entities  directly or  indirectly  wholly-owned and  controlled  by
           Merrill  Lynch & Co.,  Inc.) and to  members of the  Boards of MLAM-advised mutual
           funds. The maximum initial sales charge  is 4.00%, which is reduced for  purchases
           of  $25,000 and  over. Purchases of  $1,000,000 or more  may not be  subject to an
           initial sales charge but if the initial sales charge is waived, such purchases may
           be subject to a CDSC  if the shares are redeemed  within one year after  purchase.
           Sales  charges also  are reduced  under a right  of accumulation  which takes into
           account the investor's holdings of all  classes of all MLAM-advised mutual  funds.
           See  "Purchase of Shares -- Initial Sales Charge Alternatives -- Class A and Class
           D Shares".
CLASS B:   Class B shares do not incur a sales  charge when they are purchased, but they  are
           subject  to an ongoing  account maintenance fee of  0.25%, an ongoing distribution
           fee of 0.25% of the Fund's
</TABLE>
    

                                       5
<PAGE>
   
<TABLE>
<S>        <C>
           average net assets  attributable to the  Class B shares,  and a CDSC  if they  are
           redeemed  within four years  of purchase. Approximately  ten years after issuance,
           Class B shares will convert automatically into  Class D shares of the Fund,  which
           are  subject to a lower account maintenance  fee of 0.10% and no distribution fee;
           Class B shares of certain other MLAM-advised mutual funds into which exchanges may
           be made convert into Class D shares automatically after approximately eight years.
           If Class  B shares  of  the Fund  are  exchanged for  Class  B shares  of  another
           MLAM-advised  mutual fund, the conversion period  applicable to the Class B shares
           acquired in the exchange will apply, as  will the Class D account maintenance  fee
           of  the acquired fund upon  the conversion, and the  holding period for the shares
           exchanged will  be  tacked  onto  the holding  period  for  the  shares  acquired.
           Automatic  conversion of Class  B shares into  Class D shares  will occur at least
           once a month on the basis  of the relative net asset  values of the shares of  the
           two  classes on the conversion date, without the imposition of any sales load, fee
           or other charge. Conversion of Class B shares to Class D shares will not be deemed
           a purchase or sale of the shares for Federal income tax purposes. Shares purchased
           through  reinvestment  of  dividends   on  Class  B   shares  also  will   convert
           automatically  to Class D shares. The  conversion period for dividend reinvestment
           shares is modified as described under "Purchase of Shares -- Deferred Sales Charge
           Alternatives -- Class  B and Class  C Shares --  Conversion of Class  B Shares  to
           Class D Shares".
CLASS C:   Class  C shares do not incur a sales  charge when they are purchased, but they are
           subject to an ongoing account maintenance fee of 0.25% and an ongoing distribution
           fee of 0.35%  of the Fund's  net assets attributable  to Class C  shares. Class  C
           shares  are  also subject  to  a CDSC  if  they are  redeemed  within one  year of
           purchase. Although Class C shares are subject to a 1.0% CDSC for only one year (as
           compared to four years  for Class B),  Class C shares  have no conversion  feature
           and,  accordingly, an investor  that purchases Class  C shares will  be subject to
           distribution fees that will be imposed on Class C shares for an indefinite  period
           subject  to  annual  approval  by  the Fund's  Board  of  Trustees  and regulatory
           limitations.
CLASS D:   Class D shares  incur an  initial sales  charge when  they are  purchased and  are
           subject  to an ongoing account maintenance fee  of 0.10% of the Fund's average net
           assets attributable  to Class  D shares.  Class D  shares are  not subject  to  an
           ongoing  distribution  fee  or  any  CDSC when  they  are  redeemed.  Purchases of
           $1,000,000 or  more may  not be  subject to  an initial  sales charge  but if  the
           initial  sales charge is waived such purchase will be subject to a CDSC of 1.0% if
           the shares are redeemed  within one year after  purchase. The schedule of  initial
           sales  charges and reductions for  the Class D shares is  the same as the schedule
           for Class A shares. Class D shares also will be issued upon conversion of Class  B
           shares  as described  above under  "Class B". See  "Purchase of  Shares -- Initial
           Sales Charge Alternatives -- Class A and Class D Shares".
</TABLE>
    

   
    The following is a discussion of the factors that investors should  consider
in  determining the method  of purchasing shares under  the Merrill Lynch Select
Pricing-SM- System  that the  investor  believes is  most beneficial  under  his
particular circumstances.
    

   
    INITIAL  SALES CHARGE  ALTERNATIVES.__Investors who prefer  an initial sales
charge alternative  may elect  to purchase  Class D  shares or,  if an  eligible
investor,   Class  A  shares.  Investors   choosing  the  initial  sales  charge
alternative who are eligible to purchase Class A shares should purchase Class  A
shares rather than Class D
    

                                       6
<PAGE>
   
shares  because  of  the account  maintenance  fee  imposed on  Class  D shares.
Investors qualifying for  significantly reduced initial  sales charges may  find
the  initial sales  charge alternative  particularly attractive  because similar
sales charge reductions  are not available  with respect to  the deferred  sales
charges  imposed in  connection with  purchases of  Class B  or Class  C shares.
Investors not  qualifying  for  reduced  initial sales  charges  who  expect  to
maintain  their investment  for an  extended period  of time  also may  elect to
purchase Class A or  Class D shares, because  over time the accumulated  ongoing
account  maintenance and  distribution fees  on Class  B or  Class C  shares may
exceed the initial sales charge and, in the case of Class D shares, the  account
maintenance  fee.  Although some  investors  that previously  purchased  Class A
shares  may  no  longer  be  eligible  to  purchase  Class  A  shares  of  other
MLAM-advised  mutual funds, those previously  purchased Class A shares, together
with Class B, Class C and Class D  share holdings, will count toward a right  of
accumulation which may qualify the investor for reduced initial sales charges on
new initial sales charge purchases. In addition, the ongoing Class B and Class C
account  maintenance and distribution fees will cause Class B and Class C shares
to have higher expense ratios, pay lower dividends and have lower total  returns
than  the initial sales  charge shares. The ongoing  Class D account maintenance
fees will  cause Class  D  shares to  have a  higher  expense ratio,  pay  lower
dividends and have a lower total return than Class A shares.
    

   
    DEFERRED  SALES CHARGE  ALTERNATIVES.__Because no initial  sales charges are
deducted at the time of purchase, Class B and Class C shares provide the benefit
of putting all of the investor's dollars to work from the time the investment is
made. The deferred sales  charge alternatives may  be particularly appealing  to
investors  who do  not qualify  for a reduction  in initial  sales charges. Both
Class B and Class C shares are  subject to ongoing account maintenance fees  and
distribution  fees; however,  the ongoing  account maintenance  and distribution
fees potentially may  be offset  to the  extent any  return is  realized on  the
additional  funds initially invested in Class B  or Class C shares. In addition,
Class B  shares will  be converted  into  Class D  shares of  the Fund  after  a
conversion  period of approximately ten years,  and thereafter investors will be
subject to lower ongoing fees.
    

   
    Certain investors may elect to purchase Class B shares if they determine  it
to be most advantageous to have all their funds invested initially and intend to
hold  their shares for an  extended period of time.  Investors in Class B shares
should take into account whether they  intend to redeem their shares within  the
CDSC period and, if not, whether they intend to remain invested until the end of
the  conversion period  and thereby take  advantage of the  reduction in ongoing
fees resulting  from  the  conversion  into Class  D  shares.  Other  investors,
however,  may elect  to purchase  Class C  shares if  they determine  that it is
advantageous to have all their assets invested initially and they are  uncertain
as to the length of time they intend to hold their assets in MLAM-advised mutual
funds.  Although Class C shareholders are subject  to a shorter CDSC period at a
lower rate, they are subject to higher  distribution fees and forgo the Class  B
conversion  feature, making their investment  subject to account maintenance and
distribution fees for  an indefinite  period of  time. In  addition, while  both
Class  B  and  Class C  distribution  fees  are subject  to  the  limitations on
asset-based sales charges imposed by the NASD, the Class B distribution fees are
further limited  under a  voluntary  waiver of  asset-based sales  charges.  See
"Purchase of Shares -- Limitations on the Payment of Deferred Sales Charges".
    

                                       7
<PAGE>
                              FINANCIAL HIGHLIGHTS

   
    The financial information in the table below has been audited in conjunction
with  the annual audits  of the financial  statements of the  Fund by Deloitte &
Touche LLP, independent auditors. Financial  statements for the year ended  July
31,  1994  and the  independent  auditors' report  thereon  are included  in the
Statement of Additional  Information. The  following per share  data and  ratios
have  been derived  from information  provided in  the Fund's  audited financial
statements. Financial information is not presented for Class C or Class D shares
since no shares  of these classes  are publicly issued  as of the  date of  this
Prospectus.  Further information about the performance  of the Fund is contained
in the Fund's most recent annual  report to shareholders which may be  obtained,
without charge, by calling or by writing the Fund at the telephone number on the
front cover of this Prospectus.
    

   
<TABLE>
<CAPTION>
                                                               CLASS A                           CLASS B
                                                    ------------------------------   -------------------------------
                                                                          FOR THE                           FOR THE
                                                                          PERIOD                            PERIOD
                                                    FOR THE YEAR ENDED   NOVEMBER    FOR THE YEAR ENDED    NOVEMBER
                                                         JULY 31,        29, 1991+        JULY 31,         29, 1991+
                                                    ------------------    TO JULY    -------------------    TO JULY
                                                     1994       1993     31, 1992      1994       1993     31, 1992
                                                    -------   --------   ---------   --------   --------   ---------
<S>                                                 <C>       <C>        <C>         <C>        <C>        <C>
INCREASE (DECREASE) IN NET ASSET VALUE:
PER SHARE OPERATING PERFORMANCE:
Net asset value, beginning of period..............  $11.01    $ 10.74    $ 10.00     $ 11.01    $ 10.74    $ 10.00
                                                    -------   --------   ---------   --------   --------   ---------
Investment income -- net..........................     .57        .60        .41         .52        .54        .38
Realized and unrealized gain (loss) on investments
  -- net..........................................    (.39)       .39        .74        (.39)       .39        .74
                                                    -------   --------   ---------   --------   --------   ---------
Total from investment operations..................     .18        .99       1.15         .13        .93       1.12
                                                    -------   --------   ---------   --------   --------   ---------
Less dividends and distributions:
Investment income -- net..........................    (.57)      (.60)      (.41)       (.52)      (.54)      (.38)
Realized gain on investments -- net...............    (.22)      (.12)     --           (.22)      (.12)     --
                                                    -------   --------   ---------   --------   --------   ---------
Total dividends and distributions.................    (.79)      (.72)      (.41)       (.74)      (.66)      (.38)
                                                    -------   --------   ---------   --------   --------   ---------
Net asset value, end of period....................  $10.40    $ 11.01    $ 10.74     $ 10.40    $ 11.01    $ 10.74
                                                    -------   --------   ---------   --------   --------   ---------
                                                    -------   --------   ---------   --------   --------   ---------
TOTAL INVESTMENT RETURNS:**
Based on net asset value per share................    1.62%      9.63%     11.82%++     1.11%      9.08%     11.45%++
                                                    -------   --------   ---------   --------   --------   ---------
                                                    -------   --------   ---------   --------   --------   ---------
RATIOS TO AVERAGE NET ASSETS:
Expenses, excluding distribution fees and net of
  reimbursement...................................     .56%       .41%       .22%*       .57%       .42%       .24%*
                                                    -------   --------   ---------   --------   --------   ---------
                                                    -------   --------   ---------   --------   --------   ---------
Expenses, net of reimbursement....................     .56%       .41%       .22%*      1.07%       .92%       .74%*
                                                    -------   --------   ---------   --------   --------   ---------
                                                    -------   --------   ---------   --------   --------   ---------
Expenses..........................................     .80%       .81%       .98%*      1.30%      1.32%      1.47%*
                                                    -------   --------   ---------   --------   --------   ---------
                                                    -------   --------   ---------   --------   --------   ---------
Investment income -- net..........................    5.32%      5.57%      5.99%*      4.82%      5.06%      5.48%*
                                                    -------   --------   ---------   --------   --------   ---------
                                                    -------   --------   ---------   --------   --------   ---------
SUPPLEMENTAL DATA:
Net assets, end of period (in thousands)..........  $18,363   $17,988    $14,564     $80,616    $81,078    $59,881
                                                    -------   --------   ---------   --------   --------   ---------
                                                    -------   --------   ---------   --------   --------   ---------
Portfolio Turnover................................   53.35%     73.48%     66.50%      53.35%     73.48%     66.50%
                                                    -------   --------   ---------   --------   --------   ---------
                                                    -------   --------   ---------   --------   --------   ---------
<FN>
- ------------
 + Commencement of Operations.
++ Aggregate total investment return.
 * Annualized.
** Total investment returns exclude the effects of sales loads.
</TABLE>
    

                                       8
<PAGE>
                       INVESTMENT OBJECTIVE AND POLICIES

   
    The investment objective of the Fund is to provide shareholders with as high
a  level of income exempt from Federal and Arizona income taxes as is consistent
with prudent  investment management.  The Fund  seeks to  achieve its  objective
while  providing  investors  with the  opportunity  to invest  in  a diversified
portfolio of securities consisting primarily of long-term obligations issued  by
or  on behalf of the State of  Arizona, its political subdivisions, agencies and
instrumentalities and obligations of other  qualifying issuers, such as  issuers
located  in Puerto Rico, the Virgin Islands and Guam, which pay interest exempt,
in the opinion of bond  counsel to the issuer,  from Federal and Arizona  income
taxes.  Obligations exempt from  Federal income taxes are  referred to herein as
"Municipal Bonds" and obligations  exempt from both  Federal and Arizona  income
taxes  are referred to as "Arizona Municipal Bonds". Unless otherwise indicated,
references to  Municipal Bonds  shall  be deemed  to include  Arizona  Municipal
Bonds.  The Fund at  all times, except during  temporary defensive periods, will
maintain at least 65% of its  total assets invested in Arizona Municipal  Bonds.
The  investment objective of the Fund as set forth in the first sentence of this
paragraph is a  fundamental policy and  may not be  changed without  shareholder
approval.  At times, the Fund may seek to hedge its portfolio through the use of
futures transactions to reduce volatility in the net asset value of Fund shares.
    

   
    Municipal Bonds may include  several types of bonds.  The risks and  special
considerations involved in investments in Municipal Bonds vary with the types of
instruments  being acquired. Investments in Non-Municipal Tax-Exempt Securities,
as defined  herein,  may present  similar  risks, depending  on  the  particular
product.  Certain instruments in which the  Fund may invest may be characterized
as derivative instruments. See "Description  of Municipal Bonds" and  "Financial
Futures  Transactions and Options".  The interest on Municipal  Bonds may bear a
fixed rate or be  payable at a variable  or floating rate. At  least 80% of  the
Municipal  Bonds  purchased by  the  Fund primarily  will  be what  are commonly
referred to as "investment grade" securities, which are obligations rated at the
time of purchase within the four highest quality ratings as determined by either
Moody's Investors  Service, Inc.  ("Moody's") (currently  Aaa, Aa,  A and  Baa),
Standard  & Poor's Corporation  ("Standard & Poor's") (currently  AAA, AA, A and
BBB) or Fitch Investors Service, Inc. ("Fitch") (currently, AAA, AA, A and BBB).
If Municipal Bonds  are unrated, such  securities will possess  creditworthiness
comparable,  in the opinion of  the manager of the  Fund, Fund Asset Management,
L.P. (the "Manager"),  to obligations in  which the Fund  may invest.  Municipal
Bonds  rated in the fourth highest rating category, while considered "investment
grade", have  certain speculative  characteristics  and are  more likely  to  be
downgraded  to non-investment  grade than  obligations rated  in one  of the top
three rating categories. See Appendix II -- "Ratings of Municipal Bonds" in  the
Statement  of Additional Information  for more information  regarding ratings of
debt securities. An issue of rated Municipal Bonds may cease to be rated or  its
rating may be reduced below "investment grade" subsequent to its purchase by the
Fund.  If an obligation  is downgraded below investment  grade, the Manager will
consider factors  such  as  price, credit  risk,  market  conditions,  financial
condition  of the issuer and interest rates  to determine whether to continue to
hold the obligation in the Fund's portfolio.
    

   
    The Fund may invest up  to 20% of its total  assets in Municipal Bonds  that
are  rated below Baa by Moody's  or below BBB by Standard  & Poor's or Fitch, or
which in the  Manager's judgment, possess  similar credit characteristics.  Such
securities,   sometimes  referred  to  as  "high-yield"  or  "junk"  bonds,  are
predominantly speculative with respect to the capacity to pay interest and repay
principal in accordance with the terms  of the security and generally involve  a
greater    volatility   of    price   than    securities   in    higher   rating
    

                                       9
<PAGE>
categories. The  market  prices  of high-yielding,  lower-rated  securities  may
fluctuate  more than  higher-rated securities  and may  decline significantly in
periods of  general economic  difficulty,  which may  follow periods  of  rising
interest  rates.  In  purchasing such  securities,  the  Fund will  rely  on the
Manager's judgment, analysis and  experience in evaluating the  creditworthiness
of  the issuer  of such  securities. The  Manager will  take into consideration,
among other  things,  the  issuer's  financial  resources,  its  sensitivity  to
economic  conditions  and  trends, its  operating  history, the  quality  of its
management and regulatory  matters. See "Investment  Objective and Policies"  in
the  Statement of Additional  Information for a more  detailed discussion of the
pertinent risk factors involved in investing in "high yield" or "junk" bonds and
Appendix II  -- "Ratings  of Municipal  Bonds" in  the Statement  of  Additional
Information for additional information regarding ratings of debt securities. The
Fund  does not intend to  purchase debt securities that  are in default or which
the Manager believes will be in default.

   
    Certain Municipal Bonds may be entitled to the benefits of letters of credit
or similar  credit  enhancements  issued  by  financial  institutions.  In  such
instances,  the Trustees and the Manager will take into account in assessing the
quality of such bonds not only the creditworthiness of the issuer of such  bonds
but also the creditworthiness of the financial institutions.
    

    The  Fund's investments  may also  include variable  rate demand obligations
("VRDOs") and  VRDOs  in the  form  of participation  interests  ("Participating
VRDOs") in variable rate tax-exempt obligations held by a financial institution.
The VRDOs in which the Fund will invest are tax-exempt obligations which contain
a  floating or  variable interest rate  adjustment formula  and an unconditional
right of demand  on the part  of the holder  thereof to receive  payment of  the
unpaid  principal balance plus accrued interest on  a short notice period not to
exceed seven  days.  Participating  VRDOs  provide the  Fund  with  a  specified
undivided  interest (up to 100%)  of the underlying obligation  and the right to
demand payment of  the unpaid  principal balance  plus accrued  interest on  the
Participating  VRDOs from  the financial  institution on  a specified  number of
days' notice, not to exceed seven days. There is, however, the possibility  that
because  of default or insolvency, the  demand feature of VRDOs or Participating
VRDOs may not be honored. The Fund has been advised by its counsel that the Fund
should be  entitled to  treat  the income  received  on Participating  VRDOs  as
interest from tax-exempt obligations.

    VRDOs  that contain an  unconditional right of demand  to receive payment of
the unpaid principal balance plus accrued interest on a notice period  exceeding
seven days may be deemed illiquid securities. A VRDO with a demand notice period
exceeding  seven days  will therefore  be subject  to the  Fund's restriction on
illiquid investments  unless, in  the judgment  of the  Trustees, such  VRDO  is
liquid.  The Trustees may adopt guidelines and delegate to the Manager the daily
function of determining and  monitoring liquidity of  such VRDOs. The  Trustees,
however, will retain sufficient oversight and be ultimately responsible for such
determinations.

    The  Fund ordinarily does not intend to realize investment income not exempt
from Federal and  Arizona income  taxes. However,  to the  extent that  suitable
Arizona  Municipal Bonds are not available for  investment by the Fund, the Fund
may purchase  Municipal  Bonds  issued  by  other  states,  their  agencies  and
instrumentalities,  the interest  income on which  is exempt, in  the opinion of
bond counsel, from Federal, but not Arizona, taxation. The Fund also may  invest
in securities not issued by or on behalf of a state or territory or by an agency
or instrumentality thereof, if the Fund nevertheless believes such securities to
be  exempt from Federal income taxation ("Non-Municipal Tax-Exempt Securities").
Non-Municipal Tax-Exempt  Securities  may  include securities  issued  by  other
investment    companies    that   invest    in    municipal   bonds,    to   the

                                       10
<PAGE>
extent such investments are permitted by the Investment Company Act of 1940,  as
amended  (the  "1940  Act").  Other  Tax-Exempt  Non-Municipal  Securities could
include trust certificates or other  instruments evidencing interests in one  or
more long-term municipal securities.

    Under   normal   circumstances,  except   when  acceptable   securities  are
unavailable as determined by the Manager, the  Fund will invest at least 65%  of
its  total assets in Arizona Municipal Bonds. For temporary defensive periods or
to provide liquidity, the Fund has the authority to invest as much as 35% of its
total assets in tax-exempt or taxable  money market obligations with a  maturity
of  one year or  less (such short-term  obligations being referred  to herein as
"Temporary Investments"), except  that taxable Temporary  Investments shall  not
exceed  20%  of the  Fund's  net assets.  The  Temporary Investments,  VRDOs and
Participating VRDOs in which the Fund may  invest also will be in the  following
rating categories at the time of purchase: MIG-1/VMIG-1 through MIG-4/VMIG-4 for
notes  and VRDOs and Prime-1 through Prime-3 for commercial paper (as determined
by Moody's), SP-1 or SP-2 for notes and A-1 through A-3 for VRDOs and commercial
paper (as determined  by Standard  and Poor's), or  F-1 through  F-3 for  notes,
VRDOs  and  commercial  paper  (as  determined  by  Fitch)  or,  if  unrated, of
comparable quality in the  opinion of the  Manager. The Fund  at all times  will
have at least 80% of its net assets invested in securities the interest on which
is exempt from Federal taxation. However, interest received on certain otherwise
tax-exempt  securities  which are  classified  as "private  activity  bonds" (in
general, bonds that benefit non-governmental entities) may be subject to Federal
alternative minimum tax.  The percentage of  the Fund's net  assets invested  in
"private  activity  bonds" will  vary during  the  year. See  "Distributions and
Taxes". In addition, the Fund reserves the right to invest temporarily a greater
portion of its assets in Temporary Investments for defensive purposes, when,  in
the judgment of the Manager, market conditions warrant. The investment objective
of the Fund is a fundamental policy of the Fund which may be not changed without
a  vote of a majority of the outstanding  shares of the Fund. The Fund's hedging
strategies,  which  are  described  in  more  detail  under  "Financial  Futures
Transactions  and Options", are not fundamental  policies and may be modified by
the Trustees of the Trust without the approval of the Fund's shareholders.

POTENTIAL BENEFITS

   
    Investment in shares of  the Fund offers several  benefits. The Fund  offers
investors  the opportunity  to receive  income exempt  from Federal  and Arizona
income taxes  by  investing in  a  professionally managed  portfolio  consisting
primarily of long-term Arizona Municipal Bonds. The Fund also provides liquidity
because  of its redemption features and  relieves the investor of the burdensome
administrative  details  involved   in  managing  a   portfolio  of   tax-exempt
securities.  The benefits of investing in the Fund are at least partially offset
by the  expenses involved  in  operating an  investment company.  Such  expenses
primarily  consist of the management fee and  operational costs and, in the case
of certain classes of shares, the account maintenance and distribution costs.
    

SPECIAL AND RISK CONSIDERATIONS RELATING TO ARIZONA MUNICIPAL BONDS

   
    The Fund ordinarily will invest at least 65% of its total assets in  Arizona
Municipal  Bonds,  and therefore  it is  more  susceptible to  factors adversely
affecting issuers of Arizona  Municipal Bonds than is  a tax-exempt mutual  fund
that is not concentrated in issuers of Arizona Municipal Bonds to this degree.
    

   
    As  a state whose population has been growing at rates in excess of national
and regional averages, and  whose economy has evolved  from an agricultural  and
mining  base  to a  service, retail  trade,  government and  manufacturing base,
including high technology  and aerospace  industries, the State  of Arizona  has
experienced  predictable sensitivity to short-term economic events. However, the
significant adverse impact of the
    

                                       11
<PAGE>
   
1986 Tax Reform Act on the State's real estate and construction industries,  the
resulting  failures of numerous financial  institutions, and the acquisitions of
others by  large out-of-state  banks, and  the financial  difficulties of  three
major  employers --  America West  Airlines, Tucson  Electric Power  Company and
Circle K  Corporation  -- have  been  substantially absorbed  and  mitigated  by
increasingly steady economic and population growth.
    

    Because  the  Fund's portfolio  will consist  primarily of  investment grade
securities, the Fund is expected to be  less subject to market and credit  risks
than  a fund that invests in lower  quality Municipal Bonds. See "Description of
Municipal Bonds and Temporary Investments -- Description of Municipal Bonds"  in
the  Statement  of Additional  Information and  Appendix I  to the  Statement of
Additional Information.

DESCRIPTION OF MUNICIPAL BONDS

    Municipal Bonds include debt obligations issued to obtain funds for  various
public  purposes, including construction and equipping of a wide range of public
facilities (including water, sewer, gas, electricity, solid waste, health  care,
transportation,  education  and  housing facilities),  refunding  of outstanding
obligations and  obtaining funds  for general  operating expenses  and loans  to
other  public  institutions  and  facilities.  In  addition,  certain  types  of
industrial development bonds are issued by or on behalf of public authorities to
finance various  privately  operated  facilities,  including  pollution  control
facilities  or other  specialized facilities.  For purposes  of this Prospectus,
such obligations are referred to as Municipal Bonds if the interest paid thereon
is exempt from Federal income tax, and, in the case of Arizona Municipal  Bonds,
exempt  from Arizona personal income tax, even though such bonds may be "private
activity bonds" as discussed below.

    The  two  principal   classifications  of  Municipal   Bonds  are   "general
obligation"  bonds and "revenue" bonds which latter category includes industrial
development bonds  or  private  activity bonds.  General  obligation  bonds  are
secured  by the issuer's  pledge of its  faith, credit and  taxing power for the
payment of principal and interest. The  taxing power of any governmental  entity
may  be limited, however, by  provisions of state constitutions  or laws, and an
entity's creditworthiness  will  depend  on many  factors,  including  potential
erosion  of the tax base due to population declines, natural disasters, declines
in the state's industrial base or inability to attract new industries,  economic
limits  on the ability  to tax without  eroding the tax  base, state legislative
proposals or voter initiatives to limit ad valorem real property taxes, and  the
extent  to which the  entity relies on  Federal or state  aid, access to capital
markets or other factors beyond the state or entity's control. Accordingly,  the
capacity  of the issuer of a general obligation bond as to the timely payment of
interest and the  repayment of principal  when due is  affected by the  issuer's
maintenance  of  its tax  base.  The State  of  Arizona does  not  issue general
obligation bonds;  it may  issue only  revenue bonds,  described below.  General
obligation  bonds may, however, be issued  by counties and municipalities in the
State.

    Revenue bonds are payable only from  the revenues derived from a  particular
facility  or  class of  facilities or,  in some  cases, from  the proceeds  of a
special excise tax or  other specific revenue source  such as payments from  the
user of the facility being financed; accordingly, the timely payment of interest
and  the repayment of principal  in accordance with the  terms of the revenue or
special obligation bond is a function of the economic viability of such facility
or such revenue source. Revenue bonds are not secured by a pledge of the  credit
or  the taxing powers of the  issuer of such bonds. The  Fund may also invest in
Municipal Bonds that are so-called  "moral obligation" bonds; however, the  Fund
may  invest in  Municipal Bonds  which are  moral obligation  bonds only  to the
extent  such  bonds  become  available.  Moral  obligation  bonds  are  normally

                                       12
<PAGE>
issued  by special purpose public authorities.  If an issuer of moral obligation
bonds is unable to meet its obligations, repayment of such bonds becomes a moral
commitment, but  not  a  legal  obligation, of  the  state  or  municipality  in
question.

   
    The  Fund  may purchase  industrial  development bonds  ("IDBs")  or private
activity bonds. IDBs or private activity bonds are tax-exempt securities  issued
by  states,  municipalities  or  public authorities  to  provide  funds, usually
through a loan  or lease arrangement,  to a  private entity for  the purpose  of
financing  construction or improvement of  a facility to be  used by the entity.
Such bonds are  secured primarily by  revenues derived from  loan repayments  or
lease  payments due  from the  entity which may  or may  not be  guaranteed by a
parent company or otherwise secured. Neither IDBs nor private activity bonds are
secured by a pledge of the taxing power of the issuer of such bonds.  Therefore,
an investor should be aware that repayment of such bonds depends on the revenues
of  a private  entity and  be aware  of the  risks that  such an  investment may
entail. Continued ability of an entity  to generate sufficient revenues for  the
payment of principal and interest on such bonds will be affected by many factors
including  the size of the entity, capital structure, demand for its products or
services, competition, general  economic conditions,  government regulation  and
the  corporation's dependence  on revenues  on the  operation of  the particular
facility being financed. The Fund may invest  more than 25% of its total  assets
in IDBs or private activity bonds.
    

   
    The  Fund may invest  in Municipal Bonds the  return on which  is based on a
particular index of value of interest rates. For example, the Fund may invest in
Municipal Bonds that pay interest based  on an index of Municipal Bond  interest
rates  or based  on the  value of  gold or  some other  commodity. The principal
amount payable upon maturity of certain Municipal Bonds also may be based on the
value of an index. To  the extent the Fund invests  in these types of  Municipal
Bonds,  the Fund's return on  such Municipal Bonds will  be subject to risk with
respect to the  value of  the particular  index. Also,  the Fund  may invest  in
so-called  "inverse floating obligations" or  "residual interest bonds" on which
the interest rates typically  decline as market rates  increase and increase  as
market rates decline. To the extent the Fund invests in these types of Municipal
Bonds,  the Fund's return on  such Municipal Bonds will  be subject to risk with
respect to the value of the particular index. Such securities have the effect of
providing a degree of investment leverage,  since they may increase or  decrease
in value in response to changes, as an illustration, in market interest rates at
a  rate which is a multiple (typically two) of the rate at which fixed-rate long
term tax exempt securities increase or decrease in response to such changes.  As
a  result, the market values of such  securities will generally be more volatile
than the market values of fixed-rate tax exempt securities. To seek to limit the
volatility  of  these  securities,  the  Fund  may  purchase  inverse   floating
obligations  with shorter  term maturities or  which contain  limitations on the
extent to which the  interest rate may vary.  The Manager believes that  indexed
and  inverse  floating  obligations represent  a  flexible  portfolio management
instrument for  the  Fund  which  allows  the Manager  to  vary  the  degree  of
investment  leverage relatively  efficiently under  different market conditions.
Certain investments in such obligations may be illiquid. The Fund may not invest
in such illiquid obligations if  such investments, together with other  illiquid
investments, would exceed 10% of the Fund's net assets.
    

    Also   included  within  the   general  category  of   Municipal  Bonds  are
participation certificates  issued  by  government authorities  or  entities  to
finance  the acquisition or  construction of equipment,  land and/or facilities.
The certificates represent  participations in a  lease, an installment  purchase
contract or a conditional sales contract (hereinafter collectively called "lease
obligations")  relating to  such equipment,  land or  facilities. Although lease
obligations do not constitute  general obligations of the  issuer for which  the
issuer's  unlimited taxing  power is pledged,  a lease  obligation is frequently
backed by the issuer's covenant to budget

                                       13
<PAGE>
for, appropriate and make the payments due under the lease obligation.  However,
all  Arizona  Municipal  Bonds  and certain  Municipal  Bonds  lease obligations
contain "non-appropriation"  clauses  which  provide  that  the  issuer  has  no
obligation to make lease or installment purchase payments in future years unless
money   is  appropriated   for  such  purpose   on  a   yearly  basis.  Although
"non-appropriation" lease  obligations  are  secured  by  the  leased  property,
disposition  of the property in the  event of foreclosure might prove difficult.
These securities represent a relatively new  type of financing that has not  yet
developed   the  depth  of  marketability   associated  with  more  conventional
securities. Certain investments in lease  obligations may be illiquid. The  Fund
may  not invest in illiquid lease obligations if such investments, together with
all other illiquid investments, would exceed  10% of the Fund's net assets.  The
Fund may, however, invest without regard to such limitation in lease obligations
which  the Manager, pursuant to guidelines which  have been adopted by the Board
of Trustees  and subject  to the  supervision  of the  Board, determines  to  be
liquid.  The  Manager will  deem  lease obligations  to  be liquid  if  they are
publicly offered and have received an  investment grade rating of Baa or  better
by  Moody's,  or BBB  or better  by Standard  & Poor's  or Fitch.  Unrated lease
obligations, or those rated below investment grade, will be considered liquid if
the obligations come to the market  through an underwritten public offering  and
at  least two dealers are willing to  give competitive bids. In reference to the
latter, the Manager must, among  other things, also review the  creditworthiness
of  the municipality  obligated to make  payment under the  lease obligation and
make certain specified determinations based on such factors as the existence  of
a  rating or credit  enhancement such as  insurance, the frequency  of trades or
quotes for the obligation and the willingness of dealers to make a market in the
obligation.

    Federal tax  legislation has  limited  the types  and  volume of  bonds  the
interest  on which qualifies  for a Federal  income tax exemption.  As a result,
this legislation and legislation which may  be enacted in the future may  affect
the availability of Municipal Bonds for investment by the Fund.

CALL RIGHTS

    The  Fund may  purchase a  Municipal Bond  issuer's right  to call  all or a
portion of  such Municipal  Bond  for mandatory  tender  for purchase  (a  "Call
Right"). A holder of a Call Right may exercise such right to require a mandatory
tender  for  the  purchase  of  related  Municipal  Bonds,  subject  to  certain
conditions. A Call  Right that is  not exercised  prior to the  maturity of  the
related Municipal Bond will expire without value. The economic effect to holding
both  the Call Right  and the related  Municipal Bond is  identical to holding a
Municipal  Bond  as  a  non-callable  security.  Certain  investments  in   such
obligations  may  be  illiquid.  The  Fund  may  not  invest  in  such  illiquid
obligations if such investments, together with other illiquid investments, would
exceed 10% of the Fund's net assets.

WHEN-ISSUED SECURITIES AND DELAYED DELIVERY TRANSACTIONS

    The Fund may purchase or sell Municipal Bonds on a delayed delivery basis or
a when-issued  basis at  fixed  purchase terms.  These transactions  arise  when
securities  are purchased or sold  by the Fund with  payment and delivery taking
place in the future. The purchase will  be recorded on the date the Fund  enters
into the commitment and the value of the obligation will thereafter be reflected
in the calculation of the Fund's net asset value. The value of the obligation on
the  delivery  date may  be more  or less  than its  purchase price.  A separate
account of the Fund will be  established with its custodian consisting of  cash,
cash  equivalents or high grade, liquid Municipal Bonds having a market value at
all times at least equal to the amount of the forward commitment.

                                       14
<PAGE>
FINANCIAL FUTURES TRANSACTIONS AND OPTIONS

    The Fund  is  authorized  to  purchase  and  sell  certain  exchange  traded
financial  futures  contracts  ("financial futures  contracts")  solely  for the
purpose of hedging its investments in Municipal Bonds against declines in  value
and to hedge against increases in the cost of securities it intends to purchase.
However, any transactions involving financial futures or options (including puts
and calls associated therewith) will be in accordance with the Fund's investment
policies and limitations. A financial futures contract obligates the seller of a
contract to deliver and the purchaser of a contract to take delivery of the type
of  financial instrument covered by the contract,  or in the case of index-based
futures contracts to  make and accept  a cash settlement,  at a specific  future
time  for a specified price. A sale of financial futures contracts may provide a
hedge against  a decline  in  the value  of  portfolio securities  because  such
depreciation  may be offset, in whole or in part, by an increase in the value of
the position in the financial futures contracts. A purchase of financial futures
contracts may provide  a hedge  against an increase  in the  cost of  securities
intended  to be purchased, because such appreciation  may be offset, in whole or
in part, by an increase in the  value of the position in the futures  contracts.
Distributions,  if any, of net long-term capital gains from certain transactions
in futures or options are taxable  at long-term capital gains rates for  Federal
income  tax purposes, regardless of the length of time the shareholder has owned
Fund shares. See "Distributions and Taxes -- Taxes".

    The Fund deals in financial futures contracts traded on the Chicago Board of
Trade based on The Bond Buyer Municipal Bond Index, a price-weighted measure  of
the  market value of 40 large, recently issued tax-exempt bonds. There can be no
assurance, however, that a liquid secondary  market will exist to terminate  any
particular  financial  futures  contract at  any  specific  time. If  it  is not
possible to close  a financial futures  position entered into  by the Fund,  the
Fund  would continue  to be  required to make  daily cash  payments of variation
margin in the event of adverse price movements. In such a situation, if the Fund
has insufficient cash, it  may have to sell  portfolio securities to meet  daily
variation margin requirements at a time when it may be disadvantageous to do so.
The  inability to close  financial futures positions also  could have an adverse
impact on the Fund's  ability to hedge  effectively. There is  also the risk  of
loss  by the Fund of margin deposits in the event of bankruptcy of a broker with
whom the Fund has an open position in a financial futures contract.

    The  Fund  may  purchase  and  sell  financial  futures  contracts  on  U.S.
Government  securities  and write  and  purchase put  and  call options  on such
futures contracts  as a  hedge  against adverse  changes  in interest  rates  as
described more fully in the Statement of Additional Information. With respect to
U.S.  Government  securities, currently  there  are financial  futures contracts
based on  long-term U.S.  Treasury bonds,  Treasury notes,  Government  National
Mortgage Association ("GNMA") Certificates and three-month U.S. Treasury bills.

    Subject  to policies adopted  by the Trustees,  the Fund also  may engage in
other financial  futures contracts  transactions and  options thereon,  such  as
financial futures contracts or options on other municipal bond indexes which may
become available if the Manager of the Fund and the Trustees of the Trust should
determine  that there is normally a sufficient correlation between the prices of
such futures contracts and the Municipal Bonds in which the Fund invests to make
such hedging appropriate.

    Utilization of futures transactions and options thereon involves the risk of
imperfect correlation  in  movements  in  the price  of  futures  contracts  and
movements in the price of the security which is the subject of the hedge. If the
price  of the futures contract moves more or less than the price of the security
that is the

                                       15
<PAGE>
subject  of the hedge, the Fund will experience a gain or loss which will not be
completely offset by movements in the price of such security. There is a risk of
imperfect correlation  where the  securities underlying  futures contracts  have
different  maturities,  ratings  or  geographic mixes  than  the  security being
hedged. In  addition,  the  correlation  may be  affected  by  additions  to  or
deletions  from  the index  which  serves as  a  basis for  a  financial futures
contract.  Finally,  in  the  case  of  futures  contracts  on  U.S.  Government
securities and options on such futures contracts, the anticipated correlation of
price movements between the U.S. Government securities underlying the futures or
options  and Municipal Bonds  may be adversely  affected by economic, political,
legislative  or  other  developments  which  have  a  disparate  impact  on  the
respective markets for such securities.

    Under  regulations of the Commodity Futures Trading Commission ("CFTC"), the
futures trading activities described  herein will not result  in the Fund  being
deemed  to be  a "commodity pool",  as defined under  such regulations, provided
that the  Fund adheres  to certain  restrictions. In  particular, the  Fund  may
purchase  and sell futures contracts and options  thereon (i) only for bona fide
hedging purposes, and (ii)  for non-hedging purposes,  if the aggregate  initial
margins  and  premiums required  to establish  positions  in such  contracts and
options does not  exceed 5%  of the liquidation  value of  the Fund's  portfolio
assets after taking into account unrealized profits and unrealized losses on any
such  contracts  and options.  (However, as  stated above,  the Fund  intends to
engage in options and  futures transactions only  for hedging purposes.)  Margin
deposits  may consist  of cash  or securities acceptable  to the  broker and the
relevant contract market.

    When the  Fund purchases  a futures  contract,  or writes  a put  option  or
purchases  a  call option  thereon, it  will  maintain an  amount of  cash, cash
equivalents (e.g.,  high  grade commercial  paper  and daily  tender  adjustable
notes)  or  short-term,  high-grade,  fixed-income  securities  in  a segregated
account with the  Fund's custodian, so  that the amount  so segregated plus  the
amount  of initial and variation margin held in the account of its broker equals
the market value of the futures contracts, thereby ensuring that the use of such
futures contract  is unleveraged.  It is  not anticipated  that transactions  in
futures contracts will have the effect of increasing portfolio turnover.

    Although certain risks are involved in options and futures transactions, the
Manager believes that, because the Fund will engage in futures transactions only
for  hedging purposes,  the futures  portfolio strategies  of the  Fund will not
subject the  Fund to  certain risks  frequently associated  with speculation  in
futures transactions. The Fund must meet certain Federal income tax requirements
under  the Internal Revenue Code  of 1986, as amended  (the "Code"), in order to
qualify for the special tax  treatment afforded regulated investment  companies,
including  a requirement that less than 30%  of its gross income be derived from
the sale or  other disposition of  securities held for  less than three  months.
Additionally,  the Fund is required to meet certain diversification requirements
under the Code.

    The liquidity of a secondary market  in a futures contract may be  adversely
affected  by "daily price fluctuation limits" established by commodity exchanges
which limit  the amount  of fluctuation  in a  futures contract  price during  a
single  trading day. Once the  daily limit has been  reached in the contract, no
trades may be  entered into at  a price  beyond the limit,  thus preventing  the
liquidation  of open futures positions. Prices have in the past moved beyond the
daily limit on a number of consecutive trading days.

    The successful use of transactions in futures also depends on the ability of
the Manager to  forecast correctly  the direction  and extent  of interest  rate
movements  within a given  time frame. To  the extent these  rates remain stable
during the period in which a futures contract is held by the Fund or moves in  a
direction

                                       16
<PAGE>
opposite  to  that anticipated,  the  Fund may  realize  a loss  on  the hedging
transaction which is not fully or partially  offset by an increase in the  value
of  portfolio securities. As a  result, the Fund's total  return for such period
may be less than if it had not engaged in the hedging transaction.  Furthermore,
the  Fund will only engage in hedging transactions from time to time and may not
necessarily be engaging in hedging transactions when movements in interest rates
occur.

    Reference is made  to the  Statement of Additional  Information for  further
information on financial futures contracts and certain options thereon.

   
REPURCHASE AGREEMENTS
    

   
    As  Temporary Investments,  the Fund  may invest  in securities  pursuant to
repurchase agreements. Repurchase  agreements may  be entered into  only with  a
member  bank of the Federal Reserve System  or primary dealer in U.S. Government
securities or an affiliate  thereof. Under such  agreements, the seller  agrees,
upon  entering into the contract, to repurchase  the security from the Fund at a
mutually agreed upon time  and price, thereby determining  the yield during  the
term  of the agreement.  This results in  a fixed rate  of return insulated from
market fluctuations during such  period. The Fund may  not invest in  repurchase
agreements  maturing in more than seven  days if such investments, together with
all other illiquid  investments, exceed  10% of the  Fund's net  assets. In  the
event of default by the seller under a repurchase agreement, the Fund may suffer
time  delays  and  incur  costs  or  possible  losses  in  connection  with  the
disposition of the underlying securities.
    

   
INVESTMENT RESTRICTIONS
    

    The Fund has adopted a number  of restrictions and policies relating to  the
investment  of  the  Fund's assets  and  its activities,  which  are fundamental
policies of the Fund and may not be changed without the approval of the  holders
of  a majority of  the Fund's outstanding  voting securities, as  defined in the
1940 Act.  Among  the more  significant  restrictions,  the Fund  may  not:  (i)
purchase  any  securities other  than securities  referred to  under "Investment
Objective and Policies" herein;  (ii) with respect to  75% of its total  assets,
invest in the securities of any one issuer if, immediately after and as a result
of  such investment, the value of the holdings  of the Fund in the securities of
such issuer exceeds 5% of the Fund's total assets, taken at market value, except
that such restriction shall not apply to securities issued or guaranteed by  the
United  States  Government  or any  of  its agencies  or  instrumentalities [For
purposes of this restriction, the Fund will regard each state and each political
subdivision, agency or instrumentality of such state and each multi-state agency
of which  such  state  is  a  member and  each  public  authority  which  issues
securities  on behalf of a  private entity as a  separate issuer, except that if
the security  is backed  only by  the assets  and revenues  of a  non-government
entity  then  the entity  with the  ultimate responsibility  for the  payment of
interest and  principal may  be  regarded as  the  sole issuer.];  (iii)  borrow
amounts  in excess of 20%  of its total assets  taken at market value (including
the amount  borrowed), and  then only  from  banks as  a temporary  measure  for
extraordinary or emergency purposes [The Fund will not purchase securities while
borrowings  are  outstanding.]; (iv)  mortgage,  pledge, hypothecate  or  in any
manner transfer as security for indebtedness any securities owned or held by the
Fund except in  connection with  certain specified transactions;  (v) invest  in
securities  which  cannot  be readily  resold  because of  legal  or contractual
restrictions  or  which  are  not  readily  marketable,  including  individually
negotiated  loans  that  constitute  illiquid  investments  and  illiquid  lease
obligations, and  in  repurchase  agreements and  purchase  and  sale  contracts
maturing  in  more than  seven  days, if,  regarding  all such  securities taken
together, more than 10% of its net assets (taken at market value at the time  of
each  investment) would be invested in such securities; (vi) invest more than 5%
of its total assets

                                       17
<PAGE>
(taken at market  value at the  time of each  investment) in industrial  revenue
bonds  where the  entity supplying the  revenues from  which the issue  is to be
paid, including predecessors, has a record of less than three years'  continuous
business operation; and (vii) invest more than 25% of its total assets (taken at
market  value at the  time of each  investment) in securities  of issuers in any
particular  industry  (other  than   United  States  Government  securities   or
Government agency securities or Municipal Bonds).

   
    The  Board of  Trustees of the  Fund, at a  meeting held on  August 3, 1994,
approved certain  changes  to  the fundamental  and  non-fundamental  investment
restrictions  of the  Fund. These changes  were proposed in  connection with the
creation of  a  set  of  standard  fundamental  and  non-fundamental  investment
restrictions  that would be adopted, subject  to shareholder approval, by all of
the non-money market mutual funds advised  by MLAM or FAM. The proposed  uniform
investment  restrictions are designed to provide  each of these funds, including
the Fund, with as much investment  flexibility as possible under the  Investment
Company   Act  and   applicable  state  securities   regulations,  help  promote
operational efficiencies and facilitate monitoring of compliance. The investment
objectives and policies of the  Fund will be unaffected  by the adoption of  the
proposed investment restrictions.
    

   
    The  full text  of the proposed  investment restrictions is  set forth under
"Investment  Restrictions"   in  the   Statement  of   Additional   Information.
Shareholders  of  the  Fund are  currently  considering whether  to  approve the
proposed revised  investment  restrictions.  If  such  shareholder  approval  is
obtained,  the Fund's  current investment restrictions  will be  replaced by the
proposed restrictions, and  the Fund's  Prospectus and  Statement of  Additional
Information will be supplemented to reflect such change.
    

    Investors  are referred  to the  Statement of  Additional Information  for a
complete description of the Fund's investment restrictions.

                                       18
<PAGE>
                            MANAGEMENT OF THE TRUST

TRUSTEES

    The Trustees of the Trust consist of  six individuals, five of whom are  not
"interested  persons" of the Trust as defined  in the 1940 Act. The Trustees are
responsible for the overall supervision of  the operations of the Trust and  the
Fund  and perform  the various  duties imposed on  the directors  or trustees of
investment companies by the 1940 Act.

    The Trustees are:

   
    ARTHUR ZEIKEL* -- President and Chief Investment Officer of the Manager  and
MLAM  Merrill Lynch Asset  Management, L.P. ("MLAM");  President and Director of
Princeton Services, Inc.; Executive Vice President of Merrill Lynch & Co.,  Inc.
("ML  & Co.") and Executive Vice President of Merrill Lynch; and Director of the
Distributor.
    

    KENNETH S. AXELSON  -- Former  Executive Vice President  and Director,  J.C.
Penney Company, Inc.

   
    HERBERT  I.  LONDON  --  John  M. Olin  Professor  of  Humanities,  New York
University.
    

   
    ROBERT R. MARTIN -- Chairman, WTC  Industries, Inc. and former Chairman  and
Chief Executive Officer, Kinnard Investments, Inc.
    

    JOSEPH L. MAY -- Attorney in private practice.

   
    ANDRE F. PEROLD -- Professor, Harvard Business School.
    
- ---------
* Interested person, as defined in the 1940 Act, of the Trust.

MANAGEMENT AND ADVISORY ARRANGEMENTS

   
    The Manager, which is an affiliate of MLAM and is owned and controlled by ML
&  Co., a financial services  holding company, acts as  the manager for the Fund
and provides the Fund with management services. The Manager or MLAM acts as  the
investment adviser for more than 100 other registered investment companies. MLAM
also  provides  investment  advisory services  to  individual  and institutional
accounts. As  of  August  31,  1994,  the  Manager  and  MLAM  had  a  total  of
approximately  $165.7 billion in  investment company and  other portfolio assets
under management, including accounts of certain affiliates of the Manager.
    

    Subject to the direction of the Trustees, the Manager is responsible for the
actual management  of the  Fund's portfolio  and constantly  reviews the  Fund's
holdings  in light  of its  own research analysis  and that  from other relevant
sources. The  responsibility  for  making  decisions to  buy,  sell  or  hold  a
particular  security rests with the Manager. The Manager performs certain of the
other administrative services  and provides  all the  office space,  facilities,
equipment and necessary personnel for management of the Fund.

    Vincent  R. Giordano  and Kenneth  A. Jacob  are Portfolio  Managers for the
Fund. Vincent R. Giordano has been a  Portfolio Manager of the Manager and  MLAM
since  1977 and  a Senior  Vice President  of the  Manager and  MLAM since 1984.
Kenneth A. Jacob has been a Vice President of the Manager and MLAM since 1984.

                                       19
<PAGE>
   
    Pursuant to the management  agreement between the Manager  and the Trust  on
behalf  of the  Fund (the  "Management Agreement"),  the Manager  is entitled to
receive from the Fund a monthly fee  based upon the average daily net assets  of
the  Fund at the following  annual rates: 0.55% of  the average daily net assets
not exceeding $500  million; 0.525% of  the average daily  net assets  exceeding
$500  million but not exceeding $1.0 billion; and 0.50% of the average daily net
assets exceeding $1.0 billion. For the year  ended July 31, 1994, the total  fee
paid  by the Fund  to the Manager was  $566,701 (based on  average net assets of
approximately $103.3 million), of which $239,468 was voluntarily waived.
    

   
    The Management Agreement obligates the Fund to pay certain expenses incurred
in the Fund's  operations, including,  among other things,  the management  fee,
legal  and audit  fees, unaffiliated  Trustees' fees  and expenses, registration
fees, custodian  and transfer  agency fees,  accounting and  pricing costs,  and
certain  of the costs of printing proxies, shareholder reports, prospectuses and
statements of additional  information. Accounting services  are provided to  the
Fund  by  the Manager  and  the Fund  reimburses the  Manager  for its  costs in
connection with such services. For the fiscal year ended July 31, 1994, the Fund
reimbursed the Manager $48,042 for accounting services. For the year ended  July
31,  1994, the ratio of  total expenses, excluding distribution  fees and net of
reimbursement, to average net assets  was .56% for the  Class A shares and  .57%
for  the Class B  shares; no Class  C shares or  Class D shares  had been issued
during that year.
    

TRANSFER AGENCY SERVICES

   
    Financial  Data  Services,   Inc.  (the  "Transfer   Agent"),  which  is   a
wholly-owned subsidiary of ML & Co., acts as the Trust's transfer agent pursuant
to  a  transfer agency,  dividend  disbursing agency  and  shareholder servicing
agency agreement (the  "Transfer Agency  Agreement"). Pursuant  to the  Transfer
Agency  Agreement, the Transfer Agent is  responsible for the issuance, transfer
and redemption  of  shares  and  the  opening  and  maintenance  of  shareholder
accounts.  Pursuant to the Transfer Agency Agreement, the Fund pays the Transfer
Agent an annual fee  of $11.00 per  Class A or Class  D shareholder account  and
$14.00  per Class B  or Class C  shareholder account, and  the Transfer Agent is
entitled to reimbursement from the  Fund for out-of-pocket expenses incurred  by
the  Transfer Agent under the Transfer Agency Agreement. For the year ended July
31, 1994, the Fund paid  the Transfer Agent a total  fee of $41,102 pursuant  to
the  Transfer Agency Agreement for providing transfer agency services. At August
31, 1994,  the  Fund  had  363  Class A  shareholder  accounts,  2,423  Class  B
shareholder accounts, no Class C shareholder accounts and no Class D shareholder
accounts.  At this  level of  accounts, the annual  fee payable  to the Transfer
Agent would aggregate approximately $37,915 plus out-of-pocket expenses.
    

                               PURCHASE OF SHARES

   
    Merrill Lynch Funds Distributor, Inc.  (the "Distributor"), an affiliate  of
the  Manager, MLAM and Merrill  Lynch, acts as the  distributor of the shares of
the Fund.  Shares  of  the  Fund  are  offered  continuously  for  sale  by  the
Distributor  and other  eligible securities  dealers (including  Merrill Lynch).
Shares of the  Fund may be  purchased from  securities dealers or  by mailing  a
purchase  order directly to the Transfer  Agent. The minimum initial purchase is
$1,000 and the minimum subsequent purchase is $50.
    

   
    The Fund is offering its shares in  four classes at a public offering  price
equal  to  the next  determined net  asset  value per  share plus  sales charges
imposed either at the time of purchase or on a deferred basis depending upon the
class of  shares  selected  by  the investor  under  the  Merrill  Lynch  Select
Pricing-SM- System
    

                                       20
<PAGE>
   
as  described below. The applicable offering  price for purchase orders is based
upon the  net asset  value of  the Fund  next determined  after receipt  of  the
purchase orders by the Distributor. As to purchase orders received by securities
dealers  prior to 4:15 P.M., New York time, which includes orders received after
the determination  of  net asset  value  on  the previous  day,  the  applicable
offering  price will be based on the net  asset value determined as of 4:15 P.M.
on the day the  order is placed  with the Distributor,  provided the orders  are
received  by the Distributor prior to 4:30 P.M.,  New York time, on that day. If
the purchase orders are  not received prior  to 4:30 P.M.,  New York time,  such
orders  shall be  deemed received  on the  next business  day. Any  order may be
rejected by  the Distributor  or the  Trust. The  Trust or  the Distributor  may
suspend  the offering of the Fund's shares of  any class at any time in response
to conditions in the securities markets  or otherwise and may thereafter  resume
such offering from time to time. Any order may be rejected by the Distributor or
the  Trust. Neither  the Distributor nor  the dealers are  permitted to withhold
placing orders to benefit themselves by a price change. Merrill Lynch may charge
its customers a processing fee (presently $4.85) to confirm a sale of shares  to
such  customers. Purchases  directly through the  Fund's Transfer  Agent are not
subject to the processing fee.
    

   
    The Fund  issues four  classes  of shares  under  the Merrill  Lynch  Select
Pricing-SM-  System,  which  permits  each  investor  to  choose  the  method of
purchasing shares that the investor believes is most beneficial given the amount
of the purchase, the length of time the investor expects to hold the shares  and
other  relevant  circumstances.  Shares of  Class  A  and Class  D  are  sold to
investors choosing the initial sales charge  alternatives and shares of Class  B
and   Class  C  are  sold  to  investors  choosing  the  deferred  sales  charge
alternatives.  Investors  should  determine   whether  under  their   particular
circumstances  it is more  advantageous to incur  an initial sales  charge or to
have the entire initial purchase price invested in the Fund with the  investment
thereafter  being  subject to  a contingent  deferred  sales charge  and ongoing
distribution fees. A discussion of the factors that investors should consider in
determining the  method of  purchasing  shares under  the Merrill  Lynch  Select
Pricing-SM-  System is set forth under "Merrill Lynch Select Pricing-SM- System"
on page 4.
    

   
    Each Class A,  Class B, Class  C and Class  D share of  the Fund  represents
identical  interests in the  investment portfolio of  the Fund and  has the same
rights, except that Class B, Class C and Class D shares bear the expenses of the
ongoing account  maintenance fees,  and Class  B  and Class  C shares  bear  the
expenses  of  the  ongoing  distribution  fees  and  the  additional incremental
transfer agency costs resulting from the deferred sales charge arrangements. The
deferred sales charges and account maintenance fees that are imposed on Class  B
and  Class C shares, as well as the account maintenance fees that are imposed on
Class D shares, will be imposed  directly against those classes and not  against
all  assets of the Fund  and, accordingly, such charges  will not affect the net
asset value of any other class or have any impact on investors choosing  another
sales charge option. Dividends paid by the Fund for each class of shares will be
calculated  in the  same manner  at the same  time and  will differ  only to the
extent that  account  maintenance  and distribution  fees  and  any  incremental
transfer  agency costs relating  to a particular class  are borne exclusively by
that class. Class  B, Class  C and  Class D  shares each  have exclusive  voting
rights  with respect to the Rule 12b-1 distribution plan adopted with respect to
such class pursuant to  which account maintenance  and/or distribution fees  are
paid.  See  "Distribution  Plans"  below.  Each  class  has  different  exchange
privileges. See "Shareholder Services -- Exchange Privilege".
    

   
    Investors should understand  that the  purpose and function  of the  initial
sales  charges with respect to Class A and  Class D shares are the same as those
of   the   deferred   sales    charges   with   respect    to   Class   B    and
    

                                       21
<PAGE>
   
Class  C shares in that  the sales charges applicable  to each class provide for
the  financing  of   the  distribution   of  the   shares  of   the  Fund.   The
distribution-related  revenues paid with respect to a  class will not be used to
finance the  distribution expenditures  of another  class. Sales  personnel  may
receive   different  compensation  for  selling  different  classes  of  shares.
Investors are advised that only Class A and Class D shares may be available  for
purchase  through  securities  dealers,  other  than  Merrill  Lynch,  which are
eligible to sell shares.
    

   
    The following table sets  forth a summary  of the distribution  arrangements
for each class of shares under the Merrill Lynch Select Pricing-SM- System.
    

   
<TABLE>
<CAPTION>

                                                  ACCOUNT
                                                MAINTENANCE   DISTRIBUTION
CLASS             SALES CHARGE(1)                   FEE           FEE                 CONVERSION FEATURE
<C>   <S>                                       <C>           <C>          <C>
  A   Maximum 4.00% initial sales charge(2)(3)      No             No      No
  B   CDSC for a period of 4 years, at a rate      0.25%         0.25%     B shares convert to D shares
        of 4.0% during the first year,                                       automatically after approximately ten
        decreasing 1.0% annually to 0.0%                                     years(4)
  C   1.0% CDSC for one year                       0.25%         0.35%     No
  D   Maximum 4.00% initial sales charge(3)        0.10%           No      No

<FN>

(1)  Initial  sales charges are imposed at the  time of purchase as a percentage
     of the offering price. CDSCs may be imposed if the redemption occurs within
     the applicable CDSC time period. The  charge will be assessed on an  amount
     equal to the lesser of the proceeds of redemption or the cost of the shares
     being redeemed.
(2)  Offered  only to eligible investors.  See "Initial Sales Charge Alternative
     -- Class A and Class D Shares -- Eligible Class A Investors".
(3)  Reduced for  purchases  of $25,000  or  more. Class  A  and Class  D  share
     purchases  of $1,000,000  or more  may not be  subject to  an initial sales
     charge but instead may be subject to a CDSC if redeemed within one year.
(4)  The conversion period for dividend  reinvestment shares is modified.  Also,
     Class  B  shares  of certain  other  MLAM-advised mutual  funds  into which
     exchanges may be  made have  an eight year  conversion period.  If Class  B
     shares of the Fund are exchanged for Class B shares of another MLAM-advised
     mutual  fund,  the  conversion  period applicable  to  the  Class  B shares
     acquired in the exchange will apply, and the holding period for the  shares
     exchanged will be tacked onto the holding period for the shares acquired.
</TABLE>
    

   
INITIAL SALES CHARGE ALTERNATIVE--CLASS A AND CLASS D SHARES
    
   
    INVESTORS CHOOSING THE INITIAL SALES CHARGE ALTERNATIVES WHO ARE ELIGIBLE TO
PURCHASE  CLASS A  SHARES SHOULD  PURCHASE CLASS  A SHARES  RATHER THAN  CLASS D
SHARES BECAUSE THERE IS AN ACCOUNT MAINTENANCE FEE IMPOSED ON CLASS D SHARES.
    

                                       22
<PAGE>
   
    The public  offering price  of Class  A and  Class D  shares for  purchasers
choosing  the initial sales charge alternative  is the next determined net asset
value plus varying sales charges (i.e., sales loads), as set forth below.
    

   
<TABLE>
<CAPTION>
                                                               SALES CHARGE AS    SALES CHARGE AS    DISCOUNT TO SELECTED
                                                                PERCENTAGE OF   PERCENTAGE* OF THE   DEALERS AS PERCENTAGE
                     AMOUNT OF PURCHASE                        OFFERING PRICE   NET AMOUNT INVESTED  OF THE OFFERING PRICE
- -------------------------------------------------------------  ---------------  -------------------  ---------------------
<S>                                                            <C>              <C>                  <C>
Less than $25,000............................................          4.00%              4.17%                 3.75%
$25,000 but less than $50,000................................          3.75               3.90                  3.50
$50,000 but less than $100,000...............................          3.25               3.36                  3.00
$100,000 but less than $250,000..............................          2.50               2.56                  2.25
$250,000 but less than $1,000,000............................          1.50               1.52                  1.25
$1,000,000 and over**........................................          0.00               0.00                  0.00
<FN>
- ------------
 *   Rounded to the nearest one-hundredth percent.

**   The initial sales charge may be waived on Class A and Class D purchases  of
     $1,000,000  or more made on or after  October 21, 1994. If the sales charge
     is waived, such purchases will be subject to a CDSC of 1% if the shares are
     redeemed within one year  after purchase. Class A  purchases made prior  to
     October 21, 1994 may be subject to a CDSC if the shares are redeemed within
     one  year  of  purchase  at  the following  rates:  0.75%  on  purchases of
     $1,000,000 to $2,500,000; 0.40% on  purchases of $2,500,001 to  $3,500,000;
     0.25%  on purchases of $3,500,001 to  $5,000,000; and 0.20% on purchases of
     more than $5,000,000 in lieu of paying an initial sales charge. The  charge
     will  be assessed on an  amount equal to the lesser  of the proceeds of the
     redemption or the cost of the shares being redeemed.
</TABLE>
    

   
    The Distributor may  reallow discounts  to selected dealers  and retain  the
balance  over such  discounts. At times  the Distributor may  reallow the entire
sales charge to such dealers. Since securities dealers selling Class A shares of
the Fund will receive a concession equal  to most of the sales charge, they  may
be  deemed to  be underwriters  under the  Securities Act  of 1933,  as amended.
During the fiscal year ended July 31, 1994, the Fund sold 627,096 Class A shares
for aggregate net proceeds of $6,804,755.  The gross sales charges for the  sale
of  Class A shares of the  Fund for that year were  $82,434, of which $6,133 and
$76,301 were received by  the Distributor and  Merrill Lynch, respectively.  For
the  fiscal year ended July 31, 1994, the Distributor received CDSCs of $13,734,
all of which were paid to Merrill  Lynch, with respect to redemption within  one
year  after  purchase of  Class A  shares purchased  subject to  front-end sales
charge waivers.
    

   
    ELIGIBLE CLASS A INVESTORS.  Class A  shares are offered to a limited  group
of  investors  and  also  will  be  issued  upon  reinvestment  of  dividends on
outstanding Class A  shares. Investors that  currently own Class  A shares in  a
shareholder  account are entitled to purchase  additional Class A shares in that
account. Class A shares are available  at net asset value to corporate  warranty
insurance reserve Fund programs provided that the program has $3 million or more
initially invested in MLAM-advised mutual funds. Also eligible to purchase Class
A  shares at  net asset  value are  participants in  certain investment programs
including TMA-SM- Managed Trusts to  which Merrill Lynch Trust Company  provides
discretionary trustee services and certain purchases made in connection with the
Merrill  Lynch Mutual Fund Adviser program. In  addition, Class A shares will be
offered at net asset value to ML & Co. and its subsidiaries and their  directors
and employees and to members of the Boards of MLAM-advised investment companies,
including   the  Fund.  Certain  persons  who  acquire  shares  of  MLAM-advised
closed-end funds who  wish to reinvest  the net  proceeds from a  sale of  their
closed-end  fund shares of common stock in  shares of the Fund also may purchase
Class A shares of the Fund if  certain conditions set forth in the Statement  of
Additional Information are met. For
    

                                       23
<PAGE>
   
example,  Class A shares of the Fund and certain other MLAM-advised mutual funds
are offered at net asset value to shareholders of Merrill Lynch Senior  Floating
Rate  Fund, Inc. who wish to reinvest the net proceeds from a sale of certain of
their shares of common stock of Merrill Lynch Senior Floating Rate Fund, Inc. in
shares of such funds.
    

   
    REDUCED INITIAL SALES CHARGES.   No initial sales  charges are imposed  upon
Class  A and Class D shares issued as  a result of the automatic reinvestment of
dividends or capital gains distributions. Class A and Class D sales charges also
may be reduced under a Right of Accumulation and a Letter of Intention.
    

   
    Class A shares are offered  at net asset value  to certain eligible Class  A
investors as set forth above under "Eligible Class A Investors".
    

   
    Class D shares are offered at net asset value, without a sales charge, to an
investor  who  has  a  business  relationship  with  a  Merrill  Lynch financial
consultant, if  certain conditions  set  forth in  the Statement  of  Additional
Information  are  met. Class  D  shares may  be offered  at  net asset  value in
connection with the acquisition of assets of other investment companies.
    

   
    Additional information concerning these reduced initial sales charges is set
forth in the Statement of Additional Information.
    

   
DEFERRED SALES CHARGE ALTERNATIVES--CLASS B AND CLASS C SHARES
    
   
    INVESTORS CHOOSING THE  DEFERRED SALES CHARGE  ALTERNATIVES SHOULD  CONSIDER
CLASS  B SHARES IF  THEY INTEND TO HOLD  THEIR SHARES FOR  AN EXTENDED PERIOD OF
TIME AND CLASS  C SHARES IF  THEY ARE UNCERTAIN  AS TO THE  LENGTH OF TIME  THEY
INTEND TO HOLD THEIR ASSETS IN MLAM-ADVISED MUTUAL FUNDS.
    

   
    The  public  offering price  of Class  B  and Class  C shares  for investors
choosing the deferred sales charge alternatives is the next determined net asset
value per  share  without the  imposition  of a  sales  charge at  the  time  of
purchase.  As discussed below, Class  B shares are subject  to a four year CDSC,
while Class C  shares are subject  only to a  one year 1.0%  CDSC. On the  other
hand,  approximately ten  years after  Class B shares  are issued,  such Class B
shares, together with shares issued  upon dividend reinvestment with respect  to
those  shares, are automatically converted  into Class D shares  of the Fund and
thereafter will be subject to lower continuing fees. See "Conversion of Class  B
Shares  to Class D Shares" below. Both Class B and Class C shares are subject to
an account maintenance fee of 0.25% of net assets and Class B and Class C shares
are subject to distribution fees of 0.25% and 0.35%, respectively, of net assets
as discussed below  under "Distribution  Plans". The proceeds  from the  account
maintenance  fees are used to compensate  Merrill Lynch for providing continuing
account maintenance activities.
    

   
    Class B and Class C shares are sold without an initial sales charge so  that
the  Fund  will receive  the  full amount  of  the investor's  purchase payment.
Merrill Lynch  compensates its  financial consultants  for selling  Class B  and
Class  C shares at  the time of  purchase from its  own funds. See "Distribution
Plans" below.
    

   
    Proceeds from the CDSC and distribution fee are paid to the Distributor  and
are  used in  whole or  in part  by the  Distributor to  defray the  expenses of
dealers (including  Merrill  Lynch) related  to  providing  distribution-related
services  to the Fund  in connection with  the sale of  the Class B  and Class C
shares, such as the payment of compensation to financial consultants for selling
Class B and Class C shares, from the dealers' own funds. The combination of  the
CDSC  and the ongoing  distribution fee facilitates  the ability of  the Fund to
sell the Class B and Class C shares without a sales charge being deducted at the
time of purchase.
    

                                       24
<PAGE>
   
Approximately  ten  years   after  issuance,   Class  B   shares  will   convert
automatically  into Class  D shares of  the Fund,  which are subject  to a lower
account maintenance fee and no distribution fee; Class B shares of certain other
MLAM-advised mutual funds into which exchanges may be made convert into Class  D
shares  automatically after  approximately ten years.  If Class B  shares of the
Fund are exchanged for Class B  shares of another MLAM-advised mutual fund,  the
conversion period applicable to the Class B shares acquired in the exchange will
apply,  and the holding period for the  shares exchanged will be tacked onto the
holding period for the shares acquired.
    

   
    Imposition of the  CDSC and  the distribution  fee on  Class B  and Class  C
shares is limited by the NASD asset-based sales charge rule. See "Limitations on
the  Payment of  Deferred Sales  Charges" below.  The proceeds  from the ongoing
account maintenance  fee are  used  to compensate  Merrill Lynch  for  providing
continuing  account  maintenance activities.  Class B  shareholders of  the Fund
exercising the  exchange  privilege  described under  "Shareholder  Services  --
Exchange  Privilege" will continue to be subject  to the Fund's CDSC schedule if
such schedule is higher than  the CDSC schedule relating  to the Class B  shares
acquired as a result of the exchange.
    

   
    CONTINGENT DEFERRED SALES CHARGES--CLASS B SHARES.  Class B shares which are
redeemed within four years of purchase may be subject to a CDSC at the rates set
forth  below charged as a  percentage of the dollar  amount subject thereto. The
charge will be  assessed on an  amount equal to  the lesser of  the proceeds  of
redemption  or the cost of the shares  being redeemed. Accordingly, no CDSC will
be imposed on increases in net asset value above the initial purchase price.  In
addition,  no charge  will be  assessed on  shares derived  from reinvestment of
dividends or capital gains distributions.
    

    The following table sets forth the rates of the CDSC:

<TABLE>
<CAPTION>
                                                                                 CDSC AS A
                                                                               PERCENTAGE OF
                                                                               DOLLAR AMOUNT
                                                                                 SUBJECT TO
YEAR SINCE PURCHASE PAYMENT MADE                                                   CHARGE
- ----------------------------------------------------------------------------  ----------------
<S>                                                                           <C>
0-1.........................................................................        4.0%
1-2.........................................................................        3.0%
2-3.........................................................................        2.0%
3-4.........................................................................        1.0%
4 and thereafter............................................................        None
</TABLE>

   
    For the fiscal year ended July  31, 1994, the Distributor received CDSCs  of
$217,476  with respect to redemptions of Class  B shares, all of which were paid
to Merrill Lynch.
    

   
    In determining whether a CDSC is applicable to a redemption, the calculation
will be determined  in the  manner that results  in the  lowest applicable  rate
being  charged. Therefore, it  will be assumed  that the redemption  is first of
shares held for over four years  or shares acquired pursuant to reinvestment  of
dividends  or distributions and then of shares held longest during the four-year
period. The  charge  will not  be  applied  to dollar  amounts  representing  an
increase in the net asset value since the time of purchase. A transfer of shares
from  a shareholder's account to  another account will be  assumed to be made in
the same order as a redemption.
    

    To provide an example,  assume an investor purchased  100 shares at $10  per
share  (at a cost of $1,000) and in the third year after purchase, the net asset
value   per   share   is   $12    and,   during   such   time,   the    investor

                                       25
<PAGE>
   
has  acquired 10 additional  shares upon dividend reinvestment.  If at such time
the investor makes his or her first redemption of 50 shares (proceeds of  $600),
10  shares will not be subject to  charge because of dividend reinvestment. With
respect to the remaining 40 shares, the  charge is applied only to the  original
cost  of $10  per share and  not to the  increase in  net asset value  of $2 per
share. Therefore, $400 of the $600 redemption proceeds will be charged at a rate
of 2.0% (the applicable rate in the third year after purchase).
    

   
    The Class B CDSC is waived on  redemptions of shares following the death  or
disability  (as defined in the  Internal Revenue Code of  1986, as amended) of a
shareholder. Additional information concerning the waiver of the Class B CDSC is
set forth in the Statement of Additional Information.
    

   
    CONTINGENT DEFERRED SALES CHARGES--CLASS C SHARES.  Class C shares which are
redeemed within one year of purchase may be subject to a 1.0% CDSC charged as  a
percentage  of the dollar amount subject thereto. The charge will be assessed on
an amount equal to the lesser of the  proceeds of redemption or the cost of  the
shares being redeemed. Accordingly, no Class C CDSC will be imposed on increases
in  net asset value  above the initial  purchase price. In  addition, no Class C
CDSC will  be assessed  on  shares derived  from  reinvestment of  dividends  or
capital gains distributions.
    

   
    In  determining whether a  Class C CDSC  is applicable to  a redemption, the
calculation will be determined in the manner that results in the lowest possible
rate being charged. Therefore, it will  be assumed that the redemption is  first
of  shares held for over one year or shares acquired pursuant to reinvestment of
dividends or distributions and then of  shares held longest during the  one-year
period.  The charge  will not  be applicable  to dollar  amounts representing an
increase in the net asset value since the time of purchase. A transfer of shares
from a shareholder's account to  another account will be  assumed to be made  in
the same order as a redemption.
    

   
    CONVERSION  OF CLASS B  SHARES TO CLASS  D SHARES.   After approximately ten
years (the "Conversion Period"), Class B shares will be converted  automatically
into  Class D  shares of  the Fund.  Class D  shares are  subject to  an ongoing
account maintenance  fee of  0.10% of  net assets  but are  not subject  to  the
distribution  fee that is borne by Class B shares. Automatic conversion of Class
B shares  into Class  D shares  will  occur at  least once  each month  (on  the
"Conversion  Date") on the basis of the  relative net asset values of the shares
of the two classes on the Conversion  Date, without the imposition of any  sales
load,  fee or other charge. Conversion of Class  B shares to Class D shares will
not be deemed a purchase or sale of the shares for Federal income tax purposes.
    

   
    In addition, shares purchased through  reinvestment of dividends on Class  B
shares  also will convert  automatically to Class D  shares. The Conversion Date
for dividend  reinvestment shares  will be  calculated taking  into account  the
length  of time  the shares  underlying such  dividend reinvestment  shares were
outstanding. If at a Conversion Date the conversion of Class B shares to Class D
shares of the Fund  in a single account  will result in less  than $50 worth  of
Class  B shares being left in the account, all of the Class B shares of the Fund
held in the account on the Conversion  Date will be converted to Class D  shares
of the Fund.
    

   
    Share  certificates for Class B  shares of the Fund  to be converted must be
delivered to the Transfer Agent at least  one week prior to the Conversion  Date
applicable  to those shares. In the event  such certificates are not received by
the Transfer Agent at least one week  prior to the Conversion Date, the  related
Class  B shares will convert to Class  D shares on the next scheduled Conversion
Date after such certificates are delivered.
    

                                       26
<PAGE>
   
    In general, Class B shares of equity MLAM-advised mutual funds will  convert
approximately  eight years after initial purchase, and Class B shares of taxable
and tax-exempt fixed income MLAM-advised mutual funds will convert approximately
ten  years  after  initial  purchase.  If,  during  the  Conversion  Period,   a
shareholder  exchanges Class B  shares with an  eight-year Conversion Period for
Class B shares with a ten-year Conversion Period, or vice versa, the  Conversion
Period applicable to the Class B shares acquired in the exchange will apply, and
the  holding period  for the  shares exchanged will  be tacked  onto the holding
period for the shares acquired.
    

   
DISTRIBUTION PLANS
    
   
    The Fund has adopted  separate distribution plans for  Class B, Class C  and
Class  D shares pursuant to Rule 12b-1  under the Investment Company Act (each a
"Distribution Plan") with respect to the account maintenance and/or distribution
fees paid by the Fund to the Distributor with respect to such classes. The Class
B and Class C Distribution Plans provide for the payment of account  maintenance
fees  and distribution fees, and the Class  D Distribution Plan provides for the
payment of account maintenance fees.
    

   
    The Distribution Plans for Class B, Class C and Class D shares each  provide
that  the Fund pays the  Distributor an account maintenance  fee relating to the
shares of the  relevant class,  accrued daily and  paid monthly,  at the  annual
rates  of 0.25%, 0.25% and 0.10%, respectively,  of the average daily net assets
of the Fund attributable to shares of the relevant class in order to  compensate
the  Distributor and Merrill  Lynch (pursuant to  a sub-agreement) in connection
with account maintenance activities.
    

   
    The Distribution Plans for Class B and Class C shares each provide that  the
Fund  also pays the Distributor a distribution fee relating to the shares of the
relevant class, accrued daily and paid monthly, at the annual rate of 0.25%  and
0.35%, respectively, of the average daily net assets of the Fund attributable to
the  shares of  the relevant  class in order  to compensate  the Distributor and
Merrill Lynch  (pursuant  to  a sub-agreement)  for  providing  shareholder  and
distribution  services, and bearing certain distribution-related expenses of the
Fund, including payments to financial consultants for selling Class B and  Class
C  shares of the  Fund. The Distribution Plans  relating to Class  B and Class C
shares are designed to permit an investor to purchase Class B and Class C shares
through dealers without  the assessment of  an initial sales  charge and at  the
same  time  permit  the  dealer  to  compensate  its  financial  consultants  in
connection with the sale of the Class B and Class C shares. In this regard,  the
purpose  and function of the ongoing distribution fees and the CDSC are the same
as those of the  initial sales charge with  respect to the Class  A and Class  D
shares  of the Fund in that the deferred sales charges provide for the financing
of the distribution of the Fund's Class B and Class C shares.
    

   
    Prior to July 6, 1993, the Fund paid the Distributor an ongoing distribution
fee, accrued daily  and paid monthly,  at the  annual rate of  0.50% of  average
daily  net assets of  the Class B shares  of the Fund  under a distribution plan
previously adopted by the Fund (the "Prior Plan") to compensate the  Distributor
and  Merrill Lynch  for providing  account maintenance  and distribution-related
activities and services to  Class B shareholders. The  fee rate payable and  the
services  provided under the Prior Plan are  identical to the aggregate fee rate
payable and  the services  provided under  the Class  B Distribution  Plan,  the
difference  being that  the account  maintenance and  distribution services have
been unbundled. For the year ended July 31, 1994, the Fund paid the  Distributor
account    maintenance   fees    of   $209,390   and    distribution   fees   of
    

                                       27
<PAGE>
   
$209,391  pursuant to the Class  B Distribution Plan. The  Fund did not begin to
offer shares of Class C or Class  D publicly until the date of this  Prospectus.
Accordingly,  no payments  have been  made pursuant  to the  Class C  or Class D
Distribution Plans prior to the date of this Prospectus.
    

   
    The payments  under the  Distribution  Plan are  based  on a  percentage  of
average  daily net assets attributable to the shares regardless of the amount of
expenses incurred  and,  accordingly,  distribution-related  revenues  from  the
Distribution  Plans  may be  more  or less  than  distribution-related expenses.
Information with respect  to the distribution-related  revenues and expenses  is
presented  to  the Trustees  for their  consideration  in connection  with their
deliberations as to  the continuance  of the Class  B and  Class C  Distribution
Plans.  This information is presented annually as of December 31 of each year on
a "fully  allocated  accrual" basis  and  quarterly  on a  "direct  expense  and
revenue/cash"  basis. On the fully allocated  accrual basis, revenues consist of
the account maintenance  fees, distribution  fees, the CDSCs  and certain  other
related  revenues, and  expenses consist  of financial  consultant compensation,
branch office and regional operation  center selling and transaction  processing
expenses,   advertising,  sales  promotion  and  marketing  expenses,  corporate
overhead and interest  expense. On  the direct expense  and revenue/cash  basis,
revenues  consist of the  account maintenance fees,  distribution fees and CDSCs
and the expenses consist  of financial consultant  compensation. As of  December
31,  1993 the fully  allocated accrual expenses incurred  by the Distributor and
Merrill Lynch  exceeded fully  allocated  accrual revenues  for such  period  by
approximately  $1,554,000  (1.8% of  Class B  net  assets at  that date).  As of
December 31, 1993, direct cash expenses for the period since the commencement of
operations exceeded direct cash revenues by $218,631 (.26% of Class B net assets
at that date). As of  July 31, 1994, direct cash  revenues for the period  since
the  commencement of operations  exceeded direct cash  expenses by approximately
$26,222 (.03% of Class B net assets at that date).
    

   
    The Fund  has no  obligation  with respect  to distribution  and/or  account
maintenance-related  expenses incurred by  the Distributor and  Merrill Lynch in
connection with  the Class  B, Class  C  and Class  D shares,  and there  is  no
assurance  that the Trustees  of the Trust  will approve the  continuance of the
Distribution Plans from year to year.  However, the Distributor intends to  seek
annual   continuation  of  the  Distribution  Plans.  In  their  review  of  the
Distribution Plans,  the  Trustees will  be  asked to  take  into  consideration
expenses incurred in connection with the account maintenance and/or distribution
of  each  class of  shares separately.  The initial  sales charges,  the account
maintenance fee, the distribution fee and/or the CDSCs received with respect  to
one  class will not  be used to subsidize  the sale of  shares of another class.
Payments of  the  distribution  fee  on  Class  B  shares  will  terminate  upon
conversion  of  those Class  B shares  into Class  D shares  as set  forth under
"Deferred Sales Charge Alternatives -- Class B and Class C Shares --  Conversion
of Class B Shares to Class D Shares".
    

LIMITATIONS ON THE PAYMENT OF DEFERRED SALES CHARGES

   
    The  maximum sales  charge rule in  the Rules  of Fair Practice  of the NASD
imposes  a  limitation  on  certain  asset-based  sales  charges  such  as   the
distribution  fee and the CDSC borne by the  Class B and Class C shares, but not
the account maintenance fee. The maximum sales charge rule is applied separately
to each class. As applicable to the  Fund, the maximum sales charge rule  limits
the  aggregate of distribution fee payments and CDSCs payable by the Fund to (1)
6.25% of eligible gross  sales of Class  B shares and  Class C shares,  computed
separately  (defined to exclude shares issued pursuant to dividend reinvestments
and exchanges),  plus (2)  interest on  the unpaid  balance for  the  respective
class,  computed separately, at the prime rate plus 1% (the unpaid balance being
the maximum amount payable minus amounts received from
    

                                       28
<PAGE>
   
the payment of the distribution fee and the CDSC). In connection with the  Class
B  shares, the Distributor  has voluntarily agreed to  waive interest charges on
the unpaid balance in excess of 0.50% of eligible gross sales. Consequently, the
maximum amount  payable  to  the  Distributor (referred  to  as  the  "voluntary
maximum")  in connection  with the  Class B  shares is  6.75% of  eligible gross
sales. The Distributor retains the right to stop waiving the interest charges at
any time. To the  extent payments would exceed  the voluntary maximum, the  Fund
will  not make further payments of the  distribution fee with respect to Class B
shares, and any CDSCs will be paid  to the Fund rather than to the  Distributor;
however, the Fund will continue to make payments of the account maintenance fee.
In  certain circumstances the  amount payable pursuant  to the voluntary maximum
may exceed the  amount payable  under the  NASD formula.  In such  circumstances
payments  in excess  of the amount  payable under  the NASD formula  will not be
made.
    

                              REDEMPTION OF SHARES

   
    The Trust is required to redeem for cash all shares of the Fund upon receipt
of a written request in proper form. The redemption price is the net asset value
per share  next  determined  after  the initial  receipt  of  proper  notice  of
redemption. Except for any CDSC which may be applicable, there will be no charge
for redemption if the redemption request is sent directly to the Transfer Agent.
Shareholders  liquidating  their  holdings  will  receive  upon  redemption  all
dividends reinvested through the date of redemption. The value of shares at  the
time of redemption may be more or less than the shareholder's cost, depending on
the market value of the securities held by the Fund at such time.
    

REDEMPTION

   
    A shareholder wishing to redeem shares may do so without charge by tendering
the  shares  directly  to the  Transfer  Agent, Financial  Data  Services, Inc.,
Transfer Agency Mutual  Fund Operations, P.O.  Box 45289, Jacksonville,  Florida
32232-5289. Redemption requests delivered other than by mail should be delivered
to  Financial Data Services, Inc., Transfer  Agency Mutual Fund Operations, 4800
Deer Lake  Drive  East,  Jacksonville,  Florida  32246-6484.  Proper  notice  of
redemption  in  the case  of shares  deposited  with the  Transfer Agent  may be
accomplished by  a  written  letter  requesting  redemption.  Proper  notice  of
redemption  in the case of shares for which certificates have been issued may be
accomplished by a written letter as noted above accompanied by certificates  for
the  shares to be redeemed. Redemption requests should not be sent to the Trust.
The notice in  either event requires  the signature(s) of  all persons in  whose
name(s)  the shares are registered, signed  exactly as such name(s) appear(s) on
the Transfer Agent's register. The  signature(s) on the redemption request  must
be  guaranteed by an "eligible guarantor institution" as such term is defined in
Rule 17Ad-15  under  the  Securities  Exchange Act  of  1934,  as  amended,  the
existence  and validity of which  may be verified by  the Transfer Agent through
the use of industry  publications. Notarized signatures  are not sufficient.  In
certain  instances, the Transfer Agent may require additional documents such as,
but not  limited  to, trust  instruments,  death certificates,  appointments  as
executor   or  administrator,  or  certificates   of  corporate  authority.  For
shareholders redeeming directly with the Transfer Agent, payments will be mailed
within seven days of receipt of a proper notice of redemption.
    

   
    At various times the Trust may be requested to redeem Fund shares for  which
it  has not yet  received good payment  (e.g., cash, Federal  funds or certified
check drawn on a United States bank). The Trust may delay or cause to be delayed
the mailing of a redemption check until such time as it has assured itself  that
good payment has been collected for the purchase of such Fund shares, which will
not exceed 10 days.
    

                                       29
<PAGE>
REPURCHASE

   
    The  Trust also will  repurchase Fund shares  through a shareholder's listed
securities dealer.  The Trust  normally will  accept orders  to repurchase  Fund
shares  by wire or telephone  from dealers for their  customers at the net asset
value next computed after receipt of the order by the dealer, provided that  the
request  for repurchase is received by the dealer prior to the close of business
on the New York Stock Exchange on the day received, and such request is received
by the Fund from  such dealer not later  than 4:30 P.M., New  York time, on  the
same day. Dealers have the responsibility of submitting such repurchase requests
to  the Trust not later than  4:30 P.M., New York time,  in order to obtain that
day's closing price.
    

   
    The  foregoing   repurchase  arrangements   are  for   the  convenience   of
shareholders and do not involve a charge by the Trust (other than any applicable
CDSC).  Securities firms which  do not have selected  dealer agreements with the
Distributor, however, may  impose a  transaction charge on  the shareholder  for
transmitting the notice of repurchase to the Trust. Merrill Lynch may charge its
customers  a processing fee (presently $4.85)  to confirm a repurchase of shares
of such customers. Redemptions  directly through the  Fund's Transfer Agent  are
not  subject to the processing  fee. The Trust reserves  the right to reject any
order  for  repurchase,  which  right   of  rejection  might  adversely   affect
shareholders  seeking redemption  through the  repurchase procedure.  However, a
shareholder whose order for repurchase is rejected by the Trust may redeem  Fund
shares as set forth above.
    

   
REINSTATEMENT PRIVILEGE--CLASS A AND CLASS D SHARES
    
   
    Shareholders  who  have redeemed  their Class  A  or Class  D shares  have a
one-time privilege to reinstate their accounts by purchasing Class A or Class  D
shares,  as the  case may be,  of the  Fund at net  asset value  without a sales
charge up to  the dollar  amount redeemed.  The reinstatement  privilege may  be
exercised  by sending a notice of exercise along  with a check for the amount to
be reinstated to the Transfer  Agent within 30 days  after the date the  request
for  redemption  was accepted  by  the Transfer  Agent  or the  Distributor. The
reinstatement will be  made at  the net asset  value per  share next  determined
after  the notice of reinstatement  is received and cannot  exceed the amount of
the redemption proceeds. The reinstatement privilege is a one-time privilege and
may be exercised by the Class A or Class D shareholder only the first time  such
shareholder makes a redemption.
    

                              SHAREHOLDER SERVICES

   
    The  Trust  offers a  number of  shareholder  services and  investment plans
designed to facilitate investment in shares of the Fund. Full details as to each
of such services, copies of the  various plans described below and  instructions
as  to how to participate in the various services or plans, or to change options
with respect thereto  can be obtained  from the Trust  by calling the  telephone
number on the cover page hereof or from the Distributor or Merrill Lynch.
    

   
    INVESTMENT  ACCOUNT.   Each shareholder whose  account is  maintained at the
Transfer Agent has an Investment Account  and will receive statements, at  least
quarterly,  from the Transfer Agent. These  statements will serve as transaction
confirmations  for  automatic  investment  purchases  and  the  reinvestment  of
ordinary  income  dividends  and long-term  capital  gains  distributions. These
statements will also show any other activity in the account since the  preceding
statement. Shareholders will receive separate transaction confirmations for each
purchase  or sale transaction other than  automatic investment purchases and the
reinvestment  of  ordinary   income  dividends  and   long-term  capital   gains
distributions. A shareholder may
    

                                       30
<PAGE>
   
make additions to his Investment Account at any time by mailing a check directly
to  the Transfer  Agent. Shareholders may  also maintain  their accounts through
Merrill Lynch. Upon  the transfer  of shares out  of a  Merrill Lynch  brokerage
account,  an Investment Account  in the transferring  shareholder's name will be
opened at the Transfer Agent. Shareholders considering transferring their  Class
A  or Class D shares  from Merrill Lynch to  another brokerage firm or financial
institution should be aware that,  if the firm to which  the Class A or Class  D
shares  are to be  transferred will not take  delivery of shares  of the Fund, a
shareholder either  must  redeem the  Class  A or  Class  D shares  (paying  any
applicable  CDSC) so that the cash proceeds can be transferred to the account at
the new firm or such shareholder must continue to maintain an Investment Account
at the  Transfer  Agent  for those  Class  A  or Class  D  shares.  Shareholders
interested  in transferring their Class  B or Class C  shares from Merrill Lynch
and who do not wish to have an Investment Account maintained for such shares  at
the  Transfer Agent may request their new brokerage firm to maintain such shares
in an account registered in  the name of the brokerage  firm for the benefit  of
the shareholder.
    

   
    EXCHANGE  PRIVILEGE.  Shareholders of each class  of shares of the Fund have
an exchange privilege  with certain  other MLAM-advised mutual  funds. There  is
currently  no limitation on the  number of times a  shareholder may exercise the
exchange privilege. The exchange privilege may be modified or terminated at  any
time in accordance with the rules of the Commission.
    

   
    Under  the Merrill Lynch Select Pricing-SM- System, Class A shareholders may
exchange Class A shares of the Fund for Class A shares of a second  MLAM-advised
mutual  fund if the shareholder  holds any Class A shares  of the second fund in
his account in  which the exchange  is made at  the time of  the exchange or  is
otherwise eligible to purchase Class A shares of the second fund. If the Class A
shareholder wants to exchange Class A shares for shares of a second MLAM-advised
mutual fund, and the shareholder does not hold Class A shares of the second fund
in  his account  at the time  of the exchange  and is not  otherwise eligible to
acquire Class A shares of the second fund, the shareholder will receive Class  D
shares  of the second fund as a result  of the exchange. Class D shares also may
be exchanged for Class A shares of a second MLAM-advised mutual fund at any time
as long as, at the time of the exchange, the shareholder holds Class A shares of
the second fund in  the account in  which the exchange is  made or is  otherwise
eligible to purchase Class A shares of the second fund.
    

   
    Exchanges  of  Class A  and Class  D shares  are  made on  the basis  of the
relative net asset values per  Class A or Class  D share, respectively, plus  an
amount equal to the difference, if any, between the sales charge previously paid
on the Class A or Class D shares being exchanged and the sales charge payable at
the time of the exchange on the shares being acquired.
    

   
    Class  B, Class C and Class D shares will be exchangeable with shares of the
same class of other MLAM-advised mutual funds.
    

   
    Shares of the Fund which are subject  to a CDSC will be exchangeable on  the
basis of relative net asset value per share without the payment of any CDSC that
might  otherwise be due upon redemption of  the shares of the Fund. For purposes
of computing the  CDSC that  may be  payable upon  a disposition  of the  shares
acquired  in the exchange, the holding period for the previously owned shares of
the Fund is "tacked" to the holding  period of the newly acquired shares of  the
other Fund.
    

   
    Class  A, Class B, Class C and Class  D shares also will be exchangeable for
shares of certain  MLAM-advised money  market funds  specifically designated  as
available  for exchange  by holders  of Class  A, Class  B, Class  C or  Class D
shares. The period of time that Class A, Class B, Class C or Class D shares  are
held in a
    

                                       31
<PAGE>
   
money  market fund, however,  will not count toward  satisfaction of the holding
period requirement for  reduction of any  CDSC imposed on  such shares, if  any,
and,  with  respect to  Class B  shares, toward  satisfaction of  the Conversion
Period.
    

   
    Class B  shareholders of  the Fund  exercising the  exchange privilege  will
continue  to be subject to  the Fund's CDSC schedule  if such schedule is higher
than the CDSC schedule relating to the new Class B shares. In addition, Class  B
shares  of  the Fund  acquired through  use  of the  exchange privilege  will be
subject to the Fund's  CDSC schedule if  such schedule is  higher than the  CDSC
schedule  relating to the  Class B shares  of the MLAM-advised  mutual fund from
which the exchange has been made.
    

   
    Exercise of the exchange privilege is  treated as a sale for Federal  income
tax  purposes. For  further information,  see "Shareholder  Services -- Exchange
Privilege" in the Statement of Additional Information.
    

   
    The Fund's exchange privilege is modified with respect to purchases of Class
A and  Class  D shares  under  the Merrill  Lynch  Mutual Fund  Adviser  ("MFA")
program.  First, the initial allocation of assets is made under the MFA program.
Then, any subsequent exchange under the MFA program of Class A or Class D shares
of a MLAM-advised mutual fund for Class A or Class D shares of the Fund will  be
made  solely on the basis  of the relative net asset  values of the shares being
exchanged. Therefore, there will not be a charge for any difference between  the
sales charge previously paid on the shares of the other MLAM-advised mutual fund
and  the sales charge  payable on the shares  of the Fund  being acquired in the
exchange under the MFA program.
    

   
    AUTOMATIC REINVESTMENT OF  DIVIDENDS AND CAPITAL  GAINS DISTRIBUTIONS.   All
dividends  and capital gains distributions  are reinvested automatically in full
and fractional shares  of the Fund,  without a  sales charge, at  the net  asset
value  per share at the  close of business on the  monthly payment date for such
dividends  and  distributions.  A  shareholder  may  at  any  time,  by  written
notification  or by telephone  (1-800-MER-FUND) to the  Transfer Agent, elect to
have subsequent dividends or both dividends and capital gains distributions paid
in cash, rather than reinvested, in which event payment will be mailed  monthly.
Cash  payments can also be directly deposited to the shareholder's bank account.
No CDSC will  be imposed upon  redemption of shares  issued as a  result of  the
automatic reinvestment of dividends or capital gains distributions.
    

   
    SYSTEMATIC  WITHDRAWAL PLANS.  A Class A or Class D shareholder may elect to
receive systematic  withdrawal  payments  from his  Investment  Account  through
automatic payment by check or through automatic payment by direct deposit to his
bank  account on  either a  monthly or  quarterly basis.  A Class  A or  Class D
shareholder whose shares are held within a CMA-R- or CBA-R- Account may elect to
have shares redeemed on  a monthly, bimonthly,  quarterly, semiannual or  annual
basis through the Systematic Redemption Program, subject to certain conditions.
    

   
    AUTOMATIC  INVESTMENT PLANS.   Regular additions  of both Class  A, Class B,
Class C and Class D  shares may be made to  an investor's Investment Account  by
prearranged  charges of  $50 or  more to  his regular  bank account.  The Fund's
Automatic Investment Program is not  available to shareholders whose shares  are
held  in a  brokerage account with  Merrill Lynch.  Alternatively, investors who
maintain CMA-R- accounts may  arrange to have periodic  investments made in  the
Fund  in their CMA-R- account or in  certain related accounts in amounts of $100
or more through the CMA-R- Automated Investment Program.
    

                                       32
<PAGE>
                             PORTFOLIO TRANSACTIONS

    The Trust has no obligation to deal  with any dealer or group of dealers  in
the  execution of  transactions in portfolio  securities of  the Fund. Municipal
Bonds and other securities in which the Fund invests are traded primarily in the
over-the-counter market.  Where  possible, the  Trust  deals directly  with  the
dealers   who  make  a  market  in  the  securities  involved  except  in  those
circumstances where better prices and  execution are available elsewhere. It  is
the  policy of the Trust to obtain  the best net results in conducting portfolio
transactions for the Fund, taking into account such factors as price  (including
the applicable dealer spread), the size, type and difficulty of the transactions
involved, the firm's general execution and operations facilities, and the firm's
risk  in positioning the  securities involved and  the provision of supplemental
investment research  by  the  firm.  While  reasonably  competitive  spreads  or
commissions  are  sought, the  Fund will  not necessarily  be paying  the lowest
spread or commission available. The sale of shares of the Fund may be taken into
consideration as a  factor in  the selection of  brokers or  dealers to  execute
portfolio  transactions  for  the Fund.  The  portfolio securities  of  the Fund
generally are traded on a net basis and normally do not involve either brokerage
commissions or transfer taxes. The cost of portfolio securities transactions  of
the  Fund primarily  consists of dealer  or underwriter spreads.  Under the 1940
Act, persons affiliated with the Trust, including Merrill Lynch, are  prohibited
from  dealing  with  the  Trust as  a  principal  in the  purchase  and  sale of
securities unless such trading is permitted by an exemptive order issued by  the
Commission. The Trust has obtained an exemptive order permitting it to engage in
certain  principal  transactions  with  Merrill  Lynch  involving  high  quality
short-term municipal bonds subject to certain conditions. In addition, the Trust
may not purchase securities, including Municipal Bonds, for the Fund during  the
existence  of  any underwriting  syndicate of  which Merrill  Lynch is  a member
except pursuant to procedures approved by the Trustees of the Trust which comply
with rules adopted by the Commission. Affiliated persons of the Trust may  serve
as  its broker  in over-the-counter  transactions conducted  for the  Fund on an
agency basis only.

                            DISTRIBUTIONS AND TAXES

DISTRIBUTIONS

   
    The net  investment  income of  the  Fund  is declared  as  dividends  daily
following  the normal close of trading on the New York Stock Exchange (currently
4:00 P.M.) prior to the  determination of the net asset  value on that day.  The
net  investment income  of the Fund  for dividend purposes  consists of interest
earned on portfolio securities, less expenses,  in each case computed since  the
most  recent  determination  of  the  net asset  value.  Expenses  of  the Fund,
including the management fees and the account maintenance and distribution fees,
are accrued daily.  Dividends of net  investment income are  declared daily  and
reinvested  monthly in the form of additional  full and fractional shares of the
Fund at net asset value as of the close of business on the "payment date" unless
the shareholder elects  to receive such  dividends in cash.  Shares will  accrue
dividends  as long  as they  are issued and  outstanding. Shares  are issued and
outstanding from the settlement  date of a  purchase order to  the day prior  to
settlement date of a redemption order.
    

    All  net realized long-or short-term capital gains, if any, are declared and
distributed  to  the  Fund's  shareholders  at  least  annually.  Capital  gains
distributions  will be reinvested automatically in shares unless the shareholder
elects to receive such distributions in cash.

   
    The per share dividends  and distributions on each  class of shares will  be
reduced as a result of any account maintenance, distribution and transfer agency
fees applicable to that class.
    

                                       33
<PAGE>
    See  "Shareholder  Services"  for  information as  to  how  to  elect either
dividend reinvestment or cash payments. Portions of dividends and  distributions
which  are taxable to shareholders as described  below are subject to income tax
whether they are reinvested in shares of the Fund or received in cash.

TAXES

   
    The Trust  intends to  continue to  qualify  the Fund  for the  special  tax
treatment  afforded regulated  investment companies ("RICs")  under the Internal
Revenue Code of 1986, as amended (the "Code"). If the Fund so qualifies, in  any
taxable  year in which it distributes at least 90% of its taxable net income and
90%  of  its  tax-exempt  net  income  (see  below),  the  Fund  (but  not   its
shareholders)  will not be subject  to Federal income tax  to the extent that it
distributes its net investment income and net realized capital gains. The  Trust
intends to cause the Fund to distribute substantially all of such income.
    

   
    To the extent that the dividends distributed to the Fund's Class A, Class B,
Class  C and Class D shareholders (together the "shareholders") are derived from
interest income  exempt from  Federal  tax under  Code  Section 103(a)  and  are
properly  designated as "exempt-interest"  dividends by the  Trust, they will be
excludable from a shareholder's  gross income for  Federal income tax  purposes.
Exempt-interest  dividends are included, however, in determining the portion, if
any, of a  person's social  security benefits and  railroad retirement  benefits
subject  to Federal income taxes. The  portion of such exempt-interest dividends
paid from interest received by the  Fund from Arizona Municipal Bonds also  will
be exempt from Arizona personal and corporate income taxes. Shareholders subject
to  income taxation by states other than  Arizona will realize a lower after-tax
rate of return than Arizona shareholders since the dividends distributed by  the
Fund generally will not be exempt to any significant degree from income taxation
by  such other  states. The  Trust will inform  shareholders annually  as to the
portion of the Fund's distributions which constitutes exempt-interest  dividends
and  the portion  which is  exempt from  the Arizona  income taxes.  Interest on
indebtedness incurred  or continued  to purchase  or carry  Fund shares  is  not
deductible  for Federal income tax purposes and, to the extent of investments by
the Fund in Arizona  Municipal Bonds, is not  deductible for Arizona income  tax
purposes.  Persons  who  may be  "substantial  users" (or  "related  persons" of
substantial users) of  facilities financed  by industrial  development bonds  or
private activity bonds held by the Fund should consult their tax advisers before
purchasing Fund shares.
    

   
    To the extent that the Fund's distributions are derived from interest on its
taxable  investments or from an excess of  net short-term capital gains over net
long-term capital losses ("ordinary  income dividends"), such distributions  are
considered  ordinary income  for Federal and  Arizona income  tax purposes. Such
distributions  are  not  eligible  for  the  dividends  received  deduction  for
corporations.  Distributions, if  any, of net  long-term capital  gains from the
sale of securities or from certain transactions in futures or options  ("capital
gain  dividends") are taxable as long-term  capital gains for Federal income tax
purposes, regardless of the length of time the shareholder has owned Fund shares
and, for Arizona  income tax  purposes are treated  as capital  gains which  are
taxed  at ordinary  income tax  rates. Under  the Revenue  Reconciliation Act of
1993, all  or a  portion of  the  Fund's gain  from the  sale or  redemption  of
tax-exempt  obligations  purchased  at  a market  discount  will  be  treated as
ordinary income rather than capital gain.  This rule may increase the amount  of
ordinary  income dividends received by  shareholders. Distributions in excess of
the Fund's earnings and profits  will first reduce the  adjusted tax basis of  a
holder's  shares and,  after such  adjusted tax basis  is reduced  to zero, will
constitute capital  gains to  such holder  (assuming the  shares are  held as  a
capital asset). Any loss upon the sale or exchange of shares held for six months
or  less will be treated as long-term capital  loss to the extent of any capital
gain dividends  received  by  the  shareholder.  In  addition,  such  loss  will
    

                                       34
<PAGE>
be  disallowed to  the extent of  any exempt-interest dividends  received by the
shareholder. If the Fund pays  a dividend in January  which was declared in  the
previous  October, November or December to shareholders of record on a specified
date in one of such months, then such dividend will be treated for tax  purposes
as being paid by the Fund and received by its shareholders on December 31 of the
year in which such dividend was declared.

   
    The   Code  subjects  interest  received  on  certain  otherwise  tax-exempt
securities to an alternative minimum tax. The alternative minimum tax applies to
interest received  on "private  activity  bonds" issued  after August  7,  1986.
Private  activity  bonds  are bonds  which,  although tax-exempt,  are  used for
purposes other than those  generally performed by  governmental units and  which
benefit  non-governmental entities (e.g., bonds  used for industrial development
or housing purposes). Income received on such bonds is classified as an item  of
"tax  preference",  which  could  subject  investors  in  such  bonds, including
shareholders of the Fund, to an alternative minimum tax. The Fund will  purchase
such  "private activity bonds" and the  Trust will report to shareholders within
60 days after its taxable year-end the portion of the Fund's dividends  declared
during  the year  which constitutes  an item  of tax  preference for alternative
minimum tax purposes. The Code further provides that corporations are subject to
an alternative  minimum  tax based,  in  part, on  certain  differences  between
taxable  income  as adjusted  for other  tax  preferences and  the corporation's
"adjusted current earnings" (which more closely reflect a corporation's economic
income). Because an exempt-interest dividend paid  by the Fund will be  included
in  adjusted current earnings, a corporate shareholder therefore may be required
to pay alternative minimum tax on exempt-interest dividends paid by the Fund.
    

    The Revenue Reconciliation Act of 1993  has added new marginal tax  brackets
of  36% and 39.6% for  individuals and has created  a graduated structure of 26%
and 28%  for the  alternative minimum  tax applicable  to individual  taxpayers.
These  rate increases may affect an  individual investor's after-tax return from
an investment in the Fund as  compared with such investor's return from  taxable
investments.

   
    No gain or loss will be recognized by Class B shareholders on the conversion
of  their Class B shares into Class D shares. A shareholder's basis in the Class
D shares acquired will be  the same as such shareholder's  basis in the Class  B
shares  converted, and the  holding period of  the acquired Class  D shares will
include the holding period for the converted Class B shares.
    

   
    If a shareholder exercises an exchange privilege within 90 days of acquiring
the shares, then the loss the shareholder can recognize on the exchange will  be
reduced  (or the gain increased) to the extent the sales charge paid to the Fund
reduces any sales charge such shareholder  would have owed upon purchase of  the
new  shares in the absence of the exchange privilege. Instead, such sales charge
will be treated as an amount paid for the new shares.
    

   
    A loss  realized on  a  sale or  exchange  of shares  of  the Fund  will  be
disallowed  if other  Fund shares  are acquired  (whether through  the automatic
reinvestment of dividends or otherwise) within a 61-day period beginning 30 days
before and ending 30  days after the  date that the shares  are disposed of.  In
such  a case, the basis  of the shares acquired will  be adjusted to reflect the
disallowed loss.
    

   
    Under certain provisions of the Code, some shareholders may be subject to  a
31%  withholding tax  on certain ordinary  income dividends and  on capital gain
dividends   and   redemption   payments   ("backup   withholding").   Generally,
shareholders  subject to backup withholding will  be those for whom no certified
    

                                       35
<PAGE>
   
taxpayer identification number is on file with the Trust or who, to the  Trust's
knowledge,  have furnished an incorrect number. When establishing an account, an
investor must certify under penalty of  perjury that such number is correct  and
that such investor is not otherwise subject to backup withholding.
    

    The  Code provides  that every  person required  to file  a tax  return must
include for information purposes  on such return  the amount of  exempt-interest
dividends  received from  all sources  (including the  Fund) during  the taxable
year.

    The foregoing  is  a  general  and abbreviated  summary  of  the  applicable
provisions  of the Code, Treasury regulations  and Arizona tax laws presently in
effect. For the complete provisions, reference  should be made to the  pertinent
Code   sections,  the  Treasury  regulations   promulgated  thereunder  and  the
applicable Arizona income tax  laws. The Code and  the Treasury regulations,  as
well  as the Arizona  income tax laws,  are subject to  change by legislative or
administrative action either prospectively or retroactively.

    Shareholders  are  urged  to  consult  their  tax  advisers  regarding   the
availability  of  any exemptions  from state  or local  taxes and  with specific
questions as to Federal, foreign, state or local taxes.

                                PERFORMANCE DATA

   
    From time to time the Fund may  include its average annual total return  and
yield   and  tax  equivalent  yield  for   various  specified  time  periods  in
advertisements or information furnished to present or prospective  shareholders.
Average  annual  total  return,  yield and  tax  equivalent  yield  are computed
separately for Class A, Class B, Class  C and Class D shares in accordance  with
formulas specified by the Commission.
    

   
    Average  annual total  return quotations for  the specified  periods will be
computed by finding the average annual compounded rates of return (based on  net
investment  income and  any realized and  unrealized capital gains  or losses on
portfolio investments over such  periods) that would  equate the initial  amount
invested  to the redeemable value of such  investment at the end of each period.
Average annual  total  return  will  be  computed  assuming  all  dividends  and
distributions  are reinvested and  taking into account  all applicable recurring
and nonrecurring expenses,  including any  CDSC that  would be  applicable to  a
complete redemption of the investment at the end of the specified period such as
in  the case of Class B  and Class C shares and  the maximum sales charge in the
case of Class D shares. Dividends paid  by the Fund with respect to all  shares,
to  the extent any dividends are paid, will  be calculated in the same manner at
the same time  on the  same day  and will  be in  the same  amount, except  that
account  maintenance fees and distribution  charges and any incremental transfer
agency costs relating to each class of shares will be borne exclusively by  that
Class.  The Fund will include performance data  for all classes of shares of the
Fund in any advertisement or information including performance data of the Fund.
    

    The Fund also may quote total return and aggregate total return  performance
data   for  various  specified  time  periods.  Such  data  will  be  calculated
substantially as described above, except that (1) the rates of return calculated
will not  be average  annual rates,  but rather,  actual annual,  annualized  or
aggregate  rates of return and (2) the maximum applicable sales charges will not
be included with respect to annual  or annualized rates of return  calculations.
Aside  from  the impact  on the  performance data  calculations of  including or
excluding the  maximum applicable  sales charges,  actual annual  or  annualized
total  return data generally will be lower than average annual total return data
since the average annual  rates of return  reflect compounding; aggregate  total
return data generally will be higher than average annual total return data since
the  aggregate rates of return reflect compounding over a longer period of time.
In advertisements distributed to investors

                                       36
<PAGE>
   
whose purchases are subject to waiver of the CDSC in the case of Class B  shares
or  reduced  sales charges  in  the case  of  Class A  and  Class D  shares, the
performance data may take into account  the reduced, and not the maximum,  sales
charge  or may not take into account  the CDSC and therefore may reflect greater
total return since, due to  the reduced sales charges or  waiver of the CDSC,  a
lower amount of expenses is deducted. See "Purchase of Shares". The Fund's total
return may be expressed either as a percentage or as a dollar amount in order to
illustrate  such total return on a hypothetical $1,000 investment in the Fund at
the beginning of each specified period.
    

   
    Yield quotations will be computed based  on a 30-day period by dividing  (a)
the  net income based on the yield of  each security earned during the period by
(b) the average daily number of  shares outstanding during the period that  were
entitled to receive dividends multiplied by the maximum offering price per share
on  the last day of the period. Tax equivalent yield quotations will be computed
by dividing (a) the part of the Fund's yield that is tax-exempt by (b) one minus
a stated tax rate and (c) adding the result to that part, if any, of the  Fund's
yield  that is not  tax-exempt. The yield  for the 30-day  period ended July 31,
1994 was 5.15%  for Class  A shares and  4.86% for  Class B shares  and the  tax
equivalent yield for the same period (based on a Federal income tax rate of 28%)
was  7.15% for Class  A shares and 6.75%  for Class B  shares. The yield without
voluntary reimbursement for the 30 day period would have been 5.01% for Class  A
Shares  and 4.71% for  Class B Shares with  a tax equivalent  yield of 6.96% for
Class A Shares and 6.54% for Class B Shares.
    

    Total  return  and  yield  figures  are  based  on  the  Fund's   historical
performance  and are  not intended  to indicate  future performance.  The Fund's
total return and yield will vary depending on market conditions, the  securities
comprising the Fund's portfolio, the Fund's operating expenses and the amount of
realized  and unrealized net capital gain or losses during the period. The value
of an  investment in  the Fund  will fluctuate  and an  investor's shares,  when
redeemed, may be worth more or less than their original cost.

    On  occasion,  the  Fund may  compare  its performance  to  performance data
published by Lipper  Analytical Services, Inc.,  Morningstar Publications,  Inc.
("Morningstar"),  and CDA  Investment Technology, Inc.  or to  date contained in
publications such as Money  Magazine, U.S. News &  World Report, Business  Week,
Forbes  Magazine and Fortune Magazine.  From time to time,  the Fund may include
the Fund's Morningstar  risk-adjusted performance ratings  in advertisements  or
supplemental  sales  literature.  As with  other  performance  data, performance
comparisons should  not  be considered  representative  of the  Fund's  relative
performance for any future period.

                             ADDITIONAL INFORMATION

DETERMINATION OF NET ASSET VALUE

   
    The  net asset value of the shares of  all classes of the Fund is determined
once daily as of 4:15 P.M., New York time, on each day during which the New York
Stock Exchange is open for trading. The net asset value per share is computed by
dividing the sum of the value of the  securities held by the Fund plus any  cash
or  other assets minus all liabilities by the total number of shares outstanding
at such time, rounded to the nearest cent. Expenses, including the fees  payable
to the Manager and the Distributor, are accrued daily.
    

   
    The per share net asset value of the Class A shares generally will be higher
than  the per share net  asset value of shares  of the other classes, reflecting
the daily expense accruals of the account maintenance, distributions and  higher
transfer  agency fees applicable with respect to  Class B and Class C shares and
the
    

                                       37
<PAGE>
   
daily expense accruals of the  account maintenance fees applicable with  respect
to  Class D shares;  moreover, the per share  net asset value  of Class D shares
generally will be higher than the per share net asset value of Class B and Class
C shares, reflecting the daily expense  accruals of the distribution and  higher
transfer  agency fees applicable with respect to  Class B and Class C shares. It
is expected, however, that  the per share  net asset value  of the classes  will
tend  to converge  immediately after the  payment of  dividends or distributions
which  will  differ  by  approximately   the  amount  of  the  expense   accrual
differencials between the classes.
    

ORGANIZATION OF THE TRUST

   
    The  Trust is an  unincorporated business trust organized  on August 2, 1985
under the laws of Massachusetts. On October 1, 1987, the Trust changed its  name
from  "Merrill  Lynch Multi-State  Tax Exempt  Series  Trust" to  "Merrill Lynch
Multi-State Municipal Bond  Series Trust"  and on  December 22,  1987 the  Trust
changed  its name  to "Merrill  Lynch Multi-State  Municipal Series  Trust". The
Trust is an open-end management investment company comprised of separate  series
("Series"),  each of which  is a separate portfolio  offering shares to selected
groups of purchasers. Each of the Series is to be managed independently in order
to provide to shareholders who are residents  of the state to which such  Series
relates  as high a level  of income exempt from  Federal, state and local income
taxes as  is consistent  with prudent  investment management.  The Trustees  are
authorized  to create an  unlimited number of  Series and, with  respect to each
Series, to issue an unlimited number of full and fractional shares of beneficial
interest of $.10  par value of  different classes. Shareholder  approval is  not
required  for the authorization of  additional Series or classes  of a Series of
the Trust. At the date  of this Prospectus, the shares  of the Fund are  divided
into Class A, Class B, Class C and Class D shares. Class A, Class B, Class C and
Class  D  shares represent  interests in  the same  assets of  the Fund  and are
identical in all respects except that Class  B, Class C and Class D shares  bear
certain expenses related to the account maintenance associated with such shares,
and Class B and Class C shares bear certain expenses related to the distribution
of  such shares. Each class has exclusive  voting rights with respect to matters
relating to account maintenance and distribution expenditures as applicable. See
"Purchase of  Shares". The  Trust  has received  an  order from  the  Commission
permitting  the  issuance and  sale  of multiple  classes  of common  stock. The
Trustees of the Trust may classify and  reclassify the shares of the Trust  into
additional classes at a future date.
    

    Shareholders  are entitled to one vote for each full share and to fractional
votes for fractional  shares held  in the election  of Trustees  (to the  extent
hereinafter   provided)  and  on   other  matters  submitted   to  the  vote  of
shareholders. All shares of the Trust have equal voting rights, except that only
shares of the respective Series are entitled to vote on matters concerning  only
that  Series and,  as noted  above, only Class  B shares  of a  Series will have
exclusive voting  rights  with  respect  to  matters  relating  to  the  account
maintenance  and distribution expenses  being borne solely  by such class. There
normally will be no meeting of shareholders for the purpose of electing Trustees
unless and until  such time  as less  than a  majority of  the Trustees  holding
office  have been elected  by shareholders, at  which time the  Trustees then in
office  will  call  a  shareholders'  meeting  for  the  election  of  Trustees.
Shareholders  may, in  accordance with  the terms  of the  Declaration of Trust,
cause a meeting  of shareholders to  be held for  the purpose of  voting on  the
removal  of Trustees. Also, the Trust will be required to call a special meeting
of shareholders of a Series in accordance with the requirements of the 1940  Act
to  seek approval  of new  management and  advisory arrangements,  of a material
increase in  distribution fees  or  of a  change  in the  fundamental  policies,
objectives  or restrictions of a Series. Except as set forth above, the Trustees
shall continue to hold  office and appoint successor  Trustees. Each issued  and
outstanding   share  is  entitled  to   participate  equally  in  dividends  and
distributions declared by the

                                       38
<PAGE>
   
respective Series  and  in  net  assets  of  such  Series  upon  liquidation  or
dissolution remaining after satisfaction of outstanding liabilities except that,
as  noted above, the Class B, Class C and Class D shares bear certain additional
expenses. The obligations and liabilities of a particular Series are  restricted
to  the assets  of that  Series and  do not  extend to  the assets  of the Trust
generally. The  shares of  each  Series, when  issued,  will be  fully-paid  and
non-assessable by the Trust.
    

SHAREHOLDER REPORTS

    Only   one  copy  of   each  shareholder  report   and  certain  shareholder
communications will be mailed to  each identified shareholder regardless of  the
number  of accounts  such shareholder  has. If  a shareholder  wishes to receive
separate copies of each report and  communication for each of the  shareholder's
related accounts the shareholder should notify in writing:

   
       Financial Data Services, Inc.
       Attn: TAMFO
       P.O. Box 45289
       Jacksonville, FL 32232-5289
    

   
The  written notification  should include  the shareholder's  name, address, tax
identification number and  Merrill Lynch,  Pierce, Fenner  & Smith  Incorporated
and/or  mutual fund  account numbers. If  you have any  questions regarding this
matter please call  your Merrill  Lynch financial consultant  or Financial  Data
Services, Inc. at 800-637-3863.
    

SHAREHOLDER INQUIRIES

    Shareholder  inquiries  may be  addressed  to the  Trust  at the  address or
telephone number set forth on the cover page of this Prospectus.

    The Declaration of  Trust establishing the  Trust, dated August  2, 1985,  a
copy  of which together  with all amendments thereto  (the "Declaration"), is on
file in  the office  of  the Secretary  of  the Commonwealth  of  Massachusetts,
provides that the name "Merrill Lynch Multi-State Municipal Series Trust" refers
to  the  Trustees under  the Declaration  collectively as  Trustees, but  not as
individuals or personally;  and no  Trustee, shareholder,  officer, employee  or
agent  of the Trust shall be held to any personal liability, nor shall resort be
had to their private property for the satisfaction of any obligation or claim of
the Trust but the "Trust Property" only shall be liable.

                                       39
<PAGE>
                 (This page has been left blank intentionally.)

                                       40
<PAGE>
   
    MERRILL LYNCH ARIZONA MUNICIPAL BOND FUND - AUTHORIZATION FORM (PART 1)
    
- --------------------------------------------------------------------------------
1.  SHARE PURCHASE APPLICATION

    I, being of legal age, wish to purchase: (choose one)

/ / Class A shares  / / Class B shares  / / Class C shares  / / Class D shares

   
of Merrill Lynch Arizona Municipal Bond Fund and establish an Investment Account
as  described in the Prospectus. In the event that I am not eligible to purchase
Class A shares, I understand that Class D shares will be purchased.
    

    Basis for establishing an Investment Account:

        A.  I enclose a check for $ . payable to Financial Data Services,  Inc.,
    as  an initial investment (minimum $1,000).  I understand that this purchase
    will be executed  at the  applicable offering  price next  to be  determined
    after this Application is received by you.

        B.   I already  own shares of  the following Merrill  Lynch mutual funds
    that would  qualify  for  the  right of  accumulation  as  outlined  in  the
    Statement  of Additional Information: (Please list all funds. Use a separate
    sheet of paper if necessary.)

<TABLE>
<S>                                                         <C>
1. ......................................................... 4. .........................................................

2. ......................................................... 5. .........................................................

3. ......................................................... 6. .........................................................
</TABLE>

<TABLE>
<S>                                                         <C>
Name ...................................................................................................................
     First Name        Initial        Last Name

Name of Co-Owner (if any) ..............................................................................................
                          First Name    Initial    Last Name
</TABLE>

<TABLE>
<S>                                                           <C>
Address ....................................................

 ...........................................................  Name and Address of Employer ...............................
                                                             (Zip
Code)

Occupation .................................................  ............................................................

 ...........................................................  ............................................................
                     Signature of Owner                                      Signature of Co-Owner (if any)

(in the case of co-owner, a joint tenancy with right of survivorship will be presumed unless otherwise specified.)
</TABLE>

- --------------------------------------------------------------------------------
2.  DIVIDEND AND CAPITAL GAIN DISTRIBUTION OPTIONS

<TABLE>
<S>        <C>        <C>                        <C>        <C>        <C>
           ORDINARY INCOME DIVIDENDS                         LONG-TERM CAPITAL GAINS
Select        / /     Reinvest                   Select        / /     Reinvest
One:          / /     Cash                       One:          / /     Cash
</TABLE>

If no  election is  made,  dividends and  capital  gains will  be  automatically
reinvested at net asset value without a sales charge.

IF CASH, SPECIFY HOW YOU WOULD LIKE YOUR DISTRIBUTIONS PAID TO YOU:    / / Check
or  / / Direct Deposit to bank account

IF DIRECT DEPOSIT TO BANK ACCOUNT IS SELECTED, PLEASE COMPLETE BELOW:

   
I  hereby authorize payment of dividend and capital gain distributions by direct
deposit to my bank account and, if necessary, debit entries and adjustments  for
any  credit  entries made  to my  account in  accordance with  the terms  I have
selected on the Merrill Lynch Arizona Municipal Bond Fund Authorization Form.
    

SPECIFY TYPE OF ACCOUNT (CHECK ONE)    / / checking    / / savings

Name on your account ...........................................................

Bank Name ......................................................................

Bank Number ........................     Account Number ........................

Bank address ...................................................................

I AGREE THAT THIS  AUTHORIZATION WILL REMAIN IN  EFFECT UNTIL I PROVIDE  WRITTEN
NOTIFICATION  TO  FINANCIAL DATA  SERVICES,  INC. AMENDING  OR  TERMINATING THIS
SERVICE.

Signature of Depositor .........................................................

Signature of Depositor ........................     Date .......................
(if joint account, both must sign)

NOTE: IF DIRECT DEPOSIT TO BANK ACCOUNT IS SELECTED, YOUR BLANK, UNSIGNED  CHECK
MARKED  "VOID" OR A DEPOSIT SLIP FROM YOUR SAVINGS ACCOUNT SHOULD ACCOMPANY THIS
APPLICATION.

                                       41
<PAGE>
   
   MERRILL LYNCH ARIZONA MUNICIPAL BOND FUND - AUTHORIZATION FORM (PART 1) -
                                  (CONTINUED)
    
- --------------------------------------------------------------------------------
3.  SOCIAL SECURITY NUMBER OR TAXPAYER IDENTIFICATION NUMBER
          ------------------------------------------------------------
            Social Security Number or Taxpayer Identification Number

    Under penalty of perjury, I certify (1)  that the number set forth above  is
my correct Social Security Number or Taxpayer Identification Number and (2) that
I  am not subject  to backup withholding  (as discussed in  the Prospectus under
"Distributions and Taxes -- Taxes") either because I have not been notified that
I am  subject thereto  as  a result  of  a failure  to  report all  interest  or
dividends,  or the Internal Revenue Service ("IRS") has notified me that I am no
longer subject thereto.

    INSTRUCTION: YOU MUST STRIKE OUT THE LANGUAGE IN (2) ABOVE IF YOU HAVE  BEEN
NOTIFIED THAT YOU ARE SUBJECT TO BACKUP WITHHOLDING DUE TO UNDERREPORTING AND IF
YOU  HAVE NOT RECEIVED  A NOTICE FROM  THE IRS THAT  BACKUP WITHHOLDING HAS BEEN
TERMINATED. THE UNDERSIGNED AUTHORIZES THE  FURNISHING OF THIS CERTIFICATION  TO
OTHER MERRILL LYNCH SPONSORED MUTUAL FUNDS.

<TABLE>
<S>                                                         <C>
 ........................................................... ............................................................
                     Signature of Owner                                    Signature of Co-Owner (if any)
</TABLE>

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

4.  LETTER OF INTENTION -- CLASS A AND CLASS D SHARES ONLY (See terms and
conditions in the Statement of Additional Information)

Dear Sir/Madam:
 ..................................... , 19 ....................................
                                                      Date of initial purchase

   
    Although I am not obligated to do so, I intend to purchase shares of Merrill
Lynch  Arizona  Municipal Bond  Fund  or any  other  investment company  with an
initial sales charge  or deferred  sales charge  for which  Merrill Lynch  Funds
Distributor,  Inc. acts as distributor over  the next 13-month period which will
equal or exceed:
    

/ / $25,000    / / $50,000    / / $100,000    / / $250,000    / / $1,000,000

   
    Each purchase will be made at the then reduced offering price applicable  to
the  amount checked above,  as described in the  Merrill Lynch Arizona Municipal
Bond Fund Prospectus.
    

   
    I agree to the  terms and conditions  of the Letter  of Intention. I  hereby
irrevocably  constitute and  appoint Merrill  Lynch Funds  Distributor, Inc., my
attorney, with full power  of substitution, to surrender  for redemption any  or
all shares of Merrill Lynch Arizona Municipal Bond Fund held as security.
    

<TABLE>
<S>                                                         <C>
By.......................................................... ............................................................
                     Signature of Owner                                        Signature of Co-Owner
                                                                   (if registered in joint names, both must sign)
</TABLE>

    In  making  purchases  under  this letter,  the  following  are  the related
accounts on which reduced offering prices are to apply:

<TABLE>
<S>                                                         <C>
(1) Name.................................................... (2) Name....................................................

Account Number.............................................. Account Number..............................................
</TABLE>

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

5.  FOR DEALER ONLY

   
<TABLE>
<S>                                                           <C>
Branch Office, Address, Stamp                                 We hereby authorize Merrill Lynch Funds Distributor, Inc. to
                                                              act as our agent in connection with transactions under  this
                                                              authorization  form and  agree to notify  the Distributor of
                                                              any purchases made under a Letter of Intention or Systematic
                                                              Withdrawal Plan. We  guarantee the shareholder's  signature.
This form, when completed, should be mailed to:               ............................................................
    Merrill Lynch Arizona Municipal Bond Fund                 Dealer Name and Address
    c/o Financial Data Services, Inc.                         By:  .......................................................
    Transfer Agency Mutual Fund Operations                    Authorized Signature of Dealer
    P.O. Box 45289                                            ------------        ----------------
    Jacksonville, Florida 32232-5289                          ------------        ----------------
                                                              ............................................................
                                                              Branch   Code           F/C   No.           F/C   Last  Name
                                                              ------------      --------------------
                                                              ------------      --------------------
                                                              Dealer's Customer A/C No.
</TABLE>
    

                                       42
<PAGE>
   
    MERRILL LYNCH ARIZONA MUNICIPAL BOND FUND - AUTHORIZATION FORM (PART 2)
    
- --------------------------------------------------------------------------------

NOTE: THIS FORM IS REQUIRED TO APPLY FOR THE SYSTEMATIC WITHDRAWAL OR AUTOMATIC
INVESTMENT PLANS ONLY.
- --------------------------------------------------------------------------------
1.  ACCOUNT REGISTRATION

<TABLE>
<S>                                                           <C>
Name of Owner ..............................................            ----------------------------------------
Name of Co-Owner (if any) ..................................                     Social Security Number
Address ....................................................               or Taxpayer Identification Number
 ...........................................................  Account Number .............................................
                                                                                 (if existing account)
</TABLE>

- --------------------------------------------------------------------------------
2.  SYSTEMATIC WITHDRAWAL  PLAN--CLASS  A  AND  D SHARES  ONLY  (SEE  TERMS  AND
    CONDITIONS IN THE STATEMENT OF ADDITIONAL INFORMATION)

   
    Minimum   Requirements:  $10,000  for   monthly  disbursements,  $5,000  for
quarterly, of  / /  Class A  or /  / Class  D shares  in Merrill  Lynch  Arizona
Municipal  Bond Fund at cost  or current offering price.  Withdrawals to be made
either  (check  one)        /  /  Monthly  on  the  24th  day  of  each   month,
or  / / Quarterly on the 24th day of March, June, September and December. If the
24th falls on a  weekend or holiday,  the next succeeding  business day will  be
utilized. Begin systematic withdrawal on ________________(month)________________
or as soon as possible thereafter.
    

SPECIFY  HOW YOU WOULD LIKE  YOUR WITHDRAWAL PAID TO  YOU (CHECK ONE):     / / $
- ------------or / /
- ------------% of the current value of / / Class  A or / / Class D shares in  the
account.

SPECIFY WITHDRAWAL METHOD: / / check or / / direct deposit to bank account
(check one and complete part (a) or (b) below):

DRAW CHECKS PAYABLE (CHECK ONE)

(a) I hereby authorize payment by check

   / / as indicated in Item 1.

   / / to the order of .........................................................

Mail to (check one)

   / / the address indicated in Item 1.

   / / Name (please print) .....................................................

Address ........................................................................
                                        ........................................

Signature of Owner ..........................     Date .........................

Signature of Co-Owner (if any) .................................................

(B)  I HEREBY  AUTHORIZE PAYMENT BY  DIRECT DEPOSIT  TO MY BANK  ACCOUNT AND, IF
NECESSARY, DEBIT  ENTRIES AND  ADJUSTMENTS FOR  ANY CREDIT  ENTRIES MADE  TO  MY
ACCOUNT.  I AGREE THAT THIS AUTHORIZATION WILL  REMAIN IN EFFECT UNTIL I PROVIDE
WRITTEN NOTIFICATION TO  FINANCIAL DATA SERVICES,  INC. AMENDING OR  TERMINATING
THIS SERVICE.

Specify type of account (check one)    / / checking    / / savings

Name on your account ...........................................................

Bank Name ......................................................................

Bank Number   ......................... Account Number .........................

Bank Address ...................................................................

                                        ........................................

Signature of Depositor .........................   Date ........................

Signature of Depositor .........................................................
(if joint account, both must sign)

NOTE:  IF DIRECT DEPOSIT IS ELECTED, YOUR BLANK, UNSIGNED CHECK MARKED "VOID" OR
A DEPOSIT SLIP FROM YOUR SAVINGS ACCOUNT SHOULD ACCOMPANY THIS APPLICATION.

                                       43
<PAGE>
   
   MERRILL LYNCH ARIZONA MUNICIPAL BOND FUND - AUTHORIZATION FORM (PART 2) -
                                  (CONTINUED)
    
- --------------------------------------------------------------------------------

3.  APPLICATION FOR AUTOMATIC INVESTMENT PLAN

    I hereby  request  that Financial  Data  Services, Inc.  draw  an  automated
clearing  house ("ACH")  debit on  my checking  account as  described below each
month to purchase: (choose one)

/ / Class A shares  / / Class B shares  / / Class C shares  / / Class D shares

   
of Merrill Lynch  Arizona Municipal  Bond Fund subject  to the  terms set  forth
below.  In  the event  that I  am not  eligible  to purchase  Class A  shares, I
understand that Class D shares will be purchased.
    

                         FINANCIAL DATA SERVICES, INC.

   
You are hereby authorized to draw an ACH debit each month on my bank account for
investment in Merrill Lynch Arizona Municipal Bond Fund as indicated below:
    

    Amount of each ACH debit $ .................................................

    Account number  ............................................................

Please date and invest ACH debits on the 20th of each month

beginning  .................................. or as soon thereafter as possible.
                   (Month)

    I agree that you are drawing these ACH debits voluntarily at my request  and
that you shall not be liable for any loss arising from any delay in preparing or
failure  to prepare any such debit. If I  change banks or desire to terminate or
suspend this  program, I  agree to  notify  you promptly  in writing.  I  hereby
authorize  you to  take any action  to correct  erroneous ACH debits  of my bank
account or purchases of fund shares including liquidating shares of the Fund and
crediting my bank  account. I  further agree  that if a  check or  debit is  not
honored  upon  presentation,  Financial  Data Services,  Inc.  is  authorized to
discontinue  immediately  the  Automatic   Investment  Plan  and  to   liquidate
sufficient  shares  held in  my account  to  offset the  purchase made  with the
dishonored debit.

 ...................................          ..................................
            Date                              Signature of Depositor

                                        ........................................
                                              Signature of Depositor
                                        (If joint account, both must sign)

                       AUTHORIZATION TO HONOR ACH DEBITS
                     DRAWN BY FINANCIAL DATA SERVICES, INC.

To ........................................................................ Bank
                               (Investor's Bank)

Bank Address ...................................................................
City  ................... State  ................... Zip Code ..................

As a convenience to me, I hereby request and authorize you to pay and charge  to
my  account ACH  debits drawn  on my  account by  and payable  to Financial Data
Services, Inc. I agree that your rights  in respect to each such debit shall  be
the  same as if it were  a check drawn on you  and signed personally by me. This
authority is to  remain in  effect until revoked  personally by  me in  writing.
Until you receive such notice, you shall be fully protected in honoring any such
debit.  I further agree  that if any  such debit be  dishonored, whether with or
without cause and whether intentionally or inadvertently, you shall be under  no
liability.

 ...................................          ..................................
            Date                              Signature of Depositor

 ...................................          ..................................
    Bank Account Number                       Signature of Depositor
                                        (If joint account, both must sign)

NOTE: IF AUTOMATIC INVESTMENT PLAN IS ELECTED, YOUR BLANK, UNSIGNED CHECK MARKED
"VOID" SHOULD ACCOMPANY THIS APPLICATION.

                                       44
<PAGE>
   
                                    MANAGER
                             Fund Asset Management
                            Administrative Offices:
                             800 Scudders Mill Road
                             Plainsboro, New Jersey
                                Mailing Address:
                                 P.O. Box 9011
                        Princeton, New Jersey 08543-9011
    

   
                                  DISTRIBUTOR
                     Merrill Lynch Funds Distributor, Inc.
                            Administrative Offices:
                             800 Scudders Mill Road
                             Plainsboro, New Jersey
                                Mailing Address:
                                 P.O. Box 9011
                        Princeton, New Jersey 08543-9011
    

   
                                   CUSTODIAN
                      State Street Bank and Trust Company
                                  P.O. Box 351
                          Boston, Massachusetts 02101
    

                                 TRANSFER AGENT
                         Financial Data Services, Inc.
                            Administrative Offices:
                     Transfer Agency Mutual Fund Operations
                           4800 Deer Lake Drive East
                        Jacksonville, Florida 32246-6484
                                Mailing Address:
                                 P.O. Box 45289
                        Jacksonville, Florida 32232-5289

   
                              INDEPENDENT AUDITORS
                             Deloitte & Touche LLP
                                117 Campus Drive
                          Princeton, New Jersey 08540
    

                                    COUNSEL
                                  Brown & Wood
                             One World Trade Center
                         New York, New York 10048-0557
<PAGE>
  NO  PERSON  HAS  BEEN  AUTHORIZED  TO GIVE  ANY  INFORMATION  OR  TO  MAKE ANY
REPRESENTATIONS, OTHER THAN  THOSE CONTAINED IN  THIS PROSPECTUS, IN  CONNECTION
WITH  THE OFFER CONTAINED IN THIS PROSPECTUS,  AND, IF GIVEN OR MADE, SUCH OTHER
INFORMATION OR REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED
BY THE  TRUST,  THE  MANAGER  OR  THE  DISTRIBUTOR.  THIS  PROSPECTUS  DOES  NOT
CONSTITUTE  AN OFFERING IN ANY STATE IN  WHICH SUCH OFFERING MAY NOT LAWFULLY BE
MADE.
                             ---------------------

                               TABLE OF CONTENTS

   
<TABLE>
<CAPTION>
                                                    PAGE
                                                    -----
<S>                                              <C>
Fee Table......................................           2
Merrill Lynch Select Pricing-SM- System........           4
Financial Highlights...........................           8
Investment Objective and Policies..............           9
  Potential Benefits...........................          11
  Special and Risk Considerations Relating to
    Arizona Municipal Bonds....................          11
  Description of Municipal Bonds...............          12
  Call Rights..................................          14
  When-Issued Securities and Delayed Delivery
    Transactions...............................          14
  Financial Futures Transactions and Options...          15
  Repurchase Agreements........................          17
  Investment Restrictions......................          17
Management of the Trust........................          19
  Trustees.....................................          19
  Management and Advisory Arrangements.........          19
  Transfer Agency Services.....................          20
Purchase of Shares.............................          20
  Initial Sales Charge Alternatives -- Class A
    and Class D Shares.........................          22
  Deferred Sales Charge Alternatives -- Class B
    and Class C Shares.........................          24
  Distribution Plans...........................          27
  Limitations on the Payment of Deferred Sales
    Charges....................................          28
Redemption of Shares...........................          29
  Redemption...................................          29
  Repurchase...................................          30
  Reinstatement Privilege -- Class A and Class
    D Shares...................................          30
Shareholder Services...........................          30
Portfolio Transactions.........................          33
Distributions and Taxes........................          33
  Distributions................................          33
  Taxes........................................          34
Performance Data...............................          36
Additional Information.........................          37
  Determination of Net Asset Value.............          37
  Organization of the Trust....................          38
  Shareholder Reports..........................          39
  Shareholder Inquiries........................          39
Authorization Form.............................          41
                                        Code # 13974 -- 1094
</TABLE>
    

   
         [LOGO]

  Merrill Lynch
  Arizona Municipal
  Bond Fund
    Merrill Lynch Multi-State
    Municipal Series Trust
    
   
   PROSPECTUS
    October 21, 1994
    Distributor:
    Merrill Lynch
    Funds Distributor, Inc.
    This prospectus should be
    retained for future reference.
    
<PAGE>
STATEMENT OF ADDITIONAL INFORMATION

                   MERRILL LYNCH ARIZONA MUNICIPAL BOND FUND
                MERRILL LYNCH MULTI-STATE MUNICIPAL SERIES TRUST
   
   P.O. BOX 9011, PRINCETON, NEW JERSEY 08543-9011--PHONE NO. (609) 282-2800
    

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

    Merrill  Lynch  Arizona Municipal  Bond  Fund (the  "Fund")  is a  series of
Merrill Lynch  Multi-State Municipal  Series Trust  (the "Trust"),  an  open-end
management  investment company organized as  a Massachusetts business trust. The
investment objective of the Fund is to provide shareholders with as high a level
of income exempt  from Federal and  Arizona income taxes  as is consistent  with
prudent  investment  management. The  Fund  invests primarily  in  a diversified
portfolio of long-term  investment grade  obligations the interest  on which  is
exempt  from Federal and Arizona income taxes  in the opinion of bond counsel to
the issuer  ("Arizona Municipal  Bonds"). There  can be  no assurance  that  the
investment objective of the Fund will be realized.

   
    Pursuant  to the  Merrill Lynch Select  Pricing-SM- System,  the Fund offers
four classes of  shares, each  with a  different combination  of sales  charges,
ongoing  fees and  other features. The  Merrill Lynch  Select Pricing-SM- System
permits an investor to choose the method of purchasing shares that the  investor
believes is most beneficial given the amount of the purchase, the length of time
the investor expects to hold the shares and other relevant circumstances.
    

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

   
    The  Statement of Additional Information of the Fund is not a prospectus and
should be read in conjunction with the prospectus of the Fund, dated October 21,
1994 (the "Prospectus"), which has been  filed with the Securities and  Exchange
Commission  and can be  obtained, without charge,  by calling or  by writing the
Fund at the  above telephone  number or  address. This  Statement of  Additional
Information has been incorporated by reference into the Prospectus.
    

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

   
                         FUND ASSET MANAGEMENT--MANAGER
    
               MERRILL LYNCH FUNDS DISTRIBUTOR, INC.--DISTRIBUTOR

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

   
   The date of this Statement of Additional Information is October 21, 1994.
    
<PAGE>
                       INVESTMENT OBJECTIVE AND POLICIES

    The investment objective of the Fund is to provide shareholders with as high
a  level of income exempt from Federal and Arizona income taxes as is consistent
with prudent investment management. The Fund  seeks to achieve its objective  by
investing  primarily in  a portfolio  of long-term  obligations issued  by or on
behalf of  the  State  of  Arizona, its  political  subdivisions,  agencies  and
instrumentalities  and obligations of other  qualifying issuers, such as issuers
located in Puerto Rico, the Virgin Islands and Guam, which pay interest  exempt,
in  the opinion of bond  counsel to the issuer,  from Federal and Arizona income
taxes. Obligations exempt from  Federal income taxes are  referred to herein  as
"Municipal  Bonds" and obligations  exempt from both  Federal and Arizona income
taxes are referred to as "Arizona Municipal Bonds". Unless otherwise  indicated,
references  to  Municipal Bonds  shall be  deemed  to include  Arizona Municipal
Bonds. The Fund anticipates that at all times, except during temporary defensive
periods, it will maintain at least 65%  of its total assets invested in  Arizona
Municipal Bonds. At times, the Fund will seek to hedge its portfolio through the
use  of futures transactions to reduce volatility in the net asset value of Fund
shares. Reference  is  made  to  "Investment  Objective  and  Policies"  in  the
Prospectus  for a  discussion of  the investment  objective and  policies of the
Fund.

   
    Municipal  Bonds  may   include  general  obligation   bonds  of   political
subdivisions  of the State; revenue bonds  to finance utility systems, highways,
bridges, port and airport  facilities, colleges, hospitals, housing  facilities,
etc.,  and industrial development bonds or  private activity bonds. The interest
on such  obligations may  bear a  fixed  rate or  be payable  at a  variable  or
floating  rate. The Municipal Bonds purchased by the Fund will be primarily what
are commonly referred to as "investment grade" securities, which are obligations
rated at  the  time of  purchase  within the  four  highest quality  ratings  as
determined by either Moody's Investors Service ("Moody's") (currently Aaa, Aa, A
and  Baa), Standard &  Poor's Corporation ("Standard  & Poor's") (currently AAA,
AA, A and BBB) or Fitch Investors Service, Inc. ("Fitch") (currently AAA, AA,  A
and  BBB). If unrated, such securities will possess creditworthiness comparable,
in the opinion  of the manager  of the  Fund, Fund Asset  Management, L.P.  (the
"Manager"), to other obligations in which the Fund may invest.
    

    The  Fund ordinarily does not intend to realize investment income not exempt
from Federal and  Arizona income  taxes. However,  to the  extent that  suitable
Municipal  Bonds are  not available  for investment  by the  Fund, the  Fund may
purchase   obligations   issued   by   other   states,   their   agencies    and
instrumentalities,  the interest  income on which  is exempt, in  the opinion of
bond counsel, from Federal but not  Arizona, taxation. The Fund also may  invest
in securities not issued by or on behalf of a state or territory or by an agency
or instrumentality thereof, if the Fund nevertheless believes such securities to
be  exempt from Federal income taxation ("Non-Municipal Tax-Exempt Securities").
Non-Municipal Tax-Exempt  Securities  may  include securities  issued  by  other
investment  companies that invest in municipal bonds, to the extent permitted by
applicable law. Other  Non-Municipal Tax-Exempt Securities  could include  trust
certificates  or other instruments evidencing interests in one or more long-term
municipal securities.

    Except when  acceptable  securities are  unavailable  as determined  by  the
Manager,  the Fund, under normal circumstances, will  invest at least 65% of its
total assets in  Arizona Municipal Bonds.  For temporary periods  or to  provide
liquidity,  the Fund has the authority to invest as much as 35% of its assets in
tax-exempt or taxable money  market obligations with a  maturity of one year  or
less  (such  short-term  obligations  being  referred  to  herein  as "Temporary
Investments"), except that taxable Temporary Investments shall not exceed 20% of
the Fund's net assets. The Fund at all  times will have at least 80% of its  net
assets invested in

                                       2
<PAGE>
securities  exempt from Federal  income taxation. However,  interest received on
certain  otherwise  tax-exempt  securities  which  are  classified  as  "private
activity bonds" (in general bonds that benefit non-governmental entities) may be
subject  to  an alternative  minimum  tax. The  Fund  may purchase  such private
activity bonds.

    See "Distributions and Taxes". In addition,  the Fund reserves the right  to
invest  temporarily a greater portion of its assets in Temporary Investments for
defensive purposes,  when, in  the judgment  of the  Manager, market  conditions
warrant.  The investment objectives of the Fund  set forth in this paragraph are
fundamental policies of the Fund  which may not be changed  without a vote of  a
majority  of the outstanding  shares of the Fund.  The Fund's hedging strategies
are not fundamental policies and  may be modified by  the Trustees of the  Trust
without the approval of the Fund's shareholders.

    Municipal  Bonds may  at times  be purchased or  sold on  a delayed delivery
basis or  a when-issued  basis.  These transactions  arise when  securities  are
purchased  or sold  by the Fund  with payment  and delivery taking  place in the
future, often a month or more after the purchase. The payment obligation and the
interest rate are each fixed at the  time the buyer enters into the  commitment.
The  Fund  will  make only  commitments  to  purchase such  securities  with the
intention of actually  acquiring the  securities, but  the Fund  may sell  these
securities  prior to the  settlement date if it  is deemed advisable. Purchasing
Municipal Bonds  on  a when-issued  basis  involves  the risk  that  the  yields
available  in the market  when the delivery  takes place may  actually be higher
than those obtained in the transaction itself; if yields so increase, the  value
of  the when-issued obligation generally will decrease. The Fund will maintain a
separate account at its custodian bank  consisting of cash, cash equivalents  or
high-grade,  liquid Municipal Bonds or Temporary  Investments (valued on a daily
basis) equal at all times to the amount of the when-issued commitment.

    The Fund may invest  in Municipal Bonds  the return on which  is based on  a
particular index of value or interest rates. For example, the Fund may invest in
Municipal  Bonds that pay interest based on  an index of Municipal Bond interest
rates or based  on the  value of  gold or  some other  commodity. The  principal
amount payable upon maturity of certain Municipal Bonds also may be based on the
value  of an  index. Also,  the Fund may  invest in  so-called "inverse floating
obligations" or "residual interest bonds" on which the interest rates  typically
decline  as  market rates  increase and  increase as  market rates  decline. For
example, to the extent the Fund invests  in these types of Municipal Bonds,  the
Fund's  return on such Municipal  Bonds will be subject  to risk with respect to
the value of the particular index. Such securities have the effect of  providing
a degree of investment leverage, since they may increase or decrease in value in
response  to changes,  as an  illustration, in market  interest rates  at a rate
which is a multiple  (typically two) of the  rate at which fixed-rate  long-term
tax  exempt securities increase  or decrease in  response to such  changes. As a
result, the market  values of such  securities will generally  be more  volatile
than the market values of fixed-rate tax exempt securities. To seek to limit the
volatility   of  these  securities,  the  Fund  may  purchase  inverse  floating
obligations with shorter  term maturities  or which contain  limitations on  the
extent  to which the interest  rate may vary. The  Manager believes that indexed
and inverse  floating  obligations  represent a  flexible  portfolio  management
instrument  for  the  Fund  which  allows the  Manager  to  vary  the  degree of
investment leverage relatively  efficiently under  different market  conditions.
Certain investments in such obligations may be illiquid. The Fund may not invest
in  such illiquid obligations if such  investments, together with other illiquid
investments, would exceed 10% of the Fund's net assets.

    The Fund may  purchase a  Municipal Bond  issuer's right  to call  all or  a
portion  of  such Municipal  Bond  for mandatory  tender  for purchase  (a "Call
Right"). A holder of a Call Right may exercise such right to require a mandatory
tender  for  the  purchase  of  related  Municipal  Bonds,  subject  to  certain
conditions. A

                                       3
<PAGE>
Call  Right that is not exercised prior to the maturity of the related Municipal
Bond will expire  without value. The  economic effect to  holding both the  Call
Right and the related Municipal Bond is identical to holding a Municipal Bond as
a  non-callable  security.  Certain  investments  in  such  obligations  may  be
illiquid. The  Fund  may  not  invest  in  such  illiquid  obligations  if  such
investments,  together with other illiquid investments,  would exceed 10% of the
Fund's net assets.

    The Fund may invest up to 20%  of its total assets in Municipal Bonds  which
are  rated below Baa  by Moody's or below  BBB by Standard &  Poor's or Fitch or
which, in the Manager's judgment, possess similar credit characteristics  ("high
yield  securities").  See  Appendix  II  --  "Ratings  of  Municipal  Bonds" for
additional  information  regarding  ratings  of  debt  securities.  The  Manager
considers  the ratings assigned by Standard & Poor's, Moody's or Fitch as one of
several factors in its independent credit analysis of issuers.

    High yield securities are considered by Standard & Poor's, Moody's and Fitch
to have varying degrees  of speculative characteristics. Consequently,  although
high  yield securities can be expected to provide higher yields, such securities
may be  subject  to  greater market  price  fluctuations  and risk  of  loss  of
principal than lower yielding, higher rated debt securities. Investments in high
yield  securities will be made  only when, in the  judgment of the Manager, such
securities provide attractive  total return  potential relative to  the risk  of
such  securities, as compared  to higher quality debt  securities. The Fund will
not invest in debt securities in the lowest rating categories (those rated CC or
lower by  Standard &  Poor's or  Fitch or  Ca or  lower by  Moody's) unless  the
Manager  believes that the  financial condition of the  issuer or the protection
afforded the particular securities is stronger than would otherwise be indicated
by such low ratings. The Fund does  not intend to purchase debt securities  that
are in default or which the Manager believes will be in default.

    Issuers  of high yield securities  may be highly leveraged  and may not have
available to them more  traditional methods of  financing. Therefore, the  risks
associated  with acquiring the securities of  such issuers or obligors generally
are greater than is the case  with higher rated securities. For example,  during
an  economic downturn or a sustained period of rising interest rates, issuers of
high yield  securities  may  be  more likely  to  experience  financial  stress,
especially  if such  issuers are highly  leveraged. In addition,  the market for
high yield municipal securities is relatively new and has not weathered a  major
economic  recession, and it is unknown what  effects such a recession might have
on such securities. During  such periods, such issuers  may not have  sufficient
revenues  to meet  their interest payment  obligations. The  issuer's ability to
service its debt obligations also may  be adversely affected by specific  issuer
developments,  or  the issuer's  inability to  meet specific  projected business
forecasts, or the unavailability of additional  financing. The risk of loss  due
to  default by the issuer is significantly greater for the holders of high yield
securities because such securities may be  unsecured and may be subordinated  to
other creditors of the issuer.

    High yield securities frequently have call or redemption features that would
permit  an  issuer to  repurchase the  security from  the Fund.  If a  call were
exercised by the issuer  during a period of  declining interest rates, the  Fund
likely  would  have  to  replace  such called  security  with  a  lower yielding
security, thus decreasing the net investment income to the Fund and dividends to
shareholders.

    The Fund  may have  difficulty disposing  of certain  high yield  securities
because  there may be a thin trading market for such securities. Because not all
dealers maintain markets in all high  yield securities, there is no  established
secondary  market for  many of these  securities, and the  Fund anticipates that
such  securities  could  be  sold  only  to  a  limited  number  of  dealers  or
institutional  investors. To the extent that a secondary trading market for high
yield securities does  exist, it  generally is not  as liquid  as the  secondary
market  for higher rated securities. Reduced secondary market liquidity may have
an adverse impact on market price

                                       4
<PAGE>
and the Fund's ability  to dispose of particular  issues when necessary to  meet
the Fund's liquidity needs or in response to a specific economic event such as a
deterioration  in the creditworthiness  of the issuer.  Reduced secondary market
liquidity for certain securities also may make it more difficult for the Fund to
obtain accurate market quotations for purposes of valuing the Fund's  portfolio.
Market  quotations are  generally available on  many high  yield securities only
from a limited number of dealers and may not necessarily represent firm bids  of
such dealers or prices for actual sales.

    It  is  expected that  a significant  portion of  the high  yield securities
acquired by the Fund will be purchased upon issuance, which may involve  special
risks  because the securities so acquired are  new issues. In such instances the
Fund may  be  a  substantial purchaser  of  the  issue and  therefore  have  the
opportunity  to participate in  structuring the terms  of the offering. Although
this may enable  the Fund  to seek  to protect  itself against  certain of  such
risks, the considerations discussed herein would nevertheless remain applicable.

    Adverse  publicity  and  investor perceptions,  which  may not  be  based on
fundamental analysis, also may  decrease the value and  liquidity of high  yield
securities,  particularly in a thinly traded market. Factors adversely affecting
the market value  of high yield  securities are likely  to adversely affect  the
Fund's  net asset value. In addition, the  Fund may incur additional expenses to
the extent that it is  required to seek recovery upon  a default on a  portfolio
holding or participate in the restructuring of the obligation.

            DESCRIPTION OF MUNICIPAL BONDS AND TEMPORARY INVESTMENTS

    Set  forth  below is  a  description of  the  Municipal Bonds  and Temporary
Investments in which the Fund may invest. A more complete discussion  concerning
futures  and options transactions  is set forth  under "Investment Objective and
Policies" in the  Prospectus. Information  with respect to  ratings assigned  to
tax-exempt  obligations which the Fund may purchase  is set forth in Appendix II
to this Statement of Additional Information.

DESCRIPTION OF MUNICIPAL BONDS

    Municipal Bonds include debt obligations issued to obtain funds for  various
public  purposes, including construction  of a wide  range of public facilities,
refunding of outstanding obligations and  obtaining funds for general  operating
expenses  and loans  to other public  institutions and  facilities. In addition,
certain types  of industrial  development bonds  or private  activity bonds  are
issued  by or on behalf of public authorities to finance various privately owned
or operated facilities. Such obligations are included within the term  Municipal
Bonds  if the interest paid thereon is, in the opinion of bond counsel, excluded
from gross income for Federal  income tax purposes and,  in the case of  Arizona
Municipal  Bonds,  exempt from  Arizona personal  income  taxes. Other  types of
industrial development bonds or  private activity bonds,  the proceeds of  which
are  used for  the construction, equipment,  repair or  improvement of privately
operated industrial or  commercial facilities, may  constitute Municipal  Bonds,
although  the current Federal tax laws place substantial limitations on the size
of such issues.

    The  two  principal   classifications  of  Municipal   Bonds  are   "general
obligation"  bonds and "revenue" bonds. General  obligation bonds are secured by
the issuer's  pledge  of faith,  credit  and taxing  power  for the  payment  of
principal and interest. Revenue bonds are payable only from the revenues derived
from  a particular facility or  class of facilities or,  in some cases, from the
proceeds of a special or  limited tax or other  specific revenue source such  as
payments  from the user  of the facility  being financed. Industrial development
bonds or private activity bonds are in most cases revenue bonds and generally do
not constitute the pledge of

                                       5
<PAGE>
the credit or taxing power of the  issuer of such bonds. Generally, the  payment
of  the principal of and interest on such bonds depends solely on the ability of
the user of the facility financed by the bonds to meet its financial obligations
and the pledge, if any,  of real and personal  property so financed as  security
for  such payment unless a letter of credit, bond insurance or other security is
furnished. The Fund may also invest in Municipal Bonds that are so-called "moral
obligation" bonds; however, the Fund may invest in Arizona Municipal Bonds which
are moral obligation bonds only to the extent such bonds become available. If an
issuer of  moral  obligation  bonds  is unable  to  meet  its  obligations,  the
repayment  of such bonds becomes a moral commitment, but not a legal obligation,
of the state or municipality in question.

    Also  included  within   the  general  category   of  Municipal  Bonds   are
participation  certificates  issued  by government  authorities  or  entities to
finance the acquisition  or construction of  equipment, land and/or  facilities.
The  certificates represent participations  in a lease,  an installment purchase
contract or a conditional sales contract (hereinafter collectively called "lease
obligations") relating to such equipment, land or facilities. Lease  obligations
do  not  constitute general  obligations of  the issuer  for which  the issuer's
unlimited taxing  power is  pledged. In  the case  of Municipal  Bonds, but  not
Arizona Municipal Bonds, a lease obligation is frequently backed by the issuer's
covenant  to budget for, appropriate  and make the payments  due under the lease
obligation. Certain investments in lease  obligations may be illiquid. The  Fund
may  not invest in illiquid lease  obligations if such investments together with
all other illiquid investments, would exceed  10% of the Fund's net assets.  The
Fund may, however, invest without regard to such limitation in lease obligations
which  the Manager, pursuant  to the guidelines  which have been  adopted by the
Board of  Trustees and  subject to  the supervision  of the  Board of  Trustees,
determines  to be liquid. The Manager will deem lease obligations liquid if they
are publicly offered  and have  received an investment  grade rating  of Baa  or
better by Moody's, or BBB or better by Standard & Poor's or Fitch. Unrated lease
obligations, or those rated below investment grade, will be considered liquid if
the  obligations come to the market  through an underwritten public offering and
at least two dealers are willing to  give competitive bids. In reference to  the
latter,  the Manager must, among other things, also review the credit worthiness
of the municipality  obligated to make  payment under the  lease obligation  and
make  certain specified determinations based on such factors as the existence of
a rating or  credit enhancement such  as insurance, the  frequency of trades  or
quotes for the obligation and the willingness of dealers to make a market in the
obligation.

    Yields  on Municipal Bonds are dependent  on a variety of factors, including
the general condition of the money market and of the municipal bond market,  the
size  of  a particular  offering,  the financial  condition  of the  issuer, the
general conditions of the Municipal Bond market, the maturity of the obligation,
and the rating of the issue. The  ability of the Fund to achieve its  investment
objective  is also  dependent on  the continuing ability  of the  issuers of the
bonds in which the  Fund invests to  meet their obligations  for the payment  of
interest  and principal when due. There are  variations in the risks involved in
holding Municipal Bonds,  both within  a particular  classification and  between
classifications,  depending  on  numerous factors.  Furthermore,  the  rights of
owners of Municipal Bonds  and the obligations of  the issuer of such  Municipal
Bonds  may be subject to applicable  bankruptcy, insolvency and similar laws and
court decisions affecting the rights of creditors generally.

DESCRIPTION OF TEMPORARY INVESTMENTS

    The Fund may invest in short-term tax-free and taxable securities subject to
the limitations  set  forth  under  "Investment  Objective  and  Policies".  The
tax-exempt  money  market  securities  may  include  municipal  notes, municipal
commercial paper, municipal  bonds with a  remaining maturity of  less than  one
year,

                                       6
<PAGE>
variable  rate demand notes and  participations therein. Municipal notes include
tax anticipation notes,  bond anticipation notes  and grant anticipation  notes.
Anticipation  notes  are  sold  as  interim  financing  in  anticipation  of tax
collection,  bond  sales,  government  grants  or  revenue  receipts.  Municipal
commercial  paper  refers  to short-term  unsecured  promissory  notes generally
issued to finance short-term credit  needs. The taxable money market  securities
in which the Fund may invest as Temporary Investments consist of U.S. Government
securities,   U.S.  Government  agency  securities,  domestic  bank  or  savings
institution  certificates  of  deposit  and  bankers'  acceptances,   short-term
corporate  debt securities such as  commercial paper, and repurchase agreements.
These Temporary Investments  must have a  stated maturity not  in excess of  one
year from the date of purchase.

    Variable  rate demand obligations ("VRDOs") are tax-exempt obligations which
contain  a  floating  or  variable  interest  rate  adjustment  formula  and  an
unconditional  right of  demand on  the part  of the  holder thereof  to receive
payment of  the unpaid  principal balance  plus accrued  interest upon  a  short
notice  period not to exceed seven days. There is, however, the possibility that
because of default or insolvency the  demand feature of VRDOs and  Participating
VRDOs, described below, may not be honored. The interest rates are adjustable at
intervals  (ranging from daily to up to one year) to some prevailing market rate
for similar investments,  such adjustment formula  being calculated to  maintain
the  market value of the VRDO at approximately the par value of the VRDOs on the
adjustment date. The adjustments typically are  set at a rate determined by  the
remarketing  agent  or  based  upon the  prime  rate  of a  bank  or  some other
appropriate interest rate adjustment index. The Fund may invest in all types  of
tax-exempt instruments currently outstanding or to be issued in the future which
satisfy the short-term maturity and quality standards of the Fund.

    The  Fund also may  invest in VRDOs  in the form  of participation interests
("Participating VRDOs")  in  variable  rate tax-exempt  obligations  held  by  a
financial  institution, typically a commercial bank. Participating VRDOs provide
the Fund with  a specified  undivided interest (up  to 100%)  of the  underlying
obligation  and the right to demand payment of the unpaid principal balance plus
accrued interest on the Participating VRDOs from the financial institution  upon
a  specified number of  days' notice, not  to exceed seven  days. In addition, a
Participating VRDO is backed by an  irrevocable letter of credit or guaranty  of
the  financial institution.  The Fund  would have  an undivided  interest in the
underlying obligation and thus  participate on the same  basis as the  financial
institution  in such obligation except  that the financial institution typically
retains fees  out of  the interest  paid  on the  obligation for  servicing  the
obligation,   providing  the  letter  of   credit  and  issuing  the  repurchase
commitment. The Fund has  been advised by  its counsel that  the Fund should  be
entitled  to treat the  income received on Participating  VRDOs as interest from
tax-exempt obligations.

    VRDOs that contain an  unconditional right of demand  to receive payment  of
the  unpaid principal balance plus accrued interest on a notice period exceeding
seven days may be deemed to be illiquid securities. A VRDO with a demand  notice
period  exceeding seven days will therefore be subject to the Fund's restriction
on illiquid investments unless,  in the judgment of  the Trustees, such VRDO  is
liquid.  The Trustees may adopt guidelines and delegate to the Manager the daily
function of determining and  monitoring liquidity of  such VRDOs. The  Trustees,
however, will retain sufficient oversight and will be ultimately responsible for
such determination.

    The  Trust has  established the  following standards  with respect  to money
market securities  and  VRDOs  in  which  the  Fund  invests.  Commercial  paper
investments  at  the time  of  purchase must  be  rated "A-1"  through  "A-3" by
Standard & Poor's, "Prime-1" through "Prime-3" by Moody's or "F-1" through "F-3"
by

                                       7
<PAGE>
Fitch or, if  not rated, issued  by companies having  an outstanding debt  issue
rated  at  least "A"  by Standard  &  Poor's, Fitch  or Moody's.  Investments in
corporate bonds  and debentures  (which  must have  maturities  at the  date  of
purchase of one year or less) must be rated at the time of purchase at least "A"
by  Standard & Poor's, Moody's or Fitch. Notes and VRDOs at the time of purchase
must be  rated SP-1/A-1  through  SP-2/A-3 by  Standard &  Poor's,  MIG-l/VMIG-1
through  MIG-4/VMIG-4  by  Moody's  or  F-1  through  F-3  by  Fitch.  Temporary
Investments, if not rated, must be of comparable quality to securities rated  in
the  above rating categories,  in the opinion  of the Manager.  The Fund may not
invest in any  security issued  by a commercial  bank or  a savings  institution
unless  the bank or institution is organized and operating in the United States,
has total assets of at least one billion dollars and is a member of the  Federal
Deposit  Insurance Corporation ("FDIC"),  except that up to  10% of total assets
may be  invested  in certificates  of  deposit  of small  institutions  if  such
certificates are fully insured by the FDIC.

   
REPURCHASE AGREEMENTS
    

   
    The  Fund  may  invest  in  securities  pursuant  to  repurchase agreements.
Repurchase agreements may be entered into only with a member bank of the Federal
Reserve System or primary dealer in  U.S. Government securities or an  affiliate
thereof.  Under  such  agreements, the  seller  agrees, upon  entering  into the
contract, to repurchase the security at  a mutually agreed upon time and  price,
thereby determining the yield during the term of the agreement. The Fund may not
invest  in  repurchase  agreements maturing  in  more  than seven  days  if such
investments, together with all other  illiquid investments, would exceed 10%  of
the  Fund's net assets. In the event of default by the seller under a repurchase
agreement, the Fund may suffer time delays and incur costs or possible losses in
connection with the disposition of the underlying securities.
    

    In general,  for  Federal income  tax  purposes, repurchase  agreements  are
treated  as collateralized  loans secured  by the  securities "sold". Therefore,
amounts earned under such agreements will not be considered tax-exempt interest.
The treatment of  purchase and sale  contracts is less  certain. However, it  is
likely that income from such arrangements also will not be considered tax-exempt
interest.

FINANCIAL FUTURES TRANSACTIONS AND OPTIONS

    Reference  is made to  the discussion concerning  futures transactions under
"Investment Objective  and  Policies" in  the  Prospectus. Set  forth  below  is
additional information concerning these transactions.

    As  described in  the Prospectus,  the Fund  may purchase  and sell exchange
traded financial futures contracts ("financial futures contracts") to hedge  its
portfolio  of Municipal Bonds  against declines in the  value of such securities
and to hedge against  increases in the  cost of securities  the Fund intends  to
purchase.  However, any transactions involving financial futures or options will
be in accordance with the Fund's  investment policies and limitations. To  hedge
its  portfolio, the Fund may  take an investment position  in a futures contract
which will move  in the  opposite direction  from the  portfolio position  being
hedged.  While  the Fund's  use of  hedging strategies  is intended  to moderate
capital changes in portfolio holdings and  thereby reduce the volatility of  the
net  asset value of Fund  shares, the Fund anticipates  that its net asset value
will fluctuate. Set forth below is information concerning futures transactions.

    DESCRIPTION OF FUTURES CONTRACTS. A futures contract is an agreement between
two parties to buy and sell a security, or in the case of an index-based futures
contract, to make and accept a cash settlement for a set price on a future date.
A majority of transactions in futures  contracts, however, do not result in  the
actual

                                       8
<PAGE>
delivery  of  the  underlying instrument  or  cash settlement,  but  are settled
through liquidation, i.e., by entering  into an offsetting transaction.  Futures
contracts  have  been designed  by boards  of trade  which have  been designated
"contracts markets" by the Commodity Futures Trading Commission ("CFTC").

    The purchase or sale of a futures contract differs from the purchase or sale
of a security  in that  no price  or premium is  paid or  received. Instead,  an
amount  of cash or securities acceptable to the broker and the relevant contract
market, which varies, but is generally about  5% of the contract amount must  be
deposited  with  the  broker.  This  amount is  known  as  "initial  margin" and
represents a "good faith" deposit assuring the performance of both the purchaser
and seller  under the  futures contract.  Subsequent payments  to and  from  the
broker,  called "variation margin", are required to  be made on a daily basis as
the price of the futures contract fluctuates making the long and short positions
in the futures contract more or less  valuable, a process known as "mark to  the
market".  At any time prior to the  settlement date of the futures contract, the
position may be closed out by taking an opposite position which will operate  to
terminate  the  position  in  the futures  contract.  A  final  determination of
variation margin is  then made, additional  cash is  required to be  paid to  or
released by the broker and the purchaser realizes a loss or gain. In addition, a
nominal commission is paid on each completed sale transaction.

    The Fund deals in financial futures contracts based on a long-term municipal
bond  index developed by the  Chicago Board of Trade  ("CBT") and The Bond Buyer
(the "Municipal  Bond Index").  The  Municipal Bond  Index  is comprised  of  40
tax-exempt  municipal revenue and general  obligations bonds. Each bond included
in the Municipal Bond Index must be rated  A or higher by Moody's or Standard  &
Poor's and must have a remaining maturity of 19 years or more. Twice a month new
issues satisfying the eligibility requirements are added to, and an equal number
of  old issues  are deleted  from, the  Municipal Bond  Index. The  value of the
Municipal Bond Index is computed daily according to a formula based on the price
of each bond in the Municipal  Bond Index, as evaluated by six  dealer-to-dealer
brokers.

    The  Municipal Bond Index futures  contract is traded only  on the CBT. Like
other contract  markets, the  CBT assures  performance under  futures  contracts
through a clearing corporation, a nonprofit organization managed by the exchange
membership  which also is responsible for  handling daily accounting of deposits
or withdrawals of margin.

    As described in  the Prospectus, the  Fund may purchase  and sell  financial
futures  contracts  on U.S.  Government securities  as  a hedge  against adverse
changes in interest rates  as described below. With  respect to U.S.  Government
securities,  currently there are financial  futures contracts based on long-term
U.S. Treasury bonds,  Treasury notes, Government  National Mortgage  Association
("GNMA") Certificates and three-month U.S. Treasury bills. The Fund may purchase
and  write  call  and  put  options  on  futures  contracts  on  U.S. Government
securities in connection with its hedging strategies.

    Subject to policies  adopted by the  Trustees, the Fund  also may engage  in
other  futures  contracts  transactions  such  as  futures  contracts  on  other
municipal bond  indices  which may  become  available  if the  Manager  and  the
Trustees  should  determine  that  there is  normally  a  sufficient correlation
between the prices of  such futures contracts and  the Municipal Bonds in  which
the Fund invests to make such hedging appropriate.

    FUTURES  STRATEGIES. The Fund  may sell a  financial futures contract (i.e.,
assume a  short position)  in anticipation  of a  decline in  the value  of  its
investments  in Municipal Bonds resulting from  an increase in interest rates or
otherwise. The risk of decline could  be reduced without employing futures as  a
hedge by

                                       9
<PAGE>
selling  such Municipal Bonds and either  reinvesting the proceeds in securities
with shorter maturities or  by holding assets in  cash. This strategy,  however,
entails  increased transaction costs in the form of dealer spreads and typically
would reduce the average yield of the Fund's portfolio securities as a result of
the shortening  of  maturities.  The  sale  of  futures  contracts  provides  an
alternative means of hedging against declines in the value of its investments in
Municipal  Bonds. As such values  decline, the value of  the Fund's positions in
the futures contracts will tend to increase, thus offsetting all or a portion of
the depreciation in the  market value of the  Fund's Municipal Bond  investments
which are being hedged. While the Fund will incur commission expenses in selling
and closing out futures positions, commissions on futures transactions are lower
than  transaction costs incurred  in the purchase and  sale of Arizona Municipal
Bonds and Municipal Bonds. In addition, the ability of the Fund to trade in  the
standardized  contracts  available  in  the futures  markets  may  offer  a more
effective defensive position than  a program to reduce  the average maturity  of
the  portfolio  securities due  to the  unique and  varied credit  and technical
characteristics of  the  municipal  debt  instruments  available  to  the  Fund.
Employing  futures as  a hedge also  may permit  the Fund to  assume a defensive
posture without  reducing  the  yield  on its  investments  beyond  any  amounts
required to engage in futures trading.

    When  the Fund  intends to purchase  Municipal Bonds, the  Fund may purchase
futures contracts as a hedge against any increase in the cost of such  Municipal
Bonds, resulting from an increase in interest rates or otherwise, that may occur
before  such purchases  can be  effected. Subject  to the  degree of correlation
between the Municipal Bonds and  the futures contracts, subsequent increases  in
the cost of Municipal Bonds should be reflected in the value of the futures held
by  the  Fund. As  such  purchases are  made,  an equivalent  amount  of futures
contracts will be  closed out. Due  to changing market  conditions and  interest
rate  forecasts,  however,  a  futures  position  may  be  terminated  without a
corresponding purchase of portfolio securities.

    CALL OPTIONS  ON FUTURES  CONTRACTS. The  Fund also  may purchase  and  sell
exchange  traded call  and put  options on  financial futures  contracts on U.S.
Government securities. The purchase  of a call option  on a futures contract  is
analogous  to the purchase of a call option on an individual security. Depending
on the pricing of the option compared to either the futures contract on which it
is based, or on the price of the  underlying debt securities, it may or may  not
be  less  risky  than  ownership  of the  futures  contract  or  underlying debt
securities. Like the purchase  of a futures contract,  the Fund will purchase  a
call  option on a  futures contract to  hedge against a  market advance when the
Fund is not fully invested.

    The writing of  a call option  on a futures  contract constitutes a  partial
hedge  against declining  prices of  the securities  which are  deliverable upon
exercise of the futures  contract. If the futures  price at expiration is  below
the  exercise price, the Fund will retain  the full amount of the option premium
which provides a partial hedge against any decline that may have occurred in the
Fund's portfolio holdings.

    PUT OPTIONS  ON FUTURES  CONTRACTS. The  purchase of  options on  a  futures
contract  is analogous  to the purchase  of protective put  options on portfolio
securities. The Fund will purchase put options on futures contracts to hedge the
Fund's portfolio against the risk of rising interest rates.

    The writing of  a put  option on a  futures contract  constitutes a  partial
hedge  against increasing  prices of the  securities which  are deliverable upon
exercise of the futures contract. If  the futures price at expiration is  higher
than  the exercise  price, the Fund  will retain  the full amount  of the option
premium which provides  a partial  hedge against any  increase in  the price  of
Municipal Bonds which the Fund intends to purchase.

                                       10
<PAGE>
    The writer of an option on a futures contract is required to deposit initial
and  variation margin  pursuant to requirements  similar to  those applicable to
futures contracts.  Premiums received  from the  writing of  an option  will  be
included  in initial  margin. The  writing of  an option  on a  futures contract
involves risks similar to those relating to futures contracts.
                              -------------------

    The Trust has received an order from the Securities and Exchange  Commission
(the "Commission") exempting it from the provisions of Section 17(f) and Section
18(f)  of the Investment Company Act of 1940 (the "1940 Act") in connection with
its strategy of  investing in futures  contracts. Section 17(f)  relates to  the
custody  of securities  and other  assets of  an investment  company and  may be
deemed to  prohibit  certain  arrangements between  the  Trust  and  commodities
brokers  with respect to initial and variation margin. Section 18(f) of the 1940
Act prohibits an open-end  investment company such as  the Trust from issuing  a
"senior  security"  other  than  a  borrowing from  a  bank.  The  staff  of the
Securities and Exchange  Commission has  in the  past indicated  that a  futures
contract may be a "senior security" under the 1940 Act.

    RESTRICTIONS  ON  USE  OF  FUTURES  TRANSACTIONS.  Regulations  of  the CFTC
applicable to  the Fund  require that  all of  the Fund's  futures  transactions
constitute  bona fide hedging  transactions and that the  Fund purchase and sell
futures contracts and options  thereon (i) for bona  fide hedging purposes,  and
(ii)  for non-hedging  purposes, if  the aggregate  initial margin  and premiums
required to establish positions in such contracts and options does not exceed 5%
of the  liquidation value  of  the Fund's  portfolio  assets after  taking  into
account  unrealized  profits and  unrealized losses  on  any such  contracts and
options.  (However,  the  Fund  intends   to  engage  in  options  and   futures
transactions  only for hedging purposes.) Margin deposits may consist of cash or
securities acceptable to the broker and the relevant contract market.

    When the Fund  purchases futures  contracts or  a call  option with  respect
thereto  or writes a put  option on a futures contract,  an amount of cash, cash
equivalents or short-term, high-grade, fixed income securities will be deposited
in a  segregated  account  with the  Fund's  custodian  so that  the  amount  so
segregated,  plus the amount of initial and variation margin held in the account
of its broker, equals the market value of the futures contract, thereby ensuring
that the use of such futures is unleveraged.

    RISK FACTORS  IN FUTURES  TRANSACTIONS AND  OPTIONS. Investment  in  futures
contracts  involves the risk  of imperfect correlation  between movements in the
price of the futures contract  and the price of  the security being hedged.  The
hedge  will not be  fully effective when there  is imperfect correlation between
the movements in the  prices of two financial  instruments. For example, if  the
price  of the futures contract moves more than the price of the hedged security,
the Fund will experience either a loss or gain on the futures contract which  is
not  completely offset by  movements in the  price of the  hedged securities. To
compensate for imperfect  correlations, the  Fund may purchase  or sell  futures
contracts  in  a  greater  dollar  amount  than  the  hedged  securities  if the
volatility of the hedged securities is historically greater than the  volatility
of  the  futures contracts.  Conversely,  the Fund  may  purchase or  sell fewer
futures contracts if  the volatility of  the price of  the hedged securities  is
historically less than that of the futures contracts.

    The particular municipal bonds comprising the index underlying the Municipal
Bond  Index financial futures contract may vary from the bonds held by the Fund.
As a result, the  Fund's ability to  hedge effectively all or  a portion of  the
value of its Municipal Bonds through the use of such financial futures contracts
will  depend  in  part on  the  degree to  which  price movements  in  the index
underlying the financial futures contract correlate with the price movements  of
the   Municipal   Bonds   held   by   the   Fund.   The   correlation   may   be

                                       11
<PAGE>
affected by disparities in  the average maturity,  ratings, geographical mix  or
structure  of  the  Fund's  investments  as  compared  to  those  comprising the
Municipal Bond Index, and  general economic or  political factors. In  addition,
the  correlation between movements in the value  of the Municipal Bond Index may
be subject to change over time as additions to and deletions from the  Municipal
Bond  Index alter  its structure. The  correlation between  futures contracts on
U.S. Government  securities and  the Municipal  Bonds held  by the  Fund may  be
adversely  affected by  similar factors  and the  risk of  imperfect correlation
between movements in the prices of such futures contracts and the prices of  the
Municipal Bonds held by the Fund may be greater.

    The  Fund expects to liquidate a majority of the futures contracts it enters
into through offsetting  transactions on the  applicable contract market.  There
can  be no assurance, however, that a liquid secondary market will exist for any
particular futures contract at any specific  time. Thus, it may not be  possible
to  close out a futures  position. In the event  of adverse price movements, the
Fund would continue  to be  required to make  daily cash  payments of  variation
margin.  In  such situations,  if  the Fund  has  insufficient cash,  it  may be
required  to  sell   portfolio  securities  to   meet  daily  variation   margin
requirements at a time when it may be disadvantageous to do so. The inability to
close  out futures  positions also  could have an  adverse impact  on the Fund's
ability to hedge effectively its investments  in Municipal Bonds. The Fund  will
enter  into a futures  position only if,  in the judgment  of the Manager, there
appears to be an actively traded secondary market for such futures contracts.

    The successful  use of  transactions  in futures  and related  options  also
depends  on the ability of  the Manager to forecast  correctly the direction and
extent of  interest rate  movements within  a given  time frame.  To the  extent
interest  rates remain stable during  the period in which  a futures contract or
option is held by the  Fund or such rates move  in a direction opposite to  that
anticipated, the Fund may realize a loss on the hedging transaction which is not
fully  or partially offset by an increase  in the value of portfolio securities.
As a result, the Fund's total return for such period may be less than if it  had
not engaged in the hedging transaction.

    Because  of low  initial margin  deposits made on  the opening  of a futures
position, futures  transactions  involve  substantial  leverage.  As  a  result,
relatively  small movements in the price of  the futures contracts can result in
substantial unrealized gains  or losses.  Because the  Fund will  engage in  the
purchase and sale of futures contracts solely for hedging purposes, however, any
losses  incurred  in connection  therewith should,  if  the hedging  strategy is
successful, be  offset  in  whole or  in  part  by increases  in  the  value  of
securities  held by the  Fund or decreases  in the price  of securities the Fund
intends to acquire.

    The amount of risk the Fund assumes when it purchases an option on a futures
contract is the premium paid for  the option plus related transaction costs.  In
addition  to the correlation risks discussed above, the purchase of an option on
a futures  contract also  entails the  risk that  changes in  the value  of  the
underlying  futures contract  will not  be reflected fully  in the  value of the
option purchased.

    Municipal Bond Index futures contracts have only recently been approved  for
trading  and therefore have little trading  history. It is possible that trading
in such  futures  contracts will  be  less liquid  than  that in  other  futures
contracts.  The trading of  futures contracts also is  subject to certain market
risks, such  as  inadequate trading  activity,  which  could at  times  make  it
difficult or impossible to liquidate existing positions.

                                       12
<PAGE>
                            INVESTMENT RESTRICTIONS

   
    CURRENT  INVESTMENT RESTRICTIONS. In addition to the investment restrictions
set forth in the Prospectus, the Trust has adopted a number of restrictions  and
policies  relating to the investment of its assets and its activities, which are
fundamental policies and may not be changed without the approval of the  holders
of  a  majority of  the  Fund's outstanding  voting  securities (which  for this
purpose and under the 1940 Act means the lesser of (i) 67% of the Fund's  shares
present  at a meeting  at which more than  50% of the  outstanding shares of the
Fund are represented or  (ii) more than 50%  of the Fund's outstanding  shares).
The  Fund may not (1) purchase any  securities other than securities referred to
under "Investment Objective and Policies" herein and in the Prospectus; (2) with
respect to 75% of its total assets,  invest in the securities of any one  issuer
if,  immediately after  and as  a result  of such  investment, the  value of the
holdings of the Fund in the securities  of such issuer exceeds 5% of the  Fund's
total  assets, taken  at market  value, except  that such  restriction shall not
apply to securities issued or  guaranteed by the U.S.  Government or any of  its
agencies  or instrumentalities [For purposes of  this restriction, the Fund will
regard each state and each  political subdivision, agency or instrumentality  of
such  state and each multi-state agency of which such state is a member and each
public authority which  issues securities  on behalf of  a private  entity as  a
separate  issuer, except that if  the security is backed  only by the assets and
revenues  of  a  non-government  entity  then  the  entity  with  the   ultimate
responsibility  for the payment of interest and principal may be regarded as the
sole issuer.]; (3) invest  more than 25%  of its total  assets (taken at  market
value at the time of each investment) in securities of issuers in any particular
industry (other than U.S. Government securities or Government agency securities,
Municipal  Bonds); (4) invest more than 5%  of its total assets (taken at market
value at the  time of  each investment) in  industrial revenue  bonds where  the
entity  supplying the revenues  from which the  issuer is to  be paid, including
predecessors, has  a record  of less  than three  years of  continuous  business
operation;  (5)  make  investments  for the  purpose  of  exercising  control or
management; (6) purchase  securities of  other investment  companies, except  in
connection  with  a merger,  consolidation,  acquisition or  reorganization, and
provided further, that the Fund may purchase securities of closed-end investment
companies  if  immediately  thereafter  not  more  than  (i)  3%  of  the  total
outstanding  voting stock of such  company is owned by the  Fund, (ii) 5% of the
Fund's total assets, taken at  market value, would be  invested in any one  such
company,  or (iii) 10% of the Fund's  total assets, taken at market value, would
be invested in such securities; (7) purchase or sell real estate (provided  that
such  restriction  shall  not apply  to  securities  secured by  real  estate or
interests therein  or  issued  by  companies which  invest  in  real  estate  or
interests therein), commodities or commodity contracts (except that the Fund may
purchase  and sell financial futures contracts),  or interests or leases in oil,
gas or  other mineral  exploration  or development  programs; (8)  purchase  any
securities  on  margin,  except  for  use  of  short-term  credit  necessary for
clearance of purchases and sales of portfolio securities (the deposit or payment
by the Fund of initial or variation margin in connection with financial  futures
contracts  is not  considered the  purchase of a  security on  margin); (9) make
short sales of securities or maintain a  short position or invest in put,  call,
straddle  or  spread options  (this  restriction does  not  apply to  options on
financial futures contracts); (10)  make loans to  other persons, provided  that
the  Fund  may purchase  a portion  of  an issue  of tax-exempt  securities (the
acquisition of  a  portion  of  an issue  of  tax-exempt  securities  or  bonds,
debentures  or  other  debt securities  which  are not  publicly  distributed is
considered to be the making of a  loan under the 1940 Act) and provided  further
that  investments in repurchase agreements and purchase and sale contracts shall
not be deemed to be the making of  a loan; (11) borrow amounts in excess of  20%
of  its total assets, taken at market value (including the amount borrowed), and
then only from
    

                                       13
<PAGE>
banks as a temporary  measure for extraordinary  or emergency purposes  [Usually
only  "leveraged"  investment companies  may  borrow in  excess  of 5%  of their
assets; however, the Fund will  not borrow to increase  income but only to  meet
redemption  requests  which  might  otherwise  require  untimely  disposition of
portfolio securities. The Fund will not purchase securities while borrowings are
outstanding. Interest paid  on such  borrowings will reduce  net income.];  (12)
mortgage,  pledge,  hypothecate  or  in  any  manner  transfer  as  security for
indebtedness any securities owned or held by the Fund except as may be necessary
in connection with borrowings mentioned in (11) above, and then such mortgaging,
pledging or  hypothecating may  not exceed  10% of  its total  assets, taken  at
market  value, or except as may be  necessary in connection with transactions in
financial futures contracts; (13) invest in securities with legal or contractual
restrictions on resale or  for which no readily  available market exists, or  in
individually  negotiated loans  that constitute  illiquid investments  and lease
obligations, or in repurchase agreements or purchase and sale contracts maturing
in more than seven days, if, regarding all such securities, more than 10% of its
net assets (taken at  market value), would be  invested in such securities;  and
(14) act as an underwriter of securities, except to the extent that the Fund may
technically be deemed an underwriter when engaged in the activities described in
(13)  above  or insofar  as  the Fund  may be  deemed  an underwriter  under the
Securities Act of 1933, as amended, in selling portfolio securities.

   
    PROPOSED UNIFORM  INVESTMENT RESTRICTIONS.  As discussed  in the  Prospectus
under "Investment Objectives and Policies -- Investment Restrictions", the Board
of  Trustees of  the Fund  has approved the  replacement of  the Fund's existing
investment restrictions  with  the fundamental  and  non-fundamental  investment
restrictions  set forth below.  These uniform investment  restrictions have been
proposed for adoption by all of the non-money market mutual funds advised by the
Manager or its affiliate,  Merrill Lynch Asset Management,  L. P. ("MLAM").  The
investment objective and policies of the Fund will be unaffected by the adoption
of the proposed investment restrictions.
    

   
    Shareholders  of the Fund  are currently considering  whether to approve the
proposed revised  investment  restrictions.  If  such  shareholder  approval  is
obtained,  the Fund's  current investment restrictions  will be  replaced by the
proposed restrictions, and  the Fund's  Prospectus and  Statement of  Additional
Information will be supplemented to reflect such change.
    

   
    Under the proposed fundamental investment restrictions, the Fund may not:
    

   
        1.  Make any investment inconsistent with the Fund's classification as a
    diversified company under the 1940 Act.
    

   
        2.   Invest more than  25% of its assets, taken  at market value, in the
    securities of  issuers  in  any  particular  industry  (excluding  the  U.S.
    Government and its agencies and instrumentalities).
    

   
        3.     Make  investments  for  the  purpose  of  exercising  control  or
    management.
    

   
        4.  Purchase or sell real  estate, except that, to the extent  permitted
    by  applicable law, the Fund may invest in securities directly or indirectly
    secured by real  estate or interests  therein or issued  by companies  which
    invest in real estate or interests therein.
    

   
        5.   Make loans to other persons,  except that the acquisition of bonds,
    debentures or other corporate debt  securities and investment in  government
    obligations,  commercial  paper, pass-through  instruments,  certificates of
    deposit,  bankers  acceptances,   repurchase  agreements   or  any   similar
    instruments  shall not  be deemed  to be  the making  of a  loan, and except
    further that the Fund may lend its
    

                                       14
<PAGE>
   
    portfolio securities, provided that the lending of portfolio securities  may
    be  made only in accordance with applicable law and the guidelines set forth
    in the Fund's Prospectus  and Statement of  Additional Information, as  they
    may be amended from time to time.
    

   
        6.   Issue senior  securities to the extent  such issuance would violate
    applicable law.
    

   
        7.  Borrow money,  except that (i)  the Fund may  borrow from banks  (as
    defined  in the  1940 Act)  in amounts  up to  33 1/3%  of its  total assets
    (including the  amount  borrowed),  (ii)  the  Fund  may  borrow  up  to  an
    additional 5% of its total assets for temporary purposes, (iii) the Fund may
    obtain  such  short-term credit  as may  be necessary  for the  clearance of
    purchases and sales of portfolio securities  and (iv) the Fund may  purchase
    securities on margin to the extent permitted by applicable law. The Fund may
    not pledge its assets other than to secure such borrowings or, to the extent
    permitted  by the Fund's investment policies  as set forth in its Prospectus
    and Statement of Additional Information, as they may be amended from time to
    time, in connection with hedging transactions, short sales, when-issued  and
    forward commitment transactions and similar investment strategies.
    

   
        8.   Underwrite securities  of other issuers except  insofar as the Fund
    technically may be deemed an underwriter  under the Securities Act of  1933,
    as amended (the "Securities Act") in selling portfolio securities.
    

   
        9.   Purchase or sell commodities or contracts on commodities, except to
    the extent that the Fund may do so in accordance with applicable law and the
    Fund's Prospectus and Statement  of Additional Information,  as they may  be
    amended  from  time to  time, and  without registering  as a  commodity pool
    operator under the Commodity Exchange Act.
    

   
    Under the  proposed non-fundamental  investment restrictions,  the Fund  may
not:
    

   
        a.   Purchase  securities of other  investment companies,  except to the
    extent such purchases are permitted by applicable law.
    

   
        b.  Make short sales of securities or maintain a short position,  except
    to  the  extent permitted  by applicable  law. The  Fund currently  does not
    intend to engage in short sales, except short sales "against the box".
    

   
        c.  Invest in securities which cannot be readily resold because of legal
    or contractual restrictions or which cannot otherwise be marketed,  redeemed
    or  put to the issuer or  a third party, if at  the time of acquisition more
    than 15% of  its total  assets would be  invested in  such securities.  This
    restriction  shall not apply to securities which mature within seven days or
    securities which the Board of Trustees of the Fund has otherwise  determined
    to  be liquid pursuant to applicable law. Notwithstanding the 15% limitation
    herein, to the extent the laws of  any state in which the Fund's shares  are
    registered  or qualified for sale require  a lower limitation, the Fund will
    observe such limitation. As of the date hereof, therefore, the Fund will not
    invest more than 10% of its total assets in securities which are subject  to
    this investment restriction (c).
    

   
        d.   Invest in warrants if, at  the time of acquisition, its investments
    in warrants, valued at the lower of cost or market value, would exceed 5% of
    the   Fund's   assets;   included   within   such   limitation,   but    not
    

                                       15
<PAGE>
   
    to  exceed 2% of the Fund's net assets, are warrants which are not listed on
    the New York Stock  Exchange or American Stock  Exchange or a major  foreign
    exchange. For purposes of this restriction, warrants acquired by the Fund in
    units or attached to securities may be deemed to be without value.
    

   
        e.   Invest  in securities of  companies having a  record, together with
    predecessors, of less than three years of continuous operation, if more than
    5% of the  Fund's total assets  would be invested  in such securities.  This
    restriction  shall  not  apply to  mortgage-backed  securities, asset-backed
    securities or obligations issued or  guaranteed by the U.S. Government,  its
    agencies or instrumentalities.
    

   
        f.  Purchase or retain the securities of any issuer, if those individual
    officers  and trustees of the Fund, the  officers and general partner of the
    Investment Adviser, the directors  of such general  partner or the  officers
    and  directors of any subsidiary thereof  each owning beneficially more than
    one-half of  one  percent  of the  securities  of  such issuer  own  in  the
    aggregate more than 5% of the securities of such issuer.
    

   
        g.   Invest in real estate limited partnership interests or interests in
    oil, gas or other  mineral leases, or  exploration or development  programs,
    except  that  the Fund  may invest  in securities  issued by  companies that
    engage in oil, gas or other mineral exploration or development activities.
    

   
        h.    Write,  purchase  or  sell  puts,  calls,  straddles,  spreads  or
    combinations   thereof,  except  to  the  extent  permitted  in  the  Fund's
    Prospectus and Statement of Additional  Information, as they may be  amended
    from time to time.
    

   
        i.  Notwithstanding fundamental investment restriction (7) above, borrow
    amounts  in  excess  of 20%  of  its  total assets,  taken  at  market value
    (including the amount  borrowed), and then  only from banks  as a  temporary
    measure  for extraordinary or emergency purposes. In addition, the Fund will
    not purchase securities while borrowings are outstanding.
    

    Because of  the  affiliation  of  Merrill  Lynch,  Pierce,  Fenner  &  Smith
Incorporated  ("Merrill  Lynch") with  the Trust,  the  Fund is  prohibited from
engaging in certain  transactions permitted  under the 1940  Act involving  only
usual  and customary commissions or transactions  pursuant to an exemptive order
under the  1940  Act.  Included  among  such  restricted  transactions  will  be
purchases  from or sales to Merrill Lynch of securities in transactions in which
it acts as principal. See "Portfolio Transactions". An exemptive order has  been
obtained  which permits the Trust to  effect principal transactions with Merrill
Lynch in high quality, short-term,  tax-exempt securities subject to  conditions
set forth in such order.

                            MANAGEMENT OF THE TRUST

TRUSTEES AND OFFICERS

   
    The  Trustees  and  executive  officers of  the  Trust  and  their principal
occupations for  at  least the  last  five years  are  set forth  below.  Unless
otherwise  noted, the address of each Trustee  and executive officer is P.O. Box
9011, Princeton, New Jersey 08543-9011.
    

   
    ARTHUR  ZEIKEL  --  PRESIDENT  AND  TRUSTEE(1)(2)  --  President  and  Chief
Investment  Officer  of the  Manager  (which term  as  used herein  includes the
Manager's corporate predecessors) since 1977;  President of MLAM (which term  as
used  herein  includes  MLAM's  corporate  predecessors)  since  1977  and Chief
Investment Officer  thereof  since 1976;  President  and Director  of  Princeton
Services, Inc. ("Princeton
    

                                       16
<PAGE>
   
Services")  since 1993;  Executive Vice President  of Merrill Lynch  & Co., Inc.
("ML & Co.") since  1990; Executive Vice President  of Merrill Lynch since  1990
and a Senior Vice President thereof from 1985 to 1990; Director of Merrill Lynch
Funds Distributor, Inc. ("MLFD" or the "Distributor").
    

   
    KENNETH  S. AXELSON -- TRUSTEE(2) --  75 Jameson Point Road, Rockland, Maine
04841. Executive Vice President  and Director, J.C.  Penney Company, Inc.  until
1982;  Director,  UNUM Corporation,  Protection  Mutual Insurance  Company, and,
until 1994,  Grumman Corporation  and  Zurn Industries,  Inc. and,  until  1992,
Central Maine Power Company and Key Trust Company of Maine; Trustee, The Chicago
Dock and Canal Trust.
    

   
    HERBERT  I. LONDON -- TRUSTEE(2) --  113-115 University Place, New York, New
York 10003. Dean, Gallatin Division of New York University from 1978 to 1993 and
Director from 1975 to 1976; Professor,  New York University since 1973; John  M.
Olin  Professor  of Humanities,  New York  University since  1993; Distinguished
Fellow, Herman Kahn Chair, Hudson Institute  from 1984 to 1985; Trustee,  Hudson
Naval  Institute since  1980; Overseer, Center  for Naval Analyses  from 1983 to
1993; Director, Damon Corporation since 1991.
    

   
    ROBERT R. MARTIN -- TRUSTEE(2) -- 513 Grand Hill, St. Paul, Minnesota 55102.
Chairman, WTC Industries, Inc. since 1994; Chairman and Chief Executive Officer,
Kinnard Investments,  Inc. from  1990 to  1993; Executive  Vice President,  Dain
Bosworth  from 1974 to 1989; Director,  Carnegie Capital Management from 1977 to
1985 and Chairman  thereof in  1979; Director,  Securities Industry  Association
from  1981 to 1982 and Public Securities Association from 1979 to 1980; Trustee,
Northland College since 1992.
    

    JOSEPH L. MAY  -- TRUSTEE(2) --  424 Church Street,  Suite 2000,  Nashville,
Tennessee  37219. Attorney  in private practice  since 1984;  President, May and
Athens Hosiery Mills Division, Wayne-Gossard Corporation from 1954 to 1983; Vice
President, Wayne-Gossard  Corporation  from  1972 to  1983;  Chairman,  The  May
Corporation  (personal  holding company)  from  1972 to  1983;  Director, Signal
Apparel Co. from 1972 to 1989.

   
    ANDRE F.  PEROLD  -- TRUSTEE(2)  --  Morgan Hall,  Soldiers  Field,  Boston,
Massachusetts  02613. Professor, Harvard Business School and Associate Professor
from 1983  to 1989;  Trustee, The  Common Fund,  since 1989;  Director,  Quantec
Limited since 1991 and Teknekron Software Systems since 1994.
    

   
    TERRY K. GLENN -- EXECUTIVE VICE PRESIDENT(1)(2) -- Executive Vice President
of  the Manager and  MLAM since 1983;  Executive Vice President  and Director of
Princeton Services since 1993; President of MLFD since 1986 and Director thereof
since 1991.
    

   
    VINCENT R.  GIORDANO  --  VICE  PRESIDENT  AND  PORTFOLIO  MANAGER(1)(2)  --
Portfolio  Manager of the Manager and MLAM  since 1977 and Senior Vice President
of the Manager and MLAM  since 1984; Vice President of  MLAM from 1980 to  1984;
Senior Vice President of Princeton Services since 1993.
    

    KENNETH  A.  JACOB --  VICE PRESIDENT  AND  PORTFOLIO MANAGER(1)(2)  -- Vice
President of the Manager MLAM since 1984.

   
    DONALD C. BURKE --  VICE PRESIDENT(1)(2) -- Vice  President and Director  of
Taxation  of MLAM  since 1990; Employee  of Deloitte  & Touche LLP  from 1982 to
1990.
    

                                       17
<PAGE>
   
    GERALD  M. RICHARD -- TREASURER(1)(2) -- Vice President and Treasurer of the
Manager and MLAM since  1984; Senior Vice President  and Treasurer of  Princeton
Services  since 1993; Treasurer of the Distributor since 1984 and Vice President
since 1981.
    

    JERRY WEISS  --  SECRETARY(1)(2)  --  Vice President  of  MLAM  since  1990;
Attorney in private practice from 1982 to 1990.
- ---------
(1) Interested person, as defined in the 1940 Act, of the Trust.

(2) Such Trustee or officer is a director or officer of certain other investment
    companies  for  which the  Manager  or MLAM  acts  as investment  adviser or
    manager.

   
    At September 30, 1994, the Trustees and officers of the Trust as a group (12
persons) owned an aggregate of less than 1% of the outstanding shares of  Common
Stock  of ML &  Co. and owned  an aggregate of  less than 1%  of the outstanding
shares of the Fund.
    

   
    The Trust pays each Trustee not affiliated  with ML & Co. or its  affiliates
an  annual fee of $10,000 for serving as  a Trustee plus $1,000 for each meeting
of the  Board  attended. The  Trust  also pays  each  member of  the  Audit  and
Nominating Committee, which consists of the unaffiliated Trustees, an annual fee
of $2,000 plus $500 per meeting attended. The Trust reimburses each unaffiliated
Trustee  for  his out-of-pocket  expenses relating  to  attendance at  Board and
Committee  meetings.  Fees  and  expenses  paid  to  the  unaffiliated  Trustees
aggregated $4,715 for the year ended July 31, 1994.
    

MANAGEMENT AND ADVISORY ARRANGEMENTS

    Reference  is made  to "Management of  the Trust --  Management and Advisory
Arrangements"  in  the  Prospectus   for  certain  information  concerning   the
management and advisory arrangements of the Fund.

    Securities  may be held by,  or be appropriate investments  for, the Fund as
well as  other  funds or  investment  advisory clients  of  the Manager  or  its
affiliates.  Because  of different  objectives  or other  factors,  a particular
security may be  bought for one  or more clients  when one or  more clients  are
selling  the same security. If  the Manager or its  affiliate purchases or sells
securities for the  Fund or other  funds for which  they act as  manager or  for
their advisory clients and such sales or purchases arise for consideration at or
about  the same time, transactions  in such securities will  be made, insofar as
feasible, for the respective funds and  clients in a manner deemed equitable  to
all.  To the extent that  transactions on behalf of more  than one client of the
Manager or its  affiliates during the  same period may  increase the demand  for
securities  being purchased or the supply of securities being sold, there may be
an adverse effect on price.

    Pursuant to a management agreement between  the Trust on behalf of the  Fund
and  the  Manager (the  "Management Agreement"),  the  Manager receives  for its
services to  the Fund  monthly compensation  based upon  the average  daily  net
assets of the Fund at the following annual rates: 0.55% of the average daily net
assets  not  exceeding $500  million;  0.525% of  the  average daily  net assets
exceeding $500 million but not exceeding $1.0 billion; and 0.50% of the  average
daily  net  assets exceeding  $1.0  billion. For  the  period November  29, 1991
(commencement of operations) through July 31, 1992, the Fund's fiscal year  end,
the  total advisory  fees paid  by the Fund  to the  Manager aggregated $226,878
(based on average net assets of  approximately $60.9 million). For that  period,
the  Manager  reimbursed  the  Fund  for operating  expenses  in  the  amount of
$305,285. For the year ended July 31, 1993, the total advisory fees paid by  the
Fund to the

                                       18
<PAGE>
   
Manager  aggregated $471,916  of which $344,132  was waived. For  the year ended
July 31,  1994,  the  total advisory  fees  paid  by the  Fund  to  the  Manager
aggregated $566,701 of which $239,468 was voluntarily waived.
    

   
    The  State of California imposes limitations on the expenses of the Fund. At
the date  of this  Statement  of Additional  Information, these  annual  expense
limitations  require that the Manager reimburse  the Fund in an amount necessary
to prevent the aggregate ordinary operating expenses (excluding taxes, brokerage
fees and  commissions,  distribution  fees and  extraordinary  charges  such  as
litigation  costs) from exceeding  in any fiscal  year 2.5% of  the Fund's first
$30,000,000 of average net assets, 2.0%  of the next $70,000,000 of average  net
assets and 1.5% of the remaining average net assets. The Manager's obligation to
reimburse  the Fund is limited to the amount of the management fee. Expenses not
covered by this limitation are interest, taxes, brokerage commissions and  other
items  such as extraordinary legal expenses. No  fee payment will be made to the
Manager during any fiscal year which will cause such expenses to exceed  expense
limitations  at the time of such payment. No fee reimbursements were made during
the period November 29, 1991, the Fund's commencement of operations, to July 31,
1992, the Fund's fiscal year  end, or during the years  ended July 31, 1993  and
1994 pursuant to these operating expense limitations.
    

   
    The  Management  Agreement  obligates  the  Manager  to  provide  investment
advisory services and to  pay all compensation of  and furnish office space  for
officers  and  employees of  the Trust  connected  with investment  and economic
research, trading and investment management of the Trust, as well as the fees of
all Trustees of the Trust  who are affiliated persons of  the Manager or any  of
its subsidiaries. The Fund pays all other expenses incurred in its operation and
if  other Series  shall be  added ("Series"), a  portion of  the Trust's general
administrative expenses  allocated  on  the  basis of  the  asset  size  of  the
respective  Series. Expenses that will be  borne directly by the Series include,
among other  things, redemption  expenses, expenses  of portfolio  transactions,
expenses  of registering  the shares  under Federal  and state  securities laws,
pricing costs (including the daily calculation of net asset value), expenses  of
printing   shareholder  reports,  prospectuses   and  statements  of  additional
information (except to the extent paid  by the Distributor as described  below),
fees  for legal and auditing services, Commission fees, interest, certain taxes,
and other expenses attributable to a  particular Series. Expenses which will  be
allocated  on the basis of asset size  of the respective Series include fees and
expenses of  unaffiliated Trustees,  state franchise  taxes, costs  of  printing
proxies  and other expenses related to  shareholder meetings, and other expenses
properly payable by  the Trust. The  organizational expenses of  the Trust  were
paid  by  the  Trust, and  if  additional Series  are  added to  the  Trust, the
organizational expenses will be allocated among the Series (including the  Fund)
in  a manner deemed  equitable by the  Trustees. Depending upon  the nature of a
lawsuit, litigation costs may  be assessed to the  specific Series to which  the
lawsuit  relates or allocated on  the basis of the  asset size of the respective
Series. The  Trustees have  determined that  this is  an appropriate  method  of
allocation  of expenses.  Accounting services  are provided  to the  Fund by the
Manager and the  Fund reimburses the  Manager for its  costs in connection  with
such services. For the year ended July 31, 1994, the Fund reimbursed the Manager
$48,042  for  accounting  services.  As  required  by  the  Fund's  distribution
agreements, the  Distributor  will pay  the  promotional expenses  of  the  Fund
incurred in connection with the offering of shares of the Fund. Certain expenses
will  be financed by the Fund pursuant to a Distribution Plan in compliance with
Rule 12b-1 under the 1940 Act. See "Purchase of Shares -- Distribution Plan".
    

   
    The Manager is a limited  partnership, the partners of  which are ML &  Co.,
Fund Asset Management, Inc. and Princeton Services, Inc.
    

                                       19
<PAGE>
   
    DURATION AND TERMINATION. Unless earlier terminated as described herein, the
Management  Agreement  will  remain in  effect  from  year to  year  if approved
annually (a) by the Trustees  of the Trust or by  a majority of the  outstanding
shares  of the Fund and (b) by a majority of the Trustees who are not parties to
such contract or interested  persons (as defined  in the 1940  Act) of any  such
party.  Such contracts are not assignable  and may be terminated without penalty
on 60 days' written notice at the option  of either party thereto or by vote  of
the shareholders of the Fund.
    

                               PURCHASE OF SHARES

    Reference  is made  to "Purchase  of Shares"  in the  Prospectus for certain
information as to the purchase of Fund shares.

   
    The Fund  issues four  classes  of shares  under  the Merrill  Lynch  Select
Pricing-SM- System: shares of Class A and Class D are sold to investors choosing
the  initial sales charge  alternatives, and shares  of Class B  and Class C are
sold to investors choosing the deferred sales charge alternatives. Each Class A,
Class B, Class C and Class D share of the Fund represents identical interests in
the investment portfolio of the Fund and has the same rights, except that  Class
B,  Class  C  and  Class D  shares  bear  the expenses  of  the  ongoing account
maintenance fees,  and Class  B and  Class C  shares bear  the expenses  of  the
ongoing  distribution fees and the  additional incremental transfer agency costs
resulting from the  deferred sales  charge arrangements.  Class B,  Class C  and
Class  D shares each have exclusive voting rights with respect to the Rule 12b-1
distribution plan adopted with respect to  such class pursuant to which  account
maintenance and/or distribution fees are paid. Each class has different exchange
privileges. See "Shareholder Services -- Exchange Privilege".
    

   
    The  Merrill Lynch Select Pricing-SM- System is  used by more than 50 mutual
funds advised by MLAM or  its affiliate, the Manager.  Funds advised by MLAM  or
the Manager are referred to herein as "MLAM-advised mutual funds".
    

   
    The  Fund has  entered into four  separate distribution  agreements with the
Distributor in connection with the continuous  offering of each class of  shares
of  the  Fund  (the  "Distribution  Agreements").  The  Distribution  Agreements
obligate the Distributor to pay certain expenses in connection with the offering
of each  class of  shares of  the Fund.  After the  prospectuses, statements  of
additional  information and periodic reports have been prepared, set in type and
mailed to shareholders, the Distributor  pays for the printing and  distribution
of  copies  thereof  used  in  connection  with  the  offering  to  dealers  and
prospective investors. The Distributor also  pays for other supplementary  sales
literature and advertising costs. The Distribution Agreements are subject to the
same renewal requirements and termination provisions as the Management Agreement
described above.
    

   
INITIAL SALES CHARGE ALTERNATIVES--CLASS A AND CLASS D SHARES
    
   
    The  Fund commenced the public  offering its Class A  shares on November 29,
1991. The gross  sales charges for  the sale of  Class A shares  for the  period
November  29, 1991 through July 31, 1992  were $99,573, of which the Distributor
received $10,934 and Merrill Lynch received $88,639. The gross sales charges for
the sale of Class A shares for the fiscal year ended July 31, 1993 were $95,274,
of which the Distributor received $9,271 and Merrill Lynch received $86,003. The
gross sales charges for  the sale of  Class A shares for  the fiscal year  ended
July 31, 1994 were $82,434, of which the Distributor received $6,133 and Merrill
Lynch received $76,301.
    

   
    The  term  "purchase",  as used  in  the  Prospectus and  this  Statement of
Additional Information in connection with an  investment in Class A and Class  D
shares    of    the    Fund,   refers    to    a   single    purchase    by   an
    

                                       20
<PAGE>
individual, or to  concurrent purchases,  which in  the aggregate  are at  least
equal to the prescribed amounts, by an individual, his spouse and their children
under  the age of 21 years purchasing shares for his or their own account and to
single purchases by a trustee or other fiduciary purchasing shares for a  single
trust  estate or single fiduciary account  although more than one beneficiary is
involved. The term "purchase" also includes purchases by any "company", as  that
term  is defined  in the 1940  Act, but does  not include purchases  by any such
company which has not been in existence for at least six months or which has  no
purpose  other  than the  purchase  of shares  of the  Fund  or shares  of other
registered investment companies at a discount; provided, however, that it  shall
not  include purchases  by any  group of  individuals whose  sole organizational
nexus is that  the participants  therein are  credit cardholders  of a  company,
policyholders   of  an  insurance  company,  customers   of  either  a  bank  or
broker-dealer or clients of an investment adviser.

   
    CLOSED-END FUND INVESTMENT  OPTION. Class  A shares  of the  Fund and  other
MLAM-advised  mutual funds ("Eligible Class A  shares") are offered at net asset
value to shareholders of certain closed-end funds advised by the Manager or MLAM
who purchased such closed-end fund shares prior to October 21, 1994 and wish  to
reinvest  the net proceeds of  a sale of their  closed-end fund shares of common
stock in Eligible
Class A shares, if the conditions set forth below are satisfied.  Alternatively,
closed-end  fund shareholders who purchased such  shares on or after October 21,
1994 and wish to reinvest the net proceeds from a sale of their closed-end  fund
shares are offered Class A shares (if eligible to buy Class A shares) or Class D
shares  of  the Fund  and  other MLAM-advised  mutual  funds ("Eligible  Class D
shares"), if the  following conditions are  met. First, the  sale of  closed-end
fund  shares must be made through Merrill  Lynch, and the net proceeds therefrom
must be immediately reinvested  in Eligible Class A  or Class D shares.  Second,
the  closed-end fund shares must either have been acquired in the initial public
offering or  be  shares  representing  dividends from  shares  of  common  stock
acquired  in such  offering. Third,  the closed-end  fund shares  must have been
continuously maintained in  a Merrill  Lynch securities  account. Fourth,  there
must  be a minimum  purchase of $250  to be eligible  for the investment option.
Class A shares of  the Fund are  offered at net asset  value to shareholders  of
Merrill  Lynch Senior Floating Rate Fund, Inc. ("Senior Floating Rate Fund") who
wish to reinvest  the net proceeds  from a sale  of certain of  their shares  of
common  stock of Senior  Floating Rate Fund in  shares of the  Fund. In order to
exercise this investment  option, Senior  Floating Rate  Fund shareholders  must
sell  their Senior Floating Rate Fund shares to the Senior Floating Rate Fund in
connection with a tender  offer conducted by the  Senior Floating Rate Fund  and
reinvest  the  proceeds  immediately  in the  Fund.  This  investment  option in
available only with respect to the proceeds of Senior Floating Rate Fund  shares
as  to which no Early Withdrawal Charge  (as defined in the Senior Floating Rate
Fund prospectus) is applicable. Purchase  orders from Senior Floating Rate  Fund
shareholders wishing to exercise this investment option will be accepted only on
the  day that the related Senior Floating  Rate Fund tender offer terminates and
will be effected at the net asset value of the Fund at such day.
    

   
REDUCED INITIAL SALES CHARGES
    

   
    RIGHT OF ACCUMULATION. Reduced sales charges are applicable through a  right
of  accumulation under which eligible investors are permitted to purchase shares
of the Fund subject to an initial sales charge at the offering price  applicable
to the total of (a) the public offering price of the shares then being purchased
plus  (b) an amount equal to the then current net asset value or cost, whichever
is higher, of the purchaser's combined holdings of all classes of shares of  the
Fund  and of other MLAM-advised mutual funds. For any such right of accumulation
to be made available, the Distributor must be provided at the time of  purchase,
by   the  purchaser  or  the  purchaser's  securities  dealer,  with  sufficient
information to permit confirmation of
    

                                       21
<PAGE>
   
qualification. Acceptance of the purchase order is subject to such confirmation.
The right of accumulation may be amended or terminated at any time. Shares  held
in  the name of  a nominee or  custodian under pension,  profit-sharing or other
employee benefit plans may not be combined with other shares to qualify for  the
right of accumulation.
    

   
    LETTER  OF  INTENTION. Reduced  sales  charges are  applicable  to purchases
aggregating $25,000 or more of the Class A or Class D shares of the Fund or  any
other  MLAM-advised mutual funds made within a 13-month period starting with the
first purchase pursuant to  a Letter of  Intention in the  form provided in  the
Prospectus.  The  Letter  of  Intention is  available  only  to  investors whose
accounts are maintained at the Fund's transfer agent. The Letter of Intention is
not available to employee  benefit plans for which  Merrill Lynch provides  plan
participant  record-keeping services. The  Letter of Intention  is not a binding
obligation to purchase any  amount of Class  A or Class  D shares; however,  its
execution  will  result in  the purchaser  paying  a lower  sales charge  at the
appropriate quantity purchase level. A purchase not originally made pursuant  to
a  Letter of Intention  may be included  under a subsequent  Letter of Intention
executed within  90 days  of such  purchase if  the Distributor  is informed  in
writing of this intent within such 90-day period. The value of Class A and Class
D  shares of the Fund and of  other MLAM-advised mutual funds presently held, at
cost or maximum offering price (whichever is  higher), on the date of the  first
purchase  under the Letter of Intention, may  be included as a credit toward the
completion of such Letter, but the reduced sales charge applicable to the amount
covered by such  Letter will  be applied  only to  new purchases.  If the  total
amount  of shares does  not equal the  amount stated in  the Letter of Intention
(minimum of $25,000), the investor will be notified and must pay, within 20 days
of the expiration of such Letter, the difference between the sales charge on the
Class A or Class  D shares purchased  at the reduced rate  and the sales  charge
applicable to the shares actually purchased through the Letter. Class A or Class
D  shares equal to at least five percent  of the intended amount will be held in
escrow during the 13-month period (while remaining registered in the name of the
purchaser) for this purpose.  The first purchase under  the Letter of  Intention
must be at least five percent of the dollar amount of such Letter. If a purchase
during  the term of such Letter would  otherwise be subject to a further reduced
sales charge based on the right of accumulation, the purchaser will be  entitled
on  that purchase  and subsequent purchases  to that  further reduced percentage
sales charge, but there will be no retroactive reduction of the sales charges on
any previous purchase. The value of any shares redeemed or otherwise disposed of
by the purchaser prior to termination  or completion of the Letter of  Intention
will  be deducted from the  total purchases made under  such Letter. An exchange
from a MLAM-advised money market fund into the Fund that creates a sales  charge
will  count toward  completing a  new or existing  Letter of  Intention from the
Fund.
    

   
    TMA-SM- MANAGED TRUSTS. Class A shares are offered to TMA-SM- Managed Trusts
to which Merrill Lynch Trust Company provides discretionary trustee services  at
net asset value.
    

   
    PURCHASE  PRIVILEGES OF CERTAIN  PERSONS._Trustees of the  Trust, members of
the Boards of other MLAM-advised  investment companies, directors and  employees
of ML & Co. and its subsidiaries (the term "subsidiaries", when used herein with
respect  to ML  & Co.,  includes MLAM,  the Manager  and certain  other entities
directly or indirectly wholly-owned and controlled by ML & Co.), and any  trust,
pension,  profit-sharing or  other benefit plan  for such  persons, may purchase
Class A shares of the Fund at net asset value.
    

   
    Class D shares of the Fund will be offered at net asset value, without sales
charge, to  an  investor  who  has a  business  relationship  with  a  financial
consultant  who joined  Merrill Lynch  from another  investment firm  within six
months prior  to  the  date of  purchase  by  such investor,  if  the  following
conditions are satisfied.
    

                                       22
<PAGE>
   
First,  the investor  must advise  Merrill Lynch that  it will  purchase Class D
shares of the Fund  with proceeds from  a redemption of a  mutual fund that  was
sponsored by the financial consultant's previous firm and was subject to a sales
charge  either  at the  time of  purchase or  on a  deferred basis.  Second, the
investor also must establish that such  redemption had been made within 60  days
prior  to the investment in  the Fund, and the  proceeds from the redemption had
been maintained in the interim in cash or a money market fund.
    

   
    Class D shares of the  Fund are also offered at  net asset value, without  a
sales  charge, to  an investor  who has a  business relationship  with a Merrill
Lynch financial consultant and who has invested in a mutual fund sponsored by  a
non-Merrill  Lynch  company for  which Merrill  Lynch has  served as  a selected
dealer and where  Merrill Lynch has  either received or  given notice that  such
arrangement  will  be terminated  ("notice"),  if the  following  conditions are
satisfied: First, the  investor must purchase  Class D shares  of the Fund  with
proceeds from a redemption of shares of such other mutual fund and such fund was
subject to a sales charge either at the time of purchase or on a deferred basis;
and,  second, such purchase of Class D shares  must be made within 90 days after
such notice.
    

   
    Class D shares of the  Fund are also offered at  net asset value, without  a
sales  charge, to  an investor  who has a  business relationship  with a Merrill
Lynch financial  consultant and  who has  invested in  a mutual  fund for  which
Merrill  Lynch has not served  as a selected dealer  if the following conditions
are satisfied:  First, the  investor  must advise  Merrill  Lynch that  it  will
purchase  Class D shares of  the Fund with proceeds  from the redemption of such
shares of other mutual funds  and that such shares  have been outstanding for  a
period  of no less than six months. Second, such purchase of Class D shares must
be made within 60 days after the redemption and the proceeds from the redemption
must be maintained in the interim in cash or a money market fund.
    

   
    ACQUISITION OF CERTAIN  INVESTMENT COMPANIES. The  public offering price  of
Class  D shares  may be  reduced to  the net  asset value  per Class  D share in
connection with the acquisition of the assets of or merger or consolidation with
a personal holding company or a public or private investment company. The  value
of  the assets or company acquired in  a tax-free transaction may be adjusted in
appropriate cases to reduce possible adverse tax consequences to the Fund  which
might  result from an  acquisition of assets  having net unrealized appreciation
which is disproportionately higher at the time of acquisition than the  realized
or  unrealized appreciation  of the  Fund. The  issuance of  Class D  shares for
consideration other than cash is limited to bona fide reorganizations, statutory
mergers or  other  acquisitions  of  portfolio securities  which  (i)  meet  the
investment objectives and policies of the Fund; (ii) are acquired for investment
and  not for resale  (subject to the  understanding that the  disposition of the
Fund's portfolio securities shall at all  times remain within its control);  and
(iii)  are liquid securities, the value of which is readily ascertainable, which
are not restricted as to transfer either  by law or liquidity of market  (except
that  the  Fund may  acquire through  such  transactions restricted  or illiquid
securities to  the extent  the Fund  does not  exceed the  applicable limits  on
acquisition  of  such  securities  set  forth  under  "Investment  Objective and
Policies" herein).
    

   
    Reductions in or exemptions from the imposition  of a sales load are due  to
the nature of the investors and/or the reduced sales efforts that will be needed
in obtaining such investments.
    

                                       23
<PAGE>
   
DISTRIBUTION PLANS
    
   
    Reference  is  made to  "Purchase of  Shares --  Distribution Plans"  in the
Prospectus for certain  information with  respect to  the separate  distribution
plans  for Class B, Class C and Class  D shares pursuant to Rule 12b-1 under the
1940 Act (each a  "Distribution Plan") with respect  to the account  maintenance
and/or  distribution fees paid  by the Fund  to the Distributor  with respect to
such classes.
    

   
    Payments of  the  account  maintenance fees  and/or  distribution  fees  are
subject  to the provisions of Rule 12b-1 under the 1940 Act. Among other things,
each Distribution  Plan provides  that  the Distributor  shall provide  and  the
Trustees  shall  review quarterly  reports of  the  disbursement of  the account
maintenance  and/or  distribution  fees  paid  to  the  Distributor.  In   their
consideration  of each Distribution Plan, the Trustees must consider all factors
they deem relevant, including information as to the benefits of the Distribution
Plan to the Fund and its  related class of shareholders. Each Distribution  Plan
further  provides that, so long as the  Distribution Plan remains in effect, the
selection and nomination  of Trustees who  are not "interested  persons" of  the
Trust,  as  defined  in the  1940  Act  (the "Independent  Trustees"),  shall be
committed to  the discretion  of the  Independent Trustees  then in  office.  In
approving  each Distribution Plan in accordance with Rule 12b-1, the Independent
Trustees concluded that  there is reasonable  likelihood that such  Distribution
Plan  will  benefit  the  Fund  and  its  related  class  of  shareholders. Each
Distribution Plan can be terminated at any time, without penalty, by the vote of
a majority  of the  Independent Trustees  or by  the vote  of the  holders of  a
majority  of the outstanding related  class of voting securities  of the Fund. A
Distribution Plan cannot  be amended  to increase  materially the  amount to  be
spent by the Fund without the approval of the related class of shareholders, and
all  material amendments are  required to be  approved by the  vote of Trustees,
including a majority of the Independent Trustees who have no direct or  indirect
financial interest in such Distribution Plan, cast in person at a meeting called
for  that purpose. Rule 12b-1 further requires that the Trust preserve copies of
each Distribution Plan and any report made pursuant to such plan for a period of
not less than six years from the date of such Distribution Plan or such  report,
the first two years in an easily accessible place.
    

   
LIMITATIONS ON THE PAYMENT OF DEFERRED SALES CHARGES
    
   
    The  maximum sales charge rule in the Rules of Fair Practice of the National
Association of Securities Dealers, Inc. ("NASD") imposes a limitation on certain
asset-based sales  charges  such as  the  distribution fee  and  the  contingent
deferred  sales charge ("CDSC") borne by the Class  B and Class C shares but not
the account maintenance fee. The maximum sales charge rule is applied separately
to each class. As applicable to the  Fund, the maximum sales charge rule  limits
the  aggregate of distribution fee payments and CDSCs payable by the Fund to (1)
6.25% of eligible gross  sales of Class  B shares and  Class C shares,  computed
separately  (defined to exclude shares issued pursuant to dividend reinvestments
and exchanges),  plus (2)  interest on  the unpaid  balance for  the  respective
class,  computed separately, at the prime rate plus 1% (the unpaid balance being
the maximum  amount payable  minus  amounts received  from  the payment  of  the
distribution  fee and  the CDSC).  In connection  with the  Class B  shares, the
Distributor has  voluntarily agreed  to  waive interest  charges on  the  unpaid
balance  in excess of  0.50% of eligible gross  sales. Consequently, the maximum
amount payable to the  Distributor (referred to as  the "voluntary maximum")  in
connection  with  the Class  B  shares is  6.75%  of eligible  gross  sales. The
Distributor retains the right to stop waiving the interest charges at any  time.
To  the extent payments  would exceed the  voluntary maximum, the  Fund will not
make further payments of  the distribution fee with  respect to Class B  shares,
and  any CDSCs will be paid to the Fund rather than to the Distributor; however,
the   Fund    will    continue    to    make    payments    of    the    account
    

                                       24
<PAGE>
   
maintenance  fee. In  certain circumstances the  amount payable  pursuant to the
voluntary maximum may exceed the amount payable under the NASD formula. In  such
circumstances  payment in  excess of the  amount payable under  the NASD formula
will not be made.
    

   
    The following table sets forth comparative  information as of July 31,  1994
with  respect to the Class B shares of the Fund indicating the maximum allowable
payments that can  be made  under the  NASD maximum  sales charge  rule and  the
Distributor's  voluntary maximum for the  period September 4, 1990 (commencement
of the public offering of Class B shares) to July 31, 1994. Since Class C shares
of the Fund had not been publicly issued prior to the date of this Statement  of
Additional  Information,  information  concerning  Class  C  shares  is  not yet
provided below.
    

   
<TABLE>
<CAPTION>
                                                          DATA CALCULATED AS OF JULY 31, 1994 (IN THOUSANDS)
                                     --------------------------------------------------------------------------------------------
                                                                                                                      ANNUAL
                                               ALLOWABLE    ALLOWABLE                                              DISTRIBUTION
                                     ELIGIBLE  AGGREGATE   INTEREST ON   MAXIMUM  AMOUNTS PREVIOUSLY   AGGREGATE  FEE AT CURRENT
                                      GROSS      SALES       UNPAID      AMOUNT         PAID TO         UNPAID       NET ASSET
                                     SALES(1)   CHARGES    BALANCE(2)    PAYABLE    DISTRIBUTOR(3)      BALANCE      LEVEL(4)
                                     --------  ---------  -------------  -------  -------------------  ---------  ---------------
<S>                                  <C>       <C>        <C>            <C>      <C>                  <C>        <C>
Under NASD Rule as Adopted.........  $87,241   $  5,453       $770       $6,223          $908          $  5,315        $202
Under Distributor's Voluntary
 Waiver............................  $87,241   $  5,453       $436       $5,889          $908          $  4,981        $202
<FN>
- ------------
(1)  Purchase price of all eligible Class B shares sold since November 29,  1991
     (commencement  of  public offering  of Class  B  shares) other  than shares
     acquired through dividend reinvestment and the exchange privilege.
(2)  Interest is  computed on  a monthly  basis based  upon the  prime rate,  as
     reported in The Wall Street Journal, plus 1.0%, as permitted under the NASD
     Rule.
(3)  Consists  of CDSC payments, distribution fee  payments and accruals. Of the
     distribution fee payments made prior to  July 6, 1993 under the Prior  Plan
     at  the .50% rate, .25%  of average daily net assets  has been treated as a
     distribution fee and .25%  of average daily net  assets has been deemed  to
     have  been a service fee  and not subject to  the NASD maximum sales charge
     rule.
(4)  Provided  to  illustrate  the  extent   to  which  the  current  level   of
     distribution  fee payments (not including  any CDSC payments) is amortizing
     the unpaid  balance.  No  assurance  can be  given  that  payments  of  the
     distribution  fee  will  reach either  the  voluntary maximum  or  the NASD
     maximum.
</TABLE>
    

                              REDEMPTION OF SHARES

    Reference is made to  "Redemption of Shares" in  the Prospectus for  certain
information as to the redemption and repurchase of Fund shares.

    The  right to redeem shares  or to receive payment  with respect to any such
redemption may be suspended only for any period during which trading on the  New
York  Stock  Exchange is  restricted  as determined  by  the Commission  or such
Exchange is closed (other than customary weekend and holiday closings), for  any
period during which an emergency exists as defined by the Commission as a result
of  which disposal  of portfolio  securities or  determination of  the net asset
value of the Fund is not reasonably  practicable, and for such other periods  as
the  Commission may by  order permit for  the protection of  shareholders of the
Fund.

   
DEFERRED SALES CHARGE--CLASS B SHARES
    
   
    As discussed  in the  Prospectus under  "Purchase of  Shares --  Alternative
Sales  Arrangements -- Deferred Sales Charge Alternatives -- Class B and Class C
Shares", while Class B shares redeemed within
    

                                       25
<PAGE>
   
four years of purchase are subject  to a contingent deferred sales charge  under
most  circumstances,  the charge  is  waived on  redemptions  of Class  B shares
following the death  or disability  of a  Class B  shareholder. Redemptions  for
which  the waiver applies  are any partial or  complete redemption following the
death or disability (as defined in the Internal Revenue Code of 1986, as amended
(the "Code")) of  a Class  B shareholder  (including one  who owns  the Class  B
shares  as joint  tenant with  his or  her spouse),  provided the  redemption is
requested within one year of the  death or initial determination of  disability.
For  the period November 29, 1991  (commencement of operations) through July 31,
1993, the Distributor  received contingent deferred  sales charges of  $229,809,
all  of which was paid to  Merrill Lynch. For the year  ended July 31, 1994, the
Distributor received contingent deferred sales charges of $217,476, all of which
was paid to Merrill Lynch.
    

                             PORTFOLIO TRANSACTIONS

    Reference is made to "Investment Objective and Policies -- Other  Investment
Policies and Practices" in the Prospectus.

   
    Under  the 1940 Act,  persons affiliated with the  Trust are prohibited from
dealing with the  Fund as a  principal in  the purchase and  sale of  securities
unless  such trading is permitted by an exemptive order issued by the Securities
and  Exchange  Commission.  Since  over-the-counter  transactions  are   usually
principal  transactions,  affiliated  persons of  the  Trust,  including Merrill
Lynch, may not serve  as dealer in connection  with transactions with the  Fund.
The  Trust has obtained  an exemptive order  permitting it to  engage in certain
principal transactions  with Merrill  Lynch  involving high  quality  short-term
municipal  bonds subject to certain conditions. For the period November 29, 1991
(commencement of  operations) through  July 31,  1992, the  Fund engaged  in  no
transactions pursuant to such exemptive order. For the years ended July 31, 1993
and  1994 the Fund engaged in no transactions pursuant to such order. Affiliated
persons of  the Trust  may serve  as  broker for  the Fund  in  over-the-counter
transactions  conducted on an agency basis.  Certain court decisions have raised
questions as to the extent to which investment companies should seek  exemptions
under the 1940 Act in order to seek to recapture underwriting and dealer spreads
from  affiliated  entities.  The  Trustees have  considered  all  factors deemed
relevant, and have made a determination not to seek such recapture at this time.
The Trustees will reconsider this matter from time to time.
    

    Under  the  1940  Act,  the  Fund  may  not  purchase  securities  from  any
underwriting  syndicate of which Merrill Lynch is a member except pursuant to an
exemptive order or rules  adopted by the Commission.  Rule 10f-3 under the  1940
Act  sets forth conditions under which the  Fund may purchase municipal bonds in
such transactions. The  rule sets  forth requirements relating  to, among  other
things,  the terms  of an issue  of municipal  bonds purchased by  the Fund, the
amount of municipal bonds which may be purchased in any one issue and the assets
of the Fund which may be invested in a particular issue.

    The Fund does not expect  to use any particular  dealer in the execution  of
transactions but, subject to obtaining the best net results, dealers who provide
supplemental  investment  research  (such as  information  concerning tax-exempt
securities, economic  data and  market  forecasts) to  the Manager  may  receive
orders for transactions by the Fund. Information so received will be in addition
to and not in lieu of the services required to be performed by the Manager under
its Management Agreement and the expenses of the Manager will not necessarily be
reduced as a result of the receipt of such supplemental information.

                                       26
<PAGE>
   
    The  Trust has  no obligation to  deal with  any broker in  the execution of
transactions for the Fund's portfolio  securities. In addition, consistent  with
the  Rules of Fair Practice of the NASD and policies established by the Trustees
of the Trust the Manager may consider sales of shares of the Fund as a factor in
the selection of brokers  or dealers to execute  portfolio transactions for  the
Fund.
    

   
    Generally,  the  Fund does  not purchase  securities for  short-term trading
profits. However, the Fund may dispose of securities without regard to the  time
they  have been held when  such action, for defensive  or other reasons, appears
advisable to its  Manager. While it  is not possible  to predict turnover  rates
with  any  certainty,  at  present  it is  anticipated  that  the  Fund's annual
portfolio turnover rate, under normal  circumstances after the Fund's  portfolio
is invested in accordance with its investment objective, will be less than 100%.
(The  portfolio turnover rate is calculated  by dividing the lesser of purchases
or sales of portfolio securities for  the particular fiscal year by the  monthly
average  of the value of  the portfolio securities owned  by the Fund during the
particular fiscal year. For  purposes of determining  this rate, all  securities
whose  maturities at the time of acquisition are one year or less are excluded.)
The portfolio  turnover  for  the  period November  29,  1991  (commencement  of
operations)  through July 31,  1992, was 66.50%. The  portfolio turnover for the
fiscal year ended July 31, 1993, was 73.48%. The portfolio turnover rate for the
fiscal year ended July 31, 1994 was 53.35%.
    

   
    Section 11(a) of the Securities Exchange Act of 1934, as amended,  generally
prohibits  members  of the  U.S.  national securities  exchanges  from executing
exchange transactions for their affiliates and institutional accounts which they
manage unless the member (i) has  obtained prior express authorization from  the
account  to  effect  such transactions,  (ii)  at least  annually  furnishes the
account with a statement  setting forth the  aggregate compensation received  by
the member in effecting such transactions, and (iii) complies with any rules the
Commission  has prescribed with  respect to the requirements  of clauses (i) and
(ii). To the  extent Section  11(a) would  apply to  Merrill Lynch  acting as  a
broker  for the Fund in  any of its portfolio  transactions executed on any such
securities exchange of  which it  is a  member, appropriate  consents have  been
obtained  from the Fund and annual  statements as to aggregate compensation will
be provided to the Fund.
    

                        DETERMINATION OF NET ASSET VALUE

   
    The net asset  value of the  Fund is determined  once daily, Monday  through
Friday,  as of 4:15 P.M., New  York City time, on each  day during which the New
York Stock Exchange is open for trading. The New York Stock Exchange is not open
on New Year's Day, Presidents' Day, Good Friday, Memorial Day, Independence Day,
Labor Day, Thanksgiving  Day and  Christmas Day. Net  asset value  per share  is
computed  by dividing the  sum of the value  of the securities  held by the Fund
plus any cash  or other  assets minus  all liabilities  by the  total number  of
shares  outstanding  at  such  time,  rounded  to  the  nearest  cent. Expenses,
including the fees  payable to the  Manager and any  account maintenance  and/or
distribution fees, are accrued daily. The per share net asset value of the Class
B,  Class C and  Class D shares generally  will be lower than  the per share net
asset value of the Class A  shares reflecting the higher daily expense  accruals
of  the  account  maintenance,  distribution  and  higher  transfer  agency fees
applicable with respect to the Class B and Class C shares and the daily  expense
accruals  of the account maintenance fees applicable with respect to the Class D
shares; moreover, the per share net asset value of the Fund's Class B and  Class
C shares generally will be lower than the per share net asset value of its Class
D  shares, reflecting  the daily expense  accruals of the  distribution fees and
higher transfer agency fees applicable with respect  to the Class B and Class  C
shares
    

                                       27
<PAGE>
   
of  the Fund. Even under  those circumstances, the per  share net asset value of
the four classes eventually will tend to converge immediately after the  payment
of  dividends,  which will  differ by  approximately the  amount of  the expense
accrual differential between the classes.
    

    The Municipal Bonds and other portfolio securities in which the Fund invests
are traded primarily in  over-the-counter municipal bond  and money markets  and
are  valued at the last available bid price in the over-the-counter market or on
the basis of yield equivalents  as obtained from one  or more dealers that  make
markets  in the securities. One  bond is the "yield  equivalent" of another bond
when, taking into account market price, maturity, coupon rate, credit rating and
ultimate  return  of  principal,  both  bonds  will  theoretically  produce   an
equivalent  return to  the bondholder.  Financial futures  contracts and options
thereon, which are traded on exchanges, are valued at their settlement prices as
of the  close  of  such  exchanges.  Securities  and  assets  for  which  market
quotations  are not readily available are valued  at fair value as determined in
good faith by or  under the direction  of the Trustees  of the Trust,  including
valuations  furnished  by a  pricing service  retained by  the Trust,  which may
utilize a matrix system  for valuations. The procedures  of the pricing  service
and  its valuations are reviewed by the  officers of the Trust under the general
supervision of the Trustees.

                              SHAREHOLDER SERVICES

   
    The Trust offers a number of shareholder services described below which  are
designed to facilitate investment in shares of the Fund. Full details as to each
of such services and copies of the various plans described below can be obtained
from the Trust, the Distributor or Merrill Lynch.
    

INVESTMENT ACCOUNT

   
    Each  shareholder whose account  is maintained at the  Transfer Agent has an
Investment Account and  will receive  statements, at least  quarterly, from  the
Transfer   Agent  showing  any  reinvestment  of  dividends  and  capital  gains
distributions activity in the account since the previous statement. Shareholders
also will receive separate confirmations  for each purchase or sale  transaction
other  than reinvestment dividends and capital gains distributions. Shareholders
considering transferring their Class A or  Class D shares from Merrill Lynch  to
another  brokerage firm  or financial institution  should be aware  that, if the
firm to which the Class A or Class D shares are to be transferred will not  take
delivery  of shares of the Fund, a shareholder either must redeem the Class A or
Class D shares so that  the cash proceeds can be  transferred to the account  at
the new firm or such shareholder must continue to maintain an Investment Account
at  the  Transfer  Agent for  those  Class  A or  Class  D  shares. Shareholders
interested in transferring their  Class B or Class  C shares from Merrill  Lynch
and  who do not wish to have an Investment Account maintained for such shares at
the Transfer Agent may request their new brokerage firm to maintain such  shares
in  an account registered in  the name of the brokerage  firm for the benefit of
the shareholder.  If  the new  brokerage  firm  is willing  to  accommodate  the
shareholder  in  this manner,  the shareholder  must request  that he  be issued
certificates for his shares, and then must turn the certificates over to the new
firm for re-registration as described  in the preceding sentence. A  shareholder
may  make additions to their  Investment Account at any  time by mailing a check
directly to the Transfer Agent.
    

    Share certificates  are  issued only  for  full  shares and  only  upon  the
specific  request of  a shareholder who  has an Investment  Account. Issuance of
certificates representing all or only part  of the full shares in an  Investment
Account may be requested by a shareholder directly from the Transfer Agent.

                                       28
<PAGE>
   
AUTOMATIC INVESTMENT PLANS
    
   
    A  shareholder may make  additions to an  Investment Account at  any time by
purchasing Class A  shares (if  he or  she is an  eligible Class  A investor  as
described  in the  Prospectus) or  Class B,  Class C  or Class  D shares  at the
applicable public  offering price  either through  the shareholder's  securities
dealer,  or by  mail directly to  the Transfer  Agent, acting as  agent for such
securities dealers. Voluntary accumulation  also can be  made through a  service
known  as the  Fund's Automatic Investment  Plan whereby the  Fund is authorized
through pre-authorized checks or automated clearing house debits of $50 or  more
to  charge the  regular bank account  of the  shareholder on a  regular basis to
provide systematic  additions to  the Investment  Account of  such  shareholder.
Alternatively,  investors  who  maintain  CMA-R- accounts  may  arrange  to have
periodic investments made  in the  Fund in their  CMA-R- account  or in  certain
related  accounts  in  amounts of  $100  or  more through  the  CMA-R- Automated
Investment Program.
    

AUTOMATIC REINVESTMENT OF DIVIDENDS AND CAPITAL GAINS DISTRIBUTIONS

   
    Unless specific  instructions are  given  as to  the  method of  payment  of
dividends  and capital gains distributions,  dividends and distributions will be
reinvested automatically in  additional shares  of the  Fund. Such  reinvestment
will be at the net asset value of shares of the Fund as of the close of business
on  the monthly payment date for  such dividends and distributions. Shareholders
may elect in writing to receive  either their income dividends or capital  gains
distributions, or both, in cash, in which event payment will be mailed or direct
deposited on or about the payment date.
    

    Shareholders  may, at any time,  notify the Transfer Agent  in writing or by
telephone (1-800-MER-FUND)  that they  no longer  wish to  have their  dividends
and/or  capital gains  distributions reinvested  in shares  of the  Fund or vice
versa and, commencing ten days after the  receipt by the Transfer Agent of  such
notice, such instructions will be effected.

   
SYSTEMATIC WITHDRAWAL PLANS--CLASS A AND CLASS D SHARES
    
   
    A  Class A or Class  D shareholder may elect  to make systematic withdrawals
from an Investment Account  on either a monthly  or quarterly basis as  provided
below.  Quarterly withdrawals are  available for shareholders  who have acquired
Class A or  Class D shares  of the  Fund having a  value, based on  cost or  the
current offering price, of $5,000 or more, and monthly withdrawals are available
for  shareholders with Class A or Class D shares with such a value of $10,000 or
more.
    

   
    At the time of each withdrawal payment, sufficient Class A or Class D shares
are redeemed from those on deposit  in the shareholder's account to provide  the
withdrawal  payment specified  by the  shareholder. The  shareholder may specify
either a dollar amount or a  percentage of the value of  his Class A or Class  D
shares.  Redemptions will be made at net asset value as determined at the normal
close of business on the New York Stock Exchange (currently 4:00 P.M., New  York
City  time) on the 24th day  of each month or the 24th  day of the last month of
each quarter, whichever is applicable. If the Exchange is not open for  business
on  such date, the Class  A or Class D  shares will be redeemed  at the close of
business on the  following business day.  The check for  the withdrawal  payment
will  be mailed, or the direct deposit  for the withdrawal payment will be made,
on the next  business day  following redemption.  When a  shareholder is  making
systematic  withdrawals, dividends and  distributions on all Class  A or Class D
shares in  the Investment  Account are  reinvested automatically  in the  Fund's
Class  A or Class D shares,  respectively. A shareholder's Systematic Withdrawal
Plan may  be  terminated  at  any  time,  without  charge  or  penalty,  by  the
shareholder, the Trust, the Fund's Transfer Agent or the Distributor. Withdrawal
payments should not be considered as dividends, yield
    

                                       29
<PAGE>
   
or  income.  Each  withdrawal  is  a  taxable  event.  If  periodic  withdrawals
continuously exceed reinvested dividends, the shareholder's original  investment
may  be  reduced correspondingly.  Purchases of  additional Class  A or  Class D
shares  concurrent  with  withdrawals  are  ordinarily  disadvantageous  to  the
shareholder  because of  sales charges and  tax liabilities. The  Trust will not
knowingly accept purchase orders for Class A or Class D shares of the Fund  from
investors  who maintain  a Systematic  Withdrawal Plan  unless such  purchase is
equal to  at least  one year's  scheduled withdrawals  or $1,200,  whichever  is
greater.  Periodic investments  may not  be made  into an  Investment Account in
which the shareholder has elected to make systematic withdrawals.
    

   
    A Class A or Class  D shareholder whose shares are  held within a CMA-R-  or
CBA-R-  Account  may elect  to  have shares  redeemed  on a  monthly, bimonthly,
quarterly, semiannual or annual basis through the Systematic Redemption Program.
The minimum fixed dollar  amount redeemable is $25.  The proceeds of  systematic
redemptions will be posted to the shareholder's account five business days after
the date the shares are redeemed. Monthly systematic redemptions will be made at
net  asset  value  on  the  first Monday  of  each  month,  bimonthly systematic
redemptions will be made at net asset  value on the first Monday of every  other
month,  and quarterly,  semiannual or annual  redemptions are made  at net asset
value on the first Monday of months selected at the shareholder's option. If the
first Monday of the month is a holiday, the redemption will be processed at  net
asset  value on the next business day.  The Systematic Redemption Program is not
available if Company shares are being  purchased within the account pursuant  to
the  Automated  Investment  Program.  For  more  information  on  the Systematic
Redemption  Program,  eligible  shareholders  should  contact  their   Financial
Consultant.
    

   
EXCHANGE PRIVILEGE
    
   
    Shareholders  of each class of shares of the Fund have an exchange privilege
with certain other  MLAM-advised mutual  funds listed below.  Under the  Merrill
Lynch Select Pricing System, Class A shareholders may exchange Class A shares of
the  Fund  for  Class A  shares  of a  second  MLAM-advised mutual  fund  if the
shareholder holds any Class A shares of the second fund in his account in  which
the  exchange is made  at the time of  the exchange or  is otherwise eligible to
purchase Class A shares of the second fund. If the Class A shareholder wants  to
exchange Class A shares for shares of a second MLAM-advised mutual fund, and the
shareholder  does not hold Class  A shares of the second  fund in his account at
the time of the exchange and is not otherwise eligible to acquire Class A shares
of the second fund, the  shareholder will receive Class  D shares of the  second
fund as a result of the exchange. Class D shares also may be exchanged for Class
A  shares of a  second MLAM-advised mutual fund  at any time as  long as, at the
time of the exchange, the shareholder holds Class A shares of the second fund in
the account in which the exchange is  made or is otherwise eligible to  purchase
Class  A shares of the second fund. Class B,  Class C and Class D shares will be
exchangeable with shares of the same  class of other MLAM-advised mutual  funds.
For purposes of computing the CDSC that may be payable upon a disposition of the
shares  acquired in  the exchange, the  holding period for  the previously owned
shares of the  Fund is  "tacked" to  the holding  period of  the newly  acquired
shares  of the other Fund as more fully described below. Class A, Class B, Class
C  and  Class  D  shares  also  will  be  exchangeable  for  shares  of  certain
MLAM-advised  money market funds specifically  designated below as available for
exchange by holders of Class A, Class B, Class C or Class D shares. Shares  with
a  net asset  value of at  least $100 are  required to qualify  for the exchange
privilege, and any shares  utilized in an  exchange must have  been held by  the
shareholder  for 15 days. It is contemplated  that the exchange privilege may be
applicable to other  new mutual  funds whose shares  may be  distributed by  the
Distributor.
    

                                       30
<PAGE>
   
    Exchanges  of Class A or Class D shares outstanding ("outstanding Class A or
Class D shares")  for Class A  or Class  D shares of  other MLAM-advised  mutual
funds  ("new Class A or Class D shares") are transacted on the basis of relative
net asset value per Class A or Class D share, respectively, plus an amount equal
to the  difference, if  any, between  the sales  charge previously  paid on  the
outstanding  Class A or Class D shares and  the sales charge payable at the time
of the  exchange  on  the new  Class  A  or  Class D  shares.  With  respect  to
outstanding  Class A or Class D shares as to which previous exchanges have taken
place, the "sales  charge previously paid"  shall include the  aggregate of  the
sales charges paid with respect to such Class A or Class D shares in the initial
purchase  and any subsequent exchange. Class A or Class D shares issued pursuant
to dividend  reinvestment are  sold on  a no-load  basis in  each of  the  funds
offering  Class A  or Class  D shares. For  purposes of  the exchange privilege,
Class A  and Class  D shares  acquired through  dividend reinvestment  shall  be
deemed  to  have  been  sold with  a  sales  charge equal  to  the  sales charge
previously paid on the Class A or Class D shares on which the dividend was paid.
Based on this formula, Class A and Class  D shares of the Fund generally may  be
exchanged  into the Class A or Class D  shares of the other funds or into shares
of the Class A and Class D money market funds without a sales charge.
    

   
    In addition, each of the funds with  Class B and Class C shares  outstanding
("outstanding  Class B and  Class C shares")  offers to exchange  its Class B or
Class C shares for  Class B or  Class C shares, respectively,  ("new Class B  or
Class  C shares") of another  MLAM-advised mutual fund on  the basis of relative
net asset value per Class  B or Class C share,  without the payment of any  CDSC
that  might otherwise be  due on redemption  of the outstanding  shares. Class B
shareholders of the Fund exercising the  exchange privilege will continue to  be
subject  to the Fund's  CDSC schedule if  such schedule is  higher than the CDSC
schedule relating to the new Class B shares acquired through use of the exchange
privilege. In addition, Class B shares of  the Fund acquired through use of  the
exchange  privilege will be subject to the Fund's CDSC schedule if such schedule
is higher than the CDSC schedule relating to the Class B shares of the fund from
which the exchange  has been made.  For purposes of  computing the sales  charge
that  may be payable on a disposition of the  new Class B or Class C shares, the
holding period for the outstanding Class B or Class C shares is "tacked" to  the
holding  period of the new  Class B or Class C  shares. For example, an investor
may exchange Class B shares of the Fund for those of Merrill Lynch Special Value
Fund ("Special Value Fund") after having held the Fund's Class B shares for  two
and a half years. The 2% sales charge that generally would apply to a redemption
would  not apply to the  exchange. Three years later  the investor may decide to
redeem the Class B shares of Special Value Fund and receive cash. There will  be
no  CDSC due  on this  redemption, since by  "tacking" the  two and  a half year
holding period of the Fund's Class B shares to the three year holding period for
the Special Value Fund Class B shares, the investor will be deemed to have  held
the new Class B shares for more than five years.
    

   
    Shareholders  also may exchange  shares of the  Fund into shares  of a money
market fund advised by the Manager or its affiliates but the period of time that
Class B or Class C shares are held in a money market fund will not count towards
satisfaction of the holding period requirement for purposes of reducing the CDSC
or, with  respect to  Class B  shares, towards  satisfaction of  the  conversion
period.  However, shares of a money market  fund which were acquired as a result
of an  exchange for  Class B  or Class  C  shares of  a fund  may, in  turn,  be
exchanged  back  into Class  B  or Class  C  shares, respectively,  of  any fund
offering such shares, in which event the  holding period for Class B or Class  C
shares of the Fund will be aggregated with previous holding periods for purposes
of reducing the CDSC. Thus, for example, an investor may exchange Class B shares
of the Fund for shares of Institutional Fund ("Institutional Fund") after having
held the Fund Class B
    

                                       31
<PAGE>
   
shares  for two  and a  half years and  three years  later decide  to redeem the
shares of Institutional Fund for  cash. At the time  of this redemption, the  2%
CDSC  that would have been due had the  Class B shares of the Fund been redeemed
for cash rather than exchanged for sales of Institutional Fund will be  payable.
If, instead of such redemption the shareholder exchanged such shares for Class B
shares  of a fund which the shareholder  continued to hold for an additional two
and a half years, any subsequent redemption will not incur a CDSC.
    

   
    Set forth below is a description  of the investment objectives of the  other
funds into which exchanges can be made are as follows:
    

   
<TABLE>
<S>                                            <C>
FUNDS ISSUING CLASS A, CLASS B, CLASS C AND CLASS D SHARES:

MERRILL LYNCH ADJUSTABLE RATE SECURITIES
  FUND, INC..................................  High  current income consistent with a policy
                                               of limiting the degree of fluctuation in  net
                                                 asset  value of fund  shares resulting from
                                                 movements   in   interest   rates   through
                                                 investment  primarily  in  a  portfolio  of
                                                 adjustable rate securities.
MERRILL LYNCH AMERICAS INCOME FUND, INC......  A high  level of  current income,  consistent
                                               with  prudent  investment risk,  by investing
                                                 primarily in debt securities denominated in
                                                 a currency  of  a country  located  in  the
                                                 Western  Hemisphere (I.E.,  North and South
                                                 America and the surrounding waters).

MERRILL LYNCH ARIZONA LIMITED MATURITY
  MUNICIPAL BOND FUND........................  A  portfolio  of  Merrill  Lynch  Multi-State
                                               Limited  Maturity  Municipal Series  Trust, a
                                                 series fund, whose objective is to  provide
                                                 as  high  a  level  of  income  exempt from
                                                 Federal and  Arizona  income  taxes  as  is
                                                 consistent with prudent investment
                                                 management    through   investment   in   a
                                                 portfolio  primarily  of  intermediate-term
                                                 investment grade Arizona Municipal Bonds.
MERRILL LYNCH ARKANSAS MUNICIPAL BOND FUND,
  INC........................................  A  portfolio  of  Merrill  Lynch  Multi-State
                                               Municipal Series Trust, a series fund,  whose
                                                 objective  is to provide as high a level of
                                                 income exempt  from  Federal  and  Arkansas
                                                 income  taxes as is consistent with prudent
                                                 investment management.
</TABLE>
    

                                       32
<PAGE>

   
<TABLE>
<S>                                            <C>
MERRILL LYNCH ASSET GROWTH FUND, INC.........  High total investment return, consistent with
                                               prudent  risk,  from  investment  in   United
                                                 States  and foreign equity,  debt and money
                                                 market securities the combination of  which
                                                 will  be varied both  with respect to types
                                                 of securities  and markets  in response  to
                                                 changing market and economic trends.
MERRILL LYNCH ASSET INCOME FUND, INC.........  A   high  level  of  current  income  through
                                               investment primarily in  United States  fixed
                                                 income securities.
MERRILL LYNCH BALANCED FUND FOR INVESTMENT
  AND RETIREMENT.............................  As high a level of total investment return as
                                               is  consistent with a relatively low level of
                                                 risk through  investment in  common  stocks
                                                 and  other  types of  securities, including
                                                 fixed  income  securities  and  convertible
                                                 securities.

MERRILL LYNCH BASIC VALUE FUND, INC..........  Capital appreciation, and secondarily, income
                                               by   investing   in   securities,   primarily
                                                 equities,   that   are   undervalued    and
                                                 therefore represent basic investment value.

MERRILL LYNCH CALIFORNIA INSURED MUNICIPAL
  BOND FUND..................................  A   portfolio  of  Merrill  Lynch  California
                                               Municipal Series Trust, a series fund,  whose
                                                 objective  is to provide as high a level of
                                                 income exempt from  Federal and  California
                                                 income  taxes as is consistent with prudent
                                                 investment management through investment in
                                                 a portfolio primarily of insured California
                                                 Municipal Bonds.

MERRILL LYNCH CALIFORNIA LIMITED MATURITY
  MUNICIPAL BOND FUND........................  A  portfolio  of  Merrill  Lynch  Multi-State
                                               Limited  Maturity  Municipal Series  Trust, a
                                                 series fund, whose objective is to  provide
                                                 as  high  a  level  of  income  exempt from
                                                 Federal and California  income taxes as  is
                                                 consistent with prudent investment
                                                 management  through  investment in  a port-
                                                 folio   primarily   of    intermediate-term
                                                 investment   grade   California   Municipal
                                                 Bonds.
MERRILL LYNCH CALIFORNIA MUNICIPAL
  BOND FUND..................................  A  portfolio  of  Merrill  Lynch   California
                                               Municipal  Series Trust, a series fund, whose
                                                 objective is to provide as high a level  of
                                                 income  exempt from  Federal and California
                                                 income taxes as is consistent with  prudent
                                                 investment management.
</TABLE>
    

                                       33
<PAGE>

   
<TABLE>
<S>                                            <C>
MERRILL LYNCH CAPITAL FUND, INC..............  The    highest   total    investment   return
                                               consistent with prudent risk through a  fully
                                                 managed investment policy utilizing equity,
                                                 debt and convertible securities.

MERRILL LYNCH COLORADO MUNICIPAL
  BOND FUND..................................  A  portfolio  of  Merrill  Lynch  Multi-State
                                               Municipal Series Trust, a series fund,  whose
                                                 objective  is to provide as high a level of
                                                 income exempt  from  Federal  and  Colorado
                                                 income  taxes as is consistent with prudent
                                                 investment management.
MERRILL LYNCH CONNECTICUT MUNICIPAL
  BOND FUND..................................  A  portfolio  of  Merrill  Lynch  Multi-State
                                               Municipal  Series Trust, a series fund, whose
                                                 objective is to provide as high a level  of
                                                 income  exempt from Federal and Connecticut
                                                 income taxes as is consistent with  prudent
                                                 investment management.
MERRILL LYNCH CORPORATE BOND FUND, INC.......  Current    income    from    three   separate
                                               diversified  portfolios   of   fixed   income
                                                 securities.

MERRILL LYNCH DEVELOPING CAPITAL MARKETS
  FUND, INC..................................  Long-term  appreciation through investment in
                                               securities, principally equities, of  issuers
                                                 in   countries   having   smaller   capital
                                                 markets.

MERRILL LYNCH DRAGON FUND, INC...............  Capital   appreciation   primarily    through
                                               investment  in equity and  debt securities of
                                                 issuers domiciled  in developing  countries
                                                 located in Asia and the Pacific Basin.
MERRILL LYNCH EUROFUND.......................  Capital    appreciation   primarily   through
                                               investment   in    equity    securities    of
                                                 corporations domiciled in Europe.

MERRILL LYNCH FEDERAL SECURITIES TRUST.......  High  current  return through  investments in
                                               U.S.   Government   and   Government   agency
                                                 securities,  including GNMA mortgage-backed
                                                 certificates  and   other   mortgage-backed
                                                 Government securities.
</TABLE>
    

                                       34
<PAGE>

   
<TABLE>
<S>                                            <C>
MERRILL LYNCH FLORIDA LIMITED MATURITY
  MUNICIPAL BOND FUND........................  A  portfolio  of  Merrill  Lynch  Multi-State
                                               Limited Maturity  Municipal Series  Trust,  a
                                                 series  fund, whose objective is to provide
                                                 as high  a  level  of  income  exempt  from
                                                 Federal  income taxes as is consistent with
                                                 prudent investment management while serving
                                                 to offer  shareholders the  opportunity  to
                                                 own securities exempt from Florida intangi-
                                                 ble   personal   property   taxes   through
                                                 investment  in  a  portfolio  primarily  of
                                                 intermediate-term  investment grade Florida
                                                 Municipal Bonds.
MERRILL LYNCH FLORIDA MUNICIPAL
  BOND FUND..................................  A  portfolio  of  Merrill  Lynch  Multi-State
                                               Municipal  Series Trust, a series fund, whose
                                                 objective is to provide as high a level  of
                                                 income  exempt from Federal income taxes as
                                                 is  consistent   with  prudent   investment
                                                 management  while at the same time offering
                                                 shares, the value of  which is exempt  from
                                                 Florida intangible personal property taxes.

MERRILL LYNCH FUND FOR TOMORROW, INC.........  Long-term  growth  through  investment  in  a
                                               portfolio   of   good   quality   securities,
                                                 primarily    common    stock,   potentially
                                                 positioned to benefit from demographic  and
                                                 cultural  changes  as they  affect consumer
                                                 markets.

MERRILL LYNCH FUNDAMENTAL GROWTH FUND,
  INC........................................  Long-term  growth  through  investment  in  a
                                               diversified  portfolio  of  equity securities
                                                 placing particular  emphasis  on  companies
                                                 that  have  exhibited  above-average growth
                                                 rate in earnings.

MERRILL LYNCH GLOBAL ALLOCATION FUND, INC....  High total investment return, consistent with
                                               prudent risk,  through  a  fully  managed  in
                                                 vestment policy utilizing United States and
                                                 foreign   equity,  debt  and  money  market
                                                 securities, the combination  of which  will
                                                 be  varied  from  time  to  time  both with
                                                 respect to  the  types  of  securities  and
                                                 markets  in response to changing market and
                                                 economic trends.
</TABLE>
    

                                       35
<PAGE>

   
<TABLE>
<S>                                            <C>
MERRILL LYNCH GLOBAL BOND FUND FOR INVESTMENT
  AND RETIREMENT.............................  High total investment return from  investment
                                               in government and corporate bonds denominated
                                                 in  various  currencies  and multi-national
                                                 currency units.

MERRILL LYNCH GLOBAL CONVERTIBLE FUND,
  INC........................................  High total return  from investment  primarily
                                               in  an international diversified portfolio of
                                                 convertible  debt  securities,  convertible
                                                 preferred stock and "synthetic" convertible
                                                 securities  consisting of  a combination of
                                                 debt  securities  or  preferred  stock  and
                                                 warrants or options.

MERRILL LYNCH GLOBAL HOLDINGS, INC.
  (residents of Arizona must meet investor
  suitability standards).....................  The    highest   total    investment   return
                                               consistent   with   prudent   risk    through
                                                 worldwide  investment in an internationally
                                                 diversified portfolio of securities.

MERRILL LYNCH GLOBAL RESOURCES TRUST.........  Long-term growth  and protection  of  capital
                                               from investment in securities of domestic and
                                                 foreign  companies that possess substantial
                                                 natural resource assets.
MERRILL LYNCH GLOBAL SMALLCAP FUND, INC......  Long-term  growth  of  capital  by  investing
                                               primarily  in equity  securities of companies
                                                 with relatively small market
                                                 capitalizations located in various  foreign
                                                 countries and in the United States.
MERRILL LYNCH GLOBAL UTILITY FUND, INC.......  Capital   appreciation  and   current  income
                                               through investment  of at  least 65%  of  its
                                                 total  assets in equity and debt securities
                                                 issued by  domestic and  foreign  companies
                                                 which   are   primarily   engaged   in  the
                                                 ownership or operation  of facilities  used
                                                 to   generate,   transmit   or   distribute
                                                 electricity,  telecommunications,  gas   or
                                                 water.

MERRILL LYNCH GROWTH FUND FOR INVESTMENT AND
  RETIREMENT.................................  Growth  of  capital and,  secondarily, income
                                               from investment in a diversified portfolio of
                                                 equity   securities    placing    principal
                                                 emphasis    on   those   securities   which
                                                 management of the fund  believes to be  un-
                                                 dervalued.
</TABLE>
    

                                       36
<PAGE>

   
<TABLE>
<S>                                            <C>
MERRILL LYNCH HEALTHCARE FUND, INC.
  (residents of Wisconsin must meet investor
  suitability standards).....................  Capital    appreciation   through   worldwide
                                               investment in equity securities of  companies
                                                 that  derive  or are  expected to  derive a
                                                 substantial  portion  of  their  sale  from
                                                 products and services in healthcare.

MERRILL LYNCH INTERNATIONAL EQUITY FUND......  Capital appreciation and, secondarily, income
                                               by  investing in  a diversified  portfolio of
                                                 equity securities  of  issuers  located  in
                                                 countries other than the United States.

MERRILL LYNCH LATIN AMERICA FUND, INC........  Capital  appreciation by  investing primarily
                                               in Latin American equity and debt securities.

MERRILL LYNCH MARYLAND MUNICIPAL
  BOND FUND..................................  A  portfolio  of  Merrill  Lynch  Multi-State
                                               Municipal  Series Trust, a series fund, whose
                                                 objective is to provide as high a level  of
                                                 income  exempt  from  Federal  and Maryland
                                                 income taxes as is consistent with  prudent
                                                 investment management.

MERRILL LYNCH MASSACHUSETTS LIMITED MATURITY
  MUNICIPAL BOND FUND........................  A  portfolio  of  Merrill  Lynch  Multi-State
                                               Limited Maturity  Municipal Series  Trust,  a
                                                 series  fund, whose objective is to provide
                                                 as high  a  level  of  income  exempt  from
                                                 Federal  and Massachusetts  income taxes as
                                                 is  consistent   with  prudent   investment
                                                 management  through  investment in  a port-
                                                 folio   primarily   of    intermediate-term
                                                 investment  grade  Massachusetts  Municipal
                                                 Bonds.
MERRILL LYNCH MASSACHUSETTS MUNICIPAL BOND
  FUND.......................................  A  portfolio  of  Merrill  Lynch  Multi-State
                                               Municipal  Series Trust, a series fund, whose
                                                 objective is to provide as high a level  of
                                                 income exempt from Federal and
                                                 Massachusetts   income  taxes  as  is  con-
                                                 sistent with prudent investment management.
</TABLE>
    

                                       37
<PAGE>

   
<TABLE>
<S>                                            <C>
MERRILL LYNCH MICHIGAN LIMITED MATURITY
  MUNICIPAL BOND FUND........................  A  portfolio  of  Merrill  Lynch  Multi-State
                                               Limited  Maturity  Municipal Series  Trust, a
                                                 series fund, whose objective is to  provide
                                                 as  high  a  level  of  income  exempt from
                                                 Federal and  Michigan  income taxes  as  is
                                                 consistent with prudent investment
                                                 management  through  investment in  a port-
                                                 folio   primarily   of    intermediate-term
                                                 investment grade Michigan Municipal Bonds.
MERRILL LYNCH MICHIGAN MUNICIPAL
  BOND FUND..................................  A  portfolio  of  Merrill  Lynch  Multi-State
                                               Municipal Series Trust, a series fund,  whose
                                                 objective  is to provide as high a level of
                                                 income exempt  from  Federal  and  Michigan
                                                 income  taxes as is consistent with prudent
                                                 investment management.

MERRILL LYNCH MINNESOTA MUNICIPAL
  BOND FUND..................................  A  portfolio  of  Merrill  Lynch  Multi-State
                                               Municipal  Series Trust, a series fund, whose
                                                 objective is to provide as high a level  of
                                                 income  exempt  from Federal  and Minnesota
                                                 personal income taxes as is consistent with
                                                 prudent investment management.

MERRILL LYNCH MUNICIPAL BOND FUND, INC.......  Tax-exempt   income   from   three   separate
                                               diversified portfolios of municipal bonds.

MERRILL LYNCH MUNICIPAL INTERMEDIATE TERM
  FUND.......................................  Currently the only portfolio of Merrill Lynch
                                               Municipal  Series Trust, a series fund, whose
                                                 objective is to provide as high a level  as
                                                 possible  of  income  exempt  from  Federal
                                                 income taxes  by  investing  in  investment
                                                 grade  obligations  with a  dollar weighted
                                                 average maturity of five to twelve years.

MERRILL LYNCH NEW JERSEY LIMITED MATURITY
  MUNICIPAL BOND FUND........................  A  portfolio  of  Merrill  Lynch  Multi-State
                                               Limited  Maturity  Municipal Series  Trust, a
                                                 series fund, whose objective is to  provide
                                                 as  high  a  level  of  income  exempt from
                                                 Federal and New Jersey  income taxes as  is
                                                 consistent with prudent investment
                                                 management through a portfolio primarily of
                                                 intermediate-term   investment   grade  New
                                                 Jersey Municipal Bonds.
</TABLE>
    

                                       38
<PAGE>

   
<TABLE>
<S>                                            <C>
MERRILL LYNCH NEW JERSEY MUNICIPAL
  BOND FUND..................................  A  portfolio  of  Merrill  Lynch  Multi-State
                                               Municipal  Series Trust, a series fund, whose
                                                 objective is to provide as high a level  of
                                                 income  exempt from Federal  and New Jersey
                                                 income taxes as is consistent with  prudent
                                                 investment management.

MERRILL LYNCH NEW MEXICO MUNICIPAL
  BOND FUND..................................  A  portfolio  of  Merrill  Lynch  Multi-State
                                               Municipal Series Trust, a series fund,  whose
                                                 objective  is  as  high a  level  of income
                                                 exempt from Federal  and New Mexico  income
                                                 taxes   as   is  consistent   with  prudent
                                                 investment management.
MERRILL LYNCH NEW YORK LIMITED MATURITY
  MUNICIPAL BOND FUND........................  A  portfolio  of  Merrill  Lynch  Multi-State
                                               Limited  Maturity  Municipal Series  Trust, a
                                                 series fund, whose objective  is as high  a
                                                 level  of income  exempt from  Federal, New
                                                 York State and New  York City income  taxes
                                                 as  is  consistent with  prudent investment
                                                 management   through   investment   in    a
                                                 portfolio  primarily  of  intermediate-term
                                                 grade New York Municipal Bonds.
MERRILL LYNCH NEW YORK MUNICIPAL
  BOND FUND..................................  A  portfolio  of  Merrill  Lynch  Multi-State
                                               Municipal  Series Trust, a series fund, whose
                                                 objective is to provide as high a level  of
                                                 income  exempt from Federal, New York State
                                                 and  New  York  City  income  taxes  as  is
                                                 consistent with prudent investment
                                                 management.

MERRILL LYNCH NORTH CAROLINA MUNICIPAL BOND
  FUND.......................................  A  portfolio  of  Merrill  Lynch  Multi-State
                                               Municipal Series Trust, a series fund,  whose
                                                 objective  is to provide as high a level of
                                                 income  exempt  from   Federal  and   North
                                                 Carolina income taxes as is consistent with
                                                 prudent investment management.

MERRILL LYNCH OHIO MUNICIPAL BOND FUND.......  A  portfolio  of  Merrill  Lynch  Multi-State
                                               Municipal Series Trust, a series fund,  whose
                                                 objective  is to provide as high a level of
                                                 income exempt from Federal and Ohio  income
                                                 taxes   as   is  consistent   with  prudent
                                                 investment management.
</TABLE>
    

                                       39
<PAGE>

   
<TABLE>
<S>                                            <C>
MERRILL LYNCH OREGON MUNICIPAL
  BOND FUND..................................  A  portfolio  of  Merrill  Lynch  Multi-State
                                               Municipal  Series Trust, a series fund, whose
                                                 objective is to provide as high a level  of
                                                 income   exempt  from  Federal  and  Oregon
                                                 income taxes as is consistent with  prudent
                                                 investment management.

MERRILL LYNCH PACIFIC FUND, INC..............  Capital  appreciation by  investing in equity
                                               securities of corporations  domiciled in  Far
                                                 Eastern   and  Western  Pacific  countries,
                                                 including Japan, Australia,  Hong Kong  and
                                                 Singapore.
MERRILL LYNCH PENNSYLVANIA LIMITED MATURITY
  MUNICIPAL BOND FUND........................  A  portfolio  of  Merrill  Lynch  Multi-State
                                               Limited Maturity  Municipal Series  Trust,  a
                                                 series  fund, whose objective is to provide
                                                 as high  a  level  of  income  exempt  from
                                                 Federal and Pennsylvania income taxes as is
                                                 consistent with prudent investment
                                                 management  through  investment in  a port-
                                                 folio   primarily   of    intermediate-term
                                                 investment   grade  Pennsylvania  Municipal
                                                 Bonds.
MERRILL LYNCH PENNSYLVANIA MUNICIPAL BOND
  FUND.......................................  A  portfolio  of  Merrill  Lynch  Multi-State
                                               Municipal  Series Trust, a series fund, whose
                                                 objective is to provide as high a level  of
                                                 income exempt from Federal and Pennsylvania
                                                 personal income taxes as is consistent with
                                                 prudent investment management.

MERRILL LYNCH PHOENIX FUND, INC..............  Long-term  growth of capital  by investing in
                                               equity and fixed income securities, including
                                                 tax-exempt securities, of  issuers in  weak
                                                 financial  condition  or  experiencing poor
                                                 operating   results    believed    to    be
                                                 undervalued  relative  to  the  current  or
                                                 prospective condition of such issuer.

MERRILL LYNCH SHORT-TERM GLOBAL INCOME FUND,
  INC........................................  As high  a  level  of current  income  as  is
                                               consistent with prudent investment management
                                                 from  a  global portfolio  of  high quality
                                                 debt  securities  denominated  in   various
                                                 currencies and multinational currency units
                                                 and   having   remaining   maturities   not
                                                 exceeding three years.
</TABLE>
    

                                       40
<PAGE>

   
<TABLE>
<S>                                            <C>
MERRILL LYNCH SPECIAL VALUE FUND, INC........  Long-term growth of capital from  investments
                                               in  securities,  primarily common  stocks, of
                                                 relatively small companies believed to have
                                                 special  investment   value  and   emerging
                                                 growth companies regardless of size.

MERRILL LYNCH STRATEGIC DIVIDEND FUND........  Long-term  total  return  from  investment in
                                               dividend paying  common  stocks  which  yield
                                                 more  than Standard &  Poor's 500 Composite
                                                 Stock Price Index.

MERRILL LYNCH TECHNOLOGY FUND, INC...........  Capital   appreciation   through    worldwide
                                               investment  in equity securities of companies
                                                 that derive  or are  expected to  derive  a
                                                 substantial  portion  of  their  sales from
                                                 products and services in technology.

MERRILL LYNCH TEXAS MUNICIPAL BOND FUND......  A  portfolio  of  Merrill  Lynch  Multi-State
                                               Municipal  Series Trust, a series fund, whose
                                                 objective is to provide as high a level  of
                                                 income  exempt from Federal income taxes as
                                                 is  consistent   with  prudent   investment
                                                 management  by  investing  primarily  in  a
                                                 portfolio of  long-term,  investment  grade
                                                 municipal  obligations issued  by the State
                                                 of  Texas,   its  political   subdivisions,
                                                 agencies and instrumentalities.

MERRILL LYNCH UTILITY INCOME FUND, INC.......  High  current  income  through  investment in
                                               equity  and   debt   securities   issued   by
                                                 companies  which  are primarily  engaged in
                                                 the ownership  or operation  of  facilities
                                                 used  to  generate, transmit  or distribute
                                                 electricity,  telecommunications,  gas   or
                                                 water.

MERRILL LYNCH WORLD INCOME FUND, INC.........  High  current income by investing in a global
                                               portfolio   of   fixed   income    securities
                                                 denominated in various currencies,
                                                 including multinational currency units.

CLASS A SHARE MONEY MARKET FUNDS:
MERRILL LYNCH READY ASSETS TRUST.............  Preservation  of  capital, liquidity  and the
                                               highest possible  current  income  consistent
                                                 with  the  foregoing  objectives  from  the
                                                 short-term money market securities in which
                                                 the Trust invests.
</TABLE>
    

                                       41
<PAGE>

   
<TABLE>
<S>                                            <C>
MERRILL LYNCH RETIREMENT RESERVES MONEY FUND
  (available only if the exchange occurs
  within certain retirement plans)...........  Currently the only portfolio of Merrill Lynch
                                               Retirement Series Trust, a series fund, whose
                                                 objectives are current income, preservation
                                                 of capital  and  liquidity  available  from
                                                 investing  in  a  diversified  portfolio of
                                                 short-term money market securities.
MERRILL LYNCH U.S.A. GOVERNMENT RESERVES.....  Preservation of capital,  current income  and
                                               liquidity  available from investing in direct
                                                 obligations  of  the  U.S.  Government  and
                                                 repurchase   agreements  relating  to  such
                                                 securities.
MERRILL LYNCH U.S. TREASURY MONEY FUND.......  Preservation  of   capital,   liquidity   and
                                               current income through investment exclusively
                                                 in  a  diversified portfolio  of short-term
                                                 marketable  securities  which  are   direct
                                                 obligations of the U.S. Treasury.
CLASS B, CLASS C AND CLASS D SHARE MONEY MARKET FUNDS:
MERRILL LYNCH GOVERNMENT FUND................  A   portfolio  of  Merrill  Lynch  Funds  for
                                               Institutions Series,  a  series  fund,  whose
                                                 objective  is  to  provide  current  income
                                                 consistent with liquidity  and security  of
                                                 principal from investment in securities is-
                                                 sued  or guaranteed by the U.S. Government,
                                                 its agencies and  instrumentalities and  in
                                                 repurchase   agreements  secured   by  such
                                                 obligations.
MERRILL LYNCH INSTITUTIONAL FUND.............  A  portfolio  of  Merrill  Lynch  Funds   for
                                               Institutions  Series,  a  series  fund, whose
                                                 objective is  to  provide  maximum  current
                                                 income  consistent  with liquidity  and the
                                                 maintenance of a high-quality portfolio  of
                                                 money market securities.
MERRILL LYNCH INSTITUTIONAL
  TAX-EXEMPT FUND............................  A   portfolio  of  Merrill  Lynch  Funds  for
                                               Institutions, a series fund, whose  objective
                                                 is  to provide  current income  exempt from
                                                 Federal  income   taxes,  preservation   of
                                                 capital  and  liquidity available  from in-
                                                 vesting  in  a  diversified  portfolio   of
                                                 short-term, high quality municipal bonds.
</TABLE>
    

                                       42
<PAGE>

   
<TABLE>
<S>                                            <C>
MERRILL LYNCH TREASURY FUND..................  A   portfolio  of  Merrill  Lynch  Funds  for
                                               Institutions Series,  a  series  fund,  whose
                                                 objective  is  to  provide  current  income
                                                 consistent with liquidity  and security  of
                                                 principal from investment in direct obliga-
                                                 tions of the U.S. Treasury and up to 10% of
                                                 its  total assets  in repurchase agreements
                                                 secured by such obligations.
</TABLE>
    

   
    Before  effecting  an  exchange,  shareholders  should  obtain  a  currently
effective prospectus of the fund into which the exchange is to be made.
    

   
    To  exercise  the  exchange  privilege,  shareholders  should  contact their
Merrill Lynch financial consultant,  who will advise the  Fund of the  exchange.
Shareholders  of the Fund,  and shareholders of the  other funds described above
with shares  for which  certificates  have not  been  issued, may  exercise  the
exchange  privilege by wire through their  securities dealers. The Fund reserves
the right to require  a properly completed  Exchange Application. This  exchange
privilege may be modified or terminated at any time in accordance with the rules
of  the Commission. The Fund reserves the right  to limit the number of times an
investor may  exercise the  exchange privilege.  Certain funds  may suspend  the
continuous  offering of their shares at any  time and thereafter may resume such
offering from time  to time. The  exchange privilege is  available only to  U.S.
shareholders where the exchange legally may be made.
    

                            DISTRIBUTIONS AND TAXES

   
    The  Trust  intends to  continue to  qualify  the Fund  for the  special tax
treatment afforded regulated  investment companies ("RICs")  under the  Internal
Revenue  Code of 1986, as amended (the "Code"). If the Fund so qualifies, in any
taxable year in which it distributes at least 90% of its taxable net income  and
90%  of its tax-exempt net income, the  Fund (but not its shareholders) will not
be subject to  Federal income  tax to  the extent  that it  distributes its  net
investment income and net realized capital gains. The Trust intends to cause the
Fund to distribute substantially all of such income.
    

   
    As  discussed  in the  Fund's Prospectus,  the  Trust has  established other
series in addition  to the  Fund (together with  the Fund,  the "Series").  Each
Series  of the Trust is treated as a separate corporation for Federal income tax
purposes. Each  Series  therefore is  considered  to  be a  separate  entity  in
determining  its treatment under the rules for RICs described in the Prospectus.
Losses in one Series do not offset gains in another Series, and the requirements
(other than certain organizational requirements)  for qualifying for RIC  status
will be determined at the Series level rather than at the Trust level.
    

   
    The  Code requires a RIC to pay a  nondeductible 4% excise tax to the extent
the RIC does  not distribute,  during each calendar  year, 98%  of its  ordinary
income,  determined on  a calendar  year basis,  and 98%  of its  capital gains,
determined, in general, on  an October 31 year  end, plus certain  undistributed
amounts from previous years. The required distributions, however, are based only
on  the taxable income of  a RIC. The excise  tax, therefore, generally will not
apply to  the  tax-exempt  income  of  a  RIC,  such  as  the  Fund,  that  pays
exempt-interest dividends.
    

    The  Trust intends to qualify the Fund to pay "exempt-interest dividends" as
defined in Section 852(b)(5) of the Code. Under such section if, at the close of
each quarter of the Fund's taxable year, at least 50% of the value of the Fund's
total  assets  consists   of  obligations   exempt  from   Federal  income   tax

                                       43
<PAGE>
   
("tax-exempt  obligations") under Section 103(a) of the Code (relating generally
to obligations  of  a state  or  local governmental  unit),  the Fund  shall  be
qualified  to pay exempt-interest dividends to its Class A, Class B, Class C and
Class D shareholders (together,  the "shareholders"). Exempt-interest  dividends
are  dividends or any  part thereof paid  by the Fund  which are attributable to
interest  on   tax-exempt   obligations  and   designated   by  the   Trust   as
exempt-interest  dividends in a written notice mailed to the Fund's shareholders
within 60 days after the close of the Fund's taxable year. For this purpose, the
Fund will allocate  interest from  tax-exempt obligations (as  well as  ordinary
income,  capital gains and tax preference items discussed below) among the Class
A, Class B, Class  C and Class  D shareholders according to  a method (which  it
believes  is  consistent with  the Commission's  exemptive order  permitting the
issuance and sale  of multiple classes  of shares)  that is based  on the  gross
income  allocable to  the Class  A, Class  B, Class  C and  Class D shareholders
during the taxable year,  or such other method  as the Internal Revenue  Service
may  prescribe.  To the  extent  that the  dividends  distributed to  the Fund's
shareholders are derived  from interest  income exempt from  Federal income  tax
under  Code  Section  103(a),  and are  properly  designated  as exempt-interest
dividends, they will be excludable from a shareholder's gross income for Federal
income  tax  purposes.  Exempt-interest  dividends  are  included,  however,  in
determining  the portion,  if any,  of a  person's social  security benefits and
railroad retirement  benefits  subject  to Federal  income  taxes.  Interest  on
indebtedness  incurred or continued to purchase or  carry shares of a RIC paying
exempt-interest dividends, such as the Fund,  is not deductible by the  investor
for  Federal income tax purposes  and, at least to  the extent of investments by
the Fund in Arizona  Municipal Bonds, is not  deductible for Arizona income  tax
purposes. Shareholders are advised to consult their tax advisers with respect to
whether exempt-interest dividends retain the exclusion under Code Section 103(a)
if  a shareholder would be  treated as a "substantial  user" or "related person"
under Code Section 147(a) with respect to property financed with the proceeds of
an issue of "industrial development bonds" or "private activity bonds," if  any,
held by the Fund.
    

   
    The  portion  of the  Fund's  exempt-interest dividends  paid  from interest
received by the Fund  from Arizona Municipal Bonds  will be exempt from  Arizona
income tax. Shareholders subject to income taxation by states other than Arizona
will  realize a lower  after-tax rate of return  than Arizona shareholders since
the dividends  distributed by  the Fund  generally  will not  be exempt  to  any
significant  degree from  income taxation by  such other states.  The Trust will
inform shareholders annually as to the portion of the Fund's distributions which
constitutes exempt-interest  dividends  and the  portion  which is  exempt  from
Arizona  income taxes. The  Trust will allocate  exempt-interest dividends among
Class A,  Class B,  Class C  and Class  D shareholders  for Arizona  income  tax
purposes  based on a method  similar to that described  above for Federal income
tax purposes.
    

    Investment in or distributions from  investment income and capital gains  of
the  Fund, including  exempt-interest dividends,  may also  be subject  to state
taxes in states other than Arizona and  may be subject to local taxes in  cities
other  than those in Arizona. Accordingly,  investors in the Fund should consult
their tax advisers with respect to the application of such taxes to the  receipt
of Fund dividends and to the holding of shares in the Fund.

   
    To the extent that the Fund's distributions are derived from interest on its
taxable  investments or from an excess of  net short-term capital gains over net
long-term capital losses ("ordinary  income dividends"), such distributions  are
considered  ordinary income  for Federal and  Arizona income  tax purposes. Such
distributions  are  not  eligible  for  the  dividends  received  deduction  for
corporations.  Distributions, if  any, of net  long-term capital  gains from the
sale  of  securities  or  from  certain  transactions  in  futures  or   options
    

                                       44
<PAGE>
   
("capital  gains dividends")  are taxable at  long-term capital  gains rates for
Federal income tax purposes,  regardless of the length  of time the  shareholder
has  owned Fund shares and, for Arizona  income tax purposes, will be treated as
capital gains which are  taxed at ordinary income  tax rates. Under the  Revenue
Reconciliation Act of 1993, all or a portion of the Fund's gain from the sale or
redemption  of tax-exempt  obligations purchased  at a  market discount  will be
treated as ordinary income rather than capital gain. This rule may increase  the
amount  of ordinary income dividends received by shareholders. Any loss upon the
sale or  exchange of  shares held  for six  months or  less will  be treated  as
long-term  capital loss to the extent of  any capital gain dividends received by
the shareholder. In addition, such loss will be disallowed to the extent of  any
exempt-interest  dividends received by the  shareholder. Distributions in excess
of the Fund's earnings and profits will first reduce the adjusted tax basis of a
holder's shares and,  after such  adjusted tax basis  is reduced  to zero,  will
constitute  capital gains  to such  holder (assuming  the shares  are held  as a
capital asset). If the Fund pays a dividend in January which was declared in the
previous October, November or December to shareholders of record on a  specified
date  in one of such months, then such dividend will be treated for tax purposes
as being paid by the Fund and received by its shareholders on December 31 of the
year in which such dividend was declared.
    

   
    The  Code  subjects  interest  received  on  certain  otherwise   tax-exempt
securities to an alternative minimum tax. The alternative minimum tax applies to
interest  received  on "private  activity bonds"  issued  after August  7, 1986.
Private activity  bonds  are bonds  which,  although tax-exempt,  are  used  for
purposes  other than those  generally performed by  governmental units and which
benefit non-governmental entities (e.g.,  bonds used for industrial  development
or  housing purposes). Income received on such bonds is classified as an item of
"tax preference,"  which  could  subject  investors  in  such  bonds,  including
shareholders  of the Fund, to an alternative minimum tax. The Fund will purchase
such "private activity bonds" and the  Trust will report to shareholders  within
60  days after its taxable year-end the portion of the Fund's dividends declared
during the year  which constitutes  an item  of tax  preference for  alternative
minimum tax purposes. The Code further provides that corporations are subject to
an  alternative  minimum  tax based,  in  part, on  certain  differences between
taxable income  as adjusted  for  other tax  preferences and  the  corporation's
"adjusted current earnings" (which more closely reflect a corporation's economic
income).  Because an exempt-interest dividend paid  by the Fund will be included
in adjusted current earnings, a corporate shareholder therefore may be  required
to pay alternative minimum tax on exempt-interest dividends paid by the Fund.
    

   
    The  Revenue Reconciliation Act of 1993  has added new marginal tax brackets
of 36% and 39.6% for  individuals and has created  a graduated structure of  26%
and  28% for  the alternative  minimum tax  applicable to  individual taxpayers.
These rate increases may affect  an individual investor's after-tax return  from
an  investment in the Fund as compared  with such investor's return from taxable
investments.
    

   
    No gain or loss will be recognized by Class B shareholders on the conversion
of their Class B shares into Class D shares. A shareholder's basis in the  Class
D  shares acquired will be  the same as such shareholder's  basis in the Class B
shares converted, and  the holding period  of the acquired  Class D shares  will
include the holding period for the converted Class B shares.
    

   
    If a shareholder exercises an exchange privilege within 90 days of acquiring
the  shares, then the loss the shareholder can recognize on the exchange will be
reduced (or the gain increased) to the extent any sales charge paid to the  Fund
on  the exchanged  shares reduces any  sales charge such  shareholder would have
owed upon purchase of the new shares  in the absence of the exchange  privilege.
Instead, such sales charge will be treated as an amount paid for the new shares.
    

                                       45
<PAGE>
   
    A  loss  realized on  a  sale or  exchange  of shares  of  the Fund  will be
disallowed if  other Fund  shares are  acquired (whether  through the  automatic
reinvestment of dividends or otherwise) within a 61-day period beginning 30 days
before  and ending 30  days after the date  that the shares  are disposed of. In
such a case, the basis  of the shares acquired will  be adjusted to reflect  the
disallowed loss.
    

    Ordinary  income  dividends  paid  by  the  Fund  to  shareholders  who  are
nonresident aliens or foreign  entities will be subject  to a 30% United  States
withholding  tax under  existing provisions  of the  Code applicable  to foreign
individuals and entities unless a reduced  rate of withholding or a  withholding
exemption  is provided under applicable treaty law. Nonresident shareholders are
urged to consult  their own  tax advisers  concerning the  applicability of  the
United States withholding tax.

   
    Under  certain provisions of the Code, some shareholders may be subject to a
31% withholding tax  on certain ordinary  income dividends and  on capital  gain
dividends   and   redemption   payments   ("backup   withholding").   Generally,
shareholders subject to backup withholding will  be those for whom no  certified
taxpayer  identification number is on file with the Trust or who, to the Trust's
knowledge, have furnished an incorrect number. When establishing an account,  an
investor  must certify under penalty of perjury  that such number is correct and
that such investor is not otherwise subject to backup withholding.
    

    The Code  provides that  every person  required to  file a  tax return  must
include  for information purposes  on such return  the amount of exempt-interest
dividends received  from all  sources (including  the Fund)  during the  taxable
year.

ENVIRONMENTAL TAX

   
    The   Code  imposes  a  deductible  tax   (the  "Environmental  Tax")  on  a
corporation's modified minimum  taxable income (computed  without regard to  the
alternative  tax  net  operating  loss  deduction  and  the  deduction  for  the
Environmental Tax) at a rate of  $12 per $10,000 (0.12%) of alternative  minimum
taxable  income in  excess of $2,000,000.  The Environmental Tax  is imposed for
taxable years beginning after December 31, 1986 and before January 1, 1996.  The
Environmental  Tax is imposed even if the  corporation is not required to pay an
alternative minimum tax because the  corporation's regular income tax  liability
exceeds  its minimum tax liability. The Code provides, however, that a RIC, such
as the Fund, is not subject  to the Environmental Tax. However,  exempt-interest
dividends  paid by the  Fund that create alternative  minimum taxable income for
corporate shareholders under the Code (as described above) may subject corporate
shareholders of the Fund to the Environmental Tax.
    

TAX TREATMENT OF OPTION AND FUTURES TRANSACTIONS

    The Fund may write, purchase or sell municipal bond index futures  contracts
and  interest rate futures  contracts on U.S.  Government securities ("financial
futures contracts"). The Fund may also  purchase and write call and put  options
on such financial futures contracts. In general, unless an election is available
to the Fund or an exception applies, such options and futures contracts that are
"Section  1256  contracts" will  be "marked  to market"  for Federal  income tax
purposes at the  end of each  taxable year,  i.e., each such  option or  futures
contract  will be treated as sold  for its fair market value  on the last day of
the taxable year, and any gain or loss from transactions in options and  futures
contracts  will  be  60% long-term  and  40%  short-term capital  gain  or loss.
Application of these rules to Section 1256 contracts held by the Fund may  alter
the timing and character of distributions to shareholders.

                                       46
<PAGE>
   
    Code  Section 1092,  which applies  to certain  "straddles", may  affect the
taxation of the Fund's transactions  in financial futures contracts and  related
options.  Under Section 1092,  the Fund may be  required to postpone recognition
for tax purposes of losses incurred in certain closing transactions in financial
futures contracts and related options.
    

   
    One of the requirements for qualification as a RIC is that less than 30%  of
the Fund's gross income be derived from gains from the sale or other disposition
of  securities held  for less  than three months.  Accordingly, the  Fund may be
restricted in effecting closing transactions within three months after  entering
into an option or futures contract.
    

ARIZONA INCOME TAX

   
    Under  present Arizona law,  the Fund is  not subject to  any Arizona income
taxation during any fiscal year in which the Fund is classified as a diversified
management company under Section 5 of the 1940 Act and is registered as provided
in that  Act. The  Fund might  be subject  to Arizona  income taxation  for  any
taxable year in which it is not so classified and registered.
    
                              -------------------

    The  foregoing  is  a  general and  abbreviated  summary  of  the applicable
provisions of the Code, Treasury regulations  and Arizona tax laws presently  in
effect.  For the complete provisions, reference  should be made to the pertinent
Code  sections,  the  Treasury   regulations  promulgated  thereunder  and   the
applicable  Arizona income tax  laws. The Code and  the Treasury regulations, as
well as  the  Arizona  tax  laws,  are  subject  to  change  by  legislative  or
administrative action either prospectively or retroactively.

    Shareholders  are  urged to  consult their  own  tax advisers  regarding the
availability of  any exemptions  from state  or local  taxes and  with  specific
questions as to Federal, foreign, state or local taxes.

                                PERFORMANCE DATA

   
    From  time to time the Fund may  include its average annual total return and
other total  return  data,  as  well  as  yield  and  tax-equivalent  yield,  in
advertisements  or information furnished to present or prospective shareholders.
Total return and yield and tax-equivalent yield figures are based on the  Fund's
historical  performance  and are  not intended  to indicate  future performance.
Average annual total  return and yield  are determined separately  for Class  A,
Class B, Class C and Class D shares in accordance with formulas specified by the
Commission.
    

   
    Average  annual  total  return  quotations  for  the  specified  periods are
computed by finding the average annual compounded rates of return (based on  net
investment  income and  any realized and  unrealized capital gains  or losses on
portfolio investments over such  periods) that would  equate the initial  amount
invested  to the redeemable value of such  investment at the end of each period.
Average annual total return is computed assuming all dividends and distributions
are reinvested and taking into account all applicable recurring and nonrecurring
expenses, including the maximum sales charge in the case of Class A and Class  D
shares  and the CDSC  that would be  applicable to a  complete redemption of the
investment at the end  of the specified period  in the case of  the Class B  and
Class C shares.
    

    The  Fund also may quote annual,  average annual and annualized total return
and aggregate  total return  performance data,  both as  a percentage  and as  a
dollar  amount based  on a hypothetical  $1,000 investment,  for various periods
other than those  noted below. Such  data will be  computed as described  above,
except that

                                       47
<PAGE>
(1)  as required by the periods of  the quotations, actual annual, annualized or
aggregate data,  rather than  average annual  data, may  be quoted  and (2)  the
maximum  applicable sales charges will not be included with respect to annual or
annualized  rates  of  return  calculations.  Aside  from  the  impact  on   the
performance  data calculations of including  or excluding the maximum applicable
sales charges, actual annual or annualized  total return data generally will  be
lower  than average annual total  return data since the  average rates of return
reflect compounding of  return; aggregate  total return data  generally will  be
higher than average annual total return data since the aggregate rates of return
reflect compounding over a longer period of time.

   
    Set  forth  below  is  the  total return,  yield  and  tax  equivalent yield
information for Class A and Class B shares of the Fund for the period indicated.
Since Class C and Class D shares have not been issued prior to the date of  this
Statement  of Additional Information, performance information concerning Class C
and Class D shares is not yet provided.
    

   
<TABLE>
<CAPTION>
                                                                                              CLASS B SHARES
                                                                                    -----------------------------------
                                                         CLASS A SHARES                                REDEEMABLE VALUE
                                              ------------------------------------                           OF A
                                                EXPRESSED AS     REDEEMABLE VALUE     EXPRESSED AS       HYPOTHETICAL
                                                A PERCENTAGE     OF A HYPOTHETICAL    A PERCENTAGE          $1,000
                                                 BASED ON A      $1,000 INVESTMENT     BASED ON A       INVESTMENT AT
                                                HYPOTHETICAL     AT THE END OF THE    HYPOTHETICAL      THE END OF THE
                   PERIOD                     $1,000 INVESTMENT       PERIOD        $1,000 INVESTMENT       PERIOD
- --------------------------------------------  -----------------  -----------------  -----------------  ----------------
                                               AVERAGE ANNUAL TOTAL RETURN (INCLUDING MAXIMUM APPLICABLE SALES CHARGE)
<S>                                           <C>                <C>                <C>                <C>
One year ended July 31, 1994................         (2.44)%        $    975.60            (2.65)%       $     973.50
November 29, 1991 (Inception) to
 July 31, 1994..............................          6.93%         $  1,195.90             7.37%        $   1,209.20
                                                  ANNUAL TOTAL RETURN (EXCLUDING MAXIMUM APPLICABLE SALES CHARGES)
Year ended July 31, 1994....................          1.62%         $  1,016.20             1.11%        $   1,011.10
Year ended July 31, 1993....................          9.63%         $  1,096.30             9.08%        $   1,090.80
November 29, 1991 (Inception) to
 July 31, 1992..............................         11.82%         $  1,118.20            11.45%        $   1,114.50
                                                 AGGREGATE TOTAL RETURN (INCLUDING MAXIMUM APPLICABLE SALES CHARGES)
November 29, 1991 (Inception) to
 July 31, 1994..............................         19.59%         $  1,195.90            20.92%        $   1,209.20
30 days ended July 31, 1994.................          5.15%            Yield                4.86%
                                                                  Tax-Equivalent
30 days ended July 31, 1994.................           7.15    %      Yield*                 6.75    %
<FN>
- ---------
*  Based on a Federal income tax rate of 28%.
</TABLE>
    

   
    In order to  reflect the reduced  sales charges in  the case of  Class A  or
Class  D shares  or the waiver  of the CDSC  in the case  of Class B  or Class C
shares applicable to certain investors, as described under "Purchase of  Shares"
and  "Redemption of Shares",  respectively, the total return  data quoted by the
Fund in advertisements  directed to  such investors  may take  into account  the
reduced, and not the maximum, sales charge or may take into account the CDSC and
therefore  may  reflect greater  total return  since, due  to the  reduced sales
charge or the waiver of sales charges, a lower amount of expenses is deducted.
    

                                       48
<PAGE>
                              GENERAL INFORMATION

DESCRIPTION OF SHARES

   
    The Declaration  of Trust  provides that  the Trust  shall be  comprised  of
separate  Series each of which  will consist of a  separate portfolio which will
issue separate shares.  The Trust is  presently comprised of  the Fund,  Merrill
Lynch  Arkansas Municipal Bond Fund, Merrill Lynch Colorado Municipal Bond Fund,
Merrill Lynch Connecticut Municipal Bond  Fund, Merrill Lynch Florida  Municipal
Bond   Fund,  Merrill  Lynch   Maryland  Municipal  Bond   Fund,  Merrill  Lynch
Massachusetts Municipal Bond Fund, Merrill  Lynch Michigan Municipal Bond  Fund,
Merrill  Lynch Minnesota Municipal Bond Fund, Merrill Lynch New Jersey Municipal
Bond Fund, Merrill Lynch New Mexico Municipal Bond Fund, Merrill Lynch New  York
Municipal  Bond Fund, Merrill Lynch North  Carolina Municipal Bond Fund, Merrill
Lynch Ohio  Municipal  Bond Fund,  Merrill  Lynch Oregon  Municipal  Bond  Fund,
Merrill Lynch Pennsylvania Municipal Bond Fund and Merrill Lynch Texas Municipal
Bond  Fund. The Trustees are authorized to  create an unlimited number of Series
and, with respect  to each  Series, to  issue an  unlimited number  of full  and
fractional shares of beneficial interest, par value $.10 per share, of different
classes  and to divide or combine the shares  into a greater or lesser number of
shares without thereby  changing the proportionate  beneficial interests in  the
Series.   Shareholder  approval  is  not  necessary  for  the  authorization  of
additional Series or  classes of  a Series  of the Trust.  At the  date of  this
Statement  of Additional  Information, the shares  of the Fund  are divided into
Class A, Class B,  Class C and  Class D shares.  Class A, Class  B, Class C  and
Class  D  shares represent  interests in  the same  assets of  the Fund  and are
identical in all respects except  that the Class B, Class  C and Class D  shares
bear  certain expenses related to the account maintenance and/or distribution of
such shares and have exclusive voting rights with respect to matters relating to
such account and/or distribution expenditures.  The Trust has received an  order
(the  "Order") from the Commission permitting  the issuance and sale of multiple
classes of shares. The  Order permits the Trust  to issue additional classes  of
shares  of any Series if the Board of  Trustees deems such issuance to be in the
best interests of the Trust.
    

   
    All shares of the Trust have equal voting rights, except that only shares of
the respective  Series are  entitled to  vote on  matters concerning  only  that
Series  and, as  noted above,  Class B,  Class C  and Class  D shares  will have
exclusive voting  rights  with  respect  to  matters  relating  to  the  account
maintenance  and/or distribution expenses being borne solely by such class. Each
issued and outstanding share is entitled to one vote and to participate  equally
in  dividends and distributions  declared by the  Fund and in  the net assets of
such Series  upon liquidation  or dissolution  remaining after  satisfaction  of
outstanding  liabilities, except that,  as noted above,  expenses related to the
account maintenance and/or  distribution of  the Class B,  Class C  and Class  D
shares will be borne solely by such class. There normally will be no meetings of
shareholders for the purposes of electing Trustees unless and until such time as
less  than  a majority  of  the Trustees  holding  office have  been  elected by
shareholders,  at  which  time  the  Trustees   then  in  office  will  call   a
shareholders'  meeting  for  the  election  of  Trustees.  Shareholders  may, in
accordance with  the terms  of the  Declaration  of Trust,  cause a  meeting  of
shareholders  to be held for  the purpose of voting  on the removal of Trustees.
Also, the Trust will be  required to call a  special meeting of shareholders  in
accordance  with  the requirements  of  the 1940  Act  to seek  approval  of new
management and advisory  arrangements, of  a material  increase in  distribution
fees or of a change in the fundamental policies, objectives or restrictions of a
Series.
    

    The obligations and liabilities of a particular Series are restricted to the
assets  of that Series and  do not extend to the  assets of the Trust generally.
The shares of each  Series, when issued, will  be fully paid and  nonassessable,
have  no preference, preemptive, conversion, exchange or similar rights, and are
freely

                                       49
<PAGE>
transferable. Holders  of shares  of any  Series are  entitled to  redeem  their
shares  as set forth elsewhere herein and  in the Prospectus. Shares do not have
cumulative voting rights and the holders of  more than 50% of the shares of  the
Trust  voting for the election of Trustees can elect all of the Trustees if they
choose to do so and in such event the holders of the remaining shares would  not
be  able to elect any Trustees. No amendments  may be made to the Declaration of
Trust without the affirmative  vote of a majority  of the outstanding shares  of
the Trust.

    The  Manager provided the initial capital  for the Fund by purchasing 10,000
shares of the Fund  for $100,000. Such shares  were acquired for investment  and
can  only be disposed of by redemption.  The organizational expenses of the Fund
(estimated at approximately  $54,600) were paid  by the Fund  and are  amortized
over a period not exceeding five years. The proceeds realized by the Manager (or
any  subsequent  holder) upon  the  redemption of  any  of the  shares initially
purchased by  it will  be reduced  by the  proportionate amount  of  unamortized
organizational  expenses which the number of shares redeemed bears to the number
of shares initially purchased. Such  organizational expenses include certain  of
the  initial organizational expenses  of the Trust which  have been allocated to
the Fund by  the Trustees.  If additional  Series are  added to  the Trust,  the
organizational  expenses will be  allocated among the Series  in a manner deemed
equitable by the Trustees.

   
COMPUTATION OF OFFERING PRICE PER SHARE
    
   
    An illustration of  the computation of  the offering price  for Class A  and
Class B shares of the Fund based on the current offering price of the Fund's net
assets  and number of shares  outstanding on July 31,  1994, is set forth below.
Information is not provided for Class C and  Class D shares since no Class C  or
Class  D shares  were publicly offered  prior to  the date of  this Statement of
Additional Information.
    

   
<TABLE>
<CAPTION>
                                                                                                              CLASS A      CLASS B
                                                                                                            -----------  -----------
<S>                                                                                                         <C>          <C>
Net Assets................................................................................................  $18,363,001  $80,615,775
                                                                                                            -----------  -----------
                                                                                                            -----------  -----------
Number of Shares Outstanding..............................................................................    1,765,263    7,749,668
                                                                                                            -----------  -----------
                                                                                                            -----------  -----------
Net Asset Value Per Share (net assets divided by number of shares outstanding)............................  $     10.40  $     10.40
Sales Charge for Class A shares: (4.00% of offering price (4.17% of net asset value per share))*..........          .43           **
                                                                                                            -----------  -----------
Offering Price............................................................................................  $     10.83  $     10.40
                                                                                                            -----------  -----------
                                                                                                            -----------  -----------
<FN>
- ---------
 *  Rounded to the nearest  one-hundredth percent; assumes maximum sales  charge
    is applicable.
**   Class B and Class  C shares are not subject  to an initial sales charge but
    may be subject to a CDSC on redemption of shares. See "Purchase of Shares --
    Deferred Sales Charge  Alternatives -- Class  B and Class  C Shares" in  the
    Prospectus.
</TABLE>
    

INDEPENDENT AUDITORS

   
    Deloitte  & Touche LLP, 117 Campus  Drive, Princeton, New Jersey 08540-6400,
has been selected  as the  independent auditors of  the Fund.  The selection  of
independent auditors is subject to ratification by the shareholders of the Fund.
The  independent  auditors are  responsible  for auditing  the  annual financial
statements of the Fund.
    

                                       50
<PAGE>
CUSTODIAN

   
    State Street Bank  and Trust  Company, P.O. Box  351, Boston,  Massachusetts
02101,  acts as the custodian of the Fund's assets. The custodian is responsible
for safeguarding and controlling  the Fund's cash  and securities, handling  the
delivery of securities and collecting interest on the Fund's investments.
    

TRANSFER AGENT

   
    Financial  Data  Services, Inc.,  4800 Deer  Lake Drive  East, Jacksonville,
Florida 32246-6484, acts as  the Trust's transfer agent.  The Transfer Agent  is
responsible for the issuance, transfer and redemption of shares and the opening,
maintenance  and servicing of shareholder accounts. See "Management of the Trust
- -- Transfer Agency Services" in the Prospectus.
    

LEGAL COUNSEL

    Brown & Wood,  One World  Trade Center, New  York, New  York 10048-0557,  is
counsel for the Trust.

REPORT TO SHAREHOLDERS

    The fiscal year of the Fund ends on July 31 of each year. The Trust sends to
shareholders  of  the  Fund at  least  semiannually reports  showing  the Fund's
portfolio  and  other  information.  An  annual  report,  containing   financial
statements  audited by independent auditors, is  sent to shareholders each year.
After the  end  of  each  year shareholders  will  receive  Federal  income  tax
information regarding dividends and capital gains distributions.

ADDITIONAL INFORMATION

    The  Prospectus and this Statement of  Additional Information do not contain
all the information  set forth in  the Registration Statement  and the  exhibits
relating  thereto, which  the Trust has  filed with the  Securities and Exchange
Commission,  Washington,  D.C.,  under  the  Securities  Act  of  1933  and  the
Investment Company Act of 1940, to which reference is hereby made.

    The Declaration of Trust establishing the Trust dated August 2, 1985, a copy
of which, together with all amendments thereto (the "Declaration") is on file in
the  office of the Secretary of The Commonwealth of Massachusetts, provides that
the name  "Merrill  Lynch Multi-State  Municipal  Series Trust"  refers  to  the
Trustees  under the Declaration collectively as Trustees, but not as individuals
or personally; and no  Trustee, shareholder, officer, employee  or agent of  the
Trust  shall be held to any personal liability; nor shall resort be had to their
private property for the  satisfaction of any obligation  or claim of the  Trust
but the "Trust Property" only shall be liable.

   
    To  the knowledge of the Trust, no person or entity owned beneficially 5% or
more of the Fund's shares on September 30, 1994.
    

                                       51
<PAGE>
                                   APPENDIX I
                  ECONOMIC AND FINANCIAL CONDITIONS IN ARIZONA

   
    THE  INFORMATION SET FORTH BELOW IS  DERIVED FROM OFFICIAL STATEMENTS OF THE
STATE OF ARIZONA AND  OTHER SOURCES THAT GENERALLY  ARE AVAILABLE TO  INVESTORS.
SUCH  INFORMATION  CONSTITUTES  ONLY  A BRIEF  SUMMARY  OF  THE  COMPLEX FACTORS
AFFECTING THE  FINANCIAL  SITUATION  IN  ARIZONA AND  DOES  NOT  PURPORT  TO  BE
COMPLETE. THE TRUST HAS NOT INDEPENDENTLY VERIFIED THIS INFORMATION.
    

   
    Arizona's  population at the  end of 1993  totalled approximately 3,953,000,
ranking it in the top half of all  states by population. From 1980 to 1992,  the
State's population increased by 43.31%, growing an additional 2.4% in 1993. With
expected  growth  of approximately  2.4%  in 1994,  Arizona's  population should
surpass the 4  million mark. The  U.S. Census Bureau  ranked Arizona  (sometimes
referred  to  as the  "State") third  among states  in percentage  of population
growth between  1980  and 1990,  and  its overall  growth  rate is  expected  to
continue to exceed the national average through the turn of the century.
    

   
    Over  the last  several decades, the  State's economy has  grown faster than
that of states in most other regions of the country, as measured by nearly every
major indicator of economic growth, including aggregate personal income  growth,
employment  growth, gross state product and job creation. From 1987 to 1992, the
State's aggregate personal  income grew  nearly 38.2%  to approximately  $66.916
billion; the 1993 growth rate of 7.0% enabled this figure to exceed $71 billion.
During  the same 1987-92 period, the  State's total secondary assessed valuation
of property, the basis for real property tax assessments to pay debt service  on
general obligation indebtedness, increased by 13.4%.
    

   
    Although  the rate of economic growth slowed considerably in the late 1980's
and early  1990's, diversification  of the  State's economy  helped it  to  make
moderate  advances during this period and prepared the way for an upswing in the
1993-1994 period. While jobs in industries  such as mining and agriculture  have
diminished  in  relative importance  to the  State's economy  over the  past two
decades, substantial  growth  has  occurred  in the  areas  of  aerospace,  high
technology, light manufacturing, finance and insurance. Jobs in the construction
and  real estate sectors have also seen substantial growth in the past 20 years.
Though employment  in these  sectors declined  in the  late 1980's-early  1990's
period  due  to the  real estate  contraction, it  has increased  recently, with
employment in the construction industry  experiencing 11.18% growth in 1993  and
in  the real  estate industry  more than 5.0%  growth. The  State's 1993 overall
employment growth rate of 3.6% was the 11th best nationwide, causing its jobless
rate to fall  1.2% from 1992's  rate, finishing the  year at 6.2%.  Importantly,
nearly   all   sectors  have   contributed  to   the  current   strong  economy.
Manufacturing, construction, trade,  finance, insurance,  real estate,  services
and   government  were  all  up  in  1993,  with  only  mining,  transportation,
communication and public utilities failing to show improvement.
    

   
    Much of  the attention  on the  State's overall  economic condition  in  the
recent  past focused on the  sharp declines in the  real estate and construction
industries between  1985 and  1991. This  downturn  was caused  by a  number  of
factors, including overbuilding in virtually every category of real property and
the  effect of the Tax Reform Act of 1986 on real estate investments. Large real
estate-related losses, coupled with a  slowed rate of economic growth,  severely
affected  the financial services industry during this  time as well. Most of the
State's savings and loan associations in  operation in 1986, as well as  several
smaller  banks, were placed  in Federal conservatorship  and/or receivership and
forced to operate under the supervision  of agencies of the Federal  government.
Many  of  these institutions,  however, have  now been  sold to  other financial
institutions, including  large out-of-state  banks, allowing  them to  stabilize
their situations and return to profitability.
    

                                       52
<PAGE>
   
Arizona's  real estate markets began to rebound in 1990, and throughout 1993 and
into 1994 showed  improvement in  construction, office vacancy  rates and  other
related  indicators. In addition, financial difficulties encountered by three of
the  State's  largest  employers  --  America  West  Airlines,  Inc.,  Circle  K
Corporation,  and Tucson Electric  Power Company --  have been resolved. America
West Airlines emerged from Chapter 11 bankruptcy proceedings in August 1994  and
reported  the highest quarterly profit in its  history for the second quarter of
1994. Circle K Corporation completed its Chapter 11 reorganization in June  1993
and,  in  April 1994,  reported  its first  profitable  year since  1989. Tucson
Electric Power underwent a major financial  restructuring in 1992 and, in  1993,
achieved its strongest financial results in four years.
    

   
    The  Arizona  State government's  fiscal  situation has  improved  in recent
years. After experiencing several years of budget shortfalls, requiring  midyear
adjustments,  the  State had  budget surpluses  of $86  million for  fiscal year
1992-93 and approximately $110 million for  fiscal year 1993-94, based on  total
state  budgets of $3.7  billion and $3.8  billion, respectively. The Legislature
enacted a personal income tax reduction  of approximately $107 million in  1994,
in part owing to the improved fiscal picture.
    

   
    The  Phoenix Metropolitan Statistical Area  has mirrored the State's current
economic upturn. The Phoenix MSA lies within Maricopa County -- which contains a
majority of the  State's population, nonagricultural  employment, and  aggregate
personal  income -- and includes  the City of Phoenix,  the State's largest city
and the ninth largest in the United States, as well as the cities of Scottsdale,
Tempe, Mesa, Chandler, and Peoria, and the Towns of Paradise Valley and Gilbert.
Good transportation facilities, a substantial pool of available labor, a variety
of support industries  and a warm  climate have  helped make the  Phoenix MSA  a
major business center in the southwestern United States. The site of many of the
State's  leading  advanced  technology  companies,  the  Metro-Phoenix  area has
experienced  recent  growth  in  population   (building  upon  an  increase   of
approximately  49.3% between  1980 and the  fourth quarter  of 1992), employment
(fifth in  the  nation  for  all  of 1993  among  top  metro  markets),  housing
construction  (up over 30% from 1993 through the first half of 1994), industrial
construction (nearly 1  million square feet  currently being developed),  office
occupancy  rates, and retail sales (up 7.9%  from 1993 through the first half of
1994).
    

   
    Offsetting the  favorable  economic  developments  in  the  private  sector,
however,  are  the recent  financial problems  affecting  Maricopa County.  As a
result of  expenditures  in  excess  of  budgeted  amounts,  the  County  had  a
cumulative budget shortfall of $64.2 million as of June 30, 1994, the end of its
1993-94 fiscal year, and is expected to raise property taxes or reduce its staff
and  services, or both, and to refinance some of its outstanding indebtedness in
the near  future. Its  bonded indebtedness  was recently  downgraded to  "A"  by
Moody's and Standard & Poor's.
    

   
    In  addition, the Arizona Supreme Court recently declared the State's system
of funding  for  public  schools  primarily with  local  property  taxes  to  be
"unequal",  and  therefore  unconstitutional,  because  of  disparities  in  the
assessed values  of property  in  the local  districts notwithstanding  a  State
equalization payment program that was implemented in 1980. The Supreme Court has
directed  the Arizona  Legislature to  develop and submit  to the  courts a more
equitable system within a  reasonable time, but  specifically ruled that  school
district  bonds presently outstanding and those issued prior to the enactment of
legislative revisions would continue to be valid and enforceable. No information
is currently  available  regarding  the  nature or  timing  of  any  legislative
response.
    

                                       53
<PAGE>
                                  APPENDIX II
                           RATINGS OF MUNICIPAL BONDS

DESCRIPTION OF MOODY'S INVESTORS SERVICE, INC.'S ("MOODY'S") MUNICIPAL BOND
RATINGS

<TABLE>
<S>        <C>
Aaa        Bonds  which are  rated Aaa are  judged to  be of the  best quality.  They carry the
           smallest degree of  investment risk and  are generally referred  to as "gilt  edge".
           Interest  payments are protected by a large or by an exceptionally stable margin and
           principal is secure.  While the various  protective elements are  likely to  change,
           such  changes as  can be  visualized are most  unlikely to  impair the fundamentally
           strong position of such issues.
Aa         Bonds which are rated Aa are judged to be of high quality by all standards. Together
           with the Aaa group they comprise what are generally known as high grade bonds.  They
           are  rated lower  than the best  bonds because margins  of protection may  not be as
           large as in Aaa securities or fluctuation  of protective elements may be of  greater
           amplitude  or there  may be  other elements present  which make  the long-term risks
           appear somewhat larger than in Aaa securities.
A          Bonds which are rated A possess many  favorable investment attributes and are to  be
           considered  as upper medium grade obligations.  Factors giving security to principal
           and interest are considered  adequate, but elements may  be present which suggest  a
           susceptibility to impairment sometime in the future.
Baa        Bonds which are rated Baa are considered as medium grade obligations; i.e., they are
           neither highly protected nor poorly secured. Interest payment and principal security
           appear  adequate for the present  but certain protective elements  may be lacking or
           may be characteristically unreliable over any great length of time. Such bonds  lack
           outstanding  investment characteristics and in fact have speculative characteristics
           as well.
Ba         Bonds which  are rated  Ba are  judged to  have speculative  elements; their  future
           cannot be considered as well assured. Often the protection of interest and principal
           payments  may be very moderate and thereby not well safeguarded during both good and
           bad times  over the  future. Uncertainty  of position  characterizes bonds  in  this
           class.
B          Bonds  which are rated B generally lack characteristics of the desirable investment.
           Assurance of interest and principal payment or of maintenance of other terms of  the
           contract over any long period of time may be small.
Caa        Bonds  which are rated  Caa are of poor  standing. Such issues may  be in default or
           there may be present elements of danger with respect to principal or interest.
Ca         Bonds which  are rated  Ca represent  obligations which  are speculative  in a  high
           degree. Such issues are often in default or have other marked shortcomings.
C          Bonds which are rated C are the lowest rated class of bonds, and issues so rated can
           be regarded as having extremely poor prospects of ever attaining any real investment
           standing.
<FN>
    Note:  Those bonds in the Aa, A, Baa, Ba and B groups which Moody's believes
possess the strongest investment attributes  are designated by the symbols  Aa1,
A1, Baa1, Ba1 and B1.
</TABLE>

                                       54
<PAGE>
    SHORT-TERM  NOTES:  The four  ratings of  Moody's  for short-term  notes are
MIG1/VMIG1, MIG 2/VMIG2, MIG 3/VMIG3 and MIG 4/VMIG4; MIG 1/VMIG1 denotes  "best
quality  . . . strong protection by established cash flows"; MIG 2/VMIG2 denotes
"high quality"  with ample  margins  of protection;  MIG  3/VMIG3 notes  are  of
"favorable  quality .  . .  but .  . .  lacking the  undeniable strength  of the
preceding grades"; MIG 4/VMIG4 notes are of "adequate quality . . . [p]rotection
commonly regarded as required of an investment  security is present . . .  there
is specific risk."

DESCRIPTION OF MOODY'S CORPORATE BOND RATINGS

    Excerpts  from Moody's  description of  its corporate  bond ratings:  Aaa --
judged to be the best quality, carry the smallest degree of investment risk;  Aa
- --  judged to be of  high quality by all standards;  A -- possess many favorable
investment  attributes  and  are  to   be  considered  as  upper  medium   grade
obligations;  Baa  --  considered on  medium  grade obligations,  i.e.  they are
neither highly protected nor poorly secured.

DESCRIPTION OF MOODY'S COMMERCIAL PAPER RATINGS

    Moody's Commercial Paper ratings are opinions  of the ability of issuers  to
repay  punctually  promissory obligations  not  having an  original  maturity in
excess of nine  months. Moody's  employs the following  three designations,  all
judged  to be investment  grade, to indicate the  relative repayment capacity of
rated issuers:

    Issuers rated Prime-1 (or related  supporting institutions) have a  superior
capacity  for repayment of short-term  promissory obligations. Prime-1 repayment
capacity will normally  be evidenced by  the following characteristics:  leading
market  positions in well established industries;  high rates of return on funds
employed; conservative capitalization structures with moderate reliance on  debt
and  ample  asset  protection;  broad  margins  in  earnings  coverage  of fixed
financial charges and high internal cash generation; and well established access
to a range of financial markets and assured sources of alternate liquidity.

    Issuers rated Prime-2  (or related  supporting institutions)  have a  strong
capacity  for repayment of short-term promissory obligations. This will normally
be evidenced by many of the characteristics cited above but to a lesser  degree.
Earnings  trends  and coverage  ratios,  while sound,  will  be more  subject to
variation. Capitalization characteristics, while still appropriate, may be  more
affected by external conditions. Ample alternate liquidity is maintained.

    Issuers   rated  Prime-3  (or  related   supporting  institutions)  have  an
acceptable capacity  for repayment  of  short-term promissory  obligations.  The
effects   of  industry  characteristics  and  market  composition  may  be  more
pronounced. Variability in earnings and  profitability may result in changes  in
the  level of  debt protection measurements  and the  requirement for relatively
high financial leverage. Adequate alternate liquidity is maintained.

    Issuers rated  Not  Prime  do  not  fall within  any  of  the  Prime  rating
categories.

DESCRIPTION OF STANDARD & POOR'S CORPORATION'S ("STANDARD & POOR'S") MUNICIPAL
DEBT RATINGS

    A  Standard & Poor's  municipal debt rating  is a current  assessment of the
creditworthiness of  an obligor  with  respect to  a specific  obligation.  This
assessment may take into consideration obligors such as guarantors, insurers, or
lessees.

    The  debt  rating  is not  a  recommendation  to purchase,  sell  or  hold a
security, inasmuch as it does not comment as to market price or suitability  for
a particular investor.

                                       55
<PAGE>
    The  ratings are  based on  current information  furnished by  the issuer or
obtained by Standard  & Poor's from  other sources Standard  & Poor's  considers
reliable.  Standard & Poor's  does not perform  an audit in  connection with any
rating and  may,  on occasion,  rely  on unaudited  financial  information.  The
ratings  may be changed,  suspended or withdrawn  as a result  of changes in, or
unavailability of, such information, or for other circumstances.

    The ratings are based, in varying degrees, on the following considerations:

         I. Likelihood of default -- capacity and willingness of the obligor  as
    to  the timely payment of interest  and repayment of principal in accordance
    with the terms of the obligation;

        II. Nature of and provisions of the obligation;

        III. Protection afforded to, and relative position of, the obligation in
    the event of bankruptcy, reorganization or other arrangement under the  laws
    of bankruptcy and other laws affecting creditor's rights.

<TABLE>
<S>        <C>
AAA        Debt  rate "AAA" has the highest rating assigned by Standard & Poor's. Capacity to
           pay interest and repay principal is extremely strong.
AA         Debt rated "AA" has a very strong capacity to pay interest and repay principal and
           differs from the higher rated issues only in small degree.
A          Debt rated "A" has a strong capacity to pay interest and repay principal  although
           it is somewhat more susceptible to the adverse effects of changes in circumstances
           and economic conditions than debt in higher rated categories.
BBB        Debt  rated "BBB" is regarded  as having an adequate  capacity to pay interest and
           repay principal.  Whereas it  normally  exhibits adequate  protection  parameters,
           adverse economic conditions or changing circumstances are more likely to lead to a
           weakened  capacity to pay interest  and repay principal for  debt in this category
           than for debt in higher rated categories.
BB         Debt rated "BB",  "B", "CCC" and  "CC" is regarded,  on balance, as  predominantly
B          speculative  with  respect to  capacity  to pay  interest  and repay  principal in
CCC        accordance with the terms of the obligations. "BB" indicates the lowest degree  of
CC         speculation and "C" the highest degree of speculation. While such debt will likely
C          have  some quality and  protective characteristics, these  are outweighed by large
           uncertainties or major risk exposures to adverse conditions.
CI         The rating "C" is reserved for income bonds on which no interest is being paid.
D          Debt rated  "D" is  in  payment default.  The "D"  rating  category is  used  when
           interest  payments or principal payments are not made  on the date due even if the
           applicable grace period has  not expired, unless Standard  & Poor's believes  that
           such  payments will be made during such grace  period. The "D" rating also will be
           used upon  the  filing of  a  bankruptcy petition  if  debt service  payments  are
           jeopardized.
</TABLE>

    Plus (+) or Minus (-): The ratings from "AA" to "CCC" may be modified by the
addition  of a  plus or minus  sign to  show relative standing  within the major
rating categories.

                                       56
<PAGE>
DESCRIPTION OF STANDARD & POOR'S CORPORATE BOND RATINGS

    A Standard &  Poor's corporate debt  rating is a  current assessment of  the
creditworthiness of an obligor with respect to a specific obligation. Debt rated
"AAA"  has the  highest rating  assigned by Standard  & Poor's.  Capacity to pay
interest and repay  principal is extremely  strong. Debt rated  "AA" has a  very
strong  capacity to  pay interest  and to repay  principal and  differs from the
highest rated issues only in small degree. Debt rated "A" has a strong  capacity
to  pay interest and repay principal although it is somewhat more susceptible to
the adverse effects of changes in  circumstances and economic conditions than  a
debt  of a  higher rated  category. Debt  rated "BBB"  is regarded  as having an
adequate capacity  to pay  interest  and repay  principal. Whereas  it  normally
exhibits adequate protection parameters, adverse economic conditions or changing
circumstances are more likely to lead to a weakened capacity to pay interest and
repay principal for debt in this category than in higher rated categories.

    The  ratings from "AA" to "BBB" may be modified by the addition of a plus or
minus sign to show relative standing within the major rating categories.

DESCRIPTION OF STANDARD & POOR'S COMMERCIAL PAPER RATINGS

    A Standard & Poor's Commercial Paper  Rating is a current assessment of  the
likelihood of timely payment of debt having an original maturity of no more than
365  days. Ratings  are graded  into four categories,  ranging from  "A" for the
highest quality obligations  to "D" for  the lowest. Ratings  are applicable  to
both taxable and tax-exempt commercial paper. Issues assigned the highest rating
are  regarded as having the greatest capacity for timely payment. Issues in this
category are further refined with  the designations 1, 2  and 3 to indicate  the
relative  degree of safety.  The three designations  in the "A"  category are as
follows:

<TABLE>
<S>        <C>
A-1        This designation indicates that the degree  of safety regarding timely payment  is
           strong. Those issues determined to possess extremely strong safety characteristics
           are denoted with a plus sign (+) designation.
A-2        Capacity  for timely payment  on issues with this  designation is strong. However,
           the relative degree  of safety  is not as  overwhelming as  for issues  designated
           "A-1".
A-3        Issues  carrying this designation have a satisfactory capacity for timely payment.
           They are, however, somewhat more vulnerable  to the adverse effects of changes  in
           circumstances than obligations carrying the higher designations.
B          Issues  rated  "B" are  regarded as  having only  speculative capacity  for timely
           payment.
C          This rating is assigned  to short-term debt obligations  with a doubtful  capacity
           for payment.
D          Debt  rated  "D" is  in  payment default.  The "D"  rating  category is  used when
           interest payments or principal payments are not made on the date due, even if  the
           applicable  grace period has  not expired, unless S&P  believes that such payments
           will be made during such grace period.
</TABLE>

    A Commercial Paper  Rating is  not a recommendation  to purchase  or sell  a
security.  The ratings are based on  current information furnished to Standard &
Poor's by the issuer  and obtained by  Standard & Poor's  from other sources  it
considers  reliable. The  ratings may be  changed, suspended, or  withdrawn as a
result of changes in, or unavailability of, such information.

                                       57
<PAGE>
    A Standard & Poor's note rating  reflects the liquidity concerns and  market
access risks unique to notes. Notes due in 3 years or less will likely receive a
note  rating. Notes maturing beyond 3 years will most likely receive a long-term
debt rating. The following criteria will be used in making that assessment.

    -- Amortization schedule (the  larger the final  maturity relative to  other
       maturities, the more likely it will be treated as a note).

    -- Source  of payment (the more dependent the issue is on the market for its
       refinancing, the more likely it will be treated as a note).

    Note rating symbols are as follows:

    SP-1  A very strong or strong capacity to pay principal and interest.  Those
          issues  determined to possess overwhelming safety characteristics will
          be given a "+" designation.

    SP-2  A satisfactory capacity to pay principal and interest.

    SP-3  A speculative capacity to pay principal and interest.

    Standard & Poor's may continue to  rate note issues with a maturity  greater
than three years in accordance with the same rating scale currently employed for
municipal bond ratings.

    UNRATED:  Where  no rating  has been  assigned  or where  a rating  has been
suspended or withdrawn, it may  be for reasons unrelated  to the quality of  the
issue.

    Should no rating be assigned, the reason may be one of the following:

        1.  An application for rating was not received or accepted.

        2.   The issue or issuers belongs to  a group of securities that are not
    rated as a matter of policy.

        3.  There is a lack of essential data pertaining to the issue or issuer.

        4.  The  issue was privately  placed, in  which case the  rating is  not
    published in Moody's publications.

    Suspension  or withdrawal may occur if new and material circumstances arise,
the effects  of which  preclude satisfactory  analysis; if  there is  no  longer
available  reasonable up-to-date information to permit  a judgment to be formed;
if a bond is called for redemption; or for other reasons.

DESCRIPTION OF FITCH INVESTORS SERVICE, INC.'S ("FITCH") INVESTMENT GRADE BOND
RATINGS

    Fitch investment  grade  bond  ratings  provide  a  guide  to  investors  in
determining  the credit risk associated with  a particular security. The ratings
represent Fitch's assessment of the issuer's ability to meet the obligations  of
a specific debt issue or class of debt in a timely manner.

    The  rating  takes into  consideration special  features  of the  issue, its
relationship to other  obligations of  the issuer, the  current and  prospective
financial  condition  and  operating  performance  of  the  issuer  and  of  any
guarantor, as well as the economic  and political environment that might  affect
the issuer's future financial strength and credit quality.

                                       58
<PAGE>
    Fitch  ratings do not reflect any credit enhancement that may be provided by
insurance policies or financial guaranties unless otherwise indicated.

    Bonds that have the same rating are of similar but not necessarily identical
credit  quality  since  the  rating  categories  do  not  fully  reflect   small
differences in the degrees of credit risk.

    Fitch  ratings are not  recommendations to buy, sell,  or hold any security.
Ratings do not comment on the adequacy  of market price, the suitability of  any
security  for a particular  investor, or the tax-exempt  nature or taxability of
payments made in respect of any security.

    Fitch  ratings  are  based  on  information  obtained  from  issuers,  other
obligors,  underwriters, their experts,  and other sources  Fitch believes to be
reliable. Fitch  does  not  audit  or  verify the  truth  or  accuracy  of  such
information.  Ratings may  be changed,  suspended, or  withdrawn as  a result of
changes in, or the unavailability of, information or for other reasons.

<TABLE>
<S>        <C>
AAA        Bonds considered  to be  investment grade  and of  the highest  credit quality.  The
           obligor  has an  exceptionally strong ability  to pay interest  and repay principal,
           which is unlikely to be affected by reasonably forseeable events.
AA         Bonds considered to  be investment  grade and of  very high  quality. The  obligor's
           ability  to pay interest and  repay principal is very  strong, although not quite as
           strong as bonds rated "AAA".  Because bonds rated in  the "AAA" and "AA"  categories
           are not significantly vulnerable to foreseeable future developments, short-term debt
           of these issuers is generally rated "F-1+".
A          Bonds  considered to be investment  grade and of high  credit quality. The obligor's
           ability to pay interest and repay principal  is considered to be strong, but may  be
           more  vulnerable to  adverse changes in  economic conditions  and circumstances than
           bonds with higher ratings.
BBB        Bonds considered to  be investment  grade and  of satisfactory  credit quality.  The
           obligor's  ability to pay interest and repay principal is considered to be adequate.
           Adverse changes in economic conditions  and circumstances, however, are more  likely
           to  have adverse impact  on these bonds,  and therefore, impair  timely payment. The
           likelihood that  the ratings  of these  bonds will  fall below  investment grade  is
           higher than for bonds with higher ratings.
</TABLE>

    Plus  (+) Minus (-)  Plus and minus signs  are used with  a rating symbol to
indicate the relative position of a credit within the rating category. Plus  and
minus signs, however, are not used in the "AAA" category.

    Credit   Trend  Indicator:  Credit  trend  indicators  show  whether  credit
fundamentals are improving, stable, declining, or uncertain, as follows:

<TABLE>
<S>          <C>
Improving    up arrow
Stable       left and right arrows
Declining    down arrow
Uncertain    up and down arrows
</TABLE>

                                       59
<PAGE>
    Credit trend  indicators are  not predictions  that any  rating change  will
occur, and have a longer-term time frame than issues placed on Fitch Alert.

<TABLE>
<S>               <C>
NR                Indicates that Fitch does not rate the specific issue.

Conditional       A conditional rating is premised on the successful completion of a project
                  or the occurrence of a specific event.

Suspended:        A rating is suspended when Fitch deems the amount of information available
                  from the issuer to be inadequate for rating purposes.

Withdrawn         A  rating  will  be  withdrawn  when an  issue  matures  or  is  called or
                  refinanced and, at  Fitch's discretion,  when an issuer  fails to  furnish
                  proper and timely information.

FitchAlert        Ratings  are placed  on FitchAlert to  notify investors  of the occurrence
                  that is likely to result  in a rating change  and the likely direction  of
                  such  change. These  are designated  as "Positive"  indicating a potential
                  upgrade, "Negative" for potential  downgrade, or "Evolving" where  ratings
                  may  be raised or lowered. FitchAlert is relatively short-term, and should
                  be resolved within 12 months.
</TABLE>

DESCRIPTION OF FITCH SPECULATIVE GRADE BOND RATINGS

    Fitch speculative  grade  bond  ratings  provide a  guide  to  investors  in
determining  the credit risk associated with  a particular security. The ratings
("BB" to "C") represent Fitch's assessment  of the likelihood of timely  payment
of  principal and interest in  accordance with the terms  of obligation for bond
issues not in  default. For defaulted  bonds, the  rating ("DDD" to  "D") is  an
assessment of the ultimate recovery value through reorganization or liquidation.

    The  rating  takes into  consideration special  features  of the  issue, its
relationship to other  obligations of  the issuer, the  current and  prospective
financial  condition and operating performance of  the issuer and any guarantor,
as well as the economic and political environment that might affect the issuer's
future financial strength.

    Bonds that have the same rating are of similar but not necessarily identical
credit quality since rating categories  cannot fully reflect the differences  in
degrees of credit risk.

<TABLE>
<S>                 <C>
BB                  Bonds  are considered speculative. The obligor's ability to pay interest
                    and repay  principal  may be  affected  over time  by  adverse  economic
                    changes.  However, business and financial alternatives can be identified
                    which  could  assist  the  obligor   in  satisfying  its  debt   service
                    requirements.
B                   Bonds  are considered highly speculative. While  bonds in this class are
                    currently  meeting  debt  service   requirements,  the  probability   of
                    continued   timely  payment  of  principal  and  interest  reflects  the
                    obligor's limited margin of safety and the need for reasonable  business
                    and economic activity throughout the life of the issue.
CCC                 Bonds  have certain identifiable characteristics which, if not remedied,
                    may lead  to  default.  The  ability to  meet  obligations  requires  an
                    advantageous business and economic environment.
CC                  Bonds  are minimally  protected. Default  in payment  of interest and/or
                    principal seems probable over time.
</TABLE>

                                       60
<PAGE>
<TABLE>
<S>                 <C>
C                   Bonds are in imminent default in payment of interest or principal.
DDD, DD, and D      Bonds are in default on  interest and/or principal payments. Such  bonds
                    are  extremely speculative  and should be  valued on the  basis of their
                    ultimate recovery value in liquidation or reorganization of the obligor.
                    "DDD" represents the highest potential for recovery on these bonds,  and
                    "D" represents the lowest potential for recovery.
</TABLE>

    Plus (+) or Minus (-): Plus and minus signs are used with a rating symbol to
indicate  the relative position of a credit within the rating category. Plus and
minus signs, however, are not used in the "DDD", "DD", or "D" categories.

DESCRIPTION OF FITCH INVESTMENT GRADE SHORT-TERM RATINGS

    Fitch's short-term ratings  apply to  debt obligations that  are payable  on
demand  or have  original maturities of  generally up to  three years, including
commercial paper, certificates of deposit, medium-term notes, and municipal  and
investment notes.

    The short-term rating places greater emphasis than a long-term rating on the
existence  of liquidity necessary  to meet the issuer's  obligations in a timely
manner.

    Fitch short-term ratings are as follows:

<TABLE>
<S>                 <C>
F-1+                Exceptionally Strong Credit Quality. Issues assigned this rating are
                    regarded as  having the  strongest degree  of assurance  for  timely
                    payment.
F-1                 Very  Strong Credit Quality. Issues  assigned this rating reflect an
                    assurance of timely payment only slightly less in degree than issues
                    rated "F-1+".
F-2                 Good Credit Quality. Issues assigned this rating have a satisfactory
                    degree of assurance for timely payment, but the margin of safety  is
                    not as great as the "F-1+" and "F-1" ratings.
F-3                 Fair    Credit   Quality.   Issues   assigned   this   rating   have
                    characteristics suggesting that the  degree of assurance for  timely
                    payment  is adequate, however, near-term adverse changes could cause
                    these securities to be rated below investment grade.
F-S                 Weak   Credit   Quality.   Issues   assigned   this   rating    have
                    characteristics  suggesting a minimal degree of assurance for timely
                    payment and are vulnerable to near-term adverse changes in financial
                    and economic conditions.
D                   Default. Issues  carrying  this rating  are  in actual  or  imminent
                    payment default.
LOC                 The  symbol, LOC, indicates that the rating  is based on a letter of
                    credit issued by a commercial bank.
</TABLE>

                                       61
<PAGE>
INDEPENDENT AUDITORS' REPORT

The Board of Trustees and Shareholders,
Merrill Lynch Arizona Municipal Bond Fund of
Merrill Lynch Multi-State Municipal Series Trust:

   
We  have audited the accompanying statement of assets and liabilities, including
the schedule of  investments, of Merrill  Lynch Arizona Municipal  Bond Fund  of
Merrill  Lynch  Multi-State Municipal  Series  Trust as  of  July 31,  1994, the
related statements of  operations for  the year then  ended and  changes in  net
assets  for  each  of the  years  in the  two-year  period then  ended,  and the
financial highlights for each of the years in the two-year period then ended and
for the period November 29, 1991 (commencement of operations) to July 31,  1992.
These  financial statements and the  financial highlights are the responsibility
of the Fund's management. Our responsibility  is to express an opinion on  these
financial statements and the financial highlights based on our audits.
    

   
We   conducted  our  audits  in  accordance  with  generally  accepted  auditing
standards. Those standards require that we plan and perform the audit to  obtain
reasonable  assurance about whether  the financial statements  and the financial
highlights are free of material misstatement. An audit includes examining, on  a
test  basis, evidence  supporting the amounts  and disclosures  in the financial
statements. Our procedures included confirmation of securities owned at July 31,
1994 by correspondence with the custodian. An audit also includes assessing  the
accounting principles used and significant estimates made by management, as well
as  evaluating the overall financial statement presentation. We believe that our
audits provide a reasonable basis for our opinion.
    

   
In our  opinion,  such financial  statements  and financial  highlights  present
fairly,  in  all  material respects,  the  financial position  of  Merrill Lynch
Arizona Municipal Bond Fund of Merrill Lynch Multi-State Municipal Series  Trust
as  of July  31, 1994,  the results of  its operations,  the changes  in its net
assets, and  the  financial highlights  for  the respective  stated  periods  in
conformity with generally accepted accounting principles.
    

   
DELOITTE & TOUCHE LLP
Princeton, New Jersey
August 29, 1994
    

                                       62
<PAGE>
                      (This Page Intentionally Left Blank)
<PAGE>

SCHEDULE OF INVESTMENTS

<TABLE>
<CAPTION>                                                                                                        (in Thousands)
S&P     Moody's  Face                                                                                                Value
Ratings Ratings Amount                                   Issue                                                     (Note 1a)

Arizona--90.9%
<C>       <C>   <C>       <S>                                                                                    <C>
                          Apache County, Arizona, Public Finance Corporation, COP:
A         A     $1,425      5.50% due 5/01/2007                                                                     $ 1,418
A         A        500      5.50% due 5/01/2010                                                                         477

                          Arizona Educational Loan Marketing Corporation, Educational Loan Revenue Bonds,
                          AMT, Series B:
NR        A      1,600      7% due 3/01/2003                                                                          1,699
NR        A      1,100      7% due 3/01/2005                                                                          1,165

NR        A        750    Arizona Educational Loan Marketing Corporation, Educational Loan Revenue Bonds, AMT,
                          Sub-Series, 6.625% due 9/01/2005                                                              782

AAA       Aaa    1,750    Arizona Health Facilities Authority, Hospital Systems Revenue Bonds (Samaritan Health
                          Services), 6.25% due 12/01/2006 (d)                                                         1,829

NR        Ba     2,415    Arizona Health Facilities Authority, Hospital Systems Revenue Refunding Bonds (Saint
                          Luke's Health Systems), 7.25% due 11/01/2014                                                2,442

AAA       Aaa      245    Arizona Health Facilities Authority Revenue Bonds (Yavapai Community Hospital),
                          Series B, 7.25% due 10/01/2013 (b)                                                            266

A+        A        850    Arizona State University, COP (Towers Project), 7.05% due 7/01/2010                           909

AA        A1     2,750    Arizona State University, Revenue Refunding Bonds, Series A, 5.50% due 7/01/2019            2,520

NR        A      2,000    Arizona Student Loan Acquisition Authority, Student Loan Revenue Bonds, AMT, Senior
                          Series B, 6.60% due 5/01/2010                                                               2,039

AA        Aaa    1,000    Arizona Transportation Board, Highway Revenue Bonds, Sub-Series B, 6.50% due
                          7/01/2011 (e)                                                                               1,091

AA+       Aa     2,000    Arizona Wastewater Management Authority, Wastewater Treatment Financial Assistance
                          Revenue Bonds, 6.80% due 7/01/2011                                                          2,164

AAA       Aaa      700    Avondale, Arizona, Municipal Development Corporation, Municipal Facilities Revenue
                          Bonds, 6.625% due 7/01/2011 (d)                                                               735

AA-       A1     1,940    Central Arizona, Water Conservation District, Contract Revenue Bonds (Central Arizona
                          Project), Series B, 6.50% due 5/01/2001 (e)                                                 2,123

                          Coconino and Yavapai Counties, Arizona, Joint Unified School District No. 9 Revenue
                          Bonds (Sedona Oak Creek), Series A, UT:
A-        Baa1     200      6.70% due 7/01/2006                                                                         210
A-        Baa1     250      6.75% due 7/01/2007                                                                         259

AAA       NR     2,100    Coconino County, Arizona, IDA, IDR (Citizens Utilities Company Project), AMT,
                          5.80% due 11/15/2028                                                                        2,027
</TABLE>

PORTFOLIO ABBREVIATIONS

To simplify the listings of Merrill Lynch Arizona Municipal Bond
Fund's portfolio holdings in the Schedule of Investments, we have
abbreviated the names of many of the securities according to the
list below and at right.


AMT            Alternative Minimum Tax (subject to)
COP            Certificates of Participation
GO             General Obligation Bonds
IDA            Industrial Development Authority
IDR            Industrial Development Revenue Bonds
M/F            Multi-Family
PCR            Pollution Control Revenue Bonds
RIB            Residual Interest Bonds
STRIPES        Short-Term Rate Inverse Payment Exempt Securities
UT             Unlimited Tax
VRDN           Variable Rate Demand Notes
YCN            Yield Curve Notes


                                       63
<PAGE>

SCHEDULE OF INVESTMENTS (continued)

<TABLE>
<CAPTION>                                                                                                        (in Thousands)
S&P     Moody's  Face                                                                                                Value
Ratings Ratings Amount                                   Issue                                                     (Note 1a)

Arizona (continued)
<C>       <C>   <C>       <S>                                                                                    <C>
AAA       Aaa   $3,520    Gilbert, Arizona, Water and Sewer Revenue Refunding Bonds, 6.50% due 7/01/2022 (b)        $ 3,647

A         A3     4,000    Greenlee County, Arizona, IDA, PCR, Refunding (Phelps Dodge Corporation Project),
                          5.45% due 6/01/2009                                                                         3,785

AAA       Aaa    2,000    Maricopa County, Arizona, IDA, Health Facilities Revenue Bonds (Saint Joseph's Care
                          Center Project), Series A, 7.75% due 7/01/2020 (d)                                          2,229

                          Maricopa County, Arizona, IDA, Hospital Facilities Revenue Refunding Bonds:
AAA       Aaa    2,800      (John C. Lincoln Hospital), 7.50% due 12/01/2013 (c)                                      3,149
AAA       Aaa      750      (Samaritan Health Services), Series A, 7% due 12/01/2013 (d)                                819

BB        Ba2    1,000    Maricopa County, Arizona, Pollution Control Corporation, PCR, Refunding (Public
                          Service Company--Palo Verde), Series A, 6.375% due 8/15/2023                                  922

AA        A1     1,900    Maricopa County, Arizona, School District No. 3 Revenue Bonds (Tempe Elementary
                          Projects of 1991), Series C, UT, 6% due 7/01/2011                                           1,923

AAA       Aaa      500    Maricopa County, Arizona, Unified School District No. 11--Peoria, Revenue Refunding
                          Bonds, 6.40% due 7/01/2010 (d)                                                                517

AAA       Aaa    2,000    Mesa, Arizona, IDA, Health Care Facilities Revenue Bonds (Western Health Network),
                          Series A-1, 7.625% due 1/01/2019 (a)                                                        2,206

AAA       Aaa    2,325    Mohave County, Arizona, Unified High School District No. 30--Mohave Revenue Bonds,
                          Series B, UT, 6.70% due 7/01/2011 (b)(e)                                                    2,562

AAA       NR     1,000    Navajo County, Arizona, IDA, IDR (Citizens Utilities Company Project), AMT, 5.80%
                          due 11/15/2028                                                                                965

AAA       Aaa    1,000    Navajo County, Arizona, Pollution Control Corporation, Revenue Refunding Bonds
                          (Arizona Public Service Corporation), Series A, 5.50% due 8/15/2028 (h)                       904

                          Peoria, Arizona, Improvement District, Special Assessment Bonds:
BBB       NR       430      7.20% due 1/01/2010                                                                         450
BBB       NR       510      7.20% due 1/01/2013                                                                         533

                          Peoria, Arizona, Improvement District, Special Assessment Bonds (North Valley Power
                          Center No. 8801):
BBB       NR       200      7.30% due 1/01/2009                                                                         214
BBB       NR       395      7.30% due 1/01/2011                                                                         423

AAA       Aaa    1,000    Peoria, Arizona, Municipal Development Authority, Municipal Facilities Revenue
                          Refunding Bonds, 5.20% due 7/01/2013 (d)                                                      904

AAA       Aaa    1,000    Peoria, Arizona, Water and Sewer Revenue Refunding Bonds, 6.625% due 7/01/2006 (b)          1,060

                          Phoenix, Arizona, Civic Improvement Corporation, Excise Tax Revenue Bonds:
AA+       Aa     2,000      (New City Hall Project), Senior Lien, 5.10% due 7/01/2018                                 1,741
AA+       Aa       750      Refunding (Airport Improvements), Series B, 6.30% due 7/01/2014                             765

AA        A1     1,000    Phoenix, Arizona, Civic Improvement Corporation, Water System Revenue Bonds, Junior
                          Lien, 5.40% due 7/01/2014                                                                     912

AA+       Aa     1,860    Phoenix, Arizona, GO, Refunding, AMT, UT, 6.375% due 7/01/2013                              1,916

                          Phoenix, Arizona, IDA, Hospital Revenue Bonds (John C. Lincoln Hospital and Health):
BBB+      NR       500      6% due 12/01/2010                                                                           475
BBB+      NR     1,000      6% due 12/01/2014                                                                           912

AA        NR     2,000    Phoenix, Arizona, Street and Highway User Revenue Bonds, Senior Lien, 6.25% due
                          7/01/2002 (e)                                                                               2,157

</TABLE>


                                       64
<PAGE>

SCHEDULE OF INVESTMENTS (concluded)

<TABLE>
<CAPTION>                                                                                                        (in Thousands)
S&P     Moody's  Face                                                                                                Value
Ratings Ratings Amount                                   Issue                                                     (Note 1a)

Arizona (concluded)
<C>       <C>   <C>       <S>                                                                                    <C>
Al+       Aa    $4,000    Pima and Maricopa Counties, Arizona, IDA, M/F Housing Revenue Bonds (Privado Park
                          Apartments), Series A, AMT, VRDN, 3.25% due 6/01/2034 (f)                                 $ 4,000

AAA       Aaa    1,750    Pima County, Arizona, Sewer Revenue Refunding Bonds, 6.75% due 7/01/2015 (b)                1,856

AAA       Aaa    1,065    Pima County, Arizona, Unified School District No. 1--Tucson School Improvement,
                          Series D, UT, 5.90% due 7/01/2005 (b)                                                       1,101

AA        P1     3,600    Pinal County, Arizona, IDA, PCR (Magma-Copper-Newmont Mining Corporation), VRDN,
                          2.80% due 12/01/2009 (f)                                                                    3,600

BBB-      NR       750    Prescott Valley, Arizona, Improvement District, Special Assessment Sewer
                          Collection System, Roadway Repair Revenue Bonds, 7.90% due 1/01/2012                          820

                          Salt River Project, Arizona, Agricultural Improvement and Power District, Electric
                          System Revenue Bonds:
AA        Aa     2,000      Series A, 6.50% due 1/01/2022                                                             2,038
AA        Aa     2,000      Series C, 6.20% due 1/01/2012                                                             2,030

AA        Aa     2,000    Salt River Project, Arizona, Agricultural Improvement and Power District, Electric
                          System Revenue Bonds, STRIPES, 6.777% due 1/01/2011 (g)                                     1,568

BBB       NR     1,600    Sedona, Arizona, Sewer Revenue Refunding Bonds, 7% due 7/01/2012                            1,651

AAA       Aaa      500    Tucson, Arizona, Airport Authority Revenue Bonds, AMT, Series B, 7.25% due 6/01/2020 (d)      532

A+        NR     2,650    Tucson, Arizona, Water Revenue Bonds, Series D, 6.75% due 7/01/2019 (e)                     2,943

                          Tucson, Arizona, Water Revenue Refunding Bonds:
A+        A1     1,250      6.50% due 7/01/2016                                                                       1,294
A+        A1     2,400      Series A, 5.75% due 7/01/2018                                                             2,301

                          University of Arizona, Medical Center Corporation, Hospital Revenue Bonds (d):
AAA       Aaa      750      7% due 7/01/2001 (e)                                                                        843
AAA       Aaa    1,000      Refunding, 6.25% due 7/01/2016                                                            1,009

AA        NR     1,920    University of Arizona Revenue Bonds, Series B, 6.90% due 6/01/2000 (e)                      2,131


Puerto Rico--8.7%


BB        Baa    3,000    Puerto Rico Commonwealth, Aqueduct and Sewer Authority Revenue Bonds, Series A,
                          7% due 7/01/2019                                                                            3,126

AAA       Aaa    2,000    Puerto Rico Commonwealth, YCN, 8.492% due 7/01/2020 (c)(g)                                  1,885

AAA       Aaa    1,900    Puerto Rico Electric Power Authority, Power Revenue Bonds, RIB, 8.778% due
                          7/01/2023 (c)(g)                                                                            1,836

                          Puerto Rico Electric Power Authority, Power Revenue Bonds:
A-        Baa1     265      Series N, 7.125% due 7/01/2014                                                              283
A-        Baa1   1,500      Series R, 6.25% due 7/01/2017                                                             1,508

Total Investments (Cost--$97,579)--99.6%                                                                             98,600

Other Assets Less Liabilities--0.4%                                                                                     379
                                                                                                                    -------
Net Assets--100.0%                                                                                                  $98,979
                                                                                                                    =======

<FN>
 (a)BIG Insured.
 (b)FGIC Insured.
 (c)FSA Insured.
 (d)MBIA Insured.
 (e)Prerefunded.
 (f)The interest rate is subject to change periodically based on
    prevailing market rates. The interest rates shown are those in
    effect at July 31, 1994.
 (g)The interest rate is subject to change periodically and inversely
    to the prevailing market rate. The interest rate shown is the rate
    in effect at July 31, 1994.
 (h)AMBAC Insured.
 NR--Not Rated.
    Ratings shown have not been audited by Deloitte & Touche LLP.
</TABLE>

See Notes to Financial Statements.


                                       65



<PAGE>

FINANCIAL INFORMATION


<TABLE>
<CAPTION>
Statement of Assets and Liabilities as of July 31, 1994
<C>            <S>                                                                           <C>            <C>
Assets:        Investments, at value (identified cost--$97,578,922) (Note 1a)                               $ 98,599,603
               Cash                                                                                               11,758
               Receivables:
                Interest                                                                     $    825,734
                Beneficial interest sold                                                          117,128        942,862
                                                                                             ------------
               Deferred organization expenses (Note 1e)                                                           34,775
               Prepaid expenses and other assets (Note 1e)                                                        13,116
                                                                                                            ------------
               Total assets                                                                                   99,602,114
                                                                                                            ============


Liabilities:   Payables:
                Capital shares redeemed                                                           403,687
                Dividends to shareholders (Note 1f)                                                80,917
                Distributor (Note 2)                                                               33,980
                Investment adviser (Note 2)                                                        33,367        551,951
                                                                                             ------------
               Accrued expenses and other liabilities                                                             71,387
                                                                                                            ------------
               Total liabilities                                                                                 623,338
                                                                                                            ------------

Net Assets:    Net assets                                                                                   $ 98,978,776
                                                                                                            ============

Net Assets     Class A Shares of beneficial interest, $.10 par value, unlimited number
Consist of:    of shares authorized                                                                         $    176,526
               Class B Shares of beneficial interest, $.10 par value, unlimited number
               of shares authorized                                                                              774,967
               Paid-in capital in excess of par                                                               96,878,830
               Undistributed realized capital gains--net                                                         127,772
               Unrealized appreciation on investments--net                                                     1,020,681
                                                                                                            ------------
               Net assets                                                                                   $ 98,978,776
                                                                                                            ============

Net Asset      Class A--Based on net assets of $18,363,001 and 1,765,263 shares of
Value:         beneficial interest outstanding                                                              $      10.40
                                                                                                            ============
               Class B--Based on net assets of $80,615,775 and 7,749,668 shares of
               beneficial interest outstanding                                                              $      10.40
                                                                                                            ============
</TABLE>

               See Notes to Financial Statements.


                                       66
<PAGE>

FINANCIAL INFORMATION (continued)


<TABLE>
<CAPTION>
Statement of Operations
                                                                                                          For the Year Ended
                                                                                                            July 31, 1994
<C>            <S>                                                                                        <C>
Investment     Interest and amortization of premium and discount earned                                     $  6,067,542
Income
(Note 1d):

Expenses:      Investment advisory fees (Note 2)                                                                 566,701
               Distribution fees--Class B (Note 2)                                                               418,781
               Printing and shareholder reports                                                                   59,423
               Professional fees                                                                                  52,827
               Accounting services (Note 2)                                                                       48,042
               Transfer agent fees--Class B (Note 2)                                                              34,318
               Custodian fees                                                                                     15,235
               Amortization of organization expenses (Note 1e)                                                    14,891
               Registration fees (Note 1e)                                                                        11,584
               Pricing fees                                                                                        8,399
               Transfer agent fees--Class A (Note 2)                                                               6,784
               Trustees' fees and expenses                                                                         4,715
               Other                                                                                               3,242
                                                                                                            ------------
               Total expenses before reimbursement                                                             1,244,942
               Reimbursement of expenses (Note 2)                                                               (239,468)
                                                                                                            ------------
               Total expenses                                                                                  1,005,474
                                                                                                            ------------
               Investment income--net                                                                          5,062,068
                                                                                                            ------------

Realized &     Realized gain on investments--net                                                               1,099,669
Unrealized     Change in unrealized depreciation on investments--net                                          (5,162,578)
Gain on                                                                                                     ------------
(Loss)         Net Increase in Net Assets Resulting from Operations                                         $    999,159
Investments                                                                                                 ============
- --Net
(Notes 1d
& 3):
</TABLE>

<TABLE>
<CAPTION>
Statements of Changes in Net Assets
                                                                                             For the Year Ended July 31,
Increase (Decrease) in Net Assets:                                                                1994           1993
<C>            <S>                                                                           <C>            <C>
Operations:    Investment income--net                                                        $  5,062,068   $  4,423,726
               Realized gain on investments--net                                                1,099,669      1,488,701
               Change in unrealized appreciation/depreciation on investments--net              (5,162,578)     2,011,436
                                                                                             ------------   ------------
               Net increase in net assets resulting from operations                               999,159      7,923,863
                                                                                             ------------   ------------

Dividends &    Investment income--net:
Distribu-       Class A                                                                        (1,026,371)      (901,362)
tions to        Class B                                                                        (4,035,697)    (3,522,364)
Shareholders   Realized gain on investments--net:
(Note 1f):      Class A                                                                          (387,548)      (182,088)
                Class B                                                                        (1,714,015)      (744,535)
                                                                                             ------------   ------------
               Net decrease in net assets resulting from dividends and distributions
               to shareholders                                                                 (7,163,631)    (5,350,349)
                                                                                             ------------   ------------

Beneficial     Net increase in net assets derived from beneficial interest
Interest       transactions                                                                     6,077,308     22,046,923
Transactions                                                                                 ------------   ------------
(Note 4):

Net Assets:    Total increase (decrease) in net assets                                           (87,164)     24,620,437
               Beginning of year                                                               99,065,940     74,445,503
                                                                                             ------------   ------------
               End of year                                                                   $ 98,978,776   $ 99,065,940
                                                                                             ============   ============
</TABLE>

               See Notes to Financial Statements.


                                       67
<PAGE>

FINANCIAL INFORMATION (continued)

<TABLE>
<CAPTION>
Financial Highlights
                                                                                                Class A
                                                                                                               For the
                                                                                                               Period
The following per share data and ratios have been derived                                                      Nov. 29,
from information provided in the financial statements.                                  For the Year          1991++  to
                                                                                        Ended July 31,         July 31,
Increase (Decrease) in Net Asset Value:                                              1994           1993         1992
<C>            <S>                                                             <C>            <C>            <C>
Per Share      Net asset value, beginning of period                            $     11.01    $     10.74    $     10.00
Operating                                                                      -----------    -----------    -----------
Performance:   Investment income--net                                                  .57            .60            .41
               Realized and unrealized gain (loss) on investments--net                (.39)           .39            .74
                                                                               -----------    -----------    -----------
               Total from investment operations                                        .18            .99           1.15
                                                                               -----------    -----------    -----------
               Less dividends:
                Investment income--net                                                (.57)          (.60)          (.41)
                Realized gain on investments--net                                     (.22)          (.12)            --
                                                                               -----------    -----------    -----------
               Total dividends                                                        (.79)          (.72)          (.41)
                                                                               -----------    -----------    -----------
               Net asset value, end of period                                  $     10.40    $     11.01    $     10.74
                                                                               ===========    ===========    ===========

Total          Based on net asset value per share                                     1.62%          9.63%         11.82%+++
Investment                                                                     ===========    ===========    ===========
Return:**

Ratios to      Expenses, net of reimbursement                                         .56%           .41%           .22%*
Average                                                                        ===========    ===========    ===========
Net Assets:    Expenses                                                               .80%           .81%           .98%*
                                                                               ===========    ===========    ===========
               Investment income--net                                                5.32%          5.57%          5.99%*
                                                                               ===========    ===========    ===========

Supplemental   Net assets, end of period (in thousands)                        $    18,363    $    17,988    $    14,564
Data:                                                                          ===========    ===========    ===========
               Portfolio turnover                                                   53.35%         73.48%         66.50%
                                                                               ===========    ===========    ===========

            <FN>
             ++Commencement of Operations.
            +++Aggregate total investment return.
              *Annualized.
             **Total investment returns exclude the effects of sales loads.

</TABLE>

               See Notes to Financial Statements.


                                       68
<PAGE>

FINANCIAL INFORMATION (concluded)

<TABLE>
<CAPTION>
Financial Highlights (concluded)
                                                                                                Class B
                                                                                                               For the
                                                                                                               Period
The following per share data and ratios have been derived                                                      Nov. 29,
from information provided in the financial statements.                                  For the Year          1991++ to
                                                                                        Ended July 31,         July 31,
Increase (Decrease) in Net Asset Value:                                              1994           1993         1992
<C>            <S>                                                             <C>            <C>            <C>

Per Share      Net asset value, beginning of period                            $     11.01    $     10.74    $     10.00
Operating                                                                      -----------    -----------    -----------
Performance:   Investment income--net                                                  .52            .54            .38
               Realized and unrealized gain (loss) on investments--net                (.39)           .39            .74
                                                                               -----------    -----------    -----------
               Total from investment operations                                        .13            .93           1.12
                                                                               -----------    -----------    -----------
               Less dividends and distributions:
                Investment income--net                                                (.52)          (.54)          (.38)
                Realized gain on investments--net                                     (.22)          (.12)            --
                                                                               -----------    -----------    -----------
               Total dividends and distributions                                     (.74)          (.66)          (.38)
                                                                               -----------    -----------    -----------
               Net asset value, end of period                                  $     10.40    $     11.01    $     10.74
                                                                               ===========    ===========    ===========

Total          Based on net asset value per share                                    1.11%          9.08%         11.45%+++
Investment                                                                     ===========    ===========    ===========
Return:**

Ratios to      Expenses, excluding distribution fees and net of reimbursement         .57%           .42%           .24%*
Average                                                                        ===========    ===========    ===========
Net Assets:    Expenses, net of reimbursement                                        1.07%           .92%           .74%*
                                                                               ===========    ===========    ===========
               Expenses                                                              1.30%          1.32%          1.47%*
                                                                               ===========    ===========    ===========
               Investment income--net                                                4.82%          5.06%          5.48%*
                                                                               ===========    ===========    ===========

Supplemental   Net assets, end of period (in thousands)                        $    80,616    $    81,078    $    59,881
Data:                                                                          ===========    ===========    ===========
               Portfolio turnover                                                   53.35%         73.48%         66.50%
                                                                               ===========    ===========    ===========

            <FN>
             ++Commencement of Operations.
            +++Aggregate total investment return.
              *Annualized.
             **Total investment returns exclude the effects of sales loads.
</TABLE>

               See Notes to Financial Statements.


                                       69


<PAGE>

NOTES TO FINANCIAL STATEMENTS

1. Significant Accounting Policies:
Merrill Lynch Arizona Municipal Bond Fund (the "Fund") is part of Merrill Lynch
Multi-State Municipal Series Trust (the "Trust"). The Fund is registered under
the Investment Company Act of 1940 as a non-diversified, open-end management
investment company. The Fund offers both Class A and Class B Shares. Class A
Shares are sold with a front-end sales charge. Class B Shares may be subject to
a contingent deferred sales charge. Both classes of shares have identical
voting, dividend, liquidation and other rights and the same terms and
conditions, except that Class B Shares bear certain expenses related to the
distribution of such shares and have exclusive voting rights with respect to
matters relating to such distribution expenditures. The following is a summary
of significant accounting policies followed by the Fund.

(a)Valuation of investments--Municipal bonds and other portfolio securities in
which the Fund invests are traded primarily in the over-the-counter municipal
bond and money markets and are valued at the last available bid price in the
over-the-counter market or on the basis of yield equivalents as obtained from
one or more dealers that make markets in the securities. Financial futures
contracts and options thereon, which are traded on exchanges, are valued at
their settlement prices as of the close of such exchanges. Short-term
investments with remaining maturities of sixty days or less are valued at
amortized cost, which approximates market value. Options, which are traded on
exchanges, are valued at their last sale price as of the close of such exchanges
or, lacking any sales, at the last available bid price. Securities and assets
for which market quotations are not readily available are valued at fair value
as determined in good faith by or under the direction of the Board of Trustees
of the Trust, including valuations furnished by a pricing service retained by
the Trust, which may utilize a matrix system for valuations. The procedures of
the pricing service and its valuations are reviewed by the officers of the Trust
under the general supervision of the Trustees.

(b)Financial futures contracts--The Fund may purchase or sell interest rate
futures contracts and options on such futures contracts for the purpose of
hedging the market risk on existing or the intended purchase of securities.
Futures contracts are contracts for delayed delivery of securities at a specific
future date and at a specific price or yield. Upon entering into a contract, the
Fund agrees to receive from or pay to the broker an amount of cash equal to the
daily fluctuation in value of the contract. Such receipts or payments are known
as variation margin and are recorded by the Fund as unrealized gains or losses.
When the contract is closed, the Fund records a realized gain or loss equal to
the difference between the value of the contract at the time it was opened and
the value at the time it was closed.

(c)Income taxes--It is the Fund's policy to comply with the requirements of the
Internal Revenue Code applicable to regulated investment companies and to
distribute substantially all of its taxable income to its shareholders.
Therefore, no Federal income tax provision is required.

(d)Security transactions and investment income--Security transactions are
recorded on the dates the transactions are entered into (the trade dates).
Interest income is recognized on the accrual basis. Discounts and market
premiums are amortized into interest income. Realized gains and losses on
security transactions are determined on the identified cost basis.

(e)Deferred organization expenses and prepaid registration fees--Deferred
organization expenses are charged to expense on a straight-line basis over a
five-year period. Prepaid registration fees are charged to expense as the
related shares are issued.

(f)Dividends and distributions--Dividends from net investment income are
declared daily and paid monthly. Distributions of capital gains are recorded on
the ex-dividend dates.


                                       70
<PAGE>

2. Investment Advisory Agreement and Transactions with Affiliates:
The Fund has entered into an Investment Advisory Agreement with Fund Asset
Management, L.P. ("FAM"). Effective January 1, 1994, the investment advisory
business of FAM was reorganized from a corporation to a limited partnership.
Both prior to and after the reorganization, ultimate control of FAM was vested
with Merrill Lynch & Co., Inc. ("ML & Co."). The general partner of FAM is
Princeton Services, Inc. ("PSI"), an indirect wholly-owned subsidiary of ML &
Co. The limited partners are ML & Co. and Fund Asset Management, Inc. ("FAMI"),
which is also an indirect wholly-owned subsidiary of ML & Co. The Fund has also
entered into Distribution Agreements and a Distribution Plan with Merrill Lynch
Funds Distributor, Inc. ("MLFD" or "Distributor"), a wholly-owned subsidiary of
Merrill Lynch Investment Management, Inc. ("MLIM"), which is also an indirect
wholly-owned subsidiary of ML & Co.

FAM is responsible for the management of the Fund's portfolio and provides the
necessary personnel, facilities, equipment and certain other services necessary
to the operations of the Fund. For such services, the Fund pays a monthly fee
based upon the average daily value of the Fund's net assets at the following
annual rates: 0.55% of the Fund's average daily net assets not exceeding $500
million; 0.525% of average daily net assets in excess of $500 million but not
exceeding $1 billion; and 0.50% of average daily net assets in excess of $1
billion. The Investment Advisory Agreement obligates FAM to reimburse the Fund
to the extent the Fund's expenses (excluding interest, taxes, distribution fees,
brokerage fees and commissions, and extraordinary items) exceed 2.5% of the
Fund's first $30 million of average daily net assets, 2.0% of the next $70
million of average daily net assets and 1.5% of the average daily net assets in
excess thereof. FAM's obligation to reimburse the Fund is limited to the amount
of the management fee. No fee payment will be made during any fiscal year which
will cause such expenses to exceed expense limitation at the time of such
payment. For the year ended July 31, 1994, FAM had management fees of $566,701,
of which $239,468 was voluntarily waived.

The Fund has adopted a Plan of Distribution (the "Plan") in accordance with
Rule 12b-1 under the Investment Company Act of 1940 pursuant to which the Fund
pays the Distributor ongoing account maintenance and distribution fees relating
to Class B Shares which are accrued daily and paid monthly at the annual rate of
0.25% and 0.25%, respectively, of the average daily net assets of the Class B
Shares of the Fund. Pursuant to a sub-agreement with the Distributor, Merrill
Lynch also provides account maintenance and distribution services to the Fund.
The ongoing account maintenance fee compensates the Distributor and Merrill
Lynch for providing account maintenance services to Class B shareholders. As
authorized by the plan, the Distributor has entered into an agreement with
Merrill Lynch, Pierce, Fenner & Smith Inc. ("MLPF&S"), an affiliate of ML & Co.,
which provides for the compensation of MLPF&S for providing distribution-related
services to the Fund.

For the year ended July 31, 1994, MLFD earned underwriting discounts of $6,133,
and MLPF&S earned dealer concessions of $76,301 on sales of the Fund's Class A
Shares.

MLPF&S also received contingent deferred sales charges of $217,476 relating to
Class B Share transactions during the period.

Financial Data Services, Inc. ("FDS"), a wholly-owned subsidiary of ML & Co., is
the Fund's transfer agent.

Accounting services are provided to the Fund by FAM at cost.

Certain officers and/or trustees of the Fund are officers and/or directors of
FAM, FAMI, PSI, MLFD, MLIM, FDS, MLPF&S, and/or ML & Co.

3. Investments:
Purchases and sales of investments, excluding short-term securities, for the
period ended July 31, 1994 were $58,315,671 and $51,271,681, respectively.


                                       71
<PAGE>

NOTES TO FINANCIAL STATEMENTS (concluded)


Net realized and unrealized gains as of July 31, 1994 were as follows:

<TABLE>
<CAPTION>
                                    Realized      Unrealized
                                      Gains         Gains
<S>                                <C>            <C>
Long-term investments              $  495,325     $1,020,681
Financial futures contracts           604,344             --
                                   ----------     ----------
Total                              $1,099,669     $1,020,681
                                   ==========     ==========
</TABLE>

As of July 31, 1994, net unrealized appreciation for Federal income tax purposes
aggregated $1,020,681, of which $2,990,675 related to appreciated securities and
$1,969,994 related to depreciated securities. The aggregate cost of investments
at July 31, 1994 for Federal income tax purposes was $97,578,922.

4. Beneficial Interest Transactions:
Net increase in net assets derived from beneficial interest transactions was
$6,077,308 and $22,046,923 for the year ended July 31, 1994 and July 31, 1993,
respectively.

Transactions in shares of beneficial interest for Class A and Class B Shares
were as follows:

<TABLE>
<CAPTION>
Class A Shares for the Year                         Dollar
Ended July 31, 1994                   Shares        Amount
<S>                               <C>           <C>
Shares sold                           627,096   $  6,804,755
Shares issued to shareholders
in reinvestment of dividends
and distributions                      67,361        730,862
                                  -----------   ------------
Total issued                          694,457      7,535,617
Shares redeemed                      (562,798)    (5,985,598)
                                  -----------   ------------
Net increase                          131,659   $  1,550,019
                                  ===========   ============
</TABLE>


<TABLE>
<CAPTION>
Class A Shares for the Year                         Dollar
Ended July 31, 1993                   Shares        Amount
<S>                               <C>           <C>
Shares sold                           584,723   $  6,243,131
Shares issued to shareholders
in reinvestment of dividends
and distributions                      48,118        511,965
                                  -----------   ------------
Total issued                          632,841      6,755,096
Shares redeemed                      (354,895)    (3,778,384)
                                  -----------   ------------
Net increase                          277,946   $  2,976,712
                                  ===========   ============
</TABLE>


<TABLE>
<CAPTION>
Class B Shares for the                              Dollar
Year Ended July 31, 1994              Shares        Amount
<S>                               <C>           <C>
Shares sold                         1,806,398   $ 19,567,507
Shares issued to shareholders
in reinvestment of dividends
and distributions                     224,144      2,439,428
                                  -----------   ------------
Total issued                        2,030,542     22,006,935
Shares redeemed                    (1,643,963)   (17,479,646)
                                  -----------   ------------
Net increase                          386,579   $  4,527,289
                                  ===========   ============
</TABLE>


<TABLE>
<CAPTION>
Class B Shares for the                              Dollar
Year Ended July 31, 1993              Shares        Amount
<S>                               <C>           <C>
Shares sold                         2,432,048    $25,974,673
Shares issued to shareholders
in reinvestment of dividends
and distributions                     163,371      1,737,881
                                  -----------   ------------
Total issued                        2,595,419     27,712,554
Shares redeemed                      (806,190)    (8,642,343)
                                  -----------   ------------
Net increase                        1,789,229   $ 19,070,211
                                  ===========   ============
</TABLE>


                                       72


<PAGE>
   
                               TABLE OF CONTENTS
    

   
<TABLE>
<CAPTION>
                                                      PAGE
                                                      -----
<S>                                                <C>
Investment Objective and Policies................           2
Description of Municipal Bonds and Temporary
Investments......................................           5
  Description of Municipal Bonds.................           5
  Description of Temporary Investments...........           6
  Repurchase Agreements..........................           8
  Financial Futures Transactions and Options.....           8
Investment Restrictions..........................          13
Management of the Trust..........................          16
  Trustees and Officers..........................          16
  Management and Advisory Arrangements...........          18
Purchase of Shares...............................          20
  Initial Sales Charge Alternatives -- Class A
   and Class D Shares............................          20
  Reduced Initial Sales Charges..................          21
  Distribution Plans.............................          24
  Limitations on the Payment of Deferred Sales
   Charges.......................................          24
Redemption of Shares.............................          25
  Deferred Sales Charge -- Class B Shares........          25
Portfolio Transactions...........................          26
Determination of Net Asset Value.................          27
Shareholder Services.............................          28
  Investment Account.............................          28
  Automatic Investment Plans.....................          29
  Automatic Reinvestment of Dividends and Capital
   Gains Distributions...........................          29
  Systematic Withdrawal Plans -- Class A and
   Class D Shares................................          29
  Exchange Privilege.............................          30
Distributions and Taxes..........................          43
  Environmental Tax..............................          46
  Tax Treatment of Option and Futures
   Transactions..................................          46
  Arizona Income Tax.............................          47
Performance Data.................................          47
General Information..............................          49
  Description of Shares..........................          49
  Computation of Offering Price Per Share........          50
  Independent Auditors...........................          51
  Custodian......................................          51
  Transfer Agent.................................          51
  Legal Counsel..................................          51
  Report to Shareholders.........................          51
  Additional Information.........................          51
Appendix I -- Economic and Financial Conditions
  in Arizona.....................................          52
Appendix II -- Ratings of Municipal Bonds........          54
Independent Auditors' Report.....................          62
Financial Statements.............................          63
</TABLE>
    

   
                                                             Code # 13975 - 1094
    
   
         [LOGO]

  Merrill Lynch
  Arizona Municipal
  Bond Fund
    Merrill Lynch Multi-State
    Municipal Series Trust
    
   
   STATEMENT OF
   ADDITIONAL
   INFORMATION
    October 21, 1994
    Distributor:
    Merrill Lynch
    Funds Distributor, Inc.
    
<PAGE>
                           PART C. OTHER INFORMATION

ITEM 24. FINANCIAL STATEMENTS AND EXHIBITS.

    (A)  FINANCIAL STATEMENTS

            Contained in Part A:

   
                Financial  Highlights for the years ended July 31, 1994 and 1993
                and  for  the   period  November  29,   1991  (commencement   of
                operations) to July 31, 1992.
    

            Contained in Part B:

   
                Schedule of Investments as of July 31, 1994.
    

   
                Statement of Assets and Liabilities as of July 31, 1994.
    

   
                Statement of Operations for the year ended July 31, 1994.
    

   
                Statements of Changes in Net Assets for the years ended July 31,
                1994 and 1993.
    

   
                Financial Highlights for the years ended July 31, 1994 and 1993
                and for the period November 29, 1991 (commencement of
                operations) to July 31, 1992.
    

    (B)  EXHIBITS:

   
<TABLE>
<CAPTION>
EXHIBIT
NUMBER
- ------
<C>    <S>
 1(a)  -- Declaration of Trust of the Registrant, dated August 2, 1985.(a)
  (b)  -- Amendment to Declaration of Trust, dated October 3, 1988.(b)
  (c)  -- Instrument establishing Merrill Lynch Arizona Municipal Bond Fund (the
       "Fund") as a series of Registrant.(d)
  (d)  -- Instrument establishing Class A and Class B shares of beneficial
       interest of the Fund.(d)
 2     -- By-Laws of Registrant.(a)
 3     -- None.
 4     -- Portions of the Declaration of Trust, Establishment and Designation
       and By-Laws of the Registrant defining the rights of holders of the Fund
          as a series of the Registrant.(c)
 5(a)  -- Form of Management Agreement between Registrant and Fund Asset
          Management, L.P.(d)
  (b)  -- Supplement to Management Agreement between Registrant and Fund Asset
          Management, L.P.
 6(a)(1) -- Class A Shares Distribution Agreement between Registrant and Merrill
       Lynch Funds Distributor, Inc.(d)
  (a)(2) -- Form of Revised Class A Shares Distribution Agreement between
       Registrant and Merrill Lynch Funds Distributor, Inc.
  (b)  -- Form of Class B Shares Distribution Agreement between Registrant and
       Merrill Lynch Funds Distributor, Inc.(d)
  (c)  -- Form of Class C Shares Distribution Agreement between Registrant and
       Merrill Lynch Funds Distributor, Inc.
  (d)  -- Form of Class D Shares Distribution Agreement between Registrant and
       Merrill Lynch Funds Distribution, Inc.
  (e)  -- Letter Agreement between the Fund and Merrill Lynch Funds Distributor,
       Inc., dated September 15, 1993, in connection with the Merrill Lynch
          Mutual Fund Adviser program.(f)
</TABLE>
    

                                      C-1
<PAGE>
   
<TABLE>
<CAPTION>
EXHIBIT
NUMBER
- ------
<C>    <S>
 7     -- None.
 8     -- Form of Custody Agreement between Registrant and State Street Bank and
       Trust Company.(g)
 9     -- Form of Transfer Agency, Dividend Disbursing Agency and Shareholder
       Servicing Agency Agreement between Registrant and Financial Data
          Services, Inc.(d)
10     -- None.
11     -- Consent of Deloitte & Touche LLP, independent auditors for the
          Registrant.
12     -- None.
13     -- Certificate of Fund Asset Management, Inc.(d)
14     -- None.
15(a)  -- Class B Shares Distribution Plan of the Registrant and Class B Shares
       Distribution Plan Sub-Agreement.(d)
  (b)  -- Amended and Restated Class B Shares Distribution Plan of the
       Registrant and Amended and Restated Class B Shares Distribution Plan
          Sub-Agreement.(f)
  (c)  -- Form of Class C Shares Distribution Plan and Class C Shares
       Distribution Plan Sub-Agreement of the Registrant.
  (d)  -- Form of Class D Shares Distribution Plan and Class D Shares
       Distribution Plan Sub-Agreement of the Registrant.
16(a)  -- Schedule for computation of each performance quotation provided in the
       Registration Statement in response to Item 22 relating to Class A
          shares.(e)
  (b)  -- Schedule for computation of each performance quotation provided in the
       Registration Statement in response to Item 22 relating to Class B
          shares.(e)
17(a)  -- Financial Data Schedule for Class A Shares.
  (b)  -- Financial Data Schedule for Class B Shares.
<FN>
- ---------
(a)  Filed on August 6, 1985 as an Exhibit to the Registration Statement on Form
     N-1A  (File No. 2-99473) under the Securities  Act of 1933 of Merrill Lynch
     New York Municipal Bond Fund, a series of the Registrant.

(b)  Filed on October 11, 1988 as  an Exhibit to Post-Effective Amendment No.  4
     to  the Registration  Statement on Form  N-1A (File No.  2-99473) under the
     Securities Act of  1933 of Merrill  Lynch New York  Municipal Bond Fund,  a
     series of the Registrant.

(c)  Reference  is made to Article II, Section 2.3 and Articles V, VI, VIII, IX,
     X and XI  of the  Registrant's Declaration  of Trust,  previously filed  as
     Exhibit  1(a) to  the Registration Statement  referred to  in paragraph (a)
     above; to the  Certificates of Establishment  and Designation  establishing
     the Fund as a series of the Registrant and establishing Class A and Class B
     shares  of beneficial interest of the Fund, which will be filed as Exhibits
     1(c) and 1(d), respectively, to the Registration Statement; and to Articles
     I, V and VI of the Registrant's  By-Laws, previously filed as Exhibit 2  to
     the Registration Statement referred to in paragraph (a) above.

(d)  Filed  on October 17, 1991  as an Exhibit to  Pre-Effective Amendment No. 1
     the Registration  Statement under  the Securities  Act of  1933 of  Merrill
     Lynch Arizona Municipal Bond Fund.

(e)  Filed  on April 17, 1992 as an Exhibit to Post-Effective Amendment No. 1 to
     Registrant's Registration Statement on Form  N-1A under the Securities  Act
     of 1933.

(f)  Filed  on November 24, 1993 as an Exhibit to Post-Effective Amendment No. 3
     to Registrant's Registration  Statement on Form  N-1A under the  Securities
     Act of 1933.
</TABLE>
    

                                      C-2
<PAGE>
   
<TABLE>
<S>  <C>
(g)  Incorporated by reference to Exhibit 8 to Post-Effective Amendment No. 3 to
     Registrant's  Registration Statement on Form  N-1A under the Securities Act
     of 1933 relating to  shares of the Merrill  Lynch Minnesota Municipal  Bond
     Fund series of the Registrant (File No. 33-44734).
</TABLE>
    

ITEM 25.  PERSONS CONTROLLED BY OR UNDER COMMON CONTROL WITH REGISTRANT.

    Registrant is not controlled by or under common control with any person.

ITEM 26.  NUMBER OF HOLDERS OF SECURITIES.

   
<TABLE>
<CAPTION>
                                                                                        NUMBER OF RECORD
                                                                                           HOLDERS AT
TITLE OF CLASS                                                                         SEPTEMBER 30, 1994
- ------------------------------------------------------------------------------------  ---------------------
<S>                                                                                   <C>
Class A shares of beneficial interest, par value $0.10 per share....................               17
Class B shares of beneficial interest, par value $0.10 per share....................              100
Class C shares of beneficial interest, par value $0.10 per share....................                0
Class D shares of beneficial interest, par value $0.10 per share....................                0
</TABLE>
    

ITEM 27.  INDEMNIFICATION.

    Section 5.3 of the Registrant's Declaration of Trust provides as follows:

    "The  Trust shall  indemnify each of  its Trustees,  officers, employees and
agents (including persons  who serve at  its request as  directors, officers  or
trustees  of another organization in which it has any interest as a shareholder,
creditor or otherwise) against all  liabilities and expenses (including  amounts
paid  in satisfaction of judgments, in compromise, as fines and penalties and as
counsel fees)  reasonably incurred  by him  in connection  with the  defense  or
disposition  of any action, suit or other proceeding, whether civil or criminal,
in which he may be involved or with which he may be threatened, while in  office
or  thereafter, by reason of  his being or having  been such a trustee, officer,
employee or agent, except with respect to  any matter as to which he shall  have
been  adjudicated  to  have  acted  in  bad  faith,  willful  misfeasance, gross
negligence or reckless disregard  of his duties; provided,  however, that as  to
any  matter disposed of  by a compromise  payment by such  person, pursuant to a
consent decree or otherwise, no indemnification  either for said payment or  for
any  other expenses  shall be  provided unless the  Trust shall  have received a
written opinion from independent legal counsel  approved by the Trustees to  the
effect  that if  either the matter  of willful misfeasance,  gross negligence or
reckless disregard of duty, or the matter of good faith and reasonable belief as
to the best interests  of the Trust,  had been adjudicated,  it would have  been
adjudicated  in favor of  such person. The  rights accruing to  any Person under
these provisions shall not exclude any other  right to which he may be  lawfully
entitled;  provided  that  no  person  may satisfy  any  right  in  indemnity or
reimbursement granted herein or in Section 5.1  or to which he may be  otherwise
entitled  except out of the  property of the Trust,  and no Shareholder shall be
personally liable  to any  Person with  respect to  any claim  for indemnity  or
reimbursement or otherwise. The Trustees may make advance payments in connection
with  indemnification  under this  Section  5.3, provided  that  the indemnified
person shall have  given a  written undertaking to  reimburse the  Trust in  the
event   it  is  subsequently  determined  that   he  is  not  entitled  to  such
indemnification."

    Insofar as the conditional advancing  of indemnification monies for  actions
based  upon the Investment  Company Act of  1940, as amended,  may be concerned,
such payments will be  made only on the  following conditions: (i) the  advances
must  be  limited  to  amounts used,  or  to  be used,  for  the  preparation or
presentation of a  defense to  the action,  including costs  connected with  the
preparation  of a settlement; (ii)  advances may be made  only upon receipt of a
written promise by, or on behalf of,  the recipient to repay that amount of  the
advance which exceeds the amount to which it is ultimately determined that he is
entitled  to receive from the Registrant by reason of indemnification; and (iii)
(a) such promise must be secured by  a surety bond, other suitable insurance  or
an equivalent form of security which assures that any repayments may be obtained
by  the Registrant without  delay or litigation, which  bond, insurance or other
form of security  must be provided  by the recipient  of the advance,  or (b)  a
majority  of a quorum of the  Registrant's disinterested, non-party Trustees, or
an independent legal counsel in a written opinion, shall determine, based upon a
review of readily available facts that  the recipient of the advance  ultimately
will be found entitled to indemnification.

                                      C-3
<PAGE>
    In Section 9 of the Distribution Agreements relating to the securities being
offered  hereby, the  Registrant agrees  to indemnify  the Distributor  and each
person, if  any,  who  controls  the  Distributor  within  the  meaning  of  the
Securities  Act of 1933, as  amended (the "1933 Act"),  against certain types of
civil liabilities  arising  in connection  with  the Registration  Statement  or
Prospectus and Statement of Additional Information.

    Insofar as indemnification for liabilities arising under the 1933 Act may be
permitted  to Trustees, officers  and controlling persons  of the Registrant and
the principal underwriter pursuant to the foregoing provisions or otherwise, the
Registrant has been advised that in  the opinion of the Securities and  Exchange
Commission  such indemnification  is against public  policy as  expressed in the
1933 Act  and  is, therefore,  unenforceable.  In the  event  that a  claim  for
indemnification  against  such  liabilities  (other  than  the  payment  by  the
Registrant of expenses incurred  or paid by a  Trustee, officer, or  controlling
person  of the Registrant  and the principal underwriter  in connection with the
successful defense  of any  action,  suit or  proceeding)  is asserted  by  such
Director,  officer  or  controlling  person  or  the  principal  underwriter  in
connection with the shares being registered, the 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 1933 Act and
will be governed by the final adjudication of such issue.

ITEM 28.  BUSINESS AND OTHER CONNECTIONS OF INVESTMENT ADVISER.

   
    Fund Asset Management, Inc. (the  "Manager") acts as the investment  adviser
for  the following registered  investment companies: Apex  Municipal Fund, Inc.,
CBA Money Fund, CMA Government Securities Fund, CMA Money Fund, CMA  Multi-State
Municipal  Series Trust, CMA  Tax-Exempt Fund, CMA  Treasury Fund, The Corporate
Fund Accumulation Program, Inc., Corporate High Yield Fund, Inc., Corporate High
Yield Fund II, Inc., Emerging  Tigers Fund, Inc., Financial Institutions  Series
Trust,  Income Opportunities  Fund 1999,  Inc., Income  Opportunities Fund 2000,
Inc., Merrill Lynch Basic Value  Fund, Inc., Merrill Lynch California  Municipal
Series  Trust, Merrill  Lynch Corporate Bond  Fund, Inc.,  Merrill Lynch Federal
Securities Trust, Merrill  Lynch Funds  for Institutions  Series, Merrill  Lynch
Multi-State  Limited Maturity Municipal Series  Trust, Merrill Lynch Multi-State
Municipal Series Trust, Merrill Lynch  Municipal Bond Fund, Inc., Merrill  Lynch
Phoenix  Fund, Inc.,  Merrill Lynch Arizona  Municipal Bond  Fund, Inc., Merrill
Lynch World  Income Fund,  Inc., MuniAssets  Fund, Inc.,  MuniBond Income  Fund,
Inc.,  The Municipal Fund  Accumulation Program, Inc.,  MuniEnhanced Fund, Inc.,
MuniInsured Fund, Inc., MuniVest  Fund, Inc., MuniVest  Fund II, Inc.,  MuniVest
California  Insured Fund, Inc., MuniVest Florida Fund, MuniVest Michigan Insured
Fund, Inc., MuniVest  New Jersey  Fund, Inc.,  MuniVest New  York Insured  Fund,
Inc.,   MuniVest  Pennsylvania  Insured  Fund,  MuniYield  Arizona  Fund,  Inc.,
MuniYield Arizona  Fund II,  Inc., MuniYield  California Fund,  Inc.,  MuniYield
California  Insured  Fund, Inc.,  MuniYield  California Insured  Fund  II, Inc.,
MuniYield Florida Fund,  MuniYield Florida Insured  Fund, MuniYield Fund,  Inc.,
MuniYield  Insured  Fund,  Inc.,  MuniYield  Insured  Fund  II,  Inc., MuniYield
Michigan Fund, Inc., MuniYield Michigan Insured Fund, Inc., MuniYield New Jersey
Fund, Inc., MuniYield New Jersey Insured Fund, Inc., MuniYield New York  Insured
Fund, Inc., MuniYield New York Insured Fund II, Inc., MuniYield New York Insured
Fund  III,  Inc., MuniYield  Pennsylvania  Fund, MuniYield  Quality  Fund, Inc.,
MuniYield Quality Fund II, Inc., Senior High Income Portfolio, Inc., Senior High
Income  Portfolio  II,  Inc.,  Senior   Strategic  Income  Fund,  Inc.,   Taurus
MuniCalifornia  Holdings, Inc., Taurus MuniNew York Holdings, Inc. and Worldwide
DollarVest  Fund,  Inc.  Merrill  Lynch  Asset  Management,  L.P.  ("MLAM"),  an
affiliate  of  the Manager,  acts as  the investment  adviser for  the following
companies: Convertible Holdings, Inc., Merrill Lynch Adjustable Rate  Securities
Fund, Inc., Merrill Lynch Americas Income Fund, Inc., Merrill Lynch Asset Growth
Fund,  Inc., Merrill Lynch Asset Income  Fund, Inc., Merrill Lynch Balanced Fund
for Investment and Retirement, Inc.,  Merrill Lynch Capital Fund, Inc.,  Merrill
Lynch  Developing Capital Markets  Fund, Inc., Merrill  Lynch Dragon Fund, Inc.,
Merrill Lynch EuroFund,  Merrill Lynch  Fundamental Growth  Fund, Inc.,  Merrill
Lynch Fund For Tomorrow, Inc., Merrill Lynch Global Bond Fund for Investment and
Retirement,  Merrill Lynch  Global Allocation  Fund, Inc.,  Merrill Lynch Global
Convertible Fund,  Inc., Merrill  Lynch Global  Resources Trust,  Merrill  Lynch
Global  SmallCap Fund,  Inc., Merrill Lynch  Global Utility  Fund, Inc., Merrill
Lynch Growth Fund for Investment and Retirement, Merrill
    

                                      C-4
<PAGE>
   
Lynch Healthcare  Fund, Inc.,  Merrill Lynch  High Income  Municipal Bond  Fund,
Inc., Merrill Lynch Institutional Intermediate Fund, Merrill Lynch International
Equity  Fund, Merrill  Lynch Latin America  Fund, Inc.,  Merrill Lynch Municipal
Intermediate Term  Fund, Merrill  Lynch Municipal  Series Trust,  Merrill  Lynch
Natural  Resources Trust, Merrill Lynch Pacific  Fund, Inc., Merrill Lynch Ready
Assets Trust,  Merrill  Lynch  Retirement Series  Trust,  Merrill  Lynch  Senior
Floating  Rate  Fund,  Inc.,  Merrill Lynch  Series  Fund,  Inc.,  Merrill Lynch
Short-Term Global  Income Fund,  Inc., Merrill  Lynch Strategic  Dividend  Fund,
Merrill  Lynch Technology  Fund, Inc., Merrill  Lynch U.S.  Treasury Money Fund,
Merrill Lynch U.S.A.  Government Reserves,  Merrill Lynch  Utility Income  Fund,
Inc.,  Merrill Lynch Variable  Series Funds, Inc.  The address of  each of these
investment companies is P.O. Box 9011, Princeton, New Jersey 08543-9011,  except
that  the address  of Merrill  Lynch Funds  for Institutions  Series and Merrill
Lynch Institutional  Intermediate  Fund is  One  Financial Center,  15th  Floor,
Boston,  Massachusetts  02111-2646. The  address of  the Manager,  MLAM, Merrill
Lynch Funds  Distributor, Inc.  ("MLFD"), Princeton  Services, Inc.  ("Princeton
Services")  and Princeton Administrators, L.P. is also P.O. Box 9011, Princeton,
New Jersey 08543-9011.  The address  of Merrill  Lynch, Pierce,  Fenner &  Smith
Incorporated  ("Merrill Lynch") and  Merrill Lynch &  Co., Inc. ("ML  & Co.") is
World Financial Center, North Tower, 250 Vesey Street, New York, New York 10281.
The address  of  Financial Data  Services  Inc.  is 4800  Deerlake  Drive  East,
Jacksonville, Florida 32246-6484.
    

   
    Set  forth below  is a  list of  each executive  officer and  partner of the
Manager indicating  each  business,  profession, vocation  or  employment  of  a
substantial  nature in which each such person  has been engaged since January 1,
1992 for his or its own account or in the capacity of director, officer, partner
or trustee. In addition, Mr. Zeikel  is President, Mr. Richard is Treasurer  and
Mr.  Glenn is  Executive Vice President  of substantially all  of the investment
companies described in  the preceding  paragraph and  Messrs. Durnin,  Giordano,
Harvey, Hewitt, Kirstein and Monagle are directors or officers of one or more of
such companies.
    

   
<TABLE>
<CAPTION>
                                  POSITIONS WITH                          OTHER SUBSTANTIAL BUSINESS,
           NAME                      MANAGER                           PROFESSION, VOCATION OR EMPLOYMENT
- ---------------------------  ----------------------------------------------------------------------------------------------
<S>                          <C>                     <C>
ML & Co.                     Limited Partner         Financial Services Holding Company
Fund Asset Management, L.P.  Limited Partner         Investment Advisory Services
Princeton Services, Inc.     General Partner         General Partner of MLAM
Arthur Zeikel                President               President and Director of MLAM; President and Director of Princeton
                                                       Services; Director of MLFD; Executive Vice President of ML & Co.;
                                                       Executive Vice President of Merrill Lynch
Terry K. Glenn               Executive Vice President Executive Vice President of MLAM; Executive Vice President and
                                                       Director of Princeton Services; President and Director of MLFD;
                                                       President of Princeton Administrators, L.P.
Bernard J. Durnin            Senior Vice President   Senior Vice President of MLAM; Senior Vice President of Princeton
                                                       Services
Vincent R. Giordano          Senior Vice President   Senior Vice President of MLAM; Senior Vice President of Princeton
                                                       Services
Elizabeth Griffin            Senior Vice President   Senior Vice President of the Fund
Norman R. Harvey             Senior Vice President   Senior Vice President of MLAM; Senior Vice President of Princeton
                                                       Services
N. John Hewitt               Senior Vice President   Senior Vice President of MLAM; Senior Vice President of Princeton
                                                       Services
</TABLE>
    

                                      C-5
<PAGE>
   
<TABLE>
<CAPTION>
                                  POSITIONS WITH                          OTHER SUBSTANTIAL BUSINESS,
           NAME                      MANAGER                           PROFESSION, VOCATION OR EMPLOYMENT
- ---------------------------  ----------------------------------------------------------------------------------------------
<S>                          <C>                     <C>
Philip L. Kirstein           Senior Vice President,  Senior Vice President, General Counsel, Secretary and Director of
                               General Counsel and     MLAM; Senior Vice President, General Counsel, Director and Secretary
                               Secretary               of Princeton Services; Director of MLFD
Ronald M. Kloss              Senior Vice President   Senior Vice President and Controller of MLAM; Senior Vice President
                                                       and Controller of Princeton Services
Joseph T. Monagle, Jr.       Senior Vice President   Senior Vice President of MLAM; Senior Vice President of Princeton
                                                       Services
Gerald M. Richard            Senior Vice President   Senior Vice President and Treasurer of MLAM; Senior Vice President and
                               and Treasurer           Treasurer of Princeton Services; Vice President and Treasurer of
                                                       MLFD
Richard L. Rufener           Senior Vice President   Senior Vice President of MLAM; Senior Vice President of Princeton
                                                       Services; Vice President of MLFD
Ronald L. Welburn            Senior Vice President   Senior Vice President of MLAM; Senior Vice President of Princeton
                                                       Services
Anthony Wiseman              Senior Vice President   Senior Vice President of Princeton Services
</TABLE>
    

ITEM 29.  PRINCIPAL UNDERWRITERS.

   
    (a)  MLFD acts as the principal underwriter  for the Registrant and for each
of the open-end investment companies referred to in the first paragraph of  Item
28  except Apex Municipal Fund, Inc.,  CBA Money Fund, CMA Government Securities
Fund, CMA Money  Fund, CMA  Multi-State Municipal Series  Trust, CMA  Tax-Exempt
Fund,  CMA  Treasury  Fund,  Convertible  Holdings,  Inc.,  The  Corporate  Fund
Accumulation Program, Inc., Corporate High Yield Fund Inc., Corporate High Yield
Fund II, Inc., Emerging Tigers Fund, Inc., Income Opportunities Fund 1999, Inc.,
Income Opportunities Fund  2000, Inc.,  MuniAssets Fund,  Inc., MuniBond  Income
Fund,  Inc., The Municipal  Fund Accumulation Program,  Inc., MuniEnhanced Fund,
Inc., MuniInsured  Fund, Inc.,  MuniVest  Fund, Inc.,  MuniVest Fund  II,  Inc.,
MuniVest California Insured Fund, Inc., MuniVest Florida Fund, MuniVest Michigan
Insured  Fund, Inc.,  MuniVest New Jersey  Fund Inc., MuniVest  New York Insured
Fund, Inc., MuniVest Pennsylvania Fund, MuniYield Arizona Fund, Inc.,  MuniYield
Arizona  Fund II,  Inc., MuniYield  California Fund,  Inc., MuniYield California
Insured Fund,  Inc., MuniYield  Florida Fund,  MuniYield Florida  Insured  Fund,
MuniYield  Fund, Inc., MuniYield Insured Fund,  Inc., MuniYield Insured Fund II,
Inc., MuniYield  Michigan Fund,  Inc., MuniYield  Michigan Insured  Fund,  Inc.,
MuniYield  New  Jersey  Fund, Inc.,  MuniYield  New Jersey  Insured  Fund, Inc.,
MuniYield New York Insured Fund, Inc., MuniYield New York Insured Fund II, Inc.,
MuniYield  New  York  Insured  Fund  III,  Inc.,  MuniYield  Pennsylvania  Fund,
MuniYield  Quality  Fund, Inc.,  MuniYield Quality  Fund  II, Inc.,  Senior High
Income Portfolio, Inc., Senior High Income Portfolio II, Inc., Senior  Strategic
Income  Fund, Inc.,  Taurus MuniCalifornia  Holdings, Inc.,  Taurus MuniNew York
Holdings, Inc. and Worldwide DollarVest Fund, Inc.
    

   
    (b) Set forth below is information  concerning each director and officer  of
MLFD.  The principal  business address  of each  such person  is P.O.  Box 9011,
Princeton, New Jersey 08543-9011,  except that the  address of Messrs.  Aldrich,
Breen,  Crook, Fatseas, Graczyk  and Wasel is One  Financial Center, 15th Floor,
Boston, Massachusetts 02111-2646.
    

                                      C-6
<PAGE>

   
<TABLE>
<CAPTION>
                                               POSITIONS AND                   POSITIONS AND
                NAME                         OFFICES WITH MLFD            OFFICES WITH REGISTRANT
- ------------------------------------  --------------------------------  ----------------------------
<S>                                   <C>                               <C>
                (1)                                 (2)                             (3)
Terry K. Glenn                        President                         Executive Vice President
Arthur Zeikel                         Director                          President and Trustee
Philip L. Kirstein                    Director                          None
William E. Aldrich                    Senior Vice President             None
Robert W. Crook                       Senior Vice President             None
Kevin P. Boman                        Vice President                    None
Michael J. Brady                      Vice President                    None
William M. Breen                      Vice President                    None
Sharon Creveling                      Vice President and Assistant      None
                                        Treasurer
Mark A. DeSario                       Vice President                    None
James T. Fatseas                      Vice President                    None
Stanley Graczyk                       Vice President                    None
Debra W. Landsman-Yaros               Vice President                    None
Michelle T. Lau                       Vice President                    None
Gerald M. Richard                     Vice President and Treasurer      Treasurer
Richard L. Rufener                    Vice President                    None
Salvatore Venezia                     Vice President                    None
Robert Harris                         Secretary                         None
</TABLE>
    

    (c) Not applicable.

ITEM 30.  LOCATION OF ACCOUNTS AND RECORDS.

    All accounts, books and other documents required to be maintained by Section
31(a) of  the  Investment Company  Act  of 1940  and  the Rules  thereunder  are
maintained at the offices of the Registrant and Financial Data Services, Inc.

ITEM 31.  MANAGEMENT SERVICES.

    Other  than  as set  forth under  the  caption "Management  of the  Trust --
Management and Advisory Arrangements" in  the Prospectus constituting Part A  of
the  Registration Statement and under "Management of the Trust -- Management and
Advisory Arrangements" in the  Statement of Additional Information  constituting
Part  B  of  the  Registration  Statement, Registrant  is  not  a  party  to any
management-related service contract.

ITEM 32.  UNDERTAKINGS.

   
    (a) Not Applicable.
    

   
    (b) Not Applicable.
    

   
    (c) Registrant undertakes  to furnish each  person to whom  a prospectus  is
delivered  with a copy of the Registrant's latest annual report to shareholders,
upon request and without charge.
    

                                      C-7
<PAGE>
   
                                   SIGNATURES
    

   
    Pursuant  to  the  requirements  of  the  Securities  Act  of  1933  and the
Investment Company Act of  1940, the Registrant certifies  that it meets all  of
the  requirements for effectiveness  of this Registration  Statement pursuant to
Rule 485(b)  under  the  Securities  Act  of  1933  and  has  duly  caused  this
Registration  Statement to be signed on its behalf by the undersigned, thereunto
duly authorized, in the Township of Plainsboro, and State of New Jersey, on  the
17th day of October, 1994.
    

   
                                          MERRILL LYNCH MULTI-STATE MUNICIPAL
                                          __SERIES TRUST
    
   
                                                       (Registrant)
    

   
                                          By:__________/s/_ARTHUR ZEIKEL________
    
   
                                                 (Arthur Zeikel, President)
    

   
    Pursuant   to  the  requirements  of  the   Securities  Act  of  1933,  this
Registration Statement has  been signed below  by the following  persons in  the
capacities and on the dates indicated.
    

   
<TABLE>
<CAPTION>
                   SIGNATURE                                       TITLE                           DATE
- ------------------------------------------------  ----------------------------------------  -------------------

<C>                                               <S>                                       <C>
                /s/ARTHUR ZEIKEL                  President and Trustee
                (Arthur Zeikel)                    (Principal Executive Officer)             October 17, 1994

              /s/GERALD M. RICHARD                Treasurer (Principal Financial
              (Gerald M. Richard)                  and Accounting Officer)                   October 17, 1994

              KENNETH S. AXELSON*
              (Kenneth S. Axelson)                Trustee

               HERBERT I. LONDON*
              (Herbert I. London)                 Trustee

               ROBERT R. MARTIN*
               (Robert R. Martin)                 Trustee

                 JOSEPH L. MAY*
                (Joseph L. May)                   Trustee

                ANDRE F. PEROLD*
               (Andre F. Perold)                  Trustee

             *By: /s/ARTHUR ZEIKEL
         (Arthur Zeikel, Attorney-in-Fact)                                                   October 17, 1994
</TABLE>
    

                                      C-8
<PAGE>
   
                                 EXHIBIT INDEX
    

   
<TABLE>
<CAPTION>
 EXHIBIT
  NUMBER                                       DESCRIPTION
- ----------             ------------------------------------------------------------
<C>         <C>        <S>                                                           <C>
      5(b)     --      Supplement to Management Agreement between Registrant and
                        Fund Asset Management, L.P.
   6(a)(2)     --      Form of Revised Class A Shares Distribution Agreement
                        between Registrant and Merrill Lynch Funds Distributor,
                        Inc.
       (c)     --      Form of Class C Shares Distribution Agreement between
                        Registrant and Merrill Lynch Funds Distributor, Inc.
       (d)     --      Form of Class D Shares Distribution Agreement between
                        Registrant and Merrill Lynch Funds Distributor, Inc.
        11     --      Consent of Deloitte & Touche LLP, independent auditors for
                        Registrant.
     15(c)     --      Form of Class C Shares Distribution Plan and Class C Shares
                        Distribution Plan Sub-Agreement of the Registrant.
       (d)     --      Form of Class D Shares Distribution Plan and Class D Shares
                        Distribution Plan Sub-Agreement of the Registrant.
     17(a)     --      Financial Data Schedule for Class A Shares.
       (b)     --      Financial Data Schedule for Class B Shares.
</TABLE>
    
<PAGE>

                    APPENDIX FOR GRAPHIC AND IMAGE MATERIAL

     Pursuant to Rule 304 of Regulation S-T, the following table presents fair
and accurate narrative descriptions of graphic and image material omitted from
this EDGAR Submission file due to ASCII-incompatibility and cross-references
this material to the location of each occurrence in the text.

DESCRIPTION OF OMITTED                              LOCATION OF GRAPHIC
   GRAPHIC OR IMAGE                                   OR IMAGE IN TEXT
- ----------------------                              -------------------
Compass plate, circular                         Back cover of Prospectus and
graph paper and Merrill Lynch                     back cover of Statement of
logo including stylized market                    Additional Information
bull



<PAGE>

                                                                   EXHIBIT 5(b)









                   SUPPLEMENT TO INVESTMENT ADVISORY AGREEMENT
                                      WITH
                              FUND ASSET MANAGEMENT



As of January 1, 1994 Fund Asset Management was reorganized as a limited
partnership, formally known as Fund Asset Management, L.P. ("FAM").  The general
partner of FAM is Princeton Services, Inc. and the limited partners are Fund
Asset Management, Inc. and Merrill Lynch & Co, Inc.  Pursuant to Rule 202(a)(1)-
1 under the Investment Advisors Act of 1940 and Rule 2a-6 under the Investment
Company Act of 1940 such reorganization did not constitute an assignment of this
investment advisory agreement since it did not involve a change of control or
management of the investment adviser.  Pursuant to the requirements of Section
205 of the Investment Advisers Act of 1940, however, Fund Asset Management
hereby supplements this investment advisory agreement by undertaking to advise
you of any change in the membership of the partnership within a reasonable time
after any such change occurs.





                                   By /s/ Arthur Zeikel
                                     ------------------



Dated:  January 3, 1994




<PAGE>

                                                                 Exhibit 6(a)(2)

                                 CLASS A SHARES

                             DISTRIBUTION AGREEMENT


     AGREEMENT made as of the ____ day of October, 1994, between MERRILL LYNCH
MULTI-STATE MUNICIPAL SERIES TRUST, a Massachusetts business trust (the
"Trust"), and MERRILL LYNCH FUNDS DISTRIBUTOR, INC., a Delaware corporation (the
"Distributor").


                              W I T N E S S E T H :


     WHEREAS, the Trust is registered under the Investment Company Act of 1940,
as amended (the "Investment Company Act"), as an open-end investment company,
and it is affirmatively in the interest of the Trust to offer its shares for
sale continuously; and

     WHEREAS, the Trustees of the Trust (the "Trustees") are authorized to
establish separate series (the "Series") relating to separate portfolios of
securities, each of which will offer separate classes of shares of beneficial
interest, par value $0.10 per share (collectively referred to as "shares") to
selected groups of purchasers; and

     WHEREAS, the Trustees have established and designated the Merrill Lynch
[State] Municipal Bond Fund (the "Fund") as a series of the Trust; and

     WHEREAS, the Distributor is a securities firm engaged in the business of
selling shares of investment companies either directly to purchasers or through
other securities dealers; and

<PAGE>

     WHEREAS, the Trust and the Distributor wish to enter into an agreement with
each other with respect to the continuous offering of the Class A shares of
beneficial interest in the Fund.

     NOW, THEREFORE, the parties agree as follows:

     Section 1.  APPOINTMENT OF THE DISTRIBUTOR.  The Trust hereby appoints the
Distributor as the principal underwriter and distributor of the Trust to sell
Class A shares of beneficial interest in the Fund (sometimes herein referred to
as "Class A shares") to eligible investors (as defined below) and hereby agrees
during the term of this Agreement to sell Class A shares of the Fund to the
Distributor upon the terms and conditions herein set forth.

     Section 2.  EXCLUSIVE NATURE OF DUTIES.  The Distributor shall be the
exclusive representative of the Trust to act as principal underwriter and
distributor, except that:

     (a)  The Trust may, upon written notice to the Distributor, from time to
time designate other principal underwriters and distributors of Class A shares
with respect to areas other than the United States as to which the Distributor
may have expressly waived in writing its right to act as such.  If such
designation is deemed exclusive, the right of the Distributor under this
Agreement to sell Class A shares in the areas so designated shall terminate, but
this Agreement shall remain otherwise in full effect until terminated in
accordance with the other provisions hereof.


                                        2
<PAGE>
     (b)  The exclusive right granted to the Distributor to purchase Class A
shares from the Trust shall not apply to Class A shares issued in connection
with the merger or consolidation of any other investment company or personal
holding company with the Trust or the acquisition by purchase or otherwise of
all (or substantially all) the assets or the outstanding Class A shares of any
such company by the Trust.

     (c)  Such exclusive right also shall not apply to Class A shares issued
pursuant to reinvestment of dividends or capital gains distributions.

     (d)  Such exclusive right also shall not apply to Class A shares issued
pursuant to any conversion, exchange or reinstatement privilege afforded
redeeming shareholders or to any other Class A shares as shall be agreed between
the Trust and the Distributor from time to time.

     Section 3.  PURCHASE OF CLASS A SHARES FROM THE TRUST.

     (a)  The Distributor shall have the right to buy from the Trust the Class A
shares needed, but not more than the Class A shares needed (except for clerical
errors in transmission) to fill unconditional orders for Class A shares of the
Fund placed with the Distributor by eligible investors or securities dealers.
Investors eligible to purchase Class A shares shall be those persons so
identified in the currently effective prospectus and statement of additional
information of the Fund (the "prospectus" and "statement of additional
information", respectively) under the Securities Act of 1933, as amended (the
"Securities Act"),


                                        3
<PAGE>

relating to such Class A shares ("eligible investors").  The price which the
Distributor shall pay for the Class A shares so purchased from the Trust shall
be the net asset value, determined as set forth in Section 3(d) hereof, used in
determining the public offering price on which such orders were based.

     (b)  The Class A shares are to be resold by the Distributor to eligible
investors at the public offering price, as set forth in Section 3(c) hereof, or
to securities dealers having agreements with the Distributor upon the terms and
conditions set forth in Section 7 hereof.

     (c)  The public offering price(s) of the Class A shares, I.E., the price
per share at which the Distributor or selected dealers may sell Class A shares
to eligible investors, shall be the public offering price as set forth in the
prospectus and statement of additional information relating to such Class A
shares, but not to exceed the net asset value at which the Distributor is to
purchase the Class A shares, plus a sales charge not to exceed 4.00% of the
public offering price (4.17% of the net amount invested), subject to reductions
for volume purchases.  Class A shares may be sold to certain Trustees, officers
and employees of the Trust, directors and employees of Merrill Lynch & Co., Inc.
and its subsidiaries, and to certain other persons described in the prospectus
and statement of additional information, without a sales charge or at a reduced
sales charge, upon terms and conditions set forth in the prospectus and
statement of additional information.  If the


                                        4
<PAGE>

public offering price does not equal an even cent, the public offering price may
be adjusted to the nearest cent.  All payments to the Trust hereunder shall be
made in the manner set forth in Section 3(f).

     (d)  The net asset value of Class A shares shall be determined by the Trust
or any agent of the Trust in accordance with the method set forth in the
prospectus and statement of additional information of the Fund and guidelines
established by the Trustees.

     (e)  The Trust shall have the right to suspend the sale of its Class A
shares at times when redemption is suspended pursuant to the conditions set
forth in Section 4(b) hereof.  The Trust shall also have the right to suspend
the sale of its Class A shares if trading on the New York Stock Exchange shall
have been suspended, if a banking moratorium shall have been declared by Federal
or New York authorities, or if there shall have been some other event, which, in
the judgment of the Trust, makes it impracticable or inadvisable to sell the
Class A shares.

     (f)  The Trust, or any agent of the Trust designated in writing by the
Trust, shall be promptly advised of all purchase orders for Class A shares
received by the Distributor.  Any order may be rejected by the Trust; provided,
however, that the Trust will not arbitrarily or without reasonable cause refuse
to accept or confirm orders for the purchase of Class A shares from eligible
investors.  The Trust (or its agent) will confirm orders upon their receipt,
will make appropriate book entries and, upon


                                        5
<PAGE>

receipt by the Trust (or its agent) of payment therefor, will deliver deposit
receipts or certificates for such Class A shares pursuant to the instructions of
the Distributor.  Payment shall be made to the Trust in New York Clearing House
funds.  The Distributor agrees to cause such payment and such instructions to be
delivered promptly to the Trust (or its agent).

     Section 4.  REPURCHASE OR REDEMPTION OF CLASS A SHARES BY THE TRUST.

     (a)  Any of the outstanding Class A shares may be tendered for redemption
at any time, and the Trust agrees to repurchase or redeem the Class A shares so
tendered in accordance with its obligations as set forth in Article VIII of its
Declaration of Trust, as amended from time to time, and in accordance with the
applicable provisions set forth in the prospectus and statement of additional
information.  The price to be paid to redeem or repurchase the Class A shares
shall be equal to the net asset value calculated in accordance with the
provisions of Section 3(d) hereof, less any contingent deferred sales charge
("CDSC"), redemption fee or other charge(s), if any, set forth in the prospectus
and statement of additional information of the Fund.  All payments by the Trust
hereunder shall be made in the manner set forth below.  The redemption or
repurchase by the Trust of any of the Class A shares purchased by or through the
Distributor will not affect the sales charge secured by the Distributor or any
selected dealer in the course of the original sale, except that if any Class A
shares are tendered for redemption or repur-


                                        6
<PAGE>

chase within seven business days after the date of the confirmation of the
original purchase, the right to the sales charge shall be forfeited by the
Distributor and the selected dealer which sold such Class A shares.

     The Trust shall pay the total amount of the redemption price as defined in
the above paragraph pursuant to the instructions of the Distributor in New York
Clearing House funds on or before the seventh business day subsequent to its
having received the notice of redemption in proper form.  The proceeds of any
redemption of shares shall be paid by the Trust as follows:  (i) any applicable
CDSC shall be paid to the Distributor, and (ii) the balance shall be paid to or
for the account of the shareholder, in each case in accordance with the
applicable provisions of the prospectus and statement of additional information.

     (b)  Redemption of Class A shares or payment may be suspended at times when
the New York Stock Exchange is closed, when trading on said Exchange is
suspended, when trading on said Exchange is restricted, when an emergency exists
as a result of which disposal by the Trust of securities owned by it is not
reasonably practicable or it is not reasonably practicable for the Trust fairly
to determine the value of the net assets of the Fund, or during any other period
when the Securities and Exchange Commission, by order, so permits.

     Section 5.  DUTIES OF THE TRUST.

     (a)  The Trust shall furnish to the Distributor copies of all information,
financial statements and other papers which the


                                        7
<PAGE>

Distributor may reasonably request for use in connection with the distribution
of Class A shares of the Fund, and this shall include, upon request by the
Distributor, one certified copy of all  financial statements prepared for the
Trust by independent public accountants.  The Trust shall make available to the
Distributor such number of copies of the prospectus and statement of additional
information relating to the Fund as the Distributor shall reasonably request.

     (b)  The Trust shall take, from time to time, but subject to any necessary
approval of the Class A shareholders, all necessary action to fix the number of
authorized Class A shares and such steps as may be necessary to register the
same under the Securities Act, to the end that there will be available for sale
such number of Class A shares as the Distributor may reasonably be expected to
sell.

     (c)  The Trust shall use its best efforts to qualify and maintain the
qualification of an appropriate number of its Class A shares for sale under
the securities laws of such states as the Distributor and the Trust may
approve.  Any such qualification may be withheld, terminated or withdrawn by
the Trust at any time in its discretion.  As provided in Section 8(c) hereof,
the expense of qualification and maintenance of qualification shall be borne
by the Trust.  The Distributor shall furnish such information and other
material relating to its affairs and activities as may be required by the Trust
in connection with such qualification.


                                        8
<PAGE>

     (d)  The Trust will furnish, in reasonable quantities upon request by the
Distributor, copies of annual and interim reports of the Fund.

     Section 6.  DUTIES OF THE DISTRIBUTOR.

     (a)  The Distributor shall devote reasonable time and effort to effect
sales of Class A shares of the Fund but shall not be obligated to sell any
specific number of Class A shares.  The services of the Distributor to the Trust
hereunder are not to be deemed exclusive and nothing herein contained shall
prevent the Distributor from entering into like arrangements with other
investment companies so long as the performance of its obligations hereunder is
not impaired thereby.

     (b)  In selling the Class A shares of the Fund, the Distributor shall use
its best efforts in all respects duly to conform with the requirements of all
Federal and state laws relating to the sale of such securities.  Neither the
Distributor nor any selected dealer, as defined in Section 7 hereof, nor any
other person is authorized by the Trust to give any information or to make any
representations, other than those contained in the registration statement or
related prospectus and statement of additional information and any sales
literature specifically approved by the Trust.

     (c)  The Distributor shall adopt and follow procedures, as approved by the
officers of the Trust, for the confirmation of sales to eligible investors and
selected dealers, the collection of amounts payable by eligible investors and
selected dealers on


                                        9
<PAGE>

such sales, and the cancellation of unsettled transactions, as may be necessary
to comply with the requirements of the National Association of Securities
Dealers, Inc. (the "NASD"), as such requirements may from time to time exist.

     Section 7.  SELECTED DEALERS AGREEMENTS.

     (a)  The Distributor shall have the right to enter into selected dealers
agreements with securities dealers of its choice ("selected dealers") for the
sale of Class A shares and fix therein the portion of the sales charge which may
be allocated to the selected dealers; provided that the Trust shall approve the
forms of agreements with dealers and the dealer compensation set forth therein.
Class A shares sold to selected dealers shall be for resale by such dealers only
at the public offering price(s) set forth in the prospectus and statement of
additional information.  The form of agreement with selected dealers to be used
during the continuous offering of the Class A shares is attached hereto as
Exhibit A.

     (b)  Within the United States, the Distributor shall offer and sell Class A
shares only to such selected dealers as are members in good standing of the
NASD.

     Section 8.  PAYMENT OF EXPENSES.

     (a)  The Trust shall bear all costs and expenses of the Fund, including
fees and disbursements of its counsel and auditors, in connection with the
preparation and filing of any required registration statements and/or
prospectuses and statements of additional information under the Investment
Company


                                       10
<PAGE>

Act, the Securities Act, and all amendments and supplements thereto, and
preparing and mailing annual and interim reports and proxy materials to Class A
shareholders (including but not limited to the expense of setting in type any
such registration statements, prospectuses, statements of additional
information, annual or interim reports or proxy materials).

     (b)  The Distributor shall be responsible for any payments made to selected
dealers as reimbursement for their expenses associated with payments of sales
commissions to financial consultants.  In addition, after the prospectuses,
statements of additional information and annual and interim reports have been
prepared and set in type, the Distributor shall bear the costs and expenses of
printing and distributing any copies thereof which are to be used in connection
with the offering of Class A shares to selected dealers or eligible investors
pursuant to this Agreement.  The Distributor shall bear the costs and expenses
of preparing, printing and distributing any other literature used by the
Distributor or furnished by it for use by selected dealers in connection with
the offering of the Class A shares for sale to eligible investors and any
expenses of advertising incurred by the Distributor in connection with such
offering.

     (c)  The Trust shall bear the cost and expenses of qualification of the
Class A shares for sale pursuant to this Agreement and, if necessary or
advisable in connection therewith, of qualifying the Trust as a broker or dealer
in such states of the United States or other jurisdictions as shall be selected
by the


                                       11
<PAGE>

Trust and the Distributor pursuant to Section 5(c) hereof and the cost and
expenses payable to each such state for continuing qualification therein until
the Fund decides to discontinue such qualification pursuant to Section 5(c)
hereof.

     Section 9.  INDEMNIFICATION.

     (a)  The Trust shall indemnify and hold harmless the Distributor and each
person, if any, who controls the Distributor against any loss, liability, claim,
damage or expense (including the reasonable cost of investigating or defending
any alleged loss, liability, claim, damage or expense and reasonable counsel
fees incurred in connection therewith), as incurred, arising by reason of any
person acquiring any Class A shares, which may be based upon the Securities Act,
or on any other statute or at common law, on the ground that the registration
statement or related prospectus and statement of additional information relating
to the Fund, as from time to time amended and supplemented, or an annual or
interim report to shareholders of the Fund, includes an untrue statement of a
material fact or omits to state a material fact required to be  stated therein
or necessary in order to make the statements therein not misleading, unless such
statement or omission was made in reliance upon, and in conformity with,
information furnished to the Trust in connection therewith by or on behalf of
the Distributor; provided, however, that in no case (i) is the indemnity of the
Trust in favor of the Distributor and any such controlling persons to be deemed
to protect such Distributor or any such controlling persons thereof against any


                                       12
<PAGE>

liability to the Trust or its security holders to which the Distributor or any
such controlling persons would otherwise be subject by reason of willful
misfeasance, bad faith or gross negligence in the performance of their duties or
by reason of the reckless disregard of their obligations and duties under this
Agreement; or (ii) is the Trust to be liable under its indemnity agreement
contained in this paragraph with respect to any claim made against the
Distributor or any such controlling persons, unless the Distributor or such
controlling persons, as the case may be, shall have notified the Trust in
writing within a reasonable time after the summons or other first legal process
giving information of the nature of the claim shall have been served upon the
Distributor or such controlling persons (or after the Distributor or such
controlling persons shall have received notice of such service on any designated
agent), but failure to notify the Trust of any such claim shall not relieve it
from any liability which it may have to the person against whom such action is
brought otherwise than on account of its indemnity agreement contained in this
paragraph.  The Trust will be entitled to participate at its own expense in the
defense or, if it so elects, to assume the defense of any suit brought to
enforce any such liability, but if the Trust elects to assume the defense, such
defense shall be conducted by counsel chosen by it and satisfactory to the
Distributor or such controlling person or persons, defendant or defendants in
the suit.  In the event the Trust elects to assume the defense of any such suit
and retain


                                       13
<PAGE>

such counsel, the Distributor or such controlling person or persons, defendant
or defendants in the suit shall bear the fees and expenses of any additional
counsel retained by them, but in case the Trust does not elect to assume the
defense of any such suit, it will reimburse the Distributor or such controlling
person or persons, defendant or defendants in the suit, for the reasonable fees
and expenses of any counsel retained by them.  The Trust shall promptly notify
the Distributor of the commencement of any litigation or proceedings against it
or any of its officers or Trustees in connection with the issuance or sale of
any of the Class A shares.

     (b)  The Distributor shall indemnify and hold harmless the Trust and each
of its Trustees and officers and each person, if any, who controls the Trust
against any loss, liability, claim, damage or expense described in the foregoing
indemnity contained in subsection (a) of this Section, but only with respect to
statements or omissions made in reliance upon, and in conformity with,
information furnished to the Trust in writing by or on behalf of the Distributor
for use in connection with the registration statement or related prospectus and
statement of additional information, as from time to time amended, or the annual
or interim reports to Class A shareholders.  In case any action shall be brought
against the Trust or any person so indemnified, in respect of which indemnity
may be sought against the Distributor, the Distributor shall have the rights and
duties given to the Trust, and the Trust and each person so indemnified


                                       14
<PAGE>

shall have the rights and duties given to the Distributor by the provisions of
subsection (a) of this Section 9.

     Section 10.  MERRILL LYNCH MUTUAL FUND ADVISER PROGRAM.  In connection with
the Merrill Lynch Mutual Fund Adviser Program, the Distributor and its
affiliate, Merrill Lynch, Pierce, Fenner & Smith Incorporated, are authorized to
offer and sell shares of the Fund, as agent for the Fund, to participants in
such program.  The terms of this Agreement shall apply to such sales, including
terms as to the offering price of shares, the proceeds to be paid to the Fund,
the duties of the Distributor, the payment of expenses and indemnification
obligations of the Fund and the Distributor.

     Section 11.  DURATION AND TERMINATION OF THIS AGREEMENT.  This Agreement
shall become effective as of the date first above written and shall remain in
force until October __, 1996 and thereafter, but only for so long as such
continuance is specifically approved at least annually by (i) the Trustees or by
the vote of a majority of the outstanding Class A voting securities of the Fund
and (ii) by the vote of a majority of those Trustees who are not parties to this
Agreement or interested persons of any such party cast in person at a meeting
called for the purpose of voting on such approval.

     This Agreement may be terminated at any time, without the payment of any
penalty, by the Trustees or by vote of a majority of the outstanding Class A
voting securities of the Fund, or by the Distributor, on sixty days' written
notice to the other


                                       15
<PAGE>

party.  This Agreement shall automatically terminate in the event of its
assignment.

     The terms "vote of a majority of the outstanding voting securities",
"assignment", "affiliated person" and "interested person", when used in this
Agreement, shall have the respective meanings specified in the Investment
Company Act.

     Section 12.  AMENDMENTS OF THIS AGREEMENT.  This Agreement may be amended
by the parties only if such amendment is specifically approved by (i) the
Trustees or by the vote of a majority of outstanding Class A voting securities
of the Fund and (ii) by the vote of a majority of those Trustees of the Trust
who are not parties to this Agreement or interested persons of any such party
cast in person at a meeting called for the purpose of voting on such approval.

     Section 13.  GOVERNING LAW.  The provisions of this Agreement shall be
construed and interpreted in accordance with the laws of the State of New York
as at the time in effect and the applicable provisions of the Investment Company
Act.  To the extent that the applicable law of the State of New York, or any of
the provisions herein, conflict with the applicable provisions of the Investment
Company Act, the latter shall control.

     Section 14.  This Agreement supersedes the prior Distribution Agreement
entered into by the parties hereto with respect to the Class A shares of the
Fund.

     Section 15.  PERSONAL LIABILITY.  The Declaration of Trust establishing
Merrill Lynch Multi-State Municipal Series Trust,


                                       16
<PAGE>

dated August 2, 1985, a copy of which, together with all amendments thereto (the
"Declaration"), is on file in the office of the Secretary of the Commonwealth of
Massachusetts, provides that the name "Merrill Lynch Multi-State Municipal
Series Trust" refers to the Trustees under the Declaration collectively as
trustees, but not as individuals or personally; and no Trustee, shareholder,
officer, employee or agent of said Trust shall be held to any personal
liability, nor shall resort be had to their private property for the
satisfaction of any obligation or claim or otherwise in connection with the
affairs of said Trust, but the "Trust Property" only shall be liable.

     IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the day and year first above written.


                    MERRILL LYNCH MULTI-STATE
                    MUNICIPAL SERIES TRUST



                    By
                      -------------------------------------
                         Title:

                    MERRILL LYNCH FUNDS DISTRIBUTOR, INC.


                    By
                      -------------------------------------
                         Title:


                                       17
<PAGE>

                                                                       EXHIBIT A


                    MERRILL LYNCH [STATE] MUNICIPAL BOND FUND
                MERRILL LYNCH MULTI-STATE MUNICIPAL SERIES TRUST

                      CLASS A SHARES OF BENEFICIAL INTEREST

                           SELECTED DEALERS AGREEMENT


Gentlemen:

     Merrill Lynch Funds Distributor, Inc. (the "Distributor") has an agreement
with MERRILL LYNCH MULTI-STATE MUNICIPAL SERIES TRUST, a Massachusetts business
trust (the "Trust"), pursuant to which it acts as the distributor for the sale
of Class A shares of beneficial interest, par value $0.10 per share (herein
referred to as "Class A shares"), of the Trust relating to Merrill Lynch [State]
Municipal Bond Fund (the "Fund"), and as such has the right to distribute Class
A shares of the Fund for resale.  The Trust is an open-end investment company
registered under the Investment Company Act of 1940, as amended, and the Fund's
Class A shares are registered under the Securities Act of 1933, as amended.  You
have received a copy of the Class A shares Distribution Agreement (the
"Distribution Agreement") between ourself and the Trust and reference is made
herein to certain provisions of such Distribution Agreement.  The terms
"Prospectus" and "Statement of Additional Information" used herein refer to the
prospectus and statement of additional information, respectively, on file with
the Securities and Exchange Commission which is part of the most recent
effective registration statement pursuant to the Securities Act of 1933, as
amended.  We offer to sell to you, as a member of the Selected Dealers Group,
Class A shares of the Fund for resale to investors identified in the Prospectus
and Statement of Additional Information as eligible to purchase Class A shares
("eligible investors") upon the following terms and conditions:

     1.   In all sales of these Class A shares to eligible investors, you shall
act as dealer for your own account and in no transaction shall you have any
authority to act as agent for the Trust, for us or for any other member of the
Selected Dealers Group, except in connection with the Merrill Lynch Mutual Fund
Adviser program and such other special programs as we from time to time agree,
in which case you shall have authority to offer and sell shares, as agent for
the Trust, to participants in such program.

<PAGE>

     2.   Orders received from you will be accepted through us only at the
public offering price applicable to each order, as set forth in the current
Prospectus and Statement of Additional Information of the Fund.  The procedure
relating to the handling of orders shall be subject to Section 5 hereof and
instructions which we or the Trust shall forward from time to time to you.  All
orders are subject to acceptance or rejection by the Distributor or the Trust in
the sole discretion of either.  The minimum initial and subsequent purchase
requirements are as set forth in the current Prospectus and Statement of
Additional Information of the Fund.

     3.   The sales charges for sales to eligible investors, computed as
percentages of the public offering price and the amount invested, and the
related discount to Selected Dealers are as follows:


<TABLE>
<CAPTION>
                                                            Discount to
                                          Sales Charge       Selected
                          Sales Charge   as Percentage*     Dealers as
                         as Percentage     of the Net       Percentage
                             of the          Amount           of the
Amount of Purchase       Offering Price     Invested      Offering Price
- ------------------       --------------  -------------    --------------

<S>                      <C>             <C>              <C>
Less than
$25,000...............        4.00%            4.17%            3.75%

$25,000 but less
 than $50,000.........        3.75%            3.90%            3.50%

$50,000 but less
 than $100,000........        3.25%            3.36%            3.00%

$100,000 but less
 than $250,000........        2.50%            2.56%            2.25%

$250,000 but less
 than $1,000,000......        1.50%            1.52%            1.25%


$1,000,000 and over**.        0.00%            0.00%            0.00%

<FN>
___________________

*  Rounded to the nearest one-hundredth percent.
** Initial sales charges may be waived for certain classes of offerees as set
forth in the current Prospectus and Statement of Additional Information of the
Fund.  Such purchase may be subject to a contingent deferred sales


                                       A-2
<PAGE>

charge as set forth in the current Prospectus and Statement of Additional
Information.
</TABLE>

     The term "purchase" refers to a single purchase by an individual, or to
concurrent purchases, which in the aggregate are at least equal to the
prescribed amounts, by an individual, his spouse and their children under the
age of 21 years purchasing Class A shares for his or their own account and to
single purchases by a trustee or other fiduciary purchasing Class A shares for a
single trust estate or single fiduciary account although more than one
beneficiary is involved.  The term "purchase" also includes purchases by any
"company" as that term is defined in the Investment Company Act of 1940, as
amended, but does not include purchases by any such company which has not been
in existence for at least six months or which has no purpose other than the
purchase of Class A shares of the Fund or Class A shares of other registered
investment companies at a discount; provided, however, that it shall not include
purchases by any group of individuals whose sole organizational nexus is that
the participants therein are credit cardholders of a company, policyholders of
an insurance company, customers of either a bank or broker-dealer or clients of
an investment adviser.

     The reduced sales charges are applicable through a right of accumulation
under which certain eligible investors are permitted to purchase Class A shares
of the Fund at the offering price applicable to the total of (a) the public
offering price of the shares then being purchased plus (b) an amount equal to
the then current net asset value or cost, whichever is higher, of the
purchaser's combined holdings of Class A, Class B, Class C and Class D shares of
the Fund and of any other investment company with an initial sales charge for
which the Distributor acts as the distributor.  For any such right of
accumulation to be made available, the Distributor must be provided at the time
of purchase, by the purchaser or you, with sufficient information to permit
confirmation of qualification, and acceptance of the purchase order is subject
to such confirmation.

     The reduced sales charges are applicable to purchases aggregating $25,000
or more of Class A shares or of Class D shares of any other investment company
with an initial sales charge for which the Distributor acts as the distributor
made through you within a thirteen-month period starting with the first purchase
pursuant to a Letter of Intention in the form provided in the Prospectus.  A
purchase not originally made pursuant to a Letter of Intention may be included
under a subsequent letter executed within 90 days of such purchase if the
Distributor is informed in writing of this intent within such 90-day period.  If
the


                                       A-3
<PAGE>

intended amount of shares is not purchased within the thirteen-month period, an
appropriate price adjustment will be made pursuant to the terms of the Letter of
Intention.

     You agree to advise us promptly at our request as to amounts of any sales
made by you to eligible investors qualifying for reduced sales charges.  Further
information as to the reduced sales charges pursuant to the right of
accumulation or a Letter of Intention is set forth in the Prospectus and
Statement of Additional Information.

     4.   You shall not place orders for any of the Class A shares unless you
have already received purchase orders for such Class A shares at the applicable
public offering prices and subject to the terms hereof and of the Distribution
Agreement.  You agree that you will not offer or sell any of the Class A shares
except under circumstances that will result in compliance with the applicable
Federal and state securities laws and that in connection with sales and offers
to sell Class A shares you will furnish to each person to whom any such sale or
offer is made a copy of the Prospectus and, if requested, the Statement of
Additional Information (as then amended or supplemented) and will not furnish to
any person any information relating to the Class A shares of the Fund which is
inconsistent in any respect with the information contained in the Prospectus and
Statement of Additional Information  (as then amended or supplemented) or cause
any advertisement to be published in any newspaper or posted in any public place
without our consent and the consent of the Trust.

     5.   As a selected dealer, you are hereby authorized (i) to place orders
directly with the Trust for Class A shares of the Fund to be resold by us to you
subject to the applicable terms and conditions governing the placement of orders
by us set forth in Section 3 of the Distribution Agreement and subject to the
compensation provisions of Section 3 hereof and (ii) to tender Class A shares
directly to the Trust or its agent for redemption subject to the applicable
terms and conditions set forth in Section 4 of the Distribution Agreement.

     6.   You shall not withhold placing orders received from your customers so
as to profit yourself as a result of such withholding:  E.G., by a change in the
"net asset value" from that used in determining the offering price to your
customers.

     7.   If any Class A shares sold to you under the terms of this Agreement
are repurchased by the Trust or by us for the account of the Trust or are
tendered for redemption within seven


                                       A-4
<PAGE>

business days after the date of the confirmation of the original purchase by
you, it is agreed that you shall forfeit your right to, and refund to us, any
discount received by you on such Class A shares.

     8.  No person is authorized to make any representations concerning Class A
shares of the Fund except those contained in the current Prospectus and
Statement of Additional Information of the Fund and in such printed information
subsequently issued by us or the Trust as information supplemental to such
Prospectus and Statement of Additional Information.  In purchasing Class A
shares through us you shall rely solely on the representations contained in the
Prospectus and Statement of Additional Information and supplemental information
above mentioned.  Any printed information which we furnish you other than the
Fund's Prospectus, Statement of Additional Information, periodic reports and
proxy solicitation material is our sole responsibility and not the
responsibility of the Trust, and you agree that the Trust shall have no
liability or responsibility to you in these respects unless expressly assumed in
connection therewith.

     9.   You agree to deliver to each of the purchasers making purchases from
you a copy of the then current Prospectus and, if requested, the Statement of
Additional Information at or prior to the time of offering or sale and you agree
thereafter to deliver to such purchasers copies of the annual and interim
reports and proxy solicitation materials of the Fund.  You further agree to
endeavor to obtain proxies from such purchasers.  Additional copies of the
Prospectus and Statement of Additional Information, annual or interim reports
and proxy solicitation materials of the Fund will be supplied to you in
reasonable quantities upon request.

     10.  We reserve the right in our discretion, without notice, to suspend
sales or withdraw the offering of Class A shares entirely or to certain persons
or entities in a class or classes specified by us.  Each party hereto has the
right to cancel this agreement upon notice to the other party.

     11.  We shall have full authority to take such action as we may deem
advisable in respect of all matters pertaining to the continuous offering.  We
shall be under no liability to you except for lack of good faith and for
obligations expressly assumed by us herein.  Nothing contained in this paragraph
is intended to operate as, and the provisions of this paragraph shall not in any
way whatsoever constitute, a waiver by you of compliance with any provision of
the Securities Act of 1933, as


                                       A-5
<PAGE>

amended, or of the rules and regulations of the Securities and Exchange
Commission issued thereunder.

     12.  You represent that you are a member of the National Association of
Securities Dealers, Inc. and, with respect to any sales in the United States, we
both hereby agree to abide by the Rules of Fair Practice of such Association.

     13.  Upon application to us, we will inform you as to the states in which
we believe the Class A shares have been qualified for sale under, or are exempt
from the requirements of, the respective securities laws of such states, but we
assume no responsibility or obligation as to your right to sell Class A shares
in any jurisdiction.  We will file with the Department of State in New York a
Further State Notice with respect to the Class A shares, if necessary.

     14.  All communications to us should be sent to the address below.  Any
notice to you shall be duly given if mailed or telegraphed to you at the address
specified by you below.

     15.  Your first order placed pursuant to this Agreement for the purchase of
Class A shares of the Fund will represent your acceptance of this Agreement.

                         MERRILL LYNCH FUNDS DISTRIBUTOR, INC.


                         By
                            ----------------------------------
                              (Authorized Signature)


                                       A-6
<PAGE>

Please return one signed copy
     of this agreement to:

     MERRILL LYNCH FUNDS DISTRIBUTOR, INC.
     Box 9011
     Princeton, New Jersey 08543-9011

     Accepted:

          Firm Name: Merrill Lynch, Pierce, Fenner & Smith Inc.
                    --------------------------------------------

          By:
             --------------------------------------------

          Address:  800 Scudders Mill Road
                  -------------------------------------

                    Plainsboro, New Jersey 08536
          ----------------------------------------------
          Date:            , 1994


                                       A-7


<PAGE>

                                                                    Exhibit 6(c)

                                 CLASS C SHARES

                             DISTRIBUTION AGREEMENT


     AGREEMENT made as of the ______ day of October, 1994, between MERRILL LYNCH
MULTI-STATE MUNICIPAL SERIES TRUST, a Massachusetts business trust (the
"Trust"), and MERRILL LYNCH FUNDS DISTRIBUTOR, INC., a Delaware corporation (the
"Distributor").


                              W I T N E S S E T H :


     WHEREAS, the Trust is registered under the Investment Company Act of 1940,
as amended (the "Investment Company Act"), as an open-end investment company,
and it is affirmatively in the interest of the Trust to offer its shares for
sale continuously; and

     WHEREAS, the Trustees of the Trust (the "Trustees") are authorized to
establish separate series (the "Series") relating to separate portfolios of
securities, each of which will offer separate classes of shares of beneficial
interest, par value $0.10 per share (collectively referred to as "shares") to
selected groups of purchasers; and

     WHEREAS, the Trustees have established and designated the Merrill Lynch
[State] Municipal Bond Fund (the "Fund") as a series of the Trust; and

<PAGE>

     WHEREAS, the Distributor is a securities firm engaged in the business of
selling shares of investment companies either directly to purchasers or through
other securities dealers; and

     WHEREAS, the Trust and the Distributor wish to enter into an agreement with
each other with respect to the continuous offering of the Fund's Class C shares
in order to promote the growth of the Fund and facilitate the distribution of
its Class C shares.

     NOW, THEREFORE, the parties agree as follows:

     Section 1.  APPOINTMENT OF THE DISTRIBUTOR.  The Trust hereby appoints the
Distributor as the principal underwriter and distributor of the Trust to sell
Class C shares of beneficial interest in the Fund (sometimes herein referred to
as "Class C shares") to the public and hereby agrees during the term of this
Agreement to sell shares of the Fund to the Distributor upon the terms and
conditions herein set forth.

     Section 2.  EXCLUSIVE NATURE OF DUTIES.  The Distributor shall be the
exclusive representative of the Trust to act as principal underwriter and
distributor of the Class C shares of the Fund, except that:

     (a)  The Trust may, upon written notice to the Distributor, from time to
time designate other principal underwriters and distributors of Class C shares
with respect to areas other than the United States as to which the Distributor
may have expressly waived in writing its right to act as such.  If such
designation is deemed exclusive, the right of the Distributor under this


                                        2
<PAGE>

Agreement to sell Class C shares in the areas so designated shall terminate, but
this Agreement shall remain otherwise in full effect until terminated in
accordance with the other provisions hereof.

     (b)  The exclusive right granted to the Distributor to purchase Class C
shares from the Trust shall not apply to Class C shares of the Fund issued in
connection with the merger or consolidation of any other investment company or
personal holding company with the Trust or the acquisition by purchase or
otherwise of all (or substantially all) the assets or the outstanding Class C
shares of any such company by the Trust.

     (c)  Such exclusive right also shall not apply to Class C shares issued
pursuant to reinvestment of dividends or capital gains distributions.

     (d)  Such exclusive right also shall not apply to Class C shares issued
pursuant to any conversion, exchange or reinstatement privilege afforded
redeeming shareholders or to any other Class C shares as shall be agreed between
the Trust and the Distributor from time to time.

     Section 3. PURCHASE OF CLASS C SHARES FROM THE TRUST.

     (a)  The Distributor shall have the right to buy from the Trust the Class C
shares needed, but not more than the Class C shares needed (except for clerical
errors in transmission) to fill unconditional orders for Class C shares of the
Fund placed with the Distributor by eligible investors or securities dealers.


                                        3
<PAGE>

Investors eligible to purchase Class C shares shall be those persons so
identified in the currently effective prospectus and statement of additional
information of the Fund (the "prospectus" and "statement of additional
information", respectively) under the Securities Act of 1933, as amended (the
"Securities Act"), relating to such Class C shares. The price which the
Distributor shall pay for the Class C shares so purchased from the Trust shall
be the net asset value, determined as set forth in Section 3(c) hereof.

     (b)  The Class C shares are to be resold by the Distributor to investors at
net asset value, as set forth in Section 3(c) hereof, or to securities dealers
having agreements with the Distributor upon the terms and conditions set forth
in Section 7 hereof.

     (c)  The net asset value of Class C shares of the Fund shall be determined
by the Trust or any agent of the Trust in accordance with the method set forth
in the prospectus and statement of additional information and guidelines
established by the Board of Trustees.

     (d)  The Trust shall have the right to suspend the sale of its Class C
shares at times when redemption is suspended pursuant to the conditions set
forth in Section 4(b) hereof.  The Trust shall also have the right to suspend
the sale of its Class C shares if trading on the New York Stock Exchange shall
have been suspended, if a banking moratorium shall have been declared by


                                        4
<PAGE>

Federal or New York authorities, or if there shall have been some other event,
which, in the judgment of the Trust, makes it impracticable or inadvisable to
sell the Class C shares.

     (e)  The Trust, or any agent of the Trust designated in writing by the
Trust, shall be promptly advised of all purchase orders for Class C shares
received by the Distributor.  Any order may be rejected by the Trust; provided,
however, that the Trust will not arbitrarily or without reasonable cause refuse
to accept or confirm orders for the purchase of Class C shares.  The Trust (or
its agent) will confirm orders upon their receipt, will make appropriate book
entries and, upon receipt by the Trust (or its agent) of payment therefor, will
deliver deposit receipts or certificates for such Class C shares pursuant to the
instructions of the Distributor.  Payment shall be made to the Trust in New York
Clearing House funds.  The Distributor agrees to cause such payment and such
instructions to be delivered promptly to the Trust (or its agent).

     Section 4.  REPURCHASE OR REDEMPTION OF CLASS C SHARES BY THE TRUST.

     (a)  Any of the outstanding Class C shares may be tendered for redemption
at any time, and the Trust agrees to repurchase or redeem the Class C shares so
tendered in accordance with its obligations as set forth in Article VIII of its
Declaration of Trust, as amended from time to time, and in accordance with the
applicable provisions set forth in the prospectus and statement


                                        5
<PAGE>

of additional information of the Fund.  The price to be paid to redeem or
repurchase the Class C shares shall be equal to the net asset value calculated
in accordance with the provisions of Section 3(c) hereof, less any contingent
deferred sales charge ("CDSC"), redemption fee or other charge(s), if any, set
forth in the prospectus and statement of additional information of the Fund.
All payments by the Trust hereunder shall be made in the manner set forth below.

     The Trust shall pay the total amount of the redemption price as defined in
the above paragraph pursuant to the instructions of the Distributor on or before
the seventh business day subsequent to its having received the notice of
redemption in proper form.  The proceeds of any redemption of shares shall be
paid by the Trust as follows:  (i) any applicable CDSC shall be paid to the
Distributor, and (ii) the balance shall be paid to or for the account of the
shareholder, in each case in accordance with the applicable provisions of the
prospectus and statement of additional information.

     (b)  Redemption of Class C shares or payment may be suspended at times when
the New York Stock Exchange is closed, when trading on said Exchange is
suspended, when trading on said Exchange is restricted, when an emergency exists
as a result of which disposal by the Trust of securities owned by it is not
reasonably practicable or it is not reasonably practicable for the Trust fairly
to determine the value of the net assets of the


                                        6
<PAGE>

Fund, or during any other period when the Securities and Exchange Commission, by
order, so permits.

     Section 5.  DUTIES OF THE TRUST.

     (a)  The Trust shall furnish to the Distributor copies of all information,
financial statements and other papers which the Distributor may reasonably
request for use in connection with the  distribution of Class C shares of the
Fund, and this shall include, upon request by the Distributor, one certified
copy of all financial statements prepared for the Trust by independent public
accountants.  The Trust shall make available to the Distributor such number of
copies of the prospectus and statement of additional information relating to the
Fund as the Distributor shall reasonably request.

     (b)  The Trust shall take, from time to time, but subject to any necessary
approval of the shareholders, all necessary action to fix the number of
authorized shares and such steps as may be necessary to register the same under
the Securities Act to the end that there will be available for sale such number
of Class C shares as the Distributor reasonably may be expected to sell.

     (c)  The Trust shall use its best efforts to qualify and maintain the
qualification of an appropriate number of its Class C shares for sale under the
securities laws of such states as the Distributor and the Trust may approve.
Any such qualification may be withheld, terminated or withdrawn by the Trust at
any time in its discretion.  As provided in Section 8(c) hereof, the


                                        7
<PAGE>

expense of qualification and maintenance of qualification shall be borne by the
Trust.  The Distributor shall furnish such information and other material
relating to its affairs and activities as may be required by the Trust in
connection with such qualification.

     (d)  The Trust will furnish, in reasonable quantities upon request by the
Distributor, copies of annual and interim reports of the Fund.

     Section 6.  DUTIES OF THE DISTRIBUTOR.

     (a)  The Distributor shall devote reasonable time and effort to effect
sales of Class C shares of the Fund but shall not be obligated to sell any
specific number of shares.  The services of the Distributor to the Trust
hereunder are not to be deemed exclusive and nothing herein contained shall
prevent the Distributor from entering into like arrangements with other
investment companies so long as the performance of its obligations hereunder is
not impaired thereby.

     (b)  In selling the Class C shares of the Fund, the Distributor shall use
its best efforts in all respects duly to conform with the requirements of all
Federal and state laws relating to the sale of such securities.  Neither the
Distributor nor any selected dealer, as defined in Section 7 hereof, nor any
other person is authorized by the Trust to give any information or to make any
representations, other than those contained in the registration statement or
related prospectus and statement of


                                        8
<PAGE>

additional information and any sales literature specifically approved by the
Trust.

     (c)  The Distributor shall adopt and follow procedures, as approved by the
officers of the Trust, for the confirmation of sales to investors and selected
dealers, the collection of amounts payable by investors and selected dealers on
such sales, and the cancellation of unsettled transactions, as may be necessary
to comply with the requirements of the National Association  of Securities
Dealers, Inc. (the "NASD"), as such requirements may from time to time exist.

     Section 7.  SELECTED DEALER AGREEMENTS.

     (a)  The Distributor shall have the right to enter into selected dealer
agreements with securities dealers of its choice ("selected dealers") for the
sale of Class C shares; provided, that the Trust shall approve the forms of
agreements with dealers.  Class C shares sold to selected dealers shall be for
resale by such dealers only at net asset value determined as set forth in
Section 3(c) hereof.  The form of agreement with selected dealers to be used
during the continuous offering of the shares is attached hereto as Exhibit A.

     (b)  Within the United States, the Distributor shall offer and sell Class C
shares only to such selected dealers that are members in good standing of the
NASD.

     Section 8.  PAYMENT OF EXPENSES.


                                        9
<PAGE>

     (a)  The Trust shall bear all costs and expenses of the Fund, including
fees and disbursements of its counsel and auditors, in connection with the
preparation and filing of any required registration statements and/or
prospectuses and statements of additional information under the Investment
Company Act, the Securities Act, and all amendments and supplements thereto, and
preparing and mailing annual and interim reports and proxy materials to Class C
shareholders (including but not limited to the expense of setting in type any
such registration statements, prospectuses, statements of additional
information, annual or interim reports or proxy materials).

     (b)  The Distributor shall be responsible for any payments made to selected
dealers as reimbursement for their expenses associated with payments of sales
commissions to financial consultants.  In addition, after the prospectuses,
statements of additional information and annual and interim reports have been
prepared and set in type, the Distributor shall bear the costs and expenses of
printing and distributing any copies thereof which are to be used in connection
with the offering of Class C shares to selected dealers or investors pursuant to
this Agreement.  The Distributor shall bear the costs and expenses of preparing,
printing and distributing any other literature used by the Distributor or
furnished by it for use by selected dealers in connection with the offering of
the Class C shares for sale to the public and any expenses of advertising
incurred by the Dis-


                                       10
<PAGE>

tributor in connection with such offering.  It is understood and agreed that so
long as the Fund's Class C Shares Distribution Plan pursuant to Rule 12b-1 under
the Investment Company Act remains in effect, any expenses incurred by the
Distributor hereunder may be paid from amounts recovered by it from the Fund
under such Plan.

     (c)  The Trust shall bear the cost and expenses of qualification of the
Class C shares for sale pursuant to this Agreement and, if necessary or
advisable in connection therewith, of qualifying the Trust as a broker or dealer
in such states of the United States or other jurisdictions as shall be selected
by the Trust and the Distributor pursuant to Section 5(c) hereof and the cost
and expenses payable to each such state for continuing qualification therein
until the Trust decides to discontinue such qualification pursuant to Section
5(c) hereof.

     Section 9.  INDEMNIFICATION.

     (a)  The Trust shall indemnify and hold harmless the Distributor and each
person, if any, who controls the Distributor against any loss, liability, claim,
damage or expense (including the reasonable cost of investigating or defending
any alleged loss, liability, claim, damage or expense and reasonable counsel
fees incurred in connection therewith), as incurred, arising by reason of any
person acquiring any Class C shares, which may be based upon the Securities Act,
or on any other statute or at common law, on the ground that the registration
statement or


                                       11
<PAGE>

related prospectus and statement of additional information relating to the Fund,
as from time to time amended and supplemented, or an annual or interim report to
Class C shareholders of the Fund, includes an untrue statement of a material
fact or omits to state a material fact required to be stated therein or
necessary in order to make the statements therein not misleading, unless such
statement or  omission was made in reliance upon, and in conformity with,
information furnished to the Trust in connection therewith by or on behalf of
the Distributor; provided, however, that in no case (i) is the indemnity of the
Trust in favor of the Distributor and any such controlling persons to be deemed
to protect such Distributor or any such controlling persons thereof against any
liability to the Trust or its security holders to which the Distributor or any
such controlling persons would otherwise be subject by reason of willful
misfeasance, bad faith or gross negligence in the performance of their duties or
by reason of the reckless disregard of their obligations and duties under this
Agreement; or (ii) is the Trust to be liable under its indemnity agreement
contained in this paragraph with respect to any claim made against the
Distributor or any such controlling persons, unless the Distributor or such
controlling persons, as the case may be, shall have notified the Trust in
writing within a reasonable time after the summons or other first legal process
giving information of the nature of the claim shall have been served upon the


                                       12
<PAGE>

Distributor or such controlling persons (or after the Distributor or such
controlling persons shall have received notice of such service on any designated
agent), but failure to notify the Trust of any such claim shall not relieve it
from any liability which it may have to the person against whom such action is
brought otherwise than on account of its indemnity agreement contained in this
paragraph.  The Trust will be entitled to participate at its own expense in the
defense or, if it so elects, to assume the defense of any suit brought to
enforce any such liability, but if the Trust elects to assume the defense, such
defense shall be conducted by counsel chosen by it and satisfactory to the
Distributor or such controlling person or persons, defendant or defendants in
the suit.  In the event the Trust elects to assume the defense of any such suit
and retain such counsel, the Distributor or such controlling person or persons,
defendant or defendants in the suit shall bear the fees and expenses, as
incurred, of any additional counsel retained by them, but in case the Trust does
not elect to assume the defense of any such suit, it will reimburse the
Distributor or such controlling person or persons, defendant or defendants in
the suit, for the reasonable fees and expenses, as incurred, of any counsel
retained by them.  The Trust shall promptly notify the Distributor of the
commencement of any litigation or proceedings against it or any of its officers
or Trustees in connection with the issuance or sale of any of the Class C
shares.


                                       13
<PAGE>

     (b)  The Distributor shall indemnify and hold harmless the Trust and each
of its Trustees and officers and each person, if any, who controls the Trust
against any loss, liability, claim, damage or expense, as incurred, described in
the foregoing indemnity contained in subsection (a) of this Section, but only
with respect to statements or omissions made in reliance upon, and in conformity
with, information furnished to the Trust in writing by or on behalf of the
Distributor for use in connection with the registration statement or related
prospectus and statement of additional information, as from time to time
amended, or the annual or interim reports to shareholders.  In case any action
shall be brought against the Trust or any person so indemnified, in respect of
which indemnity may be sought against the Distributor, the Distributor shall
have the rights and duties given to the Trust, and the Trust and each person so
indemnified shall have the rights and duties given to the Distributor by the
provisions of subsection (a) of this Section 9.

     Section 10.  MERRILL LYNCH MUTUAL FUND ADVISER PROGRAM.  In connection with
the Merrill Lynch Mutual Fund Adviser Program, the Distributor and its
affiliate, Merrill Lynch, Pierce, Fenner & Smith Incorporated, are authorized to
offer and sell shares of the Fund, as agent for the Fund, to participants in
such program.  The terms of this Agreement shall apply to such sales, including
terms as to the offering price of shares, the proceeds to be paid to the Fund,
the duties of the Distributor, the payment of


                                       14
<PAGE>

expenses and indemnification obligations of the Fund and the Distributor.

     Section 11.  DURATION AND TERMINATION OF THIS AGREEMENT.  This Agreement
shall become effective as of the date first above written and shall remain in
force until October __, 1996 and thereafter, but only for so long as such
continuance is specifically approved at least annually by (i) the Trustees or by
the vote of a majority of the outstanding Class C voting securities of the Fund
and (ii) by the vote of a majority of those Trustees who are not parties to this
Agreement or interested persons of any such party cast in person at a meeting
called for the purpose of voting on such approval.

     This Agreement may be terminated at any time, without the payment of any
penalty, by the Trustees or by vote of a majority of the outstanding Class C
voting securities of the Fund, or by the Distributor, on sixty days' written
notice to the other party.  This Agreement shall automatically terminate in the
event of its assignment.

     The terms "vote of a majority of the outstanding voting securities",
"assignment", "affiliated person" and "interested person", when used in this
Agreement, shall have the respective meanings specified in the Investment
Company Act.

     Section 12.  AMENDMENTS OF THIS AGREEMENT.  This Agreement may be amended
by the parties only if such amendment is specifically approved by (i) the
Trustees or by the vote of a majority


                                       15
<PAGE>

of outstanding Class C voting securities of the Fund and (ii) by the vote of a
majority of those Trustees of the Trust who are not parties to this Agreement or
interested persons of any such party cast in person at a meeting called for the
purpose of voting on such approval.

     Section 13.  GOVERNING LAW.  The provisions of this Agreement shall be
construed and interpreted in accordance with the laws of the State of New York
as at the time in effect and the applicable provisions of the Investment Company
Act.  To the extent that the applicable law of the State of New York, or any of
the provisions herein, conflict with the applicable provisions of the Investment
Company Act, the latter shall control.

     Section 14.  PERSONAL LIABILITY.  The Declaration of Trust establishing
Merrill Lynch Multi-State Municipal Series Trust, dated August 2, 1985, a copy
of which, together with all amendments thereto (the "Declaration"), is on file
in the office of the Secretary of the Commonwealth of Massachusetts, provides
that the name "Merrill Lynch Multi-State Municipal Series Trust" refers to the
Trustees under the Declaration collectively as trustees, but not as individuals
or personally; and no Trustee, shareholder, officer, employee or agent of said
Trust shall be held to any personal liability, nor shall resort be had to their
private property for the satisfaction of any obligation or claim or otherwise in
connection with the affairs of said Trust, but the "Trust Property" only shall
be liable.


                                       16
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the day and year first above written.

                         MERRILL LYNCH MULTI-STATE MUNICIPAL
                              SERIES TRUST


                         By
                            ------------------------------------
                              Title:



                         MERRILL LYNCH FUNDS DISTRIBUTOR, INC.


                         By
                             ------------------------------------
                              Title:


                                       17
<PAGE>

                                                                       EXHIBIT A


                    MERRILL LYNCH [STATE] MUNICIPAL BOND FUND
                MERRILL LYNCH MULTI-STATE MUNICIPAL SERIES TRUST

                      CLASS C SHARES OF BENEFICIAL INTEREST

                            SELECTED DEALER AGREEMENT

Gentlemen:

     Merrill Lynch Funds Distributor, Inc. (the "Distributor") has an agreement
with Merrill Lynch Multi-State Municipal Series Trust, a Massachusetts business
trust (the "Trust"), pursuant to which it acts as the distributor for the sale
of Class C shares of beneficial interest, par value $0.10 per share (herein
referred to as the "Class C shares"), of the Trust relating to Merrill Lynch
[State] Municipal Bond Fund (the "Fund") and as such has the right to distribute
Class C shares of the Fund for resale.  The Trust is an open-end investment
company registered under the Investment Company Act of 1940, as amended, and the
Fund's Class C shares being offered to the public are registered under the
Securities Act of 1933, as amended.  You have received a copy of the Class C
Shares Distribution Agreement (the "Distribution Agreement") between ourself and
the Trust and reference is made herein to certain provisions of such
Distribution Agreement.  The terms "Prospectus" and "Statement of Additional
Information" as used herein refer to the prospectus and statement of additional
information, respectively, on file with the Securities and Exchange Commission
which is part of the most recent effective registration statement pursuant to
the Securities Act of 1933, as amended.  We offer to sell to you, as a member of
the Selected Dealers Group, Class C shares of the Fund upon the following terms
and conditions:

     1.  In all sales of these Class C shares to the public, you shall act as
dealer for your own account and in no transaction shall you have any authority
to act as agent for the Trust, for us or for any other member of the Selected
Dealers Group, except in connection with the Merrill Lynch Mutual Fund Adviser
program and such other special programs as we from time to time agree, in which
case you shall have authority to offer and sell shares, as agent for the Trust,
to participants in such program.

     2.  Orders received from you will be accepted through us only at the public
offering price applicable to each order, as set forth in the current Prospectus
and Statement of Additional Information of the Fund.  The procedure relating to
the handling of orders shall be subject to Section 4 hereof and instructions

<PAGE>

which we or the Trust shall forward from time to time to you.  All orders are
subject to acceptance or rejection by the Distributor or the Trust in the sole
discretion of either.  The minimum initial and subsequent purchase requirements
are as set forth in the current Prospectus and Statement of Additional
Information of the Fund.

     3.  You shall not place orders for any of the Class C shares unless you
have already received purchase orders for such Class C shares at the applicable
public offering prices and subject to the terms hereof and of the Distribution
Agreement.  You agree that you will not offer or sell any of the Class C shares
except under circumstances that will result in compliance with the applicable
Federal and state securities laws and that in connection with sales and offers
to sell Class C shares you will furnish to each person to whom any such sale or
offer is made a copy of the Prospectus and, if requested, the Statement of
Additional Information (as then amended or supplemented) and will not furnish to
any person any information relating to the Class C shares of the Fund which is
inconsistent in any respect with the information contained in the Prospectus and
Statement of Additional Information (as then amended or supplemented) or cause
any advertisement to be published in any newspaper or posted in any public place
without our consent and the consent of the Trust.

     4.  As a selected dealer, you are hereby authorized (i) to place orders
directly with the Trust for Class C shares of the Fund to be resold by us to you
subject to the applicable terms and conditions governing the placement of orders
by us set forth in Section 3 of the Distribution Agreement and (ii) to tender
Class C shares directly to the Trust or its agent for redemption subject to the
applicable terms and conditions set forth in Section 4 of the Distribution
Agreement.

     5.  You shall not withhold placing orders received from your customers so
as to profit yourself as a result of such withholding:  E.G., by a change in the
"net asset value" from that used in determining the offering price to your
customers.

     6.  No person is authorized to make any representations concerning Class C
shares of the Fund except those contained in the current Prospectus and
Statement of Additional Information of the Fund and in such printed information
subsequently issued by us or the Trust as information supplemental to such
Prospectus and Statement of Additional Information.  In purchasing Class C
shares through us you shall rely solely on the representations contained in the
Prospectus and Statement of Additional Information and supplemental information
above mentioned.  Any printed information which we furnish you other than the
Fund's Prospectus, Statement of Additional Information, periodic reports and


                                       A-2
<PAGE>

proxy solicitation material is our sole responsibility and not the
responsibility of the Trust, and you agree that the Trust shall have no
liability or responsibility to you in these respects unless expressly assumed in
connection therewith.

    7.  You agree to deliver to each of the purchasers making purchases from you
a copy of the then current Prospectus and, if requested, the Statement of
Additional Information at or prior to the time of offering or sale and you agree
thereafter to deliver to such purchasers copies of the annual and interim
reports and proxy solicitation materials of the Fund.  You further agree to
endeavor to obtain proxies from such purchasers.  Additional copies of the
Prospectus and Statement of Additional Information, annual or interim reports
and proxy solicitation materials of the Fund will be supplied to you in
reasonable quantities upon request.

    8.  We reserve the right in our discretion, without notice, to suspend sales
or withdraw the offering of Class C shares entirely or to certain persons or
entities in a class or classes specified by us.  Each party hereto has the right
to cancel this Agreement upon notice to the other party.

    9.  We shall have full authority to take such action as we may deem
advisable in respect of all matters pertaining to the continuous offering.  We
shall be under no liability to you except for lack of good faith and for
obligations expressly assumed by us herein.  Nothing contained in this paragraph
is intended to operate as, and the provisions of this paragraph shall not in any
way whatsoever constitute, a waiver by you of compliance with any provision of
the Securities Act of 1933, as amended, or of the rules and regulations of the
Securities and Exchange Commission issued thereunder.

    10.  You represent that you are a member of the National Association of
Securities Dealers, Inc. and, with respect to any sales in the United States, we
both hereby agree to abide by the Rules of Fair Practice of such Association.

    11.  Upon application to us, we will inform you as to the states in which we
believe the Class C shares have been qualified for sale under, or are exempt
from the requirements of, the respective securities laws of such states, but we
assume no responsibility or obligation as to your right to sell Class C shares
in any jurisdiction.  We will file with the Department of State in New York a
Further State Notice with respect to the Class C shares, if necessary.


                                       A-3
<PAGE>

    12.  All communications to us should be sent to the address below.  Any
notice to you shall be duly given if mailed or telegraphed to you at the address
specified by you below.

    13.  Your first order placed pursuant to this Agreement for the purchase of
Class C shares of the Fund will represent your acceptance of this Agreement.

                    MERRILL LYNCH FUNDS DISTRIBUTOR, INC.


                    By
                       ----------------------------------
                            (Authorized Signature)

Please return one signed copy
  of this Agreement to:

     MERRILL LYNCH FUNDS DISTRIBUTOR, INC.
     Box 9011
     Princeton, New Jersey  08543-9011

     Accepted:

          Firm Name: Merrill Lynch, Pierce, Fenner & Smith Inc.
                     --------------------------------------------

          By:
              ---------------------------------------------------

          Address: 800 Scudders Mill Road
                   ----------------------------------------------

                   Plainsboro, New Jersey 08536
          -------------------------------------------------------

          Date:            , 1994
                -------------------------------------------------


                                       A-4

<PAGE>

                                                                    Exhibit 6(d)

                                 CLASS D SHARES

                             DISTRIBUTION AGREEMENT


     AGREEMENT made as of the ____ day of October, 1994, between MERRILL LYNCH
MULTI-STATE MUNICIPAL SERIES TRUST, a Massachusetts business trust (the
"Trust"), and MERRILL LYNCH FUNDS DISTRIBUTOR, INC., a Delaware corporation (the
"Distributor").


                              W I T N E S S E T H :


     WHEREAS, the Trust is registered under the Investment Company Act of 1940,
as amended (the "Investment Company Act"), as an open-end investment company,
and it is affirmatively in the interest of the Trust to offer its shares for
sale continuously;
and

     WHEREAS, the Trustees of the Trust (the "Trustees") are authorized to
establish separate series (the "Series") relating to separate portfolios of
securities, each of which will offer separate classes of shares of beneficial
interest, par value $0.10 per share (collectively referred to as "shares") to
selected groups of purchasers; and

     WHEREAS, the Trustees have established and designated the Merrill Lynch
[State] Municipal Bond Fund (the "Fund") as a series of the Trust; and

     WHEREAS, the Distributor is a securities firm engaged in the business of
selling shares of investment companies either directly to purchasers or through
other securities dealers; and

<PAGE>

     WHEREAS, the Trust and the Distributor wish to enter into an agreement with
each other with respect to the continuous offering of the Class D shares of
beneficial interest in the Fund.

     NOW, THEREFORE, the parties agree as follows:

     Section 1.  APPOINTMENT OF THE DISTRIBUTOR.  The Trust hereby appoints the
Distributor as the principal underwriter and distributor of the Trust to sell
Class D shares of beneficial interest in the Fund (sometimes herein referred to
as "Class D shares") to the public and hereby agrees during the term of this
Agreement to sell Class D shares of the Fund to the Distributor upon the terms
and conditions herein set forth.

     Section 2.  EXCLUSIVE NATURE OF DUTIES.  The Distributor shall be the
exclusive representative of the Trust to act as principal underwriter and
distributor of the Class D shares of the Fund, except that:

     (a)  The Trust may, upon written notice to the Distributor, from time to
time designate other principal underwriters and distributors of Class D shares
with respect to areas other than the United States as to which the Distributor
may have expressly waived in writing its right to act as such.  If such
designation is deemed exclusive, the right of the Distributor under this
Agreement to sell Class D shares in the areas so designated shall terminate, but
this Agreement shall remain otherwise in full effect until terminated in
accordance with the other provisions hereof.


                                        2
<PAGE>

     (b)  The exclusive right granted to the Distributor to purchase Class D
shares from the Trust shall not apply to Class D shares issued in connection
with the merger or consolidation of any other investment company or personal
holding company with the Trust or the acquisition by purchase or otherwise of
all (or substantially all) the assets or the outstanding Class D shares of any
such company by the Trust.

     (c)  Such exclusive right also shall not apply to Class D shares issued
pursuant to reinvestment of dividends or capital gains distributions.

     (d)  Such exclusive right also shall not apply to Class D shares issued
pursuant to any conversion, exchange or reinstatement privilege afforded
redeeming shareholders or to any other Class D shares as shall be agreed between
the Trust and the Distributor from time to time.

     Section 3.  PURCHASE OF CLASS D SHARES FROM THE TRUST.

     (a)  The Distributor shall have the right to buy from the Trust the Class D
shares needed, but not more than the Class D shares needed (except for clerical
errors in transmission) to fill unconditional orders for Class D shares of the
Fund placed with the Distributor by eligible investors or securities dealers.
Investors eligible to purchase Class D shares shall be those persons so
identified in the currently effective prospectus and statement of additional
information of the Fund (the "prospectus" and "statement of additional
information", respectively) under the Securities Act of 1933, as amended (the
"Securities Act"),


                                        3
<PAGE>

relating to such Class D shares.  The price which the Distributor shall pay for
the Class D shares so purchased from the Trust shall be the net asset value,
determined as set forth in Section 3(d) hereof, used in determining the public
offering price on which such orders were based.

     (b)  The Class D shares are to be resold by the Distributor to investors at
the public offering price, as set forth in Section 3(c) hereof, or to securities
dealers having agreements  with the Distributor upon the terms and conditions
set forth in Section 7 hereof.

     (c)  The public offering price(s) of the Class D shares, I.E., the price
per share at which the Distributor or selected dealers may sell Class D shares
to the public, shall be the public offering price as set forth in the prospectus
and statement of additional information relating to such Class D shares, but not
to exceed the net asset value at which the Distributor is to purchase the Class
D shares, plus a sales charge not to exceed 4.00% of the public offering price
(4.17% of the net amount invested), subject to reductions for volume purchases.
Class D shares may be sold to certain Trustees, officers and employees of the
Trust, directors and employees of Merrill Lynch & Co., Inc. and its
subsidiaries, and to certain other persons described in the prospectus and
statement of additional information, without a sales charge or at a reduced
sales charge, upon terms and conditions set forth in the prospectus and
statement of additional information.  If the


                                        4
<PAGE>

public offering price does not equal an even cent, the public offering price may
be adjusted to the nearest cent.  All payments to the Trust hereunder shall be
made in the manner set forth in Section 3(f).

     (d)  The net asset value of Class D shares shall be determined by the Trust
or any agent of the Trust in accordance with the method set forth in the
prospectus and statement of additional information of the Fund and guidelines
established by the Trustees.

     (e)  The Trust shall have the right to suspend the sale of its Class D
shares at times when redemption is suspended pursuant to the conditions set
forth in Section 4(b) hereof.  The Trust shall also have the right to suspend
the sale of its Class D shares if trading on the New York Stock Exchange shall
have been suspended, if a banking moratorium shall have been declared by Federal
or New York authorities, or if there shall have been some other event, which, in
the judgment of the Trust, makes it impracticable or inadvisable to sell the
Class D shares.

     (f)  The Trust, or any agent of the Trust designated in writing by the
Trust, shall be promptly advised of all purchase orders for Class D shares
received by the Distributor.  Any order may be rejected by the Trust; provided,
however, that the Trust will not arbitrarily or without reasonable cause refuse
to accept or confirm orders for the purchase of Class D shares.  The Trust (or
its agent) will confirm orders upon their receipt, will make appropriate book
entries and, upon receipt by the Trust (or its


                                        5
<PAGE>

agent) of payment therefor, will deliver deposit receipts or certificates for
such Class D shares pursuant to the instructions of the Distributor.  Payment
shall be made to the Trust in New York Clearing House funds.  The Distributor
agrees to cause such payment and such instructions to be delivered promptly to
the Trust (or its agent).

     Section 4.  REPURCHASE OR REDEMPTION OF CLASS D SHARES BY THE TRUST.

     (a)  Any of the outstanding Class D shares may be tendered for redemption
at any time, and the Trust agrees to repurchase or redeem the Class D shares so
tendered in accordance with its obligations as set forth in Article VIII of its
Declaration of Trust, as amended from time to time, and in accordance with the
applicable provisions set forth in the prospectus and statement of additional
information.  The price to be paid to redeem or repurchase the Class D shares
shall be equal to the net asset value calculated in accordance with the
provisions of Section 3(d) hereof, less any contingent deferred sales charge
("CDSC"), redemption fee or other charge(s), if any, set forth in the prospectus
and statement of additional information of the Fund.  All payments by the Trust
hereunder shall be made in the manner set forth below.  The redemption or
repurchase by the Trust of any of the Class D shares purchased by or through the
Distributor will not affect the sales charge secured by the Distributor or any
selected dealer in the course of the original sale, except that if any Class D
shares are tendered for redemption or repur-


                                        6
<PAGE>

chase within seven business days after the date of the confirmation of the
original purchase, the right to the sales charge shall be forfeited by the
Distributor and the selected dealer which sold such Class D shares.

     The Trust shall pay the total amount of the redemption price as defined in
the above paragraph pursuant to the instructions of the Distributor in New York
Clearing House funds on or before the seventh business day subsequent to its
having received the notice of redemption in proper form.  The proceeds of any
redemption of shares shall be paid by the Trust as follows:  (i) any applicable
CDSC shall be paid to the Distributor, and (ii) the balance shall be paid to or
for the account of the shareholder, in each case in accordance with the
applicable provisions of the prospectus and statement of additional information.

     (b)  Redemption of Class D shares or payment may be suspended at times when
the New York Stock Exchange is closed, when trading on said Exchange is
suspended, when trading on said Exchange is restricted, when an emergency exists
as a result of which disposal by the Trust of securities owned by it is not
reasonably practicable or it is not reasonably practicable for the Trust fairly
to determine the value of the net assets of the Fund, or during any other period
when the Securities and Exchange Commission, by order, so permits.

     Section 5.  DUTIES OF THE TRUST.

     (a)  The Trust shall furnish to the Distributor copies of all information,
financial statements and other papers which the


                                        7
<PAGE>

Distributor may reasonably request for use in connection with the distribution
of Class D shares of the Fund, and this shall include, upon request by the
Distributor, one certified copy of all  financial statements prepared for the
Trust by independent public accountants.  The Trust shall make available to the
Distributor such number of copies of the prospectus and statement of additional
information relating to the Fund as the Distributor shall reasonably request.

     (b)  The Trust shall take, from time to time, but subject to any necessary
approval of the Class D shareholders, all necessary action to fix the number of
authorized Class D shares and such steps as may be necessary to register the
same under the Securities Act, to the end that there will be available for sale
such number of Class D shares as the Distributor may reasonably be expected to
sell.

     (c)  The Trust shall use its best efforts to qualify and maintain the
qualification of an appropriate number of its Class D shares for sale under
the securities laws of such states as the Distributor and the Trust may
approve.  Any such qualification may be withheld, terminated or withdrawn by
the Trust at any time in its discretion.  As provided in Section 8(c) hereof,
the expense of qualification and maintenance of qualification shall be borne
by the Trust.  The Distributor shall furnish such information and other
material relating to its affairs and activities as may be required by the Trust
in connection with such qualification.


                                        8
<PAGE>

     (d)  The Trust will furnish, in reasonable quantities upon request by the
Distributor, copies of annual and interim reports of the Fund.

     Section 6.  DUTIES OF THE DISTRIBUTOR.

     (a)  The Distributor shall devote reasonable time and effort to effect
sales of Class D shares of the Fund but shall not be obligated to sell any
specific number of Class D shares.  The services of the Distributor to the Trust
hereunder are not to be deemed exclusive and nothing herein contained shall
prevent the Distributor from entering into like arrangements with other
investment companies so long as the performance of its obligations hereunder is
not impaired thereby.

     (b)  In selling the Class D shares of the Fund, the Distributor shall use
its best efforts in all respects duly to conform with the requirements of all
Federal and state laws relating to the sale of such securities.  Neither the
Distributor nor any selected dealer, as defined in Section 7 hereof, nor any
other person is authorized by the Trust to give any information or to make any
representations, other than those contained in the registration statement or
related prospectus and statement of additional information and any sales
literature specifically approved by the Trust.

     (c)  The Distributor shall adopt and follow procedures, as approved by the
officers of the Trust, for the confirmation of sales to investors and selected
dealers, the collection of amounts payable by investors and selected dealers on
such sales,


                                        9
<PAGE>

and the cancellation of unsettled transactions, as may be necessary to comply
with the requirements of the National Association of Securities Dealers, Inc.
(the "NASD"), as such requirements may from time to time exist.

     Section 7.  SELECTED DEALERS AGREEMENTS.

     (a)  The Distributor shall have the right to enter into selected dealers
agreements with securities dealers of its choice ("selected dealers") for the
sale of Class D shares and fix therein the portion of the sales charge which may
be allocated to the selected dealers; provided that the Trust shall approve the
forms of agreements with dealers and the dealer compensation set forth therein.
Class D shares sold to selected dealers shall be for resale by such dealers only
at the public offering price(s) set forth in the prospectus and statement of
additional information.  The form of agreement with selected dealers to be used
during the continuous offering of the Class D shares is attached hereto as
Exhibit A.

     (b)  Within the United States, the Distributor shall offer and sell Class D
shares only to such selected dealers as are members in good standing of the
NASD.

     Section 8.  PAYMENT OF EXPENSES.

     (a)  The Trust shall bear all costs and expenses of the Fund, including
fees and disbursements of its counsel and auditors, in connection with the
preparation and filing of any required registration statements and/or
prospectuses and statements of additional information under the Investment
Company


                                       10
<PAGE>

Act, the Securities Act, and all amendments and supplements thereto, and
preparing and mailing annual and interim reports and proxy materials to Class D
shareholders (including but not limited to the expense of setting in type any
such registration statements, prospectuses, statements of additional
information, annual or interim reports or proxy materials).

     (b)  The Distributor shall be responsible for any payments made to selected
dealers as reimbursement for their expenses associated with payments of sales
commissions to financial consultants.  In addition, after the prospectuses,
statements of additional information and annual and interim reports have been
prepared and set in type, the Distributor shall bear the costs and expenses of
printing and distributing any copies thereof which are to be used in connection
with the offering of Class D shares to selected dealers or investors pursuant to
this Agreement.  The Distributor shall bear the costs and expenses of preparing,
printing and distributing any other literature used by the Distributor or
furnished by it for use by selected dealers in connection with the offering of
the Class D shares for sale to the public and any expenses of advertising
incurred by the Distributor in connection with such offering.  It is understood
and agreed that so long as the Fund's Class D Shares Distribution Plan pursuant
to Rule 12b-1 under the Investment Company Act remains in effect, any expenses
incurred by the Distributor hereunder in connection with account maintenance
activities may


                                       11
<PAGE>

be paid from amounts recovered by it from the Fund under such plan.

     (c)  The Trust shall bear the cost and expenses of qualification of the
Class D shares for sale pursuant to this Agreement and, if necessary or
advisable in connection therewith, of qualifying the Trust as a broker or dealer
in such states of the United States or other jurisdictions as shall be selected
by the Trust and the Distributor pursuant to Section 5(c) hereof and the cost
and expenses payable to each such state for continuing qualification therein
until the Trust decides to discontinue such qualification pursuant to Section
5(c) hereof.

     Section 9.  INDEMNIFICATION.

     (a)  The Trust shall indemnify and hold harmless the Distributor and each
person, if any, who controls the Distributor against any loss, liability, claim,
damage or expense (including the reasonable cost of investigating or defending
any alleged loss, liability, claim, damage or expense and reasonable counsel
fees incurred in connection therewith), as incurred, arising by reason of any
person acquiring any Class D shares, which may be based upon the Securities Act,
or on any other statute or at common law, on the ground that the registration
statement or related prospectus and statement of additional information relating
to the Fund, as from time to time amended and supplemented, or an annual or
interim report to shareholders of the Fund, includes an untrue statement of a
material fact or omits to state a material fact required to be stated therein or
necessary in order to make


                                       12
<PAGE>

the statements therein not misleading, unless such statement or omission was
made in reliance upon, and in conformity with, information furnished to the
Trust in connection therewith by or on behalf of the Distributor; provided,
however, that in no case (i) is the indemnity of the Trust in favor of the
Distributor and any such controlling persons to be deemed to protect such
Distributor or any such controlling persons thereof against any liability to the
Trust or its security holders to which the Distributor or any such controlling
persons would otherwise be subject by reason of willful misfeasance, bad faith
or gross negligence in the performance of their duties or by reason of the
reckless disregard of their obligations and duties under this Agreement; or (ii)
is the Trust to be liable under its indemnity agreement contained in this
paragraph with respect to any claim made against the Distributor or any such
controlling persons, unless the Distributor or such controlling persons, as the
case may be, shall have notified the Trust in writing within a reasonable time
after the summons or other first legal process giving information of the nature
of the claim shall have been served upon the Distributor or such controlling
persons (or after the Distributor or such controlling persons shall have
received notice of such service on any designated agent), but failure to notify
the Trust of any such claim shall not relieve it from any liability which it may
have to the person against whom such action is brought otherwise than on account
of its indemnity agreement contained in this paragraph.  The Trust will be


                                       13
<PAGE>

entitled to participate at its own expense in the defense or, if it so elects,
to assume the defense of any suit brought to enforce any such liability, but if
the Trust elects to assume the defense, such defense shall be conducted by
counsel chosen by it and satisfactory to the Distributor or such controlling
person or persons, defendant or defendants in the suit.  In the event the Trust
elects to assume the defense of any such suit and retain such counsel, the
Distributor or such controlling person or persons, defendant or defendants in
the suit shall bear the fees and expenses of any additional counsel retained by
them, but in case the Trust does not elect to assume the defense of any such
suit, it will reimburse the Distributor or such controlling person or persons,
defendant or defendants in the suit, for the reasonable fees and expenses of any
counsel retained by them.  The Trust shall promptly notify the Distributor of
the commencement of any litigation or proceedings against it or any of its
officers or Trustees in connection with the issuance or sale of any of the Class
D shares.

     (b)  The Distributor shall indemnify and hold harmless the Trust and each
of its Trustees and officers and each person, if any, who controls the Trust
against any loss, liability, claim, damage or expense described in the foregoing
indemnity contained in subsection (a) of this Section, but only with respect to
statements or omissions made in reliance upon, and in conformity with,
information furnished to the Trust in writing by or on behalf of the Distributor
for use in connection with the


                                       14
<PAGE>

registration statement or related prospectus and statement of additional
information, as from time to time amended, or the annual or interim reports to
Class D shareholders.  In case any action shall be brought against the Trust or
any person so indemnified, in respect of which indemnity may be sought against
the Distributor, the Distributor shall have the rights and duties given to the
Trust, and the Trust and each person so indemnified shall have the rights and
duties given to the Distributor by the provisions of subsection (a) of this
Section 9.

     Section 10.  MERRILL LYNCH MUTUAL FUND ADVISER PROGRAM.  In connection with
the Merrill Lynch Mutual Fund Adviser Program, the Distributor and its
affiliate, Merrill Lynch, Pierce, Fenner & Smith Incorporated, are authorized to
offer and sell shares of the Fund, as agent for the Fund, to participants in
such program.  The terms of this Agreement shall apply to such sales, including
terms as to the offering price of shares, the proceeds to be paid to the Fund,
the duties of the Distributor, the payment of expenses and indemnification
obligations of the Fund and the Distributor.

     Section 11.  DURATION AND TERMINATION OF THIS AGREEMENT.  This Agreement
shall become effective as of the date first above written and shall remain in
force until October __, 1996 and thereafter, but only for so long as such
continuance is specifically approved at least annually by (i) the Trustees or by
the vote of a majority of the outstanding Class D voting securities of the Fund
and (ii) by the vote of a majority of


                                       15
<PAGE>

those Trustees who are not parties to this Agreement or interested persons of
any such party cast in person at a meeting called for the purpose of voting on
such approval.

     This Agreement may be terminated at any time, without the payment of any
penalty, by the Trustees or by vote of a majority of the outstanding Class D
voting securities of the Fund, or by the Distributor, on sixty days' written
notice to the other party.  This  Agreement shall automatically terminate in the
event of its assignment.

     The terms "vote of a majority of the outstanding voting securities",
"assignment", "affiliated person" and "interested person", when used in this
Agreement, shall have the respective meanings specified in the Investment
Company Act.

     Section 12.  AMENDMENTS OF THIS AGREEMENT.  This Agreement may be amended
by the parties only if such amendment is specifically approved by (i) the
Trustees or by the vote of a majority of outstanding Class C voting securities
of the Fund and (ii) by the vote of a majority of those Trustees of the Trust
who are not parties to this Agreement or interested persons of any such party
cast in person at a meeting called for the purpose of voting on such approval.

     Section 13.  GOVERNING LAW.  The provisions of this Agreement shall be
construed and interpreted in accordance with the laws of the State of New York
as at the time in effect and the applicable provisions of the Investment Company
Act.  To the extent that the applicable law of the State of New York, or any


                                       16
<PAGE>

of the provisions herein, conflict with the applicable provisions of the
Investment Company Act, the latter shall control.

     Section 14.  PERSONAL LIABILITY.  The Declaration of Trust establishing
Merrill Lynch Multi-State Municipal Series Trust, dated August 2, 1985, a copy
of which, together with all amendments thereto (the "Declaration"), is on file
in the office of the Secretary of the Commonwealth of Massachusetts, provides
that the name "Merrill Lynch Multi-State Municipal Series Trust" refers to the
Trustees under the Declaration collectively as trustees, but not as individuals
or personally; and no Trustee, shareholder, officer, employee or agent of said
Trust shall be held to any personal liability, nor shall resort be had to their
private property for the satisfaction of any obligation or claim or otherwise in
connection with the affairs of said Trust, but the "Trust Property" only shall
be liable.

     IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the day and year first above written.


               MERRILL LYNCH MULTI-STATE MUNICIPAL SERIES TRUST



               By
                 -------------------------------------
                    Title:


               MERRILL LYNCH FUNDS DISTRIBUTOR, INC.


               By
                 -------------------------------------
                    Title:


                                       17
<PAGE>

                                                                       EXHIBIT A


                    MERRILL LYNCH [STATE] MUNICIPAL BOND FUND
                MERRILL LYNCH MULTI-STATE MUNICIPAL SERIES TRUST

                     CLASS D SHARES OF BENEFICIAL INTEREST

                           SELECTED DEALERS AGREEMENT


Gentlemen:

     Merrill Lynch Funds Distributor, Inc. (the "Distributor") has an agreement
with MERRILL LYNCH MULTI-STATE MUNICIPAL SERIES TRUST, a Massachusetts business
trust (the "Trust"), pursuant to which it acts as the distributor for the sale
of Class D shares of beneficial interest, par value $0.10 per share (herein
referred to as "Class D shares"), of the Trust relating to Merrill Lynch [State]
Municipal Bond Fund (the "Fund"), and as such has the right to distribute Class
D shares of the Fund for resale.  The Trust is an open-end investment company
registered under the Investment Company Act of 1940, as amended, and the Fund's
Class D shares being offered to the public are registered under the Securities
Act of 1933, as amended.  You have received a copy of the Class D Shares
Distribution Agreement (the "Distribution Agreement") between ourself and the
Trust and reference is made herein to certain provisions of such Distribution
Agreement.  The terms "Prospectus" and "Statement of Additional Information"
used herein refer to the prospectus and statement of additional information,
respectively, on file with the Securities and Exchange Commission which is part
of the most recent effective registration statement pursuant to the Securities
Act of 1933, as amended.  We offer to sell to you, as a member of the Selected
Dealers Group, Class D shares of the Fund upon the following terms and
conditions:

     1.   In all sales of these Class D shares to the public, you shall act as
dealer for your own account and in no transaction shall you have any authority
to act as agent for the Trust, for us or for any other member of the Selected
Dealers Group, except in connection with the Merrill Lynch Mutual Fund Adviser
program and such other special programs as we from time to time agree, in which
case you shall have authority to offer and sell shares, as agent for the Trust,
to participants in such program.

     2.   Orders received from you will be accepted through us only at the
public offering price applicable to each order, as set forth in the current
Prospectus and Statement of Additional Information of the Fund.  The procedure
relating to the handling


                                       A-1
<PAGE>

of orders shall be subject to Section 5 hereof and instructions which we or the
Trust shall forward from time to time to you.  All orders are subject to
acceptance or rejection by the Distributor or the Trust in the sole discretion
of either.  The minimum initial and subsequent purchase requirements are as set
forth in the current Prospectus and Statement of Additional Information of the
Fund.

     3.   The sales charges for sales to the public, computed as percentages of
the public offering price and the amount invested, and the related discount to
Selected Dealers are as follows:


<TABLE>
<CAPTION>
                                                            Discount to
                                          Sales Charge       Selected
                          Sales Charge   as Percentage*     Dealers as
                         as Percentage     of the Net       Percentage
                             of the          Amount           of the
Amount of Purchase       Offering Price     Invested      Offering Price
- ------------------       --------------  -------------    --------------

<S>                      <C>             <C>              <C>
Less than
$25,000...............        4.00%            4.17%            3.75%

$25,000 but less
 than $50,000.........        3.75%            3.90%            3.50%

$50,000 but less
 than $100,000........        3.25%            3.36%            3.00%

$100,000 but less
 than $250,000........        2.50%            2.56%            2.25%

$250,000 but less
 than $1,000,000......        1.50%            1.52%            1.25%


$1,000,000 and                0.00%            0.00%            0.00%
over**................

<FN>
___________________

*  Rounded to the nearest one-hundredth percent.
** Initial sales charges will be waived for certain classes of offerees as set
forth in the current Prospectus and Statement of Additional Information of the
Fund.  Such purchase may be subject to a contingent deferred sales charge as set
forth in the current Prospectus and Statement of Additional Information.
</TABLE>

     The term "purchase" refers to a single purchase by an individual, or to
concurrent purchases, which in the aggregate are at least equal to the
prescribed amounts, by an individual, his


                                       A-2
<PAGE>

spouse and their children under the age of 21 years purchasing Class D shares
for his or their own account and to single purchases by a trustee or other
fiduciary purchasing Class D shares for a single trust estate or single
fiduciary account although more than one beneficiary is involved.  The term
"purchase" also includes purchases by any "company" as that term is defined in
the Investment Company Act of 1940, as amended, but does not include purchases
by any such company which has not been in existence for at least six months or
which has no purpose other than the purchase of Class D shares of the Fund or
Class D shares of other registered investment companies at a discount; provided,
however, that it shall not include purchases by any group of individuals whose
sole organizational nexus is that the participants therein are credit
cardholders of a company, policyholders of an insurance company, customers of
either a bank or broker-dealer or clients of an investment adviser.

     The reduced sales charges are applicable through a right of accumulation
under which eligible investors are permitted to purchase Class D shares of the
Fund at the offering price applicable to the total of (a) the dollar amount then
being purchased plus (b) an amount equal to the then current net asset value or
cost, whichever is higher, of the purchaser's combined holdings of Class A,
Class B, Class C and Class D shares of the Fund and of any other investment
company with an initial sales charge for which the Distributor acts as the
distributor.  For any such right of accumulation to be made available, the
Distributor must be provided at the time of purchase, by the purchaser or you,
with sufficient information to permit confirmation of qualification, and
acceptance of the purchase order is subject to such confirmation.

     The reduced sales charges are applicable to purchases aggregating $25,000
or more of Class A shares or of Class D shares of any other investment company
with an initial sales charge for which the Distributor acts as the distributor
made through you within a thirteen-month period starting with the first purchase
pursuant to a Letter of Intention in the form provided in the Prospectus.  A
purchase not originally made pursuant to a Letter of Intention may be included
under a subsequent letter executed within 90 days of such purchase if the
Distributor is informed in writing of this intent within such 90-day period.  If
the intended amount of shares is not purchased within the thirteen-month period,
an appropriate price adjustment will be made pursuant to the terms of the Letter
of Intention.

     You agree to advise us promptly at our request as to amounts of any sales
made by you to the public qualifying for reduced sales charges.  Further
information as to the reduced sales charges pursuant to the right of
accumulation or a Letter of


                                       A-3
<PAGE>

Intention is set forth in the Prospectus and Statement of Additional
Information.

     4.   You shall not place orders for any of the Class D shares unless you
have already received purchase orders for such Class D shares at the applicable
public offering prices and subject to the terms hereof and of the Distribution
Agreement.  You agree that you will not offer or sell any of the Class D shares
except under circumstances that will result in compliance with the applicable
Federal and state securities laws and that in connection with sales and offers
to sell Class D shares you will furnish to each person to whom any such sale or
offer is made a copy of the Prospectus and, if requested, the Statement of
Additional Information (as then amended or supplemented) and will not furnish to
any person any information relating to the Class D shares of the Fund which is
inconsistent in any respect with the information contained in the Prospectus and
Statement of Additional Information  (as then amended or supplemented) or cause
any advertisement to be published in any newspaper or posted in any public place
without our consent and the consent of the Trust.

     5.   As a selected dealer, you are hereby authorized (i) to place orders
directly with the Trust for Class D shares of the Fund to be resold by us to you
subject to the applicable terms and conditions governing the placement of orders
by us set forth in Section 3 of the Distribution Agreement and subject to the
compensation provisions of Section 3 hereof and (ii) to tender Class D shares
directly to the Trust or its agent for redemption subject to the applicable
terms and conditions set forth in Section 4 of the Distribution Agreement.

     6.   You shall not withhold placing orders received from your customers so
as to profit yourself as a result of such withholding:  E.G., by a change in the
"net asset value" from that used in determining the offering price to your
customers.

     7.   If any Class D shares sold to you under the terms of this Agreement
are repurchased by the Trust or by us for the account of the Trust or are
tendered for redemption within seven business days after the date of the
confirmation of the original purchase by you, it is agreed that you shall
forfeit your right to, and refund to us, any discount received by you on such
Class D shares.

     8.  No person is authorized to make any representations concerning Class D
shares of the Fund except those contained in the current Prospectus and
Statement of Additional Information of the Fund and in such printed information
subsequently issued by us or the Trust as information supplemental to such
Prospectus and


                                       A-4
<PAGE>

Statement of Additional Information.  In purchasing Class D shares through us
you shall rely solely on the representations contained in the Prospectus and
Statement of Additional Information and supplemental information above
mentioned.  Any printed information which we furnish you other than the Fund's
Prospectus, Statement of Additional Information, periodic reports and proxy
solicitation material is our sole responsibility and not the responsibility of
the Trust, and you agree that the Trust shall have no liability or
responsibility to you in these respects unless expressly assumed in connection
therewith.

     9.   You agree to deliver to each of the purchasers making purchases from
you a copy of the then current Prospectus and, if requested, the Statement of
Additional Information at or prior to the time of offering or sale and you agree
thereafter to deliver to such purchasers copies of the annual and interim
reports and proxy solicitation materials of the Fund.  You further agree to
endeavor to obtain proxies from such purchasers.  Additional copies of the
Prospectus and Statement of Additional Information, annual or interim reports
and proxy solicitation materials of the Fund will be supplied to you in
reasonable quantities upon request.

     10.  We reserve the right in our discretion, without notice, to suspend
sales or withdraw the offering of Class D shares entirely or to certain persons
or entities in a class or classes specified by us.  Each party hereto has the
right to cancel this agreement upon notice to the other party.

     11.  We shall have full authority to take such action as we may deem
advisable in respect of all matters pertaining to the continuous offering.  We
shall be under no liability to you except for lack of good faith and for
obligations expressly assumed by us herein.  Nothing contained in this paragraph
is intended to operate as, and the provisions of this paragraph shall not in any
way whatsoever constitute, a waiver by you of compliance with any provision of
the Securities Act of 1933, as amended, or of the rules and regulations of the
Securities and Exchange Commission issued thereunder.

     12.  You represent that you are a member of the National Association of
Securities Dealers, Inc. and, with respect to any sales in the United States, we
both hereby agree to abide by the Rules of Fair Practice of such Association.

     13.  Upon application to us, we will inform you as to the states in which
we believe the Class D shares have been qualified for sale under, or are exempt
from the requirements of, the respective securities laws of such states, but we
assume no responsibility or obligation as to your right to sell Class D


                                       A-5
<PAGE>

shares in any jurisdiction.  We will file with the Department of State in New
York a Further State Notice with respect to the Class D shares, if necessary.

     14.  All communications to us should be sent to the address below.  Any
notice to you shall be duly given if mailed or telegraphed to you at the address
specified by you below.

     15.  Your first order placed pursuant to this Agreement for the purchase of
Class D shares of the Fund will represent your acceptance of this Agreement.

                         MERRILL LYNCH FUNDS DISTRIBUTOR, INC.


                         By
                            ----------------------------------
                              (Authorized Signature)

Please return one signed copy
     of this agreement to:

     MERRILL LYNCH FUNDS DISTRIBUTOR, INC.
     Box 9011
     Princeton, New Jersey 08543-9011

     Accepted:

          Firm Name: Merrill Lynch, Pierce, Fenner & Smith Inc.
                    --------------------------------------------

          By:
             --------------------------------------------

          Address:  800 Scudders Mill Road
                  -------------------------------------

                    Plainsboro, New Jersey 08536
          ----------------------------------------------

          Date:            , 1994
               ----------------------------------------------


                                       A-6

<PAGE>
                                                                      EXHIBIT 11
   
INDEPENDENT AUDITORS' CONSENT
    

   
MERRILL LYNCH ARIZONA MUNICIPAL BOND FUND OF
MERRILL LYNCH MULTI-STATE MUNICIPAL SERIES TRUST:
    

   
We  consent  to  the  use  in Post-Effective  Amendment  No.  4  to Registration
Statement No. 33-41311  of our  report dated August  29, 1994  appearing in  the
Statement  of  Additional  Information, which  is  a part  of  such Registration
Statement, and to the reference to  us under the caption "Financial  Highlights"
appearing  in  the  Prospectus,  which  also  is  a  part  of  such Registration
Statement.
    

   
DELOITTE & TOUCHE LLP
Princeton, New Jersey
    
   
October 12, 1994
    

<PAGE>

                                                                   Exhibit 15(c)

                            CLASS C DISTRIBUTION PLAN

                                       OF

                    MERRILL LYNCH [STATE] MUNICIPAL BOND FUND
                MERRILL LYNCH MULTI-STATE MUNICIPAL SERIES TRUST

                             PURSUANT TO RULE 12b-1

     DISTRIBUTION PLAN made as of the      day of October, 1994, by and between
Merrill Lynch Multi-State Municipal Series Trust, a Massachusetts business trust
(the "Trust"), and Merrill Lynch Funds Distributor, Inc., a Delaware corporation
("MLFD").

                              W I T N E S S E T H:

     WHEREAS, the Trust is engaged in business as an open-end investment company
registered under the Investment Company Act of 1940, as amended (the "Investment
Company Act"); and

     WHEREAS, the Trust is authorized to establish separate ("Series") each of
which will offer separate classes of shares of beneficial interest par value
$0.10 per share (the "Shares") to selected groups of purchasers; and

     WHEREAS, MLFD is a securities firm engaged in the business of selling
shares of investment companies either directly to purchasers or through other
securities dealers; and

     WHEREAS, the Trust proposes to enter into a Class C Shares Distribution
Agreement with MLFD, pursuant to which MLFD will act as the exclusive
distributor and representative of the Trust in the offer and sale of Class C
shares of beneficial interest, par value $0.10 per share (the "Class C shares"),
of the Merrill Lynch [State] Municipal Bond Fund (the "Fund") series of the
Trust to the public; and

     WHEREAS, the Trust desires to adopt this Class C Distribution Plan (the
"Plan") pursuant to Rule 12b-1 under the Investment Company Act, pursuant to
which the Trust will pay an account maintenance fee and a distribution fee to
MLFD with respect to the Fund's Class C shares; and

     WHEREAS, the Trustees of the Trust have determined that there is a
reasonable likelihood that adoption of the Plan will benefit the Fund and its
shareholders.

     NOW, THEREFORE, the Trust hereby adopts, and MLFD hereby agrees to the
terms of, the Plan in accordance with Rule 12b-1


<PAGE>

under the Investment Company Act on the following terms and conditions:

     1.  The Trust shall pay MLFD an account maintenance fee under the Plan at
the end of each month at the annual rate of 0.25% of average daily net assets of
the Fund relating to Class C shares to compensate MLFD and securities firms with
which MLFD enters into related agreements pursuant to Paragraph 3 hereof ("Sub-
Agreements") for providing account maintenance activities with respect to Class
C shareholders of the Fund.  Expenditures under the Plan may consist of payments
to financial consultants for maintaining accounts in connection with Class C
shares of the Fund and payment of expenses incurred in connection with such
account maintenance activities including the costs of making services available
to shareholders including assistance in connection with inquiries related to
shareholder accounts.

     2.  The Trust shall pay MLFD a distribution fee under the Plan at the end
of each month at the annual rate of 0.35% of average daily net assets of the
Fund relating to Class C shares to compensate MLFD and securities firms with
which MLFD enters into related Sub-Agreements for providing sales and
promotional activities and services.  Such activities and services will relate
to the sale, promotion and marketing of the Class C shares of the Fund.  Such
expenditures may consist of sales commissions to financial consultants for
selling Class C shares of the Fund, compensation, sales incentives and payments
to sales and marketing personnel, and the payment of expenses incurred in its
sales and promotional activities, including advertising expenditures related to
the Fund and the costs of preparing and distributing promotional materials.  The
distribution fee may also be used to pay the financing costs of carrying the
unreimbursed expenditures described in this Paragraph 2.  Payment of the
distribution fee described in this Paragraph 2 shall be subject to any
limitations set forth in any applicable regulation of the National Association
of Securities Dealers, Inc.

     3.  The Trust hereby authorizes MLFD to enter into Sub-Agreements with
certain securities firms ("Securities Firms"), including Merrill Lynch, Pierce,
Fenner & Smith Incorporated, to provide compensation to such Securities Firms
for activities and services of the type referred to in Paragraphs 1 and 2
hereof.  MLFD may reallocate all or a portion of its account maintenance fee or
distribution fee to such Securities Firms as compensation for the
above-mentioned activities and services.  Such Sub-Agreement shall provide that
the Securities Firms shall provide MLFD with such information as is reasonably
necessary to permit MLFD to comply with the reporting requirements set forth in
Paragraph 4 hereof.


                                        2
<PAGE>

     4.  MLFD shall provide the Trust for review by the Board of Trustees, and
the Trustees shall review, at least quarterly, a written report complying with
the requirements of Rule 12b-1 regarding the disbursement of the account
maintenance fee and the distribution fee during such period.

     5.  This Plan shall not take effect until it has been approved by a vote of
at least a majority, as defined in the Investment Company Act, of the
outstanding Class C voting securities of the Fund.

     6.  This Plan shall not take effect until it has been approved, together
with any related agreements, by votes of a majority of both (a) the Trustees of
the Trust and (b) those Trustees of the Trust who are not "interested persons"
of the Trust, as defined in the Investment Company Act, and have no direct or
indirect financial interest in the operation of this Plan or any agreements
related to it (the "Rule 12b-1 Trustees cast in person at a meeting or meetings
called for the purpose of voting on the Plan and such related agreements.

     7.  The Plan shall continue in effect for so long as such continuance is
specifically approved at least annually in the manner provided for approval of
the Plan in Paragraph 6.

     8.  The Plan may be terminated at any time by vote of a majority of the
Rule 12b-1 Trustees, or by vote of a majority of the outstanding Class C voting
securities of the Fund.

     9.  The Plan may not be amended to increase materially the rate of payments
provided for herein unless such amendment is approved by at least a majority, as
defined in the Investment Company Act, of the outstanding Class C voting
securities of the Fund, and by the Trustees of the Trust in the manner provided
for in Paragraph 6 hereof, and no material amendment to the Plan shall be made
unless approved in the manner provided for approval and annual renewal in
Paragraph 6 hereof.

     10.  While the Plan is in effect, the selection and nomination of Trustees
who are not interested persons, as defined in the Investment Company Act, of the
Trust shall be committed to the discretion of the Trustees who are not
interested persons.

     11.  The Fund shall preserve copies of the Plan and any related agreements
and all reports made pursuant to Paragraph 4 hereof, for a period of not less
than six years from the date of the Plan, or the agreements or such report, as
the case may be, the first two years in an easily accessible place.


                                        3
<PAGE>

     12.  The Declaration of Trust establishing the Trust, dated August 2, 1985,
a copy of which, together with all amendments thereto (the "Declaration"), is on
file in the office of the Secretary of the Commonwealth of Massachusetts,
provides that the name "Merrill Lynch Multi-State Municipal Series Trust" refers
to the Trustees under the Declaration collectively as trustees, but not as
individuals or personally; and no Trustee, shareholder, officer, employee or
agent of the Trust shall be held to any personal liability, nor shall resort be
had to their private property for the satisfaction of any obligation or claim or
otherwise in connection with the affairs of the Trust, but the "Trust Property"
only shall be liable.

     IN WITNESS WHEREOF, the parties hereto have executed this Distribution Plan
as of the date first above written.

                    MERRILL LYNCH MULTI-STATE MUNICIPAL SERIES TRUST


                    By
                      -------------------------------------
                         Title:

                    MERRILL LYNCH FUNDS DISTRIBUTOR, INC.


                    By
                      -------------------------------------
                         Title:


                                        4
<PAGE>

                 CLASS C SHARES DISTRIBUTION PLAN SUB-AGREEMENT


     AGREEMENT made as of the      day of October, 1994, by and between Merrill
Lynch Funds Distributor, Inc., a Delaware corporation ("MLFD"), and Merrill
Lynch, Pierce, Fenner & Smith Incorporated, a Delaware corporation ("Securities
Firm").

                              W I T N E S S E T H :

     WHEREAS, MLFD has entered into an agreement with Merrill Lynch Multi-State
Municipal Series Trust, a Massachusetts business trust (the "Trust"), pursuant
to which it acts as the exclusive distributor for the sale of Class C shares of
beneficial interest, par value $0.10 per share (the "Class C shares"), of the
Merrill Lynch [State] Municipal Bond Fund (the "Fund") series of the Trust; and

     WHEREAS, MLFD and the Trust have entered into a Class C Shares Distribution
Plan (the "Plan") pursuant to Rule 12b-1 under the Investment Company Act of
1940, as amended (the "Act"), pursuant to which MLFD receives an account
maintenance fee from the Fund at the annual rate of 0.25% of average daily net
assets of the Fund relating to Class C shares for account maintenance activities
related to Class C shares of the Fund and a distribution fee from the Fund at
the annual rate of 0.35% of average daily net assets of the Fund relating to
Class C shares for providing sales and promotional activities and services
related to the distribution of Class C shares of the Fund; and

     WHEREAS, MLFD desires the Securities Firm to perform certain account
maintenance activities and sales and promotional activities and services for the
Fund's Class C shareholders and the Securities Firm is willing to perform such
activities and services;

     NOW, THEREFORE, in consideration of the mutual covenants contained herein,
the parties hereby agree as follows:

     1.  The Securities Firm shall provide account maintenance activities and
services with respect to the Class C shares of the Fund and incur expenditures
in connection with such activities and services of the types referred to in
Paragraph 1 of the Plan.

     2.  The Securities Firm shall provide sales and promotional activities and
services with respect to the sale of the Class C shares of the Fund, and incur
distribution expenditures, of the types referred to in Paragraph 2 of the Plan.


<PAGE>

     3.  As compensation for its activities and services performed under this
Agreement, MLFD shall pay the Securities Firm an account maintenance fee and a
distribution fee at the end of each calendar month in an amount agreed upon by
the parties hereto.

     4.  The Securities Firm shall provide MLFD, at least quarterly, such
information as reasonably requested by MLFD to enable MLFD to comply with the
reporting requirements of Rule 12b-1 regarding the disbursement of the account
maintenance fee and the distribution fee during such period referred to in
Paragraph 4 of the Plan.

     5.  This Agreement shall not take effect until it has been approved by
votes of a majority of both (a) the Trustees of the Trust and (b) those Trustees
of the Trust who are not "interested persons" of the Trust, as defined in the
Act, and have no direct or indirect financial interest in the operation of the
Plan, this Agreement or any agreements related to the Plan or this Agreement
(the "Rule 12b-1 Trustees"), cast in person at a meeting or meetings called for
the purpose of voting on this Agreement.

     6.  This Agreement shall continue in effect for as long as such continuance
is specifically approved at least annually in the manner provided for approval
of the Plan in Paragraph 6.

     7.  This Agreement shall automatically terminate in the event of its
assignment or in the event of the termination of the Plan or any amendment to
the Plan that requires such termination.

     IN WITNESS WHEREOF, the parties hereto have executed and delivered this
Agreement as of the date first above written.

                         MERRILL LYNCH FUNDS DISTRIBUTOR, INC.



                         By
                           -------------------------------------
                              Title:


                         MERRILL LYNCH, PIERCE, FENNER & SMITH
                                     INCORPORATED



                         By
                           -------------------------------------
                              Title:


                                        2


<PAGE>

                                                                   Exhibit 15(d)

                            CLASS D DISTRIBUTION PLAN

                                       OF

                    MERRILL LYNCH [STATE] MUNICIPAL BOND FUND
                MERRILL LYNCH MULTI-STATE MUNICIPAL SERIES TRUST

                             PURSUANT TO RULE 12b-1

     DISTRIBUTION PLAN made as of the      day of October, 1994, by and between
Merrill Lynch Multi-State Municipal Series Trust, a Massachusetts business trust
(the "Trust"), and Merrill Lynch Funds Distributor, Inc., a Delaware corporation
("MLFD").

                              W I T N E S S E T H :

     WHEREAS, the Trust is engaged in business as an open-end investment company
registered under the Investment Company Act of 1940, as amended (the "Investment
Company Act"); and

     WHEREAS, the Trust is authorized to establish separate ("Series") each of
which will offer separate classes of shares of beneficial interest par value
$0.10 per share (the "Shares") to selected groups of purchasers; and

     WHEREAS, MLFD is a securities firm engaged in the business of selling
shares of investment companies either directly to purchasers or through other
securities dealers; and

     WHEREAS, the Trust proposes to enter into a Class D Shares Distribution
Agreement with MLFD, pursuant to which MLFD will act as the exclusive
distributor and representative of the Trust in the offer and sale of Class D
shares of beneficial interest, par value $0.10 per share (the "Class D shares"),
of the Merrill Lynch [State] Municipal Bond Fund (the "Fund") series of the
Trust to the public; and

     WHEREAS, the Trust desires to adopt this Class D Distribution Plan (the
"Plan") pursuant to Rule 12b-1 under the Investment Company Act, pursuant to
which the Trust will pay an account maintenance fee to MLFD with respect to the
Fund's Class D shares; and

     WHEREAS, the Trustees of the Trust have determined that there is a
reasonable likelihood that adoption of the Plan will benefit the Fund and its
shareholders.

     NOW, THEREFORE, the Trust hereby adopts, and MLFD hereby agrees to the
terms of, the Plan in accordance with Rule 12b-1


<PAGE>

under the Investment Company Act on the following terms and conditions:

     1.  The Trust shall pay MLFD an account maintenance fee under the Plan at
the end of each month at the annual rate of 0.10% of average daily net assets of
the Fund relating to Class D shares to compensate MLFD and securities firms with
which MLFD enters into related agreements ("Sub-Agreements") pursuant to
Paragraph 2 hereof for providing account maintenance activities with respect to
Class D shareholders of the Fund.  Expenditures under the Plan may consist of
payments to financial consultants for maintaining accounts in connection with
Class D shares of the Fund and payment of expenses incurred in connection with
such account maintenance activities including the costs of making services
available to shareholders including assistance in connection with inquiries
related to shareholder accounts.

     2.  The Trust hereby authorizes MLFD to enter into Sub-Agreements with
certain securities firms ("Securities Firms"), including Merrill Lynch, Pierce,
Fenner & Smith Incorporated, to provide compensation to such Securities Firms
for activities of the type referred to in Paragraph 1.  MLFD may reallocate all
or a portion of its account maintenance fee to such Securities Firms as
compensation for the above-mentioned activities.  Such Sub-Agreement shall
provide that the Securities Firms shall provide MLFD with such information as is
reasonably necessary to permit MLFD to comply with the reporting requirements
set forth in Paragraph 3 hereof.

     3.  MLFD shall provide the Trust for review by the Board of Trustees, and
the Trustees shall review, at least quarterly, a written report complying with
the requirements of Rule 12b-1 regarding the disbursement of the account
maintenance fee during such period.

     4.  This Plan shall not take effect until it has been approved by a vote of
at least a majority, as defined in the Investment Company Act, of the
outstanding Class D voting securities of the Fund.

     5.  This Plan shall not take effect until it has been approved, together
with any related agreements, by votes of a majority of both (a) the Trustees of
the Trust and (b) those Trustees of the Trust who are not "interested persons"
of the Trust, as defined in the Investment Company Act, and have no direct or
indirect financial interest in the operation of this Plan or any agreements
related to it (the "Rule 12b-1 Trustees"), cast in person at a meeting or
meetings called for the purpose of voting on the Plan and such related
agreements.


                                        2
<PAGE>

     6.  The Plan shall continue in effect for so long as such continuance is
specifically approved at least annually in the manner provided for approval of
the Plan in Paragraph 5.

     7.  The Plan may be terminated at any time by vote of a majority of the
Rule 12b-1 Trustees, or by vote of a majority of the outstanding Class D voting
securities of the Fund.

     8.  The Plan may not be amended to increase materially the rate of payments
provided for in Paragraph 1 hereof unless such amendment is approved by at least
a majority, as defined in the Investment Company Act, of the outstanding Class D
voting securities of the Fund, and by the Trustees of the Trust in the manner
provided for in Paragraph 5 hereof, and no material amendment to the  Plan shall
be made unless approved in the manner provided for approval and annual renewal
in Paragraph 5 hereof.

     9.  While the Plan is in effect, the selection and nomination of Trustees
who are not interested persons, as defined in the Investment Company Act, of the
Trust shall be committed to the discretion of the Trustees who are not
interested persons.

     10. The Fund shall preserve copies of the Plan and any related agreements
and all reports made pursuant to Paragraph 3 hereof, for a period of not less
than six years from the date of the Plan, or the agreements or such report, as
the case may be, the first two years in an easily accessible place.

     11.  The Declaration of Trust establishing the Trust, dated August 2, 1985,
a copy of which, together with all amendments thereto (the "Declaration"), is on
file in the office of the Secretary of the Commonwealth of Massachusetts,
provides that the name "Merrill Lynch Multi-State Municipal Series Trust" refers
to the Trustees under the Declaration collectively as trustees, but not as
individuals or personally; and no Trustee, shareholder, officer, employee or
agent of the Trust shall be held to any personal liability, nor shall resort be
had to their private property for the satisfaction of any obligation or claim or
otherwise in connection with the affairs of the Trust, but the "Trust Property"
only shall be liable.


                                        3
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have executed this Distribution Plan
as of the date first above written.

                    MERRILL LYNCH MULTI-STATE MUNICIPAL SERIES TRUST


                    By
                      -------------------------------------
                         Title:


                    MERRILL LYNCH FUNDS DISTRIBUTOR, INC.



                    By
                      -------------------------------------
                         Title:


                                        4
<PAGE>

                 CLASS D SHARES DISTRIBUTION PLAN SUB-AGREEMENT


     AGREEMENT made as of the      day of October, 1994, by and between Merrill
Lynch Funds Distributor, Inc. a Delaware corporation ("MLFD"), and Merrill
Lynch, Pierce, Fenner & Smith Incorporated, a Delaware corporation ("Securities
Firm").

                              W I T N E S S E T H :

     WHEREAS, MLFD has entered into an agreement with Merrill Lynch Multi-State
Municipal Series Trust, a Massachusetts business trust (the "Trust"), pursuant
to which it acts as the exclusive distributor for the sale of Class D shares of
beneficial interest, par value $0.10 per share (the "Class D shares"), of the
Merrill Lynch [State] Municipal Bond Fund (the "Fund") series of the Trust; and

     WHEREAS, MLFD and the Trust have entered into a Class D Shares Distribution
Plan (the "Plan") pursuant to Rule 12b-1 under the Investment Company Act of
1940, as amended (the "Act"), pursuant to which MLFD receives an account
maintenance fee from the Fund at the annual rate of 0.10% of average daily net
assets of the Fund relating to Class D shares for providing account maintenance
activities and services with respect to Class D shares; and

     WHEREAS, MLFD desires the Securities Firm to perform certain account
maintenance activities and services, including assistance in connection with
inquiries related to shareholder accounts, for the Fund's Class D shareholders
and the Securities Firm is willing to perform such services;

     NOW, THEREFORE, in consideration of the mutual covenants contained herein,
the parties hereby agree as follows:

     1.  The Securities Firm shall provide account maintenance activities and
services with respect to the Class D shares of the Fund and incur expenditures
in connection with such activities and services, of the types referred to in
Paragraph 1 of the Plan.

     2.  As compensation for its services performed under this Agreement, MLFD
shall pay the Securities Firm a fee at the end of each calendar month in an
amount agreed upon by the parties hereto.

     3.  The Securities Firm shall provide MLFD, at least quarterly, such
information as reasonably requested by MLFD to enable MLFD to comply with the
reporting requirements of Rule


<PAGE>

12b-1 regarding the disbursement of the fee during such period referred to in
Paragraph 3 of the Plan.

     4.  This Agreement shall not take effect until it has been approved by
votes of a majority of both (a) the Trustees of the Trust and (b) those Trustees
of the Trust who are not "interested persons" of the Trust, as defined in the
Act, and have no direct or indirect financial interest in the operation of the
Plan, this Agreement or any agreements related to the Plan or this Agreement
(the "Rule 12b-1 Trustees"), cast in person at a meeting or meetings called for
the purpose of voting on this Agreement.

     5.  This Agreement shall continue in effect for as long as such continuance
is specifically approved at least annually in the manner provided for approval
of the Plan in Paragraph 5.

     6.  This Agreement shall automatically terminate in the event of its
assignment or in the event of the termination of the Plan or any amendment to
the Plan that requires such termination.

     IN WITNESS WHEREOF, the parties hereto have executed and delivered this
Agreement as of the date first above written.

                         MERRILL LYNCH FUNDS DISTRIBUTOR, INC.



                         By
                           -------------------------------------
                              Title:


                         MERRILL LYNCH, PIERCE, FENNER & SMITH
                                     INCORPORATED



                         By
                           -------------------------------------
                              Title:


                                        2

WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 6
<SERIES>
   <NUMBER> 8
   <NAME> MERRILL LYNCH ARIZONA MUNICIPAL BOND FUND
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          JUL-31-1994
<PERIOD-START>                             AUG-01-1993
<PERIOD-END>                               JUL-31-1994
<INVESTMENTS-AT-COST>                         97578922
<INVESTMENTS-AT-VALUE>                        98599603
<RECEIVABLES>                                   942862
<ASSETS-OTHER>                                   59649
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<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       623338
<TOTAL-LIABILITIES>                             623338
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                      97830323
<SHARES-COMMON-STOCK>                          1765263
<SHARES-COMMON-PRIOR>                          1633604
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                         127772
<OVERDISTRIBUTION-GAINS>                             0
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<NET-ASSETS>                                  18363001
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                              6067542
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 1005474
<NET-INVESTMENT-INCOME>                        5062068
<REALIZED-GAINS-CURRENT>                       1099669
<APPREC-INCREASE-CURRENT>                    (5162578)
<NET-CHANGE-FROM-OPS>                           999159
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                      1026371
<DISTRIBUTIONS-OF-GAINS>                        387548
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<NUMBER-OF-SHARES-SOLD>                         627096
<NUMBER-OF-SHARES-REDEEMED>                     562798
<SHARES-REINVESTED>                              67361
<NET-CHANGE-IN-ASSETS>                         (87164)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                      1129666
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
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<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                1244942
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<PER-SHARE-NAV-BEGIN>                            11.01
<PER-SHARE-NII>                                    .57
<PER-SHARE-GAIN-APPREC>                          (.39)
<PER-SHARE-DIVIDEND>                               .57
<PER-SHARE-DISTRIBUTIONS>                          .22
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.40
<EXPENSE-RATIO>                                    .80
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 6
<SERIES>
   <NUMBER> 8
   <NAME> MERRILL LYNCH ARIZONA MUNICIPAL BOND FUND
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          JUL-31-1994
<PERIOD-START>                             AUG-01-1993
<PERIOD-END>                               JUL-31-1994
<INVESTMENTS-AT-COST>                         97578922
<INVESTMENTS-AT-VALUE>                        98599603
<RECEIVABLES>                                   942862
<ASSETS-OTHER>                                   59649
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                99602114
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       623338
<TOTAL-LIABILITIES>                             623338
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                      97830323
<SHARES-COMMON-STOCK>                          7749668
<SHARES-COMMON-PRIOR>                          7363089
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<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                         127772
<OVERDISTRIBUTION-GAINS>                             0
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<NET-ASSETS>                                  80615775
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                              6067542
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 1005474
<NET-INVESTMENT-INCOME>                        5062068
<REALIZED-GAINS-CURRENT>                       1099669
<APPREC-INCREASE-CURRENT>                    (5162578)
<NET-CHANGE-FROM-OPS>                           999159
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                      4035697
<DISTRIBUTIONS-OF-GAINS>                       1714015
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        1806398
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<EXPENSE-RATIO>                                   1.30
<AVG-DEBT-OUTSTANDING>                               0
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</TABLE>


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