AON CORP
S-3, 1999-05-18
ACCIDENT & HEALTH INSURANCE
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     As filed with the Securities and Exchange Commission on May 18, 1999
                                                         Registration No. 333-
================================================================================
                     SECURITIES AND EXCHANGE COMMISSION
                           Washington, D.C. 20549

                                    FORM S-3
                             REGISTRATION STATEMENT
                                      Under
                           The Securities Act of 1933
                               Aon CORPORATION
           (Exact name of registrant as specified in its charter)

        Delaware                                         36-3051915
(State of incorporation)                    (I.R.S. Employer Identification No.)

                           123 North Wacker Drive
                           Chicago, Illinois 60606
                               (312) 701-3000
  (Address, including zip code, and telephone number, including area code, of
                   registrant's principal executive offices)

       Raymond I. Skilling, Executive Vice President and Chief Counsel
                               Aon Corporation
                           123 North Wacker Drive
                           Chicago, Illinois 60606
                               (312) 701-3000

 (Name, address, including zip code, and telephone number, including area code,
                of agent for service) Copy of communications to:


                           Dennis V. Osimitz, Esq.
                               Sidley & Austin
                          One First National Plaza
                           Chicago, Illinois 60603
                               (312) 853-7000

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

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

   If the only  securities  being  registered  on this  form are  being  offered
pursuant to dividend or interest  reinvestment plans, please check the following
box. [_]

   If any of the securities being registered on this form are to be offered
on a delayed or continuous basis pursuant to Rule 415 under the Securities
Act of 1933, other than securities offered only in connection with dividend
or interest reinvestment plans, check the following box. [X]

   If this  form is filed to  register  additional  securities  for an  offering
pursuant to Rule 462(b) under the  Securities  Act,  check the following box and
list the Securities Act registration  statement number of the earlier  effective
registration statement for the same offering. [_]

   If this form is a  post-effective  amendment  filed  pursuant  to Rule 462(c)
under the  Securities  Act,  check the following box and list the Securities Act
registration  statement number of the earlier effective  registration  statement
for the same offering. [_]

   If delivery of the prospectus is expected to be made pursuant to Rule
434, please check the following box. [_]

<TABLE>
<CAPTION>
                                      CALCULATION OF REGISTRATION FEE
=====================================================================================================
                                                                    Proposed    Proposed
                                                                    Maximum      Maximum    
                                                       Amount To   Offering    Aggregate    Amount of
                                                           Be        Price      Offering  Registration
Title of Each Class of Securities To Be Registered     Registered   Per Unit  Price (2)(3)     Fee
- -----------------------------------------------------------------------------------------------------
<S>                                                                    <C>
Debt securities (4)...............................                     (1)
- -----------------------------------------------------------------------------------------------------
Preferred stock, par value $1.00 per share (5)....                     (1)
- -----------------------------------------------------------------------------------------------------
Common stock, par value $1.00 per share (6).......                     (1)
- -----------------------------------------------------------------------------------------------------
Total (7).........................................     $500,000,000   100%    $500,000,000   $139,000
- -----------------------------------------------------------------------------------------------------
<FN>
(1)   The proposed maximum offering price per unit will be determined at various
      times by the registrant in connection  with the issuance by the registrant
      of the securities registered hereunder.
(2)   The proposed maximum aggregate  offering price has been estimated only for
      the purpose of calculating the registration fee pursuant to Rule 457 under
      the  Securities  Act of 1933, as amended.  The aggregate  public  offering
      price of the debt securities,  preferred stock and common stock registered
      hereby will not exceed  $500,000,000  or the equivalent  thereof in one or
      more foreign currencies, foreign currency units or composite currencies.
(3)   Exclusive of accrued interest, distributions and dividends, if any.
(4)   Subject  to note  (7)  below,  there  is  being  registered  hereunder  an
      indeterminate  principal  amount of debt  securities of Aon Corporation as
      may be sold at various times.
(5)   Subject  to note  (7)  below,  there  is  being  registered  hereunder  an
      indeterminate number of shares of preferred stock of Aon Corporation as at
      various times may be issued at indeterminate  prices.  Includes  preferred
      stock which may be purchased by underwriters to cover over-allotments,  if
      any.
(6)   Subject  to note  (7)  below,  there  is  being  registered  hereunder  an
      indeterminate  number of shares of common stock of Aon  Corporation  as at
      various times may be issued at indeterminate prices.
(7)   In no event will the aggregate  offering price of all securities issued at
      various times pursuant to this registration  statement exceed $500,000,000
      or the  equivalent  thereof  in one or more  foreign  currencies,  foreign
      currency units or composite currencies.
</FN>
</TABLE>

      The registrant hereby amends this  registration  statement on such date or
dates as may be necessary to delay its effective date until the registrant shall
file a further  amendment  which  specifically  states  that  this  registration
statement shall  thereafter  become effective in accordance with Section 8(a) of
the  Securities  Act of 1933 or until the  registration  statement  shall become
effective on such date as the Commission,  acting pursuant to said Section 8(a),
may determine.

<PAGE>
                 Subject To Completion, Dated _____ __, 1999

Prospectus
================================================================================
                               Aon CORPORATION
                               DEBT SECURITIES
                               PREFERRED STOCK
                                 COMMON STOCK
================================================================================

    We will  describe  the  specific  terms of these  securities  in one or more
supplements  to  this  prospectus.  You  should  read  this  prospectus  and the
applicable supplements carefully before you invest.

    Our  executive  offices  are  located at 123 North  Wacker  Drive,  Chicago,
Illinois 60606, and our telephone number is (312) 701-3000.

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

    We may offer these securities in any of the following ways:

       o      directly to purchasers;

       o      through agents;

       o      through dealers; or

       o      through one or more underwriters or a syndicate of
              underwriters in an underwritten offering.

    Additional information on our plan of distribution can be found inside under
"Plan  of  Distribution."  We will  describe  the plan of  distribution  for any
securities in the applicable prospectus supplements.


- ------------------------------------------------------------------------------
The  information in this  prospectus is not complete and may be changed.  We may
not sell  these  securities  until the  registration  statement  filed  with the
Securities and Exchange Commission is effective. This prospectus is not an offer
to  sell  these  securities  and it is not  soliciting  an  offer  to buy  these
securities in any state where the offer or sale is not permitted.
- ------------------------------------------------------------------------------
                    The date of this Prospectus is , 1999.


<PAGE>
                              TABLE OF CONTENTS

                                                                            Page
                                                                            ----

 About This Prospectus......................................................  2
 Where You Can Find More Information........................................  2
 The Company................................................................  4
 Use of Proceeds............................................................  4
 Selected Financial Data....................................................  4
 Ratios.....................................................................  5
 Description of Debt Securities.............................................  5
 Description of Preferred Stock and Common Stock............................ 15
 Plan of Distribution....................................................... 17
 Validity of Securities..................................................... 18
 Experts.................................................................... 18


                            ABOUT THIS PROSPECTUS

    This  prospectus  is part of a  registration  statement  (No. 333- ) that we
filed with the Securities and Exchange  Commission  ("SEC")  utilizing a "shelf"
registration process.  Under this shelf process, we may offer up to $500,000,000
of the debt  securities,  preferred  stock and common  stock  described  in this
prospectus  in one or more  offerings.  In this  prospectus we will refer to the
debt  securities,   preferred  stock  and  common  stock   collectively  as  the
"securities."  This  prospectus  provides you with a general  description of the
securities we may offer. Each time we offer securities, we will provide you with
a prospectus supplement and, if applicable, a pricing supplement. The prospectus
supplement  and any  applicable  pricing  supplement  will describe the specific
terms  of the  securities  being  offered.  The  prospectus  supplement  and any
applicable  pricing supplement may also add, update or change the information in
this  prospectus.   Please  carefully  read  this  prospectus,   the  applicable
prospectus  supplement and any applicable pricing supplement,  together with the
information  contained in the documents referred to under the heading "Where You
Can Find More Information."


                     WHERE YOU CAN FIND MORE INFORMATION

    We file annual,  quarterly and special reports, proxy statements,  and other
information  with the SEC.  You may read and copy any  document we file with the
SEC at the SEC's Public  Reference Room at 450 Fifth Street,  N.W.,  Washington,
D.C. 20549 or at the SEC's regional offices located at Citicorp Center, 500 West
Madison  Street,  Suite 1400,  Chicago,  Illinois  60661-2511  and 7 World Trade
Center, Suite 1300, New York, New York 10048. You may obtain further information
on  the  operation  of  the  Public   Reference  Room  by  calling  the  SEC  at
1-800-SEC-0330.  Our SEC  filings  are also  available  to the  public  over the
Internet  at the  SEC's Web site at  http://www.sec.gov.  In  addition,  you may
inspect our SEC filings at the offices of the New York Stock Exchange,  20 Broad
Street, New York, New York 10005, the Chicago Stock Exchange,  440 South LaSalle
Street, Chicago, Illinois 60605 and the London Stock Exchange, Old Broad Street,
London,   England  EC2N1HP.  You  may  find  additional  information  about  Aon
Corporation and its subsidiaries at our Web site at http://www.aon.com.

    The SEC allows us to  "incorporate  by reference"  into this  prospectus the
information  we file with the SEC,  which means that we can  disclose  important
information  to you  by  referring  you  to  those  documents.  Any  information
referenced  this  way is  considered  to be  part of  this  prospectus,  and any
information  that we file  later  with the SEC  will  automatically  update  and
supersede this information.  We incorporate by reference the following documents
that we have filed with the SEC and any future filings that we make with the SEC
under Sections 13(a), 13(c), 14, or 15(d) of the Securities Exchange Act of 1934
until we complete our sale of the securities to the public:

                                      -2-
<PAGE>
       o Annual Report on Form 10-K for the year ended December 31, 1998 (common
         stock  and per  share  data do not  reflect  the  3-for-2  stock  split
         effective May 17, 1999);  see  "Selected  Financial  Data" on Page 4 of
         this Prospectus;

       o Proxy statement for the 1999 Annual Meeting of Stockholders filed
         March 8, 1999;

       o Quarterly Report on Form 10-Q for the quarter ended March 31, 1999;
         and

       o The description of Aon Corporation's  common stock contained in Item 12
         of the  registration  statement  on Form 10 filed on February  19, 1980
         (when  we were  called  Combined  International  Corporation),  and any
         amendment or report which we have filed (or will file after the date of
         this  prospectus and prior to the termination of this offering) for the
         purpose of  updating  such  description,  including  Aon  Corporation's
         Current Report on Form 8-K dated April 23, 1987.

    This  prospectus is part of a registration  statement we have filed with the
SEC relating to the securities.  As permitted by SEC rules, this prospectus does
not contain all of the information  included in the  registration  statement and
the  accompanying  exhibits and schedules we file with the SEC. You may refer to
the  registration  statement and the exhibits and schedules for more information
about  us and our  securities.  The  registration  statement  and  exhibits  and
schedules are also  available at the SEC's Public  Reference Room or through its
Web site.

    You may  obtain  a copy of  these  filings,  at no cost,  by  writing  to or
telephoning us at the following address:

           Aon Corporation
           123 North Wacker Drive
           Chicago, Illinois 60606
           Telephone (312) 701-3000
           Attention:  Corporate Secretary

    You  should  rely  only on the  information  incorporated  by  reference  or
provided in this prospectus and the applicable  prospectus supplement and in any
pricing  supplement.  We have not  authorized  anyone  else to provide  you with
different  information.  You  should  not assume  that the  information  in this
prospectus,  any applicable  prospectus  supplement or any pricing supplement is
accurate  as of any date  other  than the  date on the  cover of the  applicable
document.  We are not making an offer of the  securities  in any state where the
offer or sale is not permitted.

                                      -3-
<PAGE>
                                   THE COMPANY

      Aon Corporation is an insurance  services  holding company for a family of
insurance brokerage,  consulting and consumer insurance  companies.  Through its
insurance   brokerage  and  other  services  and  consulting   operations,   Aon
Corporation offers commercial insurance  brokerage,  alternative risk solutions,
risk management,  employee  benefit and human resources  consulting and managing
general  underwriting  services.  In  addition,   Aon  Corporation's   insurance
underwriting  businesses  provide a variety  of  insurance  products,  including
accident  and  health   coverage,   traditional   life  insurance  and  extended
warranties.  Aon Corporation's revenues were $6.5 billion in 1998. Based on 1998
insurance  brokerage  and  consulting  revenues,  management  believes  that the
Company is the second largest insurance brokerage company in the world.


                                  USE OF PROCEEDS

      Unless we state  otherwise in the  applicable  prospectus  supplement,  we
expect  to use the net  proceeds  from the sale of the  securities  for  general
corporate  purposes,   including   securities   repurchase   programs,   capital
expenditures,   working  capital,   repayment  or  reduction  of  long-term  and
short-term debt and the financing of  acquisitions.  We may invest funds that we
do not immediately require in short-term marketable securities.

                               SELECTED FINANCIAL DATA

            The dilutive and basic per share data and common stock data included
in  "Selected  Financial  Data" in our  Annual  Report on Form 10-K for the year
ended  December 31, 1998 is restated  below to reflect the  three-for-two  stock
split effective May 17, 1999.

<TABLE>
<CAPTION>
SELECTED FINANCIAL DATA
                                                       1998              1997             1996              1995             1994
- ----------------------------------------------------------------------------------------------------------------------------------
<S>                                                  <C>               <C>              <C>                <C>              <C>  
DILUTIVE PER SHARE DATA
  Income from continuing operations 
    excluding special charges                        $ 2.07            $ 1.55           $ 1.33             $1.14            $1.01
  Income from continuing operations                    2.07              1.12             1.10              1.14             1.01
  Discontinued operations                                 -                 -             0.17              0.39             0.38
  Net income                                           2.07              1.12             1.27              1.53             1.39
BASIC PER SHARE DATA
  Income from continuing operations                    2.11              1.14             1.11              1.15             1.02
  Net income                                           2.11              1.14             1.29              1.55             1.41
==================================================================================================================================

COMMON STOCK DATA
  Dividends paid per share                           $ 0.73            $ 0.68           $ 0.63            $ 0.59           $ 0.56
  Stockholders' equity per share                      11.83             11.20            10.81             10.12             8.13
  Price range                                50 3/8-32 3/16   39 1/4-26 13/16   28 3/4-21 1/16  22 9/16-13 15/16      15 15/16-13
  Market price at year-end                           36.917            39.083           27.583            22.167           14.250
  Common stockholders                                12,294            12,698           13,030            13,520           14,163
  Shares outstanding  (in millions)                   255.0             252.0            249.6             243.6            242.3
==================================================================================================================================
</TABLE>


                                      -4-
<PAGE>
                                    RATIOS

      Our ratios of earnings to fixed charges and of earnings to combined  fixed
charges and preferred stock  dividends for each of the periods  indicated are as
follows:


<TABLE>
<CAPTION>
                                             Fiscal Quarters                                    
                                              Ended March 31,      Fiscal Year Ended December  31,
                                              1999       1998       1998  1997  1996 1995  1994
                                              ----       ----       ----  ----  ---- ----  ----
<S>                                            <C>        <C>        <C>   <C>   <C>  <C>   <C>
 Ratio of earnings to fixed charges            3.8        8.5        7.6   5.6   6.7  6.6   5.9


 Ratio of earnings to fixed charges (1)        8.6                         7.1   7.9

                                         

 Ratio of earnings to combined fixed           2.5        5.5        5.1   3.3   4.9   4.5  3.7
 charges and preferred stock dividends (2)       


 Ratio of earnings to combined  fixed charges  5.7                         4.2   5.8
 and preferred stock dividends (1)

<FN>
      (1) Reflects the exclusion of special  charges from income from continuing
operations  before  provision  for income taxes and minority  interests  for the
first quarter ended March 31, 1999 and for the years ended December 31, 1997 and
1996, respectively.

      (2) Reflects the inclusion  into total fixed  charges and preferred  stock
dividends for the first quarters ended March 31, 1999 and 1998 and for the years
ended  December 31, 1998 and 1997 of $16 million,  $16 million,  $66 million and
$64 million, respectively, of pre-tax  distributions  on the 8.205%  mandatorily
redeemable  preferred  capital  securities  which are  classified  as  "minority
interest" on our condensed consolidated statements of operations.
</FN>
</TABLE>

      For these ratios,  earnings  consist of income from continuing  operations
before  provision  for income  taxes and  minority  interests  and before  fixed
charges.  Fixed  charges  include  interest  expense and that  portion of rental
expense we deem to represent  interest.  Combined  fixed  charges and  preferred
stock dividends include preferred stock dividend requirements,  interest expense
and that  portion of rental  expense we deem to  represent  interest.  Preferred
stock dividends consist of the pre-tax earnings required to pay dividends on all
preferred  stock.  Our earnings,  fixed charges and  preferred  stock  dividends
include  the  earnings,  fixed  charges and  preferred  stock  dividends  of Aon
Corporation and its subsidiaries considered as one enterprise.


                        DESCRIPTION OF DEBT SECURITIES

      This prospectus describes certain general terms and provisions of our debt
securities.  When we offer to sell a particular  series of debt  securities,  we
will  describe  the  specific  terms  of the  series  in a  supplement  to  this
prospectus.  We will also indicate in the applicable  prospectus  supplement the
extent to which the general terms and  provisions  described in this  prospectus
apply to a particular series of debt securities.

      The debt  securities  we may offer  pursuant  to this  prospectus  will be
unsecured   obligations  of  Aon  Corporation  and  will  be  either  senior  or
subordinated  debt.  We will issue  senior debt under an  indenture  dated as of
September 15, 1992, as may be supplemented, between us and The Bank of New York,
as the successor senior indenture trustee. We will issue subordinated debt under
an indenture to be dated as of a date before the first issuance of  subordinated
debt,  as  may  be  supplemented,  between  us  and  U.S.  Bank  Trust  National
Association,  as the subordinated  indenture trustee.  The senior debt indenture
and the subordinated debt indenture are sometimes referred to in this prospectus
individually as an "indenture"  and  collectively  as the  "indentures"  and the
senior indenture  trustee and the subordinated  indenture  trustee are sometimes
referred to in this  prospectus  individually as a "trustee." We have summarized
selected  provisions

                                      -5-
<PAGE>
of the  indentures  below.  This is a summary and is not  complete.  It does not
describe certain  exceptions and  qualifications  contained in the indentures or
the debt  securities.  If you would like more  information  on the provisions of
either of the  indentures,  you should read the more detailed  provisions of the
applicable  indenture,  both of which have been  incorporated  by  reference  as
exhibits to the registration statement for the debt securities.  In the summary,
we  have  included  parenthetical  references  to  the  section  numbers  of the
applicable indenture so that you can easily locate those provisions.

GENERAL

      The debt securities will be unsecured obligations of Aon Corporation.  The
indentures  do not limit the amount of debt  securities  that we may issue under
them. The indentures provide that we may issue debt securities from time to time
in one or more series. We have previously issued debt securities pursuant to the
senior debt indenture.

      The debt  securities  issued  under  the  senior  debt  indenture  will be
unsecured  obligations and will rank equally with each other and with all of our
other unsecured and  unsubordinated  indebtedness.  The debt  securities  issued
under the subordinated debt indenture will be subordinate and junior in right of
payment,  as more fully described in the subordinated debt indenture,  to all of
our  senior  indebtedness.  See  "--Subordination  under the  Subordinated  Debt
Indenture."

      Because we are a holding  company,  the holders of the debt securities may
not receive  assets of our  subsidiaries  in a liquidation  or  recapitalization
until the claims of our subsidiaries'  creditors and insurance policyholders (in
the case of insurance  subsidiaries)  are paid, except to the extent that we may
have  recognized  claims  against  such  subsidiaries.   In  addition,   certain
regulatory laws limit some of our  subsidiaries,  including  Combined  Insurance
Company of America,  from making  payments to us of  dividends  and on loans and
other transfers of funds.

      We will  include  in a  supplement  to  this  prospectus  and any  pricing
supplement the specific terms relating to the debt securities being offered.
These terms will include some or all of the following:

      o     the title of the debt  securities and whether the debt  securities
            will be senior or subordinated debt;

      o     the total principal amount of the debt securities;

      o     the maturity date or dates of the debt securities;

      o     the  interest  rate  or  rates,  if any  (which  may be  fixed  or
            variable)  and, if  applicable,  the method used to calculate  the
            interest rate;

      o     the date or dates  from  which  interest  will  accrue  and on which
            interest will be payable and the dates used to determine the persons
            to whom interest will be paid;

      o     the  place or  places  where  principal  of,  and any  premium  or
            interest on, the debt securities will be paid;

      o     whether (and if so, when and under what terms and  conditions) the
            debt  securities  may be  redeemed  by us at our  option or at the
            option of the holders;

      o     whether there will be a sinking fund;

      o     if other than United States dollars and  denominations  of $1,000 or
            any multiple of $1,000,  the currency or currencies or currency unit
            or currency units and denomination in which the debt securities will
            be issued;

                                      -6-
<PAGE>
      o     if other than the principal  amount,  the portion of the principal
            amount of the debt securities  that we will pay upon  acceleration
            of the maturity date;

      o     whether we will issue the debt  securities in registered or bearer
            ("unregistered") form or both;

      o     if  we  issue  debt   securities   in   unregistered   form,   any
            restrictions  on the  exchange  of one form for another and to the
            offer, sale and delivery of such unregistered securities;

      o     whether  and under what  circumstances  and  conditions  we will pay
            additional amounts on the debt securities held by foreign persons in
            respect of any tax,  assessment or  governmental  charge  imposed on
            such  holders  with  respect  to the  debt  securities  ("additional
            amounts");

      o     whether  we will  issue the debt  securities  in  certificated  or
            book-entry form;

      o     with respect to subordinated  debt securities,  whether they will be
            convertible into shares of common stock and the terms and conditions
            governing such conversion; and

      o     any other terms of the series being offered, so long as they are not
            inconsistent with any provision of the applicable indenture.
            (Section 2.01)

      If we denominate  the purchase  price of a series of debt  securities in a
foreign  currency or currencies or a foreign  currency unit or units,  or if the
principal  of, any premium and  interest  on, and any  additional  amounts  with
respect to any series of debt  securities  is payable in a foreign  currency  or
currencies  or a foreign  currency  unit or units,  we will describe any special
United States federal  income tax  considerations  in the applicable  prospectus
supplement.

      We will pay principal and any interest,  premium and additional amounts in
the  manner,  at the places and  subject  to the  restrictions  set forth in the
indentures,  the debt securities and the applicable  prospectus  supplement.  We
will  not  impose  a  service  charge  for  any  transfer  or  exchange  of debt
securities,  but we may require  payment of a sum sufficient to cover any tax or
other governmental charge that may be imposed.  (Section 2.05) Unregistered debt
securities and any related coupons will be  transferable  by delivery.  (Section
2.05)

      Unless otherwise  indicated in the applicable  prospectus  supplement,  we
will issue  debt  securities  in fully  registered  form,  without  coupons,  in
denominations of $1,000 or multiples of $1,000. (Sections 2.01 and 2.04)

      We may  offer  to  sell  at a  substantial  discount  below  their  stated
principal  amount,  debt  securities  bearing no  interest or interest at a rate
that,  at the time of issuance,  is below the  prevailing  market rate.  We will
describe any special United States federal income tax considerations  applicable
to any  of  those  discounted  debt  securities  in  the  applicable  prospectus
supplement.

      We may offer to sell debt  securities  in which the  principal or interest
will  be  determined  by  reference  to one or  more  currency  exchange  rates,
commodity  prices,  equity  indices or other  factors.  The principal  amount or
payment of interest  applicable to such debt  securities  may be greater than or
less than the amount of principal or interest otherwise payable,  depending upon
the value of the applicable currency, commodity, equity index or other factor on
the date on which such  principal  or  interest is due. We will set forth in the
applicable prospectus supplement information about the methods used to determine
the  amount of  principal  or  interest  payable  on any date,  the  currencies,
commodities, equity indices or other factors to which the amount payable on that
date is linked and certain additional tax considerations applicable to such debt
securities.

      The senior  debt  indenture  limits our ability to incur  certain  secured
indebtedness. See "--Limitation on Liens under Senior Indenture." The indentures
do not restrict our ability to incur unsecured  indebtedness  or, subject to the

                                      -7-
<PAGE>
restrictions   described   in   "--Consolidation   and  Merger,"  to  engage  in
reorganizations, restructurings, mergers, consolidations or similar transactions
that have the effect of  increasing  our  indebtedness.  Accordingly,  unless we
state  otherwise in the  applicable  supplement,  the debt  securities  will not
contain any provisions that afford holders  protection against us incurring such
indebtedness  or  engaging  in certain  reorganizations  or  transactions.  As a
result, we could become highly leveraged.

LIMITATION ON LIENS UNDER SENIOR INDENTURE

      Under the senior debt  indenture we have agreed,  among other  things,  to
not,  directly or  indirectly,  create,  issue,  assume,  incur or guarantee any
indebtedness  for money borrowed which is secured by a mortgage,  pledge,  lien,
security  interest or other  encumbrance  of any nature on any of the present or
future  common  stock of  Combined  Insurance  Company  of  America,  one of our
subsidiaries  (or any company  besides us having  direct or indirect  control of
such  subsidiary).  This  restriction  will not apply if we ensure that the debt
securities  (together  with,  if we  decide,  any other  indebtedness  for money
borrowed by us then existing or thereafter  created which is not  subordinate to
the senior debt  securities)  will be secured equally and  proportionately  with
(or, at our option,  prior to) such other  secured  indebtedness  for as long as
such indebtedness is secured. (Section 4.05 of senior debt indenture)

EVENTS OF DEFAULT

      With respect to any series of debt  securities,  "event of default"  means
any of the following:

      o     we fail to pay the interest or any  additional  amount on any debt
            security of that series when due and such  failure  continues  for
            30 days;

      o     we fail to pay the  principal or any premium on any debt  security
            of that series when due;

      o     we fail to comply with any of our other agreements  contained in the
            applicable  indenture  and such failure  continues for 90 days after
            written  notice is given to us of that failure  from the  applicable
            trustee (or to us and such  trustee from the holders of at least 25%
            in  principal  amount of the  outstanding  debt  securities  of that
            series);

      o     certain  events  of  bankruptcy,   insolvency  or   reorganization
            relating to us; and

      o     any  other  event  of  default   provided  with  respect  to  debt
            securities  of that series  that is  described  in the  applicable
            prospectus  supplement  accompanying  this  prospectus.   (Section
            6.01)

      If there is a continuing  event of default with respect to any outstanding
series of debt securities, the applicable trustee or the holders of at least 25%
of the  outstanding  principal  amount of the debt securities of that series may
require us to pay  immediately the principal (or, if the debt securities of that
series are discount  securities,  that portion of the principal amount as may be
specified  in the terms of that series) of and accrued and unpaid  interest,  if
any, on all debt  securities  of that  series.  However,  at any time after such
trustee or the  holders,  as the case may be,  declare  such  acceleration  with
respect to debt securities of any series,  but before the applicable  person has
obtained  a  judgment  or decree for  payment  of the  money,  the  holders of a
majority in principal  amount of the outstanding  debt securities of that series
may, under certain  conditions,  cancel such  acceleration  if we have cured all
events of default  (other than the  non-payment  of  accelerated  principal  and
interest,  if any) with  respect to debt  securities  of that series or all such
events of default  have been  waived as provided  in the  applicable  indenture.
(Section 6.01) For information as to waiver of defaults, see "--Modification and
Waiver."  We refer you to the  prospectus  supplement  relating to any series of
debt  securities  that are discount  securities  for the  particular  provisions
relating to acceleration of the maturity of a portion of the principal amount of
such debt securities triggered by an event of default.

                                      -8-
<PAGE>
      Each indenture  provides that, subject to the duties of the trustee to act
with the required  standard of care if there is a  continuing  event of default,
the trustee need not exercise any of its rights or powers under the indenture at
the request or direction of any of the holders of debt  securities,  unless such
holders have offered to the trustee reasonably  security or indemnity.  (Section
6.04) Subject to such provisions for security or indemnification of each trustee
and certain other conditions, the holders of the majority in principal amount of
the outstanding  debt securities of any series will have the right to direct the
time,  method and place of conducting any proceeding for any remedy available to
the applicable  trustee or exercising any trust or power such trustee holds with
respect to the debt securities of that series. (Section 6.06)

      No  holder  of any debt  security  of any  series  will  have any right to
institute  any  proceeding  with  respect to either  indenture or for any remedy
under the applicable indenture unless:

      o     the applicable  trustee has failed to institute such  proceeding for
            60 days  after  the  holder  has  previously  given to such  trustee
            written notice of a continuing event of default with respect to debt
            securities of that series;

      o     the holders of at least 25% in principal  amount of the  outstanding
            debt  securities  of that  series  have made  written  request,  and
            offered reasonable security or indemnity,  to the applicable trustee
            to institute such proceeding as trustee; and

      o     the  applicable  trustee  has not  received  from the  holders  of a
            majority in principal  amount of the outstanding  debt securities of
            that series a direction inconsistent with such request.
            (Section 6.04)

However, the holder of any debt security will have an absolute and unconditional
right to receive  payment of the  principal  of, and any premium or interest on,
and any  additional  amounts with respect to, such debt security on or after the
date or dates  they are to be paid as  expressed  in such debt  security  and to
institute suit for the enforcement of any such payment. (Section 6.04)

      We are required to furnish to the each trustee  annually a statement as to
the  existence or absence of certain  defaults  under each  indenture.  (Section
4.06) Each indenture  provides that the trustee need not provide holders of debt
securities of any series notice of any default  (other than the  non-payment  of
principal or any premium,  interest or additional amounts) if it considers it in
the  interest  of the holders of debt  securities  of that series not to provide
such notice. (Section 6.07)

CONSOLIDATION AND MERGER

      Each  indenture  provides that we may  consolidate  with or merge into, or
transfer or lease our assets  substantially  as an entirety to,  another  person
without the consent of any debt  security  holders if, along with certain  other
conditions in the indentures:

      o     the person (if other than us) formed by such  consolidation  or into
            which  we  merge  or  which  acquires  or  leases  our  assets  is a
            corporation  organized  and  existing  under the laws of the  United
            States,  any state thereof or the District of Columbia and expressly
            assumes  our  obligations  on the  debt  securities  and  under  the
            applicable indenture; and

      o     after  giving  effect  to such  transaction,  there is no event of
            default,  and no event  which,  after notice or passage of time or
            both, would become an event of default.  (Section 11.01)

DEFEASANCE

      Defeasance and Discharge. Unless the debt securities of any series provide
otherwise,  we may be discharged

                                      -9-
<PAGE>
from any and all  obligations  in respect of the debt  securities of that series
(except for certain  obligations  to register  the  transfer or exchange of debt
securities of that series, to replace stolen,  destroyed, lost or mutilated debt
securities  of that series,  to maintain  paying  agencies,  to  compensate  and
indemnify the  applicable  trustee or to furnish such trustee (if the trustee is
not the registrar) with the names and addresses of holders of debt securities of
that series). This discharge, referred to as defeasance, will occur only if:

            o     we  irrevocably  deposit  with the  applicable  trustee,  in
                  trust,  money  and/or  securities  of the  government  which
                  issues the  currency  in which the debt  securities  of that
                  series are payable or securities  of agencies  backed by the
                  full faith and  credit of such  government,  which,  through
                  the payment of interest  and  principal in  accordance  with
                  their  terms,   will  provide   enough  money  to  pay  each
                  installment  of  principal  of, and any premium and interest
                  on, and any  additional  amounts and any  mandatory  sinking
                  fund  payments  in respect of, the debt  securities  of that
                  series on the  applicable  due dates for those  payments  in
                  accordance with the terms of those debt securities;  and

            o     we deliver to the  applicable  trustee an opinion of counsel
                  confirming  that the holders of the debt  securities of that
                  series will not  recognize  income,  gain or loss for United
                  States  federal  income  tax  purposes  as a result  of such
                  defeasance  and will be  subject  to United  States  federal
                  income tax on the same  amounts  and in the same  manner and
                  at the  same  times  as  would  have  been  the  case if the
                  discharge had not occurred.

That opinion must state that we have received  from, or there has been published
by, the United States  Internal  Revenue  Service a ruling or, since the date of
execution of the applicable indenture, there has been a change in the applicable
United States  federal  income tax law, in any case, in support of that opinion.
(Sections 13.03 and 13.04)

      In  addition,  we may also obtain a  discharge  of either  indenture  with
respect to all debt  securities  issued under such indenture by depositing  with
the  applicable  trustee,  in trust,  enough money to pay all amounts due on the
debt  securities on the date such payments are due or upon  redemption of all of
such debt  securities,  so long as such debt  securities  are by their  terms to
become due and payable within one year or are to be called for redemption within
one year. (Section 12.01)

      Defeasance of Certain Covenants and Certain Events of Default.  Unless the
debt  securities of any series provide  otherwise,  upon compliance with certain
conditions:

     o      we  may  omit  to  comply  with  the   covenants   described   under
            "---Limitation  on Liens under Senior  Indenture"  (with  respect to
            senior debt securities) and "--Consolidation and Merger"; and

     o      any omission to comply with those  covenants  will not constitute an
            event of default with respect to the debt  securities of that series
            ("covenant defeasance"). (Sections 13.03 and 13.04)

The conditions include:

     o      depositing  with the applicable  trustee money and/or  securities of
            the  government   which  issues  the  currency  in  which  the  debt
            securities  of that  series are  payable or  securities  of agencies
            backed by the full  faith  and  credit  of such  government,  which,
            through the payment of interest  and  principal in  accordance  with
            their terms,  will provide  enough money to pay each  installment of
            principal  of, any  premium  and  interest  on,  and any  additional
            amounts and any  mandatory  sinking fund payments in respect of, the
            debt  securities of that series on the due dates for those  payments
            in accordance with the terms of those debt securities; and


                                      -10-
<PAGE>

     o      delivering  to the  applicable  trustee an opinion of counsel to the
            effect that the holders of the debt  securities  of that series will
            not recognize income,  gain or loss for United States federal income
            tax  purposes  as a  result  of the  deposit  and  related  covenant
            defeasance  and will be subject to United States  federal income tax
            on the same  amounts and in the same manner and at the same times as
            would  have  been  the  case if the  deposit  and  related  covenant
            defeasance had not occurred. (Section 13.04)

      Covenants  Defeasance and Certain Other Events of Default.  If we exercise
our option to effect a covenant  defeasance  with respect to the debt securities
of any series as  described  above and the debt  securities  of that  series are
thereafter  declared due and payable  because of an event of default (other than
an event of  default  caused by failing to comply  with the  covenants  that are
defeased),  the  amount  of money  and  securities  we have  deposited  with the
applicable trustee would be sufficient to pay amounts due on the debt securities
of that series on their  respective  due dates but may not be  sufficient to pay
amounts due on the debt  securities  of that series at the time of  acceleration
resulting from such event of default.  However,  we would remain liable for such
payments.

MODIFICATION AND WAIVER

      Each  indenture  provides that we may enter into  supplemental  indentures
with the trustee without the consent of the holders of debt securities to:

      o     document  the fact that a  successor  corporation  has assumed our
            obligations;

      o     add  covenants  or events of  default  for the  protection  of the
            holders of debt securities,

      o     add or change  provisions  as are  necessary  to permit  issuance of
            global   debt    securities   or    unregistered    securities   and
            exchangeability of such debt securities with registered securities,

      o     cure any ambiguity or correct any inconsistency in the indenture;

      o     document the fact that a successor trustee has been appointed; or

      o     establish  the forms and terms of debt  securities  of any series.
            (Section 10.01)

      In addition,  the subordinated  debt indenture  provides that we may enter
into a  supplemental  indenture  with the  trustee  without  the  consent of the
holders of subordinated  debt securities to provide for the terms and conditions
of conversion  into common stock if such terms and conditions are different than
those  provided  in the  subordinated  debt  indenture.  (Section  10.01  of the
subordinated debt indenture)

      We may modify either indenture with the consent of the trustee and holders
of at least a majority in principal  amount of  outstanding  debt  securities of
each series  affected by such  modification.  However,  we may not modify either
indenture  without  the  consent  of the  holders of all then  outstanding  debt
securities of the affected securities to:

      o     change the due date of the  principal  of, or any  installment  of
            principal  of or  interest  on, or payment of  additional  amounts
            with respect to, the debt securities of that series;

      o     reduce the  principal  amount of, or any premium or interest  rate
            on, or any additional  amount with respect to, the debt securities
            of that series;

      o     reduce the amount due and payable upon acceleration or make payments
            thereon  payable in any  currency  other than that  provided in such
            debt security;


                                      -11-
<PAGE>
      o     impair  the right to  institute  suit for the  enforcement  of any
            such payment on or after it is due; or

      o     reduce  the  percentage  in  principal  amount of  outstanding  debt
            securities of any series,  the consent of whose holders is necessary
            to effect any such  modification or amendment of the indenture,  for
            waiver of compliance  with certain  covenants and  provisions in the
            indenture or for waiver of certain defaults.
            (Section 10.02)

In the case of the  subordinated  debt indenture,  no modification may adversely
affect the rights of any holder of senior  indebtedness  under the subordination
provisions  of the  subordinated  debt  indenture  without  the  consent of such
holder. (Section 10.02 of the subordinated debt indenture)

      The holders of a majority in aggregate principal amount of the outstanding
debt  securities  of any series  issued under the senior debt  indenture  may on
behalf of the holders of all debt  securities of that series  waive,  insofar as
that series is concerned,  compliance by us with the restrictive covenant of the
senior debt indenture  described above under "--Limitation on Liens under Senior
Indenture."  (Section 4.07 of senior debt  indenture)  The holders of at least a
majority in principal  amount of the  outstanding  debt securities of any series
may on behalf of the holders of all debt  securities  of that  series  waive any
past default  under  either  indenture  with  respect to that  series,  except a
default in the payment of the  principal  of or any premium or any  interest on,
any debt  security of that  series or in respect of a provision  which under the
indenture  cannot be  modified  or amended  without the consent of the holder of
each outstanding debt security of that affected series. (Section 6.09)

GLOBAL SECURITIES

      The  registered  debt  securities of a series may be issued in the form of
one or more fully registered global securities (each, a "global  security") that
will be deposited with The Depository Trust Company,  New York, New York ("DTC")
or its nominee.  This means that we will not issue  certificates to each holder.
Each global security will be issued to DTC, who will keep a computerized  record
of its participants (for example, your broker) whose clients have purchased debt
securities. The participant will then keep a record of its clients who purchased
the  debt  securities.  Unless  it  is  exchanged  in  whole  or in  part  for a
certificate,  a global  security  may not be  transferred,  except that DTC, its
nominees,  and their successors may transfer a global security as a whole to one
another.

      Beneficial  interests in global securities will be shown on, and transfers
of global  securities will be made only through,  records  maintained by DTC and
its participants.  If you are not a participant in DTC, you may beneficially own
debt securities held by DTC only through a participant.

      The laws of some states require that certain purchasers of securities take
physical  delivery of such  securities in definitive  form. Such limits and laws
may impair the ability to transfer beneficial interests in a global security.

      DTC has provided us the following  information:  DTC is a  limited-purpose
trust company organized under the New York Banking Law, a "banking organization"
within the meaning of the New York  Banking  Law, a member of the United  States
Federal Reserve System, a "clearing  corporation"  within the meaning of the New
York  Uniform  Commercial  Code and a  "clearing  agency"  registered  under the
provisions  of Section 17A of the  Securities  Exchange  Act of 1934.  DTC holds
securities  that  its  participants  deposit  with  DTC.  DTC also  records  the
settlement among participants of securities transactions,  such as transfers and
pledges, in deposited  securities through computerized records for participants'
accounts.  This  eliminates  the  need to  exchange  certificates.  Participants
include  securities  brokers  and  dealers,  banks,  trust  companies,  clearing
corporations and certain other organizations.

      DTC's  book-entry  system  is also  used by  other  organizations  such as
securities  brokers and dealers,  banks and trust  companies that work through a
participant.  The rules that apply to DTC and its  participants are on file with
the SEC.

                                      -12-
<PAGE>
      DTC is owned by a number of its  participants  and by the New York Stock
Exchange,   Inc.,  The  American  Stock   Exchange,   Inc.  and  the  National
Association of Securities Dealers, Inc.

      We will wire principal and interest payments to DTC's nominee.  We and the
trustee under each indenture will treat DTC's nominee as the owner of the global
securities for all purposes.  Accordingly, we, each trustee and any paying agent
will have no direct responsibility or liability to pay amounts due on the global
securities to owners of beneficial interests in the global securities.

      It is DTC's current practice,  upon receipt of any payment of principal or
interest,  to credit  participants'  accounts on the payment  date  according to
their respective  holdings of beneficial  interests in the global  securities as
shown on DTC's records. In addition,  it is DTC's current practice to assign any
consenting or voting  rights to  participants  whose  accounts are credited with
debt  securities  on a record  date,  by using an  omnibus  proxy.  Payments  by
participants  to owners of beneficial  interests in the global  securities,  and
voting by participants,  will be governed by the customary practices between the
participants  and  owners  of  beneficial  interests,  as is the case  with debt
securities  held for the  account of  customers  registered  in  "street  name."
However, payments will be the responsibility of the participants and not of DTC,
either trustee or us.

      So  long  as DTC or  its  nominee  is the  registered  owner  of a  global
security,  DTC or that nominee,  as the case may be, will be considered the sole
owner or holder of the debt  securities  represented by that global security for
all purposes under the  indentures.  Except as set forth in the next  paragraph,
owners of beneficial interests in a global security will not be entitled to have
the debt  securities  represented  by that global  security  registered in their
names,  will not receive or be entitled to receive physical delivery of the debt
securities in definitive  form and will not be considered  the owners or holders
of the debt securities under the indentures.

      We will issue debt  securities  of any series then  represented  by global
securities in definitive form in exchange for those global securities if:

      o     DTC  notifies  us that it is  unwilling  or  unable to  continue  as
            depositary or if DTC ceases to be a clearing agency registered under
            applicable  law and a successor  depositary  is not  appointed by us
            within 90 days; or

      o     we  determine  not to  require  all of the  debt  securities  of a
            series to be represented by a global security.

      If we issue debt  securities in  definitive  form in exchange for a global
security,  an owner of a  beneficial  interest  in the global  security  will be
entitled to have debt  securities  equal in principal  amount to the  beneficial
interest  registered  in its name and will be entitled  to physical  delivery of
those debt securities in definitive  form. Debt securities  issued in definitive
form  will,  except as set forth in the  applicable  prospectus  supplement,  be
issued in  denominations  of $1,000 and any multiple of $1,000 in excess thereof
and will be issued in registered form only, without coupons.

      The debt  securities  of a series may also be issued in the form of one or
more  bearer  global  securities  (a  "bearer  global  security")  that  will be
deposited with a common  depositary  for Euroclear and CEDEL,  or with a nominee
for such depositary  identified in the applicable prospectus supplement relating
to such series. The applicable  prospectus supplement will describe the specific
terms  and   procedures,   including  the  specific   terms  of  the  depositary
arrangement,  with respect to any portion of a series of debt  securities  to be
represented by a bearer global security.

SUBORDINATION UNDER THE SUBORDINATED DEBT INDENTURE

      The  subordinated  debt  securities  issued  under the  subordinated  debt
indenture  will be  subordinate  and  junior in right of  payment  to all senior
indebtedness to the extent provided in the subordinated debt indenture. (Section
14.03 of the  subordinated  debt  indenture)  We may not make  any  payments  on
account of principal or any premium,


                                      -13-
<PAGE>
redemption,  interest or other amount on the subordinated debt securities at any
time when we have defaulted with respect to payment of principal or any premium,
interest, sinking fund or other payment due on the senior indebtedness. (Section
14.02 of the  subordinated  debt indenture) If we make any payment  described in
the foregoing  sentence under the subordinated  debt indenture before all senior
indebtedness is paid in full,  such payment or  distribution  will be applied to
pay off the senior  indebtedness which remains unpaid.  Subject to the condition
that the senior  indebtedness  is paid in full, if any such payments are made on
the senior  indebtedness  as described  above,  the  subordinated  debt security
holders will be subrogated  to the rights of the senior debt  security  holders.
(Section 14.03 of the subordinated debt indenture)

      The subordinated debt indenture defines the term "senior  indebtedness" to
mean:

      o     all  indebtedness of Aon Corporation,  whether  outstanding on the
            date of the  subordinated  debt  indenture or created  later,  for
            money  borrowed  or  otherwise  evidenced  by a  note  or  similar
            instrument  given  in  connection  with  the  acquisition  of  any
            business,  property  or  assets  (other  than  inventory  or other
            similar  property  acquired in the ordinary  course of  business),
            including  securities  or for the  payment of money  relating to a
            capitalized  lease obligation (as defined in the subordinated debt
            indenture);

      o     any  indebtedness  of others  described  in the  preceding  bullet
            point which we have  guaranteed  or which is  otherwise  our legal
            obligation;

      o     any of our indebtedness  under interest rate swaps,  caps or similar
            hedging agreements and foreign exchange contracts, currency swaps or
            similar agreements; and

      o     renewals, extensions, refundings,  restructurings,  amendments and
            modifications  of any  indebtedness or guarantee  described above.
            (Section 1.01 of subordinated debt indenture)

      "Senior indebtedness" does not include:

      o     any of our indebtedness to any of our subsidiaries; or

      o     any  of  our   indebtedness   which  by  its  terms  is  equal  or
            subordinated  to the  subordinated  debt  securities  in rights of
            payment or upon  liquidation.  (Section 1.01 of subordinated  debt
            indenture)

      Because  of the  subordination  provisions  described  above,  some of our
general  creditors  may  recover   proportionately  more  than  holders  of  the
subordinated  debt  securities  if our  assets  are  distributed  as a result of
insolvency or bankruptcy.  The  subordinated  debt  indenture  provides that the
subordination  provisions  will not apply to money and securities  held in trust
pursuant to the satisfaction  and discharge and the legal defeasance  provisions
of the  subordinated  debt indenture.  (Section 14.03 of the  subordinated  debt
indenture) See "-- Defeasance.

      We will set forth (or incorporate by reference) the approximate  amount of
senior indebtedness outstanding as of a recent date in any prospectus supplement
under which we offer to sell subordinated debt securities.

CONVERSION RIGHTS

      We  will  include  in a  supplement  to  this  prospectus  the  terms  and
conditions,  if any, on which debt securities being offered are convertible into
common  stock.  Such terms will include the  conversion  price,  the  conversion
period,  provisions as to whether conversion will be at our option or the option
of the holder,  the events  requiring an adjustment of the conversion  price and
provisions  affecting  conversion  in the event of the  redemption  of such debt
securities.


                                      -14-
<PAGE>
REGARDING THE TRUSTEES

      We have  commercial  deposits and custodial  arrangements  with the senior
indenture trustee and have borrowed money from such trustee in the normal course
of business.  We also have commercial  deposits with the subordinated  indenture
trustee. In addition, we have provided brokerage and other insurance services in
the ordinary course of their respective  businesses for each trustee. The senior
indenture  trustee is also trustee with respect to other debt securities we have
issued.


                  DESCRIPTION OF PREFERRED STOCK AND COMMON STOCK

      Our second restated certificate of incorporation,  as amended,  authorizes
us to issue  300,000,000  shares of common stock, par value $1.00 per share, and
25,000,000  shares of serial  preferred  stock,  par value  $1.00 per share.  In
general,  any  series  of  preferred  stock is  afforded  preferences  regarding
dividends  and  liquidation  rights over the common stock.  The second  restated
certificate of incorporation, as amended, empowers the board of directors of Aon
Corporation,  without approval of the stockholders,  to cause preferred stock to
be issued in one or more  series,  with the numbers of shares of each series and
the rights,  preferences  and limitations of each series to be determined by it.
The description set forth below is only a summary and is not complete.  For more
information  regarding the preferred stock and common stock which may be offered
by this prospectus, please refer to the applicable prospectus supplement and our
second restated certificate of incorporation,  as amended, which is incorporated
by reference as an exhibit to the registration  statement.  In addition,  a more
detailed  description of the common stock may be found in the documents referred
to in the fourth  bullet  point in the second  paragraph of "Where You Find More
Information."

      Because we are a holding company,  the holders of the preferred and common
stock  may  not  receive  assets  of  our   subsidiaries  in  a  liquidation  or
recapitalization  of the  subsidiaries  until the  claims  of our  subsidiaries'
creditors and insurance  policyholders  (in the case of insurance  subsidiaries)
are paid,  except to the extent that we may have recognized  claims against such
subsidiaries.   In  addition,   certain   regulatory  laws  limit  some  of  our
subsidiaries  from  making  payments to us of  dividends  and on loans and other
transfers of funds.

PREFERRED STOCK

      We will in include in a supplement to this  prospectus  the terms relating
to the preferred  stock being  offered.  These terms will include some or all of
the following:

      o     the number of shares;

      o     the designation of the series;

      o     the initial offering price;

      o     any liquidation preference per share;

      o     any dividend rights and the specific terms relating thereto;

      o     whether and upon what terms the shares will be redeemable;

      o     whether  and upon what terms the shares  will have a sinking  fund
            to be used to purchase or redeem the shares of any series;

      o     whether and upon what terms the shares will be convertible;


                                      -15-
<PAGE>
      o     the  relative  priority of such shares to other  classes or series
            of preferred stock with respect to rights and preferences;

      o     any  provisions  for the auction or  remarketing  of the preferred
            stock;

      o     the restrictions,  if any, on the issue or reissue of any additional
            preferred stock,  including  increases or decreases in the number of
            shares  of any  series  subsequent  to the  issue of  shares of that
            series;

      o     any voting rights;

      o     whether or not the shares are or will be listed on any  securities
            exchange;

      o     any  additional  terms,   preferences,   rights,   limitations  or
            restrictions applicable to the shares; and

      o     a discussion of Federal  income tax  considerations  applicable to
            the shares.

COMMON STOCK

      We will include in a supplement to this  prospectus  the terms relating to
the common stock being  offered,  including  the number of shares  offered,  the
initial offering price, market price and dividend information.

      Common stock holders will receive  dividends as may be declared at various
times by the board of directors out of funds legally available for that purpose.
Common stock holders are entitled to one vote per share on all matters submitted
to a vote of stockholders and do not have cumulative voting rights. Common stock
holders will receive,  upon any  liquidation of Aon  Corporation,  all remaining
assets  available  for  distribution  to  stockholders   after  we  satisfy  our
liabilities   relating  to,  and  make  payments  in  respect  of   preferential
obligations  of, any  preferred  stock that may then be issued and  outstanding.
Common stock  holders have no preemptive  rights.  The common stock is listed on
the New York, Chicago and London Stock Exchanges. First Chicago Trust Company is
the registrar and transfer agent for the common stock.

CERTAIN ANTI-TAKEOVER PROVISIONS

      Our second restated  certificate of  incorporation,  as amended,  contains
provisions,  summarized below, that could have the effect of delaying, deferring
or preventing a change of control of Aon Corporation. Because this is a summary,
it does not contain all of the  information  that may be  important  to you. You
should read  carefully the  provisions  of our second  restated  certificate  of
incorporation, as amended, as well as the provisions of any applicable laws.

      Our second restated  certificate of  incorporation,  as amended,  provides
that the approval of a voluntary  liquidation or dissolution of Aon  Corporation
and certain business  combinations  (including mergers,  consolidations,  sales,
leases and exchanges),  requires the affirmative  vote of at least two-thirds of
all of the securities of Aon  Corporation  then entitled to vote at a meeting of
stockholders,  considered  as one class.  Our  second  restated  certificate  of
incorporation,  as amended, also permits our board of directors,  in response to
certain  acquisition  proposals  (including tender or exchange offers,  mergers,
consolidations  and  sales),  to  consider  not only the best  interests  of the
stockholders,  but also  such  other  factors  as the board of  directors  deems
relevant,  including  social,  legal and economic effects upon employees,  field
sales agents,  suppliers,  customers,  policyholders and business.  In addition,
unless the board of directors  decides  otherwise  with respect to any series of
preferred stock, stockholders may not take any action by written consent if such
action is the type that must or may be taken at any annual or special meeting of
stockholders.

      Under  Section 203 of the  Delaware  General  Corporation  Law, we may not
engage in certain  business  combinations  (as defined in such section) with any
interested  stockholders  (as  defined  therein)  for a period  of  three  years


                                      -16-
<PAGE>
following  the date that such  stockholder  became  an  interested  stockholder,
unless:

      o     prior to such date our board of  directors  approved  the business
            combination with the interested stockholder;

      o     the  interested  stockholder  owned at least 85% of our voting stock
            upon   consummation  of  the  transaction   which  resulted  in  the
            stockholder becoming an interested stockholder; or

      o     the business  combination is approved by the  affirmative  vote of
            at least two-thirds of the outstanding voting stock.

Our board of directors has adopted a resolution making the provisions of Section
203 inapplicable to transactions involving Mr. Patrick G. Ryan, our Chairman and
Chief Executive Officer. In addition,  the insurance laws and regulations of the
jurisdictions  in which  our  subsidiaries  do  business  may  impede or delay a
business combination involving Aon Corporation.


                             PLAN OF DISTRIBUTION

    We may sell the securities in any of the following ways:

             o  directly to purchasers;

             o  through agents;

             o  through dealers; or

             o  through  one  or  more   underwriters   or  a   syndicate   of
                underwriters in an underwritten offering.

    The  applicable  prospectus  supplement  will  set  forth  the  names of any
underwriters or agents involved in the sale of the securities  being offered and
any applicable commissions or discounts.

    Underwriters, dealers or agents may offer and sell the securities at a fixed
price or prices,  which may be  changed,  or from time to time at market  prices
prevailing  at the time of sale,  at prices  related to such  prevailing  market
prices or at negotiated  prices.  In connection with the sale of the securities,
underwriters  or agents may be deemed to have received  compensation  from us in
the  form  of  underwriting  discounts  or  commissions  and  may  also  receive
commissions  from  purchasers of the  securities for whom they may act as agent.
Underwriters or agents may sell the securities to or through  dealers,  and such
dealers  may  receive  compensation  in the form of  discounts,  concessions  or
commissions  from the  underwriters or commissions  from the purchasers for whom
they may act as agent.

    If we do not list the  securities  being  offered on a  national  securities
exchange, any underwriters or agents to or through whom such securities are sold
by us for public  offering  and sale may make a market in such  securities,  but
such  underwriters  or agents will not be obligated to do so and may discontinue
any market  making at any time without  notice.  We give no assurances as to the
liquidity of the trading market for any of the securities being offered.


                                      -17-
<PAGE>
    Any underwriters, dealers or agents participating in the distribution of the
securities may be deemed to be  underwriters  and any discounts and  commissions
received by them and any profit realized by them on resale of the securities may
be deemed to be underwriting  discounts and commissions under the Securities Act
of 1933. We may enter into agreements with underwriters, dealers or agents under
which we agree to indemnify against,  or contribute payments made in respect of,
certain civil liabilities incurred by such persons,  including liabilities under
the Securities Act of 1933.

    If so indicated in the applicable prospectus  supplement,  we will authorize
underwriters  or agents to solicit  offers by certain  institutions  to purchase
securities from us pursuant to contracts providing for payment and delivery on a
future date.  These  contracts may be made with  commercial  and savings  banks,
insurance  companies,  pension  funds,  investment  companies,  educational  and
charitable  institutions and others,  but in all cases such institutions must be
approved by us. The obligations of any purchaser under any such contract will be
subject to the condition  that the purchase of the  securities is at the time of
delivery  not  prohibited  under  the laws of the  jurisdiction  to  which  such
purchaser is subject.  The underwriters and such other persons will not have any
responsibility in respect of the validity or performance of such contracts.


                            VALIDITY OF SECURITIES

    The  validity  of the  securities  will be  passed  upon for us by Jerome S.
Hanner,  our Senior  Counsel  and  Assistant  Secretary.  As of May 17, 1999 Mr.
Hanner owned 7,011 shares of Aon  Corporation  common stock and held  restricted
stock  awards of 37,800  shares.  In  addition,  2008 shares of Aon  Corporation
common stock held by its employee stock  ownership plan was  attributable to Mr.
Hanner.


                                   EXPERTS

      The consolidated  financial statements of Aon Corporation  incorporated by
reference  in Aon  Corporation's  Annual  Report  (Form 10-K) for the year ended
December 31, 1998, have been audited by Ernst & Young LLP, independent auditors,
as set forth in their  report  thereon  incorporated  by  reference  therein and
incorporated  herein by reference.  Such consolidated  financial  statements are
incorporated  herein by  reference  in reliance  upon such  report  given on the
authority of such firm as experts in accounting and auditing.

      With respect to the unaudited  condensed  consolidated  interim  financial
information for the three-month periods ended March 31, 1999 and March 31, 1998,
incorporated  by reference in this  prospectus,  Ernst & Young LLP have reported
that they have  applied  limited  procedures  in  accordance  with  professional
standards for a review of such  information.  However,  their  separate  report,
included  in Aon  Corporation's  Quarterly  Report on Form 10-Q for the  quarter
ended March 31, 1999, and incorporated herein by reference, states that they did
not  audit  and  they  do not  express  an  opinion  on that  interim  financial
information.  Accordingly,  the  degree  of  reliance  on their  report  on such
information  should be restricted  considering  the limited nature of the review
procedures  applied.  The independent  auditors are not subject to the liability
provisions of Section 11 of the  Securities  Act of 1933 for their report on the
unaudited interim financial information because that report is not a "report" or
a "part" of the  registration  statement  prepared or  certified by the auditors
within the meaning of Sections 7 and 11 of the Securities Act of 1933.


                                      -18-
<PAGE>
                                    II-10

                                   PART II

                    INFORMATION NOT REQUIRED IN PROSPECTUS


Item 14. Other Expenses of Issuance and Distribution.*


        Securities and Exchange Commission registration fee.......... $139,000
        Accounting fees..............................................   50,000
        Trustee's fees and expenses..................................    3,000
        Printing, distribution, and engraving fees...................   30,000
        Rating agency fees...........................................  260,000
        Legal fees and expenses......................................   50,000
        State qualification fees and expenses .......................    5,000
        Miscellaneous................................................   13,000
                                                                      ---------
               Total................................................. $550,000
                                                                      =========

      *All  amounts  are  estimated  except for the  Securities  and  Exchange
    Commission registration fee.

Item 15. Indemnification of Directors and Officers.

    The  registrant was organized  under and is subject to the Delaware  General
Corporation  Law.  Delaware law provides that officers and directors may receive
indemnification  from  their  corporations  for  certain  actual  or  threatened
lawsuits.  The Delaware law sets out the standard of conduct  which the officers
and  directors  must meet in order to be  indemnified,  the  parties  who are to
determine whether the standard has been met, and the types of expenditures which
will be  indemnified.  Delaware  law further  provides  that a  corporation  may
purchase indemnification insurance, such insurance providing indemnification for
the officers and directors  whether or not the corporation  would have the power
to indemnify them against such liability under the provisions of Delaware law.

    The registrant has adopted an article within its second restated certificate
of incorporation, as amended, which provides that it will indemnify its officers
and directors to the full extent permitted by Delaware law.

    Furthermore,  the registrant is covered by insurance which will reimburse it
within  the  policy  limits  for  amounts  it is  obligated  to pay in  lawsuits
involving  officers  and  directors  serving  in such  capacities  in which  the
damages,  judgments,   settlements,  costs,  charges  or  expenses  incurred  in
connection with the defense of the action,  suit or proceeding are  reimbursable
pursuant to the law and the second  restated  certificate of  incorporation,  as
amended.

    The  registrant  expects that any  underwriting  agreement  or  distribution
agreement  relating  to the  securities  will  provide  for  indemnification  of
directors and officers of the registrant by the  underwriters or agents,  as the
case may be, against certain liabilities.


                                      II-2
<PAGE>
ITEM 16. EXHIBITS.

    Exhibits  marked with an  asterisk  (*) are  incorporated  by  reference  to
documents  previously  filed by the registrant  with the Securities and Exchange
Commission, as  indicated.  All other documents listed are or will be filed with
this registration statement.

      NUMBER                              DESCRIPTION

      1(a)                    Form of Underwriting Agreement.

      *3(a)                   Second Restated  Certificate of  Incorporation  of
                              the  registrant   -incorporated  by  reference  to
                              Exhibit 3(a) to the registrant's  Annual Report on
                              Form 10-K for the year ended  December  31,  1991,
                              file no.
                              1-7933.

      *3(b)                   Certificate  of  Amendment  of  the   registrant's
                              Second Restated  Certificate of  Incorporation  --
                              incorporated  by  reference  to  Exhibit  3 to the
                              registrant's Quarterly Report on Form 10-Q for the
                              quarter ended March 31,
                              1994, file no. 1-7933.

      *3(c)                   By-laws  of the  registrant.  --  incorporated  by
                              reference  to  Exhibit  (d)  to  the  registrant's
                              Annual  Report  on Form  10-K for the  year  ended
                              December 31, 1982, file no. 1-7933.

      *4(a)                   Certificate  of Designation  for the  registrant's
                              Series C Cumulative Preferred Stock - incorporated
                              by  reference  to Exhibit 4.1 to the  registrant's
                              Current Report on Form 8-K dated February 9, 1994,
                              file no.
                              1-7944.

      *4(b)                   Indenture  dated  September  15, 1992  between the
                              registrant and The Bank of New York  (successor to
                              Continental  Bank,  National  Association which is
                              now known as Bank of  America  National  Trust and
                              Savings Association),  as trustee, relating to the
                              registrant's senior debt securities  -incorporated
                              by reference  to Exhibit 4(a) to the  registrant's
                              Current  Report  on Form 8-K dated  September  23,
                              1992, file no. 1-7933.

      *4(c)                   Form of senior debt  securities -- incorporated by
                              reference  to  Exhibit  4(b)  to the  registrant's
                              Current  Report  on Form 8-K dated  September  23,
                              1992, file no.
                              1-7933.

      *4(d)                   Resolutions establishing terms of 6.875% Notes Due
                              1999 and 7.40% Notes Due 2002 --  incorporated  by
                              reference  to  Exhibit  4(d)  to the  registrant's
                              Annual  Report  on Form  10-K for the  year  ended
                              December, 31,
                              1992, file no. 1-7933.

      *4(e)                   Resolutions  establishing the terms of 6.70% Notes
                              Due 2003 and 6.30% Notes Due 2004 --  incorporated
                              by  reference  to  Exhibits  4(c)  and 4(d) of the
                              registrant's  Annual  report  on Form 10-K for the
                              year ended December 31, 1993, file no. 1-7933.

      4(f)                    Form  of  Indenture   relating  to  the  Company's
                              subordinated debt securities.


                                      II-2
<PAGE>
      4(g)                    Form of subordinated debt securities.  The form or
                              forms of the  subordinated  debt  securities  with
                              respect to each particular  offering will be filed
                              as   an   exhibit    subsequently    included   or
                              incorporated by reference herein.

      *4(h)                   Junior Subordinated  Indenture dated as of January
                              13, 1997  between the  registrant  and The Bank of
                              New York, as trustee --  incorporated by reference
                              to Exhibit 4.1 of the registrant's Amendment No. 1
                              to   Registration   Statement   on  Form  S-4  No.
                              333-21237  dated  March  27,  1997  (the  "Capital
                              Securities Registration").

      *4(i)                   First  Supplemental  Indenture dated as of January
                              13, 1997  between the  registrant  and the Bank of
                              New York, as trustee --  incorporated by reference
                              to   Exhibit   4.2  of  the   Capital   Securities
                              Registration.

      *4(j)                   Certificates   of  Trust  of  Aon   Capital  A  --
                              incorporated  by  reference  to Exhibit 4.3 of the
                              Capital Securities Registration.

      *4(k)                   Amended  and  Restated  Trust   Agreement  of  Aon
                              Capital A dated as of January  13,  1997 among the
                              registrant, as depositor, The Bank of New York, as
                              property trustee, The Bank of New York (Delaware),
                              as Delaware trustee,  the administrative  trustees
                              named therein and the holders,  from time to time,
                              of  the  capital  securities  --  incorporated  by
                              reference to Exhibit 4.5 of the Capital Securities
                              Registration.

      *4(l)                   Capital Securities Guarantee Agreement dated as of
                              January 13, 1997  between the  registrant  and The
                              Bank  of  New  York,   as  guarantee   trustee  --
                              incorporated  by  reference  to Exhibit 4.8 of the
                              Capital Securities
                              Registration.

      *4(m)                   Capital   Securities   Exchange  and  Registration
                              Rights  Agreement  dated as of  January  13,  1997
                              among the  registrant,  Aon  Capital A and  Morgan
                              Stanley & Co.  Incorporated  and Goldman,  Sachs &
                              Co. --  incorporated  by reference to Exhibit 4.10
                              of the Capital Securities Registration.

      *4(n)                   Debenture   Exchange   and   Registration   Rights
                              Agreement  dated as of January  13, 1997 among the
                              registrant, Aon Capital A and Morgan Stanley & Co.
                              Incorporated   and   Goldman,   Sachs  &  Co.   --
                              incorporated  by  reference to Exhibit 4.11 of the
                              Capital Securities Registration.

      *4(o)                   Guarantee   Exchange   and   Registration   Rights
                              Agreement  dated as of January  13, 1997 among the
                              registrant, Aon Capital A and Morgan Stanley & Co.
                              Incorporated   and   Goldman,   Sachs  &  Co.   --
                              incorporated  by  reference to Exhibit 4.12 of the
                              Capital Securities Registration.

      5                       Opinion of Jerome S.  Hanner,  Senior  Counsel and
                              Assistant Secretary of the registrant.


      *12(a)                  Statement  of  computation  of ratio of earning to
                              fixed  charges --  


                                      II-3
<PAGE>
                              incorporated  by reference to Exhibit 12(a) to the
                              registrant's  Annual  Report  on Form 10-K for the
                              year  ended  December  31,  1998 (the  "1998  Form
                              10-K")  and to Exhibit  12(a) to the  registrant's
                              Quarterly  Report  on Form  10-Q  for the  quarter
                              ended March 31, 1999 (the "1999 First Quarter Form
                              10-Q"), file no. 1-7944.

      *12(b)                  Statement of  computation  of ratio of earnings to
                              combined   fixed  charges  and   preferred   stock
                              dividends --  incorporated by reference to Exhibit
                              12(b) to the 1998 Form 10-K and to  Exhibit  12(b)
                              to the 1999  First  Quarter  Form  10-Q,  file no.
                              1-7944.

      23(a)                   Consent of Jerome S. Hanner  (included  in Exhibit
                              5).

      23(b)                   Consent of Ernst & Young LLP.

      23(c)                   Acknowledgment of Ernst & Young LLP.

      24                      Powers of Attorney.

      25(a)                   Form   T-1    Statement   of    Eligibility    and
                              Qualification  under  the Trust  Indenture  Act of
                              1939  of The  Bank  of New  York  relating  to the
                              senior debt securities.

      25(b)                   Form   T-1    Statement   of    Eligibility    and
                              Qualification  under  the Trust  Indenture  Act of
                              1939  of  U.S.  Bank  Trust  National  Association
                              relating to the subordinated debt securities.

ITEM 17. UNDERTAKINGS.

The registrant hereby undertakes:

      (1) To file,  during any period in which offers or sales are being made of
the  securities   registered   hereby,  a   post-effective   amendment  to  this
registration statement:

           (i) To include any prospectus required by Section 10(a)(3) of the
        Securities Act of 1933;

           (ii) To reflect in the  prospectus  any facts or events arising after
        the  effective  date of the  registration  statement (or the most recent
        post-effective   amendment  thereof)  which,   individually  or  in  the
        aggregate,  represent a fundamental  change in the information set forth
        in  the  registration  statement.  Notwithstanding  the  foregoing,  any
        increase  or  decrease  in volume of  securities  offered  (if the total
        dollar  value of  securities  offered  would not  exceed  that which was
        registered)  and any deviation from the low or high end of the estimated
        maximum  offering range may be reflected in the form of prospectus filed
        with the Commission  pursuant to Rule 424(b) if, in the  aggregate,  the
        changes in volume and price  represent no more than a 20 percent  change
        in the maximum aggregate offering price set forth in the "Calculation of
        Registration Fee" table in the effective registration statement;

           (iii) To include any material information with respect to the plan of
        distribution not previously  disclosed in the registration  statement or
        any material change to such information in the registration statement;


                                      II-4
<PAGE>
    provided,  however,  that the  undertakings  set forth in paragraphs (i) and
    (ii) above do not apply if the  information  required  to be  included  in a
    post-effective  amendment  by those  paragraphs  is  contained  in  periodic
    reports filed with or furnished to the Commission by the registrant pursuant
    to Section 13 or Section 15(d) of the  Securities  Exchange Act of 1934 that
    are incorporated by reference in the registration statement.

    (2) That, for the purpose of determining  any liability under the Securities
Act of 1933,  each  such  post-effective  amendment  shall be deemed to be a new
registration  statement  relating to the  securities  offered  therein,  and the
offering of such  securities at that time shall be deemed to be the initial bona
fide offering thereof.

      (3) To remove from registration by means of a post-effective amendment any
of the securities being registered which remain unsold at the termination of the
offering.

    (4) That, for purposes of determining any liability under the Securities Act
of 1933, each filing of the registrant's annual report pursuant to Section 13(a)
or Section 15(d) of the Securities  Exchange Act of 1934 (and, where applicable,
each filing of an employee  benefit  plan's  annual  report  pursuant to Section
15(d) of the Securities  Exchange Act of 1934) that is incorporated by reference
in the registration statement shall be deemed to be a new registration statement
relating to the securities offered therein,  and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

    Insofar as indemnification  for liabilities arising under the Securities Act
of 1933 may be permitted to directors,  officers and controlling  persons of the
registrant  pursuant  to the  provisions  described  under  Item  15  above,  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 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 director,  officer or  controlling
person of the  registrant  in the  successful  defense  of any  action,  suit or
proceeding)  is  asserted by such  director,  officer or  controlling  person in
connection with the securities being registered,  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 Act and will
be governed by the final adjudication of such issue.


                                      II-5
<PAGE>
                                  SIGNATURES

    Pursuant to the requirements of the Securities Act of 1933, as amended,  the
registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing this  registration  statement on Form S-3 and has
duly  caused  this  registration  statement  to be signed  on its  behalf by the
undersigned,  thereunto  duly  authorized,  in the  City of  Chicago,  State  of
Illinois, as of May 18, 1999.


                                        Aon CORPORATION



                                        By:             *
                                           --------------------------------
                                           Patrick G. Ryan
                                           Chairman and Chief Executive Officer

    Pursuant  to  the   requirements   of  the  Securities  Act  of  1933,  this
registration  statement  has been signed below by the  following  persons in the
capacities indicated as of May 18, 1999.

                SIGNATURE                                TITLE
                ---------                                -----

                                              
                    *                         Chairman and Chief Executive    
     ----------------------------                 Officer and Director
             Patrick G. Ryan                 (Principal Executive Officer)
                                                        
                    *
     ----------------------------                       Director
            Daniel T. Carroll                           


                    *
     ----------------------------                       Director
             Franklin A. Cole


                    *
     ----------------------------                       Director
            Edgar D. Jannotta


                    *
     ----------------------------                       Director
             Lester B. Knight


                    *
     ----------------------------                       Director
              Perry J. Lewis


                    *
     ----------------------------                       Director
            Andrew J. McKenna


                    *
     ----------------------------                       Director
             Newton N. Minow


                    *
     ----------------------------                       Director
           Richard C. Notebaert


                                      II-6
<PAGE>
                                              
                    *                         President and Chief Operating
     ----------------------------                       Officer
          Michael D. O'Halleran                       and Director



                    *
     ----------------------------                       Director
            Donald S. Perkins


                    *
     ----------------------------                       Director
           John W. Rogers, Jr.


                    *
     ----------------------------                       Director
            George A. Schaefer


        /s/ RAYMOND I. SKILLING
     ----------------------------                       Director
           Raymond I. Skilling


                    *
     ----------------------------                       Director
              Fred L. Turner


                    *
     ----------------------------                       Director
             Arnold R. Weber


                    *
     ----------------------------                       Director
              Carolyn Y. Woo


                                              
                    *                         Executive Vice President and   
     ----------------------------                Chief Financial Officer
             Harvey N. Medvin              (Principal Financial and Accounting
                                                        Officer)


      * By: /s/ RAYMOND I. SKILLING
           ----------------------------
              Raymond I. Skilling
               Attorney-in-Fact


                                      II-7
<PAGE>
                                EXHIBIT INDEX
                          TO REGISTRATION STATEMENT
                                 ON FORM S-3

                               Aon CORPORATION


EXHIBIT NUMBER                DESCRIPTION OF EXHIBIT
- --------------                ----------------------

      1(a)                    Form of Underwriting Agreement.

      *3(a)                   Second Restated  Certificate of  Incorporation  of
                              the  registrant  --  incorporated  by reference to
                              Exhibit 3(a) to the registrant's  Annual Report on
                              Form 10-K for the year ended December 31,
                              1991, file no. 1-7933.

      *3(b)                   Certificate  of  Amendment  of  the   registrant's
                              Second  Restated   Certificate  of   Incorporation
                              -incorporated  by  reference  to  Exhibit 3 to the
                              registrant's Quarterly Report on Form 10-Q for the
                              quarter ended March 31, 1994, file no.
                              1-7933.

      *3(c)                   By-laws of the registrant.  --  incorporated by
                              reference to Exhibit (d) to the registrant's
                              Annual Report on Form 10-K for the year ended
                              December 31, 1982, file no. 1-7933.

      *4(a)                   Certificate  of Designation  for the  registrant's
                              Series C Cumulative  Preferred Stock  incorporated
                              by  reference  to Exhibit 4.1 to the  registrant's
                              Current Report on Form 8-K dated February 9, 1994,
                              file no. 1-7944.

      *4(b)                   Indenture  dated  September  15, 1992  between the
                              registrant and The Bank of New York  (successor to
                              Continental  Bank,  National  Association which is
                              now known as Bank of  America  National  Trust and
                              Savings Association),  as trustee, relating to the
                              registrant's    senior    debt    securities    --
                              incorporated  by  reference to Exhibit 4(a) to the
                              registrant's  Current  Report  on Form  8-K  dated
                              September 23, 1992, file no. 1-7933.

      *4(c)                   Form of senior debt securities -- incorporated
                              by reference to Exhibit 4(b) to the
                              registrant's Current Report on Form 8-K dated
                              September 23, 1992, file no. 1-7933.

      *4(d)                   Resolutions establishing terms of 6.875% Notes Due
                              1999 and  7.40%  Notes Due 2002  -incorporated  by
                              reference  to  Exhibit  4(d)  to the  registrant's
                              Annual  Report  on Form  10-K for the  year  ended
                              December, 31, 1992, file no.
                              1-7933.

      *4(e)                   Resolutions  establishing the terms of 6.70% Notes
                              Due 2003 and 6.30% Notes Due 2004 -incorporated by
                              reference  to  Exhibits   4(c)  and  4(d)  of  the
                              registrant's  Annual  report  on Form 10-K for the
                              year ended December 31, 1993, file
                              no. 1-7933.


                                      II-8
<PAGE>
      4(f)                    Form of Indenture relating to the  Company's
                              subordinated debt securities.

      4(g)                    Form of subordinated debt securities.  The form or
                              forms of the  subordinated  debt  securities  with
                              respect to each particular  offering will be filed
                              as   an   exhibit    subsequently    included   or
                              incorporated by reference herein.

      *4(h)                   Junior Subordinated Indenture dated as of
                              January 13, 1997 between the registrant and The
                              Bank of New York, as trustee -- incorporated by
                              reference to Exhibit 4.1 of the registrant's
                              Amendment No. 1 to Registration Statement on
                              Form S-4 No. 333-21237 dated March 27, 1997
                              (the "Capital Securities Registration").

      *4(i)                   First  Supplemental  Indenture dated as of January
                              13, 1997  between the  registrant  and the Bank of
                              New York, as trustee --  incorporated by reference
                              to   Exhibit   4.2  of  the   Capital   Securities
                              Registration.

      *4(j)                   Certificates   of   Trust   of   Aon   Capital   A
                              -incorporated  by  reference to Exhibit 4.3 of the
                              Capital Securities Registration.

      *4(k)                   Amended and Restated Trust Agreement of Aon
                              Capital A dated as of January 13, 1997 among
                              the registrant, as depositor, The Bank of New
                              York, as property trustee, The Bank of New York
                              (Delaware), as Delaware trustee, the
                              administrative trustees named therein and the
                              holders, from time to time, of the capital
                              securities -- incorporated by reference to
                              Exhibit 4.5 of the Capital Securities
                              Registration.

      *4(l)                   Capital Securities Guarantee Agreement dated as of
                              January 13, 1997  between the  registrant  and The
                              Bank   of   New   York,   as   guarantee   trustee
                              -incorporated  by  reference to Exhibit 4.8 of the
                              Capital Securities Registration.

      *4(m)                   Capital Securities Exchange and Registration
                              Rights Agreement dated as of January 13, 1997
                              among the registrant, Aon Capital A and Morgan
                              Stanley & Co. Incorporated and Goldman, Sachs &
                              Co. -- incorporated by reference to Exhibit
                              4.10 of the Capital Securities Registration.

      *4(n)                   Debenture Exchange and Registration Rights
                              Agreement dated as of January 13, 1997 among
                              the registrant, Aon Capital A and Morgan
                              Stanley & Co. Incorporated and Goldman, Sachs &
                              Co. -- incorporated by reference to Exhibit
                              4.11 of the Capital Securities Registration.

      *4(o)                   Guarantee Exchange and Registration Rights
                              Agreement dated as of January 13, 1997 among
                              the registrant, Aon Capital A and Morgan
                              Stanley & Co. Incorporated and Goldman, Sachs &
                              Co. -- incorporated by reference to Exhibit
                              4.12 of the Capital Securities Registration.

      5                       Opinion of Jerome S. Hanner, Senior Counsel and
                              Assistant Secretary of the registrant.


                                      II-9
<PAGE>
      *12(a)                  Statement  of  computation  of ratio of earning to
                              fixed  charges --  incorporated  by  reference  to
                              Exhibit 12(a) to the registrant's Annual Report on
                              Form 10-K for the year  ended  December  31,  1998
                              (the "1998 Form 10-K") and to Exhibit 12(a) to the
                              registrant's Quarterly Report on Form 10-Q for the
                              quarter  ended  March 31,  1999 (the  "1999  First
                              Quarter Form 10-Q"), file no. 1-7944.

      *12(b)                  Statement of  computation  of ratio of earnings to
                              combined   fixed  charges  and   preferred   stock
                              dividends --  incorporated by reference to Exhibit
                              12(b) to the 1998 Form 10-K and to  Exhibit  12(b)
                              to the 1999  First  Quarter  Form  10-Q,  file no.
                              1-7944.

      23(a)                   Consent of Jerome S. Hanner  (included  in Exhibit
                              5).

      23(b)                   Consent of Ernst & Young LLP.

      23(c)                   Acknowledgment of Ernst & Young LLP.

      24                      Powers of Attorney

      25(a)                   Form T-1 Statement of Eligibility and
                              Qualification under the Trust Indenture Act of
                              1939 of The Bank of New York.

      25(b)                   Form   T-1    Statement   of    Eligibility    and
                              Qualification  under  the Trust  Indenture  Act of
                              1939  of  U.S.  Bank  Trust  National  Association
                              relating to the subordinated debt securities.

Exhibits marked with an asterisk (*) are  incorporated by reference to documents
previously filed by the registrant with the Securities and Exchange  Commission,
as indicated.


                                     II-10

                                                                    Exhibit 1(a)
                                                                               
                                 Aon CORPORATION
                                   SECURITIES
                     UNDERWRITING AGREEMENT BASIC PROVISIONS
                     ---------------------------------------

                                                            -------------, -----

                  1. Introductory.  Aon Corporation, a Delaware corporation (the
"Company"), proposes to issue and sell from time to time senior debt securities,
subordinated   debt  securities,   convertible   subordinated   debt  securities
(collectively,  "Debt Securities"),  preferred stock and common stock registered
under the  registration  statement  referred  to in  Section  2(a)  ("Registered
Securities").  If specified in a Terms  Agreement  referred to in Section 3, the
Company  proposes to grant to the  underwriters an option to purchase up to that
amount of Registered  Securities  specified in such Terms Agreement (the "Option
Securities").  The Debt Securities will be issued under  indentures (as they may
be  amended  or  supplemented  from  time  to  time,  the  "Indentures"),   more
particularly  described  in a  Terms  Agreement,  between  the  Company  and the
trustees named therein (the "Trustee(s)"),  in one or more series,  which series
may vary as to interest rates, maturities, redemption provisions, selling prices
and  other  terms,  with all such  terms for any  particular  series of the Debt
Securities  being  determined at the time of sale.  The preferred  stock will be
issued  in one or more  series,  which  series  may  vary as to  voting  rights,
dividends, optional and mandatory redemption provisions,  liquidation preference
and  conversion  provisions  and  other  terms,  with  all  such  terms  for any
particular  series or issue of the preferred stock being  determined at the time
of issue. The Registered  Securities will be sold pursuant to a Terms Agreement,
for resale in accordance with terms of offering determined at the time of sale.

                  The   Registered   Securities   (together   with  the   Option
Securities)  involved in any such  offering are  hereinafter  referred to as the
"Securities."  The firm or firms  which  agree to purchase  the  Securities  are
hereinafter  referred  to as the  "Underwriters"  of  such  Securities,  and the
representative or  representatives  of the Underwriters,  if any, specified in a
Terms Agreement are hereinafter referred to as the "Representatives";  provided,
however,  that if the Terms Agreement does not specify any representative of the
Underwriters,  the term "Representatives," as used in this Agreement (other than
in  Section  2(b) and 7 and the  second  sentence  of  Section 3) shall mean the
Underwriters.
                  2. Representations,  Warranties and Agreements of the Company.
The Company represents warrants and agrees that:

                  (a) A  registration  statement on Form S-3 with respect to the
Registered  Securities and more  particularly  described in the Terms  Agreement
relating to the Securities has (i) been

                                       -1-

<PAGE>
prepared by the Company in conformity  with the  requirements  of the Securities
Act of 1933, as amended (the  "Securities  Act"),  and the rules and regulations
(the "Rules and  Regulations")  of the Securities and Exchange  Commission  (the
"Commission")  thereunder  and (ii) been  filed  with the  Commission  under the
Securities  Act.  Such  registration  statement has become  effective  under the
Securities Act. If any post-effective  amendment to such registration  statement
has been filed with the  Commission  prior to the date of the  applicable  Terms
Agreement,  the most recent such  amendment has been  declared  effective by the
Commission.  Copies of such  registration  statement and any amendments  thereto
have been  delivered  by the  Company  to the  Representatives.  As used in this
Agreement,  "Effective  Time"  means  the date  and the  time as of  which  such
registration statement, or the most recent post-effective  amendment thereto, if
any, was declared  effective by the Commission;  "Effective Date" means the date
of the Effective Time;  "Preliminary  Prospectus" means each prospectus included
in  such  registration  statement,  or  amendments  thereof,  before  it  became
effective under the Securities Act and any prospectus  filed with the Commission
by the Company with the consent of the  Representatives  pursuant to Rule 424(a)
of the Rules and Regulations;  "Registration  Statement" means such registration
statement,   as  amended  at  the  Effective  Time,  including  all  information
incorporated by reference  therein and, if the date of the Terms Agreement is on
or before the  fifteenth  business day after the Effective  Date,  including all
information contained in the final prospectus filed with the Commission pursuant
to Rule 424(b) of the Rules and  Regulations  in  accordance  with  Section 4(a)
hereof and deemed to be a part of the registration statement as of the Effective
Time  pursuant to paragraph  (b)of Rule 430A of the Rules and  Regulations;  and
"Prospectus"  means such final  prospectus,  as first filed with the  Commission
pursuant to Rule 424(b)(1) or (4) of the Rules and  Regulations  or, if the date
of the Terms  Agreement is after the fifteenth  business day after the Effective
Date,  pursuant to Rule 424(b)(2) or (5), as  supplemented  as  contemplated  by
Section 3 to  reflect  the  terms of the  Securities  and the terms of  offering
thereof,   including  all  documents  incorporated  by  reference  therein.  The
Commission  has not issued any order  preventing  or  suspending  the use of any
Preliminary Prospectus.

                  (b)  On  the  Effective  Date,  such  Registration   Statement
complied in all material  respects with the Securities  Act, the Trust Indenture
Act of 1939, as amended (the "Trust  Indenture  Act"),  if  applicable,  and the
applicable rules and regulations  under said Acts, and did not contain an untrue
statement  of a material  fact or omit to state a material  fact  required to be
stated therein or necessary to make the statements therein not

                                       -2-

<PAGE>
misleading,  and on the date of the applicable Terms Agreement,  and at the time
of filing of the Prospectus pursuant to Rule 424(b)(1) and (4), the Registration
Statement  and the  Prospectus  will comply in all  material  respects  with the
Securities Act, the Trust Indenture Act, if applicable, and the applicable rules
and regulations  under said Acts, and neither of such documents will include any
untrue  statement of a material fact or omit to state any material fact required
to be stated therein or necessary to make the statements therein not misleading;
provided  that no  representation  or  warranty  is  made as to (i)  information
contained in or omitted from the  Registration  Statement or the  Prospectus  in
reliance  upon and in  conformity  with  written  information  furnished  to the
Company  through  the  Representatives  by  or  on  behalf  of  any  Underwriter
specifically for inclusion therein; and the Indenture,  if any, described in the
Term Agreement will comply in all material respects with the Trust Indenture Act
and the applicable rules and regulations thereunder.

                  (c) The Company and each of its Significant  Subsidiaries  (as
defined in Section 13) have been duly  incorporated  and are validly existing as
corporations in good standing under the laws of their  respective  jurisdictions
of incorporation,  are duly qualified to do business and are in good standing as
foreign corporations in each jurisdiction in which their respective ownership or
lease of property or the conduct of their  respective  businesses  requires such
qualification  and in which  the  failure  to so  qualify  would  reasonably  be
expected to have material  adverse  effect on the Company and its  subsidiaries,
taken as a whole,  and have all corporate  power and authority  necessary to own
their  respective  properties  and to conduct the  businesses  in which they are
engaged.

                  (d)  All of  the  issued  shares  of  capital  stock  of  each
Significant  Subsidiary have been duly and validly authorized and issued and are
fully paid,  non-assessable and are owned directly or indirectly by the Company,
free and clear of all liens, encumbrances, equities or claims.

                  (e) The  execution,  delivery  and  performance  of the  Terms
Agreement  (including the  provisions of this  Agreement) by the Company and the
consummation of the transactions  contemplated hereby and thereby and compliance
by the Company with the  provisions of the Indenture,  if any,  described in the
Terms  Agreement  and the  Securities  will  not  contravene  any  provision  of
applicable law or the certificate of  incorporation or by-laws of the Company or
any of its subsidiaries,  or any agreement or other instrument  binding upon the
Company or any of its subsidiaries

                                       -3-

<PAGE>
(as defined in Section 13) that is material to the Company and its subsidiaries,
taken as a whole,  or any judgment,  order or decree of any  governmental  body,
agency or court  having  jurisdiction  over the Company or any  subsidiary;  and
except for the  registration of the Securities under the Securities Act and such
consents,  approvals,  authorizations,  registration or qualifications as may be
required under the Trust  Indenture Act or the Securities  Exchange Act of 1934,
as amended (the "Exchange Act"), and applicable state or foreign securities laws
in  connection  with the  purchase and  distribution  of the  securities  by the
Underwriters,  no  consent,  approval,  authorization  or order of, or filing or
registration with, any such court or governmental agency or body is required for
the execution,  delivery and performance of the Terms  Agreement  (including the
provisions of this Agreement) and the Indenture,  if any, described in the Terms
Agreement, by the Company and the consummation of the transactions  contemplated
hereby and thereby.


                  (f) No holders of the Company's  securities have  registration
rights with respect thereto other than the registration  rights granted pursuant
to ________________________ (collectively, the "Registration Rights Agreements")
and all  such  registration  rights  have  been  waived,  or are  not  otherwise
exercisable, with respect to the Registration Statement.

                  (g) The Indenture,  if any,  described in the Terms  Agreement
has been duly  authorized  and,  when  executed  by the proper  officers  of the
Company  (assuming the due  execution and delivery  thereof by the Trustee under
the  Indenture)  and delivered by the Company,  will have been duly executed and
delivered  by the  Company and the  Trustee  and will  constitute  the valid and
legally  binding  obligation of the Company,  enforceable in accordance with its
terms except in each case as such  enforceability  may be limited by  applicable
bankruptcy,  moratorium,  insolvency,   reorganization  or  other  similar  laws
affecting or limiting the enforcement of creditors'  rights generally and by the
effect  of  general  principles  of  equity  (whether  such   enforceability  is
considered  in a  proceeding  in equity or at law) or by an implied  covenant of
good faith and fair dealing; the Debt Securities, if any, described in the Terms
Agreement  have been duly  authorized,  and,  upon payment  therefor as provided
herein, will be validly issued and outstanding and will constitute the valid and
legally binding obligations of the Company, enforceable in accordance with their
terms and entitled to the benefits of the Indenture  except in each case as such
enforceability may be limited by applicable bankruptcy,  moratorium, insolvency,
fraudulent  conveyance,  reorganization  or other  similar  laws  relating to or
affecting the  enforcement of creditors'  rights  generally and by the effect of
general

                                       -4-
<PAGE>
principles of equity (whether such  enforceability is considered in a proceeding
in equity or at law) or by an implied  covenant of good faith and fair  dealing;
if any  Securities  to be issued are  convertible,  the  shares of common  stock
issuable upon conversion thereof are duly and validly authorized, have been duly
reserved for issuance upon  conversion of the  Securities  and, when issued upon
the conversion of the Securities,  will be duly and validly  issued,  fully paid
and  non-assessable;  the common stock and preferred stock, if any, described in
the Terms  Agreement have been duly and validly  authorized and, when issued and
paid pursuant to the Terms Agreement, will be fully paid and non-assessable;  no
further  approval or authority of the  stockholders or the Board of Directors of
the Company  will be required for the  issuance  and sale of the  Securities  as
contemplated  herein  or the  issuance  of  the  shares  of  common  stock  upon
conversion  of the  Securities;  and  the  Securities,  the  Indenture,  if any,
described  in the Terms  Agreement  and the capital  stock of the  Company  will
conform to the descriptions thereof contained in the Registration  Statement and
the Prospectus.

                  (h) Other than as set forth or contemplated in the Prospectus,
there has not occurred any material  adverse change,  or any  development  which
would be  reasonably  likely to  result in a  material  adverse  change,  in the
condition, financial or otherwise, or in the earnings, business or operations of
the Company and its subsidiaries, taken as a whole.

                  (i) There are no legal or governmental proceedings pending or,
to the actual knowledge of the Company,  threatened, to which the Company or any
of its subsidiaries is a party or to which any property of the Company or any of
its  subsidiaries  is  subject,  that  are  required  to  be  described  in  the
Registration  Statement  or the  Prospectus  and  are not so  described,  or any
statutes,  regulations,  contracts  or other  documents  that are required to be
described in the  Registration  Statement or the Prospectus or to be filed as an
exhibit  to the  Registration  Statement  that  are not  described  or  filed as
required.

                  (j) Each of the Company and its subsidiaries has all necessary
consents,  authorizations,  approvals,  orders,  certificates and permits of and
from, and has made all declarations and filings with, all federal,  state, local
and other governmental  authorities,  all self-regulatory  organizations and all
courts and other  tribunals,  to own, lease,  license and use its properties and
assets and to conduct its business in the manner  described  in the  Prospectus,
except  to the  extent  that the  failure  to  obtain  or file  would not have a
material adverse effect on the Company and its subsidiaries, taken as a whole.


                                       -5-
<PAGE>
                  3.   Purchase   and   Offering  of  the   Securities   by  the
Underwriters. The obligation of the Underwriters to purchase the Securities will
be evidenced by an exchange of a telegram, telex or other written communications
("Terms  Agreement") at each time the Company determines to sell the Securities.
Each Terms  Agreement will be in the form of Annex II(A) or (B) attached  hereto
and will  incorporate by reference the provisions of this  Agreement,  except as
otherwise  provided  therein,  and will  specify the firm or firms which will be
Underwriters,  the names of any  Representatives,  the amount to be purchased by
each Underwriter,  the purchase price to be paid by the Underwriters and certain
terms  of the  Securities  and  whether  any of the  Securities  may be  sold to
institutional  investors  pursuant  to Delayed  Delivery  Contracts  (as defined
below).  The Terms Agreement will also specify the time and date of delivery and
payment  (such  time and date,  or such  other  time not later  than  seven full
business  days  thereafter as the  Representatives  and the Company agree as the
time for payment and delivery,  being herein and in the Terms Agreement referred
to as the "Closing Date"),  the place of delivery and payment and any details of
the  terms of  public  offering  that  should  be  reflected  in the  prospectus
supplement  relating to the offering of the  Securities.  The obligations of the
Underwriters  to purchase the  Securities  will be several and not joint.  It is
understood that the Underwriters propose to offer the Securities for sale as set
forth in the Prospectus.  Unless otherwise provided in the Terms Agreement,  the
Debt Securities,  if any, delivered to the Underwriters on the Closing Date will
be in definitive fully registered form, in such  denominations and registered in
such names as the Underwriters may request.

                  If  specified  in a  Terms  Agreement,  on  the  basis  of the
representations,  warranties and covenants herein contained,  and subject to the
terms and  conditions  herein set  forth,  the  Company  grants an option to the
several Underwriters to purchase, severally and not jointly, up to the amount of
the Option  Securities  as shall be  specified in the Terms  Agreement  from the
Company  at the same  price as the  Underwriters  shall  pay for the  Registered
Securities.  Said option may be exercised only to cover  over-allotments  in the
sale of the Registered  Securities by the  Underwriters  and may be exercised in
whole or in part at any time on or before  the  thirtieth  day after the date of
the Terms Agreement upon written or telegraphic notice by the Representatives to
the Company  setting  forth the amount of the Option  Securities as to which the
several  Underwriters are exercising the option. The amount of Option Securities
to be purchased by each  Underwriter  shall be the same  percentage of the total
amount of the Option Securities to be purchased by the

                                       -6-
<PAGE>
several  Underwriters  as  such  Underwriter  is  purchasing  of the  Registered
Securities,   as  adjusted  by  the   Representatives  in  such  manner  as  the
Representatives deem advisable to avoid fractional shares/units.

                  If the Terms  Agreement  provides for the sales of  Securities
pursuant to delayed delivery contracts,  the Company authorizes the Underwriters
to solicit offers to purchase  Securities pursuant to delayed delivery contracts
substantially  in the  form  of  Annex  I  attached  hereto  ("Delayed  Delivery
Contract")  with such changes  therein as the Company may  authorize or approve.
Delayed  Delivery  Contracts  are  only  to  be  with  institutional  investors,
including  commercial and savings  banks,  insurance  companies,  pension funds,
investment companies and educational and charitable institutions. On the Closing
Date the  Company  will pay, as  compensation,  to the  Representatives  for the
accounts  of the  Underwriters,  the fee set forth in such  Terms  Agreement  in
respect of the amount of  Securities  to be sold  pursuant  to Delayed  Delivery
Contracts   ("Contract   Securities").   The  Underwriters  will  not  have  any
responsibility in respect of the validity or the performance of Delayed Delivery
Contracts. If the Company executes and delivers Delayed Delivery Contracts,  the
Contract  Securities will be deducted from the Securities to be purchased by the
several  Underwriters  and the aggregate amount of Securities to be purchased by
each  Underwriter  will be  reduced  pro rata in  proportion  to the  amount  of
Securities set forth opposite each  Underwriter's  name in such Terms Agreement,
except to the extent  that the  Representatives  determine  that such  reduction
shall be  otherwise  than pro rata and so advise the  Company.  The Company will
advise the  Representatives not later than the business day prior to the Closing
Date of the amount of Contract Securities.

                  4.       Further Agreements of the Company.  The Company
agrees:

                  (a)  To  prepare  the  Prospectus  in a form  approved  by the
Representatives  and to file such Prospectus (i) pursuant to Rule 424(b)(1) (or,
if  applicable  and if  consented  to by the  Representatives,  pursuant to Rule
424(b)(4)) not later than the  Commission's  close of business on the earlier of
(A) the second business day following the date of the Terms Agreement or (B) the
fifteenth  business  day after the  Effective  Date,  or (ii) if the date of the
Terms  Agreement is after the fifteenth  business day after the Effective  Date,
pursuant  to Rule  424(b)(2)  (or,  if  applicable  and if  consented  to by the
Representatives,  pursuant to Rule 424(b)(5)) not later than the second business
day following the date of a Terms Agreement; to advise the

                                       -7-
<PAGE>
Representatives, promptly after it receives notice thereof, of the time when the
Registration  Statement,  or any  amendment  thereto,  has been filed or becomes
effective or any supplement to the Prospectus or any amended Prospectus has been
filed and to furnish  the  Representatives  with copies  thereof;  to advise the
Representatives,  promptly after it receives notice thereof,  of the issuance by
the  Commission of any stop order or of any order  preventing or suspending  the
use of any Preliminary  Prospectus or the  Prospectus,  of the suspension of the
qualification of the Securities for offering or sale in any jurisdiction, of the
initiation or  threatening  of any  proceeding  for any such purpose,  or of any
request by the Commission for the amending or  supplementing of the Registration
Statement or the Prospectus or for additional information;  and, in the event of
the issuance of any stop order or of any order  preventing or suspending the use
of  any  Preliminary  Prospectus  or  the  Prospectus  or  suspending  any  such
qualification, to use promptly its best efforts to obtain its withdrawal;

                  (b) To furnish promptly to each of the  Representatives and to
counsel for the Underwriters a conformed copy of the  Registration  Statement as
originally filed with the Commission,  and each amendment thereto filed with the
Commission, including all consents and exhibits filed therewith;

                  (c) To furnish promptly to each of the Representatives  copies
of  the  Registration   Statement,   including  all  exhibits,  any  Preliminary
Prospectus, the Prospectus and all amendments and supplements to such documents,
in each  case as soon as  available  and in such  quantities  as are  reasonably
requested;

                  (d) To file promptly with the  Commission any amendment to the
Registration  Statement or the  Prospectus or any  supplement to the  Prospectus
that may, in the reasonable judgment of the Company or the  Representatives,  be
required by the Securities Act or requested by the Commission;

                  (e) Prior to filing with the  Commission  any (i) amendment to
the  Registration  Statement  or  supplement  to  the  Prospectus  or  (ii)  any
Prospectus pursuant to Rule 424 of the Rules and Regulations,  to furnish a copy
thereof to the Representatives and counsel for the Underwriters;

                  (f) As soon  as  practicable  after  the  date  of each  Terms
Agreement,  but in no event later than twelve  months after the later of (i) the
effective  date  of  the  registration  statement  relating  to  the  Registered
Securities,  (ii) the effective date of the most recent post-effective amendment
to the  Registration  Statement  to become  effective  prior to the date of such
Terms

                                       -8-
<PAGE>
Agreement and (iii) the date of the Company's  most recent Annual Report on Form
10-K filed with the  Commission  prior to the date of such Terms  Agreement,  to
make generally  available to its security  holders an earnings  statement  which
will satisfy the provisions of Section 11(a) of the  Securities Act  (including,
at the option of the Company, Rule 158), it being intended that the Company will
satisfy the  foregoing  obligation by making  available  copies of its quarterly
reports on Form 10-Q;

                  (g)  Promptly  from time to time,  to take such  action as the
Representatives  may  reasonably  request to qualify the Securities for offering
and sale under the securities laws of such jurisdictions as the  Representatives
may  request  and to comply  with such laws so as to permit the  continuance  of
sales and dealings therein in such jurisdictions for as long as may be necessary
to complete the  distribution  of the  Securities;  provided  that in connection
therewith the Company shall not be required to qualify as a foreign  corporation
or to file a general  consent to service  of process in any  jurisdiction  or to
subject itself to taxation in respect of doing business in any  jurisdiction  in
which it is not otherwise so subject; and

                  (h) For the period  specified in the Terms  Agreement,  to not
(A) in the event of an offering of common stock,  preferred stock or convertible
debt securities,  directly or indirectly, offer for sale, sell, grant any option
for the sale of, or otherwise dispose of, any securities that are of the same or
similar class as the Securities or any common stock or any security exchangeable
for, or  convertible  into,  common stock (other than the  Securities and shares
issued  pursuant to (i) agreements in effect on the date of the Terms  Agreement
and (ii) employee benefit plans,  qualified stock option plans or other employee
compensation  plans existing on the date of such Terms Agreement),  without,  in
any case,  the prior  written  consent  of a  majority  of the  Representatives;
provided,  however, the Company may, without such consent, offer and sell shares
of common  stock of the Company in  transactions  exempt  from the  registration
requirements  of the  Securities  Act,  provided  that  the  purchasers  in such
transactions  are  prohibited  from  offering  for sale,  selling  or  otherwise
disposing of,  directly or indirectly,  any of the shares of common stock of the
Company so acquired by them for the remainder of the period,  if any,  specified
in  the  Terms,  Agreement  and,  (B)  in  the  event  of an  offering  of  Debt
Insecurities,  offer for  sale,  sell or cause to be  offered  for sale or sold,
without the prior written consent of a majority of the Representatives, any debt
securities which are substantially similar to the Securities.


                                       -9-
<PAGE>
                  5. Expenses.  The Company agrees to pay (a) the costs incident
to the  authorization,  issuance,  sale and delivery of the  Securities  and any
taxes payable in that  connection;  (b) the costs  incident to the  preparation,
printing and filing under the Securities Act of the  Registration  Statement and
any  amendments  and  exhibits  thereto;  (c)  the  costs  of  distributing  the
Registration  Statement as originally  filed and each amendment  thereto and any
post-effective  amendments  thereto  (including,  in each case,  exhibits),  any
Preliminary  Prospectus,  the  Prospectus and any amendment or supplement to the
Prospectus and any documents  incorporated by reference in any of the foregoing,
all as provided in this Agreement; (d) the costs of reproducing and distributing
this Agreement;  (e) the filing fees incident to securing any required review by
the National Association of Securities Dealers, Inc. of the terms of sale of the
Securities,  if necessary;  (f) any applicable  stock exchange  listing or other
fees;  (g) the fees and expenses of filings,  if any,  with  foreign  securities
administrators and of qualifying the Securities under the securities laws of the
several jurisdictions as provided in Section 4(g) and of preparing, printing and
distributing  a Blue Sky  Memorandum  (including  related  fees and  expenses of
counsel to the Underwriters up to a maximum of $________);  (h) the fees paid to
rating agencies in connection  with the rating of the Securities;  (i) the costs
of printing and issuance of certificates,  if any; (j) transfer agent's fees, if
any; and (k) all other costs and  expenses  incident to the  performance  of the
obligations  of the  Company  under  this  Agreement;  provided  that  except as
provided in this Section 5 and in Section 10, the  Underwriters  shall pay their
own costs and expenses,  including the costs and expenses of their counsel,  any
transfer  taxes on the  Securities  which  they may  sell  and the  expenses  of
advertising  any offering of the Securities  made by the  Underwriters,  and the
Company  shall pay the fees and expenses of its counsel and any  transfer  taxes
payable in connection with its sale of Securities to the Underwriters.

                  6.  Conditions of  Underwriter's  Obligations.  The respective
obligations of the Underwriters herewith are subject to the accuracy,  when made
and at the time of delivery of any Securities pursuant to a Terms Agreement,  of
the  representations  and  warranties of the Company  contained  herein,  to the
performance  by the  Company  of it  obligations  hereunder,  and to each of the
following additional terms and conditions;

                  (a) The  Prospectus  shall  have been  timely  filed  with the
Commission  in  accordance  with  Section  4(a);  no stop order  suspending  the
effectiveness of the Registration  Statement or any part thereof shall have been
issued and no proceeding for that

                                      -10-
<PAGE>
purpose shall have been initiated or threatened by the Commission.

                  (b) All corporate proceedings and other legal matters incident
to the authorization,  form and validity of this Agreement, the Terms Agreement,
the Indenture,  if any,  described in the Terms Agreement,  the Securities,  the
Registration Statement and the Prospectus,  and all other legal matters relating
to this  Agreement  and the Terms  Agreement and the  transactions  contemplated
hereby and thereby shall be satisfactory in all material respects to counsel for
the  Underwriters,  and the Company shall have  furnished to such  counsel,  all
documents and  information  that they may  reasonably  request to enable them to
pass upon such matters.

                  (c) Sidley & Austin,  counsel to the Company, or other counsel
to the Company  acceptable to the  Representatives,  shall have furnished to the
Representatives  their written opinion, as counsel to the Company,  addressed to
the  Underwriters  and dated the Closing  Date,  and, if Option  Securities  are
purchased, at any date after the Closing Date as specified in a Terms Agreement,
additional opinions from such counsel, in form and substance satisfactory to the
Representatives to the effect that:

                  (i) The Indenture,  if any,  described in the Terms  Agreement
         has been duly  authorized,  executed  and  delivered by the Company and
         duly  qualified  under  the  Trust  Indenture  Act  and,  assuming  due
         authorization,   execution   and  delivery   thereof  by  the  Trustee,
         constitutes  a valid and  legally  binding  obligation  of the  Company
         enforceable against the Company in accordance with its terms;

                  (ii) The  Debt  Securities,  if any,  described  in the  Terms
         Agreement  have been  duly  authorized  and,  when  duly  executed  and
         delivered by the Company, and assuming due execution and authentication
         thereof by the Trustee and upon payment and delivery in accordance with
         this  Agreement,   the  Debt   Securities,   other  than  any  Contract
         Securities,   and  any   Contract   Securities   when  duly   executed,
         authenticated,  issued  and  delivered  in the manner  provided  in the
         Indenture and sold  pursuant to the Delayed  Delivery  Contracts,  will
         constitute  valid  and  legally  binding  obligations  of the  Company,
         enforceable  against  the  Company in  accordance  with their terms and
         entitled to the benefits of the Indenture;

                  (iii) If any  Securities  to be issued  are  convertible  into
         common  stock,  the shares of common  stock  into which the  Securities
         initially will be  convertible  are duly and validly  authorized,  have
         been duly reserved for issuance

                                      -11-
<PAGE>
         upon  conversion  of the  Securities,  and when  duly  issued  upon the
         conversion of the  Securities  will be duly and validly  issued,  fully
         paid and non-assessable;

                  (iv) If the  Securities  to be  issued  are  common  stock  or
         preferred stock, the Securities,  when certificates  therefor have been
         duly executed,  countersigned  and registered and delivered to and paid
         for by the  Underwriters in accordance with the Terms  Agreement,  will
         constitute  shares of common stock or preferred  stock, as the case may
         be, which have been duly authorized and validly issued,  fully paid and
         non assessable;

                  (v) The Registration  Statement has become effective under the
         Securities  Act and, to the  knowledge of such  counsel,  no stop order
         suspending  effectiveness of the Registration Statement has been issued
         and, to the knowledge of such counsel,  no proceeding  for that purpose
         has been instituted or threatened by the Commission;

                  (vi) The Registration  Statement and the Prospectus (excluding
         all  documents  incorporated  by  reference  therein)  and any  further
         amendments  or  supplements  thereto  made by the Company  prior to the
         Closing  Date (other than the  financial  statements,  financial  data,
         statistical data and supporting schedules included therein, as to which
         such counsel need express no opinion) comply as to form in all material
         respects with the requirements of the Securities Act and the applicable
         rules and regulations under said Act;

                  (vii) The Securities,  other than any Contract Securities, the
         Indenture  and the  capital  stock  of the  Company,  and any  Contract
         Securities,  when  issued,  delivered  and sold,  will  conform  in all
         material   respects  to  the  description   thereof   included  in  the
         Registration Statement;

                  (viii)  The  Terms  Agreement  (including  the  terms  of this
         Agreement)   and  any  Delayed   Delivery   Contracts  have  been  duly
         authorized, executed and delivered by the Company; and

                  (ix) Except for the  registration of the Securities  under the
         Securities   Act  and   such   consents,   approvals,   authorizations,
         registration  or  qualifications  as may be  required  under  the Trust
         Indenture  Act or the  Exchange  Act, and  applicable  state or foreign
         securities laws in connection with the purchase and distribution of the
         Securities by the Underwriters, no consent, approval,  authorization or
         order  of,  or  filing  or   registration   with,  any  such  court  or
         governmental agency or body is required

                                      -12-
<PAGE>
         for the  execution,  delivery and  performance  of the Terms  Agreement
         (including the provisions of this Agreement) and the Indenture, if any,
         described in the Terms  Agreement,  by the Company and the consummation
         of the transactions contemplated hereby and thereby.

         In  addition,   such   counsel   shall  state  that  such  counsel  has
         participated in conferences with officers and other  representatives of
         the Company,  representatives of the independent public accountants for
         the  Company  and the  Representatives  at which  the  contents  of the
         Registration   Statement  and  Prospectus  and  related   matters  were
         discussed,  and although  such counsel is not passing upon and does not
         assume  any  responsibility  for,  and  shall  not be  deemed  to  have
         independently  verified the accuracy,  completeness  or fairness of the
         statements  contained or incorporated by reference in the  Registration
         Statement and Prospectus, and has relied as to materiality,  to a large
         extent,  upon the  judgment  of  officers  and  representatives  of the
         Company,  on the  basis  of the  foregoing,  nothing  has  come  to the
         attention  of such  counsel  which  causes  them to  believe  that  the
         Registration  Statement,  as of the Effective Time, contained an untrue
         statement  of a  material  fact or  omitted  to state a  material  fact
         required  to be stated  therein  or  necessary  to make the  statements
         therein not misleading,  or that the Prospectus, as of the date of such
         opinion,  contains an untrue  statement of a material  fact or omits to
         state a material  fact  required to be stated  therein or  necessary to
         make the statements  therein, in light of the circumstances under which
         they were made, not misleading (except that, in each case, such counsel
         need  express no comment  with  respect  to the  financial  statements,
         financial data,  statistical data and supporting  schedules included in
         the Registration Statement or the Prospectus).

         In  rendering  such  opinion,  such  counsel  may (1) state  that their
         opinion is limited  to the laws of the United  States,  the laws of the
         State of New  York  and the  General  Corporation  Law of the  State of
         Delaware,  (2) rely as to matters of fact upon  certificate of officers
         of the Company,  its subsidiaries  and public  officers;  and (3) state
         that their opinions set forth in  subparagraphs  (i) and (ii) above are
         subject to the qualification  that the  enforceability of the Company's
         obligations  under the Indenture and the  Securities  may be limited by
         bankruptcy,     moratorium,    insolvency,    fraudulent    conveyance,
         reorganization   and  other  similar  laws  relating  to  or  affecting
         creditors' rights generally and by the effect of general  principles of
         equity (whether such enforceability is considered in a proceeding

                                      -13-
<PAGE>
         in equity or at law) or by an implied covenant of good faith
         and fair dealing.

                  (d) Raymond I.  Skilling,  Executive  Vice President and Chief
Counsel of the Company,  shall have furnished to the Representatives his written
opinion,  addressed  to the  Underwriters  and dated the Closing  Date,  and, if
Option Securities are purchased, at any date after the Closing Date as specified
in the Terms  Agreement,  additional  opinions  from such  counsel,  in form and
substance satisfactory to the Representatives to the effect that:

                  (i) The Company and each of its Significant  Subsidiaries have
         been duly incorporated and are validly existing as corporations in good
         standing  under  the  laws  of  their   respective   jurisdictions   of
         incorporation  and have corporate power and authority  necessary to own
         or hold their respective properties and conduct the businesses in which
         they are engaged,  and are duly qualified to transact  business and are
         in good standing in each  jurisdiction in which the conduct of business
         or ownership or leasing of property requires such qualification, except
         to the  extent  that  the  failure  to be so  qualified  or be in  good
         standing  would not have a material  adverse  effect on the Company and
         its subsidiaries, taken as a whole;

                  (ii)  All of the  issued  shares  of  capital  stock  of  each
         Significant Subsidiary have been duly and validly authorized and issued
         and are fully paid,  non-assessable and owned directly or indirectly by
         the  Company,  free and clear of all liens,  encumbrances,  equities or
         claims;

                  (iii)  To such  counsel's  knowledge,  there  are no  legal or
         governmental  proceedings  pending  to which the  Company or any of its
         subsidiaries  is a party or to which any property of the Company or any
         of its  subsidiaries is the subject,  that are required be described in
         the Registration  Statement or the Prospectus and are not so described,
         or any statutes,  regulations,  contracts or other  documents  that are
         required  to  be  described  in  the  Registration   Statement  or  the
         Prospectus or to be filed as an exhibit to the  Registration  Statement
         that are not described or filed as required;

                  (iv) The Registration  Statement and the Prospectus (including
         all  documents  incorporated  by  reference  therein)  and any  further
         amendments  or  supplements  thereto  made by the Company  prior to the
         Closing  Date (other than the  financial  statements,  financial  data,
         statistical data and supporting schedules included therein, as to which
         such

                                      -14-
<PAGE>
         counsel  need  express no  opinion)  comply as to form in all  material
         respects with the  requirements of the Securities Act, the Exchange Act
         and the applicable rules and regulations under said Acts;

                  (v)  The  sale  of the  Securities  by  the  Company  and  the
         compliance by the Company with all of the provisions of this Agreement,
         the Terms  Agreement,  the  Indenture,  if any,  described in the Terms
         Agreement,  any Delayed Delivery  Contract and the Securities,  and the
         consummation of the transactions  contemplated  hereby and thereby will
         not contravene  any provision of applicable  law or the  certificate of
         incorporation or by-laws of the Company or any of its subsidiaries, or,
         to the  knowledge of such counsel,  any  agreement or other  instrument
         binding upon the Company or any of its subsidiaries that is material to
         the  Company  and  its  subsidiaries,  taken  as a  whole,  or,  to the
         knowledge  of such  counsel,  any  judgment,  order  or  decree  of any
         governmental body, agency or court having jurisdiction over the Company
         or any  subsidiary;  and except for the  registration of the Securities
         under the Securities Act and such consents, approvals,  authorizations,
         registration  or  qualifications  as may be  required  under  the Trust
         Indenture  Act or the  Exchange  Act, and  applicable  state or foreign
         securities laws in connection with the purchase and distribution of the
         Securities by the Underwriters, no consent, approval,  authorization or
         order  of,  or  filing  or   registration   with,  any  such  court  or
         governmental agency or body is required for the execution, delivery and
         performance  of the Terms  Agreement  (including the provisions of this
         Agreement) and the Indenture, if any, described in the Terms Agreement,
         by the Company and the  consummation of the  transactions  contemplated
         hereby and thereby.

         In  addition,   such   counsel   shall  state  that  such  counsel  has
         participated in conferences with officers and other  representatives of
         the Company,  representatives of the independent public accountants for
         the  Company  and the  Representatives  at which  the  contents  of the
         Registration   Statement  and  Prospectus  and  related   matters  were
         discussed,  and although  such counsel is not passing upon and does not
         assume  any  responsibility  for,  and  shall  not be  deemed  to  have
         independently  verified the accuracy,  completeness  or fairness of the
         statements  contained or incorporated by reference in the  Registration
         Statement and Prospectus, and has relied as to materiality,  to a large
         extent,  upon the  judgment  of  officers  and  representatives  of the
         Company,  on the  basis  of the  foregoing,  nothing  has  come  to the
         attention of such counsel which causes them to believe that

                                      -15-
<PAGE>
         the  Registration  Statement,  as of the Effective  Time,  contained an
         untrue statement of a material fact or omitted to state a material fact
         required  to be stated  therein  or  necessary  to make the  statements
         therein not misleading,  or that the Prospectus, as of the date of such
         opinion,  contains an untrue  statement of a material  fact or omits to
         state a material  fact  required to be stated  therein or  necessary to
         make the statements  therein, in light of the circumstances under which
         they were made, not misleading (except that, in each case, such counsel
         need  express no comment  with  respect  to the  financial  statements,
         financial data,  statistical data and supporting  schedules included in
         the Registration Statement or the Prospectus).

         In  rendering  such  opinion,  such  counsel  may (1) state  that their
         opinion is limited  to the laws of the United  States,  the laws of the
         State of New  York  and the  General  Corporation  Law of the  State of
         Delaware,  (2) rely as to matters of fact upon  certificate of officers
         of the Company,  its subsidiaries  and public  officers;  and (3) state
         that their opinions set forth in  subparagraphs  (i) and (ii) above are
         subject to the qualification  that the  enforceability of the Company's
         obligations  under the Indenture and the  Securities  may be limited by
         bankruptcy,   insolvency,   fraudulent   conveyance,    reorganization,
         moratorium  and other similar laws relating to or affecting  creditors'
         rights   generally,   general   equitable   principles   (whether  such
         enforceability is considered in a proceeding in equity or at law) or by
         an implied covenant of good faith and fair dealing.

                  (e) The Company shall have furnished to the  Representatives a
letter (as used in this paragraph the "bring down letter") of Ernst & Young LLP,
or  such  other  independent  accountants  acceptable  to  the  Representatives,
addressed to the  Underwriters  and dated the Closing Date, (i) confirming  that
they are independent public accountants within the meaning of the Securities Act
and  are  in  compliance  with  the  applicable  requirements  relating  to  the
qualification  of  accountants   under  Rule  2-01  of  Regulation  S-X  of  the
Commission,  (ii)  stating,  as of the date of the  bring-down  letter (or, with
respect to matters involving changes or developments  since the respective dates
as of which specified financial information is given in the Prospectus,  as of a
date not more than five days prior to the date of the  bring-down  letter),  the
conclusions and findings of such firm with respect to the financial  information
and other matters covered by its letter (the "initial letter")  delivered to the
Representatives concurrently with the execution of the Terms Agreement and (iii)
confirming in all material respects the

                                      -16-
<PAGE>
conclusions and findings set forth in the initial letter.

                  (f) The Company shall have furnished to the  Representatives a
certificate,  dated the Closing  Date,  and on any later date,  if any, on which
Option Securities are purchased,  of an executive officer of the Company stating
that the representations,  warranties and agreements of the Company in Section 2
hereof are true and correct as of such date;  the Company has complied  with all
its  agreements  contained  herein;  and the  conditions  set forth in Section 6
hereof have been fulfilled.

                  (g)  Subsequent  to the  execution  and  delivery of the Terms
Agreement,  there shall not have occurred any change,  or any development  which
would be reasonably likely to result in a change, in the condition, financial or
otherwise,  or in the earnings,  business or operations,  of the Company and its
Significant  Subsidiaries,  taken  as a  whole,  from  that  set  forth  in  the
Prospectus,  that,  in the  judgment of the  Representatives,  is  material  and
adverse and that makes it, in the judgment of the Representatives, impracticable
to market the Offered Securities on the terms and in the manner  contemplated in
the Prospectus.

                  (h)  Subsequent  to the  execution  and  delivery of the Terms
Agreement,  there shall not have occurred any of the  following:  (i) trading in
securities  generally on the New York Stock  Exchange,  Inc. (the  "NYSE"),  the
American Stock Exchange or the over-the-counter market shall have been suspended
or minimum  prices shall have been  established  on either of such  exchanges or
such market by the commission,  by such exchange or by any other regulatory body
or governmental  authority having jurisdiction,  (ii) a banking moratorium shall
have been  declared  by Federal or state  authorities,  (iii) the United  States
shall have become engaged in hostilities, there shall have been an escalation in
hostilities  involving  the United States or there shall have been a declaration
of a national  emergency  or war by the United  States or (iv) there  shall have
occurred  such a material  adverse  change in  general  economic,  political  or
financial conditions (or the effect of international conditions on the financial
markets in the  United  States  shall be such) as to make it, in the  reasonable
judgment of the  Representatives,  impracticable  or inadvisable to proceed with
the delivery of the Securities.

                  (i)  Subsequent  to the  execution  and  delivery of the Terms
Agreement,  (i) no  downgrading  shall have occurred in the rating  accorded the
Company's  debt  securities by any  "nationally  recognized  statistical  rating
organization,"  as that term is defined by the  Commission  for purposes of Rule
436(g)(2) of the

                                      -17-
<PAGE>
Rules  and  Regulations  and  (ii)  no such  organization  shall  have  publicly
announced  that it has under  surveillance  or review,  with  possible  negative
implications, its rating of any of the Company's debt securities.

                  7.       Indemnification and Contribution.

                  (a)  The  Company  shall  indemnify  and  hold  harmless  each
Underwriter  and each person,  if any, who controls any  Underwriter  within the
meaning of the  Securities  Act,  from and  against any loss,  claim,  damage or
liability,  joint or  several,  or any action in  respect  thereof to which that
Underwriter or controlling  person may become subject,  under the Securities Act
or otherwise,  insofar as such loss, claim,  damage,  liability or action arises
out of, or is based upon, (i) any untrue  statement or alleged untrue  statement
of a material fact contained in any  Preliminary  Prospectus,  the  Registration
Statement or the  Prospectus or in any  amendment or supplement  thereto or (ii)
the omission or alleged omission to state therein a material fact required to be
stated therein or necessary to make the statements  therein not misleading,  and
shall reimburse each Underwriter and each such controlling  person for any legal
or other expenses  reasonably incurred by that Underwriter or controlling person
in connection with investigating or defending or preparing to defend against any
such loss,  claim,  damage,  liability or action as such  expenses are incurred;
provided,  however, that the Company shall not be liable in any such case to the
extent that any such loss, claim, damage,  liability or action arises out of, or
is based upon, any untrue  statement or alleged untrue  statement or omission or
alleged omission made in any Preliminary Prospectus,  the Registration Statement
or the Prospectus or in any such amendment or supplement in reliance upon and in
conformity  with  written  information  furnished  to the  Company  through  the
Representatives  by or on behalf of any Underwriter  specifically  for inclusion
therein;  and  provided  further,  that  as to  any  Preliminary  Prospectus  or
supplement  thereto this indemnity  agreement  shall not inure to the benefit of
any  Underwriter or any person  controlling  that  Underwriter on account of any
loss, claim, damage,  liability or action arising from the sale of Securities to
any person by that Underwriter if that Underwriter failed to send or give a copy
of the Prospectus,  as the same may be amended or  supplemented,  to that person
within the time  required by the  Securities  Act,  and the untrue  statement or
alleged untrue  statement of a material fact or omission or alleged  omission to
state a material fact in such Preliminary  Prospectus or supplement  thereto was
corrected in the Prospectus, unless such failure resulted from non-compliance by
the Company with Section 4(c). For purposes of the second proviso to the

                                      -18-
<PAGE>
immediately  preceding  sentence,  the term  Prospectus  shall  not be deemed to
include the documents  incorporated  by reference  therein,  and no  Underwriter
shall be obligated to send or give any  supplement  or amendment to any document
incorporated by reference in a Preliminary  Prospectus or supplement  thereto or
the  Prospectus to any person other than a person to whom such  Underwriter  has
delivered such incorporated documents in response to a written request therefor.
The  foregoing  indemnity  agreement is in addition to any  liability  which the
Company may otherwise have to any  Underwriter or to any  controlling  person of
that Underwriter.

                  (b)  Each  Underwriter,   severally  and  not  jointly,  shall
indemnify and hold harmless the Company,  each of its directors  (including  any
person who, with his or her consent,  is named in the Registration  Statement as
about to become a director of the Company),  each of its officers who signed the
Registration Statement, and each person, if any, who controls the Company within
the meaning of the Securities Act, from and against any loss,  claim,  damage or
liability,  joint or  several,  or any action in respect  thereof,  to which the
Company or any such director,  officer or controlling person may become subject,
under the  Securities  Act or otherwise,  insofar as such loss,  claim,  damage,
liability or action arises out of, or is based upon, (i) any untrue statement or
alleged  untrue  statement  of a  material  fact  contained  in any  Preliminary
Prospectus,  the Registration Statement or the Prospectus or in any amendment or
supplement  thereto or (ii) the omission or alleged  omission to state therein a
material fact required to be stated  therein or necessary to make the statements
therein  not  misleading,  but in each case only to the  extent  that the untrue
statement or alleged untrue  statement or omission or alleged  omission was made
in reliance upon and in  conformity  with written  information  furnished to the
Company  through  the  Representatives  by  or on  behalf  of  that  Underwriter
specifically for inclusion therein, and shall reimburse the Company and any such
director,  officer  or  controlling  person  for any  legal  or  other  expenses
reasonably incurred by the Company or any such director,  officer or controlling
person in connection with investigating or defending preparing to defend against
any such loss, claim, damage, liability or action as such expenses are incurred.
The  foregoing  indemnity  agreement is in addition to any  liability  which any
Underwriter  may otherwise have to the Company or any such director,  officer or
controlling person.

                  (c) Promptly after receipt by an indemnified  party under this
Section  7 of  notice  of any  claim  or the  commencement  of any  action,  the
indemnified party shall, if a claim in respect thereof is to be made against the
indemnifying  party  under this  Section 7,  notify  the  indemnifying  party in
writing of the claim

                                      -19-
<PAGE>
or the commencement of that action. If any such claim or action shall be brought
against  an  indemnified  party,  and it shall  notify  the  indemnifying  party
thereof, the indemnifying party shall be entitled to participate therein and, to
the  extent  that  it  wishes,   jointly  with  any  other  similarly   notified
indemnifying  party,  to assume the  defense  thereof  with  counsel  reasonably
satisfactory to the indemnified  party. After notice from the indemnifying party
to the indemnified  party of its election to assume the defense of such claim or
action,  the  indemnifying  party shall not be liable to the  indemnified  party
under this Section 7 for any legal or other  expenses  subsequently  incurred by
the indemnified party in connection with the defense thereof; provided, however,
that the  Representatives  shall have the right to employ  counsel to  represent
jointly the  Representatives  and those other  Underwriters and their respective
controlling  persons who may be subject to liability arising out of any claim in
respect of which indemnity may be sought by the Underwriters against the Company
under this Section 7 if the named parties to any such proceeding  (including any
impleaded parties) include both the Company and the  Representatives  and if, in
the reasonable judgment of the  Representatives,  representation of both parties
by the same counsel would be inappropriate due to actual or potential  differing
interest  between them, and in that event the fees and expenses of such separate
counsel shall be paid by the Company.  It is  understood  that the Company shall
not, in respect of the legal expenses of the  Representatives in connection with
any proceeding or related  proceedings in the same  jurisdiction,  be liable for
the fees and expenses of more than one  separate  firm (in addition to any local
counsel) for all such  indemnified  parties.  Anything in this subsection to the
contrary  notwithstanding,  an  indemnifying  party  shall not be liable for any
settlement of claim or action effected without its written consent.

                  (d) If the  indemnification  provided  for in this  Section  7
shall for any reason be  unavailable  to or  insufficient  to hold  harmless  an
indemnified  party  under  Section  7(a) or 7(b) in respect of any loss,  claim,
damage or liability, or any action in respect thereof, referred to therein, then
each indemnifying  party shall, in lieu of indemnifying such indemnified  party,
contribute to the amount paid or payable by such  indemnified  party as a result
of such loss, claim, damage or liability,  or action in respect thereof,  (i) in
such  proportion  as shall be  appropriate  to  reflect  the  relative  benefits
received by the Company on the one hand and the  Underwriters  on the other from
the offering of the Securities or (ii) if the allocation  provided by clause (i)
above is not permitted by applicable  law, in such  proportion as is appropriate
to reflect not only the relative

                                      -20-
<PAGE>
benefits  referred  to in clause  (i) above but also the  relative  fault of the
Company on the one hand and the  Underwriters  on the other with  respect to the
statements or omissions which resulted in such loss, claim, damage or liability,
or  action  in  respect  thereof,  as  well  as  any  other  relevant  equitable
considerations.  The relative  benefits  received by the Company on the one hand
and the  Underwriters on the other with respect to such offering shall be deemed
to be in the same  proportion as the total net proceeds from the offering of the
Securities  purchased under this Agreement (before deducting  expenses) received
by the Company bear to the total underwriting discounts and commissions received
by  the  Underwriters  with  respect  to the  Securities  purchased  under  this
Agreement,  in each  case as set  forth in the  table on the  cover  page of the
Prospectus.  The relative  fault shall be determined by reference to whether the
untrue or alleged  untrue  statement  of a material  fact or omission or alleged
omission to state a material fact relates to information supplied by the Company
or the  Underwriters,  the intent of the parties and their  relative  knowledge,
access to  information  and  opportunity to correct or prevent such statement or
omission.

                  The  Company and the  Underwriters  agree that it would not be
just and  equitable  if  contributions  pursuant to this Section 7(d) were to be
determined by pro rata allocation (even if the Underwriters  were treated as one
entity for such  purpose) or by any other  method of  allocation  which does not
take into account the equitable  considerations  referred to herein.  The amount
paid or payable by an indemnified party as a result of the loss,  claim,  damage
or liability;  or action in respect  thereof,  referred to above in this Section
7(d) shall be deemed to include, for purposes of this Section 7(d), any legal or
other expenses  reasonably incurred by such indemnified party in connection with
investigating  or  defending  any such  action  or  claim.  Notwithstanding  the
provisions of this Section 7(d), no Underwriter  shall be required to contribute
any  amount  in excess  of the  amount  by which  the  total  price at which the
Securities  underwritten  by it and distributed to the public was offered to the
public  exceeds the amount of any damages which such  Underwriter  has otherwise
paid or become liable to pay by reason of any untrue or alleged untrue statement
or   omission   or   alleged   omission.   No  person   guilty   of   fraudulent
misrepresentation  (within the meaning of Section 11(f) of the  Securities  Act)
shall be  entitled  to  contribution  from any person who was not guilty of such
fraudulent  misrepresentation.  The  Underwriters'  obligations to contribute as
provided in this  Section  7(d) are several in  proportion  to their  respective
underwriting obligations and not joint.

                  (e)      The Underwriters severally confirm that the

                                      -21-
<PAGE>
statements  with respect to the public  offering of the  Securities set forth on
the cover page of, and under the caption  "Underwriting"  in, the Prospectus and
any legends relating to stabilization and overallotment  therein are correct and
constitute  the only  information  furnished  in writing to the Company by or on
behalf  of the  Underwriters  specifically  for  inclusion  in the  Registration
Statement and the Prospectus.

                  (f)  The  agreements  contained  in  this  Section  7 and  the
representations,  warranties  and  agreements of the Company in Sections 2 and 4
shall survive the delivery of the  Securities and shall remain in full force and
effect,  regardless of any  termination or  cancellation  of the Terms Agreement
incorporating  the terms of this  Agreement or any  investigation  made by or on
behalf of any indemnified party.

                  8. Defaulting Underwriters. If any Underwriter defaults in the
performance  of  its  obligations   under  a  Terms  Agreement,   the  remaining
non-defaulting  Underwriters shall be obligated to purchase the Securities which
the  defaulting  Underwriter  agreed but failed to  purchase  in the  respective
proportions  which the number or principal amount of Securities set opposite the
name of each  remaining  non-defaulting  Underwriter  in Schedule A to the Terms
Agreement  bears to the total number or principal  amount of the  Securities set
opposite the names of all the remaining non-defaulting  Underwriters in Schedule
A to the Terms Agreement;  provided,  however, that the remaining non-defaulting
Underwriters  shall not be obligated to purchase any  Securities  on the Closing
Date if the aggregate  number or principal  amount of the  Securities  which the
defaulting  Underwriter  or  Underwriters  agreed but failed to purchase on such
date exceeds  9.09% of the total number or principal  amount of the  Securities,
and any remaining non-defaulting  Underwriter shall not be obligated to purchase
more  than 110% of the  number  or  principal  amount  of  Securities  set forth
opposite  its  name on  Schedule  A to the  Terms  Agreement.  If the  foregoing
maximums are exceeded, the remaining non-defaulting Underwriters, or those other
underwriters  satisfactory to the  Representatives  who so agree, shall have the
right,  but shall not be obligated,  to purchase,  in such  proportion as may be
agreed upon among them, all the  Securities.  If the remaining  Underwriters  or
other underwriters  satisfactory to the Representatives do not elect to purchase
the number or principal amount which the defaulting  Underwriter or Underwriters
agreed but failed to  purchase,  the Terms  Agreement  shall  terminate  without
liability on the part of any non-defaulting  Underwriter or the Company,  except
that the Company  will  continue to be liable for the payment of expenses to the
extent set forth in Sections 5 and 10.

                                      -22-
<PAGE>
                  Nothing   contained   herein   shall   relieve  a   defaulting
Underwriter  of any  liability it may have to the Company for damages  caused by
its  default.  If other  underwriters  are  obligated  or agree to purchase  the
Securities   of  a   defaulting   or   withdrawing   Underwriter,   either   the
Representatives  or the Company may  postpone  the Closing  Date for up to seven
full business days in order to effect any changes that in the opinion of counsel
for  the  Company  or  counsel  for the  Underwriters  may be  necessary  in the
Registration Statement, the Prospectus or any supplement thereto or in any other
document or arrangement.

                  9.  Effective  Date and  Termination.  The  obligations of the
Underwriters under the Terms Agreement may be terminated by the  Representatives
by notice given to and received by the Company  prior to delivery of any payment
for the  Securities  if,  prior to that  time,  the events  described  in any of
Section 6(g), 6(h) or 6(i) shall have occurred.

                  10.  Reimbursement  of  Underwriters'  Expenses.  If  (a)  the
Company shall fail to tender the Securities for delivery to the Underwriters for
any reason  permitted  under this  Agreement  or the Terms  Agreement or (b) the
Underwriters  shall decline to purchase the Securities for any reason  permitted
under this Agreement or the Terms  Agreement  (including the  termination of the
Terms  Agreement  pursuant to Section 9 but other than the  occurrence of any of
the  events  described  in  Section  6(h)),  the  Company  shall  reimburse  the
Underwriters  for the reasonable fees and expenses of their counsel and for such
other  out-of-pocket  expenses as shall have been reasonably incurred by them in
connection with the Terms Agreement and the proposed purchase of the Securities,
and  upon  demand  the  Company  shall  pay  the  full  amount  thereof  to  the
Representatives.  If the Terms Agreement is terminated  pursuant to Section 8 by
reason of the  default of one or more  Underwriters,  the  Company  shall not be
obligated to reimburse any Underwriter on account of those expenses.

                  11.  Notices,  etc.  All  statements,  requests,  notices  and
agreements hereunder shall be in writing, and:

                  (a) if to the  Underwriters,  shall  be  delivered  or sent by
mail,  telex or  facsimile  transmission  to their  addresses  furnished  to the
Company in writing for the purpose of communications hereunder;

                  (b) if to the  Company,  shall be  delivered  or sent by mail,
telex or facsimile  transmission  to the address of the Company set forth in the
Registration Statement, Attention:
General Counsel;

                                      -23-
<PAGE>
provided,  however,  that any notice to an Underwriter  pursuant to Section 7(c)
shall be delivered  or sent by mail,  telex or facsim ile  transmission  to such
Underwriter  at  its  address  set  forth  in  its   acceptance   telex  to  the
Representatives, which address will be supplied to any other party hereto by the
Representatives  upon  request.  Any  such  statements,   requests,  notices  or
agreements shall take effect at the time of receipt thereof.

                  12.  Persons  Entitled  to  Benefit  of  Agreement.  The Terms
Agreement  (including  the  provisions  of this  Agreement)  shall  inure to the
benefit  of and be  binding  upon the  Underwriters  and the  Company  and their
respective  successors.  The Terms  Agreement  (including the provisions of this
Agreement) are for the sole benefit of only those  persons,  except that (A) the
representations, warranties, indemnities and agreements of the Company contained
in this  Agreement  shall also be deemed to be for the  benefit of the person or
persons, if any, who control any Underwriter within the meaning of Section 15 of
the Securities Act and (B) the indemnity agreement of the Underwriters contained
in  Section  7(b) of this  Agreement  shall be deemed to be for the  benefit  of
directors  of  the  Company,  officers  of  the  Company  who  have  signed  the
Registration Statement and any person controlling the Company within the meaning
of Section 15 of the  Securities  Act.  Nothing in this Agreement is intended or
shall be  construed  to give any person,  other than the persons  referred to in
this  Section  12, any legal or  equitable  right,  remedy or claim  under or in
respect of this  Agreement or any provision  contained  herein.  No purchaser of
securities  from any  Underwriter  shall be deemed to be a  successor  by reason
merely of such person.

                  13.  Definition of the Terms "Business Day" and  "Subsidiary".
For purposes of this  Agreement,  (a) "business  day" means any day on which the
NYSE is open for trading and (b) "subsidiary" and "Significant  Subsidiary" each
has the meaning set forth in Rule 405 of the Rules and Regulations.

                  14.  Governing  Law. This  Agreement  shall be governed by and
construed in accordance  with the laws of New York (without giving effect to the
principles of choice of law).

                  15.  Counterparts.  The Terms Agreement may be executed in one
or more counterparts and, if executed in more than one counterpart, the executed
counterparts  shall each be deemed to be an original  but all such  counterparts
shall together constitute one and the same instrument.

                                      -24-
<PAGE>
                  16. Headings. The headings herein are inserted for convenience
of  reference  only and are not intended to be part of, or to affect the meaning
or interpretation of, this Agreement.

                                      -25-
<PAGE>



                                                                         ANNEX I



(Three copies of this Delayed Delivery Contract should be signed and returned to
the address shown below so as to arrive not later than 9:00 A.M., New York time,
on ______________, ____*.)


                            DELAYED DELIVERY CONTRACT
                            -------------------------


                                                                 [Insert date of
                                                                  initial public
                                                                       offering]


Aon CORPORATION
c/o [Name and address
  of Underwriter[s]]


Gentlemen:

                  The   undersigned   hereby   agrees  to   purchase   from  Aon
CORPORATION, a Delaware corporation ("Company"),  and the Company agrees to sell
to the undersigned,  [If one delayed closing, insert--as of the date hereof, for
                      ------------------------------
delivery on ______________, _____ ("Delivery Date")].


                  [$]_________________


principal amount of the Company's  [Insert title of securities]  ("Securities"),
                                    --------------------------
offered by the Company's  Prospectus  dated  ___________,_____  and a Prospectus
Supplement dated  ____________,  _____,  relating thereto,  receipt of copies of
which is hereby  acknowledged,  at ___% of the  principal  amount  thereof  plus
accrued  interest from  _______________,  ____, if any, and on the further terms
and conditions set forth in this Delayed Delivery Contract ("Contract").


         [If two or more delayed closings, insert the following:
          -----------------------------------------------------

                  The undersigned will purchase from the Company as of
____________________
*    Insert date which is third full  business  day prior to Closing  Date under
     the Terms Agreement.
                    
<PAGE>
the date hereof, for delivery on the dates set forth below,




Delivery Date                  Principal Amount

_____________                  [$]_____________

_____________                  [$]_____________

Each of such delivery dates is hereinafter referred to as a
Delivery Date.]

                  Payment for the Securities that the undersigned has agreed for
delivery  on-the-each-Delivery Date shall be made to the Company or its order by
[certified or official bank check in New York Clearing House (next day) funds at
the office of ________ at _______ _.M.  on-the-such-Delivery Date] upon delivery
to the  undersigned  of the  Securities to be purchased by the  undersigned--for
delivery on such Delivery Date--in  definitive fully registered form and in such
denominations  and registered in such names as the  undersigned may designate by
written or telegraphic communication addressed to the Company not less than five
full business days prior to-the-such-Delivery Date.

                  It  is  expressly  agreed  that  the  provisions  for  delayed
delivery and payment are for the sole convenience of the  undersigned;  that the
purchase hereunder of Securities is to be regarded in all respects as a purchase
as of the date of this  Contract;  that the  obligation  of the  Company to make
delivery of and accept  payment for, and the  obligation of the  undersigned  to
take  delivery of and make payment for,  Securities  on-the-such  Delivery  Date
shall be subject only to the  conditions  that (1)  investment in the Securities
shall  not  at-the-such-Delivery  Date  be  prohibited  under  the  laws  of any
jurisdiction  in the United States to which the  undersigned  is subject and (2)
the Company shall have sold to the  Underwriters  the total principal  amount of
the  Securities  less the  principal  amount  thereof  covered by this and other
similar  Contracts.  The  undersigned  represents  that  its  investment  in the
Securities  is not,  as of the date  hereof,  prohibited  under  the laws of any
jurisdiction  to which  the  undersigned  is  subject  and  which  governs  such
investment.

                  Promptly after  completion of the sale of the Underwriters the
Company will mail or deliver to the  undersigned at its address set forth below,
notice to such effect,  accompanied  by a copy of the opinion of counsel for the
Company

                                       -2-
<PAGE>
delivered to the Underwriters in connection therewith.

                  This Contract will inure to the benefit of and be binding upon
the parties hereto and their respective  successors,  but will not be assignable
by either party hereto without the written consent of the other.

                  It is understood  that the  acceptance of any such Contract is
in the Company's sole discretion and, without  limiting the foregoing,  need not
be on a first-come,  first-served  basis.  If this Contract is acceptable to the
Company,  it is requested that the Company sign the form of acceptance below and
mail or deliver one of the counterparts hereof to the undersigned at its address
set forth below. This will become a binding contract between the Company and the
undersigned when such counterpart is so mailed or delivered.


                                             Yours very truly,


                                             _______________________
                                             (Name of purchaser)


                                             By _____________________
                                                (Title of Signatory)


                                             _________________________

                                             _________________________
                                             (Address of Purchaser)


Accepted, as of the above date,
Aon CORPORATION


By_____________________________
Name:
Title:

                                       -3-

<PAGE>
                                                                    ANNEX II (A)



                                 Aon CORPORATION
                                   ("Company")

                                 DEBT SECURITIES

                                 TERMS AGREEMENT
                                 ---------------

                                                             ------------, -----


Aon Corporation
123 North Wacker Drive
Chicago, Illinois 60606

Dear Sirs:

                  [On behalf of the  Several  Underwriters  named in  Schedule A
hereto and for their  respective  accounts,  we] [We] offer to purchase,  on and
subject  to the  terms  and  conditions  of  the  Underwriting  Agreement  Basic
Provisions filed as exhibit on the Company's  registration statement on Form S-3
(No. 333-__) ("Underwriting Agreement"), the following securities ("Securities")
to be issued under an indenture,  dated __________,  _____,  between the Company
and as Trustee, on the following terms:

                  Title:  [____% Floating Rate] [Senior] [Subordinated]
                  -----
[Notes] [Debentures] Due ____

                  Principal Amount:  [$]
                  ----------------

                  Interest:  [___% per annum, from ______________, ____,
                  --------
payable semiannually on ____________ and commencing _______ ____,
to holders of record on the preceding _______________ or
________________, as the case may be.]

                  Maturity:  _____________________, ____.
                  --------

                  Optional Redemption:
                  -------------------

                  Sinking Fund:
                  ------------

                  Period Designated Pursuant to Section 4(h) of the Underwriting
                  --------------------------------------------------------------
Agreement _______ days.
- ---------     
                  [Conversion Provisions]:
                   ---------------------

<PAGE>
                  [Other Terms]

                  Delayed Delivery contracts: [None.] [Delivery Date[s]
                  --------------------------
shall be ____________, _____.  Underwriters' fee is __% of the
principal amount of the Contract Securities.]

                  Purchase Price: ___% of principal amount, plus accrued
                  --------------
interest [if any,] from ___________, ____.

                  Expected Reoffering Price:  ____% of principal amount,
                  -------------------------
subject to change by the undersigned.

                  Closing Date: _____ A.M. on ___________, ____, at
                  ------------
____________ in New York [Clearing House (next day)] [Federal
(same-day)] funds.

                  [Name[s] and Address[es] of Representative[s]:]





The  respective  principal  amounts of the Securities to be purchased by each of
the Underwriters are set forth opposite their names in Schedule A hereto.

                  [If  appropriate,  insert--It is understood  that we may, with
                   ------------------------
your consent,  amend this offer to add  additional  Underwriters  and reduce the
aggregate  principal  amount  to be  purchased  by the  Underwriters  listed  in
Schedule A hereto by the  aggregate  principal  amount to be  purchased  by such
additional Underwriters.]

                  The provisions of the Underwriting  Agreement are incorporated
herein by reference [If appropriate,  insert--,  except that the obligations and
                     -----------------------
agreements   set  forth  in  Section  8  ("Defaulting   Underwriters")   of  the
Underwriting Agreement shall not apply to the obligations of the Underwriters to
purchase the
above Securities].

                  The  Securities  will  be  made  available  for  checking  and
packaging  at the  office  of  _______________  at least  24 hours  prior to the
Closing Date.

                  [Please signify your acceptance of our offer by signing
the enclosed response to us in the space provided and returning
it to us.]

                                       -2-
<PAGE>
                  [Please signify your acceptance of the foregoing by
return wire not later than      P.M. today.]

                                             Very truly yours,



                                             [Insert name(s) of Representatives
                                             or Underwriters] [On behalf of
                                             themselves-itself-and as
                                             Representative[s] of the Several]
                                             [As] Underwriters[s]

                                             [By [Name of Representative]]


                                                  By:_______________________
                                                     Name:
                                                     Title:

                                       -3-
<PAGE>
                                   SCHEDULE A
                                   ----------


                                                       Principal
Underwriter                                              Amount 
- -----------                                            ---------













                                                     -----------
Total.............................................[$]___________


                                       -4-
<PAGE>

To:  [Insert name(s) of Representatives
                           or Underwriters]
                      As [Representative[s] of the Several]
                                 Underwriter[s],
                         [c/o (Name of Representative]]



                  We accept the offer contained in your [letter]  [wire],  dated
_____________,  ____,  relating to [$] principal  amount of our [Insert title of
                                                                 ---------------
Securities].
- ----------


                                                     Very truly yours,



                                                     Aon CORPORATION


                                                     By:_____________________
                                                        Name:
                                                        Title:

                                       -5-
<PAGE>
                                                                     ANNEX II(B)


                                 Aon CORPORATION
                                   ("Company")

                                EQUITY SECURITIES

                                 TERMS AGREEMENT
                                 ---------------

                                                               -------------,---

Aon Corporation
123 North Wacker Drive
Chicago, Illinois 60606

Dear Sirs:

                  [On behalf of the  several  Underwriters  named in  Schedule A
hereto and for their  respective  accounts,  we] [We] offer to purchase,  on and
subject  to the  terms  and  conditions  of  the  Underwriting  Agreement  Basic
Provisions filed as an exhibit to the Company's  registration  statement on Form
S-3 (No.  333-  _____)  ("Underwriting  Agreement"),  the  following  securities
("Securities") on the following terms:

         Title: [Common Stock] [Preferred Stock, Series _________]
         -----

         Number of Shares to be issued:  [_____________ shares]
         -----------------------------

         [For Preferred Stock:

         Voting Rights:
         -------------

         Preferred Stock Dividends: [cash dividends of $    to $  per
         -------------------------
share payable quarterly in arrears on _____________, ___________,
____________ and ___________.]

         Optional Redemption:
         -------------------

         Mandatory Redemption/Sinking Fund:
         ---------------------------------

         Liquidation Preference: [$    per share plus    ]
         ----------------------

         Name of Exchange or Market: [New York Stock Exchange]
         --------------------------
[Nasdaq National Market System] [American Stock Exchange]

         Period Designated Pursuant to Section 4(h) of the
         -------------------------------------------------
Underwriting Agreement:  _____ days.
- ----------------------     


<PAGE>
[Conversion Provisions]:
 ---------------------
         [Other Terms]

         Price to Public:  $___________ per share
         ---------------

         Underwriting Discounts and Commission:
         -------------------------------------

         Proceeds to Company:
         -------------------

         Over-Allotment Option:
         ---------------------

         Closing Date:          A.M. on _______________,______, at
         ------------
   ______________ in New York [Clearing House (next day)]
[Federal (same day)] funds.

         Name of Transfer Agent and Registrar:
         ------------------------------------

         [Name[s] and Address[es] of Representative[s]:]]

         [For Common Stock:

         Name of Exchange or Market: [New York Stock Exchange]
         --------------------------
[Nasdaq National Market System] [American Stock Exchange]

         Period Designated Pursuant to Section 4(h) of the
         -------------------------------------------------
Underwriting Agreement:  _____ days.
- ----------------------

         [Other Terms]

         Price to Public:  $______________ per share
         ---------------

         Underwriting Discounts and Commission:
         -------------------------------------

         Proceeds to Company:
         -------------------

         Over-Allotment Option:
         ---------------------

         Closing Date:  ____________ A.M. on ____________,_____, at
         ------------
_____________ in New York [Clearing House (next day)] [Federal
(same-day)] funds.

         Name of Transfer Agent and Register:
         -----------------------------------

         [Name[s] and Address[es] of Representative[s]:]]

                  The  respective  shares of the  Securities  to be purchased by
each of the  Underwriters  are set forth  opposite  their  names in  Schedule  A
herein.

                                       -2-
<PAGE>
                  [If appropriate,  insert -- It is understood that we may, with
                   -----------------------
your consent,  amend this offer to add  additional  Underwriters  and reduce the
number of shares to be purchased by the Underwriters listed in Schedule A hereto
by the number of shares to be purchased by such additional Underwriters.]

                  The provisions of the Underwriting  Agreement are incorporated
herein by reference [If appropriate,  insert --, except that the obligations and
                     -----------------------
agreements   set  forth  in  Section  8  ("Defaulting   Underwriters")   of  the
Underwriting Agreement shall not apply to the obligations of the Underwriters to
purchase the
above Securities].

                  The  Securities  will  be  made  available  for  checking  and
packaging  at the  office  of  ________________  at least 24 hours  prior to the
Closing Date.

                  [Please signify your acceptance of our offer by signing
the enclosed response to us in the space provided and returning
it to us.]

                  [Please signify your acceptance of the foregoing by
return wire not later than    P.M.    today.]


                                            Very truly yours,



                                            [Insert name(s) of Representatives
                                            or Underwriters] [On behalf of-
                                            themselves-itself-and as
                                            Representative[s] of the Several]
                                            [As] Underwriter[s]


                                            [By [Name of Representative]]


                                                  By_______________________
                                                    Name:
                                                    Title:

                                       -3-
<PAGE>
                                   SCHEDULE A


                                              Number of
Underwriter                                     Shares 
- -----------                                   ---------


























                                             -----------
Total.....................................[$]
                                             -----------

                                       -4-
<PAGE>
To:  [Insert name(s) of Representatives
                  or Underwriters]
                  As [Representative[s] of the Several]
                  Underwriter[s],
                  [c/o [Name of Representative]]



                  We accept the offer contained in your [letter]  [wire],  dated
__________________,  _____,  relating to ___________ shares of our [Insert title
                                                                    ------------
of Securities] (the "Terms Agreement").
- -------------

                                                     Very truly yours,

                                                     Aon CORPORATION

                                                     By_____________________
                                                              Name:
                                                              Title:











                                       -5-

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

                                                                    Exhibit 4(f)



                                 Aon Corporation



                                       and



                      U.S. BANK TRUST NATIONAL ASSOCIATION

                                     Trustee


                                    INDENTURE



                       Dated as of ______________________


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



                       Senior Subordinated Debt Securities





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

<PAGE>
                             CROSS-REFERENCE SHEET*

                                     BETWEEN

Provisions of Sections 310 through 318(a) of the Trust Indenture Act of 1939 and
the within  Indenture  between  Aon  Corporation  and U.S.  Bank Trust  National
Association, Trustee:

SECTION OF ACT                                              SECTION OF INDENTURE

310(a)(1) and (2)............................................   7.09
310(a)(3) and(4).............................................   Not applicable
310(b).......................................................   7.08 and 7.10(b)
310(c).......................................................   Not applicable
311(a) and (b)...............................................   7.13
311(c).......................................................   Not applicable
312(a).......................................................   5.01 and 5.02(a)
312(b) and (c)...............................................   5.02(b) and (c)
313(a).......................................................   5.04(a)
313(b)(1)....................................................   Not applicable
313(b)(2)....................................................   5.04(b)
313(c).......................................................   5.04(c)
313(d).......................................................   5.04(d)
314(a).......................................................   5.03
314(b).......................................................   Not applicable
314(c)(1) and (2)............................................   17.04
314(c)(3)....................................................   Not applicable
314(d).......................................................   Not applicable
314(e).......................................................   17.04
314(f).......................................................   Not applicable
315(a), (c) and (d)..........................................   7.01
315(b).......................................................   6.07
315(e).......................................................   6.08
316(a)(1)....................................................   6.01 and 6.06
316(a)(2)....................................................   Omitted
316(a) last sentence.........................................   8.04
316(b).......................................................   6.04
317(a).......................................................   6.02
317(b).......................................................   4.03(a)
318(a).......................................................   17.06


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

* This Cross-Reference Sheet is not part of the Indenture.


                                       -i-
<PAGE>
ARTICLE ONE- DEFINITIONS.....................................................-1-
Section 1.01. Definitions....................................................-1-

ARTICLE TWO - ISSUE, EXECUTION, REGISTRATION AND
EXCHANGE OF SECURITIES......................................................-11-
Section 2.01. Amount Unlimited; Issuable in Series..........................-11-
Section 2.02. Form of Trustee's
                Certificate of Authentication...............................-15-
Section 2.03. Form, Execution, Authentication,
                Delivery and Dating of Securities...........................-15-
Section 2.04. Denominations; Record Date....................................-17-
Section 2.05. Exchange and Registration of
                Transfer of Securities......................................-18-
Section 2.06. Temporary Securities..........................................-21-
Section 2.07. Mutilated, Destroyed, Lost or
                Stolen Securities...........................................-22-
Section 2.08.  Securities in Global Form....................................-24-
Section 2.09.  Cancellation.................................................-25-
Section 2.10.  Computation of Interest......................................-25-

ARTICLE THREE - REDEMPTION OF SECURITIES....................................-25-
Section 3.01. Redemption of Securities;
                Applicability of Article....................................-25-
Section 3.02. Notice of Redemption;
                Selection of Securities.....................................-25-
Section 3.03. Payment of Securities Called
                for Redemption..............................................-27-

ARTICLE FOUR - PARTICULAR COVENANTS OF THE COMPANY..........................-28-
Section 4.01. Payment of Principal, Premium, Interest and
                Additional Amounts..........................................-28-
Section 4.02. Offices for Notices and Payments, etc.  ......................-29-
Section 4.03. Provisions as to Paying Agent.................................-30-

ARTICLE FIVE - SECURITYHOLDER LISTS AND REPORTS BY THE
COMPANY AND THE TRUSTEE.....................................................-32-
Section 5.01. Securityholder Lists..........................................-32-
Section 5.02. Preservation and Disclosure of Lists..........................-32-
Section 5.03. Reports by the Company........................................-34-
Section 5.04. Reports by the Trustee........................................-35-

ARTICLE SIX - REMEDIES ON DEFAULT...........................................-37-
Section 6.01. Events of Default.............................................-37-
Section 6.02. Payment of Securities on Default;
                Suit Therefor...............................................-39-
Section 6.03. Application of Moneys Collected by Trustee....................-42-

                                      -ii-

<PAGE>
Section 6.04. Proceedings by Securityholders................................-43-
Section 6.05. Remedies Cumulative and Continuing............................-44-
Section 6.06. Direction of Proceedings......................................-44-
Section 6.07. Notice of Defaults............................................-45-
Section 6.08. Undertaking to Pay Costs......................................-45-
Section 6.09. Waiver of Past Defaults.......................................-46-

ARTICLE SEVEN - CONCERNING THE TRUSTEE......................................-46-
Section 7.01. Duties and Responsibilities of Trustee........................-46-
Section 7.02. Reliance on Documents, Opinions, etc..........................-48-
Section 7.03. No Responsibility for Recitals, etc...........................-49-
Section 7.04. Ownership of Securities or Coupons............................-49-
Section 7.05. Moneys to Be Held in Trust....................................-49-
Section 7.06. Compensation and Expenses of Trustee..........................-49-
Section 7.07. Officer's Certificate as Evidence.............................-50-
Section 7.08. Conflicting Interest of Trustee...............................-50-
Section 7.09. Eligibility of Trustee........................................-57-
Section 7.10. Resignation or Removal of Trustee.............................-58-
Section 7.11.  Acceptance by Successor Trustee..............................-59-
Section 7.12. Successor by Merger, etc......................................-61-
Section 7.13. Limitations on Rights of Trustee as Creditor..................-61-

ARTICLE EIGHT - CONCERNING THE SECURITYHOLDERS..............................-66-
Section 8.01. Action by Securityholders.....................................-66-
Section 8.02. Proof of Execution by Securityholders.........................-66-
Section 8.03. Who Are Deemed Absolute Owners................................-68-
Section 8.04. Company-owned Securities Disregarded..........................-68-
Section 8.05. Revocation of Consents; Future
                Securityholders Bound.......................................-68-

ARTICLE NINE- SECURITYHOLDERS' MEETINGS.....................................-69-
Section 9.01. Purposes of Meetings..........................................-69-
Section 9.02. Call of Meetings by Trustee...................................-69-
Section 9.03. Call of Meetings by Company or Securityholders................-70-
Section 9.04. Qualification for Voting......................................-71-
Section 9.05. Regulations...................................................-71-
Section 9.06. Voting........................................................-72-

ARTICLE TEN - SUPPLEMENTAL INDENTURES.......................................-72-
Section 10.01. Supplemental Indentures without Consent of
                 Securityholders............................................-72-
Section 10.02. Supplemental Indentures with Consent of
                 Securityholders............................................-74-
Section 10.03. Compliance with Trust Indenture Act; Effect of
                 Supplemental Indentures....................................-76-
Section 10.04. Notation on Securities.......................................-76-

ARTICLE ELEVEN - CONSOLIDATION, MERGER,

                                      -iii-

<PAGE>
CONVEYANCE, TRANSFER OR LEASE...............................................-77-
Section 11.01. Company May Consolidate, etc.,
                 Only on Certain Terms......................................-77-
Section 11.02.  Successor Corporation Substituted...........................-78-

ARTICLE TWELVE - SATISFACTION AND DISCHARGE OF INDENTURE
UNCLAIMED MONEYS............................................................-78-
Section 12.01. Discharge of Indenture.......................................-78-
Section 12.02. Deposited Moneys to Be Held in Trust by Trustee..............-79-
Section 12.03. Paying Agent to Repay Moneys Held............................-80-
Section 12.04. Return of Unclaimed Moneys...................................-80-

ARTICLE THIRTEEN - DEFEASANCE AND COVENANT DEFEASANCE.......................-80-
Section 13.01. Applicability of Article; Company's Option to
                 Effect Defeasance or Covenant Defeasance...................-80-
Section 13.02. Defeasance and Discharge.....................................-81-
Section 13.03. Covenant Defeasance..........................................-81-
Section 13.04. Conditions to Defeasance or
                 Covenant Defeasance........................................-82-
Section 13.05. Deposited Money and Government
                 Obligations to be Held in Trust; Other
                 Miscellaneous Provisions...................................-84-

ARTICLE FOURTEEN - SUBORDINATION............................................-85-
Section 14.01. Agreement to Subordinate.....................................-85-
Section 14.02. No Payment on Securities if Senior
                 Indebtedness in Default....................................-85-
Section 14.03. Distribution on Acceleration of Securities;
                 Dissolution and Reorganization;
                 Subrogation of Securities..................................-87-
Section 14.04. Reliance by Senior Indebtedness on
                 Subordination Provisions...................................-91-
Section 14.05. Trustee's Relation to Senior Indebtedness....................-91-
Section 14.06. Other Provisions Subject Hereto..............................-92-

ARTICLE FIFTEEN - CONVERSION................................................-93-
Section 15.01. Conversion Privilege.........................................-93-
Section 15.02. Conversion Procedure; Conversion Price;
                 Fractional Shares..........................................-93-
Section 15.03. Adjustment of Conversion Price for
                 Common Stock...............................................-94-
Section 15.04. Consolidation or Merger of the Company.......................-98-
Section 15.05. Notice of Adjustment.........................................-99-
Section 15.06. Notice in Certain Events.....................................-99-
Section 15.07. Company To Reserve Stock; Registration;
                            Listing........................................-100-
Section 15.08. Taxes on Conversion.........................................-101-
Section 15.09. Conversion After Record Date................................-101-

                                      -iv-
<PAGE>
Section 15.10. Corporate Action Regarding Par Value
                 of Common Stock...........................................-102-
Section 15.11. Company Determination Final.................................-102-
Section 15.12. Trustee's Disclaimer........................................-102-

ARTICLE SIXTEEN - IMMUNITY OF INCORPORATORS, STOCKHOLDERS
OFFICERS AND DIRECTORS.....................................................-103-
Section 16.01. Indenture and Securities Solely
                 Corporate Obligations.....................................-103-

ARTICLE SEVENTEEN - MISCELLANEOUS PROVISIONS...............................-103-
Section 17.01. Benefits of Indenture Restricted to
                 Parties and Securityholders...............................-103-
Section 17.02. Provisions Binding on Company's Successors..................-103-
Section 17.03. Addresses for Notices, etc..................................-103-
Section 17.04. Evidence of Compliance with Conditions
                 Precedent.................................................-104-
Section 17.05. Legal Holidays..............................................-104-
Section 17.06. Trust Indenture Act to Control..............................-105-
Section 17.07. Execution in Counterparts...................................-105-
Section 17.08. Illinois Contract...........................................-105-

                                       -v-
<PAGE>
                  THIS INDENTURE, dated as of the ____ day of ______ between Aon
Corporation,  a corporation  duly  organized and existing  under the laws of the
State of Delaware  (hereinafter  sometimes  called the "Company"),  party of the
first  part,  and U.S.  Trust Bank  National  Association,  a  national  banking
association(hereinafter sometimes called the "Trustee", which term shall include
any successor trustee appointed pursuant to Article Seven),  party of the second
part.


                                   WITNESSETH:

                  WHEREAS,  the Company deems it necessary to issue from time to
time for its lawful purposes securities (hereinafter called the "Securities" or,
in the singular,  "Security") evidencing its unsecured indebtedness and has duly
authorized  the  execution  and  delivery of this  Indenture  to provide for the
issuance of the  Securities  in one or more  series,  unlimited  as to principal
amount,  to bear such rates of interest,  to mature at such time or times and to
have such other provisions as shall be fixed as hereinafter provided; and

                  WHEREAS,  the  Company  represents  that all  acts and  things
necessary to present a valid  indenture  and  agreement  according to its terms,
have been done and  performed,  and the  execution of this  Indenture has in all
respects been duly authorized,  and the Company, in the exercise of legal rights
and power in it vested, is executing this Indenture;

                  NOW,  THEREFORE,  in order to declare the terms and conditions
upon  which the  Securities  are  authenticated,  issued  and  received,  and in
consideration of the premises,  of the purchase and acceptance of the Securities
by the  Holders  thereof  and of the sum of one  dollar  to it duly  paid by the
Trustee  at the  execution  of these  presents,  the  receipt  whereof is hereby
acknowledged,  the Company covenants and agrees with the Trustee,  for the equal
and  proportionate  benefit of the  respective  Holders from time to time of the
Securities, as follows:



                                   ARTICLE ONE
                                   DEFINITIONS

                  Section 1.01.  Definitions.  The terms defined in this Section
(except as herein otherwise  expressly  provided or unless the context otherwise
requires) for all purposes of this  Indenture and of any indenture  supplemental
hereto shall have the respective  meanings specified in this Section.  All other
terms used in this Indenture which are defined in the Trust Indenture

<PAGE>
Act of 1939 and the Securities Act of 1933, as amended,  shall have the meanings
(except as herein otherwise  expressly  provided or unless the context otherwise
requires)  assigned to such terms in the Trust Indenture Act of 1939 and in said
Securities Act as in force at the date of this Indenture as originally executed.


ADDITIONAL AMOUNTS

                  The  term  "Additional  Amounts"  shall  mean  any  additional
amounts  which are  required by a Security  or by or pursuant to a  supplemental
indenture or Board Resolution under circumstances  specified therein, to be paid
by the Company in respect of certain taxes,  assessments or governmental charges
imposed on certain  Holders of Securities and which are owing to such Holders of
Securities.


AUTHORIZED NEWSPAPER

                  The term  "Authorized  Newspaper" shall mean a newspaper in an
official  language of the country of publication  of general  circulation in the
place in connection  with which the term is used. If it shall be  impractical in
the opinion of the Trustee to make any publication of any notice required hereby
in an  Authorized  Newspaper,  any  publication  or other notice in lieu thereof
which is made or given with the  approval  of the  Trustee  shall  constitute  a
sufficient publication of such notice.


BOARD OF DIRECTORS

                  The  term  "Board  of  Directors"  shall  mean  the  Board  of
Directors of the Company,  the  Executive  Committee of the Company or any other
committee  duly  authorized to exercise the powers and authority of the Board of
Directors with respect to this Indenture or any security.


BOARD RESOLUTION

                  The term "Board Resolution" shall mean a resolution  certified
by the  Corporate  Secretary or any  Assistant  Secretary of the Company to have
been duly  adopted by, or pursuant to the  authority  of, the Board of Directors
and to be in full  force  and  effect  on the  date of such  certification,  and
delivered to the Trustee.

                                       -2-
<PAGE>
BUSINESS DAY

                  The term  "Business  Day"  shall  mean,  with  respect  to any
Security, a day (other than a Saturday or Sunday) that in the city (or in any of
the cities, if more than one) in which amounts are payable,  as specified on the
face of the form of such Security, is neither a legal holiday nor a day on which
banking  institutions are authorized or required by law, regulation or executive
order to close.


CLOSING PRICE

                  The term  "Closing  Price" of the Common  Stock shall mean the
last  reported  sale price of such stock as shown on the  Composite  Tape of the
NYSE (or, if such stock is not listed or admitted to trading on the NYSE, on the
principal national securities exchange on which such stock is listed or admitted
to  trading),  or, in case no such sale takes place on such day,  the average of
the closing bid and asked prices on the NYSE (or, if such stock is not listed or
admitted to trading on the NYSE, on the principal national  securities  exchange
on which such stock is listed or admitted to  trading),  or, if it is not listed
or admitted to trading on any national securities  exchange,  the average of the
closing  bid and  asked  prices  as  reported  by the  National  Association  of
Securities Dealers Automated Quotation System (NASDAQ),  or if such stock is not
so reported, the average of the closing bid and asked prices as furnished by any
member of the National  Association of Securities  Dealers,  Inc., selected from
time to time by the Company for that purpose.


COMMON DEPOSITARY

                  The term "Common  Depositary" shall have the meaning specified
in Section 2.06.


COMMON STOCK

                  The term "Common  Stock" shall mean the class of Common Stock,
par  value  $1.00  per  share,  of the  Company  authorized  at the date of this
Indenture  as  originally  signed,  or any other class of stock  resulting  from
successive  changes or  reclassifications  of such Common Stock, and in any such
case including any shares thereof  authorized  after the date of this Indenture,
and any other  shares of stock of the Company  which do not have any priority in
the payment of dividends or upon liquidation over any other class of stock.

                                       -3-
<PAGE>
COMPANY

                  The  term  "Company"  shall  mean  the  Person  named  as  the
"Company"  in  the  first  paragraph  of  this  instrument   until  a  successor
corporation shall have become such pursuant to the applicable provisions of this
Indenture, and thereafter "Company" shall mean such successor corporation.


COMPANY ORDER

                  The term  "Company  order" means a written order signed in the
name of the Company by the President or any Executive Vice President or any Vice
President or the  Treasurer  and by the  Corporate  Secretary  or any  Assistant
secretary.


CAPITALIZED LEASE OBLIGATION

                  The   term   "Capitalized   Lease   Obligation"   shall   mean
indebtedness  represented  by  obligations  under a lease that is required to be
capitalized  for  financial  reporting  purposes in  accordance  with  generally
accepted accounting  principles and the amount of such indebtedness shall be the
capitalized  amount  of such  obligations  determined  in  accordance  with such
principles.


CONVERSION AGENT

                  The term "Conversion  Agent" shall mean any Person  authorized
by the Company to receive Securities to be converted into Common Stock on behalf
of  the  Company.  The  Company  initially  authorizes  the  Trustee  to  act as
Conversion  Agent for the Securities on its behalf.  The Company may at any time
from time to time  authorize one or more Persons to act as  Conversion  Agent in
addition to or in place of the Trustee with respect to any series of  Securities
issued under this Indenture.


CONVERSION PRICE

                  The term  "Conversion  Price" shall mean,  with respect to any
series of Securities  which are  convertible  into Common  Stock,  the price per
share of Common Stock at which the  Securities of such series are so convertible
as set forth in the Board  Resolution  with  respect  to such  series (or in any
supplemental indenture entered into pursuant to Section 10.01(g) with respect

                                       -4-
<PAGE>
to such  series),  as the same may be adjusted  from time to time in  accordance
with Section 15.03 (or such supplemental indenture).


COUPON

                  The term "coupon" shall mean any interest coupon  appertaining
to a security.


COUPON SECURITY

                  The  term   "Coupon   Security"   shall   mean  any   security
authenticated and delivered with one or more coupons appertaining thereto.


COVENANT DEFEASANCE

                  The  term  "covenant   defeasance"   shall  have  the  meaning
specified in Section 13.03.


CURRENT MARKET PRICE

                  The term  "Current  Market  Price" on any date  shall mean the
average of the daily  Closing  Prices  per share of Common  Stock for any thirty
(30)  consecutive  Trading  Days  selected by the  Company  prior to the date in
question,  which thirty (30)  consecutive  Trading Day period shall not commence
more than  forty-five  (45) Trading Days prior to the day in question;  provided
that with respect to Section 15.03(3),  the "Current Market Price" of the Common
Stock  shall mean the  average of the daily  Closing  Prices per share of Common
Stock  for the five  (5)  consecutive  Trading  Days  ending  on the date of the
distribution  referred  to in Section  15.03(3)  (or if such date shall not be a
Trading Day, on the Trading Day immediately preceding such date).


DEFEASANCE

                  The term  "defeasance"  shall have the  meaning  specified  in
Section 13.02.


DESIGNATED SUBSIDIARY

                  The term "Designated Subsidiary" shall mean Combined
Insurance Company of America.

                                       -5-
<PAGE>
EVENT OF DEFAULT

                  The term "Event of Default" shall mean any event  specified as
such in Section 6.01.


GOVERNMENT OBLIGATION

                  The  term  "Government  Obligation"  shall  have  the  meaning
specified in section 13.04.


HOLDER

                  The terms "Holder",  "Holder of Securities",  "Securityholder"
or other similar terms,  shall mean (a) in the case of any Registered  Security,
the  person  in whose  name at the  time  such  Security  is  registered  on the
registration  books kept for that purpose in  accordance  with the terms hereof,
and (b) in the case of any Unregistered Security, the bearer of such Security.


INDENTURE

                  The term "Indenture"  shall mean this instrument as originally
executed  or as it may from time to time be  supplemented  or  amended by one or
more  indentures  supplemental  hereto  entered into pursuant to the  applicable
provisions hereof.


INTEREST

                  The term  "Interest"  shall  mean,  when used with  respect to
non-interest bearing Securities, interest payable on or after maturity.


INTEREST PAYMENT DATE

                  The term  "Interest  Payment  Date," when used with respect to
any Security,  means the stated  maturity of an  installment of interest on such
Security.

                                       -6-
<PAGE>
JUNIOR SUBORDINATED INDEBTEDNESS

                  The term  "Junior  Subordinated  Indebtedness"  shall mean (i)
indebtedness of the Company (whether outstanding on the date of the Indenture or
thereafter  created,  incurred,  assumed or  guaranteed  by the Company)  which,
pursuant to the terms of the  instrument  creating or  evidencing  the same,  is
subordinate to the Securities in right of payment or in rights upon  liquidation
and (ii)  indebtedness  under  the  junior  subordinated  indenture  dated as of
January 13, 1997, as supplemented, between the Company and The Bank of New York,
a New York banking corporation.


NYSE

                  The term "NYSE" shall mean the New York Stock Exchange.


OFFICERS' CERTIFICATE

                  The term  "Officers'  Certificate"  shall  mean a  certificate
signed  by the  Chairman  of the  Board of  Directors  or the  President  or any
Executive  Vice  President  or any Vice  President or the  Treasurer  and by the
Corporate Secretary or any Assistant Secretary.


OPINION OF COUNSEL

                  The term "Opinion of Counsel" shall mean an opinion in writing
signed by legal counsel,  who may be an employee for counsel to the Company,  or
who may be other counsel acceptable to the Trustee.


ORIGINAL ISSUE DISCOUNT SECURITIES

                  The term "Original Issue Discount  Securities"  shall mean any
Securities  which are initially  sold at a discount  from the  principal  amount
thereof and which  provide  upon Event of Default for  declaration  of an amount
less than the principal  amount thereof to be due and payable upon  acceleration
thereof.


OUTSTANDING

                  The  term   "Outstanding",   when  used  with   reference   to
Securities,  shall,  subject to the provisions of Section 8.01 and Section 8.04,
mean, as of any particular time, all Securities

                                       -7-
<PAGE>
authenticated and delivered by the Trustee under this Indenture,
except

                  (a)  Securities   theretofore   canceled  by  the  Trustee  or
delivered to the Trustee for cancellation;

                  (b)  Securities,  or  portions  thereof,  for the  payment  or
redemption of which moneys in the necessary  amount shall have been deposited in
trust with the  Trustee or with any paying  agent  (other  than the  Company) or
shall have been set aside and segregated in trust by the Company (if the Company
shall act as its own paying agent),  provided that if such  Securities are to be
redeemed prior to the maturity  thereof,  notice of such  redemption  shall have
been given as provided  in Article  Three,  or  provisions  satisfactory  to the
Trustee shall have been made for giving such notice;

                  (c) Securities in lieu of and in substitution  for which other
Securities shall have been  authenticated and delivered pursuant to the terms of
Section 2.07,  unless proof  satisfactory  to the Trustee is presented  that any
such  Securities are held by bona fide Holders in due course in whose hands such
Securities are valid obligations of the Company; and

                  (d)  Securities  which have been defeased  pursuant to Section
13.02.


PERSON

                  The term  "Person"  shall  mean any  individual,  corporation,
partnership,   joint   venture,   association,   joint-stock   company,   trust,
unincorporated organization or government or any agency or political subdivision
thereof.


PLACE OF PAYMENT

                  The term  "Place of  Payment,"  when used with  respect to the
Securities  of any  series,  means the  office or agency of the  Company  in the
Borough of Manhattan,  The City of New York,  designated  and  maintained by the
Company  pursuant  to  Section  4.02 and such  other  place or places  where the
principal of (and premium, if any) and interest (and Additional Amounts, if any)
on the  Securities  of that series are payable as specified as  contemplated  by
Section 2.01.

                                       -8-
<PAGE>
REGISTERED SECURITY

                  The  term  "Registered   Security"  shall  mean  any  Security
registered on the Security registration books of the Company.


REGULAR RECORD DATE

                  The term "Regular Record Date" for the interest payable on any
Interest  Payment Date on the  Securities of any series means the date specified
for that purpose as contemplated by Sections 2.01 and 2.04.


RESPONSIBLE OFFICER

                  The term  "responsible  officer" when used with respect to the
Trustee shall mean the chairman of the board of directors,  any vice chairman of
the board of  directors,  the  chairman  of the  executive  committee,  the vice
chairman of the executive  committee,  the president,  any vice  president,  the
cashier,  the  secretary,  the  treasurer,  any  senior  trust  officer or trust
officer,  any  assistant  vice  president,  or any other  officer of the Trustee
customarily  performing  functions similar to those performed by the persons who
at the time shall be such officers, respectively, or to whom any corporate trust
matter  is  referred  because  of his  knowledge  of and  familiarity  with  the
particular subject.


SECURITY REGISTER AND SECURITY REGISTRAR

                  The term "Security  Register" and "Security  Registrar"  shall
have the respective meanings specified in Section 2.05.


SENIOR INDEBTEDNESS

                  The term "Senior Indebtedness" shall mean the principal of and
interest (including, without limitation, any interest accruing subsequent to the
filing of a petition or other  action  concerning  bankruptcy  or other  similar
proceedings)  on the  following,  whether  presently  outstanding  or  hereafter
incurred: (a) all indebtedness of the Company (i) for money borrowed (other than
that evidenced by the Securities),  (ii) which is evidenced by a note, debenture
or similar instrument  (including a purchase money mortgage) given in connection
with the  acquisition  of any property or assets (other than  inventory or other
similar property acquired in the ordinary course of business), including

                                       -9-
<PAGE>
securities,  or (iii) for the payment of money  relating to a Capitalized  Lease
Obligation;  (b) any liabilities of others described in the preceding clause (a)
which the Company has guaranteed or which is otherwise its legal liability;  (c)
indebtedness  of the Company under interest rate swaps,  caps or similar hedging
agreements and foreign exchange contracts, currency swaps or similar agreements;
and  (d)  renewals,  extensions,  refundings,  restructurings,   amendments  and
modifications of any such indebtedness or guarantee. Notwithstanding anything to
the contrary in this Indenture or the Securities,  "Senior  Indebtedness"  shall
not include (w) any  indebtedness  of the  Company to a  subsidiary,  or (y) any
Junior Subordinated Indebtedness.

TRADING DAY

                  The term "Trading Day" shall mean,  with respect to the Common
Stock, so long as the Common Stock is listed or admitted to trading on the NYSE,
a day on which  the NYSE is open for the  transaction  of  business,  or, if the
Common  Stock is not listed or admitted  to trading on the NYSE,  a day on which
the principal national  securities  exchange on which the Common Stock is listed
is open for the  transaction  of  business,  or, if the  Common  Stock is not so
listed or admitted for trading on any  national  securities  exchange,  a day on
which NASDAQ is open for the transaction of business.


TRUST INDENTURE ACT OF 1939

                  Except as otherwise provided in Section 10.03, the term "Trust
Indenture Act of 1939" shall mean the Trust Indenture Act of 1939 as in force at
the date of this Indenture as originally executed.


UNITED STATES

                  The term  "United  States"  shall  mean the  United  States of
America,   its   territories,   possessions  and  other  areas  subject  to  its
jurisdiction, including the Commonwealth of Puerto Rico.


UNREGISTERED SECURITY

                  The term "Unregistered Security" shall mean any Security other
than a Registered Security.



                                      -10-
<PAGE>
U.S. DEPOSITARY

                  The term "U.S.  Depositary"  shall mean,  with  respect to the
Securities  of any series  issuable or issued in whole or in part in the form of
one  or  more  permanent  global  Securities,  the  Person  designated  as  U.S.
Depositary  by the Company  pursuant to Section  2.01,  which must be a clearing
agency registered under the Securities Exchange Act of 1934, as amended, until a
successor  U.S.  Depositary  shall have become such  pursuant to the  applicable
provisions of this Indenture,  and thereafter  "U.S.  Depositary"  shall mean or
include each Person who is then a U.S. Depositary hereunder,  and if at any time
there is more  than one  such  Person,  "U.S.  Depositary"  shall  mean the U.S.
Depositary with respect to the Securities of that series.


U.S. DOLLAR

                  The  term  "U.S.  Dollar"  or "$"  means  a  dollar  or  other
equivalent  unit in such coin or  currency  of the United  States as at the time
shall be legal tender of or the payment of public and private debts.


U.S. PERSON

                  The term "U.S. person" shall mean a citizen or resident of the
United States,  a corporation,  partnership or other entity created or organized
in or under the laws of the United States or any political  subdivision  thereof
or an estate or trust the income of which is subject  to United  States  Federal
income tax regardless of its source.


                                   ARTICLE TWO
                       ISSUE, EXECUTION, REGISTRATION AND
                             EXCHANGE OF SECURITIES

                  Section  2.01.  Amount  Unlimited;  Issuable  in  Series.  The
aggregate  principal  amount  of  Securities  which  may  be  authenticated  and
delivered under this Indenture is unlimited.

                  The  Securities  may be  issued in one or more  series.  There
shall be established in or pursuant to a Board  Resolution,  and set forth in an
Officers'  Certificate,  or established in one or more  indentures  supplemental
hereto, prior to the issuance of Securities of any series:


                                      -11-
<PAGE>
                  (1) the title of the  Securities  of the series  (which  shall
         distinguish the Securities of the series from all other Securities);

                  (2) any  limit  upon the  aggregate  principal  amount  of the
         Securities of the series which may be authenticated and delivered under
         this Indenture (except for Securities  authenticated and delivered upon
         registration  of transfer of, or in exchange  for, or in lieu of, other
         Securities of the series pursuant to Section 2.05,  2.06, 2.07, 3.02 or
         10.04);

                  (3) whether any Securities of the series are to be issuable in
         permanent  global form with or without  coupons and, if so, (a) whether
         beneficial  owners of interests in any such permanent  global  Security
         may exchange such  interests for  Securities of such series and of like
         tenor of any authorized  form and  denomination  and the  circumstances
         under which any such  exchanges may occur,  if other than in the manner
         provided in Section 2.05, and (b) the name of the Common  Depositary or
         the U.S.  Depositary,  as the case may be,  with  respect to any global
         Security;

                  (4) the date or dates on which the principal of the Securities
         of the series is payable;

                  (5) the rate or  rates,  which  may be fixed or  variable,  at
         which the Securities of the series shall bear interest,  if any, and if
         the rate is variable,  the manner of calculation  thereof,  the date or
         dates from which such interest shall accrue, the Interest Payment Dates
         on which such interest  shall be payable and, in the case of Registered
         Securities the Regular Record Date for the  determination of Holders of
         such  Securities  to whom  interest is payable on any Interest  Payment
         Date;

                  (6) the place or places (in  addition  to such place or places
         specified in this  Indenture)  where the principal of (and premium,  if
         any),  interest,  if any, and Additional Amounts, if any, on Securities
         of the series shall be payable;

                  (7) the period or periods within which, the price or prices at
         which and the terms and conditions upon which  Securities of the series
         may be  redeemed,  in whole or in part,  at the option of the  Company,
         pursuant to any sinking fund or otherwise;

                                      -12-
<PAGE>
                  (8) the  obligation,  if any,  of the  Company  to  redeem  or
         purchase  Securities  of the series  pursuant  to any  sinking  fund or
         analogous  provisions  or at the  option  of a Holder  thereof  and the
         period or periods  within  which,  the price or prices at which and the
         terms and  conditions  upon which  Securities  of the  series  shall be
         redeemed  or  purchased,   in  whole  or  in  part,  pursuant  to  such
         obligation,  and,  where  applicable,  the obligation of the Company to
         select the Securities to be redeemed;

                  (9) if other than U.S. Dollars, the currency or currencies, or
         units, including European Currency Units ("ECUs"),  based on or related
         to  currencies,  in  which  the  Securities  of  the  series  shall  be
         denominated  and in which  payments  of  principal  of, any  premium or
         interest  on,  and any  other  amounts  payable  with  respect  to such
         Securities shall or may be payable;

                  (10) the denominations in which Securities of the series shall
         be issuable,  if other than $1,000 or integral  multiples  thereof with
         respect to Registered and Unregistered Securities;

                  (11) if other than the principal  amount thereof,  the portion
         of the  principal  amount of  Securities  of the series  which shall be
         payable upon  declaration of  acceleration  of the maturity  thereof or
         which the Trustee shall be entitled to claim pursuant to Section 6.02;

                  (12)  if  other  than  Registered   Securities,   whether  the
         Securities of the series will be issuable as  Registered  Securities or
         Unregistered  Securities  (with  or  without  coupons),  or  both;  any
         restrictions  applicable to the offer, sale or delivery of Unregistered
         Securities;  if other than as provided for in Section  2.05,  the terms
         upon which  Unregistered  Securities of the series may be exchanged for
         Registered  Securities of such series and vice versa;  if other than as
         provided  for in Section  2.05 and Section  2.06,  the terms upon which
         Unregistered  Securities  shall be issued in definitive  form;  and, if
         other than as provided for in Section 4.02, the circumstances,  if any,
         under which payment on any Unregistered Security or coupon will be made
         upon presentation of such Unregistered  Security or coupon at an agency
         of the Company outside the United States or by transfer to an

                                      -13-
<PAGE>
         account in, or by mail to an address in, the United
         States;

                  (13) whether and under what circumstances the Company will pay
         Additional Amounts on the Securities of the series held by a person who
         is not a U.S. Person in respect of any tax,  assessment or governmental
         charge  withheld or deducted and, if so,  whether the Company will have
         the option to redeem such  Securities  rather than pay such  Additional
         Amounts;

                  (14) if either or both of  Section  13.02  and  Section  13.03
         shall be inapplicable to the Securities of the series (provided that if
         no such inapplicability shall be specified, then both Section 13.02 and
         Section 13.03 shall be applicable to the Securities of the series); and

                  (15) whether the series of  Securities is  convertible  and if
         Article  Fifteen shall be  applicable  to the  Securities of the series
         (provided that if convertability is not specified,  then the Securities
         of the series shall not be  convertible  and Article  Fifteen shall not
         apply;  and  provided  further  that if the  series  of  Securities  is
         convertible  and  if no  applicability  of  Article  Fifteen  shall  be
         specified,  then Article  Fifteen shall be applicable to the Securities
         of the Series).

                  (16) to provide  for the terms and  conditions  of  conversion
         into Common Stock of the Securities of any series which are convertible
         into  Common  Stock,  if  different  from  those set  forth in  Article
         Fifteen.

                  (17) any other terms of the series  (which  terms shall not be
         inconsistent with the provisions of this Indenture).

                  All  Securities  of any  one  series  shall  be  substantially
identical  except (i) as to denomination  and (ii) that Securities of any series
may be issuable as either Registered  Securities or Unregistered  Securities and
(iii) as may otherwise be provided in or pursuant to such Board  Resolution  and
set forth in such Officers'  Certificate  or in any such indenture  supplemental
hereto.

                  If any of the terms of the  series are  established  by action
taken pursuant to a Board  Resolution,  a copy of an appropriate  record of such
action shall be certified by the

                                      -14-
<PAGE>
Corporate  Secretary or any Assistant  Secretary of the Company and delivered to
the  Trustee  at the  same  time as or prior to the  delivery  of the  Officers'
Certificate setting forth the terms of the series.


                  SECTION 2.02. FORM OF TRUSTEE'S CERTIFICATE OF AUTHENTICATION.
The Trustee's certificate of authentication shall be in the following form:

                [FORM OF TRUSTEE'S CERTIFICATE OF AUTHENTICATION]

                  This is one of the Securities of the series designated therein
referred to in the within-mentioned Indenture.


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

                                   as Trustee,
                                    By......
                               Authorized Officer

                  SECTION 2.03. FORM,  EXECUTION,  AUTHENTICATION,  DELIVERY AND
DATING OF SECURITIES.  The Securities of each series and the coupons, if any, to
be  attached  thereto,  shall be in the forms  approved  from time to time by or
pursuant  to a  Board  Resolution,  or  established  in one or  more  indentures
supplemental hereto, and shall be printed,  lithographed,  engraved or otherwise
produced in such manner as the officers  executing  the same may  determine,  as
evidenced  by  their  execution  of such  securities.  Such  Securities  and the
coupons, if any, to be attached thereto may have such letters,  numbers or other
marks of identification or designation and such legends or endorsements printed,
lithographed,  engraved or  otherwise  produced  thereon as the Company may deem
appropriate and as are not  inconsistent  with the provisions of this Indenture,
or as may be required to comply with any law or with any rule or regulation made
pursuant  thereto or with any rule or regulation of any stock  exchange on which
the Securities may be listed, or to conform to usage.

                  Each  Security  and coupon  shall be executed on behalf of the
Company by its Chairman of the Board of  Directors  or its Vice  Chairman of the
Board of Directors or its President or any Executive  Vice President or any Vice
President and by its  Treasurer or any  Assistant  Treasurer or its Secretary or
any Assistant  Secretary,  under its Corporate  seal. Such signatures may be the
manual or facsimile  signatures of the present or any future such officers.  The
seal of the Company may be in the form

                                      -15-
<PAGE>
of a facsimile  thereof and may be  impressed,  affixed,  imprinted or otherwise
reproduced on the Securities.

                  Each  Security  and coupon  bearing  the  manual or  facsimile
signatures  of  individuals  who  were at any time the  proper  officers  of the
Company shall bind the Company,  notwithstanding that such individuals or any of
them have ceased to hold such offices prior to the  authentication  and delivery
of such Security,  or the Security to which such coupon appertains.  At any time
and from time to time after the  execution and delivery of this  Indenture,  the
Company may deliver Securities of any series executed by the Company and, in the
case of Coupon Securities,  having attached thereto appropriate  coupons, to the
Trustee for authentication, together with a Company Order for the authentication
and delivery of such Securities, and the Trustee in accordance with such Company
order shall  authenticate and deliver such  Securities.  If the form or terms of
the Securities or coupons of the series have been  established in or pursuant to
one or more Board  Resolutions as permitted by this Section and Section 2.01, in
authenticating  such Securities,  and accepting the additional  responsibilities
under this  Indenture  in relation  to such  Securities,  the  Trustee  shall be
entitled to receive,  and (subject to Section 7.01) shall be fully  protected in
relying upon, an opinion of Counsel stating:

                  (a) if the  form  of  such  Securities  or  coupons  has  been
established  by or pursuant to Board  Resolution  as permitted by Section  2.01,
that such form has been  established  in conformity  with the provisions of this
Indenture;

                  (b) if the terms of such Securities  have been  established by
or pursuant to Board  Resolution as permitted by Section  2.01,  that such terms
have been established in conformity with the provisions of this Indenture; and

                  (c) that each such Security and coupon, when authenticated and
delivered  by the Trustee and issued by the Company in the manner and subject to
any conditions  specified in such opinion of Counsel,  will constitute valid and
legally binding  obligations of the Company,  enforceable in accordance with its
terms, subject to bankruptcy, insolvency,  reorganization,  moratorium and other
laws of general  applicability  relating  to or  affecting  the  enforcement  of
creditors' rights and to general equity principles.

If such form or terms has been so established, the Trustee shall not be required
to authenticate such Securities if the issue of such Securities pursuant to this
Indenture will affect the Trustee's own rights,  duties or immunities  under the
Securities

                                      -16-
<PAGE>
and the Indenture or otherwise in a manner which is not reasonably acceptable to
the Trustee.

                  Notwithstanding  the  provisions  of  Section  2.01 and of the
immediately  preceding  paragraph,  if all  Securities of a series are not to be
originally  issued  at one  time,  it shall  not be  necessary  to  deliver  the
Officers' Certificate otherwise required pursuant to Section 2.01 or the Company
Order and opinion of Counsel  otherwise  required  pursuant  to the  immediately
preceding  paragraph at or prior to the time of  authentication of each Security
of such series if such documents are delivered at or prior to the authentication
upon original issuance of the first Security of such series to be issued.

                  Every  Registered  Security  shall  be  dated  the date of its
authentication.  Each  Unregistered  Security  shall be dated as  provided in or
pursuant  to the Board  Resolution  or  supplemental  indenture  referred  to in
Section  2.01 or,  if no such  terms  are  specified,  the date of its  original
issuance.

                  No  Security  shall be  entitled  to any  benefit  under  this
Indenture or be valid or obligatory for any purpose unless there appears on such
Security a certificate of authentication  substantially in the form provided for
herein executed by the Trustee by manual  signature,  and such  certificate upon
any Security  shall be conclusive  evidence,  and the only  evidence,  that such
Security has been duly authenticated and delivered  hereunder and is entitled to
the benefits of this Indenture.

                  SECTION 2.04. DENOMINATIONS; RECORD DATE. The Securities shall
be  issuable  as  Registered  Securities  or  Unregistered  Securities  in  such
denominations  as may be  specified  as  contemplated  in Section  2.01.  In the
absence of any such  specification  with respect to any series,  such Securities
shall be issuable as Registered securities in the denominations  contemplated by
Section 2.01.

                  The term  "record  date" as used with  respect to an  Interest
Payment Date (except a date for payment of defaulted  interest)  shall mean such
day or days as shall be specified in the terms of the  Registered  Securities of
any particular series as contemplated by Section 2.01; provided,  however,  that
in the absence of any such  provisions  with  respect to any  series,  such term
shall mean (a) the last day of the calendar  month next  preceding such Interest
Payment Date if such  Interest  Payment Date is the  fifteenth day of a calendar
month; or (b) the fifteenth day of a calendar month next preceding such Interest
Payment Date if such Interest Payment Date is the first day of

                                      -17-
<PAGE>
the calendar month; provided, further, that if the day which would be the record
date as provided herein shall be a day on which banking institutions in the City
of  Chicago  or the  City of New  York  are  authorized  by law or  required  by
executive order to close,  then it shall mean the next preceding day which shall
not be a day on which such institutions are so authorized or required to close.

                  The person in whose name any Registered Security is registered
at the close of business on the Regular  Record Date with respect to an Interest
Payment  Date shall be entitled to receive the interest  payable and  Additional
Amounts,  if any,  payable on such  Interest  Payment Date  notwithstanding  the
cancellation of such Registered  Security upon any transfer or exchange  thereof
subsequent to such Regular Record Date and prior to such Interest  Payment Date;
provided,  however,  that if and to the extent the Company  shall default in the
payment of the interest and  Additional  Amounts,  if any, due on such  Interest
Payment Date,  such  defaulted  interest and Additional  Amounts,  if any, shall
cease to be payable to the Holder on such Regular  Record Date and may either be
paid to the  persons  in  whose  names  Outstanding  Registered  Securities  are
registered at the close of business on a subsequent  record date  established by
notice given by mail by or on behalf of the Company to the Holders of Securities
of the series in default not less than fifteen days  preceding  such  subsequent
record date,  such record date to be not less than five days  preceding the date
of  payment  of such  defaulted  interest,  or be paid at any time in any  other
lawful manner.

                  SECTION  2.05.   EXCHANGE  AND  REGISTRATION  OF  TRANSFER  OF
SECURITIES.  Registered  Securities  of any series may be  exchanged  for a like
aggregate  principal  amount  of  Registered   Securities  of  other  authorized
denominations  of such series.  Registered  Securities to be exchanged  shall be
surrendered  at the  office or agency to be  designated  and  maintained  by the
Company for such purpose in the City of Chicago or the Borough of Manhattan, The
City of New York, in  accordance  with the  provisions of Section 4.02,  and the
Company  shall  execute and  register  and the Trustee  shall  authenticate  and
deliver in exchange  therefor the Registered  Security or Registered  Securities
which the Holder making the exchange shall be entitled to receive.

                  If the Securities of any series are issued in both  registered
and unregistered  form, except as otherwise  specified pursuant to Section 2.01,
at the option of the Holder thereof,  Unregistered  Securities of any series may
be exchanged for Registered Securities of such series of any authorized

                                      -18-
<PAGE>
denominations and of a like aggregate  principal amount,  upon surrender of such
Unregistered  Securities to be exchanged at the agency of the Company that shall
be  maintained  for such purpose in accordance  with Section 4.02,  with, in the
case of  Unregistered  Securities  that are  Coupon  Securities,  all  unmatured
coupons and all matured coupons in default thereto  appertaining.  At the option
of the Holder thereof,  if  Unregistered  Securities of any series are issued in
more than one authorized denomination, except as otherwise specified pursuant to
Section 2.01,  such  Unregistered  Securities may be exchanged for  Unregistered
Securities  of such  series  of  other  authorized  denominations  and of a like
aggregate principal amount, upon surrender of such Unregistered Securities to be
exchanged at the agency of the Company that shall be maintained for such purpose
in accordance with Section 4.02 or as specified  pursuant to Section 2.01, with,
in the case of Unregistered Securities that are coupon securities, all unmatured
coupons  and  all  matured  coupons  in  default  thereto  appertaining.  Unless
otherwise  specified  pursuant to Section  2.01,  Registered  Securities  of any
series may not be exchanged for Unregistered Securities of such series. Whenever
any Securities are so surrendered for exchange,  the Company shall execute,  and
the Trustee shall  authenticate  and deliver,  the  Securities  which the Holder
making the exchange is entitled to receive.

                  The  Company   (or  its   designated   agent  (the   "SECURITY
REGISTRAR"))  shall keep,  at such office or agency,  a Security  Register  (the
"SECURITY REGISTER") in which, subject to such reasonable  regulations as it may
prescribe, the Company shall register securities and shall register the transfer
of Registered Securities as in this Article Two provided.  The Security Register
shall be in written  form or in any other form capable of being  converted  into
written  form within a reasonable  time.  At all  reasonable  times the Security
Register shall be open for inspection by the Trustee.  Upon due  presentment for
registration  of transfer of any Registered  Security of a particular  series at
such office or agency, the Company shall execute and the Company or the Security
Registrar shall register and the Trustee shall  authenticate  and deliver in the
name of the transferee or  transferees a new  Registered  Security or Registered
Securities  of such series for an equal  aggregate  principal  amount and stated
maturity.

                  Unregistered  Securities  (except  for  any  temporary  bearer
Securities) and coupons shall be transferable by delivery.

                  All Securities  presented for  registration of transfer or for
exchange, Redemption or payment, as the case may be, shall

                                      -19-
<PAGE>
(if so  required  by the  Company or the  Trustee)  be duly  endorsed  by, or be
accompanied  by  a  written  instrument  or  instruments  of  transfer  in  form
satisfactory  to the Company and the Trustee duly executed by, the Holder or his
attorney duly authorized in writing.

                  Notwithstanding  the foregoing,  except as otherwise specified
as  contemplated  by  Section  2.01,  any  permanent  global  Security  shall be
exchangeable  only as provided in this  paragraph.  If the beneficial  owners of
interests in a permanent global Security are entitled to exchange such interests
for Securities of such series and of like tenor and principal  amount of another
authorized form and denomination,  as specified and as subject to the conditions
contemplated  by Section 2.01, then without  unnecessary  delay but in any event
not later than the earliest  date on which such  interests  may be so exchanged,
the Company shall deliver to the Trustee definitive Securities of that series in
aggregate  principal  amount  equal to the  principal  amount of such  permanent
global Security, executed by the Company. On or after the earliest date on which
such interests may be so exchanged,  such permanent  global  Securities shall be
surrendered from time to time by the Common  Depositary or the U.S.  Depositary,
as the case may be, and in accordance with instructions given to the Trustee and
the Common  Depositary or the U.S.  Depositary,  as the case may be, as shall be
specified  in the Company  order with  respect  thereto to the  Trustee,  as the
Company's  agent for such  purpose,  to be exchanged,  in whole or in part,  for
definitive  Securities  of the same series  without  charge.  The Trustee  shall
authenticate  and make  available for delivery,  in exchange for each portion of
such surrendered permanent global Security, a like aggregate principal amount of
definitive Securities of the same series of authorized denominations and of like
tenor as the portion of such  permanent  global  Security to be exchanged  which
shall be in the form of the Securities of such series;  provided,  however, that
no such exchanges may occur during a period beginning at the opening of business
fifteen  days  before  the day of the  mailing  of a  notice  of  Redemption  of
Securities of that series  selected for Redemption  under Article III and ending
at the close of business on the day of such mailing. Promptly following any such
exchange  in part,  such  permanent  global  Security  shall be  returned by the
Trustee to the Common Depositary or the U.S. Depositary,  as the case may be, or
such other Common Depositary or U.S.  Depositary referred to above in accordance
with the  instructions  of the Company  referred to above.  If a Security in the
form  specified  for such  series is issued in  exchange  for any  portion  of a
permanent  global  Security  after the close of business at the office or agency
where such exchange  occurs on any Regular Record Date and before the opening of
business at such office or agency

                                      -20-
<PAGE>
on the relevant Interest Payment Date, such interest will not be payable on such
Interest Payment Date in respect of such Security in the form specified for such
series,  but will be payable on such Interest Payment Date only to the Person to
whom interest in respect of such portion of such  permanent  global  Security is
payable in accordance with the provisions of this Indenture.

                  All  Securities  issued upon any  registration  of transfer or
exchange of Securities shall be the valid obligation of the Company,  evidencing
the same debt,  and entitled to the same benefits under this  Indenture,  as the
securities surrendered upon such registration of transfer or exchange.

                  No  service   charge   shall  be  made  for  any  exchange  or
registration of transfer of Registered  Securities,  but the Company may require
payment of a sum sufficient to cover any tax or other  governmental  charge that
may be imposed in connection therewith.

                  The  Company  shall not be  required to exchange or register a
transfer of (a) any Registered  Securities of any series for a period of fifteen
days next preceding any selection of such  Registered  Securities of such series
to be redeemed,  or (b) any Security of any such series  selected for Redemption
except,  in the case of any such  series to be  redeemed  in part,  the  portion
thereof not to be so redeemed.

                  Notwithstanding  anything herein or in the terms of any series
of securities to the contrary,  neither the Company nor the Trustee (which shall
rely on an Officers' Certificate and an opinion of Counsel) shall be required to
exchange any  Unregistered  Security for a Registered  Security or vice versa if
such exchange  would result in adverse  Federal income tax  consequences  to the
Company  (including  the inability of the Company to deduct from its income,  as
computed  for  Federal  income  tax  purposes,   the  interest  payable  on  any
Securities) under then applicable United States Federal income tax laws.

                  SECTION 2.06. TEMPORARY SECURITIES. Pending the preparation of
definitive  securities  of any series,  the Company may execute and upon Company
Order the Trustee shall  authenticate and deliver  temporary  Securities of such
series (printed,  lithographed,  typewritten or otherwise  produced).  Temporary
Securities of any series shall be issuable in any authorized denominations,  and
in the form approved from time to time by or pursuant to a Board  Resolution but
with  such  omissions,  insertions  and  variations  as may be  appropriate  for
temporary Securities, all as may be determined by the officers executing

                                      -21-
<PAGE>
such temporary Securities, such determination to be evidenced by such execution.
Every temporary  Security shall be executed by the Company and be  authenticated
by the Trustee upon the same  conditions and in  substantially  the same manner,
and with  like  effect,  as the  definitive  Securities.  Except  in the case of
temporary  Securities  in  global  form  (which,  except as  otherwise  provided
pursuant to Section 2.01,  shall be exchanged in accordance  with the provisions
of Section 2.05),  without unnecessary delay the Company shall execute and shall
furnish  definitive  Securities  of  such  series  evidenced  by  the  temporary
Securities  and  thereupon any or all  temporary  Registered  Securities of such
series may be surrendered in exchange  therefor  without charge at the office or
agency to be  designated  and  maintained by the Company for such purpose in the
City of Chicago or the Borough of Manhattan, The City of New York, in accordance
with the provisions of Section 4.02 and in the case of  Unregistered  Securities
at any agency  maintained by the Company for such purpose as specified  pursuant
to Section 2.01, and the Trustee shall  authenticate and deliver in exchange for
such  temporary  Securities an equal  aggregate  principal  amount of definitive
Securities of the same series and stated  maturity of  authorized  denominations
and in the case of such Securities that are Coupon  Securities,  having attached
thereto the appropriate coupons.  Until so exchanged the temporary Securities of
any series  shall be  entitled  to the same  benefits  under this  Indenture  as
definitive  Securities of such series.  The  provisions of this Section 2.06 are
subject  to any  restrictions  or  limitations  on the  issue  and  delivery  of
temporary Unregistered Securities of any series that may be established pursuant
to Section 2.01.

                  If  temporary  Securities  of any  series are issued in global
form,  any such temporary  global  Security  shall,  unless  otherwise  provided
therein  pursuant to Section 2.01, be delivered to the office of a depositary or
common  depositary  (the  "COMMON  DEPOSITARY")  for  credit  to the  respective
accounts of the beneficial  owners of such Securities (or to such other accounts
as they may direct).

                  SECTION 2.07. MUTILATED, DESTROYED, LOST OR STOLEN SECURITIES.
In case any temporary or definitive  Security of any series or, in the case of a
Coupon Security,  any coupon appertaining thereto,  shall become mutilated or be
destroyed,  lost or stolen,  the Company in the case of a mutilated  Security or
coupon shall, and in the case of a lost, stolen or destroyed  Security or coupon
may, in its  discretion,  execute,  and upon  Company  Order the  Trustee  shall
authenticate and deliver,  a new Security of the same series and stated maturity
as the mutilated,

                                      -22-
<PAGE>
destroyed,  lost or stolen Security or, in the case of a Coupon Security,  a new
Coupon Security of the same series as the mutilated,  destroyed,  lost or stolen
Coupon  Security or, in the case of a coupon,  a new Coupon Security of the same
series as the Coupon Security to which such mutilated, destroyed, lost or stolen
coupon  appertains,  bearing  a number  not  contemporaneously  outstanding,  in
exchange  and  substitution  for the  mutilated  Security,  or in lieu of and in
substitution  for the Security so  destroyed,  lost or stolen or in exchange for
the Coupon  Security to which such mutilated,  destroyed,  lost or stolen coupon
appertains, with all appurtenant coupons not destroyed, lost or stolen. In every
case the  applicant  for a  substituted  Security or coupon shall furnish to the
Company and to the Trustee such security or indemnity as may be required by them
to save each of them harmless, and, in every case of destruction, loss or theft,
the applicant  shall also furnish to the Company and to the Trustee  evidence to
their satisfaction of the destruction, loss or theft of such Security or coupon,
as the case may be, and of the ownership  thereof.  The Trustee may authenticate
any such  substituted  Security and deliver the same upon the written request or
authorization  of  any  officer  of  the  Company.  Upon  the  issuance  of  any
substituted  Security  or coupon,  the  Company may require the payment of a sum
sufficient to cover any tax or other governmental  charge that may be imposed in
relation  thereto and any other expenses  connected  therewith and in addition a
further  sum  not   exceeding  ten  dollars  for  each  security  so  issued  in
substitution.  In case any  security or coupon  which has matured or is about to
mature shall become mutilated or be destroyed,  lost or stolen, the company may,
instead of issuing a substituted  Security,  pay or authorize the payment of the
same (without  surrender  thereof except in the case of a mutilated  Security or
coupon) if the  applicant  for such  payment  shall  furnish the Company and the
Trustee with such security or indemnity as they may require to save each of them
harmless  and,  in  case  of  destruction,   loss  or  theft,  evidence  to  the
satisfaction of the Company of the  destruction,  loss or theft of such Security
or coupon and of the ownership thereof.

                  Every  substituted  Security  with,  in the  case of any  such
Security  that  is a  Coupon  Security,  its  coupons,  issued  pursuant  to the
provisions  of this Section by virtue of the fact that any Security or coupon is
destroyed,  lost or stolen  shall,  with  respect  to such  Security  or coupon,
constitute an additional contractual  obligation of the Company,  whether or not
the destroyed, lost or stolen Security or coupon shall be found at any time, and
shall  be  entitled  to  all  the  benefits  of  this   Indenture   equally  and
proportionately with any and all other Securities,  and the coupons appertaining
thereto, duly issued hereunder.

                                      -23-
<PAGE>
                  All Securities and any coupons  appertaining  thereto shall be
held and owned upon the express  condition  that the  foregoing  provisions  are
exclusive with respect to the  replacement  or payment of mutilated,  destroyed,
lost or stolen  Securities and coupons  appertaining  thereto and shall,  to the
extent  permitted  by law,  preclude  any  and all  other  rights  or  remedies,
notwithstanding any law or statute existing or hereafter enacted to the contrary
with respect to the  replacement  or payment of negotiable  instruments or other
securities without their surrender.

                  SECTION  2.08.  SECURITIES  IN GLOBAL FORM. If Securities of a
series are issuable in global form,  as  specified  as  contemplated  by Section
2.01,  then,  notwithstanding  the provisions of Section 2.01, any such Security
shall  represent such of the  Outstanding  Securities of such series as shall be
specified  therein and may provide that it shall represent the aggregate  amount
of  Outstanding  Securities  from  time to time  endorsed  thereon  and that the
aggregate amount of Outstanding  Securities represented thereby may from time to
time be reduced to reflect  exchanges.  Any  endorsement of a Security in global
form to reflect the  amount,  or any  increase  or  decrease  in the amount,  of
Outstanding  Securities represented thereby shall be made by the Trustee in such
manner and upon instructions  given by such Person as shall be specified therein
or in the Company Order to be delivered to the Trustee  pursuant to Section 2.03
or Section 2.06.  Subject to the  provisions of Section 2.03 and, if applicable,
Section 2.06,  the Trustee shall deliver and redeliver any security in permanent
global form in the manner and upon  instructions,  given by the Person specified
therein or in the  applicable  Company  Order.  If a Company  Order  pursuant to
Section 2.03 or 2.06 has been, or simultaneously is, delivered, any instructions
by the Company  with  respect to  endorsement  or delivery  or  redelivery  of a
Security in global  form shall be in writing  but need not comply  with  Section
17.04 and need not be accompanied by an opinion of Counsel.

                  The  provisions  of Section  2.09 shall apply to any  Security
represented  by a Security in global form if such  Security was never issued and
sold by the  Company and the  Company  delivers  to the Trustee the  Security in
global form together with written instructions (which need not be accompanied by
an opinion of Counsel) with regard to the  reduction in the principal  amount of
Securities represented thereby.

                  Notwithstanding   the  provisions  of  Section  2.04,   unless
otherwise  specified as contemplated  by Section 2.01,  payment of principal of,
any premium and interest on, and any other amounts

                                      -24-
<PAGE>
payable with  respect to any Security in permanent  global form shall be made to
the Person specified therein.

                  Notwithstanding  the  provisions of Section 8.03 and except as
provided in the preceding  paragraph,  the Company, the Trustee and any agent of
the Company and the Trustee shall treat a Person as the Holder of such principal
amount of Outstanding  Securities  represented by a permanent global Security as
shall be specified in a written statement of the Holder of such permanent global
security.

                  SECTION 2.09.  CANCELLATION.  All Securities  surrendered  for
payment,  Redemption,  exchange or  registration  of  transfer,  and all coupons
surrendered  for  payment,  as the case may be,  shall,  if  surrendered  to the
Company  or any agent of the  Company or of the  Trustee,  be  delivered  to the
Trustee  and  promptly  canceled by it or, if  surrendered  to the  Trustee,  be
canceled by it, and no  securities  or coupons  shall be issued in lieu  thereof
except as expressly  permitted by any of the provisions of this  Indenture.  The
Trustee shall destroy canceled  Securities and coupons and deliver a certificate
of  destruction  to the Company or, if requested to do so by the Company,  shall
return such canceled Securities and coupons to the Company.

                  SECTION  2.10.  COMPUTATION  OF INTEREST.  Except as otherwise
specified as contemplated by Section 2.01 for securities of any series, interest
on the  Securities  of each  series  shall be computed on the basis of a 360-day
year of twelve 30-day months.

                                  ARTICLE THREE
                            REDEMPTION OF SECURITIES

                  SECTION  3.01.  REDEMPTION  OF  SECURITIES;  APPLICABILITY  OF
ARTICLE.  Redemption of Securities of any series as permitted or required by the
terms  thereof  shall be made in  accordance  with such terms and this  Article;
provided,  however,  that if any  provision  of any series of  Securities  shall
conflict  with any  provision of this  Article,  the provision of such series of
Securities shall govern.

                  Notice date for a Redemption of Securities shall mean the date
on which notice of such Redemption is given in accordance with the provisions of
Section 3.02 hereof.

                  SECTION 3.02.  NOTICE OF REDEMPTION;  SELECTION OF SECURITIES.
In case the Company shall desire to exercise the right to redeem all, or, as the
case may be, any part of a series

                                      -25-
<PAGE>
of Securities pursuant to the terms and provisions applicable to such series, it
shall fix a date for  Redemption  and shall mail a notice of such  Redemption at
least thirty and not more than sixty days prior to the date fixed for Redemption
to the Holders of the securities  and, in the case of Securities in global form,
to the Common  Depositary  or the U.S.  Depositary,  as the case may be, of such
series which are  Registered  Securities to be redeemed as a whole or in part at
their last addresses as the same appear on the Security  Register.  Such mailing
shall be by prepaid  first class mail.  Any notice which is mailed in the manner
herein provided shall be conclusively  presumed to have been duly given, whether
or not the Holder shall have received such notice. In any case,  failure to give
notice by mail,  or any defect in the notice to the Holder of any  Security of a
series  designated  for  Redemption  as a whole or in part  shall not affect the
validity of the  proceedings  for the  Redemption of any other  Security of such
series.

                  Notice of Redemption to the Holders of Unregistered Securities
to be redeemed as a whole or in part,  who have filed their names and  addresses
with the Trustee as described in Section 5.04,  shall be given by mailing notice
of such Redemption,  by first class mail, postage prepaid,  at least thirty days
and not more than sixty days  prior to the date  fixed for  Redemption,  to such
Holders at such  addresses as were so furnished to the Trustee (and, in the case
of any such notice given by the Company, the Trustee shall make such information
available to the Company for such  purpose).  Notice of  Redemption to any other
Holder of an  Unregistered  Security  of, such series  shall be  published in an
Authorized Newspaper in the Borough of Manhattan, The City of New York and in an
Authorized  Newspaper in London,  in each case,  once in each of two  successive
calendar weeks,  the first  publication to be not less than thirty nor more than
sixty days prior to the date fixed for Redemption. Any notice which is mailed in
the manner  herein  provided  shall be  conclusively  presumed to have been duly
given,  whether or not the Holder shall have received such notice.  In any case,
failure to give notice by mail, or any defect in the notice to the Holder of any
Security of a series  designated  for Redemption as a whole or in part shall not
affect the validity of the  proceedings for the Redemption of any other Security
of such series.

                  Each such notice of  Redemption  shall  specify the date fixed
for  Redemption,  the  Redemption  price  at  which  such  Securities  are to be
redeemed,  the Place of Payment, that payment will be made upon presentation and
surrender  of such  Securities  and,  in the case of Coupon  Securities,  of all
coupons appertaining thereto maturing after the date fixed for Redemption,  that
interest and Additional Amounts, if any, accrued

                                      -26-
<PAGE>
to the date fixed for  Redemption  will be paid as  specified in said notice and
that on and after said date interest, if any, thereon or on the portions thereof
to be redeemed  will cease to accrue.  If less than all of the  Securities  of a
series are to be redeemed,  any notice of Redemption  published in an Authorized
Newspaper  shall specify the numbers of the  Securities to be redeemed.  In case
any  Security  is to be redeemed in part only,  the notice of  Redemption  shall
state the portion of the principal amount thereof to be redeemed and shall state
that, upon surrender of such Security, a new Security or Securities in principal
amount  equal to the  unredeemed  portion  thereof  will be  issued  of the same
series.

                  Prior  to the  Redemption  date  specified  in the  notice  of
Redemption given as provided in this Section,  the Company will deposit in trust
with the Trustee or with one or more paying agents (or, if the Company is acting
as its own paying  agent,  segregate  and hold in trust as  provided  in Section
4.03) an amount of money  sufficient  to redeem on the  Redemption  date all the
Securities or portions of Securities so called for Redemption at the appropriate
Redemption price,  together with accrued interest, if any, to the date fixed for
Redemption. The Company will give the Trustee notice of each Redemption at least
forty-five days prior to the date fixed for Redemption  (unless a shorter notice
is acceptable to the Trustee) as to the aggregate principal amount of securities
to be redeemed.

                  If less  than  all of the  Securities  of a  series  are to be
redeemed,  the Trustee shall select,  pro rata or by lot or in such other manner
as it shall  deem  reasonable  and fair,  the  numbers of the  Securities  to be
redeemed  in whole  or in part;  provided  that in case the  Securities  of such
series have different terms and maturities,  the Securities to be redeemed shall
be selected by the  Company  and the  Company  shall give notice  thereof to the
Trustee.

                  SECTION 3.03. PAYMENT OF SECURITIES CALLED FOR REDEMPTION.  If
notice  of  Redemption  has been  given as above  provided,  the  Securities  or
portions of  Securities  with  respect to which such notice has been given shall
become due and  payable  on the date and at the Place of Payment  stated in such
notice at the applicable  Redemption price,  together with interest, if any (and
Additional  Amounts,  if any), accrued to the date fixed for Redemption,  and on
and after said date  (unless  the Company  shall  default in the payment of such
Securities  at the  Redemption  price,  together  with  interest,  if  any,  and
Additional  Amounts, if any, accrued to said date) interest on the Securities or
portions of Securities so called for Redemption shall cease to accrue. On

                                      -27-
<PAGE>
presentation  and  surrender of such  Securities  subject to  Redemption at said
Place of Payment in said notice specified,  the said Securities or the specified
portions  thereof  shall be paid and  redeemed by the Company at the  applicable
Redemption price,  together with interest,  if any, and Additional  Amounts,  if
any,  accrued  thereon to the date fixed for Redemption.  Interest,  if any (and
Additional  Amounts,  if  any),  maturing  on or prior  to the  date  fixed  for
Redemption shall continue to be payable (but without interest thereon unless the
Company  shall default in payment  thereof) in the case of Coupon  securities to
the bearers of the coupons for such interest upon surrender thereof,  and in the
case of Registered  Securities to the Holders thereof  registered as such on the
Security  Register  on  the  relevant  record  date  subject  to the  terms  and
provisions of Section 2.04. At the option of the Company  payment may be made by
check to (or to the order of) the  Holders of the  Securities  or other  persons
entitled thereto against presentation and surrender of such Securities.

                  If any Coupon Security surrendered for Redemption shall not be
accompanied  by all  appurtenant  coupons  maturing  after  the date  fixed  for
Redemption, the surrender of such missing coupon or coupons may be waived by the
Company and the Trustee,  if there be furnished to each of them such security or
indemnity as they may require to save each of them harmless.

                  Upon  presentation of any Security  redeemed in part only, the
Company  shall  execute and the Trustee  shall  authenticate  and deliver to the
Holder thereof,  at the expense of the Company,  a new Security or Securities of
the same series and stated maturity, of authorized  denominations,  in aggregate
principal amount equal to the unredeemed portion of the Security so presented.


                                  ARTICLE FOUR
                       PARTICULAR COVENANTS OF THE COMPANY

                  SECTION  4.01.  PAYMENT OF  PRINCIPAL,  PREMIUM,  INTEREST AND
ADDITIONAL AMOUNTS. The Company will duly and punctually pay or cause to be paid
the  principal  of (and  premium,  if any),  interest,  if any,  and  Additional
Amounts, if any, on each of the Securities at the place, at the respective times
and in the manner provided in the terms of the Securities and in this Indenture.
The interest on Coupon Securities  (together with any Additional  Amounts) shall
be payable only upon  presentation and surrender of the several coupons for such
interest  installments as are evidenced  thereby as they severally  mature.  The
interest,

                                      -28-
<PAGE>
if any,  on any  temporary  bearer  Securities  (together  with  any  Additional
Amounts) shall be paid, as to the installments of interest  evidenced by coupons
attached thereto, if any, only upon presentation and surrender thereof,  and, as
to the other  installments of interest,  if any, only upon  presentation of such
Securities for notation thereon of the payment of such interest. The interest on
Registered  Securities  (together with any Additional  Amounts) shall be payable
only to or upon the written  order of the  Holders  thereof and at the option of
the Company may be paid by mailing  checks for such interest  payable to or upon
the order of such Holders at their last addresses as they appear on the Security
Register for such Securities.

                  SECTION 4.02.  OFFICES FOR NOTICES AND PAYMENTS,  ETC. As long
as any of the  Securities  of a series  remain  outstanding,  the  Company  will
designate and maintain, in the City of Chicago and the Borough of Manhattan, The
City of New York,  an office or agency where the  Registered  Securities of such
series may be presented for registration of transfer and for exchange as in this
Indenture provided, an office or agency where notices and demands to or upon the
Company in respect of the  Securities of such series or of this Indenture may be
served,  and an office or agency  where the  securities  of such  series  may be
presented  for  payment.  The  Company  will give to the  Trustee  notice of the
location  of each  such  office  or agency  and of any  change  in the  location
thereof. In case the Company shall fail to maintain any such office or agency in
the City of Chicago and the Borough of Manhattan, The City of New York, or shall
fail to give  such  notice of the  location  or of any  change  in the  location
thereof,  presentations may be made and notices and demands may be served at the
corporate  trust  office of the  Trustee in the City of Chicago  and the Company
hereby  appoints  the  Trustee as its agent to receive  all such  presentations,
notices and demands.

                  If Unregistered Securities of any series are Outstanding,  the
Company will maintain or cause the Trustee to maintain one or more agencies in a
city or cities  located  outside the United States  (including any city in which
such an  agency  is  required  to be  maintained  under  the  rules of any stock
exchange  on  which  the  Securities  of such  series  are  listed)  where  such
Unregistered  Securities,  and  coupons,  if any,  appertaining  thereto  may be
presented for payment.  Except as provided  pursuant to Section 2.01, no payment
on any  Unregistered  Security or coupon will be made upon  presentation of such
Unregistered  Security or coupon at an agency of the  Company  within the United
States nor will any  payment be made by transfer to an account in, or by mail to
an address in, the United States.  Notwithstanding  the  foregoing,  payments in
U.S. Dollars with respect to

                                      -29-
<PAGE>
Unregistered Securities of any series and coupons appertaining thereto which are
payable in U.S.  Dollars may be made at an agency of the Company  maintained  in
the City of Chicago  and the Borough of  Manhattan,  The City of New York if the
full amount of such  payment in U.S.  Dollars at each agency  maintained  by the
Company outside the United States for payment on such Unregistered Securities is
illegal  or  effectively   precluded  by  exchange  controls  or  other  similar
restrictions.

                  The Company may also from time to time  designate  one or more
other  offices or  agencies  where the  Securities  of one or more series may be
presented or surrendered  for any or all such purposes and may from time to time
rescind  such  designations;  provided,  however,  that no such  designation  or
rescission  shall in any  manner  relieve  the  Company  of its  obligations  to
maintain  an office or agency in each place of  payment  for  Securities  of any
Series for such  purposes.  The Company will give prompt  written  notice to the
Trustee of any such  designation or rescission and of any change in the location
of any such other office or agency.

                  The Company hereby initially designates _____________________,
located at  ________________________,  ______,  ______________  ________  as the
Security  Registrar  and as the  office or agency of the  Company in the City of
Chicago,  where the  Securities may be presented for payment and, in the case of
Registered Securities,  for registration of transfer and for exchange as in this
Indenture  provided  and where  notices  and  demands to or upon the  Company in
respect of the Securities of any series or of this Indenture may be served.

                  SECTION 4.03.  PROVISIONS AS TO PAYING AGENT. (a) Whenever the
Company  shall appoint a paying agent other than the Trustee with respect to the
Securities of any series, it will cause such paying agent to execute and deliver
to the Trustee an  instrument  in which such agent shall agree with the Trustee,
subject to the provisions of this Section,

                  (1) that it will hold  sums  held by it as such  agent for the
         payment of the principal of (and premium, if any), interest, if any, or
         Additional  Amounts,  if any, on the Securities of such series in trust
         for the benefit of the Holders of the  Securities  of such  series,  or
         coupons appertaining  thereto, as the case may be, entitled thereto and
         will notify the Trustee of the receipt of sums to be so held,

                                      -30-
<PAGE>
                  (2) that it will give the Trustee notice of any failure by the
         Company (or by any other  obligor on the  securities of such series) to
         make any payment of the principal of (or premium, if any), interest, if
         any, or Additional  Amounts,  if any, on the  Securities of such series
         when the same shall be due and payable, and

                  (3) at any time during the  continuance  of any such  default,
         upon the written  request of the Trustee,  forthwith pay to the Trustee
         all sums so held in trust by such paying agent.

                  (b) If the Company shall act as its own paying agent, it will,
on or before each due date of the principal of (and premium, if any),  interest,
if any,  or  Additional  Amounts,  if any, on the  Securities  of any series set
aside,  segregate  and hold in  trust  for the  benefit  of the  Holders  of the
Securities  of  such  series  entitled  thereto  a sum  sufficient  to pay  such
principal (and premium,  if any),  interest,  if any, or Additional  Amounts, if
any,  so  becoming  due.  The Company  will  promptly  notify the Trustee of any
failure to take such action.

                  (c) Whenever the Company  shall have one or more paying agents
for any series of Securities,  it will,  prior to each due date of the principal
of (and premium,  if any),  interest,  if any, or Additional Amounts, if any, on
any  Securities of that series,  deposit with a paying agent a sum sufficient to
pay such  principal  (and premium,  if any), or interest,  if any, or Additional
Amounts,  if any, so becoming  due, such sum to be held in trust for the benefit
of the Persons entitled to such principal, premium or interest, and (unless such
paying agent is the Trustee) the Company will promptly notify the Trustee of its
action or failure so to act.

                  (d) Anything in this Section to the contrary  notwithstanding,
the Company may, at any time,  for the purpose of obtaining a  satisfaction  and
discharge  with respect to one or more or all series of this  Indenture,  or for
any other reason,  pay or cause to be paid to the Trustee all sums held in trust
by it or any paying agent hereunder as required by this Section, such sums to be
held by the Trustee upon the trusts herein contained.

                  (e) Anything in this Section to the contrary  notwithstanding,
the  agreement  to hold sums in trust as provided in this  Section is subject to
the provisions of Sections 12.02 and 12.03.

                                      -31-
<PAGE>
                                  ARTICLE FIVE
                     SECURITYHOLDER LISTS AND REPORTS BY THE
                             COMPANY AND THE TRUSTEE

                  SECTION 5.01.  SECURITYHOLDER LISTS. The Company covenants and
agrees that it will furnish or cause to be furnished to the Trustee with respect
to the Securities of each series:

                  (a)  semi-annually,  not later than each Interest Payment Date
(in the case of any series having  semi-annual  Interest  Payment  Dates) or not
later than the dates  determined  pursuant  to Section  2.01 (in the case of any
series not having  semi-annual  Interest  Payment Dates) a list, in such form as
the Trustee may reasonably require, of the names and addresses of the Holders of
Securities  of such  series as of the  Regular  Record Date (or as of such other
date as may be  determined  pursuant to Section 2.01 for such series)  therefor,
and

                  (b) at such other times as the Trustee may request in writing,
within thirty days after  receipt by the Company of any such request,  a list in
such form as the Trustee may  reasonably  require of the names and  addresses of
the Holders of Securities of the particular  series  specified by the Trustee as
of a date not more  than  fifteen  days  prior to the time such  information  is
furnished;  provided,  however,  that if and so long as the Trustee shall be the
Security  Registrar any such list shall exclude names and addresses  received by
the Trustee in its capacity as Security Registrar,  and if and so long as all of
the Securities of any series are Registered  Securities,  such list shall not be
required to be furnished.


                  SECTION 5.02. PRESERVATION AND DISCLOSURE OF LISTS.

                  (a) The  Trustee  shall  preserve,  in as current a form as is
reasonably  practicable,  all  information  as to the names and addresses of the
Holders of each series of Securities contained in the most recent list furnished
to it as provided in section  5.01 or received by the Trustee in its capacity as
Security Registrar. The Trustee may destroy any list furnished to it as provided
in Section 5.01 upon receipt of a new list so furnished.

                  (b) In case three or more Holders of  Securities  (hereinafter
referred to as "applicants")  apply in writing to the Trustee and furnish to the
Trustee reasonable proof that each

                                      -32-
<PAGE>
such  applicant has owned a Security of such series for a period of at least six
months preceding the date of such application,  and such application states that
the  applicants'  desire to  communicate  with other  Holders of Securities of a
particular  series (in which case the  applicants  must hold  Securities of such
series) or with  Holders of all  Securities  with  respect to their rights under
this  Indenture or under such  Securities and it is accompanied by a copy of the
form of proxy or other  communication which such applicants propose to transmit,
then the  Trustee  shall,  within five  Business  Days after the receipt of such
application, at its election, either

                  (1)  afford  to  such  applicants  access  to the  information
preserved  at the time by the  Trustee  in  accordance  with the  provisions  of
subsection (a) of this Section, or

                  (2) inform such  applicants  as to the  approximate  number of
         Holders of Securities of such series or all Securities, as the case may
         be, whose names and addresses  appear in the  information  preserved at
         the  time  by  the  Trustee,  in  accordance  with  the  provisions  of
         subsection  (a) of  this  Section,  and as to the  approximate  cost of
         mailing   to  such   Securityholders   the   form  of  proxy  or  other
         communication, if any, specified in such application.

                  If the Trustee  shall  elect not to afford to such  applicants
access to such information,  the Trustee shall, upon the written request of such
applicants,  mail to each Holder of such series or all  Securities,  as the case
may be, whose name and address appear in the  information  preserved at the time
by the Trustee in  accordance  with the  provisions  of  subsection  (a) of this
Section a copy of the form of proxy or other communication which is specified in
such request,  with reasonable  promptness  after a tender to the Trustee of the
material to be mailed and of  payment,  or  provision  for the  payment,  of the
reasonable  expenses of mailing,  unless within five days after such tender, the
Trustee shall mail to such  applicants and file with the Securities and Exchange
Commission,  together  with a copy  of the  material  to be  mailed,  a  written
statement to the effect that, in the opinion of the Trustee,  such mailing would
be contrary to the best interests of the Holders of Securities of such series or
all Securities,  as the case may be, or would be in violation of applicable law.
Such  written  statement  shall  specify  the  basis  of such  opinion.  If said
Commission, after opportunity for a hearing upon the objections specified in the
written statement so filed, shall enter an order refusing to sustain any of such
objections  or if,  after the entry of an order  sustaining  one or more of such
objections,  said  Commission  shall  find,  after  notice and  opportunity  for
hearing, that all the objections so sustained

                                      -33-
<PAGE>
have been met,  and shall enter an order so  declaring,  the Trustee  shall mail
copies of such material to all such Holders with reasonable promptness after the
entry of such order and the renewal of such tender;  otherwise the Trustee shall
be  relieved  of any  obligation  or duty to such  applicants  respecting  their
application.

                  (c) Each and every  Holder of  Securities,  by  receiving  and
holding the same,  agrees with the  Company  and the  Trustee  that  neither the
Company nor the Trustee nor any agent of the Company or of the Trustee  shall be
held  accountable by reason of the disclosure of any such  information as to the
names  and  addresses  of the  Holders  of  Securities  in  accordance  with the
provisions  of  subsection  (b) of this  Section,  regardless of the source from
which such  information  was  derived,  and that the  trustee  shall not be held
accountable  by reason of mailing any material  pursuant to a request made under
said subsection (b).

                  SECTION 5.03. REPORTS BY THE COMPANY. The Company covenants:


                  (a) to file with the  Trustee  within  fifteen  days after the
Company  is  required  to  file  the  same  with  the  Securities  and  Exchange
Commission,  copies of the annual reports and of the information,  documents and
other  reports  (or  copies of such  portions  of any of the  foregoing  as said
Commission may from time to time by rules and regulations  prescribe)  which the
Company may be required to file with said  Commission  pursuant to Section 13 or
Section 15(d) of the Securities  Exchange Act of 1934; or, if the Company is not
required to file  information,  documents or reports  pursuant to either of such
sections, then to file with the Trustee and said Commission,  in accordance with
rules and regulations  prescribed from time to time by said Commission,  such of
the supplementary and periodic  information,  documents and reports which may be
required  pursuant  to  Section  13 of the  Securities  Exchange  Act of 1934 in
respect of a security listed and registered on a national securities exchange as
may be prescribed from time to time in such rules and regulations;

                  (b) to file with the Trustee and the  Securities  and Exchange
Commission, in accordance with the rules and regulations prescribed from time to
time by said Commission,  such additional  information,  documents,  and reports
with respect to  compliance  by the Company with the  conditions  and  covenants
provided  for in this  Indenture  as may be  required  from time to time by such
rules and regulations;

                                      -34-
<PAGE>
                  (c) to transmit by mail to all the  Holders of  Securities  of
each series,  as the names and addresses of such Holders  appear on the Security
Register,  within  thirty days after the filing  thereof with the Trustee,  such
summaries of any information,  documents and reports required to be filed by the
Company with respect to each such series  pursuant to subsections (a) and (b) of
this Section as may be required by rules and regulations prescribed from time to
time by the Securities and Exchange Commission; and

                  (d) If Unregistered  Securities of any series are Outstanding,
to file with the listing  agent of the Company  with respect to such series such
documents and reports of the Company as may be required from time to time by the
rules  and  regulations  of  any  stock  exchange  on  which  such  Unregistered
Securities are listed.

                  SECTION  5.04.  REPORTS BY THE TRUSTEE.  (a) On or before July
15, and on or before July 15 of each year thereafter,  so long as any Securities
of any series are  Outstanding  hereunder,  the  Trustee  shall  transmit to the
Holders of  Securities  of such series,  as provided in  subsection  (c) of this
Section,  a brief report (if required by Section  313(a) of the Trust  Indenture
Act of 1939) dated as of the preceding May 15, with respect to:

                  (1) its eligibility under Section 7.09, and its qualifications
         under Section 7.08, or in lieu thereof, if to the best of its knowledge
         it has continued to be eligible and qualified  under such  Sections,  a
         written statement to such effect;

                  (2) the  character  and  amount  of any  advances  (and if the
         Trustee elects so to state,  the  circumstances  surrounding the making
         thereof)  made by the Trustee (as such) which remain unpaid on the date
         of such  report,  and for the  reimbursement  of which it claims or may
         claim a lien  or  charge,  prior  to  that  of the  Securities,  on any
         property or funds held or collected  by it as Trustee,  except that the
         Trustee  shall not be required  (but may elect) to report such advances
         if such advances so remaining  unpaid  aggregate not more than one-half
         of one percent of the principal amount of the Securities for any series
         outstanding on the date of such report;

                  (3) the amount,  interest rate, and maturity date of all other
         indebtedness owing by the Company (or by

                                      -35-
<PAGE>
         any other obligor on the  Securities)  to the Trustee in its individual
         capacity,  on the date of such report,  with a brief description of any
         property held as collateral  security therefor,  except an indebtedness
         based upon a creditor  relationship  arising in any manner described in
         paragraphs (2), (3), (4), or (6) of subsection (b) of Section 7.13;

                  (4)  the  property  and  funds,  if  any,  physically  in  the
         possession of the Trustee as such on the date of such report;

                  (5) any additional issue of Securities of such series which it
         has not previously reported; and

                  (6) any action taken by the Trustee in the  performance of its
         duties under this Indenture  which it has not  previously  reported and
         which in its opinion materially  affects the Securities,  except action
         in respect of a default,  notice of which has been or is to be withheld
         by it in accordance with the provisions of Section 6.07.

                  (b) The Trustee shall  transmit to the Holders of  Securities,
as provided in subsection  (c) of this  Section,  a brief report with respect to
the character and amount of any advances (and if the Trustee elects so to state,
the circumstances  surrounding the making thereof) made by the Trustee (as such)
since the date of the last  report  transmitted  pursuant to the  provisions  of
subsection  (a)  of  this  Section  (or  if no  such  report  has  yet  been  so
transmitted,   since  the  date  of  execution  of  this  Indenture),   for  the
reimbursement  of which it claims or may claim a lien or charge prior to that of
the  Securities  of any series on property or funds held or  collected  by it as
Trustee,  and which it has not previously  reported  pursuant to this subsection
(b),  except that the Trustee  for each  series  shall not be required  (but may
elect) to report such  advances if such  advances  remaining  unpaid at any time
aggregate  ten percent or less of the principal  amount of  Securities  for such
series  outstanding at such time,  such report to be  transmitted  within ninety
days after such time.

                  (c) Reports  pursuant to this Section shall be  transmitted by
mail:

                           (i)      to all Holders of Registered Securities,
                  as the names and addresses of such Holders appear
                  upon the Security Register;

                                      -36-
<PAGE>
                           (ii) to such  other  Holders of  Securities  as have,
                  within two years  preceding  such  transmission,  filed  their
                  names and addresses with the Trustee for that purpose; and

                           (iii) to each  Holder of a  Security  whose  name and
                  address are  preserved  at the time by the Trustee as provided
                  in Section 5.02.

                  (d) A copy of each  such  report  shall,  at the  time of such
transmission  to Holders of Securities of a particular  series,  be filed by the
Trustee with each stock  exchange  upon which the  Securities of such series are
listed and also with the Securities and Exchange Commission.  The Company agrees
to notify the Trustee when and as the  Securities of any series become listed on
any stock exchange.


                                   ARTICLE SIX
                               REMEDIES ON DEFAULT

                  SECTION  6.01.  EVENTS OF DEFAULT.  In case one or more of the
following  Events of Default with respect to a particular  series of  Securities
shall have occurred and be continuing:

                  (a) default in the payment of the principal of (or premium, if
any, on) any of the  Securities of such series as and when the same shall become
due  and  payable  either  at  maturity,  upon  redemption,  by  declaration  or
otherwise; or

                  (b) default in the payment of any installment of interest,  if
any, or in the payment of any  Additional  Amount upon any of the  Securities of
such series as and when the same shall become due and payable,  and  continuance
of such default for a period of thirty days; or

                  (c)  failure  on the part of the  Company  duly to  observe or
perform any other of the  covenants or  agreements on the part of the Company in
this  Indenture  applicable  to Securities of such series for a period of ninety
days after the date on which  written  notice of such failure,  specifying  such
failure  and  requiring  the  Company to remedy the same and  stating  that such
notice is a "Notice of Default" hereunder,  shall have been given to the Company
by the  Trustee,  or to the  Company  and the Trustee by the Holders of at least
twenty-five  percent in aggregate  principal  amount of the  Securities  of such
series at the time Outstanding; or

                                      -37-
<PAGE>
                  (d) a court having  jurisdiction in the premises shall enter a
decree or order for  relief in respect of the  Company  in an  involuntary  case
under  any  applicable  bankruptcy,  insolvency  or  other  similar  law  now or
hereafter in effect, or appointing a receiver, liquidator,  assignee, custodian,
trustee,   sequestrator  (or  similar  official)  of  the  Company  or  for  any
substantial  part of its property,  or ordering the winding-up or liquidation of
its affairs and such decree or order shall  remain  unstayed and in effect for a
period of ninety days; or

                  (e) the  Company  shall  commence a  voluntary  case under any
applicable  bankruptcy,  insolvency  or other  similar law now or  hereafter  in
effect,  or shall consent to the entry of an order for relief in an  involuntary
case  under any such  law,  or shall  consent  to the  appointment  of or taking
possession by a receiver, liquidator, assignee, trustee, custodian, sequestrator
(or  similar  official)  of the  Company  or for  any  substantial  part  of its
property, or shall make any general assignment for the benefit of creditors; or

                  (f) any  other  Event of  Default  provided  with  respect  to
Securities of such series;

then in each and  every  such  case,  unless  the  principal  amount  of all the
Securities of such series shall have already become due and payable,  either the
Trustee  or the  Holders  of not less  than  twenty-five  percent  in  aggregate
principal amount of the Securities of such series then Outstanding, by notice in
writing  to the  Company  (and  to the  Trustee  if  given  by  Holders  of such
Securities)  may declare the principal  amount of all the  Securities  (or, with
respect to Original  Issue  Discount  Securities,  such lesser  amount as may be
specified in the terms of such  Securities) of such series to be due and payable
immediately,  and upon any such  declaration such principal amount (or specified
amount) shall become and shall be immediately due and payable,  any provision of
this  Indenture  or the  Securities  of such series  contained  to the  contrary
notwithstanding.   The  foregoing  provisions,   however,  are  subject  to  the
conditions  that if, at any time after the  principal of the  Securities  of any
series shall have been so declared  due and payable,  and before any judgment or
decree for the payment of the moneys due shall have been  obtained or entered as
hereinafter provided,  the Company shall pay or shall deposit with the Trustee a
sum sufficient to pay all matured  installments of interest,  if any, expand all
Additional  Amounts,  if any, due upon all the Securities of such series and the
principal of (and premium,  if any, on) all  Securities of such series (or, with
respect to Original  Issue  Discount  Securities,  such lesser  amount as may be
specified in the terms of such Securities), which shall have

                                      -38-
<PAGE>
become due otherwise  than by  acceleration  (with  interest,  if any, upon such
principal and premium,  if any, and, to the extent that payment of such interest
is enforceable  under  applicable  law, on overdue  installments of interest and
Additional  Amounts,  if any, at the same rate as the rate of interest specified
in the  Securities  of such  series,  as the case may be (or,  with  respect  to
Original  Issue  Discount  Securities at the rate specified in the terms of such
securities for interest on overdue principal  thereof upon maturity,  redemption
or acceleration of such series, as the case may be), to the date of such payment
or  deposit),  and  such  amount  as  shall be  sufficient  to cover  reasonable
compensation to the Trustee,  its agents,  attorneys and counsel,  and all other
expenses and liabilities incurred,  and all advances made, by the Trustee except
as a result of its  negligence or bad faith,  and any and all defaults under the
Indenture,  other than the  nonpayment of amounts which shall have become due by
acceleration,  shall have been remedied, then and in every such case the Holders
of a majority in aggregate  principal  amount of the  Securities  of such series
then  Outstanding,  by written  notice to the  Company and to the  Trustee,  may
rescind and annul such declaration and its consequences; provided no such waiver
or  rescission  and  annulment  shall extend to or shall  affect any  subsequent
default or shall impair any right consequent thereon.

                  In case the Trustee shall have  proceeded to enforce any right
under  this  Indenture  and such  proceedings  shall have been  discontinued  or
abandoned  because of such  rescission  and annulment or for any other reason or
shall have been determined adversely to the Trustee, then and in every such case
the  Company,  the Trustee and the  Holders of  Securities,  as the case may be,
shall be restored  respectively to their former positions and rights  hereunder,
and all rights,  remedies and powers of the Company, the Trustee and the Holders
of Securities,  as the case may be, shall continue as though no such proceedings
had been taken.

                  SECTION 6.02. PAYMENT OF SECURITIES ON DEFAULT; SUIT THEREFOR.
The Company  covenants  that (1) in case default shall be made in the payment of
any  installment of interest,  if any, on any of the Securities of any series or
any  Additional  Amounts in  payable  respect  of any of the  Securities  of any
series,  as and when the same shall  become due and  payable,  and such  default
shall have  continued  for a period of thirty days, or (2) in case default shall
be made in the payment of the  principal of (or premium,  if any, on) any of the
Securities  of any  series,  as and when  the same  shall  have  become  due and
payable,  whether  upon  maturity  of such  series  or upon  redemption  or upon
declaration or otherwise, then upon demand of the Trustee, the Company will pay

                                      -39-
<PAGE>
to the Trustee, for the benefit of the Holders of the Securities of such series,
and the coupons, if any, appertaining to such Securities,  the whole amount that
then shall have become due and payable on all such Securities of such series and
such  coupons,  for  principal  (and  premium,  if any) or interest,  if any, or
Additional  Amounts,  if any, as the case may be, with interest upon the overdue
principal (and premium, if any) and (to the extent that payment of such interest
is enforceable under applicable law) upon overdue  installments of interest,  if
any, and  Additional  Amounts,  if any, at the same rate as the rate of interest
specified in the  Securities of such series (or, with respect to Original  Issue
Discount  Securities,  at the rate specified in the terms of such Securities for
interest  on  overdue   principal   thereof   upon   maturity,   redemption   or
acceleration);  and,  in  addition  thereto,  such  further  amount  as shall be
sufficient  to  cover  reasonable  compensation  to  the  Trustee,  its  agents,
attorneys  and  counsel,  and all  other  reasonable  expenses  and  liabilities
incurred,  and all  advances  made,  by the  Trustee  except  as a result of its
negligence or bad faith.

                  In case the Company  shall fail  forthwith to pay such amounts
upon such  demand,  the  Trustee,  in its own name and as  trustee of an express
trust, shall be entitled and empowered to institute any action or proceedings at
law or in  equity  for the  collection  of the sums so due and  unpaid,  and may
prosecute any such action or  proceedings  to judgment or final decree,  and may
enforce any such  judgment or final decree  against the Company or other obligor
upon such  Securities  and  collect  in the  manner  provided  by law out of the
property of the Company or other obligor upon such Securities  wherever situated
the moneys adjudged or decreed to be payable.

                   In case there shall be pending proceedings for the bankruptcy
or for the reorganization of the Company or any other obligor upon Securities of
any series under Title 11 of the United States Code or any other applicable law,
or in case a receiver or trustee  shall have been  appointed for the property of
the  Company  or  such  other  obligor,  or in the  case of any  other  judicial
proceedings  relative to the Company or such other obligor,  or to the creditors
or property of the Company or such other obligor,  the Trustee,  irrespective of
whether the  principal  of the  Securities  of such series shall then be due and
payable as therein  expressed or by declaration or otherwise and irrespective of
whether the Trustee  shall have made any demand  pursuant to the  provisions  of
this  Section,  shall  be  entitled  and  empowered,  by  intervention  in  such
proceedings  or  otherwise,  to file and prove a claim or  claims  for the whole
amount of principal  (or, with respect to Original  Issue  Discount  Securities,
such portion of the principal amount as may be specified in the terms of that

                                      -40-
<PAGE>
series), and premium, if any, interest,  if any, and Additional Amounts, if any,
owing and unpaid in respect of the  Securities of such series,  and to file such
other  papers or documents as may be necessary or advisable in order to have the
claims of the Trustee  (including any claim for reasonable  compensation  to the
Trustee,  its  agents,  attorneys  and  counsel,  and for  reimbursement  of all
reasonable  expenses and  liabilities  incurred,  and all advances  made, by the
Trustee except as a result of its negligence or bad faith) and of the Holders of
the  Securities  and  coupons  of  such  series  allowed  in any  such  judicial
proceedings relative to the Company or other obligor upon the Securities of such
series,  or to the  creditors or property of the Company or such other  obligor,
and to collect and receive any moneys or other  property  payable or deliverable
on any such claims,  and to distribute all amounts  received with respect to the
claims of the Securityholders of such series and of the Trustee on their behalf;
and any receiver,  assignee or trustee in bankruptcy or reorganization is hereby
authorized by each of the Holders of the  Securities  and coupons of such series
to make payments to the Trustee and, in the event that the Trustee shall consent
to the making of payments directly to the Securityholders of such series, to pay
to  the  Trustee  such  amount  as  shall  be  sufficient  to  cover  reasonable
compensation to the Trustee,  its agents,  attorneys and counsel,  and all other
reasonable  expenses and  liabilities  incurred,  and all advances  made, by the
Trustee except as a result of its negligence or bad faith.

                  Nothing  herein  contained  shall be deemed to  authorize  the
Trustee  to  authorize  or consent to or accept or adopt on behalf of any Holder
any plan of reorganization, arrangement, adjustment or composition affecting the
Securities or the rights of any Holder  thereof,  or to authorize the Trustee to
vote in respect of the claim of any Holder in any such proceeding.

                  All  rights of  action  and of  asserting  claims  under  this
Indenture,  or under  any of the  Securities,  may be  enforced  by the  Trustee
without the possession of any of the Securities or coupons  appertaining to such
Securities, or the production thereof on any trial or other proceedings relative
thereto,  and any such action or proceedings  instituted by the Trustee shall be
brought in its own name and as trustee of an express trust,  and any recovery of
judgment  shall be for the ratable  benefit of the Holders of the  securities or
coupons  appertaining  thereto  in  respect  of  which  such  judgment  has been
recovered.

                  In  case  of a  default  hereunder  the  Trustee  may  in  its
discretion  proceed  to protect  and  enforce  the  rights  vested in it by this
Indenture by such  appropriate  judicial  proceedings  as the Trustee shall deem
most effectual to protect and enforce any of

                                      -41-
<PAGE>
such rights,  either at law or in equity or in bankruptcy or otherwise,  whether
for the specific  enforcement  of any  covenant or  agreement  contained in this
Indenture or in aid of the exercise of any power granted in this  Indenture,  or
to enforce  any other  legal or  equitable  right  vested in the Trustee by this
Indenture or by law.

                  SECTION 6.03.  APPLICATION OF MONEYS COLLECTED BY TRUSTEE. Any
moneys collected by the Trustee pursuant to Section 6.02 shall be applied in the
order  following,  at the date or dates fixed by the Trustee and, in case of the
distribution  of such moneys on account of  principal  (or  premium,  if any) or
interest,  if any, upon  presentation  of the several  Securities and coupons in
respect of which moneys have been collected,  and stamping  thereon the payment,
if only partially paid, and upon surrender thereof, if fully paid:

                  FIRST:            To the payment of reasonable costs and
expenses applicable to such series of collection, reasonable
compensation to the Trustee, its agents, attorneys and counsel,
and all other reasonable expenses and liabilities incurred, and
all advances made, by the Trustee except as a result of its
negligence or bad faith;

                  SECOND:  In case the principal of the Securities in respect of
which  moneys have been  collected  shall not have become due, to the payment of
interest,  if any, and  Additional  Amounts,  if any, on the  Securities of such
series in the order of the maturity of the  installments of such interest,  with
interest (to the extent that such  interest  has been  collected by the Trustee)
upon the  overdue  installments  of  interest  at the  same  rate as the rate of
interest, if any, and Additional Amounts, if any, specified in the Securities of
such series (or, with respect to Original Issue Discount Securities, at the rate
specified  in the terms of such  Securities  for  interest on overdue  principal
thereof upon  maturity,  Redemption or  acceleration),  such payments to be made
ratably to the persons entitled thereto,  without  discrimination or preference;
and

                  THIRD:  In case the principal of the  Securities in respect of
which  moneys have been  collected  shall have become  due,  by  declaration  or
otherwise,  to the  payment of the whole  amount  then owing and unpaid upon the
Securities of such series for principal (and premium, if any), interest, if any,
and Additional  Amounts,  if any, and (to the extent that such interest has been
collected by the Trustee)  upon overdue  installments  of interest,  if any, and
Additional  Amounts,  if any, at the same rate as the rate of interest specified
in the Securities of such

                                      -42-
<PAGE>
series (or,  with respect to Original  Issue  Discount  Securities,  at the rate
specified  in the terms of such  Securities  for  interest on overdue  principal
thereof upon  maturity,  Redemption  or  acceleration);  and in case such moneys
shall be insufficient to pay in full the whole amount so due and unpaid upon the
Securities of such series,  then to the payment of such  principal (and premium,
if any), interest, if any, and Additional Amounts, if any, without preference or
priority of principal and premium, if any, over interest, if any, and Additional
Amounts,  if any, or of interest,  if any, and Additional  Amounts, if any, over
principal and premium,  if any, or of any other Security of such series over any
other  Security of such series,  ratably to the aggregate of such  principal and
premium,  if any,  and  accrued  and unpaid  interest,  if any,  and  Additional
Amounts, if any.

                  SECTION 6.04. PROCEEDINGS BY SECURITYHOLDERS. No Holder of any
Security  of any series or of any  coupon  appertaining  thereto  shall have any
right by virtue or by availing of any  provision of this  Indenture to institute
any action or  proceedings  at law or in equity or in  bankruptcy  or otherwise,
upon or under or with respect to this  Indenture,  or for the  appointment  of a
receiver  or  trustee,  or for any other  remedy  hereunder,  unless such Holder
previously  shall have given to the Trustee written notice of default and of the
continuance  thereof, as hereinbefore  provided,  and unless also the Holders of
not  less  than  twenty-five  percent  in  aggregate  principal  amount  of  the
Securities of such series then Outstanding  shall have made written request upon
the Trustee to institute  such action or  proceedings in its own name as trustee
hereunder and shall have offered to the Trustee such reasonable  indemnity as it
may require against the costs,  expenses and liabilities to be incurred  therein
or thereby,  and the  Trustee  for sixty days after its receipt of such  notice,
request and offer of indemnity shall have failed to institute any such action or
proceedings and no direction  inconsistent  with such written request shall have
been given to the Trustee  pursuant to Section  6.06;  it being  understood  and
intended,  and being  expressly  covenanted  by the  taker  and  Holder of every
Security with every other taker and Holder and the Trustee,  that no one or more
Holders of Securities or coupons  appertaining to such Securities shall have any
right  in any  manner  whatever  by  virtue  of or by  availing  himself  of any
provision of this  Indenture to affect,  disturb or prejudice  the rights of any
other Holder of Securities or coupons  appertaining  to such  Securities,  or to
obtain or seek to obtain priority over or preference to any other such Holder or
to enforce any right under this Indenture,  except in the manner herein provided
and for the equal,  ratable and common  benefit of all Holders of Securities and
coupons. For the protection and enforcement of

                                      -43-
<PAGE>
the provisions of this Section,  each and every  Securityholder  and the Trustee
shall be entitled to such relief as can be given either at law or in equity.

                  Notwithstanding   any  other  provisions  in  this  Indenture,
however,  the right of any  Holder of any  Security  to  receive  payment of the
principal of (and premium, if any) and interest, if any, and Additional Amounts,
if any,  on such  Security  or  coupon,  on or after  the  respective  due dates
expressed in such Security or coupon,  or to institute suit for the  enforcement
of any such payment on or after such respective dates,  shall not be impaired or
affected  without the consent of such  Holder.  With  respect to Original  Issue
Discount  Securities,  principal  shall  mean  such  amount  as shall be due and
payable be specified in the terms of such Securities.

                  SECTION 6.05. REMEDIES  CUMULATIVE AND CONTINUING.  All powers
and  remedies  given by this  Article  Six to the  Trustee or to the  Holders of
Securities  or  coupons  shall,  to the  extent  permitted  by  law,  be  deemed
cumulative  and not exclusive of any thereof or of any other powers and remedies
available to the Trustee or the Holders of  Securities  or coupons,  by judicial
proceedings  or  otherwise,  to enforce the  performance  or  observance  of the
covenants and agreements  contained in this Indenture,  and no delay or omission
of the Trustee or of any Holder of any of the  Securities or coupons to exercise
any  right or power  accruing  upon any  default  occurring  and  continuing  as
aforesaid  shall  impair any such right or power or shall be  construed  to be a
waiver of any such  default  or an  acquiescence  therein;  and,  subject to the
provisions of Section 6.04,  every power and remedy given by this Article Six or
by law  to the  Trustee  or to the  Holders  of  Securities  or  coupons  may be
exercised from time to time, and as often as shall be deemed  expedient,  by the
Trustee or by the Holders of Securities or coupons, as the case may be.

                  SECTION  6.06.  DIRECTION  OF  PROCEEDINGS.  The  Holders of a
majority in aggregate  principal  amount of the  Outstanding  Securities  of any
series shall have the right to direct the time,  method, and place of conducting
any proceeding for any remedy available to the Trustee,  or exercising any trust
or power  conferred  on the  Trustee,  with  respect to the  Securities  of such
series; provided,  however, that (subject to the provisions of Section 7.01) the
Trustee  shall have the right to decline  to follow  any such  direction  if the
Trustee, being advised by counsel,  determines that the action or proceedings so
directed  may not lawfully be taken or if the Trustee in good faith by its board
of directors or executive committee or a trust committee of

                                      -44-
<PAGE>
directors or trustees  and/or  responsible  officers  shall  determine  that the
action or  proceedings  so  directed  would  involve  the  Trustee  in  personal
liability.

                  SECTION 6.07.  NOTICE OF DEFAULTS.  The Trustee shall,  within
ninety days after the  occurrence of a default with respect to the Securities of
any series, give notice of all defaults with respect to that series known to the
Trustee (i) if any Unregistered  Securities of that series are then Outstanding,
to the Holders thereof, by publication at least once in an Authorized  Newspaper
in the  Borough  of  Manhattan,  The City of New  York  and at least  once in an
Authorized  Newspaper in London,  (ii) if any  Unregistered  Securities  of that
series are then  Outstanding,  to all Holders thereof who have filed their names
and  addresses  with the Trustee as  described  in Section  5.04 by mailing such
notice  to such  Holders  at such  addresses  and (iii) to all  Holders  of then
Outstanding Registered Securities of that series, by mailing such notice to such
Holders at their addresses as they shall appear on the Security Register, unless
in each case  such  defaults  shall  have  been  cured  before  the  mailing  or
publication of such notice (the term  "defaults" for the purpose of this Section
being hereby defined to be the events specified in Sections  6.01(a),  (b), (c),
(d) and (e) and any  additional  events  specified in the terms of any series of
Securities  pursuant to Section 2.01,  not including  periods of grace,  if any,
provided for therein, and irrespective of the giving of written notice specified
in Section  6.01(c) or in the terms of any  Securities  established  pursuant to
Section 2.01);  and provided that,  except in the case of default in the payment
of the principal of or interest,  if any, premium or Additional Amounts, if any,
on any of the  Securities  of such  series,  the Trustee  shall be  protected in
withholding such notice if and so long as the board of directors,  the executive
committee,  or a trust  committee of directors  or  Responsible  Officers of the
Trustee in good faith  determines  that the withholding of such notice is in the
interests of the Holders of the Securities of such series.

                  SECTION 6.08.  UNDERTAKING  TO PAY COSTS.  All parties to this
Indenture agree, and each Holder of any Security by his acceptance thereof shall
be deemed to have agreed,  that any court may in its discretion  require, in any
suit for the enforcement of any right or remedy under this Indenture,  or in any
suit against the Trustee for any action  taken or omitted by it as Trustee,  the
filing by any party  litigant in such suit of an undertaking to pay the costs of
such suit, and that such court may in its discretion  assess  reasonable  costs,
including  reasonable  attorneys' fees, against any party litigant in such suit,
having due regard to the merits and good faith of the claims or defenses

                                      -45-
<PAGE>
made by such party litigant;  but the provisions of this Section shall not apply
to  any  suit  instituted  by  the  Trustee,  to  any  suit  instituted  by  any
Securityholder of any series, or group of such  Securityholders,  holding in the
aggregate more than ten percent in aggregate  principal amount of any Securities
of any  series,  or to  any  suit  instituted  by any  Securityholders  for  the
enforcement of the payment of the principal of (or premium,  if any),  interest,
if any, or Additional  Amounts, if any, on any Security on or after the due date
expressed in such Security.

                  SECTION 6.09. WAIVER OF PAST DEFAULTS. The Holders of not less
than a majority in principal amount of the Outstanding  Securities of any series
may on behalf of the Holders of all the Securities of such series waive any past
default  hereunder  with respect to such series and its  consequences,  except a
default

                  (1) in the  payment  of  the  principal  of,  any  premium  or
         interest  on, or any  Additional  Amounts  payable  with respect to any
         Security of such series; or

                  (2) in respect of a covenant or  provision  hereof which under
         Article Ten cannot be  modified  or amended  without the consent of the
         Holder of each Outstanding Security of such series affected.

                  Upon any such waiver,  such default shall cease to exist,  and
any Event of Default arising  therefrom shall be deemed to have been cured,  for
every purpose of this Indenture and the  Securities of such series;  but no such
waiver  shall  extend to any  subsequent  or other  default  or impair any right
consequent thereon.

                                  ARTICLE SEVEN
                             CONCERNING THE TRUSTEE

                  SECTION  7.01.  DUTIES AND  RESPONSIBILITIES  OF TRUSTEE.  The
Trustee,  except during the  continuance  of an Event of Default of a particular
series,  undertakes  to  perform  such  duties  and  only  such  duties  as  are
specifically  set  forth in this  Indenture.  In case an Event of  Default  with
respect to a  particular  series has occurred  (which has not been  cured),  the
Trustee  shall  exercise  such of the  rights  and  powers  vested in it by this
Indenture,  and use the same  degree of care and skill in their  exercise,  as a
prudent man would exercise or use under the  circumstances in the conduct of his
own affairs.

                                      -46-
<PAGE>
                  No provision of this  Indenture  shall be construed to relieve
the Trustee from  liability  for its own  negligent  action,  its own  negligent
failure to act, or its own willful misconduct, except that:

         (a) prior to the  occurrence  of an Event of Default  with respect to a
particular  series and after the curing of all Events of Default with respect to
such series which may have occurred:

                  (1) the duties and obligations of the Trustees with respect to
         such series shall be  determined  solely by the express  provisions  of
         this  Indenture,  and the  Trustee  shall not be liable  except for the
         performance  of such duties and  obligations  as are  specifically  set
         forth in this Indenture,  and no implied covenants or obligations shall
         be read into this Indenture against the Trustee; and

                  (2) in the  absence  of bad faith on the part of the  Trustee,
         the Trustee may  conclusively  rely, as to the truth of the  statements
         and  the  correctness  of the  opinions  expressed  therein,  upon  any
         certificates or opinions furnished to the Trustee and conforming to the
         requirements  of  this   Indenture;   but  in  the  case  of  any  such
         certificates or opinions which by any provision hereof are specifically
         required to be furnished to the Trustee,  the Trustee  shall be under a
         duty to examine the same to  determine  whether or not they  conform to
         the requirements of this Indenture;

                  (b) the Trustee  shall not be liable for any error of judgment
made in good  faith by a  responsible  officer or  officers,  unless it shall be
proved that the Trustee was negligent in ascertaining the pertinent facts; and

                  (c) the Trustee shall not be liable with respect to any action
taken  or  omitted  to be  taken  by it in good  faith  in  accordance  with the
direction of the Holders of Securities  pursuant to Section 6.06 relating to the
time,  method and place of conducting any proceeding for any remedy available to
the Trustee, or exercising any trust or power conferred upon the Trustee,  under
this Indenture.

                           No provision of this Indenture shall be construed
as  requiring  the Trustee to expend or risk its own funds or otherwise to incur
any  personal  financial  liability  in the  performance  of  any of its  duties
hereunder,  or in the exercise of any of its rights or powers, if there shall be
reasonable  grounds  for  believing  that  repayment  of such funds or  adequate
indemnity against such risk or liability is not reasonably assured to it.


                                      -47-
<PAGE>
                  SECTION 7.02. RELIANCE ON DOCUMENTS, OPINIONS, ETC. Subject to
the provisions of Section 7.01:

                  (a) the Trustee may rely and shall be  protected  in acting or
refraining from acting upon any resolution,  certificate, statement, instrument,
opinion, report, notice, request, consent, order, bond, debenture,  note, coupon
or other paper or document  believed by it to be genuine and to have been signed
or presented by the proper party or parties;

                  (b) any  request,  direction,  order or demand of the  Company
mentioned herein shall be sufficiently  evidenced by an instrument signed in the
name of the  Company  by the  Chairman  of the  Board of  Directors  or any Vice
Chairman  of the Board of  Directors  or the  President  or any  Executive  Vice
President or any vice  President or the  Treasurer  and by the  Secretary or any
Assistant Secretary or, if the other signatory is other than the Treasurer,  any
Assistant  Treasurer  (unless  other  evidence  in  respect  thereof  be  herein
specifically  prescribed);  and any Board  Resolution  may be  evidenced  to the
Trustee by a copy thereof certified by the Secretary or any Assistant  Secretary
of the Company;

                  (c) the Trustee may  consult  with  counsel and any Opinion of
Counsel shall be full and complete  authorization  and  protection in respect of
any action  taken or suffered by it  hereunder  in good faith and in  accordance
with such Opinion of Counsel;

                  (d) the Trustee  shall be under no  obligation to exercise any
of the rights or powers vested in it by this Indenture at the request,  order or
direction  of any of the  Securityholders,  pursuant to the  provisions  of this
Indenture,  unless  such  Securityholders  shall  have  offered  to the  Trustee
reasonable  security or indemnity against the costs,  expenses,  and liabilities
which might be incurred therein or thereby;

                  (e) the Trustee  shall not be bound to make any  investigation
into the facts or  matters  stated in any  resolution,  certificate,  statement,
instrument,  opinion, report, notice, request, direction,  consent, order, bond,
debenture,  note,  coupon or other paper or document,  but the  Trustee,  in its
discretion,  may make such further inquiry or  investigation  into such facts or
matters as it may see fit,  and, if the  Trustee  shall  determine  to make such
further  inquiry or  investigation,  it shall be  entitled to examine the books,
records and premises of the Company, personally or by agent or attorney;


                                      -48-
<PAGE>
                  (f) the  Trustee  may  execute  any of the  trusts  or  powers
hereunder  or perform  any duties  hereunder  either  directly  or by or through
agents or attorneys and the Trustee shall not be responsible  for any misconduct
or negligence on the part of any agent or attorney appointed by it with due care
hereunder; and

                  (g) the Trustee shall not be liable for any action taken by it
in good faith and believed by it to be  authorized  or within the  discretion or
rights or powers conferred upon it by this Indenture.

                  SECTION  7.03.  NO  RESPONSIBILITY  FOR  RECITALS,   ETC.  The
recitals  contained  herein  and in the  Securities,  other  than the  Trustee's
certificate of authentication,  shall be taken as the statements of the Company,
and the Trustee assumes no  responsibility  for the correctness of the same. The
Trustee  makes no  representations  as to the  validity or  sufficiency  of this
Indenture or of the Securities,  provided that the Trustee shall not be relieved
of its duty to authenticate Securities only as authorized by this Indenture. The
Trustee shall not be  accountable  for the use or  application by the Company of
Securities or the proceeds thereof.

                  SECTION 7.04.  OWNERSHIP OF SECURITIES OR COUPONS. The Trustee
or any agent of the Company or of the Trustee,  in its  individual  or any other
capacity, may become the owner or pledgee of Securities or coupons with the same
rights it would have if it were not  Trustee,  or an agent of the  Company or of
the Trustee.

                  SECTION  7.05.  MONEYS  TO BE HELD IN  TRUST.  Subject  to the
provisions of Section 12.04  hereof,  all moneys  received by the Trustee or any
paying agent shall,  until used or applied as herein provided,  be held in trust
for the purposes for which they were received,  but need not be segregated  from
other funds  except to the extent  required by law.  Neither the Trustee nor any
paying agent shall be under any liability for interest on any moneys received by
it  hereunder  except such as it may agree with the Company to pay  thereon.  So
long as no Event of Default shall have occurred and be continuing,  all interest
allowed  on any such  moneys  shall be paid from  time to time upon the  written
order of the  Company,  signed by its  Chairman of the Board of Directors or any
Vice Chairman of the Board of Directors or its  President or any Executive  Vice
President or any Vice President or its Treasurer or any Assistant Treasurer.

                  SECTION  7.06.  COMPENSATION  AND  EXPENSES  OF  TRUSTEE.  The
Company  covenants  and agrees to pay to the Trustee from time to time,  and the
Trustee shall be entitled to, reasonable

                                      -49-
<PAGE>
compensation,  and, except as otherwise expressly provided, the Company will pay
or  reimburse  the  Trustee  upon  its  request  for  all  reasonable  expenses,
disbursements  and advances  incurred or made by the Trustee in accordance  with
any of the provisions of this Indenture (including the reasonable  compensation,
expenses and  disbursements  of its counsel and of all persons not  regularly in
its employ) except any such expense,  disbursement  or advance as may arise from
its negligence or bad faith. The Company also covenants to indemnify the Trustee
for, and to hold it harmless  against,  any loss,  liability or expense incurred
without negligence or bad faith on the part of the Trustee, arising out of or in
connection with the acceptance or  administration  of this trust,  including the
costs and  expenses of  defending  itself  against any claim of liability in the
premises.  The  obligations  of the Company under this Section to compensate the
Trustee  and  to  pay  or  reimburse  the  Trustee  for   reasonable   expenses,
disbursements and advances shall constitute additional  indebtedness  hereunder.
Such  additional  indebtedness  shall be  secured by a lien prior to that of the
Securities upon all property and funds held or collected by the Trustee as such,
except  funds  held in  trust  for the  benefit  of the  Holders  of  particular
Securities or coupons.

                  SECTION 7.07.  OFFICER'S  CERTIFICATE AS EVIDENCE.  Subject to
the provisions of Section 7.01, whenever in the administration of the provisions
of this Indenture the Trustee shall deem it necessary or desirable that a matter
be proved or  established  prior to taking or  suffering  any action to be taken
hereunder,  such matter  (unless  other  evidence  in respect  thereof be herein
specifically  prescribed)  may, in the absence of negligence or bad faith on the
part of the Trustee,  be deemed to be conclusively  proved and established by an
Officers'  Certificate  delivered to the Trustee,  and such Certificate,  in the
absence of  negligence  or bad faith on the part of the  Trustee,  shall be full
warrant to the Trustee for any action taken, suffered or omitted by it under the
provisions of this Indenture upon the faith thereof.

                  SECTION  7.08.  CONFLICTING  INTEREST OF  TRUSTEE.  (a) If the
Trustee  has or shall  acquire  any  conflicting  interest,  as  defined in this
Section,  it shall,  within  ninety  days  after  ascertaining  that it has such
conflicting  interest,  either eliminate such conflicting  interest or resign in
the manner and with the effect specified in Section 7.10.

                  (b) In the event that the  Trustee  shall fail to comply  with
the provisions of subsection (a) of this Section, the

                                      -50-
<PAGE>
Trustee shall,  within ten days after the expiration of such ninety-day  period,
transmit notice of such failure to all Securityholders of the series affected by
the  conflicting  interest as the names and addresses of such Holders  appear on
the Security Register.

                  (c) For the  purposes of this  Section  the  Trustee  shall be
deemed to have a  conflicting  interest  with respect to a particular  series if
Securities  of such series are in default (as such term is defined  herein,  but
exclusive of any period of grace or requirement of notice) and:

                  (1) the Trustee is trustee under this  Indenture  with respect
         to the  Outstanding  Securities of any other series or is trustee under
         another indenture under which any other securities,  or certificates of
         interest or participation in any other  securities,  of the Company are
         outstanding,   unless  such  other  indenture  is  a  collateral  trust
         indenture under which the only collateral consists of Securities issued
         under this  Indenture,  provided  that there shall be excluded from the
         operation  of  this  paragraph  this  Indenture  with  respect  to  the
         Securities  of any  series  other  than  that  series,  and  any  other
         indenture or indentures under which other  securities,  or certificates
         of interest or  participation  in other  securities  of the Company are
         outstanding  if  (i)  this  Indenture  is,  and,  if  applicable,  this
         Indenture and such other  indenture or indentures are wholly  unsecured
         and ranks equally, and such other indenture or indentures are hereafter
         qualified under the Trust Indenture Act of 1939,  unless the Securities
         and Exchange Commission shall have found and declared by order pursuant
         to subsection  (b) of Section 305 or  subsection  (c) of Section 307 of
         the Trust  Indenture  Act of 1939 that  differences  exist  between the
         provisions of this Indenture with respect to such particular series and
         one or more other series in this  Indenture and the  provisions of such
         other indenture or indentures which are so likely to involve a material
         conflict of interest as to make it necessary in the public  interest or
         for the  protection of investors to disqualify  the Trustee from acting
         as such under this Indenture with respect to such particular series and
         such other series or such other  indenture or  indentures,  or (ii) the
         Company shall have  sustained the burden of proving,  on application to
         the  Securities  and  Exchange  Commission  and after  opportunity  for
         hearing thereon,  that trusteeship under this Indenture with respect to
         such particular series and such other

                                      -51-
<PAGE>
         series or under this  Indenture and such other  indenture or indentures
         is not so likely to involve a material  conflict of interest as to make
         it necessary in the public  interest or for the protection of investors
         to disqualify the Trustee from acting as such under this Indenture with
         respect to such  particular  series and such other series or under this
         Indenture and such other indenture or indentures;

                  (2) the Trustee or any of its directors or executive  officers
         is an  obligor  upon the  Securities  of any series  issued  under this
         Indenture or an underwriter for the Company;

                  (3) the Trustee directly or indirectly controls or is directly
         or  indirectly  controlled  by or is under  direct or  indirect  common
         control with the Company or an underwriter for the Company;

                  (4) the Trustee or any of its directors or executive  officers
         is a director, officer, partner, employee, appointee, or representative
         of the Company,  or of an underwriter  (other than the Trustee  itself)
         for  the  Company  who  is   currently   engaged  in  the  business  of
         underwriting,  except that (A) one  individual  may be a director or an
         executive officer or both of the Trustee and a director or an executive
         officer  or both of the  Company,  but may not be at the  same  time an
         executive  officer of both the Trustee and the  Company;  (B) if and so
         long as the number of  directors  of the Trustee in office is more than
         nine,  one  additional  individual  may be a director  or an  executive
         officer or both of the Trustee and a director of the  Company;  and (C)
         the Trustee may be designated by the Company or by any  underwriter for
         the  Company  to act in the  capacity  of  transfer  agent,  registrar,
         custodian,  paying agent, fiscal agent, escrow agent, or depositary, or
         in any  other  similar  capacity,  or,  subject  to the  provisions  of
         paragraph (1) of this subsection (c), to act as trustee,  whether under
         an indenture or otherwise;

                  (5)  ten  percent  or  more of the  voting  securities  of the
         Trustee is beneficially owned either by the Company or by any director,
         partner or executive officer thereof, or twenty percent or more of such
         voting securities is beneficially  owned,  collectively,  by any two or
         more of such persons;  or ten percent or more of the voting  securities
         of the Trustee is

                                      -52-
<PAGE>
         beneficially  owned either by an underwriter  for the Company or by any
         director,  partner,  or executive  officer thereof,  or is beneficially
         owned, collectively, by any two or more such persons;

                  (6) the  Trustee  is the  beneficial  owner  of,  or  holds as
         collateral  security for an  obligation  which is in default,  (A) five
         percent or more of the voting securities, or ten percent or more of any
         other class of security,  of the Company,  not including the Securities
         issued  under this  Indenture  and  securities  issued  under any other
         indenture  under which the Trustee is also trustee,  or (B) ten percent
         or more of any class of security of an underwriter for the Company;

                  (7) the  Trustee  is the  beneficial  owner  of,  or  holds as
         collateral security for an obligation which is in default, five percent
         or more of the voting securities of any person who, to the knowledge of
         the Trustee,  owns ten percent or more of the voting  securities of, or
         controls  directly or indirectly or is under direct or indirect  common
         control with, the Company;

                  (8) the  Trustee  is the  beneficial  owner  of,  or  holds as
         collateral security for an obligation which is in default,  ten percent
         or more of any class of security of any person who, to the knowledge of
         the Trustee, owns fifty percent or more of the voting securities of the
         Company; or

                  (9) the Trustee  owns, on the date of default on a Security or
         any  anniversary  of  such  default,   in  the  capacity  of  executor,
         administrator, testamentary or inter vivos trustee, guardian, committee
         or  conservator,  or in any other  similar  capacity,  an  aggregate of
         twenty-five  percent or more of the voting securities,  or of any class
         of security,  of any person,  the  beneficial  ownership of a specified
         percentage of which would have constituted a conflicting interest under
         paragraph  (6),  (7),  or (8) of this  subsection  (c).  As to any such
         securities of which the Trustee  acquired  ownership  through  becoming
         executor,  administrator,  or  testamentary  trustee of an estate which
         included  them,  the  provisions  of the preceding  sentence  shall not
         apply, for a period of two years from the date of such acquisition,  to
         the extent that such securities included in such estate do not exceed

                                      -53-
<PAGE>
         twenty-five percent of such voting securities or twenty-five percent of
         any such  class  of  security.  Promptly  after  the  dates of any such
         default and the  anniversary  of such default if such default  shall be
         continuing,  the  Trustee  shall make a check of its  holdings  of such
         securities in any of the  above-mentioned  capacities as of such dates.
         If the  Company  fails  to make  payment  in full  of  principal  of or
         interest on any of the  Securities  when and as the same become due and
         payable,  and such failure  continues for thirty days  thereafter,  the
         Trustee shall make a prompt check of its holdings of such securities in
         any of the above-mentioned  capacities as of the date of the expiration
         of such thirty-day  period,  and after such date,  notwithstanding  the
         foregoing provisions of this paragraph (9), all such securities so held
         by the Trustee,  with sole or joint control over such securities vested
         in it,  shall,  but only so long as such  failure  shall  continue,  be
         considered as though beneficially owned by the Trustee for the purposes
         of paragraphs (6), (7), and (8) of this subsection (c).

                  The  specification  of  percentages  in paragraphs (5) to (9),
inclusive,  of this subsection (c) shall not be construed as indicating that the
ownership  of  such  percentages  of the  securities  of a  person  is or is not
necessary  or  sufficient  to  constitute  direct or  indirect  control  for the
purposes of paragraph (3) or (7) of this subsection (c).

                  For the purposes of paragraphs  (6), (7), (8), and (9) of this
subsection (c) only, (A) the terms  "security"  and  "securities"  shall include
only such securities as are generally known as corporate  securities,  but shall
not  include  any  note or  evidence  of  indebtedness  issued  to  evidence  an
obligation  to  repay  moneys  lent  to a  person  by one or more  banks,  trust
companies or banking firms, or any certificate of interest or participation,  in
any such note or evidence of indebtedness;  (B) an obligation shall be deemed to
be in default when a default in payment of principal  shall have  continued  for
thirty days or more and shall not have been cured; and (C) the Trustee shall not
be  deemed  to be the  owner or  Holder  of (i) any  security  which it holds as
collateral  security (as trustee or otherwise) for an obligation which is not in
default as defined in clause (B) above,  or (ii) any security  which it holds as
collateral security under this Indenture, irrespective of any default hereunder,
or (iii) any security which it holds as agent for  collection,  or as custodian,
escrow agent, or depositary, or in any similar representative capacity.

                                      -54-
<PAGE>
                  Except as provided above,  the word "security" or "securities"
as used in this Indenture  shall mean any note,  stock,  treasury  stock,  bond,
debenture, evidence of indebtedness, certificate of interest or participation in
any profit  sharing  agreement,  collateral-trust  certificate,  preorganization
certificate  or   subscription,   transferable   share,   investment   contract,
voting-trust  certificate,  certificate  of deposit for a  security,  fractional
undivided  interest in oil, gas, or other mineral  rights,  or, in general,  any
interest or instrument  commonly  known as a "security",  or any  certificate of
interest or  participation  in,  temporary or interim  certificate  for, receipt
following guarantee of, or warrant or right to subscribe to or purchase,  any of
the foregoing.

                  (d)      For the purposes of this Section:

                  (1) The term  "underwriter"  when used with  reference  to the
         Company shall mean every person who,  within one year prior to the time
         as of which the  determination  is made, has purchased from the Company
         with  a view  to,  or has  offered  or has  sold  for  the  Company  in
         connection  with,  the  distribution  of any  security  of the  Company
         outstanding  at such time, or has  participated  or has had a direct or
         indirect participation in any such undertaking,  or has participated or
         has had a participation  in the direct or indirect  underwriting if any
         such  undertaking,  but such  terms  shall not  include a person  whose
         interest was limited to a commission  from an underwriter or dealer not
         in  excess  of  the  usual  and  customary   distributors  or  sellers,
         commission.

                  (2)  The  term  "director"   shall  mean  any  director  of  a
         corporation or any individual performing similar functions with respect
         to any organization whether incorporated or unincorporated.

                  (3) The term "person" shall mean an individual, a corporation,
         a partnership,  an  association,  a joint-stock  company,  a trust,  an
         unincorporated  organization,  or a government or political subdivision
         thereof. As used in this paragraph, the term "trust" shall include only
         a  trust  where  the  interest  or  interests  of  the  beneficiary  or
         beneficiaries are evidenced by a security.

                  (4)  The  term  "voting  security"  shall  mean  any  security
         presently  entitling  the  owner  or  Holder  thereof  to  vote  in the
         direction or management of the

                                      -55-
<PAGE>
         affairs of a person,  or any  security  issued under or pursuant to any
         trust,  agreement or arrangement whereby a trustee or trustees or agent
         or  agents  for the  owner or Holder  of such  security  are  presently
         entitled to vote in the  direction  or  management  of the affairs of a
         person.

                  (5) The  term  "Company"  shall  mean  any  obligor  upon  the
         Securities.

                  (6) The term  "executive  officer"  shall mean the  president,
         every vice president,  every trust officer, the cashier, the secretary,
         and the  treasurer of a  corporation,  and any  individual  customarily
         performing  similar functions with respect to any organization  whether
         incorporated or unincorporated.

                  (e) The percentages of voting  securities and other securities
specified in this Section shall be  calculated in accordance  with the following
provisions:

                  (A) A specified  percentage  of the voting  securities  of the
         Trustee,  the Company or any other  person  referred to in this Section
         (each of whom is  referred to as a "person"  in this  paragraph)  means
         such  amount of the  outstanding  voting  securities  of such person as
         entitles  the  Holder  or  Holders   thereof  to  cast  such  specified
         percentage  of the  aggregate  votes  which  the  Holders  of  all  the
         outstanding  voting  securities  of such person are entitled to cast in
         the direction or management of the affairs of such person.

                  (B) A  specified  percentage  of a class  of  securities  of a
         person means such  percentage of the aggregate  amount of securities of
         the class outstanding.

                  (C) The term  "amount,"  when used in  regard  to  securities,
         means the  principal  amount if relating to evidences of  indebtedness,
         the number of shares if relating to capital  shares,  and the number of
         units if relating to any other kind of security.

                  (D) The term "outstanding" means issued and not held by or for
         the account of the issuer. The following securities shall not be deemed
         outstanding within the meaning of this definition:


                                      -56-
<PAGE>
                  (i) securities of an issuer held in a sinking fund relating to
                  securities of the issuer of the same class;

                  (ii)  securities  of an issuer held in a sinking fund relating
                  to  another  class  of  securities  of  the  issuer,   if  the
                  obligation  evidenced by such other class of securities is not
                  in default as to principal or interest or otherwise;

                  (iii) securities pledged by the issuer thereof as security for
                  an  obligation of the issuer not in default as to principal or
                  interest or otherwise; and

                  (iv)  securities  held in  escrow  if  placed in escrow by the
                  issuer thereof;

                  provided,  however,  that any voting  securities  of an issuer
                  shall be  deemed  outstanding  if any  person  other  than the
                  issuer is entitled to exercise the voting rights thereof.

                  (E) A  security  shall be  deemed  to be of the same  class as
         another  security if both securities  confer upon the holder or holders
         thereof  substantially  the  same  rights  and  privileges;   provided,
         however, that in the case of secured evidences of indebtedness,  all of
         which are issued under a single indenture,  differences in the interest
         rates or maturity  dates of various  series thereof shall not be deemed
         sufficient to constitute  such series  different  classes and provided,
         further,  that,  in the case of unsecured  evidences  of  indebtedness,
         differences  in the interest  rates or maturity dates thereof shall not
         be  deemed  sufficient  to  constitute  them  securities  of  different
         classes, whether or not they are issued under a single indenture.

                  SECTION 7.09. ELIGIBILITY OF TRUSTEE. There shall at all times
be a trustee hereunder which shall be a corporation organized and doing business
under the laws of the United  States or of any State or Territory  thereof or of
the District of Columbia,  which (a) is  authorized  under such laws to exercise
corporate trust powers,  and (b) is subject to supervision or  reexamination  by
Federal, State, Territorial or District of Columbia authority and (c) shall have
at all times a combined capital and surplus of not less than one hundred million
dollars.  If such corporation  publishes reports of condition at least annually,
pursuant to law, or to the requirements of the

                                      -57-
<PAGE>
aforesaid  supervising  or  examining  authority,  then for the purposes of this
Section,  the combined capital and surplus of such corporation at any time shall
be deemed to be its combined capital and surplus as set forth in its most recent
report of condition so published. In case at any time the Trustee shall cease to
be eligible in accordance with the provisions of this Section, the Trustee shall
resign immediately in the manner and with the effect specified in Section 7.10.

                  SECTION  7.10.  RESIGNATION  OR  REMOVAL OF  TRUSTEE.  (a) The
Trustee, or any trustee or trustees hereafter  appointed,  may, upon sixty days'
written notice to the Company, at any time resign with respect to one or more or
all series by giving written  notice of  resignation to the Company,  and (i) if
any Unregistered Securities of a series affected are then outstanding, by giving
notice of such resignation to the Holders thereof,  by publication at least once
in an Authorized  Newspaper in London, (ii) if any Unregistered  Securities of a
series affected are then  outstanding,  by mailing notice of such resignation to
the Holders thereof who have filed their names and addresses with the Trustee as
described in Section 5.04 at such  addresses as were so furnished to the Trustee
and  (iii)  by  mailing  notice  of  such  resignation  to the  Holders  of then
outstanding  Registered Securities of each series affected at their addresses as
they shall  appear on the  Security  Register.  Upon  receiving  such  notice of
resignation the Company shall promptly a point a successor  trustee with respect
to the applicable series by written instrument, in duplicate,  executed by order
of the Board of Directors of the Company,  one copy of which instrument shall be
delivered to the resigning Trustee and one copy to the successor trustee.  If no
successor  trustee shall have been so appointed  and have  accepted  appointment
within  thirty  days after the  mailing  of such  notice of  resignation  to the
Securityholders,  the  resigning  Trustee may  petition  any court of  competent
jurisdiction for the appointment of a successor  trustee,  or any Securityholder
who has been a bona fide Holder of a Security or  Securities  of the  applicable
series for at least six months may,  subject to the  provisions of Section 6.08,
on behalf of himself and all others similarly situated,  petition any such court
for the appointment of a successor trustee. Such court may thereupon, after such
notice,  if any,  as it may deem  proper  and  prescribe,  appoint  a  successor
trustee.

                  (b) In case at any time any of the following shall occur:

                  (1) the Trustee shall fail  to  comply,  with  the  provisions
         of subsection (a) of Section 7.08 with respect to

                                      -58-
<PAGE>
         any series of Securities  after written request therefor by the Company
         or by any  Securityholder who has been a bona fide Holder of a Security
         or Securities of such series for at least six months, or

                  (2) the Trustee shall cease to be eligible in accordance  with
         the provisions of Section 7.09 with respect to any series of Securities
         and shall fail to resign after written request  therefor by the Company
         or by any such Securityholder, or

                  (3) the Trustee shall become  incapable of acting with respect
         to any series of  Securities,  or,  shall be  adjudged  a  bankrupt  or
         insolvent,  or a receiver  of the Trustee or of its  property  shall be
         appointed,  or any public  officer  shall take charge or control of the
         Trustee   or  of  its   property   or  affairs   for  the   purpose  of
         rehabilitation, conservation or liquidation,

then,  in any such case,  the Company may remove the Trustee with respect to the
applicable  series of Securities and appoint a successor trustee with respect to
such series by written instrument, in duplicate,  executed by order of the Board
of Directors of the Company,  one copy of which instrument shall be delivered to
the Trustee so removed and one copy to the successor trustee, or, subject to the
provisions of Section  6.08,  any  Securityholder  of such series who has been a
bona fide Holder of a Security or  Securities  of the  applicable  series for at
least six months may, on behalf of himself  and all others  similarly  situated,
petition any court of competent  jurisdiction for the removal of the Trustee and
the appointment of a successor  trustee with respect to such series.  Such court
may thereupon,  after such notice,  if any, as it may deem proper and prescribe,
remove the Trustee and appoint a successor trustee.

                  (c) The Holders of a majority in aggregate principal amount of
the  Securities of any series may at any time remove the Trustee with respect to
Securities  of such series and appoint a successor  trustee  with respect to the
Securities of such series.

                  (d)  Any  resignation  or  removal  of  the  Trustee  and  any
appointment  of a successor  trustee  pursuant to any of the  provisions of this
Section shall become  effective upon  acceptance of appointment by the successor
trustee as provided in section 7.11.


                  SECTION 7.11.  ACCEPTANCE BY SUCCESSOR TRUSTEE.  Any successor
trustee appointed as provided in Section 7.10 shall

                                      -59-
<PAGE>
execute,  acknowledge and deliver to the Company and to its predecessor  trustee
an  instrument   accepting  such  appointment   hereunder,   and  thereupon  the
resignation  or removal of the  predecessor  trustee  with respect to all or any
applicable series shall become effective and such successor trustee, without any
further  act,  deed or  conveyance,  shall  become  vested  with all the rights,
powers,  duties and  obligations  with respect to such series of its predecessor
hereunder,  with like  effect as if  originally  named as trustee  herein;  but,
nevertheless, on the written request of the Company or of the successor trustee,
the  trustee  ceasing to act shall,  upon  payment  of any  amounts  then due it
pursuant to the  provisions of Section  7.06,  execute and deliver an instrument
transferring to such successor  trustee all the rights and powers of the trustee
so ceasing to act. Upon request of any such successor trustee, the Company shall
execute any and all  instruments in writing in order more fully and certainly to
vest in and confirm to such  successor  trustee all such rights and powers.  Any
trustee leasing to act shall,  nevertheless,  retain a lien upon all property or
funds  held or  collected  by such  trustee to secure  any  amounts  then due it
pursuant to the provisions of Section 7.06.

                  In case of the  appointment  hereunder of a successor  trustee
with respect to the Securities of one or more (but not all) series, the Company,
the  predecessor  Trustee  and  each  successor  trustee  with  respect  to  the
Securities  of any  applicable  series  shall  execute and deliver an  indenture
supplemental  hereto  which shall  contain  such  provisions  as shall be deemed
necessary or desirable to confirm that all the rights, powers, trusts and duties
of the  predecessor  Trustee with respect to the  Securities of any series as to
which the predecessor Trustee is not retiring shall continue to be vested in the
predecessor  Trustee,  and shall add to or change any of the  provisions of this
Indenture as shall be necessary to provide for or facilitate the  administration
of the trusts  hereunder  by more than one  trustee,  it being  understood  that
nothing herein or in such supplemental  indenture shall constitute such trustees
co-trustees  of the same trust and that each such trustee  shall be trustee of a
trust or trusts hereunder  separate and apart from any trust or trusts hereunder
administered by any other such trustee.

                  No successor  trustee shall accept  appointment as provided in
this Section unless at the time of such acceptance such successor  trustee shall
be  qualified  under the  provisions  of  Section  7.08 and  eligible  under the
provisions of section 7.09.

                  Upon  acceptance  of  appointment  by a  successor  trustee as
provided in this Section, the Company shall give notice of the

                                      -60-
<PAGE>
succession  of such trustee  hereunder (a) if any  Unregistered  Securities of a
series affected are then Outstanding,  to the Holders thereof, by publication of
such  notice  at  least  once  in an  Authorized  Newspaper  in the  Borough  of
Manhattan, The City of New York and at least once in an Authorized Newspaper, in
London,  (b) if any  Unregistered  Securities  of a  series  affected  are  then
Outstanding,  to the Holders  thereof  who have filed their names and  addresses
with the  Trustee  pursuant  to Section  5.04,  by mailing  such  notice to such
Holders at such  addresses  as were so furnished to the Trustee (and the Trustee
shall make such  information  available to the Company for such purpose) and (c)
to the Holders of Registered Securities of each series affected, by mailing such
notice to such  Holders at their  addresses as they shall appear on the Security
Register.  If the  Company  fails to mail such notice in the  prescribed  manner
within ten days after the acceptance of  appointment  by the successor  trustee,
the  successor  trustee shall cause such notice to be so given at the expense of
the Company.

                  SECTION 7.12.  SUCCESSOR BY MERGER,  ETC. Any corporation into
which  the  Trustee  may  be  merged  or  converted  or  with  which  it  may be
consolidated,  or any  corporation  resulting  from any  merger,  conversion  or
consolidation  to  which  the  Trustee  shall  be a  party,  or any  corporation
succeeding  to the  corporate  trust  business  of  the  Trustee,  shall  be the
successor of the Trustee hereunder, provided such corporation shall be qualified
under the  provisions  of Section  7.08 and  eligible  under the  provisions  of
Section 7.09, without the execution or filing of any paper or any further act on
the  part  of  any  of the  parties  hereto,  anything  herein  to the  contrary
notwithstanding.

                  SECTION  7.13.  LIMITATIONS  ON RIGHTS OF TRUSTEE AS CREDITOR.
(a) Subject to the provisions of subsection (b) of this Section,  if the Trustee
shall  be or  shall  become  a  creditor  directly  or  indirectly,  secured  or
unsecured, of the Company or on any other obligor on the Securities within three
months prior to a default,  as defined in  subsection  (c) of this  Section,  or
subsequent  to such a default,  then,  unless and until  such  default  shall be
cured, the Trustee shall set apart and hold in a special account for the benefit
of the Trustee  individually,  the Holders of the  Securities  of any series for
which it is acting as trustee,  the Holders of any coupons  appertaining to such
Securities,  and the  holders  of other  indenture  securities  (as  defined  in
subsection (c) of this Section):

                  (1) an amount  equal to any and all  reductions  in the amount
         due and owing upon any claim as such  creditor in respect of  principal
         or interest, effected after the

                                      -61-
<PAGE>
         beginning of such three months' period and valid as against the Company
         and its other creditors,  except any such reduction  resulting from the
         receipt or  disposition  of any property  described in paragraph (2) of
         this  subsection or from the exercise of any right of set-off which the
         Trustee could have exercised if a petition in bankruptcy had been filed
         by or against the Company upon the date of such default; and

                  (2) all  property  received  by the  Trustee in respect of any
         claim as such creditor, either as security therefor, or in satisfaction
         or composition thereof, or otherwise, after the beginning of such three
         months'  period,  or an  amount  equal  to the  proceeds  of  any  such
         property,  if disposed of, subject,  however, to the rights, if any, of
         the Company and its other creditors, in such property or such proceeds.

                  Nothing herein contained,  however,  shall affect the right of
the Trustee:

                  (A) to retain for its own account (i) payments made on account
         of any such claim by any person  (other than the Company) who is liable
         thereon,  and (ii) the proceeds of the bona fide sale of any such claim
         by the Trustee to a third person, and (iii) distributions made in cash,
         securities,  or other  property in respect of claims filed  against the
         Company  in  bankruptcy  or   receivership   or  in   proceedings   for
         reorganization  pursuant  to  Title  11 of the  United  States  Code or
         applicable State law;

                  (B) to realize, for its own account, upon any property held by
         it as security for any such claim,  if such  property was so held prior
         to the beginning of such three months' period;

                  (C) to realize, for its own account, but only to the extent of
         the  claim  hereinafter  mentioned,  upon  any  property  held by it as
         security  for any such  claim,  if such  claim  was  created  after the
         beginning of such three  months'  period and such property was received
         as security therefor  simultaneously with the creation thereof,  and if
         the Trustee  shall  sustain the burden of proving that at the time such
         property was so received the Trustee had no reasonable cause to believe
         that a default as defined in subsection (c) of this Section would occur
         within three months; or

                  (D) to receive  payment on any claim  referred to in paragraph
         (B) or (C),  against the release of any  property  held as security for
         such claim as provided in such

                                      -62-
<PAGE>
         paragraph (8) or (C), as the case may be, to the extent of
         the fair value of such property.

                  For the  purposes of  paragraphs  (B),  (C) and (D),  property
substituted  after the beginning of such three months'  period for property held
as security at the time of such  substitution  shall,  to the extent of the fair
value of the property  released,  have the same status as the property released,
and,  to the extent  that any claim  referred  to in any of such  paragraphs  is
created in renewal of or in substitution  for or for the purpose of prepaying or
refunding  any  preexisting  claim of the Trustee as such  creditor,  such claim
shall have the same status as such preexisting claim.

                  If the  Trustee  shall  be  required  to  account,  the  funds
property  held  in such  special  account  and the  Proceeds  thereof  shall  be
apportioned  between the Trustee,  the  Securityholders and the holders of other
indenture  securities in such manner that the Trustee,  the  Securityholders and
the holders of other indenture  securities realize, as a result of payments from
such special  account and  payments of  dividends  on claims  filed  against the
Company in bankruptcy  or  receivership  or in  proceedings  for  reorganization
pursuant to Title 11 of the United  States Code or  "applicable  State law,  the
same  percentage of their  respective  claims,  figured before  crediting to the
claim of the  Trustee  anything on account of the receipt by it from the Company
of the funds and  property in such special  account and before  crediting to the
respective  claims of the Trustee,  the  Securityholders  and the holders of the
other  indenture  securities,  dividends on claims filed  against the Company in
bankruptcy or  receivership  or in proceedings  for  reorganization  pursuant to
Title 11 of the United States Code or applicable  State law, but after crediting
thereon receipts on account of the indebtedness  represented by their respective
claims from all sources  other than from such  dividends  and from the funds and
property  so held in  such  special  account.  As used in this  paragraph,  with
respect to any claim, the term "dividends"  shall include any distribution  with
respect to such claim,  in  bankruptcy or  receivership  or in  proceedings  for
reorganization  pursuant  to Title 11 of the United  States  Code or  applicable
State law,  whether  such  distribution  is made in cash,  securities,  or other
property,  but shall not  include  any such  distribution  with  respect  to the
secured  portion,  if any,  of such claim.  The court in which such  bankruptcy,
receivership,   or  proceeding   for   reorganization   is  pending  shall  have
jurisdiction

(i) to apportion  between the Trustee,  the  Securityholders  and the holders of
other indenture securities, in accordance with the provisions of this paragraph,
the funds and property held in such special account and the proceeds thereof, or
(ii) in lieu of such

                                      -63-
<PAGE>
apportionment,  in whole or in part, to give to the provisions of this paragraph
due consideration in determining the fairness of the distributions to be made to
the Trustee,  the Securityholders and the holders of other indenture  securities
with  respect  to  their  respective  claims,  in which  event  it shall  not be
necessary  to  liquidate  or to appraise  the value of any  securities  or other
property held in such special  account or as security for any such claim,  or to
make a specific  allocation  of such  distributions  as between  the secured and
unsecured  portions of such claims, or otherwise to apply the provisions of this
paragraph as a mathematical formula.

                  Any  Trustee  who has  resigned  or  been  removed  after  the
beginning of such three  months'  period shall be subject to the  provisions  of
this subsection (a) as though such  resignation or removal had not occurred.  If
any Trustee has  resigned or been removed  prior to the  beginning of such three
months' period,  it shall be subject to the provisions of this subsection (a) if
and only if the following conditions exist:

                  (i) the receipt of property or  reduction of claim which would
         have given rise to the  obligation  to  account,  if such  Trustee  had
         continued  as  trustee,  occurred  after the  beginning  of such  three
         months' period; and

                  (ii) such receipt of property or  reduction of claim  occurred
         within three months after such resignation or removal.

                  (b) There shall be excluded  from the  operation of subsection
(a) of this Section a creditor relationship arising from:

                  (1) the ownership or  acquisition  of securities  issued under
         any indenture,  or any security or securities  having a maturity of one
         year or more at the time of acquisition by the Trustee;

                  (2) advances  authorized by a receivership or bankruptcy court
         of competent  jurisdiction,  or by this  Indenture,  for the purpose of
         preserving  any property which shall at any time be subject to the lien
         of this Indenture or of  discharging  tax liens or other prior liens or
         encumbrances  thereon,  if notice of such advance and of  circumstances
         surrounding the making thereof is given to the  Securityholders  at the
         time and in the manner provided in this Indenture;


                                      -64-
<PAGE>
                  (3)  disbursements  made in the ordinary course of business in
         the capacity of trustee under an indenture,  transfer agent, registrar,
         custodian,  paying agent, fiscal agent or depositary,  or other similar
         capacity;

                  (4) an indebtedness  created as a result of services  rendered
         or premises rented; or an indebtedness  created as a result of goods or
         securities  sold in a cash  transaction as defined in subsection (c) of
         this Section;

                  (5)  the  ownership  of  stock  or of  other  securities  of a
         corporation  organized  under the  provisions  of Section  25(a) of the
         Federal  Reserve  Act, as amended,  which is directly or  indirectly  a
         creditor of the Company; or

                  (6) the acquisition,  ownership,  acceptance or negotiation of
         any drafts, bills of exchange,  acceptances,  or obligations which fall
         within  the  classification  of  self-liquidating  paper as  defined in
         subsection (c) of this Section.

                  (c)      As used in this Section:

                  (1) The term "default"  shall mean any failure to make payment
         in full of the principal of or interest  upon any of the  Securities or
         upon the  other  indenture  securities  when and as such  principal  or
         interest becomes due and payable.

                  (2)  The  term  "other   indenture   securities"   shall  mean
         securities  upon which the  Company is an  obligor  (as  defined in the
         Trust Indenture Act of 1939)  outstanding under any other indenture (A)
         under which the Trustee is also trustee,  (B) which contains provisions
         substantially  similar  to the  provisions  of  subsection  (a) of this
         Section,  and (C)  under  which a  default  exists  at the  time of the
         apportionment of the funds and property held in said special account.

                  (3) The term "cash  transaction" shall mean any transaction in
         which full  payment for goods or  securities  sold is made within seven
         days after delivery of the goods or securities in currency or in checks
         or other orders drawn upon banks or bankers and payable upon demand.

                  (4) The term  "self-liquidating  paper"  shall mean any draft,
         bill of  exchange,  acceptance  or  obligation  which is  made,  drawn,
         negotiated or incurred by the Company for the purposes of financing the
         purchase, processing,  manufacture, shipment, storage or sale of goods,
         wares or merchandise and which is secured by documents evidencing title
         to,

                                      -65-
<PAGE>
         possession of, or a lien upon,  the goods,  wares or merchandise or the
         receivables  or proceeds  arising from the sale of the goods,  wares or
         merchandise previously constituting the security, provided the security
         is  received  by the Trustee  simultaneously  with the  creation of the
         creditor  relationship  with  the  Company  arising  from  the  making,
         drawing,  negotiating  or  incurring  of the draft,  bill of  exchange,
         acceptance or obligation.

                  (5) The  term  "Company"  shall  mean  any  obligor  upon  the
         Securities.


                                  ARTICLE EIGHT
                         CONCERNING THE SECURITYHOLDERS

                  SECTION  8.01.  ACTION BY  SECURITYHOLDERS.  Whenever  in this
Indenture  it is provided  that the Holders of a specified  aggregate  principal
amount  of the  outstanding  Securities  of  any  series  may  take  any  action
(including  the  making of any  demand or  request,  the  giving of any  notice,
consent or waiver or the taking of any other action),  the fact that at the time
of taking any such  action the  Holders of such  specified  amount  have  joined
therein may be evidenced (a) by any  instrument or any number of  instruments of
similar  tenor  executed  by  Securityholders  in  person  or by  agent or proxy
appointed in writing,  or (b) by the record of the Holders of securities  voting
in favor  thereof at any  meeting  of  Securityholders  duly  called and held in
accordance  with the provisions of Article Nine, or (c) by a combination of such
instrument   or   instruments   and  any  such  record  of  such  a  meeting  of
Securityholders.

                  In  determining  whether the Holders of a specified  aggregate
principal amount of the Outstanding  Securities have taken any action (including
the making of any demand or request, the giving of any notice, consent or waiver
or the taking of any other action),  the principal  amount of any original Issue
Discount  Security  that may be counted in making  such  determination  and that
shall be deemed to be outstanding for such purposes shall be equal to the amount
of the  principal  thereof  that could be declared to be due and payable upon an
Event of Default pursuant to the terms of such Original Issue Discount  Security
at the time the taking of such action is evidenced to the Trustee.

                  SECTION 8.02. PROOF OF EXECUTION BY  SECURITYHOLDERS.  Subject
to the provisions of Sections 7.01, 7.02 and 9.05, proof of the execution of any
instrument by a Securityholder or its

                                      -66-
<PAGE>
agent or proxy shall be sufficient if made in the following
manner:

                  (a) In the case of Holders  of  Unregistered  Securities,  the
fact and date of the  execution  by any such  person  of any  instrument  may be
proved  by  the  certificate  of any  notary  public  or  other  officer  of any
jurisdiction  authorized to take  acknowledgments  of deeds or administer  oaths
that the person  executing such  instruments  acknowledged  to him the execution
thereof,  or by an affidavit of a witness to such execution  sworn to before any
such notary or other such  officer.  Where such  execution is by or on behalf of
any legal entity other than an individual,  such  certificate or affidavit shall
also constitute  sufficient  proof of the authority of the person  executing the
same. The fact of the holding by any Holder of a Security of any series, and the
identifying number of such Security and the date of his holding the same, may be
proved by the  production of such  Security or by a certificate  executed by any
trust company,  bank,  banker or recognized  securities dealer wherever situated
satisfactory to the Trustee,  if such certificate shall be deemed by the Trustee
to be satisfactory. Each such certificate shall be dated and shall state that on
the date  thereof a Security  of such  series  bearing a  specified  identifying
number was deposited  with or exhibited to such trust company,  bank,  banker or
recognized  securities dealer by the person named in such certificate.  Any such
certificate  may be issued in respect of one or more  Securities  of one or more
series  specified  therein.  The  holding  by  the  person  named  in  any  such
certificate of any Securities of any series specified  therein shall be presumed
to continue for a period of one year from the date of such certificate unless at
the time of any determination of such holding (1) another  certificate bearing a
later date issued in respect of the same  Securities  shall be produced,  or (2)
the Security of such series specified in such  certificate  shall be produced by
some  other  person,  or (3) the  Security  of  such  series  specified  in such
certificates shall have ceased to be outstanding. Subject to Sections 7.01. 7.02
and 9.05,  the fact and date of the  execution  of any such  instrument  and the
amount and numbers of  Securities  of any series held by the person so executing
such  instrument  and the amount and numbers of any Security or  Securities  for
such  series may also be proven in  accordance  with such  reasonable  rules and
regulations  as may be prescribed by the Trustee for such series or in any other
manner which the Trustee for such series may deem sufficient.

                  (b) In the case of  Registered  Securities,  the  ownership of
         such  Securities  shall be  proved  by the  Security  Register  or by a
         certificate of the Security Registrar.

                                      -67-
<PAGE>
                  SECTION 8.03. WHO ARE DEEMED ABSOLUTE OWNERS. The Company, the
Trustee,  any paying agent,  any transfer  agent and any Security  Registrar may
treat the Holder of any  Unregistered  Security  and the Holder of any coupon as
the absolute owner of such Unregistered  Security or coupon (whether or not such
Unregistered  Security or coupon  shall be overdue) for the purpose of receiving
payment thereof or on account thereof and for all other purposes and neither the
Company,  the Trustee,  any paying  agent,  any transfer  agent nor any Security
Registrar  shall be affected by any notice to the  contrary.  The  Company,  the
Trustee,  any paying agent,  any transfer agent and any Security  Registrar may,
subject  to Section  2.04  hereof,  treat the person in whose name a  Registered
Security shall be registered upon the Security Register as the absolute owner of
such  Registered  Security  (whether or not such  Registered  Security  shall be
overdue) for the purpose of receiving  payment thereof or on account thereof and
for all other purposes and neither the Company,  the Trustee,  any paying agent,
any transfer agent nor any Security Registrar shall be affected by any notice to
the contrary.

                  SECTION  8.04.   COMPANY-OWNED   SECURITIES  DISREGARDED.   In
determining  whether the Holders of the required  aggregate  principal amount of
Securities have given any request,  demand,  authorization,  direction,  notice,
consent  or  waiver  under  this  Indenture,  Securities  which are owned by the
Company or by any person directly or indirectly  controlling or controlled by or
under  direct or indirect  control with the Company,  shall be  disregarded  and
deemed not to be outstanding for the purpose of any such  determination,  except
that for the purpose of  determining  whether the Trustee  shall be protected in
relying on any such request, demand,  authorization,  direction, notice, consent
or  waiver  only  Securities  which  the  Trustee  knows  are so owned  shall be
disregarded.  Securities  so owned which have been  pledged in good faith may be
regarded as  Outstanding  for the purposes of this Section if the pledgee  shall
establish to the  satisfaction  of the Trustee the pledgor's  right to vote such
securities  and  that  the  pledgee  is  not a  person  directly  or  indirectly
controlling or controlled by or under direct or indirect common control with the
Company.  In the case of a dispute as to such right, any decision by the Trustee
taken upon the advice of counsel shall be full protection to the Trustee.

                  SECTION 8.05. REVOCATION OF CONSENTS;  FUTURE  SECURITYHOLDERS
BOUND.  At any time  prior to the  taking of any  action by the  Holders  of the
aggregate  principal  amount of the  Outstanding  Securities  specified  in this
Indenture in connection

                                      -68-
<PAGE>
with such action,  any Holder of a Security the  identifying  number of which is
shown by the evidence to be included in the Securities the Holders of which have
consented to such action may, by filing  written  notice with the Trustee at its
office and upon proof of holding as provided in Section 8.02, revoke such action
so far as concerns such Security.  Except as aforesaid, any such action taken by
the Holder of any Security  shall be conclusive and binding upon such Holder and
upon all future  Holders and owners of such Security and of any Security  issued
in exchange or substitution therefor Irrespective of whether or not any notation
in regard thereto is made upon such Security. Any action taken by the Holders of
the aggregate principal amount of the Securities  specified in this Indenture in
connection with such action shall be conclusively  binding upon the Company, the
Trustee and the  Holders of all the  Securities  of each  series  intended to be
affected thereby.

                                  ARTICLE NINE
                            SECURITYHOLDERS' MEETINGS

                  SECTION   9.01.   PURPOSES   OF   MEETINGS.   A   meeting   of
Securityholders  of any  series  may be called at any time and from time to time
pursuant to the provisions of this Article for any of the following purposes:

                  (1) to give any notice to the Company or to the Trustee, or to
         give any directions to the Trustee,  or to waive any default  hereunder
         and its  consequences,  or to take any other  action  authorized  to be
         taken by  Securityholders  pursuant to any of the provisions of Article
         Six;

                  (2) to remove the  Trustee  and  appoint a  successor  trustee
         pursuant to the provisions of Article Seven;

                  (3) to consent to the  execution of an indenture or indentures
         supplemental hereto pursuant to the provisions of Section 10.02; or

                  (4) to take any other action  authorized  to be taken by or on
         behalf of the Holders of any specified  aggregate  principal  amount of
         the  Securities  of such  series,  as the case may be,  under any other
         provision of this Indenture or under applicable law.

                  SECTION 9.02. CALL OF MEETINGS BY TRUSTEE.  The Trustee may at
any time call a meeting  of  Holders  of  Securities  of any  series to take any
action specified in Section 9.01, to be held

                                      -69-
<PAGE>
at such time and at such  place in the  Borough  of  Manhattan,  The City of New
York, or in London,  as the Trustee shall determine.  Notice of every meeting of
the Holders of Securities of any or all series, setting forth the time and place
of such  meeting  and in general  terms the action  proposed to be taken at such
meeting,  shall be given (i) if any  Unregistered  Securities of such series are
then  outstanding,  to all Holders thereof,  by publication at least twice in an
Authorized  Newspaper in the Borough of  Manhattan,  The City of New York and at
least twice in an Authorized Newspaper in London prior to the date fixed for the
meeting,  the first  publication,  in each case,  to be not less than twenty nor
more than one  hundred  eighty  days prior to the date fixed for the meeting and
the last  publication  to be not more than five days prior to the date fixed for
the  meeting,  (ii) if any  Unregistered  Securities  of such  series  are  then
Outstanding,  to all Holders  thereof  who have filed their names and  addresses
with the Trustee as  described in Section  5.04,  by mailing such notice to such
Holders at such addresses, not less than twenty nor more than one hundred eighty
days prior to the date fixed for the  meeting  and (iii) to all  Holders of then
Outstanding Registered Securities of such series, by mailing such notice to such
Holders at their  addresses as they shall appear on the Security  Register,  not
less than twenty nor more than one  hundred  eighty days prior to the date fixed
for the meeting.  Failure of any Holder or Holders to receive such notice or any
defect  therein shall in no case affect the validity of any action taken at such
meeting.  Any  meeting  of Holders of  Securities  of any series  shall be valid
without notice if the Holders of all Securities of such series Outstanding,  the
Company  and the  Trustee are present in person or by proxy or shall have waived
notice thereof before or after the meeting.

                  SECTION 9.03. CALL OF MEETINGS BY COMPANY OR  SECURITYHOLDERS.
In case at any time the Company,  pursuant to a Board Resolution, or the Holders
of at least ten percent in aggregate  principal  amount of the Securities of any
series, as the case may be, then  Outstanding,  shall have requested the Trustee
to call a meeting of  Securityholders  of  Securities of such series to take any
action  authorized  in  Section  9.01,  by  written  request  setting  forth  in
reasonable  detail  the  action  proposed  to be taken at the  meeting,  and the
Trustee  shall not have mailed or  published  as provided in Section  9.02,  the
notice of such meeting  within thirty days after  receipt of such request,  then
the Company or the  Holders of  Securities  of such  series in the amount  above
specified  may  determine the time and the place in said Borough of Manhattan or
London for such meeting and may call such meeting to take any action  authorized
in Section 9.01,

                                      -70-
<PAGE>
by mailing or publishing notice thereof as provided in Section
9.02.

                  SECTION 9.04. QUALIFICATION FOR VOTING. To be entitled to vote
at any  meeting  of  Securityholders  a person  shall be a Holder of one or more
Securities  of the  series  with  respect  to which a meeting is being held or a
person appointed by an instrument in writing as proxy by such a Holder. The only
persons  who shall be  entitled  to be present or to speak at any meeting of the
Securityholders  shall be the persons entitled to vote at such meeting and their
counsel  and  any  representatives  of the  Trustee  and  its  counsel  and  any
representatives of the Company and its counsel.

                  SECTION   9.05.   REGULATIONS.   Notwithstanding   any   other
provisions of this Indenture,  the Trustee may make such reasonable  regulations
as it may deem advisable for any meeting of Securityholders,  in regard to proof
of the holding of Securities and of the appointment of proxies, and in regard to
the  appointment  and  duties  of  inspectors  of  votes,   the  submission  and
examination  of proxies,  certificates  and other evidence of the right to vote,
and such other matters  concerning  the conduct of the meeting as it shall think
fit.

                  The Trustee  shall,  by an  instrument  in writing,  appoint a
temporary chairman of the meeting,  unless the meeting shall have been called by
the Company or by Securityholders as provided in Section 9.03, in which case the
Company or the Securityholders calling the meeting, as the case may be, shall in
like manner appoint a temporary  chairman.  A permanent chairman and a permanent
secretary  of the meeting  shall be elected by vote of the Holders of a majority
in principal amount of the Securities represented at the meeting and entitled to
vote.

                  Subject to the  provisions  of Sections  8.01 and 8.04, at any
meeting of Securityholders of any series,  each Securityholder or proxy shall be
entitled to one vote for each $1,000  principal amount at maturity of Securities
of such series held or represented by him; provided, however, that no vote shall
be cast or counted at any meeting in respect of any Security  challenged  as not
Outstanding and ruled by the chairman of the meeting not to be Outstanding.  The
chairman of the meeting  shall have no right to vote except as a  Securityholder
or proxy. Any meeting of Securityholders  duly called pursuant to the provisions
of Section 9.02 or 9.03 may be adjourned  from time to time, and the meeting may
be held as so adjourned without further notice.

                                      -71-
<PAGE>
                  SECTION 9.06. VOTING.  The vote upon any resolution  submitted
to any meeting of  Securityholders  shall be by written ballot on which shall be
subscribed the signatures of the  Securityholders  or proxies and on which shall
be inscribed the  identifying  number or numbers or to which shall be attached a
list of identifying  numbers of the Securities  held or represented by them. The
permanent  chairman of the meeting  shall  appoint two  inspectors  of votes who
shall  count all votes cast at the  meeting or against  any  resolution  and who
shall make and file with the secretary of the meeting their verified  reports in
duplicate  of all  votes  cast at the  meeting.  A record  in  duplicate  of the
proceedings  of  each  meeting  of  Securityholders  shall  be  prepared  by the
secretary of the meeting and there shall be attached to said record the original
reports  of the  inspectors  of votes on any vote by ballot  taken  thereat  and
affidavits by one or more persons having  knowledge of the facts setting forth a
copy of the notice of the  meeting  and  showing  that said notice was mailed as
provided  in Section  9.02.  The  record  shall be signed  and  verified  by the
permanent  chairman and secretary of the meeting and one of the duplicates shall
be  delivered to the Company and the other to the Trustee to be preserved by the
Trustee, the latter to have attached thereto the ballots voted at the meeting.

                  Any record so signed and verified shall be conclusive evidence
of the matters therein stated.


                                   ARTICLE TEN
                             SUPPLEMENTAL INDENTURES

                  SECTION  10.01.  SUPPLEMENTAL  INDENTURES  WITHOUT  CONSENT OF
SECURITYHOLDERS.  The Company,  when  authorized  by Board  Resolution,  and the
Trustee  may from  time to time  and at any  time  enter  into an  indenture  or
indentures  supplemental  hereto (which shall  conform to the  provisions of the
Trust  Indenture Act of 1939 as in force at the date of the  execution  thereof)
for one or more of the following purposes:

                  (a) to evidence the  succession of another  corporation to the
Company,  or  successive  successions,  and  the  assumption  by  any  successor
corporation of the covenants, agreements and obligations of the Company pursuant
to Article Eleven hereof;

                  (b) to add to the  covenants of the Company for the Holders of
all or any series of Securities, or the coupons appertaining to such Securities,
to add any  additional  Events of Default  with  respect to all or any series of
Securities, or the

                                      -72-
<PAGE>
coupons  appertaining  to such  Securities,  or to surrender  any right or power
conferred upon the Company;

                  (c) to add or change any of the  provisions of this  Indenture
to such extent as shall be  necessary  to permit or  facilitate  the issuance of
global Securities or Securities of any series in bearer form, registrable or not
registrable  as to  principal,  and with or  without  interest  coupons,  and to
provide for exchangeability of such Securities with Registered Securities issued
hereunder and to make all  appropriate  changes for such purpose,  and to add or
change  any of the  provisions  of this  Indenture  to such  extent  as shall be
necessary to permit or facilitate the issuance of  uncertificated  Securities of
any series;

                  (d) to cure any  ambiguity  or to  correct or  supplement  any
provision  contained herein or in any supplemental  indenture or in the terms of
any series of Securities  which may be defective or inconsistent  with any other
provision  contained herein or in any supplemental  indenture or in the terms of
any series of Securities;  to convey,  transfer,  assign, mortgage or pledge any
property to or with the Trustee;  or to make such other  provisions in regard to
matters or questions  arising  under this  Indenture  or under any  supplemental
indenture  or in the terms of any series of  Securities  as shall not  adversely
affect the  interests of the Holders of any series of  Securities or any coupons
appertaining to such securities in any material respect;

                  (e) to evidence and provide for the acceptance and appointment
hereunder by a successor  trustee with respect to the  Securities of one or more
series  and to add or  change  any  provisions  of this  Indenture  as  shall be
necessary  to  provide  for or  facilitate  the  administration  of  the  trusts
hereunder by more than one trustee, pursuant to Section 7.11;

                  (f) to establish the form or terms of Securities of any series
as permitted by Sections 2.03 and 2.01; and

                  (g) to provide for the terms and conditions of conversion into
Common Stock of the Securities of any series which are  convertible  into Common
Stock, if different from those set forth in Article 15.

                  The Trustee is hereby  authorized  to join with the Company in
         the execution of any such supplemental  indenture,  to make any further
         appropriate  agreements and stipulations which may be therein contained
         and to accept the conveyance,  transfer, assignment, mortgage or pledge
         of any property  thereunder,  but the Trustee shall not be obligated to
         enter

                                      -73-
<PAGE>
         into  any such  supplemental  indenture  which  adversely  affects  the
         Trustee's  own rights,  duties or  immunities  under this  Indenture or
         otherwise.

                  Any  supplemental  indenture  authorized by the  provisions of
this Section may be executed by the Company and the Trustee  without the consent
of the Holders of any of the Securities at the time outstanding, notwithstanding
any of the provisions of Section 10.02.

                  SECTION  10.02.   SUPPLEMENTAL   INDENTURES  WITH  CONSENT  OF
SECURITYHOLDERS. With the consent (evidenced as provided in Section 8.01) of the
Holders  of not less  than a  majority  in  aggregate  principal  amount  of the
Outstanding  Securities of each series affected by such supplemental  indenture,
the Company,  when  authorized by a Board  Resolution,  and the Trustee may from
time to time and at any time enter into an indenture or indentures  supplemental
hereto for the purpose of adding any  provisions to or changing in any manner or
eliminating  any of the  provisions  of this  Indenture  or of any  supplemental
indenture or modifying in any manner the rights of the Holders of the Securities
of each such series or any coupons  appertaining to such  Securities;  provided,
however,  that,  without the consent of the Holder of each Outstanding  Security
affected thereby, no such supplemental indenture shall:

                  (a) extend the stated  maturity of any  Securities,  or reduce
the principal  amount  thereof or premium,  if any, or reduce the rate or extend
the time of payment of any interest or Additional  Amounts thereon or reduce the
amount due and payable upon  acceleration of the maturity  thereof or the amount
provable  in  bankruptcy,  or make the  principal  of, or  interest,  premium or
Additional  Amounts on any Security  payable in any coin or currency  other than
that provided in such Security,

                  (b) impair the right to institute suit for the  enforcement of
any such  payment on or after the stated  maturity  thereof  (or, in the case of
Redemption, on or after the Redemption date therefor),

                  (c) reduce the  aforesaid  percentage  in principal  amount of
Securities of any series,  the consent of whose Holders is required for any such
supplemental  indenture, or the consent of whose Holders is required pursuant to
Section 6.01 to waive defaults, or

                  (d) modify any of the  provisions  of this  Section or Section
6.09, except to increase any such percentage or to

                                      -74-
<PAGE>
provide that certain other  provisions of this  Indenture  cannot be modified or
waived without the consent of the Holder of each Outstanding  Security  affected
thereby, provided,  however, that this clause shall not be deemed to require the
consent of any Holder with respect to changes in the references to "the Trustee"
and  concomitant  changes in this  Section or the deletion of this  proviso,  in
accordance with the requirements of Sections 7.11 and 10.01(e).

A  supplemental  indenture  which  changes or  eliminates  any covenant or other
provision of this  Indenture  which has expressly  been included  solely for the
benefit of one or more  particular  series of securities,  or which modifies the
rights of the Holders of Securities of such series with respect to such covenant
or other  provision,  shall be  deemed  not to  affect  the  rights  under  this
Indenture of the Holders of Securities of any other series.

                  An amendment  under this Section 10.02 may not make any change
that  adversely  affects the rights under  Article  Fourteen of any holder of an
issue of Senior Indebtedness  unless the holders of that issue,  pursuant to its
terms, consent to the change.

                  Upon the request of the  Company,  accompanied  by a copy of a
Board Resolution  authorizing the execution of any such supplemental  indenture,
and  upon  the  filing   with  the   Trustee  of  evidence  of  the  consent  of
Securityholders  as  aforesaid,  the Trustee  shall join with the Company in the
execution of such  supplemental  indenture  unless such  supplemental  indenture
affects the Trustee's own rights,  duties or immunities  under this Indenture or
otherwise,  in which case the  Trustee may in its  discretion,  but shall not be
obligated to, enter into such supplemental indenture.

                  It  shall   not  be   necessary   for  the   consent   of  the
Securityholders  under  this  Section  to  approve  the  particular  form of any
proposed  supplemental  indenture,  but it shall be  sufficient  if such consent
shall approve the substance thereof.

                  Promptly after the execution and delivery by the Company,  and
the Trustee of any  supplemental  indenture  pursuant to the  provisions of this
Section, the Trustee shall give notice of such supplemental indenture (i) to the
Holders  of then  Outstanding  Registered  Securities  of each  series  affected
thereby,  by mailing a notice  thereof by  first-class  mail to such  Holders at
their  addresses  as they shall  appear on the  Security  Register,  (ii) if any
Unregistered  Securities of a series affected thereby are then  Outstanding,  to
the Holders thereof who have filed their names and addresses with the Trustee as

                                      -75-
<PAGE>
described in Section 5.04, by mailing a notice  thereof by  first-class  mail to
such Holders at such  addresses as were so furnished to the Trustee and (iii) if
any Unregistered  Securities of a series affected thereby are then  Outstanding,
to all Holders  thereof,  by publication of a notice thereof at least once in an
Authorized  Newspaper  in London and in each case such notice shall set forth in
general terms the substance of such supplemental  indenture.  Any failure of the
Company to mail or  publish  such  notice,  or any  defect  therein,  shall not,
however  in any way  impair  or affect  the  validity  of any such  supplemental
indenture.

                  SECTION 10.03.  COMPLIANCE WITH TRUST INDENTURE ACT; EFFECT OF
SUPPLEMENTAL  INDENTURES.  Any supplemental  indenture  executed pursuant to the
provisions  of this  Article Ten shall  comply with the Trust  Indenture  Act of
1939,  as then in  effect.  Upon the  execution  of any  supplemental  indenture
pursuant to the provisions of this Article Ten, this  Indenture  shall be and be
deemed to be modified and amended in  accordance  therewith  and the  respective
rights,  limitations of rights,  obligations,  duties and immunities  under this
Indenture  of the  Trustee,  the  Company and the  Holders of  Securities  shall
thereafter  be  determined,  exercised  and  enforced  hereunder  subject in all
respects to such modifications and amendments,  and all the terms and conditions
of any such  supplemental  indenture  shall be and be  deemed  to be part of the
terms and conditions of this Indenture for any and all purposes.

                  The Trustee,  subject to the  provisions  of Sections 7.01 and
7.02,  may receive an opinion of Counsel as  conclusive  evidence  that any such
supplemental indenture complies with the provisions of this Article Ten.

                  SECTION  10.04.  NOTATION  ON  SECURITIES.  Securities  of any
series  authenticated  and  delivered  after the  execution of any  supplemental
indenture  pursuant to the  provision of this Article Ten may bear a notation in
form approved by the Trustee as to any matter provided for in such  supplemental
indenture.  New  Securities  of any series so  modified  as to  conform,  in the
opinion  of the  Trustee  and the  Board of  Directors  of the  Company,  to any
modification of this Indenture contained in any such supplemental  indenture may
be prepared by the Company,  authenticated by the Trustee and delivered, without
charge to the  Securityholders,  in exchange for the  Securities  of such series
then outstanding.

                                      -76-
<PAGE>
                                 ARTICLE ELEVEN
              CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

                  SECTION 11.01. COMPANY MAY CONSOLIDATE,  ETC., ONLY ON CERTAIN
TERMS.  So long as any Securities  shall be  Outstanding,  the Company shall not
consolidate with or merge into any other Person or convey, transfer or lease its
properties and assets substantially as an entirety to any Person unless:

                  (a) the corporation formed by such consolidation or into which
the Company is merged or the Person which acquires by conveyance or transfer, or
which  leases,  the  properties  and assets of the Company  substantially  as an
entirety  shall be a corporation  organized  and existing  under the laws of the
United  States of America,  any State  thereof or the  District of Columbia  and
shall  expressly  assume,  by an  indenture  supplemental  hereto,  executed and
delivered  to the Trustee,  in form  satisfactory  to the  Trustee,  the due and
punctual payment of the principal of (and premium,  if any),  interest,  if any,
and Additional  Amounts,  if any, on all the  Securities and the  performance of
every  covenant of this  Indenture on the part of the Company to be performed or
observed;

                  (b)  immediately  after giving effect to such  transaction and
treating any indebtedness which becomes an obligation of the Company as a result
of such  transaction  as having been incurred by the Company at the time of such
transaction,  no Event of Default,  and no event which, after notice or lapse of
time or both,  would  become an Event of  Default,  shall have  happened  and be
continuing;

                  (c) if,  as a result  of any such  consolidation  or merger or
such  conveyance,  transfer or lease,  properties or assets of the Company would
become  subject  to  a  mortgage,  pledge,  lien,  security  interest  or  other
encumbrance  of any nature which would not be permitted by this  Indenture,  the
Company or such successor  corporation or such person,  firm or corporation,  as
the case may be,  shall take such  steps as shall be  necessary  effectively  to
secure the Securities  (together  with, if the Company so determines,  any other
indebtedness  for money  borrowed of the  Company  then  existing or  thereafter
created which is not  subordinate  to the  Securities)  equally and ratably with
(or, at the option of the Company,  prior to) all indebtedness  secured thereby;
and

                  (d) the Company  has  delivered  to the  Trustee an  Officers'
Certificate  and an opinion of Counsel,  each stating  that such  consolidation,
merger, conveyance, transfer or lease

                                      -77-
<PAGE>
and,  if  a  supplemental   indenture  is  required  in  connection   with  such
transaction,  such supplemental  indenture comply with this Article and that all
conditions  precedent herein provided for relating to such transaction have been
complied with.

                  SECTION 11.02. SUCCESSOR CORPORATION  SUBSTITUTED.  So long as
any Securities shall be outstanding,  upon any  consolidation or any conveyance,
transfer or lease of the properties and assets of the Company  substantially  as
an entirety in accordance with Section 11.01, the successor  corporation  formed
by such  consolidation  or into  which the  Company  is merged or to which  such
conveyance,  transfer or lease is made shall succeed to, and be substituted for,
and may exercise every right and power of, the Company under this Indenture with
the same  effect if such  successor  corporation  had been named as the  Company
herein,  and  thereafter,  except  in  the  case  of a  lease,  the  predecessor
corporation  shall be  relieved  of all  obligations  and  covenants  under this
Indenture and the Securities and any coupons.


                                 ARTICLE TWELVE
                    SATISFACTION AND DISCHARGE OF INDENTURE;
                                UNCLAIMED MONEYS

                  SECTION 12.01.  DISCHARGE OF INDENTURE.  This Indenture  shall
upon Company  Order cease to be of further  effect  (except as to any  surviving
rights of  registration of transfer or exchange of Securities  herein  expressly
provided  for),  and the Trustee,  at the expense of the Company,  shall execute
proper instruments  acknowledging  satisfaction and discharge of this Indenture,
when

                  (a)      either:

                  (i) all  Securities  theretofore  authenticated  and delivered
         (other than (A) Securities  which have been  destroyed,  lost or stolen
         and which have been  replaced or paid as  provided in Section  2.07 and
         (B) Securities for whose payment money has  theretofore  been deposited
         in trust or segregated  and held in trust by the Company and thereafter
         repaid to the Company or  discharged  from such  trust,  as provided in
         Section 12.04) have been delivered to the Trustee for cancellation; or

                  (ii) all such  Securities  not  theretofore  delivered  to the
         Trustee for cancellation:

                           (A)      have become due and payable, or

                                      -78-
<PAGE>
                           (B)      will become due and payable at their stated
                  maturity within one year, or

                           (C) are to be called for  Redemption  within one year
                  under arrangements  satisfactory to the Trustee for the giving
                  of notice of Redemption by the Trustee in the name, and at the
                  expense, of the Company,

                  and the  Company,  in the case of (A),  (B) or (C) above,  has
                  deposited or caused to be deposited  with the Trustee as trust
                  funds in trust for the purpose an amount sufficient to pay and
                  discharge  the  entire  indebtedness  on such  Securities  not
                  theretofore  delivered  to the Trustee for  cancellation,  for
                  principal  (and  premium,  if  any),  interest,  if  any,  and
                  Additional  Amounts  (if any) to the date of such  deposit (in
                  the case of  Securities  which have become due and payable) or
                  to the stated maturity or date of Redemption,  as the case may
                  be;

                  (b) the  Company  has paid or caused to be paid all other sums
payable hereunder by the Company; and

                  (c) the Company  has  delivered  to the  Trustee an  Officers'
Certificate  and an  opinion  of  Counsel,  each  stating  that  all  conditions
precedent herein provided for relating to the satisfaction and discharge of this
Indenture have been complied with.

                  Notwithstanding   the   satisfaction  and  discharge  of  this
Indenture, the obligations of the Company to the Trustee under Section 7.06 and,
if money shall have been deposited  with the Trustee  pursuant to subclause (ii)
of  clause  (a) of this  Section  or if money or  obligations  shall  have  been
deposited  with or  received  by the  Trustee  pursuant  to Section  13.02,  the
obligations of the Trustee under Section 6.03 and Section 12.04 shall survive.

                  SECTION  12.02.  DEPOSITED  MONEYS  TO BE  HELD  IN  TRUST  BY
TRUSTEE.  Subject  to  Section  12.04,  all moneys  deposited  with the  Trustee
pursuant  to this  Indenture  shall be held in trust  and  applied  by it to the
payment,  either  directly or through any paying  agent  (including  the Company
acting as its own paying agent), to the Holders of the particular securities and
of any coupons  appertaining to such Securities for the payment or Redemption of
which such moneys have been deposited  with the Trustee,  of all sums due and to
become due thereon for principal

                                      -79-
<PAGE>
(and premium, if any), interest, if any, and Additional Amounts,
if any.

                  SECTION   12.03.   PAYING  AGENT  TO  REPAY  MONEYS  HELD.  In
connection with the  satisfaction  and discharge of this  Indenture,  all moneys
then held by any paying agent under the provisions of this Indenture shall, upon
demand of the  Company,  be repaid to it or, paid to the  Trustee and  thereupon
such paying agent shall be released from all further  liability  with respect to
such moneys.

                  SECTION  12.04.   RETURN  OF  UNCLAIMED  MONEYS.   Any  moneys
deposited with or paid to the Trustee or any paying agent for the payment of the
principal of (and premium, if any), interest, if any, and Additional Amounts, if
any, on any Security  and not applied but  remaining  unclaimed  for three years
after the date upon which such principal  (and premium,  if any),  interest,  if
any, and Additional Amounts, if any, shall have become due and payable, shall be
repaid to the  Company by the Trustee or such  paying  agent on demand,  and the
Holder of such  Security  or any  coupon  appertaining  to such  Security  shall
thereafter  look only to the Company  for any  payment  which such Holder may be
entitled to collect and all  liability  of the Trustee or any paying  agent with
respect to such  moneys  shall  thereupon  cease;  provided,  however,  that the
Trustee or such paying agent,  before being  required to make any such repayment
with  respect  to  moneys  deposited  with  it for any  payment  in  respect  of
Unregistered  Securities of any series,  may at the expense of the Company cause
to be published  once, in an  Authorized  Newspaper in the Borough of Manhattan,
The City of New York and once in an Authorized Newspaper in London,  notice that
such moneys remain and that, after a date specified therein,  which shall not be
less than thirty days from the date of such  publication,  any unclaimed balance
of such money then remaining will be repaid to the Company.

                                ARTICLE THIRTEEN
                       DEFEASANCE AND COVENANT DEFEASANCE

                  SECTION 13.01.  APPLICABILITY OF ARTICLE;  COMPANY'S OPTION TO
EFFECT  DEFEASANCE  OR COVENANT  DEFEASANCE.  Unless  pursuant  to Section  2.01
provision is made for the inapplicability of either or both of (a) defeasance of
the Securities of a series under Section 13.02 or (b) covenant defeasance of the
Securities of a series under Section 13.03,  then the provisions of such Section
or Sections,  as the case may be,  together  with the other  provisions  of this
Article Thirteen,  shall be applicable to the Securities of such series, and the
Company may at its option by Board Resolution, at any time, with

                                      -80-
<PAGE>
respect to the  Securities  of such series,  elect to have either  Section 13.02
(unless  inapplicable) or Section 13.03 (unless  inapplicable) be applied to the
Outstanding  securities  of such  series  upon  compliance  with the  applicable
conditions set forth below in this Article Thirteen.

                  SECTION 13.02.  DEFEASANCE  AND DISCHARGE.  Upon the Company's
exercise  of the option  provided in Section  13.01 to defease  the  Outstanding
Securities of a particular  series,  the Company  shall be  discharged  from its
obligations  with respect to the  Outstanding  Securities  of such series on the
date  the  applicable  conditions  set  forth in  Section  13.04  are  satisfied
(hereinafter,  "DEFEASANCE").  Defeasance  shall mean that the Company  shall be
deemed to have paid and  discharged the entire  indebtedness  represented by the
Outstanding  Securities  of such  series  and to have  satisfied  all its  other
obligations  under such Securities and this Indenture insofar as such Securities
are  concerned  (and the Trustee,  at the expense of the Company,  shall execute
proper  instruments  acknowledging  the  same);  provided,   however,  that  the
following  rights,  obligations,  powers,  trusts,  duties and immunities  shall
survive until otherwise  terminated or discharged  hereunder:  (a) the rights of
Holders of  Outstanding  Securities  of such series to receive,  solely from the
trust fund provided for in Section  13.04,  payments in respect of the principal
of (and premium, if any),  interest,  if any, and Additional Amounts, if any, on
such Securities when such payments are due, (b) the Company's  obligations  with
respect to such Securities  under Sections 2.05, 2.06, 2.07, 4.02 and 12.04, (c)
the rights,  powers,  trusts, duties and immunities of the Trustee hereunder and
(d) this Article Thirteen. Subject to compliance with this Article Thirteen, the
Company may exercise its option with  respect to  defeasance  under this Section
13.02  notwithstanding the prior exercise of its option with respect to covenant
defeasance under Section 13.03 in regard to the Securities of such series.

                  SECTION  13.03.   COVENANT  DEFEASANCE.   Upon  the  Company's
exercise of the option provided in Section 13.01 to obtain a covenant defeasance
with respect to the outstanding  Securities of a particular  series, the Company
shall  be  released  from its  obligations  under  this  Indenture  (except  its
obligations  under Sections 2.05,  2.06,  2.07, 4.01, 4.02, 6.02, 7.05 and 7.10)
with respect to the Outstanding  Securities of such series on and after the date
the applicable conditions set forth in Section 13.04 are satisfied (hereinafter,
"COVENANT DEFEASANCE"). Covenant defeasance shall mean that, with respect to the
Outstanding  Securities of such series,  the Company may omit to comply with and
shall have no liability in respect of any term, condition or

                                      -81-
<PAGE>
limitation set forth in this Indenture  (except its  obligations  under Sections
2.05,  2.06,  2.07,  4.01,  4.02,  6.02,  7.05 and 7.10),  whether  directly  or
indirectly  by reason of any reference  elsewhere  herein in any such Section or
Article  or by reason of any  reference  in any such  Section  or Article to any
other  provision  herein or in any other  document,  and such omission to comply
shall not  constitute an Event of Default under Section  6.01(c) with respect to
Outstanding  Securities of such series,  and the remainder of this Indenture and
of the Securities of such series shall be unaffected thereby.

                  SECTION   13.04.   CONDITIONS   TO   DEFEASANCE   OR  COVENANT
DEFEASANCE.  The following shall be conditions to defeasance under Section 13.02
and covenant  defeasance  under  Section  13.03 with respect to the  Outstanding
Securities of a particular series:

                  (a) The Company shall  irrevocably have deposited or caused to
be deposited with the Trustee (or another trustee satisfying the requirements of
Section  7.09 who shall  agree to comply  with the  provisions  of this  Article
Thirteen applicable to it) as trust funds in trust for the purpose of making the
following payments,  specifically  pledged as security for, and dedicated solely
to, the benefit of the Holders of such  Securities,  (i) money in an amount,  or
(ii)  Governmental  Obligations  which through the schedule payment of principal
and interest in respect thereof in accordance with their terms will provide, not
later  than  the  due  date of any  payment,  money  in an  amount,  or  (iii) a
combination thereof,  sufficient, in the opinion of a nationally recognized firm
of independent public accountants  expressed in a written  certification thereof
delivered to the Trustee,  to pay and  discharge,  and which shall be applied by
the  Trustee  (or  other  qualifying  trustee)  to pay  and  discharge,  (A) the
principal of (and premium,  if any, on), each  installment  of principal of (and
premium,  if any),  interest (if any) and all Additional Amounts due (if any) on
the  Outstanding  Securities  of such  series  on the  stated  maturity  of such
principal or installment of principal, interest or Additional Amount and (B) any
mandatory  sinking  fund  payments  or  analogous  payments  applicable  to  the
Outstanding  Securities of such series on the day on which such payments are due
and payable in accordance  with terms of this Indenture and of such  Securities.
For this purpose,  "GOVERNMENT OBLIGATIONS" means securities that are (I) direct
obligations of the government  which issued the currency in which the Securities
of such  series  are  denominated  for the  payment  of which its full faith and
credit is pledged or (II)  obligations  of a Person  controlled or supervised by
and acting as an agency or instrumentality of such

                                      -82-
<PAGE>
government  the payment of which is  unconditionally  guaranteed as a full faith
and  credit  obligation  by such  government,  which,  in either  case,  are not
callable  or  redeemable  at the  option of the issuer  thereof,  and shall also
include a depository  receipt issued by a bank (as defined in Section 3(a)(2) of
the  Securities  Act of 1933, as amended) as custodian  with respect to any such
Government  Obligation or a specific  payment of principal of or interest on any
such Government  Obligation held by such custodian for the account of the holder
of such  depository  receipt,  provided  that  (except as  required by law) such
custodian is not authorized to make any deduction from the amount payable to the
holder of such  depository  receipt from any amount received by the custodian in
respect of such Government Obligation or the specific payment of principal of or
interest on such Government Obligation evidenced by such depository receipt.

                  (b) No Event of Default or event  which,  with notice or lapse
of time or both, would become an Event of Default with respect to the Securities
of such series shall have occurred and be continuing on the date of such deposit
or, insofar as subsections 6.01(d) and (e) are concerned, at any time during the
period  ending  on the  91st  day  after  the  date of such  deposit  (it  being
understood  that  this  condition  shall  not  be  deemed  satisfied  until  the
expiration of such period).

                  (c) Such defeasance or covenant defeasance shall not result in
a breach or violation of, or constitute a default  under,  this Indenture or any
other  agreement or instrument to which the Company is a party or by which it is
bound.

                  (d) Such defeasance or covenant defeasance shall not cause any
securities  of such  series  then  listed on any  national  securities  exchange
registered  under  the  Securities  Exchange  Act of  1934,  as  amended,  to be
delisted.

                  (e) In the case of an election with respect to Section  13.02,
the Company  shall have  delivered to the Trustee an Opinion of Counsel  stating
that (i) the Company has received  from the Internal  Revenue  Service a private
letter  ruling   pertaining  to  this   transaction  or  a  comparable  form  of
transaction, or (ii) since the date of this Indenture there has been a change in
the applicable  Federal income tax law (including,  but not limited to, a change
in the Internal Revenue Code, proposed, temporary or final Treasury regulations,
Revenue  Rulings,   Revenue   Procedures,   Internal  Revenue  Service  Notices,
Announcements,  and other  public  announcements),  in either case to the effect
that,  and based thereon such opinion  shall  confirm  that,  the Holders of the
Outstanding  Securities of such series will not recognize  income,  gain or loss
for Federal income tax purposes as a result of such

                                      -83-
<PAGE>
defeasance and will be subject to Federal income tax on the same amounts, in the
same manner and at the same times as would have been the case if such defeasance
had not occurred.

                  (f) In the case of an election with respect to Section  13.03,
the  Company  shall have  delivered  to the Trustee an opinion of Counsel to the
effect that the Holders of the  Outstanding  Securities  of such series will not
recognize  income,  gain or loss for Federal  income tax purposes as a result of
such covenant  defeasance  and will be subject to Federal income tax on the same
amounts, in the same manner and at the same times as would have been the case if
such covenant defeasance had not occurred.

                  (g) Such defeasance or covenant  defeasance  shall be effected
in compliance with any additional terms,  conditions or limitations which may be
imposed on the Company in connection therewith pursuant to Section 3.01.

                  (h)  The  Company  shall  have  delivered  to the  Trustee  an
Officers'  Certificate  and  an  Opinion  of  Counsel,  each  stating  that  all
conditions  precedent  provided  for  relating  to either the  defeasance  under
Section  13.02 or the covenant  defeasance  under Section 13.03 (as the case may
be) have been complied with.

                  SECTION 13.05.  DEPOSITED MONEY AND GOVERNMENT  OBLIGATIONS TO
BE HELD IN TRUST; OTHER MISCELLANEOUS  PROVISIONS.  Subject to the provisions of
Section  12.04,  all money and  Government  Obligations  (including the proceeds
thereof) deposited with the Trustee (or other qualifying trustee -- collectively
for purposes of this Section 13.05, the "Trustee")  pursuant to Section 13.04 in
respect of the  Outstanding  Securities of a particular  series shall be held in
trust and applied by the Trustee,  in  accordance  with the  provisions  of such
Securities and this  Indenture,  to the payment,  either directly or through any
paying  agent  (including  the  Company  acting as its own paying  agent) as the
Trustee may determine,  to the Holders of such Securities of all sums due and to
become due thereon in respect of principal (and premium,  if any),  interest and
Additional  Amounts,  if any, but such money need not be  segregated  from other
funds except to the extent required by law.

                  The Company shall pay and  indemnify  the Trustee  against any
tax,  fee  or  other  charge  imposed  on or  assessed  against  the  Government
Obligations  deposited  pursuant to Section  13.04 or the principal and interest
received in respect thereof,  other than any such tax, fee or other charge which
by law is for the account of the Holders of the  Outstanding  Securities of such
series.

                                      -84-
<PAGE>
                  Anything   in   this   Article   Thirteen   to  the   contrary
notwithstanding,  the Trustee  shall  deliver or pay to the Company from time to
time upon  Company  request any money or  Government  obligations  held by it as
provided in Section 13.04 which, in the opinion of a nationally  recognized firm
of independent public accountants  expressed in a written  certification thereof
delivered to the Trustee,  are in excess of the amount  thereof which would then
be required to be deposited  for the purpose for which such money or  Government
Obligations were deposited.


                                ARTICLE FOURTEEN
                                  SUBORDINATION

                  SECTION  14.01.  AGREEMENT TO  SUBORDINATE.  The Company,  for
itself and its  successors,  and each Holder,  by his  acceptance of Securities,
agree that the payment of the  principal  of, any premium or interest on, or any
other amounts due on the Securities is subordinated in right of payment,  to the
extent and in the manner stated in this Article  Fourteen,  to the prior payment
in full  of all  Senior  Indebtedness.  Each  Holder  by his  acceptance  of the
Securities  authorizes and directs the Trustee on his behalf to take such action
as may be  necessary or  appropriate  to  effectuate,  as between the holders of
Senior Indebtedness and such Holder, the subordination  provided in this Article
and appoints the Trustee his  attorney-in-fact  for such purpose. If the Trustee
does  not file a proper  claim  or  proof  of debt in the form  required  in any
voluntary or involuntary dissolution,  winding up, liquidation,  reorganization,
arrangement  or similar  proceedings  relating to the  Company  prior to 30 days
before the  expiration of time to file such claim or claims,  then any holder or
holders of Senior  Indebtedness or their  representative or representatives  are
hereby  authorized to and have the right to file an appropriate claim for and on
behalf of the Holders.

                  The  Securities  shall be  senior in right of  payment  and in
rights upon liquidation to all Junior Subordinated Indebtedness.

                  SECTION 14.02. NO PAYMENT ON SECURITIES IF SENIOR INDEBTEDNESS
IN DEFAULT.  Anything in this  Indenture  to the  contrary  notwithstanding,  no
payment on account of  principal  of (and  premium,  if any) or  Redemption  of,
interest on or other amounts due on the Securities, and no Redemption, purchase,
or other  acquisition  of the  Securities,  shall be made by or on behalf of the
Company (i) unless full payment of amounts then due for principal, sinking funds
and interest and of all other

                                      -85-
<PAGE>
amounts then due on all Senior  Indebtedness  has been made or duly provided for
pursuant to the terms of the instrument governing such Senior Indebtedness, (ii)
if, at the time of such payment,  Redemption,  purchase or other acquisition, or
immediately  after  giving  effect  thereto,  there shall exist under any Senior
Indebtedness,  or any  agreement  pursuant to which any Senior  Indebtedness  is
issued, any default, which default shall not have been cured or waived and which
default shall have resulted in the full amount of such Senior Indebtedness being
declared due and payable or (iii) if, at the time of such  payment,  Redemption,
purchase or other  acquisition,  the Trustee shall have received  written notice
from the holder or holders of any Senior Indebtedness or their representative or
representatives  (a "PAYMENT  BLOCKAGE  NOTICE")  that there  exists  under such
Senior Indebtedness, or any agreement pursuant to which such Senior Indebtedness
is  issued,  any  default,  which  default  shall not have been cured or waived,
permitting  the  holders  thereof  to  declare  the full  amount of such  Senior
Indebtedness  due and payable,  but only for the period (the  "PAYMENT  BLOCKAGE
PERIOD")  commencing on the date of receipt of the Payment  Blockage  Notice and
ending (unless earlier  terminated by notice given to the Trustee by the holders
of such Senior  Indebtedness) on the earlier of (A) the date on which such event
of default  shall have been cured or waived or (B) 180 days from the  receipt of
the Payment  Blockage  Notice.  Upon  termination of a Payment  Blockage Period,
payments on account of  principal  of, any premium or interest  on, or any other
amounts  payable  with  respect to the  Securities  (other than  amounts due and
payable by reason of the  acceleration  of the maturity of the  Securities)  and
redemptions,  purchases or other acquisitions may be made by or on behalf of the
Company.  Notwithstanding  anything herein to the contrary, (A) only one Payment
Blockage  Notice may be given  during any  period of 360  consecutive  days with
respect to the same event of default and any other events of default on the same
issue of Senior Indebtedness existing and known to the Person giving such notice
at the  time of  such  notice  and (B) no new  Payment  Blockage  Period  may be
commenced by the holder or holders of the same issue of Senior  Indebtedness  or
their  representative  or  representatives  during any period of 360 consecutive
days  unless  all events of  default  which  were the object of the  immediately
preceding  Payment Blockage  Notice,  and any other event of default on the same
issue of Senior Indebtedness existing and known to the Person giving such notice
at the time of such notice,  have been cured or waived.  The  provisions of this
Section  14.02 shall not prevent a sinking  fund  payment (if any) in respect of
Securities made with Securities properly acquired prior to the happening of such
default.

                                      -86-
<PAGE>
                  In the event  that,  notwithstanding  the  provisions  of this
Section 14.02, payments are made by or on behalf of the Company in contravention
of the  provisions of this Section  14.02,  such  payments  shall be held by the
Trustee,  any  Paying  Agent or the  Holders,  as  applicable,  in trust for the
benefit  of, and shall be paid over to and  delivered  to, the holders of Senior
Indebtedness or their representative or the trustee under the indenture or other
agreement  (if any),  pursuant to which any  instruments  evidencing  any Senior
Indebtedness may have been issued, as their respective interests may appear, for
application to the payment of all Senior  Indebtedness  remaining  unpaid to the
extent  necessary to pay all Senior  Indebtedness in full in accordance with the
terms of such Senior Indebtedness, after giving effect to any concurrent payment
or distribution to or for the holders of Senior Indebtedness.

                  The Company  shall give prompt  written  notice to the Trustee
and any Paying Agent of any default under any Senior  Indebtedness  or under any
agreement pursuant to which any Senior Indebtedness may have been issued.

                  SECTION 14.03.  DISTRIBUTION  ON  ACCELERATION  OF SECURITIES;
DISSOLUTION  AND  REORGANIZATION;  SUBROGATION OF  SECURITIES.  (a) Upon (i) any
acceleration of the principal  amount due on the Securities  because of an Event
of  Default  or  (ii)  any  distribution  of  assets  of the  Company  upon  any
dissolution,  winding up,  liquidation or reorganization of the Company (whether
in bankruptcy,  insolvency or receivership proceedings or upon an assignment for
the benefit of creditors or any other  dissolution,  winding up,  liquidation or
reorganization of the Company):

                  (1) the  holders of all  Senior  Indebtedness  shall  first be
         entitled  to receive  payment  in full of the  principal  thereof,  the
         interest  thereon and any other amounts due thereon  before the Holders
         are  entitled to receive  payment on account of the  principal  of, any
         premium or interest on, or any other amounts due on the Securities;

                  (2) any  payment or  distribution  of assets of the Company of
         any kind or character,  whether in cash,  property or securities  other
         than  securities  of  the  Company  as  reorganized  or  readjusted  or
         securities  of the Company or any other  corporation  provided for by a
         plan  of  reorganization  or  readjustment  the  payment  of  which  is
         subordinate,  at least to the extent provided in this Article  Fourteen
         with  respect  to  the  Securities,  to the  payment  in  full  without
         diminution or modification by such plan of all Senior Indebtedness), to
         which the Holders or the Trustee

                                      -87-
<PAGE>
         would be entitled  except for the provisions of this Article,  shall be
         paid by the liquidating  trustee or agent or other Person making such a
         payment or distribution, directly to the holders of Senior Indebtedness
         (or their  representatives)  or  trustee(s)  acting  on their  behalf),
         ratably  according to the aggregate amounts remaining unpaid on account
         of the  principal of, any premium or interest on, and other amounts due
         on the Senior  Indebtedness  held or represented by each, to the extent
         necessary to make payment in full of all Senior Indebtedness  remaining
         unpaid,  after giving effect to any concurrent  payment or distribution
         to the holders of such Senior Indebtedness; and

                  (3) in the event  that,  notwithstanding  the  foregoing,  any
         payment  or  distribution  of  assets  of the  Company  of any  kind or
         character,   whether  in  cash,   property  or  securities  other  than
         securities of the Company as reorganized or readjusted or securities of
         the  Company  or any  other  corporation  provided  for  by a  plan  of
         reorganization or readjustment the payment of which is subordinate,  at
         least to the  extent  provided  in this  Article  with  respect  to the
         Securities,  to the payment in full without  diminution or modification
         by such plan of Senior Indebtedness),  shall be received by the Trustee
         or the Holders  before all Senior  Indebtedness  is paid in full,  such
         payment or distribution  shall be held in trust for the benefit of, and
         be paid over to,  the  holders  of the  Senior  Indebtedness  remaining
         unpaid  (or  their  representatives)  or  trustee(s)  acting  on  their
         behalf),  ratably as aforesaid,  for application to the payment of such
         Senior  Indebtedness until all such Senior Indebtedness shall have been
         paid  in  full,  after  giving  effect  to any  concurrent  payment  or
         distribution to the holders of such Senior Indebtedness.

                  Subject to the payment in full of all Senior Indebtedness, the
Holders shall be subrogated to the rights of the holders of Senior  Indebtedness
to receive  payments or  distributions  of cash,  property or  securities of the
Company  applicable  to the  Senior  Indebtedness  until the  principal  of, any
premium  or  interest  on, and any other  amounts  payable  with  respect to the
Securities shall be paid in full and, for purposes of such subrogation,  no such
payments  or  distributions  to the  holders  of  Senior  Indebtedness  of cash,
property or securities  which otherwise would have been payable or distributable
to Holders shall,  as between the Company,  its creditors other than the holders
of Senior  Indebtedness,  and the  Holders,  be  deemed  to be a payment  by the
Company to or on account of the Senior  Indebtedness,  it being  understood that
the  provisions  of this Article  Fourteen  are and are intended  solely for the
purpose of

                                      -88-
<PAGE>
defining the relative rights of the Holders, on the one hand, and the holders of
Senior Indebtedness, on the other hand.

                  Nothing  contained  in  this  Article  or  elsewhere  in  this
Indenture or in the  Securities is intended to or shall  impair,  as between the
Company and its  creditors  other than the holders of Senior  Indebtedness,  the
obligation of the Company,  which is absolute and  unconditional,  to pay to the
Holders the principal of, any premium or interest on, and any Additional Amounts
with respect to the Securities as and when the same shall become due and payable
in accordance with the terms of the Securities or is intended to or shall affect
the  relative  rights of the Holders  and  creditors  of the Company  other than
holders of Senior  Indebtedness or, as between the Company and the Trustee,  the
obligations of the Company to the Trustee,  nor shall anything herein or therein
prevent  the Trustee or the  Holders  from  exercising  all  remedies  otherwise
permitted by law upon default under this  Indenture,  subject to the rights,  if
any,  under this  Article of the  holders of Senior  Indebtedness  in respect of
cash,  property and securities of the company  received upon the exercise of any
such  remedy.  Upon  distribution  of assets of the Company  referred to in this
Article, the Trustee,  subject to the provisions of Section 7.01 hereof, and the
Holders shall be entitled to rely upon a certificate of the liquidating  trustee
or agent or other  Person  making  any  distribution  to the  Trustee  or to the
Holders for the purpose of ascertaining  the Persons  entitled to participate in
such distribution, the holders of the Senior Indebtedness and other indebtedness
of the Company,  the amount  thereof or payable  thereon,  the amount or amounts
paid or  distributed  thereon and all other facts  pertinent  thereto or to this
Article. The Trustee,  however, shall not be deemed to owe any fiduciary duty to
the holders of Senior  Indebtedness.  Nothing contained in this Article Fourteen
or elsewhere in this Indenture,  or in any of the Securities,  shall prevent the
application by the Trustee of any moneys which were deposited with it hereunder,
prior to its  receipt of  written  notice of facts  which  would  prohibit  such
application,  for the purpose of the  payment of or on account of the  principal
of, any premium or interest  on, or any  Additional  Amounts with respect to the
Securities  unless,  prior to the date on which such  application is made by the
Trustee,  the Trustee shall be charged with notice under Section 14.03(c) hereof
of the facts which would prohibit the making of such application.

                  (b) The  provisions of this Article shall not be applicable to
any cash, properties or securities received by the Trustee or by any Holder when
received as a holder of Senior  Indebtedness and nothing in this Indenture shall
deprive the Trustee or such Holder of any of its rights as such holder.

                                      -89-
<PAGE>
                  (c) The  Company  shall  give  prompt  written  notice  to the
Trustee of any fact known to the Company which would  prohibit the making of any
payment of money to or by the Trustee in respect of the  Securities  pursuant to
the  provisions  of this  Article.  The Trustee,  subject to the  provisions  of
Section 7.01 hereof, shall be entitled to assume that no such fact exists unless
the Company or any holder of Senior  Indebtedness  or any trustee  therefor  has
given such notice to the Trustee. Notwithstanding the provisions of this Article
or any other provisions of this Indenture, the Trustee shall not be charged with
knowledge of the  existence  of any fact which would  prohibit the making of any
payment of monies to or by the Trustee in respect of the Securities  pursuant to
the provisions in this Article, unless, and until three Business Days after, the
Trustee shall have received  written  notice  thereof at the address  designated
pursuant  to Section  17.03  hereof from the Company or any holder or holders of
Senior  Indebtedness or from any trustee therefor;  and, prior to the receipt of
any such written notice, the Trustee,  subject to the provisions of Section 7.01
hereof,  shall be entitled in all respects  conclusively  to assume that no such
fact  exists;  provided  that if on a date  not  less  than  two  Business  Days
immediately  preceding  the date upon which by the terms  hereof any such monies
may become payable for any purpose including,  without limitation, the principal
of, any premium or interest on, and any  Additional  Amounts with respect to any
Security,  and any amounts immediately due and payable upon the execution of any
instrument  acknowledging  satisfaction  and  discharge  of this  Indenture,  as
provided in Article  Four  hereof),  the Trustee  shall not have  received  with
respect to such monies the notice provided for in this Section  14.03(c),  then,
anything  herein  contained to the contrary  notwithstanding,  the Trustee shall
have full power and  authority  to receive  such monies and to apply the same to
the  purpose  for which they were  received,  and shall not be  affected  by any
notice to the contrary which may be received by it on or after such prior date.

                  The Trustee shall be entitled to rely on the delivery to it of
a  written  notice  by a Person  representing  himself  to be a holder of Senior
Indebtedness  (or a trustee  on behalf of such  holder) to  establish  that such
notice has been given by a holder of Senior Indebtedness (or a trustee on behalf
of any such holder or holders). In the event that the Trustee determines in good
faith that further  evidence is required with respect to the right of any Person
as a holder of Senior Indebtedness to participate in any payment or distribution
pursuant  to this  Article,  the  Trustee  may  request  such  Person to furnish
evidence  to the  reasonable  satisfaction  of the  Trustee  as to the amount of
Senior  Indebtedness  held by such  Person,  the extent to which such  Person is
entitled to participate in such payment or distribution and

                                      -90-
<PAGE>
any other facts pertinent to the rights of such Person under this Article,  and,
if such  evidence  is not  furnished,  the Trustee may defer any payment to such
Person pending judicial  determination as to the right of such Person to receive
such payment;  nor shall the Trustee be charged with  knowledge of the curing or
waiving of any default of the  character  specified  in Section  14.02 hereof or
that any  event or any  condition  preventing  any  payment  in  respect  of the
Securities  shall have ceased to exist,  unless and until the Trustee shall have
received an Officer's Certificate to such effect.

                  (d) The  provisions  of this Section  14.03  applicable to the
Trustee shall also apply to any Paying Agent for the Company.

                  SECTION   14.04.    RELIANCE   BY   SENIOR   INDEBTEDNESS   ON
SUBORDINATION PROVISIONS.  Each Holder of any Security by his acceptance thereof
acknowledges and agrees that the foregoing subordination provisions are, and are
intended to be, an inducement and a consideration  for each holder of any Senior
Indebtedness, whether such Senior Indebtedness was created or acquired before or
after the issuance of the  Securities,  to acquire and  continue to hold,  or to
continue  to  hold,  such  Senior  Indebtedness,   and  such  holder  of  Senior
Indebtedness  shall be deemed  conclusively to have relied on such subordination
provisions in acquiring and  continuing to hold, or in continuing to hold,  such
Senior  Indebtedness.  Notice  of any  default  in  the  payment  of any  Senior
Indebtedness,  except  as  expressly  stated  in this  Article,  and  notice  of
acceptance  of the  provisions  hereof are hereby  expressly  waived.  Except as
otherwise  expressly  provided herein, no waiver,  forbearance or release by any
holder of Senior  Indebtedness  under  such  Senior  Indebtedness  or under this
Article shall  constitute a release of any of the  obligations or liabilities of
the Trustee or Holders of the  Securities  provided in this  Article.  Except as
otherwise expressly provided herein, no right of any present or future holder of
Senior Indebtedness to enforce the subordination  provisions hereof shall at any
time or in any way be prejudiced or impaired by any act or failure to act on the
part of the  Company or any such holder or by any  noncompliance  by the Company
with the terms,  provisions  or covenants of this  Indenture,  regardless of any
knowledge thereof which such holder may have otherwise been charged with.

                  SECTION 14.05. TRUSTEE'S RELATION TO SENIOR INDEBTEDNESS.  The
Trustee in its individual capacity shall be entitled to all the rights set forth
in this Article in respect of any Senior Indebtedness at any time held by it, to
the same extent as any holder of Senior Indebtedness, and nothing in this

                                      -91-
<PAGE>
Indenture shall deprive the Trustee of any of its rights as such holder.

                  With  respect  to the  holders  of  Senior  Indebtedness,  the
Trustee  undertakes  to  perform or to observe  only such of its  covenants  and
obligations  as are  specifically  set  forth in this  Article,  and no  implied
covenants  or  obligations  with  respect to the holders of Senior  Indebtedness
shall be read into this Indenture against the Trustee. The Trustee shall not owe
any  fiduciary  duty to the holders of Senior  Indebtedness  but shall have only
such obligations to such holders as are expressly set forth in this Article.

                  Each Holder of a Security by his acceptance thereof authorizes
and directs the Trustee on his behalf to take such action as may be necessary or
appropriate  to  effectuate  the  subordination  provided  in this  Article  and
appoints  the  Trustee  his  attorney-in-fact  for any and  all  such  purposes,
including,  in the  event  of any  dissolution,  winding  up or  liquidation  or
reorganization  under any applicable  bankruptcy law of the Company  (whether in
bankruptcy,  insolvency or  receivership  proceedings or otherwise),  the timely
filing of a claim for the unpaid balance of such Holder's Securities in the form
required in such  proceedings  and the causing of such claim to be approved.  If
the Trustee does not file a claim or proof of debt in the form  required in such
proceedings  prior to 10 days  before  the  expiration  of the time to file such
claims or proofs,  then the holders of Senior  Indebtedness,  jointly,  or their
representative  shall have the right to demand,  sue for,  collect,  receive and
receipt for the payments and  distributions  in respect of the Securities  which
are required to be paid or delivered  to the holders of Senior  Indebtedness  as
provided in this  Article and to file and prove all claims  therefor and to take
all such other action in the name of the Holders or otherwise, as such holder of
Senior  Indebtedness or representative  thereof may determine to be necessary or
appropriate for the enforcement of the provisions of this Article.

                  SECTION 14.06.  OTHER  PROVISIONS  SUBJECT  HERETO.  Except as
expressly  stated in this Article,  notwithstanding  anything  contained in this
Indenture  to the  contrary,  all  the  provisions  of  this  Indenture  and the
Securities  are subject to the provisions of this Article.  However,  nothing in
this Article  shall apply to or  adversely  affect the claims of, or payment to,
the Trustee pursuant to Section 7.06.

                                      -92-
<PAGE>
                                 ARTICLE FIFTEEN
                                   CONVERSION

                  SECTION 15.01. CONVERSION PRIVILEGE. If so provided in a Board
Resolution  with  respect  to the  Securities  of any  series,  the  Holder of a
Security  of such  series  shall have the right,  at such  Holder's  option,  to
convert,  in  accordance  with the terms of such series of  Securities  and this
Article  Fifteen,  all or any  part  (in a  denomination  of,  unless  otherwise
specified  in a Board  Resolution  or  supplemental  indenture  with  respect to
Securities of such series,  $1,000 in principal amount or any integral  multiple
thereof) of such Security  into shares of Common Stock or, as to any  Securities
called  for  redemption,  at any time  prior to the time and date fixed for such
redemption  (unless the Company shall  default in the payment of the  Redemption
Price, in which case such right shall not terminate at such time and date).  The
provisions of this Article  Fifteen shall not be applicable to the Securities of
a series unless  otherwise  specified in a Board  Resolution with respect to the
Securities of such series.

                  SECTION  15.02.   CONVERSION   PROCEDURE;   CONVERSION  PRICE;
FRACTIONAL  SHARES.  (a) Each Security to which this Article is applicable shall
be convertible at the office of the Conversion Agent, and at such other place or
places,  if any,  specified in a Board Resolution with respect to the Securities
of such series,  into fully paid and  nonassessable  shares  (calculated  to the
nearest  1/100th of a share) of Common Stock.  The Securities  will be converted
into shares of Common  Stock at the  Conversion  Price  therefor.  No payment or
adjustment  shall be made in respect of dividends on the Common Stock or accrued
interest on a converted  Security  except as  described  in Section  15.09.  The
Company may, but shall not be required,  in  connection  with any  conversion of
Securities,  to issue a fraction of a share of Common  Stock and, if the Company
shall  determine not to issue any such fraction,  the Company shall,  subject to
Section 15.03(4),  make a cash payment (calculated to the nearest cent) equal to
such  fraction  multiplied  by the Closing Price of the Common Stock on the last
Trading Day prior to the date of conversion.

                  (b)  Before  any Holder of a  Security  shall be  entitled  to
convert the same into Common Stock,  such Holder shall  surrender  such Security
duly endorsed to the Company or in blank, at the office of the Conversion  Agent
or at such other place or places,  if any,  specified in a Board Resolution with
respect to the  Securities of such series,  and shall give written notice to the
Company at said  office or place  that he elects to  convert  the same and shall
state in writing therein the principal  amount of Securities to be converted and
the name or names (with addresses)

                                      -93-
<PAGE>
in which he wishes  the  certificate  or  certificates  for  Common  Stock to be
issued; provided, however, that no Security or portion thereof shall be accepted
for  conversion  unless the  principal  amount of such Security or such portion,
when added to the principal  amount of all other  Securities or portions thereof
then being  surrendered by the Holder thereof for  conversion,  exceeds the then
effective Conversion Price with respect thereto. If more than one Security shall
be surrendered for conversion at one time by the same Holder, the number of full
shares of Common  Stock  which shall be  deliverable  upon  conversion  shall be
computed on the basis of the aggregate  principal  amount of the  Securities (or
specified  portions  thereof to the extent  permitted  thereby) so  surrendered.
Subject  to  the  next  succeeding  sentence,  the  Company  will,  as  soon  as
practicable thereafter, issue and deliver at said office or place to such Holder
of a Security,  or to his nominee or  nominees,  certificates  for the number of
full  shares  of  Common  Stock to which he  shall  be  entitled  as  aforesaid,
together, subject to the last sentence of paragraph (a) above, with cash in lieu
of any fraction of a share to which he would otherwise be entitled.  The Company
shall not be required to deliver  certificates  for shares of Common Stock while
the stock transfer books for such stock or the Security Register are duly closed
for any purpose, but certificates for shares of Common Stock shall be issued and
delivered  as soon as  practicable  after the  opening of such books or Security
Register.  A Security  shall be deemed to have been converted as of the close of
business  on the  date of the  surrender  of such  Security  for  conversion  as
provided above,  and the Person or Persons  entitled to receive the Common Stock
issuable  upon such  conversion  shall be treated for all purposes as the record
Holder or Holders of such Common Stock as of the close of business on such date.
In case any Security shall be surrendered  for partial  conversion,  the Company
shall  execute and the  Trustee  shall  authenticate  and deliver to or upon the
written order of the Holder of the Securities so surrendered,  without charge to
such Holder  (subject to the  provisions  of Section  15.08),  a new Security or
securities in authorized denominations in an aggregate principal amount equal to
the unconverted portion of the surrendered Security.

                  SECTION  15.03.  ADJUSTMENT  OF  CONVERSION  PRICE FOR  COMMON
STOCK.  The  Conversion  Price with respect to any Security which is convertible
into Common Stock shall be adjusted from time to time as follows:

                  (1) In case the  Company  shall,  at any time or from  time to
         time while any of such securities are  outstanding,  (i) pay a dividend
         in shares of its Common Stock to holders of Common Stock,  (ii) combine
         its outstanding shares of

                                      -94-
<PAGE>
         Common  Stock into a smaller  number of shares of Common  Stock,  (iii)
         subdivide its outstanding  shares of Common Stock into a greater number
         of  shares of Common  Stock or (iv)  make a  distribution  in shares of
         Common Stock to holders of Common Stock,  then the Conversion  Price in
         effect  immediately  before such  action  shall be adjusted so that the
         Holders of such Securities,  upon conversion  thereof into Common Stock
         immediately following such event, shall be entitled to receive the kind
         and amount of shares of capital  stock of the Company  which they would
         have owned or been  entitled to receive upon or by reason of such event
         if such  Securities  had been converted  immediately  before the record
         date (or, if no record date,  the  effective  date) for such event.  An
         adjustment  made  pursuant  to  this  Section   15.03(l)  shall  become
         effective  retroactively  immediately after the record date in the case
         of a dividend or distribution and shall become effective  retroactively
         immediately  after the effective  date in the case of a subdivision  or
         combination.  For the purposes of this Section 15.03(l), each Holder of
         Securities  shall be deemed to have  failed  to  exercise  any right to
         elect the kind or amount of securities  receivable  upon the payment of
         any such dividend,  subdivision,  combination or distribution (provided
         that if the kind or amount of securities receivable upon such dividend,
         subdivision,  combination  or  distribution  is not the  same  for each
         nonelecting  share,  then the kind and  amount of  securities  or other
         property  receivable  upon such dividend,  subdivision,  combination or
         distribution for each nonelecting  share shall be deemed to be the kind
         and amount so  receivable  per share by a plurality of the  nonelecting
         shares).

                  (2) In case the  Company  shall,  at any time or from  time to
         time while any of such  Securities  are  outstanding,  issue  rights or
         warrants to all holders of shares of its Common  Stock  entitling  them
         (for a period  expiring  within 45 days after the record  date for such
         issuance)  to  subscribe  for or  purchase  shares of Common  Stock (or
         securities  convertible  into  shares of  Common  Stock) at a price per
         share less than the Current  Market  Price of the Common  Stock at such
         record date (treating the price per share of the securities convertible
         into  Common  Stock as equal to (x) the sum of (i) the price for a unit
         of the security  convertible  into Common Stock and (ii) any additional
         consideration  initially  payable upon the  conversion of such security
         into Common  Stock  divided by (y) the number of shares of Common Stock
         initially underlying such convertible  security),  the Conversion Price
         with  respect to such  Securities  shall be  adjusted  so that it shall
         equal the price determined by

                                      -95-
<PAGE>
         dividing the Conversion Price in effect  immediately  prior to the date
         of issuance of such rights or warrants by a fraction,  the numerator of
         which shall be the number of shares of Common Stock  outstanding on the
         date of  issuance  of such  rights  or  warrants  plus  the  number  of
         additional  shares of Common Stock offered for subscription or purchase
         (or into which the  convertible  securities  so offered  are  initially
         convertible),  and the  denominator  of which  shall be the  number  of
         shares of Common  Stock  outstanding  on the date of  issuance  of such
         rights or warrants  plus the number of shares or  securities  which the
         aggregate offering price of the total number of shares or securities so
         offered for  subscription or purchase (or the aggregate  purchase price
         of the convertible  securities so offered plus the aggregate  amount of
         any additional  consideration initially payable upon conversion of such
         securities  into Common  Stock) would  purchase at such Current  Market
         Price of the Common  Stock.  Such  adjustment  shall  become  effective
         retroactively  immediately  after the record date for the determination
         of stockholders entitled to receive such rights or warrants.

                  (3) In case the  Company  shall,  at any time or from  time to
         time while any of such  Securities are  outstanding,  distribute to all
         holders of shares of its Common  Stock(including  any such distribution
         made in connection with a consolidation  or merger in which the Company
         is the  continuing  corporation  and the Common Stock is not changed or
         exchanged) cash,  evidences of its  indebtedness,  securities or assets
         (excluding  (i) regular  periodic  cash  dividends in amounts,  if any,
         determined from time to time by the Board of Directors,  (ii) dividends
         payable in shares of Common  Stock for which  adjustment  is made under
         Section  15.03(l)  or (iii)  rights or  warrants  to  subscribe  for or
         purchase  securities  of the Company  (excluding  those  referred to in
         Section  15.03(2))),  then in each such case the Conversion  Price with
         respect to such Securities shall be adjusted so that it shall equal the
         price determined by dividing the Conversion Price in effect immediately
         prior to the date of such distribution by a fraction,  the numerator of
         which  shall be the  Current  Market  Price of the Common  Stock on the
         record date referred to below,  and the  denominator  of which shall be
         such Current Market Price of the Common Stock less the then fair market
         value (as  determined  by the Board of Directors of the Company,  whose
         determination shall be conclusive) of the portion of the cash or assets
         or evidences of  indebtedness  or securities so  distributed or of such
         subscription rights or warrants applicable to one share of Common Stock
         (provided  that  such  denominator  shall  never  be  less  than  1.0);
         provided,

                                      -96-
<PAGE>
         however,  that  no  adjustment  shall  be  made  with  respect  to  any
         distribution  of rights to  purchase  securities  of the  Company  if a
         Holder of Securities would otherwise be entitled to receive such rights
         upon conversion at any time of such Securities into Common Stock unless
         such rights are  subsequently  redeemed by the  Company,  in which case
         such  redemption  shall be treated for  purposes  of this  section as a
         dividend on the Common Stock.  Such adjustment  shall become  effective
         retroactively  immediately  after the record date for the determination
         of stockholders entitled to receive such distribution; and in the event
         that such distribution is not so made, the Conversion Price shall again
         be  adjusted to the  Conversion  Price which would then be in effect if
         such record date had not been fixed.

                  (4) The  Company  shall be  entitled  to make such  additional
         adjustments in the Conversion  Price,  in addition to those required by
         subsections  15.03(1),  15.03(2) and 15.03(3), as shall be necessary in
         order  that  any  dividend  or  distribution   of  Common  Stock,   any
         subdivision,  reclassification or combination of shares of Common Stock
         or any  issuance of rights or  warrants  referred to above shall not be
         taxable to the holders of Common Stock for United States Federal income
         tax purposes.

                  (5) In any case in which this Section 15.03 shall require that
         any  adjustment be made  effective as of or  retroactively  immediately
         following a record  date,  the Company may elect to defer (but only for
         five (5) Trading Days following the filing of the statement referred to
         in Section  15.05)  issuing to the Holder of any  Securities  converted
         after such  record  date the shares of Common  Stock and other  capital
         stock of the Company  issuable upon such  conversion over and above the
         shares of Common Stock and other capital stock of the company  issuable
         upon such  conversion  on the basis of the  Conversion  Price  prior to
         adjustment;  provided,  however, that the Company shall deliver to such
         Holder a due  bill or  other  appropriate  instrument  evidencing  such
         Holder's right to receive such additional shares upon the occurrence of
         the event requiring such adjustment.

                  (6) All calculations under this Section 15.03 shall be made to
         the nearest cent or one-hundredth of a share or security, with one-half
         cent  and  0.005  of  a  share,  respectively,  being  rounded  upward.
         Notwithstanding  any other provision of this Section 15.03, the Company
         shall not be required to make any  adjustment of the  Conversion  Price
         unless such adjustment would require an increase or decrease

                                      -97-
<PAGE>
         of at least 1% of such price.  Any lesser  adjustment  shall be carried
         forward  and  shall be made at the time of and  together  with the next
         subsequent   adjustment   which,   together  with  any   adjustment  or
         adjustments so carried forward, shall amount to an increase or decrease
         of at least 1% in such price. Any adjustments  under this Section 15.03
         shall  be  made  successively  whenever  an  event  requiring  such  an
         adjustment occurs.

                  (7)  In  the  event  that  at  any  time,  as a  result  of an
         adjustment  made  pursuant  to this  Section  15.03,  the Holder of any
         Security thereafter surrendered for conversion shall become entitled to
         receive any shares of stock of the Company  other than shares of Common
         Stock  into  which the  Securities  originally  were  convertible,  the
         Conversion  Price of such other shares so receivable upon conversion of
         any such Security shall be subject to adjustment from time to time in a
         manner  and  on  terms  as  nearly  equivalent  as to  practicable  the
         provisions with respect to Common Stock contained in subparagraphs  (1)
         through (6) of this Section 15.03, and the provision of Sections 15.01,
         15.02 and 15.04  through  15.09 with  respect to the Common Stock shall
         apply  on like or  similar  terms  to any  such  other  shares  and the
         determination of the Board of Directors as to any such adjustment shall
         be conclusive.

                  (8) No  adjustment  shall be made pursuant to this Section (i)
         if the effect thereof would be to reduce the Conversion Price below the
         par value (if any) of the  Common  Stock or (ii)  subject  to  15.03(5)
         hereof,  with  respect to any Security  that is converted  prior to the
         time such adjustment otherwise would be made.

                  SECTION 15.04. CONSOLIDATION OR MERGER OF THE COMPANY. In case
of either (a) any consolidation or merger to which the Company is a party, other
than a merger  or  consolidation  in  which  the  company  is the  surviving  or
continuing  corporation and which does not result in a  reclassification  of, or
change  (other  than a change  in par value or from par value to no par value or
from no par value to par value, as a result of a subdivision or combination) in,
outstanding  shares  of  Common  Stock or (b) any sale or  conveyance  of all or
substantially  all of the property and assets of the Company to another  Person,
then each Security then  outstanding  shall be  convertible  from and after such
merger,  consolidation,  sale or conveyance of property and assets into the kind
and amount of shares of stock or other securities and property  (including cash)
receivable upon such  consolidation,  merger,  sale or conveyance by a holder of
the number of shares of

                                      -98-
<PAGE>
Common Stock into which such  Securities  would have been converted  immediately
prior to such consolidation,  merger, sale or conveyance, subject to adjustments
which shall be as nearly  equivalent as may be  practicable  to the  adjustments
provided for in this Article  Fifteen (and  assuming such holder of Common Stock
failed to exercise his rights of  election,  if any, as to the kind or amount of
securities,  cash or  other  property  (including  cash)  receivable  upon  such
consolidation,  merger, sale or conveyance (provided that, if the kind or amount
of securities,  cash or other property  (including  cash)  receivable  upon such
consolidation,  merger,  sale or conveyance is not the same for each nonelecting
share, then the kind and amount of securities, cash or other property (including
cash) receivable upon such  consolidation,  merger,  sale or conveyance for each
nonelecting  share shall be deemed to be the kind and amount so  receivable  per
share by a plurality  of the  nonelecting  shares or  securities)).  The Company
shall not enter into any of the transactions referred to in clause (a) or (b) of
the preceding  sentence unless  effective  provision shall be made so as to give
effect to the provisions set forth in this Section 15.04. The provisions of this
Section 15.04 shall apply similarly to successive consolidations, mergers, sales
or conveyances.

                  SECTION 15.05. NOTICE OF ADJUSTMENT. Whenever an adjustment in
the Conversion Price with respect to a series of Securities is required:

                  (1) the Company shall forthwith place on file with the Trustee
         and any  Conversion  Agent for such  Securities  a  certificate  of the
         Treasurer  of  the  Company,  stating  the  adjusted  Conversion  Price
         determined as provided  herein and setting  forth in reasonable  detail
         such facts as shall be  necessary to show the reason for and the manner
         of  computing  such  adjustment,  such  certificate  to  be  conclusive
         evidence that the adjustment is correct; and

                  (2) a  notice  stating  that  the  Conversion  Price  has been
         adjusted  and  setting  forth  the  adjusted   Conversion  Price  shall
         forthwith be mailed, first class postage prepaid, by the Company to the
         Holders of record of such Outstanding Securities.

                  SECTION 15.06. NOTICE IN CERTAIN EVENTS.

                  In case:

                  (1)      of a consolidation or merger to which the Company
         is a party and for which approval of any stockholders of the

                                      -99-
<PAGE>
         company is required,  or of the sale or conveyance to another Person or
         entity  or  group  of  Persons  or  entities  acting  in  concert  as a
         partnership, limited partnership,  syndicate or other group (within the
         meaning of Rule 13d-3 under the Securities Exchange Act of 1934) of all
         or substantially all of the property and assets of the Company; or

                  (2)      of the voluntary or involuntary dissolution,
         liquidation or winding up of the Company; or

                  (3) of any action  triggering an adjustment of the  Conversion
         Price pursuant to this Article Fifteen;

then, in each case, the Company shall cause to be filed with the Trustee and the
Conversion  Agent for the applicable  Securities,  and shall cause to be mailed,
first class postage prepaid, to the Holders of record of applicable  securities,
at least fifteen (15) days prior to the applicable date hereinafter specified, a
notice  stating (x) the date on which a record is to be taken for the purpose of
any distribution or grant of rights or warrants  triggering an adjustment to the
Conversion Price pursuant to this Article Fifteen,  or, if a record is not to be
taken,  the date as of which the holders of record of Common  Stock  entitled to
such distribution,  rights or warrants are to be determined,  or (y) the date on
which   any   reclassification,   consolidation,   merger,   sale,   conveyance,
dissolution,   liquidation  or  winding  up  triggering  an  adjustment  to  the
Conversion  Price  pursuant  to this  Article  Fifteen  is  expected  to  become
effective,  and the date as of which it is expected that holders of Common Stock
of record shall be entitled to exchange  their Common  Stock for  securities  or
other property deliverable upon such  reclassification,  consolidation,  merger,
sale, conveyance, dissolution, liquidation or winding up.

                  Failure to give such  notice or any defect  therein  shall not
affect the legality or validity of the proceedings  described in clause (1), (2)
or (3) of this Section.

                  SECTION  15.07.   COMPANY  TO  RESERVE  STOCK;   REGISTRATION;
LISTING.  (a) The Company  shall at all times reserve and keep  available,  free
from  preemptive  rights,  out of its authorized  but unissued  shares of Common
Stock,  for the purpose of effecting  the  conversion  of the  Securities,  such
number of its duly authorized  shares of Common Stock as shall from time to time
be sufficient to effect the conversion of all applicable  outstanding securities
into  such  Common  Stock  at  any  time  (assuming  that,  at the  time  of the
computation of such number of shares or securities, all such Securities would be
hold by a single holder); provided, however, that nothing contained herein shall
preclude the Company from

                                      -100-
<PAGE>
satisfying  its  obligations  in respect of the  conversion of the Securities by
delivery of  purchased  shares of Common Stock which are held in the treasury of
the Company. The Company shall from time to time, in accordance with the laws of
the State of Delaware,  use its best efforts to cause the  authorized  amount of
the Common Stock to be increased if the  aggregate of the  authorized  amount of
the Common Stock  remaining  unissued and the issued shares of such Common Stock
in its treasury  (other than any such shares  reserved for issuance in any other
connection) shall not be sufficient to permit the conversion of all securities.

                  (b) If any shares of Common Stock which would be issuable upon
conversion of Securities  hereunder require registration with or approval of any
governmental  authority before such shares or securities may be issued upon such
conversion,  the  Company  will in good faith and as  expeditiously  as possible
endeavor to cause such shares or securities  to be duly  registered or approved,
as the case may be. The Company will endeavor to list the shares of Common Stock
required  to be  delivered  upon  conversion  of the  Securities  prior  to such
delivery  upon  the  principal  national  securities  exchange  upon  which  the
outstanding Common Stock is listed at the time of such delivery.

                  SECTION 15.08. TAXES ON CONVERSION.  The Company shall pay any
and all  documentary,  stamp or  similar  issue or  transfer  taxes  that may be
payable  in  respect  of the issue or  delivery  of  shares  of Common  Stock on
conversion of Securities  pursuant hereto.  The Company shall not,  however,  be
required  to pay any such tax which may be payable  in  respect of any  transfer
involved in the issue or delivery of shares of Common Stock or the  portion,  if
any, of the  Securities  which are not so converted in a name other than that in
which the Securities so converted were registered, and no such issue or delivery
shall be made unless and until the Person  requesting such issue has paid to the
Company the amount of such tax or has  established  to the  satisfaction  of the
Company that such tax has been paid.

                  SECTION 15.09. CONVERSION AFTER RECORD DATE. If any Securities
are  surrendered  for  conversion  subsequent  to the record date  preceding  an
Interest  Payment  Date but on or prior to such  Interest  Payment  Date (except
Securities  called for Redemption on a Redemption  Date between such record date
and  Interest  Payment  Date),  the  Holder of such  Securities  at the close of
business on such record date shall be entitled to receive the  interest  payable
on such Securities on such Interest Payment Date  notwithstanding the conversion
thereof. Securities

                                      -101-
<PAGE>
surrendered  for conversion  during the period from the close of business on any
record date next preceding any Interest  Payment Date to the opening of business
on such Interest Payment Date shall (except in the case of Securities which have
been  called  for  Redemption  on a  Redemption  Date  within  such  period)  be
accompanied  by  payment  in New  York  Clearing  House  funds  or  other  funds
acceptable  to the Company of an amount  equal to the  interest  payable on such
Interest Payment Date on the securities being surrendered for conversion. Except
as provided in this  Section  15.09,  no  adjustments  in respect of payments of
interest  on  securities   surrendered   for  conversion  or  any  dividends  or
distributions  or interest on the Common Stock issued upon  conversion  shall be
made upon the conversion of any Securities.

                  SECTION 15.10.  CORPORATE ACTION REGARDING PAR VALUE OF COMMON
STOCK.  Before  taking any action which would cause an  adjustment  reducing the
applicable  Conversion  Price below the then par value (if any) of the shares of
Common Stock  deliverable  upon conversion of the  Securities,  the Company will
take any corporate action which may, in the opinion of its counsel, be necessary
in  order  that the  Company  may  validly  and  legally  issue  fully  paid and
nonassessable shares of Common Stock at such adjusted Conversion Price.

                  SECTION 15.11. COMPANY  DETERMINATION FINAL. Any determination
that the Company or the Board of Directors must make pursuant to this Article is
conclusive.

                  SECTION 15.12.  TRUSTEE'S DISCLAIMER.  The Trustee has no duty
to determine when an adjustment under this Article should be made, how it should
be made or what it should  be. The  Trustee  makes no  representation  as to the
validity  or value  of any  securities  or  assets  issued  upon  conversion  of
Securities.  The Trustee shall not be responsible  for the Company's  failure to
comply with this  Article.  Each  Conversion  Agent other than the Company shall
have the same protection under this Section as the Trustee.

                                      -102-
<PAGE>
                                 ARTICLE SIXTEEN
                    IMMUNITY OF INCORPORATORS, STOCKHOLDERS,
                             OFFICERS AND DIRECTORS

                  SECTION  16.01.  INDENTURE  AND  SECURITIES  SOLELY  CORPORATE
OBLIGATIONS.  No recourse  under or upon any  obligations  covenant or agreement
contained in this Indenture,  or in any covenant or agreement  contained in this
Indenture, or in any Security, or because of any indebtedness evidenced thereby,
shall be had  against  any past,  present or future  incorporator,  stockholder,
officer or director,  as such, of the Company or of any  successor  Corporation,
either directly or through the Company or any successor  corporation,  under any
rule of law,  statute or  constitutional  provision or by the enforcement of any
assessment  or by any  legal or  equitable  proceeding  or  otherwise,  all such
liability  being  expressly  waived  and  released  by  the  acceptance  of  the
Securities by the Holders thereof and as part of the consideration for the issue
of the Securities and coupons.


                                ARTICLE SEVENTEEN
                            MISCELLANEOUS PROVISIONS

                  SECTION 17.01. BENEFITS OF INDENTURE RESTRICTED TO PARTIES AND
SECURITYHOLDERS.  Nothing in this  Indenture  or in the  Securities  or coupons,
expressed or implied,  shall give or be construed to give to any person, firm or
corporation,  other than the parties hereto and their successors and the Holders
of the  Securities  or coupons,  any legal or equitable  right,  remedy or claim
under this Indenture or under any covenant or provision  herein  contained,  all
such covenants and  provisions  being for the sole benefit of the parties hereto
and their successors and of the Holders of the Securities or coupons.

                  SECTION 17.02. PROVISIONS BINDING ON COMPANY'S SUCCESSORS. All
the covenants, stipulations, promises and agreements in this Indenture contained
by or on behalf of the Company shall bind its successors and assigns, whether so
expressed or not.

                  SECTION  17.03.  ADDRESSES  FOR  NOTICES,  ETC.  Any notice or
demand which by any  provision of this  Indenture is required or permitted to be
given or served by the  Trustee  or by the  Holders of  Securities  to or on the
Company may be given or served by being  deposited  postage  prepaid first class
mail in a post office letter box addressed  (until  another  address is filed by
the Company with the Trustee), as follows: Aon Corporation, 123 North

                                      -103-
<PAGE>
Wacker  Drive,  Chicago,  Illinois  60606,  Attention:  Treasurer.  Any  notice,
direction,  request or demand by the Company any  Securityholder  to or upon the
Trustee  shall be  deemed  to have  been  sufficiently  given  or made,  for all
purposes, if given or made in writing at its principal office at 111 East Wacker
Drive, Suite 3000, Chicago, Illinois 60601, Attention: Corporate Trust Services,
or at any other  address  previously  furnished in writing to the Company by the
Trustee.

                  SECTION  17.04.   EVIDENCE  OF  COMPLIANCE   WITH   CONDITIONS
PRECEDENT.  Upon any application or demand by the Company to the Trustee to take
any action under any of the  provisions  of this  Indenture,  the Company  shall
furnish to the Trustee an  Officers'  Certificate  stating  that all  conditions
precedent  provided for in this Indenture  relating to the proposed  action have
been complied with and an Opinion of Counsel stating that in the opinion of such
counsel all such  conditions  precedent have been complied with,  except that in
the case of any such  application  or demand as to which the  furnishing of such
documents is specifically  required by any provision of this Indenture  relating
to such particular  application or demand, no additional  certificate or opinion
need be furnished.

                  Each certificate or opinion provided for in this Indenture and
delivered to the Trustee with respect to compliance with a condition or covenant
provided for in this  Indenture  shall  include (1) a statement  that the person
making such  certificate  or opinion has read such covenant or condition;  (2) a
brief statement as to the nature and scope of the  examination or  investigation
upon which the statements or opinions  contained in such  certificate or opinion
are based; (3) a statement that, in the opinion of such person, he has made such
examination  or  investigation  as is  necessary  to enable  him to  express  an
informed  opinion as to  whether  or not such  covenant  or  condition  has been
complied  with; and (4) a statement as to whether or not, in the opinion of such
person, such condition or covenant has been complied with.

                  SECTION 17.05.  LEGAL HOLIDAYS.  In any case where the date of
maturity of any interest,  premium or Additional  Amounts on or principal of the
Securities  or the date fixed for  Redemption of any  Securities  shall not be a
Business Day in a city where payment  thereof is to be made, then payment of any
interest,  premium or Additional  Amounts on, or principal  of, such  Securities
need  not be made  on  such  date  in  such  city  but  may be made on the  next
succeeding Business Day with the same force and effect as if made on the date of
maturity or the date fixed for

                                      -104-
<PAGE>
Redemption, and no interest shall accrue for the period after such date.

                  SECTION 17.06.  TRUST INDENTURE ACT TO CONTROL.  If and to the
extent that any provision of this Indenture limits,  qualifies or conflicts with
another provision included in this Indenture which is required to be included in
this Indenture by any of Sections 310 to 317, inclusive,  of the Trust Indenture
Act of 1939, such required provision shall control.

                  SECTION 17.07.  EXECUTION IN COUNTERPARTS.  This Indenture may
be executed in any number of  counterparts,  each of which shall be an original;
but such counterparts shall together constitute but one and the same instrument.

                  SECTION  17.08.  ILLINOIS  CONTRACT.  This  Indenture and each
Security  shall be deemed to be a  contract  made under the laws of the State of
Illinois,  and for all purposes shall be governed by and construed in accordance
with the laws of said State.

                                      -105-
<PAGE>
                  IN WITNESS WHEREOF,  Aon  Corporation,  the party of the first
part, has caused this Indenture to be signed and acknowledged by its Chairman of
the Board or its President or one of its Executive Vice Presidents or one of its
Vice Presidents or its Treasurer, and its Corporate seal to be affixed hereunto,
and the same to be  attested by its  Corporate  Secretary;  and U.S.  Bank Trust
National Association, the party of the second part, has caused this Indenture to
be signed and  acknowledged by one of its Vice Presidents and its corporate seal
to be affixed  hereunto,  and the same to be  attested  by its  Secretary  or an
Assistant Secretary or an authorized  officer,  all as of the day and year first
above written.

                                             Aon Corporation
[Corporate Seal]
                                             By:     ________________________
                                                     Harvey N. Medvin
                                                     Executive Vice President
                                                     and Chief Financial Officer

Attest:


__________________________



                                             By:      __________________________
                                                      [Name]
                                                      [Title]

Attest:




__________________________
Assistant Secretary


                                      -106-
<PAGE>
STATE OF ILLINOIS                   )
                             )SS:
COUNTY OF COOK               )

                  On   the   ________________________________________   day   of
_________________________,________      before      me      personally      came
________________________,  to me known,  who, being by me duly sworn, did depose
and   say   that   he   resides   at    _______________,    that   he   is   the
________________________ of ________________________,  one of the [corporations]
described in and which executed the foregoing instrument; that he knows the seal
of said corporation;  that the seal affixed to said instrument is such Corporate
seal;  that it was so affixed by  authority  of the Board of  Directors  of said
Corporation, and that he signed his name thereto by like authority.



                            _____________________________________
                                  Notary Public



                                     -107-

                                                                       Exhibit 5

   May 18, 1999
   
   
   Aon Corporation
   123 North Wacker Drive
   Chicago, Illinois  60660

               Re:   $500,000,000 of Debt Securities, Preferred Stock and 
                     ----------------------------------------------------
                     Common Stock
                     ------------

   Ladies and Gentlemen:

               I am Senior  Counsel and Assistant  Secretary of Aon  Corporation
   (the  "Company").  I refer  to the  Registration  Statement  on Form S-3 (the
   "Registration Statement") being filed by the Company, with the Securities and
   Exchange  Commission (the "SEC") under the Securities Act of 1933, as amended
   (the "Securities Act"), relating to the shelf registration of $500,000,000 of
   the Company's debt securities (the "Debt  Securities"),  preferred stock, par
   value $1.00 per share  ("Preferred  Stock") and common stock, par value $1.00
   per share  ("Common  Stock").  The Debt  Securities are to be issued under an
   Indenture  dated as of September 15, 1992 between the Company and The Bank of
   New York, as successor trustee (the "Senior Debt Indenture") and an Indenture
   to be dated as of a date  before  the first  issuance  of  subordinated  debt
   securities  between us and U.S. Bank Trust National  Association,  as trustee
   (the  "Subordinated  Debt  Indenture"  and  together  with  the  Senior  Debt
   Indenture, the "Indentures").  The Preferred Stock will be issued pursuant to
   a Certificate  of  Designation  relating to a particular  series of Preferred
   Stock.

               I am familiar  with the  proceedings  to date with respect to the
   proposed  issuance and sale of the Debt  Securities,  the Preferred Stock and
   the Common Stock and have examined  such records,  documents and questions of
   law, and satisfied  myself as to such matters of fact,  as I have  considered
   relevant and necessary as a basis for this opinion.

               In rendering  the opinions  expressed  below,  I have assumed the
   authenticity of all documents submitted to me as originals and the conformity
   to the originals of all documents  submitted to me as copies. In addition,  I
   have assumed and have not verified the accuracy as to factual matters of each
   document I reviewed.

               Based on the foregoing, I am of the opinion that:

         1. The Company is duly incorporated and validly existing under the laws
   of the State of Delaware.

         2. The Company has corporate  power and authority to authorize and sell
   the Debt Securities, the Preferred Stock and the Common Stock.

         3. Each series of Debt  Securities  will be legally  issued and binding
   obligations  of the  Company  (except  to the  extent  enforceability  may be
   limited by applicable  bankruptcy,  insolvency,  reorganization,  moratorium,
   fraudulent  transfer or other  similar  laws  affecting  the  enforcement  of
   creditors'  rights  generally  and by the  effect of  general  principles  of
   equity, regardless of whether enforceability is considered in a proceeding in
   equity or at law) when (i) the  Registration  Statement,  as finally  amended
   (including  any  necessary  post-effective  amendments),  shall  have  become
   effective  under  the  Securities  Act  and  the  Indentures  (including  any
   necessary supplemental  indentures) shall have been qualified under the Trust
   Indenture Act of 1939, as amended;  (ii) a Prospectus Supplement with respect
   to such series of Debt Securities shall have been filed with the SEC pursuant
   to Rule 424 under the Securities  Act; (iii) the Company's board of directors
   or a  duly  authorized  committee  thereof  shall  have  duly  adopted  final
   resolutions  authorizing  the  issuance  and  sale  of  such  series  of Debt
   Securities as contemplated by the Registration  Statement and the Indentures;
   (iv) such  series of Debt  


<PAGE>
   Securities shall have been duly executed and authenticated as provided in the
   Indentures  and such  resolutions  and shall have been duly  delivered to the
   purchasers thereof against payment of the agreed consideration  therefor; (v)
   any consents  required pursuant to the Company's credit facilities shall have
   been obtained;  and (vi) in the case of any Debt Securities  issued under the
   Subordinated Debt Indenture, such Subordinated Debt Indenture shall have been
   duly  executed  and  delivered  by the Company and U.S.  Bank Trust  National
   Association, as trustee.

         4. Each series of Preferred  Stock will be validly  issued,  fully paid
   and  nonassessable  when (i) the Registration  Statement,  as finally amended
   (including  any  necessary  post-effective  amendments),  shall  have  become
   effective under the Securities Act; (ii) a Prospectus Supplement with respect
   to the sale of such series of Preferred  Stock shall have been filed with the
   SEC pursuant to Rule 424 under the Securities  Act; (iii) the Company's board
   of directors or a duly authorized  committee  thereof shall have duly adopted
   resolutions  specifying  the terms and conditions of such series of Preferred
   Stock and  authorizing  its issuance;  (iv) the Company shall have filed with
   the Delaware  Secretary of State a certificate of designation with respect to
   such series of Preferred Stock; and (v) certificates representing such series
   of  Preferred   Stock  shall  have  been  duly  executed,  countersigned  and
   registered  and  duly  delivered to the  purchasers thereof  against  payment
   therefor in the manner described in the Registration Statement.

         5. The shares of Common  Stock will be validly  issued,  fully paid and
   nonassessable  when:  (i) the  Registration  Statement,  as  finally  amended
   (including  any  necessary  post-effective  amendments),  shall  have  become
   effective under the Securities Act; (ii) a Prospectus Supplement with respect
   to the sale of such Common Stock shall have been filed with the  SEC pursuant
   to Rule 424 under the Securities  Act; (iii) the Company's board of directors
   or a  duly  authorized  committee  thereof  shall  have  duly  adopted  final
   resolutions  authorizing  the  issuance  and  sale  of  the Common Stock; and
   (iv)  certificates  representing  the  Common  Stock  shall  have  been  duly
   executed,  countersigned  and registered and duly delivered to the purchasers
   thereof against payment  therefor in the manner described in the Registration
   Statement.

               This opinion letter is limited to the General  Corporation Law of
   the State of Delaware, the laws of the State of Illinois and the federal laws
   of the United States of America.

               For the purposes of this opinion letter,  I have assumed that, at
   the time of the issuance, sale and delivery of each series of Debt Securities
   and Preferred  Stock and each issue of Common Stock,  as the case may be: (i)
   the  authorization  thereof by the  Company  will not have been  modified  or
   rescinded,  and there will not have  occurred any change in law affecting the
   validity,  legally binding character or enforceability  thereof;  (ii) in the
   case of the Debt  Securities,  the Indentures  will not have been modified or
   amended;  (iii) in the case of the issue of any series of Preferred  Stock or
   the issue of Common Stock,  the terms and conditions of such Preferred  Stock
   or Common Stock, as the case may be, will be as expressly contemplated by the
   Registration   Statement;   and  (iv)  the  Second  Restated  Certificate  of
   Incorporation,  as amended,  and the By-Laws of the Company,  as currently in
   effect,  will not have been modified or amended and will be in full force and
   effect.

               I do not  find it  necessary  for the  purposes  of this  opinion
   letter to cover,  and accordingly I express no opinion as to, the application
   of the  securities or blue sky laws of the various  states or the District of
   Columbia to sales of the Debt  Securities,  the Preferred Stock or the Common
   Stock.

               I hereby  consent  to the  filing  of this  opinion  letter as an
   Exhibit to the  Registration  Statement



<PAGE>
   and to all references to me under the caption "Validity of Securities" in the
   Prospectus  forming a part of the  Registration  Statement.  In  giving  such
   consent,  I do not  thereby  admit that I am within the  category  of persons
   whose consent is required by Section 7 of the  Securities  Act or the related
   rules and regulations promulgated by the SEC.

                                          Very truly yours,

                                          /s/ Jerome S. Hanner



                                                                   Exhibit 23(b)


                 CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS


   We consent to the  reference  to our firm under the caption  "Experts" in the
   Registration  Statement (Form S-3 ) and related Prospectus of Aon Corporation
   for the registration of $500,000,000 of debt securities,  preferred stock and
   common stock and to the  incorporation  by  reference  therein of our reports
   dated February 9, 1999 (except for Note 5 to Schedule I, as to which the date
   is March 19, 1999), with respect to the consolidated  financial statements of
   Aon  Corporation  incorporated  by reference in its Annual Report (Form 10-K)
   for the year ended  December  31,  1998 and the related  financial  statement
   schedules   included   therein,   filed  with  the  Securities  and  Exchange
   Commission.




                                         /s/  ERNST & YOUNG LLP



   Chicago, Illinois
   May 17, 1999


                                                                   Exhibit 23(c)



Board of Directors and Stockholders
Aon Corporation

We are aware of the  incorporation  by reference in the  Registration  Statement
(Form S-3) and related  prospectus of Aon  Corporation  for the  registration of
$500,000,000 of debt securities,  preferred stock and common stock of our report
dated May 4, 1999  relating  to the  unaudited  condensed  consolidated  interim
financial  statements of Aon Corporation  that are included in its Form 10-Q for
the quarter ended March 31, 1999.



                                         /s/  ERNST & YOUNG LLP

May 17, 1999



<PAGE>
                                                                      Exhibit 24


                                  POWER OF ATTORNEY
                                  -----------------

              KNOW ALL MEN BY THESE  PRESENTS,  that the person whose  signature
   appears below  constitutes and appoints Patrick G. Ryan, Harvey N. Medvin and
   Raymond I.  Skilling,  and each of them,  with full power to act  without the
   others,  his true and  lawful  attorneys-in-fact  and  agents,  with full and
   several power of  substitution  and  resubstitution  for him and in his name,
   place and stead, in any and all capacities,  to sign a registration statement
   on Form S-3 relating to the  registration  by Aon  Corporation  of up to $500
   million principal amount of debt securities, preferred stock and common stock
   and any and all  amendments  (including  post-effective  amendments)  to such
   registration statement,  and to file the same, with all exhibits thereto, and
   other  documents in connection  therewith,  with the  Securities and Exchange
   Commission,  and any documents  relating to the qualification or registration
   under state Blue Sky or  securities  laws of such  securities,  granting unto
   such attorneys-in-fact and agents, and each of them, full power and authority
   to do and perform  each and every act and thing  requisite or necessary to be
   done in and about the premises, as fully to all intents and purposes he might
   or could  do in  person,  hereby  ratifying  and  confirming  all  that  said
   attorneys-in-fact  and agents or any of them,  or their or his  substitute or
   substitutes, may lawfully do or cause to be done by virtue hereof.

              IN WITNESS WHEREOF,  the undersigned has signed his name this 16th
   day of April, 1999.

                                             /s/ PATRICK G. RYAN   
                                             -------------------
                                             Patrick G. Ryan


<PAGE>
                                  POWER OF ATTORNEY
                                  -----------------

              KNOW ALL MEN BY THESE  PRESENTS,  that the person whose  signature
   appears below  constitutes and appoints Patrick G. Ryan, Harvey N. Medvin and
   Raymond I.  Skilling,  and each of them,  with full power to act  without the
   others,  his true and  lawful  attorneys-in-fact  and  agents,  with full and
   several power of  substitution  and  resubstitution  for him and in his name,
   place and stead, in any and all capacities,  to sign a registration statement
   on Form S-3 relating to the  registration  by Aon  Corporation  of up to $500
   million principal amount of debt securities, preferred stock and common stock
   and any and all  amendments  (including  post-effective  amendments)  to such
   registration statement,  and to file the same, with all exhibits thereto, and
   other  documents in connection  therewith,  with the  Securities and Exchange
   Commission,  and any documents  relating to the qualification or registration
   under state Blue Sky or  securities  laws of such  securities,  granting unto
   such attorneys-in-fact and agents, and each of them, full power and authority
   to do and perform  each and every act and thing  requisite or necessary to be
   done in and about the premises, as fully to all intents and purposes he might
   or could  do in  person,  hereby  ratifying  and  confirming  all  that  said
   attorneys-in-fact  and agents or any of them,  or their or his  substitute or
   substitutes, may lawfully do or cause to be done by virtue hereof.

              IN WITNESS WHEREOF,  the undersigned has signed his name this 16th
   day of April, 1999.

                                             /s/ DANIEL T. CARROLL   
                                             ----------------------
                                             Daniel T. Carroll


<PAGE>
                                  POWER OF ATTORNEY
                                  -----------------

              KNOW ALL MEN BY THESE  PRESENTS,  that the person whose  signature
   appears below  constitutes and appoints Patrick G. Ryan, Harvey N. Medvin and
   Raymond I.  Skilling,  and each of them,  with full power to act  without the
   others,  his true and  lawful  attorneys-in-fact  and  agents,  with full and
   several power of  substitution  and  resubstitution  for him and in his name,
   place and stead, in any and all capacities,  to sign a registration statement
   on Form S-3 relating to the  registration  by Aon  Corporation  of up to $500
   million principal amount of debt securities, preferred stock and common stock
   and any and all  amendments  (including  post-effective  amendments)  to such
   registration statement,  and to file the same, with all exhibits thereto, and
   other  documents in connection  therewith,  with the  Securities and Exchange
   Commission,  and any documents  relating to the qualification or registration
   under state Blue Sky or  securities  laws of such  securities,  granting unto
   such attorneys-in-fact and agents, and each of them, full power and authority
   to do and perform  each and every act and thing  requisite or necessary to be
   done in and about the premises, as fully to all intents and purposes he might
   or could  do in  person,  hereby  ratifying  and  confirming  all  that  said
   attorneys-in-fact  and agents or any of them,  or their or his  substitute or
   substitutes, may lawfully do or cause to be done by virtue hereof.

              IN WITNESS WHEREOF,  the undersigned has signed his name this 16th
   day of April, 1999.

                                             /s/ FRANKLIN A. COLE
                                             ---------------------
                                             Franklin A. Cole

<PAGE>
                                  POWER OF ATTORNEY
                                  -----------------

              KNOW ALL MEN BY THESE  PRESENTS,  that the person whose  signature
   appears below  constitutes and appoints Patrick G. Ryan, Harvey N. Medvin and
   Raymond I.  Skilling,  and each of them,  with full power to act  without the
   others,  his true and  lawful  attorneys-in-fact  and  agents,  with full and
   several power of  substitution  and  resubstitution  for him and in his name,
   place and stead, in any and all capacities,  to sign a registration statement
   on Form S-3 relating to the  registration  by Aon  Corporation  of up to $500
   million principal amount of debt securities, preferred stock and common stock
   and any and all  amendments  (including  post-effective  amendments)  to such
   registration statement,  and to file the same, with all exhibits thereto, and
   other  documents in connection  therewith,  with the  Securities and Exchange
   Commission,  and any documents  relating to the qualification or registration
   under state Blue Sky or  securities  laws of such  securities,  granting unto
   such attorneys-in-fact and agents, and each of them, full power and authority
   to do and perform  each and every act and thing  requisite or necessary to be
   done in and about the premises, as fully to all intents and purposes he might
   or could  do in  person,  hereby  ratifying  and  confirming  all  that  said
   attorneys-in-fact  and agents or any of them,  or their or his  substitute or
   substitutes, may lawfully do or cause to be done by virtue hereof.

              IN WITNESS WHEREOF,  the undersigned has signed his name this 16th
   day of April, 1999.

                                             /s/ EDGAR D. JANNOTTA       
                                             ---------------------
                                             Edgar D. Jannotta


<PAGE>
                                  POWER OF ATTORNEY
                                  -----------------

              KNOW ALL MEN BY THESE  PRESENTS,  that the person whose  signature
   appears below  constitutes and appoints Patrick G. Ryan, Harvey N. Medvin and
   Raymond I.  Skilling,  and each of them,  with full power to act  without the
   others,  his true and  lawful  attorneys-in-fact  and  agents,  with full and
   several power of  substitution  and  resubstitution  for him and in his name,
   place and stead, in any and all capacities,  to sign a registration statement
   on Form S-3 relating to the  registration  by Aon  Corporation  of up to $500
   million principal amount of debt securities, preferred stock and common stock
   and any and all  amendments  (including  post-effective  amendments)  to such
   registration statement,  and to file the same, with all exhibits thereto, and
   other  documents in connection  therewith,  with the  Securities and Exchange
   Commission,  and any documents  relating to the qualification or registration
   under state Blue Sky or  securities  laws of such  securities,  granting unto
   such attorneys-in-fact and agents, and each of them, full power and authority
   to do and perform  each and every act and thing  requisite or necessary to be
   done in and about the premises, as fully to all intents and purposes he might
   or could  do in  person,  hereby  ratifying  and  confirming  all  that  said
   attorneys-in-fact  and agents or any of them,  or their or his  substitute or
   substitutes, may lawfully do or cause to be done by virtue hereof.

              IN WITNESS WHEREOF,  the undersigned has signed his name this 16th
   day of April, 1999.

                                             /s/ LESTER B. KNIGHT            
                                             ---------------------
                                             Lester B. Knight

<PAGE>
                                  POWER OF ATTORNEY
                                  -----------------

              KNOW ALL MEN BY THESE  PRESENTS,  that the person whose  signature
   appears below  constitutes and appoints Patrick G. Ryan, Harvey N. Medvin and
   Raymond I.  Skilling,  and each of them,  with full power to act  without the
   others,  his true and  lawful  attorneys-in-fact  and  agents,  with full and
   several power of  substitution  and  resubstitution  for him and in his name,
   place and stead, in any and all capacities,  to sign a registration statement
   on Form S-3 relating to the  registration  by Aon  Corporation  of up to $500
   million principal amount of debt securities, preferred stock and common stock
   and any and all  amendments  (including  post-effective  amendments)  to such
   registration statement,  and to file the same, with all exhibits thereto, and
   other  documents in connection  therewith,  with the  Securities and Exchange
   Commission,  and any documents  relating to the qualification or registration
   under state Blue Sky or  securities  laws of such  securities,  granting unto
   such attorneys-in-fact and agents, and each of them, full power and authority
   to do and perform  each and every act and thing  requisite or necessary to be
   done in and about the premises, as fully to all intents and purposes he might
   or could  do in  person,  hereby  ratifying  and  confirming  all  that  said
   attorneys-in-fact  and agents or any of them,  or their or his  substitute or
   substitutes, may lawfully do or cause to be done by virtue hereof.

              IN WITNESS WHEREOF,  the undersigned has signed his name this 16th
   day of April, 1999.

                                               /s/ PERRY J. LEWIS
                                               -------------------
                                               Perry J. Lewis

<PAGE>
                                  POWER OF ATTORNEY
                                  -----------------

              KNOW ALL MEN BY THESE  PRESENTS,  that the person whose  signature
   appears below  constitutes and appoints Patrick G. Ryan, Harvey N. Medvin and
   Raymond I.  Skilling,  and each of them,  with full power to act  without the
   others,  his true and  lawful  attorneys-in-fact  and  agents,  with full and
   several power of  substitution  and  resubstitution  for him and in his name,
   place and stead, in any and all capacities,  to sign a registration statement
   on Form S-3 relating to the  registration  by Aon  Corporation  of up to $500
   million principal amount of debt securities, preferred stock and common stock
   and any and all  amendments  (including  post-effective  amendments)  to such
   registration statement,  and to file the same, with all exhibits thereto, and
   other  documents in connection  therewith,  with the  Securities and Exchange
   Commission,  and any documents  relating to the qualification or registration
   under state Blue Sky or  securities  laws of such  securities,  granting unto
   such attorneys-in-fact and agents, and each of them, full power and authority
   to do and perform  each and every act and thing  requisite or necessary to be
   done in and about the premises, as fully to all intents and purposes he might
   or could  do in  person,  hereby  ratifying  and  confirming  all  that  said
   attorneys-in-fact  and agents or any of them,  or their or his  substitute or
   substitutes, may lawfully do or cause to be done by virtue hereof.

              IN WITNESS WHEREOF,  the undersigned has signed his name this 16th
   day of April, 1999.

                                             /s/ ANDREW J. McKENNA         
                                             ---------------------
                                             Andrew J. McKenna



<PAGE>
                                  POWER OF ATTORNEY
                                  -----------------

              KNOW ALL MEN BY THESE  PRESENTS,  that the person whose  signature
   appears below  constitutes and appoints Patrick G. Ryan, Harvey N. Medvin and
   Raymond I.  Skilling,  and each of them,  with full power to act  without the
   others,  his true and  lawful  attorneys-in-fact  and  agents,  with full and
   several power of  substitution  and  resubstitution  for him and in his name,
   place and stead, in any and all capacities,  to sign a registration statement
   on Form S-3 relating to the  registration  by Aon  Corporation  of up to $500
   million principal amount of debt securities, preferred stock and common stock
   and any and all  amendments  (including  post-effective  amendments)  to such
   registration statement,  and to file the same, with all exhibits thereto, and
   other  documents in connection  therewith,  with the  Securities and Exchange
   Commission,  and any documents  relating to the qualification or registration
   under state Blue Sky or  securities  laws of such  securities,  granting unto
   such attorneys-in-fact and agents, and each of them, full power and authority
   to do and perform  each and every act and thing  requisite or necessary to be
   done in and about the premises, as fully to all intents and purposes he might
   or could  do in  person,  hereby  ratifying  and  confirming  all  that  said
   attorneys-in-fact  and agents or any of them,  or their or his  substitute or
   substitutes, may lawfully do or cause to be done by virtue hereof.

              IN WITNESS WHEREOF,  the undersigned has signed his name this 16th
   day of April, 1999.

                                              /s/ NEWTON N. MINOW          
                                              ---------------------
                                              Newton N. Minow

<PAGE>
                                  POWER OF ATTORNEY
                                  -----------------

              KNOW ALL MEN BY THESE  PRESENTS,  that the person whose  signature
   appears below  constitutes and appoints Patrick G. Ryan, Harvey N. Medvin and
   Raymond I.  Skilling,  and each of them,  with full power to act  without the
   others,  his true and  lawful  attorneys-in-fact  and  agents,  with full and
   several power of  substitution  and  resubstitution  for him and in his name,
   place and stead, in any and all capacities,  to sign a registration statement
   on Form S-3 relating to the  registration  by Aon  Corporation  of up to $500
   million principal amount of debt securities, preferred stock and common stock
   and any and all  amendments  (including  post-effective  amendments)  to such
   registration statement,  and to file the same, with all exhibits thereto, and
   other  documents in connection  therewith,  with the  Securities and Exchange
   Commission,  and any documents  relating to the qualification or registration
   under state Blue Sky or  securities  laws of such  securities,  granting unto
   such attorneys-in-fact and agents, and each of them, full power and authority
   to do and perform  each and every act and thing  requisite or necessary to be
   done in and about the premises, as fully to all intents and purposes he might
   or could  do in  person,  hereby  ratifying  and  confirming  all  that  said
   attorneys-in-fact  and agents or any of them,  or their or his  substitute or
   substitutes, may lawfully do or cause to be done by virtue hereof.

              IN WITNESS WHEREOF,  the undersigned has signed his name this 16th
   day of April, 1999.

                                              /s/ RICHARD C. NOTEBAERT   
                                              -------------------------
                                              Richard C. Notebaert

<PAGE>
                                  POWER OF ATTORNEY
                                  -----------------

              KNOW ALL MEN BY THESE  PRESENTS,  that the person whose  signature
   appears below  constitutes and appoints Patrick G. Ryan, Harvey N. Medvin and
   Raymond I.  Skilling,  and each of them,  with full power to act  without the
   others,  his true and  lawful  attorneys-in-fact  and  agents,  with full and
   several power of  substitution  and  resubstitution  for him and in his name,
   place and stead, in any and all capacities,  to sign a registration statement
   on Form S-3 relating to the  registration  by Aon  Corporation  of up to $500
   million principal amount of debt securities, preferred stock and common stock
   and any and all  amendments  (including  post-effective  amendments)  to such
   registration statement,  and to file the same, with all exhibits thereto, and
   other  documents in connection  therewith,  with the  Securities and Exchange
   Commission,  and any documents  relating to the qualification or registration
   under state Blue Sky or  securities  laws of such  securities,  granting unto
   such attorneys-in-fact and agents, and each of them, full power and authority
   to do and perform  each and every act and thing  requisite or necessary to be
   done in and about the premises, as fully to all intents and purposes he might
   or could  do in  person,  hereby  ratifying  and  confirming  all  that  said
   attorneys-in-fact  and agents or any of them,  or their or his  substitute or
   substitutes, may lawfully do or cause to be done by virtue hereof.

              IN WITNESS WHEREOF,  the undersigned has signed his name this 16th
   day of April, 1999.

                                             /s/ MICHAEL D. O'HALLERAN 
                                             --------------------------
                                             Michael D. O'Halleran

<PAGE>
                                  POWER OF ATTORNEY
                                  -----------------

              KNOW ALL MEN BY THESE  PRESENTS,  that the person whose  signature
   appears below  constitutes and appoints Patrick G. Ryan, Harvey N. Medvin and
   Raymond I.  Skilling,  and each of them,  with full power to act  without the
   others,  his true and  lawful  attorneys-in-fact  and  agents,  with full and
   several power of  substitution  and  resubstitution  for him and in his name,
   place and stead, in any and all capacities,  to sign a registration statement
   on Form S-3 relating to the  registration  by Aon  Corporation  of up to $500
   million principal amount of debt securities, preferred stock and common stock
   and any and all  amendments  (including  post-effective  amendments)  to such
   registration statement,  and to file the same, with all exhibits thereto, and
   other  documents in connection  therewith,  with the  Securities and Exchange
   Commission,  and any documents  relating to the qualification or registration
   under state Blue Sky or  securities  laws of such  securities,  granting unto
   such attorneys-in-fact and agents, and each of them, full power and authority
   to do and perform  each and every act and thing  requisite or necessary to be
   done in and about the premises, as fully to all intents and purposes he might
   or could  do in  person,  hereby  ratifying  and  confirming  all  that  said
   attorneys-in-fact  and agents or any of them,  or their or his  substitute or
   substitutes, may lawfully do or cause to be done by virtue hereof.

              IN WITNESS WHEREOF,  the undersigned has signed his name this 16th
   day of April, 1999.

                                              /s/ DONALD S. PERKINS          
                                              ---------------------
                                              Donald S. Perkins

<PAGE>
                                  POWER OF ATTORNEY
                                  -----------------

              KNOW ALL MEN BY THESE  PRESENTS,  that the person whose  signature
   appears below  constitutes and appoints Patrick G. Ryan, Harvey N. Medvin and
   Raymond I.  Skilling,  and each of them,  with full power to act  without the
   others,  his true and  lawful  attorneys-in-fact  and  agents,  with full and
   several power of  substitution  and  resubstitution  for him and in his name,
   place and stead, in any and all capacities,  to sign a registration statement
   on Form S-3 relating to the  registration  by Aon  Corporation  of up to $500
   million principal amount of debt securities, preferred stock and common stock
   and any and all  amendments  (including  post-effective  amendments)  to such
   registration statement,  and to file the same, with all exhibits thereto, and
   other  documents in connection  therewith,  with the  Securities and Exchange
   Commission,  and any documents  relating to the qualification or registration
   under state Blue Sky or  securities  laws of such  securities,  granting unto
   such attorneys-in-fact and agents, and each of them, full power and authority
   to do and perform  each and every act and thing  requisite or necessary to be
   done in and about the premises, as fully to all intents and purposes he might
   or could  do in  person,  hereby  ratifying  and  confirming  all  that  said
   attorneys-in-fact  and agents or any of them,  or their or his  substitute or
   substitutes, may lawfully do or cause to be done by virtue hereof.

              IN WITNESS WHEREOF,  the undersigned has signed his name this 16th
   day of April, 1999.

                                             /s/ JOHN W. ROGERS, JR.         
                                             -----------------------
                                             John W. Rogers, Jr.
<PAGE>
                                  POWER OF ATTORNEY
                                  -----------------

              KNOW ALL MEN BY THESE  PRESENTS,  that the person whose  signature
   appears below  constitutes and appoints Patrick G. Ryan, Harvey N. Medvin and
   Raymond I.  Skilling,  and each of them,  with full power to act  without the
   others,  his true and  lawful  attorneys-in-fact  and  agents,  with full and
   several power of  substitution  and  resubstitution  for him and in his name,
   place and stead, in any and all capacities,  to sign a registration statement
   on Form S-3 relating to the  registration  by Aon  Corporation  of up to $500
   million principal amount of debt securities, preferred stock and common stock
   and any and all  amendments  (including  post-effective  amendments)  to such
   registration statement,  and to file the same, with all exhibits thereto, and
   other  documents in connection  therewith,  with the  Securities and Exchange
   Commission,  and any documents  relating to the qualification or registration
   under state Blue Sky or  securities  laws of such  securities,  granting unto
   such attorneys-in-fact and agents, and each of them, full power and authority
   to do and perform  each and every act and thing  requisite or necessary to be
   done in and about the premises, as fully to all intents and purposes he might
   or could  do in  person,  hereby  ratifying  and  confirming  all  that  said
   attorneys-in-fact  and agents or any of them,  or their or his  substitute or
   substitutes, may lawfully do or cause to be done by virtue hereof.

              IN WITNESS WHEREOF,  the undersigned has signed his name this 16th
   day of April, 1999.

                                             /s/ GEORGE A. SCHAEFER       
                                             -----------------------
                                             George A. Schaefer
<PAGE>
                                  POWER OF ATTORNEY
                                  -----------------

              KNOW ALL MEN BY THESE  PRESENTS,  that the person whose  signature
   appears below  constitutes and appoints Patrick G. Ryan, Harvey N. Medvin and
   Raymond I.  Skilling,  and each of them,  with full power to act  without the
   others,  his true and  lawful  attorneys-in-fact  and  agents,  with full and
   several power of  substitution  and  resubstitution  for him and in his name,
   place and stead, in any and all capacities,  to sign a registration statement
   on Form S-3 relating to the  registration  by Aon  Corporation  of up to $500
   million principal amount of debt securities, preferred stock and common stock
   and any and all  amendments  (including  post-effective  amendments)  to such
   registration statement,  and to file the same, with all exhibits thereto, and
   other  documents in connection  therewith,  with the  Securities and Exchange
   Commission,  and any documents  relating to the qualification or registration
   under state Blue Sky or  securities  laws of such  securities,  granting unto
   such attorneys-in-fact and agents, and each of them, full power and authority
   to do and perform  each and every act and thing  requisite or necessary to be
   done in and about the premises, as fully to all intents and purposes he might
   or could  do in  person,  hereby  ratifying  and  confirming  all  that  said
   attorneys-in-fact  and agents or any of them,  or their or his  substitute or
   substitutes, may lawfully do or cause to be done by virtue hereof.

              IN WITNESS WHEREOF,  the undersigned has signed his name this 16th
   day of April, 1999.

                                                /s/ FRED L. TURNER
                                                -------------------
                                                Fred L. Turner

<PAGE>
                                  POWER OF ATTORNEY
                                  -----------------

              KNOW ALL MEN BY THESE  PRESENTS,  that the person whose  signature
   appears below  constitutes and appoints Patrick G. Ryan, Harvey N. Medvin and
   Raymond I.  Skilling,  and each of them,  with full power to act  without the
   others,  his true and  lawful  attorneys-in-fact  and  agents,  with full and
   several power of  substitution  and  resubstitution  for him and in his name,
   place and stead, in any and all capacities,  to sign a registration statement
   on Form S-3 relating to the  registration  by Aon  Corporation  of up to $500
   million principal amount of debt securities, preferred stock and common stock
   and any and all  amendments  (including  post-effective  amendments)  to such
   registration statement,  and to file the same, with all exhibits thereto, and
   other  documents in connection  therewith,  with the  Securities and Exchange
   Commission,  and any documents  relating to the qualification or registration
   under state Blue Sky or  securities  laws of such  securities,  granting unto
   such attorneys-in-fact and agents, and each of them, full power and authority
   to do and perform  each and every act and thing  requisite or necessary to be
   done in and about the premises, as fully to all intents and purposes he might
   or could  do in  person,  hereby  ratifying  and  confirming  all  that  said
   attorneys-in-fact  and agents or any of them,  or their or his  substitute or
   substitutes, may lawfully do or cause to be done by virtue hereof.

              IN WITNESS WHEREOF,  the undersigned has signed his name this 16th
   day of April, 1999.

                                             /s/ ARNOLD R. WEBER             
                                             --------------------
                                             Arnold R. Weber

<PAGE>
                                  POWER OF ATTORNEY
                                  -----------------

              KNOW ALL MEN BY THESE  PRESENTS,  that the person whose  signature
   appears below  constitutes and appoints Patrick G. Ryan, Harvey N. Medvin and
   Raymond I.  Skilling,  and each of them,  with full power to act  without the
   others,  his true and  lawful  attorneys-in-fact  and  agents,  with full and
   several power of  substitution  and  resubstitution  for him and in his name,
   place and stead, in any and all capacities,  to sign a registration statement
   on Form S-3 relating to the  registration  by Aon  Corporation  of up to $500
   million principal amount of debt securities, preferred stock and common stock
   and any and all  amendments  (including  post-effective  amendments)  to such
   registration statement,  and to file the same, with all exhibits thereto, and
   other  documents in connection  therewith,  with the  Securities and Exchange
   Commission,  and any documents  relating to the qualification or registration
   under state Blue Sky or  securities  laws of such  securities,  granting unto
   such attorneys-in-fact and agents, and each of them, full power and authority
   to do and perform  each and every act and thing  requisite or necessary to be
   done in and about the premises, as fully to all intents and purposes he might
   or could  do in  person,  hereby  ratifying  and  confirming  all  that  said
   attorneys-in-fact  and agents or any of them,  or their or his  substitute or
   substitutes, may lawfully do or cause to be done by virtue hereof.

              IN WITNESS WHEREOF,  the undersigned has signed his name this 16th
   day of April, 1999.

                                             /s/ CAROLYN Y. WOO              
                                             --------------------
                                             Carolyn Y. Woo
<PAGE>
                                  POWER OF ATTORNEY
                                  -----------------

              KNOW ALL MEN BY THESE  PRESENTS,  that the person whose  signature
   appears below  constitutes and appoints Patrick G. Ryan, Harvey N. Medvin and
   Raymond I.  Skilling,  and each of them,  with full power to act  without the
   others,  his true and  lawful  attorneys-in-fact  and  agents,  with full and
   several power of  substitution  and  resubstitution  for him and in his name,
   place and stead, in any and all capacities,  to sign a registration statement
   on Form S-3 relating to the  registration  by Aon  Corporation  of up to $500
   million principal amount of debt securities, preferred stock and common stock
   and any and all  amendments  (including  post-effective  amendments)  to such
   registration statement,  and to file the same, with all exhibits thereto, and
   other  documents in connection  therewith,  with the  Securities and Exchange
   Commission,  and any documents  relating to the qualification or registration
   under state Blue Sky or  securities  laws of such  securities,  granting unto
   such attorneys-in-fact and agents, and each of them, full power and authority
   to do and perform  each and every act and thing  requisite or necessary to be
   done in and about the premises, as fully to all intents and purposes he might
   or could  do in  person,  hereby  ratifying  and  confirming  all  that  said
   attorneys-in-fact  and agents or any of them,  or their or his  substitute or
   substitutes, may lawfully do or cause to be done by virtue hereof.

              IN WITNESS WHEREOF,  the undersigned has signed his name this 16th
   day of April, 1999.

                                             /s/ HARVEY N. MEDVIN
                                             ----------------------
                                             Harvey N. Medvin


================================================================================
                                                                   Exhibit 25(a)

                                    FORM T-1

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                            STATEMENT OF ELIGIBILITY
                   UNDER THE TRUST INDENTURE ACT OF 1939 OF A
                   CORPORATION DESIGNATED TO ACT AS TRUSTEE

                      CHECK IF AN APPLICATION TO DETERMINE
                      ELIGIBILITY OF A TRUSTEE PURSUANT TO
                             SECTION 305(b)(2) |__|



                              THE BANK OF NEW YORK
               (Exact name of trustee as specified in its charter)

New York                                               13-5160382
(State of incorporation                                (I.R.S. employer
if not a U.S. national bank)                           identification no.)

One Wall Street, New York, N.Y.                        10286
(Address of principal executive offices)               (Zip code)


                                   _________

                                 Aon Corporation
               (Exact name of obligor as specified in its charter)


Delaware                                               36-3051915
(State or other jurisdiction of                        (I.R.S. employer
incorporation or organization)                         identification no.)

123 North Wacker Drive
Chicago, Illinois                                      60606
(Address of principal executive offices)               (Zip code)

                                   _________

                                 Debt Securities
                       (Title of the indenture securities)

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

<PAGE>

1.                 GENERAL INFORMATION.  FURNISH THE FOLLOWING INFORMATION AS
TO THE TRUSTEE:

     (A)  NAME AND ADDRESS OF EACH EXAMINING OR  SUPERVISING  AUTHORITY TO WHICH
          IT IS SUBJECT.

- --------------------------------------------------------------------------------
                  Name                                        Address
- --------------------------------------------------------------------------------

     Superintendent of Banks of the State of      2 Rector Street, New York,
     New York                                     N.Y.  10006, and Albany,
                                                  N.Y. 12203

     Federal Reserve Bank of New York             33 Liberty Plaza, New York,
                                                  N.Y.  10045

     Federal Deposit Insurance Corporation        Washington, D.C.  20429

     New York Clearing House Association          New York, New York   10005

     (B) WHETHER IT IS AUTHORIZED TO EXERCISE CORPORATE TRUST POWERS.

     Yes.

2.   AFFILIATIONS WITH OBLIGOR.

     If  the  obligor  is an  affiliate  of  the  trustee,  describe  each  such
     affiliation.

     None.

16.  LIST OF EXHIBITS.

     EXHIBITS IDENTIFIED IN PARENTHESES BELOW, ON FILE WITH THE COMMISSION,  ARE
     INCORPORATED  HEREIN BY  REFERENCE AS AN EXHIBIT  HERETO,  PURSUANT TO RULE
     7A-29  UNDER THE TRUST  INDENTURE  ACT OF 1939  (THE  "ACT")  AND 17 C.F.R.
     229.10(D).

     1.   A copy  of  the  Organization  Certificate  of The  Bank  of New  York
          (formerly  Irving Trust Company) as now in effect,  which contains the
          authority  to  commence  business  and a grant of powers  to  exercise
          corporate  trust  powers.  (Exhibit 1 to  Amendment  No. 1 to Form T-1
          filed with Registration  Statement No. 33-6215,  Exhibits 1a and 1b to
          Form T-1 filed with Registration  Statement No. 33-21672 and Exhibit 1
          to Form T-1 filed with Registration Statement No.
          33-29637.)

     4.   A copy of the existing By-laws of the Trustee.  (Exhibit 4 to Form T-1
          filed with Registration Statement No. 33-31019.)

     6.   The  consent of the  Trustee  required  by Section  321(b) of the Act.
          (Exhibit 6 to Form T-1 filed with Registration Statement No.
          33-44051.)

     7.   A copy of the latest  report of  condition  of the  Trustee  published
          pursuant to law or to the requirements of its supervising or examining
          authority.

                                      -2-
<PAGE>
                                    SIGNATURE



     Pursuant to the requirements of the Act, the Trustee, The Bank of New York,
a corporation  organized  and existing  under the laws of the State of New York,
has duly caused this  statement of eligibility to be signed on its behalf by the
undersigned,  thereunto duly authorized,  all in The City of New York, and State
of New York, on the 14th day of May, 1999.


                                        THE BANK OF NEW YORK



                                        By:       /s/  MICHELE L. RUSSO
                                            ---------------------------------
                                            Name:    MICHELE L. RUSSO
                                            Title:   ASSISTANT TREASURER

<PAGE>
- ------------------------------------------------------------------------------

                       Consolidated Report of Condition of

                              THE BANK OF NEW YORK

                   of One Wall Street, New York, N.Y. 10286
                    And  Foreign  and  Domestic  Subsidiaries,  a member  of the
Federal Reserve System, at the close of business December 31, 1998, published in
accordance  with a call  made by the  Federal  Reserve  Bank  of  this  District
pursuant to the provisions of the Federal Reserve Act.

                                                             Dollar Amounts
ASSETS                                                        in Thousands
Cash and balances due from depository
  institutions:
  Noninterest-bearing balances and                                         
   currency and coin..................                          $3,951,273
  Interest-bearing balances...........                           4,134,162
Securities:
  Held-to-maturity securities.........                             932,468
  Available-for-sale securities.......                           4,279,246
Federal funds sold and Securities                                          
  purchased under agreements to resell                           3,161,626
Loans and lease financing receivables:
  Loans and leases, net of unearned                                        
   income...............37,861,802
  LESS: Allowance for loan and                                             
   lease losses............619,791
  LESS: Allocated transfer risk                                            
   reserve........................3,572
  Loans and leases, net of unearned                                        
   income, allowance, and reserve.....                          37,238,439
Trading Assets........................                           1,551,556
Premises and fixed assets (including                                       
  capitalized leases).................                             684,181
Other real estate owned...............                              10,404
Investments in unconsolidated                                              
  subsidiaries and associated                                              
  companies...........................                             196,032
Customers' liability to this bank on                                       
  acceptances outstanding.............                             895,160
Intangible assets.....................                           1,127,375
Other assets..........................                           1,915,742
Total assets..........................                         -----------
                                                               $60,077,664
                                                               ===========
LIABILITIES
Deposits:
  In domestic offices.................                         $27,020,578
  Noninterest-bearing.......11,271,304
  Interest-bearing..........15,749,274
  In foreign offices, Edge and                                             
   Agreement subsidiaries, and IBFs...                          17,197,743
  Noninterest-bearing..........103,007
  Interest-bearing..........17,094,736
Federal funds purchased and                                                
  Securities sold under agreements to                                      
  repurchase..........................                           1,761,170
Demand notes issued to the                                                 
  U.S.Treasury........................                             125,423
Trading liabilities...................                           1,625,632
Other borrowed money:
  With remaining maturity of one year                                      
   or less............................                           1,903,700
  With remaining maturity of more                                          
   than one year through three years..                                   0
  With remaining maturity of more                                          
   than three years...................                              31,639
Bank's liability on acceptances                                            
  executed and outstanding............                             900,390
Subordinated notes and debentures.....                           1,308,000
Other liabilities.....................                           2,708,852
                                                                ----------
Total liabilities.....................                          54,583,127
                                                                ==========
EQUITY CAPITAL
Common stock..........................                           1,135,284
Surplus...............................                             764,443
Undivided profits and capital reserves                           3,542,168
Net unrealized holding gains (losses)                                      
  on available-for-sale securities....                              82,367
Cumulative foreign currency                  
  translation adjustments.............                          (   29,725)
Total equity capital..................                           5,494,537
Total liabilities and equity capital..                         ----------- 
                                                               $60,077,664
                                                               ===========

      I,  Thomas J.  Mastro,  Senior Vice  President  and  Comptroller  of the
above-named  bank do hereby  declare  that this Report of  Condition  has been
prepared  in  conformance  with  the  instructions  issued  by  the  Board  of
Governors of the Federal  Reserve System and is true to the best of my knowledge
and belief.
==============================================================================

                                                        Thomas J. Mastro

      We, the undersigned directors, attest to the correctness of this Report of
Condition  and  declare  that it has been  examined by us and to the best of our
knowledge  and belief has been  prepared in  conformance  with the  instructions
issued by the Board of Governors of the Federal  Reserve  System and is true and
correct.

Thomas A. Reyni                                                     
Gerald L. Hassell                           Directors
Alan R. Griffith


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

________________________________________________________________________________
                                                                   Exhibit 25(b)


                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                          __________________________

                                    FORM T-1

                         STATEMENT OF ELIGIBILITY UNDER
                      THE TRUST INDENTURE ACT OF 1939 OF A
                   CORPORATION DESIGNATED TO ACT AS TRUSTEE
             Check if an Application to Determine Eligibility of
                  a Trustee Pursuant to Section 305(b)(2)___
           _______________________________________________________

                      U.S. BANK TRUST NATIONAL ASSOCIATION
               (Exact name of Trustee as specified in its charter)

111 East Wacker Drive,                                   36-4046888
Suite 3000                                    I.R.S. Employer Identification No.
Chicago, Illinois                                          60601             
(Address of principal executive offices)                (Zip Code) 


                                Patricia M. Trlak
                        111 East Wacker Drive, Suite 3000
                             Chicago, Illinois 60601
                            Telephone (312) 228-9447
            (Name, address and telephone number of agent for service)


                                 Aon CORPORATION
               (Exact name of obligor as specified in its charter)

                                    DELAWARE
         (State or other jurisdiction of incorporation or organization)

                                   36-3051915
                      (I.R.S. Employer Identification No.)

123 NORTH WACKER DRIVE
CHICAGO, ILLINOIS                                              60606
(Address of Principal Executive Offices)                     (Zip Code)

                       SENIOR SUBORDINATED DEBT SECURITIES
                       (Title of the Indenture Securities)

________________________________________________________________________________

<PAGE>
                                    FORM T-1
                                    --------


ITEM  1.  GENERAL  INFORMATION.   Furnish  the  following  information  as  to
     the Trustee.

         a)   Name and address of each  examining  or  supervising  authority to
              which it is subject.
                  Comptroller of the Currency Washington, D.C.

         b) Whether it is authorized to exercise corporate trust powers.
                  Yes

ITEM 2.  AFFILIATIONS  WITH  OBLIGOR.  If the obligor is an  affiliate  of the
         Trustee, describe each such affiliation.
            None

ITEMS 3-15  Not applicable because, to the best of Trustee's knowledge, the
            Trustee is not a trustee under any other  indenture  under which any
            other securities or certificates of interest or participation in any
            other  securities of the obligor are  outstanding  and there is not,
            nor has there been,  a default  with  respect to  securities  issued
            under this indenture.

ITEM  16.  LIST OF  EXHIBITS:  List  below  all  exhibits  filed  as a part of
           this statement of eligibility and qualification.

         1. A copy of the Articles of  Association of the Trustee now in effect,
            incorporated  herein by  reference  to  Exhibit 1 to Item 16 of Form
            T-1, Registration No. 333-18235*

         2. A copy of the  certificate  of  authority of the Trustee to commence
            business,  incorporated  herein by reference to Exhibit 2 to Item 16
            of Form T-1, Registration No. 333-18235 .*

         3. A copy of the  certificate  of  authority of the Trustee to exercise
            corporate trust powers,  incorporated herein by reference to Exhibit
            3 to Item 16 of Form T-1, Registration No. 333-18235*

         4. A copy of the  existing  bylaws of the  Trustee,  as now in  effect,
            incorporated  herein by  reference  to  Exhibit 4 to Item 16 of Form
            T-1, Registration No. 333-18235*

         5. Not applicable.

         6. The consent of the Trustee  required by Section  321(b) of the Trust
            Indenture Act of 1939, incorporated herein by reference to Exhibit 6
            of Form T-1, Registration No. 333-18235*

         7. A copy of the latest  report of condition  of the Trustee  published
            pursuant to law or the  requirements of its supervising or examining
            authority, filed herewith.

         8. Not applicable.

         9. Not applicable.

     *  See* at top of page 3

                                      -2-
<PAGE>
     * Exhibits thus designated are incorporated herein by reference to Exhibits
     bearing  identical  numbers in Item 16 of the Form T-1 filed by the Trustee
     with the Securities and Exchange  Commission  with the specific  references
     noted.



                                    SIGNATURE

      Pursuant  to the  requirements  of the  Trust  Indenture  Act of 1939,  as
      amended,  the Trustee,  U.S. BANK TRUST NATIONAL  ASSOCIATION,  a national
      banking  association  organized and existing  under the laws of the United
      States of America,  has duly  caused this  statement  of  eligibility  and
      qualification  to be signed on its  behalf by the  undersigned,  thereunto
      duly authorized, all in the City of Chicago, State of Illinois on the 18th
      day of May, 1999.


                              U.S. BANK TRUST NATIONAL ASSOCIATION

                              By:   /s/ Patricia M. Trlak
                                    --------------------------------        
                                    Patricia M. Trlak
                                    Vice President and Assistant Secretary


                                      -3-
<PAGE>
U.S. Bank Trust National Association Call Date:12/31/1998 ST-BK:17-1638 FFIEC033
400 North  Michigan Avenue                                             Page RC-1
Chicago, IL  60611                    Vendor ID: D        CERT:34094
                                                                          9

Transit Number:  09600069

CONSOLIDATED REPORT OF CONDITION FOR INSURED COMMERCIAL
AND STATE-CHARTERED SAVINGS BANKS FOR DECEMBER 31, 1998

All schedules are to be reported in thousands of dollars.  Unless otherwise
indicated,
report the amount outstanding as of the last business day of the quarter.

<TABLE>
<CAPTION>
Schedule RC - Balance Sheet
                                                                      C200 <-
                                                                                      Dollar Amounts in Thousands
- -----------------------------------------------------------------------------------------------------------------
ASSETS                                                                          RCON
<S>                                                                             <C>           <C>       <C>
1. Cash and balances due from depository institutions (from Schedule RC-A):     ----
   a. Noninterest-bearing balances and currency and coin (1)____________________0081. .        11,111    1.a
   b. Interest-bearing balances (2)____________________________________________ 0071. .        48,890    1.b
2. Securities:
   a. Held-to-maturity securities (from Schedule RC-B, column A)________________1754. .             0    2.a
   b. Available-for-sale securities (from Schedule RC-B, column D)______________1773. .         3,735    2.b
3. Federal funds sold and securities purchased under agreements to resell_______1350. .             0    3.
4. Loans and lease financing receivables:
   a. Loans and leases, net of unearned income                         RCON
                                                                       ----
      (from Schedule RC-C) ____________________________________________2122. .         0 .  .  .  .  .   4.a
   b.   LESS: Allowance for loan and lease losses______________________3123. .         0 .  .  .  .  .   4.b
   c.   LESS:  Allocated transfer risk reserve_________________________3128. .         0 .  .  .  .  .   4.c2
   d.  Loans and leases, net of unearned income,
      allowance, and reserve (item 4.a minus 4.b and 4.c)_______________________2125. .              0   4.d
5. Trading assets_______________________________________________________________3545. .              0   5.
6. Premises and fixed assets (including capitalized leases)____________________ 2145. .             82   6.
7. Other real estate owned (from Schedule RC-M)________________________________ 2150. .              0   7.
8. Investments in unconsolidated subsidiaries and associated companies (from
   Schedule RC-M)______________________________________________________________ 2130. .              0   8.
9. Customers' liability to this bank on acceptances outstanding________________ 2155. .              0   9.
10.   Intangible assets (from Schedule RC-M)____________________________________2143. .         44,547  10.
11.   Other assets (from Schedule RC-F)_________________________________________2160. .          2,739  11.
12.   Total assets (sum of items 1 through 11)__________________________________2170. .        111,104  12.
_____________
<FN>
(1)   Includes cash items in process of collection and unposted debits.
(2)   Includes time certificates of deposit not held for trading.
</FN>
</TABLE>


<PAGE>
U.S. Bank Trust National Association Call Date:12/31/1998 ST-BK:17-1638 FFIEC033
400 North  Michigan Avenue                                             Page RC-2
Chicago, IL  60611                    Vendor ID: D        CERT:34094
                                                                           10
Transit Number:  09600069

<TABLE>
<CAPTION>
SCHEDULE RC - CONTINUED
                                                                                      Dollar Amounts in Thousands
- -----------------------------------------------------------------------------------------------------------------
LIABILITIES
<S>                                                                              <C>           <C>       <C>
13.   Deposits:                                                                  RCON     
   a. In domestic offices (sum of totals of                                      ----
      columns A and C from Schedule RC-E)_______________________________________ 2000. .             0   13.a
                                             RCON
                                             ----
      (1)Noninterest bearing (1) ____________6631. .              0                      .  .  .  .  .   13.a.1
      (2)Interest-bearing___________________ 6636. .              0                      .  .  .  .  .   13.a.2
   b. In foreign offices, Edge and Agreement subsidiaries, and IBFs_____________         .  .  .  .  .
      (1)Noninterest-bearing____________________________________________________         .  .  .  .  .
      (2)Interest-bearing_______________________________________________________         .  .  .  .  .
14.   Federal funds purchased and securities sold under agreements to repurchase 2800. .             0   14.
15.   a. Demand notes issued to the U.S. Treasury ______________________________ 2840. .             0   15.a
      b. Trading liabilities ___________________________________________________ 3548. .             0   15.b
16.   Other borrowed money (includes mortgage indebtedness and obligations under
   capitalized leases): 
   a. With a remaining maturity of one year or less ____________________________ 2332. .             0   16.a
   b. With a remaining maturity of more than one year through three years ______ A547. .             0   16.b
   c. With a remaining maturity of more than three years________________________ A548. .             0   16.c
17.   Not applicable
18.   Bank's liability on acceptances executed and outstanding__________________ 2920. .             0   18.
19.   Subordinated notes and debentures (2)_____________________________________ 3200. .             0   19.
20.   Other liabilities (from Schedule RC-G)____________________________________ 2930. .         2,627   20.
21.   Total liabilities (sum of items 13 through 20)____________________________ 2948. .         2,627   21.
22.   Not applicable

EQUITY CAPITAL
23.   Perpetual preferred stock and related surplus_____________________________ 3838. .             0   23.
24.   Common stock______________________________________________________________ 3230. .         1,000   24.        
25.   Surplus (exclude all surplus related to preferred stock)__________________ 3839. .       106,712   25.
26.   a. Undivided profits and capital reserves_________________________________ 3632. .           762   26.a
   b. Net unrealized holding gains (losses) on available-for-sale securities____ 8434. .             3   26.b
27.   Cumulative foreign currency translation adjustments_______________________         .  .  .  .  .
28.   Total equity capital (sum of items 23 through 27)_________________________ 3210. .       108,477   28.
29.   Total liabilities and equity capital (sum of items 21 and 28)_____________ 3300. .       111,104   29.

Memorandum

To be reported only with the March Report of Condition.


1.   Indicate  in the box at the right the  number of the  statement  below that
     best describes the most  comprehensive  level of auditing work performed by
     the  bank  by  independent   external   auditors  as  of  any  date  during
     1997_______________________________________________________________________ 6724. .           N/A   M.1

1     =  Independent  audit  of  the  bank     4    =  Directors'  examination of the bank
         conducted  in   accordance   with             performed    by   other    external
         generally    accepted    auditing             auditors  (may be required by state
         standards  by a certified  public     5    =  chartering authority)
2     =  accounting  firm which  submits a     6    =  Review    of    bank's    financial
         report on the bank                            statements by external auditors
         Independent  audit of the  bank's     7    =  Compilation     of    the    bank's
         parent holding company  conducted     8    =  financial  statements  by  external
         in  accordance   with   generally             auditors
3     =  accepted auditing  standards by a             Other audit  procedures  (excluding
         certified public  accounting firm             tax preparation work)
         which  submits  a  report  on the             No external audit work
         consolidated    holding   company
         (but not on the bank separately)
         Directors'   examination  of  the
         bank   conducted  in   accordance
         with generally  accepted autiding
         standards  by a certified  public
         accounting  firm (may be required
         by state chartering authority)
___________
<FN>
(1)   Includes total demand deposits and noninterest-bearing time and savings
deposits.
(2)   Includes limited life preferred stock and related surplus.
</FN>
</TABLE>

<PAGE>
U.S. Bank Trust National Association Call Date:12/31/1998 ST-BK:17-1638 FFIEC033
400 North  Michigan Avenue                                             Page RC-3
Chicago, IL  60611                    Vendor ID: D        CERT:34094
                                                                         11

Transit Number:  09600069

SCHEDULE RC-A - CASH AND BALANCES DUE FROM DEPOSITORY INSTITUTIONS

<TABLE>
<CAPTION>
Exclude assets held for trading.
                                                                      C205 < -
                                                                                      Dollar Amounts in Thousands
- -----------------------------------------------------------------------------------------------------------------
<S>                                                                                     <C>         <C>         <C>
1. Cash items in process of collection, unposted debits, and currency and coin:         RCON
                                                                                        ----
   a. Cash items in process of collection and unposted debits___________________________0020. .          0      1.a
   b. Currency and coin ________________________________________________________________0080. .          0      1.b
2. Balances due from depository institutions in the U.S.:
   a. U.S. branches and agencies of foreign banks ______________________________________0083. .          0      2.a
   b. Other commercial banks in the U.S. and other depository institutions in the U.S. _0085. .     60,001      2.b
3. Balances due from banks in foreign countries and foreign central banks:
   a. Foreign branches of other U.S. banks _____________________________________________0073. .          0      3.a
   b. Other banks in foreign countries and foreign central banks _______________________0074. .          0      3.b
4. Balances due from Federal Reserve Banks _____________________________________________0090. .          0      4.
5. Total (sum of items 1 through 4) (must equal Schedule RC, sum of items 1.a and 1.b)__0010. .     60,001      5.
</TABLE>


<TABLE>
<CAPTION>
MEMORANDUM
                                                                                      Dollar Amounts in Thousands
- -----------------------------------------------------------------------------------------------------------------
<S>                                                                                <C>             <C>         <C>
1. Noninterest-bearing balances due from commercial banks in the U.S.              RCON
                                                                                   ----
   (included in items 2.a and 2.b above) _________________________________________ 0050. .         11,111      M.1
</TABLE>



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