BANK OF BOSTON CORP
S-3/A, 1997-05-29
NATIONAL COMMERCIAL BANKS
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<PAGE>
 
      
   AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MAY 29, 1997     
                                                   
                                                REGISTRATION NO. 333-27229     
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
 
                               ----------------
                               
                            AMENDMENT NO. 1 TO     
                                   FORM S-3
            REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
 
                               ----------------
 
                                              BANKBOSTON CAPITAL TRUST III
       BANKBOSTON CORPORATION
                                              (EXACT NAME OF REGISTRANT AS
    (EXACT NAME OF REGISTRANT AS            SPECIFIED IN ITS TRUST AGREEMENT)
      SPECIFIED IN ITS CHARTER)
 
 
                                                        DELAWARE
            MASSACHUSETTS
                                             (STATE OR OTHER JURISDICTION OF
   (STATE OR OTHER JURISDICTION OF           INCORPORATION OR ORGANIZATION)
   INCORPORATION OR ORGANIZATION)
 
 
                                                      ------------
            ------------
 
 
                                                          6719
                6712
                                              (PRIMARY STANDARD INDUSTRIAL
    (PRIMARY STANDARD INDUSTRIAL               CLASSIFICATION CODE NUMBER)
     CLASSIFICATION CODE NUMBER)
 
 
                                                       APPLIED FOR
             04-2471221
                                          (I.R.S. EMPLOYER IDENTIFICATION NO.)
(I.R.S. EMPLOYER IDENTIFICATION NO.)
 
                               ----------------
 
                              100 FEDERAL STREET
                          BOSTON, MASSACHUSETTS 02110
                                (617) 434-2200
  (ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE, OF
                   REGISTRANTS' PRINCIPAL EXECUTIVE OFFICES)
 
                               ----------------
 
        GARY A. SPIESS, ESQ.                      JANICE B. LIVA, ESQ.
      GENERAL COUNSEL AND CLERK               ASSISTANT GENERAL COUNSEL AND
       BANKBOSTON CORPORATION                        ASSISTANT CLERK
         100 FEDERAL STREET                      BANKBOSTON CORPORATION
     BOSTON, MASSACHUSETTS 02110                   100 FEDERAL STREET
           (617) 434-2870                      BOSTON, MASSACHUSETTS 02110
                                                     (617) 434-8630
(NAME, ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE,
                            OF AGENTS FOR SERVICE)
 
                               ----------------
 
                                  COPIES TO:
 
      EDWARD F. PETROSKY, ESQ.                 GREGORY A. FERNICOLA, ESQ.
                                          SKADDEN, ARPS, SLATE, MEAGHER & FLOM
        BROWN & WOOD LLP                                   LLP
       ONE WORLD TRADE CENTER
      NEW YORK, NEW YORK 10048                      919 THIRD AVENUE
 
                               ---------------- NEW YORK, NEW YORK 10022
 
       Approximate Date of Commencement of Proposed Sale to the Public:
  As soon as practicable after this Registration Statement becomes effective.
 
  If any of the securities being registered on this Form are to be offered in
connection with the formation of a holding company and there is compliance
with General Instruction G, 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 ("Securities Act"), check the following box. [_]
 
  If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following
box and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. [_]
 
  If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [_]
 
  If delivery of the prospectus is expected to be made pursuant to Rule 434
under the Securities Act, please check the following box. [_]
 
                               ----------------
 
  THE REGISTRANTS HEREBY AMEND THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANTS
SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS
REGISTRATION STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH
SECTION 8(A) OF THE SECURITIES ACT OF 1933 OR UNTIL THIS REGISTRATION
STATEMENT SHALL BECOME EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING
PURSUANT TO SAID SECTION 8(A), MAY DETERMINE.
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<PAGE>
 
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT. A         +
+REGISTRATION STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE   +
+SECURITIES AND EXCHANGE COMMISSION. THESE SECURITIES MAY NOT BE SOLD NOR MAY  +
+OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT        +
+BECOMES EFFECTIVE. THE PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR    +
+THE SOLICITATION OF ANY OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE     +
+SECURITIES IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE    +
+UNLAWFUL PRIOR TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF  +
+ANY SUCH STATE.                                                               +
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
PROSPECTUS                                                 Subject to Completion
Preliminary Prospectus, Dated May   , 1997
 
                                  $250,000,000
                          
                       BankBoston Capital Trust III     
 
                        FLOATING RATE CAPITAL SECURITIES
                (Liquidation Amount $1,000 per Capital Security)
         fully and unconditionally guaranteed, as described herein, by
                             
                          BankBoston Corporation     
 
                                      LOGO
 
                                  ----------
   
  The Floating Rate Capital Securities (the "Capital Securities") offered
hereby will represent beneficial interests in BankBoston Capital Trust III, a
statutory business trust formed under the laws of the State of Delaware (the
"Trust"). BankBoston Corporation, a Massachusetts corporation (the
"Corporation"), will be the owner of all of the beneficial interests
represented by common securities of the Trust (the "Common Securities", and
together with the Capital Securities, the "Trust Securities"). The Bank of New
York is the Property Trustee of the Trust. The Trust exists for the sole
purpose of issuing the Trust Securities and investing the proceeds thereof in
the Floating Rate Junior Subordinated Deferrable Interest Debentures (the
"Junior Subordinated Debentures") of the Corporation, which are scheduled to
mature on     , 2027 (the "Stated Maturity Date"). The Capital Securities will
have a preference over the Common Securities under certain circumstances with
respect to cash distributions and amounts payable on liquidation, redemption or
otherwise. See "Description of Capital Securities--Subordination of Common
Securities."     
 
  The Capital Securities will be represented by global Capital Securities in
fully registered form, deposited with a custodian for and registered in the
name of a nominee of The Depository Trust Company ("DTC"). Beneficial interests
in such global Capital Securities will be shown on, and transfers thereof will
be effected through, records maintained by DTC and its participants. Beneficial
interests in such Capital Securities will trade in DTC's Same-Day Funds
Settlement System and secondary market trading activity in such interests will
therefore settle in immediately available funds. See "Description of Capital
Securities--Form, Denomination, Book-Entry Procedures and Transfer."
                                                        (Continued on next page)
 
                                  ----------
   
  SEE "RISK FACTORS" BEGINNING ON PAGE 9 FOR A DISCUSSION OF CERTAIN FACTORS
THAT SHOULD BE CONSIDERED BY PROSPECTIVE INVESTORS IN EVALUATING AN INVESTMENT
IN THE CAPITAL SECURITIES.     
 
                                  ----------
 
    THE SECURITIES OFFERED HEREBY ARE  NOT DEPOSITS OR OTHER OBLIGATIONS OF
        A  BANK AND ARE  NOT INSURED BY  THE FEDERAL DEPOSIT  INSURANCE
             CORPORATION OR ANY OTHER GOVERNMENTAL AGENCY.
 
 THESE SECURITIES HAVE NOT BEEN APPROVED  OR DISAPPROVED BY THE SECURITIES AND
  EXCHANGE  COMMISSION  OR  ANY  STATE  SECURITIES  COMMISSION  NOR  HAS  THE
    SECURITIES AND EXCHANGE  COMMISSION OR ANY  STATE SECURITIES  COMMISSION
     PASSED  UPON  THE  ACCURACY  OR  ADEQUACY  OF  THIS  PROSPECTUS.  ANY
      REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
 
<TABLE>
<CAPTION>
                                            PRICE TO   UNDERWRITING  PROCEEDS TO
                                            PUBLIC(1)  COMMISSION(2) TRUST(3)(4)
                                            ---------  ------------- -----------
<S>                                        <C>         <C>           <C>
Per Capital Security.............            $              (4)        $
Total..................................... $                (4)      $
</TABLE>
- -----
(1) Plus accumulated Distributions, if any, from    , 1997
(2) The Corporation and the Trust have agreed to indemnify the several
    Underwriters against certain liabilities, including liabilities under the
    Securities Act of 1933, as amended. See "Underwriting."
(3) Before deducting estimated expenses of $    payable by the Corporation.
(4) In view of the fact that the proceeds of the sale of the Capital Securities
    will be invested in the Junior Subordinated Debentures, the Corporation has
    agreed to pay to the Underwriters, as compensation, $    per Capital
    Security (or $    in the aggregate). See "Underwriting."
 
                                  ----------
 
  The Capital Securities are offered by the several Underwriters, subject to
prior sale, when, as and if issued to and accepted by the Underwriters and
subject to approval of certain legal matters by counsel for the Underwriters
and to certain other conditions. The Underwriters reserve the right to
withdraw, cancel or modify such offer and to reject orders in whole or in part.
It is expected that delivery of the Capital Securities will be made through the
facilities of DTC, on or about        , 1997, against payment therefor in
immediately available funds.
 
                                  ----------
          
Morgan Stanley & Co. Incorporated     
           
        CS First Boston Corporation     
                         
                      Lehman Brothers                     
                                                       Salomon Brothers Inc     
 
                                  ----------
                  
               The date of this Prospectus is May   , 1997.     
<PAGE>
 
  CERTAIN PERSONS PARTICIPATING IN THE OFFERING OF THE CAPITAL SECURITIES MAY
ENGAGE IN TRANSACTIONS THAT STABILIZE, MAINTAIN, OR OTHERWISE AFFECT THE PRICE
OF THE CAPITAL SECURITIES. SUCH TRANSACTIONS MAY INCLUDE STABILIZING, THE
PURCHASE OF THE CAPITAL SECURITIES TO COVER SYNDICATE SHORT POSITIONS AND THE
IMPOSITION OF PENALTY BIDS. FOR A DESCRIPTION OF THESE ACTIVITIES, SEE
"UNDERWRITING."
 
                               ----------------
 
(Continued from the previous page)
 
  Holders of the Trust Securities will be entitled to receive cumulative cash
distributions arising from the payment of interest on the Junior Subordinated
Debentures, accumulating from the date of original issuance and payable
quarterly in arrears on    ,     ,      and of each year, commencing    ,
1997, at a rate per annum reset quarterly equal to LIBOR (as defined herein)
plus    % (the "Distribution Rate") on the Liquidation Amount of $1,000 per
Trust Security ("Distributions"). The Corporation will have the right to defer
payments of interest on the Junior Subordinated Debentures at any time and
from time to time for a period not exceeding 20 consecutive quarterly periods
with respect to each deferral period (each, an "Extension Period"), provided
that no Extension Period may extend beyond the Stated Maturity Date. Upon
termination of any such Extension Period and the payment of all amounts then
due, the Corporation may elect to begin a new Extension Period, subject to the
requirements set forth herein. If and for so long as interest payments on the
Junior Subordinated Debentures are so deferred, Distributions on the Trust
Securities will also be deferred and the Corporation will not be permitted,
subject to certain exceptions described herein, to declare or pay any cash
distributions with respect to the Corporation's capital stock (which includes
common and preferred stock) or to make any payment with respect to debt
securities of the Corporation that rank pari passu with or junior to the
Junior Subordinated Debentures. During an Extension Period, interest on the
Junior Subordinated Debentures will continue to accrue (and the amount of
Distributions to which holders of the Trust Securities are entitled will
continue to accumulate) at the applicable periodic Distribution Rate,
compounded quarterly from the relevant payment date for such interest, and
holders of Trust Securities will be required to accrue interest income for
United States federal income tax purposes. See "Description of Junior
Subordinated Debentures--Option to Extend Interest Payment Date" and "Certain
Federal Income Tax Consequences--Interest Income and Original Issue Discount."
 
  The Corporation will, through the Guarantee, the Common Guarantee, the Trust
Agreement, the Junior Subordinated Debentures and the Indenture (each as
defined herein), taken together, fully, irrevocably and unconditionally
guarantee all of the Trust's obligations under the Trust Securities. See
"Relationship Among the Capital Securities, the Junior Subordinated Debentures
and the Guarantee--Full and Unconditional Guarantee." The Guarantee and the
Common Guarantee will guarantee payments of Distributions and payments on
liquidation of the Trust or redemption of the Trust Securities, but in each
case only to the extent that the Trust holds funds on hand legally available
therefor and has failed to make such payments, as described herein. See
"Description of Guarantee." If the Corporation fails to make a required
payment on the Junior Subordinated Debentures, the Trust will not have
sufficient funds to make the related payments, including Distributions, on the
Trust Securities. The Guarantee and the Common Guarantee will not cover any
such payment when the Trust does not have sufficient funds on hand legally
available therefor. In such event, a holder of Capital Securities may
institute a legal proceeding directly against the Corporation to enforce its
rights in respect of such payment. See "Description of Junior Subordinated
Debentures--Enforcement of Certain Rights by Holders of Capital Securities."
The obligations of the Corporation under the Guarantee, the Common Guarantee
and the Junior Subordinated Debentures will rank subordinate and junior in
right of payment to all Senior Indebtedness (as defined in "Description of
Junior Subordinated Debentures--Subordination").
 
  The Trust Securities will be subject to mandatory redemption in a Like
Amount (as defined herein), (i) in whole but not in part, on the Stated
Maturity Date upon repayment of the Junior Subordinated Debentures at a
redemption price equal to the principal amount of, plus accrued interest on,
the Junior Subordinated Debentures (the "Maturity Redemption Price"), (ii) in
whole but not in part, at any time, contemporaneously with the
 
                                       2
<PAGE>
 
(Continued from the previous page)
 
optional prepayment of the Junior Subordinated Debentures, upon the occurrence
and continuation of a Special Event (as defined herein) at a redemption price
(the "Early Redemption Price") equal to the Prepayment Price (as defined
below), and (iii) in whole or in part, on or after    , 2007,
contemporaneously with the optional prepayment by the Corporation of the
Junior Subordinated Debentures, at the Early Redemption Price. Any of the
Maturity Redemption Price and the Early Redemption Price may be referred to
herein as the "Redemption Price." See "Description of Capital Securities--
Redemption." Subject to the Corporation having received prior approval of the
Board of Governors of the Federal Reserve System (the "Federal Reserve") to do
so if then required under applicable capital guidelines or policies of the
Federal Reserve, the Junior Subordinated Debentures will be prepayable prior
to the Stated Maturity Date at the option of the Corporation (i) on or after
   , 2007, in whole or in part, or (ii) at any time, in whole but not in part,
upon the occurrence and continuation of a Special Event, in each case at a
prepayment price (the "Prepayment Price") equal to 100% of the principal
amount of the Junior Subordinated Debentures so redeemed plus accrued interest
thereon to the date of prepayment. See "Description of Junior Subordinated
Debentures--Optional Prepayment" and "--Special Event Prepayment."
 
  The Corporation will have the right at any time to terminate the Trust and
cause a Like Amount of the Junior Subordinated Debentures to be distributed to
the holders of the Trust Securities in liquidation of the Trust, subject to
(i) the Corporation having received an opinion of counsel to the effect that
such distribution will not be a taxable event to holders of the Capital
Securities and (ii) the prior approval of the Federal Reserve to do so if then
required under applicable capital guidelines or policies of the Federal
Reserve. Unless the Junior Subordinated Debentures are distributed to the
holders of the Trust Securities, in the event of a liquidation of the Trust as
described herein, after satisfaction of liabilities to creditors of the Trust
as required by applicable law, the holders of the Capital Securities generally
will be entitled to receive a Liquidation Amount of $1,000 per Capital
Security plus accumulated Distributions thereon to the date of payment. See
"Description of Capital Securities--Liquidation of the Trust and Distribution
of Junior Subordinated Debentures."
 
                               ----------------
 
  As used herein, (i) the "Indenture" means the Indenture, to be dated as of
   , 1997, as amended and supplemented from time to time, between the
Corporation and The Bank of New York, as trustee (the "Debenture Trustee"),
relating to the Junior Subordinated Debentures, (ii) the "Trust Agreement"
means the Amended and Restated Declaration of Trust relating to the Trust
among the Corporation, as Sponsor, The Bank of New York, as Property Trustee
(the "Property Trustee"), The Bank of New York (Delaware), as Delaware Trustee
(the "Delaware Trustee"), and the Administrative Trustees named therein
(collectively, with the Property Trustee and Delaware Trustee, the "Issuer
Trustees"), (iii) the "Guarantee" means the Capital Securities Guarantee
Agreement between the Corporation and The Bank of New York, as trustee (the
"Guarantee Trustee") and (iv) the "Common Guarantee" means the Common
Securities Guarantee Agreement of the Corporation.
 
                                       3
<PAGE>
 
                             AVAILABLE INFORMATION
 
  The Corporation is subject to the informational requirements of the
Securities Exchange Act of 1934, as amended (the "Exchange Act"), and in
accordance therewith, files reports, proxy statements and other information
with the Securities and Exchange Commission (the "Commission"). Such reports,
proxy statements and other information may be inspected and copied at the
public reference facilities maintained by the Commission at Room 1024, 450
Fifth Street, N.W., Washington, D.C. 20549 and at the Commission's regional
offices at 7 World Trade Center, 13th Floor, Suite 1300, New York, New York
10048 and Suite 1400, Citicorp Center, 500 West Madison Street, Chicago,
Illinois 60661. Copies of such material may also be obtained by mail from the
Public Reference Section of the Commission at 450 Fifth Street, N.W.,
Washington, D.C. 20549 at prescribed rates. Such information may also be
accessed electronically by means of the Commission's home page on the Internet
(http://www.sec.gov.). In addition, such reports, proxy statements and other
information concerning the Corporation may be inspected at the offices of the
New York Stock Exchange, Inc., 20 Broad Street, New York, New York 10005 and
the Boston Stock Exchange Incorporated, One Boston Place, Boston,
Massachusetts 02108, on which exchanges certain securities of the Corporation
are listed.
 
  No separate financial statements of the Trust have been included herein. The
Corporation and the Trust do not consider that such financial statements would
be material to holders of the Capital Securities because the Trust is a newly
formed special purpose entity, has no operating history or independent
operations and is not engaged in and does not propose to engage in any
activity other than holding as trust assets the Junior Subordinated
Debentures, issuing the Trust Securities and engaging in necessary, advisable
or incidental activities. See "BankBoston Capital Trust III", "Description of
Capital Securities", "Description of Junior Subordinated Debentures" and
"Description of Guarantee". In addition, the Corporation does not expect that
the Trust will file reports, proxy statements and other information under the
Exchange Act with the Commission.
 
  This Prospectus constitutes a part of a registration statement on Form S-3
(the "Registration Statement") filed by the Corporation and the Trust with the
Commission under the Securities Act of 1933, as amended (the "Securities
Act"). This Prospectus does not contain all the information set forth in the
Registration Statement, certain parts of which are omitted in accordance with
the rules and regulations of the Commission, and reference is hereby made to
the Registration Statement and to the exhibits relating thereto for further
information with respect to the Corporation, the Trust and the Trust
Securities. Any statements contained herein concerning the provisions of any
document are not necessarily complete, and, in each instance, reference is
made to the copy of such document filed as an exhibit to the Registration
Statement or otherwise filed with the Commission. Each such statement is
qualified in its entirety by such reference.
 
                                       4
<PAGE>
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
  The following documents filed by the Corporation with the Commission are
incorporated into this Prospectus by reference:
 
    1. The Corporation's Annual Report on Form 10-K for the year ended
  December 31, 1996;
 
    2. The Corporation's Quarterly Report on Form 10-Q for the quarter ended
  March 31, 1997; and
 
    3. The Corporation's Current Reports on Form 8-K dated January 16, 1997
  and April 17, 1997.
 
  All documents subsequently filed by the Corporation pursuant to Section
13(a), 13(c), 14 or 15(d) of the Exchange Act after the date hereof and prior
to the termination of the offering of the Capital Securities offered hereby
shall be deemed to be incorporated by reference into this Prospectus and to be
a part of this Prospectus from the date of filing of such document. Any
statement contained herein or in a document incorporated or deemed to be
incorporated by reference herein shall be deemed to be modified or superseded
for purposes of this Prospectus to the extent that a statement contained
herein or in any other subsequently filed document which also is or is deemed
to be incorporated by reference herein modifies or supersedes such statement.
Any statement so modified or superseded shall not be deemed, except as so
modified or superseded, to constitute a part of this Prospectus.
 
  As used herein, the terms "Prospectus" and "herein" mean this Prospectus,
including the documents incorporated or deemed to be incorporated herein by
reference, as the same may be amended, supplemented or otherwise modified from
time to time. Statements contained in this Prospectus as to the contents of
any contract or other document referred to herein do not purport to be
complete, and where reference is made to the particular provisions of such
contract or other document, such provisions are qualified in all respects by
reference to all of the provisions of such contract or other document. The
Corporation will provide without charge to any person to whom this Prospectus
is delivered, on the written or oral request of such person, a copy of any or
all of the foregoing documents incorporated by reference herein (other than
exhibits not specifically incorporated by reference into the texts of such
documents). Requests for such documents should be directed to: Investor
Relations, BankBoston, P.O. Box 2016, MA BOS 01-20-02, Boston, Massachusetts
02106-2016. Telephone requests may be directed to Investor Relations at (617)
434-7858.
 
                                       5
<PAGE>
 
                               PROSPECTUS SUMMARY
 
  The following summary is qualified in its entirety by the more detailed
information appearing elsewhere in this Prospectus or incorporated herein by
reference.
 
                             BANKBOSTON CORPORATION
   
  The Corporation is a registered bank holding company organized in 1970 under
Massachusetts law with both national and international operations. The
Corporation, through its subsidiaries and, in certain cases, joint ventures, is
engaged in providing a wide variety of personal, corporate and global banking
services to individuals, corporate and institutional customers, governments and
other financial institutions. The Corporation, together with its subsidiaries,
operates a network of 650 offices across the United States and more than 100
offices in 24 countries in Latin America, Europe, Asia and Africa. The major
banking subsidiaries of the Corporation include BankBoston, N.A., Bank of
Boston Connecticut and Rhode Island Hospital Trust National Bank.     
 
                          BANKBOSTON CAPITAL TRUST III
 
  The Trust is a statutory business trust formed under Delaware law pursuant to
(i) the Trust Agreement executed by the Corporation, as Sponsor, The Bank of
New York, as Property Trustee, and The Bank of New York (Delaware), as Delaware
Trustee and the three individual Administrative Trustees named therein, and
(ii) the filing of a certificate of trust with the Delaware Secretary of State
on May 14, 1997. The Trust's business and affairs are conducted by the Issuer
Trustees: the Property Trustee, the Delaware Trustee, and the three individual
Administrative Trustees who are employees or officers of or affiliated with the
Corporation. The Trust exists for the exclusive purposes of (i) issuing and
selling the Trust Securities, (ii) using the proceeds from the sale of the
Trust Securities to acquire the Junior Subordinated Debentures issued by the
Corporation and (iii) engaging in only those other activities necessary,
advisable or incidental thereto. Accordingly, the Junior Subordinated
Debentures will be the sole assets of the Trust, and payments under the Junior
Subordinated Debentures will be the sole revenues of the Trust. All of the
Common Securities will be owned by the Corporation.
 
                                  THE OFFERING
 
Securities Offered............  250,000 Floating Rate Capital Securities
                                (Liquidation Amount $1,000 per Capital
                                Security).
 
Offering Price................  $      per Capital Security plus accumulated
                                Distributions, if any, from      , 1997.
 
Distribution Dates............      ,     ,      and      of each year,
                                commencing      , 1997.
 
Extension Periods.............  Distributions on Capital Securities will be
                                deferred for the duration of any Extension
                                Period elected by the Corporation with respect
                                to the payment of interest on the Junior
                                Subordinated Debentures. No Extension Period
                                will exceed 20 consecutive quarterly periods or
                                extend beyond the Stated Maturity Date. See
                                "Description of Junior Subordinated
                                Debentures--Option to Extend Interest Payment
                                Date" and "Certain Federal Income Tax
                                Consequences--Interest Income and Original
                                Issue Discount."
 
                                       6
<PAGE>
 
 
Ranking.......................     
                                The Capital Securities will rank pari passu,
                                and payments thereon will be made pro rata,
                                with the Common Securities except as described
                                under "Description of Capital Securities--
                                Subordination of Common Securities." The Junior
                                Subordinated Debentures will rank pari passu
                                with the $257,732,000 aggregate principal
                                amount of 8.25% Junior Subordinated Deferrable
                                Interest Debentures due December 15, 2026, the
                                $257,732,000 aggregate principal amount of 7
                                3/4% Junior Subordinated Deferrable Interest
                                Debentures due December 15, 2026 and all other
                                junior subordinated debentures to be issued by
                                the Corporation (collectively, "Other
                                Debentures"), which will be issued and sold to
                                other trusts to be established by the
                                Corporation, in each case similar to the Trust
                                ("Other Trusts"), and will be unsecured and
                                will rank subordinate and junior in right of
                                payment to all Senior Indebtedness to the
                                extent and in the manner set forth in the
                                Indenture. See "Description of Junior
                                Subordinated Debentures." The Guarantee will
                                rank pari passu with the guarantees issued by
                                the Corporation with respect to the 250,000
                                8.25% Capital Securities (Liquidation Amount
                                $1,000 per security) of BankBoston Capital
                                Trust I, the 250,000 7 3/4% Capital Securities
                                (Liquidation Amount $1,000 per security) of
                                BankBoston Capital Trust II and all other
                                guarantees to be issued by the Corporation with
                                respect to capital securities issued or to be
                                issued by Other Trusts (collectively, "Other
                                Guarantees") and will constitute an unsecured
                                obligation of the Corporation and will rank
                                subordinate and junior in right of payment to
                                all Senior Indebtedness to the extent and in
                                the manner set forth in the Guarantee
                                Agreement. See "Description of Guarantee."     
 
Redemption....................  The Trust Securities will be subject to
                                mandatory redemption in a Like Amount, (i) in
                                whole but not in part, on the Stated Maturity
                                Date upon repayment of the Junior Subordinated
                                Debentures, (ii) in whole but not in part, at
                                any time contemporaneously with the optional
                                prepayment of the Junior Subordinated
                                Debentures by the Corporation upon the
                                occurrence and continuation of a Special Event
                                and (iii) in whole or in part, on or after
                                     , 2007 contemporaneously with the optional
                                prepayment by the Corporation of the Junior
                                Subordinated Debentures, in each case at the
                                applicable Redemption Price. See "Description
                                of Capital Securities--Redemption."
 
Ratings.......................  The Capital Securities are expected to be rated
                                "baa1" by Moody's Investors Service, Inc. and
                                "BBB" by Standard & Poor's Ratings Services.
 
Absence of Market for the
 Capital Securities...........  The Capital Securities will be a new issue of   
                                securities for which there currently is no      
                                market. Although the Underwriters have informed 
                                the Trust and the Corporation that they each    
                                currently 
                                
                                       7
<PAGE>
 
                                intend to make a market in the Capital
                                Securities, the Underwriters are not obligated
                                to do so, and any such market making may be
                                discontinued at any time without notice.
                                Accordingly, there can be no assurance as to
                                the development or liquidity of any market for
                                the Capital Securities. The Trust and the
                                Corporation do not intend to apply for listing
                                of the Capital Securities on any securities
                                exchange or for quotation through the NASD
                                Automated Quotation System. See "Underwriting."
 
Form of Capital Securities....  The Capital Securities will be represented by a
                                global certificate or certificates registered
                                in the name of Cede & Co., as nominee for DTC.
                                Beneficial interests in the Capital Securities
                                will be evidenced by, and transfers thereof
                                will be effected only through, records
                                maintained by the participants in DTC. Except
                                as described herein, Capital Securities in
                                certificated form will not be issued in
                                exchange for the global certificate or
                                certificates. See "Description of Capital
                                Securities--Form, Denomination, Book-Entry
                                Procedures and Transfer."
 
Use of Proceeds...............  The proceeds to the Trust from the sale of the
                                Capital Securities will be invested by the
                                Trust in the Junior Subordinated Debentures.
                                The Corporation intends to use the net proceeds
                                from the sale of the Junior Subordinated
                                Debentures for general corporate purposes. The
                                Capital Securities will be eligible to qualify
                                as Tier 1 capital under the capital guidelines
                                of the Federal Reserve. See "Use of Proceeds."
 
                                       8
<PAGE>
 
                                 RISK FACTORS
 
  Prospective purchasers of the Capital Securities should carefully review the
information contained elsewhere in this Prospectus and should particularly
consider the following matters.
 
RANKING OF SUBORDINATED OBLIGATIONS UNDER THE GUARANTEE AND THE JUNIOR
SUBORDINATED DEBENTURES
 
  The obligations of the Corporation under the Guarantee issued by it for the
benefit of the holders of Capital Securities, as well as under the Junior
Subordinated Debentures, will be unsecured and rank subordinate and junior in
right of payment to all Senior Indebtedness. In addition, in the case of a
bankruptcy or insolvency proceeding, the Corporation's obligations under the
Guarantee will also rank subordinate and junior in right of payment to all
liabilities (other than Other Guarantees) of the Corporation. At March 31,
1997, the aggregate principal amount of outstanding Senior Indebtedness was
approximately $275 million. Because the Corporation is a bank holding company,
the right of the Corporation to participate in any distribution of assets of
any subsidiary upon such subsidiary's liquidation or reorganization or
otherwise (and thus the ability of holders of the Capital Securities to
benefit indirectly from such distribution) is subject to the prior claims of
creditors of that subsidiary, except to the extent that the Corporation may
itself be recognized as a creditor of that subsidiary. At March 31, 1997, the
subsidiaries of the Corporation had total liabilities (excluding liabilities
owed to the Corporation) of approximately $59.9 billion. Accordingly, the
Junior Subordinated Debentures will be effectively subordinated to all
existing and future liabilities of the Corporation's subsidiaries, and holders
of Junior Subordinated Debentures should look only to the assets of the
Corporation for payments on the Junior Subordinated Debentures. None of the
Indenture, the Guarantee or the Trust Agreement places any limitation on the
amount of secured or unsecured debt, including Senior Indebtedness, that may
be incurred by the Corporation or its subsidiaries. See "Description of
Guarantee--Status of the Guarantee" and "Description of Junior Subordinated
Debentures--Subordination."
 
  The ability of the Trust to pay amounts due on the Capital Securities is
solely dependent upon the Corporation making payments on the Junior
Subordinated Debentures as and when required.
 
OPTION TO EXTEND INTEREST PAYMENT PERIOD; TAX CONSIDERATIONS
 
  So long as no Debenture Event of Default (as defined herein) shall have
occurred and be continuing, the Corporation will have the right under the
Indenture to defer payments of interest on the Junior Subordinated Debentures
at any time or from time to time for a period not exceeding 20 consecutive
quarterly periods with respect to each Extension Period, provided that no
Extension Period may extend beyond the Stated Maturity Date. As a consequence
of any such deferral, quarterly Distributions on the Capital Securities by the
Trust will be deferred (and the amount of Distributions to which holders of
the Capital Securities are entitled will accumulate additional Distributions
thereon at the applicable Interest Rate (as defined herein), compounded
quarterly, but not exceeding the interest rate then accruing on the Junior
Subordinated Debentures) from the relevant payment date for such Distributions
during any such Extension Period.
 
  Prior to the termination of any Extension Period, the Corporation may
further extend such Extension Period, provided that such extension does not
cause such Extension Period to exceed 20 consecutive quarterly periods or to
extend beyond the Stated Maturity Date. Upon the termination of any Extension
Period and the payment of all interest then accrued and unpaid on the Junior
Subordinated Debentures (together with interest thereon at the applicable
Interest Rate, compounded quarterly, to the extent permitted by applicable
law), the Corporation may elect to begin a new Extension Period, subject to
the above requirements. There is no limitation on the number of times that the
Corporation may elect to begin an Extension Period. See "Description of
Capital Securities--Distributions" and "Description of Junior Subordinated
Debentures--Option to Extend Interest Payment Date."
 
  Should the Corporation exercise its right to defer payments of interest on
the Junior Subordinated Debentures, each holder of Trust Securities will be
required to accrue income (as original issue discount ("OID")) in respect of
the deferred stated interest allocable to its Trust Securities for United
States federal
 
                                       9
<PAGE>
 
income tax purposes, which will be allocated but not distributed to holders of
Trust Securities. As a result, each such holder of Capital Securities will
recognize income for United States federal income tax purposes in advance of
the receipt of cash and will not receive the cash related to such income from
the Trust if the holder disposes of the Capital Securities prior to the record
date for the payment of Distributions thereafter. See "Certain Federal Income
Tax Consequences--Interest Income and Original Issue Discount" and "--Sales of
Capital Securities."
 
  Should the Corporation elect to exercise its right to defer payments of
interest on the Junior Subordinated Debentures in the future, the market price
of the Capital Securities is likely to be affected. A holder that disposes of
its Capital Securities during an Extension Period, therefore, might not
receive the same return on its investment as a holder that continues to hold
its Capital Securities. In addition, merely as a result of the existence of
the Corporation's right to defer payments of interest on the Junior
Subordinated Debentures, the market price of the Capital Securities may be
more volatile than the market prices of other securities on which OID accrues
and that are not subject to such deferrals.
 
SPECIAL EVENT REDEMPTION
 
  Upon the occurrence and continuation of a Special Event (as defined under
"Description of Junior Subordinated Debentures--Special Event Prepayment"),
the Corporation will have the right to prepay the Junior Subordinated
Debentures in whole (but not in part) at the Prepayment Price within 90 days
following the occurrence of such Special Event and therefore cause a mandatory
redemption of the Trust Securities at the Early Redemption Price. The exercise
of such right is subject to the Corporation having received prior approval of
the Federal Reserve to do so if then required under applicable guidelines or
policies of the Federal Reserve. See "Description of Capital Securities--
Redemption."
 
PROPOSED TAX LEGISLATION
 
  On February 6, 1997, as part of the Clinton Administration's Fiscal 1998
Budget Proposal, the Treasury Department proposed legislation (the "Proposed
Legislation") which would, among other things, generally deny corporate
issuers a deduction for interest in respect of certain debt obligations, such
as the Junior Subordinated Debentures, issued on or after the date of "first
committee action," if such debt obligations have a maximum term in excess of
15 years and are not shown as indebtedness on the issuer's applicable
consolidated balance sheet. Since the Proposed Legislation has not yet been
introduced by any member of the 105th Congress, the Proposed Legislation
should not apply to the Junior Subordinated Debentures. It is possible,
however, that the Proposed Legislation or any other legislation enacted by
Congress may give rise to a Tax Event, in which event the Corporation would be
permitted, upon approval of the Federal Reserve if then required under
applicable capital guidelines or policies of the Federal Reserve, to cause a
redemption of the Trust Securities at the Early Redemption Price by electing
to prepay the Junior Subordinated Debentures at the Prepayment Price. See
"Description of Capital Securities--Redemption" and "Description of Junior
Subordinated Debentures--Special Event Prepayment." See also "Certain Federal
Income Tax Consequences--Proposed Tax Legislation."
 
POSSIBLE ADVERSE EFFECT ON MARKET PRICES
 
  There can be no assurance as to the market prices for Capital Securities or
Junior Subordinated Debentures distributed to the holders of Capital
Securities if a termination of the Trust were to occur. Accordingly, the
Capital Securities or the Junior Subordinated Debentures may trade at a
discount from the price that the investor paid to purchase the Capital
Securities offered hereby. Because holders of Capital Securities may receive
Junior Subordinated Debentures in liquidation of the Trust and because
Distributions are otherwise limited to payments on the Junior Subordinated
Debentures, prospective purchasers of Capital Securities are also making an
investment decision with regard to the Junior Subordinated Debentures and
should carefully review all the information regarding the Junior Subordinated
Debentures contained herein. See "Description of Junior Subordinated
Debentures."
 
                                      10
<PAGE>
 
RIGHTS UNDER THE GUARANTEE
 
  The Guarantee is qualified as an indenture under the Trust Indenture Act of
1939, as amended (the "Trust Indenture Act"). The Bank of New York will act as
Guarantee Trustee for the purpose of compliance with the Trust Indenture Act
and will hold the Guarantee for the benefit of the holders of the Capital
Securities. The Bank of New York will also act as Property Trustee and as
Debenture Trustee under the Indenture. The Bank of New York (Delaware) will
act as Delaware Trustee under the Trust Agreement. The Guarantee will
guarantee to the holders of the Capital Securities the following payments, to
the extent not paid by the Trust: (i) any accumulated and unpaid Distributions
required to be paid on the Capital Securities, to the extent that the Trust
has funds on hand legally available therefor at such time, (ii) the applicable
Redemption Price with respect to any Capital Securities called for redemption,
to the extent that the Trust has funds on hand legally available therefor at
such time, and (iii) upon a voluntary or involuntary termination and
liquidation of the Trust (unless the Junior Subordinated Debentures are
distributed to holders of the Capital Securities), the lesser of (a) the
aggregate of the Liquidation Amount and all accumulated and unpaid
Distributions to the date of payment, to the extent that the Trust has funds
on hand legally available therefor at such time and (b) the amount of assets
of the Trust remaining available for distribution to holders of the Capital
Securities upon a termination and liquidation of the Trust. The holders of a
majority in Liquidation Amount of the Capital Securities will have the right
to direct the time, method and place of conducting any proceeding for any
remedy available to the Guarantee Trustee in respect of the Guarantee or to
direct the exercise of any trust power conferred upon the Guarantee Trustee.
Any holder of the Capital Securities may institute a legal proceeding directly
against the Corporation to enforce its rights under the Guarantee without
first instituting a legal proceeding against the Trust, the Guarantee Trustee
or any other person or entity. If the Corporation defaults on its obligation
to pay amounts payable under the Junior Subordinated Debentures, the Trust
will not have sufficient funds for the payment of Distributions or amounts
payable on redemption of the Capital Securities or otherwise, and, in such
event, holders of the Capital Securities will not be able to rely upon the
Guarantee for payment of such amounts. Instead, in the event a Debenture Event
of Default shall have occurred and be continuing and such event is
attributable to the failure of the Corporation to pay principal of (or
premium, if any) or interest on the Junior Subordinated Debentures on the
payment date on which such payment is due and payable, then a holder of
Capital Securities may institute a legal proceeding directly against the
Corporation for enforcement of payment to such holder of the principal of (or
premium, if any) or interest on such Junior Subordinated Debentures having a
principal amount equal to the Liquidation Amount of the Capital Securities of
such holder (a "Direct Action"). Notwithstanding any payments made to a holder
of Capital Securities by the Corporation in connection with a Direct Action,
the Corporation shall remain obligated to pay the principal of (and premium,
if any) and interest on the Junior Subordinated Debentures, and the
Corporation shall be subrogated to the rights of the holder of such Capital
Securities with respect to payments on the Capital Securities to the extent of
any payments made by the Corporation to such holder in any Direct Action.
Except as described herein, holders of Capital Securities will not be able to
exercise directly any other remedy available to the holders of the Junior
Subordinated Debentures or to assert directly any other rights in respect of
the Junior Subordinated Debentures. See "Description of Junior Subordinated
Debentures--Enforcement of Certain Rights by Holders of Capital Securities,"
"Description of Junior Subordinated Debentures--Debenture Events of Default"
and "Description of Guarantee." The Trust Agreement will provide that each
holder of Capital Securities by acceptance thereof agrees to the provisions of
the Indenture.
 
LIMITED VOTING RIGHTS
 
  Holders of Capital Securities will generally have limited voting rights
relating only to the modification of the Capital Securities, the termination
or liquidation of the Trust, and the exercise of the Trust's rights as holder
of Junior Subordinated Debentures. Holders of Capital Securities will not be
entitled to vote to appoint, remove or replace the Property Trustee or the
Delaware Trustee, and such voting rights are vested exclusively in the holder
of the Common Securities except upon the occurrence of certain events
described herein. The Property Trustee, the Administrative Trustees and the
Corporation may amend the Trust Agreement without the consent of holders of
Capital Securities to ensure that the Trust will be classified for United
States federal income tax purposes as a grantor trust even if such action
adversely affects the interests of such holders. See "Description of Capital
Securities--Voting Rights; Amendment of the Trust Agreement" and "--Removal of
Issuer Trustees."
 
                                      11
<PAGE>
 
ABSENCE OF PUBLIC MARKET
 
  The Corporation does not intend to have the Capital Securities listed on the
New York Stock Exchange or any other securities exchange or for quotation
through the NASD Automated Quotation System. There is no existing market for
the Capital Securities and there can be no assurance as to the liquidity of
any market that may develop for the Capital Securities, the ability of the
holders to sell their Capital Securities or at what price holders of the
Capital Securities may be able to sell their Capital Securities, as the case
may be. Future trading prices of the Capital Securities will depend on many
factors including, among other things, prevailing interest rates, the
Corporation's operating results, and the market for similar securities. The
Underwriters have informed the Trust and the Corporation that the Underwriters
intend to make a market in the Capital Securities. However, the Underwriters
are not obligated to do so and any such market making activity may be
terminated at any time without notice to the holders of the Capital
Securities. In addition, such market making activity will be subject to the
limits of the Securities Act.
 
TRADING PRICE
 
  The Capital Securities may trade at a price that does not fully reflect the
value of accrued but unpaid interest with respect to the underlying Junior
Subordinated Debentures. A holder who uses the accrual method of accounting
for tax purposes (and a cash method holder, if the Junior Subordinated
Debentures are deemed to have been issued with OID) and who disposes of its
Capital Securities between record dates for payments of distributions thereon
will be required to include accrued but unpaid interest on the Junior
Subordinated Debentures through the date of disposition in income as ordinary
income (i.e., interest or, possibly, OID), and to add such amount to its
adjusted tax basis in its share of the underlying Junior Subordinated
Debentures deemed disposed of. To the extent the selling price is less than
the holder's adjusted tax basis (which will include all accrued but unpaid
interest), a holder will recognize a capital loss. Subject to certain limited
exceptions, capital losses cannot be applied to offset ordinary income for
United States federal income tax purposes. See "Certain Federal Income Tax
Considerations--Interest Income and Original Issue Discount" and "--Sales of
Capital Securities."
 
                                      12
<PAGE>
 
                            BANKBOSTON CORPORATION
   
  The Corporation is a registered bank holding company organized in 1970 under
Massachusetts law with both national and international operations. The
Corporation, through its subsidiaries and, in certain cases, joint ventures,
is engaged in providing a wide variety of personal, corporate and global
banking services to individuals, corporate and institutional customers,
governments and other financial institutions. The Corporation, together with
its subsidiaries, operates a network of 650 offices across the United States
and more than 100 offices in 24 countries in Latin America, Europe, Asia and
Africa. The major banking subsidiaries of the Corporation include BankBoston,
N.A., Bank of Boston Connecticut and Rhode Island Hospital Trust National
Bank.     
 
  As of March 31, 1997, on a consolidated basis, the Corporation had total
assets of $64.8 billion, total deposits of $42.3 billion and total
stockholders' equity of $4.9 billion. The Corporation's banking subsidiaries
maintained 537 branches in Massachusetts, Rhode Island, Connecticut and New
Hampshire as of March 31, 1997. The Corporation's loans were diversified
geographically, with approximately 76 percent of its total loan volume
consisting of loans and leases made to domestic borrowers and the balance made
overseas. As of March 31, 1997, the Corporation's subsidiaries employed, in
the aggregate, approximately 22,000 full-time equivalent employees in their
domestic and foreign operations.
 
                                USE OF PROCEEDS
 
  The proceeds to the Trust (without giving effect to expenses of the offering
payable by the Corporation) from the offering of the Capital Securities will
be $250,000,000. All of the proceeds from the sale of Capital Securities will
be invested by the Trust in the Junior Subordinated Debentures. The
Corporation intends that the net proceeds from the sale of the Junior
Subordinated Debentures will be used for general corporate purposes, which may
include, but not be limited to, one or more of the following: investments in
and advances to the Corporation's subsidiaries; financing future acquisitions
of financial institutions, as well as banking and other assets; and the
repurchase or redemption of certain of the Corporation's outstanding
securities. The precise amount and timing of the application of such net
proceeds used for such corporate purposes will depend on the funding
requirements and the availability of other funds to the Corporation and its
subsidiaries. Pending such application by the Corporation, such net proceeds
may be temporarily invested in short-term interest bearing securities.
 
  The Capital Securities will be eligible to qualify as Tier 1 capital under
the capital guidelines of the Federal Reserve.
 
                      RATIOS OF EARNINGS TO FIXED CHARGES
 
  The following table sets forth the ratios of earnings to fixed charges of
the Corporation for the respective periods indicated:
 
<TABLE>
<CAPTION>
                                     THREE MONTHS
                                        ENDED       YEARS ENDED DECEMBER 31,
                                      MARCH 31,   ----------------------------
                                         1997     1996  1995  1994  1993  1992
                                     ------------ ----  ----  ----  ----  ----
<S>                                  <C>          <C>   <C>   <C>   <C>   <C>
Ratio of Earnings to Fixed Charges:
  Excluding interest on deposits....     2.31x    2.24x 2.08x 1.90x 2.44x 2.17x
  Including interest on deposits....     1.52     1.44  1.42  1.41  1.38  1.22
</TABLE>
 
                                      13
<PAGE>
 
  For purposes of computing the ratios of earnings to fixed charges, earnings
represent net income before extraordinary items and cumulative effect of
changes in accounting principles plus applicable income taxes and fixed
charges. Fixed charges, excluding interest on deposits, include gross interest
expense (other than on deposits) and the proportion deemed representative of
the interest factor of rent expense, net of income from subleases. Fixed
charges, including gross interest on deposits, include all interest expense
and the proportion deemed representative of the interest factor of rent
expense, net of income from subleases.
 
                                CAPITALIZATION
 
  The following table sets forth the unaudited consolidated capitalization of
the Corporation as of March 31, 1997 and as adjusted to give effect to the
consummation of the offering of the Capital Securities offered hereby. The
following data should be read in conjunction with the financial information
included in the Corporation's 1996 Annual Report on Form 10-K and its
Quarterly Report on Form 10-Q for the quarter ended March 31, 1997, which are
incorporated herein by reference. See "Incorporation of Certain Documents by
Reference."
 
<TABLE>   
<CAPTION>
                                                              MARCH 31, 1997
                                                            -------------------
                                                                        AS
                                                            ACTUAL  ADJUSTED(1)
                                                            ------  -----------
                                                              (IN MILLIONS)
<S>                                                         <C>     <C>
Total long-term debt....................................... $2,516    $2,516
                                                            ------    ------
Obligated mandatory redeemable preferred securities of
 subsidiary trusts holding solely parent debentures(2) ....    500       750
                                                            ------    ------
Stockholders' equity:
  Preferred stock..........................................    508       508
  Common stock-$1.50 par value-300,000,000 shares autho-
   rized, 154,265,361 shares issued .......................    231       231
  Surplus..................................................  1,259     1,259
  Retained earnings........................................  3,038     3,038
  Net unrealized gains on securities available for sale,
   net of tax .............................................     21        21
  Treasury stock, at cost..................................   (187)     (187)
  Cumulative translation adjustments, net of tax...........     (9)       (9)
                                                            ------    ------
    Total stockholders' equity.............................  4,861     4,861
                                                            ------    ------
      Total capitalization................................. $7,877    $8,127
                                                            ======    ======
</TABLE>    
- --------
(1) Reflects the issuance of the Capital Securities offered hereby.
(2) Obligated mandatory redeemable preferred securities of subsidiary trusts
    holding solely parent debentures reflects the Capital Securities offered
    hereby, the BankBoston Capital Trust I Capital Securities and the
    BankBoston Capital Trust II Capital Securities. The Trust, BankBoston
    Capital Trust I and BankBoston Capital Trust II are each subsidiaries of
    the Corporation and holds the Floating Rate Junior Subordinated Deferrable
    Interest Debentures due      , 2027, the 8.25% Junior Subordinated
    Deferrable Interest Debentures due December 15, 2026 and the 7 3/4% Junior
    Subordinated Deferrable Interest Debentures due December 15, 2026,
    respectively, as its sole assets.
 
                                      14
<PAGE>
 
                             SUMMARY FINANCIAL DATA
 
  The summary below should be read in connection with the financial information
included in the Corporation's 1996 Annual Report on Form 10-K and its Quarterly
Report on Form 10-Q for the quarter ended March 31, 1997. Interim unaudited
data for the three months ended March 31, 1997 and 1996 reflect, in the opinion
of management of the Corporation, all adjustments (consisting only of normal
recurring adjustments) necessary for a fair presentation of such data. Results
for the three months ended March 31, 1997 are not necessarily indicative of
results which may be expected for any other interim period or for the year as a
whole.
 
<TABLE>   
<CAPTION>
                           THREE MONTHS
                               ENDED
                           MARCH 31,(1)          YEARS ENDED DECEMBER 31,
                          --------------- ----------------------------------------
                           1997    1996    1996    1995    1994     1993    1992
                          ------- ------- ------- ------- -------  ------- -------
                            (UNAUDITED)   (DOLLARS IN MILLIONS, EXCEPT PER SHARE
                                                           DATA)
<S>                       <C>     <C>     <C>     <C>     <C>      <C>     <C>
INCOME STATEMENT DATA:
Net interest revenue....  $   620 $   566 $ 2,340 $ 2,249 $ 2,037  $ 1,769 $ 1,672
Provision for credit
 losses.................       60      57     231     275     154      107     288
                          ------- ------- ------- ------- -------  ------- -------
Net interest revenue
 after provision for
 credit losses..........      560     509   2,109   1,974   1,883    1,662   1,384
Noninterest income......      330     285   1,344   1,309   1,035      945   1,020
Noninterest expense.....      544     527   2,320   2,076   1,947    2,002   1,949
                          ------- ------- ------- ------- -------  ------- -------
Income before income
 taxes, extraordinary
 items and cumulative
 effect of changes in
 accounting principles..      346     267   1,133   1,207     971      605     455
Provision for income
 taxes..................      139     112     483     529     422      262     190
                          ------- ------- ------- ------- -------  ------- -------
Income before
 extraordinary items and
 cumulative effect of
 changes in accounting
 principles.............      207     155     650     678     549      343     265
Extraordinary items, net
 of tax.................                                       (7)              73
Cumulative effect of
 changes in accounting
 principles, net........                                                24
                          ------- ------- ------- ------- -------  ------- -------
  Net income............  $   207 $   155 $   650 $   678 $   542  $   367 $   338
                          ======= ======= ======= ======= =======  ======= =======
Per common share:
 Income before
  extraordinary items
  and cumulative effect
  of changes in
  accounting principles:
  Primary...............  $  1.29 $   .94 $  3.99 $  4.17 $  3.44  $  2.09 $  1.77
  Fully diluted.........     1.27     .93    3.93    4.09    3.36     2.05    1.73
 Net income:
  Primary...............     1.29     .94    3.99    4.17    3.39     2.26    2.30
  Fully diluted.........     1.27     .93    3.93    4.09    3.31     2.21    2.24
 Book value.............    28.67   27.14   28.89   27.01   23.07    21.13   18.98
 Cash dividends
  declared(2)...........      .44     .37    1.69    1.28     .93      .40     .10
Average number of common
 shares (in thousands):
 Primary................  153,421 154,988 153,529 153,856 148,913  147,033 138,444
 Fully diluted..........  155,592 156,844 156,112 156,768 153,616  152,067 144,044
AVERAGE BALANCE SHEET
 DATA:
Loans and lease financ-
 ing....................  $41,732 $39,179 $40,589 $38,283 $36,017  $32,565 $31,568
Total earning assets....   56,641  52,172  53,410  49,567  47,517   42,880  41,658
Total assets............   63,224  58,587  59,523  55,744  53,389   47,937  46,290
Deposits................   41,899  40,632  41,603  38,406  37,919   37,163  37,643
Notes payable...........    3,316   2,421   2,666   2,142   2,123    1,797   1,252
Stockholders' equity....    4,952   4,706   4,744   4,304   3,766    3,390   2,762
</TABLE>    
- --------
(1) Financial data for 1996 has been restated to give retroactive effect to the
    acquisition of BayBanks, Inc., which was completed in July 1996 and
    accounted for as a pooling of interests.
   
(2)Amounts represent the historical cash dividends of the Corporation.     
 
                                       15
<PAGE>
 
                         BANKBOSTON CAPITAL TRUST III
 
  The Trust is a statutory business trust formed under Delaware law pursuant
to (i) the Trust Agreement executed by the Corporation, as Sponsor, The Bank
of New York, as Property Trustee, The Bank of New York (Delaware), as Delaware
Trustee, and the Administrative Trustees named therein, and (ii) the filing of
a certificate of trust with the Delaware Secretary of State on May 14, 1997.
The Trust exists for the exclusive purposes of (i) issuing and selling the
Trust Securities, (ii) using the proceeds from the sale of Trust Securities to
acquire the Junior Subordinated Debentures and, (iii) engaging in only those
other activities necessary, advisable or incidental thereto (such as
registering the transfer of the Trust Securities). The Junior Subordinated
Debentures will be the sole assets of the Trust and, accordingly, payments
under the Junior Subordinated Debentures will be the sole revenues of the
Trust. All of the Common Securities will be owned by the Corporation. The
Common Securities will rank pari passu, and payments will be made thereon pro
rata, with the Capital Securities, except that upon the occurrence and
continuance of an event of default under the Trust Agreement resulting from a
Debenture Event of Default, the rights of the Corporation as holder of the
Common Securities to payments in respect of Distributions and payments upon
liquidation, redemption or otherwise will be subordinated to the rights of the
holders of the Capital Securities. See "Description of Capital Securities--
Subordination of Common Securities." The Corporation will acquire Common
Securities in a Liquidation Amount equal to at least 3% of the total capital
of the Trust. The Trust has a term of 31 years, but may terminate earlier as
provided in the Trust Agreement. The Trust's business and affairs are
conducted by its trustees, each appointed by the Corporation as holder of the
Common Securities. The trustees for the Trust will be The Bank of New York, as
the Property Trustee (the "Property Trustee"), The Bank of New York
(Delaware), as the Delaware Trustee (the "Delaware Trustee"), and three
individual trustees (the "Administrative Trustees") who are employees or
officers of or affiliated with the Corporation (collectively, the "Issuer
Trustees"). The Bank of New York, as Property Trustee, will act as sole
indenture trustee under the Trust Agreement. The Bank of New York will also
act as indenture trustee under the Guarantee and the Indenture. See
"Description of Guarantee" and "Description of Junior Subordinated
Debentures." The holder of the Common Securities of the Trust or, if an Event
of Default under the Trust Agreement has occurred and is continuing, the
holders of a majority in Liquidation Amount of the Capital Securities will be
entitled to appoint, remove or replace the Property Trustee and/or the
Delaware Trustee. In no event will the holders of the Capital Securities have
the right to vote to appoint, remove or replace the Administrative Trustees;
such voting rights will be vested exclusively in the holder of the Common
Securities. The duties and obligations of each Issuer Trustee are governed by
the Trust Agreement. The Corporation will pay all fees, expenses, debts and
obligations (other than with respect to the payment of principal, interest and
premium, if any, on the Trust Securities) related to the Trust and the
offering of the Capital Securities and will pay, directly or indirectly, all
ongoing costs, expenses and liabilities of the Trust (other than payment of
principal, interest and premium, if any, on the Trust Securities). The
principal executive office of the Trust is c/o BankBoston, P.O. Box 2016,
Boston, Massachusetts 02106-2016.
 
                                      16
<PAGE>
 
                       DESCRIPTION OF CAPITAL SECURITIES
 
  The Capital Securities will represent preferred beneficial interests in the
Trust and the holders thereof will be entitled to a preference over the Common
Securities in certain circumstances with respect to Distributions and amounts
payable on redemption of the Trust Securities or liquidation of the Trust. See
"--Subordination of Common Securities." The Trust Agreement is qualified under
the Trust Indenture Act and is subject to and governed by the Trust Indenture
Act. This summary of certain terms and provisions of the Capital Securities,
the Common Securities and the Trust Agreement does not purport to be complete
and is subject to, and is qualified in its entirety by reference to, all the
provisions of the Trust Agreement, including the definitions therein of
certain terms, and those made a part of the Trust Agreement by the Trust
Indenture Act.
 
GENERAL
 
  The Capital Securities will be limited to $250,000,000 aggregate Liquidation
Amount at any one time outstanding. The Capital Securities will rank pari
passu, and payments will be made thereon pro rata, with the Common Securities
except as described under "--Subordination of Common Securities." Legal title
to the Junior Subordinated Debentures will be held by the Property Trustee in
trust for the benefit of the holders of the Capital Securities and Common
Securities. The Guarantee will not guarantee payment of Distributions or
amounts payable on redemption of the Capital Securities or liquidation of the
Trust when the Trust does not have funds on hand legally available for such
payments. See "Description of Guarantee."
 
DISTRIBUTIONS
 
  Distributions on the Capital Securities will be cumulative, will accumulate
from            , 1997 and will be payable quarterly in arrears on
           ,          ,           and            of each year, commencing
           , 1997 (each, a "Distribution Date"), at a rate per annum reset
quarterly equal to LIBOR plus    % (the "Distribution Rate") on the
Liquidation Amount of $1,000, to the holders of the Capital Securities on the
relevant record dates. The record dates will be the      day of the month in
which the relevant Distribution Date falls. The amount of Distributions
payable for any period will be computed on the basis of the actual number of
days in such period and a year of 360 days. In the event that any Distribution
Date is not a Business Day (as defined below), then such Distribution Date
shall be postponed to the next succeeding Business Day (and without any
interest or other payment in respect of any such delay), except that if such
Business Day falls in the next succeeding calendar month then such
Distribution Date shall be the immediately preceding Business Day. If the
Stated Maturity Date or earlier prepayment date for the Junior Subordinated
Debentures falls on a day that is not a Business Day, payment of any
Distributions payable on such date will be made on the next succeeding
Business Day, and no interest or other payment will accumulate for the period
from and after the Stated Maturity Date or such prepayment date, as the case
may be. A "Business Day" shall mean any day other than a Saturday or a Sunday,
or a day on which banking institutions in The City of New York or Boston,
Massachusetts are authorized or required by law or executive order to remain
closed.
 
  So long as no Debenture Event of Default shall have occurred and be
continuing, the Corporation will have the right under the Indenture to defer
the payment of interest on the Junior Subordinated Debentures at any time or
from time to time for a period not exceeding 20 consecutive quarterly periods
with respect to each Extension Period, provided that no Extension Period may
extend beyond the Stated Maturity Date. Upon any such election, quarterly
Distributions on the Capital Securities will be deferred by the Trust during
any such Extension Period. Distributions to which holders of the Capital
Securities are entitled during any such Extension Period will accumulate
additional Distributions thereon at the applicable periodic Distribution Rate
compounded quarterly from the relevant Distribution Date, but not exceeding
the interest rate then accruing on the Junior Subordinated Debentures. The
term "Distributions," as used herein, shall include any such additional
Distributions.
 
  Prior to the termination of any Extension Period, the Corporation may
further extend such Extension Period, provided that such extension does not
cause such Extension Period to exceed 20 consecutive quarterly periods or
 
                                      17
<PAGE>
 
to extend beyond the Stated Maturity Date. Upon the termination of any such
Extension Period and the payment of all amounts then due, and subject to the
foregoing limitations, the Corporation may elect to begin a new Extension
Period. The Corporation must give the Property Trustee, the Administrative
Trustees and the Debenture Trustee notice of its election of any such
Extension Period at least five Business Days prior to the earlier of (i) the
date the Distributions on the Capital Securities would have been payable
except for the election to begin such Extension Period or (ii) the date the
Administrative Trustees are required to give notice to any securities exchange
or to holders of such Capital Securities of the record date or the date such
Distributions are payable but in any event not less than five Business Days
prior to such record date. There is no limitation on the number of times that
the Corporation may elect to begin an Extension Period. See "Description of
Junior Subordinated Debentures--Option to Extend Interest Payment Period" and
"Certain Federal Income Tax Consequences--Interest Income and Original Issue
Discount."
 
  During any Extension Period, the Corporation may not (i) declare or pay any
dividends or distributions on, or redeem, purchase, acquire, or make a
liquidation payment with respect to, any of the Corporation's capital stock
(which includes common and preferred stock) or (ii) make any payment of
principal of or premium, if any, or interest on or repay, repurchase or redeem
any debt securities of the Corporation (including Other Debentures) that rank
pari passu with or junior in right of payment to the Junior Subordinated
Debentures or (iii) make any guarantee payments with respect to any guarantee
by the Corporation of the debt securities of any subsidiary of the Corporation
(including Other Guarantees) if such guarantee ranks pari passu with or junior
in right of payment to the Junior Subordinated Debentures (other than (a)
dividends or distributions in shares of, or options, warrants or rights to
subscribe for or purchase shares of, common stock of the Corporation, (b) any
declaration of a dividend in connection with the implementation of a
stockholders' rights plan, or the issuance of stock under any such plan in the
future, or the redemption or repurchase of any such rights pursuant thereto,
(c) payments under the Guarantee, (d) as a result of a reclassification of the
Corporation's capital stock or the exchange or conversion of one class, or
series of the Corporation's capital stock for another class or series of the
Corporation's capital stock, (e) the purchase of fractional interests in
shares of the Corporation's capital stock pursuant to the conversion or
exchange provisions of such capital stock or the security being converted or
exchanged, and (f) purchases of common stock related to the issuance of common
stock or rights under any of the Corporation's benefit plans for its
directors, officers or employees or any of the Corporation's dividend
reinvestment plans).
 
  Although the Corporation may in the future exercise its option to defer
payments of interest on the Junior Subordinated Debentures, the Corporation
has no such current intention.
 
  The revenue of the Trust available for distribution to holders of the
Capital Securities will be limited to payments under the Junior Subordinated
Debentures in which the Trust will invest the proceeds from the issuance and
sale of the Trust Securities. See "Description of Junior Subordinated
Debentures--General." If the Corporation does not make interest payments on
the Junior Subordinated Debentures, the Property Trustee will not have funds
available to pay Distributions on the Capital Securities. The payment of
Distributions on the Capital Securities (if and to the extent the Trust has
funds on hand legally available for the payment of such Distributions) will be
guaranteed by the Corporation on a limited basis as set forth herein under
"Description of Guarantee."
 
DISTRIBUTION RATE
   
  LIBOR, the Distribution period and the amount of Distributions payable in
respect of each Distribution period will be calculated by The Bank of New
York, as Calculation Agent, in the same manner as LIBOR, the interest period
and the interest payable in respect of each interest period for the Junior
Subordinated Debentures, as described under "Description of Junior
Subordinated Debentures--Interest Rate."     
 
                                      18
<PAGE>
 
REDEMPTION
 
  Upon the repayment on the Stated Maturity Date or prepayment prior to the
Stated Maturity Date of the Junior Subordinated Debentures, the proceeds from
such repayment or prepayment shall be applied by the Property Trustee to
redeem a Like Amount (as defined below) of the Trust Securities, upon not less
than 30 nor more than 60 days' notice of a date of redemption (the "Redemption
Date"), at the applicable Redemption Price, which shall be equal to (i) in the
case of the repayment of the Junior Subordinated Debentures on the Stated
Maturity Date, the Maturity Redemption Price (equal to the principal of, and
accrued interest on, the Junior Subordinated Debentures), (ii) in the case of
the optional prepayment of the Junior Subordinated Debentures upon the
occurrence and continuation of a Special Event, the Early Redemption Price
(equal to the Prepayment Price in respect of the Junior Subordinated
Debentures) and (iii) in the case of the optional prepayment of the Junior
Subordinated Debentures other than as contemplated in clause (ii) above, the
Early Redemption Price (equal to the Prepayment Price in respect of the Junior
Subordinated Debentures). See "Description of Junior Subordinated Debentures--
Optional Prepayment" and "--Special Event Prepayment."
 
  "Like Amount" means (i) with respect to a redemption of the Trust
Securities, Trust Securities having a Liquidation Amount equal to the
principal amount of Junior Subordinated Debentures to be paid in accordance
with their terms and (ii) with respect to a distribution of Junior
Subordinated Debentures upon the liquidation of the Trust, Junior Subordinated
Debentures having a principal amount equal to the Liquidation Amount of the
Trust Securities of the holder to whom such Junior Subordinated Debentures are
distributed.
 
  The Corporation will have the option to prepay the Junior Subordinated
Debentures, (i) in whole or in part, on or after           , 2007, and (ii) in
whole but not in part, at any time, upon the occurrence of a Special Event, in
each case at the Prepayment Price and subject to receipt of prior approval by
the Federal Reserve if then required under applicable capital guidelines or
policies of the Federal Reserve.
 
LIQUIDATION OF THE TRUST AND DISTRIBUTION OF JUNIOR SUBORDINATED DEBENTURES
 
  The Corporation will have the right at any time to terminate the Trust and
cause the Junior Subordinated Debentures to be distributed to the holders of
the Trust Securities in liquidation of the Trust. Such right is subject to (i)
the Corporation having received an opinion of counsel to the effect that such
distribution will not be a taxable event to holders of Capital Securities and
(ii) the prior approval of the Federal Reserve if then required under
applicable capital guidelines or policies of the Federal Reserve.
 
  The Trust shall automatically terminate upon the first to occur of: (i)
certain events of bankruptcy, dissolution or liquidation of the Corporation;
(ii) the distribution of a Like Amount of the Junior Subordinated Debentures
to the holders of the Trust Securities, if the Corporation, as Sponsor, has
given written direction to the Property Trustee to terminate the Trust (which
direction is optional and, except as described above, wholly within the
discretion of the Corporation, as Depositor); (iii) redemption of all of the
Trust Securities as described under "--Redemption"; (iv) expiration of the
term of the Trust; and (v) the entry of an order for the dissolution of the
Trust by a court of competent jurisdiction.
 
  If a termination occurs as described in clause (i), (ii), (iv), or (v)
above, the Trust shall be liquidated by the Issuer Trustees as expeditiously
as the Issuer Trustees determine to be possible by distributing, after
satisfaction of liabilities to creditors of the Trust as provided by
applicable law, to the holders of the Trust Securities a Like Amount of the
Junior Subordinated Debentures, unless such distribution is determined by the
Property Trustee not to be practicable, in which event such holders will be
entitled to receive out of the assets of the Trust legally available for
distribution to holders, after satisfaction of liabilities to creditors of the
Trust as provided by applicable law, an amount equal to the aggregate of the
Liquidation Amount of $1,000 per Trust Security plus accumulated and unpaid
Distributions thereon to the date of payment (such amount being the
"Liquidation Distribution"). If such Liquidation Distribution can be paid only
in part because the Trust has insufficient assets on hand legally available to
pay in full the aggregate Liquidation Distribution, then the amounts payable
directly by the Trust on the Capital Securities and the Common Securities
shall be paid on a pro rata basis, except that if
 
                                      19
<PAGE>
 
a Debenture Event of Default has occurred and is continuing, the Capital
Securities shall have a priority over the Common Securities. See "--
Subordination of Common Securities." If an early termination occurs as
described in clause (v) above, the Junior Subordinated Debentures will be
subject to optional prepayment, in whole but not in part, on or after
        , 2007.
 
  If the Corporation elects not to prepay the Junior Subordinated Debentures
prior to maturity in accordance with their terms and either elects not to or
is unable to liquidate the Trust and distribute the Junior Subordinated
Debentures to holders of the Trust Securities, the Trust Securities will
remain outstanding until the repayment of the Junior Subordinated Debentures
on the Stated Maturity Date.
 
  After the liquidation date is fixed for any distribution of Junior
Subordinated Debentures to holders of the Trust Securities, (i) the Trust
Securities will no longer be deemed to be outstanding, (ii) each registered
global certificate, if any, representing Trust Securities and held by The
Depository Trust Company ("DTC" or the "Depositary") or its nominee will be
exchanged for a registered global certificate or certificates representing the
Junior Subordinated Debentures to be delivered upon such distribution and
(iii) any certificates representing Trust Securities not held by DTC or its
nominee will be deemed to represent Junior Subordinated Debentures having a
principal amount equal to the Liquidation Amount of such Trust Securities, and
bearing accrued and unpaid interest in an amount equal to the accumulated and
unpaid Distributions on such Trust Securities until such certificates are
presented to the Administrative Trustees or their agent for cancellation,
whereupon the Corporation will issue to such holder, and the Debenture Trustee
will authenticate, a certificate representing such Junior Subordinated
Debentures.
 
  There can be no assurance as to the market prices for the Capital Securities
or the Junior Subordinated Debentures that may be distributed in exchange for
the Trust Securities if a dissolution and liquidation of the Trust were to
occur. Accordingly, the Capital Securities that an investor may purchase, or
the Junior Subordinated Debentures that the investor may receive on
dissolution and liquidation of the Trust, may trade at a discount to the price
that the investor paid to purchase the Capital Securities offered hereby.
 
REDEMPTION PROCEDURES
 
  If applicable, Trust Securities shall be redeemed at the applicable
Redemption Price with the proceeds from the contemporaneous repayment or
prepayment of the Junior Subordinated Debentures. Any redemption of Trust
Securities shall be made and the applicable Redemption Price shall be payable
on the Redemption Date only to the extent that the Trust has funds legally
available for the payment of such applicable Redemption Price. See also "--
Subordination of Common Securities."
 
  If the Trust gives a notice of redemption in respect of the Capital
Securities, then, by 12:00 noon, New York City time, on the Redemption Date,
to the extent funds are legally available, with respect to the Capital
Securities held by DTC or its nominees, the Property Trustee will deposit
irrevocably with DTC funds sufficient to pay the applicable Redemption Price.
See "--Form, Denomination, Book-Entry Procedures and Transfer." With respect
to the Capital Securities held in certificated form, the Property Trustee, to
the extent funds are legally available, will irrevocably deposit with the
paying agent for the Capital Securities funds sufficient to pay the applicable
Redemption Price and will give such paying agent irrevocable instructions and
authority to pay the applicable Redemption Price to the holders thereof upon
surrender of their certificates evidencing the Capital Securities. See "--
Payment and Paying Agency." Notwithstanding the foregoing, Distributions
payable on or prior to the Redemption Date shall be payable to the holders of
such Capital Securities on the relevant record dates for the related
Distribution Dates. If notice of redemption shall have been given and funds
deposited as required, then upon the date of such deposit, all rights of the
holders of the Capital Securities will cease, except the right of the holders
of the Capital Securities to receive the applicable Redemption Price, but
without interest on such Redemption Price, and the Capital Securities will
cease to be outstanding. In the event that payment of the applicable
Redemption Price is improperly withheld or refused and not paid either by the
Trust or by the Corporation pursuant to the Guarantee as described under
"Description of Guarantee," Distributions on Capital Securities will continue
to accumulate at the then applicable rate, from the Redemption Date originally
established by the Trust to the date such applicable Redemption Price is
actually paid, in which case the actual payment date will be the Redemption
Date for purposes of calculating the applicable Redemption Price.
 
                                      20
<PAGE>
 
  Subject to applicable law (including, without limitation, United States
federal securities law), the Corporation or its subsidiaries may at any time
and from time to time purchase outstanding Capital Securities by tender, in
the open market or by private agreement.
 
  Notice of any redemption will be mailed at least 30 days but not more than
60 days prior to the Redemption Date to each holder of Trust Securities at its
registered address. Unless the Corporation defaults in payment of the
applicable Prepayment Price on, or in the repayment of, the Junior
Subordinated Debentures, on and after the Redemption Date Distributions will
cease to accrue on the Trust Securities called for redemption.
 
SUBORDINATION OF COMMON SECURITIES
 
  Payment of Distributions on, and the Redemption Price of, the Capital
Securities and Common Securities, as applicable, shall be made pro rata based
on the Liquidation Amount of the Capital Securities and Common Securities;
provided, however, that if on any Distribution Date or Redemption Date a
Debenture Event of Default shall have occurred and be continuing, no payment
of any Distribution on, or applicable Redemption Price of, any of the Common
Securities, and no other payment on account of the redemption, liquidation or
other acquisition of the Common Securities, shall be made unless payment in
full in cash of all accumulated and unpaid Distributions on all of the
outstanding Capital Securities for all Distribution periods terminating on or
prior thereto, or in the case of payment of the applicable Redemption Price
the full amount of such Redemption Price, shall have been made or provided
for, and all funds available to the Property Trustee shall first be applied to
the payment in full in cash of all Distributions on, or Redemption Price of,
the Capital Securities then due and payable.
 
  In the case of any Event of Default, the Corporation as holder of the Common
Securities will be deemed to have waived any right to act with respect to such
Event of Default until the effect of such Event of Default shall have been
cured, waived or otherwise eliminated. Until any such Event of Default has
been so cured, waived or otherwise eliminated, the Property Trustee shall act
solely on behalf of the holders of the Capital Securities and not on behalf of
the Corporation as holder of the Common Securities, and only the holders of
the Capital Securities will have the right to direct the Property Trustee to
act on their behalf.
 
EVENTS OF DEFAULT; NOTICE
 
  The occurrence of a Debenture Event of Default (see "Description of Junior
Subordinated Debentures--Debenture Events of Default") constitutes an "Event
of Default" under the Trust Agreement.
 
  Within five Business Days after the occurrence of any Event of Default
actually known to the Property Trustee, the Property Trustee shall transmit
notice of such Event of Default to the holders of the Capital Securities, the
Administrative Trustees and the Corporation, as Sponsor, unless such Event of
Default shall have been cured or waived. The Corporation, as Sponsor, and the
Administrative Trustees are required to file annually with the Property
Trustee a certificate as to whether or not they are in compliance with all the
conditions and covenants applicable to them under the Trust Agreement.
 
  If a Debenture Event of Default has occurred and is continuing, the Capital
Securities shall have a preference over the Common Securities as described
under "--Liquidation of the Trust and Distribution of Junior Subordinated
Debentures" and "--Subordination of Common Securities."
 
REMOVAL OF ISSUER TRUSTEES
 
  Unless a Debenture Event of Default shall have occurred and be continuing,
any Issuer Trustee may be removed at any time by the holder of the Common
Securities. If a Debenture Event of Default has occurred and is continuing,
the Property Trustee and the Delaware Trustee may be removed at such time by
the holders of a majority in Liquidation Amount of the outstanding Capital
Securities. In no event will the holders of the Capital Securities have the
right to vote to appoint, remove or replace the Administrative Trustees, which
voting rights are vested exclusively in the Corporation as the holder of the
Common Securities. No resignation or removal of an Issuer Trustee and no
appointment of a successor trustee shall be effective until the acceptance of
appointment by the successor trustee in accordance with the provisions of the
Trust Agreement.
 
                                      21
<PAGE>
 
MERGER OR CONSOLIDATION OF ISSUER TRUSTEES
 
  Any corporation into which the Property Trustee, the Delaware Trustee or any
Administrative Trustee that is not a natural person may be merged or converted
or with which it may be consolidated, or any corporation resulting from any
merger, conversion or consolidation to which such Issuer Trustee shall be a
party, or any corporation succeeding to all or substantially all the corporate
trust business of such Issuer Trustee, shall be the successor of such Issuer
Trustee under the Trust Agreement, provided such corporation shall be
otherwise qualified and eligible.
 
MERGERS, CONSOLIDATIONS, AMALGAMATIONS OR REPLACEMENTS OF THE TRUST
 
  The Trust may not merge with or into, consolidate, amalgamate, or be
replaced by, or convey, transfer or lease its properties and assets as an
entirety or substantially as an entirety to any corporation or other Person,
except as described below. The Trust may, at the request of the Corporation,
as Sponsor, with the consent of the Administrative Trustees but without the
consent of the holders of the Capital Securities, merge with or into,
consolidate, amalgamate, or be replaced by or convey, transfer or lease its
properties and assets as an entirety or substantially as an entirety to a
trust organized as such under the laws of any State; provided, that (i) such
successor entity either (a) expressly assumes all of the obligations of the
Trust with respect to the Capital Securities or (b) substitutes for the
Capital Securities other securities having substantially the same terms as the
Capital Securities (the "Successor Securities") so long as the Successor
Securities rank the same as the Capital Securities rank in priority with
respect to distributions and payments upon liquidation, redemption and
otherwise, (ii) the Corporation expressly appoints a trustee of such successor
entity possessing the same powers and duties as the Property Trustee with
respect to the Junior Subordinated Debentures, (iii) the Successor Securities
are listed, or any Successor Securities will be listed upon notification of
issuance, on any national securities exchange or other organization on which
the Capital Securities are then listed, if any, (iv) such merger,
consolidation, amalgamation, replacement, conveyance, transfer or lease does
not cause the Capital Securities (including any Successor Securities) to be
downgraded by any nationally recognized statistical rating organization, (v)
such merger, consolidation, amalgamation, replacement, conveyance, transfer or
lease does not adversely affect the rights, preferences and privileges of the
holders of the Capital Securities (including any Successor Securities) in any
material respect, (vi) such successor entity has a purpose identical to that
of the Trust, (vii) prior to such merger, consolidation, amalgamation,
replacement, conveyance, transfer or lease, the Corporation has received an
opinion from independent counsel to the Trust experienced in such matters to
the effect that (a) such merger, consolidation, amalgamation, replacement,
conveyance, transfer or lease does not adversely affect the rights,
preferences and privileges of the holders of the Capital Securities (including
any Successor Securities) in any material respect, and (b) following such
merger, consolidation, amalgamation, replacement, conveyance, transfer or
lease, neither the Trust nor such successor entity will be required to
register as an investment company under the Investment Company Act of 1940, as
amended (the "Investment Company Act"), and (viii) the Corporation or any
permitted successor or assignee owns all of the common securities of such
successor entity and guarantees the obligations of such successor entity under
the Successor Securities at least to the extent provided by the Guarantee.
Notwithstanding the foregoing, the Trust shall not, except with the consent of
holders of 100% in Liquidation Amount of the Trust Securities, consolidate,
amalgamate, merge with or into, or be replaced by or convey, transfer or lease
its properties and assets as an entirety or substantially as an entirety to
any other entity or permit any other entity to consolidate, amalgamate, merge
with or into, or replace it if such consolidation, amalgamation, merger,
replacement, conveyance, transfer or lease would cause the Trust or the
successor entity not to be classified as a grantor trust for United States
federal income tax purposes.
 
VOTING RIGHTS; AMENDMENT OF THE TRUST AGREEMENT
 
  Except as provided below and under "--Mergers, Consolidations, Amalgamations
or Replacements of the Trust" and "Description of Guarantee--Amendments and
Assignment" and as otherwise required by law and the Trust Agreement, the
holders of the Capital Securities will have no voting rights.
 
                                      22
<PAGE>
 
  The Trust Agreement may be amended from time to time by the Corporation, the
Property Trustee and the Administrative Trustees, without the consent of the
holders of the Trust Securities (i) to cure any ambiguity, correct or
supplement any provisions in the Trust Agreement that may be inconsistent with
any other provision, or to make any other provisions with respect to matters
or questions arising under the Trust Agreement, which shall not be
inconsistent with the other provisions of the Trust Agreement, or (ii) to
modify, eliminate or add to any provisions of the Trust Agreement to such
extent as shall be necessary to ensure that the Trust will be classified for
United States federal income tax purposes as a grantor trust at all times that
any Trust Securities are outstanding or to ensure that the Trust will not be
required to register as an "investment company" under the Investment Company
Act; provided, however, that in the case of clause (i), such action shall not
adversely affect in any material respect the interests of the holders of the
Trust Securities, and any amendments of the Trust Agreement shall become
effective when notice thereof is given to the holders of the Trust Securities.
The Trust Agreement may be amended by the Issuer Trustees and the Corporation
(i) with the consent of holders of a majority in Liquidation Amount of the
outstanding Trust Securities, and (ii) upon receipt by the Issuer Trustees of
an opinion of counsel to the effect that such amendment or the exercise of any
power granted to the Issuer Trustees in accordance with such amendment will
not affect the Trust's status as a grantor trust for United States federal
income tax purposes or the Trust's exemption from status as an "investment
company" under the Investment Company Act, provided that, without the consent
of each holder of Trust Securities, the Trust Agreement may not be amended to
(i) change the amount or timing of any Distribution on the Trust Securities or
otherwise adversely affect the amount of any Distribution required to be made
in respect of the Trust Securities as of a specified date or (ii) restrict the
right of a holder of Trust Securities to institute suit for the enforcement of
any such payment on or after such date.
 
  So long as any Junior Subordinated Debentures are held by the Property
Trustee, the Issuer Trustees shall not (i) direct the time, method and place
of conducting any proceeding for any remedy available to the Debenture
Trustee, or executing any trust or power conferred on such Property Trustee
with respect to the Junior Subordinated Debentures, (ii) waive certain past
defaults under the Indenture, (iii) exercise any right to rescind or annul a
declaration of acceleration of the maturity of the principal of the Junior
Subordinated Debentures or (iv) consent to any amendment, modification or
termination of the Indenture or the Junior Subordinated Debentures, where such
consent shall be required, without, in each case, obtaining the prior approval
of the holders of a majority in Liquidation Amount of all outstanding Capital
Securities; provided, however, that where a consent under the Indenture would
require the consent of each holder of Junior Subordinated Debentures affected
thereby, no such consent shall be given by the Property Trustee without the
prior approval of each holder of the Capital Securities. The Issuer Trustees
shall not revoke any action previously authorized or approved by a vote of the
holders of the Capital Securities except by subsequent vote of such holders.
The Property Trustee shall notify each holder of Capital Securities of any
notice of default with respect to the Junior Subordinated Debentures. In
addition to obtaining the foregoing approvals of such holders of the Capital
Securities, prior to taking any of the foregoing actions, the Issuer Trustees
shall obtain an opinion of counsel experienced in such matters to the effect
that the Trust will not be classified as an association taxable as a
corporation for United States federal income tax purposes on account of such
action.
 
  Any required approval of holders of Capital Securities may be given at a
meeting of such holders convened for such purpose or pursuant to written
consent. The Property Trustee will cause a notice of any meeting at which
holders of Capital Securities are entitled to vote, or of any matter upon
which action by written consent of such holders is to be taken, to be given to
each holder of record of Capital Securities in the manner set forth in the
Trust Agreement.
 
  No vote or consent of the holders of Capital Securities will be required for
the Trust to redeem and cancel the Capital Securities in accordance with the
Trust Agreement.
 
  Notwithstanding that holders of the Capital Securities are entitled to vote
or consent under any of the circumstances described above, any of the Capital
Securities that are owned by the Corporation, the Issuer Trustees or any
affiliate of the Corporation or any Issuer Trustees, shall, for purposes of
such vote or consent, be treated as if they were not outstanding.
 
                                      23
<PAGE>
 
FORM, DENOMINATION, BOOK-ENTRY PROCEDURES AND TRANSFER
 
  The Capital Securities initially will be represented by one or more Capital
Securities in registered, global form (collectively, the "Global Capital
Securities"). The Global Capital Securities will be deposited upon issuance
with the Property Trustee as custodian for DTC, in The City of New York, and
registered in the name of DTC or its nominee, in each case for credit to an
account of a direct or indirect participant in DTC as described below. Except
as set forth below, the Global Capital Securities may be transferred, in whole
and not in part, only to another nominee of DTC or to a successor of DTC or
its nominee. Beneficial interests in the Global Capital Securities may not be
exchanged for Capital Securities in certificated form except in the limited
circumstances described below. See "--Exchange of Book-Entry Capital
Securities for Certificated Capital Securities".
 
  Transfer of beneficial interests in the Global Capital Securities will be
subject to the applicable rules and procedures of DTC and its direct or
indirect participants, which may change from time to time.
 
 Depositary Procedures
 
  DTC has advised the Trust and the Corporation that DTC is a limited-purpose
trust company created to hold securities for its participating organizations
(collectively, the "Participants") and to facilitate the clearance and
settlement of transactions in those securities between Participants through
electronic book-entry changes in accounts of its Participants. The
Participants include securities brokers and dealers (including the
Underwriters), banks, trust companies, clearing corporations and certain other
organizations. Access to DTC's system is also available to other entities such
as banks, brokers, dealers and trust companies that clear through or maintain
a custodial relationship with a Participant, either directly or indirectly
(collectively, the "Indirect Participants"). Persons who are not Participants
may beneficially own securities held by or on behalf of DTC only through the
Participants or the Indirect Participants. The ownership interest and transfer
of ownership interest of each actual purchaser of each security held by or on
behalf of DTC are recorded on the records of the Participants and Indirect
Participants.
 
  DTC has also advised the Trust and the Corporation that, pursuant to
procedures established by it, (i) upon deposit of the Global Capital
Securities, DTC will credit the accounts of Participants designated by the
Underwriters with portions of the Liquidation Amount of the Global Capital
Securities and (ii) ownership of such interests in the Global Capital
Securities will be shown on, and the transfer of ownership thereof will be
effected only through, records maintained by DTC (with respect to the
Participants) or by the Participants and the Indirect Participants (with
respect to other owners of beneficial interests in the Global Capital
Securities).
 
  Except as described below, owners of beneficial interests in the Global
Capital Securities will not have Capital Securities registered in their name,
will not receive physical delivery of Capital Securities in certificated form
and will not be considered the registered owners or holders thereof under the
Trust Agreement for any purpose.
 
  Payments in respect of the Global Capital Security registered in the name of
DTC or its nominee will be payable by the Property Trustee to DTC in its
capacity as the registered holder under the Trust Agreement. Under the terms
of the Trust Agreement, the Property Trustee will treat the persons in whose
names the Capital Securities, including the Global Capital Securities, are
registered as the owners thereof for the purpose of receiving such payments
and for any and all other purposes whatsoever. Consequently, neither the
Property Trustee nor any agent thereof has or will have any responsibility or
liability for (i) any aspect of DTC's records or any Participant's or Indirect
Participant's records relating to or payments made on account of beneficial
interests in the Global Capital Securities, or for maintaining, supervising or
reviewing any of DTC's records or any Participant's or Indirect Participant's
records relating to the beneficial interests in the Global Capital Securities
or (ii) any other matter relating to the actions and practices of DTC or any
of its Participants or Indirect Participants. DTC has advised the Trust and
the Corporation that its current practice, upon receipt of any payment in
respect of securities such as the Capital Securities, is to credit the
accounts of the relevant Participants with
 
                                      24
<PAGE>
 
the payment on the payment date, in amounts proportionate to their respective
holdings in Liquidation Amount of beneficial interests in the relevant
security as shown on the records of DTC unless DTC has reason to believe it
will not receive payment on such payment date. Payments by the Participants
and the Indirect Participants to the beneficial owners of Capital Securities
will be governed by standing instructions and customary practices and will be
the responsibility of the Participants or the Indirect Participants and will
not be the responsibility of DTC, the Property Trustee, the Trust or the
Corporation. Neither the Trust or the Corporation nor the Property Trustee
will be liable for any delay by DTC or any of its Participants in identifying
the beneficial owners of the Capital Securities, and the Trust or the
Corporation and the Property Trustee may conclusively rely on and will be
protected in relying on instructions from DTC or its nominee for all purposes.
 
  Beneficial interests in the Global Capital Securities will trade in DTC's
Same-Day Funds Settlement System and secondary market trading activity in such
interests will therefore settle in immediately available funds, subject in all
cases to the rules and procedures of DTC and its participants.
 
  DTC has advised the Trust and the Corporation that it will take any action
permitted to be taken by a holder of Capital Securities only at the direction
of one or more Participants to whose account with DTC interests in the Global
Capital Securities are credited and only in respect of such portion of the
Liquidation Amount of the Capital Securities as to which such Participant or
Participants has or have given such direction. However, if there is an Event
of Default under the Trust Agreement, DTC reserves the right to exchange the
Global Capital Securities for legended Capital Securities in certificated form
and to distribute such Capital Securities to its Participants.
 
  The information in this section concerning DTC and its book-entry system has
been obtained from sources that the Trust and the Corporation believe to be
reliable, but neither the Trust nor the Corporation takes responsibility for
the accuracy thereof.
 
 Exchange of Book-Entry Capital Securities for Certificated Capital Securities
 
  A Global Capital Security is exchangeable for Capital Securities in
registered certificated form if (i) DTC (x) notifies the Trust that it is
unwilling or unable to continue as Depositary for the Global Capital Security
and the Trust thereupon fails to appoint a successor Depositary within 90 days
or (y) has ceased to be a clearing agency registered under the Exchange Act,
(ii) the Corporation in its sole discretion elects to cause the issuance of
the Capital Securities in certificated form or (iii) there shall have occurred
and be continuing an Event of Default or any event which after notice or lapse
of time or both would be an Event of Default under the Trust Agreement. In
addition, beneficial interests in a Global Capital Security may be exchanged
for certificated Capital Securities upon request but only upon at least 20
days prior written notice given to the Property Trustee by or on behalf of DTC
in accordance with customary procedures. In all cases, certificated Capital
Securities delivered in exchange for any Global Capital Security or beneficial
interests therein will be registered in the names, and issued in any approved
denominations, requested by or on behalf of the Depositary (in accordance with
its customary procedures), unless the Property Trustee determines otherwise in
compliance with applicable law.
 
PAYMENT AND PAYING AGENCY
 
  Payments in respect of Global Capital Securities shall be made to DTC, which
shall credit the relevant accounts at DTC on the applicable Distribution
Dates, while payments in respect of Capital Securities in certificated form
shall be made by check mailed to the address of the holder entitled thereto as
such address shall appear on the register. The paying agent (the "Paying
Agent") shall initially be the Property Trustee and any co-paying agent chosen
by the Property Trustee and acceptable to the Administrative Trustees and the
Corporation. The Paying Agent shall be permitted to resign as Paying Agent
upon 30 days' written notice to the Property Trustee and the Corporation. In
the event that the Property Trustee shall no longer be the Paying Agent, the
Administrative Trustees shall appoint a successor (which shall be a bank or
trust company acceptable to the Administrative Trustees and the Corporation)
to act as Paying Agent.
 
                                      25
<PAGE>
 
REGISTRAR AND TRANSFER AGENT
 
  The Property Trustee will act as registrar and transfer agent for the
Capital Securities.
 
  Registration of transfers of the Capital Securities will be effected without
charge by or on behalf of the Trust, but upon payment of any tax or other
governmental charges that may be imposed in connection with any transfer or
exchange. The Trust will not be required to register or cause to be registered
the transfer of the Capital Securities after they have been called for
redemption.
 
INFORMATION CONCERNING THE PROPERTY TRUSTEE
 
  The Property Trustee, other than during the occurrence and continuance of an
Event of Default, undertakes to perform only such duties as are specifically
set forth in the Trust Agreement and, after such Event of Default, must
exercise the same degree of care and skill as a prudent person would exercise
or use in the conduct of his or her own affairs. Subject to this provision,
the Property Trustee is under no obligation to exercise any of the powers
vested in it by the Trust Agreement at the request of any holder of Trust
Securities unless it is offered reasonable indemnity against the costs,
expenses and liabilities that might be incurred thereby. If no Event of
Default has occurred and is continuing and the Property Trustee is required to
decide between alternative causes of action, construe ambiguous provisions in
the Trust Agreement or is unsure of the application of any provision of the
Trust Agreement, and the matter is not one on which holders of the Capital
Securities or the Common Securities are entitled under the Trust Agreement to
vote, then the Property Trustee shall take such action as is directed by the
Corporation and if not so directed, shall take such action as it deems
advisable and in the best interests of the holders of the Trust Securities and
will have no liability except for its own bad faith, negligence or willful
misconduct.
 
MISCELLANEOUS
 
  The Administrative Trustees are authorized and directed to conduct the
affairs of and to operate the Trust in such a way that the Trust will not be
deemed to be an "investment company" required to be registered under the
Investment Company Act or classified as an association taxable as a
corporation for United States federal income tax purposes and so that the
Junior Subordinated Debentures will be treated as indebtedness of the
Corporation for United States federal income tax purposes. In this connection,
the Corporation and the Administrative Trustees are authorized to take any
action, not inconsistent with applicable law, the certificate of trust of the
Trust or the Trust Agreement, that the Corporation and the Administrative
Trustees determine in their discretion to be necessary or desirable for such
purposes, as long as such action does not materially adversely affect the
interests of the holders of the Trust Securities.
 
  Holders of the Trust Securities have no preemptive or similar rights.
 
  The Trust may not borrow money, issue debt, execute mortgages or pledge any
of its assets.
 
                                      26
<PAGE>
 
                 DESCRIPTION OF JUNIOR SUBORDINATED DEBENTURES
 
  The Junior Subordinated Debentures are to be issued under an Indenture, as
supplemented from time to time (as so supplemented, the "Indenture"), between
the Corporation and the Debenture Trustee. The Indenture is qualified under the
Trust Indenture Act. This summary of certain terms and provisions of the Junior
Subordinated Debentures and the Indenture does not purport to be complete and
is subject to, and is qualified in its entirety by reference to, all of the
provisions of the Indenture, including the definitions therein of certain
terms, and those terms made a part of the Indenture by the Trust Indenture Act.
 
GENERAL
 
  Concurrently with the issuance of the Trust Securities, the Trust will invest
the proceeds thereof, together with the consideration paid by the Corporation
for the Common Securities, in Junior Subordinated Debentures issued by the
Corporation. The Junior Subordinated Debentures will bear interest at a rate
per annum reset quarterly equal to LIBOR plus    % (the "Interest Rate") on the
principal amount thereof, payable quarterly in arrears on      ,      ,
and       of each year, commencing      , 1997 (each, an "Interest Payment
Date"), to the person in whose name each Junior Subordinated Debenture is
registered, subject to certain exceptions, at the close of business on the
      day of the month in which the relevant Interest Payment Date falls. It is
anticipated that, until the liquidation, if any, of the Trust, each Junior
Subordinated Debenture will be held in the name of the Property Trustee in
trust for the benefit of the holders of the Trust Securities. The amount of
interest payable for any period will be computed on the basis of the actual
number of days elapsed in such period and a year of 360 days. In the event that
any Interest Payment Date is not a Business Day, then such Interest Payment
Date shall be postponed to the next succeeding Business Day, except that if
such Business Day falls in the next succeeding calendar month then such
Interest Payment Date shall be the immediately preceding Business Day. If the
Stated Maturity Date or earlier prepayment date for the Junior Subordinated
Debentures falls on a day that is not a Business Day, payment of interest on
such date will be made on the next succeeding Business Day, and no interest or
other payment will accrue for the period from and after the Stated Maturity
Date or such prepayment date, as the case may be. Accrued interest that is not
paid on the applicable Interest Payment Date will bear additional interest on
the amount thereof (to the extent permitted by law) at the Interest Rate,
compounded quarterly. The term "interest", as used herein, shall include
quarterly interest payments, interest on quarterly interest payments not paid
on the applicable Interest Payment Date and Additional Sums (as defined below),
as applicable.
   
  The Junior Subordinated Debentures will be issued in denominations of $1,000
and integral multiples thereof. The Junior Subordinated Debentures will mature
on     , 2027 (the "Stated Maturity Date").     
 
  The Junior Subordinated Debentures will rank pari passu with all Other
Debentures and will be unsecured and subordinate and junior in right of payment
to the extent and in the manner set forth in the Indenture to all Senior
Indebtedness. See "--Subordination." The Corporation is a non-operating holding
company and almost all of the operating assets of the Corporation and its
consolidated subsidiaries are owned by such subsidiaries. The Corporation
relies primarily on dividends from such subsidiaries to meet its obligations.
The Corporation is a legal entity separate and distinct from its banking and
non-banking affiliates. The principal sources of the Corporation's income are
dividends, interest and fees from its banking and non-banking affiliates. The
bank subsidiaries of the Corporation (the "Banks") are subject to certain
restrictions imposed by federal law on any extensions of credit to, and certain
other transactions with, the Corporation and certain other affiliates, and on
investments in stock or other securities thereof. Such restrictions prevent the
Corporation and such other affiliates from borrowing from the Banks unless the
loans are secured by various types of collateral. Further, such secured loans,
other transactions and investments by any of the Banks are generally limited in
amount as to the Corporation and as to each of such other affiliates to 10% of
such Bank's capital and surplus and as to the Corporation and all of such other
affiliates to an aggregate of 20% of such Bank's capital and surplus. In
addition, payment of dividends to the Corporation by the subsidiary banks is
subject to ongoing review by banking regulators and is subject to various
statutory limitations and in certain circumstances requires approval by
 
                                       27
<PAGE>
 
banking regulatory authorities. Because the Corporation is a holding company,
the right of the Corporation to participate in any distribution of assets of
any subsidiary upon such subsidiary's liquidation or reorganization or
otherwise, is subject to the prior claims of creditors of the subsidiary,
except to the extent the Corporation may itself be recognized as a creditor of
that subsidiary. Accordingly, the Junior Subordinated Debentures will be
effectively subordinated to all existing and future liabilities of the
Corporation's subsidiaries, and holders of Junior Subordinated Debentures
should look only to the assets of the Corporation for payments on the Junior
Subordinated Debentures. The Indenture does not limit the incurrence or
issuance of other secured or unsecured debt, including Senior Indebtedness, of
the Corporation or its subsidiaries. See "--Subordination."
 
INTEREST RATE
   
   The interest period with respect to the Junior Subordinated Debentures is
each successive period from and including the immediately preceding Interest
Payment Date (or the date of original issuance, in the case of the initial
interest period) to but excluding the applicable Interest Payment Date. The
Bank of New York, as Calculation Agent (the "Calculation Agent"), will
calculate the Interest Rate for each interest period based on LIBOR determined
as of two London Business Days (defined as any day on which dealings in U.S.
dollars are transacted in the London interbank market) prior to the first day
of such interest period (each, a "Determination Date"). "LIBOR" means, with
respect to an interest period relating to an Interest Payment Date (in the
following order of priority):     
     
    (1) the rate (expressed as a percentage per annum) for Eurodollar
  deposits having a three-month maturity that appears on Telerate Page 3750
  as of 11:00 a.m. (London time) on the related Determination Date;     
     
    (2) if such rate does not appear on Telerate page 3750 as of 11:00 a.m.
  (London time) on the related Determination Date, LIBOR will be the
  arithmetic mean (if necessary rounded upwards to the nearest whole multiple
  of 0.00001%) of the rates (expressed as percentages per annum) for
  Eurodollar deposits having a three-month maturity that appear on Reuters
  Monitor Money Rates Page LIBO ("Reuters Page LIBO") as of 11:00 a.m.
  (London time) on such Determination Date;     
     
    (3) if such rate does not appear on Reuters Page LIBO as of 11:00 a.m.
  (London time) on the related Determination Date, the Calculation Agent will
  request the principal London offices of four leading banks in the London
  interbank market to provide such banks' offered quotations (expressed as
  percentages per annum) to prime banks in the London interbank market for
  Eurodollar deposits having a three-month maturity as of 11:00 a.m. (London
  time) on such Determination Date and, if at least two quotations are so
  provided, LIBOR will be the arithmetic mean (if necessary rounded upwards
  to the nearest whole multiple of 0.00001%) of such quotations;     
     
    (4) if fewer than two such quotations are provided as requested in clause
  (3) above, the Calculation Agent will request four major New York City
  banks to provide such banks' offered quotations (expressed as percentages
  per annum) to leading European banks for loans in Eurodollars having a
  three-month maturity as of 11:00 a.m. (London time) on the related
  Determination Date and, if at least two such quotations are so provided,
  LIBOR will be the arithmetic mean (if necessary rounded upwards to the
  nearest whole multiple of 0.00001%) of such quotations; and     
 
    (5) if fewer than two such quotations are provided as requested in clause
  (4) above, LIBOR will be LIBOR as determined on the immediately preceding
  Determination Date.
   
  If the rate for Eurodollar deposits having a three-month maturity that
initially appears on Telerate Page 3750 or Reuters Page LIBO, as the case may
be, as of 11:00 a.m. (London time) on the related Determination Date is
superseded on Telerate Page 3750 or Reuters Page LIBO, as the case may be, by
a corrected rate before 12:00 noon (London time) on such Determination Date,
such corrected rate will be the applicable LIBOR for such Determination Date.
    
                                      28
<PAGE>
 
   
  Absent manifest error, the Calculation Agent's determination of LIBOR and
its calculation of the applicable Interest Rate for each interest period will
be final and binding. Investors may obtain the interest rates for the current
and preceding interest period by writing or calling the Corporate Trust
Department of the Calculation Agent at 101 Barclay Street, New York, New York
10286 (telephone (212) 815-5915).     
 
FORM, REGISTRATION AND TRANSFER
 
  If the Junior Subordinated Debentures are distributed to the holders of the
Trust Securities, the Junior Subordinated Debentures may be represented by one
or more global certificates registered in the name of Cede & Co. as the
nominee of DTC. The depositary arrangements for such Junior Subordinated
Debentures are expected to be substantially similar to those in effect for the
Capital Securities. For a description of DTC and the terms of the depositary
arrangements relating to payments, transfers, voting rights, prepayments,
notices and other matters, see "Description of Capital Securities--Form,
Denomination, Book-Entry Procedures and Transfer."
 
PAYMENT AND PAYING AGENTS
 
  Payment of principal of (and premium, if any) and any interest on Junior
Subordinated Debentures will be made at the office of the Debenture Trustee in
The City of New York or at the office of such Paying Agent or Paying Agents as
the Corporation may designate from time to time, except that at the option of
the Corporation payment of any interest may be made except in the case of
Junior Subordinated Debentures in global form, (i) by check mailed to the
address of the Person entitled thereto as such address shall appear in the
register for Junior Subordinated Debentures or (ii) by transfer to an account
maintained by the Person entitled thereto as specified in such register,
provided that proper transfer instructions have been received by the relevant
Record Date. Payment of any interest on any Junior Subordinated Debenture will
be made to the Person in whose name such Junior Subordinated Debenture is
registered at the close of business on the Record Date for such interest,
except in the case of defaulted interest. The Corporation may at any time
designate additional Paying Agents or rescind the designation of any Paying
Agent; however, the Corporation will at all times be required to maintain a
Paying Agent in each Place of Payment for the Junior Subordinated Debentures.
 
  Any moneys deposited with the Debenture Trustee or any Paying Agent, or then
held by the Corporation in trust, for the payment of the principal of (and
premium, if any) or interest on any Junior Subordinated Debenture and
remaining unclaimed for two years after such principal (and premium, if any)
or interest has become due and payable shall, at the request of the
Corporation, be repaid to the Corporation and the holder of such Junior
Subordinated Debenture shall thereafter look, as a general unsecured creditor,
only to the Corporation for payment thereof.
 
OPTION TO EXTEND INTEREST PAYMENT DATE
 
  So long as no Debenture Event of Default has occurred and is continuing, the
Corporation will have the right under the Indenture at any time during the
term of the Junior Subordinated Debentures to defer the payment of interest at
any time or from time to time for a period not exceeding 20 consecutive
quarterly periods with respect to each Extension Period, provided that no
Extension Period may extend beyond the Stated Maturity Date. At the end of
such Extension Period, the Corporation must pay all interest then accrued and
unpaid (together with interest thereon at the applicable Interest Rate,
compounded quarterly, to the extent permitted by applicable law). During an
Extension Period, interest will continue to accrue and holders of Junior
Subordinated Debentures (and holders of the Trust Securities while Trust
Securities are outstanding) will be required to accrue interest income for
United States federal income tax purposes prior to the receipt of cash
attributable to such income. See "Certain Federal Income Tax Consequences--
Interest Income and Original Issue Discount."
 
  During any Extension Period, the Corporation may not (i) declare or pay any
dividends or distributions on, or redeem, purchase, acquire, or make a
liquidation payment with respect to, any of the Corporation's capital stock
(which includes common and preferred stock) or (ii) make any payment of
principal, interest or premium,
 
                                      29
<PAGE>
 
if any, on or repay, repurchase or redeem any debt securities of the
Corporation (including any Other Debentures) that rank pari passu with or
junior in right of payment to the Junior Subordinated Debentures or (iii) make
any guarantee payments with respect to any guarantee by the Corporation of the
debt securities of any subsidiary of the Corporation (including any Other
Guarantees) if such guarantee ranks pari passu with or junior in right of
payment to the Junior Subordinated Debentures (other than (a) dividends or
distributions in shares of or options, warrants or rights to subscribe for or
purchase shares of, common stock of the Corporation, (b) any declaration of a
dividend in connection with the implementation of a stockholders' rights plan,
or the issuance of stock under any such plan in the future, or the redemption
or repurchase of any such rights pursuant thereto, (c) payments under the
Guarantee, (d) as a result of a reclassification of the Corporation's capital
stock or the exchange or conversion of one class or series of the
Corporation's capital stock for another class or series of the Corporation's
capital stock (e) the purchase of fractional interests in shares of the
Corporation's capital stock pursuant to the conversion or exchange provisions
of such capital stock or the security being converted or exchanged, and (f)
purchases of common stock related to the issuance of common stock or rights
under any of the Corporation's benefit plans for its directors, officers or
employees or any of the Corporation's dividend reinvestment plans).
 
  Prior to the termination of any Extension Period, the Corporation may
further extend such Extension Period, provided that such extension does not
cause such Extension Period to exceed 20 consecutive quarterly periods or to
extend beyond the Stated Maturity Date. Upon the termination of any such
Extension Period and the payment of all amounts then due on any Interest
Payment Date, the Corporation may elect to begin a new Extension Period,
subject to the above requirements. No interest shall be due and payable during
an Extension Period, except at the end thereof. The Corporation must give the
Property Trustee, the Administrative Trustees and the Debenture Trustee notice
of its election of any Extension Period (or an extension thereof) at least
five Business Days prior to the earlier of (i) the date the Distributions on
the Trust Securities would have been payable except for the election to begin
or extend such Extension Period or (ii) the date the Administrative Trustees
are required to give notice to any securities exchange or to holders of
Capital Securities of the record date or the date such Distributions are
payable, but in any event not less than five Business Days prior to such
record date. The Debenture Trustee shall give notice of the Corporation's
election to begin or extend a new Extension Period to the holders of the
Capital Securities. There is no limitation on the number of times that the
Corporation may elect to begin an Extension Period.
 
OPTIONAL PREPAYMENT
 
  The Junior Subordinated Debentures will be prepayable, in whole or in part,
at the option of the Corporation on or after       2007, subject to the
Corporation having received prior approval of the Federal Reserve if then
required under applicable capital guidelines or policies of the Federal
Reserve, at a Prepayment Price equal to 100% of the principal amount of the
Junior Subordinated Debentures so redeemed plus accrued interest thereon to
the date of prepayment.
 
SPECIAL EVENT PREPAYMENT
 
  If a Special Event shall occur and be continuing, the Corporation may, at
its option and subject to receipt of prior approval of the Federal Reserve if
then required under applicable capital guidelines or policies of the Federal
Reserve, prepay the Junior Subordinated Debentures in whole (but not in part)
at any time within 90 days of the occurrence of such Special Event, at a
Prepayment Price equal to 100% of the principal amount of the Junior
Subordinated Debentures plus accrued interest thereon to the date of
prepayment.
 
  A "Special Event" means a Tax Event or a Regulatory Capital Event (as
defined below), as the case may be.
 
  A "Tax Event" means the receipt by the Corporation and the Trust of an
opinion of counsel experienced in such matters to the effect that, as a result
of any amendment to, or change (including any announced prospective change)
in, the laws or any regulations thereunder of the United States or any
political subdivision or taxing
 
                                      30
<PAGE>
 
authority thereof or therein, or as a result of any official administrative
pronouncement or judicial decision interpreting or applying such laws or
regulations, which amendment or change is effective or which pronouncement or
decision is announced on or after                , 1997, there is more than an
insubstantial risk that (i) the Trust is, or will be within 90 days of the
date of such opinion, subject to United States federal income tax with respect
to income received or accrued on the Junior Subordinated Debentures, (ii) the
interest payable by the Corporation on the Junior Subordinated Debentures is
not, or within 90 days of the date of such opinion will not be, deductible by
the Corporation, in whole or in part, for United States federal income tax
purposes, or (iii) the Trust is, or will be within 90 days of the date of such
opinion, subject to more than a de minimis amount of other taxes, duties or
other governmental charges.
 
  A "Regulatory Capital Event" means that the Corporation shall have received
an opinion of independent bank regulatory counsel experienced in such matters
to the effect that, as a result of (a) any amendment to, or change (including
any announced prospective change) in, the laws (or any regulations thereunder)
of the United States or any rules, guidelines or policies of the Federal
Reserve or (b) any official administrative pronouncement or judicial decision
interpreting or applying such laws or regulations, which amendment or change
is effective or which pronouncement or decision is announced on or after
                , 1997, the Capital Securities do not constitute, or within 90
days of the date thereof, will not constitute, Tier I capital (or its then
equivalent); provided, however, that the distribution of the Junior
Subordinated Debentures in connection with the liquidation of the Trust by the
Corporation shall not in and of itself constitute a Regulatory Capital Event
unless such liquidation shall have occurred in connection with a Tax Event.
 
  "Additional Sums" means the additional amounts as may be necessary in order
that the amount of Distributions then due and payable by the Trust on the
outstanding Capital Securities and Common Securities shall not be reduced as a
result of any additional taxes, duties and other governmental charges to which
the Trust has become subject as a result of a Tax Event.
 
  Notice of any prepayment will be mailed at least 30 days but not more than
60 days before the redemption date to each holder of Junior Subordinated
Debentures to be prepaid at its registered address. Unless the Corporation
defaults in payment of the prepayment price, on and after the prepayment date
interest ceases to accrue on such Junior Subordinated Debentures called for
prepayment.
 
  If the Trust is required to pay any additional taxes, duties or other
governmental charges as a result of a Tax Event, the Corporation will pay as
additional amounts on the Junior Subordinated Debentures the Additional Sums.
 
RESTRICTIONS ON CERTAIN PAYMENTS
 
  The Corporation will also covenant that it will not, (i) declare or pay any
dividends or distributions on, or redeem, purchase, acquire, or make a
liquidation payment with respect to, any of the Corporation's capital stock
(which includes common and preferred stock) or (ii) make any payment of
principal, interest or premium, if any, on or repay or repurchase or redeem
any debt securities of the Corporation (including Other Debentures) that rank
pari passu with or junior in right of payment to the Junior Subordinated
Debentures or (iii) make any guarantee payments with respect to any guarantee
by the Corporation of the debt securities of any subsidiary of the Corporation
(including under Other Guarantees) if such guarantee ranks pari passu or
junior in right of payment to the Junior Subordinated Debentures (other than
(a) dividends or distributions in shares of, or options, warrants or rights to
subscribe for or purchase shares of, common stock of the Corporation, (b) any
declaration of a dividend in connection with the implementation of a
stockholder's rights plan, or the issuance of stock under any such plan in the
future, or the redemption or repurchase of any such rights pursuant thereto,
(c) payments under the Guarantee, (d) as a result of a reclassification of the
Corporation's capital stock or the exchange or conversion of one class or
series of the Corporation's capital stock for another class or series of the
Corporation's capital stock (e) the purchase of fractional interests in shares
of the Corporation's capital stock pursuant to the conversion or exchange
provisions of such capital stock or the security being converted or exchanged,
and (f) purchases of common stock related to the issuance of common stock or
rights under any of the Corporation's
 
                                      31
<PAGE>
 
benefit plans for its directors, officers or employees or any of the
Corporation's dividend reinvestment plans) if at such time (1) there shall
have occurred any event of which the Corporation has actual knowledge that (a)
is, or with the giving of notice or the lapse of time, or both, would be, a
Debenture Event of Default and (b) in respect of which the Corporation shall
not have taken reasonable steps to cure, (2) if such Junior Subordinated
Debentures are held by the Trust, the Corporation shall be in default with
respect to its payment of any obligations under the Guarantee or (3) the
Corporation shall have given notice of its election of an Extension Period as
provided in the Indenture and shall not have rescinded such notice, and such
Extension Period, or any extension thereof, shall have commenced.
 
MODIFICATION OF INDENTURE
 
  From time to time the Corporation and the Debenture Trustee may, without the
consent of the holders of Junior Subordinated Debentures, amend, waive or
supplement the Indenture for specified purposes, including, among other
things, curing ambiguities, defects or inconsistencies (provided that any such
action does not materially adversely affect the interest of the holders of
Junior Subordinated Debentures) and qualifying, or maintaining the
qualification of, the Indenture under the Trust Indenture Act. The Indenture
contains provisions permitting the Corporation and the Debenture Trustee, with
the consent of the holders of a majority in principal amount of Junior
Subordinated Debentures, to modify the Indenture in a manner affecting the
rights of the holders of Junior Subordinated Debentures; provided, that no
such modification may, without the consent of the holders of each outstanding
Junior Subordinated Debenture so affected, (i) change the Stated Maturity
Date, or reduce the principal amount of the Junior Subordinated Debentures or
reduce the rate or extend the time of payment of interest thereon or (ii)
reduce the percentage of principal amount of Junior Subordinated Debentures,
the holders of which are required to consent to any such modification of the
Indenture.
 
DEBENTURE EVENTS OF DEFAULT
 
  The Indenture provides that any one or more of the following described
events with respect to the Junior Subordinated Debentures constitutes a
"Debenture Event of Default" (whatever the reason for such Debenture Event of
Default and whether it shall be voluntary or involuntary or be effected by
operation of law or pursuant to any judgment, decree or order of any court or
any order, rule or regulation of any administrative or governmental body):
 
    (i) failure for 30 days to pay any interest on the Junior Subordinated
  Debentures or any Other Debentures when due (subject to the deferral of any
  due date in the case of an Extension Period); or
 
    (ii) failure to pay any principal or premium, if any, on the Junior
  Subordinated Debentures or any Other Debentures when due, whether at
  maturity, upon redemption, by declaration of acceleration of maturity or
  otherwise; or
 
    (iii) failure to observe or perform in any material respect certain other
  covenants contained in the Indenture for 90 days after written notice to
  the Corporation from the Debenture Trustee or the holders of at least 25%
  in aggregate outstanding principal amount of Junior Subordinated
  Debentures; or
 
    (iv) certain events in bankruptcy, insolvency or reorganization of the
  Corporation.
 
  The holders of a majority in aggregate outstanding principal amount of the
Junior Subordinated Debentures have the right to direct the time, method and
place of conducting any proceeding for any remedy available to the Debenture
Trustee. The Debenture Trustee or the holders of not less than 25% in
aggregate outstanding principal amount of the Junior Subordinated Debentures
may declare the principal due and payable immediately upon a Debenture Event
of Default. The holders of a majority in aggregate outstanding principal
amount of the Junior Subordinated Debentures may annul such declaration and
waive the default if the default (other than the non-payment of the principal
of the Junior Subordinated Debentures which has become due solely by such
acceleration) has been cured and a sum sufficient to pay all matured
installments of interest and principal due otherwise than by acceleration has
been deposited with the Debenture Trustee.
 
                                      32
<PAGE>
 
  The holders of a majority in aggregate outstanding principal amount of the
Junior Subordinated Debentures affected thereby may, on behalf of the holders
of all the Junior Subordinated Debentures, waive any past default, except a
default in the payment of principal (or premium, if any) on or interest
(unless such default has been cured and a sum sufficient to pay all matured
installments of interest (and premium, if any) and principal due otherwise
than by acceleration has been deposited with the Debenture Trustee) or a
default in respect of a covenant or provision which under the Indenture cannot
be modified or amended without the consent of the holder of each outstanding
Junior Subordinated Debenture.
 
ENFORCEMENT OF CERTAIN RIGHTS BY HOLDERS OF CAPITAL SECURITIES
 
  If a Debenture Event of Default shall have occurred and be continuing and
shall be attributable to the failure of the Corporation to pay interest (or
premium, if any) on principal of the Junior Subordinated Debentures on the due
date, a holder of Capital Securities may institute a Direct Action. The
Corporation may not amend the Indenture to remove the foregoing right to bring
a Direct Action without the prior written consent of the holders of all of the
Capital Securities outstanding. If the right to bring a Direct Action is
removed, the Trust may become subject to the reporting obligations under the
Exchange Act. Notwithstanding any payments made to a holder of Capital
Securities by the Corporation in connection with a Direct Action, the
Corporation shall remain obligated to pay the principal of (or premium, if
any) or interest on the Junior Subordinated Debentures, and the Corporation
shall be subrogated to the rights of the holder of such Capital Securities
with respect to payments on the Capital Securities to the extent of any
payments made by the Corporation to such holder in any Direct Action.
 
  The holders of the Capital Securities will not be able to exercise directly
any remedies, other than those set forth in the preceding paragraph, available
to the holders of the Junior Subordinated Debentures unless there shall have
been an Event of Default under the Trust Agreement. See "Description of
Capital Securities--Events of Default; Notice."
 
CONSOLIDATION, MERGER, SALE OF ASSETS AND OTHER TRANSACTIONS
 
  The Indenture provides that the Corporation shall not consolidate with or
merge into any other Person or convey, transfer or lease its properties and
assets as an entirety or substantially as an entirety to any Person, and no
Person shall consolidate with or merge into the Corporation or convey,
transfer or lease its properties and assets as an entirety or substantially as
an entirety to the Corporation, unless: (i) in case the Corporation
consolidates with or merges into another Person or conveys or transfers its
properties and assets substantially as an entirety to any Person, the
successor Person is organized under the laws of the United States or any State
or the District of Columbia, and such successor Person expressly assumes the
Corporation's obligations on the Junior Subordinated Debentures; (ii)
immediately after giving effect thereto, no Debenture Event of Default, and no
event which, after notice or lapse of time or both, would become a Debenture
Event of Default, shall have occurred and be continuing; and (iii) certain
other conditions as prescribed in the Indenture are met.
 
  The general provisions of the Indenture do not afford holders of the Junior
Subordinated Debentures protection in the event of a highly leveraged or other
transaction involving the Corporation that may adversely affect holders of the
Junior Subordinated Debentures.
 
SATISFACTION AND DISCHARGE
 
  The Indenture provides that when, among other things, all Junior
Subordinated Debentures not previously delivered to the Debenture Trustee for
cancellation (i) have become due and payable or (ii) will become due and
payable at maturity within one year, and the Corporation deposits or causes to
be deposited with the Debenture Trustee funds, in trust, for the purpose and
in an amount sufficient to pay and discharge the entire indebtedness on the
Junior Subordinated Debentures not previously delivered to the Debenture
Trustee for cancellation, for the principal (and premium, if any) and interest
to the date of the deposit or to the Stated Maturity Date, as the case may be,
then the Indenture will cease to be of further effect (except as to the
Corporation's obligations to
 
                                      33
<PAGE>
 
pay all other sums due pursuant to the Indenture and to provide the officers'
certificates and opinions of counsel described therein), and the Corporation
will be deemed to have satisfied and discharged the Indenture.
 
SUBORDINATION
 
  In the Indenture, the Corporation has covenanted and agreed that any Junior
Subordinated Debentures issued thereunder will be subordinate and junior in
right of payment to all Senior Indebtedness to the extent provided in the
Indenture. Upon any payment or distribution of assets to creditors upon any
liquidation, dissolution, winding up, reorganization, assignment for the
benefit of creditors, marshaling of assets or any bankruptcy, insolvency, debt
restructuring or similar proceedings in connection with any insolvency or
bankruptcy proceeding of the Corporation, the holders of Senior Indebtedness
will first be entitled to receive payment in full of all Allocable Amounts (as
defined below) in respect of such Senior Indebtedness before the holders of
Junior Subordinated Debentures will be entitled to receive or retain any
payment in respect thereof.
 
  In the event of the acceleration of the maturity of Junior Subordinated
Debentures, the holders of all Senior Indebtedness outstanding at the time of
such acceleration will first be entitled to receive payment in full of all
Allocable Amounts in respect of such Senior Indebtedness before the holders of
Junior Subordinated Debentures will be entitled to receive or retain any
payment in respect of the Junior Subordinated Debentures.
 
  No payments on account of principal (or premium, if any) or interest, if
any, in respect of the Junior Subordinated Debentures may be made if there
shall have occurred and be continuing a default in any payment with respect to
Senior Indebtedness, or an event of default with respect to any Senior
Indebtedness resulting in the acceleration of the maturity thereof, or if any
judicial proceeding shall be pending with respect to any such default.
 
  "Allocable Amounts," when used with respect to any Senior Indebtedness,
means all amounts due or to become due on such Senior Indebtedness less, if
applicable, any amount which would have been paid to, and retained by, the
holders of such Senior Indebtedness (whether as a result of the receipt of
payments by the holders of such Senior Indebtedness from the Corporation or
any other obligor thereon or from any holders of, or trustee in respect of,
other indebtedness that is subordinate and junior in right of payment to such
Senior Indebtedness pursuant to any provision of such indebtedness for the
payment over of amounts received on account of such indebtedness to the
holders of such Senior Indebtedness or otherwise) but for the fact that such
Senior Indebtedness is subordinate or junior in right of payment to (or
subject to a requirement that amounts received on such Senior Indebtedness be
paid over to obligees on) trade accounts payable or accrued liabilities
arising in the ordinary course of business.
 
  "Indebtedness for Money Borrowed" shall mean any obligation of, or any
obligation guaranteed by, the Corporation for the repayment of borrowed money,
whether or not evidenced by bonds, debentures, notes or other written
instruments.
 
  "Indebtedness Ranking on a Parity with the Junior Subordinated Debentures"
shall mean (i) Indebtedness for Money Borrowed, whether outstanding on the
date of execution of the Indenture or thereafter created, assumed or incurred,
which specifically by its terms ranks equally with and not prior to the Junior
Subordinated Debentures in the right of payment upon the happening of the
dissolution or winding-up or liquidation or reorganization of the Corporation
and (ii) all other debt securities, and guarantees in respect of those debt
securities, issued to any other trust, or a trustee of such trust, partnership
or other entity affiliated with the Corporation that is a financing vehicle of
the Corporation (a "financing entity") in connection with the issuance by such
financing entity of equity securities or other securities guaranteed by the
Corporation pursuant to an instrument that ranks pari passu with or junior in
right of payment to the Guarantee.
 
  "Indebtedness Ranking Junior to the Junior Subordinated Debentures" shall
mean any Indebtedness for Money Borrowed, whether outstanding on the date of
execution of the Indenture or thereafter created, assumed or incurred, which
specifically by its terms ranks junior to and not equally with or prior to the
Junior
 
                                      34
<PAGE>
 
Subordinated Debentures (and any other Indebtedness Ranking on a Parity with
the Junior Subordinated Debentures) in right of payment upon the happening of
the dissolution or winding-up or liquidation or reorganization of the
Corporation. The securing of any Indebtedness for Money Borrowed, otherwise
constituting Indebtedness Ranking on a Parity with the Junior Subordinated
Debentures or Indebtedness Ranking Junior to the Junior Subordinated
Debentures, as the case may be, shall not be deemed to prevent such
Indebtedness for Money Borrowed from constituting Indebtedness Ranking on a
Parity with the Junior Subordinated Debentures or Indebtedness Ranking Junior
to the Junior Subordinated Debentures, as the case may be.
 
  "Senior Indebtedness" shall mean all Indebtedness for Money Borrowed,
whether outstanding on the date of execution of the Indenture or thereafter
created, assumed or incurred, except Indebtedness Ranking on a Parity with the
Junior Subordinated Debentures or Indebtedness Ranking Junior to the Junior
Subordinated Debentures, and any deferrals, renewals or extensions of such
Senior Indebtedness.
 
  The Indenture places no limitation on the amount of secured or unsecured
debt, including Senior Indebtedness, that may be incurred by the Corporation
or its subsidiaries. The Corporation and its subsidiaries expect from time to
time to incur additional indebtedness, including Senior Indebtedness.
 
GOVERNING LAW
 
  The Indenture and the Junior Subordinated Debentures will be governed by and
construed in accordance with the laws of the State of New York.
 
INFORMATION CONCERNING THE DEBENTURE TRUSTEE
 
  The Debenture Trustee is subject to all the duties and responsibilities
specified with respect to an indenture trustee under the Trust Indenture Act.
Subject to such provisions, the Debenture Trustee is under no obligation to
exercise any of the powers vested in it by the Indenture at the request of any
holder of Junior Subordinated Debentures, unless offered reasonable indemnity
by such holder against the costs, expenses and liabilities which might be
incurred thereby. The Debenture Trustee is not required to expend or risk its
own funds or otherwise incur personal financial liability in the performance
of its duties if the Debenture Trustee reasonably believes that repayment or
adequate indemnity is not reasonably assured to it.
 
                                      35
<PAGE>
 
                           DESCRIPTION OF GUARANTEE
 
  The Guarantee will be executed and delivered by the Corporation concurrently
with the issuance by the Trust of the Capital Securities for the benefit of
the holders from time to time of the Capital Securities. The Bank of New York
will act as indenture trustee ("Guarantee Trustee") under the Guarantee. The
Guarantee is qualified as an indenture under the Trust Indenture Act. The
Guarantee Trustee will act as the Guarantee Trustee for the purposes of
compliance with the Trust Indenture Act and will hold the Guarantee for the
benefit of the holders of the Capital Securities. This summary of certain
terms and provisions of the Guarantee does not purport to be complete and is
subject to, and qualified in its entirety by reference to, all of the
provisions of the Guarantee, including the definitions therein of certain
terms, and those made a part of the Guarantee by the Trust Indenture Act.
 
GENERAL
 
  The Corporation will irrevocably agree to pay in full on a subordinated
basis, to the extent set forth herein, the Guarantee Payments (as defined
below) to the holders of the Capital Securities, as and when due, regardless
of any defense, right of set-off or counterclaim that the Trust may have or
assert other than the defense of payment. The following payments with respect
to the Capital Securities, to the extent not paid by or on behalf of the Trust
(the "Guarantee Payments"), will be subject to the Guarantee: (i) any
accumulated and unpaid Distributions required to be paid on Capital
Securities, to the extent that the Trust has funds on hand legally available
therefor at such time, (ii) the applicable Redemption Price with respect to
Capital Securities called for redemption, to the extent that the Trust has
funds on hand legally available therefor at such time, or (iii) upon a
voluntary or involuntary termination and liquidation of the Trust (unless the
Junior Subordinated Debentures are distributed to holders of the Capital
Securities), the lesser of (a) the Liquidation Distribution and (b) the amount
of assets of the Trust remaining available for distribution to holders of
Capital Securities. The Corporation's obligation to make a Guarantee Payment
may be satisfied by direct payment of the required amounts by the Corporation
to the holders of the Capital Securities or by causing the Trust to pay such
amounts to such holders.
 
  The Corporation will, through the Guarantee, the Trust Agreement, the Junior
Subordinated Debentures and the Indenture, taken together, fully, irrevocably
and unconditionally guarantee all of the Trust's obligations under the Capital
Securities. No single document standing alone or operating in conjunction with
fewer than all of the other documents constitutes such guarantee. It is only
the combined operation of these documents that has the effect of providing a
full, irrevocable and unconditional guarantee of the Trust's obligations under
the Capital Securities. See "Relationship Among the Capital Securities, the
Junior Subordinated Debentures and the Guarantee."
 
STATUS OF THE GUARANTEE
 
  The Guarantee will constitute an unsecured obligation of the Corporation and
will rank subordinate and junior in right of payment to all Senior
Indebtedness in the same manner as Junior Subordinated Debentures, except in
the case of a bankruptcy or insolvency proceeding in respect of the
Corporation, in which case the Guarantee will rank subordinate and junior in
right of payment to all liabilities (other than Other Guarantees) of the
Corporation. The Guarantee will rank pari passu with all Other Guarantees
issued by the Corporation.
 
  Because the Corporation is a holding company, the right of the Corporation
to participate in any distribution of assets of any subsidiary upon such
subsidiary's liquidation or reorganization or otherwise, is subject to the
prior claims of creditors of that subsidiary, except to the extent the
Corporation may itself be recognized as a creditor of that subsidiary.
Accordingly, the Corporation's obligations under the Guarantee will be
effectively subordinated to all existing and future liabilities of the
Corporation's subsidiaries, and claimants should look only to the assets of
the Corporation for payments thereunder. See "Description of the Junior
Subordinated Debentures--General." The Guarantee does not limit the incurrence
or issuance of debt of the Corporation's subsidiaries.
 
                                      36
<PAGE>
 
  The Guarantee will constitute a guarantee of payment and not of collection
(i.e., the guaranteed party may institute a legal proceeding directly against
the Corporation to enforce its rights under the Guarantee without first
instituting a legal proceeding against any other person or entity). The
Guarantee will be held for the benefit of the holders of the Capital
Securities. The Guarantee will not be discharged except by payment of the
Guarantee Payments in full to the extent not paid by the Trust or upon
distribution to the holders of the Capital Securities of the Junior
Subordinated Debentures. The Guarantee does not place a limitation on the
amount of additional Senior Indebtedness that may be incurred by the
Corporation. The Corporation expects from time to time to incur additional
indebtedness constituting Senior Indebtedness.
 
AMENDMENTS AND ASSIGNMENT
 
  Except with respect to any changes that do not materially adversely affect
the rights of holders of the Capital Securities (in which case no vote or
consent will be required), the Guarantee may not be amended without the prior
approval of the holders of a majority of the Liquidation Amount of such
outstanding Capital Securities. The manner of obtaining any such approval will
be as set forth under "Description of the Capital Securities--Voting Rights;
Amendment of the Trust Agreement." All guarantees and agreements contained in
the Guarantee Agreement shall bind the successors, assigns, receivers,
trustees and representatives of the Corporation and shall inure to the benefit
of the holders of the Capital Securities then outstanding.
 
EVENTS OF DEFAULT
 
  An event of default under the Guarantee will occur upon the failure of the
Corporation to perform any of its payment or other obligations thereunder. The
holders of a majority in Liquidation Amount of the Capital Securities will
have the right to direct the time, method and place of conducting any
proceeding for any remedy available to the Guarantee Trustee in respect of the
Guarantee or to direct the exercise of any trust or power conferred upon the
Guarantee Trustee under the Guarantee.
 
  Any holder of the Capital Securities may institute a legal proceeding
directly against the Corporation to enforce its rights under the Guarantee
without first instituting a legal proceeding against the Trust, the Guarantee
Trustee or any other person or entity.
 
  The Corporation, as guarantor, will be required to file annually with the
Guarantee Trustee a certificate as to whether or not the Corporation is in
compliance with all the conditions and covenants applicable to it under the
Guarantee.
 
INFORMATION CONCERNING THE GUARANTEE TRUSTEE
 
  The Guarantee Trustee, other than during the occurrence and continuance of a
default by the Corporation in performance of the Guarantee, will undertake to
perform only such duties as are specifically set forth in the Guarantee and,
after default with respect to the Guarantee, must exercise the same degree of
care and skill as a prudent person would exercise or use in the conduct of his
or her own affairs. Subject to this provision, the Guarantee Trustee will be
under no obligation to exercise any of the powers vested in it by the
Guarantee at the request of any holder of the Capital Securities unless it is
offered reasonable indemnity against the costs, expenses and liabilities that
might be incurred thereby.
 
TERMINATION OF THE GUARANTEE
 
  The Guarantee will terminate and be of no further force and effect upon full
payment of the applicable Redemption Price of the Capital Securities, upon
full payment of the Liquidation Amount payable upon liquidation of the Trust
or upon distribution of Junior Subordinated Debentures to the holders of the
Capital Securities. The Guarantee will continue to be effective or will be
reinstated, as the case may be, if at any time any holder of the Capital
Securities must restore payment of any sums paid under the Capital Securities
or the Guarantee.
 
                                      37
<PAGE>
 
GOVERNING LAW
 
  The Guarantee will be governed by and construed in accordance with the laws
of the State of New York.
 
                RELATIONSHIP AMONG THE CAPITAL SECURITIES, THE
               JUNIOR SUBORDINATED DEBENTURES AND THE GUARANTEE
 
FULL AND UNCONDITIONAL GUARANTEE
 
  Payments of Distributions and other amounts due on the Capital Securities
(to the extent the Trust has funds on hand legally available for the payment
of such Distributions) will be irrevocably guaranteed by the Corporation as
and to the extent set forth under "Description of Guarantee." Taken together,
the Corporation's obligations under the Junior Subordinated Debentures, the
Indenture, the Trust Agreement and the Guarantee will provide, in the
aggregate, a full, irrevocable and unconditional guarantee of payments of
Distributions and other amounts due on the Capital Securities. No single
document standing alone or operating in conjunction with fewer than all of the
other documents constitutes such guarantee. It is only the combined operation
of these documents that has the effect of providing a full, irrevocable and
unconditional guarantee of the Trust's obligations under the Capital
Securities. If and to the extent that the Corporation does not make the
required payments on the Junior Subordinated Debentures, the Trust will not
have sufficient funds to make the related payments, including Distributions,
on the Capital Securities. The Guarantee will not cover any such payment when
the Trust does not have sufficient funds on hand legally available therefor.
In such event, the remedy of a holder of Capital Securities is to institute a
Direct Action. The obligations of the Corporation under the Guarantee will
rank subordinate and junior in right of payment to all Senior Indebtedness.
 
SUFFICIENCY OF PAYMENTS
 
  As long as payments of interest and other payments are made when due on the
Junior Subordinated Debentures, such payments will be sufficient to cover
Distributions and other payments due on the Capital Securities, primarily
because: (i) the aggregate principal amount or Prepayment Price of the Junior
Subordinated Debentures will be equal to the sum of the Liquidation Amount or
Redemption Price, as applicable, of the Capital Securities and related Common
Securities; (ii) the Interest Rate and interest and other payment dates on the
Junior Subordinated Debentures will match the Distribution Rate and
Distribution and other payment dates for the Trust Securities; (iii) the
Corporation shall pay for all and any costs, expenses and liabilities of the
Trust except the Trust's obligations to holders of Trust Securities under such
Trust Securities; and (iv) the Trust Agreement will provide that the Trust is
not authorized to engage in any activity that is not consistent with the
limited purposes thereof.
 
ENFORCEMENT RIGHTS OF HOLDERS OF CAPITAL SECURITIES
 
  A holder of any Capital Security may institute a legal proceeding directly
against the Corporation to enforce its rights under the Guarantee without
first instituting a legal proceeding against the Guarantee Trustee, the Trust
or any other person or entity. A default or event of default under any Senior
Indebtedness would not constitute a default or Event of Default under the
Trust Agreement. However, in the event of payment defaults under, or
acceleration of, Senior Indebtedness, the subordination provisions of the
Indenture will provide that no payments may be made in respect of the Junior
Subordinated Debentures until such Senior Indebtedness has been paid in full
or any payment default thereunder has been cured or waived. Failure to make
required payments on Junior Subordinated Debentures would constitute an Event
of Default under the Trust Agreement.
 
LIMITED PURPOSE OF THE TRUST
 
  The Capital Securities will represent beneficial interests in the Trust, and
the Trust exists for the sole purpose of issuing and selling the Trust
Securities, using the proceeds from the sale of the Trust Securities to
acquire the Junior Subordinated Debentures and engaging in only those other
activities necessary, advisable or
 
                                      38
<PAGE>
 
incidental thereto. A principal difference between the rights of a holder of a
Capital Security and a holder of a Junior Subordinated Debenture is that a
holder of a Junior Subordinated Debenture will be entitled to receive from the
Corporation the principal amount of (and premium, if any) and interest on
Junior Subordinated Debentures held, while a holder of Capital Securities is
entitled to receive Distributions from the Trust (or, in certain
circumstances, from the Corporation under the Guarantee) if and to the extent
the Trust has funds on hand legally available for the payment of such
Distributions.
 
RIGHTS UPON TERMINATION
 
  Unless the Junior Subordinated Debentures are distributed to holders of the
Trust Securities, upon any voluntary or involuntary termination and
liquidation of the Trust, the holders of the Trust Securities will be entitled
to receive, out of assets held by the Trust, the Liquidation Distribution in
cash. See "Description of Capital Securities--Liquidation of the Trust and
Distribution of Junior Subordinated Debentures." Upon any voluntary or
involuntary liquidation or bankruptcy of the Corporation, the Property
Trustee, as holder of the Junior Subordinated Debentures, would be a
subordinated creditor of the Corporation, subordinated in right of payment to
all Senior Indebtedness as set forth in the Indenture, but entitled to receive
payment in full of principal (and premium, if any) and interest, before any
stockholders of the Corporation receive payments or distributions. Since the
Corporation will be the guarantor under the Guarantee and will agree to pay
for all costs, expenses and liabilities of the Trust (other than the Trust's
obligations to the holders of its Trust Securities), the positions of a holder
of Capital Securities and a holder of Junior Subordinated Debentures relative
to stockholders of the Corporation in the event of liquidation or bankruptcy
of the Corporation are expected to be substantially the same.
 
                                      39
<PAGE>
 
                    CERTAIN FEDERAL INCOME TAX CONSEQUENCES
 
GENERAL
 
  In the opinion of Brown & Wood LLP, counsel to the Corporation and the Trust
("Tax Counsel"), the following is a summary of certain of the material United
States federal income tax consequences of the purchase, ownership and
disposition of Capital Securities held as capital assets by a holder who
purchases such Capital Securities upon initial issuance. It does not deal with
special classes of holders such as banks, thrifts, real estate investment
trusts, regulated investment companies, insurance companies, dealers in
securities or currencies, tax-exempt investors, or persons that will hold the
Capital Securities as a position in a "straddle," as part of a "synthetic
security" or "hedge," as part of a "conversion transaction" or other
integrated investment, or as other than a capital asset. This summary also
does not address the tax consequences to persons that have a functional
currency other than the U.S. dollar or the tax consequences to shareholders,
partners or beneficiaries of a holder of Capital Securities. Further, it does
not include any description of any alternative minimum tax consequences or the
tax laws of any state or local government or of any foreign government that
may be applicable to the Capital Securities. This summary is based on the
Internal Revenue Code of 1986, as amended (the "Code"), Treasury regulations
thereunder, the administrative and judicial interpretations thereof, as of the
date hereof, all of which are subject to change, possibly on a retroactive
basis.
 
CLASSIFICATION OF THE JUNIOR SUBORDINATED DEBENTURES
 
  In connection with the issuance of the Junior Subordinated Debentures, Tax
Counsel will render its opinion generally to the effect that, under then
current law and assuming full compliance with the terms of the Indenture (and
certain other documents), and based on certain facts and assumptions contained
in such opinion, the Junior Subordinated Debentures will be classified for
United States federal income tax purposes as indebtedness of the Corporation.
An opinion of Tax Counsel, however, is not binding on the Internal Revenue
Service (the "IRS") or the courts. Prospective investors should note that no
rulings have been or are expected to be sought from the IRS with respect to
any of these issues and no assurance can be given that the IRS will not take
contrary positions. Moreover, no assurance can be given that any of the
opinions expressed herein will not be challenged by the IRS or, if challenged,
that such a challenge would not be successful.
 
CLASSIFICATION OF THE TRUST
 
  In connection with the issuance of the Capital Securities, Tax Counsel will
render its opinion generally to the effect that, under then current law and
assuming full compliance with the terms of the Trust Agreement and the
Indenture (and certain other documents), and based on certain facts and
assumptions contained in such opinion, the Trust will be classified for United
States federal income tax purposes as a grantor trust and not as an
association taxable as a corporation. Accordingly, for United States federal
income tax purposes, each holder of Capital Securities generally will be
considered the owner of an undivided interest in the Junior Subordinated
Debentures, and each holder will be required to include in its gross income
any interest (or OID accrued) with respect to its allocable share of those
Junior Subordinated Debentures.
 
INTEREST INCOME AND ORIGINAL ISSUE DISCOUNT
 
  Under recently issued Treasury regulations (the "Regulations") applicable to
debt instruments issued on or after August 13, 1996, a "remote" contingency
that stated interest will not be timely paid will be ignored in determining
whether a debt instrument is issued with OID. The Corporation believes that
the likelihood of its exercising its option to defer payments of interest is
"remote" since exercising that option would prevent the Corporation from
declaring dividends on any class of its equity securities. Accordingly, the
Corporation intends to take the position, based on the advice of Tax Counsel,
that the Junior Subordinated Debentures will not be considered to be issued
with OID and, accordingly, stated interest on the Junior Subordinated
Debentures generally will be taxable to a holder as ordinary income at the
time it is paid or accrued in accordance with such holder's method of
accounting.
 
                                      40
<PAGE>
 
  Under the Regulations, if the Corporation were to exercise its option to
defer payments of interest, the Junior Subordinated Debentures would at that
time be treated as issued with OID, and all stated interest on the Junior
Subordinated Debentures would thereafter be treated as OID as long as the
Junior Subordinated Debentures remain outstanding. In such event, all of a
holder's taxable interest income with respect to the Junior Subordinated
Debentures would thereafter be accounted for on an economic accrual basis
regardless of such holder's method of tax accounting, and actual distributions
of stated interest would not be reported as taxable income. Consequently, a
holder of Capital Securities would be required to include in gross income OID
even though the Corporation would not make actual cash payments during an
Extension Period. Moreover, under the Regulations, if the option to defer the
payment of interest was determined not to be "remote", the Junior Subordinated
Debentures would be treated as having been originally issued with OID. In such
event, all of a holder's taxable interest income with respect to the Junior
Subordinated Debentures would be accounted for on an economic accrual basis
regardless of such holder's method of tax accounting, and actual distributions
of stated interest would not be reported as taxable income.
 
  The Regulations have not yet been addressed in any rulings or other
interpretations by the IRS, and it is possible that the IRS could take a
position contrary to Tax Counsel's interpretation herein.
 
  Because income on the Capital Securities will constitute interest or OID,
corporate holders of the Capital Securities will not be entitled to a
dividends-received deduction with respect to any income recognized with
respect to the Capital Securities.
 
RECEIPT OF JUNIOR SUBORDINATED DEBENTURES OR CASH UPON LIQUIDATION OF THE
TRUST
 
  The Corporation will have the right at any time to liquidate the Trust and
cause the Junior Subordinated Debentures to be distributed to the holders of
the Trust Securities, subject to (i) the Corporation having received an
opinion of counsel to the effect that such distribution will not be a taxable
event to holders of Capital Securities and (ii) the prior approval of the
Federal Reserve if then required under applicable capital guidelines or
policies of the Federal Reserve. Such a distribution, for United States
federal income tax purposes, would be treated as a nontaxable event to each
holder, and each holder would receive an aggregate tax basis in the Junior
Subordinated Debentures equal to such holder's aggregate tax basis in its
Capital Securities. A holder's holding period in the Junior Subordinated
Debentures so received in liquidation of the Trust would include the period
during which the Capital Securities were held by such holder. If, however, the
Trust is characterized for United States federal income tax purposes as an
association taxable as a corporation at the time of its dissolution, the
distribution of the Junior Subordinated Debentures may constitute a taxable
event to holders of Capital Securities and a holder's holding period in Junior
Subordinated Debentures would begin on the date such Junior Subordinated
Debentures were received.
 
  Under certain circumstances described herein (see "Description of Capital
Securities"), the Junior Subordinated Debentures may be prepaid for cash and
the proceeds of such prepayment distributed to holders in redemption of their
Capital Securities. Under current law, such a redemption would, for United
States federal income tax purposes, constitute a taxable disposition of the
redeemed Capital Securities, and a holder could recognize gain or loss as if
it sold such redeemed Capital Securities for cash. See "--Sales of Capital
Securities."
 
SALES OF CAPITAL SECURITIES
 
  A holder that sells Capital Securities (including a redemption of such
Capital Securities by the Corporation) will recognize gain or loss equal to
the difference between its adjusted tax basis in the Capital Securities and
the amount realized on the sale of such Capital Securities (other than with
respect to accrued and unpaid interest which has not yet been included in
income, which will be treated as ordinary income). A holder's adjusted tax
basis in the Capital Securities generally will be its initial purchase price
increased by OID (if any) previously includible in such holder's gross income
to the date of disposition and decreased by payments (if any) received on the
Capital Securities in respect of OID. Such gain or loss generally will be a
capital gain or loss and generally will be a long-term capital gain or loss if
the Capital Securities have been held for more than one year.
 
                                      41
<PAGE>
 
  The Capital Securities may trade at a price that does not accurately reflect
the value of accrued but unpaid interest with respect to the underlying Junior
Subordinated Debentures. A holder who uses the accrual method of accounting
for tax purposes (and a cash method holder, if the Junior Subordinated
Debentures are deemed to have been issued with OID) who disposes of his
Capital Securities between record dates for payments of distributions thereon
will be required to include accrued but unpaid interest on the Junior
Subordinated Debentures through the date of disposition in income as ordinary
income (i.e., interest or, possibly, OID), and to add such amount to his
adjusted tax basis in his pro rata share of the underlying Junior Subordinated
Debentures deemed disposed of. To the extent the selling price is less than
the holder's adjusted tax basis (which will include all accrued but unpaid
interest) a holder will recognize a capital loss. Subject to certain limited
exceptions, capital losses cannot be applied to offset ordinary income for
United States federal income tax purposes.
 
PROPOSED TAX LEGISLATION
 
  On February 6, 1997, as part of the Clinton Administration's Fiscal 1998
Budget Proposal, the Treasury Department proposed legislation (the "Proposed
Legislation") which would, among other things, generally deny corporate
issuers a deduction for interest in respect of certain debt obligations, such
as the Junior Subordinated Debentures, issued on or after the date of "first
committee action," if such debt obligations have a maximum term in excess of
15 years and are not shown as indebtedness on the issuer's applicable
consolidated balance sheet. Since the Proposed Legislation has not yet been
introduced by any member of the 105th Congress, the Proposed Legislation
should not apply to the Junior Subordinated Debentures. It is possible,
however, that the Proposed Legislation or any other legislation enacted by
Congress may give rise to a Tax Event, in which event the Corporation would be
permitted, upon approval of the Federal Reserve if then required under
applicable capital guidelines or policies of the Federal Reserve, to cause a
redemption of the Trust Securities at the Early Redemption Price by electing
to prepay the Junior Subordinated Debentures at the Prepayment Price. See
"Description of the Capital Securities--Redemption" and "Description of Junior
Subordinated Debentures--Special Event Prepayment."
 
UNITED STATES ALIEN HOLDERS
 
  For purposes of this discussion, a "United States Alien Holder" is any
corporation, individual, partnership, estate or trust that is not a U.S.
Holder for United States federal income tax purposes. A "U.S. Holder" is a
holder of Capital Securities who or which is (i) a citizen or individual
resident (or is treated as a citizen or individual resident) of the United
States for federal income tax purposes, (ii) a corporation or partnership
created or organized (or treated as created or organized for federal income
tax purposes) in or under the laws of the United States or any political
subdivision thereof, (iii) an estate the income of which is includible in its
gross income for federal income tax purposes without regard to its source or
(iv) a trust if, and only if, (a) a court within the United States is able to
exercise primary supervision over the administration of the trust and (b) one
or more United States trustees have the authority to control all substantial
decisions of the trust). Under present United States federal income tax laws:
(i) payments by the Trust or any of its paying agents to any holder of a
Capital Security who or which is a United States Alien Holder will not be
subject to United States federal withholding tax; provided that, (a) the
beneficial owner of the Capital Security does not actually or constructively
own 10 percent or more of the total combined voting power of all classes of
stock of the Corporation entitled to vote, (b) the beneficial owner of the
Capital Security is not a controlled foreign corporation that is related to
the Corporation through stock ownership, and (c) either (A) the beneficial
owner of the Capital Security certifies to the Trust or its agent, under
penalties of perjury, that it is not a United States holder and provides its
name and address or (B) a securities clearing organization, bank or other
financial institution that holds customers' securities in the ordinary course
of its trade or business (a "Financial Institution"), and holds the Capital
Security in such capacity, certifies to the Trust or its agent, under
penalties of perjury, that such statement has been received from the
beneficial owner by it or by a Financial Institution between it and the
beneficial owner and furnishes the Trust or its agent with a copy thereof; and
(ii) a United States Alien Holder of a Capital Security will not be subject to
United States federal withholding tax on any gain realized upon the sale or
other disposition of a Capital Security.
 
                                      42
<PAGE>
 
INFORMATION REPORTING TO HOLDERS
 
  Generally, income on the Capital Securities will be reported to holders on
Forms 1099, which forms should be mailed to holders of Capital Securities by
January 31 following each calendar year.
 
BACKUP WITHHOLDING
 
  Payments made on, and proceeds from the sale of, the Capital Securities may
be subject to a "backup" withholding tax of 31 percent unless the holder
complies with certain identification requirements. Any withheld amounts will
be allowed as a credit against the holder's United States federal income tax,
provided the required information is provided to the IRS.
 
  THE UNITED STATES FEDERAL INCOME TAX DISCUSSION SET FORTH ABOVE IS INCLUDED
FOR GENERAL INFORMATION ONLY AND MAY NOT BE APPLICABLE DEPENDING UPON A
HOLDER'S PARTICULAR SITUATION. HOLDERS SHOULD CONSULT THEIR TAX ADVISORS WITH
RESPECT TO THE TAX CONSEQUENCES TO THEM OF THE PURCHASE, OWNERSHIP AND
DISPOSITION OF THE CAPITAL SECURITIES, INCLUDING THE TAX CONSEQUENCES UNDER
STATE, LOCAL, FOREIGN AND OTHER TAX LAWS AND THE POSSIBLE EFFECTS OF CHANGES
IN UNITED STATES FEDERAL OR OTHER TAX LAWS.
 
                                      43
<PAGE>
 
                             ERISA CONSIDERATIONS
 
  The Corporation, the obligor with respect to the Junior Subordinated
Debentures held by the Trust, and its affiliates and the Property Trustee may
be considered a "party in interest" (within the meaning of the Employee
Retirement Income Security Act of 1974, as amended ("ERISA")) or a
"disqualified person" (within the meaning of Section 4975 of the Code) with
respect to many employee benefit plans ("Plans") that are subject to ERISA.
Any purchaser proposing to acquire Capital Securities with assets of any Plan
should consult with its counsel. The purchase and/or holding of Capital
Securities by a Plan that is subject to the fiduciary responsibility
provisions of ERISA or the prohibited transaction provisions of Section 4975
of the Code (including individual retirement arrangements and other plans
described in Section 4975(e)(1) of the Code) and with respect to which the
Corporation, the Property Trustee or any affiliate is a service provider (or
otherwise is a party in interest or a disqualified person) may constitute or
result in a prohibited transaction under ERISA or Section 4975 of the Code,
unless such Capital Securities are acquired pursuant to and in accordance with
an applicable exemption, such as Prohibited Transaction Class Exemption
("PTCE") 84-14 (an exemption for certain transactions determined by an
independent qualified professional asset manager), PTCE 91-38 (an exemption
for certain transactions involving bank collective investment funds), PTCE 90-
1 (an exemption for certain transactions involving insurance company pooled
separate accounts), PTCE 95-60 (an exemption for transactions involving
certain insurance company general accounts) or PTCE 96-23 (an exemption for
certain transactions determined by an in-house manager). In addition, a Plan
fiduciary considering the purchase of Capital Securities should be aware that
the assets of the Trust may be considered "plan assets" for ERISA purposes.
Therefore, a Plan fiduciary should consider whether the purchase of Capital
Securities could result in a delegation of fiduciary authority to the Property
Trustee, and, if so, whether such a delegation of authority is permissible
under the Plan's governing instrument or any investment management agreement
with the Plan. In making such determination, a Plan fiduciary should note that
the Property Trustee is a bank qualified to be an investment manager (within
the meaning of section 3(38) of ERISA) to which such a delegation of authority
generally would be permissible under ERISA. Further, prior to an Event of
Default with respect to the Junior Subordinated Debentures, the Property
Trustee will have only limited custodial and ministerial authority with
respect to Trust assets.
 
                                      44
<PAGE>
 
                                 UNDERWRITING
   
  Subject to the terms and conditions set forth in the Purchase Agreement (the
"Purchase Agreement") among the Corporation, the Trust and Morgan Stanley &
Co. Incorporated ("Morgan Stanley"), CS First Boston Corporation, Lehman
Brothers Inc. and Salomon Brothers Inc (collectively, the "Underwriters"), the
Corporation and the Trust have agreed that the Trust will sell to the
Underwriters, and the Underwriters have agreed, severally and not jointly, to
purchase from the Trust, the respective number of Capital Securities set forth
below opposite their respective names.     
 
<TABLE>   
<CAPTION>
                                                                  NUMBER OF
      UNDERWRITER                                             CAPITAL SECURITIES
      -----------                                             ------------------
      <S>                                                     <C>
      Morgan Stanley & Co. Incorporated......................
      CS First Boston Corporation............................
      Lehman Brothers Inc. ..................................
      Salomon Brothers Inc...................................
                                                                  ---------
        Total................................................       250,000
                                                                  =========
</TABLE>    
 
  The Underwriters propose to offer the Capital Securities initially at the
price to public set forth on the cover of this Prospectus and to certain
dealers at such price less a concession of not more than $    per Capital
Security. The Underwriters may allow and such dealers may reallow a concession
of not more than $    per Capital Security to certain other dealers. After the
initial offering, the price to public, concession and reallowance may be
changed.
 
  The Purchase Agreement provides that the obligation of the Underwriters to
pay for and accept delivery of the Capital Securities is subject to certain
conditions, including delivery of certain legal opinions by counsel for the
Underwriters.
 
  In view of the fact that the proceeds of the sale of the Capital Securities
will be invested in the Junior Subordinated Debentures, the Purchase Agreement
provides that the Corporation will pay, as compensation to the Underwriters,
an amount of $    per Capital Security.
 
  The Capital Securities constitute a new issue of securities with no
established trading market. The Corporation has been advised by the
Underwriters that they intend to make a market in the Capital Securities, but
they are not obligated to do so and such market making may be interrupted or
discontinued without notice. No assurance can be given as to the development
or liquidity of any trading market for the Capital Securities.
   
  The Corporation and the Trust have agreed in the Purchase Agreement that,
subject to certain conditions, prior to the closing under the Purchase
Agreement, neither will offer, sell, contract to sell or otherwise dispose of
any securities that are substantially similar to the Capital Securities or
that are convertible into or exchangeable for, or otherwise represent a right
to acquire, any such securities, except in the offering or with the prior
written consent of Morgan Stanley.     
 
  The Corporation and the Trust have agreed to indemnify the Underwriters and
certain other persons against certain liabilities, including liabilities under
the Securities Act, and to contribute to payments the Underwriters may be
required to make in respect thereof.
   
  Any or all of the Underwriters have in the past and may in the future serve
as a financial advisor to the Corporation.     
 
  Because the National Association of Securities Dealers, Inc. ("NASD") is
expected to view the Capital Securities offered hereby as interests in a
direct participation program, the offering is being made in compliance with
Rule 2810 of the NASD's Conduct Rules. Offers and sales of Capital Securities
will be made only to (i)
 
                                      45
<PAGE>
 
"qualified institutional buyers," as defined in Rule 144A under the Securities
Act or (ii) institutional "accredited
investors," as defined in Rule 501(a)(1), (2) or (3) of Regulation D under the
Securities Act, for whom an investment in the Capital Securities is
appropriate. The Underwriters may not confirm sales to any accounts over which
they exercise discretionary authority without the prior written approval of
the transaction by the customer.
 
  Until the distribution of the Capital Securities is completed, rules of the
Commission may limit the ability of the Underwriters and certain selling group
members to bid for and purchase the Capital Securities. As an exception to
these rules, the representatives of the Underwriters (the "Representatives")
are permitted to engage in certain transactions that stabilize the price of
the Capital Securities. Such transactions consist of bids or purchases for the
purpose of pegging, fixing or maintaining the price of the Capital Securities.
 
  If the Underwriters of the Capital Securities create a short position in the
Capital Securities offered hereby, i.e., if they sell more Capital Securities
than are set forth on the cover page of this Prospectus, then the
Representatives may reduce that short position by purchasing Capital
Securities in the open market. In general, purchases of a security for the
purpose of stabilization or to reduce a short position could cause the price
of the security to be higher than it might be in the absence of such
purchases. The Representatives may also impose a penalty bid on certain
Underwriters and selling group members. This means that if the Representatives
purchase Capital Securities in the open market to reduce the Underwriters'
short position or to stabilize the price of the Capital Securities, they may
reclaim the amount of the selling concession from the Underwriters and selling
group members who sold those Capital Securities as part of the offering. The
imposition of a penalty bid might also have an effect on the price of the
Capital Securities to the extent that it were to discourage resales of the
Capital Securities.
 
  Neither the Trust nor any of the Underwriters makes any representation or
prediction as to the direction or magnitude of any effect that the
transactions described above may have on the price of the Capital Securities.
In addition, neither the Trust nor any of the Underwriters makes any
representation that the Representatives will engage in such transactions or
that such transactions, once commenced, will not be discontinued without
notice.
 
                            VALIDITY OF SECURITIES
 
  The validity of the Capital Securities, the Guarantee and the Junior
Subordinated Debentures will be passed upon for the Corporation and the Trust
by Brown & Wood LLP, New York, New York and for the Underwriters by Skadden,
Arps, Slate, Meagher & Flom LLP, New York, New York. Certain matters relating
to United States federal income tax considerations will be passed upon for the
Corporation and the Trust by Brown & Wood LLP, New York, New York.
 
                                      46
<PAGE>
 
                                    EXPERTS
 
  The consolidated financial statements of the Corporation and subsidiaries,
contained in and incorporated by reference into the Corporation's Annual
Report on Form 10-K for the year ended December 31, 1996, have been
incorporated herein by reference in reliance upon the reports set forth
therein of Coopers & Lybrand L.L.P., independent auditors, and upon the
authority of such firm as experts in accounting and auditing.
 
                                      47
<PAGE>
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
 
  NO DEALER, SALESMAN OR ANY OTHER INDIVIDUAL HAS BEEN AUTHORIZED TO GIVE ANY
INFORMATION OR TO MAKE ANY REPRESENTATIONS OTHER THAN THOSE CONTAINED OR
INCORPORATED BY REFERENCE IN THIS PROSPECTUS IN CONNECTION WITH THE OFFER MADE
BY THIS PROSPECTUS AND, IF GIVEN OR MADE, SUCH INFORMATION OR REPRESENTATIONS
MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY THE CORPORATION, THE
TRUST OR THE UNDERWRITERS. NEITHER THE DELIVERY OF THIS PROSPECTUS NOR ANY
SALE MADE HEREUNDER SHALL UNDER ANY CIRCUMSTANCE CREATE AN IMPLICATION THAT
THERE HAS BEEN NO CHANGE IN THE AFFAIRS OF THE CORPORATION OR THE TRUST SINCE
THE DATE HEREOF. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER OR SOLICITATION
BY ANYONE IN ANY JURISDICTION IN WHICH SUCH OFFER OR SOLICITATION IS NOT
AUTHORIZED OR IN WHICH THE PERSON MAKING SUCH OFFER OR SOLICITATION IS NOT
QUALIFIED TO DO SO OR TO ANYONE TO WHOM IT IS UNLAWFUL TO MAKE SUCH OFFER OR
SOLICITATION.
 
                                ---------------
 
                               TABLE OF CONTENTS
 
<TABLE>   
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                        <C>
Available Information.....................................................   4
Incorporation of Certain Documents by Reference...........................   5
Prospectus Summary........................................................   6
Risk Factors..............................................................   9
BankBoston Corporation....................................................  13
Use of Proceeds...........................................................  13
Ratios of Earnings to Fixed Charges.......................................  13
Capitalization............................................................  14
Summary Financial Data....................................................  15
BankBoston Capital Trust III..............................................  16
Description of Capital Securities.........................................  17
Description of Junior Subordinated Debentures.............................  27
Description of Guarantee..................................................  36
Relationship Among the Capital Securities, the Junior Subordinated
 Debentures and the Guarantee.............................................  38
Certain Federal Income Tax Consequences...................................  40
ERISA Considerations......................................................  44
Underwriting..............................................................  45
Validity of Securities....................................................  46
Experts...................................................................  47
</TABLE>    
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
 
                                 $250,000,000
       
                                  BANKBOSTON
                               CAPITAL TRUST III
 
                       FLOATING RATE CAPITAL SECURITIES
                     FULLY AND UNCONDITIONALLY GUARANTEED,
                            AS DESCRIBED HEREIN, BY
 
                            BANKBOSTON CORPORATION
 
                                     LOGO
                       [LOGO OF BANKBOSTON APPEARS HERE]
 
                                ---------------
                                  PROSPECTUS
                                ---------------
                       
                    MORGAN STANLEY & CO. INCORPORATED     
                          
                       CS FIRST BOSTON CORPORATION     
                              
                           LEHMAN BROTHERS INC.     
                              
                           SALOMON BROTHERS INC     
 
                                      , 1997
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<PAGE>
 
                                    PART II
 
                  INFORMATION NOT REQUIRED IN THE PROSPECTUS
 
ITEM 14. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.
 
  The estimated expenses in connection with the issuance and distribution of
the securities being registered, other than underwriting compensation, are:
 
<TABLE>
      <S>                                                           <C>
      Securities Act Registration Fee.............................. $ 75,757.58
      Printing and Engraving Expenses..............................    5,000.00
      Legal Fees and Expenses......................................   75,000.00
      Accounting Fees and Expenses.................................   35,000.00
      Trustee Expenses.............................................    6,000.00
      Rating Agency Fees and Expenses..............................  162,500.00
      Miscellaneous................................................    5,742.42
                                                                    -----------
        Total...................................................... $365,000.00
                                                                    ===========
</TABLE>
 
ITEM 15. INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
  Section 67 of Chapter 156B of the Massachusetts General Laws authorizes a
corporation to indemnify any director, officer, employee or other agent of the
corporation to whatever extent specified in or authorized by (i) the articles
of organization, (ii) a by-law adopted by the stockholders or (iii) a vote
adopted by the holders of a majority of the shares of stock entitled to vote
on the election of directors.
 
  The Corporation's By-laws provide indemnity to the Corporation's directors
and officers in such capacity or as directors or officers of a wholly-owned
subsidiary of the Corporation for liability resulting from judgments, fines,
expenses or settlement amounts incurred in connection with any action,
including an action by or in the right of the Corporation, brought against
such person in such capacity. Under Massachusetts law and the By-laws, no
indemnification may be provided for any person with respect to any matter as
to which he or she shall have been adjudicated in any proceeding not to have
acted in good faith in the reasonable belief that his or her action was in the
best interest of the Corporation or of such subsidiary. The By-laws also
provide that, with respect to any matter disposed of by a compromise payment
by such director or officer pursuant to a consent decree or otherwise, no
indemnification shall be provided unless such compromise shall be ordered by a
court or shall be approved as being in the best interest of the Corporation,
after notice that it involves such indemnification: (a) by a disinterested
majority of the directors then in office or (b) by a majority of the
disinterested directors then in office, provided that there has been obtained
an opinion in writing of independent counsel to the effect that such person
does not appear not to have acted in good faith in the reasonable belief that
his or her action was in the best interests of the Corporation or (c) by the
holders of a majority of the outstanding stock at the time entitled to vote
for directors, exclusive of any stock owned by any interested director or
officer. Under Massachusetts law, a court may uphold indemnification in
connection with a suit in which there is a recovery or by in the right of a
corporation.
 
  The By-laws also provide for indemnification for all other directors and
officers of the Corporation's wholly-owned subsidiaries to the extent
authorized by the Board of Directors in each individual case, based on the
same statutory standard set forth in the preceding paragraph. Where such a
person is wholly successful in defending the claim, he or she shall be
entitled to indemnification. Directors and officers of other subsidiaries and
employees and agents of the Corporation and any subsidiaries may be
indemnified as determined by the Board from time to time.
 
  In addition, as permitted under Massachusetts law, the Corporation maintains
liability insurance covering directors and officers of the Corporation and its
subsidiaries.
 
                                     II-1
<PAGE>
 
ITEM 16. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES
 
EXHIBIT
 
<TABLE>   
 <C>   <S>
   1   --Form of Purchase Agreement+
   4.1 --Form of Indenture of BankBoston Corporation relating to the Junior
        Subordinated Debentures+
   4.2 --Form of Junior Subordinated Debenture (included as Exhibit A to
        Exhibit 4.1)+
   4.3 --Certificate of Trust of BankBoston Capital Trust III*
   4.4 --Declaration of Trust of BankBoston Capital Trust III*
   4.5 --Form of Amended and Restated Declaration of Trust for BankBoston
        Capital Trust III+
   4.6 --Form of Capital Security Certificate for BankBoston Capital Trust III
        (included as Exhibit D to Exhibit 4.5)+
   4.7 --Form of Guarantee of BankBoston Corporation relating to the Capital
        Securities+
   5.1 --Opinion and consent of Brown & Wood llp, special counsel to BankBoston
        Corporation as to legality of the Junior Subordinated Debentures and
        the Guarantee to be issued by BankBoston Corporation+
   5.2 --Opinion of Skadden, Arps, Slate, Meagher & Flom LLP, special Delaware
        counsel to BankBoston Capital Trust III, as to legality of the Capital
        Securities to be issued by BankBoston Capital Trust III+
   8   --Opinion of Brown & Wood LLP, special tax counsel, as to certain
        federal income tax matters+
  12.1 --Computation of ratio of earnings to fixed charges (excluding interest
        on deposits), filed as Exhibit 12.1 to the Corporation's Quarterly
        Report on Form 10-Q for the quarter ended March 31, 1997 and
        incorporated herein by reference.
  12.2 --Computation of ratio of earnings to fixed charges (including interest
        on deposits) filed as Exhibit 12.2 to the Corporation's Quarterly
        Report on Form 10-Q for the quarter ended March 31, 1997 and
        incorporated herein by reference.
  23.1 --Consent of Coopers & Lybrand L.L.P.*
  23.2 --Consent of Brown & Wood LLP (included in Exhibit 5.1)+
  23.3 --Consent of Skadden, Arps, Slate, Meagher & Flom (Delaware) (included
        in Exhibit 5.2)+
  24   --Power of Attorney of certain officers and directors of BankBoston
        Corporation*
  25.1 --Form T-1 Statement of Eligibility of The Bank of New York to act as
        trustee under the Indenture+
  25.2 --Form T-1 Statement of Eligibility of The Bank of New York to act as
        trustee under the Amended and Restated Declaration of Trust of
        BankBoston Capital Trust III+
  25.3 --Form T-1 Statement of Eligibility of The Bank of New York to act as
        trustee under the Guarantee for the benefit of the holders of the
        Capital Securities of BankBoston Capital Trust III+
</TABLE>    
- --------
   
* Previously filed.     
   
+ Filed herewith.     
 
ITEM 17. UNDERTAKINGS
 
  Each of the undersigned Registrants hereby undertakes that, for purposes of
determining any liability under the Securities Act, each filing of a
Registrant's annual report pursuant to Section 13(a) or Section 15(d) of the
Exchange Act that is incorporated by reference in this Registration Statement
shall be deemed to be a new registration statement relating to the securities
offered herein, 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
may be permitted to directors, officers and controlling persons of each
undersigned Registrant pursuant to the provisions, or otherwise, each
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 each
undersigned Registrant of expenses incurred or paid by a director, officer of
controlling person of each 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, each Registrant
will, unless in the opinion of its counsel the matter has been settled by the
controlling precedent, submit to a court of appropriate jurisdiction the
question whether such
 
                                     II-2
<PAGE>
 
indemnification by it is against public policy as expressed in the Act and
will be governed by the final adjudication of such issue.
 
  Each of the undersigned Registrants hereby undertakes:
 
    (1) For purposes of determining any liability under the Securities Act,
  the information omitted from the form of prospectus filed as part of a
  registration statement in reliance upon Rule 430A and contained in the form
  of prospectus filed by the registrant pursuant to Rule 424(b)(1) or (4) or
  497(h) under the Securities Act shall be deemed to be part of this
  registration statement as of the time it was declared effective.
 
    (2) For the purpose of determining any liability under the Securities
  Act, each post-effective amendment that contains a form of prospectus 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.
 
                                     II-3
<PAGE>
 
                                  SIGNATURES
   
  Pursuant to the requirements of the Securities Act, the Corporation
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this amendment no. 1
to the registration statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of Boston, and Commonwealth of
Massachusetts, on the 29th day of May, 1997.     
 
                                          BANKBOSTON CORPORATION
 
                                                  /s/ Gary A. Spiess
                                          By___________________________________
                                                    (Gary A. Spiess)
                                               (General Counsel and Clerk)
   
  Pursuant to the requirements of the Securities Act of 1933, this amendment
no. 1 to the Registration Statement has been signed by the following persons
in the capacities and on the dates indicated.     
 
<TABLE>   
<CAPTION>
             SIGNATURE                           TITLE                    DATE
             ---------                           -----                    ----
 
<S>                                  <C>                           <C>
   /s/   Charles K. Gifford*         Chief Executive Officer and      May 29, 1997
____________________________________ Director (Chief Executive
        (Charles K. Gifford)         Officer)
 
  /s/ William M. Crozier, Jr.*       Chairman of the Board of         May 29, 1997
____________________________________ Directors and Director
     (William M. Crozier, Jr.)
 
/s/ Henrique de Campos Meirelles*    President and Chief              May 29, 1997
____________________________________ Operating Officer and
   (Henrique de Campos Meirelles)    Director
 
   /s/    William J. Shea*           Vice Chairman, Chief             May 29, 1997
____________________________________ Financial Officer and
         (William J. Shea)           Treasurer (Chief Financial
                                     Officer)
 
     /s/ Robert T. Jefferson*        Comptroller (Chief               May 29, 1997
____________________________________ Accounting Officer)
       (Robert T. Jefferson)
 
        /s/ Wayne A. Budd*           Director                         May 29, 1997
____________________________________
          (Wayne A. Budd)
 
    /s/ John A. Cervieri Jr.*        Director                         May 29, 1997
____________________________________
       (John A. Cervieri Jr.)
 
     /s/ William F. Connell*         Director                         May 29, 1997
____________________________________
        (William F. Connell)
 
     /s/ Gary L. Countryman*         Director                         May 29, 1997
____________________________________
        (Gary L. Countryman)
 
      /s/ Alice F. Emerson*          Director                         May 29, 1997
____________________________________
         (Alice F. Emerson)
 
</TABLE>    
 
                                     II-4
<PAGE>
 
<TABLE>   
<CAPTION>
             SIGNATURE                           TITLE                    DATE
             ---------                           -----                    ----
<S>                                  <C>                           <C>
       /s/ Thomas J. May*            Director                         May 29, 1997
____________________________________
          (Thomas J. May)
 
     /s/ Donald F. McHenry*          Director                         May 29, 1997
____________________________________
        (Donald F. McHenry)
 
       /s/ Paul C. O'Brien*          Director                         May 29, 1997
____________________________________
         (Paul C. O'Brien)
 
       /s/ Thomas R. Piper*          Director                         May 29, 1997
____________________________________
         (Thomas R. Piper)
 
    /s/ Francene S. Rodgers*         Director                         May 29, 1997
____________________________________
       (Francene S. Rodgers)
 
        /s/ John W. Rowe*            Director                         May 29, 1997
____________________________________
           (John W. Rowe)
 
      /s/ Glenn P. Strehle*          Director                         May 29, 1997
____________________________________
         (Glenn P. Strehle)
 
    /s/ William C. Van Faasen*       Director                         May 29, 1997
____________________________________
      (William C. Van Faasen)
 
      /s/ Thomas B. Wheeler*         Director                         May 29, 1997
____________________________________
        (Thomas B. Wheeler)
 
                                     Director                         May   , 1997
____________________________________
         (Alfred M. Zeien)
</TABLE>    
 
      /s/ Gary A. Spiess
*By: __________________________
       ATTORNEY-IN-FACT
 
                                      II-5
<PAGE>
 
   
  Pursuant to the requirements of the Securities Act, the Trust certifies that
it has reasonable grounds to believe that it meets all the requirements for
filing on Form S-3 and has duly caused this amendment no. 1 to the
registration statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of Boston, and Commonwealth of
Massachusetts, on the 29th day of May, 1997.     
 
                                          BANKBOSTON CAPITAL TRUST III
 
                                                 /s/ Robert T. Jefferson
                                          By:__________________________________
                                             Robert T. Jefferson,
                                             as Administrative Trustee
 
                                                  /s/ Craig V. Starble
                                          By: _________________________________
                                             Craig V. Starble,
                                             as Administrative Trustee
 
                                              /s/ Kathleen M. McGillycuddy
                                          By: _________________________________
                                             Kathleen M. McGillycuddy,
                                             as Administrative Trustee
 
                                     II-6
<PAGE>
 
                                 EXHIBIT INDEX
 
<TABLE>   
<CAPTION>
    PAGE
 EXHIBIT NO.                             DESCRIPTION
 -----------                             -----------
 <C>         <S>
     1       --Form of Purchase Agreement+
     4.1     --Form of Indenture of BankBoston Corporation relating to the
              Junior Subordinated Debentures+
     4.2     --Form of Junior Subordinated Debenture (included as Exhibit A to
              Exhibit 4.1)+
     4.3     --Certificate of Trust of BankBoston Capital Trust III*
     4.4     --Declaration of Trust of BankBoston Capital Trust III*
     4.5     --Form of Amended and Restated Declaration of Trust for BankBoston
              Capital Trust III+
     4.6     --Form of Capital Security Certificate for BankBoston Capital
              Trust III (included as Exhibit D to Exhibit 4.5)+
     4.7     --Form of Guarantee of BankBoston Corporation relating to the
              Capital Securities+
     5.1     --Opinion and consent of Brown & Wood LLP, special counsel to
              BankBoston Corporation as to legality of the Junior Subordinated
              Debentures and the Guarantee to be issued by BankBoston
              Corporation+
     5.2     --Opinion of Skadden, Arps, Slate, Meagher & Flom LLP, special
              Delaware counsel to BankBoston Capital Trust III, as to legality
              of the Capital Securities to be issued by BankBoston Capital
              Trust III+
     8       --Opinion of Brown & Wood LLP, special tax counsel, as to certain
              federal income tax matters+
    12.1     --Computation of ratio of earnings to fixed charges (excluding
              interest on deposits), filed as Exhibit 12.1 to the Corporation's
              Quarterly Report on Form 10-Q for the quarter ended March 31,
              1997 and incorporated herein by reference.
    12.2     --Computation of ratio of earnings to fixed charges (including
              interest on deposits), filed as Exhibit 12.2 to the Corporation's
              Quarterly Report on Form 10-Q for the quarter ended March 31,
              1997 and incorporated herein by reference.
    23.1     --Consent of Coopers & Lybrand L.L.P.*
    23.2     --Consent of Brown & Wood LLP (included in Exhibit 5.1)+
    23.3     --Consent of Skadden, Arps, Slate, Meagher & Flom (Delaware)
              (included in Exhibit 5.2)+
    24       --Power of Attorney of certain officers and directors of
              BankBoston Corporation*
    25.1     --Form T-1 Statement of Eligibility of The Bank of New York to act
              as trustee under the Indenture+
    25.2     --Form T-1 Statement of Eligibility of The Bank of New York to act
              as trustee under the Amended and Restated Declaration of Trust of
              BankBoston Capital Trust III+
    25.3     --Form T-1 Statement of Eligibility of The Bank of New York to act
              as trustee under the Guarantee for the benefit of the holders of
              Capital Securities of BankBoston Capital Trust III+
</TABLE>    
- --------
   
* Previously filed.     
   
+ Filed herewith.     

<PAGE>
 
                                                                       EXHIBIT 1


                         BANKBOSTON CAPITAL TRUST III

                          (a Delaware business trust)

                       Floating Rate Capital Securities
              (Liquidation Amount of $1,000 Per Capital Security)

                              PURCHASE AGREEMENT




     Dated:  ___________ , 1997
<PAGE>
 
                                                           Draft of May 28, 1997

                        BANKBOSTON CAPITAL TRUST III

                        (a Delaware business trust)

                                $250,000,000

                      Floating Rate Capital Securities
            (Liquidation Amount of $1,000 Per Capital Security)

                             PURCHASE AGREEMENT

                                                         _______, 1997

     MORGAN STANLEY & CO. INCORPORATED
     CS FIRST BOSTON CORPORATION
     LEHMAN BROTHERS INC.
     SALOMON BROTHERS INC
       as Representatives of the several Underwriters
     c/o Morgan Stanley & Co. Incorporated
         1585 Broadway
         New York, New York  10036

     Ladies and Gentlemen:

          BANKBOSTON CAPITAL TRUST III (the "Trust"), a statutory
     business trust organized under the Business Trust Act (the
     "Delaware Act") of the State of Delaware (Chapter 38, Title 12,
     of the Delaware Code, 12 Del. (Sections 3801 et seq.)) and
     BANKBOSTON CORPORATION, a Massachusetts corporation (the
     "Company" and together with the Trust, the "Offerors"), confirm
     their agreement (the "Agreement") with Morgan Stanley & Co.
     Incorporated ("Morgan Stanley") and each of the other
     Underwriters named in Schedule A hereto (collectively, the
     "Underwriters", which term shall also include any underwriter
     substituted as hereinafter provided in Section 10 hereof), for
     whom Morgan Stanley, CS First Boston Corporation, Lehman Brothers
     Inc. and Salomon Brothers Inc are acting as representatives (in
     such capacity, the "Representatives"), with respect to the issue
     and sale by the Trust and the purchase by the Underwriters,
     acting severally and not jointly, of the respective number of
     Floating Rate Capital Securities (liquidation amount of $1,000
     per capital security) of the Trust (the "Capital Securities") set
     forth in said Schedule A.  The Capital Securities will be
     guaranteed by the Company, to the extent described in the
     Prospectus (as defined below), with respect to distributions and
     payments upon liquidation, redemption and 

                                       1
<PAGE>
 
     otherwise (the "Capital Securities Guarantee") pursuant to the Capital
     Securities Guarantee Agreement, to be dated as of _______, 1997 (the
     "Capital Securities Guarantee Agreement"), between the Company and The Bank
     of New York, as Trustee (the "Guarantee Trustee"). The Capital Securities
     issued in book-entry form will be issued to Cede & Co. as nominee of The
     Depository Trust Company ("DTC") pursuant to a letter agreement, to be
     dated as of the Closing Time (as defined in Section 2(b)) (the "DTC
     Agreement"), among the Trust, the Guarantee Trustee and DTC.

          The Offerors understand that the Underwriters propose to
     make a public offering of the Capital Securities as soon as the
     Representatives deem advisable after this Agreement has been
     executed and delivered and the Declaration (as defined herein),
     the Indenture (as defined herein) and the Capital Securities
     Guarantee Agreement have been qualified under the Trust Indenture
     Act of 1939, as amended (the "1939 Act").

          The entire proceeds from the sale of the Capital Securities
     will be combined with the entire proceeds from the sale by the
     Trust to the Company of its common securities (the "Common
     Securities") , as guaranteed by the Company, to the extent set
     forth in the Prospectus, with respect to distributions and
     payments upon liquidation, redemption and otherwise (the "Common
     Securities Guarantee" and, together with the Capital Securities
     Guarantee, the "Guarantees") pursuant to the Common Securities
     Guarantee Agreement, to be dated as of _______, 1997 (the "Common
     Securities Guarantee Agreement" and, together with the Capital
     Securities Guarantee Agreement, the "Guarantee Agreements"), made
     by the Company, and will be used by the Trust to purchase
     $257,732,000 aggregate principal amount of  Floating Rate Junior
     Subordinated Deferrable Interest Debentures due _______, 2027
     (the "Subordinated Debentures") to be issued by the Company.  The
     Capital Securities and the Common Securities will be issued
     pursuant to the Amended and Restated Declaration of Trust of the
     Trust, to be dated as of _______, 1997 (the "Declaration"), among
     the Company, as sponsor, Robert T. Jefferson, Kathleen M.
     McGillycuddy and Craig V. Starble, as administrative trustees
     (the "Administrative Trustees"), The Bank of New York, as
     property trustee (the "Property Trustee"), and The Bank of New
     York (Delaware), as Delaware trustee (the "Delaware Trustee,"
     and, together with the Property Trustee and the Administrative
     Trustees, the "Trustees").  The Subordinated Debentures will be
     issued pursuant to an indenture, to be dated as of _______, 1997
     (the "Indenture"), between the Company and The Bank of New York,
     as trustee (the "Debenture Trustee").

          The Capital Securities, the Capital Securities Guarantee and
     the Subordinated Debentures are hereinafter collectively referred
     to as the "Securities."  The Indenture, the Declaration, the DTC
     Agreement and this Agreement are hereinafter referred to
     collectively as the "Operative Documents."

          The Offerors have filed with the Securities and Exchange
     Commission (the "Commission") a registration statement on
     Form S-3 (No. 333-27229) covering the registration of the
     Securities under the Securities Act of 1933, as amended (the
     "1933 Act"), including the related preliminary prospectus or
     prospectuses. Promptly after execution and delivery of this

                                       2
<PAGE>
 
     Agreement, the Offerors will either (i) prepare and file a
     prospectus in accordance with the provisions of Rule 430A ("Rule
     430A") of the rules and regulations of the Commission under the
     1933 Act (the "1933 Act Regulations") and paragraph (b) of Rule
     424 ("Rule 424(b)") of the 1933 Act Regulations or (ii) if the
     Offerors have elected to rely upon Rule 434 ("Rule 434") of the
     1933 Act Regulations, prepare and file a term sheet (a "Term
     Sheet") in accordance with the provisions of Rule 434 and Rule
     424(b).  The information included in such prospectus or in such
     Term Sheet, as the case may be, that was omitted from such
     registration statement at the time it became effective but that
     is deemed to be part of such registration statement at the time
     it became effective (i) pursuant to paragraph (b) of Rule 430A is
     referred to as "Rule 430A Information" or (ii) pursuant to
     paragraph (d) of Rule 434 is referred to as "Rule 434
     Information."  Each prospectus used before such registration
     statement became effective, and any prospectus that omitted, as
     applicable, the Rule 430A Information or the Rule 434
     Information, that was used after such effectiveness and prior to
     the execution and delivery of this Agreement, is herein called a
     "preliminary prospectus."  Such registration statement, including
     the exhibits thereto, the schedules thereto, if any, and the
     documents incorporated by reference therein pursuant to Item 12
     of Form S-3 under the 1933 Act, at the time it became effective
     and including the Rule 430A Information and the Rule 434
     Information, as applicable, is herein called the "Registration
     Statement."  Any registration statement filed pursuant to Rule
     462(b) of the 1933 Act Regulations is herein referred to as the
     "Rule 462(b) Registration Statement," and after such filing the
     term "Registration Statement" shall include the Rule 462(b)
     Registration Statement.  The final prospectus, including the
     documents incorporated by reference therein pursuant to Item 12
     of Form S-3 under the 1933 Act, in the form first furnished to
     the Underwriters for use in connection with the offering of the
     Securities, is herein called the "Prospectus."  If Rule 434 is
     relied on, the term "Prospectus" shall refer to the preliminary
     prospectus and the Term Sheet, and all references in this
     Agreement to the date of the Prospectus shall mean the date of
     the Term Sheet.  For purposes of this Agreement, all references
     to the Registration Statement, any preliminary prospectus, the
     Prospectus or any Term Sheet or any amendment or supplement to
     any of the foregoing shall be deemed to include the copy filed
     with the Commission pursuant to its Electronic Data Gathering,
     Analysis and Retrieval system ("EDGAR").

          All references in this Agreement to financial statements and
     schedules and other information which is "contained," "included"
     or "stated" in the Registration Statement, any preliminary
     prospectus or the Prospectus (or other references of like import)
     shall be deemed to mean and include all such financial statements
     and schedules and other information which are incorporated by
     reference in the Registration Statement, any preliminary
     prospectus or the Prospectus, as the case may be; and all
     references in this Agreement to amendments or supplements to the
     Registration Statement, any preliminary prospectus or the
     Prospectus shall be deemed to mean and include the filing of any
     document under the Securities Exchange Act of 1934, as amended
     (the "1934 Act"), which is incorporated by reference in the
     Registration Statement, such preliminary prospectus or the
     Prospectus, as the case may be.

                                       3
<PAGE>
 
          SECTION 1.  Representations and Warranties.

          (a)  The  Offerors jointly and severally represent and
     warrant to each Underwriter as of the date hereof and as of the
     Closing Time, and agree with each Underwriter as follows:

                 (i)     The Company meets the requirements for use of
          Form S-3 under the 1933 Act.  Each of the Registration
          Statement and any Rule 462(b) Registration Statement has
          become effective under the 1933 Act and no stop order
          suspending the effectiveness of the Registration Statement
          or any Rule 462(b) Registration Statement has been issued
          under the 1933 Act and no proceedings for that purpose have
          been instituted or are pending or, to the knowledge of the
          Company, are contemplated by the Commission, and any request
          on the part of the Commission for additional information has
          been complied with.  

               At the respective times the Registration Statement, any
          Rule 462(b) Registration Statement and any post-effective
          amendments thereto became effective and at the Closing Time,
          the Registration Statement, the Rule 462(b) Registration
          Statement and any amendments thereto complied and will
          comply in all material respects with the requirements of the
          1933 Act and the 1933 Act Regulations and the 1939 Act and
          the rules and regulations of the Commission under the 1939
          Act (the "1939 Act Regulations"), and did not and will 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 misleading. 
          Neither the Prospectus nor any amendments or supplements
          thereto, at the time the Prospectus or any such amendment or
          supplement was issued and at the Closing Time, included or
          will include an untrue statement of a material fact or
          omitted or will omit to state a material fact necessary in
          order to make the statements therein, in the light of the
          circumstances under which they were made, not misleading. 
          If Rule 434 is used, the Company will comply with the
          requirements of Rule 434.  The representations and
          warranties in this subsection shall not apply to statements
          in or omissions from the Registration Statement (or any
          amendments thereto) or Prospectus (or any amendments or
          supplements thereto) made in reliance upon and in conformity
          with information furnished to the Offerors in writing by any
          Underwriter through Morgan Stanley expressly for use in the
          Registration Statement (or any amendments thereto) or
          Prospectus (or any amendments or supplements thereto).

               Any preliminary prospectus and the prospectus filed as
          part of the Registration Statement as originally filed or as
          part of any amendment thereto, or filed pursuant to Rule 424
          under the 1933 Act, complied when so filed in all material
          respects with the 1933 Act Regulations and any preliminary
          prospectus and the Prospectus delivered to the Underwriters
          for use in connection with this offering was identical to
          the electronically transmitted copies thereof filed with the
          Commission pursuant to EDGAR, except to the extent permitted
          by Regulation S-T.

                                       4
<PAGE>
 
                (ii)     The documents incorporated or deemed to be
          incorporated by reference in the Registration Statement and
          the Prospectus, at the time they were or hereafter are filed
          with the Commission, complied and will comply in all
          material respects with the requirements of the 1934 Act and
          the rules and regulations of the Commission thereunder (the
          "1934 Act Regulations"), and, when read together with the
          other information in the Prospectus, at the time the
          Registration Statement became effective, at the time the
          Prospectus was issued and at the Closing Time, did not and
          will 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, in light of the
          circumstances under which they were made, not misleading.

               (iii)     The accountants who certified certain
          financial statements and supporting schedules included in
          the Registration Statement are independent public
          accountants as required by the 1933 Act and the 1933 Act
          Regulations.

                (iv)     The consolidated financial statements,
          together with the related schedules and notes, included in
          the Registration Statement and the Prospectus present fairly
          the consolidated financial position of the Company and its
          subsidiaries at the dates indicated and the consolidated
          results of operations, stockholders' equity and cash flows
          of the Company and its subsidiaries for the periods
          specified; said financial statements have been prepared in
          conformity with generally accepted accounting principles
          ("GAAP") applied on a consistent basis throughout the
          periods involved, except as disclosed in the notes to such
          financial statements.  The supporting schedules, if any,
          included in the Registration Statement present fairly the
          information required to be stated therein.  The summary
          financial data included in the Prospectus present fairly the
          information shown therein and have been compiled on a basis
          consistent with that of the audited financial statements
          included in the Registration Statement.

                 (v)     Since the respective dates as of which
          information is given in the Registration Statement and the
          Prospectus, except as otherwise stated therein or
          contemplated thereby and, except for normal recurring
          dividends on the capital stock of the Company, there has not
          been (A) any material adverse change in the condition
          (financial or otherwise), earnings, business affairs or
          business prospects of the Trust, or of the Company and its
          subsidiaries, considered as one enterprise, whether or not
          arising in the ordinary course of business, (B) any
          transaction entered into by the Trust, the Company or any
          subsidiary, other than in the ordinary course of business,
          that is material to the Trust, or to the Company and its
          subsidiaries, considered as one enterprise, or (C) any
          dividend or distribution of any kind declared, paid or made
          by the Company on its capital stock.

                (vi)     The Company is a corporation duly organized,
          validly existing and in good standing under the laws of the
          Commonwealth of Massachusetts and has the corporate power
          and authority under such laws to own, lease and operate its
          properties and to conduct its business as described in the
          Prospectus; the Company is duly 

                                       5
<PAGE>
 
          registered as a bank holding company under the Bank Holding Company
          Act of 1956, as amended; and the Company is duly qualified as a
          foreign corporation to transact business and is in good standing in
          each jurisdiction in which it owns or leases property of a nature, or
          transacts business of a type, that would make such qualification
          necessary, except to the extent that the failure to so qualify or be
          in good standing would not have a material adverse effect on the
          Company and its subsidiaries, considered as one enterprise.

               (vii)     Each of BankBoston, N.A. ("BankBoston") and
          Rhode Island Hospital Trust National Bank ("Hospital Trust")
          is a duly organized and validly existing national banking
          association under the laws of the United States, continues
          to hold a valid certificate to do business as such and has
          full power and authority to conduct its business as such;
          Bank of Boston Connecticut is a duly organized and validly
          existing state-chartered savings bank under the laws of the
          State of Connecticut, continues to hold a valid certificate
          to do business as such and has full power and authority to
          conduct its business as such (BankBoston, Hospital Trust and
          Bank of Boston Connecticut are referred to collectively as
          the "Significant Subsidiaries"); each Significant Subsidiary
          has the authority under its jurisdiction of organization to
          own, lease and operate its properties and to conduct its
          business and is duly authorized to transact business and is
          in good standing in each jurisdiction in which it owns or
          leases property of a nature, or transacts business of a
          type, that would make such qualification necessary, except
          to the extent that the failure to so qualify or to be in
          good standing would not have a material adverse effect on
          the Company and its subsidiaries, considered as one
          enterprise.

                    (viii)    The Company does not have any
          subsidiaries which are material to its business, except to
          the extent that one or more of the Significant Subsidiaries
          may be deemed to be so material.

                    (ix) (a) The Company had at the date indicated a
          duly authorized and outstanding capitalization as set forth
          in the Prospectus, (b) all of the outstanding shares of
          capital stock of the Company have been duly authorized and
          validly issued and are fully paid and non-assessable, and
          (c) none of the outstanding shares of capital stock of the
          Company was issued in violation of the preemptive rights of
          any stockholder of the Company.

                    (x)  The Trust has been duly created and is
          validly existing in good standing as a business trust under
          the Delaware Act with the power and authority to own
          property and to conduct its business as described in the
          Prospectus and to enter into and perform its obligations
          under the Operative Documents, as applicable, and the
          Capital Securities; the Trust is not a party to or otherwise
          bound by any material agreement other than those described
          in the Prospectus; and the Trust is and will, under current
          law, be classified for United States federal income tax
          purposes as a grantor trust and not as an association
          taxable as a corporation.

                                       6
<PAGE>
 
                    (xi) The Common Securities have been duly
          authorized by the Declaration and, when issued and delivered
          by the Trust to the Company against payment therefor as
          described in the Prospectus, will be validly issued and will
          represent undivided beneficial interests in the assets of
          the Trust; the issuance of the Common Securities is not
          subject to preemptive or other similar rights; and at the
          Closing Time all of the issued and outstanding Common
          Securities of the Trust will be directly owned by the
          Company free and clear of any security interest, mortgage,
          pledge, lien, encumbrance, claim or equitable right.

                    (xii)     As of the Closing Time, the Capital
          Securities will have been duly authorized by the Trust and,
          when issued and delivered against payment therefor as
          provided herein, will be validly issued and fully paid and
          non-assessable undivided beneficial interests in the assets
          of the Trust and will conform in all material respects to
          the description thereof contained in the Prospectus and the
          issuance of the Capital Securities will not be subject to
          preemptive or other similar rights.

                    (xiii)    This Agreement has been duly authorized,
          executed and delivered by the Offerors.

                    (xiv)     The Declaration has been qualified under
          the 1939 Act and has been duly authorized by the Company
          and, at the Closing Time, will have been duly executed and
          delivered by the Company and the Trustees, and assuming due
          authorization, execution and delivery of the Declaration by
          the Trustees, the Declaration will, at the Closing Time, be
          a valid and binding obligation of the Company, enforceable
          against the Company in accordance with its terms, except to
          the extent that enforcement thereof may be limited by the
          receivership, conservatorship and supervisory powers of bank
          regulatory agencies generally as well as to bankruptcy,
          insolvency, reorganization, moratorium or other similar laws
          affecting creditors' rights generally or by general
          principles of equity (regardless of whether enforcement is
          considered in a proceeding at law or in equity) and the
          availability of equitable remedies (collectively, the
          "Enforceability Exceptions").

                    (xv) The Capital Securities Guarantee Agreement
          has been qualified under the 1939 Act; each of the Guarantee
          Agreements has been duly authorized by the Company and, at
          the Closing Time, will have been duly executed and delivered
          by the Company and will constitute a valid and binding
          obligation of the Company, enforceable against the Company
          in accordance with its terms, except to the extent that
          enforcement thereof may be limited by the Enforceability
          Exceptions.

                    (xvi)     The Indenture  has been qualified under
          the 1939 Act and has been duly authorized by the Company
          and, at the Closing Time, will have been duly executed and
          delivered by the Company and will constitute a valid and
          binding agreement of the Company, enforceable against the
          Company in accordance with its terms except to the extent
          that enforcement thereof may be limited by the
          Enforceability Exceptions.

                                       7
<PAGE>
 
                    (xvii)    The Subordinated Debentures have been
          duly authorized by the Company and, at the Closing Time,
          will have been duly executed by the Company and, when
          authenticated in the manner provided for in the Indenture
          and delivered against payment therefor as described in the
          Prospectus, will constitute valid and binding obligations of
          the Company, enforceable against the Company in accordance
          with their terms except to the extent that enforcement
          thereof may be limited by the Enforceability Exceptions; and
          the Subordinated Debentures will be in the form contemplated
          by, and entitled to the benefits of, the Indenture and will
          conform in all material respects to the description thereof
          in the Prospectus.

                    (xviii)   Each of the Administrative Trustees of
          the Trust is an officer of the Company or BankBoston and has
          been duly authorized by the Company to execute and deliver
          the Declaration.

                    (xix)     The Trust is not, and following
          consummation of the transactions contemplated hereby will
          not be, an "investment company" or a company "controlled" by
          an "investment company" which is required to be registered
          under the Investment Company Act of 1940, as amended (the
          "1940 Act").

                    (xx) The Operative Documents conform in all
          material respects to the summary descriptions thereof
          contained in the Prospectus.

                    (xxi)     None of the Trust, the Company nor any
          Significant Subsidiary is in default in the performance or
          observance of any obligation, agreement, covenant or
          condition contained in any contract, indenture, mortgage,
          loan agreement, note, lease or other agreement or instrument
          to which it is a party or by which it may be bound or to
          which any of its properties may be subject, except for such
          defaults that would not have a material adverse effect on
          the condition (financial or otherwise), earnings, business
          affairs or business prospects of the Company and its
          subsidiaries, considered as one enterprise; the execution
          and delivery of the Operative Documents by the Trust or the
          Company, as the case may be, the issuance and delivery of
          the Securities, the consummation by the Offerors of the
          transactions contemplated in the Operative Documents, and
          compliance by the Offerors with the terms of the Operative
          Documents to which they are party have been duly authorized
          by all necessary corporate action on the part of the Company
          and, as at the Closing Time, will have been duly authorized
          by all necessary action on the part of the Trust, and do not
          and will not result in any violation of the charter or by-
          laws of the Company or any Significant Subsidiary or the
          Declaration or the trust certificate of the Trust filed with
          the State of Delaware on May 14, 1997 (the "Trust
          Certificate"), and do not and will not conflict with, or
          result in a breach of any of the terms or provisions of, or
          constitute a default under, or result in the creation or
          imposition of any lien, charge or encumbrance upon any
          property of assets of the Trust, the Company or any
          Significant Subsidiary under (A) any indenture, mortgage,
          loan agreement, note, lease or other agreement or instrument
          to which the Trust, the Company or any Significant
          Subsidiary is a party or by which it may be bound 

                                       8
<PAGE>
 
          or to which any of its properties may be subject, except 
          for such conflicts, breaches or defaults or liens, charges 
          or encumbrances that would not have a material adverse effect
          on the condition (financial or otherwise), earnings,
          business affairs or business prospects of the Trust, or the
          Company and its subsidiaries considered as one enterprise or
          (B) any existing applicable law, rule, regulation, judgment,
          order or decree of any government, governmental
          instrumentality or court, domestic or foreign, having
          jurisdiction over the Trust, the Company or any Significant
          Subsidiary or any of its properties.
             
                    (xxii)    No filing with, or authorization,
          approval, consent, license, order, registration,
          qualification or decree of, any court or governmental
          authority or agency, other than those that have been made or
          obtained, is necessary or required for the performance by
          the Company or the Trust of their obligations hereunder, in
          connection with the issuance and sale of the Capital
          Securities or the consummation of the transactions
          contemplated by the Operative Documents, except as have been
          previously made or obtained.

                    (xxiii)   To the best knowledge of the Offerors,
          no labor problem exists with employees of the Significant
          Subsidiaries or is imminent that could adversely affect the
          Trust, or the Company and its subsidiaries considered as one
          enterprise, and the Offerors are not aware of any existing
          or imminent labor disturbance by the employees of any of its
          or the Significant Subsidiaries' principal suppliers,
          contractors or customers that could be expected to
          materially adversely affect the condition (financial or
          otherwise), earnings, business affairs or business prospects
          of the Trust, or the Company and its subsidiaries considered
          as one enterprise.

                    (xxiv)    Except as disclosed in the Registration
          Statement, there is no action, suit or proceeding before or
          by any government, governmental instrumentality or court,
          domestic or foreign, now pending or, to the knowledge of the
          Company or the Trust, threatened against or affecting the
          Trust, or the Company or any Significant Subsidiary that is
          required to be disclosed in the Registration Statement or
          that, in the final outcome, could, in the judgment of the
          Company, result in any material adverse change in the
          condition (financial or otherwise), earnings, business
          affairs or business prospects of the Trust, or the Company
          and its subsidiaries considered as one enterprise, or that
          could materially and adversely affect the properties or
          assets of the Trust, or the Company and its subsidiaries
          considered as one enterprise, or that could adversely affect
          the consummation of the transactions contemplated in the
          Operative Documents; the aggregate liability or loss, if
          any, resulting from the final outcome of all pending legal
          or governmental proceedings to which the Trust, the Company
          or any Significant Subsidiary is a party or which affect any
          of its properties that are not described in the Registration
          Statement, including ordinary routine litigation incidental
          to its business, would not have a material adverse effect on
          the condition (financial or otherwise), earnings, business
          affairs or business prospects of the Trust, or the Company
          and its subsidiaries considered as one enterprise.

                                       9
<PAGE>
 
                    (xxv)     There are no contracts or documents
          which are required to be described in the Registration
          Statement, the Prospectus or the documents incorporated by
          reference therein or to be filed as exhibits thereto which
          have not been so described or filed as required. 

                    (xxvi)  The Offerors and the Significant
          Subsidiaries each owns or possesses, or can acquire on
          reasonable terms, adequate patents, patent licenses,
          trademarks, service marks and trade names necessary to carry
          on their businesses as presently conducted, and neither the
          Offerors nor any of the Significant Subsidiaries has
          received any notice of infringement of or conflict with
          asserted rights of others with respect to any patents,
          patent licenses, trademarks, service marks or trade names
          that, in the aggregate, if the subject of an unfavorable
          decision, ruling or finding, could materially adversely
          affect the condition (financial or otherwise), earnings,
          business affairs or business prospects of the Trust, or the
          Company and its subsidiaries considered as one enterprise.

                    (xxvii)  The Offerors and the Significant
          Subsidiaries each owns, possesses or has obtained all
          material governmental licenses, permits, certificates,
          consents, orders, approvals and other authorizations
          necessary to own or lease, as the case may be, and to
          operate its properties and to carry on its business as
          presently conducted, and neither the Offerors nor any
          Significant Subsidiary has received any notice of
          proceedings relating to revocation or modification of any
          such licenses, permits, certificates, consents, orders,
          approvals or authorizations that, in the aggregate, if the
          subject of an unfavorable decision, ruling or finding, could
          materially adversely affect the condition (financial or
          otherwise), earnings, business affairs or business prospects
          of the Trust, or the Company and its subsidiaries considered
          as one enterprise.
        
                    (xxviii)  The Offerors and the Significant
          Subsidiaries each has good and marketable title to all
          properties and assets described in the Prospectus as owned
          by it, free and clear of all liens, charges, encumbrances or
          restrictions, except such as (A) are described in the
          Prospectus or (B) are neither material in amount nor
          materially significant in relation to the business of the
          Trust, or the Company and its subsidiaries considered as one
          enterprise; and all of the leases and subleases material to
          the business of the Trust, and the Company and its
          subsidiaries considered as one enterprise, and under which
          the Offerors or any Significant Subsidiary holds properties
          described in the Prospectus, are in full force and effect,
          and neither the Offerors nor any Significant Subsidiary has
          any notice of any material claim of any sort that has been
          asserted by anyone adverse to the rights of the Offerors or
          any Significant Subsidiary under any of the leases or
          subleases mentioned above, or affecting or questioning the
          rights of such corporation to the continued possession of
          the leased or subleased premises under any such lease or
          sublease.

                                       10
<PAGE>
 
                    (xxix)  The Company has not taken and will not
          take, directly or indirectly, any action designed to, or
          that might be reasonably expected to, cause or result in
          stabilization or manipulation of the price of the
          Securities.

          (b)  Any certificate signed by any Trustee of the Trust or
     any duly authorized officer of the Company or any Significant
     Subsidiary and delivered to the Representatives or to counsel for
     the Underwriters shall be deemed a representation and warranty by
     the Trust or the Company, as the case may be, to each Underwriter
     as to the matters covered thereby.

          SECTION 2.     Sale and Delivery to Underwriters; Closing.

          (a)  On the basis of the representations and warranties
     herein contained and subject to the terms and conditions herein
     set forth, the Trust agrees to sell to each Underwriter,
     severally and not jointly, and each Underwriter, severally and
     not jointly, agrees to purchase from the Trust, at the price per
     Capital Security set forth in Schedule B, the number of Capital
     Securities set forth in Schedule A opposite the name of such
     Underwriter, plus any additional number of Capital Securities
     which such Underwriter may become obligated to purchase pursuant
     to the provisions of Section 10 hereof.

          (b)  Payment of the purchase price for, and delivery of
     certificates for, the Capital Securities shall be made at the
     offices of Skadden, Arps, Slate, Meagher & Flom LLP, 919 Third
     Avenue, New York, New York  10022, or at such other place as
     shall be agreed upon by the Representatives and the Offerors, at
     10:00 A.M. (Eastern time) on the third (fourth, if the pricing
     occurs after 4:30 P.M. (Eastern time) on any given day) business
     day after the date hereof (unless postponed in accordance with
     the provisions of Section 10), or such other time not later than
     ten business days after such date as shall be agreed upon by the
     Representatives and the Offerors (such time and date of payment
     and delivery being herein called "Closing Time").

          Payment shall be made to the Trust by wire transfer of
     immediately available funds to a bank account designated by the
     Trust against delivery to the Representatives for the respective
     accounts of the Underwriters of certificates for the Capital
     Securities to be purchased by them.  It is understood that each
     Underwriter has authorized the Representatives, for its account,
     to accept delivery of, receipt for, and make payment of the
     purchase price for, the Capital Securities which it has agreed to
     purchase.  Morgan Stanley, individually and not as representative
     of the Underwriters, may (but shall not be obligated to) make
     payment of the purchase price for the Capital Securities to be
     purchased by any Underwriter whose funds have not been received
     by the Closing Time, but such payment shall not relieve such
     Underwriter from its obligations hereunder.

          (c)   Certificates for the Capital Securities shall be in
     such denominations and registered in such names as the
     Representatives may request in writing at least one full business
     day before the Closing Time.  The Securities will be made
     available for examination and 

                                       11
<PAGE>
 
     packaging by the Representatives in The City of New York not 
     later than 10:00 A.M. (Eastern time) on the business day prior 
     to the Closing Time.

          (d)   As compensation to the Underwriters for their
     commitments hereunder and in view of the fact that the proceeds
     of the sale of the Capital Securities will be used to purchase
     Subordinated Debentures of the Company, the Company hereby agrees
     to pay at the Closing Time to Morgan Stanley in immediately
     available funds, for the accounts of the several Underwriters, a
     commission per Capital Security to be delivered by the Trust
     hereunder at the Closing Time as set forth in Schedule B.

          SECTION 3.     Covenants of the Offerors.  The Offerors
     covenant with each Underwriter as follows:

          (a)  The Offerors, subject to Section 3(b) hereof, will
     comply with the requirements of Rule 430A or Rule 434, as
     applicable, and will notify the Representatives immediately, and
     confirm the notice in writing, (i) when any post-effective
     amendment to the Registration Statement shall become effective,
     or any supplement to the Prospectus or any amended Prospectus
     shall have been filed, (ii) of the receipt of any comments from
     the Commission, (iii) of any request by the Commission for any
     amendment to the Registration Statement or any amendment or
     supplement to the Prospectus or for additional information, and
     (iv) of the issuance by the Commission of any stop order
     suspending the effectiveness of the Registration Statement or of
     any order preventing or suspending the use of any preliminary
     prospectus, or of the suspension of the qualification of the
     Securities for offering or sale in any jurisdiction, or of the
     initiation or threatening of any proceedings for any of such
     purposes.  The Offerors will promptly effect the filings
     necessary pursuant to Rule 424(b) and will take such steps as it
     deems necessary to ascertain promptly whether the form of
     prospectus transmitted for filing under Rule 424(b) was received
     for filing by the Commission and, in the event that it was not,
     it will promptly file such prospectus.  The Offerors will make
     every reasonable effort to prevent the issuance of any stop order
     and, if any stop order is issued, to obtain the lifting thereof
     at the earliest possible moment.

          (b)  The Offerors will give the Representatives notice of
     its intention to file or prepare any amendment to the
     Registration Statement (including any filing under Rule 462(b)),
     any Term Sheet or any amendment, supplement or revision to either
     the prospectus included in the Registration Statement at the time
     it became effective or to the Prospectus, whether pursuant to the
     1933 Act, the 1934 Act or otherwise, will furnish the
     Representatives with copies of any such documents a reasonable
     amount of time prior to such proposed filing or use, as the case
     may be, and will not file or use any such document without the
     consent of the Representatives, which consent shall not be
     unreasonably withheld.

          (c)  The Offerors have furnished or will deliver to the
     Representatives and counsel for the Underwriters, without charge,
     signed copies of the Registration Statement as originally filed
     and of each amendment thereto (including exhibits filed therewith
     or incorporated by reference therein and documents incorporated
     or deemed to be incorporated by reference therein) and 

                                       12
<PAGE>
 
     signed copies of all consents and certificates of experts, and will 
     also deliver to the Representatives, without charge, a conformed copy
     of the Registration Statement as originally filed and of each
     amendment thereto (without exhibits) for each of the
     Underwriters.  The copies of the Registration Statement and each
     amendment thereto furnished to the Underwriters will be identical
     to the electronically transmitted copies thereof filed with the
     Commission pursuant to EDGAR, except to the extent permitted by
     Regulation S-T.

          (d)  The Offerors will furnish to each Underwriter, without
     charge, during the period when the Prospectus is required to be
     delivered under the 1933 Act or the 1934 Act, such number of
     copies of the Prospectus (as amended or supplemented) as such
     Underwriter may reasonably request.  The Prospectus and any
     amendments or supplements thereto furnished to the Underwriters
     will be identical to the electronically transmitted copies
     thereof filed with the Commission pursuant to EDGAR, except to
     the extent permitted by Regulation S-T.

          (e)   The Offerors will comply with the 1933 Act,  the 1933
     Act Regulations, the 1934 Act, the 1934 Act Regulations, the 1939
     Act and the 1939 Act Regulations so as to permit the completion
     of the distribution of the Capital Securities as contemplated in
     this Agreement and in the Prospectus.  If at any time when a
     prospectus is required by the 1933 Act to be delivered in
     connection with sales of the Capital Securities, any event shall
     occur or condition shall exist as a result of which it is
     necessary, in the reasonable opinion of counsel for the
     Underwriters or for the Offerors, to amend the Registration
     Statement or amend or supplement the Prospectus in order that the
     Prospectus will not include any untrue statement of a material
     fact or omit to state a material fact necessary in order to make
     the statements therein not misleading in the light of the
     circumstances existing at the time it is delivered to a
     purchaser, or if it shall be necessary, in the opinion of such
     counsel, at any such time to amend the Registration Statement or
     amend or supplement the Prospectus in order to comply with the
     requirements of the 1933 Act or the 1933 Act Regulations, the
     Offerors will promptly prepare and file with the Commission,
     subject to Section 3(b), such amendment or supplement as may be
     necessary to correct such statement or omission or to make the
     Registration Statement or the Prospectus comply with such
     requirements, and the Offerors will furnish to the Underwriters
     such number of copies of such amendment or supplement as the
     Underwriters may reasonably request.

          (f)   The Offerors will use their best efforts, in
     cooperation with the Underwriters, to qualify the Capital
     Securities for offering and sale under the applicable securities
     laws of such states and other jurisdictions as the
     Representatives may designate and to maintain such qualifications
     in effect for a period of not less than one year from the later
     of the effective date of the Registration Statement and any Rule
     462(b) Registration Statement; provided, however, that the
     Offerors shall not be obligated to file any general consent to
     service of process or to qualify as a foreign corporation or as a
     dealer in securities in any jurisdiction in which it is not so
     qualified or to subject itself to taxation in respect of doing
     business in any jurisdiction in which it is not otherwise so
     subject.  In each jurisdiction in which the Capital Securities
     have been so qualified, the Offerors will file such statements
     and reports as may be required by the laws of such jurisdiction
     to continue such qualification in effect for a period of not less
     than one year from the effective date of the Registration
     Statement and any Rule 462(b) Registration 

                                       13
<PAGE>
 
     Statement.  The Offerors will also supply the Underwriters with 
     such information as is necessary for the determination of the 
     legality of the Capital Securities for investment under the laws 
     of such jurisdictions as the Underwriters may request.

          (g)  The Company and the Trust will make generally available
     to their securityholders as soon as practicable an earnings
     statement for the purposes of, and to provide the benefits
     contemplated by, the last paragraph of Section 11(a) of the 1933
     Act.

          (h)  The Offerors shall take all reasonable action necessary
     to enable Standard & Poor's Ratings Services, a division of
     McGraw Hill, Inc. ("S&P"), and Moody's Investors Service, Inc.
     ("Moody's") to provide their respective credit ratings of the
     Capital Securities.

          (i)  The Offerors will cooperate with the Underwriters and
     use their best efforts to permit the Capital Securities to be
     eligible for clearance and settlement through the facilities of
     DTC.

          (j)  The Trust will use the net proceeds received by it from
     the sale of the Capital Securities; and the Company will use the
     proceeds received by it from the sale of the Subordinated
     Debentures, in the manners specified in the Prospectus under "Use
     of Proceeds".

          (k)  Prior to the Closing Time, neither the Trust nor the
     Company will, without the prior written consent of Morgan
     Stanley, directly or indirectly, issue, sell, offer or agree to
     sell, grant any option for the sale of, or otherwise dispose of,
     Capital Securities, any security convertible into exchangeable or
     exercisable for Capital Securities or the Subordinated Debentures
     or any debt securities substantially similar (including
     provisions with respect to the deferral of interest) to the
     Subordinated Debentures or any equity security substantially
     similar to the Capital Securities (except for the Securities
     issued pursuant to this Agreement).

          (l)  The Company, during the period when the Prospectus is
     required to be delivered under the 1933 Act or the 1934 Act, will
     file all documents required to be filed with the Commission
     pursuant to the 1934 Act within the time periods required by the
     1934 Act and the 1934 Act Regulations.

          SECTION 3A. Covenants of the Underwriters.  Each of the
     Underwriters represents and agrees as follows:

          (a)  The Underwriters will comply with the provisions of
     Rule 2810 of the Conduct Rules of the National Association of
     Securities Dealers, Inc. (the "NASD"), including, without
     limitation, Sections (b)(2)(B) and (b)(3)(D) thereof.

          SECTION 4.     Payment of Expenses.  

          (a)  Expenses.  The Company will pay all expenses incident
     to the performance of its obligations under this Agreement,
     including (i) the preparation, printing and filing of the

                                       14
<PAGE>
 
     Registration Statement (including financial statements and any
     schedules or exhibits and any document incorporated therein by
     reference) and of each amendment thereto, (ii) the preparation,
     printing and delivery to the Underwriters of this Agreement, the
     Operative Documents and such other documents as may be required
     in connection with the offering, purchase, sale and delivery of
     the Securities, (iii) the preparation, issuance and delivery of
     the certificates for the Capital Securities to the Underwriters,
     (iv) the fees and disbursements of the Company's counsel,
     accountants and other advisors, (v) rating agency fees, (vi) the
     fees and expenses of any trustee appointed under any of the
     Operative Documents, including the fees and disbursements of
     counsel for such trustees in connection with the Operative
     Documents, (vii) the qualification of the Capital Securities
     under securities laws in accordance with the provisions of
     Section 3(f) hereof, including filing fees and the reasonable
     fees and disbursements of counsel for the Underwriters in
     connection therewith and in connection with the preparation of
     the Blue Sky Survey and any supplement thereto, (viii) the
     printing and delivery to the Underwriters of copies of each
     preliminary prospectus, any Term Sheets and the Prospectus and
     any amendments or supplements thereto, (ix) the preparation,
     printing and delivery to the Underwriters of copies of the Blue
     Sky Survey and any supplement thereto, (x) the filing fees
     incident to, and the reasonable fees and disbursements of counsel
     to the Underwriters in connection with, the review, if any, by
     the NASD of the terms of the sale of the Securities, (xi) the
     fees and expenses of any transfer agent or registrar for the
     Securities, and (xii) the cost of qualifying the Capital
     Securities with DTC.

          (b)  Termination of Agreement.  If this Agreement is
     terminated by the Representatives in accordance with the
     provisions of Section 5 or Section 9(a)(i) hereof, the Company
     shall reimburse the Underwriters for all of their out-of-pocket
     expenses, including the reasonable fees and disbursements of
     Skadden, Arps, Slate, Meagher & Flom LLP, counsel for the
     Underwriters.

          SECTION 5.     Conditions of Underwriters' Obligations.  The
     obligations of the several Underwriters hereunder are subject to
     the accuracy of the representations and warranties of the
     Offerors contained in Section 1 hereof or in certificates of any
     Trustee of the Trust, officer of the Company or any of its
     subsidiaries delivered pursuant to the provisions hereof, to the
     performance by the Offerors of their obligations hereunder, and
     to the following further conditions:

          (a)  Effectiveness of Registration Statement.  The
     Registration Statement, including any Rule 462(b) Registration
     Statement, has become effective and at Closing Time no stop order
     suspending the effectiveness of the Registration Statement shall
     have been issued under the 1933 Act or proceedings therefor
     initiated or threatened by the Commission, and any request on the
     part of the Commission for additional information shall have been
     complied with to the reasonable satisfaction of counsel to the
     Underwriters.  A prospectus containing the Rule 430A Information
     shall have been filed with the Commission in accordance with Rule
     424(b) (or a post-effective amendment providing such information
     shall have been filed and declared effective in accordance with
     the requirements of Rule 430A) or, if the Offerors have elected
     to rely upon 

                                       15
<PAGE>
 
     Rule 434, a Term Sheet shall have been filed with the Commission 
     in accordance with Rule 424(b).

          (b)  Opinion of Outside Counsel for Offerors.  At the
     Closing Time, the Underwriters shall have received the favorable
     opinion, dated as of the Closing Time, of Brown & Wood LLP,
     counsel for the Company, in form and substance reasonably
     satisfactory to counsel for the Underwriters.

          (c)  Opinion of General Counsel.  At the Closing Time, the
     Underwriters shall have received the favorable opinion, dated as
     of the Closing Time, of Gary A. Spiess, General Counsel for the
     Company, in form and substance reasonably satisfactory to counsel
     for the Underwriters.

          (d)  Opinion of Special Delaware Counsel for Offerors.  If
     the opinion referred to in Section 5(b) does not cover applicable
     matters of Delaware law, at the Closing Time, the Underwriters
     shall have received the favorable opinion, dated as of the
     Closing Time, of special Delaware counsel to the Offerors, in
     form and substance reasonably satisfactory to counsel for the
     Underwriters.

          (e)  Opinion of Counsel for The Bank of New York.  At the
     Closing Time, the Underwriters shall have received the favorable
     opinion, dated as of the Closing Time, of Emmet, Marvin & Martin,
     LLP, counsel to The Bank of New York, as Property Trustee under
     the Declaration, and Guarantee Trustee under the Capital
     Securities Guarantee Agreement, in form and substance reasonably
     satisfactory to counsel for the Underwriters.

          (f)  Opinion of Special Tax Counsel for the Offerors.  At
     the Closing Time, the Underwriters shall have received an
     opinion, dated as of the Closing Time, of Brown & Wood LLP,
     special tax counsel to the Offerors, that  (i) the Subordinated
     Debentures will be classified for United States federal income
     tax purposes as indebtedness of the Company,  (ii) the Trust will
     be classified for United States federal income tax purposes as a
     grantor trust and not as an association taxable as a corporation
     and  (iii) although the discussion set forth in the Prospectus
     under the heading "Certain Federal Income Tax Consequences" does
     not purport to discuss all possible United States federal income
     tax consequences of the purchase, ownership and disposition of
     the Capital Securities, such discussion constitutes, in all
     material respects, a fair and accurate summary of the United
     States federal income tax consequences of the purchase, ownership
     and disposition of the Capital Securities under current law. 
     Such opinion may be conditioned on, among other things, the
     initial and continuing accuracy of the facts, financial and other
     information, covenants and representations set forth in
     certificates of officers of the Company and other documents
     deemed necessary for such opinion.  

          (g)  Opinion of Counsel for Underwriters.  At the Closing
     Time, the Underwriters shall have received the favorable opinion,
     dated as of the Closing Time, of Skadden, Arps, Slate, Meagher &
     Flom LLP, counsel for the Underwriters, with respect to the
     incorporation and legal existence of the Company, the Capital
     Securities, the Indenture, the Capital Securities 

                                       16
<PAGE>
 
     Guarantee, this Agreement, the Prospectus and other related 
     matters as the Underwriters may require.  Such counsel may also 
     state that, insofar as such opinion involves factual matters, they 
     have relied, to the extent they deem proper, upon certificates of
     Trustees of the Trust, officers of the Company and its
     subsidiaries and certificates of public officials.

          (h)  Certificates.  At the Closing Time, there shall not
     have been, since the date hereof or since the respective dates as
     of which information is given in the Prospectus, any material
     adverse change in the condition, financial or otherwise, or in
     the earnings, business affairs or business prospects of the
     Trust, or the Company and its subsidiaries considered as one
     enterprise, whether or not arising in the ordinary course of
     business, and the Representatives shall have received a
     certificate of the Chairman, any Vice Chairman, the Chief
     Executive Officer, the President or any Vice President of the
     Company and of the chief financial officer, the chief accounting
     officer or the Executive Director, Global Treasury of the Company
     and a certificate of an Administrative Trustee of the Trust,
     dated as of the Closing Time, to the effect that (i) there has
     been no such material adverse change, (ii) the representations
     and warranties in Section 1 hereof were true and correct when
     made and are true and correct with the same force and effect as
     though expressly made at and as of the Closing Time, (iii) the
     Offerors have complied with all agreements and satisfied all
     conditions on their part to be performed or satisfied at or prior
     to the Closing Time, and (iv) no stop order suspending the
     effectiveness of the Registration Statement has been issued and
     no proceedings for that purpose have been instituted or are
     pending or, to each such officer's knowledge, are contemplated by
     the Commission.

          (i)  Accountant's Comfort Letter.  At the time of the
     execution of this Agreement, the Representatives shall have
     received from Coopers & Lybrand L.L.P. a letter dated such date,
     in form and substance satisfactory to the Representatives,
     together with signed or reproduced copies of such letter for each
     of the other Underwriters, containing statements and information
     of the type ordinarily included in accountants' "comfort letters"
     to underwriters with respect to the financial statements and
     certain financial information contained in the Registration
     Statement and the Prospectus.

          (j)  Bring-down Comfort Letter.  At the Closing Time, the
     Representatives shall have received from Coopers & Lybrand L.L.P.
     a letter, dated as of the Closing Time, to the effect that they
     reaffirm the statements made in the letter furnished pursuant to
     subsection (i) of this Section, except that the specified date
     referred to shall be a date not more than three business days
     prior to the Closing Time.

          (k)  Maintenance of Rating.  At the Closing Time, the
     Capital Securities shall be rated at least baa1 by Moody's and
     BBB by S&P, and the Trust shall have delivered to the
     Representatives a letter dated the Closing Time, from each such
     rating agency, or other evidence satisfactory to the
     Representatives, confirming that the Capital Securities have such
     ratings; and between the date of this Agreement and the Closing
     Time, there shall not have occurred a downgrading in the rating
     assigned to the Capital Securities or any of the Company's other
     debt securities by any nationally recognized statistical rating
     organization, and no such organization 

                                       17
<PAGE>
 
     shall have publicly announced that it has under surveillance or 
     review, with possible negative implications, its rating of any of 
     the Capital Securities or any of the Company's other debt securities.

          (l)  Additional Documents.  At the Closing Time, counsel for
     the Underwriters shall have been furnished with such documents
     and opinions as they may require for the purpose of enabling them
     to pass upon the issuance and sale of the Capital Securities as
     herein contemplated, or in order to evidence the accuracy of any
     of the representations or warranties of the Offerors, or the
     fulfillment of any of the conditions, herein contained; and all
     proceedings taken by the Offerors in connection with the issuance
     and sale of the Capital Securities as herein contemplated shall
     be satisfactory in form and substance to the Representatives and
     counsel for the Underwriters.

          (m)  Termination of Agreement.  If any condition specified
     in this Section shall not have been fulfilled when and as
     required to be fulfilled, this Agreement may be terminated by the
     Representatives by notice to the Offerors at any time at or prior
     to the Closing Time, and such termination shall be without
     liability of any party to any other party except as provided in
     Section 4 and except that Sections 6, 7 and 8 shall survive any
     such termination and remain in full force and effect.

          SECTION 6.     Indemnification.

          (a)  Indemnification of Underwriters.  The Offerors agree to
     jointly and severally indemnify and hold harmless each
     Underwriter and each person, if any, who controls any Underwriter
     within the meaning of Section 15 of the 1933 Act or Section 20 of
     the 1934 Act as follows:

               (i)  against any and all loss, liability, claim, damage
          and expense whatsoever, as incurred, arising out of any
          untrue statement or alleged untrue statement of a material
          fact contained in the Registration Statement (or any
          amendment thereto), including the Rule 430A Information and
          the Rule 434 Information, if applicable, or the omission or
          alleged omission therefrom of a material fact required to be
          stated therein or necessary to make the statements therein
          not misleading or arising out of any untrue statement or
          alleged untrue statement of a material fact contained in any
          preliminary prospectus or the Prospectus (or any amendment
          or supplement thereto), or the omission or alleged omission
          therefrom of a material fact necessary in order to make the
          statements therein, in the light of the circumstances under
          which they were made, not misleading;

               (ii) against any and all loss, liability, claim, damage
          and expense whatsoever, as incurred, to the extent of the
          aggregate amount paid in settlement of any litigation, or
          any investigation or proceeding by any governmental agency
          or body, commenced or threatened, or of any claim whatsoever
          based upon any such untrue statement or omission, or any
          such alleged untrue statement or omission; provided that
          (subject to 

                                       18
<PAGE>
 
          Section 6(d) below) any such settlement is effected with the 
          written consent of the Offerors; and

               (iii)     against any and all expense whatsoever, as
          incurred (including the fees and disbursements of counsel
          chosen by Morgan Stanley), reasonably incurred in
          investigating, preparing or defending against any
          litigation, or any investigation or proceeding by any
          governmental agency or body, commenced or threatened, or any
          claim whatsoever based upon any such untrue statement or
          omission, or any such alleged untrue statement or omission,
          to the extent that any such expense is not paid under (i) or
          (ii) above;

     provided, however, that this indemnity agreement shall not apply
     to any loss, liability, claim, damage or expense to the extent
     arising out of any untrue statement or omission or alleged untrue
     statement or omission made in reliance upon and in conformity
     with written information furnished to the Offerors by any
     Underwriter through Morgan Stanley  expressly for use in the
     Registration Statement (or any amendment thereto), including the
     Rule 430A Information and the Rule 434 Information, if
     applicable, or any preliminary prospectus or the Prospectus (or
     any amendment or supplement thereto).

          (b)  Indemnification of Offerors, Directors and Officers. 
     Each Underwriter severally agrees to indemnify and hold harmless
     the Offerors, their respective directors or trustees, the
     Company's officers who signed the Registration Statement, and
     each person, if any, who controls the Offerors within the meaning
     of Section 15 of the 1933 Act or Section 20 of the 1934 Act
     against any and all loss, liability, claim, damage and expense
     described in the indemnity contained in subsection (a) of this
     Section, as incurred, but only with respect to untrue statements
     or omissions, or alleged untrue statements or omissions, made in
     the Registration Statement (or any amendment thereto), including
     the Rule 430A Information and the Rule 434 Information, if
     applicable, or any preliminary prospectus or the Prospectus (or
     any amendment or supplement thereto) in reliance upon and in
     conformity with written information furnished to the Offerors by
     such Underwriter through Morgan Stanley expressly for use in
     Registration Statement (or any amendment thereto) or such
     preliminary prospectus or the Prospectus (or any amendment or
     supplement thereto).

          (c)  Actions against Parties; Notification.  Each
     indemnified party shall give notice as promptly as reasonably
     practicable to each indemnifying party of any action commenced
     against it in respect of which indemnity may be sought hereunder,
     but failure to so notify an indemnifying party shall not relieve
     such indemnifying party from any liability hereunder to the
     extent it is not materially prejudiced as a result thereof and in
     any event shall not relieve it from any liability which it may
     have otherwise than on account of this indemnity agreement.  In
     the case of parties indemnified pursuant to Section 6(a) above,
     counsel to the indemnified parties shall be selected by Morgan
     Stanley, and, in the case of parties indemnified pursuant to
     Section 6(b) above, counsel to the indemnified parties shall be
     selected by the Offerors.  An indemnifying party may participate
     at its own expense in the defense of any such action; provided,
     however, that counsel to the indemnifying party shall not (except
     with the consent of 

                                       19
<PAGE>
 
     the indemnified party) also be counsel to the indemnified party.  
     In no event shall the indemnifying parties be liable for fees 
     and expenses of more than one counsel (in addition to any local 
     counsel) separate from their own counsel for all indemnified parties 
     in connection with any one action or separate but similar or related 
     actions in the same jurisdiction arising out of the same general 
     allegations or circumstances.  No indemnifying party shall, without 
     the prior written consent of the indemnified parties, settle or 
     compromise or consent to the entry of any judgment with respect to 
     any litigation, or any investigation or proceeding by any governmental 
     agency or body, commenced or threatened, or any claim whatsoever in 
     respect of which indemnification or contribution could be sought under 
     this Section 6 or Section 7 hereof (whether or not the indemnified
     parties are actual or potential parties thereto), unless such
     settlement, compromise or consent (i) includes an unconditional
     release of each indemnified party from all liability arising out
     of such litigation, investigation, proceeding or claim and (ii)
     does not include a statement as to or an admission of fault,
     culpability or a failure to act by or on behalf of any
     indemnified party.

          (d)  Settlement without Consent if Failure to Reimburse. 
     Notwithstanding the last sentence of Section 6(c), if at any time
     an indemnified party shall have requested an indemnifying party
     to reimburse the indemnified party for fees and expenses of
     counsel, such indemnifying party agrees that it shall be liable
     for any settlement effected without its written consent if (i)
     such settlement is entered into more than 45 days after receipt
     by such indemnifying party of the aforesaid request, (ii) such
     indemnifying party shall have received notice of the terms of
     such settlement at least 30 days prior to such settlement being
     entered into and (iii) such indemnifying party shall not have
     reimbursed such indemnified party in accordance with such request
     prior to the date of such settlement; provided that an
     indemnifying party shall not be liable for any such settlement
     effected without its consent if such indemnifying party (1)
     reimburses such indemnified party in accordance with such request
     to the extent it considers such request to be reasonable and (2)
     provides written notice to the indemnified party substantiating
     the unpaid balance as unreasonable, in each case prior to the
     date of such settlement. 

          SECTION 7.     Contribution.  In order to provide for just
     and equitable contribution in circumstances under which the
     indemnification provided for in Section 6 hereof is for any
     reason held to be unenforceable by an indemnified party in
     respect of any losses, liabilities, claims, damages or expenses
     referred to therein, then each indemnifying party shall
     contribute to the aggregate amount of such losses, liabilities,
     claims, damages and expenses incurred by such indemnified party,
     as incurred, in such proportion as is appropriate to reflect the
     relative benefits received by the Offerors on the one hand and
     the Underwriters on the other hand from the offering of the
     Capital Securities pursuant to this Agreement.

          The relative benefits received by the Offerors on the one
     hand and the Underwriters on the other hand in connection with
     the offering of the Capital Securities pursuant to this Agreement
     shall be deemed to be in the same respective proportions as the
     total net proceeds from the offering of the Capital Securities
     pursuant to this Agreement (before deducting expenses) received
     by the Offerors and the total commission received by the
     Underwriters, bear to the aggregate initial public offering price
     of the Capital Securities.

                                       20
<PAGE>
 
          The Offerors and the Underwriters agree that it would not be
     just and equitable if contribution pursuant to this Section 7
     were 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 account of the equitable
     considerations referred to above in this Section 7.  The
     aggregate amount of losses, liabilities, claims, damages and
     expenses incurred by an indemnified party and referred to above
     in this Section 7 shall be deemed to include any legal or other
     expenses reasonably incurred by such indemnified party in
     investigating, preparing or defending against any litigation, or
     any investigation or proceeding by any governmental agency or
     body, commenced or threatened, or any claim whatsoever based upon
     any such untrue or alleged untrue statement or omission or
     alleged omission.

          Notwithstanding the provisions of this Section 7, no
     Underwriter shall be required to contribute any amount in excess
     of the amount by which the total price at which the Capital
     Securities underwritten by it and distributed to the public were
     offered to the public exceeds the amount of any damages which
     such Underwriter has otherwise been required to pay by reason of
     such 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 1933 Act) shall be entitled to
     contribution from any person who was not guilty of such
     fraudulent misrepresentation.

          For purposes of this Section 7, each person, if any, who
     controls an Underwriter within the meaning of Section 15 of the
     1933 Act or Section 20 of the 1934 Act shall have the same rights
     to contribution as such Underwriter, and each director of the
     Company, each officer of the Company who signed the Registration
     Statement, each trustee of the Trust and each person, if any, who
     controls the Company within the meaning of Section 15 of the 1933
     Act or Section 20 of the 1934 Act shall have the same rights to
     contribution as the Company.  The Underwriters' respective
     obligations to contribute pursuant to this Section 7 are several
     in proportion to the number of Capital Securities set forth
     opposite their respective names in Schedule A hereto and not
     joint.

          SECTION 8.     Representations, Warranties and Agreements to
     Survive Delivery.  All representations, warranties and agreements
     contained in this Agreement or in certificates of officers of the
     Company or trustees of the Trust submitted pursuant hereto shall
     remain operative and in full force and effect, regardless of any
     investigation made by or on behalf of any Underwriter or
     controlling person, or by or on behalf of the Trust or the
     Company, and shall survive delivery of the Capital Securities to
     the Underwriters.

          SECTION 9.     Termination of Agreement.

          (a)  Termination; General.  The Representatives may
     terminate this Agreement, by notice to the Offerors, at any time
     at or prior to the Closing Time (i) if there has been, since the
     time of execution of this Agreement or since the respective dates
     as of which information is given in the Prospectus, any material
     adverse change in the condition, financial or otherwise, 

                                       21
<PAGE>
 
     or in the earnings, business affairs or business prospects of the 
     Trust or the Company and its subsidiaries considered as one enterprise,
     whether or not arising in the ordinary course of business, or
     (ii) if there has occurred any material adverse change in the
     financial markets in the United States or any outbreak of
     hostilities or escalation thereof or other calamity or crisis, in
     each case the effect of which is such as to make it, in the
     judgment of the Representatives, impracticable to market the
     Capital Securities or to enforce contracts for the sale of the
     Capital Securities, or (iii) if trading in any securities of the
     Company has been suspended or limited by the Commission, or if
     trading generally on the American Stock Exchange or the New York
     Stock Exchange or in the NASDAQ National Market System has been
     suspended or limited, or minimum or maximum prices for trading
     have been fixed, or maximum ranges for prices have been required,
     by any of said exchanges or by such system or by order of the
     Commission, the NASD or any other governmental authority, or (iv)
     if a banking moratorium has been declared by either Federal or
     New York authorities.

          (b)  Liabilities.  If this Agreement is terminated pursuant
     to this Section, such termination shall be without liability of
     any party to any other party except as provided in Section 4
     hereof, and provided further that Sections 1, 6, 7 and 8 shall
     survive such termination and remain in full force and effect.

          SECTION 10.    Default by One or More of the Underwriters. 
     If one or more of the Underwriters shall fail at the Closing Time
     to purchase the Capital Securities which it or they are obligated
     to purchase under this Agreement (the "Defaulted Securities"),
     the Representatives shall have the right, within 24 hours
     thereafter, to make arrangements for one or more of the
     non-defaulting Underwriters, or any other underwriters, to
     purchase all, but not less than all, of the Defaulted Securities
     in such amounts as may be agreed upon and upon the terms herein
     set forth; if, however, the Representatives shall not have
     completed such arrangements within such 24-hour period, then:

               (a)  if the number of Defaulted Securities does not
          exceed 10% of the total number of Capital Securities to be
          purchased hereunder, each of the non-defaulting Underwriters
          shall be obligated, severally and not jointly, to purchase
          the full amount thereof in the proportions that their
          respective underwriting obligations hereunder bear to the
          underwriting obligations of all non-defaulting Underwriters,
          or

               (b)  if the number of Defaulted Securities exceeds 10%
          of the total number of Capital Securities to be purchased
          hereunder, this Agreement shall terminate without liability
          on the part of any non-defaulting Underwriter.

          No action taken pursuant to this Section shall relieve any
     defaulting Underwriter from liability in respect of its default.

          In the event of any such default which does not result in a
     termination of this Agreement, either the Representatives or the
     Company shall have the right to postpone the Closing Time for a
     period not exceeding seven days in order to effect any required
     changes in the Registration 

                                       22
<PAGE>
 
     Statement or Prospectus or in any other documents or arrangements.  
     As used herein, the term "Underwriter" includes any person 
     substituted for an Underwriter under this Section 10.

          SECTION 11.    Notices.  All notices and other
     communications hereunder shall be in writing and shall be deemed
     to have been duly given if mailed or transmitted by any standard
     form of telecommunication.  Notices to the Underwriters shall be
     directed to the Representatives c/o Morgan Stanley at 1585
     Broadway, New York, New York 10036, attention of
     _________________________, with a copy to Skadden, Arps, Slate,
     Meagher & Flom LLP, 919 Third Avenue, New York, New York 10022,
     Attention of Gregory A. Fernicola, Esq.; notices to the Offerors
     shall be directed to BankBoston Corporation, 100 Federal Street,
     MA BOS 01-25-01, Boston, Massachusetts 02110, attention of Gary
     A. Spiess, General Counsel with a copy to Brown & Wood llp, One
     World Trade Center, 58th Floor, New York, New York 10048,
     Attention of Edward F. Petrosky, Esq.

          SECTION 12.    Parties.  This Agreement shall each inure to
     the benefit of and be binding upon the Underwriters and the
     Offerors and their respective successors.  Nothing expressed or
     mentioned in this Agreement is intended or shall be construed to
     give any person, firm or corporation, other than the Underwriters
     and the Offerors and their respective successors and the
     controlling persons and officers, directors and trustees referred
     to in Sections 6 and 7 and their heirs and legal representatives,
     any legal or equitable right, remedy or claim under or in respect
     of this Agreement or any provision herein contained.  This
     Agreement and all conditions and provisions hereof are intended
     to be for the sole and exclusive benefit of the Underwriters and
     the Offerors and their respective successors, and said
     controlling persons and officers, directors and trustees and
     their heirs and legal representatives, and for the benefit of no
     other person, firm or corporation.  No purchaser of Capital
     Securities from any Underwriter shall be deemed to be a successor
     by reason merely of such purchase.

          SECTION 13.    GOVERNING LAW AND TIME.  THIS AGREEMENT SHALL
     BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE
     STATE OF NEW YORK.

          SECTION 14.    Effect of Headings.  The Article and Section
     headings herein and the Table of Contents are for convenience
     only and shall not affect the construction hereof.

                                       23
<PAGE>
 
          If the foregoing is in accordance with your understanding of
     our agreement, please sign and return to the Company a
     counterpart hereof, whereupon this instrument, along with all
     counterparts, will become a binding agreement among the
     Underwriters and the Offerors in accordance with its terms.

                                        Very truly yours,

                                        BANKBOSTON CORPORATION

                                        By
                                          --------------------------
                                          Title:

                                        BANKBOSTON CAPITAL TRUST III

                                        By                             
                                          --------------------------
                                          Title:

      CONFIRMED AND ACCEPTED,
       as of the date first above
       written:

     MORGAN STANLEY & CO.
       INCORPORATED
     CS FIRST BOSTON CORPORATION
     LEHMAN BROTHERS INC.
     SALOMON BROTHERS INC

     By: MORGAN STANLEY & CO. INCORPORATED

     By                                                                
       -----------------------------------
          Authorized Signatory

     For themselves and as representative of the other Underwriters
     named in Schedule A hereto.

                                       24
<PAGE>
 
                                 SCHEDULE A

                                                          Number of    
         Name of Underwriter                        Capital Securities
         -------------------                        ------------------

      MORGAN STANLEY & CO. INCORPORATED . . . . . . .
      CS FIRST BOSTON CORPORATION . . . . . . . . . .
      LEHMAN BROTHERS INC.  . . . . . . . . . . . . .
      SALOMON BROTHERS INC  . . . . . . . . . . . . .   
                                                          --------
      Total . . . . . . . . . . . . . . . . . . . . .      250,000
                                                          ========



                                    Sch A-1
<PAGE>
 
                                 SCHEDULE B

                         BANKBOSTON CAPITAL TRUST III
                                    250,000
                       Floating Rate Capital Securities
              (Liquidation Amount of $1,000 Per Capital Security)

          1.   The initial public offering price for the Capital
     Securities, determined as provided in said Section 2, shall be $
     _________ per security.

          2.   The purchase price for the Capital Securities to be
     paid by the several Underwriters shall be $_______ per security,
     being an amount equal to the initial public offering price set
     forth above.

          3.   The commission for the Capital Securities to be paid by
     the Company to the Underwriters for their commitments hereunder
     shall be $_____ per Capital Security.


                                    Sch B-1

<PAGE>
                                                                EXHIBIT 4.1 


                            BANKBOSTON CORPORATION

                       ______________________________

                       ______________________________

                                   INDENTURE

                           DATED AS OF _______, 1997
                       ______________________________

                             THE BANK OF NEW YORK

                                  AS TRUSTEE

                       ______________________________

       FLOATING RATE JUNIOR SUBORDINATED DEFERRABLE INTEREST DEBENTURES
<PAGE>
 
     TIE-SHEET

          of provisions of Trust Indenture Act of 1939 with Indenture
     dated as of _______, 1997 between BankBoston Corporation and The
     Bank of New York, Trustee:

     ACT SECTION                                     INDENTURE SECTION

     310(a)(1) . . . . . . . . . . . . . . . . . . . . . . . . .  6.09
        (a)(2)   . . . . . . . . . . . . . . . . . . . . . . . .  6.09
     310(a)(3) . . . . . . . . . . . . . . . . . . . . . . . . . . N/A
        (a)(4) . . . . . . . . . . . . . . . . . . . . . . . . . . N/A
     310(a)(5) . . . . . . . . . . . . . . . . . . . . . .  6.10, 6.11
     310(b)  . . . . . . . . . . . . . . . . . . . . . . . . . . . N/A
     310(c)  . . . . . . . . . . . . . . . . . . . . . . . . . .  6.13
     311(a) and (b)  . . . . . . . . . . . . . . . . . . . . . . . N/A
     311(c)  . . . . . . . . . . . . . . . . . . . . . . 4.01, 4.02(a)
     312(a)  . . . . . . . . . . . . . . . . . . . . . . . . . .  4.02
     312(b) and (c)  . . . . . . . . . . . . . . . . . . . . . .  4.04
     313(a)  . . . . . . . . . . . . . . . . . . . . . . . . . .  4.04
     313(b)(1) . . . . . . . . . . . . . . . . . . . . . . . . .  4.04
     313(b)(2) . . . . . . . . . . . . . . . . . . . . . . . . .  4.04
     313(c)  . . . . . . . . . . . . . . . . . . . . . . . . . .  4.04
     313(d)  . . . . . . . . . . . . . . . . . . . . . . . . . .  4.04
     314(a)  . . . . . . . . . . . . . . . . . . . . . . . . . .  4.03
     314(b)  . . . . . . . . . . . . . . . . . . . . . . . . . . . N/A
     314(c)(1) and (2) . . . . . . . . . . . . . . . . . . . . .  6.07
     314(c)(3) . . . . . . . . . . . . . . . . . . . . . . . . . . N/A
     314(d)  . . . . . . . . . . . . . . . . . . . . . . . . . . . N/A
     314(e)  . . . . . . . . . . . . . . . . . . . . . . . . . .  6.07
     314(f)  . . . . . . . . . . . . . . . . . . . . . . . . . . . N/A
     315(a)(c) and (d) . . . . . . . . . . . . . . . . . . . . .  6.01
     315(b)  . . . . . . . . . . . . . . . . . . . . . . . . . .  5.08
     315(e)  . . . . . . . . . . . . . . . . . . . . . . . . . .  5.09
     316(a)(1)   . . . . . . . . . . . . . . . . . . . . . . . .  5.07
     316(a)(2)   . . . . . . . . . . . . . . . . . . . . . . . . . N/A
     316(a) last sentence  . . . . . . . . . . . . . . . . . . .  2.09
     316(b)  . . . . . . . . . . . . . . . . . . . . . . . . . .  9.02
     317(a)  . . . . . . . . . . . . . . . . . . . . . . . . . .  5.05
     317(b)  . . . . . . . . . . . . . . . . . . . . . . . . . .  6.05
     318(a)  . . . . . . . . . . . . . . . . . . . . . . . . . . 13.08

                                    
          THIS TIE-SHEET IS NOT PART OF THE INDENTURE AS EXECUTED.
<PAGE>
 
                             TABLE OF CONTENTS*

                                                                  Page

                                 ARTICLE I
                                DEFINITIONS

          SECTION 1.01.  Definitions . . . . . . . . . . . . . . .   1
          Additional Interest  . . . . . . . . . . . . . . . . . .   1
          Affiliate  . . . . . . . . . . . . . . . . . . . . . . .   1
          Allocable Amounts  . . . . . . . . . . . . . . . . . . .   2
          Authenticating Agent . . . . . . . . . . . . . . . . . .   2
          Bankruptcy Law . . . . . . . . . . . . . . . . . . . . .   2
          Board of Directors . . . . . . . . . . . . . . . . . . .   2
          Board Resolution . . . . . . . . . . . . . . . . . . . .   2
          Business Day . . . . . . . . . . . . . . . . . . . . . .   2
          Calculation Agent  . . . . . . . . . . . . . . . . . . .   3
          Capital Securities . . . . . . . . . . . . . . . . . . .   3
          Capital Securities Guarantee . . . . . . . . . . . . . .   3
          Commission . . . . . . . . . . . . . . . . . . . . . . .   3
          Common Securities  . . . . . . . . . . . . . . . . . . .   3
          Common Securities Guarantee  . . . . . . . . . . . . . .   3
          Common Stock . . . . . . . . . . . . . . . . . . . . . .   3
          Company  . . . . . . . . . . . . . . . . . . . . . . . .   3
          Company Request  . . . . . . . . . . . . . . . . . . . .   4
          Compounded Interest  . . . . . . . . . . . . . . . . . .   4
          Custodian  . . . . . . . . . . . . . . . . . . . . . . .   4
          Declaration  . . . . . . . . . . . . . . . . . . . . . .   4
          Default  . . . . . . . . . . . . . . . . . . . . . . . .   4
          Deferred Interest  . . . . . . . . . . . . . . . . . . .   4
          Definitive Securities  . . . . . . . . . . . . . . . . .   4
          Depositary . . . . . . . . . . . . . . . . . . . . . . .   4
          Determination Date . . . . . . . . . . . . . . . . . . .   4
          Dissolution Event  . . . . . . . . . . . . . . . . . . .   4
          Event of Default . . . . . . . . . . . . . . . . . . . .   4
          Exchange Act . . . . . . . . . . . . . . . . . . . . . .   4
          Extended Interest Payment Period . . . . . . . . . . . .   4
          Federal Reserve  . . . . . . . . . . . . . . . . . . . .   5
          Global Security  . . . . . . . . . . . . . . . . . . . .   5
          Indebtedness for Money Borrowed  . . . . . . . . . . . .   5
          Indebtedness Ranking on a Parity with the Securities . .   5
          Indebtedness Ranking Junior to the Securities  . . . . .   5
          Indenture  . . . . . . . . . . . . . . . . . . . . . . .   5
          Interest Payment Date  . . . . . . . . . . . . . . . . .   5
          Interest Period  . . . . . . . . . . . . . . . . . . . .   6
          LIBOR  . . . . . . . . . . . . . . . . . . . . . . . . .   6


  ----------------------
          *    THIS TABLE OF CONTENTS SHALL NOT, FOR ANY PURPOSE, BE
               DEEMED TO BE A PART OF THE INDENTURE.               

                                       i
<PAGE>
 
                                                                  Page

          London Business Day  . . . . . . . . . . . . . . . . . .   6
          Maturity Date  . . . . . . . . . . . . . . . . . . . . .   6
          Mortgage . . . . . . . . . . . . . . . . . . . . . . . .   6
          Non Book-Entry Capital Securities  . . . . . . . . . . .   6
          Officers . . . . . . . . . . . . . . . . . . . . . . . .   6
          Officers' Certificate  . . . . . . . . . . . . . . . . .   6
          Opinion of Counsel . . . . . . . . . . . . . . . . . . .   6
          Other Debentures . . . . . . . . . . . . . . . . . . . .   6
          Other Guarantees . . . . . . . . . . . . . . . . . . . .   6
          outstanding  . . . . . . . . . . . . . . . . . . . . . .   6
          Person . . . . . . . . . . . . . . . . . . . . . . . . .   7
          Predecessor Security . . . . . . . . . . . . . . . . . .   7
          Principal office of the Trustee  . . . . . . . . . . . .   7
          Redemption Price . . . . . . . . . . . . . . . . . . . .   7
          Regulatory Capital Event . . . . . . . . . . . . . . . .   7
          Responsible Officer  . . . . . . . . . . . . . . . . . .   8
          Reuters Page LIBO  . . . . . . . . . . . . . . . . . . .   8
          Securities . . . . . . . . . . . . . . . . . . . . . . .   8
          Securities Act . . . . . . . . . . . . . . . . . . . . .   8
          Securityholder . . . . . . . . . . . . . . . . . . . . .   8
          holder of Securities . . . . . . . . . . . . . . . . . .   8
          Security Register  . . . . . . . . . . . . . . . . . . .   8
          Senior Indebtedness  . . . . . . . . . . . . . . . . . .   8
          Special Event  . . . . . . . . . . . . . . . . . . . . .   8
          Subsidiary . . . . . . . . . . . . . . . . . . . . . . .   8
          Tax Event  . . . . . . . . . . . . . . . . . . . . . . .   9
          Trust  . . . . . . . . . . . . . . . . . . . . . . . . .   9
          Trustee  . . . . . . . . . . . . . . . . . . . . . . . .   9
          Trust Indenture Act of 1939  . . . . . . . . . . . . . .   9
          Trust Securities . . . . . . . . . . . . . . . . . . . .  10
          U.S. Government Obligations  . . . . . . . . . . . . . .  10

                                 ARTICLE II
                                 SECURITIES

          SECTION 2.01.  Forms Generally . . . . . . . . . . . . .  10
          SECTION 2.02.  Execution and Authentication  . . . . . .  10
          SECTION 2.03.  Form and Payment  . . . . . . . . . . . .  11
          SECTION 2.04.  [Reserved]. . . . . . . . . . . . . . . .  11
          SECTION 2.05.  Global Security . . . . . . . . . . . . .  11
          SECTION 2.06.  Interest  . . . . . . . . . . . . . . . .  13
          SECTION 2.07.  Transfer and Exchange . . . . . . . . . .  16
          SECTION 2.08.  Replacement Securities  . . . . . . . . .  17
          SECTION 2.09.  Treasury Securities . . . . . . . . . . .  17
          SECTION 2.10.  Temporary Securities. . . . . . . . . . .  17
          SECTION 2.11.  Cancellation  . . . . . . . . . . . . . .  18
          SECTION 2.12.  Defaulted Interest  . . . . . . . . . . .  18
          SECTION 2.13.  CUSIP Numbers . . . . . . . . . . . . . .  19

                                       ii
<PAGE>
 
                                                                  Page


                                ARTICLE III
                    PARTICULAR COVENANTS OF THE COMPANY

          SECTION 3.01.  Payment of Principal, Premium and
                         Interest  . . . . . . . . . . . . . . . .  20
          SECTION 3.02.  Offices for Notices and Payments, etc.  .  20
          SECTION 3.03.  Appointments to Fill Vacancies in
                         Trustee's Office  . . . . . . . . . . . .  21
          SECTION 3.04.  Provision as to Paying Agent  . . . . . .  21
          SECTION 3.05.  Certificate to Trustee  . . . . . . . . .  22
          SECTION 3.06.  Compliance with Consolidation
                         Provisions  . . . . . . . . . . . . . . .  22
          SECTION 3.07.  Limitation on Dividends . . . . . . . . .  22
          SECTION 3.08.  Covenants as to the Trust . . . . . . . .  23
          SECTION 3.09.  Payment of Expenses . . . . . . . . . . .  23
          SECTION 3.10.  Payment Upon Resignation or Removal . . .  24

                                 ARTICLE IV
                 SECURITYHOLDERS' LISTS AND REPORTS BY THE
                          COMPANY AND THE TRUSTEE

          SECTION 4.01.  Securityholders' Lists  . . . . . . . . .  25
          SECTION 4.02.  Preservation and Disclosure of Lists  . .  25
          SECTION 4.03.  Reports by Company  . . . . . . . . . . .  27
          SECTION 4.04.  Reports by the Trustee  . . . . . . . . .  28

                                 ARTICLE V
                REMEDIES OF THE TRUSTEE AND SECURITYHOLDERS
                            ON EVENT OF DEFAULT

          SECTION 5.01.  Events of Default . . . . . . . . . . . .  28
          SECTION 5.02.  Payment of Securities on Default; Suit
                         Therefor  . . . . . . . . . . . . . . . .  31
          SECTION 5.03.  Application of Moneys Collected by
                         Trustee . . . . . . . . . . . . . . . . .  33
          SECTION 5.04.  Proceedings by Securityholders  . . . . .  33
          SECTION 5.05.  Proceedings by Trustee  . . . . . . . . .  34
          SECTION 5.06.  Remedies Cumulative and Continuing  . . .  35
          SECTION 5.07.  Direction of Proceedings and Waiver of
                         Defaults by Majority of Securityholders .  35
          SECTION 5.08.  Notice of Defaults  . . . . . . . . . . .  36
          SECTION 5.09.  Undertaking to Pay Costs  . . . . . . . .  36

                                 ARTICLE VI
                           CONCERNING THE TRUSTEE

          SECTION 6.01.  Duties and Responsibilities of Trustee  .  37
          SECTION 6.02.  Reliance on Documents, Opinions, etc. . .  38
          SECTION 6.03.  No Responsibility for Recitals, etc.  . .  40

                                      iii
<PAGE>
 
                                                                  Page

          SECTION 6.04.  Trustee, Authenticating Agent, Paying
                         Agents, Transfer Agents or Registrar May
                         Own Securities  . . . . . . . . . . . . .  40
          SECTION 6.05.  Moneys to be Held in Trust  . . . . . . .  41
          SECTION 6.06.  Compensation and Expenses of Trustee  . .  41
          SECTION 6.07.  Officers' Certificate as Evidence . . . .  42
          SECTION 6.08.  Conflicting Interest of Trustee . . . . .  42
          SECTION 6.09.  Eligibility of Trustee  . . . . . . . . .  42
          SECTION 6.10.  Resignation or Removal of Trustee . . . .  43
          SECTION 6.11.  Acceptance by Successor Trustee . . . . .  44
          SECTION 6.12.  Succession by Merger, etc.  . . . . . . .  45
          SECTION 6.13.  Limitation on Rights of Trustee as a
                         Creditor  . . . . . . . . . . . . . . . .  46
          SECTION 6.14.  Authenticating Agents . . . . . . . . . .  46

                                ARTICLE VII
                       CONCERNING THE SECURITYHOLDERS

          SECTION 7.01.  Action by Securityholders . . . . . . . .  47
          SECTION 7.02.  Proof of Execution by Securityholders . .  48
          SECTION 7.03.  Who Are Deemed Absolute Owners  . . . . .  48
          SECTION 7.04.  Securities Owned by Company Deemed Not
                         Outstanding . . . . . . . . . . . . . . .  49
          SECTION 7.05.  Revocation of Consents; Future Holders
                         Bound . . . . . . . . . . . . . . . . . .  49

                                ARTICLE VIII
                         SECURITYHOLDERS' MEETINGS

          SECTION 8.01.  Purposes of Meetings  . . . . . . . . . .  50
          SECTION 8.02.  Call of Meetings by Trustee . . . . . . .  50
          SECTION 8.03.  Call of Meetings by Company or
                         Securityholders . . . . . . . . . . . . .  51
          SECTION 8.04.  Qualifications for Voting . . . . . . . .  51
          SECTION 8.05.  Regulations . . . . . . . . . . . . . . .  51
          SECTION 8.06.  Voting  . . . . . . . . . . . . . . . . .  52

                                 ARTICLE IX
                                 AMENDMENTS

          SECTION 9.01.  Without Consent of Securityholders  . . .  52
          SECTION 9.02.  With Consent of Securityholders . . . . .  54
          SECTION 9.03.  Compliance with Trust Indenture Act;
                         Effect of Supplemental Indentures . . . .  55
          SECTION 9.04.  Notation on Securities  . . . . . . . . .  56
          SECTION 9.05.  Evidence of Compliance of Supplemental
                         Indenture to be Furnished Trustee . . . .  56

                                       iv
<PAGE>
 
                                                                  Page


                                 ARTICLE X
              CONSOLIDATION, MERGER, SALE, CONVEYANCE AND LEASE

          SECTION 10.01. Company May Consolidate, etc., on
                         Certain Terms . . . . . . . . . . . . . .  56
          SECTION 10.02. Successor Corporation to be Substituted
                         for Company . . . . . . . . . . . . . . .  57
          SECTION 10.03. Opinion of Counsel to be Given Trustee  .  57

                                 ARTICLE XI
                  SATISFACTION AND DISCHARGE OF INDENTURE

          SECTION 11.01. Discharge of Indenture  . . . . . . . . .  58
          SECTION 11.02. Deposited Moneys and U.S. Government
                         Obligations to be Held in Trust by
                         Trustee . . . . . . . . . . . . . . . . .  58
          SECTION 11.03. Paying Agent to Repay Moneys Held . . . .  59
          SECTION 11.04. Return of Unclaimed Moneys  . . . . . . .  59
          SECTION 11.05. Defeasance Upon Deposit of Moneys or
                         U.S. Government Obligations . . . . . . .  59

                                ARTICLE XII
                  IMMUNITY OF INCORPORATORS, STOCKHOLDERS,
                           OFFICERS AND DIRECTORS

          SECTION 12.01. Indenture and Securities Solely
                         Corporate Obligations . . . . . . . . . .  61

                                ARTICLE XIII
                          MISCELLANEOUS PROVISIONS

          SECTION 13.01. Successors  . . . . . . . . . . . . . . .  62
          SECTION 13.02. Official Acts by Successor Corporation  .  62
          SECTION 13.03. Surrender of Company Powers . . . . . . .  62
          SECTION 13.04. Addresses for Notices, etc. . . . . . . .  62
          SECTION 13.05. Governing Law . . . . . . . . . . . . . .  62
          SECTION 13.06. Evidence of Compliance with Conditions
                         Precedent . . . . . . . . . . . . . . . .  63
          SECTION 13.07. Business Days . . . . . . . . . . . . . .  63
          SECTION 13.08. Trust Indenture Act to Control  . . . . .  63
          SECTION 13.09. Table of Contents, Headings, etc  . . . .  64
          SECTION 13.10. Execution in Counterparts . . . . . . . .  64
          SECTION 13.11. Separability  . . . . . . . . . . . . . .  64
          SECTION 13.12. Assignment  . . . . . . . . . . . . . . .  64
          SECTION 13.13. Acknowledgement of Rights . . . . . . . .  64

                                ARTICLE XIV
                        REDEMPTION OF SECURITIES  --
                    MANDATORY AND OPTIONAL SINKING FUND

                                       v
<PAGE>
 
                                                                  Page


          SECTION 14.01. Special Event Redemption  . . . . . . . .  65
          SECTION 14.02. Optional Redemption by Company  . . . . .  65
          SECTION 14.03. No Sinking Fund . . . . . . . . . . . . .  66
          SECTION 14.04. Notice of Redemption; Selection of
                         Securities  . . . . . . . . . . . . . . .  66
          SECTION 14.05. Payment of Securities Called for
                         Redemption  . . . . . . . . . . . . . . .  67

                                 ARTICLE XV
                        SUBORDINATION OF SECURITIES

          SECTION 15.01. Agreement to Subordinate  . . . . . . . .  68
          SECTION 15.02. Default on Senior Indebtedness  . . . . .  68
          SECTION 15.03. Liquidation; Dissolution; Bankruptcy  . .  69
          SECTION 15.04. Subrogation . . . . . . . . . . . . . . .  70
          SECTION 15.05. Trustee to Effectuate Subordination . . .  71
          SECTION 15.06. Notice by the Company . . . . . . . . . .  72
          SECTION 15.07. Rights of the Trustee; Holders of Senior
                         Indebtedness  . . . . . . . . . . . . . .  73
          SECTION 15.08. Subordination May Not Be Impaired . . . .  73

                                ARTICLE XVI
                    EXTENSION OF INTEREST PAYMENT PERIOD

          SECTION 16.01. Extension of Interest Payment Period  . .  74
          SECTION 16.02. Notice of Extension . . . . . . . . . . .  75

     EXHIBIT A . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

     Testimonium
     Signatures

                                       vi
<PAGE>
 
               THIS INDENTURE, dated as of _______, 1997, between
     BankBoston Corporation, a Massachusetts corporation (hereinafter
     sometimes called the "Company"), and The Bank of New York, a New
     York banking corporation, as trustee (hereinafter sometimes
     called the "Trustee"),

                           W I T N E S S E T H :

               In consideration of the premises, and the purchase of
     the Securities by the holders thereof, 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 I
                                DEFINITIONS

               SECTION 1.01.  Definitions.

               The terms defined in this Section 1.01 (except as
     herein otherwise expressly provided or unless the context
     otherwise requires) for all purposes of this Indenture shall have
     the respective meanings specified in this Section 1.01.  All
     other terms used in this Indenture which are defined in the Trust
     Indenture Act of 1939, as amended (the "Trust Indenture Act"), or
     which are by reference therein defined in the Securities Act,
     shall (except as herein otherwise expressly provided or unless
     the context otherwise requires) have the meanings assigned to
     such terms in said Trust Indenture Act and in said Securities Act
     as in force at the date of this Indenture as originally executed. 
     The following terms have the meanings given to them in the
     Declaration:  (i) Clearing Agency; (ii) Delaware Trustee;
     (iii) Capital Security Certificate; (iv) Property Trustee; (v)
     Administrative Trustees; (vi) Direct Action; and (vii) Purchase
     Agreement.  All accounting terms used herein and not expressly
     defined shall have the meanings assigned to such terms in
     accordance with generally accepted accounting principles and the
     term "generally accepted accounting principles" means such
     accounting principles as are generally accepted at the time of
     any computation.  The words "herein", "hereof" and "hereunder"
     and other words of similar import refer to this Indenture as a
     whole and not to any particular Article, Section or other
     subdivision.  Headings are used for convenience of reference only
     and do not affect interpretation.  The singular includes the
     plural and vice versa.

               "Additional Interest" shall have the meaning set forth
     in Section 2.06(d).

               "Affiliate" means, with respect to a specified Person,
     (a) any Person directly or indirectly owning, controlling or
<PAGE>
 
     holding the power to vote 10% or more of the outstanding voting
     securities or other ownership interests of the specified Person,
     (b) any Person 10% or more of whose outstanding voting securities
     or other ownership interests are directly or indirectly owned,
     controlled or held with power to vote by the specified Person,
     (c) any Person directly or indirectly controlling, controlled by,
     or under common control with the specified Person, (d) a
     partnership in which the specified Person is a general partner,
     (e) any officer or director of the specified Person, and (f) if
     the specified Person is an individual, any entity of which the
     specified Person is an officer, director or general partner.

               "Allocable Amounts," when used with respect to any
     Senior Indebtedness, means all amounts due or to become due on
     such Senior Indebtedness less, if applicable, any amount which
     would have been paid to, and retained by, the holders of such
     Senior Indebtedness (whether as a result of the receipt of
     payments by the holders of such Senior Indebtedness from the
     Company or any other obligor thereon or from any holders of, or
     trustee in respect of, other indebtedness that is subordinate and
     junior in right of payment to such Senior Indebtedness pursuant
     to any provision of such indebtedness for the payment over of
     amounts received on account of such indebtedness to the holders
     of such Senior Indebtedness or otherwise) but for the fact that
     such Senior Indebtedness is subordinate or junior in right of
     payment to (or subject to a requirement that amounts received on
     such Senior Indebtedness be paid over to obligees on) trade
     accounts payable or accrued liabilities arising in the ordinary
     course of business.

               "Authenticating Agent" shall mean any agent or agents
     of the Trustee which at the time shall be appointed and acting
     pursuant to Section 6.14.

               "Bankruptcy Law" shall mean Title 11, U.S. Code, or any
     similar Federal or state law for the relief of debtors.

               "Board of Directors" shall mean either the Board of
     Directors of the Company or any duly authorized committee of that
     board.

               "Board Resolution" shall mean a copy of a resolution
     certified by the Clerk or an Assistant Clerk of the Company to
     have been duly adopted by the Board of Directors and to be in
     full force and effect on the date of such certification, and
     delivered to the Trustee.

               "Business Day" shall mean, with respect to any
     Securities, any day other than a Saturday or a Sunday or a day on
     which banking institutions in The City of New York or Boston,
     Massachusetts are authorized or required by law or executive
     order to close.

                                       2
<PAGE>
 
               "Calculation Agent" shall mean The Bank of New York or
     any successor as shall be appointed by the Company.

               "Capital Securities" shall mean undivided beneficial
     interests in the assets of the Trust designated as the Floating
     Rate Capital Securities, which rank pari passu with the Common
     Securities issued by the Trust; provided, however, that if an
     Event of Default has occurred and is continuing, no payments in
     respect of Distributions on, or payments upon liquidation,
     redemption or otherwise with respect to, the Common Securities
     shall be made until the holders of the Capital Securities shall
     be paid in full the Distributions and the liquidation, redemption
     and other payments to which they are entitled.

               "Capital Securities Guarantee" shall mean any guarantee
     that the Company may enter into with The Bank of New York or
     other Persons that operate directly or indirectly for the benefit
     of holders of Capital Securities of the Trust.

               "Commission" shall mean the Securities and Exchange
     Commission, as from time to time constituted, created under the
     Exchange Act, or if at any time after the execution of this
     Indenture such Commission is not existing and performing the
     duties now assigned to it under the Trust Indenture Act, then the
     body performing such duties at such time.

               "Common Securities" shall mean undivided beneficial
     interests in the assets of the Trust designated as the Floating
     Rate Common Securities, which rank pari passu with Capital
     Securities issued by the Trust; provided, however, that if an
     Event of Default has occurred and is continuing, no payments in
     respect of Distributions on, or payments upon liquidation,
     redemption or otherwise with respect to, the Common Securities
     shall be made until the holders of the Capital Securities shall
     be paid in full the Distributions and the liquidation, redemption
     and other payments to which they are entitled.

               "Common Securities Guarantee" shall mean any guarantee
     that the Company executes directly or indirectly for the benefit
     of holders of Common Securities of the Trust.

               "Common Stock" shall mean the Common Stock, par value
     $1.50 per share, of the Company or any other class of stock
     resulting from changes or reclassifications of such Common Stock
     consisting solely of changes in par value, or from par value to
     no par value, or from no par value to par value.

               "Company" shall mean BankBoston Corporation, a
     Massachusetts corporation, and, subject to the provisions of
     Article X, shall include its successors and assigns.

                                       3
<PAGE>
 
               "Company Request" or "Company Order" shall mean a
     written request or order signed in the name of the Company by the
     Chairman, the Chief Executive Officer, the President, a Vice
     Chairman, a Vice President, the Comptroller, the Executive
     Director, Global Treasury, the Clerk or an Assistant Clerk of the
     Company, and delivered to the Trustee.

               "Compounded Interest" shall have the meaning set forth
     in Section 16.01.

               "Custodian" shall mean any receiver, trustee, assignee,
     liquidator, or similar official under any Bankruptcy Law.

               "Declaration" means the Amended and Restated
     Declaration of Trust of the Trust, dated as of _______, 1997.

               "Default" means any event, act or condition that with
     notice or lapse of time, or both, would constitute an Event of
     Default.

               "Deferred Interest" shall have the meaning set forth in
     Section 16.01.

               "Definitive Securities" shall mean those securities
     issued in fully registered certificated form not otherwise in
     global form.

               "Depositary" shall mean, with respect to the
     Securities, The Depository Trust Company, New York, New York,
     another clearing agency, or any successor registered as a
     clearing agency under the Exchange Act or other applicable
     statute or regulation, as designated by the Company pursuant to
     Section 2.05(d).

               "Determination Date" shall have the meaning set forth
     in Section 2.06(c).

               "Dissolution Event" means the liquidation of the Trust
     pursuant to the Declaration, and the distribution of the
     Securities held by the Property Trustee to the holders of the
     Trust Securities issued by the Trust pro rata in accordance with
     the Declaration.

               "Event of Default" shall mean any event specified in
     Section 5.01, continued for the period of time, if any, and after
     the giving of the notice, if any, therein designated.

               "Exchange Act" shall mean the Securities Exchange Act
     of 1934, as amended.

               "Extended Interest Payment Period" shall have the
     meaning set forth in Section 16.01.

                                       4
<PAGE>
 
               "Federal Reserve" shall mean the Board of Governors of
     the Federal Reserve System.

               "Global Security" means, with respect to the
     Securities, a Security executed by the Company and delivered by
     the Trustee to the Depositary or pursuant to the Depositary's
     instruction, all in accordance with the Indenture, which shall be
     registered in the name of the Depositary or its nominee.

               "Indebtedness for Money Borrowed" shall mean any
     obligation of, or any obligation guaranteed by, the Company for
     the repayment of borrowed money, whether or not evidenced by
     bonds, debentures, notes or other written instruments.

               "Indebtedness Ranking on a Parity with the Securities"
     shall mean (i) Indebtedness for Money Borrowed, whether
     outstanding on the date of execution of this Indenture or
     hereafter created, assumed or incurred, which specifically by its
     terms ranks equally with and not prior to the Securities in the
     right of payment upon the happening of any dissolution or winding
     up or liquidation or reorganization of the Company, and (ii) all
     other debt securities, and guarantees in respect of those debt
     securities, issued to any trust other than the Trust, or a
     trustee of such trust, partnership or other entity affiliated
     with the Company that is a financing vehicle of the Company (a
     "financing entity") in connection with the issuance by such
     financing entity of equity securities or other securities
     guaranteed by the Company pursuant to an instrument that ranks
     pari passu with or junior in right of payment to the Capital
     Securities Guarantee.

               "Indebtedness Ranking Junior to the Securities" shall
     mean any Indebtedness for Money Borrowed, whether outstanding on
     the date of execution of this Indenture or hereafter created,
     assumed or incurred, which specifically by its terms ranks junior
     to and not equally with or prior to the Securities (and any other
     Indebtedness Ranking on a Parity with the Securities) in right of
     payment upon the happening of any dissolution or winding up or
     liquidation or reorganization of the Company.  The securing of
     any Indebtedness for Money Borrowed of the Company, otherwise
     constituting Indebtedness Ranking on a Parity with the Securities
     or Indebtedness Ranking Junior to the Securities, as the case may
     be, shall not be deemed to prevent such Indebtedness for Money
     Borrowed from constituting Indebtedness Ranking on a Parity with
     the Securities or Indebtedness Ranking Junior to the Securities,
     as the case may be.

               "Indenture" shall mean this instrument as originally
     executed or, if amended as herein provided, as so amended.

               "Interest Payment Date" shall have the meaning set
     forth in Section 2.06(a).

                                       5
<PAGE>
 
               "Interest Period" shall have the meaning set forth in
     Section 2.06(a).

               "LIBOR" shall have the meaning set forth in Section
     2.06(c)

               "London Business Day" shall have the meaning set forth
     in Section 2.06(c).

               "Maturity Date" shall mean _______, 2027.

               "Mortgage" shall mean and include any mortgage, pledge,
     lien, security interest, conditional sale or other title
     retention agreement or other similar encumbrance.

               "Non Book-Entry Capital Securities" shall have the
     meaning set forth in Section 2.05.

               "Officers" shall mean any of the Chairman, a Vice
     Chairman, the Chief Executive Officer, the President, a Vice
     President, the Comptroller, the Executive Director, Global
     Treasury, the Clerk or an Assistant Clerk of the Company.

               "Officers' Certificate" shall mean a certificate signed
     by two Officers and delivered to the Trustee.

               "Opinion of Counsel" shall mean a written opinion of
     counsel, who may be an employee of the Company, and who shall be
     acceptable to the Trustee.

               "Other Debentures" means all junior subordinated
     debentures issued by the Company from time to time and sold to
     trusts to be established by the Company, in each case similar to
     the Trust.

               "Other Guarantees" means all guarantees issued by the
     Company with respect to capital securities and issued to other
     trusts established by the Company, in each case similar to the
     Trust.

               The term "outstanding" when used with reference to
     Securities, shall, subject to the provisions of Section 7.04,
     mean, as of any particular time, all Securities authenticated and
     delivered by the Trustee or the Authenticating Agent under this
     Indenture, except

               (a)  Securities theretofore cancelled by the Trustee or
                    the Authenticating Agent or delivered to the
                    Trustee for cancellation;

               (b)  Securities, or portions thereof, for the payment
                    or redemption of which moneys in the necessary

                                       6
<PAGE>
 
                    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, or portions thereof, are to be
                    redeemed prior to maturity thereof, notice of such
                    redemption shall have been given as in Article XIV
                    provided or provision satisfactory to the Trustee
                    shall have been made for giving such notice; and

               (c)  Securities in lieu of or in substitution for which
                    other Securities shall have been authenticated and
                    delivered pursuant to the terms of Section 2.08
                    unless proof satisfactory to the Company and the
                    Trustee is presented that any such Securities are
                    held by bona fide holders in due course.

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

               "Predecessor Security" of any particular Security means
     every previous Security evidencing all or a portion of the same
     debt and as that evidenced by such particular Security; and, for
     the purposes of this definition, any Security authenticated and
     delivered under Section 2.08 in lieu of a lost, destroyed or
     stolen Security shall be deemed to evidence the same debt as the
     lost, destroyed or stolen Security.

               "Principal office of the Trustee", or other similar
     term, shall mean the principal office of the Trustee, at which at
     any particular time its corporate trust business shall be
     administered.

               "Redemption Price" shall mean, with respect to any
     redemption of the Securities pursuant to Sections 14.01 or 14.02
     hereof, an amount in cash equal to 100% of the principal amount
     of Securities to be redeemed, plus any accrued and unpaid
     interest thereon, including Compounded Interest and Additional
     Interest, if any, to the date of such redemption.

               "Regulatory Capital Event" means that the Company shall
     have received an opinion of independent bank regulatory counsel
     experienced in such matters to the effect that, as a result of
     (a) any amendment to, or change (including any announced
     prospective change) in, the laws (or any regulations thereunder)
     of the United States or any rules, guidelines or policies of the
     Federal Reserve or (b) any official administrative pronouncement
     or judicial decision interpreting or applying such laws or
     regula-

                                       7
<PAGE>
 
     tions, which amendment or change is effective or such pronouncement or
     decision is announced on or after the date of original issuance of the
     Capital Securities, the Capital Securities do not constitute, or within 90
     days of the date thereof, will not constitute, Tier I Capital (or its then
     equivalent); provided, however, that the distribution of the Capital
     Securities in connection with the liquidation of the Trust by the Company,
     as sponsor, shall not in and of itself constitute a Regulatory Capital
     Event unless such liquidation shall have occurred in connection with a Tax
     Event.

               "Responsible Officer", when used with respect to the
     Trustee, shall mean any vice president, any assistant secretary,
     any assistant treasurer, any trust officer or assistant trust
     officer or any other officer or assistant officer of the Trustee
     customarily performing functions similar to those performed by
     any of the above designated officers and also means, with respect
     to a particular corporate trust matter, any other officer to whom
     such matter is referred because of his knowledge of and
     familiarity with the particular subject.

               "Reuters Page LIBO" shall have the meaning set forth in
     Section 2.06(c).

               "Securities" means the Company's Floating Rate Junior
     Subordinated Deferrable Interest Debentures due _______, 2027, as
     authenticated and issued under this Indenture.

               "Securities Act" shall mean the Securities Act of 1933,
     as amended.

               "Securityholder", "holder of Securities", or other
     similar terms, shall mean any person in whose name at the time a
     particular Security is registered on the register kept by the
     Company or the Trustee for that purpose in accordance with the
     terms hereof.

               "Security Register" shall have the meaning specified in
     Section 2.07(b).

               "Senior Indebtedness" shall mean all Indebtedness for
     Money Borrowed, whether outstanding on the date of execution of
     this Indenture or hereafter created, assumed or incurred, except
     Indebtedness Ranking on a Parity with the Securities or
     Indebtedness Ranking Junior to the Securities, and any deferrals,
     renewals or extensions of such Senior Indebtedness.

               "Special Event" means either a Regulatory Capital Event
     or a Tax Event.

               "Subsidiary" shall mean with respect to any Person,
     (i) any corporation at least a majority of whose outstanding

                                       8
<PAGE>
 
     voting stock of which is owned, directly or indirectly, by such
     Person or by one or more of its Subsidiaries, or by such Person
     and one or more of its Subsidiaries, (ii) any general
     partnership, joint venture or similar entity, at least a majority
     of whose outstanding partnership or similar interests shall at
     the time be owned by such Person, or by one or more of its
     Subsidiaries, or by such Person and one or more of its
     Subsidiaries and (iii) any limited partnership of which such
     Person or any of its Subsidiaries is a general partner.  For the
     purposes of this definition, "voting stock" means shares,
     interests, participations or other equivalents in the equity
     interest (however designated) in such Person having ordinary
     voting power for the election of a majority of the directors (or
     the equivalent) of such Person, other than shares, interests,
     participations or other equivalents having such power only by
     reason of the occurrence of a contingency.

               "Tax Event" shall mean the receipt by the Trust and the
     Company of an opinion of counsel experienced in such matters to
     the effect that, as a result of any amendment to, or change
     (including any announced prospective change) in, the laws or any
     regulations thereunder of the United States or any political
     subdivision or taxing authority thereof or therein or as a result
     of any official administrative pronouncement or judicial decision
     interpreting or applying such laws or regulations, which
     amendment or change is effective or which pronouncement or
     decision is announced on or after _______, 1997, there is more
     than an insubstantial risk that (i) the Trust is, or will be
     within 90 days of the date of such opinion, subject to  United
     States Federal income tax with respect to income received or
     accrued on the Securities, (ii) interest payable by the Company
     on the Securities is not, or within 90 days of the date of such
     opinion, will not be, deductible by the Company, in whole or in
     part, for United States Federal income tax purposes, or (iii) the
     Trust is, or will be within 90 days of the date of such opinion,
     subject to more than a de minimis amount of other taxes, duties
     or other governmental charges.

               "Trust" shall mean BankBoston Capital Trust III, a
     Delaware business trust created for the purpose of issuing its
     undivided beneficial interests in connection with the issuance of
     Securities under this Indenture.

               "Trustee" shall mean the Person identified as "Trustee"
     in the first paragraph hereof, and, subject to the provisions of
     Article VI hereof, shall also include its successors and assigns
     as Trustee hereunder.

               "Trust Indenture Act of 1939" shall mean the Trust
     Indenture Act of 1939 as in force at the date of execution of
     this Indenture, except as provided in Section 9.03.

                                       9
<PAGE>
 
               "Trust Securities" shall mean the Capital Securities
     and the Common Securities, collectively.

               "U.S. Government Obligations" shall mean securities
     that are (i) direct obligations of the United States of America
     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 the United States of
     America the payment of which is unconditionally guaranteed as a
     full faith and credit obligation by the United States of America,
     which, in either case under clauses (i) or (ii) are not callable
     or redeemable at the option of the issuer thereof, and shall also
     include a depository receipt issued by a bank or trust company as
     custodian with respect to any such U.S. Government Obligation or
     a specific payment of interest on or principal of any such U.S.
     Government Obligation held by such custodian for the account of
     the holder of a 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 the U.S. Government Obligation or the specific payment
     of interest on or principal of the U.S. Government Obligation
     evidenced by such depository receipt.

                                 ARTICLE II
                                 SECURITIES

               SECTION 2.01.  Forms Generally.

               The Securities and the Trustee's certificate of
     authentication shall be substantially in the form of Exhibit A,
     the terms of which are incorporated in and made a part of this
     Indenture.  The Securities may have notations, legends or
     endorsements required by law, stock exchange rule, agreements to
     which the Company is subject or usage.  Each Security shall be
     dated the date of its authentication.  The Securities shall be
     issued in denominations of $1,000 and integral multiples thereof.

               SECTION 2.02.  Execution and Authentication.

               An Officer shall sign the Securities for the Company by
     manual or facsimile signature.  If an Officer whose signature is
     on a Security no longer holds that office at the time the
     Security is authenticated, the Security shall nevertheless be
     valid.

               A Security shall not be valid until authenticated by
     the manual signature of the Trustee.  The signature of the
     Trustee shall be conclusive evidence that the Security has been
     authenticated under this Indenture.  The form of Trustee's

                                       10
<PAGE>
 
     certificate of authentication to be borne by the Securities shall
     be substantially as set forth in Exhibit A hereto.

               The Trustee shall, upon a Company Order, authenticate
     for original issue up to and including, and the aggregate
     principal amount of Securities outstanding at any time may not
     exceed, $257,732,000 aggregate principal amount of the
     Securities, except as provided in Sections 2.07, 2.08, 2.10 and
     14.05.

               SECTION 2.03.  Form and Payment.

               Except as provided in Section 2.05, the Securities
     shall be issued in fully registered certificated form without
     interest coupons.  Principal of and premium, if any, and interest
     on the Securities issued in certificated form will be payable,
     the transfer of such Securities will be registrable and such
     Securities will be exchangeable for Securities bearing identical
     terms and provisions at the office or agency of the Trustee;
     provided, however, that payment of interest with respect to
     Securities in global form may be made at the option of the
     Company (i) by check mailed to the holder at such address as
     shall appear in the Security Register or (ii) by transfer to an
     account maintained by the Person entitled thereto, provided that
     proper transfer instructions have been received in writing by the
     relevant record date.  Notwithstanding the foregoing, so long as
     the holder of any Securities is the Property Trustee, the payment
     of the principal of and premium, if any, and interest (including
     Compounded Interest and Additional Interest, if any) on such
     Securities held by the Property Trustee will be made at such
     place and to such account as may be designated by the Property
     Trustee.

               SECTION 2.04.  [Reserved].

               SECTION 2.05.  Global Security.

               (a)  In connection with a Dissolution Event,

                    (i)  if any Capital Securities are held in book-
          entry form, the related Definitive Securities shall be
          presented to the Trustee (if an arrangement with the
          Depositary has been maintained) by the Property Trustee in
          exchange for one or more Global Securities (as may be
          required pursuant to Section 2.07) in an aggregate principal
          amount equal to the aggregate principal amount of all
          outstanding Securities, to be registered in the name of the
          Depositary, or its nominee, and delivered by the Trustee to
          the Depositary for crediting to the accounts of its
          participants pursuant to the instructions of the
          Administrative Trustees; the Company upon any such
          presentation shall execute one or more Global Securities in
          such aggregate principal amount and deliver the same to the
          Trustee for authentication and delivery in 

                                       11
<PAGE>
 
          accordance with the Indenture; and payments on the Securities 
          issued as a Global Security will be made to the Depositary; and

                    (ii) if any Capital Securities are held in
          certificated form, the related Definitive Securities may be
          presented to the Trustee by the Property Trustee and any
          Capital Security certificate which represents Capital
          Securities other than Capital Securities in book-entry form
          ("Non Book-Entry Capital Securities") will be deemed to
          represent beneficial interests in Securities presented to
          the Trustee by the Property Trustee having an aggregate
          principal amount equal to the aggregate liquidation amount
          of the Non Book-Entry Capital Securities until such Capital
          Security certificates are presented to the Security
          registrar for transfer or reissuance, at which time such
          Capital Security certificates will be cancelled and a
          Security, registered in the name of the holder of the
          Capital Security certificate or the transferee of the holder
          of such Capital Security certificate, as the case may be,
          with an aggregate principal amount equal to the aggregate
          liquidation amount of the Capital Security certificate
          cancelled, will be executed by the Company and delivered to
          the Trustee for authentication and delivery in accordance
          with the Indenture.  Upon the issuance of such Securities,
          Securities with an equivalent aggregate principal amount
          that were presented by the Property Trustee to the Trustee
          will be deemed to have been cancelled.

               (b)  The Global Securities shall represent the
     aggregate amount of outstanding Securities from time to time
     endorsed thereon; provided, that the aggregate amount of
     outstanding Securities represented thereby may from time to time
     be reduced or increased, as appropriate, to reflect exchanges and
     redemptions.  Any endorsement of a Global Security to reflect the
     amount of any increase or decrease in the amount of outstanding
     Securities represented thereby shall be made by the Trustee, in
     accordance with instructions given by the Company as required by
     this Section 2.05.

               (c)  The Global Securities may be transferred, in whole
     but not in part, only to another nominee of the Depositary, or to
     a successor Depositary selected or approved by the Company or to
     a nominee of such successor Depositary.

               (d)  If at any time the Depositary notifies the Company
     that it is unwilling or unable to continue as Depositary or the
     Depositary has ceased to be a clearing agency registered under
     the Exchange Act, and a successor Depositary is not appointed by
     the Company within 90 days after the Company receives such notice
     or becomes aware of such condition, as the case may be, the
     Company will execute, and the Trustee, upon written notice from

                                       12
<PAGE>
 
     the Company, will authenticate and make available for delivery
     the Definitive Securities, in authorized denominations, and in an
     aggregate principal amount equal to the principal amount of the
     Global Security in exchange for such Global Security.  If there
     is a Default or an Event of Default, the Depositary shall have
     the right to exchange the Global Securities for Definitive
     Securities.  In addition, the Company may at any time determine
     that the Securities shall no longer be represented by a Global
     Security.  In the event of such a Default or an Event of Default
     or such a determination, the Company shall execute, and subject
     to Section 2.07, the Trustee, upon receipt of an Officers'
     Certificate evidencing such determination by the Company, will
     authenticate and make available for delivery the Definitive
     Securities, in authorized denominations, and in an aggregate
     principal amount equal to the principal amount of the Global
     Security in exchange for such Global Security.  Upon the exchange
     of the Global Security for such Definitive Securities, in
     authorized denominations, the Global Security shall be cancelled
     by the Trustee.  Such Definitive Securities issued in exchange
     for the Global Security shall be registered in such names and in
     such authorized denominations as the Depositary, pursuant to
     instructions from its direct or indirect participants or
     otherwise, shall instruct the Trustee.  The Trustee shall deliver
     such Definitive Securities to the Depositary for delivery to the
     Persons in whose names such Definitive Securities are so
     registered.

               SECTION 2.06.  Interest.

               (a)  Each Security will bear interest at the rate
     determined as provided below, payable quarterly in arrears
     (subject to the provisions of Article XVI) on __________,
     __________, __________ and ___________ of each year, commencing
     on __________, 1997 (each, an "Interest Payment Date"), to the
     Person in whose name such Security or any predecessor Security is
     registered, at the close of business on the regular record date
     for such interest installment, which shall be the __________,
     __________, __________ and ___________ prior to the applicable
     Interest Payment Date.  Interest payable on each Interest Payment
     Date shall include interest accrued from and including the
     immediately preceding Interest Payment Date (or, if no interest
     has been paid or duly provided for, the date of original
     issuance) to but excluding such Interest Payment Date (each, an
     "Interest Period").

               (b)  The amount of interest payable for any Interest
     Period shall be computed on the basis of the actual number of
     days elapsed in such Interest Period and a year of 360 days. 
     Accrued interest that is not paid on the applicable Interest
     Payment Date will bear additional interest on the amount thereof
     (to the extent permitted by law) at the periodic rate determined
     as provided below, compounded quarterly from the relevant Inter-

                                       13
<PAGE>
 
     est Payment Date.  If an Interest Payment Date is not a
     Business Day, then such Interest Payment Date and the first day
     of the Interest Period commencing on such Interest Payment Date
     shall be postponed to the next succeeding Business Day, except if
     such Business Day is in the next succeeding calendar month, such
     Interest Payment Date and the first day of such Interest Period
     will be the immediately preceding Business Day.  The term
     "interest" as used herein shall include quarterly interest
     payments, interest on quarterly interest payments not paid on the
     applicable Interest Payment Date (to the extent permitted by law)
     and Additional Interest, as applicable.

               (c)  The per annum rate of interest payable with
     respect to the Securities shall equal LIBOR plus _____% (the
     "Interest Rate").  The Interest Rate on the Securities for each
     Interest Period will be adjusted on the first day of such
     Interest Period based on LIBOR determined as of two London
     Business Days prior to the first day of such Interest Period
     (each, a "Determination Date").

               "LIBOR" with respect to any Determination Date will be
     determined by the Calculation Agent in accordance with the
     following provisions (in the following order of priority):

                    (1)  the rate (expressed as a percentage per
          annum) for U.S. dollar deposits having a three-month
          maturity that appears on Telerate Page 3750 as of 11:00 a.m.
          (London time) on the related Determination Date;

                    (2)  if such rate does not appear on Telerate Page
          3750 as of 11:00 a.m. (London time) on the related
          Determination Date, LIBOR will be the arithmetic mean (if
          necessary rounded upwards to the nearest whole multiple of
          0.00001%) of the rates (expressed as percentages per annum)
          for U.S. dollar deposits having a three-month maturity that
          appear on Reuters Monitor Money Rates Page LIBO ("Reuters
          Page LIBO") as of 11:00 a.m. (London time) on such
          Determination Date;

                    (3)  if such rate does not appear on Reuters Page
          LIBO as of 11:00 a.m. (London time) on the related
          Determination Date, the Calculation Agent will request the
          principal London offices of four leading banks in the London
          interbank market to provide such banks' offered quotations
          (expressed as percentages per annum) to prime banks in the
          London interbank market for U.S. dollar deposits having a
          three-month maturity as of 11:00 a.m. (London time) on such
          Determination Date and, if at least two quotations are so
          provided, LIBOR will be the arithmetic mean (if necessary
          rounded upwards to the nearest whole multiple of 0.00001%)
          of such quotations;

                                       14
<PAGE>
 
                    (4)  if fewer than two such quotations are
          provided as requested in clause (3) above, the Calculation
          Agent will request four major New York City banks to provide
          such banks' offered quotations (expressed as percentages per
          annum) to leading European banks for loans in U.S. dollars
          having a three-month maturity as of 11:00 a.m. (London time)
          on such Determination Date and, if at least two such
          quotations are so provided, LIBOR will be the arithmetic
          mean (if necessary rounded upwards to the nearest whole
          multiple of 0.00001%) of such quotations; and

                    (5)  if fewer than two such quotations are
          provided as requested in clause (4) above, LIBOR will be
          LIBOR as determined on the immediately preceding
          Determination Date.

               If the rate for U.S. dollar deposits having a
     three-month maturity that initially appears on Telerate Page 3750
     or Reuters Page LIBO, as the case may be, as of 11:00 a.m.
     (London time) on the related Determination Date is superseded on
     Telerate Page 3750 or Reuters Page LIBO, as the case may be, by a
     corrected rate before 12:00 noon (London time) on such
     Determination Date, such corrected rate will be the applicable
     LIBOR for such Determination Date.

               As used herein, "London Business Day" means a day on
     which dealings in deposits in U.S. dollars are transacted in the
     London interbank market.

               The Calculation Agent will, upon the request of any
     Securityholder, provide the Interest Rate then in effect.  Absent
     manifest error, the Calculation Agent's determination of LIBOR
     and its calculation of the applicable Interest Rate will be final
     and binding on the holders of the Securities.

               All percentages resulting from any calculation of
     interest on the Securities will be rounded to the nearest one
     hundred-thousandth of a percentage point, with five
     one-millionths of a percentage point rounded upward (e.g.,
     5.687665% (or .05687665) would be rounded to 5.68767% (or
     .0568767)), and all dollar amounts used or resulting from such
     calculation will be rounded to the nearest cent (with one-half
     cent being rounded upward).

               The Interest Rate on the Securities will in no event be
     higher than the maximum rate permitted by New York law, as the
     same may be modified by United States law of general application.

               (d)  During such time as the Property Trustee is the
     holder of any Securities, the Company shall pay any additional
     amounts on the Securities as may be necessary in order that the
     amount of distributions then due and payable by the Trust on the
     outstanding Trust Securities shall not be reduced as a result of

                                       15
<PAGE>
 
     any additional taxes, duties and other governmental charges to
     which the Trust has become subject as a result of a Tax Event
     ("Additional Interest").

               (e)  The Company hereby appoints The Bank of New York
     as the Calculation Agent with respect to the Securities to be
     issued by the Company.  The Bank of New York hereby accepts its
     appointment to determine LIBOR and calculate the Interest Rate
     of, and the amount of interest payable on, the Securities for
     each Interest Period pursuant to the terms set forth herein and
     in the Securities.

               In the event of a resignation or removal of The Bank of
     New York as the Calculation Agent, the Company shall promptly
     appoint a successor Calculation Agent.  Such successor
     Calculation Agent shall, without any further act, deed or
     conveyance, become vested with all of the authority, rights,
     duties and obligations of the Calculation Agent with the like
     effect as if originally appointed as Calculation Agent.

               SECTION 2.07.  Transfer and Exchange.

               (a)  [Reserved].  

               (b)  The Company shall cause to be kept at the
     principal office of the Trustee a register in which, subject to
     such reasonable regulations as it may prescribe, the Company
     shall provide for the registration of Securities and of transfers
     of Securities.  Such register is herein sometimes referred to as
     the "Securities Register."

               To permit registrations of transfers and exchanges, the
     Company shall execute and the Trustee shall authenticate
     Definitive Securities and Global Securities at the Trustee's
     request.  All Definitive Securities and Global Securities issued
     upon any registration of transfer or exchange of Definitive
     Securities or Global Securities shall be the valid obligations of
     the Company, evidencing the same debt, and entitled to the same
     benefits under this Indenture, as the Definitive Securities or
     Global Securities surrendered upon such registration of transfer
     or exchange.

               No service charge shall be made to a holder for any
     registration of transfer or exchange, but the Company may require
     payment of a sum sufficient to cover any transfer tax or similar
     governmental charge payable in connection therewith.

               The Company shall not be required to (i) issue,
     register the transfer of or exchange Securities during a period
     beginning at the opening of business 15 days before the day of
     mailing of a notice of redemption or any notice of selection of
     Securities for redemption under Article XV hereof and ending at
     the close of business on the day of such mailing; or (ii) regis-

                                       16
<PAGE>
 
     ter the transfer of or exchange any Security so selected for
     redemption in whole or in part, except the unredeemed portion of
     any Security being redeemed in part.

               Prior to due presentment for the registration of a
     transfer of any Security, the Trustee, any Agent and the Company
     may deem and treat the Person in whose name any Security is
     registered as the absolute owner of such Security for the purpose
     of receiving payment of principal of and premium, if any, and
     interest on such Securities, and neither the Trustee, any Agent
     nor the Company shall be affected by notice to the contrary.

               SECTION 2.08.  Replacement Securities.

               If any mutilated Security is surrendered to the
     Trustee, or the Company and the Trustee receive evidence to their
     satisfaction of the destruction, loss or theft of any Security,
     the Company shall issue and the Trustee shall authenticate a
     replacement Security if the Trustee's requirements for
     replacements of Securities are met.  An indemnity bond must be
     supplied by the holder that is sufficient in the judgment of the
     Trustee and the Company to protect the Company, the Trustee, any
     Agent or any authenticating agent from any loss that any of them
     may suffer if a Security is replaced.  The Company or the Trustee
     may charge for its expenses in replacing a Security.

               Every replacement Security is an obligation of the
     Company and shall be entitled to all of the benefits of this
     Indenture equally and proportionately with all other Securities
     duly issued hereunder.

               SECTION 2.09.  Treasury Securities.

               In determining whether the holders of the required
     principal amount of Securities have concurred in any direction,
     waiver or consent, Securities owned by the Company or any
     Affiliate of the Company shall be considered as though not
     outstanding, except that for purposes of determining whether the
     Trustee shall be protected in relying on any such direction,
     waiver or consent, only Securities that a Responsible Officer of
     the Trustee actually knows to be so owned shall be so considered.

               SECTION 2.10.  Temporary Securities.

               Pending the preparation of Definitive Securities, the
     Company may execute, and upon Company Order the Trustee shall
     authenticate and make available for delivery, temporary
     Securities that are printed, lithographed, typewritten,
     mimeographed or otherwise reproduced, in any authorized
     denomination, substantially of the tenor of the definitive
     Securities in lieu of which they are issued and with such
     appropriate insertions, omissions, substitutions and other
     variations as the officers executing such 

                                       17
<PAGE>
 
     Securities may determine, as conclusively evidenced by their 
     execution of such Securities.

               If temporary Securities are issued, the Company shall
     cause Definitive Securities to be prepared without unreasonable
     delay.  The Definitive Securities shall be printed, lithographed
     or engraved, or provided by any combination thereof, or in any
     other manner permitted by the rules and regulations of any
     applicable securities exchange or interdealer quotation system,
     all as determined by the officers executing such Definitive
     Securities.  After the preparation of Definitive Securities, the
     temporary Securities shall be exchangeable for Definitive
     Securities upon surrender of the temporary Securities at the
     office or agency maintained by the Company for such purpose
     pursuant to Section 3.02 hereof, without charge to the holder. 
     Upon surrender for cancellation of any one or more temporary
     Securities, the Company shall execute, and the Trustee shall
     authenticate and make available for delivery, in exchange
     therefor the same aggregate principal amount of Definitive
     Securities of authorized denominations.  Until so exchanged, the
     temporary Securities shall in all respects be entitled to the
     same benefits under this Indenture as Definitive Securities.

               SECTION 2.11.  Cancellation.

               The Company at any time may deliver Securities to the
     Trustee for cancellation.  The Trustee and no one else shall
     cancel all Securities surrendered for registration of transfer,
     exchange, payment, replacement or cancellation and shall retain
     or destroy cancelled Securities in accordance with its normal
     practices (subject to the record retention requirement of the
     Exchange Act) unless the Company directs them to be returned to
     it.  The Company may not issue new Securities to replace
     Securities that have been redeemed or paid or that have been
     delivered to the Trustee for cancellation.  All cancelled
     Securities held by the Trustee shall be delivered to the Company.

               SECTION 2.12.  Defaulted Interest.

               Any interest on any Security that is payable, but is
     not punctually paid or duly provided for, on any Interest Payment
     Date (herein called "Defaulted Interest") shall forthwith cease
     to be payable to the holder on the relevant regular record date
     by virtue of having been such holder; and such Defaulted Interest
     shall be paid by the Company, at its election, as provided in
     clause (a) or clause (b) below:

               (a)  The Company may make payment of any Defaulted
          Interest on Securities to the Persons in whose names such
          Securities (or their respective Predecessor Securities) are
          registered at the close of business on a special record date
          for the payment of such Defaulted Interest, which shall be

                                       18
<PAGE>
 
          fixed in the following manner: the Company shall notify the
          Trustee in writing of the amount of Defaulted Interest
          proposed to be paid on each such Security and the date of
          the proposed payment, and at the same time the Company shall
          deposit with the Trustee an amount of money equal to the
          aggregate amount proposed to be paid in respect of such
          Defaulted Interest or shall make arrangements satisfactory
          to the Trustee for such deposit prior to the date of the
          proposed payment, such money when deposited to be held in
          trust for the benefit of the Persons entitled to such
          Defaulted Interest as in this clause provided.  Thereupon
          the Trustee shall fix a special record date for the payment
          of such Defaulted Interest which shall not be more than 15
          nor less than 10 days prior to the date of the proposed
          payment and not less than 10 days after the receipt by the
          Trustee of the notice of the proposed payment.  The Trustee
          shall promptly notify the Company of such special record
          date and, in the name and at the expense of the Company,
          shall cause notice of the proposed payment of such Defaulted
          Interest and the special record date therefor to be mailed,
          first class postage prepaid, to each Securityholder at his
          or her address as it appears in the Security Register, not
          less than 10 days prior to such special record date.  Notice
          of the proposed payment of such Defaulted Interest and the
          special record date therefor having been mailed as
          aforesaid, such Defaulted Interest shall be paid to the
          Persons in whose names such Securities (or their respective
          Predecessor Securities) are registered on such special
          record date and shall be no longer payable pursuant to the
          following clause (b).

               (b)  The Company may make payment of any Defaulted
          Interest on any Securities in any other lawful manner not
          inconsistent with the requirements of any securities
          exchange or interdealer quotation system on which such
          Securities may be listed, and upon such notice as may be
          required by such exchange or interdealer quotation system,
          if, after notice given by the Company to the Trustees of the
          proposed payment pursuant to this clause, such manner of
          payment shall be deemed practicable by the Trustee.

               SECTION 2.13.  CUSIP Numbers.

               The Company in issuing the Securities may use "CUSIP"
     numbers (if then generally in use), and, if so, the Trustee shall
     use "CUSIP" numbers in notices of redemption as a convenience to
     Securityholders; provided that any such notice may state that no
     representation is made as to the correctness of such numbers
     either as printed on the Securities or as contained in any notice
     of a redemption and that reliance may be placed only on the other
     identification numbers printed on the Securities, and any such
     redemption shall not be affected by any defect in or omission of

                                       19
<PAGE>
 
     such numbers.  The Company will promptly notify the Trustee of
     any change in the CUSIP numbers.

                                ARTICLE III
                    PARTICULAR COVENANTS OF THE COMPANY

               SECTION 3.01.  Payment of Principal, Premium and
                              Interest.

               The Company covenants and agrees for the benefit of the
     holders of the Securities that it will duly and punctually pay or
     cause to be paid the principal of and premium, if any, and
     interest on the Securities at the place, at the respective times
     and in the manner provided herein.

               SECTION 3.02.  Offices for Notices and Payments, etc.

               So long as any of the Securities remains outstanding,
     the Company will maintain in the Borough of Manhattan, The City
     of New York, an office or agency where the Securities may be
     presented for payment, an office or agency where the Securities
     may be presented for registration of transfer and for exchange as
     in this Indenture provided and an office or agency where notices
     and demands to or upon the Company in respect of the Securities
     or of this Indenture may be served.  The Company will give to the
     Trustee written notice of the location of any such office or
     agency and of any change of location thereof.  Until otherwise
     designated from time to time by the Company in a notice to the
     Trustee, any such office or agency for all of the above purposes
     shall be the office or agency of the Trustee.  In case the
     Company shall fail to maintain any such office or agency in 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 and demands may be made and notices may be
     served at the principal corporate trust office of the Trustee.

               In addition to any such office or agency, the Company
     may from time to time designate one or more offices or agencies
     outside the Borough of Manhattan, The City of New York, where the
     Securities may be presented for registration of transfer and for
     exchange in the manner provided in this Indenture, and the
     Company may from time to time rescind such designation, as the
     Company may deem desirable or expedient; provided, however, that
     no such designation or rescission shall in any manner relieve the
     Company of its obligation to maintain any such office or agency
     in the Borough of Manhattan, The City of New York, for the
     purposes above mentioned.  The Company will give to the Trustee
     prompt written notice of any such designation or rescission
     thereof.

                                       20
<PAGE>
 
               SECTION 3.03.  Appointments to Fill Vacancies in
                              Trustee's Office.

               The Company, whenever necessary to avoid or fill a
     vacancy in the office of Trustee, will appoint, in the manner
     provided in Section 6.10, a Trustee, so that there shall at all
     times be a Trustee hereunder.

               SECTION 3.04.  Provision as to Paying Agent.

               (a)  If the Company shall appoint a paying agent other
                    than the Trustee with respect to the Securities,
                    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
                    provision of this Section 3.04,

                    (1)  that it will hold all sums held by it as such
                         agent for the payment of the principal of and
                         premium, if any, or interest on the
                         Securities (whether such sums have been paid
                         to it by the Company or by any other obligor
                         on the Securities) in trust for the benefit
                         of the holders of the Securities; and

                    (2)  that it will give the Trustee notice of any
                         failure by the Company (or by any other
                         obligor on the Securities) to make any
                         payment of the principal of and premium or
                         interest on the Securities when the same
                         shall be due and payable.

               (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, or interest on
                    the Securities, set aside, segregate and hold in
                    trust for the benefit of the holders of the
                    Securities a sum sufficient to pay such principal,
                    premium or interest so becoming due and will
                    notify the Trustee of any failure to take such
                    action and of any failure by the Company (or by
                    any other obligor under the Securities) to make
                    any payment of the principal of and premium, if
                    any, or interest on the Securities when the same
                    shall become due and payable.

               (c)  Anything in this Section 3.04 to the contrary
                    notwithstanding, the Company may, at any time, for
                    the purpose of obtaining a satisfaction and
                    discharge with respect to the Securities
                    hereunder, or for any other reason, pay or cause
                    to be paid to the Trustee all sums held in trust
                    for any such 

                                       21
<PAGE>
 
                    Securities by the Trustee or any paying agent hereunder, 
                    as required by this Section 3.04, such sums to be held 
                    by the Trustee upon the trusts herein contained.

               (d)  Anything in this Section 3.04 to the contrary
                    notwithstanding, the agreement to hold sums in
                    trust as provided in this Section 3.04 is subject
                    to Sections 11.03 and 11.04.

               SECTION 3.05.  Certificate to Trustee.

               The Company will deliver to the Trustee on or before
     120 days after the end of each fiscal year in each year,
     commencing with the first fiscal year ending after the date
     hereof, so long as Securities are outstanding hereunder, an
     Officers' Certificate, one of the signers of which shall be the
     principal executive, principal financial or principal accounting
     officer of the Company stating that in the course of the
     performance by the signers of their duties as officers of the
     Company they would normally have knowledge of any default by the
     Company in the performance of any covenants contained herein,
     stating whether or not they have knowledge of any such default
     and, if so, specifying each such default of which the signers
     have knowledge and the nature thereof.

               SECTION 3.06.  Compliance with Consolidation
                              Provisions.

               The Company will not, while any of the Securities
     remain outstanding, consolidate with, or merge into, or merge
     into itself, or sell or convey all or substantially all of its
     property to any other Person unless the provisions of Article X
     hereof are complied with.

               SECTION 3.07.  Limitation on Dividends.

               The Company will not (i) declare or pay any dividends
     or distributions on, or redeem, purchase, acquire, or make a
     liquidation payment with respect to, any of the Company's capital
     stock (which includes common and preferred stock) or (ii) make
     any payment of principal, interest or premium, if any, on or
     repay or repurchase or redeem any debt securities of the Company
     (including any Other Debentures) that rank pari passu with or
     junior in right of payment to the Securities or (iii) make any
     guarantee payments with respect to any guarantee by the Company
     of the debt securities of any Subsidiary of the Company
     (including Other Guarantees) if such guarantee ranks pari passu
     or junior in right of payment to the Securities (other than (a)
     dividends or distributions in shares of, or options, warrants or
     rights to subscribe for or purchase shares of, Common Stock of
     the Company, (b) any declaration of a dividend in connection with

                                       22
<PAGE>
 
     the implementation of a stockholder's rights plan, or the
     issuance of stock under any such plan in the future, or the
     redemption or repurchase of any such rights pursuant thereto, (c)
     payments under the Capital Securities Guarantee and (d) as a
     result of a reclassification of the Company's capital stock or
     the exchange or the conversion of one class or series of the
     Company's capital stock for another class or series of the
     Company's capital stock; (e) the purchase of fractional interests
     in shares of the Company's capital stock pursuant to the
     conversion or exchange provisions of such capital stock or the
     security being converted or exchanged; and (f) purchases of
     Common Stock related to the issuance of Common Stock or rights
     under any of the Company's benefit plans for its directors,
     officers or employees or any of the Company's dividend
     reinvestment plans) if at such time (i) there shall have occurred
     any event of which the Company has actual knowledge that (a) with
     the giving of notice or the lapse of time, or both, would
     constitute an Event of Default and (b) in respect of which the
     Company shall not have taken reasonable steps to cure, (ii) if
     such Securities are held by the Property Trustee, the Company
     shall be in default with respect to its payment of any
     obligations under the Capital Securities Guarantee or (iii) the
     Company shall have given notice of its election of the exercise
     of its right to extend the interest payment period pursuant to
     Section 16.01 and any such extension shall be continuing.

               SECTION 3.08.  Covenants as to the Trust

               In the event Securities are issued to the Trust or a
     trustee of such trust in connection with the issuance of Trust
     Securities by the Trust, for so long as such Trust Securities
     remain outstanding, the Company will (i) maintain 100% direct
     ownership of the Common Securities of the Trust; provided,
     however, that any successor of the Company, permitted pursuant to
     Article X, may succeed to the Company's ownership of such Common
     Securities, (ii) use its reasonable efforts to cause the Trust
     (a) to remain a business trust, except in connection with a
     distribution of Securities, the redemption of all of the Trust
     Securities of the Trust or certain mergers, consolidations or
     amalgamations, each as permitted by the Declaration of the Trust,
     and (b) to otherwise continue to be treated as a grantor trust
     and not an association taxable as a corporation for United States
     Federal income tax purposes and (iii) to use its reasonable
     efforts to cause each holder of Trust Securities to be treated as
     owning an individual beneficial interest in the Securities.

               SECTION 3.09.  Payment of Expenses.

               In connection with the offering, sale and issuance of
     the Securities to the Trust and in connection with the sale of
     the Trust Securities by the Trust, the Company, in its capacity
     as borrower with respect to the Securities, shall:

                                       23
<PAGE>
 
               (a)  pay all costs and expenses relating to the
     offering, sale and issuance of the Securities, including
     commissions to the initial purchasers payable pursuant to the
     Purchase Agreement, fees and expenses in connection with the
     registration of the Securities under the Securities Act and
     compensation of the Trustee in accordance with the provisions of
     Section 6.06;

               (b)  pay all costs and expenses of the Trust
     (including, but not limited to, costs and expenses relating to
     the organization of the Trust, the offering, sale and issuance of
     the Trust Securities (including commissions to the initial
     purchasers in connection therewith), the fees and expenses of the
     Property Trustee and the Delaware Trustee, the costs and expenses
     relating to the operation of the Trust, including without
     limitation, costs and expenses of accountants, attorneys,
     statistical or bookkeeping services, expenses for printing and
     engraving and computing or accounting equipment, paying agent(s),
     registrar(s), transfer agent(s), duplicating, travel and
     telephone and other telecommunications expenses and costs and
     expenses incurred in connection with the acquisition, financing,
     and disposition of Trust assets;

               (c)  be primarily and fully liable for any
     indemnification obligations arising with respect to the
     Declaration;

               (d)  pay any and all taxes (other than United States
     withholding taxes attributable to the Trust or its assets) and
     all liabilities, costs and expenses with respect to such taxes of
     the Trust; and

               (e)  pay all other fees, expenses, debts and
     obligations (other than the Trust Securities) related to the
     Trust. 

               SECTION 3.10.  Payment Upon Resignation or Removal.

               Upon termination of this Indenture or the removal or
     resignation of the Trustee, unless otherwise stated, the Company
     shall pay to the Trustee all amounts accrued and owing to the
     date of such termination, removal or resignation.  Upon
     termination of the Declaration or the removal or resignation of
     the Delaware Trustee or the Property Trustee, as the case may be,
     pursuant to Section 5.7 of the Declaration, the Company shall pay
     to the Delaware Trustee or the Property Trustee, as the case may
     be, all amounts accrued and owing to the date of such
     termination, removal or resignation.

                                       24
<PAGE>
 
                                 ARTICLE IV
                 SECURITYHOLDERS' LISTS AND REPORTS BY THE
                          COMPANY AND THE TRUSTEE

               SECTION 4.01.  Securityholders' Lists.

               The Company covenants and agrees that it will furnish
     or cause to be furnished to the Trustee:

               (a)  on a semi-annual basis on November 15 and May 15
                    of each year, a list, in such form as the Trustee
                    may reasonably require, of the names and addresses
                    of the Securityholders as of such record date; and

               (b)  at such other times as the Trustee may request in
                    writing, within 30 days after the receipt by the
                    Company, of any such request, a list of similar
                    form and content as of a date not more than 15
                    days prior to the time such list is furnished,
                    except that, no such lists need be furnished so
                    long as the Trustee is in possession thereof by
                    reason of its acting as Security registrar.

               SECTION 4.02.  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 the
                    Securities (1) contained in the most recent list
                    furnished to it as provided in Section 4.01 or (2)
                    received by it in the capacity of Securities
                    registrar (if so acting) hereunder.  The Trustee
                    may destroy any list furnished to it as provided
                    in Section 4.01 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 such applicant has
                    owned a Security 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 or
                    with holders of all Securities with respect to
                    their rights under this Indenture and is
                    accompanied by a copy of the form of proxy or
                    other communication which such applicants propose
                    to transmit, then the Trustee shall within 5
                    Business Days after the receipt of such
                    application, at its election, either:

                                       25
<PAGE>
 
               (1)  afford such applicants access to the information
                    preserved at the time by the Trustee in accordance
                    with the provisions of subsection (a) of this
                    Section 4.02, or

               (2)  inform such applicants as to the approximate
                    number of holders of all Securities, 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 4.02,
                    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 such
                    applicants access to such information, the Trustee
                    shall, upon the written request of such
                    applicants, mail to each Securityholder 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 4.02
                    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 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 or would be
                    in violation of applicable law.  Such written
                    statement shall specify the basis of such opinion. 
                    If the 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, the Commission shall find, after
                    notice and opportunity for hearing, that all the
                    objections so sustained have been met and shall
                    enter an order so declaring, the Trustee shall
                    mail copies of such material to all such
                    Securityholders 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.

                                       26
<PAGE>
 
               (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 paying agent 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 4.02,
                    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 4.03.  Reports by Company.

               (a)  The Company covenants and agrees to file with the
                    Trustee, within 15 days after the date on which
                    the Company is required to file the same with the
                    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 the Commission pursuant to
                    Section 13 or Section 15(d) of the Exchange Act;
                    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 the Commission, in accordance with
                    rules and regulations prescribed from time to time
                    by the Commission, such of the supplementary and
                    periodic information, documents and reports which
                    may be required pursuant to Section 13 of the
                    Exchange Act 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)  The Company covenants and agrees to file with the
                    Trustee and the 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.

               (c)  The Company covenants and agrees to transmit by
                    mail to all holders of Securities, as the names
                    and addresses of such holders appear upon the
                    Security Register, within 30 days after the filing

                                       27
<PAGE>
 
                    thereof with the Trustee, such summaries of any
                    information, documents and reports required to be
                    filed by the Company pursuant to subsections (a)
                    and (b) of this Section 4.03 as may be required by
                    rules and regulations prescribed from time to time
                    by the Commission.

               (d)  Delivery of such reports, information and
                    documents to the Trustee is for informational
                    purposes only and the Trustee's receipt of such
                    shall not constitute constructive notice of any
                    information contained therein or determinable from
                    information contained therein, including the
                    Company's compliance with any of its covenants
                    hereunder (as to which the Trustee is entitled to
                    rely exclusively on Officers' Certificates).

               SECTION 4.04.  Reports by the Trustee.

               (a)  The Trustee shall transmit to Securityholders such
                    reports concerning the Trustee and its actions
                    under this Indenture as may be required pursuant
                    to the Trust Indenture Act at the times and in the
                    manner provided pursuant thereto.  If required by
                    Section 313(a) of the Trust Indenture Act, the
                    Trustee shall, within sixty days after each
                    December 15 following the date of this Indenture,
                    commencing December 15, 1997, deliver to
                    Securityholders a brief report, dated as of such
                    December 15, which complies with the provisions of
                    such Section 313(a).

               (b)  A copy of each such report shall, at the time of
                    such transmission to Securityholders, be filed by
                    the Trustee with each stock exchange, if any, upon
                    which the Securities are listed, with the
                    Commission and with the Company.  The Company will
                    promptly notify the Trustee when the Securities
                    are listed on any stock exchange.

                                 ARTICLE V
                REMEDIES OF THE TRUSTEE AND SECURITYHOLDERS
                            ON EVENT OF DEFAULT

               SECTION 5.01.  Events of Default.

               One or more of the following events of default shall
     constitute an Event of Default hereunder:

               (a)  default in the payment of any interest upon any
                    Security or any Other Debentures when it becomes

                                       28
<PAGE>
 
                    due and payable, and continuance of such default
                    for a period of 30 days; provided, however, that a
                    valid extension of an interest payment period by
                    the Company in accordance with the terms hereof or
                    thereof shall not constitute a default in the
                    payment of interest for this purpose; or

               (b)  default in the payment of all or any part of the
                    principal of (or premium, if any, on) any Security
                    or any Other Debentures as and when the same shall
                    become due and payable, whether at maturity, upon
                    redemption, by declaration or otherwise; or

               (c)  default in the performance, or breach, of any
                    covenant or warranty of the Company in this
                    Indenture (other than a covenant or warranty a
                    default in whose performance or whose breach is
                    elsewhere in this Section specifically dealt
                    with), and continuance of such default or breach
                    for a period of 90 days after there has been
                    given, by registered or certified mail, to the
                    Company by the Trustee or to the Company and the
                    Trustee by the holders of at least 25% in
                    aggregate principal amount of the outstanding
                    Securities a written notice specifying such
                    default or breach and requiring it to be remedied
                    and stating that such notice is a "Notice of
                    Default" hereunder; or

               (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 90 consecutive days; or

               (e)  the Company shall commence a voluntary case under
                    any applicable bankruptcy, insolvency or other
                    similar law now or hereafter in effect, 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 other similar
                    official) of the Company or of any substantial
                    part of its property, or shall make any general
                    assignment 

                                       29
<PAGE>
 
                    for the benefit of creditors, or shall fail 
                    generally to pay its debts as they become due.

               If an Event of Default with respect to Securities at
     the time outstanding occurs and is continuing, then in every such
     case the Trustee or the holders of not less than 25% in aggregate
     principal amount of the Securities then outstanding may declare
     the principal amount of all Securities to be due and payable
     immediately, by a notice in writing to the Company (and to the
     Trustee if given by the holders of the outstanding Securities),
     and upon any such declaration the same shall become immediately
     due and payable.

               The foregoing provisions, however, are subject to the
     condition that if, at any time after the principal of the
     Securities 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, (i)
     the Company shall pay or shall deposit with the Trustee a sum
     sufficient to pay (A) all matured installments of interest upon
     all the Securities and the principal of and premium, if any, on
     any and all Securities which shall have become due otherwise than
     by acceleration (with interest 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, at the same rate as the rate of interest specified in
     the Securities to the date of such payment or deposit) and (B)
     such amount as shall be sufficient to cover reasonable
     compensation to the Trustee and each predecessor Trustee, their
     respective agents, attorneys and counsel, and all other expenses
     and liabilities incurred, and all advances made, by the Trustee
     and each predecessor Trustee except as a result of negligence or
     bad faith, and (ii) any and all Events of Default under the
     Indenture shall have been cured, waived or otherwise remedied as
     provided herein, then, in every such case, the holders of a
     majority in aggregate principal amount of the Securities then
     outstanding, by written notice to the Company and to the Trustee,
     may rescind and annul such declaration and its consequences, but
     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 or 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 the Securities shall be restored
     respectively to their several positions and rights hereunder, and
     all rights, remedies and powers of the Company, the Trustee and
     the holders of the Securities shall continue as though no such
     proceeding had been taken.

                                       30
<PAGE>
 
               SECTION 5.02.  Payment of Securities on Default; Suit
                              Therefor.

               The Company covenants that (a) in case default shall be
     made in the payment of any installment of interest upon any of
     the Securities as and when the same shall become due and payable,
     and such default shall have continued for a period of 30 days, or
     (b) in case default shall be made in the payment of the principal
     of or premium, if any, on any of the Securities as and when the
     same shall have become due and payable, whether at maturity of
     the Securities or upon redemption or by declaration or otherwise,
     then, upon demand of the Trustee, the Company will pay to the
     Trustee, for the benefit of the holders of the Securities, the
     whole amount that then shall have become due and payable on all
     such Securities for principal and premium, if any, or interest,
     or both, 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 and, if the
     Securities are held by the Trust or a trustee of such trust,
     without duplication of any other amounts paid by the Trust or
     trustee in respect thereof) upon the overdue installments of
     interest at the rate borne by the Securities; and, in addition
     thereto, such further amount as shall be sufficient to cover the
     costs and expenses of collection, including a reasonable
     compensation to the Trustee, its agents, attorneys and counsel,
     and any expenses or liabilities incurred by the Trustee hereunder
     other than through 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 actions or proceedings at law or in equity for the
     collection of the sums so due and unpaid, and may prosecute any
     such action or proceeding to judgment or final decree, and may
     enforce any such judgment or final decree against the Company or
     any other obligor on the Securities and collect in the manner
     provided by law out of the property of the Company or any other
     obligor on the 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 on the Securities under Title 11, 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 similar judicial proceedings
     relative to the Company or other obligor upon the Securities, or
     to the creditors or property of the Company or such other
     obligor, the Trustee, irrespective of whether the principal of
     the Securities 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

                                       31
<PAGE>
 
     this Section 5.02, 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 and interest
     owing and unpaid in respect of the Securities and, in case of any
     judicial proceedings, to file such proofs of claim and 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 and each predecessor
     Trustee, and their respective agents, attorneys and counsel, and
     for reimbursement of all expenses and liabilities incurred, and
     all advances made, by the Trustee and each predecessor Trustee,
     except as a result of negligence or bad faith) and of the
     Securityholders allowed in such judicial proceedings relative to
     the Company or any other obligor on the Securities, or to the
     creditors or property of the Company or such other obligor,
     unless prohibited by applicable law and regulations, to vote on
     behalf of the holders of the Securities in any election of a
     trustee or a standby trustee in arrangement, reorganization,
     liquidation or other bankruptcy or insolvency proceedings or
     person performing similar functions in comparable proceedings,
     and to collect and receive any moneys or other property payable
     or deliverable on any such claims, and to distribute the same
     after the deduction of its charges and expenses; and any
     receiver, assignee or trustee in bankruptcy or reorganization is
     hereby authorized by each of the Securityholders to make such
     payments to the Trustee, and, in the event that the Trustee shall
     consent to the making of such payments directly to the
     Securityholders, to pay to the Trustee such amounts as shall be
     sufficient to cover reasonable compensation to the Trustee, each
     predecessor Trustee and their respective agents, attorneys and
     counsel, and all other expenses and liabilities incurred, and all
     advances made, by the Trustee and each predecessor Trustee except
     as a result of negligence or bad faith.

               Nothing herein contained shall be construed to
     authorize the Trustee to authorize or consent to or accept or
     adopt on behalf of any Securityholder 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 Securityholder 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 the
     production thereof on any trial or other proceeding relative
     thereto, and any such suit or proceeding instituted by the
     Trustee shall be brought in its own name as trustee of an express
     trust, and any recovery of judgment shall be for the ratable
     benefit of the holders of the Securities.

                                       32
<PAGE>
 
               In any proceedings brought by the Trustee (and also any
     proceedings involving the interpretation of any provision of this
     Indenture to which the Trustee shall be a party) the Trustee
     shall be held to represent all the holders of the Securities, and
     it shall not be necessary to make any holders of the Securities
     parties to any such proceedings.

               SECTION 5.03.  Application of Moneys Collected by
                              Trustee.

               Any moneys collected by the Trustee shall be applied in
     the order following, at the date or dates fixed by the Trustee
     for the distribution of such moneys, upon presentation of the
     Securities 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 costs and expenses of
     collection applicable to the Securities and reasonable
     compensation to the Trustee, its agents, attorneys and counsel,
     and of all other expenses and liabilities incurred, and all
     advances made, by the Trustee except as a result of its
     negligence or bad faith;

               Second:  To the payment of all Senior Indebtedness of
     the Company if and to the extent required by Article XV;

               Third:  To the payment of the amounts then due and
     unpaid upon Securities for principal of (and premium, if any) and
     interest on the Securities, in respect of which or for the
     benefit of which money has been collected, ratably, without
     preference of priority of any kind, according to the amounts due
     on such Securities for principal (and premium, if any) and
     interest, respectively; and

               Fourth:  To the Company.

               SECTION 5.04.  Proceedings by Securityholders. 

               No holder of any Security shall have any right by
     virtue of or by availing of any provision of this Indenture to
     institute any suit, action or proceeding in equity or at law 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 an Event of Default and of the continuance
     thereof with respect to the Securities specifying such Event of
     Default, as hereinbefore provided, and unless also the holders of
     not less than 25% in aggregate principal amount of the Securities
     then outstanding shall have made written request upon the Trustee
     to institute such action, suit or proceeding in its own name as
     Trustee hereunder and shall have offered to the Trustee such
     reasonable indemnity as it may require against the costs, expens-

                                       33
<PAGE>
 
     es and liabilities to be incurred therein or thereby, and
     the Trustee for 60 days after its receipt of such notice, request
     and offer of indemnity shall have failed to institute any such
     action, suit or proceeding, 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 shall have any right in any
     manner whatever by virtue of or by availing of any provision of
     this Indenture to affect, disturb or prejudice the rights of any
     other holder of 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.

               Notwithstanding any other provisions in this Indenture,
     however, the right of any holder of any Security to receive
     payment of the principal of (premium, if any) and interest on
     such Security, on or after the same shall have become due and
     payable, or to institute suit for the enforcement of any such
     payment, shall not be impaired or affected without the consent of
     such holder and by accepting a Security hereunder it is expressly
     understood, intended and covenanted by the taker and holder of
     every Security with every other such taker and holder and the
     Trustee, that no one or more holders of Securities shall have any
     right in any manner whatsoever by virtue or by availing of any
     provision of this Indenture to affect, disturb or prejudice the
     rights of the holders of any other 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.  For the protection and
     enforcement of 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.

               The Company and the Trustee acknowledge that pursuant
     to the Declaration, the holders of Capital Securities are
     entitled, in the circumstances and subject to the limitations set
     forth therein, to commence a Direct Action with respect to any
     Event of Default under this Indenture and the Securities.

               SECTION 5.05.  Proceedings by Trustee.

               In case an Event of Default occurs with respect to
     Securities and is continuing, 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 such
     rights, either by suit in equity or by action at law or by
     proceeding in bankruptcy or otherwise, whether for the specific
     enforcement of any covenant or agreement contained in this

                                       34
<PAGE>
 
     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 5.06.  Remedies Cumulative and Continuing. 

               All powers and remedies given by this Article V to the
     Trustee or to the Securityholders shall, to the extent permitted
     by law, be deemed cumulative and not exclusive of any other
     powers and remedies available to the Trustee or the holders of
     the Securities, by judicial proceedings or otherwise, to enforce
     the performance or observance of the covenants and agreements
     contained in this Indenture or otherwise established with respect
     to the Securities, and no delay or omission of the Trustee or of
     any holder of any of the Securities to exercise any right or
     power accruing upon any Event of 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 5.04, every
     power and remedy given by this Article V or by law to the Trustee
     or to the Securityholders may be exercised from time to time, and
     as often as shall be deemed expedient, by the Trustee or by the
     Securityholders.

               SECTION 5.07.  Direction of Proceedings and Waiver of
                              Defaults by Majority of Securityholders.

               The holders of a majority in aggregate principal amount
     of the Securities at the time outstanding 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; provided, however, that
     (subject to the provisions of Section 6.01) the Trustee shall
     have the right to decline to follow any such direction if the
     Trustee shall determine that the action so directed would be
     unjustly prejudicial to the holders not taking part in such
     direction or if the Trustee being advised by counsel determines
     that the action or proceeding so directed may not lawfully be
     taken or if the Trustee in good faith by its board of directors
     or trustees, executive committee, or a trust committee of
     directors or trustees and/or Responsible Officers shall determine
     that the action or proceedings so directed would involve the
     Trustee in personal liability.  Prior to any declaration
     accelerating the maturity of the Securities, the holders of a
     majority in aggregate principal amount of the Securities at the
     time outstanding may on behalf of the holders of all of the
     Securities waive any past default or Event of Default and its
     consequences except a default (a) in the payment of principal of
     or premium, if any, or interest on any of the Securities or (b)
     in respect of covenants or provisions hereof which cannot be
     modified or amended without the consent of the holder of each
     Security affected; provided, however, that if the Securities are
     held by Property Trustee, 

                                       35
<PAGE>
 
     such waiver or modification to such waiver shall not be effective until the
     holders of a majority in aggregate liquidation amount of Trust Securities
     shall have consented to such waiver or modification to such waiver;
     provided further, that if the consent of the holder of each outstanding
     Security is required, such waiver shall not be effective until each holder
     of the Trust Securities shall have consented to such waiver. Upon any such
     waiver, the default covered thereby shall be deemed to be cured for all
     purposes of this Indenture and the Company, the Trustee and the holders of
     the Securities shall be restored to their former positions and rights
     hereunder, respectively; but no such waiver shall extend to any subsequent
     or other default or impair any right consequent thereon. Whenever any
     default or Event of Default hereunder shall have been waived as permitted
     by this Section 5.07, said default or Event of Default shall for all
     purposes of the Securities and this Indenture be deemed to have been cured
     and to be not continuing .

               SECTION 5.08.  Notice of Defaults.

               The Trustee shall, within 90 days after the occurrence
     of a default with respect to the Securities mail to all
     Securityholders, as the names and addresses of such holders
     appear upon the Security register, notice of all defaults known
     to the Trustee, unless such defaults shall have been cured before
     the giving of such notice (the term "defaults" for the purpose of
     this Section 5.08 being hereby defined to be the events specified
     in clauses (a), (b), (c), (d) and (e) of Section 5.01, not
     including periods of grace, if any, provided for therein, and
     irrespective of the giving of written notice specified in clause
     (c) of Section 5.01); and provided that, except in the case of
     default in the payment of the principal of or premium, if any, or
     interest on any of the Securities, 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 and/or Responsible Officers of the Trustee in good
     faith determines that the withholding of such notice is in the
     interests of the Securityholders; and provided further, that in
     the case of any default of the character specified in Section
     5.01(c) no such notice to Securityholders shall be given until at
     least 60 days after the occurrence thereof but shall be given
     within 90 days after such occurrence.

               SECTION 5.09.  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

                                       36
<PAGE>
 
     that such court may in its discretion assess reasonable costs,
     including reasonable attorneys' fees and expenses, against any
     party litigant in such suit, having due regard to the merits and
     good faith of the claims or defenses made by such party litigant;
     but the provisions of this Section 5.09 shall not apply to any
     suit instituted by the Trustee, to any suit instituted by any
     Securityholder, or group of Securityholders, holding in the
     aggregate more than 10% in aggregate principal amount of the
     Securities outstanding, or to any suit instituted by any
     Securityholder for the enforcement of the payment of the
     principal of (or premium, if any) or interest on any Security
     against the Company on or after the same shall have become due
     and payable.

                                 ARTICLE VI
                           CONCERNING THE TRUSTEE

               SECTION 6.01.  Duties and Responsibilities of Trustee. 

               With respect to the holders of the Securities issued
     hereunder, the Trustee, prior to the occurrence of an Event of
     Default and after the curing or waiving of all Events of Default
     which may have occurred, undertakes to perform such duties and
     only such duties as are specifically set forth in this Indenture. 
     In case an Event of Default has occurred (which has not been
     cured or waived) 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.

               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 and
                    after the curing or waiving of all Events of
                    Default which may have occurred

                    (1)  the duties and obligations of the Trustee
                         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

                                       37
<PAGE>
 
                    (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 of the Trustee, 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 Securityholders pursuant to Section 5.07,
                    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.

               None of the provisions contained in this Indenture
     shall require the Trustee to expend or risk its own funds or
     otherwise incur personal financial liability in the performance
     of any of its duties or in the exercise of any of its rights or
     powers, if there is reasonable ground for believing that the
     repayment of such funds or liability is not reasonably assured to
     it under the terms of this Indenture or adequate indemnity
     against such risk is not reasonably assured to it.

               SECTION 6.02.  Reliance on Documents, Opinions, etc. 

               Except as otherwise provided in Section 6.01:

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

                                       38
<PAGE>
 
               (b)  any request, direction, order or demand of the
                    Company mentioned herein may be sufficiently
                    evidenced by an Officers' Certificate (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 Clerk or an Assistant Clerk of
                    the Company;

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

               (e)  the Trustee shall not be liable for any action
                    taken or omitted 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; nothing contained herein shall,
                    however, relieve the Trustee of the obligation,
                    upon the occurrence of an Event of Default (that
                    has not been cured or waived), to exercise such of
                    the rights and powers vested in it by this
                    Indenture, and to 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;

               (f)  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,
                    consent, order, approval, bond, debenture, coupon
                    or other paper or document, unless requested in
                    writing to do so by the holders of a majority in
                    aggregate principal amount of the outstanding
                    Securities; provided, however, that if the payment
                    within a reasonable time to the Trustee of the
                    costs, expenses or liabilities likely to be
                    incurred by it in the making of such investigation
                    is, in the opinion of the Trustee, not reasonably
                    assured to the Trustee 

                                       39
<PAGE>
 
                    by the security afforded to it by the terms of this 
                    Indenture, the Trustee may require reasonable indemnity 
                    against such expense or liability as a condition to so
                    proceeding;

               (g)  the Trustee may execute any of the trusts or
                    powers hereunder or perform any duties hereunder
                    either directly or by or through agents (including
                    any Authenticating Agent) or attorneys, and the
                    Trustee shall not be responsible for any
                    misconduct or negligence on the part of any such
                    agent or attorney appointed by it with due care;

               (h)  the Trustee shall not be liable for any action
                    taken, suffered, or omitted to be taken by it in
                    good faith and reasonably believed by it to be
                    authorized or within the discretion or rights or
                    powers conferred upon it by this Indenture; and

               (i)  the Trustee shall not be deemed to have notice of
                    any Default or Event of Default unless a
                    responsible Officer of the Trustee has actual
                    knowledge thereof or unless written notice of any
                    event which is in fact such a default is received
                    by the Trustee at the Corporate Trust Office of
                    the Trustee, and such notice references the
                    Securities and this Indenture.

               SECTION 6.03.  No Responsibility for Recitals, etc. 

               The recitals contained herein and in the Securities
     (except in the certificate of authentication of the Trustee or
     the Authenticating Agent) shall be taken as the statements of the
     Company and the Trustee and the Authenticating Agent assume no
     responsibility for the correctness of the same.  The Trustee and
     the Authenticating Agent make no representations as to the
     validity or sufficiency of this Indenture or of the Securities. 
     The Trustee and the Authenticating Agent shall not be accountable
     for the use or application by the Company of any Securities or
     the proceeds of any Securities authenticated and delivered by the
     Trustee or the Authenticating Agent in conformity with the
     provisions of this Indenture.

               SECTION 6.04.  Trustee, Authenticating Agent, Paying
                              Agents, Transfer Agents or Registrar May
                              Own Securities.  

               The Trustee or any Authenticating Agent or any paying
     agent or any transfer agent or any Security registrar, in its
     individual or any other capacity, may become the owner or pledgee
     of Securities with the same rights it would have if it were not

                                       40
<PAGE>
 
     Trustee, Authenticating Agent, paying agent, transfer agent or
     Security registrar.

               SECTION 6.05.  Moneys to be Held in Trust.  

               Subject to the provisions of Section 11.04, all moneys
     received by the Trustee or any paying agent shall, until used or
     applied as herein provided, be held in trust for the purpose for
     which they were received, but need not be segregated from other
     funds except to the extent required by law.  The Trustee and any
     paying agent shall be under no liability for interest on any
     money received by it hereunder except as otherwise agreed in
     writing with the Company.  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 the Chairman of the Board of Directors,
     the President or a Vice President or the Treasurer or an
     Assistant Treasurer of the Company.

               SECTION 6.06.  Compensation and Expenses of Trustee.  

               The Company, as borrower, covenants and agrees to pay
     to the Trustee from time to time, and the Trustee shall be
     entitled to, such compensation as shall be agreed to in writing
     between the Company and the Trustee (which shall not be limited
     by any provision of law in regard to the compensation of a
     trustee of an express trust), and 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 and the 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 each of the Trustee or any predecessor
     Trustee (and its officers, agents, directors and employees) for,
     and to hold it harmless against, any and all loss, damage, claim,
     liability or expense including taxes (other than taxes based on
     the income of the Trustee) incurred without negligence or bad
     faith on the part of the Trustee and 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 6.06 to compensate and indemnify the
     Trustee and to pay or reimburse the Trustee for 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.

                                       41
<PAGE>
 
               When the Trustee incurs expenses or renders services in
     connection with an Event of Default specified in Section 5.01(d)
     or Section 5.01(e), the expenses (including the reasonable
     charges and expenses of its counsel) and the compensation for the
     services are intended to constitute expenses of administration
     under any applicable Federal or state bankruptcy, insolvency or
     other similar law.

               The provisions of this Section shall survive the
     termination of this Indenture.

               SECTION 6.07.  Officers' Certificate as Evidence.  

               Except as otherwise provided in Sections 6.01 and 6.02,
     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 omitting any
     action hereunder, such matter (unless other evidence in respect
     thereof is 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 or omitted by it under the provisions of this Indenture
     upon the faith thereof.

               SECTION 6.08.  Conflicting Interest of Trustee.  

               If the Trustee has or shall acquire any "conflicting
     interest" within the meaning of Section 310(b) of the Trust
     Indenture Act, the Trustee and the Company shall in all respects
     comply with the provisions of Section 310(b) of the Trust
     Indenture Act.

               SECTION 6.09.  Eligibility of Trustee.  

               The Trustee hereunder shall at all times be a
     corporation organized and doing business under the laws of the
     United States of America or any state or territory thereof or of
     the District of Columbia or a corporation or other Person
     permitted to act as trustee by the Commission authorized under
     such laws to exercise corporate trust powers, having a combined
     capital and surplus of at least 50 million U.S. dollars
     ($50,000,000) and subject to supervision or examination by
     Federal, state, territorial, or District of Columbia authority. 
     If such corporation publishes reports of condition at least
     annually, pursuant to law or to the requirements of the aforesaid
     supervising or examining authority, then for the purposes of this
     Section 6.09 the combined capital and surplus of such corporation
     shall be deemed to be its combined capital and surplus as set
     forth in its most recent report of condition so published.

                                       42
<PAGE>
 
               The Company may not, nor may any Person directly or
     indirectly controlling, controlled by, or under common control
     with the Company, serve as Trustee.  

               In case at any time the Trustee shall cease to be
     eligible in accordance with the provisions of this Section 6.09,
     the Trustee shall resign immediately in the manner and with the
     effect specified in Section 6.10.

               SECTION 6.10.  Resignation or Removal of Trustee.  

               (a)  The Trustee, or any trustee or trustees hereafter
                    appointed, may at any time resign by giving
                    written notice of such resignation to the Company
                    and by mailing notice thereof to the holders of
                    the Securities at their addresses as they shall
                    appear on the Security register.  Upon receiving
                    such notice of resignation, the Company shall
                    promptly appoint a successor trustee or trustees
                    by written instrument, in duplicate, 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
                    60 days after the mailing of such notice of
                    resignation to the affected 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 for at least
                    six months may, subject to the provisions of
                    Section 5.09, 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 Section 6.08 after written
                         request therefor by the Company or by any
                         Securityholder who has been a bona fide
                         holder of a Security or Securities for at
                         least six months, or

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

                                       43
<PAGE>
 
                    (3)  the Trustee shall become incapable of acting,
                         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 and appoint a successor trustee by written
                    instrument, in duplicate, 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 5.09, any
                    Securityholder who has been a bona fide holder of
                    a Security 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.  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 at the time outstanding
                    may at any time remove the Trustee and nominate a
                    successor trustee, which shall be deemed appointed
                    as successor trustee unless within 10 days after
                    such nomination the Company objects thereto or if
                    no successor trustee shall have been so appointed
                    and shall have accepted appointment within 30 days
                    after such removal, in which case the Trustee so
                    removed or any Securityholder, upon the terms and
                    conditions and otherwise as in subsection (a) of
                    this Section 6.10 provided, may petition any court
                    of competent jurisdiction for an appointment of a
                    successor trustee.

               (d)  Any resignation or removal of the Trustee and
                    appointment of a successor trustee pursuant to any
                    of the provisions of this Section 6.10 shall
                    become effective upon acceptance of appointment by
                    the successor trustee as provided in Section 6.11.

               SECTION 6.11.  Acceptance by Successor Trustee. 

               Any successor trustee appointed as provided in Section
     6.10 shall 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

                                       44
<PAGE>
 
     retiring trustee 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
     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 6.06, execute and deliver
     an instrument transferring to such successor trustee all the
     rights and powers of the trustee so ceasing to act and shall duly
     assign, transfer and deliver to such successor trustee all
     property and money held by such retiring trustee thereunder. 
     Upon request of any such successor trustee, the Company shall
     execute any and all instruments in writing for more fully and
     certainly vesting in and confirming to such successor trustee all
     such rights and powers.  Any trustee ceasing 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 6.06.

               No successor trustee shall accept appointment as
     provided in this Section 6.11 unless at the time of such
     acceptance such successor trustee shall be qualified under the
     provisions of Section 6.08 and eligible under the provisions of
     Section 6.09.

               Upon acceptance of appointment by a successor trustee
     as provided in this Section 6.11, the Company shall mail notice
     of the succession of such trustee hereunder to the holders of
     Securities at their addresses as they shall appear on the
     Security register.  If the Company fails to mail such notice
     within 10 days after the acceptance of appointment by the
     successor trustee, the successor trustee shall cause such notice
     to be mailed at the expense of the Company.

               SECTION 6.12.  Succession 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 all or substantially all of the
     corporate trust business of the Trustee, shall be the successor
     of the Trustee hereunder without the execution or filing of any
     paper or any further act on the part of any of the parties
     hereto.

               In case at the time such successor to the Trustee shall
     succeed to the trusts created by this Indenture any Securities
     shall have been authenticated but not delivered, any such
     successor to the Trustee may adopt the certificate of
     authentication of any predecessor trustee, and deliver such
     Securities so authenticated; and in case at that time any of the
     Securities shall not 

                                       45
<PAGE>
 
     have been authenticated, any successor to the Trustee may authenticate such
     Securities either in the name of any predecessor hereunder or in the name
     of the successor trustee; and in all such cases such certificates shall
     have the full force which the Securities or this Indenture elsewhere
     provides that the certificate of the Trustee shall have; provided, however,
     that the right to adopt the certificate of authentication of any
     predecessor Trustee or authenticate Securities in the name of any
     predecessor Trustee shall apply only to its successor or successors by
     merger, conversion or consolidation.

               SECTION 6.13.  Limitation on Rights of Trustee as a
                              Creditor.

               The Trustee shall comply with Section 311(a) of the
     Trust Indenture Act, excluding any creditor relationship
     described in Section 311(b) of the Trust Indenture Act.  A
     Trustee who has resigned or been removed shall be subject to
     Section 311(a) of the Trust Indenture Act to the extent included
     therein.

               SECTION 6.14.  Authenticating Agents. 

               There may be one or more Authenticating Agents
     appointed by the Trustee upon the request of the Company with
     power to act on its behalf and subject to its direction in the
     authentication and delivery of Securities issued upon exchange or
     transfer thereof as fully to all intents and purposes as though
     any such Authenticating Agent had been expressly authorized to
     authenticate and deliver Securities; provided, that the Trustee
     shall have no liability to the Company for any acts or omissions
     of the Authenticating Agent with respect to the authentication
     and delivery of Securities.  Any such Authenticating Agent shall
     at all times 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 authorized under such laws
     to act as Authenticating Agent, having a combined capital and
     surplus of at least $5,000,000 and being subject to supervision
     or examination by Federal, state, territorial or District of
     Columbia authority.  If such corporation publishes reports of
     condition at least annually pursuant to law or the requirements
     of such authority, then for the purposes of this Section 6.14 the
     combined capital and surplus of such corporation shall be deemed
     to be its combined capital and surplus as set forth in its most
     recent report of condition so published.  If at any time an
     Authenticating Agent shall cease to be eligible in accordance
     with the provisions of this Section, it shall resign immediately
     in the manner and with the effect herein specified in this
     Section.

               Any corporation into which any Authenticating Agent may
     be merged or converted or with which it may be consolidated, or
     any corporation resulting from any merger, consolidation or
     conversion to which any Authenticating Agent shall be a party, or

                                       46
<PAGE>
 
     any corporation succeeding to all or substantially all of the
     corporate trust business of any Authenticating Agent, shall be
     the successor of such Authenticating Agent hereunder, if such
     successor corporation is otherwise eligible under this Section
     6.14 without the execution or filing of any paper or any further
     act on the part of the parties hereto or such Authenticating
     Agent.

               Any Authenticating Agent may at any time resign by
     giving written notice of resignation to the Trustee and to the
     Company.  The Trustee may at any time terminate the agency of any
     Authenticating Agent by giving written notice of termination to
     such Authenticating Agent and to the Company.  Upon receiving
     such a notice of resignation or upon such a termination, or in
     case at any time any Authenticating Agent shall cease to be
     eligible under this Section 6.14, the Trustee may, and upon the
     request of the Company shall, promptly appoint a successor
     Authenticating Agent eligible under this Section 6.14, shall give
     written notice of such appointment to the Company and shall mail
     notice of such appointment to all Securityholders as the names
     and addresses of such holders appear on the Security Register. 
     Any successor Authenticating Agent upon acceptance of its
     appointment hereunder shall become vested with all rights,
     powers, duties and responsibilities of its predecessor hereunder,
     with like effect as if originally named as Authenticating Agent
     herein.

               The Company, as borrower, agrees to pay to any
     Authenticating Agent from time to time reasonable compensation
     for its services.  Any Authenticating Agent shall have no
     responsibility or liability for any action taken by it as such in
     accordance with the directions of the Trustee.

                                ARTICLE VII

                       CONCERNING THE SECURITYHOLDERS

               SECTION 7.01.  Action by Securityholders. 

               Whenever in this Indenture it is provided that the
     holders of a specified percentage in aggregate principal amount
     of the Securities 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
     percentage have joined therein may be evidenced (a) by any
     instrument or any number of instruments of similar tenor executed
     by such Securityholders in person or by agent or proxy appointed
     in writing, or (b) by the record of such holders of Securities
     voting in favor thereof at any meeting of such Securityholders
     duly called and held in accordance with the provisions of Article

                                       47
<PAGE>
 
     VIII, or (c) by a combination of such instrument or instruments
     and any such record of such a meeting of such Securityholders.

               If the Company shall solicit from the Securityholders
     any request, demand, authorization, direction, notice, consent,
     waiver or other action, the Company may, at its option, as
     evidenced by an Officers' Certificate, fix in advance a record
     date for the determination of Securityholders entitled to give
     such request, demand, authorization, direction, notice, consent,
     waiver or other action, but the Company shall have no obligation
     to do so.  If such a record date is fixed, such request, demand,
     authorization, direction, notice, consent, waiver or other action
     may be given before or after the record date, but only the
     Securityholders of record at the close of business on the record
     date shall be deemed to be Securityholders for the purposes of
     determining whether Securityholders of the requisite proportion
     of Outstanding Securities have authorized or agreed or consented
     to such request, demand, authorization, direction, notice,
     consent, waiver or other action, and for that purpose the
     Outstanding Securities shall be computed as of the record date;
     provided, however, that no such authorization, agreement or
     consent by such Securityholders on the record date shall be
     deemed effective unless it shall become effective pursuant to the
     provisions of this Indenture not later than six months after the
     record date.

               SECTION 7.02.  Proof of Execution by Securityholders. 
      
               Subject to the provisions of Section 6.01, 6.02 and
     8.05, proof of the execution of any instrument by a
     Securityholder or his agent or proxy shall be sufficient if made
     in accordance with such reasonable rules and regulations as may
     be prescribed by the Trustee or in such manner as shall be
     satisfactory to the Trustee.  The ownership of Securities shall
     be proved by the Security Register or by a certificate of the
     Security registrar.  The Trustee may require such additional
     proof of any matter referred to in this Section as it shall deem
     necessary.

               The record of any Securityholders' meeting shall be
     proved in the manner provided in Section 8.06.

               SECTION 7.03.  Who Are Deemed Absolute Owners. 

               Prior to due presentment for registration of transfer
     of any Security, the Company, the Trustee, any Authenticating
     Agent, any paying agent, any transfer agent and any Security
     registrar may deem the person in whose name such Security shall
     be registered upon the Security Register to be, and may treat him
     as, the absolute owner of such Security (whether or not such
     Security shall be overdue) for the purpose of receiving payment
     of or on account of the principal of and premium, if any, and

                                       48
<PAGE>
 
     interest on such Security and for all other purposes; and neither
     the Company nor the Trustee nor any Authenticating Agent nor any
     paying agent nor any transfer agent nor any Security registrar
     shall be affected by any notice to the contrary.  All such
     payments so made to any holder for the time being or upon his
     order shall be valid, and, to the extent of the sum or sums so
     paid, effectual to satisfy and discharge the liability for moneys
     payable upon any such Security.

               SECTION 7.04.  Securities Owned by Company Deemed Not
                              Outstanding. 

               In determining whether the holders of the requisite
     aggregate principal amount of Securities have concurred in any
     direction, consent or waiver under this Indenture, Securities
     which are owned by the Company or any other obligor on the
     Securities or by any person directly or indirectly controlling or
     controlled by or under direct or indirect common control with the
     Company or any other obligor on the Securities shall be
     disregarded and deemed not to be outstanding for the purpose of
     any such determination; provided that for the purposes of
     determining whether the Trustee shall be protected in relying on
     any such direction, consent or waiver, only Securities which a
     Responsible Officer of the Trustee actually knows are so owned
     shall be so disregarded.  Securities so owned which have been
     pledged in good faith may be regarded as outstanding for the
     purposes of this Section 7.04 if the pledgee shall establish to
     the satisfaction of the Trustee the pledgee's right to vote such
     Securities and that the pledgee is not the Company or any such
     other obligor or person directly or indirectly controlling or
     controlled by or under direct or indirect common control with the
     Company or any such other obligor.  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 7.05.  Revocation of Consents; Future Holders
                              Bound.  

               At any time prior to (but not after) the evidencing to
     the Trustee, as provided in Section 7.01, of the taking of any
     action by the holders of the percentage in aggregate principal
     amount of the Securities specified in this Indenture in
     connection with such action, any holder of a Security (or any
     Security issued in whole or in part in exchange or substitution
     therefor) the serial 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 principal office and upon proof of holding as provided in
     Section 7.02, revoke such action so far as concerns such Security
     (or so far as concerns the principal amount represented by any
     exchanged or substituted Security).  Except as aforesaid any such
     action taken by the holder of any Security shall be conclusive and

                                       49
<PAGE>
 
     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 or any
     Security issued in exchange or substitution therefor.

                                ARTICLE VIII
                         SECURITYHOLDERS' MEETINGS

               SECTION 8.01.  Purposes of Meetings.  

               A meeting of Securityholders may be called at any time
     and from time to time pursuant to the provisions of this Article
     VIII for any of the following purposes:

               (a)  to give any notice to the Company or to the
                    Trustee, or to give any directions to the Trustee,
                    or to consent to the waiving of 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 V;

               (b)  to remove the Trustee and nominate a successor
                    trustee pursuant to the provisions of Article VI;

               (c)  to consent to the execution of an indenture or
                    indentures supplemental hereto pursuant to the
                    provisions of Section 9.02; or

               (d)  to take any other action authorized to be taken by
                    or on behalf of the holders of any specified
                    aggregate principal amount of such Securities
                    under any other provision of this Indenture or
                    under applicable law.

               SECTION 8.02.  Call of Meetings by Trustee.  

               The Trustee may at any time call a meeting of
     Securityholders to take any action specified in Section 8.01, to
     be held at such time and at such place in the Borough of
     Manhattan, The City of New York, as the Trustee shall determine. 
     Notice of every meeting of the Securityholders, setting forth the
     time and the place of such meeting and in general terms the
     action proposed to be taken at such meeting, shall be mailed to
     holders of Securities at their addresses as they shall appear on
     the Securities Register.  Such notice shall be mailed not less
     than 20 nor more than 180 days prior to the date fixed for the
     meeting.

                                       50
<PAGE>
 
               SECTION 8.03.  Call of Meetings by Company or
                              Securityholders. 

               In case at any time the Company pursuant to a
     resolution of the Board of Directors, or the holders of at least
     10% in aggregate principal amount of the Securities then
     outstanding, shall have requested the Trustee to call a meeting
     of Securityholders, by written request setting forth in
     reasonable detail the action proposed to be taken at the meeting,
     and the Trustee shall not have mailed the notice of such meeting
     within 20 days after receipt of such request, then the Company or
     such Securityholders may determine the time and the place in said
     Borough of Manhattan for such meeting and may call such meeting
     to take any action authorized in Section 8.01, by mailing notice
     thereof as provided in Section 8.02.

               SECTION 8.04.  Qualifications for Voting. 

               To be entitled to vote at any meeting of
     Securityholders a person shall (a) be a holder of one or more
     Securities or (b) a person appointed by an instrument in writing
     as proxy by a holder of one or more Securities.  The only persons
     who shall be entitled to be present or to speak at any meeting of
     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 8.05.  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 8.03, 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 majority
     vote of the meeting.

               Subject to the provisions of Section 8.04, at any
     meeting each holder of Securities or proxy therefor shall be
     entitled to one vote for each $1,000 principal amount of
     Securities held or represented by him; provided, however, that no
     vote 

                                       51
<PAGE>
 
     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 to be not outstanding.  The chairman of the
     meeting shall have no right to vote other than by virtue of
     Securities held by him or instruments in writing as aforesaid
     duly designating him as the person to vote on behalf of other
     Securityholders.  Any meeting of Securityholders duly called
     pursuant to the provisions of Section 8.02 or 8.03 may be
     adjourned from time to time by a majority of those present,
     whether or not constituting a quorum, and the meeting may be held
     as so adjourned without further notice.

               SECTION 8.06.  Voting.

               The vote upon any resolution submitted to any meeting
     of holders of Securities shall be by written ballots on which
     shall be subscribed the signatures of such holders or of their
     representatives by proxy and the serial number or 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 for or against any resolution
     and who shall make and file with the secretary of the meeting
     their verified written reports in triplicate 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 8.02.  The record shall show the serial numbers of the
     Securities voting in favor of or against any resolution.  The
     record shall be signed and verified by the affidavits of 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 IX
                                 AMENDMENTS

               SECTION 9.01.  Without Consent of Securityholders. 

               The Company and the Trustee may from time to time and
     at any time amend the Indenture, without the consent of the
     Securityholders, for one or more of the following purposes:

                                       52
<PAGE>
 
               (a)  to evidence the succession of another corporation
                    to the Company, or successive successions, and the
                    assumption by the successor corporation of the
                    covenants, agreements and obligations of the
                    Company pursuant to Article X hereof;

               (b)  to add to the covenants of the Company such
                    further covenants, restrictions or conditions for
                    the protection of the Securityholders as the Board
                    of Directors and the Trustee shall consider to be
                    for the protection of the Securityholders, and to
                    make the occurrence, or the occurrence and
                    continuance, of a default in any of such
                    additional covenants, restrictions or conditions a
                    default or an Event of Default permitting the
                    enforcement of all or any of the remedies provided
                    in this Indenture as herein set forth; provided,
                    however, that in respect of any such additional
                    covenant, restriction or condition such amendment
                    may provide for a particular period of grace after
                    default (which period may be shorter or longer
                    than that allowed in the case of other defaults)
                    or may provide for an immediate enforcement upon
                    such default or may limit the remedies available
                    to the Trustee upon such default;

               (c)  to provide for the issuance under this Indenture
                    of Securities in coupon form (including Securities
                    registrable as to principal only) and to provide
                    for exchangeability of such Securities with the
                    Securities issued hereunder in fully registered
                    form and to make all appropriate changes for such
                    purpose;

               (d)  to cure any ambiguity or to correct or supplement
                    any provision contained herein or in any
                    supplemental indenture which may be defective or
                    inconsistent with any other provision contained
                    herein or in any supplemental indenture, or to
                    make such other provisions in regard to matters or
                    questions arising under this Indenture; provided
                    that any such action shall not materially
                    adversely affect the interests of the holders of
                    the Securities;

               (e)  to evidence and provide for the acceptance of
                    appointment hereunder by a successor trustee with
                    respect to the Securities;

               (f)  to make provision for transfer procedures,
                    certification, book-entry provisions and all other
                    matters required pursuant to Section 2.07 or
                    otherwise necessary, desirable or appropriate in con-

                                       53
<PAGE>
 
                    nection with the issuance of Securities to
                    holders of Capital Securities in the event of a
                    distribution of Securities by the Trust following
                    a Dissolution Event;

               (g)  to qualify or maintain qualification of this
                    Indenture under the Trust Indenture Act; or

               (h)  to make any change that does not adversely affect
                    the rights of any Securityholder in any material
                    respect.

               The Trustee is hereby authorized to join with the
     Company in the execution of any supplemental indenture to effect
     such amendment, to make any further appropriate agreements and
     stipulations which may be therein contained and to accept the
     conveyance, transfer and assignment of any property thereunder,
     but the Trustee shall not be obligated to, but may in its
     discretion, enter into any such supplemental indenture which
     affects the Trustee's own rights, duties or immunities under this
     Indenture or otherwise.

               Any amendment to the Indenture authorized by the
     provisions of this Section 9.01 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 9.02.

               SECTION 9.02.  With Consent of Securityholders.

               With the consent (evidenced as provided in Section
     7.01) of the holders of a majority in aggregate principal amount
     of the Securities at the time outstanding, the Company, when
     authorized by a Board Resolution, and the Trustee may from time
     to time and at any time amend the Indenture for the purpose of
     adding any provisions to or changing in any manner or eliminating
     any of the provisions of this Indenture or of modifying in any
     manner the rights of the holders of the Securities; provided,
     however, that no such amendment shall without the consent of the
     holders of each Security then outstanding and affected thereby
     (i) extend the Maturity Date of any Security, or reduce the rate
     or extend the time of payment of interest thereon (except as
     contemplated by Article XVI), or reduce the principal amount
     thereof, or reduce any amount payable on redemption thereof, or
     make the principal thereof or any interest or premium thereon
     payable in any coin or currency other than that provided in the
     Securities, or impair or affect the right of any Securityholder
     to institute suit for payment thereof, or (ii) reduce the
     aforesaid percentage of Securities the holders of which are
     required to consent to any such amendment to the Indenture,
     provided, however, that if the Securities are held by the Trust,
     such amendment shall not be effective until the holders of a
     majority 

                                       54
<PAGE>
 
     in liquidation amount of Trust Securities shall have
     consented to such amendment; provided, further, that if the
     consent of the holder of each outstanding Security is required,
     such amendment shall not be effective until each holder of the
     Trust Securities shall have consented to such amendment.

               Upon the request of the Company accompanied by a copy
     of a resolution of the Board of Directors certified by its Clerk
     or Assistant Clerk authorizing the execution of any supplemental
     indenture effecting such amendment, 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.  The Trustee may receive an Opinion of
     Counsel as conclusive evidence that any supplemental indenture
     executed pursuant to this Article is authorized or permitted by,
     and conforms to, the terms of this Article and that it is proper
     for the Trustee under the provisions of this Article to join in
     the execution thereof.

               Promptly after the execution by the Company and the
     Trustee of any supplemental indenture pursuant to the provisions
     of this Section, the Trustee shall transmit by mail, first class
     postage prepaid, a notice, prepared by the Company, setting forth
     in general terms the substance of such supplemental indenture, to
     the Securityholders as their names and addresses appear upon the
     Security Register.  Any failure of the Trustee to mail such
     notice, or any defect therein, shall not, however, in any way
     impair or affect the validity of any such supplemental indenture.

               It shall not be necessary for the consent of the
     Securityholders under this Section 9.02 to approve the particular
     form of any proposed supplemental indenture, but it shall be
     sufficient if such consent shall approve the substance thereof.

               SECTION 9.03.  Compliance with Trust Indenture Act;
                              Effect of Supplemental Indentures.  

               Any supplemental indenture executed pursuant to the
     provisions of this Article IX shall comply with the Trust
     Indenture Act.  Upon the execution of any supplemental indenture
     pursuant to the provisions of this Article IX, 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

                                       55
<PAGE>
 
     and be deemed to be part of the terms and conditions of this Indenture 
     for any and all purposes.

               SECTION 9.04.  Notation on Securities.

               Securities authenticated and delivered after the
     execution of any supplemental indenture affecting such Securities
     pursuant to the provisions of this Article IX may bear a notation
     in form approved by the Trustee as to any matter provided for in
     such supplemental indenture.  If the Company or the Trustee shall
     so determine, new Securities so modified as to conform, in the
     opinion of the Trustee and the Board of Directors, to any
     modification of this Indenture contained in any such supplemental
     indenture may be prepared and executed by the Company,
     authenticated by the Trustee or the Authenticating Agent and
     delivered in exchange for the Securities then outstanding.

               SECTION 9.05.  Evidence of Compliance of Supplemental
                              Indenture to be Furnished Trustee.  

               The Trustee, subject to the provisions of Sections 6.01
     and 6.02, may receive an Officers' Certificate and an Opinion of
     Counsel as conclusive evidence that any supplemental indenture
     executed pursuant hereto complies with the requirements of this
     Article IX.

                                 ARTICLE X
              CONSOLIDATION, MERGER, SALE, CONVEYANCE AND LEASE

               SECTION 10.01. Company May Consolidate, etc., on
                              Certain Terms. 

               Nothing contained in this Indenture or in any of the
     Securities shall prevent any consolidation or merger of the
     Company with or into any other Person (whether or not affiliated
     with the Company, as the case may be), or successive
     consolidations or mergers in which the Company, as the case may
     be, or its successor or successors shall be a party or parties,
     or shall prevent any sale, conveyance, transfer or lease of the
     property of the Company, as the case may be, or its successor or
     successors as an entirety, or substantially as an entirety, to
     any other Person (whether or not affiliated with the Company, as
     the case may be, or its successor or successors) authorized to
     acquire and operate the same; provided, that (a) the Company is
     the surviving Person, or the Person formed by or surviving any
     such consolidation or merger (if other than the Company) or to
     which such sale, conveyance, transfer or lease of property is
     made is a Person organized and existing under the laws of the
     United States or any State thereof or the District of Columbia,
     and (b) upon any such consolidation, merger, sale, conveyance,
     transfer or lease, the due and punctual payment of the principal

                                       56
<PAGE>
 
     of (and premium, if any) and interest on the Securities according
     to their tenor and the due and punctual performance and
     observance of all the covenants and conditions of this Indenture
     to be kept or performed by the Company shall be expressly
     assumed, by supplemental indenture (which shall conform to the
     provisions of the Trust Indenture Act, as then in effect)
     satisfactory in form to the Trustee executed and delivered to the
     Trustee by the Person formed by such consolidation, or into which
     the Company, as the case may be, shall have been merged, or by
     the Person which shall have acquired such property, and (c) after
     giving effect to such consolidation, merger, sale, conveyance,
     transfer or lease, no Default or Event of Default shall have
     occurred and be continuing.

               SECTION 10.02. Successor Corporation to be Substituted
                              for Company. 

               In case of any such consolidation, merger, conveyance
     or transfer and upon the assumption by the successor corporation,
     by supplemental indenture, executed and delivered to the Trustee
     and satisfactory in form to the Trustee, of the due and punctual
     payment of the principal of and premium, if any, and interest on
     all of the Securities and the due and punctual performance and
     observance of all of the covenants and conditions of this
     Indenture to be performed or observed by the Company, such
     successor Person shall succeed to and be substituted for the
     Company, with the same effect as if it had been named herein as
     the party of the first part, and the Company thereupon shall be
     relieved of any further liability or obligation hereunder or upon
     the Securities.  Such successor Person thereupon may cause to be
     signed, and may issue either in its own name or in the name of
     BankBoston Corporation, any or all of the Securities issuable
     hereunder which theretofore shall not have been signed by the
     Company and delivered to the Trustee or the Authenticating Agent;
     and, upon the order of such successor Person instead of the
     Company and subject to all the terms, conditions and limitations
     in this Indenture prescribed, the Trustee or the Authenticating
     Agent shall authenticate and deliver any Securities which
     previously shall have been signed and delivered by the officers
     of the Company to the Trustee or the Authenticating Agent for
     authentication, and any Securities which such successor Person
     thereafter shall cause to be signed and delivered to the Trustee
     or the Authenticating Agent for that purpose.  All the Securities
     so issued shall in all respects have the same legal rank and
     benefit under this Indenture as the Securities theretofore or
     thereafter issued in accordance with the terms of this Indenture
     as though all of such Securities had been issued at the date of
     the execution hereof.

               SECTION 10.03. Opinion of Counsel to be Given Trustee.

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<PAGE>
 
               The Trustee, subject to the provisions of Sections 6.01
     and 6.02, may receive an Opinion of Counsel as conclusive
     evidence that any consolidation, merger, sale, conveyance,
     transfer or lease, and any assumption, permitted or required by
     the terms of this Article X complies with the provisions of this
     Article X.

                                 ARTICLE XI
                  SATISFACTION AND DISCHARGE OF INDENTURE

               SECTION 11.01. Discharge of Indenture.

               When (a) the Company shall deliver to the Trustee for
     cancellation all Securities theretofore authenticated (other than
     any Securities which shall have been destroyed, lost or stolen
     and which shall have been replaced or paid as provided in Section
     2.08) and not theretofore cancelled, or (b) all the Securities
     not theretofore cancelled or delivered to the Trustee for
     cancellation shall have become due and payable, or are by their
     terms to become due and payable within one year or are to be
     called for redemption within one year under arrangements
     satisfactory to the Trustee for the giving of notice of
     redemption, and the Company shall deposit with the Trustee, in
     trust, funds sufficient to pay on the Maturity Date or upon
     redemption all of the Securities (other than any Securities which
     shall have been destroyed, lost or stolen and which shall have
     been replaced or paid as provided in Section 2.08) not
     theretofore cancelled or delivered to the Trustee for
     cancellation, including principal and premium, if any, and
     interest due or to become due to the Maturity Date or redemption
     date, as the case may be, but excluding, however, the amount of
     any moneys for the payment of principal of or premium, if any, or
     interest on the Securities (1) theretofore repaid to the Company
     in accordance with the provisions of Section 11.04, or (2) paid
     to any State or to the District of Columbia pursuant to its
     unclaimed property or similar laws, and if in either case the
     Company shall also pay or cause to be paid all other sums payable
     hereunder by the Company, then this Indenture shall cease to be
     of further effect except for the provisions of Sections 2.02,
     2.07, 2.08, 3.01, 3.02, 3.04, 6.06, 6.10 and 11.04 hereof shall
     survive until such Securities shall mature and be paid. 
     Thereafter, Sections 6.10 and 11.04 shall survive, and the
     Trustee, on demand of the Company accompanied by any Officers'
     Certificate and an Opinion of Counsel and at the cost and expense
     of the Company, shall execute proper instruments acknowledging
     satisfaction of and discharging this Indenture, the Company,
     however, hereby agreeing to reimburse the Trustee for any costs
     or expenses thereafter reasonably and properly incurred by the
     Trustee in connection with this Indenture or the Securities.

               SECTION 11.02. Deposited Moneys and U.S. Government
                              Obligations to be Held in Trust by
                              Trustee. 

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<PAGE>
 
               Subject to the provisions of Section 11.04, all moneys
     and U.S. Government Obligations deposited with the Trustee
     pursuant to Sections 11.01 or 11.05 shall be held in trust and
     applied by it to the payment, either directly or through any
     paying agent (including the Company if acting as its own paying
     agent), to the holders of the particular Securities for the
     payment of which such moneys or U.S. Government Obligations have
     been deposited with the Trustee, of all sums due and to become
     due thereon for principal, premium, if any, and interest.

               The Company shall pay and indemnify the Trustee against
     any tax, fee or other charge imposed on or assessed against the
     U.S. Government Obligations deposited pursuant to Section 11.05
     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 outstanding Securities.

               SECTION 11.03. Paying Agent to Repay Moneys Held. 

               Upon the satisfaction and discharge of this Indenture
     all moneys then held by any paying agent of the Securities (other
     than the Trustee) shall, upon written 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 11.04. Return of Unclaimed Moneys. 

               Any moneys deposited with or paid to the Trustee or any
     paying agent for payment of the principal of or premium, if any,
     or interest on Securities and not applied but remaining unclaimed
     by the holders of Securities for two years after the date upon
     which the principal of or premium, if any, or interest on such
     Securities, as the case may be, shall have become due and
     payable, shall be repaid to the Company by the Trustee or such
     paying agent on written demand; and the holder of any of the
     Securities 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 such paying agent with respect to
     such moneys shall thereupon cease.

               SECTION 11.05. Defeasance Upon Deposit of Moneys or
                              U.S. Government Obligations. 

               The Company shall be deemed to have been Discharged (as
     defined below) from its respective obligations with respect to
     the Securities on the 91st day after the applicable conditions
     set forth below have been satisfied with respect to the
     Securities at any time after the applicable conditions set forth
     below have been satisfied:

                                       59
<PAGE>
 
               (1)  The Company shall have deposited or caused to be
                    deposited irrevocably with the Trustee or the
                    Defeasance Agent (as defined below) as trust funds
                    in trust, specifically pledged as security for,
                    and dedicated solely to, the benefit of the
                    holders of the Securities (i) money in an amount,
                    or (ii) U.S. Government Obligations which through
                    the payment of interest and principal in respect
                    thereof in accordance with their terms will
                    provide, not later than one day before the due
                    date of any payment, money in an amount, or (iii)
                    a combination of (i) and (ii), sufficient, in the
                    opinion (with respect to (ii) and (iii)) of a
                    nationally recognized firm of independent public
                    accountants expressed in a written certification
                    thereof delivered to the Trustee and the
                    Defeasance Agent, if any, to pay and discharge
                    each installment of principal of and interest and
                    premium, if any, on the outstanding Securities on
                    the dates such installments of principal, interest
                    or premium are due;

               (2)  if the Securities are then listed on any national
                    securities exchange or interdealer quotation
                    system, the Company shall have delivered to the
                    Trustee and the Defeasance Agent, if any, an
                    Opinion of Counsel to the effect that the exercise
                    of the option under this Section 11.05 would not
                    cause such Securities to be delisted from such
                    exchange or interdealer quotation system;

               (3)  no Default or Event of Default with respect to the
                    Securities shall have occurred and be continuing
                    on the date of such deposit; and

               (4)  the Company shall have delivered to the Trustee
                    and the Defeasance Agent, if any, an Opinion of
                    Counsel to the effect that holders of the
                    Securities will not recognize income, gain or loss
                    for United States Federal income tax purposes as a
                    result of the exercise of the option under this
                    Section 11.05 and will be subject to United States
                    Federal income tax on the same amount and in the
                    same manner and at the same times as would have
                    been the case if such option had not been
                    exercised, and such opinion shall be accompanied
                    by a private letter ruling to that effect received
                    from the United States Internal Revenue Service or
                    a revenue ruling pertaining to a comparable form
                    of transaction to that effect published by the
                    United States Internal Revenue Service.

                                       60
<PAGE>
 
               "Discharged" means that the Company shall be deemed to
     have paid and discharged the entire indebtedness represented by,
     and obligations under, the Securities and to have satisfied all
     the obligations under this Indenture relating to the Securities
     (and the Trustee, at the expense of the Company, shall execute
     proper instruments acknowledging the same), except (A) the rights
     of holders of Securities to receive, from the trust fund
     described in clause (1) above, payment of the principal of and
     the interest and premium, if any, on the Securities when such
     payments are due; (B) the Company's obligations with respect to
     the Securities under Sections 2.07, 2.08, 5.02 and 11.04; and (C)
     the rights, powers, trusts, duties and immunities of the Trustee
     hereunder.

               "Defeasance Agent" means another financial institution
     which is eligible to act as Trustee hereunder and which assumes
     all of the obligations of the Trustee necessary to enable the
     Trustee to act hereunder.  In the event such a Defeasance Agent
     is appointed pursuant to this Section, the following conditions
     shall apply:

               (1)  The Trustee shall have approval rights over the
                    document appointing such Defeasance Agent and the
                    document setting forth such Defeasance Agent's
                    rights and responsibilities;

               (2)  The Defeasance Agent shall provide verification to
                    the Trustee acknowledging receipt of sufficient
                    money and/or U.S. Government Obligations to meet
                    the applicable conditions set forth in this
                    Section 11.05.

                                ARTICLE XII
                  IMMUNITY OF INCORPORATORS, STOCKHOLDERS,
                           OFFICERS AND DIRECTORS

               SECTION 12.01. Indenture and Securities Solely
                              Corporate Obligations. 

               No recourse for the payment of the principal of or
     premium, if any, or interest on any Security, or for any claim
     based thereon or otherwise in respect thereof, and no recourse
     under or upon any obligation, covenant or agreement of the
     Company in this Indenture, or in any Security, or because of the
     creation of any indebtedness represented thereby, shall be had
     against any incorporator, stockholder, officer or director, as
     such, past, present or future, of the Company or of any successor
     Person to the Company, either directly or through the Company or
     any successor Person to the Company, whether by virtue of any
     constitution, statute or rule of law, or by the enforcement of
     any assessment or penalty or otherwise; it being expressly

                                       61
<PAGE>
 
     understood that all such liability is hereby expressly waived and
     released as a condition of, and as a consideration for, the
     execution of this Indenture and the issue of the Securities.

                                ARTICLE XIII
                          MISCELLANEOUS PROVISIONS

               SECTION 13.01. Successors. 

               All the covenants, stipulations, promises and
     agreements in this Indenture contained by the Company shall bind
     its successors and assigns whether so expressed or not.

               SECTION 13.02. Official Acts by Successor Corporation.

               Any act or proceeding by any provision of this
     Indenture authorized or required to be done or performed by any
     board, committee or officer of the Company shall and may be done
     and performed with like force and effect by the like board,
     committee or officer of any corporation that shall at the time be
     the lawful sole successor of the Company.

               SECTION 13.03. Surrender of Company Powers.

               The Company by instrument in writing executed by
     authority of 2/3 (two-thirds) of its Board of Directors and
     delivered to the Trustee may surrender any of the powers reserved
     to the Company, and thereupon such power so surrendered shall
     terminate both as to the Company, as the case may be, and as to
     any successor Person.

               SECTION 13.04. 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 on the Company may be
     given or served by being deposited postage prepaid by registered
     or certified mail in a post office letter box addressed (until
     another address is filed by the Company with the Trustee for the
     purpose) to the Company, 100 Federal Street, MA BOS 01-25-01,
     Boston, Massachusetts 02110, Attention:  General Counsel.  Any
     notice, direction, request or demand by 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 the
     office of the Trustee, addressed to the Trustee, 101 Barclay
     Street, 21 West, New York, New York 10286, Attention:  Corporate
     Trust Administration.

               SECTION 13.05. Governing Law. 

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<PAGE>
 
               This Indenture and each Security shall be deemed to be
     a contract made under the laws of the State of New York, and for
     all purposes shall be governed by and construed in accordance
     with the laws of said State, without regard to conflicts of laws
     principles thereof.

               SECTION 13.06. 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 in the opinion of the signers all
     conditions precedent, if any, 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.

               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 13.07. Business Days.

               Except as otherwise provided in Section 2.06(b), in any
     case where the date of payment of principal of or premium, if
     any, or interest on the Securities will not be a Business Day,
     the payment of such principal of or premium, if any, or interest
     on the Securities need not be made on such date but may be made
     on the next succeeding Business Day, with the same force and
     effect as if made on the date of payment and no interest shall
     accrue for the period from and after such date.

               SECTION 13.08. 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.

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<PAGE>
 
               SECTION 13.09. Table of Contents, Headings, etc. 

               The table of contents and the titles and headings of
     the articles and sections of this Indenture have been inserted
     for convenience of reference only, are not to be considered a
     part hereof, and shall in no way modify or restrict any of the
     terms or provisions hereof.

               SECTION 13.10. 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 13.11. Separability.

               In case any one or more of the provisions contained in
     this Indenture or in the Securities shall for any reason be held
     to be invalid, illegal or unenforceable in any respect, such
     invalidity, illegality or unenforceability shall not affect any
     other provisions of this Indenture or of the Securities, but this
     Indenture and the Securities shall be construed as if such
     invalid or illegal or unenforceable provision had never been
     contained herein or therein.

               SECTION 13.12. Assignment.

               The Company will have the right at all times to assign
     any of its respective rights or obligations under this Indenture
     to a direct or indirect wholly owned Subsidiary of the Company,
     provided that, in the event of any such assignment, the Company,
     as the case may be, will remain liable for all such obligations. 
     Subject to the foregoing, the Indenture is binding upon and
     inures to the benefit of the parties thereto and their respective
     successors and assigns.  This Indenture may not otherwise be
     assigned by the parties thereto.

               SECTION 13.13. Acknowledgement of Rights.

               The Company acknowledges that, with respect to any
     Securities held by the Trust or a trustee of such trust, if the
     Property Trustee of such Trust fails to enforce its rights under
     this Indenture as the holder of the Securities held as the assets
     of the Trust any holder of Capital Securities may institute legal
     proceedings directly against the Company to enforce such Property
     Trustee's rights under this Indenture without first instituting
     any legal proceedings against such Property Trustee or any other
     person or entity.  Notwithstanding the foregoing, if an Event of
     Default has occurred and is continuing and such event is
     attributable to the failure of the Company to pay principal of or
     premium, if any, or interest on the Securities when due, the
     Company acknowledges that a holder of Capital Securities may di-

                                       64
<PAGE>
 
     rectly institute a proceeding for enforcement of payment to
     such holder of the principal of or premium, if any, or interest
     on the Securities having a principal amount equal to the
     aggregate liquidation amount of the Capital Securities of such
     holder on or after the respective due date specified in the
     Securities.

                                ARTICLE XIV
                        REDEMPTION OF SECURITIES  --
                    MANDATORY AND OPTIONAL SINKING FUND

               SECTION 14.01. Special Event Redemption.

               If a Special Event has occurred and is continuing then,
     notwithstanding Section 14.02(a) but subject to Section 14.02(c),
     the Company shall have the right, upon (i) not less than 45 days
     written notice to the Trustee and (ii) not less than 30 days nor
     more than 60 days written notice to the Securityholders, to
     redeem the Securities, in whole (but not in part), within 90 days
     following the occurrence of such Special Event at the Redemption
     Price.  The Redemption Price shall be paid prior to 12:00 noon,
     New York time, on the date of such redemption or such earlier
     time as the Company determines, provided that the Company shall
     deposit with the Trustee an amount sufficient to pay the
     Redemption Price by 10:00 a.m., New York time, on the date such
     Redemption Price is to be paid.

               SECTION 14.02. Optional Redemption by Company.

               (a)  Subject to the provisions of this Article XIV, the
     Company shall have the right to redeem the Securities, in whole
     or in part, from time to time, on or after _______, 2007, at the
     Redemption Price.

               If the Securities are only partially redeemed pursuant
     to this Section 14.02, the Securities will be redeemed pro rata
     or by lot or by any other method utilized by the Trustee;
     provided, that if at the time of redemption the Securities are
     registered as a Global Security, the Depositary shall determine,
     in accordance with its procedures, the principal amount of such
     Securities held by each holder of a Security to be redeemed.  The
     Redemption Price shall be paid prior to 12:00 noon, New York
     time, on the date of such redemption or such earlier time as the
     Company determines, provided that the Company shall deposit with
     the Trustee an amount sufficient to pay the Redemption Price by
     10:00 a.m., New York time, on the date such Redemption Price is
     to be paid.

               (b)  Notwithstanding the first sentence of Section
     14.02, upon the entry of an order for dissolution of the Trust by
     a court of competent jurisdiction, the Securities thereafter will
     be subject to option redemption, in whole only, but not in part,

                                       65
<PAGE>
 
     on or after _______, 2007, at the Redemption Price and otherwise
     in accordance with this Article XIV.

               (c)  Any redemption of Securities pursuant to Section
     14.01 or Section 14.02 shall be subject to the Company obtaining
     the prior approval of the Federal Reserve, if such approval is
     then required under applicable capital guidelines or policies of
     the Federal Reserve.

               SECTION 14.03. No Sinking Fund.

               The Securities are not entitled to the benefit of any
     sinking fund.

               SECTION 14.04. 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 the Securities
     in accordance with their terms, it shall fix a date for
     redemption and shall mail a notice of such redemption at least 30
     and not more than 60 days prior to the date fixed for redemption
     to the holders of Securities so 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 first class mail.  The notice
     if mailed in the manner herein provided shall be conclusively
     presumed to have been duly given, whether or not the holder
     receives such notice.  In any case, failure to give such notice
     by mail or any defect in the notice to the holder of any Security
     designated for redemption as a whole or in part shall not affect
     the validity of the proceedings for the redemption of any other
     Security.

               Each such notice of redemption shall specify the CUSIP
     number of the Securities to be redeemed, the date fixed for
     redemption, the redemption price at which the Securities are to
     be redeemed (or the method by which such redemption price is to
     be calculated), the place or places of payment that payment will
     be made upon presentation and surrender of the Securities, that
     interest accrued to the date fixed for redemption will be paid as
     specified in said notice, and that on and after said date
     interest thereon or on the portions thereof to be redeemed will
     cease to accrue.  If less than all the Securities are to be
     redeemed the notice of redemption 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 on and after the date fixed for redemption, upon
     surrender of such Security, a new Security or Securities in
     principal amount equal to the unredeemed portion thereof will be
     issued.

                                       66
<PAGE>
 
               On or prior to the redemption date specified in the
     notice of redemption given as provided in this Section, the
     Company will deposit with the Trustee or with one or more paying
     agents an amount of money sufficient to redeem on the redemption
     date all the Securities so called for redemption at the
     appropriate Redemption Price, together with accrued interest to
     the date fixed for redemption.

               The Company will give the Trustee notice not less than
     45 days prior to the redemption date as to the aggregate
     principal amount of Securities to be redeemed and the Trustee
     shall select, in such manner as in its sole discretion it shall
     deem appropriate and fair, the Securities or portions thereof (in
     integral multiples of $1,000, except as otherwise set forth in
     the applicable form of Security) to be redeemed.

               SECTION 14.05. Payment of Securities Called for
                              Redemption. 

               If notice of redemption has been given as provided in
     Section 14.04, 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 or places stated in such
     notice at the applicable Redemption Price, together with interest
     accrued to the date fixed for redemption (subject to the rights
     of holders of Securities on the close of business on a regular
     record date in respect of an Interest Payment Date occurring on
     or prior to the redemption date), and on and after said date
     (unless the Company shall default in the payment of such
     Securities at the Redemption Price, together with interest
     accrued to said date) interest on the Securities or portions of
     Securities so called for redemption shall cease to accrue.  On
     presentation and surrender of such Securities at a place of
     payment specified in said notice, the said Securities or the
     specified portions thereof shall be paid and redeemed by the
     Company at the applicable Redemption Price, together with
     interest accrued thereon to the date fixed for redemption
     (subject to the rights of holders of Securities on the close of
     business on a regular record date in respect of an Interest
     Payment Date occurring on or prior to the redemption date).

               Upon presentation of any Security redeemed in part
     only, the Company shall execute and the Trustee shall
     authenticate and make available for delivery to the holder
     thereof, at the expense of the Company, a new Security or
     Securities of authorized denominations, in principal amount equal
     to the unredeemed portion of the Security so presented.

                                       67
<PAGE>
 
                                 ARTICLE XV
                        SUBORDINATION OF SECURITIES

               SECTION 15.01. Agreement to Subordinate. 

               The Company covenants and agrees, and each holder of
     Securities issued hereunder likewise covenants and agrees, that
     the Securities shall be issued subject to the provisions of this
     Article XV; and each holder of a Security, whether upon original
     issue or upon transfer or assignment thereof, accepts and agrees
     to be bound by such provisions.

               The payment by the Company of the principal of and
     premium, if any, and interest on all Securities issued hereunder
     shall, to the extent and in the manner hereinafter set forth, be
     subordinated and junior in right of payment to the prior payment
     in full of all Allocable Amounts with respect to Senior
     Indebtedness, whether outstanding at the date of this Indenture
     or thereafter incurred.

               No provision of this Article XV shall prevent the
     occurrence of any Default or Event of Default hereunder.

               SECTION 15.02. Default on Senior Indebtedness.

               In the event and during the continuation of any default
     by the Company in the payment of principal, premium, interest or
     any other payment due on any Senior Indebtedness, or in the event
     that the maturity of any Senior Indebtedness has been accelerated
     because of a default, then, in either case, no payment shall be
     made by the Company with respect to the principal (including
     redemption payments) of or premium, if any, or interest on the
     Securities.

               In the event of the acceleration of the maturity of the
     Securities, then no payment shall be made by the Company with
     respect to the principal (including redemption payments) of or
     premium, if any, or interest on the Securities until the holders
     of all Senior Indebtedness outstanding at the time of such
     acceleration shall receive payment in full of all Allocable
     Amounts due in respect of such Senior Indebtedness (including any
     amounts due upon acceleration).

               In the event that, notwithstanding the foregoing, any
     payment shall be received by the Trustee when such payment is
     prohibited by the preceding paragraph of this Section 15.02, such
     payment shall be held in trust for the benefit of, and shall be
     paid over or delivered to, the holders of Senior Indebtedness or
     their respective representatives, or to the trustee or trustees
     under any indenture pursuant to which any of such Senior
     Indebtedness may have been issued, as their respective interests
     may appear, but only to the extent of the Allocable Amounts in

                                       68
<PAGE>
 
     respect of such Senior Indebtedness and only to the extent that
     the holders of the Senior Indebtedness (or their representative
     or representatives or a trustee) notify the Trustee in writing,
     within 90 days of such payment, of the Allocable Amounts then due
     and owing on such Senior Indebtedness and only the Allocable
     Amounts specified in such notice to the Trustee shall be paid to
     the holders of such Senior Indebtedness.

               SECTION 15.03. Liquidation; Dissolution; Bankruptcy. 

               Upon any payment by the Company or distribution of
     assets of the Company of any kind or character, whether in cash,
     property or securities, to creditors upon any dissolution or
     winding-up or liquidation or reorganization of the Company,
     whether voluntary or involuntary or in bankruptcy, insolvency,
     receivership or other proceedings, all Allocable Amounts due upon
     all Senior Indebtedness of the Company shall first be paid in
     full, or payment thereof provided for in money in accordance with
     its terms, before any payment is made by the Company on account
     of the principal (and premium, if any) or interest on the
     Securities; and upon any such dissolution or winding-up or
     liquidation or reorganization, any payment by the Company, or
     distribution of assets of the Company of any kind or character,
     whether in cash, property or securities, to which the
     Securityholders or the Trustee would be entitled to receive from
     the Company, except for the provisions of this Article XV, shall
     be paid by the Company or by any receiver, trustee in bankruptcy,
     liquidating trustee, agent or other Person making such payment or
     distribution, or by the Securityholders or by the Trustee under
     the Indenture if received by them or it, directly to the holders
     of Senior Indebtedness of the Company (pro rata to such holders
     on the basis of the respective Allocable Amounts of Senior
     Indebtedness held by such holders, as calculated by the Company)
     or their representative or representatives, or to the trustee or
     trustees under any indenture pursuant to which any instruments
     evidencing such Senior Indebtedness may have been issued, as
     their respective interests may appear, to the extent necessary to
     pay all Allocable Amounts in respect of such Senior Indebtedness
     in full, in money or money's worth, after giving effect to any
     concurrent payment or distribution to or for the holders of such
     Senior Indebtedness, before any payment or distribution is made
     to the Securityholders or to the Trustee.

               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, prohibited by
     the foregoing, shall be received by the Trustee before all
     Allocable Amounts in respect of Senior Indebtedness is paid in
     full, or provision is made for such payment in money in
     accordance with its terms, such payment or distribution shall be
     held in trust for the benefit of and shall be paid over or
     delivered to the holders of such Senior Indebtedness or their
     representa-

                                       69
<PAGE>
 
     tive or representatives, or to the trustee or trustees
     under any indenture pursuant to which any instruments evidencing
     such Senior Indebtedness may have been issued, and their
     respective interests may appear, as calculated by the Company,
     for application to the payment of all Senior Indebtedness
     remaining unpaid to the extent necessary to pay all Allocable
     Amounts in respect of such Senior Indebtedness in full in money
     in accordance with its terms, after giving effect to any
     concurrent payment or distribution to or for the benefit of the
     holders of such Senior Indebtedness.

               For purposes of this Article XV, the words "cash,
     property or securities" shall not be deemed to include shares of
     stock 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
     subordinated at least to the extent provided in this Article XV
     with respect to the Securities to the payment of Senior
     Indebtedness that may at the time be outstanding, provided that
     (i) such Senior Indebtedness is assumed by the new corporation,
     if any, resulting from any such reorganization or readjustment,
     and (ii) the rights of the holders of such Senior Indebtedness
     are not, without the consent of such holders, altered by such
     reorganization or readjustment.  The consolidation of the Company
     with, or the merger of the Company into, another Person or the
     liquidation or dissolution of the Company following the sale,
     conveyance, transfer or lease of its property as an entirety, or
     substantially as an entirety, to another Person upon the terms
     and conditions provided for in Article X of this Indenture shall
     not be deemed a dissolution, winding-up, liquidation or
     reorganization for the purposes of this Section 15.03 if such
     other Person shall, as a part of such consolidation, merger,
     sale, conveyance, transfer or lease, comply with the conditions
     stated in Article X of this Indenture.  Nothing in Section 15.02
     or in this Section 15.03 shall apply to claims of, or payments
     to, the Trustee under or pursuant to Section 6.05 of this
     Indenture.

               SECTION 15.04. Subrogation. 

               Subject to the payment in full of all Allocable Amounts
     in respect of Senior Indebtedness, the rights of the
     Securityholders shall be subrogated to the rights of the holders
     of such Senior Indebtedness to receive payments or distributions
     of cash, property or securities of the Company, as the case may
     be, applicable to such Senior Indebtedness until the principal of
     (and premium, if any) and interest on the Securities shall be
     paid in full; and, for the purposes of such subrogation, no
     payments or distributions to the holders of such Senior
     Indebtedness of any cash, property or securities to which the
     Securityholders or the Trustee would be entitled except for the
     provisions of this Article XV, and no payment over pursuant to
     the provisions of this Article XV to or for the benefit of the

                                       70
<PAGE>
 
     holders of such Senior Indebtedness by Securityholders or the
     Trustee, shall, as between the Company, its creditors other than
     holders of Senior Indebtedness of the Company, and the holders of
     the Securities, be deemed to be a payment by the Company to or on
     account of such Senior Indebtedness.  It is understood that the
     provisions of this Article XV are and are intended solely for the
     purposes of defining the relative rights of the holders of the
     Securities, on the one hand, and the holders of such Senior
     Indebtedness on the other hand.

               Nothing contained in this Article XV or elsewhere in
     this Indenture or in the Securities is intended to or shall
     impair, as between the Company, its creditors other than the
     holders of Senior Indebtedness of the Company, and the holders of
     the Securities, the obligation of the Company, which is absolute
     and unconditional, to pay to the holders of the Securities the
     principal of (and premium, if any) and interest on the Securities
     as and when the same shall become due and payable in accordance
     with their terms, or is intended to or shall affect the relative
     rights of the holders of the Securities and creditors of the
     Company, as the case may be, other than the holders of Senior
     Indebtedness of the Company, as the case may be, nor shall
     anything herein or therein prevent the Trustee or the holder of
     any Security from exercising all remedies otherwise permitted by
     applicable law upon default under the Indenture, subject to the
     rights, if any, under this Article XV of the holders of such
     Senior Indebtedness in respect of cash, property or securities of
     the Company, as the case may be, received upon the exercise of
     any such remedy.

               Upon any payment or distribution of assets of the
     Company referred to in this Article XV, the Trustee, subject to
     the provisions of Article VI of this Indenture, and the
     Securityholders shall be entitled to conclusively rely upon any
     order or decree made by any court of competent jurisdiction in
     which such dissolution, winding-up, liquidation or reorganization
     proceedings are pending, or a certificate of the receiver,
     trustee in bankruptcy, liquidation trustee, agent or other Person
     making such payment or distribution, delivered to the Trustee or
     to the Securityholders, for the purposes of ascertaining the
     Persons entitled to participate in such distribution, the holders
     of Senior Indebtedness and other indebtedness of the Company, as
     the case may be, the amount thereof or payable thereon, the
     amount or amounts paid or distributed thereon and all other facts
     pertinent thereto or to this Article XV.

               SECTION 15.05. Trustee to Effectuate Subordination. 

               Each Securityholder by such Securityholder's acceptance
     thereof authorizes and directs the Trustee on such
     Securityholder's behalf to take such action as may be necessary
     or appropriate to effectuate the subordination provided in this

                                       71
<PAGE>
 
     Article XV and appoints the Trustee such Securityholder's
     attorney-in-fact for any and all such purposes.

               SECTION 15.06. Notice by the Company.

               The Company shall give prompt written notice to a
     Responsible Officer of the Trustee of any fact known to the
     Company that would prohibit the making of any payment of monies
     to or by the Trustee in respect of the Securities pursuant to the
     provisions of this Article XV.  Notwithstanding the provisions of
     this Article XV or any other provision of this Indenture, the
     Trustee shall not be charged with knowledge of the existence of
     any facts that would prohibit the making of any payment of monies
     to or by the Trustee in respect of the Securities pursuant to the
     provisions of this Article XV, unless and until a Responsible
     Officer of the Trustee shall have received written notice thereof
     from the Company or a holder or holders of Senior Indebtedness or
     from any trustee therefor; and before the receipt of any such
     written notice, the Trustee, subject to the provisions of Article
     VI of this Indenture, shall be entitled in all respects to assume
     that no such facts exist; provided, however, that if the Trustee
     shall not have received the notice provided for in this Section
     15.06 at least two Business Days prior to the date upon which by
     the terms hereof any money may become payable for any purpose
     (including, without limitation, the payment of the principal of
     (or premium, if any) or interest on any Security), then, anything
     herein contained to the contrary notwithstanding, the Trustee
     shall have full power and authority to receive such money and to
     apply the same to the purposes for which they were received, and
     shall not be affected by any notice to the contrary that may be
     received by it within two Business Days prior to such date.

               The Trustee, subject to the provisions of Article VI of
     this Indenture, shall be entitled to conclusively rely on the
     delivery to it of a written notice by a Person representing
     himself to be a holder of Senior Indebtedness of the Company, as
     the case may be (or a trustee on behalf of such holder), to
     establish that such notice has been given by a holder of such
     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 such Senior Indebtedness to participate
     in any payment or distribution pursuant to this Article XV, the
     Trustee may request such Person to furnish evidence to the
     reasonable satisfaction of the Trustee as to the amount of such
     Senior Indebtedness held by such Person, the extent to which such
     Person is entitled to participate in such payment or distribution
     and any other facts pertinent to the rights of such Person under
     this Article XV, 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.

                                       72
<PAGE>
 
               Upon any payment or distribution of assets of the
     Company referred to in this Article XV, the Trustee and the
     Securityholders shall be entitled to rely upon any order or
     decree entered by any court of competent jurisdiction in which
     such insolvency, bankruptcy, receivership, liquidation,
     reorganization, dissolution, winding up or similar case or
     proceeding is pending, or a certificate of the trustee in
     bankruptcy, liquidating trustee, custodian, receiver, assignee
     for the benefit of creditors, agent or other person making such
     payment or distribution, delivered to the Trustee or to the
     Securityholders, for the purpose of ascertaining the persons
     entitled to participate in such payment or distribution, the
     holders of 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 XV.

               SECTION 15.07. Rights of the Trustee; Holders of Senior
                              Indebtedness.

               The Trustee in its individual capacity shall be
     entitled to all the rights set forth in this Article XV in
     respect of any Senior Indebtedness at any time held by it, to the
     same extent as any other holder of Senior Indebtedness, and
     nothing in this Indenture shall deprive the Trustee of any of its
     rights as such holder.

               With respect to the holders of Senior Indebtedness of
     the Company, the Trustee undertakes to perform or to observe only
     such of its covenants and obligations as are specifically set
     forth in this Article XV, and no implied covenants or obligations
     with respect to the holders of such Senior Indebtedness shall be
     read into this Indenture against the Trustee.  The Trustee shall
     not be deemed to owe any fiduciary duty to the holders of such
     Senior Indebtedness and, subject to the provisions of Article VI
     of this Indenture, the Trustee shall not be liable to any holder
     of such Senior Indebtedness if it shall pay over or deliver to
     Securityholders, the Company or any other Person money or assets
     to which any holder of such Senior Indebtedness shall be entitled
     by virtue of this Article XV or otherwise.

               Nothing in this Article XV shall apply to claims of, or
     payments to, the Trustee under or pursuant to Section 6.06.

               SECTION 15.08. Subordination May Not Be Impaired. 

               No right of any present or future holder of any Senior
     Indebtedness of the Company to enforce subordination as herein
     provided shall at any time in any way be prejudiced or impaired
     by any act or failure to act on the part of the Company, as the

                                       73
<PAGE>
 
     case may be, or by any act or failure to act, in good faith, by
     any such holder, or by any noncompliance by the Company, as the
     case may be, with the terms, provisions and covenants of this
     Indenture, regardless of any knowledge thereof that any such
     holder may have or otherwise be charged with.

               Without in any way limiting the generality of the
     foregoing paragraph, the holders of Senior Indebtedness of the
     Company may, at any time and from time to time, without the
     consent of or notice to the Trustee or the Securityholders,
     without incurring responsibility to the Securityholders and
     without impairing or releasing the subordination provided in this
     Article XV or the obligations hereunder of the holders of the
     Securities to the holders of such Senior Indebtedness, do any one
     or more of the following:  (i) change the manner, place or terms
     of payment or extend the time of payment of, or renew or alter,
     such Senior Indebtedness, or otherwise amend or supplement in any
     manner such Senior Indebtedness or any instrument evidencing the
     same or any agreement under which such Senior Indebtedness is
     outstanding; (ii) sell, exchange, release or otherwise deal with
     any property pledged, mortgaged or otherwise securing such Senior
     Indebtedness; (iii) release any Person liable in any manner for
     the collection of such Senior Indebtedness; and (iv) exercise or
     refrain from exercising any rights against the Company, as the
     case may be, and any other Person.

                                ARTICLE XVI
                    EXTENSION OF INTEREST PAYMENT PERIOD

               SECTION 16.01. Extension of Interest Payment Period.

               So long as no Event of Default has occurred and is
     continuing, the Company shall have the right, at any time and
     from time to time during the term of the Securities, to defer
     payments of interest by extending the interest payment period of
     such Securities for a period not exceeding 20 consecutive
     quarterly periods, including the first such quarterly period
     during such extension period (the "Extended Interest Payment
     Period"), during which Extended Interest Payment Period no
     interest shall be due and payable; provided that no Extended
     Interest Payment Period may extend beyond the Maturity Date.  To
     the extent permitted by applicable law, interest, the payment of
     which has been deferred because of the extension of the interest
     payment period pursuant to this Section 16.01, will bear interest
     thereon at the Interest Rate then in effect compounded quarterly
     for each quarterly period of the Extended Interest Payment Period
     ("Compounded Interest").  At the end of the Extended Interest
     Payment Period, the Company shall pay all interest accrued and
     unpaid on the Securities, including any Additional Interest and
     Compounded Interest (together, "Deferred Interest") that shall be
     payable to the holders of the Securities in whose names the
     Securities are registered in the Security Register on the first
     record date after the end of the Extended Interest Payment
     Period.  Before 

                                       74
<PAGE>
 
     the termination of any Extended Interest Payment Period, the Company may
     further defer payments of interest by further extending such period,
     provided that such period, together with all such previous and further
     extensions within such Extended Interest Payment Period, shall not exceed
     20 consecutive quarterly periods, including the first such quarterly period
     during such Extended Interest Payment Period, or extend beyond the Maturity
     Date of the Securities. Upon the termination of any Extended Interest
     Payment Period and the payment of all Deferred Interest then due, the
     Company may commence a new Extended Interest Payment Period, subject to the
     foregoing requirements. No interest shall be due and payable during an
     Extended Interest Payment Period, except at the end thereof, but the
     Company may prepay at any time all or any portion of the interest accrued
     during an Extended Interest Payment Period. Compounded Interest shall be
     treated as interest for all purposes under this Indenture.

               SECTION 16.02. Notice of Extension.

               (a)  If the Property Trustee is the only registered
     holder of the Securities at the time the Company selects an
     Extended Interest Payment Period, the Company shall give written
     notice to the Administrative Trustees, the Property Trustee and
     the Trustee of its selection of such Extended Interest Payment
     Period five Business Days before the earlier of (i) the next
     succeeding date on which distributions on the Trust Securities
     issued by the Trust are payable, or (ii) the date the Trust is
     required to give notice of the record date, or the date such
     distributions are payable, to any national securities exchange or
     interdealer quotation system or to holders of the Capital
     Securities issued by the Trust, but in any event at least five
     Business Days before such record date.

               (b)  If the Property Trustee is not the only holder of
     the Securities at the time the Company selects an Extended
     Interest Payment Period, the Company shall give the holders of
     the Securities and the Trustee written notice of its selection of
     such Extended Interest Payment Period at least 10 Business Days
     before the earlier of (i) the next succeeding Interest Payment
     Date, or (ii) the date the Company is required to give notice of
     the record or payment date of such interest payment to any
     national securities exchange or interdealer quotation system.

               (c)  The quarterly period in which any notice is given
     pursuant to paragraphs (a) or (b) of this Section 16.02 shall be
     counted as one of the 20 quarterly periods permitted in the
     maximum Extended Interest Payment Period permitted under Section
     16.01.

                                       75
<PAGE>
 
               The Bank of New York hereby accepts the trusts in this
     Indenture declared and provided, upon the terms and conditions
     hereinabove set forth.

               IN WITNESS WHEREOF, the parties hereto have caused this
     Indenture to be duly executed by their respective officers
     thereunto duly authorized, as of the day and year first above
     written.

                                   BANKBOSTON CORPORATION

                                   By ____________________________
                                      Name:  
                                      Title: 
                                             

                                   THE BANK OF NEW YORK,
                                   as Property Trustee

                                   By ____________________________
                                      Name:
                                      Title:


     (Indenture)

                                       76
<PAGE>
 
                                 EXHIBIT A

                         (FORM OF FACE OF SECURITY)

               [IF THE SECURITY IS A GLOBAL SECURITY, INSERT:  - THIS
     SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE
     HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A
     DEPOSITARY OR A NOMINEE OF A DEPOSITARY.  THIS SECURITY IS
     EXCHANGEABLE FOR SECURITIES REGISTERED IN THE NAME OF A PERSON
     OTHER THAN THE DEPOSITARY OR ITS NOMINEE ONLY IN THE LIMITED
     CIRCUMSTANCES DESCRIBED IN THE INDENTURE, AND NO TRANSFER OF THIS
     SECURITY (OTHER THAN A TRANSFER OF THIS SECURITY AS A WHOLE BY
     THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF
     THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE
     DEPOSITARY) MAY BE REGISTERED EXCEPT IN LIMITED CIRCUMSTANCES.

               UNLESS THIS SECURITY IS PRESENTED BY AN AUTHORIZED
     REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK
     CORPORATION ("DTC") TO THE ISSUER OR ITS AGENT FOR REGISTRATION
     OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY SECURITY ISSUED IS
     REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS
     REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT
     HEREON IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS
     REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER,
     PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY
     PERSON IS WRONGFUL IN AS MUCH AS SINCE THE REGISTERED OWNER
     HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.]

     No.                                   CUSIP No. ______________

                                      A-1
<PAGE>
 
                           BANKBOSTON CORPORATION

                     FLOATING RATE JUNIOR SUBORDINATED
                       DEFERRABLE INTEREST DEBENTURE
                             DUE _______, 2027

               BankBoston Corporation, a Massachusetts corporation
     (the "Company", which term includes any successor Person under
     the Indenture hereinafter referred to), for value received,
     hereby promises to pay to The Bank of New York as Property
     Trustee for BankBoston Capital Trust III or registered assigns,
     the principal sum of _____________ Dollars on _______, 2027 (the
     "Maturity Date"), unless previously redeemed, and to pay interest
     on the outstanding principal amount hereof from _______, 1997, or
     from the most recent interest payment date (each such date, an
     "Interest Payment Date") to which interest has been paid or duly
     provided for, quarterly (subject to deferral as set forth herein)
     in arrears on _______, _______, _______, and _______ of each
     year, commencing _______, 1997, at the Interest Rate (as defined
     in the Indenture (as defined below)) until the principal hereof
     shall have become due and payable, and on any overdue principal
     and premium, if any, at the Interest Rate and (without
     duplication and to the extent that payment of such interest is
     enforceable under applicable law) on any overdue installment of
     interest at the Interest Rate compounded quarterly from the
     relevant Interest Payment Date.  Interest payable on each
     Interest Payment Date shall include interest accrued from and
     including the immediately preceding Interest Payment Date (or, if
     no interest has been paid or duly provided for, the date of
     original issuance) to but excluding such Interest Payment Date
     (each, an "Interest Period").  If an Interest Payment Date is not
     a Business Day, then such Interest Payment Date and the first day
     of the Interest Period commencing on such Interest Payment Date
     shall be postponed to the next succeeding Business Day, except if
     such Business Day is in the next succeeding calendar month, such
     Interest Payment Date and the first day of such Interest Period
     will be the immediately preceding Business Day.  If the Maturity
     Date falls on a day that is not a Business Day, payment of the
     interest payable on such date will be made on the next succeeding
     day that is a Business Day, and no interest or other payment will
     accrue from and after the Maturity Date.  The amount of interest
     payable for any Interest Period shall be computed on the basis of
     the actual number of days elapsed in such period and a year of
     360 days.

               The interest installment so payable, and punctually
     paid or duly provided for, on any Interest Payment Date will, as
     provided in the Indenture, be paid to the person in whose name
     this Security (or one or more Predecessor Securities, as defined
     in said Indenture) is registered at the close of business on the
     regular record date for such interest installment, which shall be
     the __________, __________, __________ and ___________ prior to


                                      A-2
<PAGE>
 
     the applicable Interest Payment Date.  Any such interest
     installment not punctually paid or duly provided for shall
     forthwith cease to be payable to the holders on such regular
     record date and may be paid to the Person in whose name this
     Security (or one or more Predecessor Securities) is registered at
     the close of business on a special record date to be fixed by the
     Trustee for the payment of such defaulted interest, notice
     whereof shall be given to the holders of Securities not less than
     10 days prior to such special record date, or may be paid at any
     time in any other lawful manner not inconsistent with the
     requirements of any securities exchange or interdealer quotation
     system on which the Securities may be listed, and upon such
     notice as may be required by such exchange or interdealer
     quotation system, all as more fully provided in the Indenture.

               The principal of (and premium, if any) and interest on
     this Security shall be payable at the office or agency of the
     Trustee maintained for that purpose in any coin or currency of
     the United States of America that at the time of payment is legal
     tender for payment of public and private debts; provided,
     however, that, payment of interest may be made at the option of
     the Company by (i) check mailed to the holder at such address as
     shall appear in the Security Register or (ii) by transfer to an
     account maintained by the Person entitled thereto, provided that
     proper written transfer instructions have been received by the
     relevant record date.  Notwithstanding the foregoing, so long as
     the Holder of this Security is the Property Trustee, the payment
     of the principal of (and premium, if any) and interest on this
     Security will be made at such place and to such account as may be
     designated by the Property Trustee.

               The indebtedness evidenced by this Security is, to the
     extent provided in the Indenture, subordinate and junior in right
     of payment to the prior payment in full of all Allocable Amounts
     in respect of Senior Indebtedness, and this Security is issued
     subject to the provisions of the Indenture with respect thereto. 
     Each holder of this Security, by accepting the same, (a) agrees
     to and shall be bound by such provisions, (b) authorizes and
     directs the Trustee on his or her behalf to take such action as
     may be necessary or appropriate to acknowledge or effectuate the
     subordination so provided and (c) appoints the Trustee his or her
     attorney-in-fact for any and all such purposes.  Each holder
     hereof, by his or her acceptance hereof, hereby waives all notice
     of the acceptance of the subordination provisions contained
     herein and in the Indenture by each holder of Senior
     Indebtedness, whether now outstanding or hereafter incurred, and
     waives reliance by each such holder upon said provisions.


                                      A-3
<PAGE>
 
               This Security shall not be entitled to any benefit
     under the Indenture hereinafter referred to, be valid or become
     obligatory for any purpose until the Certificate of
     Authentication hereon shall have been signed by or on behalf of
     the Trustee.

               THIS SECURITY IS NOT A SAVINGS OR DEPOSIT ACCOUNT OR
     OTHER OBLIGATION OF A BANK AND IS NOT INSURED BY THE FEDERAL
     DEPOSIT INSURANCE CORPORATION OR ANY OTHER GOVERNMENTAL AGENCY.

               The provisions of this Security are continued on the
     reverse side hereof and such provisions shall for all purposes
     have the same effect as though fully set forth at this place.

               IN WITNESS WHEREOF, the Company has caused this
     instrument to be executed.

                                   BANKBOSTON CORPORATION

                                   By: ____________________________
                                   Name:
                                   Title

     Attest:

     By: _______________________
     Name:
     Title:

                  (FORM OF CERTIFICATE OF AUTHENTICATION)

                       CERTIFICATE OF AUTHENTICATION

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

     Dated ______________

     The Bank of New York,
     as Trustee

     By____________________
       Authorized Signatory


                                      A-4
<PAGE>
 
                       (FORM OF REVERSE OF SECURITY)

               This Security is one of the Securities of the Company
     (herein sometimes referred to as the "Securities"), specified in
     the Indenture, all issued or to be issued under and pursuant to
     an Indenture, dated as of _______, 1997 (the "Indenture"), duly
     executed and delivered between the Company and The Bank of New
     York, as Trustee (the "Trustee"), to which Indenture reference is
     hereby made for a description of the rights, limitations of
     rights, obligations, duties and immunities thereunder of the
     Trustee, the Company and the holders of the Securities.

               Upon the occurrence and continuation of a Special
     Event, the Company shall have the right to redeem this Security
     in whole (but not in part) at the Redemption Price.  "Redemption
     Price" shall mean, with respect to any redemption of the
     Securities, an amount in cash equal to 100% of the principal
     amount of Securities to be redeemed plus any accrued and unpaid
     interest thereon, including Compounded Interest and Additional
     Interest, if any, to the date of such redemption.

               In addition, the Company shall have the right to redeem
     this Security, in whole or in part, at any time on or after
     _______, 2007 (an "Optional Redemption"), at the Redemption
     Price.

               The Redemption Price shall be paid prior to 12:00 noon,
     New York time, on the date of such redemption or at such earlier
     time as the Company determines, provided, that the Company shall
     deposit with the Trustee an amount sufficient to pay the
     Redemption Price by 10:00 a.m., New York City time, on the date
     such Redemption Price is to be paid.  Any redemption pursuant to
     this paragraph will be made upon not less than 30 days nor more
     than 60 days notice.  If the Securities are only partially
     redeemed by the Company pursuant to an Optional Redemption, the
     Securities will be redeemed pro rata or by lot or by any other
     method utilized by the Trustee; provided that if, at the time of
     redemption, the Securities are registered as a Global Security,
     the Depositary shall determine the particular Securities to be
     redeemed in accordance with its procedures.

               In the event of redemption of this Security in part
     only, a new Security or Securities for the unredeemed portion
     hereof will be issued in the name of the holder hereof upon the
     cancellation hereof.

               Notwithstanding the foregoing, any redemption of
     Securities by the Company shall be subject to the prior approval
     of the Board of Governors of the Federal Reserve System (the
     "Federal Reserve"), if such approval is then required under
     capital guidelines or policies of the Federal Reserve.

                                      A-5
<PAGE>
 
               In case an Event of Default, as defined in the
     Indenture, shall have occurred and be continuing, the principal
     of all of the Securities may be declared, and upon such
     declaration shall become, due and payable, in the manner, with
     the effect and subject to the conditions provided in the
     Indenture.

               The Indenture contains provisions permitting the
     Company and the Trustee, with the consent of the holders of a
     majority in aggregate principal amount of the Securities at the
     time outstanding, as defined in the Indenture, to execute
     supplemental indentures for the purpose of adding any provisions
     to or changing in any manner or eliminating any of the provisions
     of the Indenture or of modifying in any manner the rights of the
     holders of the Securities; provided, however, that no such
     supplemental indenture shall, without the consent of each holder
     of Securities then outstanding and affected thereby, (i) extend
     the Maturity Date of any Securities, or reduce the principal
     amount thereof, or reduce any amount payable on redemption
     thereof, or reduce the rate or extend the time of payment of
     interest thereon (subject to Article XVI of the Indenture), or
     make the principal of, or interest or premium on, the Securities
     payable in any coin or currency other than U.S. dollars, or
     impair or affect the right of any holder of Securities to
     institute suit for the payment thereof, or (ii) reduce the
     aforesaid percentage of Securities, the holders of which are
     required to consent to any such supplemental indenture.  The
     Indenture also contains provisions permitting the holders of a
     majority in aggregate principal amount of the Securities at the
     time outstanding affected thereby, on behalf of all of the
     holders of the Securities, to waive any past default in the
     performance of any of the covenants contained in the Indenture,
     or established pursuant to the Indenture, and its consequences,
     except a default in the payment of the principal of or premium,
     if any, or interest on any of the Securities or a default in
     respect of any covenant or provision under which the Indenture
     cannot be modified or amended without the consent of each holder
     of Securities then outstanding.  Any such consent or waiver by
     the holder of this Security (unless revoked as provided in the
     Indenture) shall be conclusive and binding upon such Holder and
     upon all future holders and owners of this Security and of any
     Security issued in exchange heretofore or in place hereof
     (whether by registration of transfer or otherwise), irrespective
     of whether or not any notation of such consent or waiver is made
     upon this Security. 

               No reference herein to the Indenture and no provision
     of this Security or of the Indenture shall alter or impair the
     obligation of the Company, which is absolute and unconditional,
     to pay the principal of and premium, if any, and interest on this
     Security at the time and place and at the rate and in the money
     herein prescribed.

                                      A-6
<PAGE>
 
               So long as no Event of Default has occurred and is
     continuing, the Company shall have the right, at any time and
     from time to time during the term of the Securities, to defer
     payments of interest by extending the interest payment period of
     such Securities for a period not exceeding 20 consecutive
     quarterly periods, including the first such quarterly period
     during such extension period (an "Extended Interest Payment
     Period"), at the end of which period the Company shall pay all
     interest then accrued and unpaid (together with interest thereon
     at the Interest Rate to the extent that payment of such interest
     is enforceable under applicable law); provided that no Extended
     Interest Payment Period may extend beyond the Maturity Date. 
     Before the termination of any such Extended Interest Payment
     Period, the Company may further defer payments of interest by
     further extending such Extended Interest Payment Period, provided
     that such Extended Interest Payment Period, together with all
     such previous and further extensions within such Extended
     Interest Payment Period, shall not exceed 20 consecutive
     quarterly periods, including the first quarterly period during
     such Extended Interest Payment Period, or extend beyond the
     Maturity Date of the Securities.  Upon the termination of any
     such Extended Interest Payment Period and the payment of all
     accrued and unpaid interest and any additional amounts then due,
     the Company may commence a new Extended Interest Payment Period,
     subject to the foregoing requirements.

               The Company has agreed that it will not (i) declare or
     pay any dividends or distributions on, or redeem, purchase,
     acquire, or make a liquidation payment with respect to, any of
     the Company's capital stock (which includes common and preferred
     stock) or (ii) make any payment of principal, interest or
     premium, if any, on or repay or repurchase or redeem any debt
     securities of the Company that rank pari passu with or junior in
     right of payment to the Securities or make any guarantee payments
     with respect to any guarantee by the Company of the debt
     securities or any Subsidiary of the Company if such guarantee
     ranks pari passu or junior in right of payment to the Securities
     (other than (a) dividends or distributions in shares of, or
     options, warrants or rights to subscribe for or purchase shares
     of, Common Stock of the Company, (b) any declaration of a
     dividend in connection with the implementation of a stockholder's
     rights plan, or the issuance of stock under any such plan in the
     future, or the redemption or repurchase of any such rights
     pursuant thereto, (c) payments under the Capital Securities
     Guarantee (d) as a result of a reclassification of the Company's
     capital stock or the exchange or the conversion of one class or
     series of the Company's capital stock for another class or series
     of the Company's capital stock (e) the purchase of fractional
     interests in shares of the Company's capital stock pursuant to
     the exchange or conversion of such capital stock or the security
     being exchanged or converted and (f) purchases of Common Stock
     related to the issuance of Common Stock or rights under any of
     the Company's 

                                      A-7
<PAGE>
 
     benefit plans for its directors, officers or employees or any of the
     Company's dividend reinvestment plans) if at such time (i) there shall have
     occurred any event of which the Company has actual knowledge that (a) is,
     or with the giving of notice or the lapse of time, or both, would be, an
     Event of Default and (b) in respect of which the Company shall not have
     taken reasonable steps to cure, (ii) if such Securities are held by the
     Trust, the Company shall be in default with respect to its payment of any
     obligations under the Capital Securities Guarantee or (iii) the Company
     shall have given notice of its election of the exercise of its right to
     extend the interest payment period and any such extension shall be
     continuing.

               Subject to the prior approval of the Federal Reserve if
     such approval is then required under capital guidelines or
     policies of the Federal Reserve, the Company will have the right
     at any time to liquidate the Trust and cause the Securities to be
     distributed to the holders of the Trust Securities in liquidation
     of the Trust.

               The Securities are issuable only in registered form
     without coupons in denominations of $1,000.00 and any integral
     multiple thereof.  As provided in the Indenture and subject to
     certain limitations therein set forth, this Security is
     transferable by the holder hereof on the Security Register of the
     Company, upon surrender of this Security for registration of
     transfer at the office or agency of the Trustee in the City and
     State of New York accompanied by a written instrument or
     instruments of transfer in form satisfactory to the Company or
     the Trustee duly executed by the holder hereof or his attorney
     duly authorized in writing, and thereupon one or more new
     Securities of authorized denominations and for the same aggregate
     principal amount will be issued to the designated transferee or
     transferees.  No service charge will be made for any such
     transfer, but the Company may require payment of a sum sufficient
     to cover any tax or other governmental charge payable in relation
     thereto.

               Prior to due presentment for registration of transfer
     of this Security, the Company, the Trustee, any paying agent and
     the registrar may deem and treat the holder hereof as the
     absolute owner hereof (whether or not this Security shall be
     overdue and notwithstanding any notice of ownership or writing
     hereon made by anyone other than the Security registrar) for the
     purpose of receiving payment of or on account of the principal
     hereof and premium, if any, and interest due hereon and for all
     other purposes, and neither the Company nor the Trustee nor any
     paying agent nor any registrar shall be affected by any notice to
     the contrary.

               No recourse shall be had for the payment of the
     principal of or premium, if any, or interest on this Security, or
     for any claim based hereon, or otherwise in respect hereof, or
     based 

                                      A-8
<PAGE>
 
     on or in respect of the Indenture, against any incorporator, stockholder,
     officer or director, past, present or future, as such, of the Company or of
     any predecessor or successor Person, whether by virtue of any constitution,
     statute or rule of law, or by the enforcement of any assessment or penalty
     or otherwise, all such liability being, by the acceptance hereof and as
     part of the consideration for the issuance hereof, expressly waived and
     released.

               All terms used in this Security that are defined in the
     Indenture shall have the meanings assigned to them in the
     Indenture. 

               THE INDENTURE AND THE SECURITIES SHALL BE GOVERNED BY
     AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW
     YORK WITHOUT REGARD TO CONFLICT OF LAW PROVISIONS THEREOF.

                                      A-9

<PAGE>
                                                                EXHIBIT 4.5 


                       AMENDED AND RESTATED DECLARATION

                                   OF TRUST

                         BANKBOSTON CAPITAL TRUST III

                          Dated as of _______, 1997

                                                                   
<PAGE>
 
                               TABLE OF CONTENTS
                                                                      Page

                                   ARTICLE I
                         INTERPRETATION AND DEFINITIONS

          SECTION 1.1    Definitions . . . . . . . . . . . . . . . . .   2

                                   ARTICLE II
                              TRUST INDENTURE ACT

          SECTION 2.1    Trust Indenture Act; Application  . . . . . .   9
          SECTION 2.2    Lists of Holders of Securities  . . . . . . .   9
          SECTION 2.3    Reports by the Property Trustee . . . . . . .  10
          SECTION 2.4    Periodic Reports to Property Trustee  . . . .  10
          SECTION 2.5    Evidence of Compliance with Conditions
                         Precedent . . . . . . . . . . . . . . . . . .  10
          SECTION 2.6    Events of Default; Waiver . . . . . . . . . .  10
          SECTION 2.7    Event of Default; Notice  . . . . . . . . . .  12

                                  ARTICLE III
                                  ORGANIZATION

          SECTION 3.1    Name  . . . . . . . . . . . . . . . . . . . .  13
          SECTION 3.2    Office  . . . . . . . . . . . . . . . . . . .  13
          SECTION 3.3    Purpose . . . . . . . . . . . . . . . . . . .  14
          SECTION 3.4    Authority . . . . . . . . . . . . . . . . . .  14
          SECTION 3.5    Title to Property of the Trust  . . . . . . .  14
          SECTION 3.6    Powers and Duties of the Administrative
                         Trustees  . . . . . . . . . . . . . . . . . .  14
          SECTION 3.7    Prohibition of Actions by the Trust and the
                         Trustees  . . . . . . . . . . . . . . . . . .  18
          SECTION 3.8    Powers and Duties of the Property Trustee . .  19
          SECTION 3.9    Certain Duties and Responsibilities of the
                         Property Trustee  . . . . . . . . . . . . . .  21
          SECTION 3.10   Certain Rights of Property Trustee  . . . . .  23
          SECTION 3.11   Delaware Trustee  . . . . . . . . . . . . . .  26
          SECTION 3.12   Execution of Documents  . . . . . . . . . . .  26
          SECTION 3.13   Not Responsible for Recitals or Issuance of
                         Securities  . . . . . . . . . . . . . . . . .  26
          SECTION 3.14   Duration of Trust . . . . . . . . . . . . . .  26
          SECTION 3.15   Mergers . . . . . . . . . . . . . . . . . . .  26

                                   ARTICLE IV
                                    SPONSOR

          SECTION 4.1    Sponsor's Purchase of Common Securities . . .  28
          SECTION 4.2    Responsibilities of the Sponsor . . . . . . .  28
          SECTION 4.3    Right to Proceed  . . . . . . . . . . . . . .  29

                                   ARTICLE V
                                    TRUSTEES

                                       i
<PAGE>
 
          SECTION 5.1    Number of Trustees: Appointment of Co-
                         Trustee . . . . . . . . . . . . . . . . . . .  29
          SECTION 5.2    Delaware Trustee  . . . . . . . . . . . . . .  30
          SECTION 5.3    Property Trustee; Eligibility . . . . . . . .  30
          SECTION 5.4    Certain Qualifications of Administrative
                         Trustees and Delaware Trustee Generally . . .  32
          SECTION 5.5    Administrative Trustees . . . . . . . . . . .  32
          SECTION 5.6    Delaware Trustee. . . . . . . . . . . . . . .  32
          SECTION 5.7    Appointment, Removal and Resignation of
                         Trustees  . . . . . . . . . . . . . . . . . .  33


                                                                       Page

          SECTION 5.8    Vacancies among Trustees  . . . . . . . . . .  34
          SECTION 5.9    Effect of Vacancies . . . . . . . . . . . . .  34
          SECTION 5.10   Meetings  . . . . . . . . . . . . . . . . . .  35
          SECTION 5.11   Delegation of Power . . . . . . . . . . . . .  35
          Section 5.12   Merger, Conversion, Consolidation or
                         Succession to Business  . . . . . . . . . . .  36

                                   ARTICLE VI
                                 DISTRIBUTIONS

          SECTION 6.1    Distributions . . . . . . . . . . . . . . . .  36

                                  ARTICLE VII
                             ISSUANCE OF SECURITIES

          SECTION 7.1    General Provisions Regarding Securities . . .  37
          SECTION 7.2    Execution and Authentication  . . . . . . . .  37
          SECTION 7.3    Form and Dating . . . . . . . . . . . . . . .  38
          SECTION 7.4    Registrar and Paying Agent  . . . . . . . . .  40
          SECTION 7.5    Paying Agent to Hold Money in Trust . . . . .  40
          SECTION 7.6    Replacement Securities  . . . . . . . . . . .  40
          SECTION 7.7    Outstanding Capital Securities  . . . . . . .  41
          SECTION 7.8    Capital Securities in Treasury  . . . . . . .  41
          SECTION 7.9    Temporary Securities  . . . . . . . . . . . .  41
          SECTION 7.10   Cancellation  . . . . . . . . . . . . . . . .  43

                                  ARTICLE VIII
                              TERMINATION OF TRUST

          SECTION 8.1    Termination of Trust  . . . . . . . . . . . .  43

                                   ARTICLE IX
                             TRANSFER OF INTERESTS

          SECTION 9.1    Transfer of Securities  . . . . . . . . . . .  44
          SECTION 9.2    Transfer Procedures and Restrictions  . . . .  45
          SECTION 9.3    Deemed Security Holders . . . . . . . . . . .  49
          SECTION 9.4    Book Entry Interests  . . . . . . . . . . . .  49
          SECTION 9.5    Notices to Clearing Agency  . . . . . . . . .  50
          SECTION 9.6    Appointment of Successor Clearing Agency  . .  50

                                       ii
<PAGE>
 
                                   ARTICLE X
                           LIMITATION OF LIABILITY OF
                   HOLDERS OF SECURITIES, TRUSTEES OR OTHERS

          SECTION 10.1   Liability . . . . . . . . . . . . . . . . . .  50
          SECTION 10.2   Exculpation . . . . . . . . . . . . . . . . .  51
          SECTION 10.3   Fiduciary Duty  . . . . . . . . . . . . . . .  51
          SECTION 10.4   Indemnification . . . . . . . . . . . . . . .  52
          SECTION 10.5   Outside Businesses  . . . . . . . . . . . . .  56

                                   ARTICLE XI
                                   ACCOUNTING

          SECTION 11.1   Fiscal Year . . . . . . . . . . . . . . . . .  56
          SECTION 11.2   Certain Accounting Matters  . . . . . . . . .  56
          SECTION 11.3   Banking . . . . . . . . . . . . . . . . . . .  57
          SECTION 11.4   Withholding . . . . . . . . . . . . . . . . .  57

                                  ARTICLE XII
                            AMENDMENTS AND MEETINGS

          SECTION 12.1   Amendments  . . . . . . . . . . . . . . . . .  58
          SECTION 12.2   Meetings of the Holders of Securities;
                         Action by Written Consent . . . . . . . . . .  60

                                  ARTICLE XIII
                      REPRESENTATIONS OF PROPERTY TRUSTEE
                              AND DELAWARE TRUSTEE

          SECTION 13.1   Representations and Warranties of Property
                         Trustee . . . . . . . . . . . . . . . . . . .  62
          SECTION 13.2   Representations and Warranties of Delaware
                         Trustee . . . . . . . . . . . . . . . . . . .  63

                                  ARTICLE XIV
                                 MISCELLANEOUS

          SECTION 14.1   Notices . . . . . . . . . . . . . . . . . . .  63
          SECTION 14.2   Governing Law . . . . . . . . . . . . . . . .  65
          SECTION 14.3   Intention of the Parties  . . . . . . . . . .  65
          SECTION 14.4   Headings  . . . . . . . . . . . . . . . . . .  65
          SECTION 14.5   Successors and Assigns  . . . . . . . . . . .  65
          SECTION 14.6   Partial Enforceability  . . . . . . . . . . .  65
          SECTION 14.7   Counterparts  . . . . . . . . . . . . . . . .  65
          ANNEX I        TERMS OF SECURITIES . . . . . . . . . . . . . I-1
          EXHIBIT A-1    FORM OF CAPITAL SECURITY CERTIFICATE  . . .  A1-1
          EXHIBIT A-2    FORM OF COMMON SECURITY CERTIFICATE . . . .  A2-1
          EXHIBIT B      SPECIMEN OF DEBENTURE . . . . . . . . . . . . B-1
          EXHIBIT C      PURCHASE AGREEMENT  . . . . . . . . . . . . . C-1

                                      iii
<PAGE>
 
                            CROSS-REFERENCE TABLE*

               Section of
          Trust Indenture Act                     Section of
          of 1939, as amended                     Declaration

          310(a)  . . . . . . . . . . . . . . . . .
          310(c)  . . . . . . . . . . . . . . . . .
          311(c)  . . . . . . . . . . . . . . . . .
          312(a)  . . . . . . . . . . . . . . . . .
          312(b)  . . . . . . . . . . . . . . . . .
          313 . . . . . . . . . . . . . . . . . . .
          314(a)  . . . . . . . . . . . . . . . . .
          314(b)  . . . . . . . . . . . . . . . . .
          314(c)  . . . . . . . . . . . . . . . . .
          314(d)  . . . . . . . . . . . . . . . . .
          314(f)  . . . . . . . . . . . . . . . . .
          315(a)  . . . . . . . . . . . . . . . . .
          315(c)  . . . . . . . . . . . . . . . . .
          315(d)  . . . . . . . . . . . . . . . . .
          316(a)  . . . . . . . . . . . . . . . . .
          316(c)  . . . . . . . . . . . . . . . . .
          _______________

          *    This Cross-Reference Table does not constitute part
               of the Declaration and shall not affect the
               interpretation of any of its terms or provisions.

                                       iv
<PAGE>
 
                            AMENDED AND RESTATED
                            DECLARATION OF TRUST
                                     OF
                        BANKBOSTON CAPITAL TRUST III

                                _______, 1997

               AMENDED AND RESTATED DECLARATION OF TRUST
     ("Declaration") dated and effective as of _______, 1997, by the
     Trustees (as defined herein), the Sponsor (as defined herein) and
     by the holders, from time to time, of undivided beneficial
     interests in the Trust to be issued pursuant to this Declaration;

               WHEREAS, the Trustees and the Sponsor established
     BankBoston Capital Trust III (the "Trust"), a trust formed under
     the Delaware Business Trust Act pursuant to a Declaration of
     Trust dated as of May 14, 1997 (the "Original Declaration"), and
     a Certificate of Trust filed with the Secretary of State of the
     State of Delaware on May 14, 1997, for the sole purpose of
     issuing and selling certain securities representing undivided
     beneficial interests in the assets of the Trust and investing the
     proceeds thereof in certain Debentures of the Debenture Issuer
     (each as hereinafter defined);

               WHEREAS, as of the date hereof, no interests in the
     Trust have been issued;

               WHEREAS, all of the Trustees and the Sponsor, by this
     Declaration, amend and restate each and every term and provision
     of the Original Declaration; and 

               NOW, THEREFORE, it being the intention of the parties
     hereto to continue the Trust as a business trust under the
     Business Trust Act, that the Original Declaration be amended and
     restated in its entirety as provided herein and that this
     Declaration constitute the governing instrument of such business
     trust, the Trustees declare that all assets contributed to the
     Trust will be held in trust for the benefit of the holders, from
     time to time, of the securities representing undivided beneficial
     interests in the assets of the Trust issued hereunder, subject to
     the provisions of this Declaration.
<PAGE>
 
                                 ARTICLE I
                       INTERPRETATION AND DEFINITIONS

     SECTION 1.1    Definitions.

               Unless the context otherwise requires:

               (a)  Capitalized terms used in this Declaration but not
          defined in the preamble above have the respective meanings
          assigned to them in this Section 1.1; 

               (b)  a term defined anywhere in this Declaration has
          the same meaning throughout; 

               (c)  all references to "the Declaration" or "this
          Declaration" are to this Declaration as modified,
          supplemented or amended from time to time; 

               (d)  all references in this Declaration to Articles and
          Sections and Annexes and Exhibits are to Articles and
          Sections of and Annexes and Exhibits to this Declaration
          unless otherwise specified;

               (e)  a term defined in the Trust Indenture Act has the
          same meaning when used in this Declaration unless otherwise
          defined in this Declaration or unless the context otherwise
          requires; and

               (f)  a reference to the singular includes the plural
          and vice versa.

               "Administrative Trustee" has the meaning set forth in
     Section 5.1.

               "Affiliate" has the same meaning as given to that term
     in Rule 405 under the Securities Act or any successor rule
     thereunder.

               "Agent" means any Paying Agent or Registrar.

               "Authorized Officer" of a Person means any other Person
     that is authorized to legally bind such former Person.

               "Book Entry Interest" means a beneficial interest in a
     Global Certificate registered in the name of a Clearing Agency or
     its nominee, ownership and transfers of which shall be maintained
     and made through book entries by a Clearing Agency as described
     in Section 9.4.

               "Business Day" means any day other than a Saturday or a
     Sunday or a day on which banking institutions in the City of New

                                       2
<PAGE>
 
     York or Boston, Massachusetts are authorized or required by law
     or executive order to close.

               "Business Trust Act" means Chapter 38 of Title 12 of
     the Delaware Code, 12 Del. Code SECTION3801 et seq., as it may be
     amended from time to time, or any successor legislation.

               "Capital Security Beneficial Owner" means, with respect
     to a Book Entry Interest, a Person who is the beneficial owner of
     such Book Entry Interest, as reflected on the books of the
     Clearing Agency, or on the books of a Person maintaining an
     account with such Clearing Agency (directly as a Clearing Agency
     Participant or as an indirect participant, in each case in
     accordance with the rules of such Clearing Agency).

               "Capital Securities" has the meaning specified in
     Section 7.1(a).

               "Capital Securities Guarantee" means the guarantee
     agreement dated as of _______, 1997 of Sponsor in respect of the
     Capital Securities.

               "Clearing Agency" means an organization registered as a
     "Clearing Agency" pursuant to Section 17A of the Exchange Act
     that is acting as depositary for the Capital Securities and in
     whose name or in the name of a nominee of that organization shall
     be registered a Global Certificate and which shall undertake to
     effect book-entry transfers and pledges of the Capital
     Securities.

               "Clearing Agency Participant" means a broker, dealer,
     bank, other financial institution or other Person for whom from
     time to time the Clearing Agency effects book entry transfers and
     pledges of securities deposited with the Clearing Agency.

               "Closing Time" means the "Closing Time" under the
     Purchase Agreement.

               "Code" means the Internal Revenue Code of 1986, as
     amended from time to time, or any successor legislation.

               "Commission" means the United States Securities and
     Exchange Commission as from time to time constituted, or if any
     time after the execution of this Declaration such Commission is
     not existing and performing the duties now assigned to it under
     applicable Federal securities laws, then the body performing such
     duties at such time.

               "Common Securities" has the meaning specified in
     Section 7.1(a).

                                       3
<PAGE>
 
               "Common Securities Guarantee" means the guarantee
     agreement dated as of _______, 1997 of the Sponsor in respect of
     the Common Securities.

               "Company Indemnified Person" means (a) any
     Administrative Trustee; (b) any Affiliate of any Administrative
     Trustee; (c) any officers, directors, shareholders, members,
     partners, employees, representatives or agents of any
     Administrative Trustee; or (d) any officer, employee or agent of
     the Trust or its Affiliates.

               "Corporate Trust Office" means the office of the
     Property Trustee at which the corporate trust business of the
     Property Trustee shall, at any particular time, be principally
     administered, which office at the date of execution of this
     Agreement is located at 101 Barclay Street, 21 West, New York,
     New York 10286.

               "Covered Person" means: (a) any officer, director,
     shareholder, partner, member, representative, employee or agent
     of (i) the Trust or (ii) the Trust's Affiliates; and (b) any
     Holder of Securities.

               "Debenture Issuer" means BankBoston Corporation, a
     Massachusetts corporation, or any successor entity resulting from
     any consolidation, amalgamation, merger or other business
     combination, in its capacity as issuer of the Debentures under
     the Indenture.

               "Debenture Trustee" means The Bank of New York, a New
     York banking corporation, as trustee under the Indenture until a
     successor is appointed thereunder, and thereafter means such
     successor trustee.

               "Debentures" means the Floating Rate Junior
     Subordinated Deferrable Interest Debentures due ______, 2027 of
     the Debenture Issuer issued pursuant to the Indenture.

               "Default" means an event, act or condition that with
     notice of lapse of time, or both, would constitute an Event of
     Default.

               "Definitive Capital Securities" shall have the meaning
     set forth in Section 7.3(c).

               "Delaware Trustee" has the meaning set forth in Section
     5.2.

               "Direct Action" shall have the meaning set forth in
     Section 3.8(e).

                                       4
<PAGE>
 
               "Distribution" means a distribution payable to Holders
     of Securities in accordance with Section 6.1.

               "DTC" means The Depository Trust Company, the initial
     Clearing Agency.

               "Event of Default" in respect of the Securities means
     an Event of Default (as defined in the Indenture) that has
     occurred and is continuing in respect of the Debentures.

               "Exchange Act" means the Securities Exchange Act of
     1934, as amended from time to time, or any successor legislation.

               "Federal Reserve Board" means the Board of Governors of
     the Federal Reserve System.

               "Fiduciary Indemnified Person" has the meaning set
     forth in Section 10.4(b).

               "Global Capital Securities" has the meaning set forth
     in Section 7.3(a).

               "Holder" means a Person in whose name a Security is
     registered, such Person being a beneficial owner within the
     meaning of the Business Trust Act.

               "Indemnified Person" means a Company Indemnified Person
     or a Fiduciary Indemnified Person.

               "Indenture" means the Indenture dated as of _______,
     1997, among the Debenture Issuer and the Debenture Trustee, as
     amended from time to time.

               "Investment Company" means an investment company as
     defined in the Investment Company Act.

               "Investment Company Act"  means the Investment Company
     Act of 1940, as amended from time to time, or any successor
     legislation.

               "Legal Action" has the meaning set forth in Section
     3.6(g).

               "Majority in liquidation amount" means, with respect to
     the Trust Securities, except as provided in the terms of the
     Capital Securities or by the Trust Indenture Act, Holder(s) of
     outstanding Trust Securities voting together as a single class
     or, as the context may require, Holders of outstanding Capital
     Securities or Holders of outstanding Common Securities voting
     separately as a class, who are the record owners of more than 50%
     of the aggregate liquidation amount (including the stated amount
     that would be paid on redemption, liquidation or otherwise, plus

                                       5
<PAGE>
 
     accrued and unpaid Distributions to the date upon which the
     voting percentages are determined) of all outstanding Securities
     of the relevant class.

               "Ministerial Action" has the meaning set forth in Annex
     I hereto.

               "Officers' Certificate" means, with respect to any
     Person, a certificate signed by the Chairman, a Vice Chairman,
     the Chief Executive Officer, the President, a Vice President, the
     Comptroller, the Executive Director, Global Treasury, the Clerk
     or an Assistant Clerk, or the Secretary or an Assistant Secretary
     of such Person.  Any Officers' Certificate delivered with respect
     to compliance with a condition or covenant provided for in this
     Declaration shall include:

               (a)  a statement that each officer signing the
          Certificate has read the covenant or condition and the
          definitions relating thereto;

               (b)  a brief statement of the nature and scope of the
          examination or investigation undertaken by each officer in
          rendering the Certificate;

               (c)  a statement that each such officer has made such
          examination or investigation as, in such officer's opinion,
          is necessary to enable such officer to express an informed
          opinion as to whether or not such covenant or condition has
          been complied with; and 

               (d)  a statement as to whether, in the opinion of each
          such officer, such condition or covenant has been complied
          with.

               "Opinion of Counsel" shall mean a written opinion of
     counsel, who may be an employee of the Sponsor, and who shall be
     acceptable to the Property Trustee.

               "Paying Agent" has the meaning specified in Section
     7.4.

               "Person" means a legal person, including any
     individual, corporation, estate, partnership, joint venture,
     association, joint stock company, limited liability company,
     trust, unincorporated association, or government or any agency or
     political subdivision thereof, or any other entity of whatever
     nature.

               "Property Trustee" has the meaning set forth in Section
     5.3(a).

               "Property Trustee Account" has the meaning set forth in
     Section 3.8(c).

                                       6
<PAGE>
 
               "Purchase Agreement" means the Purchase Agreement for
     the offering and sale of Capital Securities in the form of
     Exhibit C.

               "Quorum" means a majority of the Administrative
     Trustees or, if there are only two Administrative Trustees, both
     of them.

               "Registrar" has the meaning set forth in Section 7.4.

               "Regulatory Capital Event" means that the Debenture
     Issuer shall have received an opinion of independent bank
     regulatory counsel experienced in such matters to the effect
     that, as a result of (a) any amendment to, or change (including
     any announced prospective change) in, the laws (or any
     regulations thereunder) of the United States or any rules,
     guidelines or policies of the Federal Reserve Board or (b) any
     official administrative pronouncement or judicial decision
     interpreting or applying such laws or regulations, which
     amendment or change is effective or such pronouncement or
     decision is announced on or after the date of original issuance
     of the Capital Securities, the Capital Securities do not
     constitute, or within 90 days of the date thereof, will not
     constitute, Tier I Capital (or its then equivalent); provided,
     however, that the distribution of the Capital Securities in
     connection with the liquidation of the Trust by the Sponsor,
     shall not in and of itself constitute a Regulatory Capital Event
     unless such liquidation shall have occurred in connection with a
     Tax Event.

               "Related Party" means, with respect to the Sponsor, any
     direct or indirect wholly owned subsidiary of the Sponsor or any
     other Person that owns, directly or indirectly, 100% of the
     outstanding voting securities of the Sponsor.

               "Responsible Officer" means, with respect to the
     Property Trustee, any officer within the Corporate Trust Office
     of the Property Trustee, including any vice-president, any
     assistant vice-president, any assistant secretary, any assistant
     treasurer or other officer of the Corporate Trust Office of the
     Property Trustee customarily performing functions similar to
     those performed by any of the above designated officers and also
     means, with respect to a particular corporate trust matter, any
     other officer to whom such matter is referred because of that
     officer's knowledge of and familiarity with the particular
     subject.

               "Rule 3a-5" means Rule 3a-5 under the Investment
     Company Act, or any successor rule or regulation. 

               "Securities" or "Trust Securities" means the Common
     Securities and the Capital Securities.

                                       7
<PAGE>
 
               "Securities Act" means the Securities Act of 1933, as
     amended from time to time, or any successor legislation.

               "Securities Guarantees" means the Common Securities
     Guarantee and the Capital Securities Guarantee.

               "Special Event" means either a Regulatory Capital Event
     or a Tax Event.

               "Sponsor" means BankBoston Corporation, a Massachusetts
     corporation, or any successor entity resulting from any merger,
     consolidation, amalgamation or other business combination, in its
     capacity as sponsor of the Trust.

               "Super Majority" has the meaning set forth in Section
     2.6(a)(ii).

               "Tax Event" shall mean the receipt by the Trust and the
     Debenture Issuer of an opinion of counsel experienced in such
     matters to the effect that, as a result of any amendment to, or
     change (including any announced prospective change) in, the laws
     or any regulations thereunder of the United States or any
     political subdivision or taxing authority thereof or therein or
     as a result of any official administrative pronouncement or
     judicial decision interpreting or applying such laws or
     regulations, which amendment or change is effective or which
     pronouncement or decision is announced on or after _______, 1997,
     there is more than an insubstantial risk that (i) the Trust is,
     or will be within 90 days of the date of such opinion, subject to 
     United States Federal income tax with respect to income received
     or accrued on the Debentures, (ii) interest payable by the
     Debenture Issuer on the Debentures is not, or within 90 days of
     the date of such opinion, will not be, deductible by the
     Debenture Issuer, in whole or in part, for United States Federal
     income tax purposes, or (iii) the Trust is, or will be within 90
     days of the date of such opinion, subject to more than a de
     minimis amount of other taxes, duties or other governmental
     charges.

               "10% in liquidation amount" means, with respect to the
     Trust Securities, except as provided in the terms of the Capital
     Securities or by the Trust Indenture Act, Holder(s) of
     outstanding Trust Securities voting together as a single class
     or, as the context may require, Holders of outstanding Capital
     Securities or Holders of outstanding Common Securities voting
     separately as a class, who are the record owners of 10% or more
     of the aggregate liquidation amount (including the stated amount
     that would be paid on redemption, liquidation or otherwise, plus
     accrued and unpaid Distributions to the date upon which the
     voting percentages are determined) of all outstanding Securities
     of the relevant class.

                                       8
<PAGE>
 
               "Treasury Regulations" means the income tax
     regulations, including temporary and proposed regulations,
     promulgated under the Code by the United States Treasury, as such
     regulations may be amended from time to time (including
     corresponding provisions of succeeding regulations).

               "Trustee" or "Trustees" means each Person who has
     signed this Declaration as a trustee, so long as such Person
     shall continue in office in accordance with the terms hereof, and
     all other Persons who may from time to time be duly appointed,
     qualified and serving as Trustees in accordance with the
     provisions hereof, and references herein to a Trustee or the
     Trustees shall refer to such Person or Persons solely in their
     capacity as trustees hereunder.

               "Trust Indenture Act" means the Trust Indenture Act of
     1939, as amended from time to time, or any successor legislation.

                                 ARTICLE II
                            TRUST INDENTURE ACT

     SECTION 2.1     Trust Indenture Act; Application.

               (a)   This Declaration is subject to the provisions of
     the Trust Indenture Act that are required to be part of this
     Declaration and shall, to the extent applicable, be governed by
     such provisions.

               (b)   The Property Trustee shall be the only Trustee
     which is a Trustee for the purposes of the Trust Indenture Act.

               (c)   If and to the extent that any provision of this
     Declaration limits, qualifies or conflicts with the duties
     imposed by SECTIONSECTION 310 to 317, inclusive, of the Trust
     Indenture Act, such imposed duties shall control.

               (d)   The application of the Trust Indenture Act to
     this Declaration shall not affect the nature of the Securities as
     equity securities representing undivided beneficial interests in
     the assets of the Trust.

     SECTION 2.2     Lists of Holders of Securities.

               (a)   Each of the Sponsor and the Administrative
     Trustees on behalf of the Trust shall provide the Property
     Trustee, unless the Property Trustee is Registrar for the
     Securities (i) within 14 days after November 15 and May 15 of
     each year, a list, in such form as the Property Trustee may
     reasonably require, of the names and addresses of the Holders of
     the Securities ("List of Holders") as of such record date,
     provided that neither the Sponsor nor the Administrative Trustees
     on behalf of 

                                       9
<PAGE>
 
     the Trust shall be obligated to provide such List of
     Holders at any time the List of Holders does not differ from the
     most recent List of Holders given to the Property Trustee by the
     Sponsor and the Administrative Trustees on behalf of the Trust,
     and (ii) at any other time, within 30 days of receipt by the
     Trust of a written request for a List of Holders as of a date no
     more than 14 days before such List of Holders is given to the
     Property Trustee.  The Property Trustee shall preserve, in as
     current a form as is reasonably practicable, all information
     contained in Lists of Holders given to it or which it receives in
     the capacity as Paying Agent (if acting in such capacity),
     provided that the Property Trustee may destroy any List of
     Holders previously given to it on receipt of a new List of
     Holders.  

               (b)   The Property Trustee shall comply with its
     obligations under SECTIONSECTION 311(a), 311(b) and 312(b) of the Trust
     Indenture Act.

     SECTION 2.3     Reports by the Property Trustee.

               Within 60 days after December 15 of each year,
     commencing December 15, 1997, the Property Trustee shall provide
     to the Holders of the Capital Securities such reports as are
     required by SECTION 313 of the Trust Indenture Act, if any, in the form
     and in the manner provided by SECTION 313 of the Trust Indenture Act. 
     The Property Trustee shall also comply with the requirements of SECTION
     313(d) of the Trust Indenture Act.

     SECTION 2.4     Periodic Reports to Property Trustee.

               Each of the Sponsor and the Administrative Trustees on
     behalf of the Trust shall provide to the Property Trustee such
     documents, reports and information as are required by SECTION 314 (if
     any) and the compliance certificate required by SECTION 314 of the
     Trust Indenture Act in the form, in the manner and at the times
     required by SECTION 314 of the Trust Indenture Act.

     SECTION 2.5     Evidence of Compliance with Conditions
                     Precedent.

               Each of the Sponsor and the Administrative Trustees on
     behalf of the Trust shall provide to the Property Trustee such
     evidence of compliance with any conditions precedent provided for
     in this Declaration that relate to any of the matters set forth
     in SECTION 314(c) of the Trust Indenture Act.  Any certificate or
     opinion required to be given by an officer pursuant to SECTION
     314(c)(1) of the Trust Indenture Act may be given in the form of
     an Officers' Certificate.

     SECTION 2.6     Events of Default; Waiver.

                                       10
<PAGE>
 
               (a)   The Holders of a Majority in liquidation amount
     of Capital Securities may, by vote, on behalf of the Holders of
     all of the Capital Securities, waive any past Event of Default in
     respect of the Capital Securities and its consequences, provided
     that, if the underlying Event of Default under the Indenture:

               (i)   is not waivable under the Indenture, the Event
          of Default under the Declaration shall also not be waivable;
          or

               (ii)  requires the consent or vote of greater than a
          majority in aggregate principal amount of the holders of the
          Debentures (a "Super Majority") to be waived under the
          Indenture, the Event of Default under the Declaration may
          only be waived by the vote of the Holders of at least the
          proportion in aggregate liquidation amount of the Capital
          Securities that the relevant Super Majority represents of
          the aggregate principal amount of the Debentures
          outstanding.

     The foregoing provisions of this Section 2.6(a) shall be in lieu
     of SECTION 316(a)(1)(B) of the Trust Indenture Act and such
     SECTION 316(a)(1)(B) of the Trust Indenture Act is hereby expressly
     excluded from this Declaration and the Securities, as permitted
     by the Trust Indenture Act.  Upon such waiver, any such default
     shall cease to exist, and any Event of Default with respect to
     the Capital Securities arising therefrom shall be deemed to have
     been cured, for every purpose of this Declaration, but no such
     waiver shall extend to any subsequent or other default or an
     Event of Default with respect to the Capital Securities or impair
     any right consequent thereon.  Any waiver by the Holders of the
     Capital Securities of an Event of Default with respect to the
     Capital Securities shall also be deemed to constitute a waiver by
     the Holders of the Common Securities of any such Event of Default
     with respect to the Common Securities for all purposes of this
     Declaration without any further act, vote, or consent of the
     Holders of the Common Securities.

               (b)   The Holders of a Majority in liquidation amount
     of the Common Securities may, by vote, on behalf of the Holders
     of all of the Common Securities, waive any past Event of Default
     with respect to the Common Securities and its consequences,
     provided that, if the underlying Event of Default under the
     Indenture:

               (i)   is not waivable under the Indenture, except
          where the Holders of the Common Securities are deemed to
          have waived such Event of Default under the Declaration as
          provided below in this Section 2.6(b), the Event of Default
          under the Declaration shall also not be waivable; or

                                       11
<PAGE>
 
               (ii)  requires the consent or vote of a Super Majority
          to be waived, except where the Holders of the Common
          Securities are deemed to have waived such Event of Default
          under the Declaration as provided below in this Section
          2.6(b), the Event of Default under the Declaration may only
          be waived by the vote of the Holders of at least the
          proportion in aggregate liquidation amount of the Common
          Securities that the relevant Super Majority represents of
          the aggregate principal amount of the Debentures
          outstanding;

     provided further, each Holder of Common Securities will be deemed
     to have waived any such Event of Default and all Events of
     Default with respect to the Common Securities and its
     consequences if all Events of Default with respect to the Capital
     Securities have been cured, waived or otherwise eliminated, and
     until such Events of Default have been so cured, waived or
     otherwise eliminated, the Property Trustee will be deemed to be
     acting solely on behalf of the Holders of the Capital Securities
     and only the Holders of the Capital Securities will have the
     right to direct the Property Trustee in accordance with the terms
     of the Securities.  The foregoing provisions of this Section
     2.6(b) shall be in lieu of SECTIONS 316(a)(1)(A) and 316(a)(1)(B) of
     the Trust Indenture Act and such SECTIONS 316(a)(1)(A) and 316(a)(1)(B)
     of the Trust Indenture Act are hereby expressly excluded from
     this Declaration and the Securities, as permitted by the Trust
     Indenture Act.  Subject to the foregoing provisions of this
     Section 2.6(b), upon such waiver, any such default shall cease to
     exist and any Event of Default with respect to the Common
     Securities arising therefrom shall be deemed to have been cured
     for every purpose of this Declaration, but no such waiver shall
     extend to any subsequent or other default or Event of Default
     with respect to the Common Securities or impair any right
     consequent thereon.

               (c)   A waiver of an Event of Default under the
     Indenture by the Property Trustee, at the direction of the
     Holders of the Capital Securities, constitutes a waiver of the
     corresponding Event of Default under this Declaration.  The
     foregoing provisions of this Section 2.6(c) shall be in lieu of
     SECTION 316(a)(1)(B) of the Trust Indenture Act and such
     SECTION 316(a)(1)(B) of the Trust Indenture Act is hereby expressly
     excluded from this Declaration and the Securities, as permitted by
     the Trust Indenture Act.

     SECTION 2.7     Event of Default; Notice.

               (a)   The Property Trustee shall, within 90 days after
     the occurrence of an Event of Default, transmit by mail, first
     class postage prepaid, to the Holders of the Securities, notices
     of all defaults with respect to the Securities actually known to
     a Responsible Officer of the Property Trustee, unless such
     defaults have been cured before the giving of such notice (the
     term "defaults" for the purposes of this Section 2.7(a) being
     hereby defined to be an Event of Default as defined in the Indenture

                                       12
<PAGE>
 
     not including any periods of grace provided for therein and irrespective of
     the giving of any notice provided therein); provided that, except for a
     default in the payment of principal of (or premium, if any) or interest on
     any of the Debentures, the Property Trustee shall be protected in
     withholding such notice if and so long as a Responsible Officer of the
     Property Trustee in good faith determines that the withholding of such
     notice is in the interests of the Holders of the Securities.

               (b)   The Property Trustee shall not be deemed to have
     knowledge of any default except:

               (i)   a default under Sections 5.01(a) and 5.01(b) of
          the Indenture; or

               (ii)  any default as to which the Property Trustee
          shall have received written notice or of which a Responsible
          Officer of the Property Trustee charged with the
          administration of the Declaration shall have actual
          knowledge.

               (c)   Within five Business Days after the occurrence
     of any Event of Default actually known to a Responsible Officer
     of the Property Trustee, the Property Trustee shall transmit
     notice of such Event of Default to the holders of the Capital
     Securities, the Administrative Trustees and the Sponsor, unless
     such Event of Default shall have been cured or waived.  The
     Sponsor and the Administrative Trustees shall file annually with
     the Property Trustee a certification as to whether or not they
     are in compliance with all the conditions and covenants
     applicable to them under this Declaration.

                                ARTICLE III
                                ORGANIZATION

     SECTION 3.1     Name.

               The Trust is named "BankBoston Capital Trust III" as
     such name may be modified from time to time by the Administrative
     Trustees following written notice to the Holders of Securities. 
     The Trust's activities may be conducted under the name of the
     Trust or any other name deemed advisable by the Administrative
     Trustees.

     SECTION 3.2     Office.

               The address of the principal office of the Trust is c/o
     BankBoston Corporation, P.O. Box 2016, Boston, Massachusetts
     02106-2016.  On ten Business Days written notice to the Holders
     of Securities, the Administrative Trustees may designate another
     principal office.

                                       13
<PAGE>
 
     SECTION 3.3     Purpose.

               The exclusive purposes and functions of the Trust are
     (a) to issue and sell Securities, (b) use the proceeds from the
     sale of the Securities to acquire the Debentures, and (c) except
     as otherwise limited herein, to engage in only those other
     activities necessary, advisable or incidental thereto.  The Trust
     shall not borrow money, issue debt or reinvest proceeds derived
     from investments, mortgage or pledge any of its assets, or
     otherwise undertake (or permit to be undertaken) any activity
     that would cause the Trust not to be classified for United States
     Federal income tax purposes as a grantor trust.

     SECTION 3.4     Authority.

               Subject to the limitations provided in this Declaration
     and to the specific duties of the Property Trustee, the
     Administrative Trustees shall have exclusive and complete
     authority to carry out the purposes of the Trust.  An action
     taken by the Administrative Trustees in accordance with their
     powers shall constitute the act of and serve to bind the Trust
     and an action taken by the Property Trustee on behalf of the
     Trust in accordance with its powers shall constitute the act of
     and serve to bind the Trust.  In dealing with the Trustees acting
     on behalf of the Trust, no person shall be required to inquire
     into the authority of the Trustees to bind the Trust.  Persons
     dealing with the Trust are entitled to rely conclusively on the
     power and authority of the Trustees as set forth in this
     Declaration.

     SECTION 3.5     Title to Property of the Trust.

               Except as provided in Section 3.8 with respect to the
     Debentures and the Property Trustee Account or as otherwise
     provided in this Declaration, legal title to all assets of the
     Trust shall be vested in the Trust.  The Holders shall not have
     legal title to any part of the assets of the Trust, but shall
     have an undivided beneficial interest in the assets of the Trust.

     SECTION 3.6     Powers and Duties of the Administrative
                     Trustees.

               The Administrative Trustees shall have the exclusive
     power, duty and authority to cause the Trust to engage in the
     following activities:

               (a)   to issue and sell the Capital Securities and the
     Common Securities in accordance with this Declaration; provided,
     however, that (i) the Trust may issue no more than one series of
     Capital Securities and no more than one series of Common
     Securities, (ii) there shall be no interests in the Trust other
     than the Securities, and (iii) the issuance of Securities shall be

                                       14
<PAGE>
 
     limited to a simultaneous issuance of both Capital Securities
     and Common Securities at any Closing Time,

               (b)   in connection with the issue and sale of the
     Capital Securities, at the direction of the Sponsor, to:

               (i)   execute and file with the Commission the
          registration statement on Form S-3 prepared by the Sponsor,
          including any amendments thereto, pertaining to the Capital
          Securities; 

               (ii)  execute and file any documents prepared by the
          Sponsor, or take any acts as determined by the Sponsor to be
          necessary in order to qualify or register all or part of the
          Capital Securities in any State in which the Sponsor has
          determined to qualify or register such Capital Securities
          for sale;

               (iii) at the direction of the Sponsor, execute and
          file an application, prepared by the Sponsor, to the New
          York Stock Exchange or any other national stock exchange or
          the Nasdaq Stock Market's National Market for listing or
          quotation of the Capital Securities;

               (iv)  execute and deliver letters, documents, or
          instruments with DTC and other Clearing Agencies relating to
          the Capital Securities;

               (v)   if required, execute and file with the
          Commission a registration statement on Form 8-A, including
          any amendments thereto, prepared by the Sponsor, relating to
          the registration of the Capital Securities under Section
          12(b) or 12(g) of the Exchange Act;

               (vi)  execute and enter into the Purchase Agreement
          providing for the sale of the Capital Securities; and

               (vii) execute and file any agreement, certificate or
          other document which such Administrative Trustee deems
          necessary or appropriate in connection with the issuance and
          sale of the Capital Securities;

               (c)   to acquire the Debentures with the proceeds of
     the sale of the Capital Securities and the Common Securities;
     provided, however, that the Administrative Trustees shall cause
     legal title to the Debentures to be held of record in the name of
     the Property Trustee for the benefit of the Holders of the
     Capital Securities and the Holders of Common Securities;

               (d)   to cause the Trust to enter into such agreements
     and arrangements as may be necessary or desirable in connection
     with the sale of Capital Securities to the underwriters thereof

                                       15
<PAGE>
 
     and the consummation thereof, and to take all action, and
     exercise all discretion, as may be necessary or desirable in
     connection with the consummation thereof;

               (e)   to give the Sponsor and the Property Trustee
     prompt written notice of the occurrence of a Special Event;

               (f)   to establish a record date with respect to all
     actions to be taken hereunder that require a record date be
     established, including and with respect to, for the purposes of
     SECTION316(c) of the Trust Indenture Act, Distributions, voting rights,
     redemptions and exchanges, and to issue relevant notices to the
     Holders of Capital Securities and Holders of Common Securities as
     to such actions and applicable record dates;

               (g)   to take all actions and perform such duties as
     may be required of the Administrative Trustees pursuant to the
     terms of the Securities;

               (h)   to bring or defend, pay, collect, compromise,
     arbitrate, resort to legal action, or otherwise adjust claims or
     demands of or against the Trust ("Legal Action"), unless pursuant
     to Section 3.8(e), the Property Trustee has the exclusive power
     to bring such Legal Action;

               (i)   to employ or otherwise engage employees and
     agents (who may be designated as officers with titles) and
     managers, contractors, advisors, and consultants and pay
     reasonable compensation for such services; 

               (j)   to cause the Trust to comply with the Trust's
     obligations under the Trust Indenture Act;

               (k)   to give the certificate required by SECTION 314(a)(4)
     of the Trust Indenture Act to the Property Trustee, which
     certificate may be executed by any Administrative Trustee;

               (l)   to incur expenses that are necessary or
     incidental to carry out any of the purposes of the Trust; 

               (m)   to act as, or appoint another Person to act as,
     Registrar for the Securities or to appoint a Paying Agent for the
     Securities as provided in Section 7.4 except for such time as
     such power to appoint a Paying Agent is vested in the Property
     Trustee;

               (n)   to give prompt written notice to the Property
     Trustee and to Holders of the Securities of any notice received
     from the Debenture Issuer of its election to defer payments of
     interest on the Debentures by extending the interest payment
     period under the Indenture;

                                       16
<PAGE>
 
               (o)   to execute all documents or instruments, perform
     all duties and powers, and do all things for and on behalf of the
     Trust in all matters necessary or incidental to the foregoing;

               (p)   to take all action that may be necessary or
     appropriate for the preservation and the continuation of the
     Trust's valid existence, rights, franchises and privileges as a
     statutory business trust under the laws of the State of Delaware
     and of each other jurisdiction in which such existence is
     necessary to protect the limited liability of the Holders of the
     Capital Securities or to enable the Trust to effect the purposes
     for which the Trust was created; 

               (q)   to take any action, not inconsistent with this
     Declaration or with applicable law, that the Administrative
     Trustees determine in their discretion to be necessary or
     desirable in carrying out the activities of the Trust as set out
     in this Section 3.6, including, but not limited to:

               (i)   causing the Trust not to be deemed to be an
          Investment Company required to be registered under the
          Investment Company Act;

               (ii)  causing the Trust to be classified for United
          States Federal income tax purposes as a grantor trust; and

               (iii) cooperating with the Debenture Issuer to ensure
          that the Debentures will be treated as indebtedness of the
          Debenture Issuer for United States Federal income tax
          purposes; and

               (r)   to take all action necessary to cause all
     applicable tax returns and tax information reports that are
     required to be filed with respect to the Trust to be duly
     prepared and filed by the Administrative Trustees, on behalf of
     the Trust.

               The Administrative Trustees must exercise the powers
     set forth in this Section 3.6 in a manner that is consistent with
     the purposes and functions of the Trust set out in Section 3.3,
     and the Administrative Trustees shall not take any action that is
     inconsistent with the purposes and functions of the Trust set
     forth in Section 3.3.

               Subject to this Section 3.6, the Administrative
     Trustees shall have none of the powers or the authority of the
     Property Trustee set forth in Section 3.8.

               Any expenses incurred by the Administrative Trustees
     pursuant to this Section 3.6 shall be reimbursed by the Debenture
     Issuer.

                                       17
<PAGE>
 
     SECTION 3.7     Prohibition of Actions by the Trust and the
                     Trustees.

               (a)   The Trust shall not, and the Trustees (including
     the Property Trustee) shall not, engage in any activity other
     than as required or authorized by this Declaration.  The Trust
     shall not:

               (i)   invest any proceeds received by the Trust from
          holding the Debentures, but shall distribute all such
          proceeds to Holders of Securities pursuant to the terms of
          this Declaration and of the Securities; 

               (ii)  acquire any assets other than as expressly
          provided herein;

               (iii) possess Trust property for other than a Trust
          purpose;

               (iv)  make any loans or incur any indebtedness other
          than loans represented by the Debentures;

               (v)   possess any power or otherwise act in such a way
          as to vary the Trust assets or the terms of the Securities
          in any way whatsoever;

               (vi)  issue any securities or other evidences of
          beneficial ownership of, or beneficial interest in, the
          Trust other than the Securities; or

               (vii) other than as provided in this Declaration or
          Annex I, (A) direct the time, method and place of conducting
          any proceeding with respect to any remedy available to the
          Debenture Trustee, or exercising any trust or power
          conferred upon the Debenture Trustee with respect to the
          Debentures, (B) waive any past default that is waivable
          under the Indenture, (C) exercise any right to rescind or
          annul any declaration that the principal of all the
          Debentures shall be due and payable, or (D) consent to any
          amendment, modification or termination of the Indenture or
          the Debentures where such consent shall be required unless
          the Trust shall have received an opinion of a nationally
          recognized independent tax counsel experienced in such
          matters to the effect that such modification will not cause
          more than an insubstantial risk that for United States
          Federal income tax purposes the Trust will not be classified
          as a grantor trust.

                                       18
<PAGE>
 
     SECTION 3.8     Powers and Duties of the Property Trustee.

               (a)   The legal title to the Debentures shall be owned
     by and held of record in the name of the Property Trustee in
     trust for the benefit of the Holders of the Securities.  The
     right, title and interest of the Property Trustee to the
     Debentures shall vest automatically in each Person who may
     hereafter be appointed as Property Trustee in accordance with
     Section 5.7.  Such vesting and cessation of title shall be
     effective whether or not conveyancing documents with regard to
     the Debentures have been executed and delivered.

               (b)   The Property Trustee shall not transfer its
     right, title and interest in the Debentures to the Administrative
     Trustees or to the Delaware Trustee (if the Property Trustee does
     not also act as Delaware Trustee).

               (c)   The Property Trustee shall:  

               (i)   establish and maintain a segregated non-interest
          bearing trust account (the "Property Trustee Account") in
          the name of and under the exclusive control of the Property
          Trustee on behalf of the Holders of the Securities and, upon
          the receipt of payments of funds made in respect of the
          Debentures held by the Property Trustee, deposit such funds
          into the Property Trustee Account and make payments to the
          Holders of the Capital Securities and Holders of the Common
          Securities from the Property Trustee Account in accordance
          with Section 6.1.  Funds in the Property Trustee Account
          shall be held uninvested until disbursed in accordance with
          this Declaration.  The Property Trustee Account shall be an
          account that is maintained with a banking institution the
          rating on whose long-term unsecured indebtedness is at least
          equal to the rating assigned to the Capital Securities by a
          "nationally recognized statistical rating organization", as
          that term is defined for purposes of Rule 436(g)(2) under
          the Securities Act;

               (ii)  engage in such ministerial activities as shall
          be necessary or appropriate to effect the redemption of the
          Capital Securities and the Common Securities to the extent
          the Debentures are redeemed or mature; and

               (iii) upon written notice of distribution issued by
          the Administrative Trustees in accordance with the terms of
          the Securities, engage in such ministerial activities as
          shall be necessary or appropriate to effect the distribution
          of the Debentures to Holders of Securities upon the
          occurrence of certain events.

                                       19
<PAGE>
 
               (d)   The Property Trustee shall take all actions and
     perform such duties as may be specifically required of the
     Property Trustee pursuant to the terms of the Securities.

               (e)   Subject to Section 3.9(a), the Property Trustee
     shall take any Legal Action which arises out of or in connection
     with an Event of Default of which a Responsible Officer of the
     Property Trustee has actual knowledge or the Property Trustee's
     duties and obligations under this Declaration or the Trust
     Indenture Act and if such Property Trustee shall have failed to
     take such Legal Action, the Holders of the Capital Securities may
     take such Legal Action, to the same extent as if such Holders of
     Capital Securities held an aggregate principal amount of
     Debentures equal to the aggregate liquidation amount of such
     Capital Securities, without first proceeding against the Property
     Trustee or the Trust; provided however, that if an Event of
     Default has occurred and is continuing and such event is
     attributable to the failure of the Debenture Issuer to pay the
     principal of or premium, if any, or interest on the Debentures on
     the date such principal, premium, if any, or interest is
     otherwise payable (or in the case of redemption, on the
     redemption date), then a Holder of Capital Securities may
     directly institute a proceeding for enforcement of payment to
     such Holder of the principal of or premium, if any, or interest
     on the Debentures having a principal amount equal to the
     aggregate liquidation amount of the Capital Securities of such
     Holder (a "Direct Action") on or after the respective due date
     specified in the Debentures.  In connection with such Direct
     Action, the rights of the Holders of the Common Securities will
     be subrogated to the rights of such Holder of Capital Securities
     to the extent of any payment made by the Debenture Issuer to such
     Holder of Capital Securities in such Direct Action.  Except as
     provided in the preceding sentences, the Holders of Capital
     Securities will not be able to exercise directly any other remedy
     available to the holders of the Debentures.

               (f)   The Property Trustee shall not resign as a
     Trustee unless either:

               (i)   the Trust has been completely liquidated and the
          proceeds of the liquidation distributed to the Holders of
          Securities pursuant to the terms of the Securities; or

               (ii)  a Successor Property Trustee has been appointed
          and has accepted that appointment in accordance with Section
          5.7.

               (g)   The Property Trustee shall have the legal power
     to exercise all of the rights, powers and privileges of a holder
     of Debentures under the Indenture and, if an Event of Default
     actually known to a Responsible Officer of the Property Trustee
     occurs and is continuing, the Property Trustee shall, for the

                                       20
<PAGE>
 
     benefit of Holders of the Securities, enforce its rights as
     holder of the Debentures subject to the rights of the Holders
     pursuant to the terms of such Securities. 

               (h)   The Property Trustee shall be authorized to
     undertake any actions set forth in SECTION 317(a) of the Trust
     Indenture Act.

               (i)   For such time as the Property Trustee is the
     Paying Agent, the Property Trustee may authorize one or more
     Persons to act as additional Paying Agents and to pay
     Distributions, redemption payments or liquidation payments on
     behalf of the Trust with respect to all securities and any such
     Paying Agent shall comply with SECTION 317(b) of the Trust Indenture
     Act.  Any such additional Paying Agent may be removed by the
     Property Trustee at any time the Property Trustee remains as
     Paying Agent and a successor Paying Agent or additional Paying
     Agents may be (but are not required to be) appointed at any time
     by the Property Trustee.

               (j)   Subject to this Section 3.8, the Property
     Trustee shall have none of the duties, liabilities, powers or the
     authority of the Administrative Trustees set forth in Section
     3.6.

               The Property Trustee must exercise the powers set forth
     in this Section 3.8 in a manner that is consistent with the
     purposes and functions of the Trust set out in Section 3.3, and
     the Property Trustee shall not take any action that is
     inconsistent with the purposes and functions of the Trust set out
     in Section 3.3.

     SECTION 3.9     Certain Duties and Responsibilities of the
                     Property Trustee.

               (a)   The Property Trustee, before the occurrence of
     any Event of Default and after the curing of all Trust Events of
     Default that may have occurred, shall undertake to perform only
     such duties as are specifically set forth in this Declaration and
     in the Securities and no implied covenants shall be read into
     this Declaration against the Property Trustee.  In case an Event
     of Default has occurred (that has not been cured or waived
     pursuant to Section 2.6) of which a Responsible Officer of the
     Property Trustee has actual knowledge, the Property Trustee shall
     exercise such of the rights and powers vested in it by this
     Declaration, and use the same degree of care and skill in their
     exercise, as a prudent person would exercise or use under the
     circumstances in the conduct of his or her own affairs.

               (b)   No provision of this Declaration shall be
     construed to relieve the Property Trustee from liability for its own

                                       21
<PAGE>
 
     negligent action, its own negligent failure to act, or its
     own willful misconduct, except that:

               (i)   prior to the occurrence of an Event of Default
          and after the curing or waiving of all such Events of
          Default that may have occurred:

                     (A)  the duties and obligations of the Property
               Trustee shall be determined solely by the express
               provisions of this Declaration and in the Securities
               and the Property Trustee shall not be liable except for
               the performance of such duties and obligations as are
               specifically set forth in this Declaration and in the
               Securities, and no implied covenants or obligations
               shall be read into this Declaration against the
               Property Trustee; and

                     (B)  in the absence of bad faith on the part of
               the Property Trustee, the Property 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
               Property Trustee and conforming to the requirements of
               this Declaration; provided, however, that in the case
               of any such certificates or opinions that by any
               provision hereof are specifically required to be
               furnished to the Property Trustee, the Property Trustee
               shall be under a duty to examine the same to determine
               whether or not they conform to the requirements of this
               Declaration;

               (ii)  the Property Trustee shall not be liable for any
          error of judgment made in good faith by a Responsible
          Officer of the Property Trustee, unless it shall be proved
          that the Property Trustee was negligent in ascertaining the
          pertinent facts;

               (iii) the Property 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 not less than a Majority in liquidation amount of the
          Securities relating to the time, method and place of
          conducting any proceeding for any remedy available to the
          Property Trustee, or exercising any trust or power conferred
          upon the Property Trustee under this Declaration; 

               (iv)  no provision of this Declaration shall require
          the Property Trustee to expend or risk its own funds or
          otherwise incur personal financial liability in the
          performance of any of its duties or in the exercise of any
          of its rights or powers, if it shall have reasonable grounds
          for believing that the repayment of such funds or liability
          is not reasonably assured to it under the terms of this
          Decla-

                                       22
<PAGE>
 
          ration or indemnity reasonably satisfactory to the
          Property Trustee against such risk or liability is not
          reasonably assured to it;

               (v)   the Property Trustee's sole duty with respect to
          the custody, safe keeping and physical preservation of the
          Debentures and the Property Trustee Account shall be to deal
          with such property in a similar manner as the Property
          Trustee deals with similar property for its own account,
          subject to the protections and limitations on liability
          afforded to the Property Trustee under this Declaration and
          the Trust Indenture Act;

               (vi)  the Property Trustee shall have no duty or
          liability for or with respect to the value, genuineness,
          existence or sufficiency of the Debentures or the payment of
          any taxes or assessments levied thereon or in connection
          therewith;

               (vii) the Property Trustee shall not be liable for any
          interest on any money received by it except as it may
          otherwise agree in writing with the Sponsor.  Money held by
          the Property Trustee need not be segregated from other funds
          held by it except in relation to the Property Trustee
          Account maintained by the Property Trustee pursuant to
          Section 3.8(c)(i) and except to the extent otherwise
          required by law; and

               (viii) the Property Trustee shall not be responsible
          for monitoring the compliance by the Administrative Trustees
          or the Sponsor with their respective duties under this
          Declaration, nor shall the Property Trustee be liable for
          any default or misconduct of the Administrative Trustees or
          the Sponsor.

     SECTION 3.10    Certain Rights of Property Trustee.

               (a)   Subject to the provisions of Section 3.9:

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

               (ii)  any direction or act of the Sponsor or the
          Administrative Trustees contemplated by this Declaration may
          be sufficiently evidenced by an Officers' Certificate;

                                       23
<PAGE>
 
               (iii) whenever in the administration of this
          Declaration, the Property Trustee shall deem it desirable
          that a matter be proved or established before taking,
          suffering or omitting any action hereunder, the Property
          Trustee (unless other evidence is herein specifically
          prescribed) may, in the absence of bad faith on its part,
          request and conclusively rely upon an Officers' Certificate
          which, upon receipt of such request, shall be promptly
          delivered by the Sponsor or the Administrative Trustees;

               (iv)  the Property Trustee shall have no duty to see
          to any recording, filing or registration of any instrument
          (including any financing or continuation statement or any
          filing under tax or securities laws) or any rerecording,
          refiling or registration thereof;

               (v)   the Property Trustee may consult with counsel or
          other experts of its selection and the advice or opinion of
          such counsel and experts with respect to legal matters or
          advice within the scope of such experts' area of expertise
          shall be full and complete authorization and protection in
          respect of any action taken, suffered or omitted by it
          hereunder in good faith and in accordance with such advice
          or opinion, such counsel may be counsel to the Sponsor or
          any of its Affiliates, and may include any of its employees. 
          The Property Trustee shall have the right at any time to
          seek instructions concerning the administration of this
          Declaration from any court of competent jurisdiction;

               (vi)  the Property Trustee shall be under no
          obligation to exercise any of the rights or powers vested in
          it by this Declaration at the request or direction of any
          Holder, unless such Holder shall have provided to the
          Property Trustee security and indemnity, reasonably
          satisfactory to the Property Trustee, against the costs,
          expenses (including reasonable attorneys' fees and expenses
          and the expenses of the Property Trustee's agents, nominees
          or custodians) and liabilities that might be incurred by it
          in complying with such request or direction, including such
          reasonable advances as may be requested by the Property
          Trustee provided, that, nothing contained in this Section
          3.10(a)(vi) shall be taken to relieve the Property Trustee,
          upon the occurrence of an Event of Default, of its
          obligation to exercise the rights and powers vested in it by
          this Declaration;

               (vii) the Property 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, other evidence of indebtedness or other
          paper or document, but the Property Trustee, in its
          discretion, 

                                       24
<PAGE>
 
          may make such further inquiry or investigation into such 
          facts or matters as it may see fit;

               (viii) the Property Trustee may execute any of the
          trusts or powers hereunder or perform any duties hereunder
          either directly or by or through agents, custodians,
          nominees or attorneys and the Property Trustee shall not be
          responsible for any misconduct or negligence on the part of
          any agent or attorney appointed with due care by it
          hereunder;

               (ix)  any action taken by the Property Trustee or its
          agents hereunder shall bind the Trust and the Holders of the
          Securities, and the signature of the Property Trustee or its
          agents alone shall be sufficient and effective to perform
          any such action and no third party shall be required to
          inquire as to the authority of the Property Trustee to so
          act or as to its compliance with any of the terms and
          provisions of this Declaration, both of which shall be
          conclusively evidenced by the Property Trustee's or its
          agent's taking such action;

               (x)   whenever in the administration of this
          Declaration the Property Trustee shall deem it desirable to
          receive instructions with respect to enforcing any remedy or
          right or taking any other action hereunder, the Property
          Trustee (i) may request instructions from the Holders of the
          Securities which instructions may only be given by the
          Holders of the same proportion in liquidation amount of the
          Securities as would be entitled to direct the Property
          Trustee under the terms of the Securities in respect of such
          remedy, right or action, (ii) may refrain from enforcing
          such remedy or right or taking such other action until such
          instructions are received, and (iii) shall be protected in
          conclusively relying on or acting in or accordance with such
          instructions; 

               (xi)  except as otherwise expressly provided by this
          Declaration, the Property Trustee shall not be under any
          obligation to take any action that is discretionary under
          the provisions of this Declaration; and

               (xii) the Property Trustee shall not be liable for any
          action taken, suffered, or omitted to be taken by it in good
          faith, without negligence, and reasonably believed by it to
          be authorized or within the discretion or rights or powers
          conferred upon it by this Declaration.

               (b)   No provision of this Declaration shall be deemed
     to impose any duty or obligation on the Property Trustee to
     perform any act or acts or exercise any right, power, duty or
     obligation conferred or imposed on it, in any jurisdiction in

                                       25
<PAGE>
 
     which it shall be illegal, or in which the Property Trustee shall
     be unqualified or incompetent in accordance with applicable law,
     to perform any such act or acts, or to exercise any such right,
     power, duty or obligation.  No permissive power or authority
     available to the Property Trustee shall be construed to be a
     duty.

     SECTION 3.11    Delaware Trustee.

               Notwithstanding any other provision of this Declaration
     other than Section 5.2, the Delaware Trustee shall not be
     entitled to exercise any powers, nor shall the Delaware Trustee
     have any of the duties and responsibilities of the Administrative
     Trustees or the Property Trustee described in this Declaration. 
     Except as set forth in Section 5.2, the Delaware Trustee shall be
     a Trustee for the sole and limited purpose of fulfilling the
     requirements of SECTION3807 of the Business Trust Act.

     SECTION 3.12    Execution of Documents.

               Unless otherwise determined by the Administrative
     Trustees, and except as otherwise required by the Business Trust
     Act or provided herein, any Administrative Trustee is authorized
     to execute on behalf of the Trust any documents that the
     Administrative Trustees have the power and authority to execute
     pursuant to this Declaration.

     SECTION 3.13    Not Responsible for Recitals or Issuance of
                     Securities.

               The recitals contained in this Declaration and the
     Securities shall be taken as the statements of the Sponsor, and
     the Trustees do not assume any responsibility for their
     correctness.  The Trustees make no representations as to the
     value or condition of the property of the Trust or any part
     thereof.  The Trustees make no representations as to the validity
     or sufficiency of this Declaration or the Securities.

     SECTION 3.14    Duration of Trust.

               The Trust, unless terminated pursuant to the provisions
     of Article VIII hereof, shall have existence up to _______, 2028.

     SECTION 3.15    Mergers.

               (a)   The Trust may not merge with or into,
     consolidate, amalgamate, or be replaced by, or convey, transfer
     or lease its properties and assets substantially as an entirety
     to any Person, except as described in Section 3.15(b) and (c).

               (b)   The Trust may, at the request of the Sponsor,
     with the consent of the Administrative Trustees or, if there are

                                       26
<PAGE>
 
     more than two, a majority of the Administrative Trustees and
     without the consent of the Holders of the Securities, the
     Delaware Trustee or the Property Trustee, merge with or into,
     consolidate, amalgamate, or be replaced by, or convey, transfer
     or lease its properties and assets as an entirety or
     substantially as an entirety to, a trust organized as such under
     the laws of any State; provided that:

               (i)   such successor entity (the "Successor Entity")
          either:

                     (A)  expressly assumes all of the obligations of
               the Trust under the Securities; or 

                     (B)  substitutes for the Securities other
               securities having substantially the same terms as the
               Securities (the "Successor Securities") so long as the
               Successor Securities rank the same as the Securities
               rank with respect to Distributions and payments upon
               liquidation, redemption and otherwise; 

               (ii)  the Sponsor expressly appoints a trustee of the
          Successor Entity that possesses the same powers and duties
          as the Property Trustee as the Holder of the Debentures; 

               (iii) the Successor Securities are listed, or any
          Successor Securities will be listed upon notification of
          issuance, on any national securities exchange or with
          another organization on which the Capital Securities are
          then listed or quoted;

               (iv)  such merger, consolidation, amalgamation,
          replacement, conveyance, transfer or lease does not cause
          the Capital Securities (including any Successor Securities)
          to be downgraded by any nationally recognized statistical
          rating organization;

               (v)   such merger, consolidation, amalgamation,
          replacement, conveyance, transfer or lease does not
          adversely affect the rights, preferences and privileges of
          the Holders of the Securities (including any Successor
          Securities) in any material respect (other than with respect
          to any dilution of such Holders' interests in the new
          entity);

               (vi)  such Successor Entity has a purpose identical to
          that of the Trust;

               (vii) prior to such merger, consolidation,
          amalgamation, replacement, conveyance, transfer or lease,
          the Sponsor has received an opinion of an independent
          counsel to the Trust experienced in such matters to the
          effect that:

                                       27
<PAGE>
 
                     (A)  such merger, consolidation, amalgamation,
               replacement, conveyance, transfer or lease does not
               adversely affect the rights, preferences and privileges
               of the Holders of the Securities (including any
               Successor Securities) in any material respect (other
               than with respect to any dilution of the Holders'
               interest in the new entity); and

                      (B)  following such merger, consolidation,
                amalgamation, replacement, conveyance, transfer or
                lease, neither the Trust nor the Successor Entity will
                be required to register as an Investment Company; and

                   (viii) the Sponsor or any permitted successor or
           assignee owns all of the common securities of such Successor
           Entity and guarantees the obligations of such Successor
           Entity under the Successor Securities at least to the extent
           provided by the Capital Securities Guarantee and the Common
           Securities Guarantee.

                    (c)   Notwithstanding Section 3.15(b), the Trust shall
          not, except with the consent of Holders of 100% in liquidation
          amount of the Securities, consolidate, amalgamate, merge with or
          into, or be replaced by, or convey, transfer or lease its
          properties and assets as an entirety or substantially as an
          entirety to, any other entity or permit any other entity to
          consolidate, amalgamate, merge with or into, or replace it if
          such consolidation, amalgamation, merger, replacement,
          conveyance, transfer or lease would cause the Trust or the
          Successor Entity not to be classified as a grantor trust for
          United States Federal income tax purposes.


                                      ARTICLE IV
                                       SPONSOR

          SECTION 4.1     Sponsor's Purchase of Common Securities.

                    At the Closing Time, the Sponsor will purchase all of
          the Common Securities then issued by the Trust, in an amount at
          least equal to 3% of the capital of the Trust, at the same time
          as the Capital Securities are issued and sold.

          SECTION 4.2     Responsibilities of the Sponsor.

                    In connection with the issue and sale of the Capital
          Securities, the Sponsor shall have the exclusive right and
          responsibility to engage in the following activities:

                    (a)   to prepare for filing by the Trust with the
          Commission a registration statement on Form S-3 in relation to
          the Capital Securities, including any amendments thereto;

                                       28
<PAGE>
 
                    (b)   to determine the States in which to take
          appropriate action to qualify or register for sale all or part of
          the Capital Securities and to do any and all such acts, other
          than actions which must be taken by the Trust, and advise the
          Trust of actions it must take, and prepare for execution and
          filing any documents to be executed and filed by the Trust, as
          the Sponsor deems necessary or advisable in order to comply with
          the applicable laws of any such States;

                    (c)   if deemed necessary or advisable by the Sponsor,
          to prepare for filing by the Trust an application to the New York
          Stock Exchange or any other national stock exchange or the Nasdaq
          National Market for listing or quotation of the Capital
          Securities;

                    (d)   to prepare for filing by the Trust with the
          Commission a registration statement on Form 8-A relating to the
          registration of the Capital Securities under Section 12(b) or
          12(g) of the Exchange Act, including any amendments thereto; and

                    (e)   to negotiate the terms of the Purchase Agreement
          providing for the sale of the Capital Securities.

          SECTION 4.3     Right to Proceed.

                    The Sponsor acknowledges the rights of the Holders of
          Capital Securities, in the event that a failure of the Trust to
          pay Distributions on the Capital Securities is attributable to
          the failure of the Company to pay interest or principal on the
          Debentures, to institute a proceeding directly against the
          Debenture Issuer for enforcement of its payment obligations on
          the Debentures.  

                                      ARTICLE V
                                       TRUSTEES

          SECTION 5.1     Number of Trustees: Appointment of Co-Trustee.

                    The number of Trustees initially shall be five (5),
          and:

                    (a)   at any time before the issuance of any
          Securities, the Sponsor may, by written instrument, increase or
          decrease the number of Trustees; and

                    (b)   after the issuance of any Securities, the number
          of Trustees may be increased or decreased by vote of the Holders
          of a majority in liquidation amount of the Common Securities
          voting as a class at a meeting of the Holders of the Common
          Securities; 

                                       29
<PAGE>
 
          provided, however, that, the number of Trustees shall in no event
          be less than two (2); provided further that (1) one Trustee, in
          the case of a natural person, shall be a person who is a resident
          of the State of Delaware or that, if not a natural person, is an
          entity which has its principal place of business in the State of
          Delaware (the "Delaware Trustee"); (2) there shall be at least
          one Trustee who is an employee or officer of, or is affiliated
          with the Sponsor (an "Administrative Trustee"); and (3) one
          Trustee shall be the Property Trustee for so long as this
          Declaration is required to qualify as an indenture under the
          Trust Indenture Act, and such Trustee may also serve as Delaware
          Trustee if it meets the applicable requirements.  Notwithstanding
          the above, unless an Event of Default shall have occurred and be
          continuing, at any time or times, for the purpose of meeting the
          legal requirements of the Trust Indenture Act or of any
          jurisdiction in which any part of the Trust's property may at the
          time be located, the Holders of a Majority in liquidation amount
          of the Common Securities acting as a class at a meeting of the
          Holders of the Common Securities, and the Administrative Trustees
          shall have power to appoint one or more persons either to act as
          a co-trustee, jointly with the Property Trustee, of all or any
          part of the Trust's property, or to act as separate trustee of
          any such property, in either case with such powers as may be
          provided in the instrument of appointment, and to vest in such
          person or persons in such capacity any property, title, right or
          power deemed necessary or desirable, subject to the provisions of
          this Declaration.  In case an Event of Default has occurred and
          is continuing, the Property Trustee alone shall have power to
          make any such appointment of a co-trustee.

          SECTION 5.2     Delaware Trustee.

                    If required by the Business Trust Act, one Trustee (the
          "Delaware Trustee") shall be:

                    (a)   a natural person who is a resident of the State
          of Delaware; or

                    (b)   if not a natural person, an entity which has its
          principal place of business in the State of Delaware, and
          otherwise meets the requirements of applicable law,
          provided that, if the Property Trustee has its principal place of
          business in the State of Delaware and otherwise meets the
          requirements of applicable law, then the Property Trustee shall
          also be the Delaware Trustee and Section 3.11 shall have no
          application.

          SECTION 5.3     Property Trustee; Eligibility.

                                       30
<PAGE>
 
                    (a)   There shall at all times be one Trustee (the
          "Property Trustee") which shall act as Property Trustee which
          shall:

                    (i)   not be an Affiliate of the Sponsor; and

                    (ii)  be a corporation organized and doing business
               under the laws of the United States of America or any State
               or Territory thereof or of the District of Columbia, or a
               corporation or Person permitted by the Commission to act as
               an institutional trustee under the Trust Indenture Act,
               authorized under such laws to exercise corporate trust
               powers, having a combined capital and surplus of at least 50
               million U.S. dollars ($50,000,000), and subject to
               supervision or examination by Federal, State, Territorial or
               District of Columbia authority.  If such corporation
               publishes reports of condition at least annually, pursuant
               to law or to the requirements of the supervising or
               examining authority referred to above, then for the purposes
               of this Section 5.3(a)(ii), the combined capital and surplus
               of such corporation shall be deemed to be its combined
               capital and surplus as set forth in its most recent report
               of condition so published.

                    (b)   If at any time the Property Trustee shall cease
          to be eligible to so act under Section 5.3(a), the Property
          Trustee shall immediately resign in the manner and with the
          effect set forth in Section 5.7(c). 

                    (c)   If the Property Trustee has or shall acquire any
          "conflicting interest" within the meaning of SECTION 310(b) of the
          Trust Indenture Act, the Property Trustee and the Holder of the
          Common Securities (as if it were the obligor referred to in SECTION
          310(b) of the Trust Indenture Act) shall in all respects comply
          with the provisions of SECTION 310(b) of the Trust Indenture Act.

                    (d)   The Capital Securities Guarantee shall be deemed
          to be specifically described in this Declaration for purposes of
          clause (i) of the first provision contained in Section 310(b) of
          the Trust Indenture Act.

                    (e)   The initial Property Trustee shall be:

                          The Bank of New York
                          101 Barclay Street
                          New York, New York 10286
                          Attention:    Corporate Trust Trustee
                                        Administration

                                       31
<PAGE>
 
          SECTION 5.4     Certain Qualifications of Administrative
                          Trustees and Delaware Trustee Generally.

                    Each Administrative Trustee and the Delaware Trustee
          (unless the Property Trustee also acts as Delaware Trustee) shall
          be either a natural person who is at least 21 years of age or a
          legal entity that shall act through one or more Authorized
          Officers.

          SECTION 5.5     Administrative Trustees.

                    The initial Administrative Trustees shall be:

                               Robert T. Jefferson
                               Kathleen M. McGillycuddy
                               Craig V. Starble

                    (a)   Except as expressly set forth in this
          Declaration and except if a meeting of the Administrative
          Trustees is called with respect to any matter over which the
          Administrative Trustees have power to act, any power of the
          Administrative Trustees may be exercised by, or with the consent
          of, any one such Administrative Trustee.

                    (b)   Unless otherwise determined by the
          Administrative Trustees, and except as otherwise required by the
          Business Trust Act or applicable law, any Administrative Trustee
          is authorized to execute on behalf of the Trust any documents
          which the Administrative Trustees have the power and authority to
          cause the Trust to execute pursuant to Section 3.6; and

                    (c)   An Administrative Trustee may, by power of
          attorney consistent with applicable law, delegate to any other
          natural person over the age of 21 his or her power for the
          purposes of signing any documents which the Administrative
          Trustees have power and authority to cause the Trust to execute
          pursuant to Section 3.6.

          SECTION 5.6     Delaware Trustee.

                    The initial Delaware Trustee shall be:

                    The Bank of New York (Delaware)
                    23 White Clay Center
                    Route 273
                    Newark, Delaware 19711

                                       32
<PAGE>
 
          SECTION 5.7     Appointment, Removal and Resignation of
                          Trustees.

                    (a)   Subject to Section 5.7(b), Trustees may be
          appointed or removed without cause at any time:

                    (i)   until the issuance of any Securities, by written
               instrument executed by the Sponsor;

                    (ii)  unless an Event of Default shall have occurred
               and be continuing after the issuance of any Securities, by
               vote of the Holders of a Majority in liquidation amount of
               the Common Securities voting as a class at a meeting of the
               Holders of the Common Securities; and

                    (iii) if an Event of Default shall have occurred and
               be continuing after the issuance of the Securities, with
               respect to the Property Trustee or the Delaware Trustee, by
               vote of Holders of a Majority in liquidation amount of the
               Capital Securities voting as a class at a meeting of Holders
               of the Capital Securities.

                    (b)  (i)  The Trustee that acts as Property Trustee
          shall not be removed in accordance with Section 5.7(a) until a
          Successor Property Trustee has been appointed and has accepted
          such appointment by written instrument executed by such Successor
          Property Trustee and delivered to the Administrative Trustees and
          the Sponsor; and

                    (ii)  the Trustee that acts as Delaware Trustee shall
               not be removed in accordance with this Section 5.7(a) until
               a successor Trustee possessing the qualifications to act as
               Delaware Trustee under Sections 5.2 and 5.4 (a "Successor


               Delaware Trustee") has been appointed and has accepted such
               appointment by written instrument executed by such Successor
               Delaware Trustee and delivered to the Administrative
               Trustees and the Sponsor.

                    (c)   A Trustee appointed to office shall hold office
          until his successor shall have been appointed or until his death,
          removal or resignation.  Any Trustee may resign from office
          (without need for prior or subsequent accounting) by an
          instrument in writing signed by the Trustee and delivered to the
          Sponsor and the Trust, which resignation shall take effect upon
          such delivery or upon such later date as is specified therein;
          provided, however, that:

                    (i)   No such resignation of the Trustee that acts as
               the Property Trustee shall be effective:

                          (A)  until a Successor Property Trustee has been
                    appointed and has accepted such appointment by instru-

                                       33
<PAGE>
 
                    ument executed by such Successor Property Trustee
                    and delivered to the Trust, the Sponsor and the
                    resigning Property Trustee; or

                          (B)  until the assets of the Trust have been
                    completely liquidated and the proceeds thereof
                    distributed to the holders of the Securities; and

                    (ii)  no such resignation of the Trustee that acts as
               the Delaware Trustee shall be effective until a Successor
               Delaware Trustee has been appointed and has accepted such
               appointment by instrument executed by such Successor
               Delaware Trustee and delivered to the Trust, the Sponsor and
               the resigning Delaware Trustee.

                    (d)   The Holders of the Common Securities shall use
          their best efforts to promptly appoint a Successor Delaware
          Trustee or Successor Property Trustee, as the case may be, if the
          Property Trustee or the Delaware Trustee delivers an instrument
          of resignation in accordance with this Section 5.7.

                    (e)   If no Successor Property Trustee or Successor
          Delaware Trustee shall have been appointed and accepted
          appointment as provided in this Section 5.7 within 60 days after
          delivery of an instrument of resignation or removal, the Property
          Trustee or Delaware Trustee resigning or being removed, as
          applicable, may petition any court of competent jurisdiction for
          appointment of a Successor Property Trustee or Successor Delaware
          Trustee.  Such court may thereupon, after prescribing such
          notice, if any, as it may deem proper and prescribe, appoint a
          Successor Property Trustee or Successor Delaware Trustee, as the
          case may be.

                    (f)   No Property Trustee or Delaware Trustee shall be
          liable for the acts or omissions to act of any Successor Property
          Trustee or Successor Delaware Trustee, as the case may be.

          SECTION 5.8     Vacancies among Trustees.

                    If a Trustee ceases to hold office for any reason and
          the number of Trustees is not reduced pursuant to Section 5.1, or
          if the number of Trustees is increased pursuant to Section 5.1, a
          vacancy shall occur.  A resolution certifying the existence of
          such vacancy by the Administrative Trustees or, if there are more
          than two, a majority of the Administrative Trustees shall be
          conclusive evidence of the existence of such vacancy.  The
          vacancy shall be filled with a Trustee appointed in accordance
          with Section 5.7.

          SECTION 5.9     Effect of Vacancies.

                                       34
<PAGE>
 
                    The death, resignation, retirement, removal,
          bankruptcy, dissolution, liquidation, incompetence or incapacity
          to perform the duties of a Trustee shall not operate to annul the
          Trust.  Whenever a vacancy in the number of Administrative
          Trustees shall occur, until such vacancy is filled by the
          appointment of an Administrative Trustee in accordance with
          Section 5.7, the Administrative Trustees in office, regardless of
          their number, shall have all the powers granted to the
          Administrative Trustees and shall discharge all the duties
          imposed upon the Administrative Trustees by this Declaration.

          SECTION 5.10    Meetings.

                    If there is more than one Administrative Trustee,
          meetings of the Administrative Trustees shall be held from time
          to time upon the call of any Administrative Trustee.  Regular
          meetings of the Administrative Trustees may be held at a time and
          place fixed by resolution of the Administrative Trustees.  Notice
          of any in-person meetings of the Administrative Trustees shall be
          hand delivered or otherwise delivered in writing (including by
          facsimile, with a hard copy by overnight courier) not less than
          24 hours before such meeting.  Notice of any telephonic meetings
          of the Administrative Trustees or any committee thereof shall be
          hand delivered or otherwise delivered in writing (including by
          facsimile, with a hard copy by overnight courier) not less than
          24 hours before a meeting.  Notices shall contain a brief
          statement of the time, place and anticipated purposes of the
          meeting.  The presence (whether in person or by telephone) of an
          Administrative Trustee at a meeting shall constitute a waiver of
          notice of such meeting except where an Administrative Trustee
          attends a meeting for the express purpose of objecting to the
          transaction of any activity on the ground that the meeting has
          not been lawfully called or convened.  Unless provided otherwise
          in this Declaration, any action of the Administrative Trustees
          may be taken at a meeting by vote of a majority of the
          Administrative Trustees present (whether in person or by
          telephone) and eligible to vote with respect to such matter,
          provided that a Quorum is present, or without a meeting by the
          unanimous written consent of the Administrative Trustees.  In the
          event there is only one Administrative Trustee, any and all
          action of such Administrative Trustee shall be evidenced by a
          written consent of such Administrative Trustee.

          SECTION 5.11    Delegation of Power.

                    (a)   Any Administrative Trustee may, by power of
          attorney consistent with applicable law, delegate to any other
          natural person over the age of 21 his or her power for the
          purpose of executing any documents contemplated in Section 3.6,
          including any registration statement or amendment thereto filed
          with the Commission, or making any other governmental filing; and

                                       35
<PAGE>
 
                    (b)   the Administrative Trustees shall have power to
          delegate from time to time to such of their number or to officers
          of the Trust the doing of such things and the execution of such
          instruments either in the name of the Trust or the names of the
          Administrative Trustees or otherwise as the Administrative
          Trustees may deem expedient, to the extent such delegation is not
          prohibited by applicable law or contrary to the provisions of the
          Trust, as set forth herein.

          Section 5.12    Merger, Conversion, Consolidation or Succession
                          to Business.

               Any corporation into which the Property Trustee or the
          Delaware Trustee or any Administrative Trustee that is not a
          natural person, as the case may be, 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
          Property Trustee or the Delaware Trustee, as the case may be,
          shall be a party, or any corporation succeeding to all or
          substantially all the corporate trust business of the Property
          Trustee or the Delaware Trustee, as the case may be, shall be the
          successor of the Property Trustee or the Delaware Trustee, as the
          case may be, hereunder, provided such corporation shall be
          otherwise qualified and eligible under this Article, without the
          execution or filing of any paper or any further act on the part
          of any of the parties hereto.

                                      ARTICLE VI
                                    DISTRIBUTIONS

          SECTION 6.1     Distributions.

                    Holders shall receive Distributions in accordance with
          the applicable terms of the relevant Holder's Securities.  If and
          to the extent that the Debenture Issuer makes a payment of
          interest (including Compounded Interest (as defined in the
          Indenture) and Additional Interest (as defined in the
          Indenture)), premium and/or principal on the Debentures held by
          the Property Trustee (the amount of any such payment being a
          "Payment Amount"), the Property Trustee shall and is directed, to
          the extent funds are available for that purpose, to make a
          distribution (a "Distribution") of the Payment Amount to Holders.

                                       36
<PAGE>
 
                                     ARTICLE VII
                                ISSUANCE OF SECURITIES

          SECTION 7.1     General Provisions Regarding Securities.

                    (a)   The Administrative Trustees shall on behalf of
          the Trust issue one class of capital securities representing
          undivided beneficial interests in the assets of the Trust having
          such terms as are set forth in Annex I (the "Capital Securities")
          and one class of common securities representing undivided
          beneficial interests in the assets of the Trust having such terms
          as are set forth in Annex I (the "Common Securities").  The Trust
          shall issue no securities or other interests in the assets of the
          Trust other than the Capital Securities and the Common
          Securities.

                    (b)   The consideration received by the Trust for the
          issuance of the Securities shall constitute a contribution to the
          capital of the Trust and shall not constitute a loan to the
          Trust. 

                    (c)   Upon issuance of the Securities as provided in
          this Declaration, the Securities so issued shall be deemed to be
          validly issued, fully paid and non-assessable.

                    (d)   Every Person, by virtue of having become a
          Holder or a Capital Security Beneficial Owner in accordance with
          the terms of this Declaration, shall be deemed to have expressly
          assented and agreed to the terms of, and shall be bound by, this
          Declaration.

          SECTION 7.2     Execution and Authentication.

                    (a)   The Securities shall be signed on behalf of the
          Trust by an Administrative Trustee.  In case any Administrative
          Trustee of the Trust who shall have signed any of the Securities
          shall cease to be such Administrative Trustee before the
          Securities so signed shall be delivered by the Trust, such
          Securities nevertheless may be delivered as though the person who
          signed such Securities had not ceased to be such Administrative
          Trustee; and any Securities may be signed on behalf of the Trust
          by such persons who, at the actual date of execution of such
          Security, shall be the Administrative Trustees of the Trust,
          although at the date of the execution and delivery of the
          Declaration any such person was not such a Administrative
          Trustee.

                    (b)   One Administrative Trustee shall sign the
          Capital Securities for the Trust by manual or facsimile
          signature.  Unless otherwise determined by the Trust, such
          signature shall, in the case of Common Securities, be a manual
          signature.

                                       37
<PAGE>
 
                    A Capital Security shall not be valid until
          authenticated by the manual signature of an authorized signatory
          of the Property Trustee.  The signature shall be conclusive
          evidence that the Capital Security has been authenticated under
          this Declaration.

                    Upon a written order of the Trust signed by one
          Administrative Trustee, the Property Trustee shall authenticate
          the Capital Securities for original issue.  The aggregate number
          of Capital Securities outstanding at any time shall not exceed
          the number set forth in the Terms in Annex I hereto except as
          provided in Section 7.6.

                    The Property Trustee may appoint an authenticating
          agent acceptable to the Trust to authenticate Capital Securities. 
          An authenticating agent may authenticate Capital Securities
          whenever the Property Trustee may do so.  Each reference in this
          Declaration to authentication by the Property Trustee includes
          authentication by such agent.  An authenticating agent has the
          same rights as the Property Trustee to deal with the Sponsor or
          an Affiliate.

          SECTION 7.3     Form and Dating.

                    The Capital Securities and the Property Trustee's
          certificate of authentication shall be substantially in the form
          of Exhibit A-1 and the Common Securities shall be substantially
          in the form of Exhibit A-2, each of which is hereby incorporated
          in and expressly made a part of this Declaration.  Certificates
          representing the Securities may be printed, lithographed or
          engraved or may be produced in any other manner as is reasonably
          acceptable to the Administrative Trustees, as evidenced by their
          execution thereof.  The Securities may have letters, CUSIP or
          other numbers, notations or other marks of identification or
          designation and such legends or endorsements required by law,
          stock exchange rule, agreements to which the Trust is subject, if
          any, or usage (provided that any such notation, legend or
          endorsement is in a form acceptable to the Trust).  The Trust at
          the direction of the Sponsor shall furnish any such legend not
          contained in Exhibit A-1 to the Property Trustee in writing. 
          Each Capital Security shall be dated the date of its
          authentication.  The terms and provisions of the Securities set
          forth in Annex I and the forms of Securities set forth in
          Exhibits A-1 and A-2 are part of the terms of this Declaration
          and to the extent applicable, the Property Trustee and the
          Sponsor, by their execution and delivery of this Declaration,
          expressly agree to such terms and provisions and to be bound
          thereby.

                    (a)   Global Securities.  The Capital Securities shall
          be issued in the form of one or more permanent global Securities
          in definitive, fully registered form without Distribution coupons
          with the appropriate global legends set forth in Exhibit A-1

                                       38
<PAGE>
 
          hereto (a "Global Capital Security"), which shall be deposited on
          behalf of the purchasers of the Capital Securities represented
          thereby with the Property Trustee, at its New York office, as
          custodian for the Clearing Agency, and registered in the name of
          the Clearing Agency or a nominee of the Clearing Agency, duly
          executed by the Trust and authenticated by the Property Trustee
          as hereinafter provided.  The number of Capital Securities
          represented by the Global Capital Security may from time to time
          be increased or decreased by adjustments made on the records of
          the Property Trustee and the Clearing Agency or its nominee as
          hereinafter provided.

                    (b)   Book-Entry Provisions.  This Section 7.3(b)
          shall apply only to the Global Capital Securities and such other
          Capital Securities in global form as may be authorized by the
          Trust to be deposited with or on behalf of the Clearing Agency.

                    The Trust shall execute and the Property Trustee shall,
          in accordance with this Section 7.3, authenticate and make
          available for delivery initially one or more Global Capital
          Securities that (i) shall be registered in the name of Cede & Co.
          or other nominee of such Clearing Agency and (ii) shall be
          delivered by the Trustee to such Clearing Agency or pursuant to
          such Clearing Agency's written instructions or held by the
          Property Trustee as custodian for the Clearing Agency.

                    Members of, or participants in, the Clearing Agency
          ("Participants") shall have no rights under this Declaration with
          respect to any Global Capital Security held on their behalf by
          the Clearing Agency or by the Property Trustee as the custodian
          of the Clearing Agency or under such Global Capital Security, and
          the Clearing Agency may be treated by the Trust, the Property
          Trustee and any agent of the Trust or the Property Trustee as the
          absolute owner of such Global Capital Security for all purposes
          whatsoever.  Notwithstanding the foregoing, nothing herein shall
          prevent the Trust, the Property Trustee or any agent of the Trust
          or the Property Trustee from giving effect to any written
          certification, proxy or other authorization furnished by the
          Clearing Agency or impair, as between the Clearing Agency and its
          Participants, the operation of customary practices of such
          Clearing Agency governing the exercise of the rights of a holder
          of a beneficial interest in any Global Capital Security.

                    (c)   Definitive Capital Securities.  Except as
          provided in Section 7.9, owners of beneficial interests in a
          Global Capital Security will not be entitled to receive physical
          delivery of certificated Capital Securities ("Definitive Capital
          Securities").

                                       39
<PAGE>
 
          SECTION 7.4     Registrar and Paying Agent.

                    The Trust shall maintain in the Borough of Manhattan,
          The City of New York, (i) an office or agency where Capital
          Securities may be presented for registration of transfer
          ("Registrar") and (ii) an office or agency where Capital
          Securities may be presented for payment ("Paying Agent").  The
          Registrar shall keep a register of the Capital Securities and of
          their transfer.  The Trust may appoint the Registrar and the
          Paying Agent and may appoint one or more co-registrars and one or
          more additional paying agents in such other locations as it shall
          determine.  The term "Registrar" includes any additional
          registrar and the term "Paying Agent" includes any additional
          paying agent.  The Trust may change any Paying Agent, Registrar
          or co-registrar without prior notice to any Holder.  The Paying
          Agent shall be permitted to resign as Paying Agent upon 30 days'
          written notice to the Administrative Trustees.  The Trust shall
          notify the Property Trustee of the name and address of any Agent
          not a party to this Declaration.  If the Trust fails to appoint
          or maintain another entity as Registrar or Paying Agent, the
          Property Trustee shall act as such.  The Trust or any of its
          Affiliates may act as Paying Agent or Registrar.  The Trust shall
          act as Paying Agent, Registrar and co-registrar for the Common
          Securities.

                    The Trust initially appoints the Property Trustee as
          Registrar and Paying Agent for the Capital Securities.

          SECTION 7.5     Paying Agent to Hold Money in Trust.

                    The Trust shall require each Paying Agent other than
          the Property Trustee to agree in writing that the Paying Agent
          will hold in trust for the benefit of Holders or the Property
          Trustee all money held by the Paying Agent for the payment of
          liquidation amounts or Distributions on the Securities, and will
          notify the Property Trustee if there are insufficient funds for
          such purpose.  While any such insufficiency continues, the
          Property Trustee may require a Paying Agent to pay all money held
          by it to the Property Trustee.  The Trust at any time may require
          a Paying Agent to pay all money held by it to the Property
          Trustee and to account for any money disbursed by it.  Upon
          payment over to the Property Trustee, the Paying Agent (if other
          than the Trust or an Affiliate of the Trust) shall have no
          further liability for the money.  If the Trust or the Sponsor or
          an Affiliate of the Trust or the Sponsor acts as Paying Agent, it
          shall segregate and hold in a separate trust fund for the benefit
          of the Holders all money held by it as Paying Agent.

          SECTION 7.6     Replacement Securities.

                    If the holder of a Security claims that the Security
          has been lost, destroyed or wrongfully taken or if such Security
          is mutilated and is surrendered to the Trust or in the case of

                                       40
<PAGE>
 
          the Capital Securities to the Property Trustee, the Trust shall
          issue and the Property Trustee shall authenticate a replacement
          Security if the Property Trustee's and the Trust's requirements,
          as the case may be, are met.  An indemnity bond must be provided
          by the Holder which, in the judgment of the Property Trustee, is
          sufficient to protect the Trustees, the Sponsor or any
          authenticating agent from any loss which any of them may suffer
          if a Security is replaced.  The Trust may charge such holder for
          its expenses in replacing a Security.

                    Every replacement Security is an additional beneficial
          interest in the Trust.

          SECTION 7.7     Outstanding Capital Securities.

                    The Capital Securities outstanding at any time are all
          the Capital Securities authenticated by the Property Trustee
          except for those cancelled by it, those delivered to it for
          cancellation, and those described in this Section as not
          outstanding.

                    If a Capital Security is replaced, paid or purchased
          pursuant to Section 7.6 hereof, it ceases to be outstanding
          unless the Property Trustee receives proof satisfactory to it
          that the replaced, paid or purchased Capital Security is held by
          a bona fide purchaser.

                    If Capital Securities are considered paid in accordance
          with the terms of this Declaration, they cease to be outstanding
          and Distributions on them shall cease to accumulate.

                    A Capital Security does not cease to be outstanding
          because one of the Trust, the Sponsor or an Affiliate of the
          Sponsor holds the Security.

          SECTION 7.8     Capital Securities in Treasury.

                    In determining whether the Holders of the required
          amount of Securities have concurred in any direction, waiver or
          consent, Capital Securities owned by the Trust, the Sponsor or an
          Affiliate of the Sponsor, as the case may be, shall be
          disregarded and deemed not to be outstanding, except that for the
          purposes of determining whether the Property Trustee shall be
          fully protected in relying on any such direction, waiver or
          consent, only Securities which a Responsible Officer of the
          Property Trustee actually knows are so owned shall be so
          disregarded.

          SECTION 7.9     Temporary Securities.

                    (a)   Until Definitive Securities are ready for
          delivery, the Trust may prepare and, in the case of the Capital

                                       41
<PAGE>
 
          Securities, the Property Trustee shall authenticate temporary
          Securities.  Temporary Securities shall be substantially in the
          form of Definitive Securities but may have variations that the
          Trust considers appropriate for temporary Securities.  Without
          unreasonable delay, the Trust shall prepare and, in the case of
          the Capital Securities, the Property Trustee shall authenticate
          Definitive Securities in exchange for temporary Securities.

                    (b)   A Global Capital Security deposited with the
          Clearing Agency or with the Property Trustee as custodian for the
          Clearing Agency pursuant to Section 7.3 shall be transferred to
          the beneficial owners thereof in the form of certificated Capital
          Securities only if such transfer complies with Section 9.2 and
          (i) the Clearing Agency notifies the Company that it is unwilling
          or unable to continue as Clearing Agency for such Global Capital
          Security or if at any time such Clearing Agency ceases to be a
          "clearing agency" registered under the Exchange Act and a
          clearing agency is not appointed by the Sponsor within 90 days of
          such notice, (ii) a Default or an Event of Default has occurred
          and is continuing or (iii) the Trust at its sole discretion
          elects to cause the issuance of certificated Capital Securities.

                    (c)   Any Global Capital Security that is transferable
          to the beneficial owners thereof in the form of certificated
          Capital Securities pursuant to this Section 7.9 shall be
          surrendered by the Clearing Agency to the Property Trustee
          located in the Borough of Manhattan, The City of New York, to be
          so transferred, in whole or from time to time in part, without
          charge, and the Property Trustee shall authenticate and make
          available for delivery, upon such transfer of each portion of
          such Global Capital Security, an equal aggregate liquidation
          amount of Securities of authorized denominations in the form of
          certificated Capital Securities.  Any portion of a Global Capital
          Security transferred pursuant to this Section shall be registered
          in such names as the Clearing Agency shall direct.

                    (d)   Subject to the provisions of Section 7.9(c), the
          Holder of a Global Capital Security may grant proxies and
          otherwise authorize any person, including Participants and
          persons that may hold interests through Participants, to take any
          action which such Holder is entitled to take under this
          Declaration or the Securities.

                    (e)   In the event of the occurrence of any of the
          events specified in Section 7.9(b), the Trust will promptly make
          available to the Property Trustee a reasonable supply of
          certificated Capital Securities in fully registered form without
          distribution coupons.

                                       42
<PAGE>
 
          SECTION 7.10    Cancellation.

                    The Trust at any time may deliver Capital Securities to
          the Property Trustee for cancellation.  The Registrar and Paying
          Agent shall forward to the Property Trustee any Capital
          Securities surrendered to them for registration of transfer,
          redemption, exchange or payment.  The Property Trustee shall
          promptly cancel all Capital Securities, surrendered for
          registration of transfer, redemption, exchange, payment,
          replacement or cancellation and shall dispose of cancelled
          Capital Securities as the Trust directs, provided that the
          Property Trustee shall not be obligated to destroy Capital
          Securities.  The Trust may not issue new Capital Securities to
          replace Capital Securities that it has paid or that have been
          delivered to the Property Trustee for cancellation.

          SECTION 7.11    CUSIP Numbers.

                    The Trust in issuing the Capital Securities may use
          "CUSIP" numbers (if then generally in use), and, if so, the
          Property Trustee shall use "CUSIP" numbers in notices of
          redemption as a convenience to Holders of Capital Securities;
          provided that any such notice may state that no representation is
          made as to the correctness of such numbers either as printed on
          the Capital Securities or as contained in any notice of a
          redemption and that reliance may be placed only on the other
          identification numbers printed on the Capital Securities, and any
          such redemption shall not be affected by any defect in or
          omission of such numbers.  The Sponsor will promptly notify the
          Property Trustee of any change in the CUSIP numbers.

                                     ARTICLE VIII
                                 TERMINATION OF TRUST

          SECTION 8.1     Termination of Trust.

                    (a)   The Trust shall automatically terminate:

                    (i)   upon the bankruptcy of the Sponsor;

                    (ii)  upon the filing of a certificate of dissolution
               or liquidation or its equivalent with respect to the
               Sponsor; or the revocation of the Sponsor's charter and the
               expiration of 90 days after the date of revocation without a
               reinstatement thereof;

                    (iii) following the distribution of a Like Amount of
               the Debentures to the Holders of the Securities, provided
               that, the Property Trustee has received written notice from
               the Sponsor directing the Property Trustee to terminate the
               Trust (which direction is optional, and except as otherwise

                                       43
<PAGE>
 
               expressly provided below, within the discretion of the
               Sponsor) and provided, further, that such direction and such
               distribution is conditioned on (i) the prior approval of the
               Federal Reserve Board if such approval is then required
               under applicable capital guidelines or policies of the
               Federal Reserve Board, (ii) the Administrative Trustees'
               receipt of an opinion of an independent tax counsel
               experienced in such matters (a "No Recognition Opinion"),
               which opinion may rely on published rulings of the Internal
               Revenue Service, to the effect that the Holders of the
               Securities will not recognize any gain or loss for United
               States Federal income tax purposes as a result of the
               dissolution of the Trust and the distribution of Debentures;

                    (iv)  upon the entry of a decree of judicial
               dissolution of the Trust by a court of competent
               jurisdiction;

                    (v)   when all of the Securities shall have been
               called for redemption and the amounts necessary for
               redemption thereof shall have been paid to the Holders in
               accordance with the terms of the Securities;

                    (vi)  upon the repayment of the Debentures or at such
               time as no Debentures are outstanding; or

                    (vii) the expiration of the term of the Trust provided
               in Section 3.14.

                    (b)   As soon as is practicable after the occurrence
          of an event referred to in Section 8.1(a), the Administrative
          Trustees shall file a certificate of cancellation with the
          Secretary of State of the State of Delaware.

                    (c)   The provisions of Section 3.9 and Article X
          shall survive the termination of the Trust.


                                      ARTICLE IX
                                TRANSFER OF INTERESTS

          SECTION 9.1     Transfer of Securities.

                    (a)   Securities may only be transferred, in whole or
          in part, in accordance with the terms and conditions set forth in
          this Declaration and in the terms of the Securities.  Any
          transfer or purported transfer of any Security not made in
          accordance with this Declaration shall be null and void.

                    (b)   Subject to this Article IX, Capital Securities
          shall be freely transferable.

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<PAGE>
 
                    (c)   The Sponsor may not transfer the Common
          Securities. 

                    (d)   The Administrative Trustees shall provide for
          the registration of Securities and of the transfer of Securities,
          which will be effected without charge but only upon payment (with
          such indemnity as the Administrative Trustees may require) in
          respect of any tax or other governmental charges that may be
          imposed in relation to it.  Upon surrender for registration of
          transfer of any Securities, the Administrative Trustees shall
          cause one or more new Securities to be issued in the name of the
          designated transferee or transferees.  Every Security surrendered
          for registration of transfer shall be accompanied by a written
          instrument of transfer in form satisfactory to the Administrative
          Trustees duly executed by the Holder or such Holder's attorney
          duly authorized in writing.  Each Security surrendered for
          registration of transfer shall be canceled by the Administrative
          Trustees.  A transferee of a Security shall be entitled to the
          rights and subject to the obligations of a Holder hereunder upon
          the receipt by such transferee of a Security.  By acceptance of a
          Security, each transferee shall be deemed to have agreed to be
          bound by this Declaration.

          SECTION 9.2     Transfer Procedures and Restrictions

                    (a)   Transfer and Exchange of Definitive Capital
          Securities.  When Definitive Capital Securities are presented to
          the Registrar or co-Registrar

                    (x)  to register the transfer of such Definitive
               Capital Securities; or

                    (y)  to exchange such Definitive Capital Securities
               which became mutilated, destroyed, defaced, stolen or lost,
               for an equal number of Definitive Capital Securities,

          the Registrar or co-registrar shall register the transfer or make
          the exchange as requested if its reasonable requirements for such
          transaction are met; provided, however, that the Definitive
          Capital Securities surrendered for transfer or exchange shall be
          duly endorsed or accompanied by a written instrument of transfer
          in form reasonably satisfactory to the Trust and the Registrar or
          co-registrar, duly executed by the Holder thereof or his attorney
          duly authorized in writing.

                    (b)   Transfer of a Definitive Capital Security for a
          Beneficial Interest in a Global Capital Security.  Upon receipt
          by the Property Trustee of a Definitive Capital Security, duly
          endorsed or accompanied by appropriate instruments of transfer,
          in form satisfactory to the Property Trustee, together with
          written instructions directing the Property Trustee to make, or
          to direct the Clearing Agency to make, an adjustment on its books

                                       45
<PAGE>
 
          and records with respect to the Global Capital Security to
          reflect an increase in the number of the Capital Securities
          represented by such Global Capital Security, then the Property
          Trustee shall cancel such Definitive Capital Security and cause,
          or direct the Clearing Agency to cause, the aggregate number of
          Capital Securities represented by the appropriate Global Capital
          Security to be increased accordingly.  If no Global Capital
          Securities are then outstanding, the Trust shall issue and the
          Property Trustee shall authenticate, upon written order of any
          Administrative Trustee, an appropriate number of Capital
          Securities in global form.

                    (c)   Transfer and Exchange of Global Capital
          Securities.  Subject to Section 9.02(d), the transfer and
          exchange of Global Capital Securities or beneficial interests
          therein shall be effected through the Clearing Agency, in
          accordance with this Declaration (including applicable
          restrictions on transfer set forth herein, if any) and the
          procedures of the Clearing Agency therefor.

                    (d)   Transfer of a Beneficial Interest in a Global
          Capital Security for a Definitive Capital Security.

                    (i)   Any person having a beneficial interest in a
               Global Capital Security may upon request, but only upon 20
               days prior notice to the Property Trustee, and if
               accompanied by the information specified below, exchange
               such beneficial interest for a Definitive Capital Security
               representing the same number of Capital Securities.  Upon
               receipt by the Property Trustee from the Clearing Agency or
               its nominee on behalf of any Person having a beneficial
               interest in a Global Capital Security of written
               instructions or such other form of instructions as is
               customary for the Clearing Agency or the person designated
               by the Clearing Agency as having such a beneficial interest
               in a Global Capital Security, then the Property Trustee will
               cause the aggregate number of Capital Securities represented
               by Global Capital Securities to be reduced on its books and
               records and, following such reduction, the Trust will
               execute and the Property Trustee will authenticate and make
               available for delivery to the transferee a Definitive
               Capital Security.

                    (ii)  Definitive Capital Securities issued in exchange
               for a beneficial interest in a Global Capital Security
               pursuant to this Section 9.2(d) shall be registered in such
               names and in such authorized denominations as the Clearing
               Agency, pursuant to instructions from its Participants or
               indirect participants or otherwise, shall instruct the
               Property Trustee in writing.  The Property Trustee shall
               deliver such Capital Securities to the persons in whose
               names such Capital Securities are so registered in
               accordance with such instructions of the Clearing Agency.

                                       46
<PAGE>
 
                    (e)   Restrictions on Transfer and Exchange of Global
          Capital Securities.  Notwithstanding any other provisions of this
          Declaration (other than the provisions set forth in subsection
          (f) of this Section 9.2), a Global Capital Security may not be
          transferred as a whole except by the Clearing Agency to a nominee
          of the Clearing Agency or another nominee of the Clearing Agency
          or by the Clearing Agency or any such nominee to a successor
          Clearing Agency or a nominee of such successor Clearing Agency.

                    (f)   Authentication of Definitive Capital Securities. 
          If at any time:

                    (i)   there occurs a Default or an Event of Default
               which is continuing, or

                    (ii)  the Trust, in its sole discretion, notifies the
               Property Trustee in writing that it elects to cause the
               issuance of Definitive Capital Securities under this
               Declaration,

          then the Trust will execute, and the Property Trustee, upon
          receipt of a written order of the Trust signed by one
          Administrative Trustee requesting the authentication and delivery
          of Definitive Capital Securities to the Persons designated by the
          Trust, will authenticate and make available for delivery
          Definitive Capital Securities, equal in number to the number of
          Capital Securities represented by the Global Capital Securities,
          in exchange for such Global Capital Securities.

                    (g)   Cancellation or Adjustment of Global Capital
          Security.  At such time as all beneficial interests in a Global
          Capital Security have either been exchanged for Definitive
          Capital Securities to the extent permitted by this Declaration or
          redeemed, repurchased or canceled in accordance with the terms of
          this Declaration, such Global Capital Security shall be returned
          to the Clearing Agency for cancellation or retained and canceled
          by the Property Trustee.  At any time prior to such cancellation,
          if any beneficial interest in a Global Capital Security is
          exchanged for Definitive Capital Securities, Capital Securities
          represented by such Global Capital Security shall be reduced and
          an adjustment shall be made on the books and records of the
          Property Trustee (if it is then the custodian for such Global
          Capital Security) with respect to such Global Capital Security,
          by the Property Trustee or the Securities Custodian, to reflect
          such reduction.

                    (h)   Obligations with Respect to Transfers and
          Exchanges of Capital Securities.

                    (i)   To permit registrations of transfers and
               exchanges, the Trust shall execute and the Property Trustee
               shall authenticate Definitive Capital Securities and Global

                                       47
<PAGE>
 
               Capital Securities at the Registrar's or co-Registrar's
               request in accordance with the terms of this Declaration.

                    (ii)  Registrations of transfers or exchanges will be
               effected without charge, but only upon payment (with such
               indemnity as the Trust or the Sponsor may require) in
               respect of any tax or other governmental charge that may be
               imposed in relation to it.

                    (iii) The Registrar or co-registrar shall not be
               required to register the transfer of or exchange of (a)
               Capital Securities during a period beginning at the opening
               of business 15 days before the day of mailing of a notice of
               redemption or any notice of selection of Capital Securities
               for redemption and ending at the close of business on the
               day of such mailing; or (b) any Capital Security so selected
               for redemption in whole or in part, except the unredeemed
               portion of any Capital Security being redeemed in part.

                    (iv)  Prior to the due presentation for registrations
               of transfer of any Capital Security, the Trust, the Property
               Trustee, the Paying Agent, the Registrar or any co-registrar
               may deem and treat the person in whose name a Capital
               Security is registered as the absolute owner of such Capital
               Security for the purpose of receiving Distributions on such
               Capital Security and for all other purposes whatsoever, and
               none of the Trust, the Property Trustee, the Paying Agent,
               the Registrar or any co-registrar shall be affected by
               notice to the contrary.

                    (v)   All Capital Securities issued upon any transfer
               or exchange pursuant to the terms of this Declaration shall
               evidence the same security and shall be entitled to the same
               benefits under this Declaration as the Capital Securities
               surrendered upon such transfer or exchange.

                    (i)   No Obligation of the Property Trustee.

                    (i)   The Property Trustee shall have no
               responsibility or obligation to any beneficial owner of a
               Global Capital Security, a Participant in the Clearing
               Agency or other Person with respect to the accuracy of the
               records of the Clearing Agency or its nominee or of any
               Participant thereof, with respect to any ownership interest
               in the Capital Securities or with respect to the delivery to
               any Participant, beneficial owner or other Person (other
               than the Clearing Agency) of any notice (including any
               notice of redemption) or the payment of any amount, under or
               with respect to such Capital Securities.  All notices and
               communications to be given to the Holders and all payments
               to be made to Holders under the Capital Securities shall be
               given or made only to or upon the order of the registered
               Holders 

                                       48
<PAGE>
 
               (which shall be the Clearing Agency or its nominee in the case of
               a Global Capital Security). The rights of beneficial owners in
               any Global Capital Security shall be exercised only through the
               Clearing Agency subject to the applicable rules and procedures of
               the Clearing Agency. The Property Trustee may conclusively rely
               and shall be fully protected in relying upon information
               furnished by the Clearing Agency or any agent thereof with
               respect to its Participants and any beneficial owners.

                    (ii)  The Property Trustee and Registrar shall have no
               obligation or duty to monitor, determine or inquire as to
               compliance with any restrictions on transfer imposed under
               this Declaration or under applicable law with respect to any
               transfer of any interest in any Capital Security (including
               any transfers between or among Clearing Agency Participants
               or beneficial owners in any Global Capital Security) other
               than to require delivery of such certificates and other
               documentation or evidence as are expressly required by, and
               to do so if and when expressly required by, the terms of
               this Declaration, and to examine the same to determine
               substantial compliance as to form with the express
               requirements hereof.

          SECTION 9.3     Deemed Security Holders.

                    The Trustees may treat the Person in whose name any
          Security shall be registered on the books and records of the
          Trust as the sole owner of such Security for purposes of
          receiving Distributions and for all other purposes whatsoever
          and, accordingly, shall not be bound to recognize any equitable
          or other claim to or interest in such Security on the part of any
          Person, whether or not the Trust shall have actual or other
          notice thereof.

          SECTION 9.4     Book Entry Interests.

                    Global Capital Securities shall initially be registered
          on the books and records of the Trust in the name of Cede & Co.,
          the nominee of the Clearing Agency, and no Capital Security
          Beneficial Owner will receive a definitive Capital Security
          Certificate representing such Capital Security Beneficial Owner's
          interests in such Global Capital Securities, except as provided
          in Section 9.2.  Unless and until definitive, fully registered
          Capital Securities certificates have been issued to the Capital
          Security Beneficial Owners pursuant to Section 9.2:

                    (a)   the provisions of this Section 9.4 shall be in
               full force and effect;

                    (b)   the Trust and the Trustees shall be entitled to
               deal with the Clearing Agency for all purposes of this

                                       49
<PAGE>
 
               Declaration (including the payment of Distributions on the
               Global Capital Securities and receiving approvals, votes or
               consents hereunder) as the Holder of the Capital Securities
               and the sole holder of the Global Certificates and shall
               have no obligation to the Capital Security Beneficial
               Owners;

                    (c)   to the extent that the provisions of this
               Section 9.4 conflict with any other provisions of this
               Declaration, the provisions of this Section 9.4 shall
               control; and

                    (d)   the rights of the Capital Security Beneficial
               Owners shall be exercised only through the Clearing Agency
               and shall be limited to those established by law and
               agreements between such Capital Security Beneficial Owners
               and the Clearing Agency and/or the Clearing Agency
               Participants and receive and transmit payments of
               Distributions on the Global Certificates to such Clearing
               Agency Participants.  DTC will make book entry transfers
               among the Clearing Agency Participants.

          SECTION 9.5     Notices to Clearing Agency.

                    Whenever a notice or other communication to the Capital
          Security Holders is required under this Declaration, the Trustees
          shall give all such notices and communications specified herein
          to be given to the Holders of Global Capital Securities to the
          Clearing Agency, and shall have no notice obligations to the
          Capital Security Beneficial Owners.

          SECTION 9.6     Appointment of Successor Clearing Agency.

                    If any Clearing Agency elects to discontinue its
          services as securities depositary with respect to the Capital
          Securities, the Administrative Trustees may, in their sole
          discretion, appoint a successor Clearing Agency with respect to
          such Capital Securities.

                                      ARTICLE X
                              LIMITATION OF LIABILITY OF
                      HOLDERS OF SECURITIES, TRUSTEES OR OTHERS

          SECTION 10.1    Liability.

                    (a)   Except as expressly set forth in this
          Declaration, the Securities Guarantees and the terms of the
          Securities, the Sponsor shall not be: 

                    (i)   personally liable for the return of any portion
               of the capital contributions (or any return thereon) of the

                                       50
<PAGE>
 
               Holders of the Securities which shall be made solely from
               assets of the Trust; and

                    (ii)  be required to pay to the Trust or to any Holder
               of Securities any deficit upon dissolution of the Trust or
               otherwise.  

                    (b)   The Sponsor shall be liable for all of the debts
          and obligations of the Trust (other than with respect to the
          Securities) to the extent not satisfied out of the Trust's
          assets.

                    (c)   Pursuant to SECTION 3803(a) of the Business Trust Act,
          the Holders of the Capital Securities shall be entitled to the
          same limitation of personal liability extended to stockholders of
          private corporations for profit organized under the General
          Corporation Law of the State of Delaware.

          SECTION 10.2    Exculpation.  

                    (a)   No Indemnified Person shall be liable,
          responsible or accountable in damages or otherwise to the Trust
          or any Covered Person for any loss, damage or claim incurred by
          reason of any act or omission performed or omitted by such
          Indemnified Person in good faith on behalf of the Trust and in a
          manner such Indemnified Person reasonably believed to be within
          the scope of the authority conferred on such Indemnified Person
          by this Declaration or by law, except that an Indemnified Person
          shall be liable for any such loss, damage or claim incurred by
          reason of such Indemnified Person's gross negligence or willful
          misconduct with respect to such acts or omissions.

                    (b)   An Indemnified Person shall be fully protected
          in relying in good faith upon the records of the Trust and upon
          such information, opinions, reports or statements presented to
          the Trust by any Person as to matters the Indemnified Person
          reasonably believes are within such other Person's professional
          or expert competence and who has been selected with reasonable
          care by or on behalf of the Trust, including information,
          opinions, reports or statements as to the value and amount of the
          assets, liabilities, profits, losses, or any other facts
          pertinent to the existence and amount of assets from which
          Distributions to Holders of Securities might properly be paid.

          SECTION 10.3    Fiduciary Duty.

                    (a)   To the extent that, at law or in equity, an
          Indemnified Person has duties (including fiduciary duties) and
          liabilities relating thereto to the Trust or to any other Covered
          Person, an Indemnified Person acting under this Declaration shall
          not be liable to the Trust or to any other Covered Person for its
          good faith reliance on the provisions of this Declaration.  The

                                       51
<PAGE>
 
          provisions of this Declaration, to the extent that they restrict
          the duties and liabilities of an Indemnified Person otherwise
          existing at law or in equity (other than the duties imposed on
          the Property Trustee under the Trust Indenture Act), are agreed
          by the parties hereto to replace such other duties and
          liabilities of such Indemnified Person.

                    (b)   Unless otherwise expressly provided herein: 

                    (i)   whenever a conflict of interest exists or arises
               between any Covered Persons; or 

                    (ii)  whenever this Declaration or any other agreement
               contemplated herein or therein provides that an Indemnified
               Person shall act in a manner that is, or provides terms that
               are, fair and reasonable to the Trust or any Holder of
               Securities,

          the Indemnified Person shall resolve such conflict of interest,
          take such action or provide such terms, considering in each case
          the relative interest of each party (including its own interest)
          to such conflict, agreement, transaction or situation and the
          benefits and burdens relating to such interests, any customary or
          accepted industry practices, and any applicable generally
          accepted accounting practices or principles.  In the absence of
          bad faith by the Indemnified Person, the resolution, action or
          term so made, taken or provided by the Indemnified Person shall
          not constitute a breach of this Declaration or any other
          agreement contemplated herein or of any duty or obligation of the
          Indemnified Person at law or in equity or otherwise.

                    (c)   Whenever in this Declaration an Indemnified
          Person is permitted or required to make a decision: 

                    (i)   in its "discretion" or under a grant of similar
               authority, the Indemnified Person shall be entitled to
               consider such interests and factors as it desires, including
               its own interests, and shall have no duty or obligation to
               give any consideration to any interest of or factors
               affecting the Trust or any other Person; or

                    (ii)  in its "good faith" or under another express
               standard, the Indemnified Person shall act under such
               express standard and shall not be subject to any other or
               different standard imposed by this Declaration or by
               applicable law.

          SECTION 10.4    Indemnification.

                    (a)  (i)  The Debenture Issuer shall indemnify, to the
               full extent permitted by law, any Company Indemnified Person
               who was or is a party or is threatened to be made a party to

                                       52
<PAGE>
 
               any threatened, pending or completed action, suit or
               proceeding, whether civil, criminal, administrative or
               investigative (other than an action by or in the right of
               the Trust) by reason of the fact that he is or was a Company
               Indemnified Person against expenses (including attorneys'
               fees and expenses), judgments, fines and amounts paid in
               settlement actually and reasonably incurred by him in
               connection with such action, suit or proceeding if he acted
               in good faith and in a manner he reasonably believed to be
               in or not opposed to the best interests of the Trust, and,
               with respect to any criminal action or proceeding, had no
               reasonable cause to believe his conduct was unlawful.  The
               termination of any action, suit or proceeding by judgment,
               order, settlement, conviction, or upon a plea of nolo
               contendere or its equivalent, shall not, of itself, create a
               presumption that the Company Indemnified Person did not act
               in good faith and in a manner which he reasonably believed
               to be in or not opposed to the best interests of the Trust,
               and, with respect to any criminal action or proceeding, had
               reasonable cause to believe that his conduct was unlawful.

                    (ii)  The Debenture Issuer shall indemnify, to the
               full extent permitted by law, any Company Indemnified Person
               who was or is a party or is threatened to be made a party to
               any threatened, pending or completed action or suit by or in
               the right of the Trust to procure a judgment in its favor by
               reason of the fact that he is or was a Company Indemnified
               Person against expenses (including attorneys' fees and
               expenses) actually and reasonably incurred by him in
               connection with the defense or settlement of such action or
               suit if he acted in good faith and in a manner he reasonably
               believed to be in or not opposed to the best interests of
               the Trust and except that no such indemnification shall be
               made in respect of any claim, issue or matter as to which
               such Company Indemnified Person shall have been adjudged to
               be liable to the Trust unless and only to the extent that
               the Court of Chancery of Delaware or the court in which such
               action or suit was brought shall determine upon application
               that, despite the adjudication of liability but in view of
               all the circumstances of the case, such person is fairly and
               reasonably entitled to indemnity for such expenses which
               such Court of Chancery or such other court shall deem
               proper.

                    (iii) To the extent that a Company Indemnified Person
               shall be successful on the merits or otherwise (including
               dismissal of an action without prejudice or the settlement
               of an action without admission of liability) in defense of
               any action, suit or proceeding referred to in paragraphs (i)
               and (ii) of this Section 10.4(a), or in defense of any
               claim, issue or matter therein, he shall be indemnified, to
               the full extent permitted by law, against expenses
               (includ-

                                       53
<PAGE>
 
               ing attorneys' fees) actually and reasonably incurred by him in
               connection therewith.

                    (iv)  Any indemnification under paragraphs (i) and
               (ii) of this Section 10.4(a) (unless ordered by a court)
               shall be made by the Debenture Issuer only as authorized in
               the specific case upon a determination that indemnification
               of the Company Indemnified Person is proper in the
               circumstances because he has met the applicable standard of
               conduct set forth in paragraphs (i) and (ii).  Such
               determination shall be made (1) by the Administrative
               Trustees by a majority vote of a quorum consisting of such
               Administrative Trustees who were not parties to such action,
               suit or proceeding, (2) if such a quorum is not obtainable,
               or, even if obtainable, if a quorum of disinterested
               Administrative Trustees so directs, by independent legal
               counsel in a written opinion, or (3) by the Common Security
               Holder of the Trust.

                    (v)   Expenses (including attorneys' fees and
               expenses) incurred by a Company Indemnified Person in
               defending a civil, criminal, administrative or investigative
               action, suit or proceeding referred to in paragraphs (i) and
               (ii) of this Section 10.4(a) shall be paid by the Debenture
               Issuer in advance of the final disposition of such action,
               suit or proceeding upon receipt of an undertaking by or on
               behalf of such Company Indemnified Person to repay such
               amount if it shall ultimately be determined that he is not
               entitled to be indemnified by the Debenture Issuer as
               authorized in this Section 10.4(a).  Notwithstanding the
               foregoing, no advance shall be made by the Debenture Issuer
               if a determination is reasonably and promptly made (i) by
               the Administrative Trustees by a majority vote of a quorum
               of disinterested Administrative Trustees, (ii) if such a
               quorum is not obtainable, or, even if obtainable, if a
               quorum of disinterested Administrative Trustees so directs,
               by independent legal counsel in a written opinion or (iii)
               the Common Security Holder of the Trust, that, based upon
               the facts known to the Administrative Trustees, counsel or
               the Common Security Holder at the time such determination is
               made, such Company Indemnified Person acted in bad faith or
               in a manner that such person did not believe to be in or not
               opposed to the best interests of the Trust, or, with respect
               to any criminal proceeding, that such Company Indemnified
               Person believed or had reasonable cause to believe his
               conduct was unlawful.  In no event shall any advance be made
               in instances where the Administrative Trustees, independent
               legal counsel or Common Security Holder reasonably determine
               that such person deliberately breached his duty to the Trust
               or its Common or Capital Security Holders.

                    (vi)  The indemnification and advancement of expenses

                                       54
<PAGE>
 
               provided by, or granted pursuant to, the other paragraphs of
               this Section 10.4(a) shall not be deemed exclusive of any
               other rights to which those seeking indemnification and
               advancement of expenses may be entitled under any agreement,
               vote of stockholders or disinterested directors of the
               Debenture Issuer or Capital Security Holders of the Trust or
               otherwise, both as to action in his official capacity and as
               to action in another capacity while holding such office. 
               All rights to indemnification under this Section 10.4(a)
               shall be deemed to be provided by a contract between the
               Debenture Issuer and each Company Indemnified Person who
               serves in such capacity at any time while this Section
               10.4(a) is in effect.  Any repeal or modification of this
               Section 10.4(a) shall not affect any rights or obligations
               then existing.

                    (vii) The Debenture Issuer or the Trust may purchase
               and maintain insurance on behalf of any person who is or was
               a Company Indemnified Person against any liability asserted
               against him and incurred by him in any such capacity, or
               arising out of his status as such, whether or not the
               Debenture Issuer would have the power to indemnify him
               against such liability under the provisions of this Section
               10.4(a).

                    (viii)  For purposes of this Section 10.4(a),
               references to "the Trust" shall include, in addition to the
               resulting or surviving entity, any constituent entity
               (including any constituent of a constituent) absorbed in a
               consolidation or merger, so that any person who is or was a
               director, trustee, officer or employee of such constituent
               entity, or is or was serving at the request of such
               constituent entity as a director, trustee, officer, employee
               or agent of another entity, shall stand in the same position
               under the provisions of this Section 10.4(a) with respect to
               the resulting or surviving entity as he would have with
               respect to such constituent entity if its separate existence
               had continued.

                    (ix)  The indemnification and advancement of expenses
               provided by, or granted pursuant to, this Section 10.4(a)
               shall, unless otherwise provided when authorized or
               ratified, continue as to a person who has ceased to be a
               Company Indemnified Person and shall inure to the benefit of
               the heirs, executors and administrators of such a person.

                    (b)   The Debenture Issuer agrees to indemnify the (i)
          Property Trustee, (ii) the Delaware Trustee, (iii) any Affiliate
          of the Property Trustee and the Delaware Trustee, and (iv) any
          officers, directors, shareholders, members, partners, employees,
          representatives, custodians, nominees or agents of the Property
          Trustee and the Delaware Trustee (each of the Persons in (i)
          through (iv) being referred to as a "Fiduciary Indemnified

                                       55
<PAGE>
 
          Person") for, and to hold each Fiduciary Indemnified Person
          harmless against, any and all loss, liability, damage, claim or
          expense including taxes (other than taxes based on the income of
          such Fiduciary Indemnified Person) incurred without negligence or
          bad faith on its part, arising out of or in connection with the
          acceptance or administration of the trust or trusts hereunder,
          including the costs and expenses (including reasonable legal fees
          and expenses) of defending itself against or investigating any
          claim or liability in connection with the exercise or performance
          of any of its powers or duties hereunder.  The obligation to
          indemnify as set forth in this Section 10.4(b) shall survive the
          satisfaction and discharge of this Declaration.

          SECTION 10.5    Outside Businesses.

                    Any Covered Person, the Sponsor, the Delaware Trustee
          and the Property Trustee may engage in or possess an interest in
          other business ventures of any nature or description,
          independently or with others, similar or dissimilar to the
          business of the Trust, and the Trust and the Holders of
          Securities shall have no rights by virtue of this Declaration in
          and to such independent ventures or the income or profits derived
          therefrom, and the pursuit of any such venture, even if
          competitive with the business of the Trust, shall not be deemed
          wrongful or improper.  No Covered Person, the Sponsor, the
          Delaware Trustee, or the Property Trustee shall be obligated to
          present any particular investment or other opportunity to the
          Trust even if such opportunity is of a character that, if
          presented to the Trust, could be taken by the Trust, and any
          Covered Person, the Sponsor, the Delaware Trustee and the
          Property Trustee shall have the right to take for its own account
          (individually or as a partner or fiduciary) or to recommend to
          others any such particular investment or other opportunity.  Any
          Covered Person, the Delaware Trustee and the Property Trustee may
          engage or be interested in any financial or other transaction
          with the Sponsor or any Affiliate of the Sponsor, or may act as
          depositary for, trustee or agent for, or act on any committee or
          body of holders of, securities or other obligations of the
          Sponsor or its Affiliates.

                                      ARTICLE XI
                                      ACCOUNTING

          SECTION 11.1    Fiscal Year.

                    The fiscal year ("Fiscal Year") of the Trust shall be
          the calendar year, or such other year as is required by the Code.

          SECTION 11.2    Certain Accounting Matters.

                    (a)   At all times during the existence of the Trust,
          the Administrative Trustees shall keep, or cause to be kept, full

                                       56
<PAGE>
 
          books of account, records and supporting documents, which shall
          reflect in reasonable detail, each transaction of the Trust.  The
          books of account shall be maintained on the accrual method of
          accounting, in accordance with generally accepted accounting
          principles, consistently applied.  The Trust shall use the
          accrual method of accounting for United States Federal income tax
          purposes.  The books of account and the records of the Trust
          shall be examined by and reported upon as of the end of each
          Fiscal Year of the Trust by a firm of independent certified
          public accountants selected by the Administrative Trustees.

                    (b)   The Administrative Trustees shall cause to be
          prepared and delivered to each of the Holders of Securities,
          within 90 days after the end of each Fiscal Year of the Trust,
          annual financial statements of the Trust, including a balance
          sheet of the Trust as of the end of such Fiscal Year, and the
          related statements of income or loss;

                    (c)   The Administrative Trustees shall cause to be
          duly prepared and delivered to each of the Holders of Securities,
          any annual United States Federal income tax information
          statement, required by the Code, containing such information with
          regard to the Securities held by each Holder as is required by
          the Code and the Treasury Regulations.  Notwithstanding any right
          under the Code to deliver any such statement at a later date, the
          Administrative Trustees shall endeavor to deliver all such
          information statements within 30 days after the end of each
          Fiscal Year of the Trust.

                    (d)   The Administrative Trustees shall cause to be
          duly prepared and filed with the appropriate taxing authority, an
          annual United States Federal income tax return, on a Form 1041 or
          such other form required by United States Federal income tax law,
          and any other annual income tax returns required to be filed by
          the Administrative Trustees on behalf of the Trust with any state
          or local taxing authority.

          SECTION 11.3    Banking.

                    The Trust shall maintain one or more bank accounts in
          the name and for the sole benefit of the Trust; provided,
          however, that all payments of funds in respect of the Debentures
          held by the Property Trustee shall be made directly to the
          Property Trustee Account and no other funds of the Trust shall be
          deposited in the Property Trustee Account.  The sole signatories
          for such accounts shall be designated by the Administrative
          Trustees; provided, however, that the Property Trustee shall
          designate the signatories for the Property Trustee Account.

          SECTION 11.4    Withholding.

                    The Trust and the Administrative Trustees shall comply

                                       57
<PAGE>
 
          with all withholding requirements under United States Federal,
          state and local law.  The Trust shall request, and the Holders
          shall provide to the Trust, such forms or certificates as are
          necessary to establish an exemption from withholding with respect
          to each Holder, and any representations and forms as shall
          reasonably be requested by the Trust to assist it in determining
          the extent of, and in fulfilling, its withholding obligations. 
          The Administrative Trustees shall file required forms with
          applicable jurisdictions and, unless an exemption from
          withholding is properly established by a Holder, shall remit
          amounts withheld with respect to the Holder to applicable
          jurisdictions.  To the extent that the Trust is required to
          withhold and pay over any amounts to any authority with respect
          to Distributions or allocations to any Holder, the amount
          withheld shall be deemed to be a Distribution in the amount of
          the withholding to the Holder.  In the event of any claimed over
          withholding, Holders shall be limited to an action against the
          applicable jurisdiction.  If the amount required to be withheld
          was not withheld from actual Distributions made, the Trust may
          reduce subsequent Distributions by the amount of such
          withholding. 

                                     ARTICLE XII
                               AMENDMENTS AND MEETINGS

          SECTION 12.1    Amendments.

                    (a)   Except as otherwise provided in this Declaration
          or by any applicable terms of the Securities, this Declaration
          may only be amended by a written instrument approved and executed
          by:

                    (i)   the Administrative Trustees (or if there are
               more than two Administrative Trustees a majority of the
               Administrative Trustees); 

                    (ii)  if the amendment affects the rights, powers,
               duties, obligations or immunities of the Property Trustee,
               the Property Trustee; and

                    (iii) if the amendment affects the rights, powers,
               duties, obligations or immunities of the Delaware Trustee,
               the Delaware Trustee.

                    (b)   No amendment shall be made, and any such
          purported amendment shall be void and ineffective:

                    (i)   unless, in the case of any proposed amendment,
               the Property Trustee shall have first received an Officers'
               Certificate from each of the Trust and the Sponsor that such
               amendment is permitted by, and conforms to, the terms of
               this Declaration (including the terms of the Securities);

                                       58
<PAGE>
 
                    (ii)  unless, in the case of any proposed amendment
               which affects the rights, powers, duties, obligations or
               immunities of the Property Trustee, the Property Trustee
               shall have first received:

                          (A)  an Officers' Certificate from each of the
                    Trust and the Sponsor that such amendment is permitted
                    by, and conforms to, the terms of this Declaration
                    (including the terms of the Securities); and

                          (B)  an opinion of counsel (who may be counsel
                    to the Sponsor or the Trust) that such amendment is
                    permitted by, and conforms to, the terms of this
                    Declaration (including the terms of the Securities),

               provided, however, that the Property Trustee shall not be
          required to sign any such amendment, and

                    (iii) to the extent the result of such amendment would
               be to:

                          (A)  cause the Trust to fail to continue to be
                    classified for purposes of United States Federal income
                    taxation as a grantor trust;

                          (B)  reduce or otherwise adversely affect the
                    powers of the Property Trustee in contravention of the
                    Trust Indenture Act; or

                          (C)  cause the Trust to be deemed to be an
                    Investment Company required to be registered under the
                    Investment Company Act;

                    (c)   At such time after the Trust has issued any
          Securities that remain outstanding, any amendment that would
          adversely affect the rights, privileges or preferences of any
          Holder of Securities may be effected only with such additional
          requirements as may be set forth in the terms of such Securities;

                    (d)   Section 9.1(c) and this Section 12.1 shall not
          be amended without the consent of all of the Holders of the
          Securities;

                    (e)   Article Four shall not be amended without the
          consent of the Holders of a Majority in liquidation amount of the
          Common Securities and;

                    (f)   The rights of the holders of the Common
          Securities under Article Five to increase or decrease the number
          of, and appoint and remove Trustees shall not be amended without
          the consent of the Holders of a Majority in liquidation amount of
          the Common Securities; and

                                       59
<PAGE>
 
                    (g)   Notwithstanding Section 12.1(c), this
          Declaration may be amended without the consent of the Holders of
          the Securities to:

                    (i)   cure any ambiguity, correct or supplement any
               provision in this Declaration that may be inconsistent with
               any other provision of this Declaration or to make any other
               provisions with respect to matters or questions arising
               under this Declaration which shall not be inconsistent with
               the other provisions of the Declaration; and

                    (ii)  to modify, eliminate or add to any provisions of
               the Declaration to such extent as shall be necessary to
               ensure that the Trust will be classified for United States
               Federal income tax purposes as a grantor trust at all times
               that any Securities are outstanding or to ensure that the
               Trust will not be required to register as an Investment
               Company under the Investment Company Act.

          provided, however, that in the case of clause (i), such action
          shall not adversely affect in any material respect the interests
          of the Holders of the Securities, and any amendments of this
          Declaration shall become effective when notice thereof is given
          to the Holders of the Securities.

          SECTION 12.2    Meetings of the Holders of Securities; Action by
                          Written Consent.

                    (a)   Meetings of the Holders of any class of
          Securities may be called at any time by the Administrative
          Trustees (or as provided in the terms of the Securities) to
          consider and act on any matter on which Holders of such class of
          Securities are entitled to act under the terms of this
          Declaration, the terms of the Securities or the rules of any
          stock exchange on which the Capital Securities are listed or
          admitted for trading.  The Administrative Trustees shall call a
          meeting of the Holders of such class if directed to do so by the
          Holders of at least 10% in liquidation amount of such class of
          Securities.  Such direction shall be given by delivering to the
          Administrative Trustees one or more notice in a writing stating
          that the signing Holders of Securities wish to call a meeting and
          indicating the general or specific purpose for which the meeting
          is to be called.  Any Holders of Securities calling a meeting
          shall specify in writing the Security Certificates held by the
          Holders of Securities exercising the right to call a meeting and
          only those Securities specified shall be counted for purposes of
          determining whether the required percentage set forth in the
          second sentence of this paragraph has been met.

                    (b)   Except to the extent otherwise provided in the
          terms of the Securities, the following provisions shall apply to
          meetings of Holders of Securities:

                                       60
<PAGE>
 
                    (i)   notice of any such meeting shall be given to all
               the Holders of Securities having a right to vote thereat at
               least seven days and not more than 60 days before the date
               of such meeting.  Whenever a vote, consent or approval of
               the Holders of Securities is permitted or required under
               this Declaration or the rules of any stock exchange on which
               the Capital Securities are listed or admitted for trading,
               such vote, consent or approval may be given at a meeting of
               the Holders of Securities.  Any action that may be taken at
               a meeting of the Holders of Securities may be taken without
               a meeting if a consent in writing setting forth the action
               so taken is signed by the Holders of Securities owning not
               less than the minimum amount of Securities in liquidation
               amount that would be necessary to authorize or take such
               action at a meeting at which all Holders of Securities
               having a right to vote thereon were present and voting. 
               Prompt notice of the taking of action without a meeting
               shall be given to the Holders of Securities entitled to vote
               who have not consented in writing.  The Administrative
               Trustees may specify that any written ballot submitted to
               the Security Holder for the purpose of taking any action
               without a meeting shall be returned to the Trust within the
               time specified by the Administrative Trustees;

                    (ii)  each Holder of a Security may authorize any
               Person to act for it by proxy on all matters in which a
               Holder of Securities is entitled to participate, including
               waiving notice of any meeting, or voting or participating at
               a meeting.  No proxy shall be valid after the expiration of
               11 months from the date thereof unless otherwise provided in
               the proxy.  Every proxy shall be revocable at the pleasure
               of the Holder of Securities executing it.  Except as
               otherwise provided herein, all matters relating to the
               giving, voting or validity of proxies shall be governed by
               the General Corporation Law of the State of Delaware
               relating to proxies, and judicial interpretations
               thereunder, as if the Trust were a Delaware corporation and
               the Holders of the Securities were stockholders of a
               Delaware corporation;

                    (iii) each meeting of the Holders of the Securities
               shall be conducted by the Administrative Trustees or by such
               other Person that the Administrative Trustees may designate;
               and

                    (iv)  unless the Business Trust Act, this Declaration,
               the terms of the Securities, the Trust Indenture Act or the
               listing rules of any stock exchange on which the Capital
               Securities are then listed or trading, otherwise provides,
               the Administrative Trustees, in their sole discretion, shall
               establish all other provisions relating to meetings of
               Holders of Securities, including notice of the time, place
               or purpose of any meeting at which any matter is to be voted
               on 

                                       61
<PAGE>
 
               by any Holders of Securities, waiver of any such notice,
               action by consent without a meeting, the establishment of a
               record date, quorum requirements, voting in person or by
               proxy or any other matter with respect to the exercise of
               any such right to vote.

                                     ARTICLE XIII
                         REPRESENTATIONS OF PROPERTY TRUSTEE
                                 AND DELAWARE TRUSTEE

          SECTION 13.1    Representations and Warranties of Property
                          Trustee.

                    The Trustee that acts as initial Property Trustee
          represents and warrants to the Trust and to the Sponsor at the
          date of this Declaration, and each Successor Property Trustee
          represents and warrants to the Trust and the Sponsor at the time
          of the Successor Property Trustee's acceptance of its appointment
          as Property Trustee that:

                    (a)   The Property Trustee is a New York banking
          corporation with trust powers and authority to execute and
          deliver, and to carry out and perform its obligations under the
          terms of, this Declaration;

                    (b)   The execution, delivery and performance by the
          Property Trustee of the Declaration has been duly authorized by
          all necessary corporate action on the part of the Property
          Trustee.  The Declaration has been duly executed and delivered by
          the Property Trustee and constitutes a legal, valid and binding
          obligation of the Property Trustee, enforceable against it in
          accordance with its terms, subject to applicable bankruptcy,
          reorganization, moratorium, insolvency, and other similar laws
          affecting creditors' rights generally and to general principles
          of equity and the discretion of the court (regardless of whether
          the enforcement of such remedies is considered in a proceeding in
          equity or at law);

                    (c)   The execution, delivery and performance of this
          Declaration by the Property Trustee does not conflict with or
          constitute a breach of the charter or by-laws of the Property
          Trustee; and

                    (d)   No consent, approval or authorization of, or
          registration with or notice to, any New York State or Federal
          banking authority is required for the execution, delivery or
          performance by the Property Trustee of this Declaration.

                                       62
<PAGE>
 
          SECTION 13.2    Representations and Warranties of Delaware
                          Trustee.

                    The Trustee that acts as initial Delaware Trustee
          represents and warrants to the Trust and to the Sponsor at the
          date of this Declaration, and each Successor Delaware Trustee
          represents and warrants to the Trust and the Sponsor at the time
          of the Successor Delaware Trustee's acceptance of its appointment
          as Delaware Trustee that:

                    (a)   The Delaware Trustee is duly organized, validly
          existing and in good standing under the laws of the State of
          Delaware, with trust power and authority to execute and deliver,
          and to carry out and perform its obligations under the terms of,
          this Declaration;

                    (b)   The execution, delivery and performance by the
          Delaware Trustee of this Declaration has been duly authorized by
          all necessary corporate action on the part of the Delaware
          Trustee.  This Declaration has been duly executed and delivered
          by the Delaware Trustee and constitutes a legal, valid and
          binding obligation of the Delaware Trustee, enforceable against
          it in accordance with its terms, subject to applicable
          bankruptcy, reorganization, moratorium, insolvency, and other
          similar laws affecting creditors' rights generally and to general
          principles of equity and the discretion of the court (regardless
          of whether the enforcement of such remedies is considered in a
          proceeding in equity or at law);

                    (c)   No consent, approval or authorization of, or
          registration with or notice to, any Federal banking authority is
          required for the execution, delivery or performance by the
          Delaware Trustee of this Declaration; and

                    (d)   The Delaware Trustee is a natural person who is
          a resident of the State of Delaware or, if not a natural person,
          an entity which has its principal place of business in the State
          of Delaware.

                                     ARTICLE XIV
                                    MISCELLANEOUS

          SECTION 14.1    Notices.

                    All notices provided for in this Declaration shall be
          in writing, duly signed by the party giving such notice, and
          shall be delivered, telecopied or mailed by first class mail, as
          follows:

                    (a)   if given to the Trust, in care of the
          Administrative Trustees at the Trust's mailing address set forth
          below 

                                       63
<PAGE>
 
          (or such other address as the Trust may give notice of to the Holders
          of the Securities):

                          BankBoston Capital Trust III
                          P.O. Box 2016
                          Boston, Massachusetts  02106-2016

                          Attention:    Kathleen M. McGillycuddy,
                                        Administrative Trustee

                    (b)   if given to the Delaware Trustee, at the mailing
          address set forth below (or such other address as Delaware
          Trustee may give notice of to the Holders of the Securities):

                          The Bank of New York (Delaware)
                          23 White Clay Center
                          Route 273
                          Newark, Delaware 19711
                          Attention: Corporate Trust Department

                    (c)   if given to the Property Trustee, at the
          Property Trustee's mailing address set forth below (or such other
          address as the Property Trustee may give notice of to the Holders
          of the Securities):

                          The Bank of New York
                          101 Barclay Street, 21 West 
                          New York, New York 10283

                          Attention:    Corporate Trust
                                        Trustee Administration

                    (d)   if given to the Holder of the Common Securities,
          at the mailing address of the Sponsor set forth below (or such
          other address as the Holder of the Common Securities may give
          notice to the Trust):

                          BankBoston Corporation
                          100 Federal Street, MA BOS 01-25-01
                          Boston, Massachusetts  02110

                          Attention:  Gary A. Spiess, General Counsel

                    (e)   if given to any other Holder, at the address set
          forth on the books and records of the Trust.

                    All such notices shall be deemed to have been given
          when received in person, telecopied with receipt confirmed, or
          mailed by first class mail, postage prepaid except that if a
          notice or other document is refused delivery or cannot be
          delivered because of a changed address of which no notice was
          given, such notice or other document shall be deemed to have been

                                       64
<PAGE>
 
          delivered on the date of such refusal or inability to deliver.

          SECTION 14.2    Governing Law.

                    This Declaration and the rights of the parties
          hereunder shall be governed by and interpreted in accordance with
          the laws of the State of Delaware and all rights and remedies
          shall be governed by such laws without regard to principles of
          conflict of laws.

          SECTION 14.3    Intention of the Parties.

                    It is the intention of the parties hereto that the
          Trust be classified for United States Federal income tax purposes
          as a grantor trust.  The provisions of this Declaration shall be
          interpreted to further this intention of the parties.

          SECTION 14.4    Headings.

                    Headings contained in this Declaration are inserted for
          convenience of reference only and do not affect the
          interpretation of this Declaration or any provision hereof.

          SECTION 14.5    Successors and Assigns

                    Whenever in this Declaration any of the parties hereto
          is named or referred to, the successors and assigns of such party
          shall be deemed to be included, and all covenants and agreements
          in this Declaration by the Sponsor and the Trustees shall bind
          and inure to the benefit of their respective successors and
          assigns, whether so expressed.

          SECTION 14.6    Partial Enforceability.

                    If any provision of this Declaration, or the
          application of such provision to any Person or circumstance,
          shall be held invalid, the remainder of this Declaration, or the
          application of such provision to persons or circumstances other
          than those to which it is held invalid, shall not be affected
          thereby.

          SECTION 14.7    Counterparts.

                    This Declaration may contain more than one counterpart
          of the signature page and this Declaration may be executed by the
          affixing of the signature of each of the Trustees to one of such
          counterpart signature pages.  All of such counterpart signature
          pages shall be read as though one, and they shall have the same
          force and effect as though all of the signers had signed a single
          signature page.

                                       65
<PAGE>
 
                    IN WITNESS WHEREOF, the undersigned has caused these
          presents to be executed as of the day and year first above
          written.

                                        __________________________________
                                        Robert T. Jefferson, as
                                        Administrative Trustee

                                        __________________________________
                                        Craig V. Starble, as Administrative
                                        Trustee

                                        __________________________________
                                        Kathleen M. McGillycuddy, as
                                        Administrative Trustee

                                        THE BANK OF NEW YORK (DELAWARE),
                                        as Delaware Trustee

                                        By:
                                           ------------------------------
                                           Name:
                                           Title:

                                        THE BANK OF NEW YORK
                                          as Property Trustee

                                        By:
                                           ------------------------------
                                           Name:
                                           Title:

                                        BANKBOSTON CORPORATION
                                        as Sponsor

                                        By:
                                           ------------------------------
                                           Name:   Kathleen M. McGillycuddy
                                           Title:  Executive Director, 
                                                   Global Treasury

                                       66
<PAGE>
 
                                       ANNEX I

                                       TERMS OF
                           FLOATING RATE CAPITAL SECURITIES
                           FLOATING RATE COMMON SECURITIES

                    Pursuant to Section 7.1 of the Amended and Restated
          Declaration of Trust, dated as of _______, 1997 (as amended from
          time to time, the "Declaration"), the designation, rights,
          privileges, restrictions, preferences and other terms and
          provisions of the Capital Securities and the Common Securities
          (collectively, the "Securities") are set out below (each
          capitalized term used but not defined herein has the meaning set
          forth in the Declaration or, if not defined in such Declaration,
          as defined in the Indenture):

                    1.   Designation and Number.

                    (a)  Capital Securities.  250,000 Capital Securities of
          the Trust, with an aggregate liquidation amount with respect to
          the assets of the Trust of two hundred fifty million dollars
          ($250,000,000), and with a liquidation amount with respect to the
          assets of the Trust of $1,000 per security, are hereby designated
          for the purposes of identification only as "Floating Rate Capital
          Securities" (the "Capital Securities").  The certificates
          evidencing the Capital Securities shall be substantially in the
          form of Exhibit A-1 to the Declaration, with such changes and
          additions thereto or deletions therefrom as may be required by
          ordinary usage, custom or practice or to conform to the rules of
          any stock exchange or quotation system on which the Capital
          Securities are listed or quoted.

                    (b)  Common Securities.  7,732 Common Securities of the
          Trust with an aggregate liquidation amount with respect to the
          assets of the Trust of seven million seven hundred thirty-two
          thousand dollars ($7,732,000) and with a liquidation amount with
          respect to the assets of the Trust of $1,000 per security, are
          hereby designated for the purposes of identification only as
          "Floating Rate Common Securities" (the "Common Securities").  The
          certificates evidencing the Common Securities shall be
          substantially in the form of Exhibit A-2 to the Declaration, with
          such changes and additions thereto or deletions therefrom as may
          be required by ordinary usage, custom or practice.

                    2.   Distributions.

                    (a)  Distributions on each Security will be payable at
          a rate per annum equal to LIBOR plus ____% (the "Distribution
          Rate") of the liquidation amount of $1,000 per Security (the
          "Liquidation Amount"), such rate being the rate of interest
          pay-

                                      I-1
<PAGE>
 
          able on the Debentures to be held by the Property Trustee. 
          LIBOR and the amount payable in respect of a Distribution for a
          Distribution Period (as defined herein) will be calculated by the
          Calculation Agent in the same manner as LIBOR and the interest
          payable in respect of each Interest Period for the Debentures, as
          set forth in the Indenture.  Distributions in arrears for more
          than one quarterly period will bear additional distributions
          thereon compounded quarterly at the applicable periodic
          Distribution Rate (to the extent permitted by applicable law). 
          The term "Distributions", as used herein, includes any such
          additional distributions unless otherwise stated.  A Distribution
          is payable only to the extent that payments are made in respect
          of the Debentures held by the Property Trustee and to the extent
          the Property Trustee has funds on hand legally available
          therefor.

                    (b)  Distributions on the Securities will be
          cumulative, will accumulate from the most recent date to which
          Distributions have been paid or, if no Distributions have been
          paid, from _______, 1997, to but excluding the related
          Distribution Date (as defined herein) and will be payable
          quarterly in arrears on _______, _______, _______, and _______ of
          each year, commencing on _______, 1997 (each, a "Distribution
          Date"), except as otherwise described below.  The amount of
          Distributions payable for any Distribution Period will be
          computed on the basis of the actual number of days elapsed in
          such period and a year of 360 days.  "Distribution Period" means
          the period from and including a Distribution Date (or _______,
          1997, in the case of the first Distribution Period) to but
          excluding the next Distribution Date.  If a Distribution Date is
          not a Business Day, then such Distribution Date and the first day
          of the next succeeding Distribution Period will be the next
          succeeding Business Day, except if such Business Day is in the
          next succeeding calendar month, such Distribution Date and the
          first day of the next succeeding Distribution Period will be the
          immediately preceding Business Day.  As long as no Event of
          Default has occurred and is continuing under the Indenture, the
          Debenture Issuer has the right under the Indenture to defer
          payments of interest by extending the interest payment period at
          any time and from time to time on the Debentures for a period not
          exceeding 20 consecutive quarterly periods, including the first
          such quarterly period during such period (each an "Extension
          Period"), during which Extension Period no interest shall be due
          and payable on the Debentures, provided that no Extension Period
          shall extend beyond the Maturity Date of the Debentures.  As a
          consequence of such deferral, Distributions will also be
          deferred.  Despite such deferral, quarterly Distributions will
          continue to accumulate with additional interest thereon (to the
          extent permitted by applicable law but not at a rate greater than
          the rate at which interest is then accruing on the Debentures) at
          the Distribution Rate then in effect compounded quarterly during
          any such Extension Period.  At the end of the Extension Period,
          all accrued and unpaid Distributions (but only to the extent
          payments are made in respect of the 

                                      I-2
<PAGE>
 
          Debentures held by the Property Trustee and to the extent the Property
          Trustee has funds available therefor) will be payable to the Holders
          as they appear on the books and records of the Trust on the first
          record date after the end of the Extension Period. Prior to the
          termination of any such Extension Period, the Debenture Issuer may
          further defer payments of interest by further extending such Extension
          Period; provided that such Extension Period, together with all such
          previous and further extensions within such Extension Period, may not
          exceed 20 consecutive quarterly periods, including the first quarterly
          period during such Extension Period, or extend beyond the Maturity
          Date of the Debentures. Upon the termination of any Extension Period
          and the payment of all amounts then due, the Debenture Issuer may
          commence a new Extension Period, subject to the above requirements.

                    (c)  Distributions on the Securities will be payable to
          the Holders thereof as they appear on the books and records of
          the Trust on the [first day of the month in which] the relevant
          Distribution Date occurs, which Distribution Dates correspond to
          the interest payment dates on the Debentures.  Subject to any
          applicable laws and regulations and the provisions of the
          Declaration, each such payment in respect of the Capital
          Securities will be made as described under the heading
          "Description of Capital Securities -- Form, Denomination, Book-
          Entry Procedures and Transfer" in the Prospectus dated _______,
          1997, of the Debenture Issuer and the Trust relating to the
          Securities and the Debentures.  The relevant record dates for the
          Common Securities shall be the same as the record dates for the
          Capital Securities.  Distributions payable on any Securities that
          are not punctually paid on any Distribution Date, as a result of
          the Debenture Issuer having failed to make a payment under the
          Debentures, will cease to be payable to the Holder on the
          relevant record date, and such defaulted Distribution will
          instead be payable to the Person in whose name such Securities
          are registered on the special record date or other specified date
          determined in accordance with the Indenture.

                    (d)  The Bank of New York shall act as Calculation
          Agent to determine LIBOR and calculate the Distribution Rate of,
          and the amount of Distributions payable on, the Securities for
          each Distribution Period pursuant to the terms set forth herein
          and in the Securities.

                    (e)  In the event that there is any money or other
          property held by or for the Trust that is not accounted for
          hereunder, such property shall be distributed Pro Rata (as
          defined herein) among the Holders of the Securities.

                                      I-3
<PAGE>
 
                    3.   Liquidation Distribution Upon Dissolution.

                    In the event of any termination of the Trust or the
          Sponsor otherwise gives notice of its election to liquidate the
          Trust pursuant to Section 8.1(a)(iii) of the Declaration, the
          Trust shall be liquidated by the Administrative Trustees as
          expeditiously as the Administrative Trustees determine to be
          possible by distributing, after satisfaction of liabilities to
          creditors of the Trust as provided by applicable law, to the
          Holders of the Securities a Like Amount (as defined below) of the
          Debentures, unless such distribution is determined by the
          Property Trustee not to be practicable, in which event such
          Holders will be entitled to receive out of the assets of the
          Trust legally available for distribution to Holders, after
          satisfaction of liabilities to creditors of the Trust as provided
          by applicable law, an amount equal to the aggregate of the
          liquidation amount of $1,000 per Security plus accumulated and
          unpaid Distributions thereon to the date of payment (such amount
          being the "Liquidation Distribution").

                    "Like Amount" means (i) with respect to a redemption of
          the Securities, Securities having a Liquidation Amount equal to
          the principal amount of Debentures to be paid in accordance with
          their terms and (ii) with respect to a distribution of Debentures
          upon the liquidation of the Trust, Debentures having a principal
          amount equal to the Liquidation Amount of the Securities of the
          Holder to whom such Debentures are distributed.

                    If, upon any such liquidation, the Liquidation
          Distribution can be paid only in part because the Trust has
          insufficient assets on hand legally available to pay in full the
          aggregate Liquidation Distribution, then the amounts payable
          directly by the Trust on the Securities shall be paid on a Pro
          Rata basis.

                    4.   Redemption and Distribution.

                   (a)   Upon the repayment of the Debentures in whole or
          in part, at maturity or upon early redemption in accordance with
          the terms thereof, the proceeds from such repayment shall be
          simultaneously applied by the Property Trustee (subject to the
          Property Trustee having received notice no later than 45 days
          prior to such repayment) to redeem a Like Amount of the
          Securities at a redemption price equal to (i) in the case of the
          repayment of the Debentures at maturity, the Maturity Redemption
          Price (as defined below), (ii) in the case of the optional
          redemption of the Debentures upon the occurrence and continuation
          of a Special Event, the Early Redemption Price (as defined below)
          and (iii) in the case of the optional redemption of the
          Debentures other than as a result of the occurrence and
          continuance of a Special Event, the Early Redemption Price.  The
          Maturity Redemption Price and the Early Redemption Price are
          referred to collectively as the "Redemption Price".  Holders will
          be given 

                                      I-4
<PAGE>
 
          not less than 30 nor more than 60 days notice of such redemption.

                   (b)  (i)  "Maturity Redemption Price" shall mean a price
          equal to 100% of the Liquidation Amount of the Securities to be
          redeemed plus accumulated and unpaid Distributions thereon, if
          any, to the date of redemption.

                    (ii)  Early Redemption Price" shall mean a price equal
          to 100% of the Liquidation Amount of the Securities to be
          redeemed plus accumulated and unpaid Distributions thereon, if
          any, to the date of redemption.

                    (c)  On and from the date fixed by the Administrative
          Trustees for any distribution of Debentures and liquidation of
          the Trust:  (i) the Securities will no longer be deemed to be
          outstanding, (ii) the Clearing Agency or its nominee (or any
          successor Clearing Agency or its nominee), as the Holder of the
          Capital Securities, will receive a registered global certificate
          or certificates representing the Debentures to be delivered upon
          such distribution and any certificates representing Securities
          not held by the Clearing Agency or its nominee (or any successor
          Clearing Agency or its nominee) will be deemed to represent
          beneficial interests in a Like Amount of Debentures until such
          certificates are presented to the Debenture Issuer or its agent
          for transfer or reissue.

                    (d)  The Trust may not redeem fewer than all the
          outstanding Securities unless all accumulated and unpaid
          Distributions have been paid on all Securities for all quarterly
          Distribution periods terminating on or before the date of
          redemption.

                    (e)  The procedure with respect to redemptions or
          distributions of Debentures shall be as follows:

                    (i)  Notice of any redemption of, or notice of
               distribution of Debentures in exchange for, the Securities
               (a "Redemption/Distribution Notice") will be given by the
               Trust by mail to each Holder of Securities to be redeemed or
               exchanged not fewer than 30 nor more than 60 days before the
               date fixed for redemption or exchange thereof which, in the
               case of a redemption, will be the date fixed for redemption
               of the Debentures.  For purposes of the calculation of the
               date of redemption or exchange and the dates on which
               notices are given pursuant to this Section 4(f)(i), a
               Redemption/ Distribution Notice shall be deemed to be given
               on the day such notice is first mailed by first-class mail,
               postage prepaid, to Holders of Securities.  Each
               Redemption/Distribution Notice shall be addressed to the
               Holders of Securities at the address of each such Holder
               appearing in the books and records of the Trust.  No defect
               in the Redemption/Distribution Notice or in the mailing of
               either thereof with respect to any Holder shall affect the
               validity of the 

                                      I-5
<PAGE>
 
               redemption or exchange proceedings with respect to any other
               Holder.

                    (ii)  In the event that fewer than all the outstanding
               Securities are to be redeemed, the Securities to be redeemed
               shall be redeemed Pro Rata from each Holder of Capital
               Securities, it being understood that, in respect of Capital
               Securities registered in the name of and held of record by
               the Clearing Agency or its nominee (or any successor
               Clearing Agency or its nominee) or any nominee, the
               distribution of the proceeds of such redemption will be made
               to the Clearing Agency and disbursed by such Clearing Agency
               in accordance with the procedures applied by such agency or
               nominee.

                    (iii)  If Securities are to be redeemed and the Trust
               gives a Redemption/Distribution Notice, (which notice will
               be irrevocable), then (A) with respect to Capital Securities
               issued in book-entry form, by 12:00 noon, New York City
               time, on the redemption date, provided that the Debenture
               Issuer has paid the Property Trustee a sufficient amount of
               cash in connection with the related redemption or maturity
               of the Debentures by 10:00 a.m., New York City time, on the
               maturity date or the date of redemption, as the case
               requires, the Property Trustee will deposit irrevocably with
               the Clearing Agency or its nominee (or successor Clearing
               Agency or its nominee) funds sufficient to pay the
               applicable Redemption Price with respect to such Capital
               Securities and will give the Clearing Agency irrevocable
               instructions and authority to pay the Redemption Price to
               the relevant Clearing Agency Participants, and (B) with
               respect to Capital Securities issued in certificated form
               and Common Securities, provided that the Debenture Issuer
               has paid the Property Trustee a sufficient amount of cash in
               connection with the related redemption or maturity of the
               Debentures, the Property Trustee will pay the relevant
               Redemption Price to the Holders of such Securities by check
               mailed to the address of the relevant Holder appearing on
               the books and records of the Trust on the redemption date. 
               If a Redemption/Distribution Notice shall have been given
               and funds deposited as required, if applicable, then
               immediately prior to the close of business on the date of
               such deposit, or on the redemption date, as applicable,
               Distributions will cease to accumulate on the Securities so
               called for redemption and all rights of Holders of such
               Securities so called for redemption will cease, except the
               right of the Holders of such Securities to receive the
               Redemption Price, but without interest on such Redemption
               Price, and such Securities shall cease to be outstanding.

                    (iv)  Payment of accumulated and unpaid Distributions
               on the Redemption Date of the Securities will be subject to

                                      I-6
<PAGE>
 
               the rights of Holders of Securities on the close of business
               on a regular record date in respect of a Distribution Date
               occurring on or prior to such Redemption Date.

                    Neither the Administrative Trustees nor the Trust shall
          be required to register or cause to be registered the transfer of
          (i) any Securities beginning on the opening of business 15 days
          before the day of mailing of a notice of redemption or any notice
          of selection of Securities for redemption or (ii) any Securities
          selected for redemption except the unredeemed portion of any
          Security being redeemed.  If any date fixed for redemption of
          Securities is not a Business Day, then payment of the Redemption
          Price payable on such date will be made on the next succeeding
          day that is a Business Day (and without any interest or other
          payment in respect of any such delay), with the same force and
          effect as if made on such date fixed for redemption.  If payment
          of the Redemption Price in respect of any Securities is
          improperly withheld or refused and not paid either by the
          Property Trustee or by the Sponsor as guarantor pursuant to the
          relevant Securities Guarantee, Distributions on such Securities
          will continue to accumulate from the original redemption date to
          the actual date of payment, in which case the actual payment date
          will be considered the date fixed for redemption for purposes of
          calculating the Redemption Price.

                    (v)  Redemption/Distribution Notices shall be sent by
               the Property Trustee on behalf of the Trust to (A) in
               respect of the Capital Securities, the Clearing Agency or
               its nominee (or any successor Clearing Agency or its
               nominee) if the Global Certificates have been issued or, if
               Definitive Capital Security Certificates have been issued,
               to the Holder thereof, and (B) in respect of the Common
               Securities to the Holder thereof. 

                    (vi)  Subject to the foregoing and applicable law
               (including, without limitation, United States Federal
               securities laws and banking laws), provided the acquiror is
               not the Holder of the Common Securities or the obligor under
               the Indenture, the Sponsor or any of its subsidiaries may at
               any time and from time to time purchase outstanding Capital
               Securities by tender, in the open market or by private
               agreement.

                    5.   Voting Rights - Capital Securities. 

                    (a)  Except as provided under Sections 5(b) and 7 and
          as otherwise required by law and the Declaration, the Holders of
          the Capital Securities will have no voting rights.

                    (b)  So long as any Debentures are held by the Property
          Trustee, the Trustees shall not (i) direct the time, method and
          place of conducting any proceeding for any remedy available to

                                      I-7
<PAGE>
 
          the Debenture Trustee, or executing any trust or power conferred
          on such Debenture Trustee with respect to the Debentures, (ii)
          waive any past default that is waivable under Section 5.07 of the
          Indenture, (iii) exercise any right to rescind or annul a
          declaration of acceleration of the maturity of the principal of
          the Debentures or (iv) consent to any amendment, modification or
          termination of the Indenture or the Debentures, where such
          consent shall be required, without, in each case, obtaining the
          prior approval of the Holders of a majority in liquidation amount
          of all outstanding Capital Securities; provided, however, that
          where a consent under the Indenture would require the consent of
          each holder of Debentures affected thereby, no such consent shall
          be given by the Property Trustee without the prior approval of
          each Holder of the Capital Securities.  The Trustees shall not
          revoke any action previously authorized or approved by a vote of
          the Holders of the Capital Securities except by subsequent vote
          of such Holders.  The Property Trustee shall notify each Holder
          of Capital Securities of any notice of default with respect to
          the Debentures.  In addition to obtaining the foregoing approvals
          of such Holders of the Capital Securities, prior to taking any of
          the foregoing actions, the Trustees shall obtain an opinion of
          counsel experienced in such matters to the effect that the Trust
          will not be classified as an association taxable as a corporation
          for United States Federal income tax purposes on account of such
          action.

                    If an Event of Default under the Declaration has
          occurred and is continuing and such event is attributable to the
          failure of the Debenture Issuer to pay principal of or premium,
          if any, or interest on the Debentures on the date such principal,
          premium, if any, or interest is otherwise payable (or in the case
          of redemption, on the redemption date), then a Holder of Capital
          Securities may directly institute a proceeding for enforcement of
          payment to such Holder of the principal of or premium, if any, or
          interest on a Like Amount of Debentures (a "Direct Action") on or
          after the respective due date specified in the Debentures.  In
          connection with such Direct Action, the rights of the Common
          Securities Holder will be subrogated to the rights of such Holder
          of Capital Securities to the extent of any payment made by the
          Debenture Issuer to such Holder of Capital Securities in such
          Direct Action.  Except as provided in the second preceding
          sentence, the Holders of Capital Securities will not be able to
          exercise directly any other remedy available to the holders of
          the Debentures.

                    Any approval or direction of Holders of Capital
          Securities may be given at a separate meeting of Holders of
          Capital Securities convened for such purpose, at a meeting of all
          of the Holders of Securities in the Trust or pursuant to written
          consent.  The Property Trustees will cause a notice of any
          meeting at which Holders of Capital Securities are entitled to
          vote, or of any matter upon which action by written consent of
          such 

                                      I-8
<PAGE>
 
          Holders is to be taken, to be mailed to each Holder of record of
          Capital Securities. Each such notice will include a statement setting
          forth (i) the date of such meeting or the date by which such action is
          to be taken, (ii) a description of any resolution proposed for
          adoption at such meeting on which such Holders are entitled to vote or
          of such matter upon which written consent is sought and (iii)
          instructions for the delivery of proxies or consents.

                    No vote or consent of the Holders of the Capital
          Securities will be required for the Trust to redeem and cancel
          Capital Securities or to distribute the Debentures in accordance
          with the Declaration and the terms of the Securities.

                    Notwithstanding that Holders of Capital Securities are
          entitled to vote or consent under any of the circumstances
          described above, any of the Capital Securities that are owned by
          the Sponsor or any Affiliate of the Sponsor shall not be entitled
          to vote or consent and shall, for purposes of such vote or
          consent, be treated as if they were not outstanding.

                    6.   Voting Rights - Common Securities.

                    (a)  Except as provided under Sections 6(b), 6(c), and
          7 as otherwise required by law and the Declaration, the Holders
          of the Common Securities will have no voting rights.

                    (b)  Unless a Debenture Event of Default shall have
          occurred and be continuing, any Trustee may be removed at any
          time by the holder of the Common Securities.  If a Debenture
          Event of Default has occurred and is continuing, the Property
          Trustee and the Delaware Trustee may be removed at such time by
          the holders of a majority in liquidation amount of the
          outstanding Capital Securities.  In no event will the holders of
          the Capital Securities have the right to vote to appoint, remove
          or replace the Administrative Trustees, which voting rights are
          vested exclusively in the Sponsor as the holder of the Common
          Securities.  No resignation or removal of a Trustee and no
          appointment of a successor trustee shall be effective until the
          acceptance of appointment by the successor trustee in accordance
          with the provisions of the Declaration. 

                    (c)  So long as any Debentures are held by the Property
          Trustee, the Trustees shall not (i) direct the time, method and
          place of conducting any proceeding for any remedy available to
          the Debenture Trustee, or executing any trust or power conferred
          on such Debenture Trustee with respect to the Debentures, (ii)
          waive any past default that is waivable under Section 5.07 of the
          Indenture, (iii) exercise any right to rescind or annul a
          declaration of acceleration of the maturity of the principal of
          the Debentures or (iv) consent to any amendment, modification or
          termination of the Indenture or the Debentures, where such

                                      I-9
<PAGE>
 
          consent shall be required, without, in each case, obtaining the
          prior approval of the Holders of a majority in liquidation amount
          of all outstanding Common Securities; provided, however, that
          where a consent under the Indenture would require the consent of
          each holder of Debentures affected thereby, no such consent shall
          be given by the Property Trustee without the prior approval of
          each Holder of the Common Securities.  The Trustees shall not
          revoke any action previously authorized or approved by a vote of
          the Holders of the Common Securities except by subsequent vote of
          such Holders.  The Property Trustee shall notify each Holder of
          Common Securities of any notice of default with respect to the
          Debentures.  In addition to obtaining the foregoing approvals of
          such Holders of the Common Securities, prior to taking any of the
          foregoing actions, the Trustees shall obtain an opinion of
          counsel experienced in such matters to the effect that the Trust
          will not be classified as an association taxable as a corporation
          for United States Federal income tax purposes on account of such
          action.

                    If an Event of Default under the Declaration has
          occurred and is continuing and such event is attributable to the
          failure of the Debenture Issuer to pay principal of or premium,
          if any, or interest on the Debentures on the date such principal,
          premium, if any, or interest is otherwise payable (or in the case
          of redemption, on the redemption date), then a Holder of Common
          Securities may institute a Direct Action for enforcement of
          payment to such Holder of the principal of or premium, if any, or
          interest on a Like Amount of Debentures on or after the
          respective due date specified in the Debentures.  In connection
          with Direct Action, the rights of the Common Securities Holder
          will be subordinated to the rights of such Holder of Capital
          Securities to the extent of any payment made by the Debenture
          Issuer to such Holder of Common Securities in such Direct Action. 
          Except as provided in the second preceding sentence, the Holders
          of Common Securities will not be able to exercise directly any
          other remedy available to the holders of the Debentures.

                    Any approval or direction of Holders of Common
          Securities may be given at a separate meeting of Holders of
          Common Securities convened for such purpose, at a meeting of all
          of the Holders of Securities in the Trust or pursuant to written
          consent.  The Administrative Trustees will cause a notice of any
          meeting at which Holders of Common Securities are entitled to
          vote, or of any matter upon which action by written consent of
          such Holders is to be taken, to be mailed to each Holder of
          record of Common Securities.  Each such notice will include a
          statement setting forth (i) the date of such meeting or the date
          by which such action is to be taken, (ii) a description of any
          resolution proposed for adoption at such meeting on which such
          Holders are entitled to vote or of such matter upon which written
          consent is sought and (iii) instructions for the delivery of
          proxies or consents.

                                      I-10
<PAGE>
 
                    No vote or consent of the Holders of the Common
          Securities will be required for the Trust to redeem and cancel
          Common Securities or to distribute the Debentures in accordance
          with the Declaration and the terms of the Securities.

                    7.   Amendments to Declaration and Indenture.

                    In addition to the requirements set out in Section 12.1
          of the Declaration, the Declaration may be amended from time to
          time by the Sponsor, the Property Trustee and the Administrative
          Trustees, without the consent of the Holders of the Securities
          (i) to cure any ambiguity, correct or supplement any provisions
          in the Declaration that may be inconsistent with any other
          provisions, or to make any other provisions with respect to
          matters or questions arising under the Declaration which shall
          not be inconsistent with the other provisions of the Declaration,
          or (ii) to modify, eliminate or add to any provisions of the
          Declaration to such extent as shall be necessary to ensure that
          the Trust will be classified for United States Federal income tax
          purposes as a grantor trust at all times that any Securities are
          outstanding or to ensure that the Trust will not be required to
          register as an "Investment Company" under the Investment Company
          Act; provided, however, that in the case of clause (i), such
          action shall not adversely affect in any material respect the
          interests of any Holder of Securities, and any amendments of the
          Declaration shall become effective when notice thereof is given
          to the holders of the Securities.  The Declaration may be amended
          by the Trustees and the Sponsor with (i) the consent of Holders
          representing a majority in liquidation amount of all outstanding
          Securities, and (ii) receipt by the Trustees of an Opinion of
          Counsel to the effect that such amendment or the exercise of any
          power granted to the Trustees in accordance with such amendment
          will not affect the Trust's status as a grantor trust for United
          States Federal income tax purposes or the Trust's exemption from
          status as an Investment Company under the Investment Company Act,
          provided that, without the consent of each Holder of Trust
          Securities, the Declaration may not be amended to (i) change the
          amount or timing of any Distribution on the Trust Securities or
          otherwise adversely affect the amount of any Distribution
          required to be made in respect of the Trust Securities as of a
          specified date or (ii) restrict the right of a holder of Trust
          Securities to institute suit for the enforcement of any such
          payment on or after such date.

                    8.   Pro Rata.

                    A reference in these terms of the Securities to any
          payment, distribution or treatment as being "Pro Rata" shall mean
          pro rata to each Holder of Securities according to the aggregate
          liquidation amount of the Securities held by the relevant Holder
          in relation to the aggregate liquidation amount of all Securities
          outstanding unless, in relation to a payment, an Event of Default

                                      I-11
<PAGE>
 
          under the Declaration has occurred and is continuing, in which
          case any funds available to make such payment shall be paid first
          to each Holder of the Capital Securities pro rata according to
          the aggregate liquidation amount of Capital Securities held by
          the relevant Holder relative to the aggregate liquidation amount
          of all Capital Securities outstanding, and only after
          satisfaction of all amounts owed to the Holders of the Capital
          Securities, to each Holder of Common Securities pro rata
          according to the aggregate liquidation amount of Common
          Securities held by the relevant Holder relative to the aggregate
          liquidation amount of all Common Securities outstanding.

                    9.   Ranking.

                    The Capital Securities rank pari passu with the Common
          Securities and payment thereon shall be made Pro Rata with the
          Common Securities, except that, if an Event of Default under the
          Declaration occurs and is continuing, no payments in respect of
          Distributions on, or payments upon liquidation, redemption or
          otherwise with respect to, the Common Securities shall be made
          until the Holders of the Capital Securities shall be paid in full
          the Distributions, Redemption Price, Liquidation Distribution and
          other payments to which they are entitled at such time.

                    10.  Acceptance of Securities Guarantee and Indenture.

                    Each Holder of Capital Securities and Common
          Securities, by the acceptance thereof, agrees to the provisions
          of the Capital Securities Guarantee and the Common Securities
          Guarantee, respectively, including the subordination provisions
          therein and to the provisions of the Indenture.

                    11.  No Preemptive Rights.

                    The Holders of the Securities shall have no preemptive
          rights to subscribe for any additional securities.

                    12.  Miscellaneous.

                    These terms constitute a part of the Declaration.

                    The Sponsor will provide a copy of the Declaration, the
          Capital Securities Guarantee or the Common Securities Guarantee
          (as may be appropriate), the Indenture (including any
          supplemental indenture) to a Holder without charge on written
          request to the Sponsor at its principal place of business.

                                      I-12
<PAGE>
 
                                     EXHIBIT A-1

                         FORM OF CAPITAL SECURITY CERTIFICATE

                              [FORM OF FACE OF SECURITY]

                    [IF THIS CAPITAL SECURITY IS A GLOBAL CAPITAL SECURITY,
          INSERT:  THIS CAPITAL SECURITY IS A GLOBAL CAPITAL SECURITY
          WITHIN THE MEANING OF THE DECLARATION HEREINAFTER REFERRED TO AND
          IS REGISTERED IN THE NAME OF THE DEPOSITORY TRUST COMPANY (THE
          "CLEARING AGENCY") OR A NOMINEE OF THE CLEARING AGENCY.  THIS
          CAPITAL SECURITY IS EXCHANGEABLE FOR CAPITAL SECURITIES
          REGISTERED IN THE NAME OF A PERSON OTHER THAN THE CLEARING AGENCY
          OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE
          DECLARATION AND NO TRANSFER OF THIS CAPITAL SECURITY (OTHER THAN
          A TRANSFER OF THIS CAPITAL SECURITY AS A WHOLE BY THE CLEARING
          AGENCY TO A NOMINEE OF THE CLEARING AGENCY OR BY A NOMINEE OF THE
          CLEARING AGENCY TO THE CLEARING AGENCY OR ANOTHER NOMINEE OF THE
          CLEARING AGENCY) MAY BE REGISTERED EXCEPT IN LIMITED
          CIRCUMSTANCES.

                    UNLESS THIS CAPITAL SECURITY IS PRESENTED BY AN
          AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (55
          WATER STREET, NEW YORK, NEW YORK) TO THE TRUST OR ITS AGENT FOR
          REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CAPITAL
          SECURITY ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH
          OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE
          DEPOSITORY TRUST COMPANY AND ANY PAYMENT HEREON IS MADE TO CEDE &
          CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
          OTHERWISE BY A PERSON IS WRONGFUL SINCE THE REGISTERED OWNER
          HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.]

                    THIS SECURITY IS NOT A SAVINGS OR DEPOSIT ACCOUNT OR
          OTHER OBLIGATION OF A BANK AND IS NOT INSURED BY THE FEDERAL
          DEPOSIT INSURANCE CORPORATION OR ANY OTHER GOVERNMENTAL AGENCY.

                                     A1-1
<PAGE>
 
          Certificate Number                   Number of Capital Securities

                                                       CUSIP NO. __________

                    Certificate Evidencing Capital Securities

                                          of

                             BANKBOSTON CAPITAL TRUST III

                           Floating Rate Capital Securities
                   (liquidation amount $1,000 per Capital Security)

                    BANKBOSTON CAPITAL TRUST III, a statutory business
          trust formed under the laws of the State of Delaware (the
          "Trust"), hereby certifies that ______________ (the "Holder") is
          the registered owner of __________ securities of the Trust
          representing undivided beneficial interests in the assets of the
          Trust designated the Floating Rate Capital Securities
          (liquidation amount $1,000 per Capital Security) (the "Capital
          Securities").  The Capital Securities are transferable on the
          books and records of the Trust, in person or by a duly authorized
          attorney, upon surrender of this certificate duly endorsed and in
          proper form for transfer.  The designation, rights, privileges,
          restrictions, preferences and other terms and provisions of the
          Capital Securities represented hereby are issued and shall in all
          respects be subject to the provisions of the Amended and Restated
          Declaration of Trust of the Trust dated as of _______, 1997, as
          the same may be amended from time to time (the "Declaration"),
          including the designation of the terms of the Capital Securities
          as set forth in Annex I to the Declaration.  Capitalized terms
          used but not defined herein shall have the meaning given them in
          the Declaration.  The Sponsor will provide a copy of the
          Declaration, the Capital Securities Guarantee and the Indenture
          to a Holder without charge upon written request to the Trust at
          its principal place of business.

                    Upon receipt of this certificate, the Holder is bound
          by the Declaration and is entitled to the benefits thereunder and
          to the benefits of the Capital Securities Guarantee to the extent
          provided therein.

                    By acceptance, the Holder agrees to treat, for United
          States Federal income tax purposes, the Debentures as
          indebtedness and the Capital Securities as evidence of indirect
          beneficial ownership in the Debentures.

                                     A1-2
<PAGE>
 
                    IN WITNESS WHEREOF, the Trust has executed this
          certificate this ____ day of __________, ____.

                                        BANKBOSTON CAPITAL TRUST III

                                        By:________________________________
                                           Name:
                                           Administrative Trustee

                    PROPERTY TRUSTEE'S CERTIFICATE OF AUTHENTICATION

                    This is one of the Capital Securities referred to in
          the within-mentioned Declaration.

          Dated:              ,    

                                             THE BANK OF NEW YORK,
                                             as Property Trustee

                                             By:                      
                                                  Authorized Signatory

                                     A1-3
<PAGE>
 
                            [FORM OF REVERSE OF SECURITY]

                    Distributions on each Capital Security will be payable
          at a rate per annum equal to LIBOR plus ____% (the "Distribution
          Rate") of the stated Liquidation Amount of $1,000 per Capital
          Security, such rate being the rate of interest payable on the
          Debentures to be held by the Property Trustee.  LIBOR and the
          amount payable in respect of a Distribution for a Distribution
          Period will be calculated by the Calculation Agent in the same
          manner as LIBOR and the interest payable in respect of each
          Interest Period for the Debentures, as set forth in the
          Indenture.  Distributions in arrears for more than one quarterly
          period will bear additional distributions thereon compounded
          quarterly at the applicable periodic Distribution Rate (to the
          extent permitted by applicable law).  The term "Distributions",
          as used herein, includes any such additional distributions unless
          otherwise stated.  A Distribution is payable only to the extent
          that payments are made in respect of the Debentures held by the
          Property Trustee and to the extent the Property Trustee has funds
          on hand legally available therefor.

                    Distributions on the Capital Securities will be
          cumulative, will accumulate from the most recent date to which
          Distributions have been paid or, if no Distributions have been
          paid, from _______, 1997, to but excluding the related
          Distribution Date (as defined herein) and will be payable
          quarterly in arrears on _______, _______, _______, and _______ of
          each year, commencing on _______, 1997 (each, a "Distribution
          Date"), except as otherwise described below and in the
          Declaration.  The amount of Distributions payable for any
          Distribution Period will be computed on the basis of the actual
          number of days elapsed in such period and a year of 360 days. 
          "Distribution Period" means the period from and including a
          Distribution Date (or _______, 1997, in the case of the first
          Distribution Period) to but excluding the next Distribution Date. 
          If a Distribution Date is not a Business Day, then such
          Distribution Date and the first day of the next succeeding
          Distribution Period will be the next succeeding Business Day,
          except if such Business Day is in the next succeeding calendar
          month, such Distribution Date and the first day of the next
          succeeding Distribution Period will be the immediately preceding
          Business Day.  As long as no Event of Default has occurred and is
          continuing under the Indenture, the Debenture Issuer has the
          right under the Indenture to defer payments of interest by
          extending the interest payment period at any time and from time
          to time on the Debentures for a period not exceeding 20
          consecutive quarterly periods, including the first such quarterly
          period during such period (each an "Extension Period"), during
          which Extension Period no interest shall be due and payable on
          the Debentures, provided that no Extension Period shall extend
          beyond the Maturity Date of the Debentures.  As a consequence of
          such deferral, Distributions will also be deferred.  Despite such
          deferral, quarterly Distributions will con-

                                     A1-4
<PAGE>
 
          tinue to accumulate with additional interest thereon (to the extent
          permitted by applicable law but not at a rate greater than the rate at
          which interest is then accruing on the Debentures) at the Distribution
          Rate then in effect compounded quarterly during any such Extension
          Period. At the end of the Extension Period, all accrued and unpaid
          Distributions (but only to the extent payments are made in respect of
          the Debentures held by the Property Trustee and to the extent the
          Property Trustee has funds available therefor) will be payable to the
          Holders as they appear on the books and records of the Trust on the
          first record date after the end of the Extension Period. Prior to the
          termination of any such Extension Period, the Debenture Issuer may
          further defer payments of interest by further extending such Extension
          Period; provided that such Extension Period, together with all such
          previous and further extensions within such Extension Period, may not
          exceed 20 consecutive quarterly periods, including the first quarterly
          period during such Extension Period, or extend beyond the Maturity
          Date of the Debentures. Upon the termination of any Extension Period
          and the payment of all amounts then due, the Debenture Issuer may
          commence a new Extension Period, subject to the above requirements.

                    Subject to the prior approval of the Federal Reserve
          Board if such approval is then required under applicable law or
          capital guidelines or policies of the Federal Reserve Board and
          to certain other conditions set forth in the Declaration and the
          Indenture, the Property Trustee may, at the direction of the
          Sponsor, at any time liquidate the Trust and cause the Debentures
          to be distributed to the holders of the Securities in liquidation
          of the Trust or, simultaneous with any redemption of the
          Debentures, cause a Like Amount of the Securities to be redeemed
          by the Trust.

                    The Capital Securities shall be redeemable as provided
          in the Declaration.

                                     A1-5
<PAGE>
 
                                _____________________

                                      ASSIGNMENT

          FOR VALUE RECEIVED, the undersigned assigns and transfers this
          Capital Security Certificate to:
          _________________________________________________________________
          _________________________________________________________________
          _________________________________________________________________
           (Insert assignee's social security or tax identification number)

          _________________________________________________________________
          _________________________________________________________________
          _________________________________________________________________
          _________________________________________________________________
                      (Insert address and zip code of assignee)

          and irrevocably appoints
          _________________________________________________________________
          _________________________________________________________________
          ___________________________________________________________ agent
          to transfer this Capital Security Certificate on the books of the
          Trust.  The agent may substitute another to act for him or her.

          Date: _______________________

          Signature: __________________
          (Sign exactly as your name appears on the other side of this
          Capital Security Certificate)

          Signature Guarantee*:    ___________________________________

___________________________________

          *    Signature must be guaranteed by an "eligible guarantor
               institution" that is a bank, stockbroker, savings and loan
               association or credit union meeting the requirements of the
               Registrar, which requirements include membership or
               participation in the Securities Transfer Agents Medallion
               Program ("STAMP") or such other "signature guarantee
               program" as may be determined by the Registrar in addition
               to, or in substitution for, STAMP, all in accordance with
               the Securities and Exchange Act of 1934, as amended. 

                                     A1-6
<PAGE>
 
                                     EXHIBIT A-2

                         FORM OF COMMON SECURITY CERTIFICATE

                         THIS CERTIFICATE IS NOT TRANSFERABLE

          Certificate Number                    Number of Common Securities

                       Certificate Evidencing Common Securities

                                          of

                             BankBoston Capital Trust III

                           Floating Rate Common Securities
                   (liquidation amount $1,000 per Common Security)

                    BANKBOSTON CAPITAL TRUST III, a statutory business
          trust formed under the laws of the State of Delaware (the
          "Trust"), hereby certifies that BankBoston Corporation (the
          "Holder") is the registered owner of __________ common securities
          of the Trust representing undivided beneficial interests in the
          assets of the Trust designated the Floating Rate Common
          Securities (liquidation amount $1,000 per Common Security) (the
          "Common Securities").  The Common Securities are not
          transferable.  The designation, rights, privileges, restrictions,
          preferences and other terms and provisions of the Common
          Securities represented hereby are issued and shall in all
          respects be subject to the provisions of the Amended and Restated
          Declaration of Trust of the Trust dated as of _______, 1997, as
          the same may be amended from time to time (the "Declaration"),
          including the designation of the terms of the Common Securities
          as set forth in Annex I to the Declaration.  Capitalized terms
          used but not defined herein shall have the meaning given them in
          the Declaration.  The Sponsor will provide a copy of the
          Declaration, the Common Securities Guarantee and the Indenture
          (including any supplemental indenture) to a Holder without charge
          upon written request to the Sponsor at its principal place of
          business.

                    Upon receipt of this certificate, the Sponsor is bound
          by the Declaration and is entitled to the benefits thereunder and
          to the benefits of the Common Securities Guarantee to the extent
          provided therein.

                    By acceptance, the Holder agrees to treat, for United
          States Federal income tax purposes, the Debentures as
          indebtedness and the Common Securities as evidence of indirect
          beneficial ownership in the Debentures.

                                     A2-1
<PAGE>
 
                    THIS SECURITY IS NOT A SAVINGS OR DEPOSIT ACCOUNT OR
          OTHER OBLIGATION OF A BANK AND IS NOT INSURED BY THE FEDERAL
          DEPOSIT INSURANCE CORPORATION OR ANY OTHER GOVERNMENTAL AGENCY.

                    IN WITNESS WHEREOF, the Trust has executed this
          certificate this ___ day of             , ____.

                                        BANKBOSTON CAPITAL TRUST III

                                        By:________________________________
                                           Name:
                                           Administrative Trustee

                                     A2-2
<PAGE>
 
                            [FORM OF REVERSE OF SECURITY]

                    Distributions on each Common Security will be payable
          at a rate per annum equal to LIBOR plus ____% (the "Distribution
          Rate") of the stated Liquidation Amount of $1,000 per Common
          Security, such rate being the rate of interest payable on the
          Debentures to be held by the Property Trustee.  LIBOR and the
          amount payable in respect of a Distribution for a Distribution
          Period will be calculated by the Calculation Agent in the same
          manner as LIBOR and the interest payable in respect of each
          Interest Period for the Debentures, as set forth in the
          Indenture.  Distributions in arrears for more than one quarterly
          period will bear additional distributions thereon compounded
          quarterly at the applicable periodic Distribution Rate (to the
          extent permitted by applicable law).  The term "Distributions",
          as used herein, includes any such additional distributions unless
          otherwise stated.  A Distribution is payable only to the extent
          that payments are made in respect of the Debentures held by the
          Property Trustee and to the extent the Property Trustee has funds
          on hand legally available therefor.

                    Distributions on the Common Securities will be
          cumulative, will accumulate from the most recent date to which
          Distributions have been paid or, if no Distributions have been
          paid, from _______, 1997, to but excluding the related
          Distribution Date (as defined herein) and will be payable
          quarterly in arrears on _______, _______, _______, and _______ of
          each year, commencing on _______, 1997 (each, a "Distribution
          Date"), except as otherwise described below and in the
          Declaration.  The amount of Distributions payable for any
          Distribution Period will be computed on the basis of the actual
          number of days elapsed in such period and a year of 360 days. 
          "Distribution Period" means the period from and including a
          Distribution Date (or _______, 1997, in the case of the first
          Distribution Period) to but excluding the next Distribution Date. 
          If a Distribution Date is not a Business Day, then such
          Distribution Date and the first day of the next succeeding
          Distribution Period will be the next succeeding Business Day,
          except if such Business Day is in the next succeeding calendar
          month, such Distribution Date and the first day of the next
          succeeding Distribution Period will be the immediately preceding
          Business Day.  As long as no Event of Default has occurred and is
          continuing under the Indenture, the Debenture Issuer has the
          right under the Indenture to defer payments of interest by
          extending the interest payment period at any time and from time
          to time on the Debentures for a period not exceeding 20
          consecutive quarterly periods, including the first such quarterly
          period during such period (each an "Extension Period"), during
          which Extension Period no interest shall be due and payable on
          the Debentures, provided that no Extension Period shall extend
          beyond the Maturity Date of the Debentures.  As a consequence of
          such deferral, Distributions will also be deferred.  Despite such
          deferral, quarterly Distributions will continue to accumulate
          with additional interest thereon (to the extent permitted by
          applicable law but not at a rate greater than the rate at which
          interest is then accruing on the Debentures) at 

                                     A2-3
<PAGE>
 
          the Distribution Rate then in effect compounded quarterly during any
          such Extension Period. At the end of the Extension Period, all accrued
          and unpaid Distributions (but only to the extent payments are made in
          respect of the Debentures held by the Property Trustee and to the
          extent the Property Trustee has funds available therefor) will be
          payable to the Holders as they appear on the books and records of the
          Trust on the first record date after the end of the Extension Period.
          Prior to the termination of any such Extension Period, the Debenture
          Issuer may further defer payments of interest by further extending
          such Extension Period; provided that such Extension Period, together
          with all such previous and further extensions within such Extension
          Period, may not exceed 20 consecutive quarterly periods, including the
          first quarterly period during such Extension Period, or extend beyond
          the Maturity Date of the Debentures. Upon the termination of any
          Extension Period and the payment of all amounts then due, the
          Debenture Issuer may commence a new Extension Period, subject to the
          above requirements.

                    Subject to the prior approval of the Federal Reserve
          Board if such approval is then required under applicable law or
          capital guidelines or policies of the Federal Reserve Board and
          to certain other conditions set forth in the Declaration and the
          Indenture, the Property Trustee may, at the direction of the
          Sponsor, at any time liquidate the Trust and cause the Debentures
          to be distributed to the holders to the Securities in liquidation
          of the Trust or, simultaneous with any redemption of the
          Debentures, cause a Like Amount of the Securities to be redeemed
          by the Trust.

                    The Common Securities shall be redeemable as provided
          in the Declaration.

                                     A2-4

<PAGE>
 
                                                                     EXHIBIT 4.7


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

                    CAPITAL SECURITIES GUARANTEE AGREEMENT

                            BankBoston Corporation

                           Dated as of ______, 1997

                     ====================================
<PAGE>
 
                             TABLE OF CONTENTS

                                                                  Page

                                 ARTICLE I
                       DEFINITIONS AND INTERPRETATION

          SECTION 1.1  Definitions and Interpretation  . . . . . .   2

                                 ARTICLE II
                            TRUST INDENTURE ACT

          SECTION 2.1  Trust Indenture Act; Application  . . . . .   6
          SECTION 2.2  Lists of Holders of Securities  . . . . . .   6
          SECTION 2.3  Reports by the Capital Securities Guaran-
                       tee Trustee   . . . . . . . . . . . . . . .   6
          SECTION 2.4  Periodic Reports to Capital Securities
                       Guarantee Trustee   . . . . . . . . . . . .   7
          SECTION 2.5  Evidence of Compliance with Conditions
                       Precedent   . . . . . . . . . . . . . . . .   7
          SECTION 2.6  Events of Default; Waiver   . . . . . . . .   7
          SECTION 2.7  Event of Default; Notice  . . . . . . . . .   7
          SECTION 2.8  Conflicting Interests   . . . . . . . . . .   8

                                ARTICLE III
                        POWERS, DUTIES AND RIGHTS OF
                    CAPITAL SECURITIES GUARANTEE TRUSTEE

          SECTION 3.1  Powers and Duties of the Capital Securi-
                       ties Guarantee Trustee  . . . . . . . . . .   8
          SECTION 3.2  Certain Rights of Capital Securities
                       Guarantee Trustee   . . . . . . . . . . . .  10
          SECTION 3.3. Not Responsible for Recitals or Issuance
                       of Capital Securities Guarantee   . . . . .  13

                                 ARTICLE IV
                    CAPITAL SECURITIES GUARANTEE TRUSTEE

          SECTION 4.1  Capital Securities Guarantee Trustee;
                       Eligibility   . . . . . . . . . . . . . . .  13
          SECTION 4.2  Appointment, Removal and Resignation of
                       Capital Securities Guarantee Trustee  . . .  14

                                 ARTICLE V
                                 GUARANTEE

          SECTION 5.1  Guarantee   . . . . . . . . . . . . . . . .  15
          SECTION 5.2  Waiver of Notice and Demand   . . . . . . .  15
          SECTION 5.3  Obligations Not Affected  . . . . . . . . .  15
          SECTION 5.4  Rights of Holders   . . . . . . . . . . . .  16
          SECTION 5.5  Guarantee of Payment  . . . . . . . . . . .  17
<PAGE>
 
                                                                  Page

          SECTION 5.6  Subrogation   . . . . . . . . . . . . . . .  17
          SECTION 5.7  Independent Obligations   . . . . . . . . .  17

                                 ARTICLE VI
                 LIMITATION OF TRANSACTIONS; SUBORDINATION

          SECTION 6.1  Limitation of Transactions  . . . . . . . .  17
          SECTION 6.2  Ranking   . . . . . . . . . . . . . . . . .  18

                                ARTICLE VII
                                TERMINATION


          SECTION 7.1  Termination   . . . . . . . . . . . . . . .  19

                                ARTICLE VIII
                              INDEMNIFICATION

          SECTION 8.1  Exculpation   . . . . . . . . . . . . . . .  19
          SECTION 8.2  Indemnification   . . . . . . . . . . . . .  19

                                 ARTICLE IX
                               MISCELLANEOUS

          SECTION 9.1  Successors and Assigns  . . . . . . . . . .  20
          SECTION 9.2  Amendments  . . . . . . . . . . . . . . . .  20
          SECTION 9.3  Notices   . . . . . . . . . . . . . . . . .  20
          SECTION 9.4  Benefit   . . . . . . . . . . . . . . . . .  21
          SECTION 9.5  Governing Law   . . . . . . . . . . . . . .  22


                                      ii
<PAGE>
 
                   CAPITAL SECURITIES GUARANTEE AGREEMENT

               This GUARANTEE AGREEMENT (the "Capital Securities
     Guarantee"), dated as of ______, 1997, is executed and delivered
     by BankBoston Corporation, a Massachusetts corporation (the
     "Guarantor"), and The Bank of New York, a New York banking
     corporation, as trustee (the "Capital Securities Guarantee
     Trustee"), for the benefit of the Holders (as defined herein)
     from time to time of the Capital Securities (as defined herein)
     of BankBoston Capital Trust III, a statutory business trust
     formed under the laws of the State of Delaware (the "Issuer").

               WHEREAS, pursuant to an Amended and Restated Declara-
     tion of Trust (the "Declaration"), dated as of ______, 1997,
     among the trustees of the Issuer, the Guarantor, as sponsor, and
     the holders from time to time of undivided beneficial interests
     in the assets of the Issuer, the Issuer is issuing on the date
     hereof 250,000 capital securities, having an aggregate liquida-
     tion amount of $250,000,000, such capital securities being
     designated the Floating Rate Capital Securities (collectively,
     the "Capital Securities").

               WHEREAS, as incentive for the Holders to purchase the
     Capital Securities, the Guarantor desires irrevocably and uncon-
     ditionally to agree, to the extent set forth in this Capital
     Securities Guarantee, to pay to the Holders of the Capital
     Securities the Guarantee Payments (as defined below).  The
     Guarantor agrees to make certain other payments on the terms and
     conditions set forth herein. 

               WHEREAS, the Guarantor is executing and delivering a
     guarantee agreement (the "Common Securities Guarantee"), with
     substantially identical terms to this Capital Securities Guaran-
     tee, for the benefit of the holders of the Common Securities (as
     defined herein), except that if an Event of Default (as defined
     in the Declaration) has occurred and is continuing, the rights of
     holders of the Common Securities to receive Guarantee Payments
     under the Common Securities Guarantee are subordinated, to the
     extent and in the manner set forth in the Common Securities
     Guarantee, to the rights of holders of Capital Securities to
     receive Guarantee Payments under this Capital Securities Guaran-
     tee.

               NOW, THEREFORE, in consideration of the purchase by
     each Holder of Capital Securities, which purchase the Guarantor
     hereby acknowledges shall benefit the Guarantor, the Guarantor
     executes and delivers this Capital Securities Guarantee for the
     benefit of the Holders. 
<PAGE>
 
                                 ARTICLE I
                       DEFINITIONS AND INTERPRETATION

     SECTION 1.1    Definitions and Interpretation

               In this Capital Securities Guarantee, unless the
     context otherwise requires:

               (a)  Capitalized terms used in this Capital Securities 
                    Guarantee but not defined in the preamble above
                    have the respective meanings assigned to them in
                    this Section 1.1; 

               (b)  Terms defined in the Declaration as at the date of
                    execution of this Capital Securities Guarantee
                    have the same meaning when used in this Capital
                    Securities Guarantee unless otherwise defined in
                    this Capital Securities Guarantee;

               (c)  a term defined anywhere in this Capital Securities 
                    Guarantee has the same meaning throughout;

               (d)  all references to "the Capital Securities Guaran-
                    tee" or "this Capital Securities Guarantee" are to
                    this Capital Securities Guarantee as modified,
                    supplemented or amended from time to time;

               (e)  all references in this Capital Securities Guaran-
                    tee to Articles and Sections are to Articles and
                    Sections of this Capital Securities Guarantee,
                    unless otherwise specified;

               (f)  a term defined in the Trust Indenture Act has the
                    same meaning when used in this Capital Securities 
                    Guarantee, unless otherwise defined in this Capi-
                    tal Securities Guarantee or unless the context
                    otherwise requires; and

               (g)  a reference to the singular includes the plural
                    and vice versa.

               "Affiliate" has the same meaning as given to that term
     in Rule 405 under the Securities Act of 1933, as amended, or any
     successor rule thereunder.

               "Business Day" means any day other than a Saturday or a
     Sunday, or a day on which banking institutions in The City of New
     York or Boston, Massachusetts are authorized or required by law
     or executive order to close. 

               "Capital Securities Guarantee Trustee" means The Bank
     of New York, a New York banking corporation, until a Successor

                                       2
<PAGE>
 
     Capital Securities Guarantee Trustee has been appointed and has
     accepted such appointment pursuant to the terms of this Capital
     Securities Guarantee and thereafter means each such Successor
     Capital Securities Guarantee Trustee.

               "Common Securities" means the securities representing
     common undivided beneficial interests in the assets of the
     Issuer. 

               "Corporate Trust Office" means the office of the
     Capital Securities Guarantee Trustee at which the corporate trust
     business of the Capital Securities Guarantee Trustee shall, at
     any particular time, be principally administered, which office at
     the date of execution of this Agreement is located at 101 Barclay
     Street, 21 West, New York, New York 10286.

               "Covered Person" means any Holder or beneficial owner
     of Capital Securities. 

               "Debentures" means the series of junior subordinated
     debt securities of the Guarantor designated the Floating Rate
     Junior Subordinated Deferrable Interest Debentures due ______,
     2027 held by the Property Trustee (as defined in the Declaration)
     of the Issuer.

               "Event of Default" means a default by the Guarantor on
     any of its payment or other obligations under this Capital
     Securities Guarantee. 

               "Guarantee Payments" means the following payments or
     distributions, without duplication, with respect to the Capital
     Securities, to the extent not paid or made by the Issuer:  (i)
     any accumulated and unpaid Distributions (as defined in the
     Declaration) that are required to be paid on such Capital Securi-
     ties, to the extent the Issuer has funds on hand legally avail-
     able therefor at such time, (ii) the redemption price, including
     all accumulated and unpaid Distributions to the date of redemp-
     tion (the "Redemption Price"), to the extent the Issuer has funds
     on hand legally available therefor at such time, with respect to
     any Capital Securities called for redemption by the Issuer, and
     (iii) upon a voluntary or involuntary termination and liquidation
     of the Issuer (other than in connection with the distribution of
     Debentures to the Holders in exchange for Capital Securities as
     provided in the Declaration), the lesser of (a) the aggregate of
     the liquidation amount and all accumulated and unpaid Distribu-
     tions on the Capital Securities to the date of payment, to the
     extent the Issuer has funds on hand legally available therefor at
     such time, and (b) the amount of assets of the Issuer remaining
     available for distribution to Holders in liquidation of the
     Issuer (in either case, the "Liquidation Distribution").  If an
     Event of Default has occurred and is continuing, no Guarantee
     Payments under the Common Securities Guarantee with respect to

                                       3
<PAGE>
 
     the Common Securities or any guarantee payment under any Other
     Common Securities Guarantees shall be made until the Holders of
     Capital Securities shall be paid in full the Guarantee Payments
     to which they are entitled under this Capital Securities Guaran-
     tee.

               "Holder" shall mean any holder, as registered on the
     books and records of the Issuer, of any Capital Securities;
     provided, however, that, in determining whether the holders of
     the requisite percentage of Capital Securities have given any
     request, notice, consent or waiver hereunder, "Holder" shall not
     include the Guarantor or any Affiliate of the Guarantor. 

               "Indemnified Person" means the Capital Securities
     Guarantee Trustee, any Affiliate of the Capital Securities
     Guarantee Trustee, or any officers, directors, shareholders,
     members, partners, employees, representatives, nominees, custodi-
     ans or agents of the Capital Securities Guarantee Trustee.

               "Indenture" means the Indenture dated as of ______,
     1997, among the Guarantor (the "Debenture Issuer") and The Bank
     of New York, as trustee, pursuant to which the Debentures are to
     be issued to the Property Trustee of the Issuer.

               "Majority in liquidation amount of the Capital Securi-
     ties" means, except as provided by the Trust Indenture Act, a
     vote by Holder(s) of Capital Securities, voting separately as a
     class, of more than 50% of the aggregate liquidation amount
     (including the amount payable on redemption, liquidation or
     otherwise, plus accumulated and unpaid Distributions to the date
     upon which the voting percentages are determined) of all Capital
     Securities.

               "Officers' Certificate" means, with respect to any
     person, a certificate signed by the Chairman, a Vice Chairman,
     the Chief Executive Officer, the President, a Vice President, the
     Comptroller, the Executive Director, Global Treasury, the Clerk
     or an Assistant Clerk, the Secretary or an Assistant Secretary of
     the Guarantor.  Any Officers' Certificate delivered with respect
     to compliance with a condition or covenant provided for in this
     Capital Securities Guarantee shall include:

               (a)  a statement that each officer signing the
          Officers' Certificate has read the covenant or condition and
          the definitions relating thereto;

               (b)  a statement that each such officer has made such
          examination or investigation as, in such officer's opinion,
          is necessary to enable such officer to express an informed
          opinion as to whether or not such covenant or condition has
          been complied with; and

                                       4
<PAGE>
 
               (c)  a statement as to whether, in the opinion of each
          such officer, such condition or covenant has been complied
          with.

               "Other Common Securities Guarantees" shall have the
     same meaning as "Other Guarantees" in the Common Securities
     Guarantee.

               "Other Debentures" means all junior subordinated
     debentures issued by the Guarantor from time to time and sold to
     trusts established by the Guarantor, in each case similar to the
     Issuer.

               "Other Guarantees" means all guarantees issued by the
     Guarantor with respect to capital securities similar to the
     Capital Securities issued by other trusts established by the
     Guarantor, in each case similar to the Issuer.

               "Person" means a legal person, including any individu-
     al, corporation, estate, partnership, joint venture, association,
     joint stock company, limited liability company, trust, unincorpo-
     rated association, or government or any agency or political
     subdivision thereof, or any other entity of whatever nature.

               "Responsible Officer" means, with respect to the
     Capital Securities Guarantee Trustee, any officer within the
     Corporate Trust Office of the Capital Securities Guarantee
     Trustee, including any vice president, any assistant vice presi-
     dent, any assistant secretary, any assistant treasurer or other
     officer of the Corporate Trust Office of the Capital Securities
     Guarantee Trustee customarily performing functions similar to
     those performed by any of the above designated officers and also
     means, with respect to a particular corporate trust matter, any
     other officer to whom such matter is referred because of that
     officer's knowledge of and familiarity with the particular
     subject.

               "Successor Capital Securities Guarantee Trustee" means
     a successor Capital Securities Guarantee Trustee possessing the
     qualifications to act as Capital Securities Guarantee Trustee
     under Section 4.1.

               "Trust Indenture Act" means the Trust Indenture Act of
     1939, as amended.

               "Trust Securities" means the Common Securities and the
     Capital Securities, collectively.

                                       5
<PAGE>
 
                                 ARTICLE II
                            TRUST INDENTURE ACT

     SECTION 2.1    Trust Indenture Act; Application

               (a)  This Capital Securities Guarantee is subject to
     the provisions of the Trust Indenture Act that are required to be
     part of this Capital Securities Guarantee and shall, to the
     extent applicable, be governed by such provisions.

               (b)  If and to the extent that any provision of this
     Capital Securities Guarantee limits, qualifies or conflicts with
     the duties imposed by Section 310 to 317, inclusive, of the Trust
     Indenture Act, such imposed duties shall control.

     SECTION 2.2    Lists of Holders of Securities

               (a)  The Guarantor shall provide the Capital Securities
     Guarantee Trustee (unless the Capital Securities Guarantee
     Trustee is otherwise the registrar of the Capital Securities)
     with a list, in such form as the Capital Securities Guarantee
     Trustee may reasonably require, of the names and addresses of the
     Holders of the Capital Securities ("List of Holders"), (i) within
     one Business Day after November 15 and May 15 of each year, and
     (ii) at any other time within 30 days of receipt by the Guarantor
     of a written request for a List of Holders as of a date no more
     than 14 days before such List of Holders is given to the Capital
     Securities Guarantee Trustee, provided that the Guarantor shall
     not be obligated to provide such List of Holders at any time the
     List of Holders does not differ from the most recent List of
     Holders given to the Capital Securities Guarantee Trustee by the
     Guarantor.  The Capital Securities Guarantee Trustee may destroy
     any List of Holders previously given to it on receipt of a new
     List of Holders.

               (b)  The Capital Securities Guarantee Trustee shall
     comply with its obligations under Sections 311(a), 311(b) and
     Section 312(b) of the Trust Indenture Act.

     SECTION 2.3    Reports by the Capital Securities Guarantee Trustee

               Within 60 days after December 15 of each year, commenc-
     ing December 15, 1997, the Capital Securities Guarantee Trustee
     shall provide to the Holders of the Capital Securities such
     reports as are required by Section 313 of the Trust Indenture
     Act, if any, in the form and in the manner provided by Section
     313 of the Trust Indenture Act.  The Capital Securities Guarantee
     Trustee shall also comply with the requirements of Section 313(d)
     of the Trust Indenture Act.

                                       6
<PAGE>
 
     SECTION 2.4    Periodic Reports to Capital Securities Guarantee
                    Trustee

               The Guarantor shall provide to the Capital Securities
     Guarantee Trustee such documents, reports and information as
     required by Section 314 (if any) of the Trust Indenture Act and
     the compliance certificate required by Section 314 of the Trust
     Indenture Act in the form, in the manner and at the times re-
     quired by Section 314 of the Trust Indenture Act.  Delivery of
     such reports, information and documents to the Capital Securities 
     Guarantee Trustee is for informational purposes only and the
     Capital Securities Guarantee Trustee's receipt of such shall not
     constitute constructive notice of any information contained
     therein or determinable from information contained therein,
     including the Guarantor's compliance with any of its covenants
     hereunder (as to which the Capital Securities Guarantee Trustee
     is entitled to rely exclusively on Officers' Certificates).

     SECTION 2.5    Evidence of Compliance with Conditions Precedent

               The Guarantor shall provide to the Capital Securities
     Guarantee Trustee such evidence of compliance with any conditions
     precedent, if any, provided for in this Capital Securities 
     Guarantee that relate to any of the matters set forth in Section
     314(c) of the Trust Indenture Act.  Any certificate or opinion
     required to be given by an officer pursuant to Section 314(c)(1)
     may be given in the form of an Officers' Certificate. 

     SECTION 2.6    Events of Default; Waiver

               The Holders of a Majority in liquidation amount of
     Capital Securities may, by vote, on behalf of the Holders of all
     of the Capital Securities, waive any past Event of Default and
     its consequences.  Upon such waiver, any such Event of Default
     shall cease to exist, and any Event of Default arising therefrom
     shall be deemed to have been cured, for every purpose of this
     Capital Securities Guarantee, but no such waiver shall extend to
     any subsequent or other default or Event of Default or impair any
     right consequent thereon. 

     SECTION 2.7    Event of Default; Notice

               (a)  The Capital Securities Guarantee Trustee shall,
     within 90 days after the occurrence of a default with respect to
     this Capital Securities Guarantee, mail by first class postage
     prepaid, to all Holders of the Capital Securities, notices of all
     defaults actually known to a Responsible Officer of the Capital
     Securities Guarantee Trustee, unless such defaults have been
     cured before the giving of such notice, provided, that, except in
     the case of default in the payment of any Guarantee Payment, the
     Capital Securities Guarantee Trustee shall be protected in
     withholding such notice if and so long as the board of directors,

                                       7
<PAGE>
 
     the executive committee, or a trust committee of directors and/or
     Responsible Officers of the Capital Securities Guarantee Trustee
     in good faith determines that the withholding of such notice is
     in the interests of the holders of the Capital Securities.

               (b)  The Capital Securities Guarantee Trustee shall not
     be deemed to have knowledge of any Event of Default unless the
     Capital Securities Guarantee Trustee shall have received written
     notice, or a Responsible Officer of the Capital Securities
     Guarantee Trustee charged with the administration of the Declara-
     tion shall have obtained actual knowledge, of such Event of
     Default.

     SECTION 2.8    Conflicting Interests

               The Declaration shall be deemed to be specifically
     described in this Capital Securities Guarantee for the purposes
     of clause (i) of the first proviso contained in Section 310(b) of
     the Trust Indenture Act.


                                ARTICLE III
                        POWERS, DUTIES AND RIGHTS OF
                    CAPITAL SECURITIES GUARANTEE TRUSTEE

     SECTION 3.1    Powers and Duties of the Capital Securities Guar-
                    antee Trustee

               (a)  This Capital Securities Guarantee shall be held by
     the Capital Securities Guarantee Trustee for the benefit of the
     Holders of the Capital Securities, and the Capital Securities
     Guarantee Trustee shall not transfer this Capital Securities
     Guarantee to any Person except a Holder of Capital Securities
     exercising his or her rights pursuant to Section 5.4(b) or to a
     Successor Capital Securities Guarantee Trustee on acceptance by
     such Successor Capital Securities Guarantee Trustee of its
     appointment to act as Successor Capital Securities Guarantee
     Trustee.  The right, title and interest of the Capital Securities
     Guarantee Trustee shall automatically vest in any Successor
     Capital Securities Guarantee Trustee, and such vesting and
     succession of title shall be effective whether or not conveyanc-
     ing documents have been executed and delivered pursuant to the
     appointment of such Successor Capital Securities Guarantee
     Trustee.  

               (b)  If an Event of Default actually known to a Respon-
     sible Officer of the Capital Securities Guarantee Trustee has
     occurred and is continuing, the Capital Securities Guarantee
     Trustee shall enforce this Capital Securities Guarantee for the
     benefit of the Holders of the Capital Securities.

                                       8
<PAGE>
 
               (c)  The Capital Securities Guarantee Trustee, before
     the occurrence of any Event of Default and after the curing of
     all Events of Default that may have occurred, shall undertake to
     perform only such duties as are specifically set forth in this
     Capital Securities Guarantee, and no implied covenants shall be
     read into this Capital Securities Guarantee against the Capital
     Securities Guarantee Trustee.  In case an Event of Default has
     occurred (that has not been cured or waived pursuant to Section
     2.6) and is actually known to a Responsible Officer of the
     Capital Securities Guarantee Trustee, the Capital Securities
     Guarantee Trustee shall exercise such of the rights and powers
     vested in it by this Capital Securities Guarantee, and use the
     same degree of care and skill in its exercise thereof, as a
     prudent person would exercise or use under the circumstances in
     the conduct of his or her own affairs.

               (d)  No provision of this Capital Securities Guarantee
     shall be construed to relieve the Capital Securities Guarantee
     Trustee from liability for its own negligent action, its own
     negligent failure to act, or its own willful misconduct, except
     that:

               (i)  prior to the occurrence of any Event of Default
          and after the curing or waiving of all such Events of De-
          fault that may have occurred:

                    (A)  the duties and obligations of the Capital
               Securities Guarantee Trustee shall be determined solely
               by the express provisions of this Capital Securities
               Guarantee, and the Capital Securities Guarantee Trustee
               shall not be liable except for the performance of such
               duties and obligations as are specifically set forth in
               this Capital Securities Guarantee, and no implied
               covenants or obligations shall be read into this Capi-
               tal Securities Guarantee against the Capital Securities
               Guarantee Trustee; and

                    (B)  in the absence of bad faith on the part of
               the Capital Securities Guarantee Trustee, the Capital
               Securities Guarantee 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 Capital Securities Guaran-
               tee Trustee and conforming to the requirements of this
               Capital Securities Guarantee; but in the case of any
               such certificates or opinions that by any provision
               hereof are specifically required to be furnished to the
               Capital Securities Guarantee Trustee, the Capital
               Securities Guarantee Trustee shall be under a duty to
               examine the same to determine whether or not they
               conform to the requirements of this Capital Securities
               Guarantee;

                                       9
<PAGE>
 
               (ii) the Capital Securities Guarantee Trustee shall not
          be liable for any error of judgment made in good faith by a
          Responsible Officer of the Capital Securities Guarantee
          Trustee, unless it shall be proved that the Capital Securi-
          ties Guarantee Trustee was negligent in ascertaining the
          pertinent facts upon which such judgment was made;

               (iii) the Capital Securities Guarantee 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 direc-
          tion of the Holders of a Majority in liquidation amount of
          the Capital Securities relating to the time, method and
          place of conducting any proceeding for any remedy available
          to the Capital Securities Guarantee Trustee, or exercising
          any trust or power conferred upon the Capital Securities
          Guarantee Trustee under this Capital Securities Guarantee;
          and

               (iv) no provision of this Capital Securities Guarantee
          shall require the Capital Securities Guarantee Trustee to
          expend or risk its own funds or otherwise incur personal
          financial liability in the performance of any of its duties
          or in the exercise of any of its rights or powers, if the
          Capital Securities Guarantee Trustee shall have reasonable
          grounds for believing that the repayment of such funds or
          liability is not reasonably assured to it under the terms of
          this Capital Securities Guarantee or indemnity, reasonably
          satisfactory to the Capital Securities Guarantee Trustee,
          against such risk or liability is not reasonably assured to
          it.

     SECTION 3.2    Certain Rights of Capital Securities Guarantee
                    Trustee

               (a)  Subject to the provisions of Section 3.1:

               (i)  The Capital Securities Guarantee Trustee may
          conclusively rely, and shall be fully protected in acting or
          refraining from acting, upon any resolution, certificate,
          statement, instrument, opinion, report, notice, request,
          direction, consent, order, bond, debenture, note, other
          evidence of indebtedness or other paper or document believed
          by it to be genuine and to have been signed, sent or pre-
          sented by the proper party or parties.

               (ii)  Any direction or act of the Guarantor contemplat-
          ed by this Capital Securities Guarantee may be sufficiently
          evidenced by an Officers' Certificate.

               (iii)  Whenever, in the administration of this Capital
          Securities Guarantee, the Capital Securities Guarantee
          Trustee shall deem it desirable that a matter be proved or

                                       10
<PAGE>
 
          established before taking, suffering or omitting any action
          hereunder, the Capital Securities Guarantee Trustee (unless
          other evidence is herein specifically prescribed) may, in
          the absence of bad faith on its part, request and conclu-
          sively rely upon an Officers' Certificate which, upon re-
          ceipt of such request, shall be promptly delivered by the
          Guarantor.

               (iv)  The Capital Securities Guarantee Trustee shall
          have no duty to see to any recording, filing or registration
          of any instrument (or any rerecording, refiling or registra-
          tion thereof).

               (v)  The Capital Securities Guarantee Trustee may
          consult with counsel of its selection, and the advice or
          opinion of such counsel with respect to legal matters shall
          be full and complete authorization and protection in respect
          of any action taken, suffered or omitted by it hereunder in
          good faith and in accordance with such advice or opinion. 
          Such counsel may be counsel to the Guarantor or any of its
          Affiliates and may include any of its employees.  The Capi-
          tal Securities Guarantee Trustee shall have the right at any
          time to seek instructions concerning the administration of
          this Capital Securities Guarantee from any court of compe-
          tent jurisdiction.

               (vi)  The Capital Securities Guarantee Trustee shall be
          under no obligation to exercise any of the rights or powers
          vested in it by this Capital Securities Guarantee at the
          request or direction of any Holder, unless such Holder shall
          have provided to the Capital Securities Guarantee Trustee
          such security and indemnity, reasonably satisfactory to the
          Capital Securities Guarantee Trustee, against the costs,
          expenses (including attorneys' fees and expenses and the
          expenses of the Capital Securities Guarantee Trustee's
          agents, nominees or custodians) and liabilities that might
          be incurred by it in complying with such request or direc-
          tion, including such reasonable advances as may be requested
          by the Capital Securities Guarantee Trustee; provided that,
          nothing contained in this Section 3.2(a)(vi) shall be taken
          to relieve the Capital Securities Guarantee Trustee, upon
          the occurrence of an Event of Default, of its obligation to
          exercise the rights and powers vested in it by this Capital
          Securities Guarantee.

               (vii)  The Capital Securities Guarantee 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, other evidence of
          indebtedness or other paper or document, but the Capital
          Securities Guarantee Trustee, in its discretion, may make

                                       11
<PAGE>
 
          such further inquiry or investigation into such facts or
          matters as it may see fit.

               (viii)  The Capital Securities Guarantee Trustee may
          execute any of the trusts or powers hereunder or perform any
          duties hereunder either directly or by or through agents,
          nominees, custodians or attorneys, and the Capital Securi-
          ties Guarantee Trustee shall not be responsible for any
          misconduct or negligence on the part of any agent or attor-
          ney appointed with due care by it hereunder.

               (ix)  Any action taken by the Capital Securities Guar-
          antee Trustee or its agents hereunder shall bind the Holders
          of the Capital Securities, and the signature of the Capital
          Securities Guarantee Trustee or its agents alone shall be
          sufficient and effective to perform any such action.  No
          third party shall be required to inquire as to the authority
          of the Capital Securities Guarantee Trustee to so act or as
          to its compliance with any of the terms and provisions of
          this Capital Securities Guarantee, both of which shall be
          conclusively evidenced by the Capital Securities Guarantee
          Trustee's or its agent's taking such action.

               (x)  Whenever in the administration of this Capital
          Securities Guarantee the Capital Securities Guarantee Trust-
          ee shall deem it desirable to receive instructions with
          respect to enforcing any remedy or right or taking any other
          action hereunder, the Capital Securities Guarantee Trustee
          (i) may request instructions from the Holders of a Majority
          in liquidation amount of the Capital Securities, (ii) may
          refrain from enforcing such remedy or right or taking such
          other action until such instructions are received, and (iii)
          shall be protected in conclusively relying on or acting in
          accordance with such instructions.

               (xi)  The Capital Securities Guarantee Trustee shall
          not be liable for any action taken, suffered, or omitted to
          be taken by it in good faith, without negligence, and rea-
          sonably believed by it to be authorized or within the dis-
          cretion or rights or powers conferred upon it by this Capi-
          tal Securities Guarantee.

               (b)  No provision of this Capital Securities Guarantee
     shall be deemed to impose any duty or obligation on the Capital
     Securities Guarantee Trustee to perform any act or acts or
     exercise any right, power, duty or obligation conferred or
     imposed on it in any jurisdiction in which it shall be illegal,
     or in which the Capital Securities Guarantee Trustee shall be
     unqualified or incompetent in accordance with applicable law, to
     perform any such act or acts or to exercise any such right,
     power, duty or obligation.  No permissive power or authority
     available to the 

                                       12
<PAGE>
 
     Capital Securities Guarantee Trustee shall be construed to be a 
     duty.

     SECTION 3.3.   Not Responsible for Recitals or Issuance of Capi-
                    tal Securities Guarantee

               The recitals contained in this Capital Securities
     Guarantee shall be taken as the statements of the Guarantor, and
     the Capital Securities Guarantee Trustee does not assume any
     responsibility for their correctness.  The Capital Securities 
     Guarantee Trustee makes no representation as to the validity or
     sufficiency of this Capital Securities Guarantee.


                                 ARTICLE IV
                    CAPITAL SECURITIES GUARANTEE TRUSTEE

     SECTION 4.1    Capital Securities Guarantee Trustee; Eligibility

               (a)  There shall at all times be a Capital Securities
     Guarantee Trustee which shall:

               (i)  not be an Affiliate of the Guarantor; and

               (ii) be a corporation organized and doing business
          under the laws of the United States of America or any State
          or Territory thereof or of the District of Columbia, or a
          corporation or Person permitted by the Securities and Ex-
          change Commission to act as an institutional trustee under
          the Trust Indenture Act, authorized under such laws to
          exercise corporate trust powers, having a combined capital
          and surplus of at least 50 million U.S. dollars
          ($50,000,000), and subject to supervision or examination by
          Federal, State, Territorial or District of Columbia authori-
          ty.  If such corporation publishes reports of condition at
          least annually, pursuant to law or to the requirements of
          the supervising or examining authority referred to above,
          then, for the purposes of this Section 4.1(a)(ii), the
          combined capital and surplus of such corporation shall be
          deemed to be its combined capital and surplus as set forth
          in its most recent report of condition so published.
      
               (b)  If at any time the Capital Securities Guarantee
     Trustee shall cease to be eligible to so act under Section
     4.1(a), the Capital Securities Guarantee Trustee shall immediate-
     ly resign in the manner and with the effect set out in Section
     4.2(c).

               (c)  If the Capital Securities Guarantee Trustee has or
     shall acquire  any "conflicting interest" within the meaning of
     Section 310(b) of the Trust Indenture Act, the Capital Securities

                                       13
<PAGE>
 
     Guarantee Trustee and Guarantor shall in all respects comply with
     the provisions of Section 310(b) of the Trust Indenture Act.

     SECTION 4.2    Appointment, Removal and Resignation of Capital
                    Securities Guarantee Trustee

               (a)  Subject to Section 4.2(b), the Capital Securities
     Guarantee Trustee may be appointed or removed without cause at
     any time by the Guarantor except during an Event of Default.

               (b)  The Capital Securities Guarantee Trustee shall not
     be removed in accordance with Section 4.2(a) until a Successor
     Capital Securities Guarantee Trustee has been appointed and has
     accepted such appointment by written instrument executed by such
     Successor Capital Securities Guarantee Trustee and delivered to
     the Guarantor.

               (c)  The Capital Securities Guarantee Trustee shall
     hold office until a Successor Capital Securities Guarantee
     Trustee shall have been appointed or until its removal or resig-
     nation.  The Capital Securities Guarantee Trustee may resign from
     office (without need for prior or subsequent accounting) by an
     instrument in writing executed by the Capital Securities Guaran-
     tee Trustee and delivered to the Guarantor, which resignation
     shall not take effect until a Successor Capital Securities
     Guarantee Trustee has been appointed and has accepted such
     appointment by instrument in writing executed by such Successor
     Capital Securities Guarantee Trustee and delivered to the Guaran-
     tor and the resigning Capital Securities Guarantee Trustee.

               (d)  If no Successor Capital Securities Guarantee
     Trustee shall have been appointed and accepted appointment as
     provided in this Section 4.2 within 60 days after delivery of an
     instrument of removal or resignation, the Capital Securities
     Guarantee Trustee resigning or being removed may petition any
     court of competent jurisdiction for appointment of a Successor
     Capital Securities Guarantee Trustee.  Such court may thereupon,
     after prescribing such notice, if any, as it may deem proper,
     appoint a Successor Capital Securities Guarantee Trustee.

               (e)  No Capital Securities Guarantee Trustee shall be
     liable for the acts or omissions to act of any Successor Capital
     Securities Guarantee Trustee.

               (f)  Upon termination of this Capital Securities 
     Guarantee or removal or resignation of the Capital Securities
     Guarantee Trustee pursuant to this Section 4.2, the Guarantor
     shall pay to the Capital Securities Guarantee Trustee all amounts
     due to the Capital Securities Guarantee Trustee accrued to the
     date of such termination, removal or resignation.

                                       14
<PAGE>
 
                                 ARTICLE V
                                 GUARANTEE

     SECTION 5.1    Guarantee

               The Guarantor irrevocably and unconditionally agrees to
     pay in full to the Holders the Guarantee Payments (without
     duplication of amounts theretofore paid by the Issuer), as and
     when due, regardless of any defense, right of set-off or counter-
     claim that the Issuer may have or assert.  The Guarantor's
     obligation to make a Guarantee Payment may be satisfied by direct
     payment of the required amounts by the Guarantor to the Holders
     or by causing the Issuer to pay such amounts to the Holders.

     SECTION 5.2    Waiver of Notice and Demand

               The Guarantor hereby waives notice of acceptance of
     this Capital Securities Guarantee and of any liability to which
     it applies or may apply, presentment, demand for payment, any
     right to require a proceeding first against the Issuer or any
     other Person before proceeding against the Guarantor, protest,
     notice of nonpayment, notice of dishonor, notice of redemption
     and all other notices and demands.

     SECTION 5.3    Obligations Not Affected

               The obligations, covenants, agreements and duties of
     the Guarantor under this Capital Securities Guarantee shall in no
     way be affected or impaired by reason of the happening from time
     to time of any of the following:

               (a)  the release or waiver, by operation of law or
     otherwise, of the performance or observance by the Issuer of any
     express or implied agreement, covenant, term or condition relat-
     ing to the Capital Securities to be performed or observed by the
     Issuer;

               (b)  the extension of time for the payment by the
     Issuer of all or any portion of the Distributions, Redemption
     Price, Liquidation Distribution or any other sums payable under
     the terms of the Capital Securities or the extension of time for
     the performance of any other obligation under, arising out of, or
     in connection with, the Capital Securities (other than an exten-
     sion of time for payment of Distributions, Redemption Price,
     Liquidation Distribution or other sum payable that results from
     the extension of any interest payment period on the Debentures
     permitted by the Indenture);

               (c)  any failure, omission, delay or lack of diligence
     on the part of the Holders to enforce, assert or exercise any
     right, privilege, power or remedy conferred on the Holders
     pursuant to the terms of the Capital Securities, or any action on

                                       15
<PAGE>
 
     the part of the Issuer granting indulgence or extension of any
     kind;

               (d)  the voluntary or involuntary liquidation, dissolu-
     tion, sale of any collateral, receivership, insolvency, bankrupt-
     cy, assignment for the benefit of creditors, reorganization,
     arrangement, composition or readjustment of debt of, or other
     similar proceedings affecting, the Issuer or any of the assets of
     the Issuer;

               (e)  any invalidity of, or defect or deficiency in, the
     Capital Securities;
      
               (f)  the settlement or compromise of any obligation
     guaranteed hereby or hereby incurred; or

               (g)  any other circumstance whatsoever that might
     otherwise constitute a legal or equitable discharge or defense of
     a guarantor;

     it being the intent of this Section 5.3 that the obligations of
     the Guarantor with respect to the Guarantee Payments shall be
     absolute and unconditional under any and all circumstances.

               There shall be no obligation of the Holders to give
     notice to, or obtain consent of, the Guarantor with respect to
     the happening of any of the foregoing.

     SECTION 5.4    Rights of Holders

               (a)  The Holders of a Majority in liquidation amount of
     the Capital Securities have the right to direct the time, method
     and place of conducting any proceeding for any remedy available
     to the Capital Securities Guarantee Trustee in respect of this
     Capital Securities Guarantee or exercising any trust or power
     conferred upon the Capital Securities Guarantee Trustee under
     this Capital Securities Guarantee.

               (b)  If the Capital Securities Guarantee Trustee fails
     to enforce such Capital Securities Guarantee, any Holder of
     Capital Securities may institute a legal proceeding directly
     against the Guarantor to enforce the Capital Securities Guarantee
     Trustee's rights under this Capital Securities Guarantee, without
     first instituting a legal proceeding against the Issuer, the
     Capital Securities Guarantee Trustee or any other person or
     entity.  The Guarantor waives any right or remedy to require that
     any action be brought first against the Issuer or any other person 
     or entity before proceeding directly against the Guarantor. 

                                       16
<PAGE>
 
     SECTION 5.5    Guarantee of Payment

               This Capital Securities Guarantee creates a guarantee
     of payment and not of collection.

     SECTION 5.6    Subrogation

               The Guarantor shall be subrogated to all (if any)
     rights of the Holders of Capital Securities against the Issuer in
     respect of any amounts paid to such Holders by the Guarantor
     under this Capital Securities Guarantee; provided, however, that
     the Guarantor shall not (except to the extent required by manda-
     tory provisions of law) be entitled to enforce or exercise any
     right that it may acquire by way of subrogation or any indemnity,
     reimbursement or other agreement, in all cases as a result of
     payment under this Capital Securities Guarantee, if, at the time
     of any such payment, any amounts are due and unpaid under this
     Capital Securities Guarantee.  If any amount shall be paid to the
     Guarantor in violation of the preceding sentence, the Guarantor
     agrees to hold such amount in trust for the Holders and to pay
     over such amount to the Holders.

     SECTION 5.7    Independent Obligations

               The Guarantor acknowledges that its obligations hereun-
     der are independent of the obligations of the Issuer with respect
     to the Capital Securities, and that the Guarantor shall be liable
     as principal and as debtor hereunder to make Guarantee Payments
     pursuant to the terms of this Capital Securities Guarantee
     notwithstanding the occurrence of any event referred to in
     subsections (a) through (g), inclusive, of Section 5.3 hereof.


                                 ARTICLE VI
                 LIMITATION OF TRANSACTIONS; SUBORDINATION

     SECTION 6.1    Limitation of Transactions

               So long as any Capital Securities remain outstanding,
     the Guarantor shall not (i) declare or pay any dividends or
     distributions on, or redeem, purchase, acquire, or make a liqui-
     dation payment with respect to, any of the Guarantor's capital
     stock (which includes common and preferred stock) or (ii) make
     any payment of principal, interest or premium, if any, on or
     repay or repurchase or redeem any debt securities of the Guaran-
     tor (including any Other Debentures) that rank pari passu with or
     junior in right of payment to the Debentures or (iii) make any
     guarantee payments with respect to any guarantee by the Guarantor
     of the debt securities of any subsidiary of the Guarantor (in-
     cluding Other Guarantees) if such guarantee ranks pari passu or
     junior in right of payment to the Debentures (other than (a)
     dividends or distributions in shares of, or options, warrants,

                                       17
<PAGE>
 
     rights to subscribe for or purchase shares of, common stock of
     the Guarantor, (b) any declaration of a dividend in connection
     with the implementation of a stockholder's rights plan, or the
     issuance of stock under any such plan in the future, or the
     redemption or repurchase of any such rights pursuant thereto, (c)
     payments under the Capital Securities Guarantee, (d) as a result
     of a reclassification of the Guarantor's capital stock or the
     exchange or the conversion of one class or series of the
     Guarantor's capital stock for another class or series of the
     Guarantor's capital stock, (e) the purchase of fractional inter-
     ests in shares of the Guarantor's capital stock pursuant to the
     conversion or exchange provisions of such capital stock or the
     security being converted or exchanged, and (f) purchases of
     common stock related to the issuance of common stock or rights
     under any of the Guarantor's benefit plans for its directors,
     officers or employees or any of the Guarantor's dividend rein-
     vestment plans) if at such time (i) there shall have occurred any
     event of which the Guarantor has actual knowledge that (a) is, or
     with the giving of notice or the lapse of time, or both, would be
     an Event of Default and (b) in respect of which the Guarantor
     shall not have taken reasonable steps to cure, (ii) if such
     Debentures are held by the Property Trustee, the Guarantor shall
     be in default with respect to its payment of any obligations
     under this Capital Securities Guarantee or (iii) the Guarantor
     shall have given notice of its election of the exercise of its
     right to extend the interest payment period pursuant to Section
     16.01 of the Indenture and any such extension shall be continu-
     ing.

     SECTION 6.2    Ranking

               This Capital Securities Guarantee will constitute an
     unsecured obligation of the Guarantor and will rank (i) subordi-
     nate and junior in right of payment to Senior Indebtedness (as
     defined in the Indenture), to the same extent and in the same
     manner that the Debentures are subordinated to Senior Indebted-
     ness pursuant to the Indenture (except as indicated below), it
     being understood that the terms of Article XV of the Indenture
     shall apply to the obligations of the Guarantor under this
     Capital Securities Guarantee as if (x) such Article XV were set
     forth herein in full and (y) such obligations were substituted
     for the term "Securities" appearing in such Article XV, except
     that with respect to Section 15.03 of the Indenture only, the
     term "Senior Indebtedness" shall mean all liabilities of the
     Guarantor, whether or not for money borrowed (other than obliga-
     tions referred to in clause (ii) below), (ii) pari passu with the
     most senior preferred or preference stock now or hereafter issued
     by the Guarantor and with any Other Guarantee, any Other Common
     Securities Guarantee and any guarantee now or hereafter entered
     into by the Guarantor in respect of any preferred or preference
     stock of any Affiliate of the Guarantor, and (iii) senior to the
     Guarantor's common stock.

                                       18
<PAGE>
 
                                ARTICLE VII
                                TERMINATION

     SECTION 7.1    Termination

               This Capital Securities Guarantee shall terminate (i)
     upon full payment of the Redemption Price of all Capital Securi-
     ties, or (ii) upon liquidation of the Issuer, the full payment of
     the amounts payable in accordance with the Declaration or the
     distribution of the Debentures to the Holders of all of the
     Capital Securities.  Notwithstanding the foregoing, this Capital
     Securities Guarantee will continue to be effective or will be
     reinstated, as the case may be, if at any time any Holder of
     Capital Securities must restore payment of any sums paid under
     the Capital Securities or under this Capital Securities Guaran-
     tee.


                                ARTICLE VIII
                              INDEMNIFICATION

     SECTION 8.1    Exculpation

               (a)  No Indemnified Person shall be liable, responsible
     or accountable in damages or otherwise to the Guarantor or any
     Covered Person for any loss, damage or claim incurred by reason
     of any act or omission performed or omitted by such Indemnified
     Person in good faith in accordance with this Capital Securities
     Guarantee and in a manner that such Indemnified Person reasonably
     believed to be within the scope of the authority conferred on
     such Indemnified Person by this Capital Securities Guarantee or
     by law, except that an Indemnified Person shall be liable for any
     such loss, damage or claim incurred by reason of such Indemnified
     Person's negligence or willful misconduct with respect to such
     acts or omissions.

               (b)  An Indemnified Person shall be fully protected in
     relying in good faith upon the records of the Guarantor and upon
     such information, opinions, reports or statements presented to
     the Guarantor by any Person as to matters the Indemnified Person
     reasonably believes are within such other Person's professional
     or expert competence and who has been selected with reasonable
     care by or on behalf of the Guarantor, including information,
     opinions, reports or statements as to the value and amount of the
     assets, liabilities, profits, losses, or any other facts perti-
     nent to the existence and amount of assets from which Distribu-
     tions to Holders of Capital Securities might properly be paid. 

     SECTION 8.2    Indemnification

               The Guarantor agrees to indemnify each Indemnified
     Person for, and to hold each Indemnified Person harmless against,

                                       19
<PAGE>
 
     any and all loss, liability, damage, claim or expense incurred
     without negligence or bad faith on its part, arising out of or in
     connection with the acceptance or administration of the trust or
     trusts hereunder, including the costs and expenses (including
     reasonable legal fees and expenses) of defending itself against,
     or investigating, any claim or liability in connection with the
     exercise or performance of any of its powers or duties hereunder. 
     The obligation to indemnify as set forth in this Section 8.2
     shall survive the termination of this Capital Securities Guaran-
     tee.


                                 ARTICLE IX
                               MISCELLANEOUS

     SECTION 9.1    Successors and Assigns

               All guarantees and agreements contained in this Capital
     Securities Guarantee shall bind the successors, assigns, receiv-
     ers, trustees and representatives of the Guarantor and shall
     inure to the benefit of the Holders of the Capital Securities
     then outstanding.

     SECTION 9.2    Amendments

               Except with respect to any changes that do not materi-
     ally adversely affect the rights of Holders (in which case no
     consent of Holders will be required), this Capital Securities
     Guarantee may only be amended with the prior approval of the
     Holders of a Majority in liquidation amount of the Capital
     Securities (including the amount payable on redemption, liquida-
     tion or otherwise, plus accumulated and unpaid Distributions to
     the date upon which the voting percentages are determined).  The
     provisions of Section 12.2 of the Declaration with respect to
     meetings of Holders of the Securities apply to the giving of such
     approval.

     SECTION 9.3    Notices

               All notices provided for in this Capital Securities
     Guarantee shall be in writing, duly signed by the party giving
     such notice, and shall be delivered, telecopied or mailed by
     first class mail, as follows:

                                       20
<PAGE>
 
               (a)  If given to the Issuer, in care of the Administra-
     tive Trustee at the Issuer's mailing address set forth below (or
     such other address as the Issuer may give notice of to the
     Holders of the Common Securities):

                    BankBoston Capital Trust III
                    c/o BankBoston Corporation
                    P.O. Box 2016
                    Boston, Massachusetts  02106-2016
                    Attention:  Kathleen M. McGillycuddy,
                                Administrative Trustee
                    Telecopy:   (617) 434-0501

               (b)  If given to the Capital Securities Guarantee
     Trustee, at the Capital Securities Guarantee Trustee's mailing
     address set forth below (or such other address as the Capital
     Securities Guarantee Trustee may give notice of to the Holders of
     the Capital Securities):

                    The Bank of New York
                    101 Barclay Street, 21 West
                    New York, New York  10286
                    Attention:  Corporate Trust Trustee 
                                Administration
                    Telecopy:   (212) 815-5915

               (c)  If given to the Guarantor, at the Guarantor's
     mailing address set forth below (or such other address as the
     Guarantor may give notice of to the Holders of the Capital
     Securities):

                    BankBoston Corporation
                    100 Federal Street, MA BOS 01-25-01
                    Boston, Massachusetts  02110
                    Attention:  Gary A. Spiess, General Counsel
                    Telecopy:  (617) 434-6525

               (d)  If given to any Holder of Capital Securities, at
     the address set forth on the books and records of the Issuer.

               All such notices shall be deemed to have been given
     when received in person, telecopied with receipt confirmed, or
     mailed by first class mail, postage prepaid except that if a
     notice or other document is refused delivery or cannot be deliv-
     ered because of a changed address of which no notice was given,
     such notice or other document shall be deemed to have been
     delivered on the date of such refusal or inability to deliver.

     SECTION 9.4    Benefit

               This Capital Securities Guarantee is solely for the
     benefit of the Holders of the Capital Securities and, subject to

                                       21
<PAGE>
 
     Section 3.1(a), is not separately transferable from the Capital
     Securities. 

     SECTION 9.5    Governing Law

               THIS CAPITAL SECURITIES GUARANTEE SHALL BE GOVERNED BY,
     AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH, THE LAWS OF THE
     STATE OF NEW YORK, WITHOUT REGARD TO CONFLICTS OF LAWS PRINCIPLES
     THEREOF.

                                       22
<PAGE>
 
               THIS CAPITAL SECURITIES GUARANTEE is executed as of the
     day and year first above written.

                                   BANKBOSTON CORPORATION,
                                   as Guarantor

                                   By:
                                      --------------------------------
                                      Name:
                                      Title:

                                   THE BANK OF NEW YORK, as Capital
                                   Securities Guarantee Trustee

                                   By:                                
                                      --------------------------------
                                      Name:  
                                      Title: 


     (Capital Securities Guarantee)
<PAGE>
 
               THIS CAPITAL SECURITIES GUARANTEE is executed as of the
     day and year first above written.

                                   BANKBOSTON CORPORATION,
                                   as Guarantor

                                   By:                                
                                      --------------------------------
                                      Name:  
                                      Title: 
                                              

                                   THE BANK OF NEW YORK, as Capital
                                   Securities Guarantee Trustee

                                   By:                                
                                      --------------------------------
                                      Name:
                                      Title:


     (Capital Securities Guarantee)

<PAGE>
 
                                                                     EXHIBIT 5.1



                                                                    May 29, 1997


Bank of Boston Corporation
100 Federal Street
Boston, Massachusetts 02110


          Re:  Bank of Boston Corporation
               BankBoston Capital Trust III
               Registration Statement on Form S-3
               File No. 333-27229

Ladies and Gentlemen:


          We have acted as counsel to BankBoston Corporation, a Massachusetts
corporation (the "Corporation") and Sponsor of BankBoston Capital Trust III, a
statutory business trust formed under the laws of the State of Delaware (the
"Trust"), in connection with a Registration Statement on Form S-3, filed by the
Corporation and the Trust on May 16, 1997 with the Securities and Exchange
Commission pursuant to the Securities Act of 1933, as amended (the "1933 Act"),
as amended by Amendment No. 1 to the Registration Statement filed with the
Commission on May 29, 1997 (as so amended, the "Registration Statement")
relating to the registration of the Floating Rate Capital Securities of the
Trust (the "Capital Securities"), the Floating Rate Junior Subordinated
Deferrable Interest Debentures due _________, 2027 of the Corporation (the
"Junior Subordinated Debentures"), and a Guarantee of the Corporation with
respect to the Capital Securities (the "Guarantee").

     The Capital Securities will be issued pursuant an Amended and Restated
Declaration of Trust (the "Amended Declaration") of the Trust, among the
Corporation, as Sponsor of the Trust, The Bank of New York, as property trustee,
The Bank of New York (Delaware), as Delaware trustee, and the Administrative
Trustees named therein, while the Junior Subordinated Debentures will be issued
pursuant to an Indenture (the "Indenture"), between the Corporation and The Bank
of New York, as debenture trustee.

     This opinion is being delivered in accordance with the requirements of Item
601(b)(5) of Regulation S-K under the 1933 Act.

     We have examined such documents and records as we deemed appropriate,
including the following:
<PAGE>
 
          (i) Copy of the Restated Articles of Organization of the Corporation,
     certified as of a recent date by the Secretary of State of The Commonwealth
     of Massachusetts.

         (ii) Copy of the By-Laws of the Corporation, as amended, certified as
     of a recent date by an Assistant Clerk of the Corporation to be a true and
     complete copy.

        (iii) Copy, certified as of a recent date by an Assistant Clerk of the
     Corporation to be a true copy, of the votes of the Executive Committee of
     the Board of Directors of the Corporation adopted November 15, 1996
     authorizing the filing of the Registration Statement .

         (iv) Form of the Amended Declaration.

          (v) Form of the Capital Security.

         (vi) Form of the Indenture.

        (vii) Form of the Junior Subordinated Debenture.

       (viii) Form of the Guarantee.

     In addition, as to questions of fact material to our opinions, we have
relied upon certificates of officers of the Corporation, the Administrative
Trustees of the Trust and public officials.

     In the course of our examination, we have assumed the legal capacity of all
natural persons, the genuineness of all signa tures, the authenticity of all
documents submitted to us as originals, the conformity to original documents of
all documents submitted to us as certified or photostatic copies and the
authenticity of the originals of such latter documents.  In making our
examination of documents executed by parties other than the Corporation or the
Trust, we have assumed that such par ties had the power, corporate or other, to
enter into and perform all obligations thereunder and have also assumed the due
authori zation by all requisite action, corporate or other, and execution and
delivery by such parties of such documents and the validity and binding effect
thereof on such parties.

     Based upon the foregoing, we are of the opinion that:

     (1) The Junior Subordinated Debentures have been duly authorized by all
requisite corporate action of the Corporation and, when executed, authenticated
and delivered in the manner provided for in the Indenture, the Junior
Subordinated Debentures will constitute valid and binding obligations of the
Corporation entitled to the benefits of the Indenture and enforceable against
the Corporation in accordance with their terms, except as enforcement thereof
may be limited by bankruptcy, insolvency, reorganization, moratorium or other
similar laws relating to or

                                       2
<PAGE>
 
affecting creditors' rights generally or by general equitable principles
(regardless of whether considered in a proceeding in equity or at law).

     (2) The Guarantee has been duly authorized by all requisite corporate
action of the Corporation and, when executed and delivered to The Bank of New
York, as guarantee trustee, the Guarantee will constitute a valid and binding
agreement of the Corporation, enforceable against the Corporation in accordance
with its terms, except as enforcement thereof may be limited by bankruptcy,
insolvency, reorganization, moratorium or other similar laws relating to or
affecting creditors' rights generally or by general equitable principles
(regardless of whether considered in a proceeding in equity or at law).

     We are members of the Bar of the State of New York and we express no
opinion as to the laws of any jurisdiction other than the laws of the State of
New York and the federal laws of the United States of America and, with respect
to the laws of The Commonwealth of Massachusetts, we have made no independent
inves tigation of such laws and have relied on all matters governed by such laws
upon the opinion of Gary A. Spiess, General Counsel of the Corporation.

     We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement and to the reference to our firm under the caption
"Validity of Securities" contained in the Prospectus included therein.


                                    Very truly yours,

                                    /s/ Brown & Wood LLP

                                    BROWN & WOOD LLP

                                       3

<PAGE>
 
                                                                     EXHIBIT 5.2


           [Letterhead of Skadden, Arps, Slate, Meagher & Flom LLP]


                                        May 29, 1997

          BankBoston Capital Trust III
          BankBoston Corporation
          c/o  BankBoston Corporation
               100 Federal Street
               MA BOS 01-25-01
               Boston, Massachusetts 02110

          Ladies and Gentlemen:

                    We have acted as special Delaware counsel to
          BankBoston Capital Trust III (the "Trust"), a business
          trust formed under the Business Trust Act of the State of
          Delaware (Chapter 38, Title 12, of the Delaware Code,
          12 Del. C. SECTION 3801 et. seq.), and BankBoston Corporation,
          a Massachusetts corporation (the "Company"), in connec-
          tion with the preparation of the Registration Statement
          on Form S-3 filed by the Company and the Trust with the
          Securities and Exchange Commission (the "Commission") on
          May 16, 1997, and Amendment No. 1 thereto, to be filed
          with the Commission on the date hereof (such Registration
          Statement, as so amended, being hereinafter referred to
          as the "Registration Statement"), with respect to the
          registration under the Securities Act of 1933, as amended
          (the "Act"), of, among other securities, Capital Securi-
          ties (liquidation amount of $1,000 per security) of the
          Trust (the "Capital Securities").

                    The Capital Securities are to be issued pursu-
          ant to the Amended and Restated Declaration of Trust of
          the Trust (the "Declaration"), among the Company, as
          sponsor of the Trust, Robert T. Jefferson, Kathleen M.
          McGillycuddy and Craig V. Starble, as administrative
          trustees, The Bank of New York, as property trustee (the
          "Property Trustee"), and The Bank of New York (Delaware),
          as Delaware trustee.
<PAGE>
 
          BankBoston Capital Trust III
          BankBoston Corporation
          May 29, 1997
          Page 2

                    This opinion is being delivered in accordance
          with the requirements of Item 601(b)(5) of Regulation S-K
          under the Act.

                    In connection with this opinion, we have exam-
          ined originals or copies, certified or otherwise identi-
          fied to our satisfaction, of (i) the Registration State-
          ment; (ii) the Certificate of Trust of the Trust filed
          with the Secretary of State of the State of Delaware on
          May 14, 1997; (iii) the form of the Declaration; (iv) the
          form of the Capital Securities and a specimen certificate
          thereof; and (v) the form of the Purchase Agreement (the
          "Purchase Agreement") proposed to be entered into among
          the Company, the Trust and the representatives for the
          Underwriters named therein (collectively, the "Underwrit-
          ers") relating to, among other things, the sale of the
          Capital Securities.  We have also examined originals or
          copies, certified or otherwise identified to our satis-
          faction, of such other documents, certificates and re-
          cords as we have deemed necessary or appropriate as a
          basis for the opinions set forth herein.

                    In our examination, we have assumed the legal
          capacity of all natural persons, the genuineness of all
          signatures, the authenticity of all documents submitted
          to us as originals, the conformity to original documents
          of all documents submitted to us as certified or photo-
          static copies and the authenticity of the originals of
          such copies.  In making our examination of documents
          executed or to be executed by parties other than the
          Trust, we have assumed that such parties had or will have
          the power, corporate or other, to enter into and perform
          all obligations thereunder and have also assumed the due
          authorization by all requisite action, corporate or
          other, and execution and delivery by such parties of such
          documents and the validity and binding effect thereof on
          such parties.  In addition, we have assumed that the
          Declaration and the Capital Securities when executed will
          be in substantially the forms reviewed by us.  As to any
          facts material to the opinions expressed herein which we
          did not independently establish or verify, we have relied
          upon oral or written statements and representations of
<PAGE>
 
          BankBoston Capital Trust III
          BankBoston Corporation
          May 29, 1997
          Page 3

          officers, trustees and other representatives of the
          Company, the Trust and others.

                    Members of our firm are admitted to the bar in
          the State of Delaware, and we do not express any opinion
          as to laws of any other jurisdiction.

                    Based upon and subject to the foregoing and the
          limitations, qualifications, exceptions and assumptions
          set forth herein, we are of the opinion that when (i) the
          Registration Statement becomes effective; (ii) the Decla-
          ration and the Purchase Agreement have been duly executed
          and delivered by the parties thereto; (iii) the Declara-
          tion has been qualified under the Trust Indenture Act of
          1939, as amended; and (iv) the terms of the Capital
          Securities have been duly established in accordance with
          the Declaration and the Capital Securities have been duly
          executed and authenticated in accordance with the Decla-
          ration and delivered to and paid for by the Underwriters
          as contemplated by the Purchase Agreement, the Capital
          Securities will have been duly authorized for issuance by
          the Trust and will be validly issued, fully paid and
          nonassessable, representing undivided beneficial inter-
          ests in the assets of the Trust; and the holders of the
          Capital Securities will be entitled to the same limita-
          tion of personal liability extended to stockholders of
          private corporations for profit organized under the
          General Corporation Law of the State of Delaware.  We
          bring to your attention, however, that the holders of the
          Capital Securities may be obligated, pursuant to the
          Declaration, to (i) provide indemnity and/or security in
          connection with, and pay taxes or governmental charges
          arising from, transfers of Capital Securities and the
          issuance of replacement Capital Securities and (ii)
          provide security and indemnity in connection with re-
          quests of or directions to the Property Trustee to exer-
          cise its rights and powers under the Declaration.
<PAGE>
 
          BankBoston Capital Trust III
          BankBoston Corporation
          May 29, 1997
          Page 4

                    We hereby consent to the use of our name under
          the heading "Validity of Securities" in the prospectus
          which forms a part of the Registration Statement.  We
          also hereby consent to the filing of this opinion with
          the Commission as an exhibit to the Registration State-
          ment.  In giving this consent, we do not thereby admit
          that we are within the category of persons whose consent
          is required under Section 7 of the Act or the rules and
          regulations of the Commission promulgated thereunder. 
          This opinion is expressed as of the date hereof, and we
          disclaim any undertaking to advise you of any subsequent
          changes in the facts stated or assumed herein or of any
          subsequent changes in applicable law.

                                        Very truly yours,

                    /s/ Skadden, Arps, Slate, Meagher & Flom LLP

<PAGE>
 
                                                                       EXHIBIT 8


                                                                    May 29, 1997



BankBoston Corporation
100 Federal Street
Boston, Massachusetts 02110


          Re:  BankBoston Corporation
               BankBoston Capital Trust III
               Registration Statement
               File No. 333-27229

Dear Sirs:

     We have acted as special tax counsel to BankBoston Corporation, a
Massachusetts corporation (the "Corporation") and Sponsor of BankBoston Capital
Trust III, a statutory business trust formed under the laws of the State of
Delaware (the "Trust"), in connection with a Registration Statement on Form S-3,
filed by the Corporation and the Trust on May 16, 1997 with the Securities and
Exchange Commission pursuant to the Securities Act of 1933, as amended (the
"1933 Act"), as amended by Amendment No. 1 to the Registration Statement filed
with the Commission on May 29, 1997 (as so amended, the "Registration
Statement") relating to the registration of the Floating Rate Capital Securities
of the Trust (the "Capital Securities"), the Floating Rate Junior Subordinated
Deferrable Interest Debentures due _________, 2027 of the Corporation, and a
Guarantee of the Corporation with respect to the Capital Securities.

  In rendering our opinion, we have examined an Amended and Restated Declaration
of Trust (the "Trust Agreement") of the Trust among the Corporation, as Sponsor
of the Trust, The Bank of New York, as property trustee, The Bank of New York
(Delaware), as Delaware trustee, and the Administrative Trustees named therein,
and have assumed that the Issuer Trustees will conduct the affairs of the Trust
in accordance with the Trust Agreement.  We hereby confirm the opinions
described under the caption "Certain United States Federal Income Tax
Consequences" in the prospectus (the "Prospectus") that is part of the
Registration Statement.  Capitalized terms used herein but not defined have the
meanings as provided in the Prospectus.
<PAGE>
 
     We hereby consent to the use of our name under the caption "Certain United
States Federal Income Tax Consequences" in the Prospectus.  The issuance of such
a consent does not concede that we are an "Expert" for the purposes of the 1933
Act.


                                    Very truly yours,

                                    /s/ Brown & Wood LLP

                                    BROWN & WOOD LLP



                                       2

<PAGE>
 
                                                                    EXHIBIT 25.1

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


                                    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.)

48 Wall Street, New York, N.Y.                        10286
(Address of principal executive offices)              (Zip code)


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


                             BANKBOSTON CORPORATION
              (Exact name of obligor as specified in its charter)


Massachusetts                                         04-2471221
(State or other jurisdiction of                       (I.R.S. employer
incorporation or organization)                        identification no.)

100 Federal Street
Boston, Massachusetts                                 02110
(Address of principal executive offices)              (Zip code)

                             ______________________

        Floating Rate Junior Subordinated Deferrable Interest Debentures
                      (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.)

                                      -2-
<PAGE>
 
   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.

                                      -3-
<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 28th day of May, 1997.


                                       THE BANK OF NEW YORK



                                       By: /s/  WALTER N. GITLIN
                                           -------------------------
                                         Name:  WALTER N. GITLIN
                                         Title: VICE PRESIDENT

                                      -4-
<PAGE>
 
                                                                       EXHIBIT 7

                      Consolidated Report of Condition of
                             THE BANK OF NEW YORK
                     of 48 Wall Street New York, NY 10286
                    And Foreign and Domestic Subsidiaries.

a member of the Federal Reserve System, at the close of business December 31, 
1996, published in accordance with a call made by the Federal Reserve Bank in 
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........... $  6,024,505
 Interest-bearing balances....................................      808,821
Securities:
 Held-to-maturity securities..................................    1,071,747
 Available-for-sale securities................................    3,105,207
Federal funds sold in domestic offices of the bank............    4,250,941
Loans and lease financing receivables:
 Loans and leases, net of unearned income.....................   31,962,915
 LESS: Allowance for loan and lease losses....................      635,084
 LESS: Allocated transfer risk reserve........................          429
 Loans and leases, net of unearned income, allowance,
  and reserve.................................................   31,327,402
Assets held in trading accounts...............................    1,539,612
Promises and fixed assets (including capitalized leases)......      692,317
Other real estate owned.......................................       22,123
Investments in unconsolidated subsidiaries and
 associated companies.........................................      213,512
Customers' liability to this bank on acceptances
 outstanding..................................................      985,297
Intangible Assets.............................................      590,973
Other assets..................................................    1,487,903
                                                               ------------
Total assets..................................................  552,120,450
                                                               ============
LIABILITIES
Deposits
 In domestic offices.......................................... $ 25,929,642
 Noninterest-bearing..........................................   11,245,050
 Interest-bearing.............................................   14,684,592
 In foreign offices Edge and Agreement subsidiaries
  and IBFs....................................................   12,852,809
 Noninterest-bearing..........................................      552,203
 Interest-bearing.............................................   12,300,606
Federal funds purchased and securities sold under
 agreements to repurchase in domestic offices of the
 bank and of its Edge and Agreement subsidiaries and
 in IBFs.
 Federal funds purchased......................................    1,360,877
 Securities sold under agreements to repurchase...............      226,158
Demand notes issued to the US Treasury........................      204,987
Trading liabilities...........................................    1,437,445
Other borrowed money
 With original maturity of one year or less...................    2,312,556
 With original maturity of more than one year.................       20,766
Bank's liability on acceptances executed and outstanding......    1,014,717
Subordinated notes and debentures.............................    1,014,400
Other liabilities.............................................    1,721,291
                                                               ------------
Total liabilities.............................................   49,095,648
                                                               ------------
EQUITY CAPITAL
Common Stock..................................................      942,284
Surplus.......................................................      731,319
Undivided profits and capital reserves........................    2,354,095
Net unrealized holding gains (losses) on available-
 for-sale securities..........................................        7,030
Cumulative foreign currency transaction adjustments...........       (9,918)
                                                               ------------
Total equity capital..........................................    4,024,812
                                                               ------------
Total liabilities and equity capital.......................... $ 52,120,450
                                                               ============

        

        I, Robert E. Keilman, 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.

                                                   Robert E. Keilman

        We, the undersigned directors, attest to the correctness of the 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

        J. Carter Bacor
        Thomas A. Renya                            Directors
        Allan R. Griffith      

<PAGE>
 
                                                                    EXHIBIT 25.2
================================================================================


                                    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.)

48 Wall Street, New York, N.Y.                        10286
(Address of principal executive offices)              (Zip code)


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


                          BANKBOSTON CAPITAL TRUST III
              (Exact name of obligor as specified in its charter)


Delaware                                              Applied For
(State or other jurisdiction of                       (I.R.S. employer
incorporation or organization)                        identification no.)

100 Federal Street
Boston, Massachusetts                                 02110
(Address of principal executive offices)              (Zip code)

                             ______________________

                        Floating Rate Capital 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.)

                                      -2-
<PAGE>
 
   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.

                                      -3-
<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 28th day of May, 1997.


                                       THE BANK OF NEW YORK



                                       By:     /S/WALTER N. GITLIN
                                           --------------------------
                                           Name:  WALTER N. GITLIN
                                           Title: VICE PRESIDENT
  

                                      -4-
<PAGE>
 

                                                                       EXHIBIT 7

                      Consolidated Report of Condition of
                             THE BANK OF NEW YORK
                     of 48 Wall Street New York, NY 10286
                    And Foreign and Domestic Subsidiaries.

a member of the Federal Reserve System, at the close of business December 31, 
1996, published in accordance with a call made by the Federal Reserve Bank in 
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........... $  6,024,505
 Interest-bearing balances....................................      808,821
Securities:
 Held-to-maturity securities..................................    1,071,747
 Available-for-sale securities................................    3,105,207
Federal funds sold in domestic offices of the bank............    4,250,941
Loans and lease financing receivables:
 Loans and leases, net of unearned income.....................   31,962,915
 LESS: Allowance for loan and lease losses....................      635,084
 LESS: Allocated transfer risk reserve........................          429
 Loans and leases, net of unearned income, allowance,
  and reserve.................................................   31,327,402
Assets held in trading accounts...............................    1,539,612
Promises and fixed assets (including capitalized leases)......      692,317
Other real estate owned.......................................       22,123
Investments in unconsolidated subsidiaries and
 associated companies.........................................      213,512
Customers' liability to this bank on acceptances
 outstanding..................................................      985,297
Intangible Assets.............................................      590,973
Other assets..................................................    1,487,903
                                                               ------------
Total assets..................................................  552,120,450
                                                               ============
LIABILITIES
Deposits
 In domestic offices.......................................... $ 25,929,642
 Noninterest-bearing..........................................   11,245,050
 Interest-bearing.............................................   14,684,592
 In foreign offices Edge and Agreement subsidiaries
  and IBFs....................................................   12,852,809
 Noninterest-bearing..........................................      552,203
 Interest-bearing.............................................   12,300,606
Federal funds purchased and securities sold under
 agreements to repurchase in domestic offices of the
 bank and of its Edge and Agreement subsidiaries and
 in IBFs.
 Federal funds purchased......................................    1,360,877
 Securities sold under agreements to repurchase...............      226,158
Demand notes issued to the US Treasury........................      204,987
Trading liabilities...........................................    1,437,445
Other borrowed money
 With original maturity of one year or less...................    2,312,556
 With original maturity of more than one year.................       20,766
Bank's liability on acceptances executed and outstanding......    1,014,717
Subordinated notes and debentures.............................    1,014,400
Other liabilities.............................................    1,721,291
                                                               ------------
Total liabilities.............................................   49,095,648
                                                               ------------
EQUITY CAPITAL
Common Stock..................................................      942,284
Surplus.......................................................      731,319
Undivided profits and capital reserves........................    2,354,095
Net unrealized holding gains (losses) on available-
 for-sale securities..........................................        7,030
Cumulative foreign currency transaction adjustments...........       (9,918)
                                                               ------------
Total equity capital..........................................    4,024,812
                                                               ------------
Total liabilities and equity capital.......................... $ 52,120,450
                                                               ============

        

        I, Robert E. Keilman, 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.

                                                   Robert E. Keilman

        We, the undersigned directors, attest to the correctness of the 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

        J. Carter Bacor
        Thomas A. Renya                            Directors
        Allan R. Griffith      


<PAGE>
 
                                                                    EXHIBIT 25.3

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


                                    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.)

48 Wall Street, New York, N.Y.                        10286
(Address of principal executive offices)              (Zip code)


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


                             BANKBOSTON CORPORATION
              (Exact name of obligor as specified in its charter)


Massachusetts                                         04-2471221
(State or other jurisdiction of                       (I.R.S. employer
incorporation or organization)                        identification no.)

100 Federal Street
Boston, Massachusetts                                 02110
(Address of principal executive offices)              (Zip code)

                             ______________________

                Guarantee of Floating Rate Capital Securities of
                          BankBoston Capital Trust III
                      (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.)

                                      -2-
<PAGE>
 
   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.

                                      -3-
<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 28th day of May, 1997.


                                       THE BANK OF NEW YORK



                                       By:     /S/WALTER N. GITLIN
                                           --------------------------
                                         Name:  WALTER N. GITLIN
                                         Title: VICE PRESIDENT

                                      -4-
<PAGE>
 
                                                                       EXHIBIT 7

                      Consolidated Report of Condition of
                             THE BANK OF NEW YORK
                     of 48 Wall Street New York, NY 10286
                    And Foreign and Domestic Subsidiaries.

a member of the Federal Reserve System, at the close of business December 31, 
1996, published in accordance with a call made by the Federal Reserve Bank in 
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........... $  6,024,505
 Interest-bearing balances....................................      808,821
Securities:
 Held-to-maturity securities..................................    1,071,747
 Available-for-sale securities................................    3,105,207
Federal funds sold in domestic offices of the bank............    4,250,941
Loans and lease financing receivables:
 Loans and leases, net of unearned income.....................   31,962,915
 LESS: Allowance for loan and lease losses....................      635,084
 LESS: Allocated transfer risk reserve........................          429
 Loans and leases, net of unearned income, allowance,
  and reserve.................................................   31,327,402
Assets held in trading accounts...............................    1,539,612
Promises and fixed assets (including capitalized leases)......      692,317
Other real estate owned.......................................       22,123
Investments in unconsolidated subsidiaries and
 associated companies.........................................      213,512
Customers' liability to this bank on acceptances
 outstanding..................................................      985,297
Intangible Assets.............................................      590,973
Other assets..................................................    1,487,903
                                                               ------------
Total assets..................................................  552,120,450
                                                               ============
LIABILITIES
Deposits
 In domestic offices.......................................... $ 25,929,642
 Noninterest-bearing..........................................   11,245,050
 Interest-bearing.............................................   14,684,592
 In foreign offices Edge and Agreement subsidiaries
  and IBFs....................................................   12,852,809
 Noninterest-bearing..........................................      552,203
 Interest-bearing.............................................   12,300,606
Federal funds purchased and securities sold under
 agreements to repurchase in domestic offices of the
 bank and of its Edge and Agreement subsidiaries and
 in IBFs.
 Federal funds purchased......................................    1,360,877
 Securities sold under agreements to repurchase...............      226,158
Demand notes issued to the US Treasury........................      204,987
Trading liabilities...........................................    1,437,445
Other borrowed money
 With original maturity of one year or less...................    2,312,556
 With original maturity of more than one year.................       20,766
Bank's liability on acceptances executed and outstanding......    1,014,717
Subordinated notes and debentures.............................    1,014,400
Other liabilities.............................................    1,721,291
                                                               ------------
Total liabilities.............................................   49,095,648
                                                               ------------
EQUITY CAPITAL
Common Stock..................................................      942,284
Surplus.......................................................      731,319
Undivided profits and capital reserves........................    2,354,095
Net unrealized holding gains (losses) on available-
 for-sale securities..........................................        7,030
Cumulative foreign currency transaction adjustments...........       (9,918)
                                                               ------------
Total equity capital..........................................    4,024,812
                                                               ------------
Total liabilities and equity capital.......................... $ 52,120,450
                                                               ============

        

        I, Robert E. Keilman, 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.

                                                   Robert E. Keilman

        We, the undersigned directors, attest to the correctness of the 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

        J. Carter Bacor
        Thomas A. Renya                            Directors
        Allan R. Griffith      




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