MERCANTILE BANCORPORATION INC
S-4, 1995-10-23
NATIONAL COMMERCIAL BANKS
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        AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON OCTOBER 23, 1995
                                                       REGISTRATION NO. 33-     
         =======================================================================
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C.  20549
                              --------------------

                                    FORM S-4
                             REGISTRATION STATEMENT
                                     UNDER
                         THE SECURITIES ACT OF 1933
                             --------------------
                        MERCANTILE BANCORPORATION INC.
          (Exact name of Registrant as specified in Its Charter)
  Missouri                        6712                       43-0951744
 (State or Other Jurisdiction of  (Primary Standard          (I.R.S. Employer
 Incorporation or Organization)   Industrial Classification  Identification No.)
                                     Code Number)
                                     P.O. Box 524
                             St. Louis, Missouri 63166-0524
                                    (314) 425-2525
     (Address, Including Zip Code, and Telephone Number, Including Area Code, of
                        Registrant's Principal Executive Offices)
                               --------------------
                                JON W. BILSTROM, ESQ.
                           General Counsel and Secretary
                           Mercantile Bancorporation Inc.
                                   P.O. Box 524
                          St. Louis, Missouri 63166-0524
                                 (314) 425-2525
   (Name, Address, Including Zip Code, and Telephone Number, Including Area
                             Code, of Agent For Service)
                               --------------------
<TABLE>
<CAPTION>
                                   With copies to:
<S>                             <C>                              <C> 
JOHN Q. ARNOLD                  EDWARD D. HERLIHY, ESQ.          JOHN S. ZEILINGER, ESQ.
Chief Financial Officer         Wachtell, Lipton, Rosen & Katz   Baird, Holm, McEachen, 
Mercantile Bancorporation Inc.  51 West 52nd Street              Pedersen, Hamann & Strasheim
P.O. Box 524                    New York, New York 10019-6150    1500 Woodmen Tower
St. Louis, Missouri 63166-0524  (212) 403-1000                   Omaha, Nebraska 68102-2068
(314) 425-2525                                                  (402) 344-0500
</TABLE>
                               --------------------
           Approximate date of commencement of proposed sale to the public:
  As soon as practicable after the effective date of the Registration Statement.

If the securities being registered on this form are being offered in 
connection with the formation of a holding company and there is compliance 
with General Instruction G, check the following box.  [ ]
                               --------------------<PAGE>





<TABLE>
<CAPTION>

                                              CALCULATION OF REGISTRATION FEE
                 ==========================================================================================================
                      TITLE OF EACH                   PROPOSED MAXIMUM    PROPOSED MAXIMUM      AMOUNT OF
                 CLASS OF SECURITIES   AMOUNT TO BE    OFFERING PRICE         AGGREGATE       REGISTRATION
                    TO BE REGISTERED    REGISTERED      PER SHARE(2)      OFFERING PRICE(2)        FEE
                 ----------------------------------------------------------------------------------------
                 <S>                     <C>               <C>             <C>                 <C>
                 Common Stock, $5.00     7,996,952         $43.06          $344,313,200.56     $118,728.69
                      par value(1)        shares
                 ----------------------------------------------------------------------------------------
                 (1)  Includes one attached Preferred Share Purchase Right per share.

                 (2)  Pursuant to Rule 457(f)(1) and 457(c) promulgated under the Securities Act of 1933,
                      as amended, and estimated solely for purposes of calculating the registration fee,
                      the proposed maximum aggregate offering price is $344,313,200.56, which equals (x)
                      the average of the high and low prices of the common stock, without par value
                      ("Hawkeye Common Stock"), of Hawkeye Bancorporation ("Hawkeye"), of $25.1875, as
                      reported on the Nasdaq National Market on October 17, 1995, multiplied by (y) the
                      total number of shares of Hawkeye Common Stock (including shares issuable pursuant
                      to the exercise of outstanding options to purchase Hawkeye Common Stock) to be
                      cancelled in the merger of Hawkeye with and into a subsidiary of Mercantile
                      Bancorporation Inc. (the "Merger").  The proposed maximum offering price per share
                      is equal to the proposed maximum aggregate offering price determined in the manner
                      described in the preceding sentence divided by the maximum number of shares of MBI
                      common stock, $5.00 par value, that could be issued in the Merger.  

                       THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR DATES AS
                      MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL FILE A
                      FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION STATEMENT SHALL
                      THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF THE SECURITIES ACT OF
                      1933, AS AMENDED, OR UNTIL THIS REGISTRATION STATEMENT SHALL BECOME EFFECTIVE ON
                      SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(A), MAY DETERMINE.
                 ==========================================================================================================<PAGE>

</TABLE>





                                              MERCANTILE BANCORPORATION INC.
                                                  CROSS REFERENCE SHEET
                                         PURSUANT TO REGULATION S-K, ITEM 501(B)
<TABLE>
<CAPTION>
    FORM S-4 ITEM                                                    PROXY STATEMENT-PROSPECTUS HEADING

    Information About the Transaction
     <S>                                                             <C>
     1.  Forepart of Registration Statement and Outside Front        Facing Page; Cross Reference Sheet; Outside Front Cover
         Cover Page of Prospectus                                    Page of Proxy Statement/Prospectus


     2.  Inside Front and Outside Back Cover Pages of Prospectus     Available Information; Incorporation of Certain
                                                                     Information by Reference; Table of Contents

     3.  Risk Factors, Ratio of Earnings to Fixed Charges, and       Summary Information; Pro Forma Financial Information
         Other Information

     4.  Terms of Transaction                                        Summary Information; Terms of the Proposed Merger;
                                                                     Certain Federal Income Tax Consequences of the Merger;
                                                                     Dissenters' Rights of Shareholders of Hawkeye;
                                                                     Information Regarding MBI Stock; Supervision and
                                                                     Regulation

     5.  Pro Forma Financial Information                             Summary Information; Pro Forma Financial Information

     6.  Material Contacts with the Company Being Acquired           Summary Information; Terms of the Proposed Merger

     7.  Additional Information Required for Reoffering by Persons   Not Applicable
         and Parties Deemed to be Underwriters

     8.  Interests of Named Experts and Counsel                      Legal Matters

     9.  Disclosure of Commission Position on Indemnification        Not Applicable
         for Securities Act Liabilities

    Information About the Registrant

    10.  Information With Respect to S-3 Registrants                 Incorporation of Certain Information by Reference;
                                                                     Summary Information
    -2-<PAGE>








    11.  Incorporation of Certain Information by Reference           Incorporation of Certain Information by Reference

    12.  Information With Respect to S-2 or S-3 Registrants          Not Applicable

    13.  Incorporation of Certain Information by Reference           Not Applicable

    14.  Information with Respect to Registrants Other Than S-2      Not Applicable
         or S-3  Registrants

    Information About the Company Being Acquired

    15.  Information With Respect to S-3 Companies                   Incorporation of Certain Information by Reference;
                                                                     Summary Information

    16.  Information With Respect to S-2 or S-3 Companies            Not Applicable

    17.  Information With Respect to Companies Other Than S-2 or     Not Applicable
         S-3 Companies

    Voting and Management Information

    18.  Information if Proxies, Consents, or Authorizations         Incorporation of Certain Information by Reference;
         Are to be Solicited                                         Summary Information; Information Regarding Special
                                                                     Meeting; Terms of the Proposed Merger; Other Matters;
                                                                     Stockholder Proposals

    19.  Information if Proxies, Consents, or Authorizations Are     Not Applicable
         Not to be Solicited, or in an Exchange Offer
</TABLE>

















    -3-<PAGE>







                                     SCHEDULE 14A INFORMATION

                   PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES
                             EXCHANGE ACT OF 1934 (AMENDMENT NO.   )


           FILED BY THE REGISTRANT [X]
           FILED BY A PARTY OTHER THAN THE REGISTRANT [ ]

           CHECK THE APPROPRIATE BOX:

           [X]  PRELIMINARY PROXY STATEMENT    [ ]  CONFIDENTIAL, FOR USE OF THE
           [ ]  DEFINITIVE PROXY STATEMENT             COMMISSION ONLY
           [ ]  DEFINITIVE ADDITIONAL MATERIALS
           [ ]  SOLICITING MATERIAL PURSUANT TO RULE 14A-11(C) OR RULE 14A-12


                                      HAWKEYE BANCORPORATION
    ...........................................................................
                         (NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)


                                               N/A
    ...........................................................................
       (NAME OF PERSON(S) FILING PROXY STATEMENT, IF OTHER THAN THE REGISTRANT)


           PAYMENT OF FILING FEE (CHECK THE APPROPRIATE BOX):

           [ ]  $125 PER EXCHANGE ACT RULES 0-11(C)(1)(II), 14A-6(I)(1), OR 14A-
                6(I)(2) OR ITEM 22(A)(2) OF SCHEDULE 14A.
           [ ]  $500 PER EACH PARTY TO THE CONTROVERSY PURSUANT TO EXCHANGE 
                ACT RULE 14A-6(I)(3).
           [X]  FEE COMPUTED ON TABLE BELOW PER EXCHANGE ACT RULES 
                14A-6(I)(4) AND 0-11.
            1)   TITLE OF EACH CLASS OF SECURITIES TO WHICH TRANSACTION APPLIES:
                 Common Stock, without par value ("Hawkeye Common Stock")

            2)   AGGREGATE NUMBER OF SECURITIES TO WHICH TRANSACTION APPLIES:
                 Up to 13,670,003 shares of Hawkeye Common Stock











           -4-<PAGE>







          3)   PER UNIT PRICE OR OTHER UNDERLYING VALUE OF TRANSACTION COMPUTED
               PURSUANT TO EXCHANGE ACT RULE 0-11:  
               The amount on which the filing fee of $68,862.64 is calculated
               was determined pursuant to Rule 0-11(a)(4) and (c) of the
               Securities Exchange Act of 1934, as amended, by multiplying
               1/50th of 1% by an amount equal to the product of (x) $25.1875,
               the average of the high and the low sale prices on October 17,
               1995, of Hawkeye Common Stock, and (y) 13,670,003, the maximum
               number of shares of Hawkeye Common Stock expected to be cancelled
               in the transaction.

          4)   PROPOSED MAXIMUM AGGREGATE VALUE OF TRANSACTION:
               $344,313,200.56

          5)   TOTAL FEE PAID:
               $68,862.64

     [ ]  FEE PAID PREVIOUSLY WITH PRELIMINARY MATERIALS.
     [X]  CHECK BOX IF ANY PART OF THE FEE IS OFFSET AS PROVIDED BY EXCHANGE ACT
          RULE 0-11(A)(2) AND IDENTIFY THE FILING FOR WHICH THE OFFSETTING FEE
          WAS PAID PREVIOUSLY.  IDENTIFY THE PREVIOUS FILING BY REGISTRATION
          STATEMENT NUMBER, OR THE FORM OR SCHEDULE AND THE DATE OF ITS FILING.

          1)   AMOUNT PREVIOUSLY PAID:
               $118,728.69

          2)   FORM, SCHEDULE OR REGISTRATION STATEMENT NO.:
               Registration Statement on Form S-4

          3)   FILING PARTY:
               Mercantile Bancorporation Inc. (Commission File No. 1-11792)

          4)   DATE FILED:
               October 23, 1995

















           -5-<PAGE>







                       [HAWKEYE BANCORPORATION LETTERHEAD]

                             _________________, 1995

         Dear Fellow Shareholders:

                   The Board of Directors cordially invites you to
         attend a Special Meeting of Shareholders of Hawkeye
         Bancorporation ("Hawkeye") to be held at ______ A.M., Central
         Time, on _________________, 1995, at ____________________, Des
         Moines, Iowa.  At this important meeting, you will be asked to
         consider and vote on a proposal to approve and adopt an
         Agreement and Plan of Reorganization, dated August 4, 1995 (the
         "Merger Agreement"), providing for the merger (the "Merger") of
         Hawkeye with and into a wholly owned subsidiary of Mercantile
         Bancorporation Inc. ("MBI").

                   I have enclosed the following items relating to the
         Special Meeting and the Merger:

                   1.  Proxy Statement/Prospectus;

                   2.  Proxy card; and

                   3.  A pre-addressed return envelope to Hawkeye for
                       the proxy card.

         The Proxy Statement/Prospectus and related proxy materials set
         forth, or incorporate by reference, financial data and other
         important information relating to Hawkeye and MBI and describe
         the terms and conditions of the proposed Merger.  The Board of
         Directors requests that you carefully review these materials
         before completing the enclosed proxy card or attending the
         Special Meeting.

                   YOUR BOARD OF DIRECTORS HAS DETERMINED THAT THE TERMS
         OF THE MERGER AGREEMENT AND THE TRANSACTIONS CONTEMPLATED
         THEREBY ARE IN THE BEST INTERESTS OF HAWKEYE AND ITS
         SHAREHOLDERS.  ACCORDINGLY, THE HAWKEYE BOARD OF DIRECTORS
         RECOMMENDS THAT HAWKEYE SHAREHOLDERS VOTE FOR THE APPROVAL AND
         ADOPTION OF THE MERGER AGREEMENT.

                   APPROVAL OF THE MERGER AGREEMENT IS A CONDITION TO
         THE CONSUMMATION OF THE MERGER.  Accordingly, it is important
         that your shares be represented at the Special Meeting, whether
         or not you plan to attend the Special Meeting in person.
         Please complete, sign and date the enclosed proxy card and
         return it to Hawkeye in the enclosed pre-addressed envelope
         which requires no postage if mailed within the United States.
         If you later decide to attend the Special Meeting and vote in
         person,<PAGE>







         or if you wish to revoke your proxy for any reason prior to the
         vote at the Special Meeting, you may do so and your proxy will
         have no further effect.  You may revoke your proxy by
         delivering to the Secretary of Hawkeye a written notice of
         revocation bearing a later date than the proxy, or any later
         dated proxy relating to the same shares, or by attending the
         Special Meeting and voting in person.  Attendance at the
         Special Meeting will not in itself constitute the revocation of
         a proxy.

                   If you need assistance in completing your proxy card
         or if you have any questions about the Proxy Statement/
         Prospectus, please feel free to contact Pamela J. Larsen at
         (515) 284-1930.


                        Sincerely,



                        Robert W. Murray
                        President and Chief Executive Officer





























         -2-<PAGE>







                              HAWKEYE BANCORPORATION
                              222 Equitable Building
                                604 Locust Street
                           Des Moines, Iowa  50309-3723

                    NOTICE OF SPECIAL MEETING OF SHAREHOLDERS
                                    To Be Held
                            ___________________, 1995


         TO THE SHAREHOLDERS OF HAWKEYE BANCORPORATION:

                   Notice is hereby given that a Special Meeting of
         Shareholders of HAWKEYE BANCORPORATION, an Iowa corporation
         ("Hawkeye"), will be held at ____________________, Des Moines,
         Iowa, on ________________, 1995, at ______ A.M., Central Time,
         for the following purposes:

                   (1)  To consider and vote on a proposal to approve
         and adopt the Agreement and Plan of Reorganization, dated
         August 4, 1995 (the "Merger Agreement"), by and between
         Mercantile Bancorporation Inc., a Missouri corporation ("MBI"),
         and Hawkeye, pursuant to which, among other things, (i) Hawkeye
         will be merged (the "Merger") with and into Mercantile
         Bancorporation Inc. of Iowa, an Iowa corporation and a wholly
         owned subsidiary of MBI, with the result that the business and
         operations of Hawkeye will be continued through such wholly
         owned subsidiary, and (ii) upon consummation of the Merger,
         each outstanding share of Hawkeye common stock, without par
         value ("Hawkeye Common Stock"), other than shares held by
         Hawkeye, MBI or any of their respective wholly owned
         subsidiaries, in each case other than in a fiduciary capacity
         or as a result of debts previously contracted, all of which
         will be cancelled in the Merger, and other than shares held by
         shareholders of Hawkeye who exercise their dissenters' rights
         under the Iowa Business Corporation Act, will be converted into
         the right to receive .585 of a share of MBI common stock, par
         value $5.00 per share ("MBI Common Stock"), with cash in lieu
         of fractional shares, as set forth in detail in the attached
         Proxy Statement/Prospectus.

                   (2)  To transact such other business as may properly
         come before the Special Meeting or any adjournment or
         postponement thereof.

                   The record date for determining the holders of
         Hawkeye Common Stock entitled to receive notice of, and to vote
         at, the Special Meeting or any adjournment or postponement
         thereof has been fixed as of the close of business on
         _________, 1995.  Approval by the Hawkeye shareholders of the
         Merger Agreement<PAGE>







         requires the affirmative vote of the holders of a majority of
         the outstanding shares of Hawkeye Common Stock entitled to vote
         at the meeting.

                   Any holder of Hawkeye Common Stock who (1) files with
         Hawkeye prior to the Special Meeting a written notice of the
         shareholder's intent to demand payment for the shareholder's
         shares, (2) does not vote in favor of the Merger, and (3)
         demands payment of the fair value of the shares, shall be
         entitled to payment of the fair value of the shareholder's
         shares of Hawkeye Common Stock, under the applicable provisions
         of Division XIII of the Iowa Business Corporation Act, as set
         forth in Annex A to the attached Proxy Statement/Prospectus.

                   Information regarding the Merger and related matters
         is contained in the accompanying Proxy Statement/Prospectus and
         the annexes thereto, which are incorporated by reference herein
         and form a part of this Notice.

                   WHETHER OR NOT YOU PLAN TO ATTEND THE SPECIAL
         MEETING, PLEASE COMPLETE, SIGN AND DATE THE ENCLOSED PROXY CARD
         AND RETURN IT PROMPTLY IN THE ENCLOSED ENVELOPE.  THE PROXY MAY
         BE REVOKED AT ANY TIME PRIOR TO THE VOTE AT THE SPECIAL MEETING
         BY FOLLOWING THE PROCEDURES SET FORTH IN THE ACCOMPANYING PROXY
         STATEMENT/PROSPECTUS.

                   THE BOARD OF DIRECTORS OF HAWKEYE HAS DETERMINED THAT
         THE TERMS OF THE MERGER AGREEMENT AND THE TRANSACTIONS
         CONTEMPLATED THEREBY ARE IN THE BEST INTERESTS OF HAWKEYE AND
         ITS SHAREHOLDERS.  ACCORDINGLY, THE HAWKEYE BOARD OF DIRECTORS
         RECOMMENDS THAT HAWKEYE SHAREHOLDERS VOTE FOR THE APPROVAL AND
         ADOPTION OF THE MERGER AGREEMENT.

                             BY ORDER OF THE BOARD OF DIRECTORS

                             __________________________________
                             Secretary


         Des Moines, Iowa
         ____________________, 1995


              PLEASE DO NOT SEND ANY SHARE CERTIFICATES AT THIS TIME







                                       -2-<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.  THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL 
OR THE SOLICITATION OF AN 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.


                  SUBJECT TO COMPLETION, DATED OCTOBER 23, 1995


                          MERCANTILE BANCORPORATION INC.

                                    PROSPECTUS
                               ____________________

                              HAWKEYE BANCORPORATION

                                 PROXY STATEMENT
                               ____________________


                   This Prospectus of Mercantile Bancorporation Inc., a
         Missouri corporation ("MBI"), relates to up to 7,996,952 shares
         of common stock, par value $5.00 per share, and attached
         preferred share purchase rights (the "Rights"), of MBI (the
         Common Stock and Rights are collectively referred to herein as
         the "MBI Common Stock") to be issued to the shareholders of
         Hawkeye Bancorporation, an Iowa corporation ("Hawkeye"), upon
         consummation of the proposed merger (the "Merger") of Hawkeye
         with and into Mercantile Bancorporation Inc. of Iowa, an Iowa
         corporation ("Merger Sub") and a wholly owned subsidiary of
         MBI.  The Merger will be consummated pursuant to the Agreement
         and Plan of Reorganization, dated August 4, 1995 (the "Merger
         Agreement"), by and between MBI and Hawkeye, upon the terms and
         subject to the conditions thereof.  This Prospectus also serves
         as the Proxy Statement of Hawkeye for use in connection with
         the solicitation of proxies by the Board of Directors of
         Hawkeye to be used at the Special Meeting of Shareholders of
         Hawkeye (the "Special Meeting") to be held on _______, 1995, at
         ______ A.M., Central Time, at _______, Des Moines, Iowa, to
         approve and adopt the Merger Agreement.

                   Upon consummation of the Merger, among other things,
         each outstanding share of Hawkeye common stock, without par
         value ("Hawkeye Common Stock"), other than shares held by
         Hawkeye, MBI or any of their respective wholly owned
         subsidiaries, in each case other than in a fiduciary capacity
         or as a result of debts previously contracted, all of which
         will be cancelled in the Merger, and other than shares held by
         shareholders of Hawkeye who exercise their dissenters' rights
         under the Iowa Business Corporation Act (the "Iowa Act"), will
         be converted into the right to receive .585 of a  share of MBI
         Common Stock, with cash in lieu of fractional shares.  See
         "TERMS OF THE PROPOSED MERGER" and "DISSENTERS' RIGHTS OF
         SHAREHOLDERS OF HAWKEYE."<PAGE>







                   MBI Common Stock is quoted on the New York Stock
         Exchange (the "NYSE") under the symbol "MTL."  On ________,
         1995, the last sale price of MBI Common Stock as reported on
         the NYSE Composite Tape was $_____.  Hawkeye Common Stock is
         quoted on the Nasdaq National Market ("NASDAQ/NM") under the
         symbol "HWKB."  On ______, 1995 the last sale price for Hawkeye
         Common Stock as reported on the NASDAQ/NM was $_____.

                   This Proxy Statement/Prospectus, the Letter to
         Hawkeye shareholders, the Notice of Special Meeting and the
         form of proxy are first being mailed to the shareholders of
         Hawkeye on or about            , 1995.


         THE SECURITIES TO BE ISSUED PURSUANT TO THIS PROXY STATEMENT/
            PROSPECTUS HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE
            SECURITIES AND EXCHANGE COMMISSION (THE "COMMISSION") OR
           ANY STATE SECURITIES COMMISSION NOR HAS THE COMMISSION OR
            ANY STATE SECURITIES COMMISSION PASSED UPON THE ACCURACY
                OR ADEQUACY OF THIS PROXY STATEMENT/PROSPECTUS.
                     ANY REPRESENTATION TO THE CONTRARY IS
                              A CRIMINAL OFFENSE.

         THE SHARES OF MBI COMMON STOCK OFFERED HEREBY ARE NOT SAVINGS
             ACCOUNTS, DEPOSITS OR OTHER OBLIGATIONS OF ANY BANK OR
                 SAVINGS ASSOCIATION AND ARE NOT INSURED BY THE
                     FEDERAL DEPOSIT INSURANCE CORPORATION,
                      THE BANK INSURANCE FUND, THE SAVINGS
                       ASSOCIATION INSURANCE FUND OR ANY
                           OTHER GOVERNMENTAL AGENCY.

                              ____________________

       THE DATE OF THIS PROXY STATEMENT/PROSPECTUS IS ____________,
       1995.<PAGE>







                              AVAILABLE INFORMATION

                   Each of MBI and Hawkeye 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 Commission.  Such reports, proxy
         statements and other information concerning either MBI or
         Hawkeye can be inspected and copied at the public reference
         facilities maintained by the Commission at Room 1024, Judiciary
         Plaza, 450 Fifth Street, N.W., Washington, D.C. 20549 and at
         the Commission's Regional Offices in New York (Suite 1300,
         Seven World Trade Center, New York, New York 10048) and Chicago
         (Suite 1400, Citicorp Center, 500 West Madison Street, Chicago,
         Illinois 60661).  Copies of such material can also be obtained
         from the Public Reference Section of the Commission at 450
         Fifth Street, N.W., Washington, D.C. 20549, at prescribed
         rates.  MBI Common Stock is listed on the NYSE, and such
         reports, proxy statements and other information concerning MBI
         are available for inspection and copying at the offices of the
         NYSE, 20 Broad Street, New York, New York 10005.  Hawkeye
         Common Stock is quoted on the NASDAQ/NM, and such reports,
         proxy statements and other information concerning Hawkeye are
         available for inspection and copying at the Public Reference
         section of the NASDAQ/NM at 1737 K Street, N.W., Washington,
         D.C. 20006.

                   This Proxy Statement/Prospectus does not contain all
         of the information set forth in the Registration Statement on
         Form S-4 and exhibits thereto (together with any amendments
         thereto, the "Registration Statement") covering the securities
         offered hereby which has been filed by MBI with the Commission
         under the Securities Act of 1933, as amended (the "Securities
         Act").  As permitted by the rules and regulations of the
         Commission, this Proxy Statement/Prospectus omits certain
         information contained or incorporated by reference in the
         Registration Statement.  Reference is hereby made to the
         Registration Statement for further information with respect to
         MBI and the securities offered hereby.  Such additional
         information may be obtained from the Commission's principal
         office in Washington, D.C.  Statements contained in this Proxy
         Statement/Prospectus or in any document incorporated by
         reference in this Proxy Statement/Prospectus provide a fair
         summary of the contents of any contract or other document
         referenced herein or therein but are not necessarily complete,
         and in each instance reference is made to the copy of such
         contract or other document filed as an exhibit to the
         Registration Statement or such other document, each such
         statement being qualified in all respects by such reference.  


                                       -i-<PAGE>







                INCORPORATION OF CERTAIN INFORMATION BY REFERENCE

                   THIS PROXY STATEMENT/PROSPECTUS INCORPORATES
         DOCUMENTS BY REFERENCE WHICH ARE NOT PRESENTED HEREIN OR
         DELIVERED HEREWITH.  COPIES OF THESE DOCUMENTS (EXCLUDING
         EXHIBITS UNLESS SPECIFICALLY INCORPORATED BY REFERENCE HEREIN
         OR IN SUCH DOCUMENTS) ARE AVAILABLE, WITHOUT CHARGE, TO ANY
         PERSON TO WHOM THIS PROXY STATEMENT/PROSPECTUS IS DELIVERED
         UPON WRITTEN OR ORAL REQUEST TO THE FOLLOWING:  

                   MBI DOCUMENTS             HAWKEYE DOCUMENTS

             JON W. BILSTROM                 R. DOUGLAS FISHER
             GENERAL COUNSEL                 EXECUTIVE VICE PRESIDENT 
               AND SECRETARY                   AND SECRETARY
             MERCANTILE BANCORPORATION INC.  HAWKEYE BANCORPORATION
             P.O. BOX 524                    222 EQUITABLE BUILDING
             ST. LOUIS, MISSOURI 63166-0524  604 LOCUST STREET
             (314) 425-2525                  DES MOINES, IOWA 50309-3723
                                             (515) 284-1930

         IN ORDER TO ENSURE TIMELY DELIVERY OF SUCH DOCUMENTS, A REQUEST
         MUST BE RECEIVED NO LATER THAN ________, 1995 [DATE THAT IS
         FIVE BUSINESS DAYS PRIOR TO THE DATE OF THE SPECIAL MEETING].

                   The following documents filed with the Commission by
         MBI under the Exchange Act are incorporated herein by
         reference:

                   (a)  MBI's Annual Report on Form 10-K (Commission
                        File No. 1-11792) for the year ended December
                        31, 1994, as amended by Form 10K/A (Amendment
                        No. 1) dated June 29, 1995 (as amended, the
                        "1994 MBI Form 10-K").

                   (b)  MBI's Quarterly Reports on Form 10-Q (Commission
                        File No. 1-11792) for the quarters ended March
                        31 and June 30, 1995.

                   (c)  The information contained in MBI's Proxy
                        Statement dated March 24, 1995 for its Annual
                        Meeting of Shareholders held on April 27, 1995
                        that has been incorporated by reference in the
                        1994 MBI Form 10-K.

                   (d)  MBI's Current Reports on Form 8-K (Commission
                        File No. 1-11792) dated May 1, May 31 and August
                        4, 1995.



                                       -ii-<PAGE>







                   (e)  The description of MBI Common Stock set forth in
                        Item 1 of MBI's Registration Statement on Form
                        8-A (Commission File No. 1-11792), dated March
                        5, 1993, and any amendment or report filed for
                        the purpose of updating such description.

                   (f)  The description of the Rights set forth in Item
                        1 of MBI's Registration Statement on Form 8-A
                        (Commission File No. 1-11792), dated March 5,
                        1993, and any amendment or report filed for the
                        purpose of updating such description.

                   The following documents filed with the Commission by
         Hawkeye under the Exchange Act are incorporated herein by
         reference:

                   (a)  Hawkeye's Annual Report on Form 10-K (Commission
                        File No. 0-4742) for the year ended December 31,
                        1994 (the "1994 Hawkeye Form 10-K").

                   (b)  Hawkeye's Quarterly Reports on Form 10-Q
                        (Commission File No. 0-4742) for the quarters
                        ended March 31 and June 30, 1995.

                   (c)  The information contained in Hawkeye's Proxy
                        Statement dated March 20, 1995 for its Annual
                        Meeting of Shareholders held on April 18, 1995
                        that has been incorporated by reference in the
                        1994 Hawkeye Form 10-K.

                   (d)  Hawkeye's Current Reports on Form 8-K
                        (Commission File No. 0-4742) dated July 18 and
                        August 4, 1995.

                   All documents filed with the Commission by MBI or
         Hawkeye pursuant to Sections 13(a), 13(c), 14 or 15(d) of the
         Exchange Act after the date of this Proxy Statement/Prospectus
         and prior to the date of the Special Meeting shall be deemed to
         be incorporated by reference herein and made a part hereof from
         the date any such document is filed.  The information relating
         to MBI and Hawkeye contained in this Proxy Statement/Prospectus
         does not purport to be complete and should be read together
         with the information in the documents incorporated by reference
         herein.  Any statement contained herein or in a document
         incorporated or deemed to be incorporated herein by reference
         shall be deemed to be modified or superseded for all purposes
         to the extent that a statement contained herein or in any other
         subsequently filed document incorporated or deemed to be
         incorporated by reference herein modifies or supersedes such
         statement.  Any such statement so modified or superseded shall 

                                      -iii-<PAGE>







         not be deemed, except as so modified or superseded, to
         constitute a part hereof.

                   Any statements contained in this Proxy Statement/
         Prospectus involving matters of opinion, whether or not
         expressly so stated, are intended as such and not as
         representations of fact.

                   NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION
         OR TO MAKE ANY REPRESENTATION NOT CONTAINED IN THIS PROXY
         STATEMENT/PROSPECTUS OR IN THE DOCUMENTS INCORPORATED BY
         REFERENCE HEREIN AND, IF GIVEN OR MADE, SUCH INFORMATION OR
         REPRESENTATION MUST NOT BE RELIED UPON AS HAVING BEEN
         AUTHORIZED BY MBI OR HAWKEYE.  THIS PROXY STATEMENT/PROSPECTUS
         DOES NOT CONSTITUTE AN OFFER TO SELL, OR A SOLICITATION OF AN
         OFFER TO BUY, ANY SECURITIES, OR THE SOLICITATION OF A PROXY,
         IN ANY JURISDICTION IN WHICH, OR FROM ANY PERSON TO WHOM, IT IS
         UNLAWFUL TO MAKE SUCH OFFER, SOLICITATION OF AN OFFER OR PROXY
         SOLICITATION.  NEITHER THE DELIVERY OF THIS PROXY STATEMENT/
         PROSPECTUS NOR ANY DISTRIBUTION OF THE SECURITIES TO WHICH IT
         RELATES SHALL IMPLY OR CREATE AN IMPLICATION THAT THERE HAS
         BEEN NO CHANGE IN THE AFFAIRS OF MBI OR HAWKEYE OR ANY OF THEIR
         RESPECTIVE SUBSIDIARIES OR IN THE INFORMATION SET FORTH OR
         INCORPORATED BY REFERENCE HEREIN SUBSEQUENT TO THE DATE HEREOF.



























                                       -iv-<PAGE>







                                TABLE OF CONTENTS

                                                                    PAGE

         AVAILABLE INFORMATION....................................    i

         INCORPORATION OF CERTAIN INFORMATION BY REFERENCE........   ii

         SUMMARY INFORMATION......................................    1
           Business of MBI........................................    1
           Business of Merger Sub.................................    2
           Business of Hawkeye....................................    2
           Special Meeting of Hawkeye Shareholders................    3
           The Proposed Merger....................................    4
           Stock Option Agreement.................................    5
           Support Agreements.....................................    5
           Reasons for the Merger; Hawkeye Board Recommendation...    6
           Opinion of Hawkeye's Financial Advisor.................    6
           Interests of Certain Persons in the Merger.............    7 
           Fractional Shares......................................    8
           Regulatory Approval....................................    8
           Waiver and Amendment...................................    9
           Accounting Treatment...................................    9
           Employee Stock Options and Stock Appreciation Rights...    9
           Federal Income Tax Consequences in General.............   10
           Dissenters' Rights.....................................   10
           Market and Market Prices...............................   11
           Comparative Unaudited Per Share Data...................   13
           Summary Financial Data.................................   15

         INFORMATION REGARDING SPECIAL MEETING....................   18
           General................................................   18
           Date, Time and Place...................................   18
           Record Date; Vote Required.............................   18
           Voting and Revocation of Proxies.......................   19
           Solicitation of Proxies................................   20

         TERMS OF THE PROPOSED MERGER.............................   21
           General Description of the Merger......................   21
           Stock Option Agreement.................................   22
           Support Agreements.....................................   25
           Background and Reasons for the Merger; Hawkeye Board
             Recommendation.......................................   26
           Opinion of Hawkeye's Financial Advisor ................   30
           Interests of Certain Persons in the Merger.............   38
           Conditions of the Merger...............................   40
           Termination of the Merger Agreement....................   42
           Closing and Effective Time.............................   42
           Surrender of Hawkeye Stock Certificates and Receipt


                                       -v-<PAGE>







             of MBI Capital Stock.................................   43
           Fractional Shares......................................   45
           Regulatory Approval....................................   45
           Business Pending the Merger............................   46
           Bank Minority Shares...................................   50
           Waiver and Amendment...................................   50
           Accounting Treatment...................................   50
           Management and Operations After the Merger.............   51
           Employee Benefits......................................   51

         CERTAIN FEDERAL INCOME TAX CONSEQUENCES OF THE MERGER....   53

         DISSENTERS' RIGHTS OF SHAREHOLDERS OF HAWKEYE............   56

         PRO FORMA FINANCIAL INFORMATION..........................   59
           Comparative Unaudited Per Share Data...................   59
           Pro Forma Combined Consolidated Financial
             Statements (Unaudited)...............................   62

         INFORMATION REGARDING MBI STOCK..........................   71
           Description of MBI Common Stock and Attached
             Preferred Share Purchase Rights......................   71
           Restrictions on Resale of MBI Capital Stock 
             by Affiliates; Affiliate Agreements..................   74
           Comparison of the Rights of Shareholders of
             MBI and Hawkeye......................................   74

         SUPERVISION AND REGULATION...............................   79
           General................................................   79
           Certain Transactions with Affiliates...................   80
           Payment of Dividends...................................   80
           Capital Adequacy.......................................   81
           Support of Subsidiary Banks............................   82
           Recent Legislation.....................................   82

         LEGAL MATTERS............................................   88

         EXPERTS..................................................   88

         OTHER MATTERS............................................   88

         STOCKHOLDER PROPOSALS....................................   88

         ANNEXES
           Annex A - Dissenters' Rights Provisions Under the Iowa
                     Business Corporation Act.....................  A-1

           Annex B - Opinion of Donaldson, Lufkin & Jenrette 
                     Securities Corporation, 
                     dated _______, 1995..........................  B-1

                                       -vi-<PAGE>







                               SUMMARY INFORMATION

                   THE FOLLOWING IS A SUMMARY OF CERTAIN TERMS OF THE
         MERGER AND RELATED INFORMATION DISCUSSED ELSEWHERE IN THIS
         PROXY STATEMENT/PROSPECTUS, IS NOT INTENDED TO BE COMPLETE AND
         IS QUALIFIED IN ALL RESPECTS BY THE MORE DETAILED INFORMATION
         INCLUDED IN THIS PROXY STATEMENT/PROSPECTUS AND THE DOCUMENTS
         INCORPORATED HEREIN BY REFERENCE.  AS USED IN THIS PROXY
         STATEMENT/PROSPECTUS, THE TERMS "MBI" AND "HAWKEYE" REFER TO
         SUCH CORPORATIONS, RESPECTIVELY, AND WHERE THE CONTEXT
         REQUIRES, SUCH CORPORATIONS AND THEIR RESPECTIVE SUBSIDIARIES
         ON A CONSOLIDATED BASIS.  SHAREHOLDERS OF HAWKEYE ARE URGED TO
         READ AND CONSIDER CAREFULLY ALL OF THE INFORMATION CONTAINED OR
         INCORPORATED BY REFERENCE IN THIS PROXY STATEMENT/PROSPECTUS
         AND THE ANNEXES HERETO.  ALL INFORMATION CONCERNING MBI
         INCLUDED IN THIS PROXY STATEMENT/PROSPECTUS HAS BEEN FURNISHED
         BY MBI AND ALL INFORMATION CONCERNING HAWKEYE INCLUDED IN THIS
         PROXY STATEMENT/PROSPECTUS HAS BEEN FURNISHED BY HAWKEYE.
         NEITHER MBI NOR HAWKEYE WARRANTS THE ACCURACY OR COMPLETENESS
         OF INFORMATION RELATING TO THE OTHER.

         BUSINESS OF MBI

                   MBI, a Missouri corporation, was organized in 1970
         and is a registered bank holding company under the federal Bank
         Holding Company Act of 1956, as amended (the "BHCA").  As of
         September 30, 1995, MBI owned, directly or indirectly, all of
         the capital stock (except for a small minority interest in one
         bank) of Mercantile Bank of St. Louis National Association, 51
         other commercial banks and one federally chartered thrift that
         operated from 322 banking offices and 316 Fingertip Banking
         automated teller machines, including 37 off-premises machines,
         located throughout Missouri, southern Illinois, northern Iowa,
         northern Arkansas and eastern Kansas.  MBI's services
         concentrate in three major lines of business -- consumer,
         corporate, and trust and investment advisory services.  MBI
         also operates non-banking subsidiaries that provide related
         financial services, including investment management, brokerage
         services and asset-based lending.  As of September 30, 1995,
         MBI reported, on a consolidated basis, total assets of $16.0
         billion, total deposits of $11.8 billion, total loans of $10.6
         billion and shareholders' equity of $1.4 billion.  As of
         September 30, 1995, MBI had 55,333,878 shares of MBI Common
         Stock issued and outstanding and 14,806 shares of MBI preferred
         stock, without par value ("MBI Preferred Stock"), issued and
         outstanding.  

                   MBI's principal executive offices are located at One
         Mercantile Center, St. Louis, Missouri 63101 and its telephone
         number is (314) 425-2525.<PAGE>







                   For additional information, see "TERMS OF THE
         PROPOSED MERGER," "SUPERVISION AND REGULATION," "PRO FORMA
         FINANCIAL INFORMATION" and "INCORPORATION OF CERTAIN
         INFORMATION BY REFERENCE."

         BUSINESS OF MERGER SUB

                   Merger Sub, an Iowa corporation, was organized in
         1993 as a wholly owned subsidiary of MBI.  Merger Sub is a
         registered bank holding company under the BHCA which currently
         owns all of the stock of one bank and one savings association.
         Merger Sub will be the surviving corporation upon consummation
         of the Merger.

                   The principal executive offices of Merger Sub are
         located at One Mercantile Center, St. Louis, Missouri 63101 and
         its telephone number is (314) 425-2525.

         BUSINESS OF HAWKEYE

                   Hawkeye, an Iowa corporation, was organized in 1966
         and is a registered bank holding company under the BHCA.  As of
         September 30, 1995, Hawkeye owned controlling interests in 23
         commercial bank subsidiaries and three non-bank subsidiaries
         that operated from 65 locations throughout Iowa.  Hawkeye's
         bank subsidiaries are located primarily in county seat or local
         trade center communities where agriculture is the primary
         industry and provide a broad range of commercial bank financial
         services to business customers and a variety of consumer
         banking services to individual customers.  Certain of the bank
         subsidiaries also provide trust services.  Hawkeye's non-bank
         subsidiaries provide related financial services, including
         centralized proof and accounting services for Hawkeye bank
         subsidiaries, equipment leasing and funding and servicing of
         government guaranteed FMHA loans.  

                   As of September 30, 1995, Hawkeye reported, on a
         consolidated basis, total assets of $2.0 billion, total
         deposits of $1.7 billion, total loans of $1.3 billion and
         shareholders' equity of $192.8 million.  As of September 30,
         1995, Hawkeye had 13,461,373 shares of Hawkeye Common Stock
         issued and outstanding and no shares of Hawkeye preferred stock
         issued and outstanding.  

         Hawkeye's principal executive offices are located at 222
         Equitable Building, 604 Locust Street, Des Moines, Iowa  50309
         and its telephone number is (515) 284-1930.


                                       -2-<PAGE>







                   For additional information, see "TERMS OF THE
         PROPOSED MERGER," "SUPERVISION AND REGULATION," "PRO FORMA
         FINANCIAL INFORMATION" and "INCORPORATION OF CERTAIN
         INFORMATION BY REFERENCE."

         SPECIAL MEETING OF HAWKEYE SHAREHOLDERS

                   The Special Meeting will be held at _____________,
         Des Moines, Iowa, on ______________, 1995, at ______ A.M.,
         Central Time, at which the shareholders of Hawkeye will
         consider and vote on a proposal to approve and adopt the Merger
         Agreement and will transact such other business as may properly
         come before the Special Meeting or any adjournment or
         postponement thereof.  Approval by the Hawkeye shareholders of
         the Merger Agreement requires the affirmative vote of the
         holders of a majority of the outstanding shares of Hawkeye
         Common Stock entitled to vote at the meeting (the "Shareholder
         Approval").  Only holders of record of Hawkeye Common Stock at
         the close of business on __________, 1995 (the "Record Date"),
         will be entitled to notice of, and to vote at, the Special
         Meeting.  At such date, there  were __________ shares of
         Hawkeye Common Stock outstanding held by approximately ____
         holders of record.  See "INFORMATION REGARDING SPECIAL
         MEETING."

                   As of the Record Date, directors and executive
         officers of Hawkeye and certain of their affiliates owned
         beneficially an aggregate of __________ shares of Hawkeye
         Common Stock, or approximately ______% of the shares entitled
         to vote at the Special Meeting.  All of Hawkeye's directors and
         executive officers and certain of their affiliates have
         indicated their intention to vote their shares of Hawkeye
         Common Stock for the approval of the Merger Agreement.  In
         addition, all of the directors of Hawkeye, who as of the Record
         Date beneficially owned in the aggregate approximately ___% of
         the outstanding shares of Hawkeye Common Stock, have each
         agreed pursuant to a Support Agreement to vote all shares of
         Hawkeye Common Stock beneficially owned by such person, or over
         which such person has voting power or control, to approve the
         Merger Agreement.  See "INFORMATION REGARDING SPECIAL MEETING"
         and "TERMS OF THE PROPOSED MERGER -- Support Agreements."

                   Any shareholder of Hawkeye giving a proxy may revoke
         it at any time prior to the vote at the Special Meeting.
         Shareholders of Hawkeye wishing to revoke a proxy prior to the
         vote may do so by delivering to the Secretary of Hawkeye at 222 
         Equitable Building, 604 Locust Street, Des Moines, Iowa 50309-
         3723 a written notice of revocation bearing a later date than
         the proxy or any later dated proxy relating to the same shares,

                                       -3-<PAGE>







         or by attending the Special Meeting and voting in person.
         Attendance at the Special Meeting will not in itself constitute
         the revocation of a proxy.

                   THE BOARD OF DIRECTORS OF HAWKEYE HAS DETERMINED THAT
         THE TERMS OF THE MERGER AGREEMENT AND THE TRANSACTIONS
         CONTEMPLATED THEREBY ARE IN THE BEST INTERESTS OF HAWKEYE AND
         ITS SHAREHOLDERS.  ACCORDINGLY, THE HAWKEYE BOARD OF DIRECTORS
         RECOMMENDS THAT HAWKEYE SHAREHOLDERS VOTE FOR THE APPROVAL AND
         ADOPTION OF THE MERGER AGREEMENT.

         THE PROPOSED MERGER

                   Subject to the satisfaction of the terms and
         conditions set forth in the Merger Agreement described below,
         Hawkeye will merge with and into Merger Sub.  Upon consummation
         of the Merger, Hawkeye's corporate existence will terminate,
         with Merger Sub continuing as the surviving corporation, and
         each outstanding share of Hawkeye Common Stock, other than
         shares held by Hawkeye, MBI or any of their respective wholly
         owned subsidiaries, in each case other than in a fiduciary
         capacity or as a result of debts previously contracted, all of
         which will be cancelled in the Merger, and other than shares
         held by shareholders of Hawkeye who exercise their dissenters'
         rights under the Iowa Act, will be converted into the right to
         receive .585 (the "Exchange Ratio") of a share of MBI Common Stock,
         with cash in lieu of fractional shares (together, the "Merger
         Consideration").  See "TERMS OF THE PROPOSED MERGER" and
         DISSENTERS' RIGHTS OF SHAREHOLDERS OF HAWKEYE." 

                   Consummation of the Merger is subject to certain
         terms and conditions, including, among other things, the
         approval of the Merger Agreement by the affirmative vote of the
         holders of a majority of the outstanding shares of Hawkeye
         Common Stock entitled to vote at the Special Meeting and
         receipt of all requisite regulatory approvals.  See "TERMS OF
         THE PROPOSED MERGER -- Conditions of the Merger" and "--
         Regulatory Approval."  The Merger will be consummated and
         become effective on the date and at the time (the "Effective
         Time") that the articles of merger are filed with the Iowa
         Secretary of State.

                   Unless the parties otherwise agree, the closing (the
         "Closing") of the Merger shall take place at 10:00 A.M., local
         time, on the date (the "Closing Date") on which the Effective
         Time of the Merger occurs, which shall be such date as MBI
         shall notify Hawkeye in writing but (i) not earlier than the
         approval by Hawkeye shareholders of the Merger Agreement and 
         the receipt of all requisite regulatory approvals (the
         "Approval Date"), and (ii) not later than the first business
         day

                                       -4-<PAGE>







         of the first full calendar month commencing at least five
         business days after the Approval Date.  See "TERMS OF THE
         PROPOSED MERGER -- Effective Time."

                   The Merger Agreement may be terminated at any time
         prior to the Effective Time by the mutual consent of the
         parties or by either party upon the occurrence of certain
         events or if the Merger is not consummated by August 4, 1996.
         See "TERMS OF THE PROPOSED MERGER -- Termination of the Merger
         Agreement."

         STOCK OPTION AGREEMENT

                   In connection with the execution of the Merger
         Agreement, MBI and Hawkeye entered into the Stock Option
         Agreement, dated August 4, 1995 (the "Stock Option Agreement"),
         pursuant to which Hawkeye has issued MBI an option (the
         "Option") to purchase up to 2,678,000 shares of Hawkeye Common
         Stock (or ______% of the outstanding shares of Hawkeye Common
         Stock as of the Record Date, without including any shares
         subject to or issued pursuant to the Option) at an exercise
         price of $22 per share.  The Option is exercisable upon the
         occurrence of certain events and provides MBI the right, under
         certain circumstances, to require Hawkeye to purchase for cash
         the unexercised portion of the Option and all shares of Hawkeye
         Common Stock purchased by MBI pursuant thereto.  The Option,
         which MBI required that Hawkeye grant as a condition to MBI's
         entering into the Merger Agreement, may increase the likelihood
         of consummation of the Merger.  See "TERMS OF THE PROPOSED
         MERGER -- Stock Option Agreement."

         SUPPORT AGREEMENTS

                   Concurrently with the execution of the Merger
         Agreement, all of the directors of Hawkeye, who as of the
         Record Date beneficially owned in the aggregate approximately
         __% of the outstanding shares of Hawkeye Common Stock (each, a
         "Supporting Stockholder" and together, the "Supporting
         Stockholders"), executed separate Support Agreements with MBI
         pursuant to which each Supporting Stockholder agreed, among
         other things, to vote all shares of Hawkeye Common Stock
         beneficially owned by the Supporting Stockholder, or over which
         the Supporting Stockholder has voting power or control,
         directly or indirectly, to approve the Merger Agreement.  Each
         Supporting Stockholder also thereby agreed, among other things,
         to not, and to not permit any company, trust or other entity
         controlled by such Supporting Stockholder to, (i) contract to 
         sell, sell or otherwise transfer or dispose of any shares of
         Hawkeye Common Stock owned by the Supporting Stockholder, other
         than pursuant to the Merger or with MBI's prior written
         consent, or

                                       -5-<PAGE>







         (ii) initiate, solicit or encourage any discussions, inquiries
         or proposals with any third party relating to the disposition
         of any significant portion of the business or assets of Hawkeye
         or the acquisition of any capital stock or other securities of
         Hawkeye or the business combination, merger or consolidation of
         Hawkeye with any person or any similar transaction (each such
         transaction, an "Acquisition Transaction"), or provide any such
         person with information or assistance or negotiate with any
         such person with respect to an Acquisition Transaction or agree
         to or otherwise assist in the effectuation of any Acquisition
         Transaction.  Each Support Agreement may be terminated at the
         option of any party thereto at any time after the earlier of
         (i) the termination of the Merger Agreement and (ii) the day
         following the Closing Date.  See "TERMS OF THE PROPOSED MERGER
         -- Support Agreements."  

         REASONS FOR THE MERGER; HAWKEYE BOARD RECOMMENDATION

                   The Board of Directors of Hawkeye has determined that
         the terms of the Merger Agreement and the transactions
         contemplated thereby are in the best interests of Hawkeye and
         its shareholders.  Accordingly, the Hawkeye Board of Directors
         recommends that Hawkeye shareholders vote FOR the approval and
         adoption of the Merger Agreement.

                   The recommendation of Hawkeye's Board of Directors is
         based upon a number of factors, including the Exchange Ratio
         and other financial terms of the Merger, information concerning
         the business, financial condition, results of operations and
         prospects of MBI and Hawkeye, the value anticipated to be
         received by Hawkeye shareholders in the Merger in relation to
         the historical trading prices of Hawkeye Common Stock,
         similarities between the community banking philosophies of
         Hawkeye and MBI, and the financial advice and opinion rendered
         by Hawkeye's financial advisor, Donaldson, Lufkin & Jenrette.  

                   See "TERMS OF THE PROPOSED MERGER -- Background and
         Reasons for the Merger; Hawkeye Board Recommendation."

         OPINION OF HAWKEYE'S FINANCIAL ADVISOR

                   Donaldson, Lufkin & Jenrette Securities Corporation
         ("DLJ"), Hawkeye's financial advisor, has delivered its written
         opinion, dated the date of this Proxy Statement/Prospectus, to
         the Board of Directors of Hawkeye stating that, as of the date
         of this Proxy Statement/Prospectus and based on the matters set 
         forth in such opinion, the Exchange Ratio is fair, from a
         financial point of view, to the holders of Hawkeye Common
         Stock.  The full text of the written opinion of DLJ, which sets
         forth 


                                       -6-<PAGE>







         the assumptions made, the procedures followed, the matters
         considered and the limits on the review undertaken by DLJ, is
         attached as Annex B to this Proxy Statement/Prospectus and
         holders of Hawkeye Common Stock are urged to read carefully the
         opinion in its entirety.  See "TERMS OF THE PROPOSED MERGER --
         Opinion of Hawkeye's Financial Advisor."

         INTERESTS OF CERTAIN PERSONS IN THE MERGER

                   In considering the recommendation of the Hawkeye
         Board with respect to the Merger Agreement, Hawkeye
         shareholders should be aware that certain executive officers
         and directors of Hawkeye (or their affiliates) have interests
         in the Merger that are different from and in addition to the
         interests of Hawkeye shareholders generally.  The Board of
         Directors of Hawkeye was aware of these interests and took
         these interests into account in adopting the Merger Agreement.

                   EMPLOYMENT AGREEMENT.  On August 4, 1995, Robert W.
         Murray, President and Chief Executive Officer of Hawkeye,
         entered into an employment agreement (the "Employment
         Agreement") with MBI.  The Employment Agreement is effective
         only upon the consummation of the Merger.  It provides for the
         employment of Mr. Murray as Chairman of Hawkeye Bank, Des
         Moines, and any successor thereto ("Hawkeye Bank"), for a term
         of four years from the Effective Time (the "Employment
         Period").  In addition, Mr. Murray will be proposed for
         election to the Board of Directors of MBI for a term expiring
         on the third anniversary of the MBI annual meeting date for the
         year in which the Merger is consummated.  Hawkeye Bank will pay
         Mr. Murray for each consecutive year of the Employment Period a
         base salary (inclusive in each case of all fees which would
         otherwise be payable to him as a director of Hawkeye Bank) of
         $250,000, $150,000, $100,000 and $100,000, respectively.  Mr.
         Murray will also be entitled during the Employment Period,
         unless terminated for "cause" (as defined in the Employment
         Agreement), to employee benefits and customary prerequisites
         equivalent to those provided by MBI to similarly situated
         officers, including, pension benefits, health and welfare
         benefits, disability insurance benefits, life insurance
         benefits, vacation benefits and other fringe benefits.

                   If Mr. Murray's employment is terminated by reason of
         death or "disability" (as defined in the Employment Agreement)
         or is involuntarily terminated other than for "cause," in each
         case prior to the expiration of the Employment Period, Mr.
         Murray, or his estate, will be entitled to continue to be paid 
         his salary under the Employment Agreement to the same extent as
         if Mr. Murray had completed his employment obligations
         thereunder.


                                       -7-<PAGE>







                   INDEMNIFICATION.  In the Merger Agreement, MBI agreed
         that the Merger will not affect or diminish any of Hawkeye's
         duties and obligations of indemnification existing as of the
         Effective Time in favor of employees, agents, directors or
         officers of Hawkeye or its subsidiaries arising by virtue of
         their respective articles of incorporation or bylaws in the
         form in effect on August 4, 1995, or arising by operation of
         law or by virtue of any contract, resolution or other agreement
         or document existing on August 4, 1995, and such duties and
         obligations will continue in full force and effect for so long
         as they would (but for the Merger) otherwise survive.

                   OTHER INTERESTS.  Certain executive officers,
         including certain directors, of Hawkeye currently hold Hawkeye
         employee stock options and/or Hawkeye stock appreciation rights
         which will be converted at the Effective Time into rights with
         respect to MBI Common Stock.  See "TERMS OF THE PROPOSED MERGER
         -- Employee Benefits."  In addition, Robert W. Murray and R.
         Douglas Fisher will be entitled to receive in connection with
         the Merger up to $900,000 and $525,000, respectively, pursuant to
         certain change of control agreements between each of them and
         Hawkeye.  In connection with the anticipated retirement of
         Donald R. Runger, Hawkeye and Mr. Runger entered into a
         deferred compensation agreement on July 25 1995, pursuant to
         which Mr. Runger will be paid in the aggregate $775,000.  The
         deferred compensation agreement superseded and replaced the
         change of control agreement between Hawkeye and Mr. Runger.

                   See "TERMS OF THE PROPOSED MERGER -- Interests of
         Certain Persons in the Merger" and "-- Employee Benefits."

         FRACTIONAL SHARES

                   No fractional shares of MBI Common Stock will be
         issued to Hawkeye shareholders in connection with the Merger.
         Upon consummation of the Merger, each former holder of Hawkeye
         Common Stock who otherwise would have been entitled to receive
         a fraction of a share of MBI Common Stock shall be entitled to
         receive in lieu thereof cash, without interest, in an amount
         equal to the holder's fractional share interest multiplied by
         the closing stock price of MBI Common Stock on the last
         business day preceding the Effective Time.  Cash received by
         Hawkeye shareholders in lieu of fractional shares may give rise
         to taxable income.  See "CERTAIN FEDERAL INCOME TAX
         CONSEQUENCES OF THE MERGER."

         REGULATORY APPROVAL

                   The Merger is subject to the prior approval of the
         Board of Governors of the Federal Reserve System (the "Federal 


                                       -8-<PAGE>







         Reserve Board") under the Bank Holding Company Act of 1956, as 
         amended (the "BHCA").  Application for such approval has been
         or will be filed.  There can be no assurance that any necessary
         regulatory approval or action will be received or taken or as
         to the timing of such approval or action.  See "TERMS OF THE
         PROPOSED MERGER -- Regulatory Approval."

         WAIVER AND AMENDMENT

                   Any term, condition or provision of the Merger
         Agreement may be waived in writing at any time by the party
         which is, or whose shareholders are, entitled to the benefits
         thereof.  The Merger Agreement and the schedules thereto may be
         amended by or on behalf of the Boards of Directors of MBI and
         Hawkeye at any time before or after approval of the Merger
         Agreement by the shareholders of Hawkeye, by an instrument in
         writing signed on behalf of each party; PROVIDED that after any
         such approval by the shareholders of Hawkeye no such
         modification may alter or change the amount or kind of
         consideration to be received by holders of Hawkeye Common Stock
         in the Merger.

         ACCOUNTING TREATMENT

                   It is intended that the Merger will be accounted for
         under the pooling-of-interests method of accounting.  See
         "TERMS OF THE PROPOSED MERGER -- Accounting Treatment."

         EMPLOYEE STOCK OPTIONS AND STOCK APPRECIATION RIGHTS

                   At the Effective Time, all rights with respect to
         Hawkeye Common Stock pursuant to Hawkeye employee stock options
         that are outstanding at the Effective Time, whether or not then
         exercisable, will be converted into and become rights with
         respect to MBI Common Stock, and MBI will assume each Hawkeye
         employee stock option in accordance with the terms of the stock
         option plan under which it was issued and the stock option
         agreement by which it is evidenced.  From and after the
         Effective Time, (i) each Hawkeye employee stock option assumed
         by MBI will be exercisable solely for shares of MBI Common
         Stock, (ii) the number of shares of MBI Common Stock subject to
         each Hawkeye employee stock option will be equal to the number
         of shares of Hawkeye Common Stock subject to such Hawkeye
         employee stock option immediately prior to the Effective Time
         multiplied by the Exchange Ratio and (iii) the per share
         exercise price under each Hawkeye employee stock option will be
         adjusted by dividing the per share exercise price under such
         Hawkeye employee stock option by the Exchange Ratio and
         rounding down to the nearest cent; provided, however, that the
         terms of each Hawkeye employee stock option will, in accordance
         with its 


                                       -9-<PAGE>







         terms, be subject to further adjustment as appropriate to
         reflect any stock split, stock dividend, recapitalization or 
         other similar transaction subsequent to the Effective Time.  It
         is intended that the foregoing assumption will be undertaken in
         a manner that will not constitute a "modification" as defined
         in the Internal Revenue Code of 1986, as amended (the "Internal
         Revenue Code"), as to any Hawkeye employee stock option that is
         an "incentive stock option."  

                   At the Effective Time, all stock appreciation rights
         with respect to Hawkeye Common Stock that are outstanding at
         the Effective Time, whether or not then exercisable, will be
         converted into and become stock appreciation rights with
         respect to MBI Common Stock with the same terms
         and conditions as were applicable to such Hawkeye stock
         appreciation rights immediately prior to the Effective Time.

                   Certain executive officers, including certain executive
         officers who are directors, of Hawkeye currently hold Hawkeye 
         employee stock options and/or Hawkeye stock appreciation rights 
         which will be converted into rights with respect to MBI Common Stock as
         described above.

         FEDERAL INCOME TAX CONSEQUENCES IN GENERAL

                   Wachtell, Lipton, Rosen & Katz, special counsel to
         MBI, and Baird, Holm, McEachen, Pedersen, Hamann & Strasheim,
         counsel to Hawkeye, have delivered their opinions to the effect
         that, assuming the Merger occurs in accordance with the Merger
         Agreement, and conditioned on the accuracy of certain
         representations made by MBI and Hawkeye, no gain or loss will
         be recognized by Hawkeye or MBI as a result of the Merger and
         Hawkeye shareholders will recognize no gain or loss as a result
         of the exchange of their Hawkeye Common Stock solely for shares
         of MBI Common Stock pursuant to the Merger, except with respect
         to cash received in lieu of fractional shares, if any.  EACH
         HAWKEYE SHAREHOLDER IS URGED TO CONSULT HIS OR HER OWN TAX
         ADVISOR TO DETERMINE THE SPECIFIC TAX CONSEQUENCES OF THE
         MERGER TO SUCH SHAREHOLDER.  See "CERTAIN FEDERAL INCOME TAX
         CONSEQUENCES OF THE MERGER."

         DISSENTERS' RIGHTS

                   Under the Iowa Act, a holder of shares of Hawkeye
         Common Stock may, in lieu of the consideration such shareholder
         would otherwise receive in the Merger, seek payment of the
         "fair value" of such shares and receive payment of such fair
         value in cash if the Merger is consummated by following certain
         procedures set forth in Division XIII of the Iowa Act, the text 



                                       -10-<PAGE>







         of which is attached hereto as Annex A to this Proxy Statement/
         Prospectus.  

                   Failure to follow such procedures may result in a
         loss of such shareholder's dissenters' rights.  Any Hawkeye
         shareholder returning a blank executed proxy card will be
         deemed to have approved the Merger Agreement, thereby waiving
         any such dissenters' rights.  See "DISSENTERS' RIGHTS OF
         SHAREHOLDERS OF HAWKEYE."

         MARKET AND MARKET PRICES

                   MBI Common Stock is currently quoted on the NYSE
         under the symbol "MTL."  Prior to March 25, 1993, MBI's Common
         Stock was quoted on the NASDAQ/NM, under the symbol "MTRC."  On
         August 3, 1995, the last full trading day preceding public
         announcement of the Merger, the last sale price of MBI Common
         Stock was $43.88 per share as reported on the NYSE Composite
         Tape.  The last sale price of MBI Common Stock on _______,
         1995, the most recent practicable date prior to the mailing of
         this Proxy Statement/Prospectus, was $_____ per share as
         reported on the NYSE Composite Tape.  

                   Hawkeye Common Stock is currently quoted on the
         NASDAQ/NM, under the symbol "HWKB."  On August 3, 1995, the
         last sale price of Hawkeye Common Stock was $22.75 per share as
         reported on the NASDAQ/NM.  The value of Hawkeye Common Stock
         at August 3, 1995, on an equivalent per share basis, was $25.67
         (based upon the Exchange Ratio of .585).  The last sale price
         of Hawkeye Common Stock on ______, 1995, was $_____ per share
         as reported on the NASDAQ/NM.

                   Shareholders are advised to obtain current market
         quotations for MBI Common Stock and Hawkeye Common Stock.
         There can be no assurance as to the market price of MBI Common
         Stock or Hawkeye Common Stock before, at, or, in the case of
         MBI Common Stock, after, the Effective Time.  The following
         table sets forth for the periods indicated the high and low
         last sale prices (as reported on the NYSE Composite Tape and on
         the NASDAQ/NM, respectively) and per share cash dividend
         declared with respect to MBI Common Stock and Hawkeye Common
         Stock.













                                       -11-<PAGE>







      <TABLE>
      <CAPTION>
                            MBI         Cash      Hawkeye        Cash
                       Common Stock   Dividend  Common Stock   Dividend
                       ------------             ------------
                       High      Low  Declared  High      Low  Declared
                       ----      ---            ----      ---  --------

      <S>            <C>     <C>       <C>    <C>     <C>       <C>         
      1993
      ----
      First Quarter  $35.625 $30.625   $.2475 $19.375 $15.625   $.10
      Second Quarter  37.625  29.375    .2475  18.750  16.125    .10
      Third Quarter   34.375  31.625    .2475  20.500  16.250    .11
      Fourth Quarter  34.625  29.125    .2475  20.375  18.625    .11

      1994
      ----
      First Quarter  $34.125 $29.875   $.28   $20.250 $17.875   $.12
      Second Quarter  38.125  31.125    .28    21.375  17.500    .12
      Third Quarter   39.250  34.875    .28    21.250  19.375    .13
      Fourth Quarter  36.875  29.500    .28    21.125  15.500    .13

      1995
      ----
      First Quarter  $37.250 $31.250   $.33   $21.875 $18.625   $.15
      Second Quarter  44.875  36.000    .33    23.750  20.250    .15
      Third Quarter   47.000  41.625    .33    26.000  20.500    .17
      Fourth Quarter
        (through ____, 
         1995)        [     ] [     ]          [     ] [     ]
      </TABLE>

                   MBI has applied for the listing on the NYSE of the
         shares of MBI Common Stock to be issued in the Merger.  

                   MBI's Board of Directors has heretofore declared a
         dividend on shares of MBI Common Stock of $.33 per share,
         payable on January 2, 1996 to holders of record on December 11,
         1995.  The Board of Directors of MBI intends to maintain its
         present policy of paying quarterly cash dividends on the MBI
         Common Stock, when justified by the financial condition of MBI
         and its subsidiaries.  The declaration and amount of future
         dividends will depend on circumstances existing at the time,
         including MBI's earnings, financial condition and capital
         requirements as well as regulatory limitations, note and
         indenture provisions and such other factors as the Board of
         Directors may deem relevant.  See "INFORMATION REGARDING MBI
         STOCK -- Dividends."

                   Pursuant to the Merger Agreement, Hawkeye has agreed
         that, during the period from the date of the Merger Agreement 
         to the Effective Time, Hawkeye will not declare, set aside or
         pay any dividends or other distributions on the Hawkeye Common
         Stock, except that Hawkeye may declare and pay (x) for
         dividends payable in 1995, regular quarterly cash dividends of
         not more than $.17 per share on the Hawkeye Common Stock, and
         (y) for dividends payable in 1996, quarterly cash dividends of
         not 



                                       -12-<PAGE>







         more than $.19 per share; PROVIDED, that Hawkeye may not
         declare or pay any dividends on Hawkeye Common Stock for any
         period in which its shareholders will be entitled to receive
         any regular quarterly dividend on the shares of MBI Common
         Stock to be issued in the Merger.

                   The Board of Directors of Hawkeye has heretofore
         declared (i) a regular quarterly cash dividend of $.17 per
         share on the Hawkeye Common Stock, payable on November 15, 1995
         to holders of record on November 1, 1995 and (ii) with the
         consent of MBI, a quarterly cash dividend of $.19 per share on
         the Hawkeye Common Stock, payable on January 2, 1996 to holders
         of record on December 12, 1995.

         COMPARATIVE UNAUDITED PER SHARE DATA

              The following table sets forth for the periods indicated
         selected historical per share data of MBI and Hawkeye and the
         corresponding pro forma and pro forma equivalent per share
         amounts giving effect to the proposed Merger, and the proposed
         acquisitions of First Sterling Bancorp, Inc. ("Sterling"),
         Security Bank of Conway, FSB ("Security Bank") and Metro
         Savings Banks, FSB ("Metro") and the acquisition of Ameribanc,
         Inc. ("ABNK"), which was completed on April 30, 1992.  The data
         presented is based upon the supplemental consolidated financial
         statements and related notes of MBI and the consolidated
         financial statements and related notes of Hawkeye, Sterling,
         Security Bank and Metro included in this Proxy Statement/
         Prospectus or in documents incorporated herein by reference,
         and the pro forma combined consolidated balance sheet and
         income statements, including the notes thereto, appearing
         elsewhere herein.  This information should be read in
         conjunction with such historical and pro forma financial
         statements and related notes thereto.  The assumptions used in
         the preparation of this table appear in the notes to the pro
         forma financial information appearing elsewhere in this Proxy
         Statement/Prospectus.  See "PRO FORMA FINANCIAL INFORMATION."
         These data are not necessarily indicative of the results of the
         future operations of the combined organization or the actual
         results that would have occurred if the Merger, the completed
         merger of ABNK, or the proposed mergers of Sterling, Security
         Bank and Metro had been consummated prior to the periods
         indicated.




                                       -13-<PAGE>







     <TABLE>
     <CAPTION>
                                                                    MBI/HAWKEYE
                                                  MBI     HAWKEYE    Pro Forma
                                               Reported  Reported   Combined(1)
                                               --------  --------   -----------
     <S>                                       <C>        <C>        <C>          
     Book Value per Common Share:
       September 30, 1995..................... $ 25.43    $14.32     $25.09     
       December 31, 1994......................   23.47     13.06      23.03     
     Cash Dividends Declared Per Common Share:
       Nine months ended September 30, 1995... $   .99    $  .47     $  .99     
       Year ended December 31, 1994 ..........    1.12       .50       1.12     
       Year ended December 31, 1993 ..........     .99       .42        .99     
       Year ended December 31, 1992 ..........     .93       .33        .93     
     Earnings per Common Share Before Change
       in Accounting Principle:
       Nine months ended September 30, 1995...  $ 2.95    $ 1.28     $ 2.89     
       Year ended December 31, 1994 ..........    3.22      1.78       3.21     
       Year ended December 31, 1993 ..........    2.79      1.64       2.80     
       Year ended December 31, 1992 ..........    2.42      1.38       2.42     
     Market Price per Common Share:
       August 3, 1995(4)......................  $43.88    $22.75         --     
       ________, 1995(4)......................      --        --         --     
































                                         -14-<PAGE>







       MBI/HAWKEYE   MBI/All Entities  MBI/All Entities
        Pro Forma        Pro Forma         Pro Forma
      Equivalent(2)     Combined(3)      Equivalent(2)
      -------------     -----------      -------------
         <C>              <C>               <C>
         $14.68           $25.16            $14.72
          13.47            23.09             13.51

         $  .58           $  .99            $  .58
            .66             1.12               .66
            .58              .99               .58
            .54              .93               .54


         $ 1.69           $ 2.88            $ 1.68
           1.88             3.22              1.88
           1.64             2.80              1.64
           1.42             2.44              1.43

             --               --                --
             --               --                --
     ------------------
     <FN>
     (1)  Includes the effect of pro forma adjustments for ABNK and
          Hawkeye as appropriate.  See "PRO FORMA FINANCIAL
          INFORMATION."
     (2)  Based upon the pro forma combined per share amounts multiplied
          by .585, the Exchange Ratio applicable to one share of Hawkeye
          Common Stock.  See "PRO FORMA FINANCIAL INFORMATION."
     (3)  Includes the effect of pro forma adjustments for ABNK,
          Hawkeye, Security Bank, Sterling and Metro as appropriate.
          See "PRO FORMA FINANCIAL INFORMATION."
     (4)  The market values of MBI Common Stock and Hawkeye Common Stock
          were determined as of the last trading day preceding the
          public announcement of the Merger and as of the most recent
          practicable date prior to the mailing of this Proxy Statement/
          Prospectus based on the last sales price as reported on the
          NYSE and NASDAQ/NM, respectively.
     </FN>
     /TABLE
<PAGE>







         SUMMARY FINANCIAL DATA

                   The following tables set forth for the periods
         indicated certain summary historical consolidated financial
         information for MBI and Hawkeye.

                   The historical balance sheet data and income
         statement data included in the summary financial data for the
         periods indicated are derived from financial statements of MBI
         and Hawkeye as of and for such periods.  These data include all
         adjustments which are, in the opinion of the respective
         managements of MBI and Hawkeye, necessary to present a fair
         statement of the results of these periods and all such
         adjustments are of a normal recurring nature.  Results for
         interim periods are not necessarily indicative of results for
         the entire year.

                   The following information should be read in
         conjunction with the consolidated financial statements of MBI
         and Hawkeye, and the related notes thereto, included in
         documents incorporated herein by reference and in conjunction
         with the unaudited pro forma combined consolidated financial
         information, including notes thereto, appearing elsewhere in
         this Proxy Statement/Prospectus.  See "INCORPORATION OF CERTAIN
         INFORMATION BY REFERENCE" and "PRO FORMA FINANCIAL
         INFORMATION." 



























                                       -15-<PAGE>







         <TABLE>
         <CAPTION>
                          MERCANTILE BANCORPORATION INC.

                              SUMMARY FINANCIAL DATA

                                    NINE MONTHS ENDED
                                      SEPTEMBER 30                           YEAR ENDED DECEMBER 31
                                  ---------------------   ---------------------------------------------------------
                                     1995       1994        1994        1993        1992        1991        1990
                                  ---------   ---------   ---------   ---------   ---------   ---------   ---------
                                        (Unaudited)                         (Audited)
  <S>                                 <C>         <C>         <C>         <C>         <C>         <C>         <C>
  PER SHARE DATA
    Net income(1)..................   $  2.95     $  2.68     $  3.22     $  2.79     $  2.42     $  2.25     $  1.99
    Dividends declared.............       .99         .84        1.12         .99         .93         .93         .93
    Book value at period end.......     25.43       23.26       23.47       21.92       19.76       19.48       18.04
    Average common shares out-
      standing (thousands).........    53,630      51,900      51,957      50,965      47,276      39,391      37,847

  EARNINGS (THOUSANDS)
    Interest income................  $854,404    $730,270    $994,896    $971,482  $1,011,544  $1,018,688  $1,022,441
    Interest expense...............   410,097     284,939     399,349     390,911     485,253     588,993     642,365
                                     --------    --------    --------    --------  ----------  ----------  ----------
    Net interest income............   444,307     445,331     595,547     580,571     526,291     429,695     380,076
    Provision for possible
      loan losses..................    28,928      26,374      43,201      63,513      77,874      62,360      56,196
    Other income...................   181,480     159,425     209,758     219,703     201,965     170,770     150,508
    Other expense..................   356,944     360,140     492,070     508,043     471,903     431,155     361,992
    Income taxes...................    81,156      78,033     101,705      85,467      61,072      24,029      31,759
                                     --------    --------    --------    --------  ----------  ----------  ----------
    Net income.....................  $158,759    $140,209    $168,329    $143,251  $  117,407  $   82,921  $   80,637
                                     ========    ========    ========    ========  ==========  ==========  ==========
  ENDING BALANCE SHEET (MILLIONS)
    Total assets...................   $16,019     $14,723     $14,806     $14,423  $   14,190  $   12,377  $   11,674
    Earning assets.................    14,773      13,571      13,671      13,259      12,989      11,331      10,447
    Investment securities..........     3,847       3,956       3,844       4,180       4,106       2,949       2,286
    Loans and leases,
      net of unearned income.......    10,648       9,360       9,670       8,702       8,525       7,881       7,827
    Deposits.......................    11,835      11,025      11,189      11,599      11,629      10,211       9,660
    Long-term debt.................       304         300         299         288         310         216         247
    Shareholders' equity...........     1,419       1,224       1,234       1,133         996         805         683
    Reserve for possible
      loan losses..................       188         190         195         185         179         158         159

  SELECTED RATIOS
    Return on average assets.......      1.37%       1.29%       1.16%       1.00%        .86%        .70%        .73%
    Return on average equity.......     16.01       15.80       14.07       13.37       12.71       10.96       12.30
    Net interest rate margin.......      4.26        4.57        4.55        4.55        4.34        4.12        3.95
    Equity to assets (average).....      8.86        8.31        8.34        7.85        7.02        6.50        5.85
    Reserve for possible loan 
      losses to:
        Outstanding loans..........      1.76        2.03        2.01        2.12        2.10        2.00        2.04
        Non-performing loans.......    352.34      469.36      579.62      278.62      147.60      105.33      108.49
  <FN>
  (1)  Based on weighted average common shares outstanding.
  </FN>
  </TABLE>
                                       -16-<PAGE>







         <TABLE>
         <CAPTION>
                              HAWKEYE BANCORPORATION

                              SUMMARY FINANCIAL DATA

                                    NINE MONTHS ENDED
                                      SEPTEMBER 30                           YEAR ENDED DECEMBER 31
                                  ---------------------   ---------------------------------------------------------
                                     1995       1994        1994        1993        1992        1991        1990
                                  ---------------------------------------------------------------------------------
                                        (Unaudited)                                 (Audited)
  <S>                                 <C>         <C>         <C>         <C>         <C>         <C>         <C>
  PER COMMON SHARE DATA
    Net income(1)..................   $  1.28     $  1.31    $   1.78    $   1.64    $   1.73    $   1.63      $ 1.64
    Dividends declared.............       .47         .37         .50         .42         .33         .15          0 
    Book value at period end.......     14.32       12.88       13.06       12.15       10.84        9.38        7.87
    Average common shares out-
      standing (thousands).........    13,512      13,327      13,334      13,309      13,289      13,279      13,272

  EARNINGS (THOUSANDS)
    Interest income................  $105,900     $90,495    $123,173    $123,129    $128,261    $138,133    $138,114
    Interest expense...............    49,337      37,414      51,601      53,662      64,389      79,585      81,314
                                     --------    --------     -------    --------    --------    --------    --------
    Net interest income............    56,563      53,081      71,572      69,467      63,872      58,548      56,800
    Provision for possible loan
      losses.......................       249          48          64         789       1,677       1,668         281
    Other income...................    20,195      20,092      26,803      25,886      22,491      18,360      16,994
    Other expenses.................    50,178      47,259      63,106      62,139      57,740      53,836      49,308
    Income taxes...................     9,004       8,420      11,460      10,607       8,609       4,866       2,472
                                     --------    --------     -------    --------    --------    --------    --------
        Net income before change
         in accounting principle...   $17,327     $17,446     $23,745     $21,818     $18,337     $16,538     $21,733
                                      =======     =======     =======     =======     =======     =======     =======
  ENDING BALANCE SHEET (MILLIONS)
    Total assets...................   $ 1,993     $ 1,891     $ 1,927     $ 1,827     $ 1,849     $ 1,674     $ 1,614
    Earning assets.................     1,816       1,729       1,756       1,721       1,689       1,522       1,453
    Investment securities..........       415         426         437         490         526         463         435
    Loan and leases, net of
      unearned income..............     1,299       1,223       1,234       1,106       1,045         928         900
    Deposits.......................     1,717       1,651       1,676       1,645       1,631       1,473       1,398
    Shareholders' equity...........       193         172         174         163         147         129         119
    Reserve for possible 
      loan losses..................        22          22          21          21          20          18          19

  SELECTED RATIOS
    Return on average assets.......      1.18%       1.26%       1.27%       1.19%       1.07%       1.03%       1.40%
    Return on average equity.......     12.52       13.90       14.04       14.14       13.10       13.30       20.13
    Net interest rate margin.......      4.39        4.34        4.35        4.34        4.27        4.11        4.00
    Equity to assets (average).....      9.46        9.04        9.05        8.45        8.18        7.72        6.97
    Reserve for possible loan 
      losses to:
        Outstanding loans..........      1.66        1.77        1.73        1.91        1.91        1.98        2.07
        Non-performing loans.......    457.70      334.37      485.64      418.60      239.83      161.74      151.63

  <FN>
  (1)  Based on weighted average common shares outstanding.
  </FN>
  </TABLE>


                                       -17-<PAGE>







                      INFORMATION REGARDING SPECIAL MEETING

         GENERAL

                   This Proxy Statement/Prospectus is being furnished to
         holders of Hawkeye Common Stock in connection with the
         solicitation of proxies by the Board of Directors of Hawkeye
         for use at the Special Meeting and any adjournment or
         postponement thereof at which the shareholders of Hawkeye will
         consider and vote on a proposal to approve and adopt the Merger
         Agreement and will transact such other business as may properly
         come before the Special Meeting or any adjournment or
         postponement thereof.  Each copy of this Proxy Statement/
         Prospectus is accompanied by a Letter to Hawkeye shareholders,
         the Notice of Special Meeting of Shareholders of Hawkeye, a
         proxy card and a self-addressed return envelope to Hawkeye for
         the proxy card.

                   This Proxy Statement/Prospectus is also furnished by
         MBI to each holder of Hawkeye Common Stock as a prospectus in
         connection with the issuance by MBI of shares of MBI Common
         Stock to Hawkeye shareholders upon the consummation of the
         Merger.  This Proxy Statement/Prospectus, the Letter to Hawkeye
         shareholders, the Notice of Special Meeting and the form of
         proxy are first being mailed to shareholders of Hawkeye on or
         about _______________, 1995.

         DATE, TIME AND PLACE

                   The Special Meeting will be held at ________________,
         Des Moines, Iowa, on __________________, 1995, at _____ A.M.,
         Central Time.

         RECORD DATE; VOTE REQUIRED

                   The Board of Directors of Hawkeye has fixed _______,
         1995, as the Record Date for determination of shareholders of
         Hawkeye entitled to notice of and to vote at the Special
         Meeting.  Accordingly, only holders of record of Hawkeye Common
         Stock at the close of business on ______, 1995 will be entitled
         to notice of, and to vote at, the Special Meeting.  At the
         Record Date, there were ________ shares of Hawkeye Common Stock
         outstanding and entitled to vote which were held by
         approximately _____ holders of record.  Each such share is
         entitled to one vote on each matter properly brought before the
         Special Meeting.  The affirmative vote of the holders of a
         majority of the outstanding shares of Hawkeye Common Stock
         entitled to vote at the meeting is required to approve the
         Merger Agreement.  




                                       -18-<PAGE>







                   As of the Record Date, directors and executive
         officers of Hawkeye and certain of their affiliates owned
         beneficially an aggregate of _________ shares of Hawkeye Common
         Stock, or approximately ____% of the shares entitled to vote at
         the Special Meeting.  All of Hawkeye's directors and executive
         officers and certain of their affiliates have indicated their
         intention to vote their shares of Hawkeye Common Stock for the
         approval of the Merger Agreement.  In addition, the Supporting
         Stockholders, who as of the Record Date beneficially owned in
         the aggregate approximately __% of the outstanding shares of
         Hawkeye Common Stock, have each agreed pursuant to a Support
         Agreement to vote all shares of Hawkeye Common Stock
         beneficially owned by such person, or over which such person
         has voting power or control, to approve the Merger Agreement.

         VOTING AND REVOCATION OF PROXIES

                   Shares of Hawkeye Common Stock entitled to vote and
         which are represented at the Special Meeting by a properly
         executed proxy received prior to the vote at the Special
         Meeting will be voted at such Special Meeting in the manner
         directed on the proxy card, unless such proxy is revoked in the
         manner set forth herein in advance of such vote.  ANY HAWKEYE
         SHAREHOLDER RETURNING A BLANK EXECUTED PROXY CARD WILL BE
         DEEMED TO HAVE VOTED FOR APPROVAL AND ADOPTION OF THE MERGER
         AGREEMENT.  Failure to return a properly executed proxy card or
         to vote in person at the Special Meeting will have the
         practical effect of a vote against the Merger Agreement.

                   Shares subject to abstentions will be treated as
         shares that are present at the Special Meeting for purposes of
         determining the presence of a quorum and as voted for the
         purposes of determining the base number of shares voting on the
         proposal.  If a broker or other nominee holder indicates on the
         proxy card that it does not have discretionary authority to
         vote the shares it holds of record on the proposal, those
         shares will not be treated as shares that are present at the
         Special Meeting for purposes of determining the presence of a
         quorum and will not be considered as voted for purposes of
         determining the approval of shareholders on the proposal.
         Since the approval of the Merger Agreement requires the
         affirmative vote of the holders of a majority of the
         outstanding shares of Hawkeye Common Stock, abstentions and
         broker non-votes will have the same effect as a vote against
         the approval of the Merger Agreement.  

                   Any shareholder of Hawkeye giving a proxy may revoke
         it at any time prior to the vote at the Special Meeting.
         Shareholders of Hawkeye wishing to revoke a proxy prior to the
         vote may do so by delivering to the Secretary of Hawkeye at 222 



                                       -19-<PAGE>







         Equitable Building, 604 Locust Street, Des Moines, Iowa 50309-
         3723 a written notice of revocation bearing a later date than
         the proxy or any later dated proxy relating to the same shares,
         or by attending the Special Meeting and voting in person.
         Attendance at the Special Meeting will not in itself constitute
         the revocation of a proxy.

                   The Board of Directors of Hawkeye is not currently
         aware of any business to be brought before the Special Meeting
         other than that described herein.  If, however, other matters
         are properly brought before such Special Meeting, or any
         adjournment or postponement thereof, the persons appointed as
         proxies will have discretionary authority to vote the shares
         represented by duly executed proxies in accordance with their
         discretion and judgment as to the best interest of Hawkeye.

         SOLICITATION OF PROXIES

                   Hawkeye will bear its own costs of soliciting
         proxies, except that MBI will pay printing and mailing expenses
         and registration fees incurred in connection with preparing
         this Proxy Statement/Prospectus.  Proxies will initially be
         solicited by mail, but directors, officers and selected other
         employees of Hawkeye may also solicit proxies in person or by
         telephone, telegram or other means of communication.
         Directors, officers and any other employees of Hawkeye who
         solicit proxies will not be specially compensated for such
         services, but may be reimbursed for reasonable out-of-pocket
         expenses in connection with such solicitation.  Brokerage
         houses, nominees, fiduciaries, and other custodians will be
         requested to forward proxy materials to beneficial owners and
         will be reimbursed for their reasonable expenses incurred in
         connection therewith. 

                   HOLDERS OF HAWKEYE COMMON STOCK ARE REQUESTED TO
         COMPLETE, DATE AND SIGN THE ENCLOSED PROXY CARD AND RETURN IT
         PROMPTLY IN THE ENCLOSED ENVELOPE.
















                                       -20-<PAGE>







                           TERMS OF THE PROPOSED MERGER

                   THE FOLLOWING IS A SUMMARY OF THE MATERIAL PROVISIONS
         OF THE MERGER AGREEMENT, A COPY OF WHICH IS FILED AS AN EXHIBIT
         TO THIS REGISTRATION STATEMENT.  SEE "AVAILABLE INFORMATION."
         THIS SUMMARY IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO THE
         MERGER AGREEMENT WHICH IS HEREBY INCORPORATED BY REFERENCE
         HEREIN.

         GENERAL DESCRIPTION OF THE MERGER

                   The Merger Agreement provides that Hawkeye will merge
         at the Effective Time with and into Merger Sub, subject to the
         Shareholder Approval and the satisfaction or waiver of the
         other conditions to the Merger.  Upon consummation of the
         Merger, Hawkeye's corporate existence will terminate, with
         Merger Sub continuing as the surviving corporation, and each
         share of Hawkeye Common Stock will be converted into the right
         to receive .585 of a share of MBI Common Stock, with cash in lieu
         of fractional shares.  The value of MBI Common Stock to be
         issued pursuant to the Merger may fluctuate prior to and
         following the Effective Time.  It is currently anticipated that
         the Effective Time will occur shortly after the date of the
         Special Meeting assuming the Merger Agreement is approved at
         such meeting.

                   The amount and nature of the Merger Consideration was
         established through arm's-length negotiations between MBI and
         Hawkeye, and reflects the balancing of a number of
         countervailing factors.  The total amount of the Merger
         Consideration reflects a price both parties concluded was
         appropriate.  See "-- Background and Reasons for the Merger;
         Hawkeye Board Recommendation."  The fact that the consideration
         is payable in shares of MBI Common Stock reflects the potential
         for change in the value of the MBI Common Stock and the desire
         to have the favorable tax attributes of a "reorganization" for
         federal income tax purposes.  See "CERTAIN FEDERAL INCOME TAX
         CONSEQUENCES OF THE MERGER."

                   NO ASSURANCE CAN BE GIVEN THAT THE CURRENT FAIR
         MARKET VALUE OF MBI COMMON STOCK WILL BE EQUIVALENT TO THE FAIR
         MARKET VALUE OF MBI COMMON STOCK ON THE DATE SUCH STOCK IS
         RECEIVED BY A HAWKEYE SHAREHOLDER OR AT ANY OTHER TIME.  THE
         FAIR MARKET VALUE OF MBI COMMON STOCK RECEIVED BY A HAWKEYE
         SHAREHOLDER MAY BE GREATER OR LESS THAN THE CURRENT FAIR MARKET
         VALUE OF MBI COMMON STOCK DUE TO NUMEROUS MARKET FACTORS.

                   Following the Effective Time, each shareholder of
         Hawkeye will be required to submit to KeyCorp Shareholder
         Services Inc., which has been appointed as exchange agent in 




                                       -21-<PAGE>







         the Merger (the "Exchange Agent"), a properly executed letter
         of transmittal and surrender to the Exchange Agent the stock
         certificate(s) formerly representing the shares of Hawkeye
         Common Stock in order to obtain issuance of a new stock
         certificate evidencing the shares of MBI Common Stock to which
         such shareholder is entitled.  No dividends or other
         distributions will be paid to a former Hawkeye shareholder with
         respect to shares of MBI Common Stock until such person
         surrenders the certificates formerly representing shares of
         Hawkeye Common Stock, or documentation acceptable to the
         Exchange Agent in lieu of lost or destroyed certificates, at
         which time such dividends will be remitted to such person,
         without interest and less any taxes that may have been imposed
         thereon.  See "-- Surrender of Hawkeye Stock Certificates and
         Receipt of MBI Common Stock."  No fractional shares of MBI
         Common Stock will be issued in the Merger, but cash will be
         paid in lieu of such fractional shares, such cash amount being
         determined by multiplying the holder's fractional share
         interest by the closing stock price of MBI Common Stock on the
         NYSE Composite Tape as reported in THE WALL STREET JOURNAL (or
         in the absence thereof, by any other authoritative source) on
         the last business day preceding the Effective Time.  See "--
         Fractional Shares."  The shares of MBI Common Stock to be
         issued pursuant to the Merger will be freely transferable
         except by certain shareholders of Hawkeye who are deemed to be
         "affiliates" (as such term is defined under the Securities Act)
         of Hawkeye.  The shares of MBI Common Stock issued to such
         affiliates will be restricted in their transferability in
         accordance with the rules and regulations promulgated by the
         Commission and pursuant to agreements entered into thereby and
         delivered to MBI.  See "INFORMATION REGARDING MBI STOCK --
         Restrictions on Resale of MBI Stock by Affiliates."

         STOCK OPTION AGREEMENT  

                   In connection with the execution of the Merger
         Agreement, MBI and Hawkeye entered into the Stock Option
         Agreement pursuant to which Hawkeye has issued MBI an Option to
         purchase up to 2,678,000 shares of Hawkeye Common Stock (or
         ____% of the outstanding shares of Hawkeye Common Stock as of
         the Record Date, without including any shares subject to or
         issued pursuant to the Option) at an exercise price of $22 per
         share.  The Option is exercisable (after receipt of the
         required regulatory approvals) upon the occurrence of one of
         the following events:  (i)  Hawkeye or any of its subsidiaries,
         without having received prior written consent from MBI, shall
         have entered into, authorized, recommended, proposed or
         publicly announced its intention to enter into, authorize,
         recommend, or propose, an agreement, arrangement or
         understanding with any person (other than MBI or any of its
         subsidiaries) to (1) effect a merger or


                                       -22-<PAGE>







         consolidation or similar transaction involving Hawkeye or any
         of its subsidiaries, (2) purchase, lease or otherwise acquire
         15% or more of the assets of Hawkeye or any of its subsidiaries
         or (3) purchase or otherwise acquire (including by way of
         merger, consolidation, share exchange or similar transaction)
         Beneficial Ownership (as defined in Rule 13d-3 under the
         Exchange Act) of securities representing 10% or more of the
         voting power of Hawkeye or any of its subsidiaries; (ii) any
         person (other than MBI or any subsidiary of MBI, or Hawkeye or
         any subsidiary of Hawkeye in a fiduciary capacity) shall have
         acquired Beneficial Ownership or the right to acquire
         Beneficial Ownership of 10% or more of the voting power of
         Hawkeye; (iii) Hawkeye's Board of Directors shall have
         withdrawn or modified in a manner adverse to MBI the
         recommendation of Hawkeye's Board of Directors with respect to
         the Merger Agreement, in each case after an Extension Event (as
         defined below); or (iv) the holders of Hawkeye Common Stock
         shall not have approved the Merger Agreement at the Special
         Meeting, or such Special Meeting shall not have been held or
         shall have been cancelled prior to termination of the Merger
         Agreement in accordance with its terms, in each case after an
         Extension Event (each of the above-described events is referred
         to herein as a "Triggering Event").  No Triggering Event has
         occurred as of the date of this Proxy Statement/Prospectus.

                   The Option terminates (i) on the earlier of (x) the
         Effective Time of the Merger and (y) the termination of the
         Merger Agreement (1) by mutual consent of MBI and Hawkeye, (2)
         after August 4, 1996 by a party not then in material breach of
         the Merger Agreement or (3) by either party if (A) the Federal
         Reserve Board has denied approval of the Merger and such denial
         has become final and nonappealable or (B) shareholders of
         Hawkeye shall not have approved the Merger Agreement at the
         Special Meeting following a favorable recommendation of
         Hawkeye's Board of Directors, provided that if such termination
         follows an Extension Event (as defined below), the Option will
         not terminate until 12 months following such termination or
         (ii) if the Option cannot be exercised on such day because of
         any injunction, order or similar restraint issued by a court of
         competent jurisdiction, on the 30th business day after such
         injunction, order or restraint shall have been dissolved or
         when such injunction, order or restraint shall have become
         permanent and no longer subject to appeal, as the case may be.
         An "Extension Event" is defined in the Stock Option Agreement
         as any of:  (i) a Triggering Event of the type specified in
         clauses (i) and (ii) in the preceding paragraph; (ii) any
         person (other than MBI or any of its subsidiaries) shall have
         "commenced" (as such term is defined in Rule 14d-2 under the 
         Exchange Act), or shall have filed a registration statement 
         under the Securities Act with respect to, a tender offer or
         exchange offer to purchase 


                                       -23-<PAGE>







         shares of Hawkeye Common Stock such that, upon consummation of
         such offer, such person would have Beneficial Ownership or the
         right to acquire Beneficial Ownership of 10% or more of the
         voting power of Hawkeye; or (iii) any person (other than MBI or
         any subsidiary of MBI, or Hawkeye or any subsidiary of Hawkeye
         in a fiduciary capacity) shall have publicly announced its
         willingness, or shall have publicly announced a proposal, or
         publicly disclosed an intention to make a proposal, (x) to make
         an offer described in clause (ii) of this sentence or (y) to
         engage in a transaction described in clause (i) of this
         sentence. 

                   The Stock Option Agreement further provides that, to
         the extent not terminated pursuant to its terms, from and after
         the date of a Triggering Event until 13 months immediately
         thereafter (the "Repurchase Period"), MBI will be entitled to
         require Hawkeye to repurchase for cash the Option from MBI
         together with all (but not less than all) shares of Hawkeye
         Common Stock purchased by MBI pursuant thereto, at a price
         equal to the sum of:  (i) the exercise price paid by MBI for
         any shares of Hawkeye Common Stock acquired pursuant to the
         Option; (ii) the difference between (1)  the "Market/Tender
         Offer Price" for shares of Hawkeye Common Stock (defined as the
         higher of (x) the highest price per share at which a tender or
         exchange offer has been made for shares of Hawkeye Common Stock
         or (y) the highest closing mean of the "bid" and the "ask"
         price per share of Hawkeye Common Stock reported by the NASDAQ/
         NM for any day within that portion of the Repurchase Period
         which precedes the date MBI gives notice of the required
         repurchase) and (2) the exercise price, multiplied by the
         number of shares of Hawkeye Common Stock with respect to which
         the Option has not been exercised, but only if the Market/
         Tender Offer Price is greater than such exercise price; (iii)
         the difference between the Market/Tender Offer Price and the
         exercise price paid by MBI for any shares of Hawkeye Common
         Stock purchased pursuant to the exercise of the Option,
         multiplied by the number of shares so purchased, but only if
         the Market/Tender Offer Price is greater than such exercise
         price; and (iv) MBI's reasonable out-of-pocket expenses
         incurred in connection with the transactions contemplated by
         the Merger Agreement, including, without limitation, legal,
         accounting and investment banking fees.

                   The Option, which MBI required that Hawkeye grant as
         a condition to MBI's entering into the Merger Agreement, may
         increase the likelihood of consummation of the Merger.  

                   The foregoing is a summary of the material provisions
         of the Stock Option Agreement, a copy of which is filed as an 



                                       -24-<PAGE>







         exhibit to this Registration Statement.  See "AVAILABLE
         INFORMATION."  This summary is qualified in its entirety by
         reference to the Stock Option Agreement which is incorporated
         herein by this reference.

         SUPPORT AGREEMENTS

                   Concurrently with the execution of the Merger
         Agreement, the Supporting Stockholders (as previously defined),
         who as of the Record Date beneficially owned in the aggregate
         approximately ______% of the outstanding shares of Hawkeye
         Common Stock, executed separate Support Agreements with MBI
         pursuant to which each Supporting Stockholder agreed, among
         other things, that:  (i) Supporting Stockholder will not, and
         will not permit any company, trust or other entity controlled
         by Supporting Stockholder to, contract to sell, sell or
         otherwise transfer or dispose of any shares of Hawkeye Common
         Stock owned by the Supporting Stockholder, other than (a)
         pursuant to the Merger or (b) with MBI's prior written consent;
         (ii) all of the shares of Hawkeye Common Stock beneficially
         owned by Supporting Stockholder, or over which Supporting
         Stockholder has voting power or control, directly or
         indirectly, in each case at the record date for any meeting of
         shareholders of Hawkeye called to consider and vote to approve
         the Merger Agreement and/or the transactions contemplated
         thereby will be voted by the Supporting Stockholder to approve
         the Merger Agreement; (iii) Supporting Stockholder will, and
         will cause any company, trust or other entity controlled by
         Supporting Stockholder to, cooperate with MBI in connection
         with the Merger Agreement and the transactions contemplated
         thereby; and (iv) Supporting Stockholder will not, and will not
         permit any such company, trust or other entity, directly or
         indirectly (including through its officers, directors,
         employees or other representatives) to initiate, solicit or
         encourage any discussions, inquiries or proposals with any
         third party relating to an Acquisition Transaction, or provide
         any such person with information or assistance or negotiate
         with any such person with respect to an Acquisition Transaction
         or agree to or otherwise assist in the effectuation of any
         Acquisition Transaction.  Each Support Agreement may be
         terminated at the option of any party thereto at any time after
         the earlier of (i) the termination of the Merger Agreement and
         (ii) the day following the Closing Date. 

                   Each Supporting Stockholder and the number of shares
         of Hawkeye Common Stock beneficially owned by it over which it
         has voting power or control are as follows:  Charles A.
         Armstrong (2,429 shares); Michael P. Donohue (5,000 shares);
         Paul D. Dunlap (279,054 shares); R. Douglas Fisher (66,389
         shares); Kelly J. Housby (2,350 shares); Kyle J. Krause (6,020 
         shares); William A. Krause (357,551 shares); William J. Lillis
         (17,015

                                       -25-<PAGE>







         shares); J. Bruce Meriwether (49,893 shares); Terrence J.
         Montgomery (1,400 shares); Robert W. Murray (159,793 shares);
         Donald R. Runger (105,552 shares); Jack Schroeder (5,508
         shares); and Robert H. Wahlert (9,388 shares).

                   The foregoing is a summary of the material provisions
         of the Support Agreements, a form of which is filed as an
         exhibit to this Registration Statement.  See "AVAILABLE
         INFORMATION."  This summary is qualified in its entirety by
         reference to the Support Agreement which is incorporated herein
         by this reference.  

         BACKGROUND AND REASONS FOR THE MERGER; HAWKEYE BOARD
         RECOMMENDATION

                   BACKGROUND OF THE MERGER.  Over the past several
         years Hawkeye has pursued its strategy as an independent bank
         holding company.  From time to time during this period,
         representatives of DLJ made presentations to Hawkeye's
         management and the Hawkeye Board of Directors (the "Hawkeye
         Board") regarding banking industry trends, market outlook, the
         Midwest banking environment, Hawkeye's position and its
         strategic alternatives, including maintaining independence or
         exploring a business combination with a larger bank holding
         company.  

                   On January 24, 1995, DLJ representatives made a
         presentation to the Hawkeye Board on Hawkeye's present position
         in the banking industry, the current merger and acquisition
         environment, and an analysis of strategic alternatives
         available to Hawkeye, including remaining independent or
         pursuing a business combination at that time or in the future.
         At that meeting, the Hawkeye Board approved an agreement
         between Hawkeye and DLJ, which was entered into February 1,
         1995, engaging DLJ as Hawkeye's exclusive financial advisor to
         pursue the process of exploring potential strategic business
         combinations for Hawkeye.  See "-- Opinion of Hawkeye's
         Financial Advisor."

                   Commencing in early March 1995, DLJ delivered
         confidential materials regarding Hawkeye to MBI and nine other
         bank holding companies identified by Hawkeye as potential
         strategic merger partners.  Each bank holding company was asked
         to submit its indication of interest regarding a potential
         strategic merger with Hawkeye by March 31, 1995.  Three of
         these bank holding companies, including MBI, submitted
         preliminary, nonbinding indications of interest to acquire
         Hawkeye.  A fourth bank holding company, to whom DLJ did not
         deliver confidential materials, initiated contact with DLJ and
         indicated its interest in acquiring Hawkeye.


                                       -26-<PAGE>







                   At a meeting of the Hawkeye Board on April 18, 1995,
         DLJ reported on the status of the indications of interest
         received.  The Hawkeye Board discussed at this meeting its
         strategy in response to the indications of interest and
         authorized DLJ to proceed in an effort to increase the values
         of the indications of interest.  Following the board meeting,
         DLJ representatives pursued discussions with three of the
         companies, including MBI.  These discussions led to meetings
         between representatives of these three companies, including
         MBI, and Hawkeye senior management during the week of April 24,
         1995. No firm offers resulted from these meetings.

                   At the time of the late April meetings between
         representatives of MBI and Hawkeye, MBI Common Stock was
         trading around $36.00 per share. By late June 1995, the price
         per share of MBI Common Stock had increased to $43.88, while
         the price of Hawkeye Common Stock had not changed
         significantly.  This development led to a meeting in late June
         1995, initiated by DLJ, between representatives of DLJ and MBI,
         to discuss the feasibility of a merger at a premium to
         Hawkeye's market price that would be attractive to Hawkeye and
         acceptable to MBI.

                   In mid-July 1995, representatives of Hawkeye, MBI and
         DLJ met to discuss nonfinancial issues of a possible merger,
         which included similarities between MBI's and Hawkeye's
         approaches to community banking.  Ensuing negotiations of
         financial terms of a merger were conducted by telephone between
         representatives of MBI and, on behalf of Hawkeye, of DLJ.  This
         was followed by the preparation of a proposed merger agreement
         by MBI and its advisors.

                   On August 1, 1995, the Hawkeye Board met, with its
         financial and legal advisors present, to consider the proposed
         merger agreement.  All members of the Hawkeye Board were
         present in person, except Robert H. Wahlert, who participated
         in the meeting by telephone.  Representatives of DLJ presented
         the background of the proposal, reported on the history of
         discussions with all interested parties, and presented a
         preliminary analysis of a combination of the businesses of
         Hawkeye and MBI from a financial point of view and of the
         financial terms of the proposed merger agreement, including the
         Exchange Ratio.  See "-- Opinion of Hawkeye's Financial
         Advisor".  In addition, the Hawkeye Board reviewed and
         discussed with Hawkeye's legal counsel the terms and conditions
         of the proposed merger agreement and of the proposed stock
         option agreement and support agreements (the execution of each
         of which MBI had indicated would be a condition to its entering
         into a definitive agreement to effect a combination with
         Hawkeye).  Members of management of Hawkeye expressed their 
         views supporting the proposed merger with MBI.  Following
         discussion, the Hawkeye Board voted


                                       -27-<PAGE>







         unanimously to proceed with negotiation of a definitive
         agreement with MBI.

                   During the week of July 31, 1995, officers and
         representatives of Hawkeye conducted due diligence of MBI's
         business and operations.  On August 2 and 3, 1995, officers and
         representatives of Hawkeye and MBI met and negotiated the terms
         and conditions of the definitive Merger Agreement, the Stock
         Option Agreement and the Support Agreements.

                   On August 4, 1995, the Hawkeye Board again met with
         its financial and legal advisors.  All board members except Mr.
         Wahlert were present in person or participated in the meeting
         by telephone.  Members of management of Hawkeye reviewed with
         the board the results of Hawkeye's due diligence review of MBI,
         and Hawkeye's legal counsel reviewed therewith the final terms
         of the Merger Agreement, Stock Option Agreement and Support
         Agreements.  DLJ reviewed with the board the financial terms of
         the Merger Agreement and rendered to the Hawkeye Board its oral
         opinion that, as of August 4, 1995, the Exchange Ratio is fair
         from, a financial point of view, to Hawkeye shareholders.
         Following discussion, the Hawkeye Board concluded that the
         Merger Agreement was in the best interests of Hawkeye and its
         shareholders, and, by unanimous vote of the directors
         participating in the meeting, the Hawkeye Board adopted the
         Merger Agreement and Stock Option Agreement and directed that
         the Merger Agreement be submitted to a vote of the shareholders
         of Hawkeye with the favorable recommendation of the board.
         See"-- Opinion of Hawkeye's Financial Advisor."  

                   On August 4, 1995, following the meeting of the
         Hawkeye Board, Hawkeye and MBI executed the Merger Agreement
         and the Stock Option Agreement and the Supporting Stockholders
         executed and delivered the Support Agreements.  On August 4,
         1995, the parties issued a press release announcing the Merger.

                   HAWKEYE'S REASONS FOR THE MERGER; HAWKEYE BOARD
         RECOMMENDATION.  In reaching its conclusion that the Merger is
         in the best interests of Hawkeye and its shareholders, the
         Hawkeye Board carefully considered a variety of factors.  Among
         the factors considered were those described above and the
         following:

         --   The Exchange Ratio and other financial terms of the
              Merger, including the expectation that the Merger will be
              tax-free to Hawkeye shareholders, who will receive MBI
              Common Stock in the Merger which is traded on the NYSE,
              and accounted for under the pooling-of-interests method of
              accounting;



                                       -28-<PAGE>







         --   A comparison of the terms of the Merger with comparable
              transactions in Iowa and nationwide;

         --   Information concerning the business, financial condition,
              results of operations and prospects of MBI and Hawkeye;

         --   The value anticipated to be received by Hawkeye
              shareholders in the Merger in relation to the historical
              trading prices of Hawkeye Common Stock;

         --   The review by the Hawkeye Board with its legal and
              financial advisors of the provisions of the Merger
              Agreement, the Stock Option Agreement and the Support
              Agreements;

         --   The financial advice rendered by DLJ to the Hawkeye Board
              and the oral opinion rendered by DLJ that the Exchange
              Ratio is fair from a financial point of view to Hawkeye
              shareholders;

         --   Similarities between the community banking philosophies of
              Hawkeye and MBI, including MBI's policy to emphasize the
              local character of community banks and to continue the
              involvement of members of the Hawkeye bank boards, as well
              as members of management of such banks; and

         --   The likelihood that the proposed transaction would be
              consummated.

                   While each member of the Hawkeye Board individually
         considered the foregoing and other factors, the Hawkeye Board
         did not collectively assign any specific or relative weights to
         the factors considered and did not make any determination with
         respect to any individual factor.  The Hawkeye Board
         collectively made its determination with respect to the Merger
         based on the conclusion reached by its members, in light of the
         factors that each of them individually considered as
         appropriate, that the Merger is in the best interests of
         Hawkeye and its shareholders.

                   MBI'S REASONS FOR THE MERGER.  MBI has considered a
         number of factors, including, among other things, the financial
         condition of Hawkeye, the projected synergies between MBI and
         Hawkeye which are anticipated to result from the Merger, and
         the opportunity for MBI to expand into a new market area with
         the potential for increased revenues from marketing its
         existing products and services.  MBI has concluded that the
         Merger presents a unique opportunity for MBI to expand its
         position in the banking market in the state of Iowa through the
         acquisition of an established banking organization with
         expertise and a major market presence in the state.  MBI's 
         decision to pursue 


                                       -29-<PAGE>







         discussions with Hawkeye was primarily a result of MBI's
         assessment of the value of Hawkeye's franchise within the
         targeted market, its substantial asset base within that area
         and the compatibility of the businesses of the two
         organizations.

         OPINION OF HAWKEYE'S FINANCIAL ADVISOR

                   In February of 1995, the Board of Directors of
         Hawkeye retained DLJ to act as its exclusive financial advisor
         with respect to the sale, merger, consolidation, or any other
         business combination involving Hawkeye.  As part of its
         services, DLJ analyzed Hawkeye and its operations, historical
         performance and future prospects; identified and contacted a
         limited number of bank holding companies acceptable to the
         Hawkeye Board to solicit indications of interest in a possible
         business combination with Hawkeye; participated in certain
         negotiations concerning the financial aspects of the Merger
         Agreement under the guidance of the Hawkeye Board; and provided
         an opinion as to the fairness, from a financial point of view,
         of the Exchange Ratio to the holders of Hawkeye Common Stock.

                   At the meeting of the Hawkeye Board on August 4,
         1995, at which the terms of the proposed Merger were discussed
         and considered, DLJ rendered an oral opinion to the Hawkeye
         Board that, as of the date of such opinion, the Exchange Ratio
         was fair, from a financial point of view, to the holders of
         Hawkeye Common Stock.  DLJ has confirmed its August 4, 1995
         opinion by delivery of a written opinion to the Hawkeye Board
         dated the date of this Proxy Statement/Prospectus stating that,
         as of the date of this Proxy Statement/Prospectus and based on
         the matters set forth in such opinion, the Exchange Ratio is
         fair, from a financial point of view, to the holders of Hawkeye
         Common Stock.

                   THE FULL TEXT OF DLJ'S OPINION DATED THE DATE OF THIS
         PROXY STATEMENT/PROSPECTUS, WHICH SETS FORTH THE ASSUMPTIONS
         MADE, THE PROCEDURES FOLLOWED, THE MATTERS CONSIDERED AND THE
         LIMITS ON THE REVIEW UNDERTAKEN BY DLJ, IS ATTACHED AS APPENDIX
         B HERETO AND IS INCORPORATED HEREIN BY THIS REFERENCE.  THE
         DESCRIPTION OF THE DLJ OPINION SET FORTH IN THIS PROXY
         STATEMENT/PROSPECTUS IS QUALIFIED IN ITS ENTIRETY BY REFERENCE
         TO THE FULL TEXT OF SUCH OPINION.  HAWKEYE STOCKHOLDERS ARE
         URGED TO READ THE DLJ OPINION IN ITS ENTIRETY.

                   DLJ's opinion is limited to the fairness, from a
         financial point of view, of the Exchange Ratio to the holders
         of Hawkeye Common Stock and does not address Hawkeye's
         underlying business decision to proceed with the Merger, nor
         does it express an opinion as to the prices at which shares of 
         MBI Common 


                                       -30-<PAGE>







         Stock issued in the Merger may trade if and when they are
         issued or at any future time.  The opinion is directed only to
         the Exchange Ratio in the Merger and does not constitute a
         recommendation to any holder of Hawkeye Common Stock as to how
         such holder should vote with respect to the Merger Agreement at
         any meeting of holders of Hawkeye Common Stock.

                   DLJ is a nationally recognized investment banking
         firm regularly engaged, with respect to bank holding companies
         and other corporations, in the valuation of businesses and
         their securities in connection with mergers and acquisitions,
         negotiated underwritings, competitive biddings, secondary
         distributions of listed and unlisted securities, private
         placements, and valuations for corporate and other purposes.
         The Hawkeye Board selected DLJ on the basis of its familiarity
         with the financial services industry, its qualifications,
         ability and previous experience, and its reputation with
         respect to mergers and acquisitions.

                   For purposes of its opinion dated the date of this
         Proxy Statement/Prospectus and in connection with its review of
         the proposed transaction with MBI, DLJ, among other things:
         (i) participated in discussions and negotiations among
         representatives of Hawkeye and MBI and their respective legal
         advisors that resulted in the Merger Agreement; (ii) reviewed
         the terms of the Merger Agreement and Stock Option Agreement;
         (iii) reviewed this Proxy Statement/Prospectus; (iv) reviewed
         certain publicly available financial statements, both audited
         and unaudited, of Hawkeye and MBI, including those included in
         their respective Annual Reports on Form 10-K for the five years
         ended December 31, 1994 and the respective Quarterly Reports on
         Form 10-Q for the periods ended March 31, 1995 and June 30,
         1995; (v) reviewed certain financial statements and other
         financial and operating data concerning Hawkeye and MBI
         prepared by their respective managements; (vi) reviewed certain
         financial forecasts of Hawkeye prepared by its management and
         made inquiries of representatives of MBI management as to the
         expected future financial performance of MBI on a stand-alone
         basis and giving effect to the Merger; (vii) discussed certain
         aspects of the past and current business operations, financial
         condition and future prospects of Hawkeye and MBI with certain
         members of their respective managements; (viii) reviewed
         reported market prices and historical trading activity of
         Hawkeye Common Stock and MBI Common Stock; (ix) reviewed
         certain aspects of the financial performance of Hawkeye and MBI
         and compared such financial performance of Hawkeye and MBI,
         together with stock market data relating to Hawkeye Common
         Stock and MBI Common Stock, with similar data available for
         certain other financial institutions and certain of their 
         publicly traded securities; (x) reviewed certain of the


                                       -31-<PAGE>







         financial terms, to the extent publicly available, of certain
         recent business combinations involving other financial
         institutions; and (xi) conducted such other studies, analyses,
         and examinations as DLJ deemed appropriate.

                   In conducting its review and rendering its opinion
         dated the date hereof, DLJ relied upon and assumed without
         independent verification the accuracy and completeness of all
         of the financial and other information provided to DLJ by
         Hawkeye, MBI and their respective representatives and of the
         publicly available information reviewed by DLJ.  With Hawkeye's
         permission, DLJ also relied upon the managements of both
         Hawkeye and MBI as to the reasonableness and achievability of
         the financial and operating forecasts provided to DLJ (and the
         assumptions and bases therefor).  In that regard, DLJ assumed
         with Hawkeye's permission that such forecasts, including
         without limitation projected cost savings and operating
         synergies resulting from the Merger, reflect the best currently
         available estimates and judgments of such managements and that
         such forecasts will be realized in the amounts and in the time
         periods estimated by the managements of Hawkeye and MBI.  DLJ
         did not independently verify and relied on and assumed that the
         aggregate allowances for loan losses set forth in the balance
         sheets of each of Hawkeye and MBI at June 30, 1995 are adequate
         to cover such losses and complied fully with applicable law,
         regulatory policy and sound banking practice as of the date of
         such financial statements.  DLJ was not retained to and DLJ did
         not conduct a physical inspection of any of the properties or
         facilities of Hawkeye and MBI, did not make any independent
         evaluation or appraisal of the assets, liabilities or prospects
         of Hawkeye and MBI, was not furnished with any such evaluation
         or appraisal, and did not review any individual credit files.
         In rendering its opinion, DLJ was advised by Hawkeye and MBI
         and assumed with Hawkeye's permission that there were no other
         factors that would delay or subject to adverse conditions any
         necessary regulatory or governmental approval for the Merger,
         and further assumed that all conditions to the Merger will be
         satisfied and not waived and that the Merger will be accounted
         for as a pooling of interests.

                   Set forth below is a brief summary of the analyses
         performed by DLJ in reaching its August 4, 1995 opinion.

                   STOCK TRADING HISTORY.  DLJ examined the history of
         trading prices and volume for Hawkeye Common Stock and MBI
         Common Stock and the relationship between the movements of such
         trading prices to movements of the Standard & Poor's Regional
         Bank Index and of the trading prices of the common stocks of
         the companies in the Hawkeye Peer Group (as defined below) and 



                                       -32-<PAGE>







         the MBI Peer Group (consisting of AmSouth Bancorporation,
         Bancorp Hawaii, Inc., Bank South Corporation, BayBanks, Inc.,
         Central Fidelity Banks, Inc., Commerce Bancshares, Inc.,
         Compass Bancshares, Inc., Crestar Financial Corporation, Fifth
         Third Bancorp, First American Corporation, First Citizens
         Bancshares, Inc., First Commerce Corporation, First Empire
         State Corporation, First Hawaiian, Inc., First Security
         Corporation, First Tennessee National Corporation, First
         Virginia Banks, Inc., Firstar Corporation, Fourth Financial
         Corporation, Hibernia Corporation, Huntington Bancshares
         Incorporated, Integra Financial Corporation, Marshall & Ilsley
         Corporation, Mercantile Bankshares Corporation, Meridian
         Bancorp, Inc., Midlantic Corporation, Northern Trust
         Corporation, Old Kent Financial Corporation, ONBANCorp, Inc.,
         Regions Financial Corporation, Signet Banking Corporation,
         Southern National Corporation, SouthTrust Corporation, Star
         Banc Corporation, State Street Boston Corporation, Synovus
         Financial Corp., UJB Financial Corp., UMB Financial
         Corporation, Union Planters Corporation and West One Bancorp,
         all of which are publicly-traded U.S. bank holding companies
         with total assets in the approximate range of $5 billion to $25
         billion).

                   COMPARISON WITH SELECTED COMPANIES.  DLJ compared
         selected financial ratios (at or for the twelve months ended
         June 30, 1995) and trading multiples (as of July 28, 1995) for
         Hawkeye to the corresponding ratios and multiples of the
         Hawkeye Peer Group (consisting of AMCORE Financial, Inc.,
         Associated Banc-Corp, Brenton Banks, Inc., Chemical Financial
         Corporation, CNB Bancshares, Inc., Community First Bankshares,
         Inc., First Commerce Bancshares, Inc., First Financial
         Bancorp., First Michigan Bank Corporation, 1st Source
         Corporation, Firstbank of Illinois Co., FirsTier Financial,
         Inc., Fort Wayne National Corporation, Magna Group, Inc., Mark
         Twain Bancshares, Inc., Mid Am, Inc., Park National Corporation
         and River Forest Bancorp, Inc., all of which are publicly-
         traded commercial bank holding companies headquartered in the
         Midwest with total assets in the approximate range of $1
         billion to $5 billion).  DLJ also calculated implied values for
         Hawkeye Common Stock based on the mean trading multiples for
         the Hawkeye Peer Group.  The trading multiples used in
         calculating such implied values were market price as a multiple
         of:  (i) book value (which was 1.52x for Hawkeye as compared to
         a mean of 1.77x for the Hawkeye Peer Group); (ii) tangible book
         value (which was 1.72x for Hawkeye as compared to an mean of
         1.86x for the Hawkeye Peer Group) (iii) earnings per share
         ("EPS") for the twelve months ended June 30, 1995 (which was
         12.2x for Hawkeye as compared to a mean of 13.5x for the
         Hawkeye Peer Group); (iv) 1995 estimated EPS (which was 11.9x
         for Hawkeye as compared to a mean of 13.2x for the Hawkeye Peer 
         Group); and (v) 1996 estimated EPS (which was 11.3x for Hawkeye
         as compared to a mean of 11.4x for 


                                       -33-<PAGE>







         the Hawkeye Peer Group).  DLJ used Hawkeye management's
         projected earnings estimates for Hawkeye and earnings estimates
         as published by the Institutional Brokers Estimate System
         ("IBES") for the companies comprising the Hawkeye Peer Group.
         IBES is a data service which monitors and publishes a
         compilation of earnings estimates produced by selected research
         analysts on companies of interest to investors.  The implied
         values derived from this analysis ranged from $19.69 to $24.92
         per share of Hawkeye Common Stock.

                   DLJ also compared selected financial ratios (at or
         for the twelve months ended June 30, 1995) and trading
         multiples (as of July 28, 1995) for MBI to the corresponding
         ratios and multiples of the MBI Peer Group.  The trading
         multiples used in comparing MBI to the MBI Peer Group were
         market price as a multiple of:  (i) book value (which was 1.83x
         for MBI as compared to a mean of 1.70x for the MBI Peer Group);
         (ii) EPS for the twelve months ended June 30, 1995 (which was
         11.7x for MBI as compared to a mean of 11.2x for the MBI Peer
         Group); (iii) 1995 estimated EPS (which was 11.2x for MBI as
         compared to a mean of 11.5x for the MBI Peer Group); and (iv)
         1996 estimated EPS (which was 10.3x for MBI as compared to a
         mean of 10.5x for the MBI Peer Group).  DLJ used earnings
         estimates as published by IBES for MBI and the companies
         comprising the MBI Peer Group.

                   ANALYSIS OF SELECTED MERGERS.  As part of its
         analyses, DLJ reviewed two sets of mergers:  (i) eleven mergers
         and acquisitions involving Iowa-based depository institutions
         announced from January 1, 1990 to July 28, 1995 in which the
         total assets of the acquired company were greater than $200
         million (the "Iowa Transactions"), and (ii) eight mergers and
         acquisitions involving banks and bank holding companies
         headquartered anywhere in the United States announced from
         August 1, 1994 to July 28, 1995 (the "National Transactions").
         The Iowa Transactions involved the following pairs of
         institutions (acquiror/acquiree):  Firstar Corporation/Harvest
         Financial Corp., First Midwest Bancorp/CF Bancorp Inc.,
         Mercantile Bancorporation Inc./Plains Spirit Financial Corp.,
         Community First Bankshares, Inc./Minowa Bancshares, Inc.,
         FirsTier Financial Inc./Cornerstone Bank Group, Mercantile
         Bancorporation Inc./Metro Bancorporation, Inc., Iowa National
         Bankshares Corp./MidAmerica Financial Corp., Hawkeye
         Bancorporation/First Dubuque Corporation, Boatmen's Bancshares,
         Inc./First Interstate of Iowa, Inc., Norwest Corporation/
         Davenport Bank and Trust Company, and Firstar Corporation/Banks
         of Iowa, Inc.  The National Transactions involved the following
         pairs of institutions (acquiror/acquiree):  NationsBank 
         Corporation/Intercontinental Bank, Meridian Bancorp, Inc./
         United Counties Bancorp., Comerica Incorporated/Metrobank,
         Mercantile


                                       -34-<PAGE>







         Bancorporation/TC Bankshares Inc., Synovus Financial
         Corporation/NBSC Corporation, Meridian Bancorp, Inc./United
         Counties Bancorp., Norwest Corporation/Independent of Arizona
         and Boatmen's Bancshares, Inc./Worthen Banking Corporation.
         For each transaction for which data was available, DLJ
         calculated the multiple of the offer value to the acquired
         company's:  (i) EPS for the twelve months preceding ("LTM"),
         fiscal year containing ("FY Est.") and fiscal year following
         ("FY+1 Est.") the announcement date of the transaction; (ii)
         book value per share; (iii) tangible book value per share; and
         (iv) market price per share.

                   The calculations for the Iowa Transactions yielded a
         range of multiples of offer value to LTM EPS of 10.1x to 17.3x,
         with a mean of 13.1x and a median of 12.4x; a range of
         multiples of offer value to book value of 1.12x to 2.08x, with
         a mean of 1.51x and a median of 1.49x; a range of multiples of
         offer value to tangible book value of 1.12x to 2.68x, with a
         mean of 1.64x and a median of 1.59x; a range of multiples of
         offer value to market price of 1.10x to 1.38x, with a mean of
         1.25x and a median of 1.24x.

                   The calculations for the National Transactions
         yielded a range of multiples of offer value to LTM EPS of 10.3x
         to 21.6x, with a mean of 15.2x and a median of 14.9x; a range
         of multiples of offer value to FY Est. EPS of 14.1x to 19.8x,
         with a mean of 16.3x and a median of 15.0x; a range of
         multiples of offer value to FY+1 Est. EPS of 12.4x to 16.4x,
         with a mean of 14.2x and a median of 13.8x; a range of
         multiples of offer value to book value of 1.12x to 2.18x, with
         a mean of 1.85x and a median of 1.94x; a range of multiples of
         offer value to tangible book value of 1.27x to 2.71x, with a
         mean of 2.03x and a median of 2.01x.

                   DLJ compared these multiples with the corresponding
         multiples for the Merger, valuing the Exchange Ratio at $26.325
         (the "Exchange Value").  In calculating the multiples for the
         Merger, DLJ used Hawkeye's EPS for the twelve months ended June
         30, 1995, estimated EPS for the year ending December 31, 1995,
         estimated EPS for the year ending December 31, 1996, book value
         per share and tangible book value per share as of June 30,
         1995, and the closing price per share of Hawkeye Common Stock
         on July 28, 1995.  DLJ calculated that the Exchange Value
         represented multiples of 15.0x Hawkeye's LTM EPS, 14.7x its
         1995 estimated EPS, 13.9x its 1996 estimated EPS, 1.87x its
         book value per share, 2.11x its tangible book value per share
         and 1.23x its market price per share.

                   No company or transaction used in the above analyses
         as a comparison is identical to Hawkeye, MBI, or the Merger. 


                                       -35-<PAGE>







         Accordingly, an analysis of the results of the foregoing is not
         mathematical; rather, it involves complex considerations and
         judgments concerning differences in financial and operating
         characteristics of the companies and other facts that could
         affect the public trading value of the companies to which they
         are being compared.

                   DISCOUNTED CASH FLOW ANALYSIS.  Using discounted cash
         flow analysis, DLJ estimated the future dividend streams that
         Hawkeye could produce over the period from June 30, 1995
         through December 31, 1999, assuming a minimum required tangible
         equity level of 7.0% of tangible total assets, if Hawkeye
         performed in accordance with forecasts provided by management
         of Hawkeye.  DLJ also estimated the terminal value of Hawkeye's
         common equity as of December 31, 1999 by applying multiples of
         10.0x to 12.0x to Hawkeye's projected 1999 earnings.  DLJ
         selected the range of terminal multiples on the basis of past
         and current trading multiples for Hawkeye and other commercial
         banks.  The dividend streams and terminal value were discounted
         to present values as of June 30, 1995 using discount rates
         ranging from 12.0% to 13.0%, which reflect different
         assumptions regarding the required rates of return of holders
         and prospective buyers of Hawkeye Common Stock.  The range of
         present values per fully diluted share of Hawkeye Common Stock
         resulting from this analysis was $18.17 to $21.29.

                   PRO FORMA MERGER ANALYSIS.  In the course of
         discussions preceding execution of the Merger Agreement,
         management of MBI informed DLJ that, with various cost savings
         and revenue enhancements that it believed could be obtained as
         a result of the Merger, management of MBI expected the
         transaction to be slightly dilutive to MBI's EPS in the first
         year following the Effective Time and slightly accretive in the
         second.  Management of MBI also informed DLJ that it
         anticipated the transaction would initially be slightly
         dilutive to MBI's book value and tangible book value per share.
         DLJ performed certain calculations to confirm MBI's statements
         regarding the anticipated effect of the Merger on MBI's EPS,
         book value per share and tangible book value per share.

                   DLJ also analyzed certain additional pro forma
         effects of the Merger.  DLJ's analysis showed that holders of
         Hawkeye Common Stock would experience an increase in dividend
         income of 13.6%, based on Hawkeye's and MBI's current dividend
         payments as of August 1, 1995, and that the shares of MBI
         Common Stock issued in the Merger would represent 12.4% of the
         pro forma total number of outstanding shares of MBI Common
         Stock.



                                       -36-<PAGE>







                   In connection with its written opinion dated as of
         the date of this Proxy Statement/Prospectus, DLJ performed
         procedures to update certain of its analyses and reviewed the
         assumptions on which such analyses were based and the factors
         considered in connection therewith.  In updating its opinion,
         DLJ did not utilize any methods of analysis in addition to
         those described.

                   The summary set forth above describes the material
         analyses performed by DLJ and presented to the Hawkeye Board
         and does not purport to be a complete description of such
         analyses.  The preparation of a fairness opinion is a complex
         process and is not necessarily susceptible to partial analysis
         or summary description.  DLJ believes that its analyses must be
         considered as a whole and that selecting portions of its
         analyses, without considering all factors and analyses, would
         create an incomplete view of the process underlying the
         analyses by which DLJ reached its opinions.  The ranges of
         valuations resulting from any particular analysis described
         above should not be taken to be DLJ's view of the actual value
         of Hawkeye, the combined company or the trading price for MBI
         Common Stock.

                   In performing its analyses, DLJ made numerous
         assumptions with respect to industry performance, general
         business and economic conditions and other matters, many of
         which are beyond the control of Hawkeye and MBI.  The analyses
         performed by DLJ are not necessarily indicative of actual
         values or actual future results, which may be significantly
         more or less favorable than suggested by such analyses.  Such
         analyses were prepared solely as part of DLJ's analysis of the
         fairness of the Exchange Ratio, from a financial point of view,
         to the holders of Hawkeye Common Stock.  The analyses do not
         purport to be appraisals or to reflect the prices at which a
         company or its securities may actually be bought or sold.  DLJ
         used in its analyses various projections prepared by Hawkeye's
         management and relied on statements of MBI's management as to
         the expected future financial performance of MBI.  Neither
         Hawkeye nor MBI publicly discloses internal management
         projections of the type provided to DLJ in connection with its
         review.  Such projections were not prepared for, or with a view
         toward, public disclosure.  In addition, such projections were
         based on numerous variables and assumptions that are inherently
         uncertain, including, without limitation, factors related to
         general economic and competitive conditions, many of which are
         beyond the control of the managements of MBI and Hawkeye.
         Accordingly, actual results could vary significantly from those
         set forth in such projections.

                   Pursuant to the terms of a letter agreement dated
         February 1, 1995 (the "Engagement Letter"), for DLJ's services 


                                       -37-<PAGE>







         in connection with the Merger, including the rendering of its
         opinions, Hawkeye (i) has paid DLJ $475,000, with an additional
         $75,000 payable on December 14, 1995, and (ii) has agreed to
         pay DLJ an amount equal to 0.70% of the aggregate amount of
         consideration received by the Company and/or its shareholders
         (treating any shares issuable upon exercise of options,
         warrants or other rights of conversion as outstanding), less
         the amount paid by the Company pursuant to clause (i) above.
         Because the major portion of the aggregate consideration to be
         received by the holders of Hawkeye Common Stock is to be paid
         in the form of securities, the Engagement Letter provides that
         the value of such securities, for purposes of calculating the
         fee payable to DLJ, will be determined by the last sale price
         for such securities on the last trading day thereof prior to
         consummation of the Merger.  Such fee shall be payable in cash
         upon consummation of the Merger.  Hawkeye has also agreed under
         the Engagement Letter to reimburse DLJ for all reasonable out-
         of-pocket expenses, including reasonable fees and expenses of
         legal counsel, and has agreed to indemnify DLJ against certain
         expenses and liabilities incurred in connection with its
         engagement, including liabilities under Federal securities law.

                   DLJ was initially retained by Hawkeye to provide
         certain ongoing financial advisory services, including the
         review and analysis of financial and structural alternatives
         available to Hawkeye with a view to meeting its long term,
         strategic objectives.  This initial engagement was governed by
         a letter agreement dated June 14, 1993 pursuant to which
         Hawkeye paid DLJ a fee of $75,000 for a one-year engagement.
         Hawkeye renewed DLJ's engagement for an additional year in a
         letter agreement dated June 14, 1994, pursuant to which Hawkeye
         paid DLJ a fee of $150,000.  Both letter agreements also
         provided for the reimbursement of DLJ's reasonable out-of-
         pocket expenses and the indemnification of DLJ against certain
         expenses and liabilities incurred in connection with its
         engagement, including liabilities under Federal securities law.

                   DLJ may, in the ordinary course of its business,
         actively trade securities of Hawkeye and MBI for its own
         account or for the accounts of customers and thus may hold long
         or short positions in such securities at any time.

         INTERESTS OF CERTAIN PERSONS IN THE MERGER

                   In considering the recommendation of the Hawkeye
         Board with respect to the Merger Agreement, Hawkeye
         shareholders should be aware that certain executive officers
         and directors of Hawkeye (or their affiliates) have interests
         in the Merger that are different from and in addition to the
         interests of Hawkeye shareholders generally.  The Board of 



                                       -38-<PAGE>







         Directors of Hawkeye was aware of these interests and took
         these interests into account in adopting the Merger Agreement.

                   EMPLOYMENT AGREEMENT.  On August 4, 1995, Robert W.
         Murray, President and Chief Executive Officer of Hawkeye,
         entered into an employment agreement (the "Employment
         Agreement") with MBI.  The Employment Agreement is effective
         only upon the consummation of the Merger.  It provides for the
         employment of Mr. Murray as Chairman of Hawkeye Bank, Des
         Moines, and any successor thereto ("Hawkeye Bank"), for a term
         of four years from the Effective Time (the "Employment
         Period").  In addition, Mr. Murray will be proposed for
         election to the Board of Directors of MBI for a term expiring
         on the third anniversary of the MBI annual meeting date for the
         year in which the Merger is consummated.  Hawkeye Bank will pay
         Mr. Murray for each consecutive year of the Employment Period a
         base salary (inclusive in each case of all fees which would
         otherwise be payable to him as a director of Hawkeye Bank) of
         $250,000, $150,000, $100,000 and $100,000, respectively.  Mr.
         Murray will also be entitled during the Employment Period,
         unless terminated for "cause" (as defined in the Employment
         Agreement), to employee benefits and customary prerequisites
         equivalent to those provided by MBI to similarly situated
         officers, including, pension benefits, health and welfare
         benefits, disability insurance benefits, life insurance
         benefits, vacation benefits and other fringe benefits.

                   If Mr. Murray's employment is terminated by reason of
         death or "disability" (as defined in the Employment Agreement)
         or is involuntarily terminated other than for "cause," in each
         case prior to the expiration of the Employment Period, Mr.
         Murray, or his estate, will be entitled to continue to be paid
         his salary under the Employment Agreement to the same extent as
         if Mr. Murray had completed his employment obligations
         thereunder.

                   INDEMNIFICATION.  In the Merger Agreement, MBI agreed
         that the Merger will not affect or diminish any of Hawkeye's
         duties and obligations of indemnification existing as of the
         Effective Time in favor of employees, agents, directors or
         officers of Hawkeye or its subsidiaries arising by virtue of
         their respective articles of incorporation or bylaws in the
         form in effect on August 4, 1995, or arising by operation of
         law or by virtue of any contract, resolution or other agreement
         or document existing on August 4, 1995, and such duties and
         obligations will continue in full force and effect for so long
         as they would (but for the Merger) otherwise survive.

                   OTHER INTERESTS.  Certain executive officers,
         including certain directors, of Hawkeye currently hold Hawkeye 



                                       -39-<PAGE>







         employee stock options and/or Hawkeye stock appreciation rights
         which will be converted at the Effective Time into rights with
         respect to MBI Common Stock.  See "TERMS OF THE PROPOSED MERGER
         -- Employee Benefits."  In addition, Robert W. Murray and 
         R. Douglas Fisher will be entitled to receive in
         connection with the Merger up to $900,000 and $525,000,
         respectively, pursuant to certain change of control agreements
         between each of them and Hawkeye.  In connection with the anticipated
         retirement of Donald R. Runger, Hawkeye and Mr. Runger entered into
         a deferred compensation agreement on July 25, 1995, pursuant to
         which Mr. Runger will be paid in the aggregate $775,000.  The
         deferred compensation agreement superseded and replaced the change
         of control agreement between Hawkeye and Mr. Runger.

         See "-- Employee Benefits."

         CONDITIONS OF THE MERGER

                   The respective obligations of MBI and Hawkeye to
         consummate the Merger are subject to the fulfillment or waiver
         at or prior to the Effective Time of the following conditions: 

                        (i)  The Merger Agreement shall have received
              the requisite approval of shareholders of Hawkeye.

                       (ii)  All requisite approvals of the Merger
              Agreement and the transactions contemplated thereby shall
              have been received from the Federal Reserve Board, the
              Superintendent of the Banking Division of the Commerce
              Department of the State of Iowa (the "State Bank
              Regulator"), if required, and any other necessary
              governmental or regulatory authority or agency (the
              "Regulatory Authorities").

                      (iii)  The Registration Statement shall have been
              declared effective and shall not be subject to a stop
              order or any threatened stop order.

                       (iv)  Neither MBI nor Hawkeye shall be subject to
              any order, decree or injunction of a court or agency of
              competent jurisdiction which enjoins or prohibits the
              consummation of the Merger.

                        (v)  Each of MBI and Hawkeye shall have
              received, from counsel reasonably satisfactory to it, an
              opinion reasonably satisfactory in form and substance to
              it to the effect that the Merger will constitute a
              reorganization within the meaning of Section 368 of the
              Internal Revenue Code and that no gain or loss will be
              recognized by the shareholders of Hawkeye to the extent
              they receive MBI Common Stock solely in exchange for
              shares of Hawkeye Common Stock.





                                       -40-<PAGE>







                   Hawkeye's obligation to effect the Merger is subject
         to the fulfillment or waiver at or prior to the Effective Time
         of the following additional conditions:

                        (i)  The representations and warranties of MBI
              set forth in Article III of the Merger Agreement shall be
              true and correct in all material respects as of August 4,
              1995 and as of the Effective Time (as though made on and
              as of the Effective Time except (A) to the extent such
              representations and warranties are by their express
              provisions made as of a specified date or period and (B)
              for the effect of transactions contemplated by the Merger
              Agreement).

                       (ii)  MBI shall have performed in all material
              respects all obligations required to be performed by it
              under the Merger Agreement prior to the Effective Time.

                      (iii)  Hawkeye shall have received a certificate
              of the chairman or chief financial officer of MBI as to
              the satisfaction of the conditions set forth in clauses
              (i) and (ii).

                   MBI's obligation to effect the Merger is subject to
         the fulfillment or waiver at or prior to the Effective Time of
         the following additional conditions:

                        (i)  The representations and warranties of
              Hawkeye set forth in Article II of the Merger Agreement
              shall be true and correct in all material respects as of
              August 4, 1995 and as of the Effective Time (as though
              made on and as of the Effective Time except (A) to the
              extent such representations and warranties are by their
              express provisions made as of a specified date or period
              and (B) for the effect of transactions contemplated by the
              Merger Agreement).

                       (ii)  Hawkeye shall have performed in all
              material respects all obligations required to be performed
              by it under the Merger Agreement prior to the Effective
              Time.

                      (iii)  MBI shall have received certificates of the
              chairman and the president and chief executive officer of
              Hawkeye as to the satisfaction of the conditions set forth
              in clauses (i) and (ii).

                       (iv)  MBI shall have received an opinion
              addressed to MBI from KPMG Peat Marwick LLP, satisfactory
              in form and substance to MBI, stating that the Merger will
              qualify for pooling-of-interests accounting treatment (the 


                                       -41-<PAGE>







              "Pooling Letter") and such opinion shall not have been
              withdrawn (see "-- Accounting Treatment").

         TERMINATION OF THE MERGER AGREEMENT

                   The Merger Agreement may be terminated at any time
         prior to the Effective Time, whether before or after any
         requisite shareholder approval:  (i) by mutual consent of the
         Executive Committee of the Board of Directors of MBI and the
         Board of Directors of Hawkeye; (ii) by the Executive Committee
         of the Board of Directors of MBI or the Board of Directors of
         Hawkeye (A) at any time after August 4, 1996 if the Merger
         shall not theretofore have been consummated (provided that the
         terminating party is not then in material breach of the Merger
         Agreement), (B) if the Federal Reserve Board has denied
         approval of the Merger and such denial has become final and
         nonappealable or (C) if shareholders of Hawkeye shall not have
         approved the Merger Agreement at the Special Meeting following
         a favorable recommendation of Hawkeye's Board of Directors;
         (iii) by the Executive Committee of the Board of Directors of
         MBI in the event (A) of a material breach by Hawkeye of the
         Merger Agreement, which breach is not cured within 30 days
         after written notice thereof to Hawkeye by MBI or (B) that
         (x)(1) the estimated costs of all remedial or other corrective
         actions or measures with regard to certain real properties
         referred to in the Merger Agreement required by applicable law
         exceed $5,000,000 in the aggregate or (2) such cost cannot be
         reasonably estimated to be such amount or less with any
         reasonable degree of certainty and (y) after providing Hawkeye
         with written notice of MBI's intent to so terminate the Merger
         Agreement Hawkeye shall not have taken and completed, within
         the six-month period from the date of such notice, to the
         reasonable satisfaction of MBI, all such remedial or other
         corrective actions and measures (the aggregate cost of which
         incurred by Hawkeye and its subsidiaries shall not exceed
         $5,000,000); or (iv) by the Board of Directors of Hawkeye in
         the event of a material breach by MBI of the Merger Agreement,
         which breach is not cured within 30 days after written notice
         thereof is given to MBI by Hawkeye. 

                   No assurance can be given that the Merger will be
         consummated, that MBI and Hawkeye will not mutually agree to
         terminate the Merger Agreement or that MBI or Hawkeye will not
         elect to terminate the Merger Agreement if the Merger has not
         been consummated on or before August 4, 1996.  

         CLOSING AND EFFECTIVE TIME

                   Unless the parties otherwise agree, the Closing of
         the Merger will take place at 10:00 A.M., local time, on the 



                                       -42-<PAGE>







         date on which the Effective Time occurs, which shall be such
         date as MBI notifies Hawkeye in writing but not earlier than
         the Approval Date, and not later than the first business day of
         the first full calendar month commencing at least five business
         days after the Approval Date.  The Effective Time will occur
         upon the filing of the articles of merger with the Iowa
         Secretary of State.  It is currently anticipated that the
         Effective Time will occur shortly after the date of the Special
         Meeting assuming the Merger Agreement is approved at such
         meeting.

         SURRENDER OF HAWKEYE STOCK CERTIFICATES AND RECEIPT OF MBI
         COMMON STOCK

                   Except for the shares of Hawkeye Common Stock subject
         to the exercise of dissenters' rights, at the Effective Time of
         the Merger, each outstanding share of Hawkeye Common Stock
         (other than shares held by Hawkeye or MBI or any of their
         respective subsidiaries, in each case other than in a fiduciary
         capacity or as a result of debts previously contracted, which
         shall be cancelled) will be converted into the right to receive
         .585 of a share of MBI Common Stock.

                   As soon as practicable after the Effective Time,
         holders of record of certificates formerly representing shares
         of Hawkeye Common Stock (the "Certificates") will be instructed
         to tender such Certificates to the Exchange Agent pursuant to a
         letter of transmittal that MBI will deliver or cause to be
         delivered to such holders.  Such letters of transmittal will
         specify that risk of loss and title to Certificates will pass
         only upon delivery of such Certificates to the Exchange Agent.

                   After the Effective Time, each previous holder of a
         Certificate that surrenders such Certificate to the Exchange
         Agent will, upon acceptance thereof by the Exchange Agent, be
         entitled to a certificate or certificates representing the
         number of full shares of MBI Common Stock into which the
         Certificate so surrendered will have been converted pursuant to
         the Merger Agreement and any dividend theretofore declared and
         not yet paid with respect to such shares of MBI Common Stock,
         without interest.  The Exchange Agent will accept Certificates
         upon compliance with such reasonable terms and conditions as
         MBI or the Exchange Agent may impose to effect an orderly
         exchange thereof in accordance with customary exchange
         practices.  Certificates must be appropriately endorsed or
         accompanied by such instruments of transfer as MBI or the
         Exchange Agent may require.

                   Each outstanding Certificate will, until duly
         surrendered to the Exchange Agent, be deemed to evidence 
         ownership


                                       -43-<PAGE>







         of the Merger Consideration into which the stock previously
         represented by such Certificate will have been converted in the
         Merger.  After the Effective Time, holders of Certificates will
         cease to have rights with respect to the stock previously
         represented by such Certificates, and their sole right will be
         to exchange such Certificates for such Merger Consideration.
         After the Effective Time, there will be no further transfer on
         the records of Hawkeye of Certificates, and if such
         Certificates are presented to Hawkeye for transfer, they will
         be cancelled against delivery of such Merger Consideration.

                   MBI will not be obligated to deliver the Merger
         Consideration to which any former holder of Hawkeye Common
         Stock is entitled as a result of the Merger until such holder
         surrenders the Certificates as provided herein.  No dividends
         declared on MBI Common Stock will be remitted to any person
         entitled to receive MBI Common Stock in the Merger until such
         person surrenders the Certificate representing the right to
         receive such MBI Common Stock, at which time such dividends
         will be remitted to such person, without interest and less any
         taxes that may have been imposed thereon.

                   Certificates surrendered for exchange by any person
         constituting an "affiliate" of Hawkeye for purposes of Rule 145
         of the Securities Act will not be exchanged for certificates
         representing MBI Common Stock until MBI has received a written
         agreement from such person not to sell or otherwise dispose of
         any shares of MBI Common Stock received by such person until
         financial results covering at least 30 days of combined
         operations have been published and thereafter only in
         compliance with Rule 145.  See "INFORMATION REGARDING MBI STOCK
         -- Restrictions on Resale of MBI Capital Stock by Affiliates;
         Affiliate Agreement."

                   Neither the Exchange Agent nor Hawkeye nor MBI, nor
         any affiliate thereof, will be liable to any holder of stock
         represented by any Certificate for any Merger Consideration
         paid to a public official pursuant to applicable abandoned
         property, escheat or similar laws.  MBI and the Exchange Agent
         will be entitled to rely upon the stock transfer books of
         Hawkeye to establish the identity of those persons entitled to
         receive Merger Consideration, which books will be conclusive
         with respect thereto.  In the event of a dispute with respect
         to ownership of stock represented by any Certificate, MBI and
         the Exchange Agent will be entitled to deposit any Merger
         Consideration represented thereby in escrow with an independent
         third party and thereafter be relieved with respect to any
         claims thereto.




                                       -44-<PAGE>







         FRACTIONAL SHARES

                   No fractional shares of MBI Common Stock will be
         issued to the former shareholders of Hawkeye in connection with
         the Merger.  Each former holder of Hawkeye Common Stock who
         otherwise would have been entitled to receive a fraction of a
         share of MBI Common Stock will receive cash in lieu thereof,
         without interest, in an amount equal to the holder's fractional
         share interest multiplied by the closing stock price of MBI
         Common Stock on the NYSE Composite Tape as reported in The Wall
         Street Journal (or in the absence thereof, by any other
         authoritative source) on the last business day preceding the
         Effective Time.  No shareholder of Hawkeye entitled to receive
         cash in lieu of fractional shares will be entitled to
         dividends, voting rights or any other rights in respect of such
         fractional shares.  Cash received by Hawkeye shareholders in
         lieu of fractional shares may give rise to taxable income.  See
         "CERTAIN FEDERAL INCOME TAX CONSEQUENCES OF THE MERGER."

         REGULATORY APPROVAL

                   The obligations of the parties to effect the Merger
         are subject to prior approval of the Federal Reserve Board and
         the State Bank Regulator, if required, and any other necessary
         regulatory authority.

                   The Merger is subject to the prior approval of the
         Federal Reserve Board under the BHCA.  Under the BHCA, the
         Federal Reserve Board is required, in approving transactions
         such as the Merger, to take into consideration the financial
         and managerial resources and future prospects of the existing
         and proposed institutions and the convenience and needs of the
         communities to be served.  In considering financial resources
         and future prospects, the Federal Reserve Board will, among
         other things, evaluate the adequacy of the capital levels of
         MBI and its bank subsidiaries following the Merger.

                   The BHCA prohibits the Federal Reserve Board from
         approving the Merger if the Merger would result in a monopoly
         or be in furtherance of any combination or conspiracy to
         monopolize or to attempt to monopolize the business of banking
         in any part of the United States, or if their effect in any
         section of the country may be substantially to lessen
         competition or to tend to create a monopoly, or if it would in
         any other manner result in a restraint of trade, unless the
         Federal Reserve Board finds that the anticompetitive effects of
         the Merger are clearly outweighed in the public interest by the
         probable effect of transactions in meeting the convenience and
         needs of the communities to be served.  In addition, under the
         Community Reinvestment Act of 1977, as amended, the Federal 



                                       -45-<PAGE>







         Reserve Board must take into account the record of performance
         of the existing institutions in meeting the credit needs of the
         entire community, including low- and moderate-income
         neighborhoods, served by such institutions.

                   Under the BHCA, the Merger may not be consummated
         until the 30th day following the date of Federal Reserve Board
         approval (or, if the Department of Justice has not submitted
         adverse comments with respect to competitive factors, the 15th
         day), during which time the United States Department of Justice
         may challenge the Merger on antitrust grounds.  The
         commencement of an antitrust action would stay the
         effectiveness of the Federal Reserve Board's approval unless a
         court specifically orders otherwise.  

                   The BHCA provides for the publication of notice and
         public comment on the applications and authorizes the Federal
         Reserve Board to permit interested parties to intervene in the
         proceedings.  If an interested party is permitted to intervene,
         such intervention could delay the regulatory approvals required
         for consummation of the Merger. 

                   Application for such Federal Reserve Board approval has 
         been or will be filed.  MBI and Hawkeye are not aware of any 
         governmental approvals or actions that may be required for consum-
         mation of the Merger other than as described above.  Should any 
         other approval or action be required, it is presently conemplated
         that such approval or action would be sought.  There can be no ass-
         urance that any necessary regulatory approval or action will be re-
         ceived or taken, as to the timing of such approval or action, that
         no action will be brought challenging such approval or action, or if
         such a challenge is brought, the result thereof, or that any such 
         approval or action will not be conditioned in a manner that would 
         cause the parties to abandon the Merger. 

                   See "-- Effective Time," "-- Conditions of the
         Merger," "-- Waiver and Amendment," "-- Termination of the
         Merger Agreement" and "SUPERVISION AND REGULATION."

         BUSINESS PENDING THE MERGER

                   From August 4, 1995 to the Effective Time, each of
         MBI and Hawkeye agreed to, and agreed to cause each of their
         respective subsidiaries to, conduct its business according to
         the ordinary and usual course consistent with past practices, 
         and agreed to, and agreed to cause each such subsidiary to, use
         its best efforts to maintain and preserve its business
         organization, employees and advantageous business relationships
         and retain the services of its officers and key employees.



                                       -46-<PAGE>







                   Furthermore, from August 4, 1995 to the Effective
         Time, the Merger Agreement provides that, except as provided in
         the Merger Agreement, Hawkeye has agreed not to, and to cause
         each of its subsidiaries not to, without the prior written
         consent of MBI:

                        (i)  declare, set aside or pay any dividends or
              other distributions, directly or indirectly, in respect of
              its capital stock (other than dividends from a subsidiary
              of Hawkeye to Hawkeye or another subsidiary of Hawkeye),
              except that Hawkeye may declare and pay (x) for dividends
              payable in 1995, regular quarterly cash dividends of not
              more than $0.17 per share on the Hawkeye Common Stock, and
              (y) for dividends payable in 1996, quarterly cash
              dividends of not more than $0.19 per share; PROVIDED, that
              Hawkeye may not declare or pay any dividends on Hawkeye
              Common Stock for any period in which its shareholders will
              be entitled to receive any regular quarterly dividend on
              the shares of MBI Common Stock to be issued in the Merger;

                       (ii)  enter into or amend any employment,
              severance or similar agreement or arrangement with any
              director or officer or employee, or materially modify any
              of Hawkeye's employee benefit plans specified in the
              Merger Agreement or grant any salary or wage increase or
              materially increase any employee benefit (including
              incentive or bonus payments), except normal individual
              increases in compensation to employees consistent with
              past practice, or as required by law or contract;

                      (iii)  authorize, recommend (subject to the
              fiduciary duties of Hawkeye's Board of Directors, upon
              written advice of counsel to Hawkeye, which counsel is
              reasonably acceptable to MBI), propose or announce an
              intention to authorize, recommend or propose, or enter
              into an agreement in principle with respect to, any
              merger, consolidation or business combination (other than
              the Merger), any acquisition of a material amount of
              assets or securities, any disposition of a material amount
              of assets or securities or any release or relinquishment
              of any material contract rights;

                       (iv)  propose or adopt any amendments to its
              articles of incorporation, association or other charter
              document or by-laws;

                        (v)  issue, sell, grant, confer or award any of
              its Equity Securities (as defined in the Merger Agreement)

                                       -47-<PAGE>







              (except shares of Hawkeye Common Stock issued upon
              exercise of Hawkeye Employee Stock Options outstanding on
              August 4, 1995) or effect any stock split or adjust,
              combine, reclassify or otherwise change its capitalization
              as it existed on August 4, 1995;

                       (vi)  purchase, redeem, retire, repurchase, or
              exchange, or otherwise acquire or dispose of, directly or
              indirectly, any of its Equity Securities, whether pursuant
              to the terms of such Equity Securities or otherwise;

                      (vii)  (A)  without first consulting with MBI,
              enter into, renew or increase any loan or credit
              commitment (including stand-by letters of credit) to, or
              invest or agree to invest in any person or entity or
              modify any of the material provisions or renew or
              otherwise extend the maturity date of any existing loan or
              credit commitment (collectively, "lend to") in an amount
              in excess of $1,500,000, or in an amount which, when
              aggregated with any and all loans or credit commitments to
              such person or entity, would be in excess of $1,500,000;
              (B) without first obtaining the written consent of MBI,
              lend to any person or entity in an amount in excess of
              $3,000,000 or in an amount which, when aggregated with any
              and all loans or credit commitments to such person or
              entity, would be in excess of $3,000,000; (C) Lend to any
              person other than in accordance with lending policies as
              in effect on August 4, 1995; PROVIDED that in the case of
              clauses (B) and (C) Hawkeye or any Hawkeye subsidiary may
              make any such loan in the event (1) Hawkeye or any Hawkeye
              subsidiary has delivered to MBI or its designated
              representative a notice of its intention to make such loan
              and such information as MBI or its designated
              representative may reasonably require in respect thereof
              and (2) MBI or its designated representative shall not
              have reasonably objected to such loan by giving written or
              facsimile notice of such objection within two business
              days following the delivery to MBI of the notice of
              intention and information as aforesaid; or (D) Lend to any
              person or entity any of the loans or other extensions of
              credit to which, or investments in which, are on a "watch
              list" or similar internal report of Hawkeye or any Hawkeye
              subsidiary (except those denoted "pass" thereon), in an
              amount in excess of $500,000; PROVIDED, HOWEVER, that
              nothing described in this paragraph will prohibit Hawkeye
              or any Hawkeye subsidiary from honoring any contractual
              obligation in existence on August 4, 1995, PROVIDED
              FURTHER, HOWEVER, that notwithstanding clauses (A) and (B)
              of this paragraph, Hawkeye is authorized without first
              consulting with MBI or obtaining MBI's prior written
              consent, to increase the aggregate amount of 



                                       -48-<PAGE>







              any credit facilities theretofore established in favor of
              any person or entity (each a "Pre-Existing Facility"),
              provided that the aggregate amount of any and all such
              increases with respect to any Pre-Existing Facility shall
              not be in excess of the lesser of ten percent (10%) of
              such Pre-Existing Facility or $250,000;

                     (viii)  directly or indirectly (including through
              its officers, directors, employees or other
              representatives) initiate, solicit or encourage any
              discussions, inquiries or proposals with any third party
              relating to the disposition of any significant portion of
              the business or assets of Hawkeye or any Hawkeye
              subsidiary or the acquisition of Equity Securities of
              Hawkeye or any Hawkeye subsidiary or the merger of Hawkeye
              or any Hawkeye subsidiary with any person (other than MBI)
              or any similar transaction (each such transaction being
              referred to as an "Acquisition Transaction"), or provide
              any such person with information or assistance or
              negotiate with any such person with respect to an
              Acquisition Transaction, and Hawkeye shall promptly notify
              MBI orally of all the relevant details relating to all
              inquiries, indications of interest and proposals which it
              may receive with respect to any Acquisition Transaction;

                       (ix)  take any action that would (A) materially
              impede or delay the consummation of the transactions
              contemplated by the Merger Agreement or the ability of MBI
              or Hawkeye to obtain any approval of any Regulatory
              Authority required for the transactions contemplated by
              the Merger Agreement or to perform its covenants and
              agreements under the Merger Agreement or (B) prevent the
              Merger from qualifying as a reorganization within the
              meaning of Section 368 of the Internal Revenue Code;

                        (x)  other than in the ordinary course of
              business consistent with past practice, incur any
              indebtedness for borrowed money, assume, guarantee,
              endorse or otherwise as an accommodation become
              responsible or liable for the obligations of any other
              individual, corporation or other entity, or, without prior
              approval of MBI, which shall not be unreasonably withheld,
              pay fees and expenses to attorneys, accountants or
              investment bankers in connection with the Merger in excess
              of the amount set forth in the Merger Agreement;

                       (xi)  restructure or materially change its
              investment securities portfolio, through purchases, sales
              or otherwise, or the manner in which the portfolio is
              classified or reported or execute any individual
              investment 


                                       -49-<PAGE>







              transaction (A) in United States Treasury securities in
              excess of $5,000,000 and (B) in any other investment
              securities in excess of $1,000,000; or

                      (xii)  agree in writing or otherwise to take any
              of the foregoing actions or engage in any activity, enter
              into any transaction or take or omit to take any other act
              which would make any of the representations and warranties
              of Hawkeye in the Merger Agreement untrue or incorrect in
              any material respect if made anew after engaging in such
              activity, entering into such transaction, or taking or
              omitting such other act.

         BANK MINORITY SHARES

                   Hawkeye has agreed to use, as soon as reasonably
         possible, all reasonable efforts to cooperate with MBI in
         respect of each person holding capital stock of any of the bank
         subsidiaries of Hawkeye (other than Hawkeye or any of its
         subsidiaries), whether as qualifying shares or otherwise, with
         the goal of purchasing such shares at any time and/or from time
         to time, at a price reasonably acceptable to MBI.

         WAIVER AND AMENDMENT

                   Any term, condition or provision of the Merger
         Agreement may be waived in writing at any time by the party
         which is, or whose shareholders are, entitled to the benefits
         thereof.  The Merger Agreement and the schedules thereto may be
         amended by or on behalf of the Boards of Directors of MBI and
         Hawkeye at any time before or after approval of the Merger
         Agreement by the shareholders of Hawkeye, by an instrument in
         writing signed on behalf of each party; PROVIDED that after any
         such approval by the shareholders of Hawkeye no such
         modification may alter or change the amount or kind of
         consideration to be received by holders of Hawkeye Common Stock
         in the Merger.  See "CERTAIN FEDERAL INCOME TAX CONSEQUENCES OF
         THE MERGER."

         ACCOUNTING TREATMENT

                   It is intended that the Merger be accounted for under
         the pooling-of-interests method of accounting.  It is a
         condition to the obligations of MBI to effect the Merger that
         the Pooling Letter shall have been received by MBI and shall
         not have been withdrawn.  See "-- Conditions of the Merger."  
         MBI and Hawkeye have agreed to use their best efforts to cause
         the Merger to qualify for pooling-of-interest accounting
         treatment.


                                       -50-<PAGE>







                   Under the pooling-of-interests method of accounting,
         the historical basis of the assets and liabilities of MBI and
         Hawkeye will be combined at the Effective Time and carried
         forward at their previously recorded amounts, and the
         shareholders' equity accounts of MBI and Hawkeye will be
         combined on MBI's consolidated balance sheet and no goodwill or
         other intangible assets will be created.  Financial statements
         of MBI issued after the Effective Time will be restated
         retroactively to reflect the consolidated operations of MBI and
         Hawkeye as if the Merger had taken place prior to the periods
         covered by such financial statements.  See "SUMMARY INFORMATION
         -- Comparative Unaudited Per Share Data," "SUMMARY INFORMATION
         -- Summary Financial Data," "-- Conditions of the Merger," and
         "PRO FORMA FINANCIAL INFORMATION."

         MANAGEMENT AND OPERATIONS AFTER THE MERGER

                   Merger Sub, a wholly owned subsidiary of MBI, will be
         the surviving corporation resulting from the Merger.  Merger
         Sub will be governed by the laws of the state of Iowa and will
         operate in accordance with the articles of incorporation and
         bylaws of Merger Sub as in effect immediately prior to the
         Merger, until otherwise amended or repealed after the Effective
         Time.

         EMPLOYEE BENEFITS

                   EMPLOYEE BENEFITS.  The provisions of Hawkeye's stock
         option and incentive plans set forth in the Merger Agreement
         ("Hawkeye Stock Plans") and of any other plan, program or
         arrangement providing for the issuance or grant of any other
         interest in respect of the capital stock of Hawkeye or any
         Hawkeye subsidiary will be deleted and terminated as of the
         Effective Time, and Hawkeye will ensure that following the
         Effective Time no holder of Hawkeye employee stock options or
         any participant in any Hawkeye Stock Plan shall have any right
         thereunder to acquire any securities of Hawkeye or any Hawkeye
         subsidiary.

                   Except as set forth in the Merger Agreement, the
         Hawkeye Employee Plans (as defined and set forth in the Merger
         Agreement) will not be terminated by reason of the Merger but
         will continue thereafter as plans of the Surviving Corporation
         until such time as the employees of Hawkeye and Hawkeye's
         subsidiaries are integrated into MBI's employee benefit plans
         that are available to other employees of MBI and MBI's
         subsidiaries, subject to the terms and conditions specified in 
         such plans and to such changes therein as may be necessary to
         reflect the consummation of the Merger.  MBI will take such
         steps as are necessary or required to integrate the employees
         of Hawkeye and 

                                       -51-<PAGE>







         Hawkeye's subsidiaries in to MBI's employee benefit plans
         available to other employees of MBI and MBI's subsidiaries as
         soon as practicable after the Effective Time, with (i) full
         credit for prior service with Hawkeye or any Hawkeye subsidiary
         for purposes of vesting and eligibility for participation (but
         not benefit accruals under any defined benefit plan), and co-
         payments and deductibles, and (ii) waiver of all waiting
         periods and pre-existing condition exclusions or penalties.

                   EMPLOYEE STOCK OPTIONS AND STOCK APPRECIATION RIGHTS.
         At the Effective Time, all rights with respect to Hawkeye
         Common Stock pursuant to Hawkeye employee stock options that
         are outstanding at the Effective Time, whether or not then
         exercisable, will be converted into and become rights with
         respect to MBI Common Stock, and MBI will assume each Hawkeye
         employee stock option in accordance with the terms of the stock
         option plan under which it was issued and the stock option
         agreement by which it is evidenced.  From and after the
         Effective Time, (i) each Hawkeye employee stock option assumed
         by MBI will be exercisable solely for shares of MBI Common
         Stock, (ii) the number of shares of MBI Common Stock subject to
         each Hawkeye employee stock option will be equal to the number
         of shares of Hawkeye Common Stock subject to such Hawkeye
         employee stock option immediately prior to the Effective Time
         multiplied by the Exchange Ratio and (iii) the per share
         exercise price under each Hawkeye employee stock option will be
         adjusted by dividing the per share exercise price under such
         Hawkeye employee stock option by the Exchange Ratio and
         rounding down to the nearest cent; provided, however, that the
         terms of each Hawkeye employee stock option will, in accordance
         with its terms, be subject to further adjustment as appropriate
         to reflect any stock split, stock dividend, recapitalization or
         other similar transaction subsequent to the Effective Time.  It
         is intended that the foregoing assumption will be undertaken in
         a manner that will not constitute a "modification" as defined
         in the Internal Revenue Code, as to any Hawkeye employee stock
         option that is an "incentive stock option."  

                   At the Effective Time, all stock appreciation rights
         with respect to Hawkeye Common Stock that are outstanding at
         the Effective Time, whether or not then exercisable, will be
         converted into and become stock appreciation rights with
         respect to MBI Common Stock with the same terms
         and conditions as were applicable to such Hawkeye stock
         appreciation rights immediately prior to the Effective Time.

                   Certain executive officers, including certain executive
         officers who are directors, of Hawkeye currently hold Hawkeye 
         employee stock options and/or Hawkeye stock appreciation rights 
         which will be



                                       -52-<PAGE>







         converted into rights with respect to MBI Common Stock as
         described above.


                   INDEMNIFICATION.  In the Merger Agreement, MBI agreed
         that the Merger will not affect or diminish any of Hawkeye's
         duties and obligations of indemnification existing as of the
         Effective Time in favor of employees, agents, directors or
         officers of Hawkeye or its subsidiaries arising by virtue of
         their respective articles of incorporation or bylaws in the
         form in effect on August 4, 1995, or arising by operation of
         law or by virtue of any contract, resolution or other agreement
         or document existing on August 4, 1995, and such duties and
         obligations will continue in full force and effect for so long
         as they would (but for the Merger) otherwise survive.  


              CERTAIN FEDERAL INCOME TAX CONSEQUENCES OF THE MERGER

                   The following discussion summarizes the material
         federal income tax consequences of the Merger.  The discussion
         does not address all aspects of federal taxation that may be
         relevant to particular Hawkeye shareholders, and it may not be
         applicable to shareholders who are not citizens or residents of
         the United States, or who acquired their Hawkeye Common Stock
         pursuant to the exercise of employee stock options or otherwise
         as compensation.  The discussion does not address the effect of
         any applicable state, local or foreign tax laws or any federal
         tax laws other than those pertaining to the income tax.  EACH
         HAWKEYE SHAREHOLDER SHOULD CONSULT HIS OR HER OWN TAX ADVISOR
         AS TO THE PARTICULAR TAX CONSEQUENCES TO HIM OR HER OF THE
         MERGER.

                   This discussion is based on the Internal Revenue
         Code, regulations and rulings now in effect or proposed
         thereunder, current administrative rulings and practice, and
         judicial precedent, all of which are subject to change.  Any
         such change, which may or may not be retroactive, could alter
         the tax consequences to Hawkeye shareholders discussed herein.
         This discussion is also based on certain assumptions regarding
         the factual circumstances that will exist at the Effective
         Time, including certain representations to be made by Hawkeye
         and MBI.  This discussion assumes that Hawkeye shareholders
         hold their Hawkeye Common Stock as a capital asset within the
         meaning of Section 1221 of the Internal Revenue Code.
                   MBI has received an opinion from Wachtell, Lipton,
         Rosen & Katz, counsel to MBI, and Hawkeye has received an
         opinion from Baird, Holm, McEachen, Pedersen, Hamann &
         Strasheim, 



                                       -53-<PAGE>







         counsel to Hawkeye, that, assuming the Merger occurs in
         accordance with the Merger Agreement, and conditioned on the
         accuracy of certain representations made by MBI and Hawkeye,
         the material federal income tax consequences expected to result
         from the Merger, under currently applicable law, are as
         follows:

                   (i)  The Merger will constitute a "reorganization"
              for federal income tax purposes under Section 368(a) of
              the Internal Revenue Code.

                  (ii)  No gain or loss will be recognized by Hawkeye or
              MBI as a result of the Merger.

                 (iii)  Hawkeye shareholders will recognize no gain or
              loss as a result of the exchange of their Hawkeye Common
              Stock solely for shares of MBI Common Stock pursuant to
              the Merger, except with respect to cash received in lieu
              of fractional shares, if any, as discussed below.

                  (iv)  A holder of shares of Hawkeye Common Stock who
              receives cash in the Merger in lieu of a fractional share
              interest of MBI Common Stock will be treated as if the
              fractional shares were received in the exchange and then
              redeemed by MBI.  A holder of shares of Hawkeye Common
              Stock will be treated as if the shareholder sold his or
              her fractional share of MBI Common Stock for the amount of
              cash received and will therefore recognize gain (or loss)
              to the extent that the amount of cash received exceeds (or
              is less than) the tax basis of the fractional share.  Such
              gain or loss will be capital gain or loss if the shares of
              Hawkeye Common Stock were held as capital assets and will
              be long-term capital gain or loss if the holding period of
              the shares of Hawkeye Common Stock so exchanged was more
              than one year.

                   (v)  The aggregate adjusted tax basis of the MBI
              Common Stock received by a shareholder of Hawkeye in the
              Merger, including for the purpose of (iv) above the tax
              basis of any fractional share interest, will be equal to
              the aggregate adjusted tax basis of the respective shares
              of Hawkeye Common Stock surrendered.

                  (vi)  The holding period of the shares of MBI Common
              Stock received by a shareholder of Hawkeye in the Merger,
              including for purposes of (iv) above the holding period of
              any fractional share interest, will include the holding 
              period of the respective shares of Hawkeye Common Stock
              exchanged therefor, provided the shares of Hawkeye Common
              Stock were held as capital assets.


                                       -54-<PAGE>







                 (vii)  A Hawkeye shareholder who receives only cash as
              a result of the exercise of dissenters' rights, will
              realize gain or loss for federal income tax purposes
              (determined separately as to each block of Hawkeye Common
              Stock exchanged) in an amount equal to the difference
              between (x) the amount of cash received by such
              shareholder, and (y) such shareholder's tax basis for the
              shares of Hawkeye Common Stock surrendered in exchange
              therefor, provided that the cash payment does not have the
              effect of the distribution of a dividend.  Any such gain
              or loss will be recognized for federal income tax purposes
              and will be treated as capital gain or loss, provided the
              shares of Hawkeye Common Stock were held as capital
              assets.  However, if the cash payment does have the effect
              of the distribution of a dividend, the amount of taxable
              income recognized generally will equal the amount of cash
              received; such income generally will be taxable as a
              dividend; and no loss (or other recovery of such
              shareholder's tax basis for the shares of Hawkeye Common
              Stock surrendered in the exchange) generally will be
              recognized by such shareholder.  The determination of
              whether a cash payment has the effect of the distribution
              of a dividend will be made pursuant to the provisions and
              limitations of Section 302 of the Internal Revenue Code,
              taking into account the constructive stock ownership rules
              of Section 318 of the Internal Revenue Code.

         An opinion of counsel, unlike a private letter ruling from the
         Internal Revenue Service (the "Service"), has no binding effect
         on the Service.  The Service could take a position contrary to
         counsel's opinion and, if the matter is litigated, a court may
         reach a decision contrary to the opinion.  The Service is not
         expected to issue a ruling on the tax effects of the Merger,
         and no such ruling has been requested.

                   THE FOREGOING IS A GENERAL DISCUSSION OF THE MATERIAL
         FEDERAL INCOME TAX CONSEQUENCES OF THE MERGER AND IS INCLUDED
         FOR GENERAL INFORMATION ONLY.  THE FOREGOING DISCUSSION DOES
         NOT TAKE INTO ACCOUNT THE PARTICULAR FACTS AND CIRCUMSTANCES OF
         EACH SHAREHOLDER'S TAX STATUS AND ATTRIBUTES.  AS A RESULT, THE
         FEDERAL INCOME TAX CONSEQUENCES ADDRESSED IN THE FOREGOING
         DISCUSSION MAY NOT APPLY TO EACH SHAREHOLDER.  IN VIEW OF THE
         INDIVIDUAL NATURE OF INCOME TAX CONSEQUENCES, EACH SHAREHOLDER
         IS URGED TO CONSULT HIS OR HER OWN TAX ADVISOR TO DETERMINE THE
         SPECIFIC TAX CONSEQUENCES OF THE MERGER TO SUCH SHAREHOLDER,
         INCLUDING THE APPLICATION AND EFFECT OF FEDERAL, STATE, LOCAL 
         AND OTHER TAX LAWS AND THE POSSIBLE EFFECTS OF CHANGES IN
         FEDERAL AND OTHER TAX LAWS.


                                       -55-<PAGE>







                  DISSENTERS' RIGHTS OF SHAREHOLDERS OF HAWKEYE

                   Each shareholder of Hawkeye has the right to demand
         to be paid the fair value of his or her shares of Hawkeye
         Common Stock in cash upon consummation of the Merger if the
         shareholder follows the dissenters' rights procedures set forth
         in Division XIII of the Iowa Act.  "Fair value" is defined in
         the Iowa Act as the value of the subject shares immediately
         prior to the consummation of the Merger,  excluding any
         appreciation or depreciation in anticipation of the Merger
         unless such an exclusion would be inequitable.

                   Under the Iowa Act, a shareholder of Hawkeye may
         dissent from the Merger and obtain the fair value of the shares
         owned by such shareholder with such fair value to be paid in
         cash if the Merger is consummated.  Any shareholder of Hawkeye
         who wishes to assert his or her dissenters' rights must do each
         of the following:  (i) deliver to Hawkeye before the vote on
         the Merger Agreement is taken a written notice of such
         shareholder's intent to demand payment of the fair value of his
         or her shares if the Merger is effectuated, and (ii) not vote
         such shares in favor of the approval of the Merger Agreement at
         the Special Meeting.  A VOTE AGAINST THE APPROVAL OF THE MERGER
         AGREEMENT WILL NOT, BY ITSELF, BE REGARDED AS A WRITTEN NOTICE
         OF A SHAREHOLDER'S INTENT TO ASSERT DISSENTERS' RIGHTS.

                   If the Merger Agreement is approved at the Special
         Meeting, Hawkeye shall deliver a written notice to each person
         who asserted dissenters' rights and who did not vote in favor
         of the approval of the Merger Agreement as described above.
         The notice must be sent by Hawkeye no later than 10 days after
         the Special Meeting and must contain the following information:
         (i) a statement as to where a demand for payment must be sent
         by the dissenting shareholder and where and when the
         certificates evidencing shares of Hawkeye Common Stock owned by
         such shareholders must be deposited, (ii) a statement to
         holders of uncertificated shares stating to what extent
         transfer of the shares will be restricted after the payment is
         received, (iii) a form with which dissenting shareholders may
         make their demands for payment, which form will include the
         date of the first public announcement of the proposed Merger
         and a requirement that all dissenting shareholders certify as
         to whether or not he or she had acquired beneficial ownership
         of the shares subject to the dissenters' rights demand prior to
         the date of the first public announcement of the proposed 
         Merger, (iv) a statement as to the date by which Hawkeye must
         receive the demand for payment from the dissenting shareholder,
         such date to be not fewer than 30 nor more than 60 days after
         the date of Hawkeye's notice to dissenting shareholders, and
         (v) a copy of Division XIII of the Iowa Act.



                                       -56-<PAGE>







                   A dissenting shareholder must demand payment for his
         or her shares, certify as to whether the acquisition dates of
         such shares were prior to or after the public announcement of
         the proposed Merger and deposit the certificates evidencing
         such shares prior to the date set in and in accordance with the
         notice sent by Hawkeye to the dissenting shareholders.  A
         shareholder who does not demand payment or deposit certificates
         for shares by the date or in the manner set forth in the notice
         to dissenting shareholders sent by Hawkeye will be deemed to
         have waived his or her dissenters' rights and will not be
         entitled to payment of the fair value of his or her shares
         under Division XIII of the Iowa Act.

                   Hawkeye (or Merger Sub, as the Surviving Corporation
         in the Merger) must make a cash payment to each dissenting
         shareholder who files a demand for payment as described above
         equal to Hawkeye's (or Merger Sub's) estimate of the fair value
         of the shares of Hawkeye Common Stock owned by such
         shareholders, plus accrued interest on such payment from the
         Closing Date.  Such payment must be made upon the later of:
         (i) the time the Merger is consummated or (ii) the receipt of
         the demand for payment from the dissenting shareholder.  If the
         Merger is not consummated within 60 days of the date set by
         Hawkeye for receipt of the dissenting shareholders' demands for
         payment and deposits of stock certificates, Hawkeye must return
         the deposited certificates and release the transfer
         restrictions on uncertificated shares and send a new notice to
         dissenting shareholders when the Merger is actually consummated
         and repeat the payment demand procedure.  The payment must be
         accompanied by the following:  (i) Hawkeye's balance sheet as
         of the end of its most recently completed fiscal year, an
         income statement and a statement of changes in shareholders'
         equity as of the most recently completed fiscal year and
         interim financial statements of Hawkeye as of and for the most
         recent date or period available, (ii) a statement of Hawkeye's
         (or Merger Sub's) estimate of the fair value of the Hawkeye
         shares, (iii) an explanation as to how the interest payment was
         calculated, (iv) a statement of the dissenting shareholder's
         right to demand a greater payment than Hawkeye's estimate as
         described below, and (v) a copy of Division XIII of the Iowa
         Act.

                   Hawkeye may elect to withhold payment from those
         dissenting shareholders who do not certify in their demand for
         payment that they owned the shares subject to the dissenters' 
         rights demand prior to the public announcement of the proposed
         Merger.  To the extent that Hawkeye elects to withhold payment
         from such dissenting shareholders, Hawkeye shall estimate the

                                       -57-<PAGE>







         fair value of the shares owned by such holders and accrued
         interest thereon and offer to pay the same to each such
         dissenting shareholder who agrees to accept it in full
         satisfaction of his or her demand.  The offer to such
         shareholders must be accompanied by:  (i) a statement of
         Hawkeye's estimate of fair value, (ii) an explanation as to how
         the interest payment was calculated and (iii) a statement of
         the dissenting shareholder's right to demand a greater payment
         than Hawkeye's estimate as described below.

                   After receipt of Hawkeye's (or Merger Sub's) estimate
         of fair value in either of the above cases, the dissenting
         shareholder may deliver notice to Hawkeye (or Merger Sub) of
         his or her own estimate of fair value for the shares and the
         amount of interest due and demand payment of the difference in
         amount, if any, previously paid by Hawkeye (or Merger Sub) to
         such shareholder and the amount of the shareholder's estimate.
         In order to make such a demand:  (i) the dissenting shareholder
         must believe that the amount paid or offered by Hawkeye (or
         Merger Sub) is less than the fair value of the shares or the
         interest is incorrectly calculated, or (ii) Hawkeye (or Merger
         Sub) has not made payment for the shares within 60 days after
         the date set by Hawkeye (or Merger Sub) as the last day that
         Hawkeye (or Merger Sub) set for accepting demands for payment,
         or (iii) the Merger has not been consummated within the 60-day
         period after the last date that Hawkeye (or Merger Sub) set for
         accepting demands for payment and Hawkeye has not returned the
         stock certificates deposited by the dissenting shareholder or
         released the transfer restrictions imposed on uncertificated
         shares.  A dissenting shareholder will waive his or her right
         to seek a greater payment than Hawkeye's estimate of fair value
         and accrued interest unless such shareholder notifies Hawkeye
         (or Merger Sub) in writing of the same within 30 days of the
         receipt of Hawkeye's (or Merger Sub's) payment or offer of
         payment for the shares.

                   If, within 60 days of receiving the dissenting
         shareholder's notice of a demand for increased payment, the
         demand remains unsettled, Hawkeye (or Merger Sub) must commence
         proceedings in the district court of the county where its
         principal office is located, petitioning the court to determine
         the fair value and accrued interest of such shares.  If Hawkeye
         (or Merger Sub) fails to start such proceedings within the 60-
         day period, Hawkeye (or Merger Sub) must pay each dissenting
         shareholder whose demand remains unsettled the amount that such
         shareholder has demanded.  All dissenting shareholders with 
         claims remaining unsettled will be made parties to the
         proceedings and the court may appoint one or more appraisers to
         receive evidence and recommend the fair value of the shares.
         The



                                       -58-<PAGE>







         court will find either (i) that the fair value and accrued
         interest already paid by Hawkeye (or Merger Sub) equals or
         exceeds the amount determined by the court, in which case the
         shareholder will be entitled to no additional payment from
         Hawkeye (or Merger Sub), or (ii) Hawkeye (or Merger Sub) must
         pay an additional amount equal to the difference between the
         court's determination of fair value and accrued interest and
         the amount already paid by Hawkeye (or Merger Sub) to the
         shareholder. 

                   The court shall also determine all costs of the
         proceedings, including the reasonable compensation and expenses
         of the appraisers and shall assess such costs against Hawkeye
         (or Merger Sub) unless the court finds that such an assessment
         would be inequitable because the dissenting shareholders had
         acted arbitrarily, vexatiously or not in good faith, in which
         case the court may assess costs against all or some of the
         dissenters.  Fees and expenses of legal counsel and experts
         will generally be borne by each of the parties except that the
         experts' and attorneys' fees and expenses of the dissenting
         shareholders will be assessed against Hawkeye (or Merger Sub)
         to the extent that the court finds Hawkeye did not
         substantially comply with the procedures set forth in Division
         XIII of the Iowa Act or to either party in favor of the other
         party to the extent that the court finds that the assessed
         party acted arbitrarily, vexatiously or not in good faith.  To
         the extent that counsel for one dissenting shareholder is found
         by the court to have provided a substantial benefit to other
         dissenting shareholders, the court may order that the fees of
         such counsel be paid out of the amounts awarded to the
         dissenting shareholders who have been benefited.

                   THE PRECEDING DISCUSSION IS A SUMMARY OF THE
         PROVISIONS REGARDING DISSENTERS' RIGHTS UNDER THE IOWA ACT AND
         IS QUALIFIED IN ITS ENTIRETY BY THE TEXT OF DIVISION XIII OF
         THE IOWA ACT WHICH IS ATTACHED AS ANNEX A TO THIS PROXY
         STATEMENT/PROSPECTUS.  HAWKEYE SHAREHOLDERS WHO ARE INTERESTED
         IN ASSERTING DISSENTERS' RIGHTS PURSUANT TO THE IOWA ACT IN
         CONNECTION WITH THE MERGER MAY WISH TO CONSULT WITH THEIR
         COUNSEL FOR ADVICE AS TO THE PROCEDURES REQUIRED TO BE
         FOLLOWED.


                         PRO FORMA FINANCIAL INFORMATION

         COMPARATIVE UNAUDITED PER SHARE DATA

                   The following table sets forth for the periods
         indicated selected historical per share data of MBI and Hawkeye
         and the corresponding pro forma and pro forma equivalent per
         share 


                                       -59-<PAGE>







         amounts giving effect to the proposed Merger, the proposed
         acquisitions of Sterling, Security Bank and Metro and the
         acquisition of ABNK by merger with and into a wholly owned
         subsidiary of MBI, which was completed on April 30, 1992 (ABNK
         is the surviving entity from that merger).  The data presented
         is based upon the supplemental consolidated financial
         statements and related notes of MBI and the consolidated
         financial statements and related notes of Hawkeye, Sterling,
         Security Bank and Metro included in this Proxy Statement/
         Prospectus or in documents incorporated herein by reference,
         and the pro forma combined consolidated balance sheet and
         income statements, including the notes thereto, appearing
         elsewhere herein.  This information should be read in
         conjunction with such historical and pro forma financial
         statements and related notes thereto.  The assumptions used in
         the preparation of this table appear in the notes to the pro
         forma financial information appearing elsewhere in the Proxy
         Statement/Prospectus.  See "-- Pro Forma Combined Consolidated
         Financial Statements (Unaudited)."  This data is not
         necessarily indicative of the results of the future operations
         of the combined organization or the actual results that would
         have occurred if the Merger, the completed merger of ABNK, or
         the proposed mergers of Sterling, Security Bank and Metro had
         been consummated prior to the periods indicated.






















                                       -60-<PAGE>







     <TABLE>
     <CAPTION>                                     
                                                                    MBI/HAWKEYE
                                                  MBI     HAWKEYE    Pro Forma
                                               Reported  Reported   Combined(1)
                                               --------  --------   -----------

     <S>                                       <C>        <C>        <C>         
     Book Value per Common Share:
       September 30, 1995..................... $ 25.43    $14.32     $25.09     
       December 31, 1994......................   23.47     13.06      23.03     
     Cash Dividends Declared Per Common Share:
       Nine months ended September 30, 1995... $   .99    $  .47     $  .99     
       Year ended December 31, 1994 ..........    1.12       .50       1.12     
       Year ended December 31, 1993 ..........     .99       .42        .99     
       Year ended December 31, 1992 ..........     .93       .33        .93     
     Earnings per Common Share Before Change
       in Accounting Principle:
       Nine months ended September 30, 1995...  $ 2.95    $ 1.28     $ 2.89     
       Year ended December 31, 1994 ..........    3.22      1.78       3.21     
       Year ended December 31, 1993 ..........    2.79      1.64       2.80     
       Year ended December 31, 1992 ..........    2.42      1.38       2.42     
     Market Price per Common Share:
       August 3, 1995(4)......................  $43.88    $22.75         --     
       ________, 1995(4)......................      --        --         --     



























                                       -61-<PAGE>







       MBI/HAWKEYE   MBI/All Entities  MBI/All Entities
        Pro Forma        Pro Forma         Pro Forma
      Equivalent(2)     Combined(3)      Equivalent(2)
      -------------     -----------      -------------
         <C>              <C>               <C>
         $14.68           $25.16            $14.72
          13.47            23.09             13.51

         $  .58           $  .99            $  .58
            .66             1.12               .66
            .58              .99               .58
            .54              .93               .54


         $ 1.69           $ 2.88            $ 1.68
           1.88             3.22              1.88
           1.64             2.80              1.64
           1.42             2.44              1.43

             --               --                --
             --               --                --
     <FN>
     ------------------

     (1)  Includes the effect of pro forma adjustments for ABNK and
          Hawkeye as appropriate.  See "PRO FORMA FINANCIAL
          INFORMATION."
     (2)  Based upon the pro forma combined per share amounts multiplied
          by .585, the Exchange Ratio applicable to one share of Hawkeye
          Common Stock.  See "PRO FORMA FINANCIAL INFORMATION."
     (3)  Includes the effect of pro forma adjustments for ABNK,
          Hawkeye, Security Bank, Sterling and Metro as appropriate.
          See "PRO FORMA FINANCIAL INFORMATION."
     (4)  The market values of MBI Common Stock and Hawkeye Common Stock
          were determined as of the last trading day preceding the
          public announcement of the Merger and as of the most recent
          practicable date prior to the mailing of this Proxy Statement/
          Prospectus based on the last sales price as reported on the
          NYSE and NASDAQ/NM, respectively.
     </FN>
     /TABLE
<PAGE>







         PRO FORMA COMBINED CONSOLIDATED FINANCIAL STATEMENTS
         (UNAUDITED)

                   The following unaudited pro forma combined
         consolidated balance sheet gives effect to the Merger and the
         proposed acquisitions of Sterling, Security Bank and Metro as
         if each of the mergers were consummated on December 31, 1994.

                   MBI acquired ABNK on April 30, 1992, which
         acquisition was accounted for under the purchase method of
         accounting.  Accordingly, the historical results of operations
         of MBI include the results of operations of ABNK from May 1,
         1992 forward.  The following pro forma combined consolidated
         income statements include the results of operations of ABNK
         from January 1, 1992 through the date of acquisition.

                   The following pro forma combined consolidated income
         statements for the nine months ended September 30, 1995 and
         1994 and for the years ended December 31, 1994, 1993, and 1992
         set forth the results of operations of MBI combined with the
         results of operations of Hawkeye, Sterling, Security Bank and
         Metro as if the Merger, and the proposed acquisitions of
         Sterling, Security Bank and Metro had occurred as of the first
         day of the period presented.  As stated above, the pro forma
         combined consolidated income statements for the year ended
         December 31, 1992 include the results of operations of ABNK
         from January 1, 1992 through the date of acquisition.

                   The unaudited pro forma combined consolidated
         financial statements should be read in conjunction with the
         accompanying Notes to Pro Forma Combined Consolidated Financial
         Statements and with the historical financial statements of MBI,
         Hawkeye, Sterling, Security Bank, Metro and ABNK.  The
         historical interim financial information for the nine months
         ended September 30, 1995 and 1994, used as a basis for the pro
         forma combined consolidated financial statements, include all
         necessary adjustments, which, in management's opinion, are
         necessary to present the data fairly.  These pro forma combined
         consolidated financial statements may not be indicative of the
         results of operations that actually would have occurred if the
         completed and proposed mergers had been consummated on the
         dates assumed above or the results of operations that may be
         achieved in the future.






                                       -62-<PAGE>







     <TABLE>
     <CAPTION>
     MERCANTILE BANCORPORATION INC.
     PRO FORMA COMBINED CONSOLIDATED BALANCE SHEET
     September 30, 1995
     (Thousands)
     (Unaudited)                                                                               MBI, Hawkeye
                                                                                 Pro Forma
                                                                  Hawkeye        Combined   
                                              MBI(1)    Hawkeye  Adjustments(2) Consolidated
                                              ---       -------  -----------    ------------
     <S>                                    <C>         <C>       <C>               <C>  
     ASSETS:
      Cash and due from banks...........    $822,849    $96,917    ($33,961)(3)     $885,805



     Due from banks - interest bearing.       97,473        200                       97,673         
     Federal funds sold and repurchase
      agreements........................     179,778    102,004                      281,782         
     Investments in debt and equity
      securities:
       Trading..........................       4,696          0                        4,696         
       Available-for-sale...............     768,422    287,270                    1,055,692         
       Held-to-Maturity.................   3,074,207    127,896                    3,202,103         
                                           ---------    -------    -----------     ---------     
            Total.......................   3,847,325    415,166              0     4,262,491         
     Loans and Leases...................  10,648,008  1,298,589                   11,946,597         
     Reserve for possible loan losses...    (187,872)   (21,553)                    (209,425)        
                                          ----------  ---------    -----------    ----------
      Net Loans and Leases..............  10,460,136  1,277,036              0    11,737,172         
     Other assets.......................     611,092    101,242                      712,334         

                                                                       192,819(8)
                                                                      (192,819)(9)



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

       Total Assets..................... $16,018,653 $1,992,565       ($33,961)  $17,977,257
                                         =========== ==========    ===========   ===========
















                                               -63-<PAGE>







                                                     Sterling        All Entities
                                                   Security Bank       Pro Forma
                                                       Metro           Combined
              Sterling   Security Bank    Metro     Adjustments(2)   Consolidated
              --------   -------------    -----    ------------      ------------
                <C>            <C>         <C>          <C>              <C>     
                $7,167         $15,043     $200         ($2,373)(3)      $903,522
                                                         (1,420)(3)
                                                           (900)(3)

                                    99    1,366                            99,138

                   827             125        0                           282,734


                     0               0        0                             4,696
                46,239             577    7,084                         1,109,592
                26,675           4,353   19,247                         3,252,378
              --------        --------  -------         -------        ----------
                72,914           4,930   26,331               0         4,366,666
                85,681          75,792   54,674                        12,162,744
                (1,380)           (287)    (510)                         (211,602)
              --------        --------  -------         -------        ----------
                84,301          75,505   54,164               0        11,951,142
                 4,793           4,620    1,288          18,259(6)        723,035
                                                        (18,259)(7)
                                                          8,598(4)
                                                         (8,598)(5)
                                                          5,911(10)
                                                         (5,911)(11)

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

              $170,002        $100,322  $83,349         ($4,693)      $18,326,237
              ========        ========  =======         =======       ===========


     See notes to pro forma combined consolidated financial statements.
     /TABLE
<PAGE>







     <TABLE>
     <CAPTION>
     MERCANTILE BANCORPORATION INC.
     PRO FORMA COMBINED CONSOLIDATED BALANCE SHEET
     September 30, 1995
     (Thousands)
     (Unaudited)
                                                                               MBI, Hawkeye
                                                                                 Pro Forma
                                                                  Hawkeye        Combined    
                                               MBI(1)   Hawkeye  Adjustments(2) Consolidated
                                               ---      -------  -----------    ------------
     <S>                                  <C>         <C>         <C>             <C>
     LIABILITIES:
      Deposits:
       Non-interest bearing.............  $1,798,605   $204,619                   $2,003,224
       Interest bearing.................   9,875,943  1,512,456                   11,388,399
       Foreign..........................     160,736          0                      160,736
                                          ----------  ---------    ---------      ----------
           Total Deposits...............  11,835,284  1,717,075            0      13,552,359
      Federal funds purchased and
       repurchase agreements............   1,611,392     15,003                    1,626,395
      Other borrowings..................     949,186     46,241                      995,427
      Other liabilities.................     203,624     21,427                      225,051
                                          ----------  ---------    ---------      ----------

       Total Liabilities................  14,599,486  1,799,746            0      16,399,232

     SHAREHOLDERS' EQUITY:
      Preferred stock...................      12,153                                  12,153

      Common stock......................     279,658        135                      319,033

                                                                      39,375(8)
                                                                        (135)(9)



     Capital surplus....................     216,757    105,129                      282,646

                                                                      65,889(8)
                                                                    (105,129)(9)



     Retained earnings..................     936,311     87,555                    1,023,866

                                                                      87,555(8)

                                                                     (87,555)(9)



                                               -64-<PAGE>







     Treasury stock.....................     (25,712)                (33,961)(3)     (59,673)


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

          Total Shareholders' Equity....   1,419,167    192,819      (33,961)      1,578,025
                                         ----------- ----------    ---------     -----------
          Total Liabilities and
            Shareholders' Equity........ $16,018,653 $1,992,565     ($33,961)    $17,977,257
                                         =========== ==========    =========     ===========<PAGE>







                                                     Sterling        All Entities
                                                   Security Bank       Pro Forma
                                                       Metro           Combined
              Sterling   Security Bank    Metro     Adjustments(2)   Consolidated
              --------   -------------    -----    ------------      ------------
               <C>              <C>      <C>             <C>           <C>       

               $20,613          $1,191   $2,728              $0        $2,027,756
               111,900          86,725   73,984                        11,661,008
                     0               0        0                           160,736
               -------          ------   ------          ------        ----------
               132,513          87,916   76,712               0        13,849,500

                17,917               0        0                         1,644,312
                     0           3,248      400                           999,075
                 1,303             560      326                           227,240
               -------          ------   ------          ------        ----------

               151,733          91,724   77,436               0        16,720,127


                                                                           12,153

                 3,685           1,032      192           2,607(6)        324,247
                                                         (3,685)(7)
                                                          1,610(4)
                                                         (1,032)(5)
                                                            997(10)
                                                           (192)(11)

                   799               4    1,409           1,877(6)        284,553
                                                           (799)(7)
                                                           (574)(4)
                                                             (4)(5)
                                                            604(10)
                                                         (1,409)(11)

                13,785           7,562    4,310          13,785(6)      1,049,523
                                                        (13,785)(7)
                                                          7,562(4)
                                                         (7,562)(5)
                                                          4,310(10)
                                                         (4,310)(11)<PAGE>







                                                         (2,373)(3)       (64,366)
                                                         (1,420)(3)
                                                           (900)(3)                 
              --------        --------  -------         -------       -----------

                18,269           8,598    5,911          (4,693)        1,606,110
              --------        --------  -------         -------       -----------

              $170,002        $100,322  $83,349         ($4,693)      $18,326,237
              ========        ========  =======         =======       ===========


     See notes to pro forma combined consolidated financial statements.
     /TABLE
<PAGE>







     <TABLE>
     <CAPTION>
     MERCANTILE BANCORPORATION INC.
     PRO FORMA COMBINED CONSOLIDATED INCOME STATEMENT
     For the Nine Months Ended September 30, 1995
     (Thousands except per share data)
     (Unaudited)

                                                                       MBI, Hawkeye
                                                                        Pro Forma
                                                                        Combined
                                                   MBI(1)    Hawkeye   Consolidated
                                                   ---       -------   ------------
     <S>                                         <C>        <C>            <C>   
     Interest Income.........................    $854,404   $105,900       $960,304
     Interest Expense........................     410,097     49,337        459,434
                                                 --------   --------       --------

       Net Interest Income...................     444,307     56,563        500,870
     Provision for Possible Loan Losses......      28,928        249         29,177
                                                 --------    -------       --------

       Net Interest Income after Provision
        for Possible Loan Losses.............     415,379     56,314        471,693
     Other Income:
       Trust.................................      48,252      3,888         52,140
       Service charges.......................      50,062      6,267         56,329
       Credit card fees......................      14,169      1,451         15,620
       Securities gains (losses).............       3,672        104          3,776
       Other.................................      65,325      8,485         73,810
                                                 --------    -------       --------

         Total Other Income..................     181,480     20,195        201,675
       Other Expense:
         Salaries and employee benefits......     195,825     23,528        219,353
         Net occupancy and equipment.........      53,547      6,825         60,372
         Other...............................     107,572     19,825        127,397
                                                 --------    -------       --------

           Total Other Expense...............     356,944     50,178        407,122
                                                 --------    -------       --------

           Income Before Income Taxes........     239,915     26,331        266,246
     Income Taxes ...........................      81,156      9,004         90,160
                                                 --------    -------       --------

           Net Income Before
             Change in Accounting
             Principle.......................    $158,759    $17,327       $176,086
                                                 ========    =======       ========



                                               -65-<PAGE>







     Per Share Data:
         Average Common Shares Outstanding...  53,629,980                60,717,393
         Net Income Before Change
           in Accounting Principle...........       $2.95                     $2.89<PAGE>








                                                   All Entities
                                                     Pro Forma
                                                     Combined
              Sterling   Security Bank    Metro    Consolidated(12)
              --------   -------------    -----    ------------
                <C>             <C>      <C>           <C> 
                $9,069          $5,704   $4,745        $979,822
                 4,247           3,291    2,614         469,586
                ------          ------   ------        --------

                 4,822           2,413    2,131         510,236
                   162              45       30          29,414
                ------           -----    -----        --------


                 4,660           2,368    2,101         480,822

                   129               0        0          52,269
                   242             138        0          56,709
                     0               0        0          15,620
                    (1)              0     (508)          3,267
                   286             169      214          74,479
                ------            ----     ----        --------

                   656             307     (294)        202,344

                 1,735             682      766         222,536
                   475             243      137          61,227
                 1,411             520      627         129,955
                ------            ----     ----        --------

                 3,621           1,445    1,530         413,718
                ------           -----    -----        --------

                 1,695           1,230      277         269,448
                   386             382      293          91,221
                ------           -----     ----        --------<PAGE>







                $1,309            $848     ($16)       $178,227
                ======            ====     ====        ========


                                                     61,656,363

                                                          $2.88


     See notes to pro forma combined consolidated financial statements.
     /TABLE
<PAGE>







     <TABLE>
     <CAPTION>
     MERCANTILE BANCORPORATION INC.
     PRO FORMA COMBINED CONSOLIDATED INCOME STATEMENT
     For the Nine Months Ended September 30, 1994
     (Thousands except per share data)
     (Unaudited)

                                                                       MBI, Hawkeye
                                                                        Pro Forma
                                                                        Combined
                                                   MBI(1)    Hawkeye   Consolidated
                                                   ---       -------   ------------
     <S>                                         <C>         <C>           <C>  
     Interest Income.........................    $730,270    $90,495       $820,765
     Interest Expense........................     284,939     37,414       $322,353
                                                 --------    -------       --------

       Net Interest Income...................     445,331     53,081        498,412
     Provision for Possible Loan Losses......      26,374         48         26,422
                                                 --------    -------       --------

       Net Interest Income after Provision
        for Possible Loan Losses ............     418,957     53,033        471,990
     Other Income:
       Trust.................................      46,560      3,804         50,364
       Service charges.......................      52,089      5,918         58,007
       Credit card fees......................      18,087      1,272         19,359
       Securities gains .....................       1,718        396          2,114
       Other.................................      40,971      8,702         49,673
                                                 --------    -------       --------

         Total Other Income..................     159,425     20,092        179,517
       Other Expense:
         Salaries and employee benefits......     190,801     22,878        213,679
         Net occupancy and equipment.........      51,837      6,032         57,869
         Other...............................     117,502     18,349        135,851
                                                 --------    -------       --------

           Total Other Expense...............     360,140     47,259        407,399
                                                 --------    -------       --------

           Income Before Income Taxes........     218,242     25,866        244,108
     Income Taxes............................      78,033      8,420         86,453
                                                 --------    -------       --------

           Net Income Before
             Change in Accounting
             Principle.......................    $140,209    $17,446       $157,655
                                                 ========    =======       ========



                                               -66-<PAGE>







     Per Share Data:
         Average Common Shares Outstanding...  51,900,015                58,987,428
         Net Income Before 
           Change in Accounting
           Principle.........................       $2.68                     $2.64<PAGE>








                                                   All Entities
                                                     Pro Forma
                                                     Combined
              Sterling   Security Bank    Metro    Consolidated
              --------   -------------    -----    ------------
                <C>             <C>      <C>           <C>
                $8,289          $4,765   $4,149        $837,968
                 3,257           2,564    2,188         330,362
                ------          ------   ------        --------

                 5,032           2,201    1,961         507,606
                    66              45      (17)         26,516
                ------           -----    -----        --------


                 4,966           2,156    1,978         481,090

                   124               0        0          50,488
                   289              89        0          58,385
                     0               0        0          19,359
                   (44)              0        0           2,070
                   300             301      240          50,514
                ------            ----     ----        --------

                   669             390      240         180,816

                 1,766             585      756         216,786
                   491             191      133          58,684
                 1,650             689      524         138,714
                ------            ----     ----        --------

                 3,907           1,465    1,413         414,184
                ------           -----    -----        --------

                 1,728           1,081      805         247,722
                   441             397      295          87,586
                ------           -----     ----        --------<PAGE>







                $1,287            $684     $510        $160,136
                ======            ====     ====        ========


                                                     59,926,398


                                                          $2.64


     See notes to pro forma combined consolidated financial statements.
     /TABLE
<PAGE>







     <TABLE>
     <CAPTION>
     MERCANTILE BANCORPORATION INC.
     PRO FORMA COMBINED CONSOLIDATED INCOME STATEMENT
     For the Year Ended December 31, 1994
     (Thousands except per share data)
     (Unaudited)

                                                                       MBI, Hawkeye
                                                                        Pro Forma
                                                                        Combined
                                                   MBI(1)    Hawkeye   Consolidated
                                                   ---       -------   ------------
     <S>                                         <C>        <C>          <C>     
     Interest Income.........................    $994,896   $123,173     $1,118,069
     Interest Expense........................     399,349     51,601        450,950
                                                 --------   --------     ----------

       Net Interest Income...................     595,547     71,572        667,119
     Provision for Possible Loan Losses......      43,201         64         43,265
                                                 --------    -------       --------

       Net Interest Income after Provision
        for Possible Loan Losses.............     552,346     71,508        623,854
     Other Income:
       Trust.................................      60,769      5,119         65,888
       Service charges.......................      68,783      8,024         76,807
       Credit card fees......................      24,895      1,693         26,588
       Securities gains......................       2,177        402          2,579
       Other.................................      53,134     11,565         64,699
                                                 --------    -------       --------

         Total Other Income..................     209,758     26,803        236,561
       Other Expense:
         Salaries and employee benefits......     258,546     30,229        288,775
         Net occupancy and equipment.........      69,784      8,101         77,885
         Other...............................     163,740     24,776        188,516
                                                 --------    -------       --------

           Total Other Expense...............     492,070     63,106        555,176
                                                 --------    -------       --------

           Income Before Income Taxes........     270,034     35,205        305,239
     Income Taxes............................     101,705     11,460        113,165
                                                 --------    -------       --------
           Net Income Before
            Change in Accounting
            Principle........................    $168,329    $23,745       $192,074
                                                 ========    =======       ========




                                               -67-<PAGE>







     Per Share Data:
         Average Common Shares Outstanding...  51,957,002                59,044,415
         Net Income Before Change
          in Accounting Principle............       $3.22                     $3.21<PAGE>








                                                   All Entities
                                                     Pro Forma
                                                     Combined
              Sterling   Security Bank    Metro    Consolidated
              --------   -------------    -----    ------------
               <C>              <C>      <C>         <C>
               $11,236          $6,257   $5,680      $1,141,242
                 4,471           3,487    3,046         461,954
               -------          ------   ------      ----------

                 6,765           2,770    2,634         679,288
                    66              60       10          43,401
                ------           -----    -----        --------


                 6,699           2,710    2,624         635,887

                   168               0        0          66,056
                   386             195        0          77,388
                     0               0        0          26,588
                   (43)              0        0           2,536
                   368             211      471          65,749
                ------            ----     ----        --------

                   879             406      471         238,317

                 2,380             727      953         292,835
                   583             236      157          78,861
                 2,170             750      728         192,164
                ------            ----     ----        --------

                 5,133           1,713    1,838         563,860
                ------           -----    -----        --------

                 2,445           1,403    1,257         310,344
                   591             551      474         114,781
                ------           -----    -----        --------<PAGE>







                $1,854            $852     $783        $195,563
                ======            ====     ====        ========


                                                     59,983,385

                                                          $3.22


     See notes to pro forma combined consolidated financial statements.
     /TABLE
<PAGE>







     <TABLE>
     <CAPTION>
     MERCANTILE BANCORPORATION INC.
     PRO FORMA COMBINED CONSOLIDATED INCOME STATEMENT
     For the Year Ended December 31, 1993
     (Thousands except per share data)
     (Unaudited)

                                                                       MBI, Hawkeye
                                                                        Pro Forma
                                                                        Combined
                                                   MBI(1)    Hawkeye   Consolidated
                                                   ---       -------   ------------
     <S>                                         <C>       <C>           <C>    
     Interest Income.........................    $971,482   $123,129     $1,094,611
     Interest Expense........................     390,911     53,662        444,573
                                                 --------   --------     ----------

       Net Interest Income...................     580,571     69,467        650,038
     Provision for Possible Loan Losses......      63,513        789         64,302
                                                 --------    -------       --------

       Net Interest Income after Provision
        for Possible Loan Losses.............     517,058     68,678        585,736
     Other Income:
       Trust.................................      61,996      4,786         66,782
       Service charges.......................      67,144      7,317         74,461
       Credit card fees......................      24,312      1,377         25,689
       Securities gains......................       5,121        179          5,300
       Other.................................      61,130     12,227         73,357
                                                  -------    -------       --------

         Total Other Income..................     219,703     25,886        245,589
     Other Expense:
         Salaries and employee benefits......     245,469     30,080        275,549
         Net occupancy and equipment.........      70,911      7,763         78,674
         Other...............................     191,663     24,296        215,959
                                                 --------    -------       --------

           Total Other Expense...............     508,043     62,139        570,182
                                                 --------    -------       --------

           Income Before Income Taxes........     228,718     32,425        261,143
     Income Taxes............................      85,467     10,607         96,074
                                                 --------    -------       --------

           Net Income Before Change in
            Accounting Principle.............    $143,251    $21,818       $165,069
                                                 ========    =======       ========



                                               -68-<PAGE>







     Per Share Data:
         Average Common Shares Outstanding...  50,965,103                58,052,516
         Net Income Before Change in Accounting
           Principle.........................       $2.79                     $2.80<PAGE>








                                                   All Entities
                                                     Pro Forma
                                                     Combined
              Sterling   Security Bank    Metro    Consolidated
              --------   -------------    -----    ------------
               <C>              <C>      <C>         <C>  
               $11,261          $5,849   $6,306      $1,118,027
                 4,568           3,309    3,561         456,011
               -------          ------   ------      ----------

                 6,693           2,540    2,745         662,016
                   258              60      129          64,749
                ------           -----    -----        --------


                 6,435           2,480    2,616         597,267

                   147               0        0          66,929
                   363             112        0          74,936
                     0               0        0          25,689
                    11               0        9           5,320
                   344             173      366          74,240
                ------            ----     ----        --------

                   865             285      375         247,114

                 2,678             559      858         279,644
                   929             186      153          79,942
                 2,050             614      714         219,337
                ------            ----     ----        --------

                 5,657           1,359    1,725         578,923
                ------           -----    -----        --------

                 1,643           1,406    1,266         265,458
                   366             517      477          97,434
                ------           -----    -----        --------<PAGE>







                $1,277            $889     $789        $168,024
                ======            ====     ====        ========


                                                     58,991,486

                                                          $2.80


     See notes to pro forma combined consolidated financial statements.
     /TABLE
<PAGE>







     <TABLE>
     <CAPTION>
     MERCANTILE BANCORPORATION INC.
     PRO FORMA COMBINED CONSOLIDATED INCOME STATEMENT
     For the Year Ended December 31, 1992
     (Thousands except per share data)
     (Unaudited)

                                                                       MBI, Hawkeye
                                                                        Pro Forma
                                                                        Combined
                                                   MBI(1)    Hawkeye   Consolidated
                                                   ---       -------   ------------
     <S>                                       <C>          <C>          <C>    
     Interest Income.........................  $1,040,492   $128,261     $1,168,753
     Interest Expense........................     501,802     64,389        566,191
                                               ----------   --------     ----------

       Net Interest Income...................     538,690     63,872        602,562
     Provision for Possible Loan Losses......      79,787      1,677         81,464
                                                 --------    -------       --------

       Net Interest Income after Provision
        for Possible Loan Losses.............     458,903     62,195        521,098
     Other Income:
       Trust.................................      58,835      4,174         63,009
       Service charges.......................      64,813      6,482         71,295
       Credit card fees......................      21,745        547         22,292
       Securities gains......................       5,590        617          6,207
       Other.................................      55,091     10,671         65,762
                                                 --------    -------       --------

         Total Other Income..................     206,074     22,491        228,565
     Other Expense:
         Salaries and employee benefits......     224,948     27,887        252,835
         Net occupancy and equipment.........      64,466      6,893         71,359
         Other...............................     196,930     22,960        219,890
                                                 --------    -------       --------

           Total Other Expense...............     486,344     57,740        544,084
                                                 --------    -------       --------

           Income Before Income Taxes........     178,633     26,946        205,579
     Income Taxes............................      60,990      8,609         69,599
                                                 --------    -------       --------

           Net Income Before Change in
           Accounting Principle..............    $117,643    $18,337       $135,980
                                                 ========    =======       ========




                                               -69-<PAGE>







     Per Share Data:
         Average Common Shares Outstanding...  47,972,446                55,059,859
         Net Income Before Change in
           Accounting Principle..............       $2.43                     $2.42<PAGE>








                                                   All Entities
                                                     Pro Forma
                                                     Combined
              Sterling   Security Bank    Metro    Consolidated
              --------   -------------    -----    ------------
               <C>              <C>      <C>         <C>    
               $12,541          $6,142   $7,293      $1,194,729
                 6,026           3,874    4,753         580,844
               -------          ------   ------      ----------

                 6,515           2,268    2,540         613,885
                   375              60      202          82,101
                ------           -----    -----        --------


                 6,140           2,208    2,338         531,784

                   129               0        0          63,138
                   469              97        0          71,861
                     0               0        0          22,292
                    24               4      (29)          6,206
                   251              72      486          66,571
                ------            ----     ----        --------

                   873             173      457         230,068

                 2,402             438      816         256,491
                   566             103      171          72,199
                 2,037             525      733         223,185
                 -----            ----     ----        --------

                 5,005           1,066    1,720         551,875
                 -----           -----    -----        --------

                 2,008           1,315    1,075         209,977
                   457             459      445          70,960
                ------           -----    -----        --------<PAGE>







                $1,551            $856     $630        $139,017
                ======            ====     ====        ========


                                                     55,998,829

                                                          $2.44


     See notes to pro forma combined consolidated financial statements.
     /TABLE
<PAGE>







                          MERCANTILE BANCORPORATION INC.
                           NOTES TO PRO FORMA COMBINED
                        CONSOLIDATED FINANCIAL STATEMENTS
                                   (Unaudited)


         (1)    Represents MBI restated historical consolidated
                financial statements reflecting the acquisition of UNSL
                Financial Corp. effective January 3, 1995 and the
                acquisitions of Central Mortgage Bancshares, Inc. and
                TCBankshares, Inc. effective May 1, 1995, each of which
                was accounted for as a pooling-of-interest.

         (2)    The acquisitions of Security Bank, Sterling, Metro and
                Hawkeye will be accounted for as of pooling-of-
                interests.

         (3)    In conjunction with all of the proposed acquisitions,
                MBI may repurchase up to 891,390 shares of its own
                common stock in the open market.

         (4)    Acquisition of Security Bank with 322,000 shares of MBI
                Common Stock.

         (5)    Elimination of MBI's investment in Security Bank.

         (6)    Acquisition of Sterling with 521,424 shares of MBI
                Common Stock.

         (7)    Elimination of MBI's investment in Sterling.

         (8)    Acquisition of Hawkeye with 7,874,903 shares of MBI
                common stock, based on the exchange ratio of .585 shares
                of MBI Common Stock per share of Hawkeye Common Stock.

         (9)    Elimination of MBI's investment in Hawkeye.

         (10)   Acquisition of Metro with 199,446 shares of MBI Common
                Stock, based on the exchange ratio of 1.0286 shares of
                MBI Common Stock per share of Metro common stock.

         (11)   Elimination of MBI's investment in Metro.

         (12)   Upon consummation of the Merger, MBI expects to record
                certain adjustments related to the proposed Merger and
                to conform Hawkeye's accounting and credit policies
                regarding loan and other asset valuations to those of
                MBI.  The pre-tax adjustments are expected to total $30-
                35 million and would include an increase in the
                provision for loan losses to conform Hawkeye's credit
                evaluation policies to those of Mercantile and an
                increase in other expense to largely accrue for the
                change of control agreements, contract cancellation
                penalties and professional fees.








                                       -70-<PAGE>








                         INFORMATION REGARDING MBI STOCK

         DESCRIPTION OF MBI COMMON STOCK AND ATTACHED PREFERRED SHARE
         PURCHASE RIGHTS

                   GENERAL.  MBI has authorized 5,000,000 shares of
         Preferred Stock, and 100,000,000 shares of MBI Common Stock.
         At the Record Date, MBI had 5,306 shares of Series B-1
         Preferred Stock and 9,500 shares of Series B-2 Preferred Stock
         issued and outstanding and            shares of MBI Common
         Stock issued and outstanding.  Under Missouri law, MBI's Board
         of Directors may generally approve the issuance of authorized
         shares of Preferred Stock and MBI Common Stock without
         stockholder approval.

                   MBI's Board of Directors is also authorized to fix
         the number of shares and determine the designation of any
         series of Preferred Stock and to determine or alter the rights,
         preferences, privileges and restrictions granted to or imposed
         upon any series of Preferred Stock.  MBI's Board of Directors
         has designated and reserved Series A Junior Participating
         Preferred Stock pursuant to MBI's Preferred Share Purchase
         Rights Plan described below.  

                   The existence of a substantial number of unissued and
         unreserved shares of MBI Common Stock and undesignated shares
         of Preferred Stock may enable the MBI Board of Directors to
         issue shares to such persons and in such manner as may be
         deemed to have an antitakeover effect.

                   DIVIDENDS.  The holders of the MBI Common Stock are
         entitled to share ratably in dividends when, as and if declared
         by the MBI Board of Directors from funds legally available
         therefor, after full cumulative dividends have been paid or
         declared, and funds sufficient for the payment thereof set 
         apart, on all series of Preferred Stock ranking superior as to
         dividends to the MBI Common Stock.

                   The Board of Directors of MBI intends to maintain its
         present policy of paying quarterly cash dividends on the MBI
         Common Stock, when justified by the financial condition of MBI
         and its subsidiaries.  The declaration and amount of future
         dividends will depend on circumstances existing at the time,
         including MBI's earnings, financial condition and capital
         requirements as well as regulatory limitations, note and
         indenture provisions and such other factors as the Board of
         Directors may deem relevant.  The payment of dividends to MBI
         by subsidiary banks is subject to extensive regulation by
         various state and federal regulatory agencies.  See
         "SUPERVISION AND REGULATION."

                                       -71-<PAGE>







                   VOTING RIGHTS.  Each holder of MBI Common Stock has
         one vote for each share held on matters presented for
         consideration by the stockholders, except that, in the election
         of directors, such stockholders presently have cumulative
         voting rights which entitle each such stockholder to the number
         of votes which equals the number of shares held by the
         stockholder multiplied by the number of directors to be
         elected.  All such cumulative votes may be cast for one
         candidate for election as a director or may be distributed
         among two or more candidates.

                   PREEMPTIVE RIGHTS.  The holders of MBI Common Stock
         have no preemptive right to acquire any additional unissued
         shares or treasury shares of MBI.

                   LIQUIDATION RIGHTS.  In the event of liquidation,
         dissolution or winding-up of MBI, whether voluntary or
         involuntary, the holders of MBI Common Stock will be entitled
         to share ratably in any of its assets or funds that are
         available for distribution to its stockholders after the
         satisfaction of its liabilities (or after adequate provision is
         made therefor) and after preferences on any outstanding
         Preferred Stock.

                   ASSESSMENT AND REDEMPTION.  Shares of MBI Common
         Stock issuable in the Merger will be, when issued, fully paid
         and nonassessable.  Such shares do not have any redemption
         provisions.

                   PREFERRED SHARE PURCHASE RIGHTS PLAN.  One Right is
         attached to each share of MBI Common Stock.  The Rights trade
         automatically with shares of MBI Common Stock, and become
         exercisable and will trade separately from the MBI Common Stock
         on the 10th day after public announcement, or notice to MBI, 
         that a person or group has acquired, or has the right to
         acquire, beneficial ownership of 20% or more of the outstanding
         shares of MBI Common Stock, or upon commencement or
         announcement, or notice to MBI, of intent to make a tender
         offer for 20% or more of the outstanding shares of MBI Common
         Stock, in either case without prior written consent of a
         majority of the  Board of Directors.  When exercisable, each
         Right will entitle the holder to buy 1/100 of a share of Series
         A Junior Participating Preferred Stock at an exercise price of
         $100 per Right.  In the event a person or group acquires
         beneficial ownership of 20% or more of MBI Common Stock,
         holders of Rights (other than the acquiring person or group)
         may purchase MBI Common Stock having a market value of twice
         the then current exercise price of each Right.  If MBI is
         acquired by any person or group after the Rights become
         exercisable, each Right will entitle its holder to purchase
         stock of the acquiring company having a market value of twice
         the current exercise price of each Right.  The 


                                       -72-<PAGE>







         Rights are designed to protect the interests of MBI and its
         stockholders against coercive takeover tactics.  The purpose of
         the Rights is to encourage potential acquirors to negotiate
         with MBI's Board of Directors prior to attempting a takeover
         and to give the Board leverage in negotiating on behalf of all
         stockholders the terms of any proposed takeover.  The Rights
         may deter certain takeover proposals.  The Rights, which can be
         redeemed by MBI's Board of Directors in certain circumstances,
         expire by their terms on June 3, 1998.

                   CLASSIFICATION OF BOARD OF DIRECTORS.  The Board of
         Directors of MBI is divided into three classes, and the
         directors are elected by classes to three-year terms, so that
         one of the three classes of the directors of MBI will be
         elected at each annual meeting of the stockholders.  While this
         provision promotes stability and continuity of the Board of
         Directors, classification of the Board of Directors may also
         have the effect of decreasing the number of directors that
         could otherwise be elected at each annual meeting of
         stockholders by a person who obtains a controlling interest in
         the MBI Common Stock and thereby could impede a change in
         control of MBI.  Because fewer directors will be elected at
         each annual meeting, such classification also will reduce the
         effectiveness of cumulative voting as a means of establishing
         or increasing minority representation on the Board of
         Directors.

                   OTHER MATTERS.  MBI's Restated Articles of
         Incorporation and By-Laws also contain provisions which:  (i)
         require the affirmative vote of holders of at least 75% of the
         voting power of all of the outstanding shares of MBI entitled
         to vote in the election of directors to remove a director or
         directors without cause; (ii) require the affirmative vote of 
         the holders of at least 75% of the voting power of all shares
         of the outstanding capital stock of MBI to approve certain
         "business combinations" with "interested parties" unless at
         least two-thirds of the Board of Directors first approve such
         business combinations; and (iii) require an affirmative vote of
         at least 75% of the voting power of all shares of the
         outstanding capital stock of MBI for the amendment, alteration,
         change or repeal of any of the above provisions unless at least
         two-thirds of the Board of Directors first approve such an
         amendment, alteration, change or repeal.  MBI's Restated
         Articles of Incorporation also requires the Board of Directors,
         in considering any business combination, to give due
         consideration to all factors that the Board of Directors may
         consider relevant, including the effects of the proposed
         transaction on the depositors and customers of MBI and its
         subsidiaries, on their communities and geographic areas and on
         any of their businesses and properties; and the adequacy of the
         consideration offered in the proposed transaction in relation
         to the current market price of MBI's 

                                       -73-<PAGE>







         outstanding securities and to the value of MBI in a freely
         negotiated transaction and the Board's estimate of the future
         value of MBI.  Such provisions may be deemed to have an
         antitakeover effect.

         RESTRICTIONS ON RESALE OF MBI CAPITAL STOCK BY AFFILIATES;
         AFFILIATE AGREEMENTS

                   MBI COMMON STOCK.  Under Rule 145 of the Securities
         Act, all Supporting Stockholders, by virtue of being
         "affiliates" of Hawkeye, will be limited in their right to
         resell the stock so received in the Merger.  Supporting
         Stockholders who desire to resell the MBI Common Stock so
         received must sell such stock either pursuant to an effective
         registration statement under the Securities Act or in
         accordance with an applicable exemption.  In addition,
         Supporting Stockholders who become "affiliates" of MBI
         following the Merger will be limited in their right to resell
         the MBI Common Stock received in the Merger.  

                   Rule 145(d) provides that persons deemed to be
         affiliates of a company such as MBI solely by virtue of having
         been affiliates of a company such as Hawkeye prior to a
         transaction such as the Merger may resell their stock pursuant
         to certain of the requirements of Rule 144 under the Securities
         Act if such stock is sold within the first two years after the
         receipt thereof.  After two years if such person is not an
         affiliate of MBI and if MBI is current with respect to its
         required public filings, a former affiliate of Hawkeye may
         freely resell the stock received in the Merger without
         limitation.  After three years from the issuance of the stock,
         if such person is not an affiliate of MBI at the time of sale 
         and for at least three months prior to such sale, such person
         may freely resell such stock, without limitation, regardless of
         the status of MBI's required public filings.

                   The shares of MBI Common Stock to be received by
         affiliates of Hawkeye in the Merger will be legended as to the
         restrictions imposed upon resale of such stock.

         COMPARISON OF THE RIGHTS OF SHAREHOLDERS OF MBI AND HAWKEYE

                   MBI is incorporated under the laws of the State of
         Missouri.  Hawkeye is organized under the laws of the State of
         Iowa.  The rights of MBI's stockholders are governed by MBI's
         Restated Articles of Incorporation and By-Laws and The General
         and Business Corporation Law of the State of Missouri (the
         "Missouri Act").  The rights of Hawkeye's shareholders are
         governed by Hawkeye's Restated Articles of Incorporation and
         By-Laws and by the Iowa Act.  The rights of Hawkeye
         shareholders 

                                       -74-<PAGE>







         who receive shares of MBI Common Stock in the Merger will
         thereafter be governed by MBI's Restated Articles of
         Incorporation and By-Laws and by the Missouri Act.  The
         material rights of such shareholders, and, where applicable,
         material differences between the rights of MBI stockholders and
         Hawkeye shareholders, are summarized below.

                   PREFERRED SHARE PURCHASE RIGHTS PLAN.  As described
         above under "-- Description of MBI Common Stock and Attached
         Preferred Share Purchase Rights," MBI Common Stock has attached
         Rights, which may deter certain takeover proposals.  Hawkeye
         does not have a rights plan.

                   SUPERMAJORITY PROVISIONS.  MBI's Restated Articles of
         Incorporation and MBI's By-Laws contain provisions requiring a
         supermajority vote of the stockholders of MBI to approve
         certain proposals.  Under both MBI's Restated Articles and By-
         Laws, removal by the stockholders of the entire Board of
         Directors or any individual director from office without cause
         requires the affirmative vote of not less than 75% of the total
         votes entitled to be voted at a meeting of stockholders called
         for the election of directors.  Amendment by the stockholders
         of MBI's Restated Articles or By-Laws relating to (i) the
         number or qualification of directors; (ii) the classification
         of the Board of Directors; (iii) the filling of vacancies on
         the Board of Directors; or (iv) the removal of directors,
         requires the affirmative vote of not less than 75% of the total
         votes of MBI's then outstanding capital stock entitled to vote,
         voting together as a single class, unless such amendment has
         previously been expressly approved by at least 66-2/3% of the
         Board of Directors.  The MBI Restated Articles of Incorporation
         also provides that, in addition to any stockholder vote 
         required under Missouri law, the affirmative vote of the
         holders of not less than 75% of the total votes to which all of
         the then outstanding shares of capital stock of MBI are
         entitled, voting together as a single class (the "Voting
         Stock"), shall be required for the approval of any Business
         Combination.  A "Business Combination" is defined generally to
         include sales, exchanges, leases, transfers or other
         dispositions of assets, mergers or consolidations, issuances of
         securities, liquidations or dissolutions of MBI,
         reclassifications of securities or recapitalizations of MBI,
         involving MBI on the one hand, and an Interested Shareholder or
         an affiliate of an Interested Shareholder on the other hand.
         An "Interested Shareholder" is defined generally to include any
         person, firm, corporation or other entity which is the
         beneficial owner of 5% or more of the voting power of the
         outstanding Voting Stock.  If, however, at least 66-2/3% of the
         Board of Directors of MBI approve the Business Combination,
         such Business Combination shall require only the vote of
         stockholders as provided by Missouri law or 


                                       -75-<PAGE>







         otherwise.  The amendment of the provisions of MBI's Restated
         Articles relating to the approval of Business Combinations
         requires the affirmative vote of the holders of at least 75% of
         the Voting Stock unless such amendment has previously been
         approved by at least 66-2/3% of the Board of Directors.

                   Hawkeye's Articles of Incorporation and By-Laws do
         not require supermajority approval by shareholders of any
         corporate actions.

                   VOTING FOR DIRECTORS.  MBI's By-Laws provide for
         cumulative voting in the election of directors.  Cumulative
         voting entitles each stockholder to cast an aggregate number of
         votes equal to the number of voting shares held, multiplied by
         the number of directors to be elected.  Each stockholder may
         cast all such votes for one nominee or distribute them among
         two or more nominees, thus permitting holders of less than a
         majority of the outstanding shares of voting stock to achieve
         board representation.  Hawkeye's Articles and By-Laws likewise
         provide for cumulative voting in the election of directors.

                   CLASSIFIED BOARD.  As described under "-- Description
         of MBI Common Stock and Attached Preferred Share Purchase
         Rights -- Classification of Board of Directors," the Board of
         Directors of MBI is divided into three classes of directors,
         with each class being elected to a staggered three-year term.
         By reducing the number of directors to be elected in any given
         year, the existence of a classified Board of Directors
         diminishes the benefits of the cumulative voting rights of
         minority stockholders.  Hawkeye's Board of Directors is 
         likewise divided into three classes of directors, with each
         class being elected to a staggered three-year term.

                   DISSENTERS' RIGHTS.  Under the Missouri Act, a
         stockholder of any corporation which is party to a merger or
         consolidation, or which sells all or substantially all of its
         assets, has the right to dissent from such corporate action and
         to demand payment of the fair value of such shares.  Under the
         Iowa Act, shareholders of Hawkeye are entitled to dissenters'
         rights upon the consolidation or merger of Hawkeye or the sale
         of all or substantially all of Hawkeye's property which are
         similar but not identical to those under the Missouri Act.
         Specifically, the procedures and the filing deadlines
         applicable to dissenters' rights under the Missouri Act are
         somewhat different than those applicable in dissenters' rights
         proceedings under the Iowa Act.  

                   ANTITAKEOVER STATUTES.  The Missouri Act contains
         certain provisions applicable to Missouri corporations such as
         MBI which may be deemed to have an antitakeover effect.  Such 


                                       -76-<PAGE>







         provisions include Missouri's Business Combination Statute and
         the Control Share Acquisition Statute.

                   The Missouri Business Combination Statute protects
         domestic corporations from hostile takeovers by prohibiting
         certain transactions once an acquiror has gained control.
         Specifically, the statute restricts certain "Business
         Combinations" between a corporation and an "Interested
         Shareholder" or affiliates of the Interested Shareholder for a
         period of five years unless certain conditions are met.  A
         "Business Combination" includes a merger or consolidation,
         certain sales, leases exchanges, mortgages, pledges, transfers
         and similar dispositions of corporate assets or stock and
         certain reclassifications, recapitalizations, liquidations or
         dissolutions.  An "Interested Shareholder" includes any person
         or entity which beneficially owns or controls 20% or more of
         the outstanding voting shares of the corporation.

                   During the initial five-year restricted period, no
         Business Combination may occur unless such Business Combination
         or the transaction in which an Interested Shareholder becomes
         "interested" is approved by the board of directors of the
         corporation on or prior to the date of the transaction on which
         the Interested Shareholder became "interested."  Furthermore,
         no Business Combinations may occur unless (i) prior to the
         stock acquisition by the Interested Shareholder, the board of
         directors approves the transaction in which the Interested
         Shareholder became such or approves the Business Combination in
         question; (ii) the holders of a majority of the outstanding
         voting stock, other than stock owned by the Interested 
         Shareholder, approve the Business Combination; or (iii) the
         Business Combination satisfies certain detailed fairness and
         procedural requirements.

                   The Missouri Act exempts from its provisions (i)
         corporations not having a class of voting stock registered
         under Section 12 of the Exchange Act, unless the articles
         provide otherwise; (ii) corporations which adopt, as provided
         in the statute, provisions in their articles of incorporation
         or by-laws expressly electing not to be covered by the statute;
         and (iii) certain circumstances in which a stockholder
         inadvertently becomes an Interested Shareholder.  MBI's
         Restated Articles of Incorporation and By-Laws do not "opt out"
         of the Missouri Business Combination Statute.

                   The Missouri Act also contains a "Control Share
         Acquisition Statute" which provides that an "Acquiring Person"
         who after any acquisition of shares of a publicly traded
         corporation has the voting power, when added to all shares of 
         the
                                       -77-<PAGE>







         same corporation previously owned or controlled by the
         Acquiring Person, to exercise or direct the exercise of:  (i)
         20% but less than 33-1/3%, (ii) 33-1/3% or more but less than a
         majority or (iii) a majority or more, of the voting power of
         outstanding stock of such corporation must obtain stockholder
         approval for the purchase of the "Control Shares."  If approval
         is not given, the Acquiring Person's Control Shares lose the
         right to vote.  The statute prohibits an Acquiring Person from
         voting its Control Shares unless certain disclosure
         requirements are met and the retention or restoration of voting
         rights is approved by both:  (i) a majority of the outstanding
         voting stock, and (ii) a majority of the outstanding voting
         stock after exclusion of "Interested Shares."  Interested
         Shares are defined as shares owned by the Acquiring Person, by
         directors who are also employees, and by officers of the
         corporation elected or appointed by the directors of the
         corporation.  Stockholders are given dissenters' rights with
         respect to the vote on Control Share Acquisitions and may
         demand payment of the fair value of their shares.

                   A number of acquisitions of shares are deemed not to
         constitute Control Share Acquisitions, including good faith
         gifts, transfers pursuant to wills, purchases pursuant to an
         issuance by the corporation, mergers involving the corporation
         which satisfy the other requirements of the Missouri Act,
         transactions with a person who owned a majority of the voting
         power of the corporation within the prior year, or purchases
         from a person who has previously satisfied the provisions of
         the Control Share Acquisition Statute so long as the
         transaction does not result in the purchasing party having
         voting power after the purchase in a percentage range (as set 
         forth in the immediately preceding paragraph) beyond the range
         for which the selling party previously satisfied the provisions
         of the statute.  Additionally, a corporation may exempt itself
         from application of the statute by inserting a provision in its
         articles of incorporation or by-laws expressly electing not to
         be covered by the statute.  MBI's Restated Articles of
         Incorporation and By-Laws do not "opt out" of the Control Share
         Acquisition Statute.

                   The Iowa Act does not include similar anti-takeover
         statutes. 

                   SHAREHOLDER'S RIGHT TO INSPECT.  Under the Iowa Act,
         any shareholder may inspect the corporation's stock ledger,
         shareholder list and other books and records if the
         shareholder's demand for inspection is made in good faith and
         for a proper purpose.  The Iowa Act specifically provides that
         a shareholder may appoint an agent for the purpose of examining 


                                       -78-<PAGE>







         the books and records of the corporation.  The right of
         stockholders to inspect under the Missouri Act is generally
         similar to that of shareholders under the Iowa Act.  However,
         in comparison with the Iowa Act, in a given situation a
         Missouri stockholder may be provided with less guidance as to
         the scope of his or her ability to inspect the books and
         records of the corporation.

                   SIZE OF BOARD OF DIRECTORS.  As permitted under the
         Missouri Act, the number of directors on the Board of Directors
         of MBI is set forth in MBI's By-Laws, which provide that the
         number of directors may be fixed from time to time at not less
         than 12 nor more than 24 by an amendment of the By-Laws or by a
         resolution of the Board of Directors, in either case, adopted
         by the vote or consent of at least 66-2/3% of the number of
         directors then authorized under the By-Laws.  MBI's By-Laws
         provide for 19 directors on the Board of Directors of MBI.
         MBI's Board currently has 16 directors.  Similar to the
         Missouri Act, the Iowa Act provides that a corporation may fix
         the number of directors in its articles of incorporation or by-
         laws.  Hawkeye's Articles of Incorporation provide for a
         classified board with three classes of directors serving three-
         year terms.  Hawkeye's By-Laws provide for 17 directors on the
         Board of Directors of Hawkeye.  Hawkeye's By-Laws, including
         the provision establishing the number of members of Hawkeye's
         Board of Directors, may be amended by the vote of the holders
         of a majority of the Hawkeye Common Stock or by the vote of a
         majority of the members of the Hawkeye Board of Directors.
         Hawkeye's Board currently has 14 directors.



                            SUPERVISION AND REGULATION

         GENERAL

                   As a bank holding company, MBI is subject to
         regulation under the BHCA and its examination and reporting
         requirements.  Under the BHCA, a bank holding company may not
         directly or indirectly acquire the ownership or control of more
         than 5% of the voting shares or substantially all of the assets
         of any company, including a bank or savings and loan
         association, without the prior approval of (or, in the case of
         certain non-bank companies, prior notice to) the Federal
         Reserve Board.  In addition, bank holding companies are
         generally prohibited under the BHCA from engaging in nonbanking
         activities, subject to certain exceptions.

         As a savings and loan holding company, MBI is also subject to
         regulatory oversight by the Office of Thrift Supervision (the
         "OTS").  As such, MBI is required to register 


                                       -79-<PAGE>







         and file reports with the OTS and is subject to regulation by
         the OTS.  In addition, the OTS has enforcement authority over
         MBI which permits the OTS to restrict or prohibit activities
         that are determined to be a serious risk to its subsidiary
         savings association.

                   MBI and its subsidiaries are subject to supervision
         and examination by applicable federal and state banking
         agencies.  The earnings of MBI's subsidiaries, and therefore
         the earnings of MBI, are affected by general economic
         conditions, management policies and the legislative and
         governmental actions of various regulatory authorities,
         including the Federal Reserve Board, the OTS, the Federal
         Deposit Insurance Corporation (the "FDIC"), the Comptroller of
         the Currency (the "Comptroller") and the state banking
         regulatory agencies.  In addition, there are numerous
         governmental requirements and regulations that affect the
         activities of MBI and its subsidiaries.

         CERTAIN TRANSACTIONS WITH AFFILIATES

                   There are various legal restrictions on the extent to
         which a bank holding company such as MBI and its nonbank
         subsidiaries can engage in certain transactions, including
         borrowing or otherwise obtaining credit from its bank
         subsidiaries.  In general, these restrictions require that any
         such extensions of credit must be on non-preferential terms and
         secured by designated amounts of specified collateral and be
         limited, as to any one of the holding company or such nonbank
         subsidiaries, to 10% of the lending bank's capital stock and
         surplus, and as to the holding company and all such nonbank
         subsidiaries in the aggregate, to 20% of such bank's capital
         stock and surplus.  See "-- Recent Legislation."

         PAYMENT OF DIVIDENDS

                   MBI is a legal entity separate and distinct from its
         banking and other subsidiaries.  The principal source of MBI's
         revenues is dividends from its national and state banking
         subsidiaries.  Various federal and state statutory provisions 
         limit the amount of dividends the affiliate banks can pay to
         MBI without regulatory approval.  The approval of the
         appropriate bank regulator is generally required for any
         dividend by a national bank or state member bank if the total
         of all dividends declared by the bank in any calendar year
         would exceed the total of its net profits, as defined by
         regulatory authorities, for such year combined with its
         retained net profits for the preceding two years.  In addition,
         a national bank or a state member bank generally may not pay a 
         dividend in an amount 


                                       -80-<PAGE>







         greater than its net profits then on hand.  The payment of
         dividends by any affiliate bank may also be affected by other
         factors, such as the maintenance of adequate capital for such
         affiliate bank.

         CAPITAL ADEQUACY

                   The Federal Reserve Board has issued standards for
         measuring capital adequacy for bank holding companies.  These
         standards are designed to provide risk-responsive capital
         guidelines and to incorporate a consistent framework for use by
         financial institutions operating in major international
         financial markets.  The banking regulators have issued
         standards for banks that are similar but not identical to the
         standards for bank holding companies.

                   In general, the risk-related standards require banks
         and bank holding companies to maintain capital based on "risk
         adjusted" assets so that categories of assets with potentially
         higher credit risk will require more capital backing than
         categories with lower credit risk.  In addition, banks and bank
         holding companies are required to maintain capital to support
         off-balance sheet activities such as loan commitments.

                   The standards classify total capital for this risk-
         based measure into two tiers referred to as Tier 1 and Tier 2.
         Tier 1 capital consists of common stockholders' equity, certain
         noncumulative and cumulative perpetual preferred stock, and
         minority interests in equity accounts of consolidated
         subsidiaries; Tier 2 capital consists of the allowance for loan
         and lease losses (within certain limits), perpetual preferred
         stock not included in Tier 1, hybrid capital instruments, term
         subordinated debt, and intermediate-term preferred stock.  By
         December 31, 1992, bank holding companies were required to meet
         a minimum ratio of 8% of qualifying total capital to risk-
         adjusted assets, and a minimum ratio of 4% of qualifying Tier 1
         capital to risk-adjusted assets.  Capital that qualifies as
         Tier 2 capital is limited in amount to 100% of Tier 1 capital
         in testing compliance with the total risk-based capital minimum
         standards.  See "-- Recent Legislation."

                   In addition, the Federal Reserve Board has
         established minimum leverage ratio guidelines for bank holding
         companies.  These guidelines provide for a minimum ratio of
         Tier 1 capital to adjusted average total assets (the "leverage
         ratio") of 3% for bank holding companies that meet certain
         specified criteria, including having the highest regulatory
         rating.  Other bank holding companies generally are required to
         maintain a leverage ratio of at least 3% plus 100 to 200 basis
         points.

                                       -81-<PAGE>







         The guidelines also provide that bank holding companies
         experiencing internal growth or making acquisitions will be
         expected to maintain strong capital positions substantially
         above minimum supervisory levels, without significant reliance
         on intangible assets.  Furthermore, the Federal Reserve Board
         has indicated that it may consider other indicia of capital
         strength in evaluating proposals for expansion or new
         activities.

         SUPPORT OF SUBSIDIARY BANKS

                   Under Federal Reserve Board policy, MBI is expected
         to act as a source of financial strength to each subsidiary
         bank and to commit resources to support each of the
         subsidiaries in circumstances where it might not choose to do
         so absent such a policy.  In addition, any capital loans by MBI
         to any of its subsidiaries would also be subordinate in right
         of payment to deposits and certain other indebtedness of such
         subsidiary.  This support may be required at times when MBI may
         not find itself able to provide it.

                   Consistent with this policy regarding bank holding
         companies serving as a source of financial strength for their
         subsidiary banks, the Federal Reserve Board has stated that, as
         a matter of prudent banking, a bank holding company generally
         should not maintain a rate of cash dividends unless its net
         income available to common stockholders has been sufficient to
         fully fund the dividends, and the prospective rate of
         earnings retention appears consistent with the bank holding
         company's capital needs, asset quality and overall financial
         condition.

         RECENT LEGISLATION

                   The Financial Institutions Reform, Recovery and
         Enforcement Act of 1989 ("FIRREA") contains a "cross-guarantee"
         provision which could result in insured depository institutions
         owned by MBI being assessed for losses incurred by the FDIC in
         connection with assistance provided to, or the failure of, any
         other insured depository institution owned by MBI.  Under
         FIRREA, failure to meet the capital guidelines could subject a
         banking institution to a variety of enforcement remedies 
         available to federal regulatory authorities, including the
         termination of deposit insurance by the FDIC.

                   The Federal Deposit Insurance Corporation Improvement
         Act of 1991 ("FDICIA") made extensive changes to the federal
         banking laws, some of which have delayed effective dates or
         require implementing regulations.  FDICIA instituted certain
         changes to the supervisory process, including provisions that 


                                       -82-<PAGE>







         mandate certain regulatory agency actions against
         undercapitalized institutions within specified time limits, and
         contain various provisions that may affect the operations of
         banks and savings institutions.

                   The prompt corrective action provisions of FDICIA
         require the federal banking regulators to assign each insured
         institution to one of five capital categories ("well
         capitalized," "adequately capitalized" or one of three
         "undercapitalized" categories) and to take progressively more
         restrictive actions as specified below.  Under FDICIA, capital
         requirements would include a leverage limit, a risk-based
         capital requirement and any other measure of capital deemed
         appropriate by the federal banking regulators for measuring the
         capital adequacy of an insured depository institution.  All
         institutions, regardless of their capital levels, are
         restricted from making any capital distribution or paying any
         management fees that would cause the institution to fail to
         satisfy the minimum levels for any relevant capital measure.
         An institution that fails to meet the minimum level for any
         relevant capital measure (an "undercapitalized institution")
         shall be:  (i) subject to increased monitoring by the
         appropriate federal banking regulator; (ii) required to submit
         an acceptable capital restoration plan within 45 days after the
         institution becomes undercapitalized; (iii) subject to asset
         growth limits; and (iv) required to obtain prior regulatory
         approval for acquisitions, branching and new lines of
         businesses.  The capital restoration plan must include a
         guarantee by the institution's holding company (under which the
         holding company would be liable up to the lesser of 5% of the
         institution's total assets at the time the institution became
         undercapitalized or the amount necessary to bring the
         institution into capital compliance as of the date it failed to
         comply with its capital restoration plan) that the institution
         will comply with the plan until it has been adequately
         capitalized on average for four consecutive quarters.

                   The bank regulatory agencies have discretionary
         authority to reclassify a well capitalized institution as
         adequately capitalized or to impose on an adequately
         capitalized institution requirements or actions specified for
         undercapitalized institutions if the agency determines after 
         notice and an opportunity for hearing that the institution is
         in an unsafe or unsound condition or is engaging in an unsafe
         or unsound practice, which can consist of the receipt of an
         unsatisfactory examination rating if the deficiencies cited are
         not corrected.  A significantly undercapitalized institution,
         as well as any undercapitalized institution that did not submit
         or implement an acceptable capital restoration plan, may be
         subject to regulatory demands for recapitalization, broader
         application of restrictions on transactions with affiliates,
         limitations on

                                       -83-<PAGE>







          interest rates paid on deposits, restrictions on asset growth
         and other activities, possible replacement of directors and
         officers, and restrictions on capital distributions by any bank
         holding company controlling the institution.  Any company
         controlling the institution could also be required to divest
         the institution or the institution could be required to divest
         subsidiaries.  The senior executive officers of a significantly
         undercapitalized institution may not receive bonuses or
         increases in compensation without prior approval and a
         critically undercapitalized institution is prohibited from
         making payments of principal or interest on its debt that is
         subordinated to claims of general creditors.  If an
         institution's ratio of tangible equity to total assets falls
         below a level established by the appropriate federal banking
         regulator, which may not be less than 2% of total assets nor
         more than 65% of the minimum tangible equity level otherwise
         required (the "critical capital level"), the institution will
         be subject to conservatorship or receivership within 90 days
         unless periodic determinations are made that forbearance from
         such action would better protect the deposit insurance fund.
         Unless appropriate findings and certifications are made to the
         appropriate federal bank regulatory agencies, a critically
         undercapitalized institution must be placed in receivership if
         it remains critically undercapitalized on average during the
         calendar quarter beginning 270 days after the date it became
         critically undercapitalized.

                   The FDIC, the Comptroller and the Federal Reserve
         Board have adopted capital-related regulations under FDICIA.
         Under those regulations, a bank will be deemed well capitalized
         if it:  (a) has a risk-based capital ratio of 10% or greater;
         (b) has a ratio of Tier 1 capital to risk-adjusted assets of 6%
         or greater; (c) has a ratio of Tier 1 capital to adjusted total
         assets of 5% or greater; and (d) is not subject to an order,
         written agreement, capital directive, or prompt corrective
         action directive to meet and maintain a specific capital level
         for any capital measure.  An association will be deemed
         adequately capitalized if it was not "well-capitalized" and:
         (a) has a risk-based capital ratio of 8% or greater; (b) has a
         ratio of Tier 1 capital to risk-adjusted assets of 4% or
         greater; and (c) has a ratio of Tier 1 capital to adjusted 
         total assets of 4% or greater (except that certain associations
         rated "composite 1" under the federal banking agencies' CAMEL
         rating system may be adequately capitalized if their ratio of
         Tier 1 capital to adjusted total assets were 3% or greater).
         An institution that does not meet one or more of the
         "adequately capitalized" tests is deemed to be
         "undercapitalized."  If the institution has a total risk-based
         capital ratio that is less than 6%, a Tier 1 risk-based capital
         ratio that is less than 3%, or a leverage ratio that is less 
         than 3%, the institution


                                       -84-<PAGE>







         is deemed to be "significantly undercapitalized."  An
         institution is deemed to be "critically undercapitalized" if it
         has a ratio of tangible equity (as defined in the OCC's
         regulations) to total assets that is equal to or less than 2%.  

                   The federal bank regulatory agencies have issued
         various proposals to amend the risk-based capital guidelines
         for banks and bank holding companies.  Under one proposal, a
         bank would be required to give explicit consideration to
         interest rate risk as an element of capital adequacy by
         maintaining capital to compensate for such risk in an amount
         measured by such bank's exposure to interest rate risk in
         excess of a regulatory threshold.  Another proposal would
         revise the treatment given to (i) low-level recourse
         arrangements to reduce the amount of capital required and (ii)
         certain direct credit substitutes provided by banking
         organizations to require that capital be maintained against the
         value of the assets enhanced or the loans protected.  A
         proposal recently issued by the Federal Reserve Board and
         expected to be joined in by the other bank regulatory agencies
         increases the amount of capital required to be carried against
         certain long-term derivative contracts; in addition, the
         proposal recognizes the effect of certain bilateral netting
         arrangements in reducing potential future exposure under these
         contracts.  

                   The FDIC has adopted final regulations under FDICIA
         governing the receipt of brokered deposits.  Under these
         regulations, a bank cannot accept brokered deposits unless (i)
         it is "well capitalized" or (ii) it is "adequately capitalized"
         and receives a waiver from the FDIC.  In addition, banks that
         accept brokered deposits pursuant to such waivers (as well as
         banks in conservatorship) may not pay interest on such deposits
         in excess of 75 basis points over prevailing market rates.  A
         bank that cannot receive brokered deposits also cannot offer
         "pass-through" insurance on certain employee benefit accounts.
         There are no such restrictions on a bank that is "well
         capitalized."  

                   The FDIC, pursuant to the directive of FDICIA, has 
         adopted a risk-based premium schedule.  Each financial 
         institution is assigned to one of the three capital groups --
         well capitalized, adequately capitalized or undercapitalized --
         and further assigned to one of three subgroups, within a
         capital group, on the basis of supervisory evaluations by the
         institution's primary federal and, if applicable, state super-
         visiors and on the basis of other information relevant to the
         institution's financial conditions and the risk posed to the
         applicable insurance fund.  The actual assessment rate applicable
         to a particular institution will, therefore, depend in part
         upon the risk assessment classification so assigned to the 
         institution by the FDIC.
         
                   The legislation adopted in August 1989 to provide for
         the resolution of insolvent savings associations also required
         the FDIC to establish separate deposit insurance funds -- the
         Bank Insurance Fund ("BIF") for banks and the Savings
         Association Insurance Fund ("SAIF") for savings associations.
         The law also requires the FDIC to set deposit insurance
         assessments at such levels as will cause BIF and SAIF to reach
         their "designated reserve ratios" of 1.25 percent of the
         deposits insured by them within a reasonable period of time.
         Due to low costs of resolving bank insolvencies in the last few
         years, BIF reached its designated reserve ratio in May, 1995.
         As a result, the FDIC recently lowered deposit insurance assessment 


                                       -85-<PAGE>







         rates on banks by revising the range to $.04 to $.31 for every
         $100 of deposits.  However, the balance in SAIF is not expected
         to reach the designated reserve ratio until about the year
         2002, as the law provides that a significant portion of the
         costs of resolving past insolvencies of savings associations
         must be paid from its source.

                   MBI, which has acquired substantial amounts of
         SAIF-insured deposits during the years from 1989 to the
         present, is required to pay deposit insurance premiums on these
         SAIF-insured deposits.  Currently, SAIF-member institutions pay
         deposit insurance premiums based on a schedule of from $0.23 to
         $0.31 per $100 of deposits.  Bills have recently been proposed
         by the U.S. Congress to recapitalize the SAIF through a
         one-time special assessment of approximately 85 basis points on
         the amount of deposits held by the institution.  If such
         special assessment occurs, it is expected that the deposit
         premiums paid by the SAIF-member institutions would be reduced
         to approximately $.04 for every $100 of deposits and would
         have the effect of immediately reducing the capital of
         SAIF-member institutions by the amount of the fee (provided
         SAIF-member institutions are not permitted to amortize the
         expense of the one-time fee over a period of years).  MBI
         cannot predict whether the special assessment proposal will be
         enacted, or, if enacted, the amount of any one-time fee or
         whether ongoing SAIF premiums will be reduced to a level equal
         to that of BIF premiums.  If the one-time assessment is not
         enacted, it is presently expected that the SAIF will not be
         recapitalized until 2002 and the disparity between SAIF and BIF
         deposit premiums will continue.  MBI does not expect that
         either such additional deposit insurance costs or the proposed
         one-time assessment will have a significant, adverse effect on
         its earnings.

                   Proposals recently have been introduced in the U.S.
         Congress that, if adopted, would overhaul the savings
         association industry.  The most significant of these proposals
         would recapitalize the SAIF through a one-time special
         assessment, spread the FICO Bond obligation across the BIF and
         SAIF, merge the Comptroller and the OTS, abolish the federal
         savings association charter, require federal thrifts to convert
         to commercial banks and merge the SAIF and the BIF.  MBI cannot
         predict whether these or any other legislative proposals will
         be enacted, or, if enacted, the final form of the law.

                   FDICIA also made extensive changes in existing rules
         regarding audits, examinations and accounting.  It generally
         requires annual on-site, full-scope examinations by each bank's
         primary federal regulator.  It also imposed new
         responsibilities on management, the independent audit committee
         and outside 

                                       -86-<PAGE>







         accountants to develop or approve reports regarding the
         effectiveness of internal controls, legal compliance and off-
         balance sheet liabilities and assets.

                   Legislation enacted in August 1993 provides a
         preference for deposits and certain claims for administrative
         expenses and employee compensation against an insured
         depository institution, such as Hawkeye's and MBI's insured
         bank subsidiaries, in the "liquidation or other resolution" of
         such an institution by any receiver.  Such obligations would be
         afforded priority over other general unsecured claims against
         such an institution, including federal funds and letters of
         credit, as well as any obligation to stockholders of such an
         institution in their capacity as such.

                   In September 1994, legislation was enacted that is
         expected to have a significant effect in restructuring the
         banking industry in the United States.  The Riegle-Neal
         Interstate Banking and Branching Efficiency Act of 1994
         facilitates the interstate expansion and consolidation of
         banking organizations (i) by permitting bank holding companies
         that are adequately capitalized and managed, one year after
         enactment of the legislation, to acquire banks located in
         states outside their home states regardless of whether such
         acquisitions are authorized under the law of the host state,
         (ii) by permitting the interstate merger of banks after June 1,
         1997, subject to the right of individual states to "opt in" or
         to "opt out" of this authority before that date, (iii) by
         permitting banks to establish new branches on an interstate
         basis provided that such action is specifically authorized by 
         the law of the host state, (iv) by permitting foreign banks to
         establish, with approval of the regulators in the United
         States, branches outside their home states to the same extent
         that national or state banks located in the home state would be
         authorized to do so, and (v) by permitting, beginning September
         29, 1995, banks to receive deposits, renew time deposits, close
         loans, service loans and receive payments on loans and other
         obligations as agent for any bank or thrift affiliate, whether
         the affiliate is located in the same state or a different
         state.  One effect of this legislation will be to permit MBI to
         acquire banks located in any state and to permit bank holding
         companies located in any state to acquire banks and bank
         holding companies in Missouri.  Overall, this legislation is
         likely to have the effects of increasing competition and
         promoting geographic diversification in the banking industry.

                                       -87-<PAGE>







                                  LEGAL MATTERS

                   The validity of the MBI Common Stock to be issued in
         the Merger will be passed upon by Jon W. Bilstrom, General
         Counsel and Secretary of MBI, who, as of the Record Date,
         beneficially owned [30,216] shares of MBI Common Stock and held
         options to acquire [51,749] additional shares of MBI Common
         Stock.


                                     EXPERTS

                   The consolidated financial statements of MBI as of
         December 31, 1994, 1993 and 1992, and for each of the years in
         the three-year period ended December 31, 1994, incorporated by
         reference in the 1994 MBI Form 10-K, and the supplemental
         consolidated financial statements of MBI as of December 31,
         1994, 1993 and 1992, and for each of the years in the three-
         year period ended December 31, 1994, contained in MBI's Current
         Report on Form 8-K dated May 31, 1995, have been incorporated
         by reference herein in reliance upon the report of KPMG Peat
         Marwick LLP, independent certified public accountants,
         incorporated by reference herein, and upon the authority of
         such firm as experts in accounting and auditing.  

                   The consolidated financial statements incorporated in
         this Proxy Statement/Prospectus by reference from the 1994
         Hawkeye Form 10-K have been audited by Deloitte & Touche LLP,
         independent auditors, as stated in their report, which is
         incorporated herein by this reference, and have been so
         incorporated in reliance upon the report of such firm given
         upon their authority as experts in accounting and auditing.


                                  OTHER MATTERS

                   The Board of Directors of Hawkeye, at the date
         hereof, is not aware of any business to be presented at the
         Special Meeting other than that referred to in the Notice of
         Special Meeting and discussed herein.  If any other matter
         should properly come before the Special Meeting, the persons
         named as proxies will have discretionary authority to vote the
         shares represented by proxies in accordance with their
         discretion and judgment as to the best interests of Hawkeye.


                              STOCKHOLDER PROPOSALS

                   If the Merger is consummated, shareholders of Hawkeye
         will become stockholders of MBI at the Effective Time.  MBI 


                                       -88-<PAGE>







         stockholders may submit to MBI proposals for formal
         consideration at the 1996 annual meeting of MBI's stockholders
         and inclusion in MBI's proxy statement and proxy for such
         meeting.  All such proposals must be received in writing by the
         Corporate Secretary at Mercantile Bancorporation Inc., P.O. Box
         524, St. Louis, Missouri 63166-0524 by November 25, 1995 in
         order to be considered for inclusion in MBI's Proxy Statement
         and proxy for the 1996 annual meeting.



























                                       -89-<PAGE>

                                                                 ANNEX A





                     DISSENTERS' RIGHTS PROVISIONS UNDER THE
                          IOWA BUSINESS CORPORATION ACT


                   Set forth below is the text of the statutory
         dissenters' rights provisions under Division XIII of the Iowa
         Business Corporation Act.


                                  DIVISION XIII

                                DISSENTERS' RIGHTS

                                      PART A


              490.1301  DEFINITIONS FOR DIVISION XIII.--In this
         division:

              1.  "Beneficial shareholder" means the person who is a
         beneficial owner of shares held by a nominee as the record
         shareholder.

              2.  "Corporation" means the issuer of the shares held by a
         dissenter before the corporate action, or the surviving or
         acquiring corporation by merger or share exchange of that
         issuer.

              3.  "Dissenter" means a shareholder who is entitled to
         dissent from corporate action under section 490.1302 and who
         exercises that right when and in the manner required by
         sections 490.1320 through 490.1328.

              4.  "Fair value", with respect to a dissenter's shares,
         means the value of the shares immediately before the
         effectuation of the corporate action to which the dissenter
         objects, excluding any appreciation or depreciation in
         anticipation of the corporate action unless exclusion would be
         inequitable.

              5.  "Interest" means interest from the effective date of
         the corporate action until the date of payment, at the average
         rate currently paid by the corporation on its principal bank
         loans or, if none, at a rate that is fair and equitable under
         all the circumstances.

              6.  "Record shareholder" means the person in whose name
         shares are registered in the records of a corporation or the
         beneficial owner of shares to the extent of the rights granted
         by a nominee certificate on file with a corporation.

                                       A-1<PAGE>







              7.  "Shareholder" means the record shareholder or the
         beneficial shareholder.

              490.1302  SHAREHOLDERS' RIGHT TO DISSENT.--1.  A
         shareholder is entitled to dissent from, and obtain payment of
         the fair value of the shareholder's shares in the event of, any
         of the following corporate actions:

              a.  Consummation of a plan of merger to which the
         corporation is a party if either of the following apply:

              (1)  Shareholder approval is required for the merger by
         section 490.1103 or the articles of incorporation and the
         shareholder is entitled to vote on the merger.

              (2)  The corporation is a subsidiary that is merged with
         its parent under section 490.1104.

              b.  Consummation of a plan of share exchange to which the
         corporation is a party as the corporation whose shares will be
         acquired, if the shareholder is entitled to vote on the plan.

              c.  Consummation of a sale or exchange of all, or
         substantially all, of the property of the corporation other
         than in the usual and regular course of business, if the
         shareholder is entitled to vote on the sale or exchange,
         including a sale in dissolution, but not including a sale
         pursuant to court order or a sale for cash pursuant to a plan
         by which all or substantially all of the net proceeds of the
         sale will be distributed to the shareholders within one year
         after the date of sale.

              d.  An amendment of the articles of incorporation that
         materially and adversely affects rights in respect of a
         dissenter's shares because it does any or all of the following:

              (1)  Alters or abolishes a preferential right of the
         shares.

              (2)  Creates, alters, or abolishes a right in respect of
         redemption, including a provision respecting a sinking fund for
         the redemption or repurchase, of the shares.

              (3)  Alters or abolishes a preemptive right of the holder
         of the shares to acquire shares or other securities.

              (4)  Excludes or limits the right of the shares to vote on
         any matter, or to cumulate votes, other than a limitation by
         dilution through issuance of shares or other securities with
         similar voting rights.


                                       A-2<PAGE>







              (5)  Reduces the number of shares owned by the shareholder
         to a fraction of a share if the fractional share so created is
         to be acquired for cash under section 490.604.

              (6)  Extends, for the first time after being governed by
         this chapter, the period of duration of a corporation organized
         under chapter 491 or 496A and existing for a period of years on
         the day preceding the date the corporation is first governed by
         this chapter.

              e.  Any corporate action taken pursuant to a shareholder
         vote to the extent the articles of incorporation, bylaws, or a
         resolution of the board of directors provides that voting or
         nonvoting shareholders are entitled to dissent and obtain
         payment for their shares.

              2.  A shareholder entitled to dissent and obtain payment
         for the shareholder's shares under this chapter is not entitled
         to challenge the corporate action creating the shareholder's
         entitlement unless the action is unlawful or fraudulent with
         respect to the shareholder or the corporation.

              490.1303 DISSENT BY NOMINEES AND BENEFICIAL OWNERS.--1.  A
         record shareholder may assert dissenters' rights as to fewer
         than all the shares registered in that shareholder's name only
         if the shareholder dissents with respect to all shares
         beneficially owned by any one person and notifies the
         corporation in writing of the name and address of each person
         on whose behalf the shareholder asserts dissenters' rights.
         The rights of a partial dissenter under this subsection are
         determined as if the shares as to which the shareholder
         dissents and the shareholder's other shares were registered in
         the names of different shareholders.

              2.  A beneficial shareholder may assert dissenters' rights
         as to shares held on the shareholder's behalf only if the
         shareholder does both of the following:

              a.  Submits to the corporation the record shareholder's
         written consent to the dissent not later than the time the
         beneficial shareholder asserts dissenters' rights.

              b.  Does so with respect to all shares of which the
         shareholder is the beneficial shareholder or over which that
         beneficial shareholder has power to direct the vote.

                                      PART B

              490.1320  NOTICE OF DISSENTERS' RIGHTS.--1.  If proposed
         corporate action creating dissenters' rights under section 


                                       A-3<PAGE>







         490.1302 is submitted to a vote at a shareholders' meeting, the
         meeting notice must state that shareholders are or may be
         entitled to assert dissenters' rights under this part and be
         accompanied by a copy of this part.

              2.  If corporate action creating dissenters' rights under
         section 490.1302 is taken without a vote of shareholders, the
         corporation shall notify in writing all shareholders entitled
         to assert dissenters' rights that the action was taken and send
         them the dissenters' notice described in section 490.1322.

              490.1321  NOTICE OF INTENT TO DEMAND PAYMENT.--1.  If
         proposed corporate action creating dissenters' rights under
         section 490.1302 is submitted to a vote at a shareholders'
         meeting, a shareholder who wishes to assert dissenters' rights
         must do all of the following:

              a.  Deliver to the corporation before the vote is taken
         written notice of the shareholder's intent to demand payment
         for the shareholder's shares if the proposed action is
         effectuated.

              b.  Not vote the dissenting shareholder's shares in favor
         of the proposed action.

              2.  A shareholder who does not satisfy the requirements of
         subsection 1, is not entitled to payment for the shareholder's
         shares under this part.

              490.1322  DISSENTERS' NOTICE--1.  If proposed corporate
         action creating dissenters' rights under section 490.1302 is
         authorized at a shareholders' meeting, the corporation shall
         deliver a written dissenters' notice to all shareholders who
         satisfied the requirements of section 490.1321.

              2.  The dissenters' notice must be sent no later than ten
         days after the PROPOSED corporate action is AUTHORIZED AT A
         SHAREHOLDERS' MEETING, OR, IF THE CORPORATE ACTION IS TAKEN
         WITHOUT A VOTE OF THE SHAREHOLDERS, NO LATER THAN TEN DAYS
         AFTER THE CORPORATE ACTION IS TAKEN, and must do all of the
         following:

              a.  State where the payment demand must be sent and where
         and when certificates for certificated shares must be
         deposited.

              b.  Inform holders of uncertificated shares to what extent
         transfer of the shares will be restricted after the payment
         demand is received.


                                       A-4<PAGE>







              c.  Supply a form for demanding payment that includes the
         date of the first announcement to news media or to shareholders
         of the terms of the proposed corporate action and requires that
         the person asserting dissenters' rights certify whether or not
         the person acquired beneficial ownership of the shares before
         that date.

              d.  Set a date by which the corporation must receive the
         payment demand, which date shall not be fewer than thirty nor
         more than sixty days after the date the DISSENTERS' notice is
         delivered.

              e.  Be accompanied by a copy of this division.

              490.1323  DUTY TO DEMAND PAYMENT.--1.  A shareholder sent
         a dissenter's notice described in section 490.1322 must demand
         payment, certify whether the shareholder acquired beneficial
         ownership of the shares before the date required to be set
         forth in the dissenter's notice pursuant to section 490.1322,
         subsection 2, paragraph "c", and deposit the shareholder's
         certificates in accordance with the terms of the notice.

              2.  The shareholder who demands payment and deposits the
         shareholder's shares under subsection 1 retains all other
         rights of a shareholder until these rights are canceled or
         modified by the taking of the proposed corporate action.

              3.  A shareholder who does not demand payment or deposit
         the shareholder's share certificates where required, each by
         the date set in the dissenters' notice, is not entitled to
         payment for the shareholder's shares under this division.

              490.1324  SHARE RESTRICTIONS.--1.  The corporation may
         restrict the transfer or uncertificated shares from the date
         the demand for their payment is received until the proposed
         corporate action is taken or the restrictions released under
         section 490.1326.

              2.  The person for whom dissenters' rights are asserted as
         to uncertificated shares retains all other rights of a
         shareholder until these rights are canceled or modified by the
         taking of the proposed corporate action.

              490.1325  PAYMENT.--1.  Except as provided in section
         490.1327, AT THE TIME the proposed corporate action is taken,
         or upon receipt of a payment demand, WHICHEVER OCCURS LATER,
         the corporation shall pay each dissenter who complied with
         section 490.1323 the amount the corporation estimates to be the
         fair value of the dissenter's shares, plus accrued interest.


                                       A-5<PAGE>







              2.  The payment must be accompanied by all of the
         following:

              a.  The corporation's balance sheet as of the end of a
         fiscal year ending not more than sixteen months before the date
         of payment, an income statement for that year, a statement of
         changes in shareholders' equity for that year, and the latest
         available interim financial statements, if any.

              b.  A statement of the corporation's estimate of the fair
         value of the shares.

              c.  An explanation of how the interest was calculated.

              d.  A statement of the dissenter's right to demand payment
         under section 490.1328.

              e.  A copy of this division. 

              490.1326 FAILURE TO TAKE ACTION.--1.  If the corporation
         does not take the proposed action within sixty days after the
         date set for demanding payment and depositing share
         certificates, the corporation shall return the deposited
         certificates and release the transfer restrictions imposed on
         uncertificated shares.

              2.  If after returning deposited certificates and
         releasing transfer restrictions, the corporation takes the
         proposed action, it must send a new dissenters' notice under
         section 490.1322 AS IF THE CORPORATE ACTION WAS TAKEN WITHOUT A
         VOTE OF THE SHAREHOLDERS and repeat the payment demand
         procedure.  

              490.1327 AFTER-ACQUIRED SHARES.--1.  A corporation may
         elect to withhold payment required by section 490.1325 from a
         dissenter unless the dissenter was the beneficial owner of the
         shares before the date set forth in the dissenters' notice as
         the date of the first announcement to news media or to
         shareholders of the terms of the proposed corporate action.

              2.  To the extent the corporation elects to withhold
         payment under subsection 1, after taking the proposed corporate
         action, it shall estimate the fair value of the shares, plus
         accrued interest, and shall pay this amount to each dissenter
         who agrees to accept it in full satisfaction of the dissenter's
         demand.  The corporation shall send with its offer a statement
         of its estimate of the fair value of the shares, an explanation
         of how the interest was calculated, and a statement of the
         dissenter's right to demand payment under section 490.1328.


                                       A-6<PAGE>







              490.1328 PROCEDURE IF SHAREHOLDER DISSATISFIED WITH
         PAYMENT OR OFFER.--1.  A dissenter may notify the corporation
         in writing of the dissenter's own estimate of the fair value of
         the dissenter's shares and amount of interest due, and demand
         payment of the dissenter's estimate, less any payment under
         section 490.1325, or reject the corporation's offer under
         section 490.1327 and demand payment of the fair value of the
         dissenter's shares and interest due, if any of the following
         apply:

              a.  The dissenter believes that the amount paid under
         section 490.1325 or offered under section 490.1327 is less than
         the fair value of the dissenter's shares or that the interest
         due is incorrectly calculated.

              b.  The corporation fails to make payment under section
         490.1325 within sixty days after the date set for demanding
         payment.

              c.  The corporation, having failed to take the proposed
         action, does not return the deposited certificates or release
         the transfer restrictions imposed on uncertificated shares
         within sixty days after the date set for demanding payment.

              2.  A dissenter waives the dissenter's right to demand
         payment under this section unless the dissenter notifies the
         corporation of the dissenter's demand in writing under
         subsection 1 within thirty days after the corporation made or
         offered payment for the dissenter's shares.

                                      PART C

              490.1330 COURT ACTION.--1.  If a demand for payment under
         section 490.1328 remains unsettled,  the corporation shall
         commence a proceeding within sixty days after receiving the
         payment demand and petition the court to determine the fair
         value of the shares and accrued interest.  If the corporation
         does not commence the proceeding within the sixty-day period,
         it shall pay each dissenter whose demand remains unsettled the
         amount demanded.

              2.  The corporation shall commence the proceeding in the
         district court of the county where a corporation's principal
         office or, if none in this state, its registered office is
         located.  If the corporation is a foreign corporation without a
         registered office in this state, it shall commence the
         proceeding in the county in this state where the registered
         office of the domestic corporation merged with or whose shares
         were acquired by the foreign corporation was located.


                                       A-7<PAGE>







              3.  The corporation shall make all dissenters, whether or
         not residents of this state, whose demands remain unsettled
         parties to the proceeding as in an action against their shares
         and all parties must be served with a copy of the petition.
         Nonresidents may be served by registered or certified mail or
         by publication as provided by law.

              4.  The jurisdiction of the court in which the proceeding
         is commenced under subsection 2 is plenary and exclusive.  The
         court may appoint one or more persons as appraisers to receive
         evidence and recommend decision on the question of fair value.
         The appraisers have the powers described in the order
         appointing them, or in any amendment to it.  The dissenters are
         entitled to the same discovery rights as parties in other civil
         proceedings.

              5.  Each dissenter made a party to the proceeding is
         entitled to judgment for either of the following:

              a.  The amount, if any, by which the court finds the fair
         value of the dissenter's shares, plus interest, exceeds the
         amount paid by the corporation.

              b.  The fair value, plus accrued interest, of the
         dissenter's after-acquired shares for which the corporation
         elected to withhold payment under section 490.1327.

              490.1331 COURT COSTS AND COUNSEL FEES.--1.  The court in
         an appraisal proceeding commenced under section 490.1330 shall
         determine all costs of the proceeding, including the reasonable
         compensation and expenses of appraisers appointed by the court.
         The court shall assess the costs against the corporation,
         except that the court may assess costs against all or some of
         the dissenters, in amounts the court finds equitable, to the
         extent the court finds the dissenters acted arbitrarily,
         vexatiously, or not in good faith in demanding payment under
         section 490.1328.

              2.  The court may also assess the fees and expenses of
         counsel and experts for the respective parties, in amounts the
         court finds equitable, for either of the following:

              a.  Against the corporation and in favor of any or all
         dissenters if the court finds the corporation did not
         substantially comply with the requirements of sections 490.1320
         through 490.1328.

              b.  Against either the corporation or a dissenter, in
         favor of any other party, if the court finds that the party
         against whom the fees and expenses are assessed acted 

                                       A-8<PAGE>







         arbitrarily, vexatiously, or not it good faith with respect to
         the rights provided by this chapter.

              3.  If the court finds that the services of counsel for
         any dissenter were of substantial benefit to other dissenters
         similarly situated, and that the fees for those services should
         not be assessed against the corporation, the court may award to
         these counsel reasonable fees to be paid out of the amounts
         awarded the dissenters who were benefited.










































                                       A-9<PAGE>



                                                            ANNEX B



                              FORM OF OPINION OF DLJ





                                            __________, 1995 





         Board of Directors
         Hawkeye Bancorporation 
         222 Equitable Building 
         604 Locust Street 
         Des Moines, Iowa  50309-3723 

         Members of the Board:  

                   You have requested our opinion as to the fairness,
         from a financial point of view, to the holders of the
         outstanding shares of common stock, without par value (the
         "Hawkeye Common Stock"), of Hawkeye Bancorporation ("Hawkeye")
         of the exchange ratio for the exchange of common shares in the
         merger (the "Merger") of Hawkeye with and into Mercantile
         Bancorporation Inc. of Iowa, a wholly-owned subsidiary of
         Mercantile Bancorporation Inc. ("MBI"), pursuant to the
         Agreement and Plan of Reorganization, dated August 4, 1995,
         between Hawkeye and MBI (the "Merger Agreement").  

                   Pursuant to the Merger Agreement, in the Merger each
         share of Hawkeye Common Stock shall be converted into the right
         to receive .585 of a share of common stock, par value $5.00 per
         share, of MBI ("MBI Common Stock") (the "Exchange Ratio").  We
         understand that the Merger is conditioned upon, among other
         things, receipt of opinions to the effect that the Merger will
         qualify for treatment as a tax-free reorganization and as a
         pooling of interests for accounting purposes.  In connection
         with the Merger, the parties have also entered into an
         agreement (the "Stock Option Agreement") pursuant to which
         Hawkeye has irrevocably granted MBI an option to purchase
         2,678,000 shares of Hawkeye Common Stock (subject to adjustment
         in certain circumstances but in no event to exceed 19.9% of the
         then outstanding shares of Hawkeye Common Stock), at a price
         and on 




                                       B-1<PAGE>

         Board of Directors
         Hawkeye Bancorporation
         ___________, 1995
         Page 2


         the terms and conditions set forth in the Stock Option
         Agreement.  The terms of the Merger are more fully set forth in
         the Merger Agreement.  

                   For purposes of this opinion and in connection with
         our review of the proposed transaction, we have, among other
         things:  

                   1.   Participated in discussions and negotiations
                        among representatives of Hawkeye and MBI and
                        their respective legal advisors that resulted in
                        the Merger Agreement;  

                   2.   Reviewed the terms of the Merger Agreement and
                        Stock Option Agreement; 

                   3.   Reviewed the proxy statement/prospectus dated
                        the date hereof relating to the Merger to be
                        sent to the holders of Hawkeye Common Stock; 

                   4.   Reviewed certain publicly available financial
                        statements, both audited and unaudited, of
                        Hawkeye and MBI, including those included in
                        their respective Annual Reports on Form 10-K for
                        the five years ended December 31, 1994 and the
                        respective Quarterly Reports on Form 10-Q for
                        the periods ended March 31, 1995 and June 30,
                        1995; 

                   5.   Reviewed certain financial statements and other
                        financial and operating data concerning Hawkeye
                        and MBI prepared by their respective
                        managements; 

                   6.   Reviewed certain financial forecasts of Hawkeye
                        prepared by its management and made inquiries of
                        representatives of MBI management as to the
                        expected future financial performance of MBI on
                        a stand-alone basis and giving effect to the
                        Merger; 

                   7.   Discussed certain aspects of the past and
                        current business operations, financial condition
                        and future prospects of Hawkeye and MBI with
                        certain members of their respective managements; 

                                       B-2<PAGE>

         Board of Directors
         Hawkeye Bancorporation
         ___________, 1995
         Page 3


                   8.   Reviewed reported market prices and historical
                        trading activity of Hawkeye Common Stock and MBI
                        Common Stock; 

                   9.   Reviewed certain aspects of the financial
                        performance of Hawkeye and MBI and compared such
                        financial performance of Hawkeye and MBI,
                        together with stock market data relating to
                        Hawkeye Common Stock and MBI Common Stock, with
                        similar data available for certain other financial
                        institutions and certain of their publicly traded
                        securities; 

                   10.  Reviewed certain of the financial terms, to the
                        extent publicly available, of certain recent
                        business combinations involving other financial
                        institutions; and 

                   11.  Conducted such other studies, analyses, and
                        examinations as we deemed appropriate.  

                   We have relied upon and assumed without independent
         verification the accuracy and completeness of all of the
         financial and other information that has been provided to us by
         Hawkeye, MBI and their respective representatives and of the
         publicly available information that was reviewed by us.  With
         your permission, we have also relied upon the managements of
         both Hawkeye and MBI as to the reasonableness and achievability
         of the financial and operating forecasts provided to us (and
         the assumptions and bases therefor).  In that regard, we have
         assumed with your permission that such forecasts, including
         without limitation projected cost savings and operating
         synergies resulting from the Merger, reflect the best currently
         available estimates and judgments of such respective
         managements and that such forecasts will be realized in the
         amounts and in the time periods currently estimated by the
         managements of Hawkeye and MBI.  We have not independently
         verified and have relied on and assumed that the aggregate
         allowances for loan losses set forth in the balance sheets of
         each of Hawkeye and MBI at June 30, 1995 are adequate to cover
         such losses and complied fully with applicable law, regulatory
         policy and sound banking practice as of the date of such
         financial statements.  We were not retained to and we did not
         conduct a physical inspection of any of the properties or
         facilities of Hawkeye or MBI, did not make any independent
         evaluation or appraisal of the assets, liabilities or prospects
         of Hawkeye or MBI, were 


                                       B-3<PAGE>

         Board of Directors
         Hawkeye Bancorporation
         ___________, 1995
         Page 4


         not furnished with any such evaluation or appraisal, and did
         not review any individual credit files.  In rendering our
         opinion, we have been advised by Hawkeye and MBI and have
         assumed with your permission that there are no other factors
         that would delay or subject to adverse conditions any necessary
         regulatory or governmental approval for the Merger, and we have
         assumed that all conditions to the Merger will be satisfied and
         not waived.  

                   Donaldson, Lufkin & Jenrette Securities Corporation
         ("DLJ"), as part of its investment banking business, is
         regularly engaged, with respect to bank holding companies and
         other corporations, in the valuation of businesses and their
         securities in connection with mergers and acquisitions,
         negotiated underwritings, competitive biddings, secondary
         distributions of listed and unlisted securities, private
         placements, and valuations for corporate and other purposes.
         DLJ has performed investment banking services for Hawkeye in
         the past and has been compensated for such services.  In the
         ordinary course of our business we may actively trade the debt
         and equity securities of companies, including Hawkeye and MBI,
         for our own account and for the accounts of customers and may
         hold a long or short position in such securities at any time.  

                   Our opinion is based solely upon the information
         available to us and the economic, market, and other
         circumstances as they exist as of the date hereof.  Events
         occurring after the date hereof could materially affect the
         assumptions used in preparing this opinion.  We have not
         undertaken to reaffirm or revise this opinion or otherwise
         comment upon any events occurring after the date hereof.  

                   We are not expressing any opinion herein as to the
         prices at which shares of MBI Common Stock issued in the Merger
         may trade if and when they are issued or at any future time.
         Our opinion as expressed herein is limited to the fairness,
         from a financial point of view, of the Exchange Ratio to the
         holders of Hawkeye Common Stock and does not address Hawkeye's
         underlying business decision to proceed with the Merger.  We
         have been retained on behalf of Hawkeye's Board of Directors,
         and our opinion does not constitute a recommendation to any
         holder of Hawkeye Common Stock as to how such holder should
         vote with respect to the Merger Agreement at any meeting of
         holders of Hawkeye Common Stock.  

                                       B-4<PAGE>

         Board of Directors
         Hawkeye Bancorporation
         ___________, 1995
         Page 5


                   Subject to the foregoing and based on our experience
         as investment bankers, our activities as described above, and
         other factors we have deemed relevant, we are of the opinion as
         of the date hereof that the Exchange Ratio is fair, from a
         financial point of view, to the holders of Hawkeye Common
         Stock.  

                                            Very truly yours, 



                                            DONALDSON, LUFKIN & JENRETTE
                                            SECURITIES CORPORATION


                                            By:_________________________
                                                    David D. Olson 
                                                   Managing Director <PAGE>







                                 [FORM OF PROXY]

                                     [FRONT]

                              HAWKEYE BANCORPORATION

                THIS PROXY SOLICITED BY THE BOARD OF DIRECTORS FOR
                THE SPECIAL MEETING OF SHAREHOLDERS TO BE HELD ON 
                              _____________ __, 1995


                   The undersigned hereby appoints Paul D. Dunlap,
         Robert W. Murray and R. Douglas, and each of them with full
         power to act alone, the true and lawful attorneys in fact and
         proxies of the undersigned to vote all shares of Common Stock
         of HAWKEYE BANCORPORATION, an Iowa corporation (the "Company"),
         held by the undersigned, with full power of substitution, with
         the same force and effect as the undersigned would be entitled
         to vote if personally present at the Special Meeting of
         Shareholders of the Company to be held at ______________, Des
         Moines, Iowa, on __________  __, 1995, at ______ a.m. (Central
         Time), and at any adjournment or postponement thereof, as
         follows:


         [X]  PLEASE MARK YOUR
              VOTES AS IN THIS
              EXAMPLE


         1.   Approval and adoption of the Agreement and   FOR  AGAINST  ABSTAIN
              Plan of Reorganization, dated August 4,      [ ]   [ ]      [ ]
              1995 (the "Merger Agreement"), by and
              between Mercantile Bancorporation Inc., a 
              Missouri corporation, and the Company.


         2.   OTHER MATTERS:  Discretionary authority is
              hereby granted to transact such other 
              business as may properly come before the
              meeting or any adjournment or postponement
              thereof.


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

                                         [BACK]

         THE COMPANY'S BOARD OF DIRECTORS RECOMMENDS A VOTE FOR THE
         APPROVAL AND ADOPTION OF THE MERGER AGREEMENT.<PAGE>







         PLEASE COMPLETE, SIGN, DATE AND RETURN THIS PROXY CARD
         PROMPTLY, USING THE ENCLOSED ENVELOPE.

         THIS PROXY, WHEN PROPERLY EXECUTED, WILL BE VOTED IN THE MANNER
         DIRECTED HEREIN.  IF THIS PROXY IS SUBMITTED, BUT NO DIRECTIONS
         ARE MADE, THIS PROXY WILL BE VOTED "FOR" THE APPROVAL AND
         ADOPTION OF THE MERGER AGREEMENT.

         The undersigned hereby acknowledges receipt of the Notice of
         Special Meeting of Shareholders and the Proxy Statement/
         Prospectus, each dated _________ __, 1995, furnished herewith.

         Dated:  ______________________, 1995
         Signature: ____________________________________________________
         Signature(s) (if held jointly): _______________________________
         Title or Authority:____________________________________________<PAGE>







         IMPORTANT:  Please sign your name exactly as it appears hereon.
         When signing as attorney, agent, executor, administrator,
         trustee, guardian or corporate officer, please give your full
         title as such.  Each joint owner should sign the proxy.  If
         executed by a partnership, this proxy should be signed by an
         authorized partner.<PAGE>







                                     PART II

                    INFORMATION NOT REQUIRED IN THE PROSPECTUS

         ITEM 20.  INDEMNIFICATION OF DIRECTORS AND OFFICERS

                   Sections 351.355(1) and (2) of The General and
         Business Corporation Law of the State of Missouri provide that
         a corporation may indemnify any person who was or is a party or
         is threatened to be made a party to any threatened, pending or
         completed action, suit or proceeding by reason of the fact that
         he is or was a director, officer, employee or agent of the
         corporation, or is or was serving at the request of the
         corporation as a director, officer, employee or agent of
         another corporation, partnership, joint venture, trust or other
         enterprise, against expenses (including attorneys' fees),
         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 corporation and, with respect to any criminal
         action or proceeding, had no reasonable cause to believe his
         conduct was unlawful, except that, in the case of an action or
         suit by or in the right of the corporation, the corporation may
         not indemnify such persons against judgments and fines and no
         person shall be indemnified as to any claim, issue or matter as
         to which such person shall have been adjudged to be liable for
         negligence or misconduct in the performance of his duty to the
         corporation, unless and only to the extent that the court in
         which the action or suit was brought determines upon
         application that such person is fairly and reasonably entitled
         to indemnity for proper expenses.  Section 331.355(3) provides
         that, to the extent that a director, officer, employee or agent
         of the corporation has been successful in the defense of any
         such action, suit or proceeding or any claim, issue or matter
         therein, he shall be indemnified against expenses, including
         attorneys' fees, actually and reasonably, incurred in
         connection with such action, suit or proceeding.  Section
         351.355(7) provides that a corporation may provide additional
         indemnification to any person indemnifiable under subsection
         (1) or (2), provided such additional indemnification is
         authorized by the corporation's articles of incorporation or an
         amendment thereto or by a shareholder-approved bylaw or
         agreement, and provided further that no person shall thereby be
         indemnified against conduct which was finally adjudged to have
         been knowingly fraudulent, deliberately dishonest or willful
         misconduct or, as provided in Article 12 of the Restated
         Articles of Incorporation of the Registrant, which involved an
         accounting for profits pursuant to Section 16(b) of the
         Securities Exchange Act of 1934.
                   Article 12 of the Restated Articles of Incorporation
         of the Registrant provides that the Registrant shall extend to<PAGE>







         its directors and executive officers the indemnification
         specified in subsections (1) and (2) and may also extend the
         additional indemnification authorized in subsection (7) and
         that it may extend to other officers, employees and agents such
         indemnification and additional indemnification.

                   Pursuant to directors' and officers' lability
         insurance policies, with total annual limits of $30,000,000,
         the Registrant's directors and officers are insured, subject to
         the limits, retention, exceptions and other terms and
         conditions of such policy, against liability for any actual or
         alleged error, misstatement, misleading statement, act or
         omission, or neglect or breach of duty by the directors or
         officers of the Registrant, individually or collectively, or
         any matter claimed against them solely by reason of their being
         directors or officers of the Registrant.


         ITEM 21.  EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

                   (a)  EXHIBITS.  See Exhibit Index.

                   (b)  FINANCIAL STATEMENT SCHEDULES.  Not Applicable.

                   (c)  REPORT, OPINION OR APPRAISAL.  Not Applicable.

         ITEM 22.  UNDERTAKINGS

              (a)  Insofar as indemnification for liabilities arising
         under the Securities Act of 1933 may be permitted to directors,
         officers and controlling persons of the Registrant pursuant to
         the foregoing provisions, or otherwise, the Registrant has been
         advised that in the opinion of the Securities and Exchange
         Commission such indemnification is against public policy as
         expressed in the Act and is, therefore, unenforceable.  In the
         event that a claim for indemnification against such liabilities
         (other than the payment by the Registrant of expenses incurred
         or paid by a director, officer or controlling person of the
         Registrant in the successful defense of any action, suit or
         proceeding) is asserted by such director, officer or
         controlling person in connection with the securities being
         registered, the Registrant will, unless in the opinion of its
         counsel the matter has been settled by controlling precedent,
         submit to a court of appropriate jurisdiction the question
         whether such indemnification by it is against public policy as
         expressed in the Act and will be governed by the final
         adjudication of such issue.

              (b)  The undersigned Registrant hereby undertakes that,
         for purposes of determining any liability under the Securities
         Act of 1933, each filing of the Registrant's annual report
         pursuant to Section 13(a) or Section 15(d) of the Securities
         Exchange Act of 1934 (and, where applicable, each filing of an
         employee benefit plan's annual report pursuant to Section 15(d) 

                                       II-2<PAGE>







         of the Securities Exchange Act of 1934) that is incorporated by
         reference in the Registration Statement shall be deemed to be a
         new registration statement relating to the securities offered
         therein, and the offering of such securities at that time shall
         be deemed to be the initial bona fide offering thereof.

              (c)  The undersigned Registrant hereby undertakes as
         follows:  that prior to any public reoffering of the securities
         registered hereunder through use of a prospectus which is a
         part of this Registration Statement, by any person or party who
         is deemed to be an underwriter within the meaning of Rule
         145(c), the issuer undertakes that such reoffering prospectus
         will contain the information called for by the applicable
         registration form with respect to reofferings by persons who
         may be deemed underwriters, in addition to the information
         called for by the other Items of the applicable form.

              (d)  The Registrant undertakes that every prospectus:  (i)
         that is filed pursuant to paragraph (c) immediately preceding,
         or (ii) that purports to meet the requirements of Section
         10(a)(3) of the Act and is used in connection with an offering
         of securities subject to Rule 415, will be filed as a part of
         an amendment to the Registration Statement and will not be used
         until such amendment is effective, and that, for purposes of
         determining any liability under the Securities Act of 1933,
         each such post-effective amendment shall be deemed to be a new
         registration statement relating to the securities offering
         therein, and the offering of such securities at that time shall
         be deemed to be the initial bona fide offering thereof.

              (e)  The undersigned Registrant hereby undertakes to
         respond to requests for information that is incorporated by
         reference into the prospectus pursuant to Item 4, 10(b), 11 or
         13 of this Form, within one business day of receipt of such
         request, and to send the incorporated documents by first class
         mail or other equally prompt means.  This includes information
         contained in the documents filed subsequent to the effective
         date of the Registration Statement through the date of
         responding to the request.

              (f)  The undersigned Registrant hereby undertakes to
         supply by means of a post-effective amendment all information
         concerning a transaction, and the company being acquired 
         involved therein, that was not the subject of and included in
         the Registration Statement when it became effective.

              (g)  The undersigned Registrant hereby undertakes:

              1.   To file during any period in which offers and sales
              are being made, a post-effective amendment to this
              Registration Statement:

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


                                       II-3<PAGE>







                   (ii)  To reflect in the prospectus any facts or
                   events arising after the effective date of the
                   Registration Statement (or the most recent post-
                   effective amendment thereof) which, individually or
                   in the aggregate, represent a fundamental change in
                   the information set forth in the Registration
                   Statement; and

                   (iii)  To include any material information with
                   respect to the plan of distribution not previously
                   disclosed in the Registration Statement or any
                   material change to such information in the
                   Registration Statement.

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

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















                                       II-4<PAGE>







                                    SIGNATURES

                   Pursuant to the requirements of the Securities Act of
         1933, the Registrant has duly caused this Registration
         Statement to be signed on its behalf by the undersigned,
         thereunto duly authorized, in the City of St. Louis, State of
         Missouri, on October 23, 1995.


                                       MERCANTILE BANCORPORATION INC.


                                       By: /S/ THOMAS H. JACOBSEN      
                                       --------------------------------
                                          Thomas H. Jacobsen
                                          Chairman of the Board,
                                          President and Chief Executive
                                          Officer


                                POWER OF ATTORNEY

                   We, the undersigned officers and directors of
         Mercantile Bancorporation Inc., hereby severally and
         individually constitute and appoint Thomas H. Jacobsen and John
         H. Beirise, and each of them, the true and lawful attorneys and
         agents of each of us to execute in the name, place and stead of
         each of us (individually and in any capacity stated below) any
         and all amendments to this Registration Statement on Form S-4
         and all instruments necessary or advisable in connection
         therewith and to file the same with the Securities and Exchange
         Commission, each of said attorneys and agents to have the power
         to act with or without the others and to have full power and
         authority to do and perform in the name and on behalf of each
         of the undersigned every act whatsoever necessary or advisable
         to be done in the premises as fully and to all intents and
         purposes as any of the undersigned might or could do in person,
         and we hereby ratify and confirm our signatures as they may be
         signed by our said attorneys and agents or each of them to any
         and all such amendments and instruments.

                   Pursuant to the requirements of the Securities Act of
         1933, this Registration Statement has been signed by the
         following persons in the capacities and on the date indicated.

             Signature                    Title                Date

     /s/ Thomas H. Jacobsen       Chairman of the Board,       October 20, 1995
     Thomas H. Jacobsen           President, Chief Executive
     Principal Executive Officer  Officer and Director




                                           II-5<PAGE>







             Signature                    Title                Date

     /s/ John Q. Arnold           Senior Executive             October 20, 1995
     John Q. Arnold               Vice President and
     Principal Financial Officer  Chief Financial Officer

     /s/ Michael T. Normile       Senior Vice President --     October 20, 1995
     Michael T. Normile           Finance and Control
     Principal Accounting Officer 

     /s/ Richard P. Conerly       Director                     October 20, 1995
     Richard P. Conerly


     /s/ Harry M. Cornell, Jr.    Director                     October 20, 1995
     Harry M. Cornell, Jr.


     /s/ Earl K. Dille            Director                     October 20, 1995
     Earl K. Dille


     /s/ William A. Hall          Director                     October 20, 1995
     William A. Hall


     /s/ Thomas A. Hays           Director                     October 20, 1995
     Thomas A. Hays


     /s/ William G. Heckman       Director                     October 20, 1995
     William G. Heckman


     /s/ Charles H. Price II      Director                     October 20, 1995
     Charles H. Price II


     /s/ Harvey Saligman          Director                     October 20, 1995
     Harvey Saligman


     ________________             Director                     _______ __, 1995
     Craig D. Schnuck


     _______________              Director                     _______ __, 1995
     Robert L. Stark



                                           II-6<PAGE>







             Signature                    Title                Date


     /s/ Patrick T. Stokes        Director                     October 20, 1995
     Patrick T. Stokes


     /s/ Francis A. Stroble       Director                     October 20, 1995
     Francis A. Stroble

     ______________               Director                     _______ __, 1995
     John A. Wright


     /s/ Frank Lyon, Jr.          Director                     October 20, 1995
     Frank Lyon, Jr.
































                                       II-7<PAGE>







                                    EXHIBIT INDEX

         Exhibit
         Number                        Description                    Page

         2.1        Agreement and Plan of Reorganization dated as
                    of August 4, 1995 by and among MBI and Hawk-
                    eye.

         2.2        Stock Option Agreement, dated August 4, 1995,
                    between MBI and Hawkeye.

         3.1        MBI's Restated Articles of Incorporation, as 
                    amended and currently in effect, filed as 
                    Exhibit 3(i) to MBI's Quarterly Report on 
                    Form 10-Q for the quarter ended June 30, 1994
                    (File No. 1-11792), are incorporated herein
                    by reference.

         3.2        MBI's By-Laws, as amended and currently in 
                    effect, filed as Exhibit 3.2 to MBI's Regis-
                    tration Statement No. 33-57489, are incorpo-
                    rated herein by reference.

         4.1        Form of Indenture Regarding Subordinated Se-
                    curities between MBI and The First National 
                    Bank of Chicago, Trustee, filed as Exhibit 4-
                    1 to MBI's Report on Form 8-K dated September
                    24, 1992 (File No. 1-11792), is incorporated 
                    herein by reference.


         4.2        Rights Agreement dated as of May 23, 1988 
                    between MBI and Mercantile Bank of St. Louis 
                    National Association, as Rights Agent (in-
                    cluding as exhibits thereto the form of Cer-
                    tificate of Designation, Preferences and 
                    Rights of Series A Junior Participating Pre-
                    ferred Stock and the form of Right Certifi-
                    cate), filed on May 24, 1988 as Exhibits 1 
                    and 2 to MBI's Registration Statement on Form
                    8-A (File No. 1-11792), is incorporated 
                    herein by reference.

         4.3        Certificate of Designation, Preferences, and 
                    Relative Rights, Qualifications, Limitations 
                    and Restrictions of the Series B-1 Preferred 
                    Stock of MBI, filed as Exhibit 4-1 to MBI's 
                    Report on Form 10-Q for the quarter ended 
                    March 31, 1995 (File No. 1-11792), is incor-
                    porated herein by reference.


                                        II-8<PAGE>







         Exhibit
         Number                        Description                    Page


         4.4        Certificate of Designation, Preferences, and 
                    Relative Rights, Qualifications, Limitations 
                    and Restrictions of the Series B-2 Preferred 
                    Stock of MBI, filed as Exhibit 4-2 to MBI's 
                    Report on Form 10-Q for the quarter ended 
                    March 31, 1995 (File No. 1-11792), is incor
                    porated herein by reference.

         5          Opinion of Jon W. Bilstrom as to the legality
                    of the securities being issued.

         8.1        Opinion of Wachtell, Lipton, Rosen & Katz as 
                    to certain tax matters in the Merger.

         8.2        Opinion of Baird, Holm, McEachen, Pedersen, 
                    Hamann & Strasheim as to certain tax matters 
                    in the Merger.

         23.1       Consent of KPMG Peat Marwick LLP with regard 
                    to use of its report on MBI's financial 
                    statements.

         23.2       Consent of Deloitte & Touche LLP with regard 
                    to the use of its report on Hawkeye's finan-
                    cial statements.

         23.3       Consent of Jon W. Bilstrom (included in Ex-
                    hibit 5).

         23.4       Consent of Wachtell, Lipton, Rosen & Katz 
                    (included in Exhibit 8.1).

         23.5       Consent of Baird, Holm, McEachen, Pedersen, 
                    Hamann & Strasheim (included in Exhibit 8.2).

         23.6       Consent of Donaldson, Lufkin & Jenrette Secu-
                    rities Corporation. 

         24.1       Power of Attorney (included on signature 
                    page).

         99.9       Form of Support Agreement dated as of August 
                    4, 1995 by and between MBI and the directors 
                    of Hawkeye.



                                        II-9













                                                                      
                                                                      






                      AGREEMENT AND PLAN OF REORGANIZATION


                                    between


                        MERCANTILE BANCORPORATION INC.,

                                   as Buyer,


                                      and


                            HAWKEYE BANCORPORATION,

                                   as Seller



                                                      




                              Dated August 4, 1995



                                                                      
                                                                      <PAGE>







                      AGREEMENT AND PLAN OF REORGANIZATION


                   This AGREEMENT AND PLAN OF REORGANIZATION (this

         "Agreement") is made and entered into on August 4, 1995 by

         and between MERCANTILE BANCORPORATION INC., a Missouri

         corporation ("Buyer"), and HAWKEYE BANCORPORATION, an Iowa

         corporation (together with its predecessors, "Seller").


                              W I T N E S S E T H:


                   WHEREAS, Buyer is a registered bank holding company

         under the Bank Holding Company Act of 1956, as amended (the

         "Holding Company Act"); and


                   WHEREAS, Seller is a registered bank holding

         company under the Holding Company Act; and 


                   WHEREAS, the Board of Directors of Seller and the

         Executive Committee of the Board of Directors of Buyer have

         approved the merger (the "Merger") of Seller with and into a

         wholly owned subsidiary of Buyer organized or to be organized

         under the laws of Iowa ("Merger Sub") pursuant to the terms and

         subject to the conditions of this Agreement; and


                   WHEREAS, as a condition to, and immediately after

         the execution of this Agreement, Buyer and each director of

         Seller will enter into Support Agreements (the "Support

         Agreements") in the form attached hereto as Exhibit A; and

                                      -1-<PAGE>








                   WHEREAS, as a condition to, and immediately prior to

         execution of this Agreement, Buyer and Seller will enter into a

         stock option agreement (the "Stock Option Agreement") in the

         form attached hereto as Exhibit B; and


                   WHEREAS, the parties desire to provide for certain

         undertakings, conditions, representations, warranties and

         covenants in connection with the transactions contemplated by

         this Agreement.


                   NOW THEREFORE, in consideration of the premises and

         the representations, warranties and agreements herein

         contained, the parties agree as follows:


                                    ARTICLE I

                                    THE MERGER


                   1.01.  The Merger.  (a)  Subject to the terms and

         conditions of this Agreement, Seller shall be merged with and

         into Merger Sub in accordance with the Iowa Business

         Corporation Act (the "Iowa Act") and the separate corporate

         existence of Seller shall cease.  Merger Sub shall be the

         surviving corporation of the Merger (sometimes referred to

         herein as the "Surviving Corporation") and shall continue to

         be governed by the laws of the State of Iowa.

                                  -2-<PAGE>







                   1.02.  Closing.  The closing (the "Closing") of the

         Merger shall take place at 10:00 a.m., local time, on the

         date that the Effective Time (as defined in Section 1.03)

         occurs, or at such other time, and at such place, as Buyer

         and Seller shall agree (the "Closing Date").


                   1.03.  Effective Time.  The Merger shall become

         effective on the date and at the time (the "Effective Time")

         on which appropriate documents in respect of the Merger are

         filed with the Secretary of State of the State of Iowa in

         such form as required by, and in accordance with, the

         relevant provisions of the Iowa Act.  Subject to the terms

         and conditions of this Agreement, the Effective Time shall

         occur on such date as Buyer shall notify Seller in writing

         (such notice to be at least five business days in advance of

         the Effective Time) but (i) not earlier than the satisfaction

         of all conditions set forth in Section 6.01(a) and 6.01(b)

         (the "Approval Date") and (ii) subject to clause (i), not

         later than the first business day of the first full calendar

         month commencing at least five business days after the

         Approval Date.  As soon as practicable following the

         Effective Time, Buyer and Seller shall cause a certificate or

         plan of merger reflecting the terms of this Agreement to be

         delivered for filing and recordation with other appropriate

         state or local officials in the State of Iowa in accordance

         with the Iowa Act.

                                  -3-<PAGE>








                   1.04.  Additional Actions.  If, at any time after

         the Effective Time, Buyer or the Surviving Corporation shall

         consider or be advised that any further deeds, assignments or

         assurances or any other acts are necessary or desirable to

         (b) vest, perfect or confirm, of record or otherwise, in the

         Surviving Corporation its right, title or interest in, to or

         under any of the rights, properties or assets of Seller or

         Merger Sub or (c) otherwise carry out the purposes of this

         Agreement, Seller and Merger Sub and each of their respective

         officers and directors, shall be deemed to have granted to

         the Surviving Corporation an irrevocable power of attorney to

         execute and deliver all such deeds, assignments or assurances

         and to do all acts necessary or desirable to vest, perfect or

         confirm title and possession to such rights, properties or

         assets in the Surviving Corporation and otherwise to carry

         out the purposes of this Agreement, and the officers and

         directors of the Surviving Corporation are authorized in the

         name of Seller or otherwise to take any and all such action.


                   1.05.  Articles of Incorporation and Bylaws.  The

         Articles of Incorporation and Bylaws of Merger Sub in effect

         immediately prior to the Effective Time shall be the Articles

         of Incorporation and Bylaws of the Surviving Corporation

         following the Merger until otherwise amended or repealed. 

                                  -4-<PAGE>







                   1.06.  Boards of Directors and Officers.  At the

         Effective Time, the directors and officers of Merger Sub

         immediately prior to the Effective Time shall be directors

         and officers, respectively, of the Surviving Corporation

         following the Merger; such directors and officers shall hold

         office in accordance with the Surviving Corporation's Bylaws

         and applicable law.


                   1.07.  Conversion of Securities.  At the Effective

         Time, by virtue of the Merger and without any action on the

         part of Buyer, Seller or the holder of any of the following

         securities:


                    (i)   Each share of the common stock, par value

         $.01 per share, of Merger Sub that is issued and outstanding

         immediately prior to the Effective Time shall remain

         outstanding and shall be unchanged after the Merger and shall

         thereafter constitute all of the issued and outstanding

         capital stock of the Surviving Corporation; and


                   (ii)  Each share of the common stock, without par

         value ("Seller Common Stock"), of Seller issued and

         outstanding immediately prior to the Effective Time, other

         than any Dissenting Shares (as defined in Section 1.09),

         shall cease to be outstanding and shall be converted into and

         become the right to receive 0.585 (the "Exchange Ratio") of a

         share of common stock, par value $5.00 per share ("Buyer 

                                  -5-<PAGE>







         Common Stock"), of Buyer; provided, however, that any shares

         of Seller Common Stock held by Seller or any of its wholly

         owned Subsidiaries (as defined in Rule 1-02 of Regulation S-X

         promulgated by the Securities and Exchange Commission (the

         "SEC")), or Buyer or any of its wholly owned Subsidiaries, in

         each case other than in a fiduciary capacity or as a result

         of debts previously contracted, shall be cancelled and shall

         not represent capital stock of the Surviving Corporation and

         shall not be exchanged for shares of Buyer Common Stock.


                   1.08.  Exchange Procedures.  (a)  As soon as

         practicable after the Effective Time, holders of record of

         certificates formerly representing shares of Seller Common

         Stock (the "Certificates") shall be instructed to tender such

         Certificates to Buyer pursuant to a letter of transmittal

         that Buyer shall deliver or cause to be delivered to such

         holders.  Such letters of transmittal shall specify that risk

         of loss and title to Certificates shall pass only upon

         delivery of such Certificates to Buyer. 


                   (b)  Subject to Section 1.10, after the Effective

         Time, each previous holder of a Certificate that surrenders

         such Certificate to the Buyer or, at the election of Buyer,

         an exchange agent designated by Buyer (the "Exchange Agent")

         will, upon acceptance thereof by Buyer or the Exchange Agent,

         be entitled to a certificate or certificates representing the 

                                  -6-<PAGE>







         number of full shares of Buyer Common Stock into which the

         Certificate so surrendered shall have been converted pursuant

         to this Agreement and any distribution theretofore declared

         and not yet paid with respect to such shares of Buyer Common

         Stock, without interest.  


                   (c)  Buyer or, at the election of Buyer, the

         Exchange Agent shall accept Certificates upon compliance with

         such reasonable terms and conditions as Buyer or the Exchange

         Agent may impose to effect an orderly exchange thereof in

         accordance with customary exchange practices.   Certificates

         shall be appropriately endorsed or accompanied by such

         instruments of transfer as Buyer or the Exchange Agent may

         require.


                   (d)  Each outstanding Certificate shall until duly

         surrendered to Buyer or the Exchange Agent be deemed to

         evidence ownership of the consideration into which the stock

         previously represented by such Certificate shall have been

         converted pursuant to this Agreement.  


                   (e)  After the Effective Time, holders of

         Certificates shall cease to have rights with respect to the

         stock previously represented by such Certificates, and their

         sole rights shall be to exchange such Certificates for the

         consideration provided for in this Agreement.  After the

         Effective Time, there shall be no further transfer on the

         records

                                  -7-<PAGE>







         of Seller of Certificates, and if such Certificates are

         presented to Seller for transfer, they shall be cancelled

         against delivery of the consideration provided therefor in

         this Agreement.  Buyer shall not be obligated to deliver the

         consideration to which any former holder of Seller Common

         Stock is entitled as a result of the Merger until such holder

         surrenders the Certificates as provided herein.  No dividends

         declared will be remitted to any person entitled to receive

         Buyer Common Stock under this Agreement until such person

         surrenders the Certificate representing the right to receive

         such Buyer Common Stock, at which time such dividends shall

         be remitted to such person, without interest and less any

         taxes that may have been imposed thereon.  Certificates

         surrendered for exchange by any person constituting an

         "affiliate" of Seller for purposes of Rule 145 of the

         Securities Act of 1933, as amended (together with the rules

         and regulations thereunder, the "Securities Act"), shall not

         be exchanged for certificates representing Buyer Common Stock

         until Buyer has received a written agreement from such person

         in the form attached as Exhibit C.  Neither the Exchange

         Agent nor any party to this Agreement nor any affiliate

         thereof shall be liable to any holder of stock represented by

         any Certificate for any consideration paid to a public

         official pursuant to applicable abandoned property, escheat

         or similar laws.  Buyer and the Exchange Agent shall be

         entitled to rely upon 

                                  -8-<PAGE>







         the stock transfer books of Seller to establish the identity

         of those persons entitled to receive consideration specified

         in this Agreement, which books shall be conclusive with

         respect thereto.  In the event of a dispute with respect to

         ownership of stock represented by any Certificate, Buyer and

         the Exchange Agent shall be entitled to deposit any

         consideration represented thereby in escrow with an

         independent third party and thereafter be relieved with

         respect to any claims thereto.


                   1.09.  Dissenting Shares.  (a)  "Dissenting Shares"

         means any shares held by any holder who becomes entitled to

         payment of the fair value of such shares under the Iowa Act.

         Any holders of Dissenting Shares shall be entitled to payment

         for such shares only to the extent permitted by and in

         accordance with the provisions of the Iowa Act; provided,

         however, that if, in accordance with the Iowa Act, any holder

         of Dissenting Shares shall forfeit such right to payment of

         the fair value of such shares, such shares shall thereupon be

         deemed to have been converted into and to have become

         exchangeable for, as of the Effective Time, the right to

         receive the consideration provided in this Article I.


                   (b)  Seller shall give Buyer (i) prompt notice of

         any written objections to the Merger and any written demands

         for the payment of the fair value of any shares, withdrawals 

                                  -9-<PAGE>







         of such demands, and any other instruments served pursuant to

         the Iowa Act received by Seller and (ii) the opportunity to

         direct all negotiations and proceedings with respect to such

         demands under the Iowa Act.  Seller shall not voluntarily

         make any payment with respect to any demands for payment of

         fair value and shall not, except with the prior written

         consent of Buyer, settle or offer to settle any such demands.


                   1.10.  No Fractional Shares.  Notwithstanding any

         other provision of this Agreement, neither certificates nor

         scrip for fractional shares of Buyer Common Stock shall be

         issued in the Merger.  Each holder who otherwise would have

         been entitled to a fraction of a share of Buyer Common Stock

         shall receive in lieu thereof cash (without interest) in an

         amount determined by multiplying the fractional share

         interest to which such holder would otherwise be entitled by

         the Closing Price per share of Buyer Common Stock on the last

         business day preceding the Effective Time.  With respect to a

         share of stock, "Closing Price" shall mean:  the closing

         price as reported on the Consolidated Tape (as reported in

         The Wall Street Journal or in the absence thereof, by any

         other authoritative source).  No such holder shall be

         entitled to dividends, voting rights or any other rights in

         respect of any fractional share.

                                  -10-<PAGE>







                   1.11.  Anti-Dilution Adjustments.  If prior to the

         Effective Time Buyer shall declare a stock dividend or make

         distributions upon or subdivide, split up, reclassify or

         combine Buyer Common Stock or declare a dividend or make a

         distribution on Buyer Common Stock in any security

         convertible into Buyer Common Stock, appropriate adjustment

         or adjustments will be made to the Exchange Ratio.


                   1.12.  Reservation of Right to Revise Transaction.

         Buyer may at any time change the method of effecting the

         acquisition of Seller or Seller's Subsidiaries by Buyer

         (including without limitation the provisions of this Article I)

         if and to the extent it deems such change to be desirable,

         including without limitation to provide for a merger of Seller

         directly into Buyer, in which Buyer is the surviving

         corporation, provided, however, that no such change shall (A)

         alter or change the amount or kind of consideration to be

         issued to holders of Seller Common Stock as provided for in

         this Agreement (the "Merger Consideration"), (B) adversely

         affect the tax treatment to Seller's stockholders as a result

         of receiving the Merger Consideration or (C) materially impede

         or delay receipt of any approval referred to in Section 6.01(b)

         or the consummation of the transactions contemplated by this

         Agreement.

                                  -11-<PAGE>







                                    ARTICLE II

               REPRESENTATIONS, WARRANTIES AND COVENANTS OF SELLER


                   Seller represents and warrants to and covenants

         with Buyer as follows:


                   2.01.  Organization and Authority.  Seller is a

         corporation duly organized, validly existing and in good

         standing under the laws of the State of Iowa is duly

         qualified to do business and is in good standing in all

         jurisdictions where its ownership or leasing of property or

         the conduct of its business requires it to be so qualified

         and has corporate power and authority to own its properties

         and assets and to carry on its business as it is now being

         conducted.  Seller is registered as a bank holding company

         with the Board of Governors of the Federal Reserve System

         (the "Board") under the Holding Company Act.  True and

         complete copies of the Restated Articles of Incorporation and

         the Bylaws of Seller and, to the extent requested in writing

         by Buyer, of the Articles of Incorporation and Bylaws of the

         Seller Subsidiaries (as defined in Section 2.02), each as in

         effect on the date of this Agreement, have been provided to

         Buyer.


                   2.02.  Subsidiaries.  Schedule 2.02 sets forth,

         among other things, a complete and correct list of all of 

                                  -12-<PAGE>







         Seller's Subsidiaries (each a "Seller Subsidiary" and

         collectively the "Seller Subsidiaries"), all outstanding

         Equity Securities of each of which, except as set forth on

         Schedule 2.02, are owned directly or indirectly by Seller.

         "Equity Securities" of an issuer means capital stock or other

         equity securities of such issuer, options, warrants, scrip,

         rights to subscribe to, calls or commitments of any character

         whatsoever relating to, or securities or rights convertible

         into, shares of any capital stock or other Equity Securities

         of such issuer, or contracts, commitments, understandings or

         arrangements by which such issuer is or may become bound to

         issue additional shares of its capital stock or other Equity

         Securities of such issuer, or options, warrants, scrip or

         rights to purchase, acquire, subscribe to, calls on or

         commitments for, or stock appreciation or similar rights in

         respect of, any shares of its capital stock or other Equity

         Securities.  Except as set forth on Schedule 2.02, all of the

         outstanding shares of capital stock of the Seller

         Subsidiaries are validly issued, fully paid and

         nonassessable, and those shares owned by Seller are owned

         free and clear of any lien, claim, charge, option,

         encumbrance, agreement, mortgage, pledge, security interest

         or restriction (a "Lien") with respect thereto.  Each of the

         Seller Subsidiaries is a corporation or association duly

         incorporated or organized, validly existing, and in good

         standing under the laws of its 

                                  -13-<PAGE>







         jurisdiction of incorporation or organization, and has

         corporate power and authority to own or lease its properties

         and assets and to carry on its business as it is now being

         conducted.  Each of the Seller Subsidiaries is duly qualified

         to do business in each jurisdiction where its ownership or

         leasing of property or the conduct of its business requires

         it so to be qualified, except where the failure to so qualify

         would not have a material adverse effect on the financial

         condition, results of operations or business (collectively,

         the "Condition") of Seller and its Subsidiaries, taken as a

         whole.  Except as set forth on Schedule 2.02, Seller does not

         own beneficially, directly or indirectly, five percent or

         more of any shares of any class of Equity Securities or

         similar interests of any corporation, bank, business trust,

         association or similar organization.  All of Seller's bank

         Subsidiaries (the "Banks") are either state banking

         associations chartered under the laws of the State of Iowa or

         national banking associations chartered by the Office of the

         Comptroller of the Currency.  The deposits of each of the

         Banks are insured by the Bank Insurance Fund ("BIF") or, to

         the extent transferred to a Bank by the Resolution Trust

         Corporation, by the Savings Association Insurance Fund, of

         the Federal Deposit Insurance Corporation (the "FDIC").  The

         aggregate "adjusted attributable deposit amount" (as defined

         in 12 U.S.C. Section 1815) of the Banks, as of June 30, 1995,

         is 

                                  -14-<PAGE>







         $54,866,000.  The Banks identified as such on Schedule 2.02

         are members in good standing of the Federal Reserve System.

         Except as set forth on Schedule 2.02, neither Seller nor any

         Seller Subsidiary holds any interest in a partnership or

         joint venture of any kind.


                   2.03.  Capitalization.  The authorized capital

         stock of Seller consists of (i) 200,000,000 shares of Seller

         Common Stock, of which, as of June 30, 1995, 13,461,373

         shares were issued and outstanding, (ii) 200,000,000 shares

         of Preference Stock, without par value, of which no shares

         are issued and outstanding, (iii) 5,000,000 shares of

         Preferred Stock, par value $1.00 per share, of which no

         shares are issued and outstanding.  As of June 30, 1995,

         Seller had reserved 208,630 shares of Seller Common Stock for

         issuance under Seller's stock option and incentive plans, a

         list of which is set forth on Schedule 2.03 (the "Seller

         Stock Plans"), pursuant to which options ("Seller Stock

         Options") covering 208,630 shares of Seller Common Stock and

         65,000 stock appreciation rights were outstanding as of June

         30, 1995.  Since June 30, 1995, no Equity Securities of

         Seller have been issued other than shares of Seller Common

         Stock which may have been issued upon the exercise of Seller

         Employee Stock Options.  Except as set forth above, there are

         no other Equity Securities of Seller outstanding.  All of the

         issued and outstanding shares of Seller Common Stock are 

                                  -15-<PAGE>







         validly issued, fully paid, and nonassessable, and have not

         been issued in violation of any preemptive right of any

         stockholder of Seller.  Seller maintains no dividend

         reinvestment or similar plan.


                   2.04.  Authorization.  (a)  Seller has the

         corporate power and authority to enter into this Agreement

         and, subject to the approval of this Agreement by the

         stockholders of Seller, to carry out its obligations

         hereunder.  The only stockholder vote required for Seller to

         approve this Agreement is the affirmative vote of the holders

         of at least a majority of the votes entitled to be cast on

         the Agreement by the holders of shares of Seller Common

         Stock.  The execution, delivery and performance of this

         Agreement by Seller and the consummation by Seller of the

         transactions contemplated hereby have been duly authorized by

         the Board of Directors of Seller.  Subject to approval by the

         stockholders of Seller, this Agreement is a valid and binding

         obligation of Seller enforceable against Seller in accordance

         with its terms.


                   (b)  Except as set forth on Schedule 2.04B, neither

         the execution nor delivery nor performance by Seller of this

         Agreement, nor the consummation by Seller of the transactions

         contemplated hereby, nor compliance by Seller with any of the

         provisions hereof, will (i) violate, conflict with, or result

         in a breach of any provisions of, or constitute a default (or 

                                  -16-<PAGE>







         an event which, with notice or lapse of time or both, would

         constitute a default) under, or result in the termination of,

         or accelerate the performance required by, or result in a

         right of termination or acceleration of, or result in the

         creation of, any Lien upon any of the material properties or

         assets of Seller or any Seller Subsidiary under any of the

         terms, conditions or provisions of (x) its articles or

         certificate of incorporation or bylaws or (y) any material

         note, bond, mortgage, indenture, deed of trust, license,

         lease, agreement or other instrument or obligation to which

         Seller or any Seller Subsidiary is a party or by which it may

         be bound, or to which Seller or any Seller Subsidiary or any

         of the material properties or assets of Seller or any Seller

         Subsidiary may be subject, or (ii) subject to compliance with

         the statutes and regulations referred to in paragraph (c) of

         this Section 2.04, to the best knowledge of Seller, violate

         any judgment, ruling, order, writ, injunction, decree,

         statute, rule or regulation applicable to Seller or any

         Seller Subsidiary or any of their respective material

         properties or assets.


                   (c)  Other than in connection or in compliance with

         the provisions of the Iowa Act, the Securities Act, the

         Securities Exchange Act of 1934 and the rules and regulations

         thereunder (the "Exchange Act"), the securities or blue sky

         laws of the various states or filings, consents, reviews, 

                                  -17-<PAGE>







         authorizations, approvals or exemptions required under the

         Holding Company Act, and the Hart-Scott-Rodino Antitrust

         Improvements Act of 1976 (the "HSR Act"), or any required

         approvals of or filings with the Superintendant of the

         Banking Division of the Commerce Department of the State of

         Iowa (the "State Bank Regulator"), no notice to, filing with,

         exemption or review by, or authorization, consent or approval

         of, any public body or authority is necessary for the

         consummation by Seller of the transactions contemplated by

         this Agreement.


                   2.05.  Seller Financial Statements.  The

         consolidated and parent-company only balance sheets of Seller

         and its Subsidiaries as of December 31, 1994, 1993 and 1992

         and related consolidated statements of income, cash flows and

         changes in stockholders' equity for each of the three years

         in the three-year period ended December 31, 1994, together

         with the notes thereto, audited by Deloitte & Touche LLP and

         included in an annual report on Form 10-K as filed with the

         SEC, and the unaudited consolidated balance sheets of Seller

         and its Subsidiaries as of March 31 and June 30, 1995 and the

         related unaudited consolidated statements of income and cash

         flows for the periods then ended included in quarterly

         reports on Form 10-Q (each a "Seller Form 10-Q") as filed

         with the SEC (collectively, the "Seller Financial

         Statements"), have been prepared in accordance with generally

         accepted accounting principles applied on a consistent basis

         ("GAAP"), 

                                  -18-<PAGE>







         present fairly the consolidated financial position of Seller

         and its Subsidiaries at the dates and the consolidated

         results of operations, cash flows and changes in

         stockholders' equity of Seller and its Subsidiaries for the

         periods stated therein and are derived from the books and

         records of Seller and its Subsidiaries, which are complete

         and accurate in all material respects and have been

         maintained in all material respects in accordance with

         applicable laws and regulations.  Neither Seller nor any of

         its Subsidiaries has any material contingent liabilities that

         are not described in the financial statements described

         above.  The Seller Financial Statements are set forth on

         Schedule 2.05.


                   2.06.  Seller Reports.  Since January 1, 1992, each

         of Seller and the Seller Subsidiaries has filed all material

         reports, registrations and statements, together with any

         required material amendments thereto, that it was required to

         file with (i) the SEC, including, but not limited to, Forms

         10-K, Forms 10-Q, Forms 8-K and proxy statements, (ii) the

         Board, (iii) the FDIC, (iv) the State Bank Regulator, and (v)

         any other federal, state, municipal, local or foreign

         government, securities, banking, savings and loan, insurance

         and other governmental or regulatory authority and the

         agencies and staffs thereof (the entities in the foregoing

         clauses (i) through (v) being referred to herein collectively

         as the "Regulatory Authorities" and individually as a

         "Regulatory 

                                  -19-<PAGE>







         Authority").  All such reports and statements filed with any

         such Regulatory Authority are collectively referred to herein

         as the "Seller Reports."  As of its respective date, each

         Seller Report complied in all material respects with all the

         rules and regulations promulgated by the applicable

         Regulatory Authority and did not contain any untrue statement

         of a material fact or omit to state a material fact required

         to be stated therein or necessary in order to make the

         statements therein, in light of the circumstances under which

         they were made, not misleading.


                   2.07.  Properties and Leases.  Except as may be

         reflected in the Seller Financial Statements, except for any

         Lien for current taxes not yet delinquent and except with

         respect to assets classified as real estate owned, Seller and

         its Subsidiaries have good title free and clear of any

         material Lien to all the real and personal property reflected

         in Seller's consolidated balance sheet as of June 30, 1995

         included in the most recent Seller Form 10-Q and, in each

         case, all real and personal property acquired since such

         date, except such real and personal property as has been

         disposed of in the ordinary course of business.  All leases

         material to Seller or any Seller Subsidiary pursuant to which

         Seller or any Seller Subsidiary, as lessee, leases real or

         personal property, are valid and effective in accordance with

         their respective terms, and there is not, under any of such

         leases, 

                                  -20-<PAGE>







         any material existing default by Seller or any Seller

         Subsidiary or any event which, with notice or lapse of time

         or both, would constitute such a material default.

         Substantially all of Seller's and Seller Subsidiaries'

         buildings, structures and equipment in regular use have been

         well maintained and are in good and serviceable condition,

         normal wear and tear excepted.


                   2.08.  Taxes.  Except as previously disclosed,

         Seller and each Seller Subsidiary have timely filed or will

         timely (including extensions) file all material tax returns

         required to be filed at or prior to the Closing Date ("Seller

         Returns").  Each of Seller and its Subsidiaries has paid, or

         set up adequate reserves on the Seller Financial Statements

         for the payment of, all taxes required to be paid in respect

         of the periods covered by such returns and has set up

         adequate reserves on the most recent financial statements

         Seller has filed under the Exchange Act for the payment of

         all taxes anticipated to be payable in respect of all periods

         up to and including the latest period covered by such

         financial statements.  Neither Seller nor any Seller

         Subsidiary will have any liability material to the Condition

         of Seller and the Seller Subsidiaries, taken as a whole, for

         any such taxes in excess of the amounts so paid or reserves

         so established and no material deficiencies for any tax,

         assessment 

                                  -21-<PAGE>







         or governmental charge have been proposed, asserted or

         assessed (tentatively or definitely) against any of Seller or

         any Seller Subsidiary which would not be covered by existing

         reserves.  Neither Seller nor any Seller Subsidiary is

         delinquent in the payment of any material tax, assessment or

         governmental charge, nor, except as previously disclosed, has

         it requested any extension of time within which to file any

         tax returns in respect of any fiscal year which have not

         since been filed and no requests for waivers of the time to

         assess any tax are pending.  The federal and state income tax

         returns of Seller and the Seller Subsidiaries have been

         audited and settled by the Internal Revenue Service (the

         "IRS") or appropriate state tax authorities for all periods

         ended through December 31, 1981.  There is no deficiency or

         refund litigation or matter in controversy with respect to

         Seller Returns.  Neither Seller nor any Seller Subsidiary has

         extended or waived any statute of limitations on the

         assessment of any tax due that is currently in effect.


                   2.09.  Material Adverse Change.  Since December 31,

         1994, there has been no material adverse change in the

         Condition of Seller and its Subsidiaries, taken as a whole,

         except as may have resulted or may result from changes to

         laws and regulations or changes in economic conditions

         applicable to banking institutions generally or in general

         levels of interest rates affecting banking institutions

         generally.

                                  -22-<PAGE>








                   2.10.  Commitments and Contracts.  (a)  Except as set

         forth on Schedule 2.10A, neither Seller nor any Seller

         Subsidiary is a party or subject to any of the following

         (whether written or oral, express or implied):


                           (i)  any material agreement, arrangement or

                   commitment (A) not made in the ordinary course of

                   business or (B) pursuant to which Seller or any of

                   its Subsidiaries is or may become obligated to

                   invest in or contribute capital to any Seller

                   Subsidiary;


                          (ii)  any agreement, indenture or other

                   instrument not disclosed in the Seller Financial

                   Statements relating to the borrowing of money by

                   Seller or any Seller Subsidiary or the guarantee by

                   Seller or any Seller Subsidiary of any such

                   obligation (other than trade payables or

                   instruments related to transactions entered into in

                   the ordinary course of business by any Seller

                   Subsidiary, such as deposits and Fed Funds

                   borrowings);


                         (iii)  any contract, agreement or

                   understanding with any labor union or collective

                   bargaining organization;

                                -23-<PAGE>







                          (iv)  any contract containing covenants

                   which limit the ability of Seller or any Seller

                   Subsidiary to compete in any line of business or

                   with any person or which involve any restriction of

                   the geographical area in which, or method by which,

                   Seller or any Seller Subsidiary may carry on its

                   business (other than as may be required by law or

                   any applicable Regulatory Authority); 


                           (v)  any other contract or agreement which

                   is a "material contract" within the meaning of Item

                   601(b)(10) of Regulation S-K promulgated by the

                   SEC; or


                          (vi)  any lease with annual rental payments

                   aggregating $250,000 or more.


                   (b)  Neither Seller nor any Seller Subsidiary is in

         violation of its charter documents or bylaws or in default

         under any material agreement, commitment, arrangement, lease,

         insurance policy, or other instrument, whether entered into in

         the ordinary course of business or otherwise and whether

         written or oral, and there has not occurred any event that,

         with the lapse of time or giving of notice or both, would

         constitute such a default, except, in all cases, where such

         default would not have a material adverse effect on the

         Condition of Seller and its Subsidiaries, taken as a whole.

                                  -24-<PAGE>








                   2.11.  Litigation and Other Proceedings.  Except as

         set forth on Schedule 2.11, neither Seller nor any Seller

         Subsidiary is a party to any pending or, to the best

         knowledge of Seller, threatened claim, action, suit,

         investigation or proceeding, or is subject to any order,

         judgment or decree, except for matters which, in the

         aggregate, will not have, or reasonably could not be expected

         to have, a material adverse effect on the Condition of Seller

         and its Subsidiaries, taken as a whole, or which purports or

         seeks to enjoin or restrain the transactions contemplated by

         this Agreement.  Without limiting the generality of the

         foregoing, there are no actions, suits, or proceedings

         pending or, to the best knowledge of Seller, threatened

         against Seller or any Seller Subsidiary or any of their

         respective officers or directors by any stockholder of Seller

         or any Seller Subsidiary (or any former stockholder of Seller

         or any Seller Subsidiary) or involving claims under the

         Securities Act, the Exchange Act, the Community Reinvestment

         Act of 1977, as amended, or the fair lending laws.


                   2.12.  Insurance.  Set forth on Schedule 2.12 is a

         list of all insurance policies maintained by or for the

         benefit of Seller or its Subsidiaries or their directors,

         officers, employees or agents.

                                  -25-<PAGE>







                   2.13.  Compliance with Laws.  (a)  Seller and each of

         its Subsidiaries have all permits, licenses, authorizations,

         orders and approvals of, and have made all filings,

         applications and registrations with, all Regulatory Authorities

         that are required in order to permit them to own or lease their

         properties and assets and to carry on their business as

         presently conducted and that are material to the business of

         Seller and its Subsidiaries; all such permits, licenses,

         certificates of authority, orders and approvals are in full

         force and effect and, to the best knowledge of Seller, no

         suspension or cancellation of any of them is threatened; and

         all such filings, applications and registrations are current.


                   (b)  Except for failures to comply or defaults

         which individually or in the aggregate would not have a

         material adverse effect on the Condition of Seller and its

         Subsidiaries, taken as a whole, (i)  each of Seller and its

         Subsidiaries has complied with all laws, regulations and

         orders (including without limitation zoning ordinances,

         building codes, the Employee Retirement Income Security Act

         of 1974, as amended ("ERISA"), and securities, tax,

         environmental, civil rights, and occupational health and

         safety laws and regulations and including without limitation

         in the case of any Seller Subsidiary that is a bank or

         savings association, banking organization, banking

         corporation or trust 

                                  -26-<PAGE>







         company, all statutes, rules, regulations and policy

         statements pertaining to the conduct of a banking, deposit-

         taking, lending or related business, or to the exercise of

         trust powers) and governing instruments applicable to them

         and to the conduct of their business, and (ii) neither Seller

         nor any Seller Subsidiary is in default under, and no event

         has occurred which, with the lapse of time or notice or both,

         could result in the default under, the terms of any judgment,

         order, writ, decree, permit, or license of any Regulatory

         Authority or court, whether federal, state, municipal, or

         local and whether at law or in equity.  Except for

         liabilities which individually or in the aggregate would not

         have a material adverse effect on the Condition of Seller and

         its Subsidiaries, taken as a whole, neither Seller nor any

         Seller Subsidiary is subject to or reasonably likely to incur

         a liability as a result of its ownership, operation, or use

         of any Property (as defined below) of Seller (whether

         directly or, to the best knowledge of Seller, as a

         consequence of such Property being part of the investment

         portfolio of Seller or any Seller Subsidiary) (A) that is

         contaminated by or contains any hazardous waste, toxic

         substance, or related materials, including without limitation

         asbestos, PCBs, pesticides, herbicides, and any other

         substance or waste that is hazardous to human health or the

         environment (collectively, a "Toxic Substance"), or (B) on

         which any Toxic Substance has 

                                  -27-<PAGE>







         been stored, disposed of, placed, or used in the construction

         thereof.  "Property" of a person shall include all property

         (real or personal, tangible or intangible) owned or

         controlled by such person, including without limitation

         property under foreclosure, property held by such person or

         any Subsidiary of such person in its capacity as a trustee

         and property in which any venture capital or similar unit of

         such person or any Subsidiary of such person has an interest.

         No claim, action, suit, or proceeding is pending against

         Seller or any Seller Subsidiary relating to Property of

         Seller before any court or other Regulatory Authority or

         arbitration tribunal relating to hazardous substances,

         pollution, or the environment, and there is no outstanding

         judgment, order, writ, injunction, decree, or award against

         or affecting Seller or any Seller Subsidiary with respect to

         the same.  Except for statutory or regulatory restrictions of

         general application, no Regulatory Authority has placed any

         restriction on the business of Seller or any Seller

         Subsidiary which reasonably could be expected to have a

         material adverse effect on the Condition of Seller and its

         Subsidiaries, taken as a whole.


                   (c)  From and after January 1, 1992, neither Seller

         nor any Seller Subsidiary has received any notification or

         communication which has not been resolved from any Regulatory

         Authority (i) asserting that any Seller or any Subsidiary of 

                                  -28-<PAGE>







         Seller, is not in substantial compliance with any of the

         statutes, regulations or ordinances that such Regulatory

         Authority enforces, except with respect to matters which (A)

         are set forth on Schedule 2.13(c) or in any writing previously

         furnished to Buyer or (B) reasonably could not be expected to

         have a material adverse effect on the Condition of Seller and

         its Subsidiaries, taken as a whole, (ii) threatening to revoke

         any license, franchise, permit or governmental authorization

         that is material to the Condition of Seller and its

         Subsidiaries, taken as a whole, including without limitation

         such company's status as an insured depositary institution

         under the Federal Deposit Insurance Act, or (iii) requiring or

         threatening to require Seller or any of its Subsidiaries, or

         indicating that Seller or any of its Subsidiaries may be

         required, to enter into a cease and desist order, agreement or

         memorandum of understanding or any other agreement restricting

         or limiting or purporting to direct, restrict or limit in any

         manner the operations of Seller or any of its Subsidiaries,

         including without limitation any restriction on the payment of

         dividends.  No such cease and desist order, agreement or

         memorandum of understanding or other agreement is currently in

         effect.


                   (d)  Neither Seller nor any Seller Subsidiary is

         required by Section 32 of the Federal Deposit Insurance Act

         to give prior notice to any federal banking agency of the

         proposed addition of an individual to its board of directors 

                                  -29-<PAGE>







         or the employment of an individual as a senior executive

         officer.


                   2.14.  Labor.  No work stoppage involving Seller or

         any Seller Subsidiary, is pending or, to the best knowledge of

         Seller, threatened.  Neither Seller nor any Seller Subsidiary

         is involved in, or, to the best knowledge of Seller, threatened

         with or affected by, any labor dispute, arbitration, lawsuit or

         administrative proceeding which reasonably could be expected to

         have a material adverse affect on the Condition of Seller and

         its Subsidiaries, taken as a whole.  Employees of neither

         Seller nor any Seller Subsidiary, are represented by any labor

         union or any collective bargaining organization. 


                   2.15.  Material Interests of Certain Persons.  (a)

         Except as set forth in Seller's Proxy Statement for its 1995

         Annual Meeting of Stockholders, to the best knowledge of

         Seller, no officer or director of Seller or any Subsidiary of

         Seller, or any "associate" (as such term is defined in Rule

         l4a-1 under the Exchange Act) of any such officer or

         director, has any material interest in any material contract

         or property (real or personal, tangible or intangible), used

         in, or pertaining to the business of, Seller or any

         Subsidiary of Seller, which in the case of Seller is required

         to be disclosed by Item 404 of Regulation S-K promulgated by

         the SEC or in the case of any such Subsidiary would be

         required to be 

                                  -30-<PAGE>







         so disclosed if such Subsidiary had a class of securities

         registered under Section 12 of the Exchange Act.  


                   (b)  Except as set forth in Seller's Proxy

         Statement for its 1995 Annual Meeting of Stockholders or on

         Schedule 2.15B, as of June 30, 1995, there are no loans from

         Seller or any Seller Subsidiary to any present officer,

         director, employee or any associate or related interest of

         any such person which was or would be required under any rule

         or regulation to be approved by or reported to Seller's or

         Seller Subsidiary's Board of Directors ("Insider Loans"), and

         no Insider Loans in excess of $500,000 have been made since

         June 30, 1995.  All outstanding Insider Loans from Seller or

         any Seller Subsidiary were approved by or reported to the

         appropriate board of directors in accordance with applicable

         law and regulations.


                   2.16.  Allowance for Loan and Lease Losses;

         Nonperforming Assets.  (a)  The allowances for loan and lease

         losses contained in the Seller Financial Statements were

         established in accordance with the past practices and

         experiences of Seller and its Subsidiaries, and the allowance

         for loan losses shown on the consolidated condensed balance

         sheet of Seller and its Subsidiaries contained in the most

         recent Seller Form 10-Q is adequate in all material respects

         under the requirements of GAAP to provide for possible losses

         on

                                  -31-<PAGE>







         loans (including without limitation accrued interest

         receivable) and credit commitments (including without

         limitation stand-by letters of credit) outstanding as of the

         date of such balance sheet.


                   (b)  The aggregate amount of all Nonperforming Assets

         (as defined below) on the books of Seller and its Subsidiaries

         does not exceed $5,498,000.  "Nonperforming Assets" shall mean

         (i) all loans and leases (A) that are contractually past due 90

         days or more in the payment of principal and/or interest, (B)

         that are on nonaccrual status, (C) where the interest rate

         terms have been reduced and/or the maturity dates have been

         extended subsequent to the agreement under which the loan was

         originally created due to concerns regarding the borrower's

         ability to pay in accordance with such initial terms, (D) that

         have been classified "doubtful", "loss" or the equivalent

         thereof by any Regulatory Authority, and (ii) all assets

         classified as real estate acquired through foreclosure or

         repossession and other assets acquired through foreclosure or

         repossession.


                   2.17.  Employee Benefit Plans.  (a)  Except as set

         forth in Schedule 2.17A, neither Seller nor any Seller

         Subsidiary is a party to any existing employment, management,

         consulting, deferred compensation, change-in-control or other

         similar contract.  "Seller Employee Plans" means all pension, 

                                  -32-<PAGE>







         retirement, supplemental retirement, savings, profit sharing,

         stock option, stock purchase, stock ownership, stock

         appreciation right, deferred compensation, consulting, bonus,

         medical, disability, workers' compensation, vacation, group

         insurance, severance and other material employee benefit,

         incentive and welfare policies, contracts, plans and

         arrangements, and all trust agreements related thereto,

         maintained (currently or at any time in the last five years)

         by or contributed to by Seller or any Seller Subsidiary in

         respect of any of the present or former directors, officers,

         or other employees of and/or consultants to Seller or any

         Seller Subsidiary.  Schedule 2.17A lists all Seller Employee

         Plans currently in effect.  Seller has furnished Buyer with

         the following documents with respect to each Seller Employee

         Plan:  (i) a true and complete copy of all written documents

         comprising such Seller Employee Plan (including amendments

         and individual agreements relating thereto) or, if there is

         no such written document, an accurate and complete

         description of the Seller Employee Plan; (ii) the most recent

         Form 5500 or Form 5500-C (including all schedules thereto),

         if applicable; (iii) the most recent financial statements and

         actuarial reports, if any; (iv) the summary plan description

         currently in effect and all material modifications thereof,

         if any; and (v) the most recent Internal Revenue Service

         determination letter, if any.  Without limiting the

         generality 

                                  -33-<PAGE>







         of the foregoing, Seller has furnished Buyer with true and

         complete copies of each form of stock option grant or stock

         option agreement that is outstanding under any stock option

         plan of Seller or any Seller Subsidiary.


                   (b)  Except as set forth in Schedule 2.17A, all

         Seller Employee Plans have been maintained and operated

         materially in accordance with their terms and with the

         material requirements of all applicable statutes, orders,

         rules and final regulations, including without limitation

         ERISA and the Internal Revenue Code.  All contributions

         required to be made to Seller Employee Plans have been made.


                   (c)  With respect to each of the Seller Employee

         Plans which is a pension plan (as defined in Section 3(2) of

         ERISA) (the "Pension Plans"):  (i) each Pension Plan which is

         intended to be "qualified" within the meaning of Section

         401(a) of the Internal Revenue Code has been determined to be

         so qualified by the Internal Revenue Service and, to the

         knowledge of Seller, such determination letter may still be

         relied upon, and each related trust is exempt from taxation

         under Section 501(a) of the Internal Revenue Code; (ii) the

         present value of all benefits vested and all benefits accrued

         under each Pension Plan which is subject to Title IV of 

                                  -34-<PAGE>







         ERISA, valued using the assumptions in the most recent

         actuarial report, did not, in each case, as of the last

         applicable annual valuation date (as indicated on Schedule

         2.17A), exceed the value of the assets of the Pension Plan

         allocable to such vested or accrued benefits; (iii) to the

         best knowledge of Seller, there has been no "prohibited

         transaction," as such term is defined in Section 4975 of the

         Internal Revenue Code or Section 406 of ERISA, which could

         subject any Pension Plan or associated trust, or the Seller

         or any Seller Subsidiary, to any material tax or penalty;

         (iv) except as set forth on Schedule 2.17C, no Pension Plan

         subject to Title IV of ERISA or any trust created thereunder

         has been terminated, nor have there been any "reportable

         events" with respect to any Pension Plan, as that term is

         defined in Section 4043 of ERISA on or after January 1, 1985;

         and (v) no Pension Plan or any trust created thereunder has

         incurred any "accumulated funding deficiency", as such term

         is defined in Section 302 of ERISA (whether or not waived).

         No Pension Plan is a "multiemployer plan" as that term is

         defined in Section 3(37) of ERISA.  With respect to each

         Pension Plan that is described in Section 4063(a) of ERISA (a

         "Multiple Employer Pension Plan"):  (i) neither Seller nor

         any Seller Subsidiary would have any liability or obligation

         to post a bond under Section 4063 of ERISA if Seller and all 

                                  -35-<PAGE>







         Seller Subsidiaries were to withdraw from such Multiple

         Employer Pension Plan; and (ii) neither Seller nor any Seller

         Subsidiary would have any liability under Section 4064 of

         ERISA if such Multiple Employer Pension Plan were to

         terminate.


                   (d)  Except as set forth on Schedule 2.17D, neither

         Seller nor any Seller Subsidiary has any liability for any

         post-retirement health, medical or similar benefit of any

         kind whatsoever, except as required by statute or regulation.


                   (e)  Neither Seller nor any Seller Subsidiary has

         any material liability under ERISA or the Internal Revenue

         Code as a result of its being a member of a group described

         in Sections 414(b), (c), (m) or (o) of the Internal Revenue

         Code.


                   (f)  Except as set forth on Schedule 2.17F, neither

         the execution nor delivery of this Agreement, nor the

         consummation of any of the transactions contemplated hereby,

         will (i) result in any material payment (including without

         limitation severance, unemployment compensation or golden

         parachute payment) becoming due to any director or employee

         of Seller or any Seller Subsidiary from any of such entities,

         (ii) materially increase any benefit otherwise payable under

         any of the Seller Employee Plans or (iii) result in the

         acceleration of the time of payment of any such benefit.  No 

                                  -36-<PAGE>







         holder of an option to acquire stock of Seller has or will

         have at any time through the Effective Time the right to

         receive any cash or other payment (other than the issuance of

         stock of Seller) in exchange for or with respect to all or

         any portion of such option.  Seller shall use its best

         efforts to insure that no amounts paid or payable by Seller,

         Seller Subsidiaries or Buyer to or with respect to any

         employee or former employee of Seller or any Seller

         Subsidiary will fail to be deductible for federal income tax

         purposes by reason of Section 280G of the Internal Revenue

         Code.  No Seller Employee Stock Option has an associated

         "Additional Option Right" or similar "re-load" feature.


                   2.18.  Conduct of Seller to Date.  From and after

         January 1, 1995 through the date of this Agreement, except as

         set forth on Schedule 2.18 or in Seller Financial Statements:

         (i) Seller and the Seller Subsidiaries have conducted their

         respective businesses in the ordinary and usual course

         consistent with past practices; (ii) Seller has not issued,

         sold, granted, conferred or awarded any of its Equity

         Securities (except shares of Seller Common Stock upon

         exercise of Seller Employee Stock Options), or any corporate

         debt securities which would be classified under GAAP as long-

         term debt on the balance sheets of Seller; (iii) Seller has

         not effected any stock split or adjusted, combined,

         reclassified or otherwise changed its capitalization; (iv)

         Seller has not 

                                  -37-<PAGE>







         declared, set aside or paid any dividend (other than its

         regular quarterly or regular semi-annual common dividends) or

         other distribution in respect of its capital stock, or

         purchased, redeemed, retired, repurchased, or exchanged, or

         otherwise acquired or disposed of, directly or indirectly,

         any of its Equity Securities, whether pursuant to the terms

         of such Equity Securities or otherwise; (v) neither Seller

         nor any Seller Subsidiary has incurred any material

         obligation or liability (absolute or contingent), except

         normal trade or business obligations or liabilities incurred

         in the ordinary course of business, or subjected to Lien any

         of its assets or properties other than in the ordinary course

         of business consistent with past practice; (vi) neither

         Seller nor any Seller Subsidiary has discharged or satisfied

         any material Lien or paid any material obligation or

         liability (absolute or contingent), other than in the

         ordinary course of business; (vii) neither Seller nor any

         Seller Subsidiary has sold, assigned, transferred, leased,

         exchanged, or otherwise disposed of any of its properties or

         assets other than for a fair consideration in the ordinary

         course of business; (viii) except as required by contract or

         law, neither Seller nor any Seller Subsidiary has (A)

         increased the rate of compensation of, or paid any bonus to,

         any of its directors, officers, or other employees, except

         merit or promotion increases in accordance with existing

         policy, (B) entered into 

                                  -38-<PAGE>







         any new, or amended or supplemented any existing, employment,

         management, consulting, deferred compensation, severance, or

         other similar contract, (C) entered into, terminated, or

         substantially modified any of the Seller Employee Plans or

         (D) agreed to do any of the foregoing; (ix) neither Seller

         nor any Seller Subsidiary has suffered any material damage,

         destruction, or loss, whether as the result of fire,

         explosion, earthquake, accident, casualty, labor trouble,

         requisition, or taking of property by any Regulatory

         Authority, flood, windstorm, embargo, riot, act of God or the

         enemy, or other casualty or event, and whether or not covered

         by insurance; (x) neither Seller nor any Seller Subsidiary

         has cancelled or compromised any debt, except for debts

         charged off or compromised in accordance with the past

         practice of Seller and its Subsidiaries, and (xi) neither

         Seller nor any Seller Subsidiary has entered into any

         material transaction, contract or commitment outside the

         ordinary course of its business.


                   2.19.  Proxy Statement, etc.  None of the

         information regarding Seller or any Seller Subsidiary

         supplied or to be supplied by Seller for inclusion or

         included in (i) the registration statement on Form S-4 to be

         filed with the SEC by Buyer for the purpose of registering

         the shares of Buyer Common Stock to be exchanged for shares

         of Seller Common Stock pursuant to the provisions of this

         Agreement (the 

                                  -39-<PAGE>







         "Registration Statement"), (ii) the proxy or information

         statement (the "Proxy Statement") to be mailed to Seller's

         stockholders in connection with the transactions contemplated

         by this Agreement or (iii) any other documents to be filed

         with any Regulatory Authority in connection with the

         transactions contemplated hereby will, at the respective

         times such documents are filed with any Regulatory Authority

         and, in the case of the Registration Statement, when it

         becomes effective and, with respect to the Proxy Statement,

         when mailed, be false or misleading with respect to any

         material fact, or omit to state any material fact necessary

         in order to make the statements therein not misleading or, in

         the case of the Proxy Statement or any amendment thereof or

         supplement thereto, at the time of the meeting of Seller's

         stockholders referred to in Section 5.03 (the "Meeting") (or,

         if no Meeting is held, at the time the Proxy Statement is

         first furnished to Seller's stockholders), be false or

         misleading with respect to any material fact, or omit to

         state any material fact necessary to correct any statement in

         any earlier communication with respect to the solicitation of

         any proxy for the Meeting.  All documents which Seller or any

         Seller Subsidiary is responsible for filing with any

         Regulatory Authority in connection with the Merger will

         comply as to form in all material respects with the

         provisions of applicable law.

                                  -40-<PAGE>








                   2.20.  Registration Obligations.  Except as set

         forth on Schedule 2.20, neither Seller nor any Seller

         Subsidiary is under any obligation, contingent or otherwise

         to register any of its securities under the Securities Act.


                   2.21.  State Takeover Statutes.  The transactions

         contemplated by this Agreement are not subject to any

         applicable state takeover law under the laws of the State of

         Iowa.


                   2.22.  Accounting, Tax and Regulatory Matters.

         Neither Seller nor any Seller Subsidiary has taken or agreed

         to take any action or has any knowledge of any fact or

         circumstance that would (i) prevent the transactions

         contemplated hereby from qualifying (A) for pooling-of-

         interests accounting treatment or (B) as a reorganization

         within the meaning of Section 368 of the Internal Revenue

         Code or (ii) materially impede or delay receipt of any

         approval referred to in Section 6.01(b) or the consummation

         of the transactions contemplated by this Agreement.


                   2.23.  Brokers and Finders.  Except for Donaldson,

         Lufkin & Jenrette Securities Corporation, neither Seller nor

         any Seller Subsidiary nor any of their respective officers,

         directors or employees has employed any broker or finder or

         incurred any liability for any financial advisory fees,

         brokerage fees, commissions or finder's fees, and no broker

         or

                                  -41-<PAGE>







         finder has acted directly or indirectly for Seller or any

         Seller Subsidiary in connection with this Agreement or the

         transactions contemplated hereby.  Schedule 2.23 discloses a

         bona fide estimate of the aggregate amount of all fees and

         expenses expected to be paid by Seller to all attorneys,

         accountants or investment bankers in connection with the

         Merger ("Merger Fees").


                   2.24.  Other Activities.  (a)  Except as set forth

         on Schedule 2.24A, neither Seller nor any of its Subsidiaries

         engages in any insurance activities other than acting as a

         principal, agent or broker for insurance that is directly

         related to an extension of credit by Seller or any of its

         Subsidiaries and limited to assuring the repayment of the

         balance due on the extension of credit in the event of the

         death, disability or involuntary unemployment of the debtor.


                   (b)  Except as set forth on Schedule 2.24B, to the

         knowledge of Seller's management:  each Subsidiary that is a

         bank that performs personal trust, corporate trust and other

         fiduciary activities ("Trust Activities") has done so with

         requisite authority under applicable law of Regulatory

         Authorities and in material accordance with the agreements

         and instruments governing such Trust Activities, sound

         fiduciary principles and applicable law and regulation

         (specifically including but not limited to Section 9 of Title

         12 of the 

                                  -42-<PAGE>







         Code of Federal Regulations); there is no investigation or

         inquiry by any governmental entity pending or threatened

         against Seller or any of its Subsidiaries thereof relating to

         the compliance by Seller or any of its Subsidiaries with

         sound fiduciary principles and applicable law and

         regulations; and each employee of any such bank had the

         authority to act in the capacity in which such employee acted

         with respect to Trust Activities in each case in which such

         employee was held out as a representative of such bank; and

         such bank has established policies and procedures for the

         purpose of complying with applicable laws of governmental

         entities relating to Trust Activities, has followed such

         policies and procedures in all material respects and has

         performed appropriate internal audit reviews of Trust

         Activities, which audits have disclosed no material

         violations of applicable laws of governmental entities or

         such policies and procedures.


                   2.25.  Interest Rate Risk Management Instruments.

         (a)  Set forth on Schedule 2.25A is a list of all interest

         rate swaps, caps, floors, and option agreements and other

         interest rate risk management arrangements to which Seller or

         any of its Subsidiaries is a party or by which any of their

         properties or assets may be bound.

                                  -43-<PAGE>







                   (b)  All interest rate swaps, caps, floors and

         option agreements and other interest rate risk management

         arrangements to which Seller or any of its Subsidiaries is a

         party or by which any of their properties or assets may be

         bound were entered into in the ordinary course of business

         and in accordance with prudent banking practice and

         applicable rules, regulations and policies of Regulatory

         Authorities and with counterparties believed to be

         financially responsible at the time and are legal, valid and

         binding obligations and are in full force and effect.  Seller

         and each of its Subsidiaries has duly performed in all

         material respects all of its obligations thereunder to the

         extent that such obligations to perform have accrued, and

         there are no material breaches, violations or defaults or

         allegations or assertions of such by any party thereunder.


                   2.26.  Accuracy of Information.  The statements of

         Seller contained in this Agreement, the Schedules and any

         other written document executed and delivered by or on behalf

         of Seller pursuant to the terms of this Agreement are true

         and correct in all material respects, and such statements and

         documents do not omit any material fact necessary to make the

         statements contained therein not misleading.

                                  -44-<PAGE>







                                  ARTICLE III

               REPRESENTATIONS, WARRANTIES AND COVENANTS OF BUYER


                   Buyer represents, and warrants to and covenants

         with Seller as follows:


                   3.01.  Organization and Authority.  Buyer and each

         of its Subsidiaries is a corporation, bank, trust company or

         other entity duly organized, validly existing and in good

         standing under the laws of the jurisdiction of organization,

         is duly qualified to do business and is in good standing in

         all jurisdictions where its ownership or leasing of property

         or the conduct of its business requires it to be so qualified

         and has corporate power and authority to own its properties

         and assets and to carry on its business as it is now being

         conducted, except, in the case of the Buyer Subsidiaries,

         where the failure to be so qualified would not have a

         material adverse effect on the Condition of Buyer and its

         Subsidiaries, taken as a whole.  Buyer is registered as a

         bank holding company with the Board under the Holding Company

         Act.  True and complete copies of the Articles of

         Incorporation and Bylaws of Buyer, each in effect on the date

         of this Agreement, have been provided to Seller.


                   3.02.  Capitalization of Buyer.  The authorized

         capital stock of Buyer consists of (i) 100,000,000 shares of

         Buyer Common Stock, of which, as of July 31, 1995, 54,423,205 

                                  -45-<PAGE>







         shares were issued and outstanding and (ii) 5,000,000 shares

         of preferred stock, no par value ("Buyer Preferred Stock"),

         issuable in series, of which 5,306 shares of Series B-1

         Preferred Stock and 9,500 shares of Series B-2 Preferred

         Stock are issued or outstanding.  Buyer has designated

         1,000,000 shares of Buyer Preferred Stock as "Series A Junior

         Participating Preferred Stock" and has reserved such shares

         under a Rights Agreement dated May 23, 1988 (the "Buyer

         Rights Agreement"), between Buyer and Mercantile Bank of St.

         Louis National Association, as Rights Agent.  As of July 31,

         1995 Buyer had reserved (i) 4,515,373 shares of Buyer Common

         Stock for issuance under various stock option and incentive

         plans ("Buyer Stock Options"), (ii) 322,000 shares of Buyer

         Common Stock for issuance upon the acquisition of Security

         Bank of Conway, FSB ("Conway") pursuant to an Agreement and

         Plan of Reorganization dated July 7, 1995, (iii) 675,000

         shares of Buyer Common Stock for issuance upon the

         acquisition of Southwest Bancshares, Inc. ("Southwest")

         pursuant to an Agreement and Plan of Merger dated January 27,

         1995, (iv) 661,385 shares of Buyer Common Stock for issuance

         upon the acquisition of AmeriFirst Bancorporation Inc.

         ("AmeriFirst") pursuant to an Agreement and Plan of Merger

         dated February 16, 1995, and (v) 521,424 shares of Buyer

         Common Stock for issuance upon the acquisition of First

         Sterling Bancorp, Inc. ("Sterling") pursuant to an Agreement

         and Plan of Merger 

                                  -46-<PAGE>







         dated July 24, 1995.  From July 31, 1995 through the date of

         this Agreement, no shares of Buyer Common Stock or other

         Equity Securities of Buyer have been issued excluding any

         such shares which may have been issued pursuant to stock-

         based employee benefit or incentive plans and programs, or

         pursuant to the foregoing agreements.  Buyer continually

         evaluates possible acquisitions and may prior to the

         Effective Time enter into one or more agreements providing

         for, and may consummate, the acquisition by it of another

         bank, association, bank holding company, savings and loan

         holding company or other company (or the assets thereof) for

         consideration that may include equity securities.  In

         addition, prior to the Effective Time, Buyer may, depending

         on market conditions and other factors, otherwise determine

         to issue equity, equity-linked or other securities for

         financing purposes.  Notwithstanding the foregoing, Buyer

         will not take any action that would (i) prevent the

         transactions contemplated hereby from qualifying (A) for

         pooling-of-interests accounting treatment or (B) as a

         reorganization within the meaning of Section 368 of the

         Internal Revenue Code or (ii) materially impede or delay

         receipt of any approval referred to in Section 6.01(b) or the

         consummation of the transactions contemplated by this

         Agreement.  Except as set forth above and except for

         securities to be issued in connection with Buyer's 

                                  -47-<PAGE>







         pending acquisitions of Conway and Sterling and except

         pursuant to the Buyer Rights Agreement, there are no other

         Equity Securities of Buyer outstanding.  All of the issued

         and outstanding shares of Buyer Common Stock are validly

         issued, fully paid, and nonassessable, and have not been

         issued in violation of any preemptive right of any

         stockholder of Buyer.  At the Effective Time, the Buyer

         Common Stock to be issued in the Merger will be duly

         authorized, validly issued, fully paid and non-assessable,

         and will not be issued in violation of any preemptive right

         of any stockholder of Buyer.


                   3.03.  Authorization.  (a)  Buyer has the corporate

         power and authority to enter into this Agreement and to carry

         out its obligations hereunder.  No stockholder vote is

         required for Buyer to approve this Agreement.  The execution,

         delivery and performance of this Agreement by Buyer and the

         consummation by Buyer of the transactions contemplated hereby

         have been duly authorized by all requisite corporate action

         of Buyer.  This Agreement is a valid and binding obligation

         of Buyer enforceable against Buyer in accordance with its

         terms.  


                   (b)  Neither the execution, delivery and

         performance by Buyer of this Agreement, nor the consummation

         by Buyer of the transactions contemplated hereby, nor

         compliance 

                                  -48-<PAGE>







         by Buyer with any of the provisions hereof, will (i) violate,

         conflict with or result in a breach of any provisions of, or

         constitute a default (or an event which, with notice or lapse

         of time or both, would constitute a default) or result in the

         termination of, or accelerate the performance required by, or

         result in a right of termination or acceleration of, or

         result in the creation of, any Lien upon any of the material

         properties or assets of Buyer or any Buyer Subsidiary under

         any of the terms, conditions or provisions of (x) its

         articles or certificate of incorporation or bylaws, or (y)

         any material note, bond, mortgage, indenture, deed of trust,

         license, lease, agreement or other instrument or obligation

         to which Buyer or any of the material properties or assets of

         Buyer is a party or by which it may be bound, or to which

         Buyer may be subject, or (ii) subject to compliance with the

         statutes and regulations referred to in paragraph (c) of this

         Section 3.03, to the best knowledge of Buyer, violate any

         judgment, ruling, order, writ, injunction, decree, statute,

         rule or regulation applicable to Buyer or any of its

         Subsidiaries or any of their respective material properties

         or assets.


                   (c)  Other than in connection with or in compliance

         with the provisions of The General and Business Corporation

         Law of Missouri (the "Missouri Act"), the Iowa Act, the

         Securities Act, the Exchange Act, the securities or blue sky 

                                  -49-<PAGE>







         laws of the various states or filings, consents, reviews,

         authorizations, approvals or exemptions required under the

         Holding Company Act, and the HSR Act, or any required

         approvals of any other Regulatory Authority, no notice to,

         filing with, exemption or review by, or authorization,

         consent or approval of, any public body or authority is

         necessary for the consummation by Buyer of the transactions

         contemplated by this Agreement.


                   3.04.  Buyer Financial Statements.  The

         supplemental consolidated and parent company only balance

         sheets of Buyer and its Subsidiaries as of December 31, 1994,

         1993 and 1992 and related supplemental consolidated and

         parent company only statements of income, cash flows and

         changes in stockholders' equity for each of the three years

         in the three-year period ended December 31, 1994, together

         with the notes thereto, audited by KPMG Peat Marwick ("Buyer

         Auditors") and included in Buyer's current report on Form 8-K

         dated May 31, 1995 as filed with the SEC, and the unaudited

         consolidated balance sheets of Buyer and its Subsidiaries as

         of March 31 and June 30, 1995 and the related unaudited

         consolidated statements of income and cash flows for the

         periods then ended included in quarterly reports on Form 10-Q

         as filed with the SEC (collectively, the "Buyer Financial

         Statements"), have been prepared in accordance with GAAP,

         present fairly the consolidated financial position of Buyer

         and its 

                                  -50-<PAGE>







         Subsidiaries at the dates and the consolidated results of

         operations, changes in stockholders' equity and cash flows of

         Buyer and its Subsidiaries for the periods stated therein and

         are derived from the books and records of Buyer and its

         Subsidiaries, which are complete and accurate in all material

         respects and have been maintained in all material respects in

         accordance with applicable laws and regulations.  Neither

         Buyer nor any of its Subsidiaries has any material contingent

         liabilities that are not described in the financial

         statements described above.


                   3.05.  Buyer Reports.  Since January 1, 1992, each

         of Buyer and the Buyer Subsidiaries has filed all material

         reports, registrations and statements, together with any

         required material amendments thereto, that it was required to

         file with any Regulatory Authority.  All such reports and

         statements filed with any such Regulatory Authority are

         collectively referred to herein as the "Buyer Reports."  As

         of its respective date, each Buyer Report complied in all

         material respects with all the rules and regulations

         promulgated by the applicable Regulatory Authority and did

         not contain any untrue statement of a material fact or omit

         to state a material fact required to be stated therein or

         necessary in order to make the statements therein, in light

         of the circumstances under which they were made, not

         misleading.

                                  -51-<PAGE>







                   3.06.  Material Adverse Change.  Since December 31,

         1994, there has been no material adverse change in the

         Condition of Buyer and its Subsidiaries, taken as a whole,

         except as may have resulted or may result from changes to

         laws and regulations or changes in economic conditions

         applicable to banking institutions generally or in general

         levels of interest rates affecting banking institutions

         generally.


                   3.07.  Compliance with Laws.  (a)  Each of Buyer

         and its Subsidiaries has complied with all laws, regulations,

         and orders (including without limitation zoning ordinances,

         building codes, ERISA, and securities, tax, environmental,

         civil rights, and occupational health and safety laws and

         regulations and including without limitation in the case of

         any Buyer Subsidiary that is a bank, banking organization,

         thrift, banking corporation or trust company, all statutes,

         rules and regulations, pertaining to the conduct of a

         banking, deposit-taking or lending or related business or to

         the exercise of trust powers) and governing instruments

         applicable to them and to the conduct of their business,

         except where such failure to comply would not have a material

         adverse effect on the Condition of Buyer and its

         Subsidiaries, taken as a whole, and (ii) neither Buyer nor

         any Buyer Subsidiary is in default under, and no event has

         occurred which, with the lapse of time or notice or both,

         could result in the 

                                  -52-<PAGE>







         default under, the terms of any judgment, order, writ,

         decree, permit, or license of any Regulatory Authority or

         court, whether federal, state, municipal, or local and

         whether at law or in equity, except where such default would

         not have a material adverse effect on the Condition of Buyer

         and its Subsidiaries, taken as a whole.  Neither Buyer nor

         any Buyer Subsidiary is subject to or reasonably likely to

         incur a liability as a result of its ownership, operation, or

         use of any Property of Buyer (whether directly or, to the

         best knowledge of Buyer, as a consequence of such Property

         being part of the investment portfolio of Buyer or any Buyer

         Subsidiary) (A) that is contaminated by or contains any Toxic

         Substance, or (B) on which any Toxic Substance has been

         stored, disposed of, placed, or used in the construction

         thereof; and which, in each case, reasonably could be

         expected to have a material adverse effect on the Condition

         of Buyer and its Subsidiaries, taken as a whole.  Except for

         statutory or regulatory restrictions of general application,

         no Regulatory Authority has placed any restriction on the

         business of Buyer or any Buyer Subsidiary which reasonably

         could be expected to have a material adverse effect on the

         Condition of Buyer and its Subsidiaries, taken as a whole.

         No claim, action, suit, or proceeding is pending against

         Buyer or any Buyer Subsidiary relating to Property of Buyer

         before any court or other Regulatory Authority or arbitration 

                                  -53-<PAGE>







         tribunal relating to hazardous substances, pollution, or the

         environment, and there is no outstanding judgment, order,

         writ, injunction, decree, or award against or affecting Buyer

         or any Buyer Subsidiary with respect to the same.


                   (b)  Buyer and each of its Subsidiaries have all

         permits, licenses, authorizations, orders and approvals of,

         and have made all filings, applications and registrations

         with, all Regulatory Authorities that are required in order

         to permit them to own or lease their properties and assets

         and to carry on their business as presently conducted and

         that are material to the business of Buyer and its

         Subsidiaries; all such permits, licenses, certificates of

         authority, orders and approvals are in full force and effect

         and, to the best knowledge of Buyer, no suspension or

         cancellation of any of them is threatened; and all such

         filings, applications and registrations are current.


                   (c)  From and after January 1, 1992, neither Buyer

         nor any Buyer Subsidiary has received any notification or

         communication which has not been resolved from any Regulatory

         Authority (i) asserting that any Buyer or any Subsidiary of

         Buyer, is not in substantial compliance with any of the

         statutes, regulations or ordinances that such Regulatory

         Authority enforces, except with respect to matters which (A)

         are set forth on Schedule 3.07 or in any writing previously 

                                  -54-<PAGE>







         furnished to Buyer or (B) reasonably could not be expected to

         have a material adverse effect on the Condition of Buyer and

         its Subsidiaries, taken as a whole, (ii) threatening to

         revoke any license, franchise, permit or governmental

         authorization that is material to the Condition of Buyer and

         its Subsidiaries, taken as a whole, including without

         limitation such company's status as an insured depositary

         institution under the Federal Deposit Insurance Act, or (iii)

         requiring or threatening to require Buyer or any of its

         Subsidiaries, or indicating that Buyer or any of its

         Subsidiaries may be required, to enter into a cease and

         desist order, agreement or memorandum of understanding or any

         other agreement restricting or limiting or purporting to

         direct, restrict or limit in any manner the operations of

         Buyer or any of its Subsidiaries, including without

         limitation any restriction on the payment of dividends.  No

         such cease and desist order, agreement or memorandum of

         understanding or other agreement is currently in effect.


                   3.08.  Registration Statement, etc.  None of the

         information regarding Buyer or any of its Subsidiaries supplied

         or to be supplied by Buyer for inclusion or included in (i) the

         Registration Statement, (ii) the Proxy Statement, or (iii) any

         other documents to be filed with any Regulatory Authority in

         connection with the transactions contemplated hereby will, at 

                                  -55- <PAGE>







         the respective times such documents are filed with any

         Regulatory Authority and, in the case of the Registration

         Statement, when it becomes effective and, with respect to the

         Proxy Statement, when mailed (or furnished to stockholders of

         Seller), be false or misleading with respect to any material

         fact, or omit to state any material fact necessary in order to

         make the statements therein not misleading or, in the case of

         the Proxy Statement or any amendment thereof or supplement

         thereto, at the time of the Meeting, be false or misleading

         with respect to any material fact, or omit to state any

         material fact necessary to correct any statement in any earlier

         communication with respect to the solicitation of any proxy for

         the Meeting.  All documents which Buyer or any of its

         Subsidiaries are responsible for filing with any Regulatory

         Authority in connection with the Merger will comply as to form

         in all material respects with the provisions of applicable law.


                   3.09.  Brokers and Finders.  Neither Buyer nor any

         of its Subsidiaries nor any of their respective officers,

         directors or employees has employed any broker or finder or

         incurred any liability for any financial advisory fees,

         brokerage fees, commissions or finder's fees, and no broker

         or finder has acted directly or indirectly for Buyer or any

         of its Subsidiaries in connection with this Agreement or the

         transactions contemplated hereby.

                                  -56-<PAGE>







                   3.10.  Commitments and Contracts.  Neither Buyer

         nor any Buyer Subsidiary is in violation of its charter

         documents or bylaws or in default under any material

         agreement, commitment, arrangement, lease, insurance policy,

         or other instrument, whether entered into in the ordinary

         course of business or otherwise and whether written or oral,

         and there has not occurred any event that, with the lapse of

         time or giving of notice or both, would constitute such a

         default, except, in all cases, where such default would not

         have a material adverse effect on the Condition of Buyer and

         its Subsidiaries, taken as a whole.


                   3.11.  Litigation and Other Proceedings.  Neither

         Buyer nor any Buyer Subsidiary is a party to any pending or,

         to the best knowledge of Buyer, threatened claim, action,

         suit, investigation or proceeding, or is subject to any

         order, judgment or decree, except for matters which, in the

         aggregate, will not have, or reasonably could not be expected

         to have, a material adverse effect on the Condition of Buyer

         and its Subsidiaries, taken as a whole, or which purports or

         seeks to enjoin or restrain the transactions contemplated by

         this Agreement.  Without limiting the generality of the

         foregoing, there are no actions, suits, or proceedings

         pending or, to the best knowledge of Buyer, threatened

         against Buyer or any Buyer Subsidiary or any of their

         respective officers or directors by any stockholder of Buyer 

                                  -57-<PAGE>







         or any Buyer Subsidiary (or any former stockholder of Buyer

         or any Buyer Subsidiary) or involving claims under the

         Securities Act, the Exchange Act, the Community Reinvestment

         Act of 1977, as amended, or the fair lending laws.


                   3.12.  Interest Rate Risk Management Instruments.

         All interest rate swaps, caps, floors and option agreements

         and other interest rate risk management arrangements to which

         Buyer or any of its Subsidiaries is a party or by which any

         of their properties or assets may be bound were entered into

         in the ordinary course of business and in accordance with

         prudent banking practice and applicable rules, regulations

         and policies of Regulatory Authorities and with

         counterparties believed to be financially responsible at the

         time and are legal, valid and binding obligations and are in

         full force and effect.  Buyer and each of its Subsidiaries

         has duly performed in all material respects all of its

         obligations thereunder to the extent that such obligations to

         perform have accrued, and there are no material breaches,

         violations or defaults or allegations or assertions of such

         by any party thereunder. 


                   3.13.  Taxes.  Buyer and each Buyer Subsidiary have

         timely filed or will timely (including extensions) file all

         material tax returns required to be filed at or prior to the 

                                  -58-<PAGE>







         Closing Date ("Buyer Returns").  Each of Buyer and its

         Subsidiaries has paid, or set up adequate reserves on the Buyer

         Financial Statements for the payment of, all taxes required to

         be paid in respect of the periods covered by such returns and

         has set up adequate reserves on the most recent financial

         statements Buyer has filed under the Exchange Act for the

         payment of all taxes anticipated to be payable in respect of

         all periods up to and including the latest period covered by

         such financial statements.  Neither Buyer nor any Buyer

         Subsidiary will have any liability material to the Condition of

         Buyer and the Buyer Subsidiaries, taken as a whole, for any

         such taxes in excess of the amounts so paid or reserves so

         established and no material deficiencies for any tax,

         assessment or governmental charge have been proposed, asserted

         or assessed (tentatively or definitely) against any of Buyer or

         any Buyer Subsidiary which would not be covered by existing

         reserves.  Neither Buyer nor any Buyer Subsidiary is delinquent

         in the payment of any material tax, assessment or governmental

         charge, nor, except as previously disclosed, has it requested

         any extension of time within which to file any tax returns in

         respect of any fiscal year which have not since been filed and

         no requests for waivers of the time to assess any tax are

         pending.  The federal and state income tax returns of Buyer and

         the Buyer Subsidiaries have been audited and settled by the

         Internal Revenue Service 

                                  -59-<PAGE>







         (the "IRS") or appropriate state tax authorities for all

         periods ended through December 31, 1988.  There is no

         deficiency or material refund litigation or matter in

         controversy with respect to Buyer Returns.  Neither Buyer nor

         any Buyer Subsidiary has extended or waived any statute of

         limitations on the assessment of any tax due that is currently

         in effect.


                   3.14.  Accounting, Tax and Regulatory Matters.

         Neither Buyer nor any Buyer Subsidiary has taken or agreed to

         take any action or has any knowledge of any fact or

         circumstance that would (i) prevent the transactions

         contemplated hereby from qualifying (A) for pooling-of-

         interests accounting treatment or (B) as a reorganization

         within the meaning of Section 368 of the Internal Revenue Code

         or (ii) materially impede or delay receipt of any approval

         referred to in Section 6.01(b) or the consummation of the

         transactions contemplated by this Agreement.


                   3.15.  Accuracy of Information.  The statements of

         Buyer contained in this Agreement, the Schedules and in any

         other written document executed and delivered by or on behalf

         of Buyer pursuant to the terms of this Agreement are true and

         correct in all material respects, and such statements and

         documents do not omit any material fact necessary to make the

         statements contained herein or therein not misleading.

                                  -60-<PAGE>








                                    ARTICLE IV

                CONDUCT OF BUSINESSES PRIOR TO THE EFFECTIVE TIME


                   4.01.  Conduct of Businesses Prior to the Effective

         Time.  During the period from the date of this Agreement to

         the Effective Time, each of Buyer and Seller shall, and shall

         cause each of their respective Subsidiaries to, conduct its

         business according to the ordinary and usual course

         consistent with past practices and shall, and shall cause

         each such Subsidiary to, use its best efforts to maintain and

         preserve its business organization, employees and

         advantageous business relationships and retain the services

         of its officers and key employees.


                   4.02.  Forbearances.  Except as set forth on

         Schedule 4.02 or as otherwise contemplated by this Agreement,

         during the period from the date of this Agreement to the

         Effective Time, Seller shall not and shall not permit any of

         its Subsidiaries to, without the prior written consent of

         Buyer:


                   (a)  declare, set aside or pay any dividends or

              other distributions, directly or indirectly, in respect

              of its capital stock (other than dividends from a

              Subsidiary of Seller to Seller or another Subsidiary of

              Seller), except that Seller may declare and pay cash

              dividends on the Seller Common Stock of not more than 

                                  -61-<PAGE>







              (x) for dividends payable in 1995, $.17 per share per

              quarterly period and (y) for dividends payable in 1996,

              per quarterly period, $.19 per share; provided, that

              Seller shall not declare or pay any dividends on Seller

              Common Stock for any period in which its stockholders

              will be entitled to receive any regular quarterly

              dividend on the shares of Buyer Common Stock to be

              issued in the Merger; or,


                   (b)  enter into or amend any employment, severance

              or similar agreement or arrangement with any director or

              officer or employee, or materially modify any of the

              Seller Employee Plans or grant any salary or wage

              increase or materially increase any employee benefit

              (including incentive or bonus payments), except normal

              individual increases in compensation to employees

              consistent with past practice, or as required by law or

              contract; or, 


                   (c)  authorize, recommend (subject to the fiduciary

              duties of Seller's Board of Directors, based upon

              written advice of counsel to Seller, which counsel is

              reasonably acceptable to Buyer), propose or announce an

              intention to authorize, so recommend or propose, or

              enter into an agreement in principle with respect to,

              any merger, consolidation or business combination (other 

                                  -62-<PAGE>







              than the Merger), any acquisition of a material amount

              of assets or securities, any disposition of a material

              amount of assets or securities or any release or

              relinquishment of any material contract rights; or


                   (d)  propose or adopt any amendments to its

              articles of incorporation, association or other charter

              document or bylaws; or


                   (e)  issue, sell, grant, confer or award any of its

              Equity Securities (except shares of Seller Common Stock

              issued upon exercise of Seller Employee Stock Options

              outstanding on the date of this Agreement) or effect any

              stock split or adjust, combine, reclassify or otherwise

              change its capitalization as it existed on the date of

              this Agreement; or


                   (f)  purchase, redeem, retire, repurchase, or

              exchange, or otherwise acquire or dispose of, directly

              or indirectly, any of its Equity Securities, whether

              pursuant to the terms of such Equity Securities or

              otherwise; or


                   (g)  (i)  without first consulting with Buyer,

              enter into, renew or increase any loan or credit

              commitment (including stand-by letters of credit) to, or

              invest or agree to invest in any person or entity or 

                                  -63-<PAGE>







              modify any of the material provisions or renew or

              otherwise extend the maturity date of any existing loan

              or credit commitment (collectively, "Lend to") in an

              amount in excess of $1,500,000 or in an amount which, or

              when aggregated with any and all loans or credit

              commitments to such person or entity, would be in excess

              of $1,500,000; (ii) without first obtaining the written

              consent of Buyer, lend to any person or entity in an

              amount in excess of $3,000,000 or in an amount which,

              when aggregated with any and all loans or credit

              commitments to such person or entity, would be in excess

              of $3,000,000; (iii) Lend to any person other than in

              accordance with lending policies as in effect on the

              date hereof; provided that in the case of clauses (ii)

              and (iii) Seller or any Seller Subsidiary may make any

              such loan in the event (A) Seller or any Seller

              Subsidiary has delivered to Buyer or its designated

              representative a notice of its intention to make such

              loan and such information as Buyer or its designated

              representative may reasonably require in respect thereof

              and (B) Buyer or its designated representative shall not

              have reasonably objected to such loan by giving written

              or facsimile notice of such objection within two

              business days following the delivery to Buyer of the

              notice of intention and information as aforesaid; or

              (iv) Lend to any 

                                  -64-<PAGE>







              person or entity any of the loans or other extensions of

              credit to which or investments in which are on a "watch

              list" or similar internal report of Seller or any Seller

              Subsidiary (except those denoted "pass" thereon), in an

              amount in excess of $500,000; provided, however, that

              nothing in this paragraph shall prohibit Seller or any

              Seller Subsidiary from honoring any contractual

              obligation in existence on the date of this Agreement.

              Notwithstanding clauses (i) and (ii) of this Section

              4.02(g), Seller shall be authorized without first

              consulting with Buyer or obtaining Buyer's prior written

              consent, to increase the aggregate amount of any credit

              facilities theretofore established in favor of any

              person or entity (each a "Pre-Existing Facility"),

              provided that the aggregate amount of any and all such

              increases with respect to any Pre-Existing Facility

              shall not be in excess of the lesser of ten percent

              (10%) of such Pre-Existing Facility or $250,000; or


                   (h)  directly or indirectly (including through its

              officers, directors, employees or other representatives)

              initiate, solicit or encourage any discussions,

              inquiries or proposals with any third party relating to

              the disposition of any significant portion of the

              business or assets of Seller or any Seller Subsidiary or

              the acquisition of Equity Securities of Seller or any

              Seller 

                                  -65-<PAGE>







              Subsidiary or the merger of Seller or any Seller

              Subsidiary with any person (other than Buyer) or any

              similar transaction (each such transaction being

              referred to herein as an "Acquisition Transaction"), or

              provide any such person with information or assistance

              or negotiate with any such person with respect to an

              Acquisition Transaction, and Seller shall promptly

              notify Buyer orally of all the relevant details relating

              to all inquiries, indications of interest and proposals

              which it may receive with respect to any Acquisition

              Transaction; or


                   (i)  take any action that would (A) materially impede

              or delay the consummation of the transactions contemplated

              by this Agreement or the ability of Buyer or Seller to

              obtain any approval of any Regulatory Authority required

              for the transactions contemplated by this Agreement or to

              perform its covenants and agreements under this Agreement

              or (B) prevent the transactions contemplated hereby from

              qualifying as a reorganization within the meaning of

              Section 368 of the Internal Revenue Code; or 


                   (j)  other than in the ordinary course of business

              consistent with past practice, incur any indebtedness for

              borrowed money, assume, guarantee, endorse or otherwise as 

                                  -66-<PAGE>







              an accommodation become responsible or liable for the

              obligations of any other individual, corporation or other

              entity, or, without prior approval of Buyer, which shall

              not be unreasonably withheld, pay any Merger Fees in

              excess of the amount set forth on Schedule 2.23; or


                   (k)  restructure or materially change its investment

              securities portfolio, through purchases, sales or

              otherwise, or the manner in which the portfolio is

              classified or reported, or execute any individual

              investment transaction (i) in United States Treasury

              securities in excess of $5,000,000 and (ii) in any other

              investment securities in excess of $1,000,000; or


                   (l)  agree in writing or otherwise to take any of

              the foregoing actions or engage in any activity, enter

              into any transaction or take or omit to take any other

              act which would make any of the representations and

              warranties in Article II of this Agreement untrue or

              incorrect in any material respect if made anew after

              engaging in such activity, entering into such

              transaction, or taking or omitting such other act. 

                                  -67-<PAGE>







                                   ARTICLE V

                             ADDITIONAL AGREEMENTS

                   5.01.  Access and Information.  (a)  Buyer and its

         Subsidiaries, on the one hand, and Seller and its

         Subsidiaries, on the other hand, shall each afford to each

         other, and to the other's accountants, counsel and other

         representatives, full access during normal business hours,

         during the period prior to the Effective Time, to all their

         respective properties, books, contracts, commitments and

         records and, during such period, each shall furnish promptly

         to the other (i) a copy of each report, schedule and other

         document filed or received by it during such period pursuant

         to the requirements of federal and state securities laws and

         (ii) all other information concerning its business,

         properties and personnel as such other party may reasonably

         request.  Each party hereto shall, and shall cause its

         advisors and representatives to, (A) hold confidential all

         information obtained in connection with any transaction

         contemplated hereby with respect to the other party which is

         not otherwise public knowledge, (B) return all documents

         (including copies thereof) obtained hereunder from the other

         party to such other party and (C) use its best efforts to

         cause all information obtained pursuant to this Agreement or

         in connection with the negotiation of this Agreement to be

         treated as confidential and not use, or knowingly permit

         others to use, any 

                                  -68-<PAGE>







         such information unless such information becomes generally

         available to the public.


                   (b)  Each party promptly following the date of this

         Agreement shall commence its review of the other and the

         respective operations, business affairs, prospects and

         financial conditions of each, including, without limitation,

         those matters which are the subject of Seller's

         representations and warranties (the "Due Diligence Review").

         Each party shall conclude such review by not later than

         thirty (30) business days after the date of this Agreement

         (the "Due Diligence Period"), but the pendency of such Due

         Diligence Review shall not delay Buyer's obligation pursuant

         to Section 5.02 of this Agreement to file a Registration

         Statement with the SEC and all other necessary applications

         and filings with the appropriate federal and state regulatory

         agencies.  Each party shall promptly advise the other of any

         situation, event, circumstance or other matter which first

         came to the attention of such party after the date hereof

         which could result in the termination of this Agreement

         pursuant to Section 7.01 hereof, or, if applicable, of the

         absence of any situation, event, circumstance or other

         matter.  Notwithstanding anything herein or implied to the

         contrary, the Due Diligence Review shall not limit, restrict

         or preclude, or be construed to limit, restrict or preclude,

         either party, at any time or from time to time thereafter,

         from conducting such further 

                                  -69-<PAGE>







         reviews or from exercising any rights available to it

         hereunder as a result of the existence or occurrence prior to

         the Due Diligence Period of any event or condition which was

         not detected in the Due Diligence Review and which would

         constitute a breach of any representation, warranty or

         agreement under this Agreement.


                   5.02.  Registration Statement; Regulatory Matters.

         (a)  Buyer shall prepare and, subject to the review and consent

         of Seller with respect to matters relating to Seller, file with

         the SEC as soon as is reasonably practicable the Registration

         Statement (or the equivalent in the form of preliminary proxy

         material) with respect to the shares of Buyer Common Stock to

         be issued in the Merger.  Buyer shall prepare and file an

         application with the Federal Reserve Board as soon as

         reasonably practicable.  Buyer shall use all reasonable efforts

         to cause the Registration Statement to become effective.  Buyer

         shall also take any action required to be taken under any

         applicable state blue sky or securities laws in connection with

         the issuance of such shares, and Seller and its Subsidiaries

         shall furnish Buyer all information concerning Seller and its

         Subsidiaries and the stockholders thereof as Buyer may

         reasonably request in connection with any such action.

                                  -70-<PAGE>







                   (b)  Seller and Buyer shall cooperate and use their

         respective best efforts to prepare all documentation, to

         effect all filings and to obtain all permits, consents,

         approvals and authorizations of all third parties and 
         
         Regulatory Authorities necessary to consummate the transactions

         contemplated by this Agreement and, as and if directed by

         Buyer, to consummate such other mergers, consolidations or

         asset transfers or other transactions by and among Buyer's

         Subsidiaries and Seller's Subsidiaries concurrently with or

         following the Effective Time.


                   5.03.  Stockholder Approval.  Seller shall call a

         meeting of its stockholders to be held as soon as practicable

         for the purpose of voting upon the Merger or take other

         action for stockholders to authorize the Merger.  In

         connection therewith, Buyer shall prepare the Proxy Statement

         and, with the approval of each of Buyer and Seller, the Proxy

         Statement shall be filed with the SEC and mailed to the

         stockholders of Seller.  The Board of Directors of Seller

         shall submit for approval of Seller's stockholders the

         matters to be voted upon in order to authorize the Merger.

         The Board of Directors of Seller hereby does and (subject to

         the fiduciary duties of Seller's Board of Directors, based

         upon written advice of counsel to Seller, which counsel is

         reasonably acceptable to Buyer) will recommend this Agreement

         and the transactions contemplated hereby to stockholders of

         Seller 

                                  -71-<PAGE>







         and will use its best efforts to obtain any vote of Seller's

         stockholders that is necessary for the approval and adoption

         of this Agreement and consummation of the transactions

         contemplated hereby.


                   5.04.  Current Information.  During the period from

         the date of this Agreement to the Effective Time, each party

         shall promptly furnish the other with copies of all monthly

         and other interim financial information or reports as the

         same become available and shall cause one or more of its

         designated representatives to confer on a regular and

         frequent basis with representatives of the other party.  Each

         party shall promptly notify the other party of any material

         change in its business or operations and of any governmental

         complaints, investigations or hearings (or communications

         indicating that the same may be contemplated), or the

         institution or the threat of material litigation involving

         such party, and shall keep the other party fully informed of

         such events.


                   5.05.  Agreements of Affiliates.  As soon as

         practicable after the date of this Agreement, Seller shall

         deliver to Buyer a letter identifying all persons whom Seller

         believes to be, at the time this Agreement is submitted to a

         vote of the stockholders of Seller, "affiliates" of Seller

         for purposes of Rule 145 under the Securities Act.  Seller 

                                  -72-<PAGE>







         shall use its best efforts to cause each person who is so

         identified as an "affiliate" to deliver to Buyer as soon as

         practicable thereafter, and in any event no later than the

         publication of notice in the Federal Register of Buyer's

         application with the Federal Reserve Board referred to in

         Section 5.02, a written agreement providing that from the

         date of such agreement each such person will agree not to

         sell, pledge, transfer or otherwise dispose of any shares of

         stock of Seller held by such person or any shares of Buyer

         Common Stock to be received by such person in the Merger

         except in compliance with the applicable provisions of the

         Securities Act and until such time as financial results

         covering at least 30 days of combined operations of Buyer and

         Seller shall have been published.  Prior to the Effective

         Time, Seller shall amend and supplement such letter and use

         its best efforts to cause each additional person who is

         identified as an "affiliate" to execute a written agreement

         as set forth in this Section 5.05.


                   5.06.  Expenses.  Each party hereto shall bear its

         own expenses incident to preparing, entering into and

         carrying out this Agreement and to consummating the Merger.


                   5.07.  Miscellaneous Agreements and Consents.  (a)

         Subject to the terms and conditions herein provided, each of

         the parties hereto agrees to use its respective best efforts 

                                  -73-<PAGE>







         to take, or cause to be taken, all action, and to do, or

         cause to be done, all things necessary, proper or advisable

         under applicable laws and regulations to consummate and make

         effective the transactions contemplated by this Agreement as

         expeditiously as possible, including without limitation using

         its respective best efforts to lift or rescind any injunction

         or restraining order or other order adversely affecting the

         ability of the parties to consummate the transactions

         contemplated hereby.  Each party shall, and shall cause each

         of its respective subsidiaries to, use its best efforts to

         obtain consents of all third parties and Regulatory

         Authorities necessary or, in the opinion of Buyer, desirable

         for the consummation of the transactions contemplated by this

         Agreement.


                   (b)  Seller, prior to the Effective Time, shall (i)

         consult and cooperate with Buyers regarding the

         implementation of those policies and procedures established

         by Buyer for its governance and that of its Subsidiaries and

         not otherwise referenced in Section 5.16 hereof, including,

         without limitation, policies and procedures pertaining to the

         accounting, asset/liability management, audit, credit, human

         resources, treasury and legal functions, and (ii) at the

         request of Buyer, conform Seller's existing policies and

         procedures in respect of such matters to Buyer's policies and

         procedures or, in the absence of any existing Seller policy 

                                  -74-<PAGE>







         or procedure regarding any such function, introduce Buyer's

         policies or procedures in respect thereof, unless to do so

         would cause Seller or any of the Seller Subsidiaries to be in

         violation of any law, rule or regulation of any Regulatory

         Authority having jurisdiction over Seller and/or the Seller

         Subsidiary affected thereby.


                   5.08.  Employee Benefits.  (a)  The provisions of

         the Seller Stock Plans and of any other plan, program or

         arrangement providing for the issuance or grant of any other

         interest in respect of the capital stock of Seller or any

         Seller Subsidiary shall be deleted and terminated as of the

         Effective Time, and Seller shall ensure that following the

         Effective Time no holder of Seller Employee Stock Options or

         any participant in any Seller Stock Plan shall have any right

         thereunder to acquire any securities of Seller or any Seller

         Subsidiary.


                   (b)  Except as set forth in Section 5.08(a) hereof,

         the Seller Employee Plans shall not be terminated by reason

         of the Merger but shall continue thereafter as plans of the

         Surviving Corporation until such time as the employees of the

         Seller and the Seller Subsidiaries are integrated into

         Buyer's employee benefit plans that are available to other

         employees of Buyer and Buyer Subsidiaries, subject to the

         terms and conditions specified in such plans and to such 

                                  -75-<PAGE>







         changes therein as may be necessary to reflect the

         consummation of the Merger.  Buyer shall take such steps as

         are necessary or required to integrate the employees of

         Seller and the Seller Subsidiaries in Buyer's employee

         benefit plans available to other employees of Buyer and Buyer

         Subsidiaries as soon as practicable after the Effective Time,

         with (i) full credit for prior service with Seller or any of

         the Seller Subsidiaries for purposes of vesting and

         eligibility for participation (but not benefit accruals under

         any defined benefit plan), and co-payments and deductibles,

         and (ii) waiver of all waiting periods and pre-existing

         condition exclusions or penalties.


                   5.09.  Employee Stock Options.  At the Effective

         Time, all rights with respect to Seller Common Stock pursuant

         to Seller Employee Stock Options that are outstanding at the

         Effective Time, whether or not then exercisable, shall be

         converted into and become rights with respect to Buyer Common

         Stock, and Buyer shall assume each Seller Employee Stock Option

         in accordance with the terms of the stock option plan under

         which it was issued and the stock option agreement by which it

         is evidenced.  From and after the Effective Time, (i) each

         Seller Employee Stock Option assumed by Buyer shall be

         exercised solely for shares of Buyer Common Stock, (ii) the

         number of shares of Buyer Common Stock subject to each Seller

         Employee Stock Option shall be equal to the number of shares of

         Seller 

                                  -76-<PAGE>







         Common Stock subject to such Seller Employee Stock Option

         immediately prior to the Effective Time multiplied by the

         Exchange Ratio and (iii) the per share exercise price under

         each Seller Employee Stock Option shall be adjusted by dividing

         the per share exercise price under such Seller Employee Stock

         Option by the Exchange Ratio and rounding down to the nearest

         cent; provided, however, that the terms of each Seller Employee

         Stock Option shall, in accordance with its terms, be subject to

         further adjustment as appropriate to reflect any stock split,

         stock dividend, recapitalization or other similar transaction

         subsequent to the Effective Time.  It is intended that the

         foregoing assumption shall be undertaken in a manner that will

         not constitute a "modification" as defined in the Internal

         Revenue Code, as to any Seller Employee Stock Option that is an

         "incentive stock option."


                   5.10.  Press Releases.  Except as may be required

         by law, Seller and Buyer shall consult and agree with each

         other as to the form and substance of any proposed press

         release relating to this Agreement or any of the transactions

         contemplated hereby.


                   5.11.  State Takeover Statutes.  Seller will take

         all steps necessary to exempt the transactions contemplated

         by this Agreement and any agreement contemplated hereby from, 

                                  -77-<PAGE>







         and if necessary challenge the validity of, any applicable

         state takeover law.


                   5.12  D&O Indemnification.  Buyer agrees that the

         Merger shall not affect or diminish any of Seller's duties

         and obligations of indemnification existing as of the

         Effective Time in favor of employees, agents, directors or

         officers of Seller or its Subsidiaries arising by virtue of

         their respective Articles of Incorporation or Bylaws in the

         form in effect at the date of this Agreement or arising by

         operation of law or arising by virtue of any contract,

         resolution or other agreement or document existing at the

         date of this Agreement, and such duties and obligations shall

         continue in full force and effect for so long as they would

         (but for the Merger) otherwise survive and continue in full

         force and effect.  


                   5.13.  Best Efforts.  Each of Buyer and Seller

         undertakes and agrees to use its best efforts to cause the

         Merger (i) to qualify (A) for pooling-of-interests accounting

         treatment and (B) as a reorganization within the meaning of

         Section 368 of the Internal Revenue Code (including, if

         necessary, to take reasonable steps to restructure the

         transactions contemplated by this Agreement to so qualify)

         and (ii) to occur as soon as practicable.  Each of Buyer and

         Seller agrees to not take any action that would materially

         impede or 

                                  -78-<PAGE>







         delay the consummation of the transactions contemplated by

         this Agreement or the ability of Buyer or Seller to obtain

         any approval of any Regulatory Authority required for the

         transactions contemplated by this Agreement or to perform its

         covenants and agreements under this Agreement.


                   5.14.  Insurance.  As soon as practicable following

         the date hereof, Seller shall, and Seller shall cause its

         Subsidiaries to, use its best efforts to maintain its

         existing insurance and, if not already obtained, obtain (and

         maintain through the Effective Time) insurance with respect

         to employee benefit matters and umbrella insurance in respect

         of automobile fleet coverage for amounts as reasonably

         requested by Buyer with financially sound and reputable

         insurance companies.


                   5.15.  Bank Minority Shares.  As soon as reasonably

         practicable, Seller shall use all reasonable efforts to

         cooperate with Buyer in respect of each person holding

         capital stock of any of the Banks (other than Seller or any

         of the Seller Subsidiaries), whether as qualifying shares or

         otherwise, with the goal of purchasing such shares at any

         time and/or from time to time, at a price reasonably

         acceptable to Buyer.


                   5.16.  Conforming Entries.  (a)  Notwithstanding

         that Seller believes that Seller and the Seller Subsidiaries 

                                  -79-<PAGE>







         have established all reserves and taken all provisions for

         possible loan losses required by GAAP and applicable laws,

         rules and regulations, Seller recognizes that Buyer may have

         adopted different loan, accrual and reserve policies

         (including loan classifications and levels of reserves for

         possible loan losses).  From and after the date of this

         Agreement to the Effective Time, Seller and Buyer shall

         consult and cooperate with each other with respect to

         conforming the loan, accrual and reserve policies of Seller

         and the Seller Subsidiaries to those policies of Buyer, as

         specified in each case in writing to Seller, based upon such

         consultation and as hereinafter provided.


                   (b)  In addition, from and after the date of this

         Agreement to the Effective Time, Seller and Buyer shall

         consult and cooperate with each other with respect to

         determining appropriate Seller accruals, reserves and charges

         to establish and take in respect of excess equipment write-

         off or write-down of various assets and other appropriate

         charges and accounting adjustments taking into account the

         parties' business plans following the Merger, as specified in

         each case in writing to Seller, based upon such consultation

         and as hereinafter provided.


                   (c)  Seller and Buyer shall consult and cooperate

         with each other with respect to determining, as specified in 

                                  -80-<PAGE>







         a written notice from Buyer to Seller, based upon such

         consultation and as hereinafter provided, the amount and the

         timing for recognizing for financial accounting purposes

         Seller's expenses of the Merger and the restructuring charges

         relating to or to be incurred in connection with the Merger.


                   (d)  At the request of Buyer, Seller shall (i)

         establish and take such reserves and accruals as Buyer shall

         request to conform Seller's loan, accrual and reserve

         policies to Buyer's policies, and (ii) establish and take

         such accruals, reserves and charges in order to implement

         such policies in respect of excess facilities and equipment

         capacity, severance costs, litigation matters, write-off or

         write-down of various assets and other appropriate accounting

         adjustments, and to recognize for financial accounting

         purposes such expenses of the Merger and restructuring

         charges related to or to be incurred in connection with the

         Merger, in each case at such times as are requested by Buyer

         in a written notice to Seller, in accordance with the

         following objective.  It is the objective of Buyer and Seller

         that such reserves, accruals and charges referred to in this

         Section 5.16 to be taken as at or immediately prior to

         December 31, 1995, provided that if such reserves, accruals

         and charges are to be taken as at or prior to December 31,

         1995 and the Closing Date is to occur thereafter, Buyer shall

         certify to 

                                  -81-<PAGE>







         Seller on or prior to December 31, 1995, that the bank

         regulatory approval conditions to its obligations

         contemplated by Section 6.01(b) have been satisfied or waived

         (except to the extent that any waiting period associated

         therewith may then have commenced but not expired) and Buyer

         and Seller shall have mutually agreed by December 31, 1995 to

         the scheduling of the Closing Date; and provided, further,

         that Seller shall not be required to take any such action

         that is not consistent with GAAP.


                   5.17.  Environmental Reports.  Seller shall provide

         to Buyer as soon as reasonably practicable, but not later

         than ninety (90) days after the date hereof, a report of a

         phase one environmental investigation on all real property

         owned, leased or operated by Seller or any of the Seller

         Subsidiaries as of the date hereof (but excluding "other real

         estate owned," property held in trust or in a fiduciary

         capacity and space in retail or similar establishments leased

         by Seller or any of the Seller Subsidiaries for automatic

         teller machines or bank branch facilities where the space

         leased comprises less than 20% of the total space leased to

         all tenants of such property) and within ten (10) days after

         the acquisition or lease of any real property acquired or

         leased by Seller or any of the Seller Subsidiaries after the 

                                  -82-<PAGE>







         date hereof (but excluding space in retail and similar

         establishments leased by Seller or any of the Seller

         Subsidiaries for automatic teller machines or bank branch

         facilities where the space leased comprises less than 20% of

         the total space leased to all tenants of such property).  If

         advisable in light of the phase one report with respect to

         any parcel of real property referred to above, in the

         reasonable opinion of Buyer, Seller shall also provide to

         Buyer a phase two investigation report on such designated

         parcels.  Buyer shall have fifteen (15) business days from

         the receipt of any such phase two investigation report to

         notify Seller of any dissatisfaction with the contents of

         such report.  If the estimated costs of all remedial or other

         corrective actions or measures with regard to the real

         properties referred to above required by applicable law

         exceed $5,000,000 in the aggregate, as reasonably estimated

         by an environmental expert retained for such purpose by

         Seller, at Seller's expense, upon Buyer's reasonable request,

         or if such cost cannot be so reasonably estimated by such

         expert to be such amount or less with any reasonable degree

         of certainty, then Buyer, after providing Seller with written

         notice of Buyer's intent to do so and allowing Seller a six-

         month period from the date of such notice to take and

         complete, to the reasonable satisfaction of Buyer, all such

         remedial or other corrective actions and measures (the

         aggregate cost of which incurred by 

                                  -83-<PAGE>







         Seller and the Seller Subsidiaries shall not exceed

         $5,000,000), shall have the right pursuant to Section 7.01(h)

         hereof to terminate this Agreement, which shall be Buyer's

         sole remedy in such event.


                                   ARTICLE VI

                                   CONDITIONS


                   6.01.  Conditions to Each Party's Obligation To

         Effect the Merger.  The respective obligations of each party

         to effect the Merger shall be subject to the fulfillment or

         waiver at or prior to the Effective Time of the following

         conditions:


                   (a)  This Agreement shall have received the

              requisite approval of stockholders of Seller.


                   (b)  All requisite approvals of this Agreement and

              the transactions contemplated hereby shall have been

              received from the Federal Reserve Board, the State Bank

              Regulator and any other Regulatory Authority.


                   (c)  The Registration Statement shall have been

              declared effective and shall not be subject to a stop

              order or any threatened stop order.


                   (d)  Neither Seller nor Buyer shall be subject to

              any order, decree or injunction of a court or agency of 

                                  -84-<PAGE>







              competent jurisdiction which enjoins or prohibits the

              consummation of the Merger.


                   (e)  Each of Buyer and Seller shall have received,

              from counsel reasonably satisfactory to it, an opinion

              reasonably satisfactory in form and substance to it to

              the effect that the Merger will constitute a

              reorganization within the meaning of Section 368 of the

              Internal Revenue Code and that no gain or loss will be

              recognized by the stockholders of Seller to the extent

              they receive Buyer Common Stock solely in exchange for

              shares of Seller Common Stock.


                   6.02.  Conditions to Obligations of Seller To Effect

         the Merger.  The obligations of Seller to effect the Merger

         shall be subject to the fulfillment or waiver at or prior to

         the Effective Time of the following additional conditions:


                   (a)  Representations and Warranties.  The

              representations and warranties of Buyer set forth in

              Article III of this Agreement shall be true and correct

              in all material respects as of the date of this

              Agreement and as of the Effective Time (as though made

              on and as of the Effective Time except (i) to the extent

              such representations and warranties are by their express

              provisions made as of a specified date or period and

              (ii) for 

                                  -85-<PAGE>







              the effect of transactions contemplated by this

              Agreement) and Seller shall have received a certificate

              of the chairman or chief financial officer of Buyer to

              that effect.


                   (b)  Performance of Obligations.  Buyer shall have

              performed in all material respects all obligations

              required to be performed by it under this Agreement

              prior to the Effective Time, and Seller shall have

              received a certificate of the chairman or chief

              financial officer of Buyer to that effect.


                   6.03.  Conditions to Obligations of Buyer To Effect

         the Merger.  The obligations of Buyer to effect the Merger

         shall be subject to the fulfillment or waiver at or prior to

         the Effective Time of the following additional conditions:


                   (a)  Representations and Warranties.  The

              representations and warranties of Seller set forth in

              Article II of this Agreement shall be true and correct

              in all material respects as of the date of this

              Agreement and as of the Effective Time (as though made

              on and as of the Effective Time except (i) to the extent

              such representations and warranties are by their express

              provisions made as of a specific date or period and (ii)

              for the effect of transactions contemplated by this

              Agreement) and Buyer shall have received a certificate

              of the 

                                  -86-<PAGE>







              chairman of Seller and a certificate of the president

              and chief executive officer of Seller to that effect.


                   (b)  Performance of Obligations.  Seller shall have

              performed in all material respects all obligations

              required to be performed by it under this Agreement

              prior to the Effective Time, and Buyer shall have

              received a certificate of the chairman of Seller and a

              certificate of the president and chief executive officer

              of Seller to that effect.


                   (c)  Auditors' Opinion.  Buyer shall have received

              an opinion of Buyer Auditors addressed to Buyer,

              satisfactory in form and substance to Buyer, that the

              Merger will qualify for pooling-of-interests accounting

              treatment, which opinion shall not have been withdrawn.  


                                   ARTICLE VII

                        TERMINATION, AMENDMENT AND WAIVER


                   7.01.  Termination.  This Agreement may be

         terminated at any time prior to the Effective Time, whether

         before or after any requisite stockholder approval:


                   (a)  by mutual consent by the Executive Committee

              of the Board of Directors of Buyer and the Board of

              Directors of Seller;

                                  -87-<PAGE>








                   (b)  by the Executive Committee of the Board of

              Directors of Buyer or the Board of Directors of Seller

              at any time after the date that is twelve months after

              the date of this Agreement if the Merger shall not

              theretofore have been consummated (provided that the

              terminating party is not then in material breach of any

              representation, warranty, covenant or other agreement

              contained herein); 


                   (c)  by the Executive Committee of the Board of

              Directors of Buyer or the Board of Directors of Seller

              if (i) the Federal Reserve Board has denied approval of

              the Merger and such denial has become final and

              nonappealable or (ii) stockholders of Seller shall not

              have approved this Agreement at the Meeting following a

              favorable recommendation of Seller's Board of Directors;


                   (d)  by the Executive Committee of the Board of

              Directors of Buyer in the event of a material breach by

              Seller of any representation, warranty, covenant or

              other agreement contained in this Agreement, which

              breach is not cured within 30 days after written notice

              thereof to Seller by Buyer;


                   (e)  by the Executive Committee of the Board of

              Directors of Buyer in the event that (i) Buyer's Due 

                                  -88-<PAGE>







              Diligence Review of Seller and its Subsidiaries

              discloses matters the impact of which affects Seller and

              its Subsidiaries, taken as a whole, except as may have

              resulted from changes to laws and regulations or changes

              in economic conditions applicable to banking

              institutions generally, or in general interest rates

              that affect Seller and its Subsidiaries, taken as a

              whole, consistent with the manner in which changes in

              the general levels of interest rates since December 31,

              1994 have affected Seller and its Subsidiaries, taken as

              a whole, which the Executive Committee of the Board of

              Directors of Buyer in the good faith exercise of its

              reasonable judgment believes either (A) to be

              inconsistent in any material and adverse respect with

              any of the representations or warranties of Seller, or

              (B) (x) to be of such significance as to materially and

              adversely affect the Condition of Seller and its

              Subsidiaries, taken as a whole, or (y) to deviate

              materially and adversely from the financial statements

              for the year ended December 31, 1994 of Seller, (ii)

              Buyer notifies Seller of such matters within 5 business

              days of the expiration of the Due Diligence Period, and

              (iii) such matters (A) are not capable of being cured or

              (B) have not been cured within 30 days after written

              notice thereof to Seller by Buyer;

                                  -89-<PAGE>








                   (f)  by the Board of Directors of Seller in the event

              that (i) Seller's Due Diligence Review of Buyer and its

              Subsidiaries discloses matters the impact of which affects

              Buyer and its Subsidiaries, taken as a whole, except as

              may have resulted from changes to laws and regulations or

              changes in economic conditions applicable to banking

              institutions generally, or in general levels of interest

              rates that affect Buyer and its Subsidiaries, taken as a

              whole, consistent with the manner in which changes in the

              general levels of interest rates since December 31, 1994

              has affected Buyer and its Subsidiaries, taken as a whole,

              which the Board of Directors of Seller in the good faith

              exercise of its reasonable judgment believe either (A) to

              be inconsistent in any material and adverse respect with

              any of the representations or warranties of Buyer, or (B)

              (x) to be of such significance as to materially and

              adversely affect the Condition of Buyer and its

              Subsidiaries, taken as a whole, or (y) to deviate

              materially and adversely from the financial statement for

              the year ended December 31, 1994 of Buyer, (ii) Seller

              notifies Buyer of such matters within 5 business days of

              the expiration of the Due Diligence Period, and (iii) such

              matters (A) are not capable of being cured or (B) have not

              been cured within 30 days after written notice thereof to

              Buyer; 

                                  -90-<PAGE>








                   (g)  by the Board of Directors of Seller in the event

              of a material breach by Buyer of any representation,

              warranty, covenant or other agreement contained in this

              Agreement, which breach is not cured within 30 days after

              written notice thereof is given to Buyer by Seller; or


                   (h)  by the Executive Committee of the Board of

              Directors of Buyer pursuant to and in accordance with the

              provisions of Section 5.17 hereof.


                   7.02.  Effect of Termination.  In the event of

         termination of this Agreement as provided in Sections 7.01(a)

         through 7.01(c) and Sections 7.01(e), 7.01(f) and 7.01(h)

         above, this Agreement shall forthwith become void and there

         shall be no liability or obligation on the part of Buyer or

         Seller or their respective officers or directors except as set

         forth in the second sentence of Section 5.01(a) and in Section

         5.06.


                   7.03.  Amendment.  This Agreement and the Schedules

         hereto may be amended by the parties hereto, by action taken

         by or on behalf of their respective Boards of Directors, at

         any time before or after approval of this Agreement by the

         stockholders of Seller; provided, however, that after any 

                                  -91-<PAGE>







         such approval by the stockholders of Seller no such

         modification shall alter or change the amount or kind of

         consideration to be received by holders of Seller Common

         Stock as provided in this Agreement.  This Agreement may not

         be amended except by an instrument in writing signed on

         behalf of each of Buyer and Seller.


                   7.04.  Severability.  Any term, provision, covenant

         or restriction contained in this Agreement held by a court or

         a Regulatory Authority of competent jurisdiction to be

         invalid, void or unenforceable, shall be ineffective to the

         extent of such invalidity, voidness or unenforceability, but

         neither the remaining terms, provisions, covenants or

         restrictions contained in this Agreement nor the validity or

         enforceability thereof in any other jurisdiction shall be

         affected or impaired thereby.  Any term, provision, covenant

         or restriction contained in this Agreement that is so found

         to be so broad as to be unenforceable shall be interpreted to

         be as broad as is enforceable.


                   7.05.  Waiver.  Any term, condition or provision of

         this Agreement may be waived in writing at any time by the

         party which is, or whose stockholders are, entitled to the

         benefits thereof.

                                  -92-<PAGE>








                                  ARTICLE VIII

                               GENERAL PROVISIONS


                   8.01.  Non-Survival of Representations, Warranties

         and Agreements.  No investigation by the parties hereto made

         heretofore or hereafter shall affect the representations and

         warranties of the parties which are contained herein and each

         such representation and warranty shall survive such

         investigation.  Except as set forth below in this Section

         8.01, all representations, warranties and agreements in this

         Agreement of Buyer and Seller or in any instrument delivered

         by Buyer or Seller pursuant to or in connection with this

         Agreement shall expire at the Effective Time or upon

         termination of this Agreement in accordance with its terms

         or, in the case of any other such instrument, in accordance

         with the terms of such instrument.  In the event of

         consummation of the Merger, the agreements contained in or

         referred to in Sections 5.02(b), 5.07, 5.08, 5.09 and 5.12

         shall survive the Effective Time.  In the event of

         termination of this Agreement in accordance with its terms,

         the agreements contained in or referred to in the second

         sentence of Section 5.01(a), Section 5.06 and Section 7.02

         shall survive such termination.


                   8.02.  Notices.  All notices and other

         communications hereunder shall be in writing and shall be

         deemed to be duly received (vi) on the date given if

         delivered personally 

                                  -93-<PAGE>







         or (vii) upon confirmation of receipt, if by facsimile

         transmission or (viii) on the date received if mailed by

         registered or certified mail (return receipt requested), or

         (iv) on the business date after being delivered to a

         reputable overnight delivery service, if by such service, to

         the parties at the following addresses (or at such other

         address for a party as shall be specified by like notice):


                       (i)  if to Buyer:

                            Mercantile Bancorporation Inc.
                            Mercantile Tower
                            P.O. Box 524
                            St. Louis, Missouri  63166-0524
                            Attention:  John W. Rowe
                                        Executive Vice President,
                                        Mercantile Bank of St. Louis,
                                        National Association

                       Copies to:

                            Jon W. Bilstrom, Esq.
                            General Counsel
                            Mercantile Bancorporation Inc.
                            Mercantile Tower
                            P.O. Box 524
                            St. Louis, Missouri  63166-0524

                       and

                            Wachtell, Lipton, Rosen & Katz
                            51 West 52nd Street 
                            New York, New York  10019
                            Attention:  Edward D. Herlihy, Esq.
                            Telecopy:  (212) 403-2000

                                  -94-<PAGE>







                       (ii)  if to Seller:

                            Hawkeye Bancorporation
                            222 Equitable Building
                            604 Locust Street
                            Des Moines, Iowa  50309-3723
                            Attention:  Robert W. Murray
                                        President and Chief Executive
                                        Officer 

                       Copies to:

                            Baird, Holm, McEachen, Pedersen,
                              Hamann & Strasheim
                            1500 Woodmen Tower
                            Omaha, Nebraska  68102-2068
                            Attention:  John S. Zeilinger, Esq.


                   8.03.  Miscellaneous.  This Agreement (including

         the Schedules and other written documents referred to herein

         or provided hereunder) (i) constitutes the entire agreement

         and supersedes all other prior agreements and understandings,

         both written and oral, among the parties, or any of them,

         with respect to the subject matter hereof, including any

         confidentiality agreement between the parties hereto, (ii) is

         not intended to confer upon any person not a party hereto any

         rights or remedies hereunder, (iii) shall not be assigned by

         operation of law or otherwise and (iv) shall be governed in

         all respects by the laws of the State of Missouri, except as

         otherwise specifically provided herein or required by the

         Iowa Act.  Nothing in this Agreement shall be construed to

         require any party (or any subsidiary or affiliate of any

         party) to take any action or fail to take any action in

         violation of applicable law, rule or regulation.  This

         Agreement 

                                  -95-<PAGE>







         may be executed in counterparts which together shall

         constitute a single agreement.














































                                  -96-<PAGE>







                   IN WITNESS WHEREOF, Buyer and Seller have caused

         this Agreement to be signed and, by such signature,

         acknowledged by their respective officers thereunto duly

         authorized, and such signatures to be attested to by their

         respective officers thereunto duly authorized, all as of the

         date first written above.

         Attest:                         MERCANTILE BANCORPORATION INC.



         /s/ Jon W. Bilstrom             By:/s/ Thomas H. Jacobsen         
         Name:   Jon W. Bilstrom         Name:   Thomas H. Jacobsen
         Title:  General Counsel         Title:  Chairman, President &
                                                   Chief Executive Officer



         Attest:                         HAWKEYE BANCORPORATION



         /s/ R. Douglas Fisher           By: /s/ Robert W. Murray             
         Name:   R. Douglas Fisher          Name:  Robert W. Murray
         Title:  Senior Vice President,     Title: Chief Executive Officer,
                   Credit Administration             Chief Operating Officer &
                   Secretary                         Chief Financial Officer

















                                     -97-










                             STOCK OPTION AGREEMENT


                   STOCK OPTION AGREEMENT ("Option Agreement") dated

         August 4, 1995, between MERCANTILE BANCORPORATION INC.

         ("Buyer"), a Missouri corporation registered as a bank hold-

         ing company under the Bank Holding Company Act of 1956, as

         amended (the "Holding Company Act"), and HAWKEYE BANCORPORA-

         TION ("Seller"), an Iowa corporation registered as a bank

         holding company under the Holding Company Act.


                              W I T N E S S E T H:


                   WHEREAS, the Executive Committee of the Board of

         Directors of Buyer and the Board of Directors of Seller have

         approved an Agreement and Plan of Reorganization dated as of

         even date herewith (the "Merger Agreement") providing for the

         merger of Seller with and into a wholly owned subsidiary of

         Buyer;


                   WHEREAS, as a condition to Buyer's entering into

         the Merger Agreement, Buyer has required that Seller agree,

         and Seller has agreed, to grant to Buyer the option set forth

         herein to purchase authorized but unissued shares of Seller

         Common Stock;


                   NOW, THEREFORE, in consideration of the premises

         herein contained, the parties agree as follows:<PAGE>







                   1.  Definitions.


                   Capitalized terms used but not defined herein shall

         have the same meanings as in the Merger Agreement.  


                   2.  Grant of Option.


                   Subject to the terms and conditions set forth

         herein, Seller hereby grants to Buyer an option (the "Op-

         tion") to purchase up to 2,678,000 authorized and unissued

         shares of Seller Common Stock at a price of $22 per share

         (the "Purchase Price") payable in cash as provided in Section

         4 hereof.


                   3.  Exercise of Option.


                   (a)  Buyer may exercise the Option, in whole or in

         part, at any time or from time to time if a Purchase Event

         (as defined below) shall have occurred; provided, however,

         that (i) to the extent the Option shall not have been exer-

         cised, it shall terminate and be of no further force and ef-

         fect upon the earliest to occur of the Effective Time of the

         Merger and the termination of the Merger Agreement in ac-

         cordance with Sections 7.01(a) through 7.01(c) thereof, pro-

         vided that if such termination follows an Extension Event (as

         defined below), the Option shall not terminate until the date






                                      -2-<PAGE>







         that is 12 months following such termination; (ii) if the Op-

         tion cannot be exercised on such day because of any injunc-

         tion, order or similar restraint issued by a court of compe-

         tent jurisdiction, the Option shall expire on the 30th busi-

         ness day after such injunction, order or restraint shall have

         been dissolved or when such injunction, order or restraint

         shall have become permanent and no longer subject to appeal,

         as the case may be; and (iii) that any such exercise shall be

         subject to compliance with applicable law, including the

         Holding Company Act.


                   (b)  As used herein, a "Purchase Event" shall mean

         any of the following events:


                   (i)  Seller or any of its Subsidiaries, without

              having received prior written consent from Buyer, shall

              have entered into, authorized, recommended, proposed or

              publicly announced its intention to enter into, autho-

              rize, recommend, or propose, an agreement, arrangement

              or understanding with any person (other than Buyer or

              any of its Subsidiaries) to (A) effect a merger or con-

              solidation or similar transaction involving Seller or

              any of its Subsidiaries, (B) purchase, lease or other-

              wise acquire 15% or more of the assets of Seller or any

              of its Subsidiaries or (C) purchase or otherwise acquire





                                      -3-<PAGE>







              (including by way of merger, consolidation, share ex-

              change or similar transaction) Beneficial Ownership of

              securities representing 10% or more of the voting power

              of Seller or any of its Subsidiaries;


                  (ii)  any person (other than Buyer or any Subsidiary

              of Buyer, or Seller or any Subsidiary of Seller in a fi-

              duciary capacity) shall have acquired Beneficial Owner-

              ship or the right to acquire Beneficial Ownership of 10%

              or more of the voting power of Seller; or


                 (iii)  Seller's Board of Directors shall have with-

              drawn or modified in a manner adverse to Buyer the rec-

              ommendation of Seller's Board of Directors with respect

              to the Merger Agreement, in each case after an Extension

              Event; or


                  (iv)  the holders of Seller Common Stock shall not

              have approved the Merger Agreement at the Meeting, or

              such Meeting shall not have been held or shall have been

              cancelled prior to termination of the Merger Agreement

              in accordance with its terms, in each case after an Ex-

              tension Event.


                   (c)  As used herein, the term "Extension Event"

         shall mean any of the following events: 





                                      -4-<PAGE>







                   (i)  a Purchase Event of the type specified in

                   clauses (b)(i) and (b)(ii) above;


                  (ii)  any person (other than Buyer or any of its

              Subsidiaries) shall have "commenced" (as such term is

              defined in Rule 14d-2 under the Exchange Act), or shall

              have filed a registration statement under the Securities

              Act with respect to, a tender offer or exchange offer to

              purchase shares of Seller Common Stock such that, upon

              consummation of such offer, such person would have Ben-

              eficial Ownership (as defined below) or the right to ac-

              quire Beneficial Ownership of 10% or more of the voting

              power of Seller; or,


                 (iii)  any person (other than Buyer or any Subsidiary

              of Buyer, or Seller or any Subsidiary of Seller in a fi-

              duciary capacity) shall have publicly announced its

              willingness, or shall have publicly announced a pro-

              posal, or publicly disclosed an intention to make a pro-

              posal, (x) to make an offer described in clause (ii)

              above or (y) to engage in a transaction described in

              clause (i) above. 


                   (d)  As used herein, the terms "Beneficial Owner-

         ship" and "Beneficially Own" shall have the meanings ascribed

         to them in Rule 13d-3 under the Exchange Act.




                                      -5-<PAGE>







                   (e)  In the event Buyer wishes to exercise the Op-

         tion, it shall deliver to Seller a written notice (the date

         of which being herein referred to as the "Notice Date")

         specifying (i) the total number of shares it intends to pur-

         chase pursuant to such exercise and (ii) a place and date not

         earlier than three business days nor later than 60 calendar

         days from the Notice Date for the closing of such purchase

         (the "Closing Date").


                   4.  Payment and Delivery of Certificates.


                   (a)  At the closing referred to in Section 3

         hereof, Buyer shall pay to Seller the aggregate purchase

         price for the shares of Seller Common Stock purchased pursu-

         ant to the exercise of the Option in immediately available

         funds by wire transfer to a bank account designated by

         Seller.


                   (b)  At such closing, simultaneously with the de-

         livery of cash as provided in Section 4(a), Seller shall de-

         liver to Buyer a certificate or certificates representing the

         number of shares of Seller Common Stock purchased by Buyer,

         registered in the name of Buyer or a nominee designated in

         writing by Buyer, and Buyer shall deliver to Seller a letter

         agreeing that Buyer shall not offer to sell, pledge or other-

         wise dispose of such shares in violation of applicable law or

         the provisions of this Option Agreement.


                                      -6-<PAGE>








                   (c)  If at the time of issuance of any Seller Com-

         mon Stock pursuant to any exercise of the Option, Seller

         shall have issued any share purchase rights or similar secu-

         rities to holders of Seller Common Stock, then each such

         share of Seller Common Stock shall also represent rights with

         terms substantially the same as and at least as favorable to

         Buyer as those issued to other holders of Seller Common

         Stock.


                   (d)  Certificates for Seller Common Stock delivered

         at any closing hereunder shall be endorsed with a restrictive

         legend which shall read substantially as follows:


                   The transfer of the shares represented by this cer-
                   tificate is subject to certain provisions of an
                   agreement between the registered holder hereof and
                   Hawkeye Bancorporation, a copy of which is on file
                   at the principal office of Hawkeye Bancorporation,
                   and to resale restrictions arising under the Secu-
                   rities Act of 1933 and any applicable state secu-
                   rities laws.  A copy of such agreement will be
                   provided to the holder hereof without charge upon
                   receipt by Hawkeye Bancorporation of a written re-
                   quest therefor.

         It is understood and agreed that the above legend shall be

         removed by delivery of substitute certificate(s) without such

         legend if Buyer shall have delivered to Seller an opinion of

         counsel, in form and substance reasonably satisfactory to

         Seller and its counsel, to the effect that such legend is not

         required for purposes of the Securities Act and any ap-

         plicable state securities laws.


                                      -7-<PAGE>








                   5.  Authorization, etc.


                   (a)  Seller hereby represents and warrants to Buyer

         that: 


                   (i)  Seller has full corporate authority to execute

              and deliver this Option Agreement and, subject to Sec-

              tion 11(i), to consummate the transactions contemplated

              hereby;   


                  (ii)  such execution, delivery and consummation have

              been authorized by the Board of Directors of Seller, and

              no other corporate proceedings are necessary therefor; 


                  (iii) this Option Agreement has been duly and val-

              idly executed and delivered and represents a valid and

              legally binding obligation of Seller, enforceable

              against Seller in accordance with its terms; and


                   (iv) Seller has taken all necessary corporate ac-

              tion to authorize and reserve and, subject to Section

              11(i), permit it to issue and, at all times from the

              date hereof through the date of the exercise in full or

              the expiration or termination of the Option, shall have

              reserved for issuance upon exercise of the Option, 

                          shares of Seller Common Stock, all of which,

              upon issuance pursuant hereto, shall be duly authorized,



                                      -8-<PAGE>







              validly issued, fully paid and nonassessable, and shall

              be delivered free and clear of all claims, liens, encum-

              brances, restrictions (other than federal and state se-

              curities restrictions) and security interests and not

              subject to any preemptive rights.  



                   (b)  Buyer hereby represents and warrants to Seller

         that:  



                   (i)  Buyer has full corporate authority to execute

              and deliver this Option Agreement and, subject to Sec-

              tion 11(i), to consummate the transactions contemplated

              hereby; 



                  (ii)  such execution, delivery and consummation have

              been authorized by all requisite corporate action by

              Buyer, and no other corporate proceedings are necessary

              therefor; 



                 (iii)  this Option Agreement has been duly and val-

              idly executed and delivered and represents a valid and

              legally binding obligation of Buyer, enforceable against

              Buyer in accordance with its terms; and







                                      -9-<PAGE>







                  (iv)  any Seller Common Stock or other securities

              acquired by Buyer upon exercise of the Option will not

              be taken with a view to the public distribution thereof

              and will not be transferred or otherwise disposed of ex-

              cept in compliance with the Securities Act.


                   6.  Adjustment upon Changes in Capitalization.


                   In the event of any change in Seller Common Stock

         by reason of stock dividends, split-ups, recapitalizations or

         the like, the type and number of shares subject to the Op-

         tion, and the purchase price per share, as the case may be,

         shall be adjusted appropriately.  In the event that any addi-

         tional shares of Seller Common Stock are issued after the

         date of this Option Agreement (other than pursuant to an

         event described in the preceding sentence or pursuant to this

         Option Agreement), the number of shares of Seller Common

         Stock subject to the Option shall be adjusted so that, after

         such issuance, it equals at least 19.9% of the number of

         shares of Seller Common Stock then issued and outstanding

         (without considering any shares subject to or issued pursuant

         to the Option).











                                      -10-<PAGE>







                   7.  Repurchase.


                   (a)  Subject to Section 11(i), at the request of

         Buyer at any time commencing upon the occurrence of a Pur-

         chase Event and ending 13 months immediately thereafter (the

         "Repurchase Period"), Seller (or any successor entity

         thereof) shall repurchase the Option from Buyer together with

         all (but not less than all, subject to Section 10) shares of

         Seller Common Stock purchased by Buyer pursuant thereto with

         respect to which Buyer then has Beneficial Ownership, at a

         price (per share, the "Per Share Repurchase Price") equal to

         the sum of:


                   (i)  The exercise price paid by Buyer for any

              shares of Seller Common Stock acquired pursuant to the

              Option;


                  (ii)  The difference between (A) the "Market/Tender

              Offer Price" for shares of Seller Common Stock (defined

              as the higher of (x) the highest price per share at

              which a tender or exchange offer has been made for

              shares of Seller Common Stock or (y) the highest closing

              mean of the "bid" and the "ask" price per share of

              Seller Common Stock reported by NASDAQ, the automated

              quotation system of the National Association of Securi-

              ties Dealers, Inc., for any day within that portion of

              the Repurchase Period which precedes the date Buyer


                                      -11-<PAGE>







              gives notice of the required repurchase under this Sec-

              tion 7) and (B) the exercise price as determined pursu-

              ant to Section 2 hereof (subject to adjustment as pro-

              vided in Section 6), multiplied by the number of shares

              of Seller Common Stock with respect to which the Option

              has not been exercised, but only if the Market/Tender

              Offer Price is greater than such exercise price;


                 (iii)  The difference between the Market/Tender Offer

              Price and the exercise price paid by Buyer for any

              shares of Seller Common Stock purchased pursuant to the

              exercise of the Option, multiplied by the number of

              shares so purchased, but only if the Market/Tender Offer

              Price is greater than such exercise price; and


                  (iv)  Buyer's reasonable out-of-pocket expenses in-

              curred in connection with the transactions contemplated

              by the Merger Agreement, including, without limitation,

              legal, accounting and investment banking fees.


                   (b)  In the event Buyer exercises its rights under

         this Section 7, Seller shall, within 10 business days there-

         after, pay the required amount to Buyer by wire transfer of

         immediately available funds to an account designated by Buyer








                                      -12-<PAGE>







         and Buyer shall surrender to Seller the Option and the cer-

         tificates evidencing the shares of Seller Common Stock pur-

         chased thereunder with respect to which Buyer then has Ben-

         eficial Ownership, and Buyer shall warrant that it has sole

         record and Beneficial Ownership of such shares and that the

         same are free and clear of all liens, claims, charges, re-

         strictions and encumbrances of any kind whatsoever.  


                   (c)  In determining the Market/Tender Offer Price,

         the value of any consideration other than cash shall be de-

         termined by an independent nationally recognized investment

         banking firm selected by Buyer and reasonably acceptable to

         Seller.


                   8.  Repurchase at Option of Seller and First Re-

         fusal.


                   (a)  Except to the extent that Buyer shall have

         previously exercised its rights under Section 7, at the re-

         quest of Seller during the six-month period commencing 13

         months following the first occurrence of a Purchase Event,

         Seller may repurchase from Buyer, and Buyer shall sell to

         Seller, all (but not less than all, subject to Section 10) of

         the Seller Common Stock acquired by Buyer pursuant hereto and

         with respect to which Buyer has Beneficial Ownership at the

         time of such repurchase at a price per share equal to the

         greater of (i) 110% of the Market/Tender Offer Price per


                                      -13-<PAGE>







         share, (ii) the Per Share Repurchase Price or (iii) the sum

         of (A) the aggregate Purchase Price of the shares so repur-

         chased plus (B)  interest on the aggregate Purchase Price

         paid for the shares so repurchased from the date of purchase

         to the date of repurchase at the highest rate of interest an-

         nounced by Buyer as its prime or base lending or reference

         rate during such period, less any dividends received on the

         shares so repurchased, plus (C) Buyer's reasonable out-of-

         pocket expenses incurred in connection with the transactions

         contemplated by the Merger Agreement, including, without

         limitation, legal, accounting and investment banking fees.

         Any repurchase under this Section 8(a) shall be consummated

         in accordance with Section 7(b).



                   (b)  If, at any time after the occurrence of a Pur-

         chase Event and prior to the earlier of (i) the expiration of

         18 months immediately following such Purchase Event or (ii)

         the expiration or termination of the Option, Buyer shall de-

         sire to sell, assign, transfer or otherwise dispose of the

         Option or all or any of the shares of Seller Common Stock ac-

         quired by it pursuant to the Option, it shall give Seller

         written notice of the proposed transaction (an "Offeror's No-

         tice"), identifying the proposed transferee, and setting

         forth the terms of the proposed transaction.  An Offeror's

         Notice shall be deemed an offer by Buyer to Seller, which may



                                      -14-<PAGE>







         be accepted within 10 business days of the receipt of such

         Offeror's Notice, on the same terms and conditions and at the

         same price at which Buyer is proposing to transfer the Option

         or such shares to a third party.  The purchase of the Option

         or any such shares by Seller shall be closed within 10 busi-

         ness days of the date of the acceptance of the offer and the

         purchase price shall be paid to Buyer by wire transfer of im-

         mediately available funds to an account designated by Buyer.

         In the event of the failure or refusal of Seller to purchase

         the Option or all the shares covered by the Offeror's Notice

         or if the Board or any other Regulatory Authority disapproves

         Seller's proposed purchase of the Option or such shares,

         Buyer may, within 60 days from the date of the Offeror's No-

         tice, sell all, but not less than all, of the Option or such

         shares to such third party at no less than the price speci-

         fied and on terms no more favorable to the purchaser than

         those set forth in the Offeror's Notice.  The requirements of

         this Section 8(b) shall not apply to (i) any disposition as a

         result of which the proposed transferee would Beneficially

         Own not more than 2% of the voting power of Seller or (ii)

         any disposition of Seller Common Stock by a person to whom

         Buyer has sold shares of Seller Common Stock issued upon ex-

         ercise of the Option.







                                      -15-<PAGE>







                   9.  Registration Rights.


                   At any time after a Purchase Event, Seller shall,

         if requested by any holder or beneficial owner of shares of

         Seller Common Stock issued upon exercise of the Option (ex-

         cept any beneficial holder who acquired all of such holder's

         shares in a transaction exempt from the requirements of Sec-

         tion 8(b) by reason of clause (i) thereof) (each a "Holder"),

         as expeditiously as possible file a registration statement on

         a form for general use under the Securities Act if necessary

         in order to permit the sale or other disposition of the

         shares of Seller Common Stock that have been acquired upon

         exercise of the Option in accordance with the intended method

         of sale or other disposition requested by any such Holder (it

         being understood and agreed that any such sale or other dis-

         position shall be effected on a widely distributed basis so

         that, upon consummation thereof, no purchaser or transferee

         shall Beneficially Own more than 2% of the shares of Seller

         Common Stock then outstanding).  Each such Holder shall pro-

         vide all information reasonably requested by Seller for in-

         clusion in any registration statement to be filed hereunder.

         Seller shall use its best efforts to cause such registration

         statement first to become effective and then to remain effec-

         tive for such period not in excess of 180 days from the day

         such registration statement first becomes effective as may be




                                      -16-<PAGE>







         reasonably necessary to effect such sales or other disposi-

         tions.  The registration effected under this Section 9 shall

         be at Seller's expense except for underwriting commissions

         and the fees and disbursements of such Holders' counsel at-

         tributable to the registration of such Seller Common Stock.

         In no event shall Seller be required to effect more than one

         registration hereunder.  The filing of the registration

         statement hereunder may be delayed for such period of time as

         may reasonably be required to facilitate any public distribu-

         tion by Seller of Seller Common Stock or if a special audit

         of Seller would otherwise be required in connection there-

         with.  If requested by any such Holder in connection with

         such registration, Seller shall become a party to any under-

         writing agreement relating to the sale of such shares, but

         only to the extent of obligating itself in respect of repre-

         sentations, warranties, indemnities and other agreements cus-

         tomarily included in such underwriting agreements for parties

         similarly situated.  Upon receiving any request for registra-

         tion under this Section 9 from any Holder, Seller agrees to

         send a copy thereof to any other person known to Seller to be

         entitled to registration rights under this Section 9, in each

         case by promptly mailing the same, postage prepaid, to the

         address of record of the persons entitled to receive such

         copies.





                                      -17-<PAGE>







                   10.  Severability.


                   Any term, provision, covenant or restriction con-

         tained in this Option Agreement held by a court or a Regula-

         tory Authority of competent jurisdiction to be invalid, void

         or unenforceable, shall be ineffective to the extent of such

         invalidity, voidness or unenforceability, but neither the re-

         maining terms, provisions, covenants or restrictions con-

         tained in this Option Agreement nor the validity or enforce-

         ability thereof in any other jurisdiction shall be affected

         or impaired thereby.  Any term, provision, covenant or re-

         striction contained in this Option Agreement that is so found

         to be so broad as to be unenforceable shall be interpreted to

         be as broad as is enforceable.  If for any reason such court

         or Regulatory Authority determines that applicable law will

         not permit Buyer or any other person to acquire, or Seller to

         repurchase or purchase, the full number of shares of Seller

         Common Stock provided in Section 2 hereof (as adjusted pursu-

         ant to Section 6 hereof), it is the express intention of the

         parties hereto to allow Buyer or such other person to ac-

         quire, or Seller to repurchase or purchase, such lesser num-

         ber of shares as may be permissible, without any amendment or

         modification hereof.








                                      -18-<PAGE>







                   11.  Miscellaneous.


                   (a)  Expenses.  Each of the parties hereto shall

         pay all costs and expenses incurred by it or on its behalf in

         connection with the transactions contemplated hereunder, in-

         cluding fees and expenses of its own financial consultants,

         investment bankers, accountants and counsel, except as other-

         wise provided herein.


                   (b)  Entire Agreement.  Except as otherwise ex-

         pressly provided herein, this Option Agreement and the Merger

         Agreement contain the entire agreement between the parties

         with respect to the transactions contemplated hereunder and

         supersedes all prior arrangements or understandings with re-

         spect thereto, written or oral.  


                   (c)  Successors; No Third Party Beneficiaries.  The

         terms and conditions of this Option Agreement shall inure to

         the benefit of and be binding upon the parties hereto and

         their respective successors and permitted assigns.  Nothing

         in this Option Agreement, expressed or implied, is intended

         to confer upon any party, other than the parties hereto, and

         their respective successors and assigns, any rights, reme-

         dies, obligations, or liabilities under or by reason of this

         Option Agreement, except as expressly provided herein.






                                      -19-<PAGE>







                   (d)  Assignment.  Other than as provided in Sec-

         tions 8 and 9 hereof, neither of the parties hereto may sell,

         transfer, assign or otherwise dispose of any of its rights or

         obligations under this Option Agreement or the Option created

         hereunder to any other person (whether by operation of law or

         otherwise), without the express written consent of the other

         party.


                   (e)  Notices.  All notices or other communications

         which are required or permitted hereunder shall be in writing

         and sufficient if delivered in accordance with Section 8.02

         of the Merger Agreement (which is incorporated herein by ref-

         erence).


                   (f)  Counterparts.  This Option Agreement may be

         executed in counterparts, and each such counterpart shall be

         deemed to be an original instrument, but both such counter-

         parts together shall constitute but one agreement.


                   (g)  Specific Performance.  The parties hereto

         agree that if for any reason Buyer or Seller shall have

         failed to perform its obligations under this Option Agree-

         ment, then either party hereto seeking to enforce this Option

         Agreement against such non-performing party shall be entitled

         to specific performance and injunctive and other equitable






                                      -20-<PAGE>







         relief, and the parties hereto further agree to waive any re-

         quirement for the securing or posting of any bond in connec-

         tion with the obtaining of any such injunctive or other equi-

         table relief.  This provision is without prejudice to any

         other rights that either party hereto may have against the

         other party hereto for any failure to perform its obligations

         under this Option Agreement.


                   (h)  Governing Law.  This Option Agreement shall be

         governed by and construed in accordance with the laws of the

         State of Missouri applicable to agreements made and entirely

         to be performed within such state.  Nothing in this Option

         Agreement shall be construed to require any party (or any

         subsidiary or affiliate of any party) to take any action or

         fail to take any action in violation of applicable law, rule

         or regulation.


                   (i)  Regulatory Approvals; Section 16(b).  If, in

         connection with (A) the exercise of the Option under Sec-

         tion 3 or a sale by Buyer to a third party under Section 8,

         (B) a repurchase by Seller under Section 7 or a repurchase or

         purchase by Seller under Section 8, prior notification to or

         approval of the Board or any other Regulatory Authority is

         required, then the required notice or application for ap-

         proval shall be promptly filed and expeditiously processed

         and periods of time that otherwise would run pursuant to such



                                      -21-<PAGE>







         Sections shall run instead from the date on which any such

         required notification period has expired or been terminated

         or such approval has been obtained, and in either event, any

         requisite waiting period shall have passed.  In the case of

         clause (A) of this subsection (i), such filing shall be made

         by Buyer, and in the case of clause (B) of this subsection

         (i), such filing shall be made by Seller, provided that each

         of Buyer and Seller shall use its best efforts to make all

         filings with, and to obtain consents of, all third parties

         and Regulatory Authorities necessary to the consummation of

         the transactions contemplated hereby, including without

         limitation applying to the Board under the Holding Company

         Act for approval to acquire the shares issuable hereunder.

         Periods of time that otherwise would run pursuant to Sections

         3, 7 or 8 shall also be extended to the extent necessary to

         avoid liability under Section 16(b) of the Exchange Act.


                   (j)  No Breach of Merger Agreement Authorized.

         Nothing contained in this Option Agreement shall be deemed to

         authorize Seller to issue any shares of Seller Common Stock

         in breach of, or otherwise breach any of, the provisions of

         the Merger Agreement.










                                      -22-<PAGE>







                   (k)  Waiver and Amendment.  Any provision of this

         Agreement may be waived at any time by the party that is en-

         titled to the benefits of such provision.  This Option Agree-

         ment may not be modified, amended, altered or supplemented

         except upon the execution and delivery of a written agreement

         executed by the parties hereto.









































                                      -23-<PAGE>









                   IN WITNESS WHEREOF, each of the parties hereto has

         executed this Option Agreement as of the date first written

         above.


                                       MERCANTILE BANCORPORATION INC.



                                       By: /s/ John W. Rowe           
                                          Name:   John W. Rowe
                                          Title:  Executive Vice President
                                                  Mercantile Bank of St. Louis
                                                    National Association


                                       HAWKEYE BANCORPORATION



                                       By: /s/ Robert W. Murray      
                                          Name:  Robert W. Murray
                                          Title: Chief Executive Officer,
                                                   Chief Operating Officer
                                                   & Chief Financial Officer 























                                      -24-





        
        Mercantile           Mercantile Tower         [Mercantile Bancorporation
        Bancorporation       P.O. Box 524              Inc. Logo]
        Inc.                 St. Louis, MO  63155-0524
                                      
        JON W. BILSTROM
        General Counsel
        314-425-8180

                                 October 19, 1995



         Board of Directors
         Mercantile Bancorporation Inc.
         P.O. Box 524
         St. Louis, Missouri  63166-0524

         Gentlemen:

                   In connection with the proposed registration under
         the Securities Act of 1933, as amended, of up to 7,996,952
         shares of common stock, par value $5.00 per share
         (collectively, the "Shares"), of Mercantile Bancorporation
         Inc., a Missouri corporation (the "Company"), which are to be
         issued by the Company upon consummation of the merger (the
         "Merger") of Hawkeye Bancorporation, an Iowa corporation, with
         and into Mercantile Bancorporation Inc. of Iowa, an Iowa
         corporation, I have examined such corporate records and other
         documents, including the Registration Statement on Form S-4
         relating to the Shares (together with the Proxy Statement/
         Prospectus contained in such Registration Statement, and any
         amendments or supplements thereto, the "Registration
         Statement") and have reviewed such matters of law as I have
         deemed necessary or appropriate for this opinion.  Based on
         such examination and review, it is my opinion that, when issued
         upon consummation of the Merger as contemplated by the
         Registration Statement, the Shares will be duly authorized,
         validly issued, fully paid and nonassessable.

                   I consent to be named in the Registration Statement
         as the attorney who passed upon the validity of the Shares, and
         to the filing of a copy of this opinion as an exhibit to the
         Registration Statement.

                                            Sincerely,
                                           

                                            /s/ Jon W. Bilstrom
                                            
























                 [LETTERHEAD OF WACHTELL, LIPTON, ROSEN & KATZ]





                        Dated the Effective Date of the
                           Proxy Statement/Prospectus




         Mercantile Bancorporation Inc.
         P.O. Box 524
         St. Louis, Missouri  63166-0524


         Gentlemen:

                   We have acted as special counsel to Mercantile Ban-
         corporation Inc., a Missouri corporation ("MBI"), in connec-
         tion with the proposed merger (the "Merger") of Hawkeye Ban-
         corporation, an Iowa corporation ("Hawkeye"), with and into
         Mercantile Bancorporation Inc. of Iowa, an Iowa corporation
         and a wholly-owned direct subsidiary of MBI ("Merger Sub"),
         upon the terms and conditions set forth in the Agreement and
         Plan of Reorganization, dated August 4, 1995 (the "Agree-
         ment"), by and between MBI and Hawkeye.  At your request, in
         connection with the filing by MBI of the Registration State-
         ment on Form S-4 (the "Registration Statement") to be filed with
         the Securities and Exchange Commission under the Securities Act
         Act of 1933, as amended (the "Act"),  in respect of
         the shares of MBI Common Stock to be issued in the Merger and
         the preliminary Proxy Statement/Prospectus of MBI and Hawkeye
         filed with the Securities Exchange Commission on October 23,
         1995 (the "Proxy Statement/Prospectus") included as part
         thereof, we are rendering our opinion concerning certain fed-
         eral income tax consequences of the Merger.  <PAGE>






         Mercantile Bancorporation Inc.
         Page 2



                   For purposes of the opinion set forth below, we
         have relied, with the consent of MBI and the consent of Hawk-
         eye, upon the accuracy and completeness of the statements and
         representations (which statements and representations we have
         neither investigated nor verified) contained, respectively,
         in the certificates of the officers of MBI, Merger Sub and
         Hawkeye (copies of which are attached hereto and which are
         incorporated herein by reference), and have assumed that such
         certificates will be complete and accurate as of the Effec-
         tive Time.  We have also relied upon the accuracy of the
         Proxy Statement/Prospectus.  Any capitalized term used and
         not defined herein has the meaning given to it in the Proxy
         Statement/Prospectus or the appendices thereto.  

                   We have also assumed that the transactions contem-
         plated by the Agreement will be consummated in accordance
         therewith and as described in the Proxy Statement/Prospectus
         and that the Merger will qualify as a statutory merger under
         the applicable laws of the State of Iowa and the United
         States.

                   Based upon and subject to the foregoing, it is our
         opinion that, under currently applicable law, the Merger will
         constitute a reorganization within the meaning of Section
         368(a) of the Internal Revenue Code of 1986, as amended (the
         "Code"), and that, accordingly, the following will be all the
         material federal income tax consequences of the Merger:

             (i)   No gain or loss will be recognized by Hawkeye,
                   Merger Sub or MBI as a result of the Merger.

             (ii)  Hawkeye shareholders will recognize no gain or loss
                   as a result of the exchange of their Hawkeye Common
                   Stock solely for shares of MBI Common Stock pursu-
                   ant to the Merger, except with respect to cash re-
                   ceived in lieu of fractional shares, if any, as
                   discussed below.

             (iii) A holder of shares of Hawkeye Common Stock who re-
                   ceives cash in the Merger in lieu of a fractional
                   share interest of MBI Common Stock will be treated
                   as if the fractional shares were received in ex-
                   change and then redeemed by MBI.  A holder of
                   shares of Hawkeye Common Stock will be treated as
                   if the shareholder sold his or her fractional share
                   of MBI Common Stock for the amount of cash received<PAGE>






         Mercantile Bancorporation Inc.
         Page 3



                   and will therefore recognize gain (or loss) to the
                   extent that the amount of cash received exceeds (or
                   is less than) the tax basis of the fractional
                   share.  Such gain or loss will be capital gain or
                   loss if the shares of Hawkeye Common Stock were
                   held as capital assets and will be long-term capi-
                   tal gain or loss if the holding period of the
                   shares of Hawkeye Common Stock so exchanged was
                   more than one year.

             (iv)  The aggregate adjusted tax basis of the MBI Common
                   Stock received by a shareholder of Hawkeye in the
                   Merger, including for the purpose of (iii) above
                   the tax basis of any fractional share interest,
                   will be equal to the aggregate adjusted tax basis
                   of the respective shares of Hawkeye Common Stock
                   surrendered.

             (v)   The holding period of the shares of MBI Common
                   Stock received by a shareholder of Hawkeye in the
                   Merger, including for purposes of (iii) above the
                   holding period of any fractional share interest,
                   will include the holding period of the respective
                   shares of Hawkeye Common Stock exchanged therefor,
                   provided the shares of Hawkeye Common Stock were
                   held as capital assets.

              (vi) A Hawkeye shareholder who receives only cash as a
                   result of the exercise of dissenters' rights will
                   realize gain or loss for federal income tax pur-
                   poses (determined separately as to each block of
                   Hawkeye Common Stock exchanged) in an amount equal
                   to the difference between (x) the amount of cash
                   received by such shareholder, and (y) such
                   shareholder's tax basis for the shares of Hawkeye
                   Common Stock surrendered in exchange therefor, pro-
                   vided that the cash payment does not have the ef-
                   fect of the distribution of a dividend.  Any such
                   gain or loss will be recognized for federal income
                   tax purposes and will be treated as capital gain or
                   loss, provided the shares of Hawkeye Common Stock
                   were held as capital assets.  However, if the cash
                   payment does have the effect of the distribution of
                   a dividend, the amount of taxable income recognized
                   generally will equal the amount of cash received;<PAGE>






         Mercantile Bancorporation Inc.
         Page 4



                   such income generally will be taxable as a divi-
                   dend, and no loss (or other recovery of such
                   shareholder's tax basis for the shares of Hawkeye
                   Common Stock surrendered in the exchange) generally
                   will be recognized by such shareholder.  The deter-
                   mination of whether a cash payment has the effect
                   of the distribution of a dividend will be made pur-
                   suant to the provisions and limitations of Section
                   302 of the Code, taking into account the con-
                   structive stock ownership rules of Section 318 of
                   the Code.

                   This opinion may not be applicable to Hawkeye
         shareholders who received their Hawkeye Common Stock pursuant
         to the exercise of employee stock options or otherwise as
         compensation or who are not citizens or residents of the
         United States. 

                   We hereby consent to the filing of this opinion
         with the Securities and Exchange Commission as an exhibit to
         the Registration Statement, and to the reference to this
         opinion under the caption "SUMMARY -- Federal Income Tax Con-
         sequences in General", under the caption "CERTAIN FEDERAL IN-
         COME TAX CONSEQUENCES OF THE MERGER" and elsewhere in the
         Proxy Statement/Prospectus.  In giving such consent, we do
         not admit to being "experts", within the meaning of the term
         used in the Act or the rules and regulations of the Securities
         and Exchange Commission promulgated thereunder, with respect
         to any part of the Registration Statement,  including this opinion
         as an exhibit or otherwise.


                                  Very truly yours,


                                  /s/  Wachtell, Lipton, Rosen & Katz


                      [Letterhead of Baird, Holm, McEachen,
                          Pedersen, Hamann & Strasheim]



                                 October 23, 1995




         Hawkeye Bancorporation
         222 Equitable Building
         604 Locust Street
         Des Moines, Iowa 50309-3723

              Re:  Merger of Hawkeye Bancorporation with and into a
                   Wholly Owned Subsidiary of Mercantile Bancorporation
                   Inc.

         Ladies and Gentlemen:

                   This opinion is delivered to you in connection with
         that certain Agreement and Plan of Reorganization by and be-
         tween Hawkeye Bancorporation ("Hawkeye") and Mercantile Bancor-
         poration Inc. ("Mercantile"), dated as of August 4, 1995
         (which, together with all Exhibits attached thereto, is re-
         ferred to herein as the "Agreement and Plan of Reorganization"
         or the "Plan").  Our opinion is based upon a review of the
         Plan, the representations which have been submitted for our
         consideration as described herein, and our understanding of the
         facts as set forth herein.  Unless otherwise defined herein,
         capitalized terms used herein shall have the same meaning as
         set forth in the Plan.

                   As to all questions of fact material to this opinion,
         we have, with the permission of the parties, without any inves-
         tigation or independent confirmation, relied upon and assumed
         the accuracy of the representations and warranties of the par-
         ties contained in the Plan with respect to the relevant facts
         stated therein, the representations which have been submitted
         for our consideration described in this letter, and our under-
         standing of the facts set forth herein.  Our opinion is based
         upon existing tax law and authorities, which are subject to
         change.  We have assumed for purposes of this opinion that all
         steps necessary to effectuate the Plan will be effected pursu-
         ant to and in satisfaction of requirements under applicable
         state and federal law and will be consistent with the Plan.

                   This opinion is not binding on the Internal Revenue
         Service and no ruling has been or will be requested from the
         Internal Revenue Service as to the federal income tax conse-
         quences of the merger pursuant to the Plan of Hawkeye with and
         into a wholly owned subsidiary of Mercantile (said merger here-
         inafter referred to as the "Merger"; said wholly owned subsid-
         iary <PAGE>
         Hawkeye Bancorporation
         October 23, 1995
         Page 2


         hereinafter referred to as the "Merger Sub").  Consequently,
         there can be no assurance that the tax consequences set forth
         below will occur or continue as described herein; nor can any
         assurance be given that the issues discussed below will not be
         challenged by the Internal Revenue Service, or if so
         challenged, will be decided favorably to the parties of the
         Merger or their respective shareholders.  We express no opinion
         as to the laws of, or the effect or applicability of the laws
         of, any jurisdiction other than the laws of the United States
         of America, and then only with respect to the specific federal
         income tax consequences addressed herein.

                   Our understanding of the relevant facts is as fol-
         lows:

                   Mercantile is a bank holding company which holds One
         Hundred Percent (100%) of the outstanding shares of the Merger
         Sub.  The Boards of Directors of Mercantile and the Merger Sub
         believe that combining with Hawkeye, which has a long-
         established banking franchise in the State of Iowa, is a natu-
         ral and desirable extension of Mercantile's and Merger Sub's
         market area.  The Boards of Directors of Mercantile and Merger
         Sub also believe that the consolidation of resources by reason
         of the Merger will enable a wider and improved array of finan-
         cial services to be provided to customers and will provide Mer-
         cantile and Merger Sub with added flexibility in dealing with
         Iowa's changing competitive environment.

                   To achieve the desired business combination, Hawkeye
         will statutorily merge with and into Merger Sub, with Merger
         Sub as the surviving corporation.  The Merger will be governed
         by the laws of the State of Iowa.  If the Plan is approved by
         holders of the requisite number of shares of Hawkeye Common
         Stock and Merger Sub's Common Stock, the outstanding shares of
         Hawkeye Common Stock will be converted in the Merger into
         shares of Mercantile Common Stock as specified in the Plan.

                   The following representations have been submitted to
         us by Hawkeye, Mercantile and Merger Sub with respect to the
         Merger:

              (a)  The fair market value of Mercantile Common Stock and
                   other consideration received by the Hawkeye share-
                   holders will be approximately equal to the fair mar-
                   ket value of the Hawkeye Common Stock surrendered in
                   the exchange.

              (b)  Neither the management of Hawkeye, Mercantile, nor
                   Merger Sub knows of any plan or intention on the part
                   of the Hawkeye shareholders to sell, exchange, or
                   otherwise dispose of the Mercantile Common Stock to
                   be received by them in the Merger which would reduce
                   the Hawkeye shareholders' ownership of Mercantile
                   Common Stock to a number of shares of Mercantile
                   Common Stock having a value, as of the date of the
                   Merger, of less than Fifty Percent (50%) of the value
                   of all of the formerly outstanding Hawkeye Common
                   Stock as of the date of the   <PAGE>
         Hawkeye Bancorporation
         October 23, 1995
         Page 3


                   Merger.  For purposes of this representation, the
                   following shares of Hawkeye Common Stock will be
                   treated as outstanding Hawkeye Common Stock on the
                   date of the Merger:  (i) shares surrendered for
                   Mercantile Common Stock or other consideration (ii)
                   shares surrendered for fair value pursuant to the
                   exercise of shareholders' dissenters' rights and
                   (iii) shares surrendered for cash in lieu of
                   fractional shares.

                   In addition, neither the management of Hawkeye, Mer-
                   cantile, nor Merger Sub is aware of any transfer of
                   Hawkeye stock by any holder thereof prior to the
                   Merger which was made in contemplation thereof.

              (c)  Merger Sub will acquire at least Ninety Percent (90%)
                   of the fair market value of the net assets and at
                   least Seventy Percent (70%) of the fair market value
                   of the gross assets held by Hawkeye immediately prior
                   to the Merger.  For purposes of this representation,
                   the following amounts will be included as assets of
                   Hawkeye held immediately prior to the Merger:  (i)
                   amounts paid by Hawkeye for shares surrendered for
                   fair value pursuant to the exercise of shareholders'
                   dissenters' rights; (ii) amounts paid by Hawkeye to
                   shareholders who receive cash or other property;
                   (iii) assets of Hawkeye used to pay its reorganiza-
                   tion expenses; and (iv) all redemptions and distribu-
                   tions (except for regular, normal dividends) made by
                   Hawkeye immediately preceding the Merger.  The man-
                   agement of Hawkeye, Mercantile, and Merger Sub are
                   not aware of Hawkeye having redeemed any Hawkeye
                   stock, having made any distribution with respect to
                   any of the Hawkeye stock, or having disposed of any
                   of the Hawkeye assets in anticipation of or as a part
                   of a plan for the acquisition of Hawkeye by Merger
                   Sub.

              (d)  Prior to the Merger, Mercantile will be in control of
                   Merger Sub within the meaning of Section 368(c) of
                   the Internal Revenue Code of 1986, as amended (the
                   "Code").

              (e)  Following the Merger, Merger Sub will not issue ad-
                   ditional shares of Merger Sub stock that would result
                   in Mercantile losing control of Merger Sub within the
                   meaning of Section 368(c) of the Code.

              (f)  Mercantile has no plan or intention to redeem or oth-
                   erwise reacquire any of the Mercantile Common Stock
                   to be issued in the Merger.

              (g)  Mercantile has no plan or intention to liquidate
                   Merger Sub; to merge Merger Sub with and into another
                   corporation; to sell or otherwise dispose of the
                   stock  <PAGE>
         Hawkeye Bancorporation
         October 23, 1995
         Page 4


                   of Merger Sub; or to cause Merger Sub to sell or
                   otherwise dispose of any of the assets of Hawkeye
                   acquired in the Merger, except for transfers described 
                   in Section 368(a)(2)(C) of the Code or dispositions 
                   made in the ordinary course of business.

              (h)  The liabilities of Hawkeye assumed by Merger Sub and
                   the liabilities to which the transferred assets of
                   Hawkeye are subject were incurred by Hawkeye in the
                   ordinary course of its business.  No liabilities of
                   any person other than Hawkeye will be assumed by
                   Merger Sub in the Merger, and none of the shares of
                   Hawkeye to be surrendered in the exchange for Mercan-
                   tile Common Stock in the Merger will be subject to
                   any liabilities.

              (i)  The assumption by Merger Sub of the liabilities of
                   Hawkeye pursuant to the Merger is for a bona fide
                   business purpose and the principal purpose of such
                   assumption is not the avoidance of federal income tax
                   on the transfer of assets of Hawkeye to Merger Sub
                   pursuant to the Merger.

              (j)  Subsequent to the Merger, Merger Sub will continue
                   the historic business of Hawkeye or use a significant
                   portion of the Hawkeye historic business assets in a
                   business.

              (k)  Hawkeye, Mercantile, and Merger Sub will pay their
                   respective expenses, if any, incurred in connection
                   with the Merger.

              (l)  There is no intercorporate indebtedness existing be-
                   tween Mercantile and Hawkeye or between Merger Sub
                   and Hawkeye that was issued, acquired, or will be
                   settled at a discount.

              (m)  No two parties to the Merger are investment companies
                   as defined in Section 368(a)(2)(F)(iii) and (iv) of
                   the Code.

              (n)  Neither Hawkeye, Mercantile, nor Merger Sub, are un-
                   der the jurisdiction of a court in a Title 11 or
                   similar case within the meaning of Section
                   368(a)(3)(A) of the Code.

              (o)  The fair market value of the Hawkeye assets trans-
                   ferred to Merger Sub will equal or exceed the sum of
                   the Hawkeye liabilities assumed by Merger Sub, plus
                   the amount of liabilities, if any, to which the Hawk-
                   eye assets are subject.

              (p)  The total adjusted basis of the Hawkeye assets trans-
                   ferred to Merger Sub will equal or exceed the sum of
                   the Hawkeye liabilities assumed by Merger Sub, plus <PAGE>
         Hawkeye Bancorporation
         October 23, 1995
         Page 5


                   the amount of liabilities, if any, to which the
                   transferred assets of Hawkeye are subject.

              (q)  No stock of Merger Sub will be issued in the Merger.

              (r)  None of the compensation to be received by any Hawk-
                   eye shareholder/employee will be separate consider-
                   ation for, or allocable to, any of their shares of
                   Hawkeye Common Stock; none of the shares of Mercan-
                   tile Common Stock received by any Hawkeye share-
                   holder/employee will be separate consideration for,
                   or allocable to, any employment contract; and the
                   compensation paid to any Hawkeye shareholder/employee
                   will be for services actually rendered and will be
                   commensurate with the amounts paid to third parties
                   bargaining at arms-length for similar services.

              (s)  The Merger is being transacted for a bona fide corpo-
                   rate business purpose.

              (t)  The Agreement and Plan of Reorganization has been
                   duly adopted by the Boards of Directors of Hawkeye,
                   Mercantile, and Merger Sub; the Agreement and Plan of
                   Reorganization is in effect and, subject to satisfac-
                   tion of all conditions precedent stated therein, in-
                   cluding obtaining the requisite shareholder and regu-
                   latory approvals, the statutory Merger will be com-
                   pleted in accordance with the laws of the State of 
                   Iowa.

              (u)  The Merger will be completed in accordance with the
                   terms and conditions contained in the Agreement and
                   Plan of Reorganization and all representations and
                   warranties of Hawkeye, Mercantile, and Merger Sub
                   contained in the Agreement and Plan of Reorganization
                   are true and correct.

              (v)  The payment of cash in lieu of fractional shares of
                   Mercantile Common Stock is solely for the purpose of
                   avoiding the expense and inconvenience to Mercantile
                   of issuing fractional shares and does not represent
                   separately bargained-for consideration.  The total
                   cash consideration that will be paid in the Merger to
                   the Hawkeye shareholders instead of issuing frac-
                   tional shares of Mercantile stock will not exceed One
                   Percent (1%) of the total consideration that will be
                   issued in the Merger to the Hawkeye shareholders in
                   exchange for their shares of Hawkeye stock.  The
                   fractional share interests of each Hawkeye share-
                   holder will be aggregated, and it is intended that no 
                   Hawkeye shareholder will receive cash in an amount 
                   equal to or greater than the value of One (1) full 
                   share of Mercantile Common Stock.

                   Based upon the foregoing and subject to the assump-
         tions, qualifications and limitations hereinbefore and herein-
         after set forth, we are of the opinion that:<PAGE>
         Hawkeye Bancorporation
         October 23, 1995
         Page 6


            (i)    The Merger will constitute a "reorganization" for
                   federal income tax purposes under Section
                   368(a)(1)(A) and (a)(2)(D) of the Code.

            (ii)   No gain or loss will be recognized by Hawkeye as a
                   result of the Merger.

            (iii)  Hawkeye shareholders will recognize no gain or loss
                   as a result of the exchange of their Hawkeye Common
                   Stock solely for shares of Mercantile Common Stock
                   pursuant to the Merger, except with respect to cash
                   received in lieu of fractional shares, if any, as
                   discussed below.

            (iv)   A holder of shares of Hawkeye Common Stock who re-
                   ceives cash in the Merger in lieu of a fractional
                   share interest of Mercantile Common Stock will be
                   treated as if the fractional shares were received in
                   the exchange and then redeemed by Mercantile.  A
                   holder of shares of Hawkeye Common Stock will be
                   treated as if the shareholder sold his or her
                   fractional share of Mercantile Common Stock for the
                   amount of cash received and will therefore recognize
                   gain (or loss) to the extent that the amount of cash
                   received exceeds (or is less than) the tax basis of
                   the fractional share.  Such gain or loss will be
                   capital gain or loss if the shares of Hawkeye Common
                   Stock were held as capital assets and will be
                   long-term capital gain or loss if the holding period
                   of the shares of Hawkeye Common Stock so exchanged
                   was more than one year.

            (v)    The aggregate adjusted tax basis of the Mercantile
                   Common Stock received by a shareholder of Hawkeye in
                   the Merger, including for the purposes of (iv) above
                   the tax basis of any fractional share interest, will
                   be equal to the aggregate adjusted tax basis of the
                   respective shares of Hawkeye Common Stock sur-
                   rendered.

            (vi)   The holding period of the shares of Mercantile Common
                   Stock received by a shareholder of Hawkeye in the
                   Merger, including for purposes of (iv) above the
                   holding period of any fractional share interest, will
                   include the holding period of the respective shares
                   of Hawkeye Common Stock exchanged therefor, provided
                   the shares of Hawkeye Common Stock were held as capi-
                   tal assets.

            (vii)  A Hawkeye shareholder who receives only cash as a
                   result of the exercise of dissenters' rights, will
                   realize gain or loss for federal income tax purposes
                   (determined separately as to each block of Hawkeye
                   Common Stock exchanged) in an amount equal to the
                   difference between (x) the <PAGE>
         Hawkeye Bancorporation
         October 23, 1995
         Page 7


                   amount of cash received by such shareholder, and (y)
                   such shareholder's tax basis for the shares of
                   Hawkeye Common Stock surrendered in exchange
                   therefor, provided that the cash payment does not
                   have the effect of the distribution of a dividend.
                   Any such gain or loss will be recognized for federal
                   income tax purposes and will be treated as capital
                   gain or loss, provided the shares of Hawkeye Common
                   Stock were held as capital assets.  However, if the
                   cash payment does have the effect of the distribution
                   of a dividend, the amount of taxable income
                   recognized generally will equal the amount of cash
                   received; such income generally will be taxable as a
                   dividend; and no loss (or other recovery of such
                   shareholder's tax basis for the shares of Hawkeye
                   Common Stock surrendered in exchange) generally will
                   be recognized by such shareholder.  The determination
                   of whether a cash payment has the effect of the dis-
                   tribution of a dividend will be made pursuant to the
                   provisions and limitations of Section 302 of the
                   Code, taking into account the constructive stock own-
                   ership rules of Section 318 of the Code.

                   This opinion is limited in its use solely to Hawkeye
         and its shareholders in connection with the Plan, and is not to
         be used, circulated, quoted or otherwise relied upon for any
         purpose.  No other person or entity may rely on or claim reli-
         ance upon this opinion, and it is not to be quoted in whole or
         in part or otherwise referred to by any governmental agency or
         other person or entity without prior written consent of this
         firm.  Notwithstanding the foregoing provisions of this para-
         graph to the contrary, we hereby consent to the use of this
         opinion as Exhibit 8.2 to Mercantile's Registration Statement
         on Form S-4 filed with the Securities and Exchange Commission
         under the Securities Act of 1933, as amended, with respect to
         the shares of Mercantile Common Stock issuable in the Merger
         and to the references to us in such Registration Statement un-
         der the captions "SUMMARY INFORMATION--Federal Income Taxes in
         General" and "CERTAIN FEDERAL INCOME TAX CONSEQUENCES OF THE
         MERGER."

                                  Yours very truly,

                                  /s/  BAIRD, HOLM, McEACHEN,
                                       PEDERSEN, HAMANN & STRASHEIM















                          Independent Auditors' Consent

         The Board of Directors and Stockholders
         Mercantile Bancorporation Inc.:

         We consent to the use of our reports incorporated herein by
         reference and to the reference to our firm under the heading
         "Experts" in the prospectus.


                                            /s/ KPMG Peat Marwick LLP


         St. Louis, Missouri
         October 20, 1995                   








         INDEPENDENT AUDITORS' CONSENT


         We consent to the incorporation by reference in this
         Registration Statement of Mercantile Bancorporation Inc. on
         Form S-4 of our report dated January 24, 1995, appearing in the
         Annual Report on Form 10-K of Hawkeye Bancorporation for the
         year ended December 31, 1994 and to the reference to us under
         the headings "Relationship With Independent Accountants" and
         "Experts" in the Prospectus, which is part of this Registration 
         Statement.

         /s/ Deloitte & Touche LLP


         Des Moines, Iowa
         October 19, 1995








          CONSENT OF DONALDSON, LUFKIN & JENRETTE SECURITIES CORPORATION


                   We hereby consent to the use of our name and to the
         description of our form of opinion letter under the captions
         "Summary Information" and "Terms of the Proposed
         Merger--Opinion of Hawkeye's Financial Advisor" in, and the
         inclusion of such form of opinion letter as Annex B to, the
         Proxy Statement/Prospectus which is part of the Registration
         Statement on Form S-4 of Mercantile Bancorporation Inc. to
         which this consent is an exhibit.  By giving such consent, we
         do not thereby admit that we are experts with respect to any
         part of such Registration Statement within the meaning of the
         term "expert" as used in, or that may come within the category
         of persons whose consent is required under, Section 7 of the
         Securities Act of 1933, as amended, or the rules and
         regulations of the Securities and Exchange Commission
         promulgated thereunder.

                                       DONALDSON, LUFKIN & JENRETTE
                                         SECURITIES CORPORATION


                                       By:  /s/ Thomas J. MacDermott
                                            Thomas J. MacDermott
                                            Senior Vice President

         New York, New York
         October 20, 1995






                    [Form of Support Agreement]





                                       August 4, 1995




         Mercantile Bancorporation Inc.
         Mercantile Tower
         St. Louis, Missouri  63166

         Dear Sirs:  

                   The undersigned understands that Mercantile Ban-
         corporation Inc. ("Mercantile"), and Hawkeye Bancorporation
         ("Seller") are entering into an Agreement and Plan of Reor-
         ganization (the "Agreement") providing for, among other
         things, a merger between a wholly owned subsidiary of Mer-
         cantile, and Seller (the "Merger"), in which all of the out-
         standing shares of capital stock of Seller will be exchanged
         for shares of common stock, par value $5.00 per share, of
         Mercantile.

                   The undersigned is a stockholder of Seller (the
         "Stockholder") and is entering into this letter agreement to
         induce you to enter into the Agreement and to consummate the
         transactions contemplated thereby.

                   The undersigned confirms its agreement with you as
         follows:

                   1.   The undersigned represents, warrants and
         agrees that Schedule I annexed hereto sets forth shares of
         the capital stock of Seller of which the undersigned is the
         record or beneficial owner (the "Shares") and that the un-
         dersigned is on the date hereof the lawful owner of the num-
         ber of shares set forth in Schedule I, free and clear of all
         liens, charges, encumbrances, voting agreements and commit-
         ments of every kind, except as disclosed in Schedule I.  Ex-
         cept as set forth in the Schedule, the undersigned does not
         own or hold any rights to acquire any additional shares of
         the capital stock of Seller (by exercise of stock options or
         otherwise) or any interest therein or any voting rights with
         respect to any additional shares, other than as previously
         disclosed to you.

                   2.   The undersigned agrees that the undersigned
         will not, and will not permit any company, trust or other en-
         tity controlled by the undersigned to, contract to sell, sell
         or otherwise transfer or dispose of any of the Shares of any
         interest therein or securities convertible thereunto or any
         voting rights with respect thereto, other than (i) pursuant
         to the Merger, or (ii) with your prior written consent.<PAGE>








         Mercantile Bancorporation Inc.
         August 4, 1995
         Page 2


                   3.   The undersigned agrees that all of the Shares
         beneficially owned by the undersigned, or over which the un-
         dersigned has voting power or control, directly or indi-
         rectly, at the record date for any meeting of stockholders of
         Seller called to consider and vote to approve the Agreement
         and/or the transactions contemplated thereby will be voted by
         the undersigned in favor thereof.

                   4.   The undersigned agrees to, and will cause any
         company, trust or other entity controlled by the undersigned
         to, cooperate fully with you in connection with the Agreement
         and the transactions contemplated thereby.  The undersigned
         agrees that the undersigned will not, and will not permit any
         such company, trust or other entity to directly, or indi-
         rectly (including through its officers, directors, employees
         or other representatives) initiate, solicit or encourage any
         discussions, inquiries or proposals with any third party re-
         lating to the disposition of any significant portion of the
         business or assets of Seller or the acquisition of any capi-
         tal stock or other securities of Seller or the business com-
         bination, merger or consolidation of Seller with any person
         or any similar transaction (each such transaction being re-
         ferred to herein as an "Acquisition Transaction"), or provide
         any such person with information or assistance or negotiate
         with any such person with respect to an Acquisition Transac-
         tion or agree to or otherwise assist in the effectuation of
         any Acquisition Transaction.

                   The undersigned has all necessary power and author-
         ity to enter into this letter agreement.  This agreement is
         the legal, valid and binding agreement of the undersigned,
         and is enforceable against the undersigned in accordance with
         its terms.  

                   This letter agreement may be terminated at the op-
         tion of any party at any time after the earlier of (i) ter-
         mination of the Agreement and (ii) the day following the
         Closing Date (as defined in the Agreement).  Please confirm
         that the foregoing correctly states the understanding between
         us by signing and returning to us a counterpart hereof.

                   Nothing herein shall be construed to require the
         undersigned or any company, trust or other entity controlled
         by the undersigned to<PAGE>








         Mercantile Bancorporation Inc.
         August 4, 1995
         Page 3


         take any action or fail to take any action in violation of
         applicable law, rule or regulation.

                                       Very truly yours,



                                       By:  /s/                   
                                            Stockholder
         Confirmed on the date
         first above written.

         MERCANTILE BANCORPORATION INC.



         By:    /s/                 



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