EXHIBIT (a)(1)




                           Offer to Purchase For Cash
                     All Outstanding Shares of Common Stock

                                       of

                              COHOES BANCORP, INC.

                                       at

                              $16.50 Net per Share

                                       by

                            AMBANC HOLDING CO., INC.

              The Offer and withdrawal rights will expire at 12:00
               midnight, New York time, on Wednesday, September 6,
                       2000, unless the Offer is extended.
- --------------------------------------------------------------------------------

         Ambanc is offering to purchase all of the outstanding  shares of common
stock of Cohoes  Bancorp,  Inc.  with the  intent to  acquire  control  of,  and
ultimately the entire equity interest in, Cohoes.  Upon the  consummation of the
Offer,  Cohoes would be merged into Ambanc and each share of Cohoes common stock
that was not  tendered  in the  Offer  would be  purchased  for  $16.50 in cash,
subject to appraisal rights available under Delaware law.

         Ambanc  believes its Offer  provides  you with  greater  value for your
shares of Cohoes  common stock than the proposed  sale of Cohoes to Hudson River
Bancorp,  Inc.  announced on April 25, 2000. Ambanc is offering $16.50 per share
in cash.  That price  represents a 19% premium over the value you would  receive
for your shares in the proposed sale to Hudson River, based on the closing price
of Hudson River on August 4, 2000 and based on the terms of that  proposed  sale
in which you would  receive 1.185 shares of Hudson River stock for each share of
Cohoes stock you own.

         Ambanc's Offer also provides you with a better value than what has been
offered to you by TrustCo Bank Corp of NY,  which is offering  shares of its own
common stock in exchange for your shares of Cohoes common  stock.  TrustCo would
give you shares of TrustCo  stock worth  $16.00 for each share of Cohoes  stock.
You may have already received  TrustCo's offer, and you should read it carefully
and decide what  represents  a more  attractive  offer for your shares of Cohoes
stock -- $16.00 in TrustCo stock -- or $16.50 in cash from Ambanc.

         We are not asking you for a proxy and you are  requested not to send us
a proxy.  Ambanc is separately  soliciting  proxies from Cohoes  shareholders to
vote against the proposed sale of Cohoes to Hudson River.  Such  solicitation of
proxies is being made  pursuant to proxy  solicitation  materials  being  mailed
separately.
- --------------------------------------------------------------------------------

          Ambanc's Offer is subject to conditions, including the Cohoes
     shareholders not approving the proposed sale of Cohoes to Hudson River
       and the valid termination of the stock option granted to Hudson by
       Cohoes. The conditions are listed under "Certain Conditions of the
                               Offer." See page 20

                  Questions and requests for assistance may be
                      directed to the Information Agent for
                                 Ambanc's Offer:

                              D.F. King & Co, Inc.
                                 77 Water Street
                            New York, New York 10005
                 Banks and Brokers Call Collect: (212) 269-5550
                    All Others Call Toll Free: 1-800-487-4870

              The date of this Offer to Purchase is August 9, 2000






                                TABLE OF CONTENTS

                                                                                                             
SUMMARY TERM SHEET................................................................................................3
INTRODUCTION......................................................................................................7
THE OFFER.........................................................................................................9
1. Terms of the Offer; Expiration Date............................................................................9
2. Acceptance for Payment and Payment for Shares.................................................................10
3. Withdrawal Rights.............................................................................................11
4. Procedure for Tendering Shares................................................................................12
5. Certain Federal Income Tax Consequences.......................................................................15
6. Price Range of Shares.........................................................................................16
7. Effect of the Offer on the Market for the Shares and Exchange Act Registration................................17
8. Certain Information Concerning Cohoes.........................................................................17
9. Certain Information Concerning Ambanc.........................................................................18
10. Background of the Offer; Contacts with Cohoes................................................................19
11. Purpose of the Offer; Plans for Cohoes.......................................................................20
12. Certain Conditions of the Offer..............................................................................20
13. Appraisal Rights.............................................................................................26
14. Source and Amount of Funds...................................................................................27
15. Dividends and Distributions..................................................................................28
16. Treatment of Cohoes Stock Options and Employee Stock Ownership Plan..........................................28
17. Certain Legal and Regulatory Matters; Approvals..............................................................28
18. Fees and Expenses............................................................................................30
19. Miscellaneous................................................................................................30
SCHEDULE I   -  DIRECTORS AND OFFICERS OF AMBANC ................................................................32
SCHEDULE II  -  SCHEDULE OF SHARES OWNED AND TRANSACTIONS IN
                SHARES DURING THE PAST 60 DAYS BY AMBANC.........................................................36
SCHEDULE III -  SECTION 203 OF THE DELAWARE GENERAL CORPORATION
                LAW..............................................................................................37


                           FORWARD LOOKING STATEMENTS

         This document may contain  forward-looking  statements  concerning  the
financial  condition and business of Ambanc  following the  consummation  of its
proposed acquisition of Cohoes, the anticipated  financial and other benefits of
such proposed  acquisition  and the plans and objectives of Ambanc's  management
following  such  proposed  acquisition.  Generally,  the  words  "will,"  "may,"
"should," "continue," "believes," "expects," "intends," "anticipates" or similar
expressions identify forward-looking statements. We caution that such statements
may be subject to a number of risks and  uncertainties  and actual results could
differ materially and, therefore, readers should not place undue reliance on any
forward-looking  statements.  Factors that could cause actual  results to differ
materially from those contemplated by the  forward-looking  statements  include,
among others,  the following  factors:(i)  competitive  pressure among financial
services  companies  may increase  significantly;  (ii)  adverse  changes in the
interest rate  environment may reduce interest margins or adversely affect asset
values of the company; (iii) general economic conditions,  whether nationally or
in the market areas in which  Ambanc and Cohoes  conduct  business,  may be less
favorable than expected;  (iv)  legislation or regulatory  changes may adversely
affect the  businesses  in which Ambanc and Cohoes are  engaged;  or (v) adverse
changes may occur in the  securities  markets.  Ambanc does not  undertake,  and
specifically  disclaims,  any obligation to publicly  release the results of any
revisions  that may be made to any  forward-looking  statements  to reflect  the
occurrence of anticipated or  unanticipated  events or  circumstances  after the
date of such statements.

                                       -2-

                               SUMMARY TERM SHEET

         This Summary Term Sheet will explain to you the important  terms of our
offer.  The information  here serves only as an introduction  and we urge you to
carefully  read the  remainder of this document and the  accompanying  Letter of
Transmittal to fully understand our offer.

PRINCIPAL TERMS - See Section 1 "Terms of the Offer; Expiration Date"

o    We are  offering to buy all of the  outstanding  shares of common  stock of
     Cohoes Bancorp, Inc.

o    The price we are  offering to pay is $16.50 per share in cash,  net to you.
     That means that you will not have to pay brokerage fees or commissions.

o    Our offer will expire at 12:00 midnight,  New York City time, on Wednesday,
     September 6, 2000, unless we extend the offer.

o    If we decide to extend our offer,  we will issue a press release giving the
     new  expiration  date no later than 9:00 a.m.,  New York City time,  on the
     first business day after the previously scheduled expiration of the offer.

AMBANC'S CAPACITY TO PURCHASE COHOES

o    We currently have over $200 million in securities held  available-for-sale,
     which is more than  adequate  to pay for the  acquisition  of  Cohoes.  See
     Section 14 "Source and Amount of Funds."

CONDITIONS OF AMBANC'S OFFER

         We are not  required  to  complete  our offer and  purchase  any Cohoes
shares unless:

o    the Cohoes  shareholders  do not  approve  the  proposed  sale of Cohoes to
     Hudson River Bancorp, Inc. ("Hudson River"), which is scheduled to be voted
     on at a special meeting of shareholders on August 17, 2000;

o    the Boards of  Directors of Cohoes and Hudson  River  terminate  the merger
     agreement between Cohoes and Hudson River;

o    the stock option  agreement  between  Cohoes and Hudson River is terminated
     and Hudson River  surrenders  to Cohoes the option  granted to Hudson River
     under that agreement;

o    enough  shares of Cohoes  stock are tendered to us to give us a majority of
     the  outstanding  Cohoes shares (on a fully diluted  basis),  including the
     shares of Cohoes stock that we already own;


                                       -3-





o    Cohoes executes a definitive merger agreement with us that will provide for
     the merger of Cohoes with and into Ambanc pursuant to which each untendered
     Share would be  purchased  at the same price we paid in our offer -- $16.50
     in cash, subject to appraisal rights available under Delaware law;

o    We receive all required regulatory approvals to acquire Cohoes; and

o    We are satisfied that the anti-takeover provisions in Cohoes Certificate of
     Incorporation  and Bylaws and the provisions of Section 203 of the Delaware
     General Corporation Law will not prevent us from consummating the merger to
     acquire  any  untendered  shares at the same  price we paid in our offer --
     $16.50 in cash, subject to appraisal rights available under Delaware law.

         These  conditions  and other  conditions  to our offer are described in
Section  12  "Certain  Conditions  of the  Offer,"  starting  on page 20 of this
document.

YOUR BOARD OF DIRECTORS  MAY DELAY  SATISFACTION  OF CERTAIN  CONDITIONS  TO OUR
OFFER

o    Several of the  conditions  to our offer will require  action by the Cohoes
     Board of Directors.  See Section 12 "Conditions of the Offer." There can be
     no  assurance  that  the  Cohoes  Board  will  take  action  to  cause  the
     satisfaction of these conditions.

EXPECTED TIME OF COMPLETION OF OUR OFFER

o    One of the  conditions  to our  offer is that the  Boards of  Directors  of
     Cohoes and Hudson River terminate the merger  agreement  between Cohoes and
     Hudson  River.  The timing of  completion  of our offer will depend on when
     that  termination  occurs.  If the Cohoes  shareholders  do not approve the
     proposed  sale to Hudson  River,  the  Cohoes  Board will have the right to
     terminate the merger  agreement.  If Cohoes terminates the merger agreement
     promptly after the Cohoes shareholders fail to approve the proposed sale to
     Hudson River, our offer could close in the first quarter of 2001.

o    If  the  Hudson  River-Cohoes  merger  agreement  is not  terminated  until
     February  28, 2001,  which is the  earliest  date that Cohoes or Hudson can
     otherwise  terminate  the  agreement,  our offer  could close in the second
     quarter of 2001.  These schedules assume that the Cohoes Board of Directors
     promptly  cooperates  with us following  termination  of the  Hudson-Cohoes
     merger agreement.  However, the Cohoes Board may try to delay our offer. By
     tendering your shares,  you will be sending a message to Cohoes  management
     and the Cohoes board that you want Cohoes to  participate  in a combination
     with us.

PURPOSE OF OUR OFFER - See Section 11 "Purpose of the Offer; Plans for Cohoes"

o    Our purpose in making this offer is to acquire  control of, and  ultimately
     the entire equity  interest in, Cohoes.  We intend to achieve this by first
     offering to purchase all  outstanding  Shares and then merging  Cohoes into
     Ambanc by purchasing all untendered Shares at the

                                       -4-





     same price paid in the offer -- $16.50 in cash, subject to appraisal rights
     available under Delaware law.

o    We desire to acquire  Cohoes  because we believe  that the  acquisition  of
     Cohoes  will  produce  substantial  benefits  for  us,  including  earnings
     accretion  of  approximately  78%  resulting  from fully  implemented  cost
     reductions  and  the  leverage  of  excess  capital.   We  expect  that  an
     acquisition of Cohoes would enable us grow our balance sheet,  leverage our
     capital,  increase our market share,  penetrate  attractive markets and add
     growth branches.

PROCEDURES FOR TENDERING - See Section 4 "Procedures for Tendering Shares"

         If you wish to accept our offer, this is what you must do:

o    If you are a record holder (i.e.,  a stock  certificate  has been issued to
     you),  you must complete and sign the enclosed  Letter of  Transmittal  and
     send it with your stock certificate to D.F. King & Co., Inc., who is acting
     as the  "Depositary"  for the offer or follow the  procedures  described in
     this document for book-entry transfer.  These materials must reach the D.F.
     King before the offer expires.  Detailed  instructions are contained in the
     Letter of Transmittal.

o    If you are a record holder but your stock  certificate  is not available or
     you cannot deliver it to the depositary  before the offer expires,  you may
     be able  to  tender  your  Cohoes  shares  using  the  enclosed  notice  of
     guaranteed  delivery.  Please call our information  agent, D.F. King & Co.,
     Inc., toll free at 800-487-4870  for assistance.  See Section 4 "Procedures
     for Tendering Shares" for further details.

o    If you hold your Cohoes  shares in "street  name" through a broker or bank,
     you should  contact  your  broker or bank and give  instructions  that your
     Cohoes shares be tendered before the expiration date of the offer.

WITHDRAWAL RIGHTS

o    If, after tendering your Cohoes shares,  you decide that you do NOT want to
     accept  our  offer,  you  can  withdraw  your  shares  by  instructing  the
     Depositary. If you tendered by giving instructions to a broker or bank, you
     must  instruct  the broker or bank to arrange  for the  withdrawal  of your
     shares. See Section 3 "Withdrawal Rights" for further details.

o    You may  withdraw  your  shares at any time  before the offer  expires.  In
     addition,  you may withdraw your shares at any time after October 10, 2000,
     even though this would be after the Expiration Date (unless  extended),  if
     we have not yet accepted and paid for your shares.

DIVIDENDS AND VOTING RIGHTS WITH RESPECT TO TENDERED SHARES

o    Until we accept your shares of Cohoes stock for purchase at the  completion
     of our offer,  you will be entitled to receive any  dividends  paid on your
     tendered  shares of Cohoes stock and you will continue to have the right to
     vote your tendered shares. Once we complete our offer

                                       -5-





     and purchases  all shares of Cohoes stock  tendered by you in the offer and
     not  withdrawn,  we will own those  shares and will have all  dividend  and
     voting rights with respect to those shares.

FEDERAL INCOME TAX CONSEQUENCES

o    If you tender  your  shares and we  complete  the offer and  purchases  the
     shares,  that  will be a  taxable  event  for you for  federal  income  tax
     purposes,  and may also be a taxable  transaction  under applicable  state,
     local and  foreign  tax laws.  See  Section 5 "Certain  Federal  Income Tax
     Consequences" for further details.

IMPORTANT INFORMATION

o    Before  deciding  whether to tender  your  shares,  you  should  obtain and
     carefully review the documents mailed to you by Cohoes and Hudson River and
     by TrustCo Bank Corp NY because those documents  provide  information about
     the proposed  sale of Cohoes to Hudson River and TrustCo's  stock  exchange
     offer for your Cohoes shares.

STOCK PRICE

o    On July 26, 2000, the last day on which Cohoes common stock (symbol:  COHB)
     was traded  prior to our  announcement  of our  intention  to commence  the
     offer, the reported closing price for Cohoes on the Nasdaq was $13.938.

o    On August 4, 2000, the reported  closing price for Cohoes on the Nasdaq was
     $14.375.  Based on the closing price of Hudson River (symbol:  HRBT) common
     stock on August 4, 2000 of  $11.6875  and the 1.185 to 1 exchange  ratio in
     the proposed  sale to Hudson  River,  you would receive an implied value of
     $13.85 per Cohoes share if the  proposed  sale to Hudson River is approved.
     You can obtain current stock price  quotations for Cohoes and Hudson from a
     newspaper, on the Internet or by calling your broker.

QUESTIONS

o    If you have questions about our offer, you can call the Information Agent:

                              D.F. King & Co., Inc.
                         Call Toll Free: 1-800-487-4870


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



                                       -6-





         This brief  introduction  does not contain all of the information  that
should be important to you. You should  carefully  read this entire  document to
fully understand the offer.

                                  INTRODUCTION

         On April 25, 2000,  Cohoes  Bancorp,  Inc.  ("Cohoes") and Hudson River
Bancorp,  Inc.  ("Hudson  River")  announced that they had entered into a merger
agreement  in which  Hudson River would be the  surviving  corporation  and each
share of common stock of Cohoes  would be  exchanged  for 1.185 shares of Hudson
River common stock.

         Ambanc Holding Co., Inc.  ("Ambanc") would also like to acquire Cohoes,
and Ambanc  believes  it can offer the Cohoes  shareholders  a better  value for
their shares than they would get in the proposed sale to Hudson River. Following
announcement of the proposed sale to Hudson River, Ambanc reviewed its strategic
options for acquiring Cohoes.

         On June 15,  2000  Ambanc  made an  acquisition  proposal to the Cohoes
Board of  Directors in which Ambanc  would  purchase the  outstanding  shares of
Cohoes  for  $14.75  per  share in cash.  The  Cohoes  Board  rejected  Ambanc's
proposal.  On June 23, 2000,  Ambanc  increased its proposed price to $15.25 per
share in cash. This proposal was also rejected by Cohoes.

         Having  failed to  persuade  the Cohoes  Board that it could  offer the
Cohoes shareholders a better deal than Hudson River was giving them, on July 27,
2000, Ambanc announced its intention to commence a tender offer to purchase each
outstanding share of Cohoes for $16.50 per share in cash.

         Ambanc  hereby  offers to  purchase  all of the  outstanding  shares of
common  stock,  par value  $.01 per share of Cohoes  (referred  to herein as the
"Shares")  at $16.50 per  Share,  net to the  seller in cash,  without  interest
thereon, upon the terms and subject to the conditions set forth in this Offer to
Purchase and in the related Letter of Transmittal (which together constitute the
"Offer"). The purpose of Ambanc's Offer is to allow Ambanc to acquire control of
Cohoes,  and ultimately to merge Cohoes into Ambanc.  Upon the  consummation  of
Ambanc's  Offer,  Cohoes  would be merged  into  Ambanc and each share of Cohoes
common  stock that was not  tendered in Ambanc's  Offer would be  purchased  for
$16.50 in cash, subject to appraisal rights under Delaware law.

         Tendering  shareholders  will not be obligated to pay brokerage fees or
commissions  or,  except  as  set  forth  in  Instruction  6 of  the  Letter  of
Transmittal,  stock transfer taxes on the purchase of Shares by Ambanc  pursuant
to its  Offer.  Shareholders,  however,  may  incur  fees  associated  with  the
tendering of shares in custodial or other beneficiary accounts.  Ambanc will pay
all charges and  expenses of D.F.  King & Co.,  Inc. in its capacity as both the
"Depositary" and the "Information  Agent" incurred in connection with the Offer.
There are no dealer managers in connection with the Offer.

         Based on the closing price of Hudson River's common stock on the Nasdaq
on July 26,  2000 (the last  trading  day before the  announcement  of  Ambanc's
Offer),  the$16.50 per Share being offered by Ambanc  represents more than a 17%
premium over the implied  value of the  proposed  sale to Hudson River of $14.07
(based on the 1.185 to 1 exchange ratio in that transaction and the $11.875

                                       -7-





closing price of Hudson  common stock on July 26,  2000).  Because the number of
shares of Hudson  River stock that holders  would  receive in the sale to Hudson
River is fixed,  the value  holders of Shares would  receive in a sale to Hudson
River will  change  based on changes  in the market  prices of the Hudson  River
stock,  however, the value of Ambanc's Offer will remain fixed at $16.50 in cash
per Share.

         The total value of Ambanc's Offer is  approximately  $131,000,000.  The
total value offered to holders of Shares under the proposed sale to Hudson River
was approximately $91,000,000 at the time that transaction was announced,  based
on the closing  price of Hudson  River on April 25,  2000,  the last trading day
before the merger was  announced.  Based on the closing price of Hudson River on
August 4, 2000, the sale to Hudson River offers  approximately  $21,000,000 less
value to the Cohoes shareholders than Ambanc's Offer as of August 4, 2000.

         The $16.50 per Share  consideration  offered pursuant to Ambanc's Offer
also represents a premium over what has been offered to the Cohoes  shareholders
by TrustCo Bank Corp of NY ("TrustCo"),  which is offering to exchange shares of
its own common  stock  worth  $16.00 for each Share.  Again,  the total value of
Ambanc's  Offer is  approximately  $131,000,000.  THE TRUSTCO OFFER IS VALUED AT
APPROXIMATELY $ 127,000,000  --- $4,000,000  LESS TO COHOES  SHAREHOLDERS AT THE
TIME THE TRUSTCO OFFER WAS ANNOUNCED.

         The purpose of Ambanc's Offer is to acquire  control of, and ultimately
the entire  equity  interest in,  Cohoes and to  consolidate  the  operations of
Cohoes and Ambanc to achieve operational  efficiencies and cost savings.  Ambanc
would not make the Offer if it could not  effect a merger of Ambanc  and  Cohoes
and,  consequently,  the  Offer is  conditioned  upon  the  removal  of  various
impediments  to  consummation  of such a merger.  As soon as  practicable  after
consummation of the Offer,  Ambanc intends to cause to occur:  (i) the merger of
Cohoes with and into  Ambanc or a  subsidiary  of Ambanc  pursuant to which each
outstanding  Share (except for Shares held in Cohoes's  treasury and Shares that
Ambanc owns for its own account) would be purchased for $16.50 in cash,  subject
to appraisal rights available under Delaware law (the  "Ambanc-Cohoes  Merger"),
and  (ii)  the  integration  of the  operations  of  Cohoes  Savings  Bank,  the
wholly-owned  subsidiary of Cohoes,  with those of Mohawk  Community  Bank,  the
wholly-owned subsidiary of Ambanc.

         The Offer does not entitle Cohoes shareholders to appraisal rights with
respect to the Shares.  Cohoes  shareholders who have not validly tendered their
Shares in the Offer and do not vote in favor of the  Ambanc-Cohoes  Merger  will
have the right  under  Delaware  law to dissent  and demand  appraisal  of their
Cohoes shares in accordance with Section 262 of the Delaware General Corporation
Law (the "DGCL"). See Section 13 "Appraisal Rights" for further details.

         Ambanc reserves the right,  following  completion or termination of the
Offer,  to acquire Shares through open market  purchases,  privately  negotiated
transactions,  a merger or other business  combination or any combination of the
foregoing.

         CONSUMMATION OF THE OFFER IS SUBJECT TO A NUMBER OF CONDITIONS THAT ARE
DESCRIBED IN SECTION 12. AMBANC EXPRESSLY RESERVES THE RIGHT TO WAIVE ANY ONE OR
MORE OF THE CONDITIONS TO THE OFFER.

                                       -8-






         THIS OFFER TO PURCHASE AND THE LETTER OF TRANSMITTAL  CONTAIN IMPORTANT
INFORMATION  WHICH  SHOULD BE READ  CAREFULLY  BEFORE ANY  DECISION IS MADE WITH
RESPECT TO THE OFFER.


                                    THE OFFER

         1. TERMS OF THE OFFER;  EXPIRATION  DATE. Upon the terms and subject to
the conditions of the Offer (including, if the Offer is extended or amended, the
terms and  conditions  of any  extension or  amendment),  Ambanc will accept for
payment  and pay for all of the  outstanding  Shares  tendered  on or before the
Expiration Date (as defined below) and not  theretofore  withdrawn in accordance
with Section 3. The term "Expiration  Date" means 12:00 Midnight,  New York City
time, on Wednesday,  September 6, 2000,  unless Ambanc,  in its sole discretion,
shall have  extended  the  period of time for which the Offer is open,  in which
event the term  "Expiration  Date"  shall mean the latest time and date at which
the Offer, as so extended by Ambanc,  shall expire. For purposes of the Offer, a
"business  day" means any day other than a Saturday,  Sunday or federal  holiday
and consists of the time period from 12:01 A.M. through 12:00 Midnight, New York
City time.

         If any or  all of the  conditions  set  forth  in  Section  12 are  not
satisfied prior to the Expiration Date, Ambanc may elect to (i) extend the Offer
and retain all tendered  Shares until the expiration of the Offer,  as extended,
subject  to  the  terms  of  the  Offer   (including  any  rights  of  tendering
shareholders to withdraw their Shares),  (ii) terminate the Offer and not accept
for payment any Shares and return all tendered Shares to tendering  shareholders
or (iii) waive any or all conditions  and,  subject to complying with applicable
rules and  regulations of the Securities  and Exchange  Commission  (the "SEC"),
accept for payment all Shares validly tendered. Ambanc does not presently intend
to waive any of the conditions,  however, Ambanc reserves the right to waive any
or all conditions.

         Ambanc expressly reserves the right, in its sole judgment,  at any time
or from time to time,  and  regardless of whether any of the events set forth in
Section 12 shall have  occurred or shall have been  determined by Ambanc to have
occurred,  (i) to extend the period of time  during  which the Offer is open and
thereby  delay  acceptance  for payment of, and the payment for, any Shares,  by
giving oral or written  notice of such  extension to the  Depositary and (ii) to
amend  the  Offer in any  respect  by  giving  oral or  written  notice  of such
amendment to the Depositary. The rights reserved by Ambanc in this paragraph are
in addition to Ambanc's  rights to terminate  the Offer  pursuant to Section 12.
Any such  extension,  amendment or  termination  will be followed as promptly as
practicable by public announcement  thereof, such announcement in the case of an
extension to be issued not later than 9:00 A.M., New York City time, on the next
business day after the previously scheduled Expiration Date. The manner in which
Ambanc will make such public  announcement may, if appropriate,  be limited to a
release to the Dow Jones News Service. The reservation by Ambanc of the right to
delay  acceptance  for  payment of or  payment  for any Shares is subject to the
provisions of applicable  law,  which require that Ambanc pay the  consideration
offered or return the Shares deposited by or on behalf of shareholders  promptly
after termination or withdrawal of the Offer.


                                       -9-





         If Ambanc decides to increase or decrease the consideration  offered in
the Offer,  and if at the time that notice of such increase or decrease is first
published, sent or given to holders of Shares in the manner specified above, the
Offer is scheduled to expire at any time earlier than the expiration of a period
ending on the tenth business day from, and including,  the date that such notice
is first so  published,  sent or given,  the Offer  will be  extended  until the
expiration  of such period of ten business  days.  If Ambanc waives any material
condition  to the  Offer,  or amends  the Offer in any other  material  respect,
Ambanc will extend the Offer and disseminate  additional  tender offer materials
to the extent required to comply with the SEC's interpretation of Rules 14d-4(c)
and  14d-6(d)  under  the  Securities  Exchange  Act of 1934,  as  amended  (the
"Exchange  Act").  The  minimum  period  during  which an offer must remain open
following  material changes in the terms of the offer or information  concerning
the  offer,  other  than a change  in  price,  will  depend  upon the  facts and
circumstances,  including  the  relative  materiality  of the change in terms or
information.

         Ambanc  previously  made a request to Cohoes pursuant to Section 220 of
the DGCL for Cohoes'  shareholder  lists and security  position  listings.  This
Offer to  Purchase,  the  related  Letter  of  Transmittal  and  other  relevant
materials will be mailed to record  holders of Shares,  and will be furnished to
brokers,  dealers,  commercial banks,  trust companies and similar persons whose
names,  or the names of whose nominees,  appear on the shareholder  lists or who
are listed as participants in a clearing  agency's security position listing for
subsequent  transmittal  to  beneficial  owners of  Shares  by Ambanc  following
receipt of such lists or listings from Cohoes.

         2.  ACCEPTANCE  FOR PAYMENT AND PAYMENT FOR SHARES.  Upon the terms and
subject to the conditions of the Offer  (including,  if the Offer is extended or
amended,  the terms and conditions of any such  extension or amendment),  Ambanc
will accept for payment,  and will pay for, all Shares validly  tendered  before
the  Expiration  Date and not properly  withdrawn in  accordance  with Section 3
(including Shares validly tendered and not withdrawn during any extension of the
Offer,  if the Offer is extended,  subject to the terms and  conditions  of such
extension) as soon as practicable after the Expiration Date. In addition, Ambanc
expressly  reserves the right, in its sole  discretion,  to delay the acceptance
for  payment of or payment  for Shares in order to comply,  in whole or in part,
with any other  applicable  law. Any such delays will be effected in  compliance
with Rule 14e-1(c)  under the Exchange Act  (relating to Ambanc's  obligation to
pay for or return  tendered  Shares promptly after the termination or withdrawal
of the Offer).

         The per Share  consideration  paid to any  shareholder  pursuant to the
Offer will be the highest per Share  consideration paid to any other shareholder
pursuant to the Offer.  In all cases,  payment for Shares  accepted  for payment
pursuant to the Offer will be made only after timely  receipt by the  Depositary
of (i)  certificates  for such  Shares (or timely  confirmation  (a  "Book-Entry
Confirmation")  of the book-entry  transfer of such Shares into the Depositary's
account at The Depository Trust Company (the "Book-Entry  Transfer  Facility")),
pursuant to the procedures set forth in Section 4, (ii) a properly completed and
duly executed  Letter of  Transmittal  (or facsimile  thereof) with any required
signature  guarantees,  or an Agent's  Message (as defined  below) in connection
with a book-entry transfer, and (iii) any other documents required by the Letter
of Transmittal.

         The term "Agent's Message" means a message, transmitted by a Book-Entry
Transfer  Facility to, and received by, the  Depositary  and forming a part of a
Book-Entry Confirmation, which states that such Book-Entry Transfer Facility has
received an express acknowledgment from the participant

                                      -10-





in such Book-Entry Transfer Facility tendering the Shares, that such participant
has  received  and agrees to be bound by the terms of the Letter of  Transmittal
and that Ambanc may enforce such agreement against the participant.

         For purposes of the Offer,  Ambanc will be deemed to have  accepted for
payment,  and  thereby  purchased,  Shares  properly  tendered to Ambanc and not
withdrawn, if, as and when Ambanc gives oral or written notice to the Depositary
of its acceptance for payment of the tenders of such Shares.  Payment for Shares
accepted  for  payment  pursuant  to the Offer  will be made by  deposit  of the
purchase  price  therefor with the  Depositary,  which will act as agent for the
tendering  shareholders  for  purposes  of  receiving  payment  from  Ambanc and
transmitting payment to tendering shareholders.

         UNDER NO  CIRCUMSTANCES  WILL AMBANC PAY INTEREST ON THE PURCHASE PRICE
OF THE  SHARES TO BE PAID BY  AMBANC,  REGARDLESS  OF ANY  DELAY IN MAKING  SUCH
PAYMENT.

         Upon the deposit of funds with the Depositary for the purpose of making
payments to tendering  shareholders,  Ambanc's  obligation  to make such payment
shall be satisfied and tendering shareholders must thereafter look solely to the
Depositary  for payment of amounts owed to them by reason of the  acceptance for
payment of Shares pursuant to the Offer.

         If any tendered  Shares are not  accepted  for payment  pursuant to the
terms and  conditions of the Offer for any reason or are not paid for because of
an invalid tender,  or if certificates  are submitted  representing  more Shares
than are tendered,  certificates  representing  unpurchased or untendered Shares
will be returned,  without expense to the tendering shareholder (or, in the case
of Shares tendered by book-entry  transfer of such Shares into the  Depositary's
account at a Book-Entry Transfer Facility as described in Section 4, such Shares
will be  credited  to an account  maintained  within  such  Book-Entry  Transfer
Facility),  as soon as  practicable  following the  expiration,  termination  or
withdrawal of the Offer.

         As required by SEC rules, if Ambanc were to vary the terms of the Offer
by  increasing  the  consideration  to be paid per Share,  Ambanc  will pay such
increased  consideration for all Shares purchased pursuant to the Offer, whether
or not such Shares have been tendered prior to such increase in consideration.

         Ambanc reserves the right to transfer or assign,  in whole or from time
to time in part, to one or more direct or indirect  subsidiaries of Ambanc,  the
right to  purchase  all or any  portion of the Shares  tendered  pursuant to the
Offer,  but any such  transfer  or  assignment  will not  relieve  Ambanc of its
obligations under the Offer and will in no way prejudice the rights of tendering
shareholders  to receive  payment for Shares  validly  tendered and accepted for
payment pursuant to the Offer.

         3. WITHDRAWAL  RIGHTS.  Except as otherwise provided in this Section 3,
tenders of Shares made pursuant to the Offer are  irrevocable.  Shares  tendered
pursuant to the Offer may be  withdrawn at any time before the  Expiration  Date
and, unless  theretofore  accepted for payment by Ambanc as provided herein, may
also be withdrawn at any time after October 10, 2000.


                                      -11-





         If, for any reason  whatsoever,  acceptance  for  payment of any Shares
tendered pursuant to the Offer is delayed,  or if Ambanc is unable to accept for
payment  or pay  for  Shares  tendered  pursuant  to the  Offer,  then,  without
prejudice to Ambanc's rights set forth herein, the Depositary may, nevertheless,
on behalf of Ambanc and subject to Rule 14e-1(c) under the Exchange Act,  retain
tendered Shares,  and such Shares may not be withdrawn except to the extent that
the tendering shareholder is entitled to and duly exercises withdrawal rights as
described in this Section 3. Any such delay will be  accompanied by an extension
of the Offer to the extent required by law.

         In order for a withdrawal to be effective,  a written,  telegraphic  or
facsimile  transmission  notice of  withdrawal  must be timely  received  by the
Depositary  at one of its addresses set forth on the back cover of this Offer to
Purchase.  Any notice of  withdrawal  must specify the name of the person having
tendered the Shares to be withdrawn,  the number of Shares to be withdrawn  and,
if certificates for Shares have been tendered, the name of the registered holder
of Shares as set forth in the tendered  certificate,  if different  from that of
the person who tendered such Shares. If certificates for Shares ("Certificates")
have been delivered or otherwise identified to the Depositary,  then, before the
physical  release  of  such  Certificates,  the  serial  numbers  shown  on such
Certificates  must be  submitted to the  Depositary  and the  signatures  on the
notice of  withdrawal  must be  guaranteed  by a firm  which is a bank,  broker,
dealer,  credit union,  savings association or other entity which is a member in
good   standing  of  the   Securities   Transfer   Agent's   Medallion   Program
(collectively,  "Eligible Institutions"),  unless such Shares have been tendered
for the  account of any  Eligible  Institution.  If Shares  have been  delivered
pursuant to the procedures  for  book-entry  delivery as set forth in Section 4,
any  notice of  withdrawal  must  also  specify  the name and the  number of the
account at the appropriate  Book-Entry Transfer Facility to be credited with the
withdrawn Shares and otherwise comply with such Book-Entry  Transfer  Facility's
procedures. Withdrawal of tenders of Shares may not be rescinded, and any Shares
properly withdrawn will be deemed not to be validly tendered for purposes of the
Offer.  Withdrawn  Shares may,  however,  be  retendered by repeating one of the
procedures described in Section 4 at any time before the Expiration Date.

         All questions as to the form and validity  (including  time of receipt)
of any  notice  of  withdrawal  will  be  determined  by  Ambanc,  in  its  sole
discretion,  whose determination shall be final and binding. None of Ambanc, the
Depositary,  the Information Agent or any other person will be under any duty to
give  notification of any defects or  irregularities in any notice of withdrawal
or will incur any liability for failure to give any such notification.

         4. PROCEDURE FOR TENDERING SHARES. To tender Shares validly pursuant to
the Offer,  a  shareholder  must cause a properly  completed  and duly  executed
Letter of  Transmittal  (or  facsimile  thereof),  with any  required  signature
guarantees,  or an Agent's Message in connection  with a book-entry  delivery of
Shares and any other required documents, to be received by the Depositary at one
of its  addresses set forth on the back cover of this Offer to Purchase and must
either cause  certificates  for tendered Shares to be received by the Depositary
at one of such  addresses or cause such Shares to be  delivered  pursuant to the
procedures   for   book-entry   delivery  set  forth  below  (and  a  Book-Entry
Confirmation  to be  received  by the  Depositary),  in  each  case  before  the
Expiration Date, or (in lieu of the foregoing) such shareholder must comply with
the guaranteed delivery procedure set forth below.


                                      -12-





         The Depositary  will  establish  accounts with respect to the Shares at
the Book-Entry Transfer Facilities for purposes of the Offer within two business
days after the date of this Offer to Purchase. Any financial institution that is
a participant in any of the  Book-Entry  Transfer  Facilities'  systems may make
book-entry  delivery of the Shares by causing such Book-Entry  Transfer Facility
to transfer such Shares into the  Depositary's  account in accordance  with such
Book-Entry Transfer Facility's  procedure for such transfer.  However,  although
delivery  of  Shares  may be  effected  through  book-entry  transfer  into  the
Depositary's   account  at  a  Book-Entry  Transfer  Facility,   the  Letter  of
Transmittal (or facsimile thereof),  properly completed and duly executed,  with
any required  signature  guarantees,  or an Agent's Message in connection with a
book-entry  delivery of Shares, and any other required  documents,  must, in any
case, be  transmitted  to and received by the Depositary at one of its addresses
set forth on the back cover of this  Offer to  Purchase  before  the  Expiration
Date,  or the tendering  shareholder  must comply with the  guaranteed  delivery
procedure described below.

         DELIVERY OF DOCUMENTS TO A BOOK-ENTRY  TRANSFER  FACILITY IN ACCORDANCE
WITH SUCH BOOK-ENTRY TRANSFER FACILITY'S PROCEDURES DOES NOT CONSTITUTE DELIVERY
TO THE DEPOSITARY.

         Signatures  on all  Letters of  Transmittal  must be  guaranteed  by an
Eligible  Institution,  except  in  cases  where  Shares  are  tendered  (i)  by
registered  holders  of  Shares  (which  term  includes  any  participant  in  a
Book-Entry  Transfer  Facility whose name appears on a security position listing
as the  owner of the  Shares)  who has not  completed  either  the box  entitled
"Special   Payment   Instructions"  or  the  box  entitled   "Special   Delivery
Instructions"  on the  Letter  of  Transmittal  or (ii)  for the  account  of an
Eligible  Institution.  See Instruction 1 of the Letter of  Transmittal.  If the
Certificates are registered in the name of a person other than the signer of the
Letter of  Transmittal,  or if payment is to be made to a person  other than the
registered owner of the Certificates surrendered,  then the Certificates must be
endorsed or  accompanied  by duly executed  stock powers,  in either case signed
exactly  as the name or names of the  registered  owner or owners  appear on the
Certificates,  with  the  signature(s)  on  the  Certificates  or  stock  powers
guaranteed as aforesaid. See Instruction 5 of the Letter of Transmittal.

         The method of delivery  of Shares,  the Letter of  Transmittal  and any
other  required  documents,  including  delivery  through a Book-Entry  Transfer
Facility, is at the option and risk of the tendering  shareholder,  and delivery
will be deemed made only when actually  received by the Depositary.  If delivery
is by mail, registered mail with return receipt requested,  properly insured, is
recommended.  In all cases,  sufficient  time should be allowed to ensure timely
delivery.

         Unless an exemption  applies under the applicable  law and  regulations
concerning  "backup  withholding"  of federal income tax, the Depositary will be
required to withhold,  and will withhold,  31% of the gross  proceeds  otherwise
payable  to a  shareholder  or other  payee  with  respect  to Shares  purchased
pursuant  to  the  Offer  if the  shareholder  does  not  provide  his  taxpayer
identification number (social security number or employer identification number)
and certify  that such  number is correct.  Each  tendering  shareholder  should
complete and sign the main signature  form and the Substitute  Form W-9 included
as part of the Letter of  Transmittal,  so as to  provide  the  information  and
certification  necessary  to avoid  backup  withholding,  unless  an  applicable
exemption  exists  and is proved  in a manner  satisfactory  to  Ambanc  and the
Depositary.


                                      -13-





         If a  shareholder  desires to tender  Shares  pursuant to the Offer and
such   shareholder's   Certificates  are  not  immediately   available  or  such
shareholder  cannot deliver the Certificates and all other required documents to
the  Depositary  before the Expiration  Date,  such Shares may  nevertheless  be
tendered, provided that all of the following conditions are satisfied:

                  (a) such tender is made by or through an Eligible Institution;
and

                  (b)  a  properly   completed  and  duly  executed   Notice  of
Guaranteed  Delivery,  substantially in the form provided by Ambanc, is received
by the Depositary, as provided below, on or before the Expiration Date; and

                  (c) the certificates  for all tendered Shares,  in proper form
for transfer (or a Book-Entry Confirmation),  together with a properly completed
and duly executed Letter of Transmittal (or facsimile thereof) with any required
signature  guarantees  (or,  in the case of a  book-entry  transfer,  an Agent's
Message)  and all other  documents  required  by the Letter of  Transmittal  are
received by the  Depositary  within three NASDAQ  trading days after the date of
execution of such Notice of Guaranteed Delivery to the Depositary.

         The  Notice  of  Guaranteed  Delivery  may  be  delivered  by  hand  or
transmitted by telegram,  facsimile  transmission  or mail to the Depositary and
must include a guarantee by an Eligible Institution in the form set forth in the
Notice of Guaranteed Delivery.

         In all cases,  payment for Shares  tendered  and  accepted  for payment
pursuant to the Offer will be made only after timely  receipt by the  Depositary
of (i)  Certificates,  or a  Book-Entry  Confirmation  of  such  Shares,  (ii) a
properly  completed  and duly  executed  Letter  of  Transmittal  (or  facsimile
thereof)  (or, in the case of a  book-entry  transfer,  an Agent's  Message) and
(iii) any other documents  required by the Letter of  Transmittal.  Accordingly,
payment might not be made to all tendering  shareholders  at the same time,  and
will depend upon when  Certificates or Book-Entry  Confirmations  of such Shares
are received by the Depositary.

         By executing a Letter of Transmittal as set forth above,  the tendering
shareholder  irrevocably  appoints designees of Ambanc, and each of them, as his
attorneys-in-fact  and  proxies,  in the  manner  set  forth  in the  Letter  of
Transmittal,  each with full power of  substitution,  to the full extent of such
shareholder's rights with respect to the Shares tendered by such shareholder and
accepted  for payment by Ambanc and with  respect to any and all other Shares or
other  securities  issued or  issuable in respect of such Shares on or after the
date of this Offer to Purchase. All such powers of attorney and proxies shall be
considered irrevocable and coupled with an interest in the tendered Shares. Such
appointment will be effective when, and only to the extent that,  Ambanc accepts
such Shares for payment. Upon such appointment,  all prior proxies given by such
shareholder  will be  revoked,  and no  subsequent  proxies may be given by such
shareholder (and if given,  will not be deemed  effective).  Ambanc's  designees
will be empowered,  among other things,  to exercise all voting and other rights
of such  shareholder  as they in their sole  discretion  may deem  proper at any
annual,  special  or  adjourned  meeting  of the  shareholders  of Cohoes or any
consent in lieu of any such meeting or otherwise.  Ambanc  reserves the right to
require that, in order for the Shares to be deemed validly tendered, immediately
upon Ambanc's acceptance for payment of such Shares, Ambanc must

                                      -14-





be able to  exercise  full  voting and other  rights of a record and  beneficial
holder, including acting by written consent, with respect thereto.

         All questions as to the validity,  form, eligibility (including time of
receipt) and  acceptance  for payment of any tender of Shares will be determined
by  Ambanc,  in its sole  discretion,  whose  determination  shall be final  and
binding.  Ambanc  reserves  the  absolute  right to reject  any and all  tenders
determined by it not to be in proper form or the acceptance for payment of which
may, in the opinion of its  counsel,  be  unlawful.  Ambanc  also  reserves  the
absolute  right to waive any of the  conditions  of the  Offer or any  defect or
irregularity in the tender of any Shares of any particular  shareholder  whether
or not  similar  defects  or  irregularities  are  waived  in the  case of other
shareholders. None of Ambanc, the Depositary, the Information Agent or any other
person  will  be  under  any  duty  to  give  notification  of  any  defects  or
irregularities  in tenders or shall incur any  liability for failure to give any
such  notification.  Ambanc's  interpretation of the terms and conditions of the
Offer (including the Letter of Transmittal and of the instructions thereto) will
be final and binding.

         The valid tender of Shares pursuant to one of the procedures  described
above will  constitute the tendering  shareholder's  acceptance of the terms and
conditions  of the Offer.  Ambanc's  acceptance  for payment of Shares  tendered
pursuant to the Offer will constitute a binding  agreement between the tendering
shareholder  and  Ambanc  upon the terms and  subject to the  conditions  of the
Offer.

         5. CERTAIN FEDERAL INCOME TAX CONSEQUENCES.  The following summary is a
general   discussion  of  the  material   federal  income  tax  consequences  to
shareholders  of Cohoes who  tender  their  Shares  pursuant  to the Offer.  The
discussion  is based upon the  Internal  Revenue  Code of 1986,  as amended (the
"Code"), applicable Treasury regulations thereunder,  administrative procedures,
rulings and decisions in effect on the date hereof,  all of which are subject to
change (possibly with retroactive effect) by legislation,  administrative action
or  judicial  decision.  No ruling has or will be  requested  from the  Internal
Revenue  Service (the  "Service")  regarding the  anticipated  tax  consequences
described herein. The discussion set forth below does not discuss all aspects of
federal  income  taxation  that may be relevant to a particular  shareholder  in
light  of  his  personal  investment   circumstances  or  to  certain  types  of
shareholders subject to special treatment under the federal income tax laws (for
example, tax-exempt organizations, foreign corporations and individuals who have
received  Shares as  compensation  or who are not  citizens or  residents of the
United  States)  and does not  discuss  any  aspect of state,  local or  foreign
taxation. The discussion is limited to those shareholders who hold the Shares as
capital assets  (generally,  property held for investment) within the meaning of
Section 1221 of the Code.

         SHAREHOLDERS  SHOULD CONSULT THEIR  INDIVIDUAL TAX ADVISORS  CONCERNING
THE SPECIFIC TAX CONSEQUENCES OF THE OFFER, INCLUDING THE APPLICATION AND EFFECT
OF FEDERAL, STATE, LOCAL, FOREIGN AND OTHER TAX LAWS.

         Sale of Shares for Cash.  The sale of Shares by tendering  shareholders
will be a taxable  event for  federal  income  tax  purposes,  and may also be a
taxable  transaction  under  applicable  state,  local and foreign  tax laws.  A
tendering shareholder will generally recognize gain or loss equal to the

                                      -15-





difference  between the amount of cash received by the  shareholder  pursuant to
the Offer and the  Shareholder's  aggregate  tax  basis in the  Shares  tendered
pursuant to the Offer. Gain or loss will be calculated separately for each block
of Shares tendered by the shareholder and purchased pursuant to the Offer.

         Gain or loss recognized by a tendering shareholder will be capital gain
or loss if the Shares are held as capital assets. Such capital gain or loss will
be  classified  as a  long-term  capital  gain or loss to the  extent  that  the
tendered  Shares have a holding period of more than twelve months at the time of
their purchase  pursuant to the Offer.  Long-term  capital gains recognized by a
tendering  individual  shareholder  will be subject to tax at a maximum marginal
federal  rate  of  20%.  Short-term  capital  gains  recognized  by a  tendering
individual shareholder will be subject to tax at a maximum marginal federal rate
of 39.6%. Net capital gains recognized by a tendering corporate shareholder will
be subject to tax at a maximum marginal federal rate of 38%.

         Backup Withholding.  To prevent "backup  withholding" of federal income
tax on payments of cash to a shareholder of Cohoes who exchanges Shares for cash
in the Offer,  a shareholder of Cohoes must,  unless an exception  applies under
the  applicable  law and  regulations,  provide the payor of such cash with such
shareholder's  correct  taxpayer  identification  number ("TIN") on a Substitute
Form W-9 and certify under  penalties of perjury that such number is correct and
that such  shareholder is not subject to backup  withholding.  A Substitute Form
W-9  is  included  in  the  Letter  of  Transmittal.  If  the  correct  TIN  and
certifications  are not provided,  a $50 penalty may be imposed on a shareholder
of Cohoes by the Service,  and cash received by such shareholder in exchange for
Shares in the Offer may be  subject  to backup  withholding  at the rate of 31%.
Amounts paid as backup withholding do not constitute an additional tax and would
be allowable as a credit against the shareholder's federal income tax liability.

         6. PRICE RANGE OF SHARES. The Shares are quoted on the Nasdaq under the
symbol "COHB." The following table sets forth,  for the periods  indicated,  the
reported high and low sales prices per Share,  and the amount of cash  dividends
paid per Share for each such period.  This  information  is derived from Cohoes'
Proxy Statement-Prospectus dated July 3, 2000 relating to the Special Meeting of
Shareholders  to be held  August 17,  2000 for the  purpose of  considering  the
Hudson-Cohoes  Merger (the "Cohoes' Proxy Statement") as filed with the SEC. The
Common Stock of Cohoes did not begin trading until January 1999.


                Quarter Ended                     High               Low
                -------------                     ----               ---
             March 31, 1999                      $13.00             $10.38
             June 30, 1999                       $12.00             $9.25
             September 30, 1999                  $13.13             $11.56
             December 31, 1999                   $12.63             $9.38
             March 31, 2000                      $10.31             $9.38
             June 30, 2000                       $14.69             $9.69


                                      -16-


         On July 26, 2000, the last day on which the shares were traded prior to
Ambanc's issuance of the press release  announcing its intention to commence the
Offer, the reported closing sale price per Share on the Nasdaq was $13.938.

COHOES SHAREHOLDERS ARE URGED TO OBTAIN A CURRENT MARKET
QUOTATION FOR THE SHARES.

         7.  EFFECT OF THE OFFER ON THE MARKET FOR THE SHARES AND  EXCHANGE  ACT
REGISTRATION.  As of June 22, 2000,  according to the Cohoes'  Proxy  Statement,
there were 7,912,255  Shares  outstanding,  and there were  approximately  4,600
shareholders  of record,  not including the number of persons or entities  whose
stock is held in nominee or "street"  name through  various  brokerage  firms or
other financial institutions.

         The Shares are quoted on the Nasdaq.  The tender of Shares  pursuant to
the Offer would reduce the number of Shares that might  otherwise trade publicly
and the number of holders of Shares and could adversely affect the liquidity and
market value of the untendered Shares.

         If the Offer is  consummated  and the Shares are  accepted for payment,
pending consummation of the Ambanc-Cohoes Merger, the reduction in the number of
Shares that are  publicly  traded and the  reduction in the number of holders of
Shares could  adversely  affect the  liquidity and market value of the remaining
Shares held by persons other than Ambanc and its  affiliates and could result in
the delisting of the Shares from Nasdaq.  The  availability of price  quotations
will depend upon the number of holders, the aggregate market value of the Shares
remaining,  the  interest of  securities  firms in  maintaining  a market in the
Shares and other factors.

         In the  Ambanc-Cohoes  Merger,  Cohoes  would be  merged  with and into
Ambanc,  and Ambanc would be the surviving  corporation.  Each untendered  Share
would be  purchased  for $16.50 in cash,  the same price  received  in  Ambanc's
Offer.  The  registration  of the Shares under Section 12(g) of the Exchange Act
would be terminated.

         8.  CERTAIN  INFORMATION   CONCERNING  COHOES.  Cohoes  is  a  Delaware
corporation  with its  principal  executive  offices  located at 75 Remsen Road,
Cohoes, New York 12047. The telephone number of the principal  executive offices
is (518) 233-6500.

         Cohoes was formed at the direction of Cohoes  Savings Bank in September
1998 for the purpose of becoming a savings and loan  holding  company and owning
all of the outstanding stock of Cohoes Savings Bank. According to Cohoes' Annual
Report on Form 10-K for the fiscal year ended  September 30, 1999,  Cohoes' only
business is the business of its primary  subsidiary,  Cohoes Savings Bank, which
is  primarily  engaged in banking and lending  services,  originating  primarily
residential mortgage loans, and to a lesser extent,  commercial and multi-family
real estate, consumer and commercial business loans. Its deposits are insured up
to applicable limits by the Federal Deposit Insurance Corporation("FDIC").

         According to the Cohoes Proxy Statement, at March 31, 2000, the Cohoes'
branch network consisted of 21 locations throughout Albany, Greene,  Rensselaer,
Saratoga, Schenectady and Warren

                                      -17-





Counties,  New York. As reported in the Cohoes Proxy Statement,  as of March 31,
2000, Cohoes had total consolidated assets of $704.4 million, deposits of $491.5
million and shareholders' equity of $121.1 million.

         Cohoes is  subject  to the  informational  filing  requirements  of the
Exchange  Act and in  accordance  therewith is obliged to file reports and other
information with the SEC relating to its business, financial condition and other
matters.  Such  reports and other  information  may be  inspected  at the public
reference  facilities  of the SEC at 450 Fifth  Street  N.W.,  Washington,  D.C.
20549, and at the regional offices of the SEC at Northwestern Atrium Center, 500
West Madison Street,  Suite 1400, Chicago,  Illinois 60661 and Seven World Trade
Center,  Suite 1300, New York, New York 10048. Copies may be obtained,  by mail,
upon  payment of the SEC's  customary  charges,  or by writing to its  principal
office at 450 Fifth Street, N.W., Washington, D.C. 20549. Such material may also
be  accessed  electronically  at the SEC's site on the World Wide Web located at
http://www.sec.gov.  Except as otherwise noted in this Offer to Purchase, all of
the  information  with respect to Cohoes set forth in this Offer to Purchase has
been derived from publicly available information.

         9.  CERTAIN  INFORMATION   CONCERNING  AMBANC.  Ambanc  is  a  Delaware
corporation with its principal  executive offices located at 11 Division Street,
Amsterdam,  New York 12010.  The  telephone  number of the  principal  executive
offices  is (518)  842-7200.  Ambanc was formed at the  direction  of  Amsterdam
Savings  Bank,  FSB in June 1995 for the  purpose of becoming a savings and loan
holding  company and owning all of the  outstanding  stock of Amsterdam  Savings
Bank,  FSB (now  known as Mohawk  Community  Bank).  In  November  1998,  Ambanc
acquired AFSALA Bancorp. Inc. and its wholly owned subsidiary, Amsterdam Federal
Bank at which  time  Amsterdam  Savings  Bank,  FSB  changed  its name to Mohawk
Community Bank.

         Ambanc's  only  business is the  business  of its  primary  subsidiary,
Mohawk  Community  Bank,  which is  primarily  engaged  in banking  and  lending
services,  originating primarily one- to four-family residential mortgage loans,
home equity loans and consumer  loans,  and to a lesser  extent,  commercial and
multi-family  real  estate,  and  commercial  business  loans.  Its deposits are
insured up to applicable limits by the FDIC.

         Mohawk  Community  Bank  serves  customers  through 17 upstate New York
offices, located in Fulton, Montgomery,  Schenectady,  Saratoga, Albany, Otsego,
Chenango  and  Schoharie  counties.  As of March  31,  2000,  Ambanc  had  total
consolidated   assets  of  $721.3  million,   deposits  of  $464.3  million  and
shareholders'  equity of $75.4 million.  Ambanc's  common stock is traded on the
Nasdaq under the symbol "AHCI".

         Ambanc is  subject  to the  informational  filing  requirements  of the
Exchange  Act and in  accordance  therewith is obliged to file reports and other
information with the SEC relating to its business, financial condition and other
matters.  Such  reports and other  information  may be  inspected  at the public
reference  facilities  of the SEC at 450 Fifth  Street  N.W.,  Washington,  D.C.
20549, and at the regional offices of the SEC at Northwestern Atrium Center, 500
West Madison Street,  Suite 1400, Chicago,  Illinois 60661 and Seven World Trade
Center,  Suite 1300, New York, New York 10048. Copies may be obtained,  by mail,
upon payment of the SEC's customary charges, or by

                                      -18-





writing to its principal  office at 450 Fifth  Street,  N.W.,  Washington,  D.C.
20549.  Such material may also be accessed  electronically  at the SEC's site on
the World Wide Web located at http://www.sec.gov.

         Schedule II hereto sets forth the number of Shares  beneficially  owned
by Ambanc and its  directors  and  executive  officers  (and  associates of such
persons) as of the date of this Offer to Purchase.  As of the date of this Offer
to Purchase,  Ambanc  beneficially owned 304,650 Shares.  Except as set forth in
Schedule II hereto,  to the knowledge of Ambanc,  none of the persons  listed in
Schedule I hereto, nor any affiliate,  associate or majority-owned subsidiary of
such persons,  beneficially owns any equity security of Cohoes. To the knowledge
of Ambanc,  none of the persons listed in Schedule I hereto,  nor any associates
of such persons) has effected any  transaction in any equity  security of Cohoes
during the past 60 days.  Information  with respect to transactions  effected in
the Shares by Ambanc  during  the past 60 days is set forth  under Item 8 in the
Schedule TO filed with the SEC by Ambanc on August 9, 2000.

         Except as otherwise  stated in this Offer to  Purchase,  (i) there have
not been any contracts,  transactions or negotiations between Ambanc, or, to the
knowledge of Ambanc,  any of the persons listed in Schedule I hereto, on the one
hand, and Cohoes or any of its directors,  officers or affiliates,  on the other
hand, concerning a merger, consolidation or acquisition, a tender offer or other
acquisition of securities, an election of directors, or a sale or other transfer
of a material amount of assets,  or that are otherwise  required to be disclosed
pursuant to the rules and regulations of the SEC, and (ii) neither Ambanc,  nor,
to the knowledge of Ambanc,  any of the persons  listed in Schedule I hereto has
any contract,  arrangement,  understanding or relationship  with any person with
respect to any securities of Cohoes.

         10. BACKGROUND OF THE OFFER;  CONTACTS WITH COHOES.  From time to time,
Ambanc is involved in due diligence investigations, discussions and negotiations
concerning  possible  business  combination  transactions  with other  financial
institutions.  Ambanc  generally seeks to acquire  financial  institutions  that
would: (i) complement its overall  strategic focus;  (ii) provide  opportunities
for growth in markets where the target financial  institution conducts business;
and (iii) improve Ambanc's retail banking franchise.

         In August 1998,  Ambanc  retained  Sandler  O'Neill & Partner,  L.P. to
explore strategic options for Ambanc which could result in the sale or merger of
Ambanc.  As part of this process,  Cohoes was contacted to ascertain  whether it
had any interest in a strategic  combination with Ambanc.  In the late spring of
1999, Cohoes indicated an interest  regarding a possible  acquisition of Ambanc.
In furtherance of this possible business combination, the parties entered into a
confidentiality   agreement  whereupon  Ambanc  furnished  Cohoes  with  certain
business and other  information  regarding  Ambanc.  In June 1999, Cohoes made a
nonbinding  expression  of  interest  to acquire  Ambanc  which,  after  further
negotiations  with  Cohoes,  was  ultimately  rejected  by the  Ambanc  Board of
Directors in July,  1999.  Subsequently,  in  September  and October  1999,  the
Presidents  of  the  two  companies   informally   discussed  possible  business
combinations  and the  parties  recommenced  discussions  regarding  a  possible
acquisition  of  Ambanc  by  Cohoes.  In  December  1999,  Cohoes  again  made a
nonbinding  expression  of interest to acquire  Ambanc.  After  several weeks of
negotiations and due diligence, Cohoes withdrew its proposal in January 2000.


                                      -19-





         On April 25, 2000,  Cohoes and Hudson  announced  that they had entered
into the Hudson  Merger  Agreement and the Hudson  Option  Agreement.  Following
announcement  of the Proposed  Hudson  Merger,  Ambanc  reviewed  its  strategic
options in light of the Proposed Hudson Merger.

         On June 15,  2000  Ambanc  made an  acquisition  proposal to the Cohoes
Board of Directors in which  Ambanc  would  acquire  Cohoes in a merger in which
each share of Cohoes'  common  stock would be exchanged  for $14.75 in cash.  On
June 20,  2000,  Cohoes and Hudson  River  jointly  made a  nonbinding  offer to
acquire Ambanc in an all cash acquisition.  On June 23, 2000, representatives of
Ambanc met with  representatives of Cohoes and Hudson River to discuss the joint
nonbinding  proposal to acquire Ambanc.  In addition,  on June 23, 2000,  Ambanc
revised its  proposal  to Cohoes and  offered to purchase  each share of Cohoes'
common  stock  for  $15.25  in  cash.  On June 26,  2000,  Ambanc  rejected  the
nonbinding  proposal  from Cohoes and Hudson River.  The June 23, 2000,  revised
proposal of Ambanc to acquire Cohoes was rejected by Cohoes in July 2000.

         On July 27, 2000,  Ambanc  announced its intention to commence a tender
offer to purchase each outstanding share of Cohoes for $16.50 per share in cash.

         11. PURPOSE OF THE OFFER; PLANS FOR COHOES. The purpose of the Offer is
to enable  Ambanc to acquire  control  of,  and  ultimately  the  entire  equity
interest in, Cohoes.  The Offer is intended to facilitate the acquisition of all
of the outstanding  Shares. If the Offer is consummated,  Cohoes would be merged
with and into Ambanc, with Ambanc being the surviving entity.

         Upon  completion  of the  Offer,  Ambanc  intends  to take  appropriate
actions to optimize and rationalize the combined  entities' assets,  operations,
management,  personnel,  general  and  administrative  functions  and  corporate
structure.  Except as otherwise  discussed  elsewhere in this Offer to Purchase,
Ambanc  does  not  have  any  plans  or  proposals   that  would  result  in  an
extraordinary  corporate  transaction,  such  as  a  merger,  reorganization  or
liquidation,  or sale of a material amount of assets, involving Cohoes or any of
its  subsidiaries,  or any material  changes in Cohoes'  corporate  structure or
business, or any change in its management.  Although Ambanc has requested Cohoes
to do so,  Cohoes  has not  provided  Ambanc  with any  access  to its books and
records, however, so Ambanc might decide upon such changes once Ambanc completes
such a review.  If the Cohoes  shareholders  reject the proposed  sale to Hudson
River, Ambanc expects that Cohoes will have an annual meeting of shareholders in
late 2000 (the "2000  Annual  Meeting"),  at which  directors of Cohoes would be
elected.  On  August  3,  2000,  Ambanc  announced  that  it had  submitted  the
nominations of two  individuals for election to the Board of Directors of Cohoes
at the 2000 Annual Meeting, if held. Further, Ambanc may nominate two additional
nominees  at a later date as there  would be a total of four board  seats up for
election at the 2000 Annual Meeting, if held.

         12.  CERTAIN CONDITIONS OF THE OFFER.

GENERAL

         Notwithstanding  any other provisions of the Offer,  Ambanc will not be
required  to  accept  for  payment  or pay  for any  Shares,  may  postpone  the
acceptance  for payment of Shares  tendered and may terminate or amend the Offer
as provided herein if any of the following conditions are not

                                      -20-





satisfied:  (i) the  Minimum  Tender  Condition,  (ii) the  Regulatory  Approval
Condition, (iii) the Removal of Impediments Condition; (vi) the Material Adverse
Effect Condition;  (vii) the termination of the Hudson-Cohoes  Merger Agreement;
(viii) the termination of the  Hudson-Cohoes  Option Agreement and the surrender
by Hudson  to  Cohoes of the  option  granted  to  Hudson  thereunder;  (ix) the
shareholders of Cohoes do not approve the Hudson-Cohoes  Merger;  (x) Ambanc and
Cohoes enter into a definitive  Ambanc-Cohoes Merger agreement.  Ambanc reserves
the absolute  right to waive any of the  conditions  of the Offer other than the
Regulatory Approval Condition.

 MINIMUM TENDER CONDITION

         The Offer is  conditioned  upon there being  validly  tendered  and not
withdrawn prior to the Expiration  Date a number of Shares which,  together with
those Shares beneficially owned by Ambanc would represent at least a majority of
Shares  outstanding  on a fully  diluted  basis (i.e.,  as though all options or
other  securities  convertible  into  or  exercisable  for  Shares  had  been so
converted, exercised or exchanged) on the date the Shares are accepted by Ambanc
pursuant to the Offer.  According  to the Cohoes'  Proxy  Statement,  there were
7,912,255  Shares  outstanding  on June 22, 2000.  Based on this number,  Ambanc
believes that the Minimum Tender Condition would have been satisfied on June 22,
2000 if, in addition to the  304,650  Shares  currently  owned  beneficially  by
Ambanc,  at least 3,651,478  Shares or 46.15% of the Shares  outstanding on June
22, 2000,  had been validly  tendered  pursuant to the Offer and not  withdrawn.
According to the Cohoes' Proxy  Statement  dated  September 24, 1999 relating to
the 1999 Annual Meeting of Shareholders (the "Annual Meeting Proxy"),  there are
953,522 Shares in the aggregate  reserved for issuance pursuant to Cohoes' Stock
Option and Incentive  Plan. As reported in the Annual Meeting Proxy,  options to
purchase  866,055 Shares had been awarded as of September 1, 1999.  These awards
vest over five years,  beginning  on the  anniversary  of the date of the grant,
which  was  July 2,  1999,  thus,  as of  July 2,  2000,  173,011  options  were
exercisable  under Cohoes' Stock Option and Incentive  Plan. The exercise of any
of these  options  would  increase  the  number of Shares  that would need to be
validly  tendered  pursuant  to the  Offer  and not  withdrawn  in order for the
Minimum Tender Condition to be satisfied.  Ambanc reserves the right (but is not
obligated),  subject to the rules and  regulations of the SEC, to waive or amend
the Minimum Tender Condition and to purchase fewer than such number of Shares as
would satisfy the Minimum Tender Condition pursuant to the Offer.

REGULATORY APPROVAL CONDITION

         The  Offer  and  the  Ambanc-Cohoes   Merger  are  subject  to  certain
governmental  approvals.  See Section 17.  While  Ambanc  expects to receive the
requisite  governmental  approvals,  Ambanc  cannot  predict  when,  or give any
assurance  that, such approvals will be received.  In any event,  the Regulatory
Approval Condition is a non-waivable condition to the Offer.

REMOVAL OF IMPEDIMENTS CONDITION

         Cohoes'  Certificate of  Incorporation  provides that certain  business
combinations with an interested  shareholder require the affirmative vote of the
holders of at least 80% of the voting power of the  outstanding  shares of stock
of  Cohoes  entitled  to  vote  in the  election  of  directors.  Generally,  an
interested  shareholder  is any person,  other than Cohoes or any  subsidiary of
Cohoes, that is the

                                      -21-





beneficial owner,  directly or indirectly,  of more than 10% of the voting power
of the outstanding voting stock of Cohoes. The business  combination  provisions
relating to  interested  shareholders  also apply to  affiliates  of  interested
shareholders.  Business  combinations  subject to the 80%  shareholder  approval
requirement  include,  among other things, any merger or consolidation of Cohoes
or any subsidiary of Cohoes with the  interested  shareholder or an affiliate of
the  interested   shareholder.   A  business   combination  with  an  interested
shareholder may avoid the 80% shareholder approval requirement,  needing only an
affirmative vote of a majority of the voting power of the outstanding  shares of
stock of Cohoes  entitled to vote in the election of directors,  if the business
combination  has been approved by a majority of the  disinterested  directors of
Cohoes,  the fair market  value of the  consideration  received per share by the
holders of Cohoes  Common  Stock  equals or exceeds  the higher of certain  fair
price determinations, the interested shareholder and its affiliates refrain from
engaging in certain self-dealing  transactions with Cohoes prior to consummation
of the business combination, and a proxy or information statement describing the
proposed  business  combination and complying with the  requirements of the 1934
Act has been  mailed to  shareholders  of  Cohoes at least 30 days  prior to the
consummation of such business  combination.  Cohoes'  Certificate  also provides
that, with certain exceptions, a beneficial owner of more than 10% of the voting
stock of Cohoes is  prohibited  from voting more than 10% of the stock of Cohoes
(the "10% Limit").

         The DGCL contains a statute designed to provide  Delaware  corporations
with  protection  against  certain  takeover  attempts.  The  statute,  which is
codified  in  Section  203 of the DGCL  ("Section  203"),  among  other  things,
prohibits  Cohoes (a Delaware  corporation)  from  engaging in certain  business
combinations  (including a merger) with a person who is the beneficial  owner of
15% or more of Cohoes'  outstanding  voting stock (an "Interested  Shareholder")
during the three-year period following the date such person became an Interested
Shareholder.  This  restriction does not apply if: (i) before such person became
an Interested  Shareholder,  the board of directors  approved the transaction in
which the Interested  Shareholder becomes an Interested  Shareholder or approved
the business  combination;  or (ii) upon  consummation of the transaction  which
resulted in the shareholder becoming an Interested  Shareholder,  the Interested
Shareholder owned at least 85% of the voting stock of Cohoes  outstanding at the
time the transaction commenced, excluding for purposes of determining the number
of shares  outstanding,  those shares owned by (a) persons who are directors and
also officers and (b) employee stock plans in which employee participants do not
have the right to determine  confidentially  whether  shares held subject to the
plan will be tendered in a tender or exchange  offer;  or (iii) on or subsequent
to such date, the business combination is approved by the board of directors and
authorized at an annual or special meeting of  shareholders,  and not by written
consent,  by the  affirmative  vote of at least  two-thirds  of the  outstanding
voting  stock  which is not owned by the  Interested  Shareholder.  Section  203
provides that a Delaware  corporation may exempt itself from the requirements of
the  statute by  adopting  an  amendment  to the  corporation's  certificate  of
incorporation.  Cohoes' Certificate does not exempt Cohoes from the requirements
of Section 203. A copy of Section 203 is attached hereto as Schedule III.

         The New York charter of Cohoes Savings Bank,  the thrift  subsidiary of
Cohoes, contains a provision which currently prevents any person from acquiring,
directly  or  indirectly,  more than ten percent of any class of stock of Cohoes
Savings Bank. Because Cohoes Savings Bank is owned and controlled by Cohoes, the
acquisition  of Cohoes Common Stock pursuant to the Offer may be deemed to be an
indirect  acquisition  of the equity  securities  of Cohoes  Savings Bank which,
accordingly, may result in a violation of the New York charter of Cohoes Savings
Bank. This

                                      -22-





ownership limitation is being maintained on a permissive basis by Cohoes Savings
Bank and may be lawfully  removed by amendment  to its  charter.  The charter of
Cohoes  Savings  Bank could be  amended  through  the  adoption  of  appropriate
resolutions  by the  board  of  directors  of  Cohoes  Savings  Bank  -- who are
substantially  the  same  individuals  as  the  directors  of  Cohoes  --  which
resolutions  would  thereafter  be  approved by the Cohoes  Board  acting on its
behalf as the sole shareholder of Cohoes Savings Bank.

         All  of  the  above  are   impediments  to  the   consummation  of  the
Ambanc-Cohoes  Merger. The Removal of Impediments Condition provides that Ambanc
is not required to purchase  shares of Cohoes  Common  Stock and may  terminate,
amend or extend the Offer, unless the above impediments are removed. This can be
satisfied by the Cohoes Board approving the Offer and the Ambanc-Cohoes  Merger.
The   consideration   offered  pursuant  to  the  Offer  meets  the  fair  price
requirements of the business combination  provisions of Cohoes' Certificate and,
except for the required approval of Cohoes' directors, satisfaction of the other
conditions would be within Ambanc's  control.  Accordingly,  the approval of the
Offer and the Ambanc-Cohoes  Merger by the Cohoes Board (other than any director
nominated by Ambanc and  thereafter  elected to the Cohoes  Board) would obviate
the 80% vote  requirement  of  Cohoes'  Certificate  and also make  Section  203
inapplicable to the  transaction.  As part of its approval of the  Ambanc-Cohoes
Merger,  the Cohoes Board would also have to: (i) make appropriate  arrangements
for  amendment to the charter of Cohoes  Savings  Bank to  eliminate  the 10% or
greater  ownership  prohibition  contained  therein;  and (ii) make  appropriate
arrangements  to permit all shares of Cohoes Common Stock  tendered  pursuant to
the Offer to be voted on the merger of Cohoes into Ambanc pursuant to the second
proviso to the  definition of  beneficial  ownership in Article  FOURTH  Section
(C)(2)(b) of Cohoes' Certificate.

         The exact timing and details of the Ambanc-Cohoes Merger between Ambanc
and  Cohoes  following  the Offer  will  necessarily  depend  upon a variety  of
factors,  including  the means  and  methods  employed  by the  Cohoes  Board in
approving the  Ambanc-Cohoes  Merger.  Although Ambanc intends to propose and to
seek consummation of the Ambanc-Cohoes Merger as soon as reasonably  practicable
following  the  Offer,  no  assurances  can be given  when such  merger  will be
effected.

MATERIAL ADVERSE EFFECT CONDITION

         The Material Adverse Effect Condition will be deemed satisfied  unless,
after June 30, 1999 and prior to the time of acceptance  for payment and payment
for any  shares of Cohoes  Common  Stock  (whether  or not any  shares of Cohoes
Common Stock have  theretofore been accepted for payment or paid for pursuant to
the Offer) any of the following events occur:

         (a) there is threatened, instituted or pending any action or proceeding
before any domestic or foreign court or governmental  agency or other regulatory
or  administrative  agency or commission,  including but not limited to any such
investigation,  action or proceeding  which was in existence on or prior to June
30, 1999: (i) seeking to obtain any material  damages from Cohoes;  (ii) seeking
to prohibit or restrict  Cohoes'  ownership or operation of any material portion
of its business or assets,  or to compel  Cohoes to dispose of or hold  separate
all or any material portion of Cohoes' business or assets; (iii) which otherwise
is reasonably  likely to materially  adversely affect Cohoes or the value of the
Cohoes Common Stock;  (iv) which imposes material  limitations on the ability of
Ambanc

                                      -23-





effectively  to acquire or hold or to exercise  full rights of  ownership of the
Cohoes Common Stock, including, without limitation, the right to vote the shares
of Cohoes Common Stock acquired by it on all matters  properly  presented to the
shareholders of Cohoes or any material condition  unacceptable to Ambanc; or (v)
which is  reasonably  likely  to  enjoin,  restrain  or  prohibit,  or result in
material  damages  in  respect  of, or which is related to or arises out of, the
Offer  or the  Ambanc-Cohoes  Merger  or the  consummation  of the  transactions
contemplated hereby; or

         (b) any change (or any  condition,  event or  development  involving  a
prospective  change) has occurred or is threatened in the business,  properties,
assets, liabilities, capitalization,  shareholders' equity, financial condition,
results of operations or prospects of Cohoes (including, without limitation, the
disposition  of assets)  which,  in the sole  judgment  of Ambanc,  is or may be
materially  adverse to Cohoes or to the value of the  Cohoes  Common  Stock,  or
Ambanc  becomes  aware of any fact  (including,  but not  limited  to,  any such
change, condition,  event or development) which, in the sole judgment of Ambanc,
has or may have materially adverse significance with respect to Cohoes or any of
its  subsidiaries or to the value of the Cohoes Common Stock;  and which, in the
sole judgment of Ambanc, makes it inadvisable to proceed with the Offer.

         The foregoing  conditions are for the sole benefit of Ambanc and may be
asserted  by Ambanc  regardless  of the  circumstances  giving  rise to any such
conditions  (including  any  action or  inaction  by Ambanc) or may be waived by
Ambanc in whole or in part. The failure by Ambanc at any time to exercise any of
the foregoing rights will not be deemed a waiver of any such right and each such
right will be deemed a  continuing  right  which may be asserted at any time and
from time to time.

TERMINATION OF THE HUDSON-COHOES MERGER AGREEMENT

         The Offer is conditioned,  among other things,  upon Cohoes terminating
the Hudson-Cohoes  Merger Agreement.  The Hudson-Cohoes  Merger Agreement may be
terminated as follows: (i) by the mutual consent of Cohoes and Hudson; (ii) by a
non-breaching  party if the other party has breached in any material respect any
of its  covenants,  representations  or warranties  and such breach is not cured
within 30 days  after  notice of such  breach is given to the  breaching  party;
(iii) by either Cohoes or Hudson if any necessary  governmental  approval is not
obtained;  (iv) by  either  party if the  shareholders  of  either  party do not
approve the  Hudson-Cohoes  Merger;  or (v) by either party if the Hudson-Cohoes
Merger has not occurred by February 28, 2001.

         Cohoes and Hudson can, by mutual consent,  terminate the  Hudson-Cohoes
Merger Agreement.  However,  if they do not, the Hudson-Cohoes  Merger Agreement
can be  terminated  by Cohoes if the  Cohoes  shareholders  do not  approve  the
Hudson-Cohoes  Merger. See Section 12.  Alternatively,  Cohoes may terminate the
Hudson-Cohoes  Merger Agreement if the Hudson-Cohoes  Merger has not occurred by
February 28, 2001.

         Ambanc  does  not  know  if the  Cohoes  Board  will so  terminate  the
Hudson-Cohoes  Merger  Agreement  under any of these  circumstances.  The Cohoes
Board did not retain the right to terminate the  Hudson-Cohoes  Merger Agreement
in the event of an offer superior to that contained in the Hudson-Cohoes  Merger
Agreement.



                                      -24-





TERMINATION OF THE HUDSON-COHOES OPTION AGREEMENT

         The Offer is conditioned,  among other things,  upon the termination of
the Hudson-Cohoes  Option Agreement and the surrender by Hudson to Cohoes of the
options granted to Hudson  thereunder.  The  Hudson-Cohoes  Option Agreement was
entered into in connection with the Hudson-Cohoes  Merger  Agreement.  Under the
Hudson-Cohoes   Option  Agreement,   Cohoes  granted  Hudson  an  unconditional,
irrevocable  option to purchase up to 1,574,538 shares of Cohoes Common Stock at
a price per share of $9.8125.

         Hudson  may  exercise  the option  if,  but only if,  both an  "Initial
Triggering Event" and a "Subsequent  Triggering Event" has occurred prior to the
occurrence of an "Exercise Termination Event."

         An "Initial  Triggering  Event" includes any of the following events or
transactions:  (i)  Cohoes,  without  Hudson's  prior  consent,  enters  into an
agreement  to be acquired  (i.e.,  10% or more of the voting power of the Cohoes
Common  Stock),  or the Cohoes  Board  recommends  that the Cohoes  shareholders
approve such an acquisition  transaction with any person other than Hudson; (ii)
any person  other than Hudson  acquires  beneficial  ownership  (or the right to
acquire beneficial ownership) of 10% or more of the outstanding shares of Cohoes
Common Stock; (iii) any person publicly announces that it has made or intends to
make a proposal to engage in an acquisition  transaction  with Cohoes;  (iv) the
Cohoes Board  (without  having  received  Hudson's  consent):  (a) withdraws its
recommendation  to the Cohoes  shareholders  that they approve the Hudson-Cohoes
Merger; or (b) authorizes,  recommends or proposes an agreement to enter into an
acquisition   transaction  with  anyone  other  than  Hudson;  or  (c)  provides
information  to or engages in  negotiations  with a third  party  relating  to a
possible acquisition transaction;  (v) any person (other than Hudson) files with
the SEC a  registration  statement or tender offer  materials  with respect to a
potential exchange offer than would constitute such an acquisition  transaction;
(vi) Cohoes  willfully  breaches  any  covenant or  obligation  contained in the
Hudson-Cohoes  Merger  Agreement  after an  overture is made by a third party to
Hudson or its shareholders to engage in a possible  acquisition  transaction and
such breach would entitle Hudson to terminate the Hudson-Cohoes Merger Agreement
and has not been cured within the time period  prescribed  in the  Hudson-Cohoes
Option  Agreement  or (vii) any person  (other than Hudson and without  Hudson's
consent) files an application or notice with any federal or state thrift or bank
regulatory or antitrust authority to engage in such an acquisition  transaction.
The  Offer,  and  Ambanc's  activities  in  connection  therewith  and  with the
Ambanc-Cohoes  Merger,  constitute an "Initial  Triggering  Event." The exchange
offer made by TrustCo,  and its  activities  and proposed  merger with Cohoes in
connection therewith, also constitute an "Initial Triggering Event."

         A "Subsequent  Triggering  Event"  means:  (i) the  acquisition  by any
person  (other  than  Hudson)  of  beneficial  ownership  of 25% or  more of the
outstanding  Cohoes  Common  Stock;  or  (ii)  the  occurrence  of  an  "Initial
Triggering Event" described in clause (i) of the immediately preceding paragraph
(but by  substituting  25% for 10%).  The  Offer,  and  Ambanc's  activities  in
connection  therewith  and with the  Ambanc-Cohoes  Merger,  will  constitute  a
"Subsequent Triggering Event."

         An "Exercise  Termination  Event" means any of the following:  (i) such
time as the Hudson-Cohoes  Merger becomes  effective;  (ii) a termination of the
Hudson-Cohoes Merger

                                      -25-





Agreement  in  accordance  with  its  term;  or (iii)  the  passage  of  certain
prescribed times after termination of the Hudson-Cohoes Merger Agreement if such
termination follows the occurrence of an "Initial Triggering Event."

         Because  there  has been an  Initial  Triggering  Event,  and since the
closing of the Offer and the  Ambanc-Cohoes  Merger will constitute a Subsequent
Triggering Event, Cohoes and Hudson will need to mutually agree to terminate the
Hudson-Cohoes Option Agreement to satisfy this condition.

STOCKHOLDER DISAPPROVAL OF THE HUDSON-COHOES MERGER

         The  Offer  is  conditioned,   among  other  things,  upon  the  Cohoes
shareholders not approving the Hudson-Cohoes Merger. If the Hudson-Cohoes Merger
Agreement is terminated, then this condition will be deemed satisfied.  However,
if the Hudson-Cohoes  Merger Agreement is not otherwise terminated and if Cohoes
holds a meeting of its shareholders to approve the  Hudson-Cohoes  Merger,  this
condition will be satisfied only if the requisite number of Cohoes  shareholders
either vote against such approval or abstain from voting.

         To be approved,  the Hudson-Cohoes  Merger must receive the affirmative
vote of a  majority  of the  outstanding  shares  of Cohoes  Common  Stock and a
majority of the outstanding shares of Hudson Common Stock.

         Ambanc  currently  holds  304,650  shares  of Cohoes  Common  Stock and
intends to vote such  shares  against  the  proposed  Hudson-Cohoes  Merger.  In
addition, Ambanc is soliciting proxies from Cohoes' shareholders to vote against
the proposed Hudson-Cohoes Merger. Ambanc does not know whether it will obtain a
sufficient  number of proxies  which,  together with the shares of Cohoes Common
Stock  already  owned by  Ambanc,  will be  sufficient  to defeat  the  proposed
Hudson-Cohoes Merger if the matter is ultimately put to Cohoes' shareholders for
approval.

         You should be aware that,  under the  Hudson-Cohoes  Merger  Agreement,
Cohoes is required to take all action which is  necessary  to properly  call and
convene  a  meeting  of  its   shareholders   to  consider  and  vote  upon  the
Hudson-Cohoes Merger and the Hudson-Cohoes Merger Agreement. The Cohoes Board is
obligated under the Hudson-Cohoes  Merger Agreement to recommend that the Cohoes
shareholders  approve the Hudson-Cohoes  Merger. The Cohoes Board has no ability
(without  otherwise  breaching the Hudson-Cohoes  Merger Agreement) to recommend
that the Cohoes  shareholders vote against the Hudson-Cohoes  Merger,  even if a
superior offer has been made.

DEFINITIVE AMBANC-COHOES MERGER AGREEMENT

         The Offer is  conditioned,  among other things,  upon Ambanc and Cohoes
entering into a definitive  agreement with respect to the Ambanc-Cohoes  Merger.
Ambanc considers the Offer and the  Ambanc-Cohoes  Merger to be related steps in
one  overall   transaction  whereby  Ambanc  acquires  all  of  the  issued  and
outstanding  shares  of Cohoes  Common  Stock.  Whether  this  condition  can be
satisfied  depends upon the willingness of the Cohoes Board to enter into such a
definitive agreement.

         13.  APPRAISAL  RIGHTS.  Ambanc is making the Offer in order to acquire
control of, and  ultimately the entire common equity  interest in,  Cohoes.  The
Offer is the first step in Ambanc's

                                      -26-





acquisition of Cohoes,  and is intended to facilitate the  acquisition of all of
the outstanding Shares.  Cohoes shareholders will not have appraisal rights as a
result of the consummation of this Offer. Ambanc intends, as soon as practicable
after completion of the Offer, to seek to merge Cohoes with and into Ambanc or a
wholly owned subsidiary.  The purpose of the Ambanc-Cohoes  Merger is to acquire
all of the Shares not  tendered  and  purchased  pursuant  to the offer.  In the
Ambanc-Cohoes  Merger,  each then  outstanding  Share (except for Shares held in
Cohoes's  treasury  and Shares that Ambanc  owns for its own  account)  would be
converted  into the right to receive  $16.50 net in cash.  Assuming  the minimum
tender  condition  and  certain  other  conditions  described  in Section 12 are
satisfied and Ambanc  completes the Offer,  Ambanc would have sufficient  voting
power to effect the  Ambanc-Cohoes  Merger under Section 251 of the DGCL without
the vote of any other Cohoes shareholder of Cohoes. Although shareholders do not
have appraisal rights as a result of the Offer,  Cohoes shareholders at the time
of the Ambanc-Cohoes Merger who do not vote in favor of the Ambanc-Cohoes Merger
will have the right  under the DGCL to  dissent  and demand  appraisal  of their
Shares in accordance with Section 262 of the DGCL. Under Section 262, dissenting
shareholders  who  comply  with  the  applicable  statutory  procedures  will be
entitled to receive a judicial  determination  of the fair value of their Shares
(exclusive  of  any  element  of  value  arising  from  the   accomplishment  or
expectation  of the  Ambanc-Cohoes  Merger) and to receive  payment of such fair
value in cash, together with a fair rate of interest,  if any. The Supreme Court
of the State of Delaware has construed Section 262 of the DGCL and held that the
"accomplishment or expectation" exclusion from the calculation of fair value set
forth in the  preceding  sentence is narrow and is designed to eliminate  use of
pro  forma  data  and  projections  of a  speculative  variety  relating  to the
completion of a merger.  The court held that it is appropriate to include in the
calculation of fair value any known elements of value,  including those elements
of value which exist on the date of the merger because of a majority  acquiror's
interim action in a two-step cash-out transaction.  Ambanc can make no assurance
as to the  methodology a court would use to determine  fair value or how a court
would  select  which of the  elements  of  value  are to be  included  in such a
determination.  Any such judicial  determination of the fair value of the Shares
could be based upon factors  other than,  or in addition to, the price per Share
to be paid in the  Ambanc-Cohoes  Merger or the market value of the Shares.  The
value so  determined  could be more or less than the value of the  consideration
per Share to be paid in the Ambanc-Cohoes Merger.

         14. SOURCE AND AMOUNT OF FUNDS.  Ambanc estimates that the total amount
of funds  required to purchase  the Shares in the Offer  (excluding  the 304,650
Shares  beneficially owned by Ambanc as of August 9, 2000) will be approximately
$125,525,482,  which will be funded from  Ambanc's  existing  assets,  including
securities  held as  available-for-sale,  and/or an  advance  or  dividend  from
Ambanc's wholly-owned subsidiary, Mohawk Community Bank, to Ambanc.

         As discussed in Section 17, the financial resources of Ambanc following
the  Ambanc-Cohoes  Merger  will be an  important  factor in  obtaining  federal
regulatory  approval of the  Ambanc-Cohoes  Merger.  Based on certain  financial
assumptions  regarding  Ambanc  and  Cohoes,  Ambanc  currently  believes  that,
following the Ambanc-Cohoes  Merger, it will have sufficient financial resources
and  regulatory  capital to  satisfy  regulatory  requirements.  There can be no
assurance, however, that such approvals will be received.


                                      -27-





         15. DIVIDENDS AND DISTRIBUTIONS. If, on or after the date of this Offer
to Purchase,  Cohoes should split, combine or otherwise change the Shares or its
capitalization,  or shall  disclose  that it has  taken any such  action,  then,
subject to the provisions of Section 12, Ambanc may, in its sole judgment,  make
such adjustments as it deems  appropriate to reflect such split,  combination or
other change in the purchase price and the other terms of the Offer  (including,
without  limitation,  the number and type of securities offered to be purchased,
the amounts payable therefor and the fees payable hereunder).

         If, on or after the date of this Offer,  Cohoes  should  declare or pay
any cash or stock  dividend  or other  distribution  on or issue any rights with
respect to the Shares,  payable or  distributable to shareholders of record on a
date before the transfer to the name of Ambanc or its nominee or  transferee  on
Cohoes' stock transfer  records of the Shares  accepted for payment  pursuant to
the Offer, then, subject to the provisions of Section 12, (i) the purchase price
per Share payable by Ambanc  pursuant to the Offer will be reduced by the amount
of any such cash  dividend or cash  distribution  and (ii) the whole of any such
non-cash  dividend,  distribution  or  right  will be  received  and held by the
tendering  shareholder  for the  account of Ambanc and shall be  required  to be
promptly  remitted  and  transferred  by  each  tendering   shareholder  to  the
Depositary for the account of Ambanc,  accompanied by appropriate  documentation
of transfer. Pending such remittance,  Ambanc will be entitled to all rights and
privileges as owner of any such non-cash dividend, distribution or right and may
withhold the entire  purchase price or deduct from the purchase price the amount
or value thereof, as determined by Ambanc in its sole discretion.

         16.  TREATMENT OF COHOES STOCK OPTIONS AND EMPLOYEE STOCK
                  OWNERSHIP PLAN.

         Cohoes  maintains an Employee  Stock  Ownership  Plan  ("ESOP") for its
employees  and a  Stock  Option  and  Incentive  Plan  for  directors,  advisory
directors and key employees  (collectively the "Option Plans"). Each outstanding
and fully vested  option  under the Option  Plans will be canceled  prior to the
consummation  date of the  Ambanc-Cohoes  Merger  and the  holder  thereof  will
receive  from  Ambanc,  in  payment  for such  option,  $16.50  in cash less the
exercise price of the stock option,  subject to appraisal rights available under
Delaware  law.  It is  anticipated  that the  ESOP  will be  terminated  and any
remaining  unallocated  ESOP shares  would be allocated  to  participants  after
repayment of the ESOP loan.

         17.  CERTAIN LEGAL AND REGULATORY MATTERS; APPROVALS.

GENERAL

         Except  as set forth  below,  based  upon an  examination  of  publicly
available  information filed by Cohoes with the SEC and other publicly available
information  with  respect  to  Cohoes,  Ambanc is not aware of any  license  or
regulatory  permit  which  appears to be material to the  business of Cohoes and
which is likely to be  adversely  affected  by  Ambanc's  acquisition  of Shares
pursuant to the Offer or,  except as disclosed  below,  of any approval or other
action by any state,  federal or foreign government or governmental  agency that
would be  required  prior to the  acquisition  of Shares  pursuant to the Offer.
Ambanc  presently  intends to take such actions with respect to any approvals as
will  enable it to acquire  the Shares as  expeditiously  as  possible.  In this
regard, Ambanc expressly

                                      -28-





reserves the right to challenge  the  validity and  applicability  of any state,
foreign or other statutes or regulations  purporting to require  approval of the
commencement or consummation of the Offer and the Ambanc-Cohoes Merger.

         There can be no assurance that any license,  permit,  approval or other
action, if needed, would be obtained and, if obtained, there can be no assurance
as to the date of any such  license,  permit or  approval  or the absence of any
litigation challenging any such license,  permit or approval.  Similarly,  there
can be no assurance that adverse  consequences  might not result to Cohoes or to
its business in the event of adverse  regulatory  action or  inaction.  Ambanc's
obligation  under the  Offer to accept  for  payment  and pay for any  Shares is
subject to  satisfaction of the Regulatory  Approval  Condition as well as other
conditions which could be triggered by an adverse  regulatory  development.  See
Section 12.

FEDERAL REGULATORY MATTERS

         The acquisition of Shares pursuant to the Offer (the "Acquisition") and
the consummation of the  Ambanc-Cohoes  Merger are subject to the prior approval
by the Office of Thrift  Supervision  (the "OTS")  pursuant to the Home  Owners'
Loan Act, as amended (the "HOLA") and the New York State Banking Department (the
"NYBD").

         In determining whether to approve the Acquisition and the Ambanc-Cohoes
Merger, the OTS and the NYBD will consider,  among other things: (i) competitive
factors;  (ii) the financial and  managerial  resources and future  prospects of
Ambanc and Cohoes;  (iii) the convenience  and needs of the community  served by
Ambanc and Cohoes;  and (iv)  supervisory  factors.  These factors are discussed
herein.

         In reviewing a transaction under the applicable statutes,  the OTS will
consider the  financial  and  managerial  resources of the  companies  and their
subsidiary  banks and the convenience and needs of the communities to be served.
Under the Community Reinvestment Act of 1977, as amended (the "C.R.A."), the OTS
must also take into  account  the  record of  performance  of each of Ambanc and
Cohoes in meeting the credit needs of the entire  community,  including  low and
moderate income  neighborhoods,  served by each company.  As of the date of this
Offer,  the  depository  institution  subsidiaries  of Ambanc  and  Cohoes  each
received   C.R.A.   ratings  of   satisfactory   in  their  most  recent  C.R.A.
examinations.

         The HOLA and the OTS regulations also require publication of notice of,
and the opportunity  for public comment on, the application  submitted by Ambanc
for approval of the  Acquisition  and authorize the OTS to hold a public hearing
in  connection  therewith  if the OTS  determines  that such a hearing  would be
appropriate.  Any such  hearing or  comments  provided  by third  parties  could
prolong the period during which the application is subject to review by the OTS.

         Following  approval by the OTS, the  Acquisition may not be consummated
until 30 days after OTS approval, during which time the United States Department
of Justice  ("D.O.J.") may challenge the  Acquisition  on antitrust  grounds and
seek the divestiture of certain assets and liabilities. With the approval of the
OTS and the D.O.J.,  the waiting  period may be reduced to no less than 15 days.
The  commencement  of  an  antitrust  action  by  the  D.O.J.   would  stay  the
effectiveness of OTS

                                      -29-





approval of the Acquisition  unless a court  specifically  orders otherwise.  In
reviewing  the  Acquisition,   the  D.O.J.  could  analyze  the  effect  of  the
Acquisition  on competition  differently  from the OTS and, thus, it is possible
that the D.O.J.  could reach a different  conclusion  than the OTS regarding the
competitive  effects of the Acquisition.  Failure of the D.O.J. to object to the
Acquisition  may not prevent the filing of antitrust  actions by private persons
or state attorneys general.

         In  general,  the OTS and the  D.O.J.  will  examine  the impact of the
Acquisition on competition in various product and geographic markets,  including
competition for deposits and loans,  especially loans to small and middle market
businesses.

ANTICIPATED APPROVALS

         While Ambanc expects to receive the approvals from the OTS and the NYBD
and other  relevant  agencies  required to consummate  the  Acquisition,  Ambanc
cannot  predict  when,  or give  any  assurance  that,  such  approvals  will be
received.  It is anticipated that, in any event, the approval process (including
the  mandatory  waiting  periods)  could  take  four  months  from  the date the
applications  are  filed.  Any such  approvals  may be issued  subject  to prior
compliance with material  conditions,  which conditions might be unacceptable to
Ambanc  and would  entitle  Ambanc to  terminate  the Offer.  In any event,  the
receipt of all such  regulatory  approvals  and the  expiration  of all  waiting
periods is a non-waivable condition to the Offer.

         18. FEES AND EXPENSES.  D.F. King & Co.,  Inc.  ("D.F.  King") has been
retained by Ambanc to act as its Information Agent in connection with the Offer.
D.F. King may contact holders of Shares by mail, telephone, facsimile, telegraph
and  personal  interviews  and may request  brokers,  dealers and other  nominee
shareholders to forward materials  relating to the Offer to beneficial owners of
Shares. Ambanc will pay D.F. King reasonable and customary  compensation for its
services in connection  with the Offer,  plus  reimbursement  for  out-of-pocket
expenses,  and will indemnify D.F. King against certain liabilities and expenses
in connection  therewith,  including  liabilities  under the federal  securities
laws.

         In addition,  D.F. King been retained as the  Depositary for the Offer.
D.F. King has not been retained to make  solicitations or recommendations in its
role as Depositary. D.F. King will receive reasonable and customary compensation
for its  services as  Depositary,  will be  reimbursed  for  certain  reasonable
out-of- pocket expenses and will be indemnified  against certain liabilities and
expenses  in  connection  therewith,  including  certain  liabilities  under the
federal securities laws.

         Ambanc will not pay any fees or  commissions to any broker or dealer or
other  person  (other  than  D.F.  King in its role as  Information  Agent)  for
soliciting tenders of Shares pursuant to the Offer. Brokers, dealers, commercial
banks and trust companies will be reimbursed by Ambanc for customary mailing and
handling  expenses  incurred by them in forwarding  offering  materials to their
customers.

         19.  MISCELLANEOUS.  The Offer is being made to all  holders of Shares.
Ambanc is not aware of any state where the making of the Offer is  prohibited by
administrative or judicial action pursuant to a state statute. If Ambanc becomes
aware of any state where the making of the Offer is

                                      -30-





so  prohibited,  Ambanc  will make a good faith  effort to comply  with any such
statute or seek to have such statute  declared  inapplicable  to the Offer.  If,
after such good faith effort,  Ambanc cannot comply with any applicable statute,
the Offer will not be made to (nor will  tenders be  accepted  from or on behalf
of) the holders of Shares in such state.  In any  jurisdiction  the  securities,
blue  sky or other  laws of which  require  the  Offer to be made by a  licensed
broker or  dealer,  the Offer  shall be deemed to be made on behalf of Ambanc by
one or more  registered  brokers  or  dealers  licensed  under  the laws of such
jurisdiction.

         Although  neither  Ambanc nor the  Information  Agent has any knowledge
that would indicate that any of the information  contained  herein that has been
derived  from the Cohoes'  Proxy  Statement  is untrue,  neither  Ambanc nor the
Information Agent takes  responsibility  for the accuracy or completeness of the
information  derived  from the Cohoes'  Proxy  Statement,  or for any failure by
Cohoes to disclose events which may have occurred or may affect the significance
or  accuracy  of any such  information  but which are  unknown  to Ambanc or the
Information Agent.

         Ambanc has not  authorized  anyone to give any  information or make any
representation  about this Offer that is different from, or in addition to, that
contained in this Offer to Purchase or in the Letter of Transmittal.  Therefore,
if anyone does give you information of this sort, you should not rely on it.

         The  information  contained in this Offer to Purchase speaks only as of
the date of this document  unless the  information  specifically  indicates that
another date applies.

         Ambanc has filed with the SEC a Statement on Schedule  TO,  pursuant to
Rule 14d-3 under the Exchange Act,  furnishing  certain  additional  information
with respect to the Offer, and may file amendments  thereto.  Such Statement and
any amendments thereto,  including  exhibits,  may be examined and copies may be
obtained from the principal office of the SEC in Washington,  D.C. in the manner
set forth in Section 9.


                                           AMBANC HOLDING CO., INC.

August 9, 2000

                                      -31-





                                   SCHEDULE I

                   DIRECTORS AND EXECUTIVE OFFICERS OF AMBANC

         The  following  information  sets forth the name and present  principal
occupation  and  five-year  employment  history  of  each of the  directors  and
executive officers of Ambanc.  Each of the directors and executive officers is a
citizen of the United States.  Unless  otherwise  noted, the business address of
each of the  directors  and  executive  officers  of  Ambanc  named  below is 11
Division Street, Amsterdam, New York 12010.

DIRECTORS

         John J. Daly.  Mr. Daly is the Vice President and was a former owner of
Alpin  Haus,  Inc.,  a retail  company  located in  Amsterdam,  New York,  which
specializes in the sale of recreational  vehicles.  Mr. Daly has been associated
with Alpin Haus since 1963.

         Marvin R. LeRoy, Jr. Mr. LeRoy is Executive Director of the Alzheimer's
Association,  Northeastern  New York. He served as  Town/County  Supervisor  for
Saratoga County  representing the Town of Clifton Park, New York from 1992 until
he  retired  in 1999.  Previously,  he has  served as  Development  Officer  for
Skidmore College in Saratoga  Springs,  Executive  Director of the Kenwood Child
Development  Center in Albany,  Executive  Director of the Amsterdam City Center
(YMCA) and served in numerous  capacities for Montgomery  County,  New York. Mr.
LeRoy is also  active in the  community,  having  served  on over 25 boards  and
councils  throughout the Capital  District,  and has been named to "Who's Who in
America" since 1995.

         Lawrence  B.  Seidman.  Mr.  Seidman has been a director of the Company
since March 2000. Since March 1999, Mr. Seidman has been the President,  General
Counsel and a Director of Menlo  Acquisition  Corporation.  Mr.  Seidman is also
Manager of Seidman & Associates,  L.L.C.,  President of Veteri Place Corp.,  the
sole General Partner of Seidman Investment  Partnership,  LP, Seidman Investment
Partnership II, LP, Manager, of Federal Holdings, L.L.C. and business consultant
to  certain  partnerships  and  individuals,  including,  but  not  limited  to,
Kerrimatt, LP.

         Mr.  Seidman  and  certain   affiliates  (the  "Seidman   Group")  were
defendants  in a  civil  proceeding  filed  in  federal  district  court  by IBS
Financial Corp. in November 1996 in connection  with a proxy contest,  state law
matters and disclosure required under the federal securities laws.  Following an
appeal of the district court  decision,  the Third Circuit Court of Appeals,  in
February 1998,  reversed in part and remanded in part the lower court  decision.
The Court of Appeals  determined  that a Schedule 13D filed by the Seidman Group
had failed to adequately  disclose  information  about persons in control of the
Seidman Group.  Pending the remand, an amended Schedule 13D was filed to provide
additional  disclosures  about  members of the Seidman  Group.  Thereafter,  the
federal  district  court  entered a Judgment  After  Remand  which  directed the
inclusion of these disclosures in the Schedule 13D.

         In  November  1995,  the  acting  director  of  the  Office  of  Thrift
Supervision  ("OTS") issued a cease and desist order against Mr. Seidman ("C&D")
after finding that Mr. Seidman recklessly

                                      -32-





engaged in unsafe and unsound  practices in the business of a federally  insured
institution  unrelated to IBS Financial Corp. The C&D actions complained of were
Mr. Seidman's alleged  obstruction of an OTS investigation.  The C&D ordered him
to cease and desist from (i) any attempts to hinder the OTS in the  discharge of
its regulatory responsibilities, including the conduct of any OTS examination or
investigation;  and (ii) any attempts to induce any person to withhold  material
information   from  the  OTS  related  to  the  performance  of  its  regulatory
responsibilities. The C&D also provides that, for a period of no less than three
(3) years,  if Mr.  Seidman  becomes  an  institution-  affiliated  party of any
insured  depository  institution  subject to the jurisdiction of the OTS, to the
extent  that his  responsibilities  include  the  preparation  or  review of any
reports,  documents, or other information that would be submitted or reviewed by
the OTS in the  discharge of its  regulatory  functions,  then all such reports,
documents, and other information shall, prior to submission to, or review by the
OTS, be  independently  reviewed by the Board of Directors  or a duly  appointed
committee  of the Board to ensure that all material  information  and facts have
been fully and adequately  disclosed.  In addition, a civil money penalty in the
amount of $20,812 was assessed.

         Dr.  Ronald S. Tecler.  Dr. Tecler became a director of the Company and
the Bank following the merger with AFSALA Bancorp, Inc. ("AFSALA").  The Company
acquired  AFSALA in November  1998.  Prior to the merger,  Dr. Tecler had been a
director of  Amsterdam  Federal  Bank since 1994 and a director of AFSALA  since
1996.  Dr.  Tecler is the majority  stockholder  of a  professional  corporation
engaged in the practice of dentistry in  Amsterdam,  New York and has  practiced
dentistry  since 1965.  Dr. Tecler is the Chairman of the Board of the Amsterdam
Urban Renewal Agency,  President and a board member of Industries for Amsterdam,
Inc.,  a board  member of the Twin  Rivers Boy Scouts  Council,  a member of the
Council on peer Review and Quality Assurance New York State Dental  Association,
and is  active in the  Amsterdam  Rotary  Club and the St.  Mary's  Hospital  of
Amsterdam Foundation.

         James J.  Bettini,  Sr. Mr.  Bettini is  Executive  Vice  President  of
Operations of Farm Family Holding Co., parent company of Farm Family  Insurance,
where he has been  employed  since  1979.  He is past  president  of the  Albany
Association of Chartered Property and Casualty  Underwriters,  and served on the
Amsterdam City Zoning Board of Appeals and the Amsterdam Golf Commission.

         Seymour  Holtzman.  Since 1990, Mr. Holtzman has served as Chairman and
Chief Executive Officer of each of the following companies:  Jewelcor Management
&  Consulting,   Inc.,  a  management  and  consulting  firm  in   Wilkes-Barre,
Pennsylvania;  C.D. Peacock, Inc., a jewelry company based in Chicago, Illinois;
Central European Capital  Investors,  Inc., an investment  company  operating in
eastern  Europe;  and S.A.  Peck & Co., a mail order  jewelry  company  based in
Chicago,  Illinois. Mr. Holtzman has over 35 years of management experience, and
has been an  investor  in the  banking  and  thrift  industries  since  1972.  A
philanthropist,  Mr. Holtzman has been honored as  "Humanitarian of the Year" by
the Cardinal  Cushing School and Training  Center in Boston,  Massachusetts  and
"Man of the Year" by the B'nai B'rith Youth Services. Mr. Holtzman is a director
of  Designs,  Inc.  and  the  Chairman  of the  Board  of  Directors  of  Little
Switzerland, Inc.

         Allan R.  Lyons.  Mr.  Lyons is the  owner  of 21st  Century  Strategic
Investment  Planning,  a company that Mr. Lyons began  operating  following  his
retirement  in December  1999 as the  Chairman of the Board and Chief  Executive
Officer of Piaker & Lyons, Vestal, New York. Mr.

                                      -33-





Lyons had served as Chairman of the firm's personal financial planning committee
and executive committee. Mr. Lyons had worked for Piaker & Lyons since 1964, and
had  become  an  executive  of the firm in 1968.  Mr.  Lyons is a member  of the
American  Institute  of  CPAs,  the New York  State  Society  of  CPAs,  and the
International Association for Financial Planning. He is on the board of advisors
of the  Binghamton  University  School of Management,  is a corporate  member of
United  Health  Services,  and serves on the  endowment  committee of the United
Jewish  Appeal of Broome  County.  Mr. Lyons is a director of  Officeland  Inc.,
Retail Entertainment Group, Inc. and Franklin Credit Management Corporation.

         Charles E. Wright.  Since 1976,  Mr. Wright has been  President of W.W.
Custom Clad, Inc., Canajoharie, New York, a metal finishing company specializing
in powder  coatings.  Prior to that time, Mr. Wright was a sales  representative
for the Industrial  Coatings  Division of Schenectady  International  in the New
York and New England regions and a teacher and vocational  guidance counselor at
Canajoharie  High School.  Mr. Wright is a trustee of the Arkell Hall Foundation
in Canajoharie and the Foundation of St. Mary's Hospital in Amsterdam.

         William L. Petrosino.  Mr. Petrosino is a longtime local businessman in
the wholesale beverage industry,  operating beverage companies in the Amsterdam,
South Glens Falls, Queensburg, and Schenectady, New York areas. He has served as
a director of the Company  since May 1999.  He also owns and operates  warehouse
rental space in Montgomery and Fulton  Counties,  as well as residential  rental
properties  in the  Amsterdam  area.  Mr.  Petrosino is a member of the Board of
Directors of Amsterdam Memorial  Hospital.  He is a former Chairman of the Board
of Directors of the Fulton-Montgomery-Schoharie Private Industry Council, and of
the  Workforce  Development  Board.  Mr.  Petrosino  also  previously  served as
Chairman of the Amsterdam  City  Planning  Board and as a member of the board of
directors of the Montgomery County Economic Development Zone.

         Lauren T.  Barnett.  Mr.  Barnett  became  Chairman of the Board of the
Company in 1998.  Mr. Barnett  served as Interim  President and Chief  Executive
Officer of the  Company and the Bank from July 1998 until the  Company's  merger
with AFSALA Bancorp,  Inc.  ("AFSALA") in November 1998. Since 1957, Mr. Barnett
has been the President of Barnett Agency,  Inc., an insurance  agency located in
Amsterdam, New York. Mr. Barnett is also a licensed real estate broker.

         Dr. Daniel J. Greco. Dr. Greco became a director of the Company and the
Bank following the merger with AFSALA. Prior to the merger, Dr. Greco had been a
director of Amsterdam  Federal Bank, a subsidiary of AFSALA,  since 1980,  and a
director of AFSALA  since its  formation in 1996.  Dr. Greco is a former  school
teacher and the retired superintendent of the Greater Amsterdam School District.
Dr. Greco serves on the Board of Directors of the  Amsterdam  Memorial  Hospital
and Industries  for  Amsterdam,  Inc. and is active in the Rotary Club, the Elks
Club, and the Boy Scouts of America.

         John M. Lisicki.  Mr.  Lisicki  became  President  and Chief  Executive
Officer of the Company and the Bank upon  consummation of the merger with AFSALA
in November 1998.  Prior to the merger,  Mr. Lisicki had served as President and
Chief  Executive  Officer of Amsterdam  Federal Bank since 1983 and as President
and Chief Executive Officer of AFSALA since 1996. Mr. Lisicki is a

                                      -34-





current  member,  Treasurer  and  past  Chairman  of the  Board of  Trustees  of
Amsterdam  Memorial  Hospital,  a member of the Board and  former  President  of
Industries for Amsterdam, a member of the Board and former Vice President of the
Amsterdam  Free Library,  a member of the Board of the Sarah J. Sanford Home for
Elderly Women,  former  President of the Foundation of Liberty  Enterprises,  as
well as a member of its Board of Directors, and a former board member of Hospice
Foundation,  the  Amsterdam  City Center and the  Advisory  Board of St.  Mary's
Hospital.

         Charles S. Pedersen. Since 1985, Mr. Pedersen has been a manufacturers'
representative  for  various   international   fiberglass  and  related  product
companies. Mr. Pedersen's office is located in Amsterdam, New York.

         John A. Tesiero,  Jr. Mr.  Tesiero became a director of the Company and
the Bank following the merger with AFSALA.  Prior to the Merger, Mr. Tesiero had
served as a director of  Amsterdam  Federal  Bank since 1994 and of AFSALA since
1996. Mr. Tesiero is the sole owner and President and Chief Executive Officer of
Cranesville  Block Co., Inc., a construction  supply business  selling ready mix
concrete,  concrete block,  sand,  gravel and stone,  located in Amsterdam,  New
York.

EXECUTIVE OFFICERS

         Benjamin  Ziskin has been the Senior Vice  President of the Company and
the Bank since  November  1998.  Mr.  Ziskin  served as  Treasurer  of Amsterdam
Federal  Bank from 1985 to 1993 and was  appointed  Vice  President of Amsterdam
Federal Bank in 1989 and of AFSALA upon its formation in 1996.

         James J. Alescio is Senior Vice President,  Chief Financial Officer and
the  Treasurer  of the  Company  and the  Bank,  positions  he has held with the
Company  since  November  1998.  Mr.  Alescio  served as Assistant  Treasurer of
Amsterdam  Federal Bank from 1984 to 1987 and was appointed  Treasurer and Chief
Financial  Officer  of  Amsterdam  Federal  Bank in 1993 and of AFSALA  upon its
formation.

         Thomas Nachod is Senior Vice President of the Company and the Bank. Mr.
Nachod  joined the Company in December  1998.  Prior to joining the Company,  he
held the position of Senior Vice  President at ALBANK.  In addition,  Mr. Nachod
previously worked in a variety of rolls at KeyBank,  as well as having served as
Chief Executive Officer of two banks,  Connecticut  Community Bank in Greenwich,
Connecticut and Fidelity Bank of Scottsdale, Arizona.

         Robert Kelly is Vice  President,  Secretary and General  Counsel to the
Company,  positions he has held with the Company since its incorporation in June
1995.  Mr. Kelly has been Vice  President and General  Counsel to the Bank since
July 1994.  In January 1995 he was  appointed  Secretary  of the Bank.  Prior to
joining the Bank in 1994, Mr. Kelly was self-employed in the general practice of
law in the State of New York.





                                      -35-



                                   SCHEDULE II


                             SHARES OWNED BY AMBANC
                AND BY DIRECTORS AND EXECUTIVE OFFICERS OF AMBANC
                              AND THEIR ASSOCIATES

         As of August 9, 2000, Ambanc beneficially owned 304,650 Shares, or 3.8%
of the outstanding  Shares.1  Director Allan R. Lyons  beneficially  owned 7,600
Shares, or approximately 0.1%; Director William L. Petrosino  beneficially owned
4,000 Shares,  or 0.05%;  and Senior Vice President  Thomas Nachod  beneficially
owned 1,000  Shares,  or 0.01%.  No other  director or executive  officer and no
associate of any director or executive officer beneficially owns any Shares.


- -----------
1 Based on 7,912,255 Shares  outstanding at June 22, 2000, as disclosed  Cohoes'
Proxy  Statement for its Special  Meeting of  Shareholders to be held August 17,
2000 for the purpose of  considering  the Hudson-  Cohoes  Merger (the  "Cohoes'
Proxy Statement") as filed with the SEC on July 18, 2000.



            TRANSACTIONS IN SHARES DURING THE PAST 60 DAYS BY AMBANC
                AND BY DIRECTORS AND EXECUTIVE OFFICERS OF AMBANC


         Information  regarding  transactions  in the Shares  during the past 60
days is  included  in the  Schedule TO filed with the SEC by Ambanc on August 9,
2000 under Item 8 "Interest in  Securities of the Subject  Company,"  which sets
forth  information  regarding all transactions in the Shares effected during the
past 60 days,  including  (1) the date of each  transaction,  (2) the  number of
Shares  involved in each  transaction,  and (3) the price paid per Share in each
transaction,  exclusive of commissions.  All of the  transactions  were effected
through a registered broker.

         Except as disclosed under Item 8 "Interest in Securities of the Subject
Company"  of the  Schedule  TO filed by Ambanc  with the SEC on August 9,  2000,
there were no transactions effected in the Shares during the past 60 days.




                                      -36-





                                  SCHEDULE III
          SECTION 203 OF THE DELAWARE GENERAL BUSINESS CORPORATION LAW

203      BUSINESS COMBINATIONS WITH INTERESTED STOCKHOLDERS.

(a)      Notwithstanding  any other  provisions of this  chapter,  a corporation
         shall  not  engage  in any  business  combination  with any  interested
         stockholder  for a  period  of 3 years  following  the time  that  such
         stockholder became an interested stockholder, unless:

         (1)  prior to such  time  the  board of  directors  of the  corporation
approved either the business  combination or the  transaction  which resulted in
the stockholder becoming an interested stockholder, or

         (2)  upon  consummation  of  the  transaction  which  resulted  in  the
stockholder becoming an interested stockholder, the interested stockholder owned
at least 85% of the voting stock of the corporation  outstanding at the time the
transaction  commenced,  excluding  for  purposes of  determining  the number of
shares  outstanding those shares owned (i) by persons who are directors and also
officers and (ii) employee  stock plans in which  employee  participants  do not
have the right to determine  confidentially  whether  shares held subject to the
plan will be tendered in a tender or exchange offer, or

         (3) at or subsequent to such time the business  combination is approved
by the board of  directors  and  authorized  at an annual or special  meeting of
stockholders,  and  not by  written  consent,  by  the  affirmative  vote  of at
least66-2/3%  of  the  outstanding  voting  stock  which  is  not  owned  by the
interested stockholder.

(b)      The restrictions contained in this section shall not apply if:

         (1) the corporation's  original certificate of incorporation contains a
provision expressly electing not to be governed by this section;

         (2) the  corporation,  by action of its board of  directors,  adopts an
amendment to its bylaws  within 90 days of the  effective  date of this section,
expressly electing not to be governed by this section, which amendment shall not
be further amended by the board of directors.

         (3) the corporation, by action of its stockholders, adopts an amendment
to its  certificate  of  incorporation  or bylaws  expressly  electing not to be
governed by this section,  provided that, in addition to any other vote required
by law, such  amendment to the  certificate of  incorporation  or bylaws must be
approved by the  affirmative  vote of a majority of the shares entitled to vote.
An amendment  adopted pursuant to this paragraph shall be effective  immediately
in the case of a corporation that both (i) has never had a class of voting stock
that  falls  within  any  of  the  three   categories   set  out  in  subsection
(b)(4)hereof,  and  (ii)  has  not  elected  by  a  provision  in  its  original
certificate  of  incorporation  or any amendment  thereto to be governed by this
section.  In all other cases,  an amendment  adopted  pursuant to this paragraph
shall not be effective  until 12 months after the adoption of such amendment and
shall not apply to any business combination between such

                                      -37-





corporation  and  any  person  who  became  an  interested  stockholder  of such
corporation on or prior to such adoption.  A bylaw amendment adopted pursuant to
this paragraph shall not be further amended by the board of directors;

         (4) the  corporation  does not have a class of voting stock that is (i)
listed on a national securities  exchange,  (ii) authorized for quotation on The
Nasdaq  Stock  Market or (iii) held of record by more than  2,000  stockholders,
unless any of the foregoing  results from action taken,  directly or indirectly,
by an interested  stockholder or from a transaction in which a person becomes an
interested stockholder;

         (5) a stockholder becomes an interested  stockholder  inadvertently and
(i) as soon as practicable  divests itself of ownership of sufficient  shares so
that the stockholder ceases to be an interested  stockholder and (ii) would not,
at any time within the 3 year period immediately prior to a business combination
between  the  corporation  and  such   stockholder,   have  been  an  interested
stockholder but for the inadvertent acquisition of ownership;

         (6) the business  combination is proposed prior to the  consummation or
abandonment of and subsequent to the earlier of the public  announcement  or the
notice required hereunder of a proposed transaction which (i) constitutes one of
the  transactions  described in the second sentence of this  paragraph;  (ii) is
with or by a person  who  either was not an  interested  stockholder  during the
previous 3 years or who became an  interested  stockholder  with the approval of
the corporation's board of directors or during the period described in paragraph
(7) of this  subsection  (b); and (iii) is approved or not opposed by a majority
of the members of the board of directors then in office (but not less than 1)who
were directors prior to any person becoming an interested stockholder during the
previous 3 years or were  recommended  for  election or elected to succeed  such
directors by a majority of such directors. The proposed transactions referred to
in the preceding  sentence are limited to (x) a merger or  consolidation  of the
corporation (except for a merger in respect of which, pursuant to Section 251(f)
of the chapter, no vote of the stockholders of the corporation is required); (y)
a sale, lease, exchange, mortgage, pledge, transfer or other disposition (in one
transaction  or a series of  transactions),  whether as part of a dissolution or
otherwise,   of  assets  of  the  corporation  or  of  any  direct  or  indirect
majority-owned  subsidiary  of the  corporation  (other  than to any  direct  or
indirect  wholly-owned  subsidiary  or to the  corporation)  having an aggregate
market value equal to 50% or more of either that  aggregate  market value of all
of the  assets of the  corporation  determined  on a  consolidated  basis or the
aggregate market value of all the outstanding stock of the corporation; or (z) a
proposed  tender or  exchange  offer for 50% or more of the  outstanding  voting
stock of the  corporation.  The  corporation  shall  give not less  then 20 days
notice to all interested  stockholders  prior to the  consummation of any of the
transactions  described  in clauses  (x) or (y) of the second  sentence  of this
paragraph; or

         (7) The business  combination  is with an  interested  stockholder  who
became an interested  stockholder at a time when the  restrictions  contained in
this section did not apply by reason of any  paragraphs  (1) through (4) of this
subsection (b), provided,  however,  that this paragraph (7) shall not apply if,
at the time such interested  stockholder became an interested  stockholder,  the
corporation's  certificate of incorporation  contained a provision authorized by
the last sentence of this subsection (b).

                                      -38-





         Notwithstanding  paragraphs (1), (2), (3) and (4) of this subsection, a
corporation   may  elect  by  a  provision  of  its  original   certificate   of
incorporation or any amendment thereto to be governed by this section;  provided
that any such amendment to the certificate of  incorporation  shall not apply to
restrict  a business  combination  between  the  corporation  and an  interested
stockholder of the corporation if the interested  stockholder  became such prior
to the effective date of the amendment.

         (c) As used in this section only, the term:

         (1) "affiliate" means a person that directly, or indirectly through one
or more  intermediaries,  controls,  or is  controlled  by,  or is under  common
control with, another person.

         (2) "associate,"  when used to indicate a relationship with any person,
means (i) any  corporation,  partnership,  unincorporated  association  or other
entity of which such person is a director, officer or partner or is, directly or
indirectly,  the  owner of 20% or more of any class of  voting  stock,  (ii) any
trust or  other  estate  in  which  such  person  has at least a 20%  beneficial
interest or as to which such person serves as trustee or in a similar  fiduciary
capacity,  and (iii) any relative or spouse of such  person,  or any relative of
such spouse, who has the same residence as such person.

         (3) "business  combination,"  when used in reference to any corporation
and any interested stockholder of such corporation, means:

          (i)  any merger or  consolidation  of the corporation or any direct or
               indirect  majority - owned subsidiary of the corporation with (A)
               the interested  stockholder,  or (B) with any other  corporation,
               partnership,  unincorporated  association  or other entity if the
               merger or consolidation  is caused by the interested  stockholder
               and as a result of such merger or consolidation subsection (a) of
               this section is not applicable to the surviving entity;

          (ii) any sale, lease, exchange,  mortgage,  pledge,  transfer or other
               disposition  (in one  transaction  or a series of  transactions),
               except  proportionately as a stockholder of such corporation,  to
               or  with  the  interested  stockholder,  whether  as  part  of  a
               dissolution or otherwise,  of assets of the corporation or of any
               direct or indirect  majority-owned  subsidiary of the corporation
               which assets have an aggregate  market value equal to 10% or more
               of either  the  aggregate  market  value of all the assets of the
               corporation  determined on a consolidated  basis or the aggregate
               market value of all the outstanding stock of the corporation;

          (iii)any transaction  which results in the issuance or transfer by the
               corporation   or  by  any  direct  or   indirect   majority-owned
               subsidiary of the  corporation of any stock of the corporation or
               of such  subsidiary  to the  interested  stockholder,  except (A)
               pursuant to the  exercise,  exchange or  conversion of securities
               exercisable  for,  exchangeable  for or convertible into stock of
               such  corporation or any such  subsidiary  which  securities were
               outstanding  prior to the time  that the  interested  stockholder
               became such,  (B) pursuant to a merger  under  Section  251(g) of
               this title;  (C)pursuant  to a dividend or  distribution  paid or
               made, or the exercise, exchange or conversion of

                                      -39-





               securities  exercisable for, exchangeable for or convertible into
               stock of such  corporation or any such subsidiary  which security
               is  distributed,  pro rata to all holders of a class or series of
               stock of such  corporation  subsequent to the time the interested
               stockholder became such,  (D)pursuant to an exchange offer by the
               corporation  to  purchase  stock  made on the  same  terms to all
               holders of said stock,  or (E) any  issuance or transfer of stock
               by the  corporation,  provided  however,  that in no  case  under
               (C)-(E)  above  shall  there  be an  increase  in the  interested
               stockholder's  proportionate  share of the  stock of any class or
               series  of  the  corporation  or  of  the  voting  stock  of  the
               corporation;

          (iv) any  transaction   involving  the  corporation  or  any  director
               indirect  majority -owned subsidiary of the corporation which has
               the  effect,   directly  or   indirectly,   of   increasing   the
               proportionate  share of the  stock of any  class  or  series,  or
               securities  convertible into the stock of any class or series, of
               the corporation or of any such  subsidiary  which is owned by the
               interested stockholder,  except as a result of immaterial changes
               due  to  fractional  share  adjustments  or as a  result  of  any
               purchase  or  redemption  of any  shares  of  stock  not  caused,
               directly or indirectly, by the interested stockholder; or

          (v)  any  receipt  by  the  interested  stockholder  of  the  benefit,
               directly or indirectly  (except  proportionately as a stockholder
               of such corporation) of any loans, advances, guarantees, pledges,
               or other financial benefits (other than those expressly permitted
               in  subparagraphs  (i)-(iv)  above)provided  by  or  through  the
               corporation or any direct or indirect majority owned subsidiary.

         (4)  "control,"  including  the  term  "controlling,"  "controlled  by"
and"under common control with," means the possession, directly or indirectly, of
the power to direct or cause the direction of the  management  and policies of a
person,  whether  through  the  ownership  of  voting  stock,  by  contract,  or
otherwise.  A person who is the owner of 20% or more of the  outstanding  voting
stock  of any  corporation,  partnership,  unincorporated  association  or other
entity shall be presumed to have control of such entity, in the absence of proof
by a  preponderance  of  the  evidence  to  the  contrary.  Notwithstanding  the
foregoing,  a  presumption  of control  shall not apply where such person  holds
voting stock, in good faith and not for purpose of  circumventing  this section,
as an agent, bank, broker, nominee,  custodian or trustee for one or more owners
who do not individually or as a group have control of such entity.

         (5)  "interested   stockholder"   means  any  person  (other  than  the
corporation  and  any  direct  or  indirect  majority-owned  subsidiary  of  the
corporation)  that  (i) is the  owner of 15% or more of the  outstanding  voting
stock  of  the  corporation,  or  (ii)  is an  affiliate  or  associate  of  the
corporation and was the owner of 15% or more of the outstanding  voting stock of
the  corporation at any time within the 3-year period  immediately  prior to the
date on which it is sought to be determined whether such person is an interested
stockholder;  and  the  affiliates  and  associates  of such  person;  provided,
however, that the term "interested stockholder" shall not include (x) any person
who (A) owned shares in excess of the 15%  limitation set forth herein as of, or
acquired such shares  pursuant to a tender offer  commenced  prior to,  December
23,1987, or pursuant to an exchange offer announced

                                      -40-





prior to the aforesaid date and commenced  within 90 days  thereafter and either
(I)  continued to own shares in excess of such 15%  limitation or would have but
for  action by the  corporation  or (II) is an  affiliate  or  associate  of the
corporation  and so continued (or so would have  continued but for action by the
corporation)  to be the owner of 15%or more of the  outstanding  voting stock of
the  corporation at any time within the 3-year period  immediately  prior to the
date on  which  it is  sought  to be  determined  whether  such a  person  is an
interested  stockholder  or (B) acquired said shares from a person  described in
(A) above by gift, inheritance or in a transaction in which no consideration was
exchanged;  or (y) any  person  whose  ownership  of shares in excess of the 15%
limitation  set  forth  herein  is the  result  of  action  taken  solely by the
corporation  provided  that such person shall be an  interested  stockholder  if
thereafter  such  person  acquires  additional  shares  of  voting  stock of the
corporation, except as a result of further corporate action not caused, directly
or indirectly,  by such person. For the purpose of determining  whether a person
is an interested  stockholder,  the voting stock of the corporation deemed to be
outstanding  shall  include  stock  deemed  to be  owned by the  person  through
application of paragraph (8) of this  subsection but shall not include any other
unissued  stock  of such  corporation  which  may be  issuable  pursuant  to any
agreement,  arrangement or understanding, or upon exercise of conversion rights,
warrants or options, or otherwise.

         (6)   "person"   means  any   individual,   corporation,   partnership,
unincorporated association or other entity.

         (7) "Stock" means, with respect to any corporation,  capital stock and,
with respect to any other entity, any equity interest.

         (8) "Voting stock" means, with respect to any corporation, stock of any
class or series  entitled to vote  generally in the  election of directors  and,
with  respect  to any entity  that is not a  corporation,  any  equity  interest
entitled to vote generally in the election of the governing body of such entity.

         (9)  "owner"  including  the  terms  "own" and  "owned"  when used with
respect to any stock means a person that  individually or with or through any of
its affiliates or associates:

          (i)  beneficially owns such stock, directly or indirectly; or

          (ii) has (A) the right to acquire  such stock  (whether  such right is
               exercisable  immediately  or only  after  the  passage  of  time)
               pursuant to any agreement,  arrangement or understanding, or upon
               the exercise of conversion rights,  exchange rights,  warrants or
               options, or otherwise; provided, however, that a person shall not
               be deemed  the owner of stock  tendered  pursuant  to a tender or
               exchange  offer  made by  such  person  or any of  such  person's
               affiliates  or associates  until such tendered  stock is accepted
               for  purchase  or  exchange;  or (B) the right to vote such stock
               pursuant  to  any  agreement,   arrangement   or   understanding;
               provided, however, that a person shall not be deemed the owner of
               any stock  because of such  person's  right to vote such stock if
               the agreement,  arrangement or  understanding  to vote such stock
               arises solely from a revocable proxy or consent given in response
               to a proxy or consent solicitation made to 10or more persons; or

                                      -41-





          (iii)has any agreement,  arrangement or understanding  for the purpose
               of  acquiring,  holding,  voting  (except  voting  pursuant  to a
               revocable  proxy or  consent as  described  in item (B) of clause
               (ii) of this  paragraph),  or  disposing  of such  stock with any
               other  person that  beneficially  owns,  or whose  affiliates  or
               associates beneficially own, directly or indirectly, such stock.

          (d)  No provision of a  certificate  of  incorporation  or bylaw shall
               require, for any vote of stockholders  required by this section a
               greater vote of stockholders than that specified in this section.

          (e)  The  Court  of   Chancery  is  hereby   vested   with   exclusive
               jurisdiction  to hear and  determine  all matters with respect to
               this section. (Last amended by Ch. 79, L. `95, eff. 7-1-95.)





                                      -42-




                        The Depositary for the Offer is:
                              D.F. King & Co., Inc.
                                Telephone Number:
                                 (781) 799-4433


By Mail:                  By Facsimile:           By Hand or Overnight Delivery
- --------                  -------------           -----------------------------
D.F. King & Co., Inc.     D.F. King & Co., Inc.   D.F. King & Co., Inc.
P.O. Box 859208           (781) 356-4987          165 Bay State Drive
Braintree, MA 02185-9208                          Braintree, MA 02184

                 Confirm Facsimile by Telephone: (781) 799-4433




         Questions  and requests for  assistance  may be directed to D.F. King &
Co.,  Inc. at the address and  telephone  number set forth  below.  Requests for
additional copies of this Offer to Purchase, the Letter of Transmittal and other
tender offer  materials  may be directed to D.F. King & Co., Inc. or to brokers,
dealers, commercial banks or trust companies.


                     The Information Agent for the Offer is:



                              D.F. King & Co., Inc.

                                 77 Water Street
                            New York, New York 10005
                 Banks and Brokers Call Collect: (212) 269-5550
                     All Others Call Toll Free: 800-487-4870