Exhibit 22.2

                               SIS BANCORP, INC.
                           PROXY FOR SPECIAL MEETING

THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS OF SIS BANCORP, INC.
THE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR PROPOSAL 1.  THIS PROXY, WHEN
PROPERLY EXECUTED, WILL BE VOTED IN THE MANNER DIRECTED HEREIN BY THE
UNDERSIGNED.  IF NO DIRECTION IS GIVEN, THIS PROXY, IF OTHERWISE PROPERLY
EXECUTED, WILL BE VOTED FOR PROPOSAL 1.

The undersigned, a stockholder of SIS Bancorp, Inc. (the "Company"), revoking
all prior proxies, hereby appoints F. William Marshall, Jr., John M. Naughton
and Michael E. Tucker and each of them with full power of substitution, the
attorneys, agents and proxies of the undersigned to represent and vote all
shares of stock of the Company which the undersigned would be entitled to vote
if personally present at the Special Meeting of stockholders of the Company and
any adjournments thereof, to be held at the Headquarters of the Company on the
12th floor, SIS Bancorp, 1441 Main Street, Springfield, Massachusetts on
Thursday, December 4, 1997 at 10:00 a.m. local time, as specified herein as to
each proposal.

                                   (REVERSE)

PROXY FOR SPECIAL MEETING ON DECEMBER 4, 1997 FOR SIS BANCORP, INC.

THE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR PROPOSAL 1.    [ ] Please mark your
votes this way.

________________________
common

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PROPOSAL 1:  To approve and adopt the          [ ] FOR  [ ] AGAINST  [ ] ABSTAIN
Agreement and Plan of Reorganization, dated
as of August 18, 1997 (the "defined terms
Merger Agreement"), by and between the
Company and Glastonbury Bank and Trust
Company ("defined terms GBT"), and each of
the transactions contemplated thereby,
including the issuance by the Company of
shares of its common stock to the
shareholders of GBT, upon the terms and
subject to the conditions set forth in the
Merger Agreement, as more fully described in
the accompanying Joint Proxy Statement-
Prospectus.

IN THEIR DISCRETION, THE PROXIES NAMED HEREIN ARE AUTHORIZED TO VOTE ON SUCH
OTHER MATTERS AS MAY PROPERLY COME BEFORE THE MEETING OR ANY ADJOURNMENTS OR
POSTPONEMENTS THEREOF.  AT THE PRESENT TIME, THE BOARD OF DIRECTORS KNOWS OF NO
OTHER MATTERS TO BE BROUGHT BEFORE THE MEETING.

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Please date and sign exactly as name appears herein and return in the enclosed
envelope.  When shares are held as joint owners, both should sign.  Executors,
administrators, trustees or others signing in a representative capacity should
give their full title as such.  If a corporation, please sign in full corporate
name by president or other authorized officer.  If a partnership, please sign in
partnership name by an authorized person.
 
Dated: ____________ , 1997
 
 
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Signature
 
 
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Signature