1
                                                        EXHIBIT 10(w)


                                   UST CORP.

                               SEVERANCE PAY PLAN
                         (AND SUMMARY PLAN DESCRIPTION)
                                JANUARY 1, 1995


I.       PURPOSE

         This Plan is intended to provide salary continuation to eligible
employees of UST Corp. (the "Company") in the event that their employment is
terminated as provided hereafter due to a reduction in force or a corporate
restructuring or following a Change of Control.  This Plan is intended to
comply with all applicable requirements of the Employee Retirement Income
Security Act of 1974 ("ERISA") and the Regulations promulgated thereunder for
severance pay plans and is to be interpreted in a manner consistent with such
requirements.  This document contains the provisions of the Plan and the
Summary Plan Description.

II.      ELIGIBILITY TO PARTICIPATE

         A.   In order to be eligible to participate in this Plan:

              1.      You must be a regular full-time or part-time employee of
                      the Company.  (Temporary employees as classified by the
                      Company are not eligible to participate in this Plan.)

              2.      You must have completed at least three (3) months of
                      employment with the Company at the time your employment
                      terminates.

III.     QUALIFYING EVENTS

         A.   An employee eligible to participate in this Plan under Section II
              above (a "participating employee") is entitled to receive
              benefits under the Plan only if the employee is on the Company's
              active payroll or on a leave of absence that has been approved in
              writing, with guaranteed reinstatement, at the time his/her
              employment terminates and only if termination occurs in one of
              the following circumstances:

              1.      The participating employee's employment is terminated as
                      a result of the elimination of his/her position with the
                      Company in conjunction with a reduction in force or a
                      corporate restructuring and the employee is not offered
                      employment in a comparable position with the Company or
                      one of its Affiliates; or

              2.      The employee's employment is terminated other than for
                      Cause by the Company within twelve (12) months following
                      a Change of Control; and





   2
              3.      The employee is not then covered by another severance pay
                      plan or by an individual employment agreement or other
                      severance arrangement providing benefits that in the
                      aggregate are comparable to or exceed those for which the
                      employee would otherwise be eligible under this Plan.

IV.      EXCLUSIONS

         A.   The following are examples of events in which an employee would
              not qualify for benefits under this Plan:

              1.      The employee resigns or otherwise voluntarily leaves
                      his/her employment with the Company; or

              2.      The employee's employment is terminated by the Company
                      for Cause; or

              3.      The employee is offered comparable employment at the time
                      of the elimination of his/her position; or

              4.      The employee is temporarily laid off, as determined by
                      the Company; or

              5.      The employee is on a leave of absence which has not been
                      approved in writing or as to which reinstatement is not
                      guaranteed.

         B.   This Plan does not constitute a contract of employment for a
              specific term or otherwise alter the at-will nature of the
              employment relationship between any employee and the Company.


V.       BENEFITS

         A.   Benefits under the Plan are determined as follows:

              1.      A participating employee with less than twenty (20) full
                      years of continuous service as of the date the employee's
                      employment terminates shall receive two (2) weeks salary,
                      at the participating employee's final base rate of pay,
                      for each full year of service with the Company as of the
                      date the employee's employment terminates, to a maximum
                      of twenty-six (26) weeks of pay; provided, however, that
                      no participating employee shall receive less than three
                      weeks pay, at that employee's final base rate.


              2.      A participating employee with twenty (20) full years or
                      more of continuous service as of the date the employee's
                      employment terminates shall receive thirty-nine (39)
                      weeks of salary, at the participating employee's final
                      base rate of pay.





                                      -2-
   3

              3.      In the case of any participating employee employed on a
                      part-time basis, benefits hereunder shall be pro- rated,
                      based on the number of hours the employee is regularly
                      scheduled to work per week.


         B.   Provided that the participating employee elects to receive
              benefits as salary continuation under option 2 of paragraph C of
              this Section V, and provided further that the participating
              employee is currently enrolled in, and exercises his/her right to
              continue coverage under the Company's group health plan in
              accordance with applicable federal law ("COBRA"), then, for the
              duration of the period in which the participating employee is
              receiving such salary continuation or, if earlier, until the date
              the participating employee ceases to be eligible for continued
              coverage in accordance with COBRA, the Company shall continue to
              pay that share of the premium cost of the participating
              employee's coverage and that of his/her eligible dependents under
              the Company's group health plan that it pays for active employees
              of the Company and their eligible dependents generally or,
              following a Change of Control, the amount the Company was paying
              for active employees of the Company and their eligible dependents
              generally immediately prior to such Change of Control, if
              greater.

         C.   Benefits under Section V.A for which a participating employee is
              eligible shall be reduced by all taxes and other amounts which
              the Company is required to withhold under applicable law and
              shall be payable, at the participating employee's election, (1)
              in a single lump sum within thirty (30) days following the date
              of termination of the participating employee's employment or (2)
              as salary continuation payable at the Company's regular payroll
              periods and in accordance with its regular payroll practices
              commencing on the next regular payday immediately following the
              date of termination of the participating employee's employment.

         D.   Benefits otherwise payable under this Plan shall be reduced by
              any amounts to which the employee is entitled under applicable
              law as a result of the termination of his/her employment.

         E.   The Company pays the full cost of benefits provided under this
              Plan from the Company's general assets.

         F.   Benefits under the Plan are not assignable or subject to
              alienation.  Likewise, benefits are not subject to attachments by
              creditors or through legal process against the Company or any
              employee.

         G.   Notwithstanding anything to the contrary contained herein, any
              and all payments to be provided hereunder to or on behalf of any
              participating employee are subject to reduction to the extent
              required by applicable statutes, regulations, rules and





                                      -3-
   4
         directives of federal, state and other governmental and regulatory
         bodies having jurisdiction over the Company and/or any of its
         Affiliates.

VI.      DEFINITIONS

         A.   Words or phrases which are initially capitalized or within
              quotation marks shall have the meanings provided in this Section
              VI and as provided elsewhere herein.  For purposes of this Plan,
              the following definitions apply:

              1.      An "Affiliate" means any individual, corporation or other
                      entity directly or indirectly controlling, controlled by
                      or under common control with the Company, where control
                      may be by management authority, equity interest or
                      otherwise.

              2.      "Cause" for termination means only (i) the employee's
                      refusal to perform or gross negligence in the performance
                      of, his/her duties and responsibilities for the Company
                      or (ii) the employee's fraud, embezzlement or other
                      material dishonesty with respect to the Company or any of
                      its Affiliates or (iii) an action or omission by the
                      employee in violation of the banking or other laws
                      governing the operations of the Company and/or (iv) the
                      employee's conviction of, or plea of no contest to, a
                      felony, each as communicated to the employee by notice
                      from the Company setting forth in reasonable detail the
                      nature of such Cause.

              3.      A "Change of Control" shall be deemed to have been
                      consummated if hereafter

                               (i) any "person", as such term used in Section
                      13(d) and 14(d) of the Securities Exchange Act of 1934 as
                      amended (the "Exchange Act") other than the Company or
                      any of its subsidiaries or affiliates or any trustee or
                      other fiduciary holding securities under an employee
                      benefit plan of the Company or any of its subsidiaries or
                      affiliates, becomes a beneficial owner (within the
                      meaning of Rule 13d-3, as amended, as promulgated under
                      the Exchange Act), directly or indirectly, of securities
                      representing twenty-five (25%) percent or more of the
                      combined voting power of the Company's then outstanding
                      securities; or

                               (ii) during any period of two consecutive years
                      (not including any period prior to the establishment of
                      this Plan), individuals who at the beginning of such
                      period constitute the Board of Directors of the Company
                      (the "Board"), and any new director (other than a
                      director designated by a person who has entered into an
                      agreement with the Company to effect a transaction
                      described in clause (i), (iii) or (iv) of this Section
                      V.A.3) whose election by the Board or nomination for
                      election by the Company's stockholders was approved by a
                      vote of at least two-thirds of the directors





                                      -4-
   5
                      then still in office who either were directors at the 
                      beginning of the period or whose election or nomination 
                      for election was previously so approved, cease for any 
                      reason to constitute at least a majority thereof; or

                               (iii) the stockholders of the Company approve a
                      merger or consolidation of the Company with any other
                      corporation, other than a merger or consolidation which
                      would result in the voting securities of the Company
                      outstanding immediately prior thereto continuing to
                      represent (either by remaining outstanding or by being
                      converted into voting securities of the surviving entity)
                      more than eighty percent (80%) of the combined voting
                      power of the voting securities of the Company or such
                      surviving entity outstanding immediately after such
                      merger or consolidation; provided, however, that a merger
                      or consolidation effected to implement a recapitalization
                      of the Company (or similar transaction) in which no
                      "person" (as hereinabove defined) acquires more than
                      twenty-five percent (25%) of the combined voting power of
                      the Company's then outstanding securities shall not
                      constitute a Change of Control; or

                               (iv) the stockholders of the Company approve a
                      plan of complete liquidation of the Company; or

                               (v)  there occurs a closing of a sale or other
                      disposition by the Company of all or substantially all of
                      the Company's assets.

              4.      The "Company" means UST Corp. or, following a Change of
                      Control, any successor of UST Corp.


VII.     ADMINISTRATION, CLAIMS PROCEDURE AND GENERAL INFORMATION

         A.   The Company reserves the right to amend, modify and terminate the
              Plan.  Also, the Company, as the Plan administrator within the
              meaning of ERISA, reserves full discretion to administer the Plan
              in all of its details, subject to the requirements of law.  The
              Company shall have such discretionary powers as are necessary to
              discharge its duties.  Any interpretation or determination that
              the Company makes regarding this Plan, including without
              limitation determinations of eligibility, participation and
              benefits, will be final and conclusive, in the absence of clear
              and convincing evidence that the Company acted arbitrarily and
              capriciously.

         B.   Notwithstanding anything to the contrary contained herein, this
              Plan may not be modified, amended or terminated during the first
              twelve (12) months following a Change of Control, excluding only
              such administrative changes as may be required for the assumption
              of this Plan by the successor of Company upon a Change of
              Control, and any participating employee who is such for purposes
              of this Plan at the





                                      -5-
   6
              time of a Change of Control will remain so for twelve (12) months
              following that Change of Control.

         C.   If you believe you are being denied any rights under the Plan,
              you may file a claim in writing with the Company, as Plan
              administrator.  If your claim is denied, in whole or in part, the
              Plan administrator will notify you in writing, giving the
              specific reasons for the decision, including specific reference
              to the pertinent Plan provisions and a description of any
              additional material or information necessary to perfect your
              claim and an explanation of why such material or information is
              necessary.  The written notice will also advise you of your right
              to request a review of your claim and the steps that need to be
              taken if you wish to submit your claim for review.  If the Plan
              administrator does not notify you of its decision within 90 days
              after it had received your claim (or within 180 days, if special
              circumstances exist requiring additional time, and if you had
              been given a written explanation for the extension within the
              initial 90-day period), you should consider your claim to have
              been denied.  At this time you may request a review of the denial
              of your claim.

              A request for review must be made in writing by you or your duly
              authorized representative to the Company, as Plan administrator,
              within 60 days after you have received the notice of denial.  As
              part of your request, you may submit written issues and comments
              to the Plan administrator, review pertinent documents, and
              request a hearing.  The Plan administrator's written decision
              will be made within 60 days (or 120 days if a hearing is held or
              if other special circumstances exist requiring more than 60 days
              and written notice of the extension is provided to you within the
              initial 60-day period) after your request has been received.
              Again, the decision will include specific reasons, including
              references to pertinent Plan provisions.

         D.   As a participant in the Plan, you are entitled to certain rights
              and protections under ERISA.  ERISA provides that all Plan
              participants shall be entitled to:

              1.      examine, without charge, at the Plan administrator's
                      office, all Plan documents and copies of the documents
                      filed by the Plan administrator with the U.S. Department
                      of Labor; and

              2.      obtain copies of these documents and other Plan
                      information upon written request to the Plan
                      administrator.  The Plan administrator may make a
                      reasonable charge for the copies.

              In addition to creating rights for Plan participants, ERISA
              imposes duties upon the people who are responsible for the
              operation of the Plan.  The people who operate the Plan, called
              "fiduciaries", have a duty to do so prudently and in the interest
              of Plan participants.





                                      -6-
   7
              Neither the Company nor any other person may discriminate against
              an employee in any way to prevent him/her from obtaining benefits
              or exercising rights under ERISA.

              If a claim for benefits is denied in whole or in part, you must
              receive a written explanation of the reason for the denial.  You
              have the right to have the Plan administrator review and
              reconsider the claim.

              Under ERISA, there are steps you can take to enforce the above
              rights.  For instance, if you request materials from the Plan
              administrator and you do not receive them within 30 days, a suit
              may be filed in federal court.

              In such a case, the court may require the Plan administrator to
              provide the materials and pay you up to $100 a day until they are
              received, unless they were not sent due to reasons beyond the
              Plan administrator's control.  If you have a claim for benefits
              which is denied or not processed, in whole or in part, a suit may
              be pursued in a state or federal court.  If you are discriminated
              against for asserting your rights, you may seek assistance from
              the U.S.  Department of Labor, or may file suit in a federal
              court.

              The court will decide who should pay the court costs and legal
              fees.  If you are successful, the court may order the other party
              to pay these costs and fees.  If you should lose, the court may
              order you to pay these costs and fees.

              If you have any questions about the Plan, you should contact the
              Plan administrator.  If there are any questions about this
              statement or about employee rights under ERISA, please contact
              the nearest area office of Pension and Welfare Benefits, U.S.
              Department of Labor.

         E.   The following information about this Plan is provided in
              accordance with the applicable requirements of ERISA and the
              regulations promulgated thereunder:

              Plan Sponsor
              ------------
                
              UST Corp.
              40 Court Street
              Boston, MA  02108

              Employer Identification Number of Plan Sponsor
              ----------------------------------------------

              04-2436093

              Plan Number
              -----------       

              515





                                      -7-
   8
              Plan Administrator
              ------------------        

              UST Corp.
              40 Court Street
              Boston, MA  02108
              Attn:  Human Resources Dept.
              Tel. (617) 726-7000

              Type of Administration
              ----------------------    

              Company-administered

              Type of Plan
              ------------              

              The plan is a severance pay plan

              Plan Year
              --------- 

              The plan year is the calendar year

              Legal Process
              -------------     

              The agent for service of legal
              process with respect to the plan is:

              General Counsel
              UST Corp.
              40 Court Street
              Boston, MA  02108





                                      -8-