PLC SYSTEMS INC
10-Q, 1996-08-14
ELECTROMEDICAL & ELECTROTHERAPEUTIC APPARATUS
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                    FORM 10-Q

         Quarterly  report  pursuant  to Section  13 or 15(d) of the  Securities
         Exchange Act of 1934. For the quarter ended June 30, 1996.

                         Commission file number 1-11388


                                PLC SYSTEMS INC.
             (Exact name of registrant as specified in its charter)


BRITISH COLUMBIA, CANADA                                 04-3153858
(State or other jurisdiction of             (I.R.S. Employer Identification No.)
  incorporation or organization)

113 CEDAR STREET, SUITE S-2, MILFORD, MASSACHUSETTS               01757
(Address of principal executive offices)                        (Zip Code)

       Registrant's telephone number, including area code: (508) 478-5991

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

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 12 months (or for such  shorter  period that the  registrant  was
required  to file  such  reports),  and  (2) has  been  subject  to such  filing
requirements for the past 90 days. YES X  NO   .
                                      ---   ---


                      APPLICABLE ONLY TO CORPORATE ISSUERS:


Indicate  the  number of shares  outstanding  of each of the  issuer's  class of
common stock, as of the latest practical date.

         Class                               Outstanding at August 9, 1996
         -----                               -----------------------------
  Common Stock, no par value                           16,455,219







                                PLC SYSTEMS INC.

                                      INDEX

<TABLE>
<CAPTION>

              

Part I.  Financial Information:

         Item 1.
               <S>                                                                                        <C>
               Consolidated Balance Sheets.................................................................3

               Consolidated Statements of Operations.......................................................4

               Consolidated Statements of Cash Flows.......................................................5

               Notes to Consolidated Financial Statements..................................................6


         Item 2.  Management's Discussion and Analysis
                    of Financial Condition and Results of Operations....................................7-10


Part II.     Other Information:

         Item 1.    Legal Proceedings.....................................................................11

         Item 2.    Changes in Securities.................................................................11

         Item 3.    Defaults by the Company Upon its Senior Securities....................................11

         Item 4.    Submission of Matters to a Vote of Security Holders...................................11

         Item 5.    Other Information.....................................................................12

         Item 6.    Exhibits and Reports on Form 8-K..................................................... 12



</TABLE>



ITEM 1.  FINANCIAL STATEMENTS


                                PLC SYSTEMS INC.
                           CONSOLIDATED BALANCE SHEETS
                                 (In thousands)

<TABLE>
<CAPTION>

                                                                     June 30,       December 31,
                                                                       1996            1995
                                                                       ----            ----
                                                                   (Unaudited)
                                     ASSETS
<S>                                                                     <C>              <C>  
Current assets:
    Cash and cash equivalents..................................      $ 4,307          $   704  
    Short-term investments.....................................        9,441            6,500
    Accounts receivable, net...................................          829            6,749
    Inventories, net ..........................................        2,889            1,789
    Prepaid expenses and other current assets..................        1,152              488
                                                                     -------          -------
       Total current assets....................................       18,618           16,230
                                                        
Equipment, furniture and leasehold improvements, net  .........        2,302            1,692
Other assets...................................................          346              368
                                                                     -------          -------
       Total assets............................................      $21,266          $18,290
                                                                     =======          =======


                      LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:
    Accounts payable...........................................     $  1,406        $     546
    Accrued clinical costs.....................................          852              854
    Accrued compensation.......................................          194              777
    Deferred revenue...........................................           79              166
    Other accrued liabilities..................................          394              346
                                                                     -------          -------
       Total current liabilities...............................        2,925            2,689

Deferred revenue...............................................          254               61
Capital lease obligations .....................................           27               32
Commitments and contingencies

Stockholders' equity:
Common stock, no par value,  25,000 shares authorized,  16,455 
    and 15,944 shares issued and outstanding in 1996 and 1995,
    respectively...............................................       53,786           51,411
Accumulated deficit............................................      (35,215)         (35,589)
Foreign currency translation...................................         (511)            (314)
                                                                     -------          -------
                                                                      18,060           15,508
                                                                     -------          -------
Total liabilities and stockholders' equity.....................     $ 21,266         $ 18,290
                                                                    ========         ========



         The accompanying notes are an integral part of the consolidated
                             financial statements.


</TABLE>

   
                                       -3-




                                PLC SYSTEMS INC.
                      CONSOLIDATED STATEMENTS OF OPERATIONS
                      (In thousands, except per share data)


<TABLE>
<CAPTION>

                                                       Three Months Ended           Six Months Ended
                                                             June 30,                   June 30,
                                                             --------                   --------

                                                       1996          1995          1996          1995      
                                                       ----          ----          ----          ----
<S>                                                   <C>          <C>           <C>           <C>    
Revenues:                                                                                    
 Product sales.................................        $ 769        $1,164        $4,966        $3,878     
 Placement and service fees....................          662           323         1,294           477     
                                                      ------        ------        ------        ------
      Total revenues ..........................        1,431         1,487         6,260         4,355
                                                                                             
                                                                                             
Cost of revenues:                                                                            
 Product sales.................................          174           592         1,260         1,656
 Placement and service fees....................          202            25           506            51
                                                      ------        ------        ------        ------
   Total cost of revenues......................          376           617         1,766         1,707
                                                                                             
                                                                                             
Gross profit...................................        1,055           870         4,494         2,648
                                                                                             
Operating expenses:                                                                          
 Selling, general and administrative...........        1,591         1,110         3,042         2,127
 Research and development......................          559           503         1,318         1,258
                                                      ------        ------        ------        ------
   Total operating expenses....................        2,150         1,613         4,360         3,385
                                                      ------        ------        ------        ------
                                                                                             
Income (loss) from operations..................       (1,095)         (743)          134          (737)
                                                                                             
Other income:                                                                                
 Interest income, net..........................          161           165           299           321
 Gain (loss) from foreign currency, net........           16             -           (55)            -
                                                      ------        ------        ------        ------  
                                                         177           165           244           321
                                                      ------        ------        ------        ------
                                                                                             
Income (loss) before income taxes..............         (918)         (578)          378          (416)
Provision for income taxes.....................          (15)            -             4             -
                                                      ------        ------        ------        ------
Net income (loss)..............................       $ (903)       $ (578)       $  374        $ (416)
                                                      ======        ======        ======        ======
                                                                                             
Net income (loss) per share....................       $(0.05)       $(0.04)       $ 0.02        $(0.03)
                                                                                             
Shares used to compute net income (loss)                                                     
 per share.....................................   16,441,000    15,849,000    17,214,000    15,847,000
                                                                                           

</TABLE>



         The accompanying notes are an integral part of the consolidated
                              financial statements.


                                      -4-




                                PLC SYSTEMS INC.
                      CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (In thousands)





                                                             Six  Months Ended
                                                                  June 30,
                                                            -------------------
                                                            1996          1995
Operating activities:                                       ----          ----
  Net income (loss)..................................      $  374         $(416)

  Adjustments to reconcile net income to net cash 
  provided (used) for operating activities:
   Depreciation and amortization.....................         524           164
   Change in assets and liabilities:              
     Decrease (increase) in accounts receivable......       5,920          (128)
     Increase in inventory...........................      (1,100)       (1,170)
     Increase in prepaid expenses and other assets...        (654)          (62)
     Increase in accounts payable....................         860           327
     Increase (decrease) in deferred revenue.........         106           (11)
     (Decrease) increase in accrued liabilities......        (538)          611
                                                          -------        ------
Net cash provided (used) for operating activities....       5,492          (685)

Investing activities:                             
  Purchase of short-term investments.................     (16,442)       (8,181)
  Maturities of short-term investments...............      13,501         7,857
  Purchase of fixed assets...........................      (1,122)         (264)
                                                          -------        ------
Net cash used for investing activities...............      (4,063)         (588)

Financing activities:
  Net proceeds from sales of shares..................       2,264            37
  Repayment of stockholder notes.....................         110            56
  Principal payments on capital lease obligations....          (4)           (4)
                                                          -------       -------
Net cash provided by financing activities............       2,370            89

Effect of exchange rate changes on cash 
    and cash equivalents.............................        (196)           34
                                                          -------       -------
Net increase(decrease) in cash and cash equivalents..       3,603        (1,150)

Cash and cash equivalents at beginning of period.....         704         3,699
                                                          -------       -------
Cash and cash equivalents at end of period...........     $ 4,307        $2,549
                                                          =======       =======






         The accompanying notes are an integral part of the consolidated
                             financial statements.


                                      -5-





                                PLC SYSTEMS INC.
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS



1.        BASIS OF PRESENTATION

         The balance  sheet as of June 30, 1996 and the  statement of operations
and cash flows for the six months ended June 30, 1996 and 1995 are unaudited and
in the opinion of management,  all adjustments necessary for a fair presentation
of such financial statements have been recorded. Such adjustments consisted only
of normal recurring items.

         Certain  information  and  footnote  disclosures  normally  included in
financial  statements  prepared in accordance with generally accepted accounting
principles have been condensed or omitted.  The year-end  balance sheet data was
derived  from audited  financial  statements,  but does not include  disclosures
required by generally accepted accounting principles. It is suggested that these
interim  financial  statements be read in  conjunction  with the Company's  most
recent Form 10-K and Annual Report as of December 31, 1995.

2.       NET INCOME (LOSS)  PER SHARE

         Net income per share is calculated using the weighted average number of
shares and share  equivalents  outstanding  during the period  which  consist of
stock options and stock warrants. The net loss per share is calculated using the
weighted  average  number of shares  outstanding  during the period and does not
include share equivalents.

3.       INVENTORY

         Inventories consist of the following (in thousands):
          
                                                      June 30,      December 31,
                                                       1996            1995
                                                     --------        ---------
           Raw materials..........................     $1,408           $ 644
           Work in process........................        508              56
           Finished goods.........................        973           1,089 
                                                       ------          ------ 
                                                       $2,889          $1,789
                                                       ======          ======

4.       STOCK WARRANTS

         On March 8, 1996,  the Company's  Form S-3 to register the common stock
underlying  the warrants  issued to the  Company's  1992  underwriters  and 1994
placement   agent  was  declared   effective  by  the  Securities  and  Exchange
Commission.  The warrant issued to the underwriters provided for the purchase of
145,000  shares at $6.00 per share and  72,500  shares at $4.80 per  share.  The
warrant  issued to the  placement  agent  provided  for the  purchase of 150,000
shares at $3.94 per share. At June 30, 1996, all of the placement  agents shares
and all but  16,770 of the  underwriters  shares had been  purchased  generating
approximately $1,660,000 in proceeds.

   

                                       -6-


ITEM 2.


                                PLC SYSTEMS INC.
                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  FINANCIAL CONDITION AND RESULTS OF OPERATIONS


OVERVIEW

         The Company has two  marketing  strategies  for selling the Heart Laser
and its related  components and sterile kits;  placement and sales. In countries
where health care is reimbursed by the  government or by private  insurers,  the
Company's  strategy is to be reimbursed  for the use of the Heart Laser on a per
procedure basis under a contractual  agreement whereby the customer commits to a
minimum number of procedures on a yearly basis.  These  contracts  typically run
for a  minimum  of  three  years  and  allow  for the  customer  to  exceed  the
contractual minimums.  These contracts,  referred to as placement contracts, are
preferred  to the sale  strategy  as the  Company  believes  that the  potential
revenue  stream is greater and more  profitable.  Sterile  handpieces  and other
disposables are included in the per procedure fee. Revenues from these contracts
are classified as placement fees.

         In countries  where health care is not  reimbursed by the government or
insurance,  or where  credit  risk is high,  the Heart  Laser is sold as capital
equipment and the related  sterile  handpieces  and other  disposables  are sold
separately  for each  procedure.  The Company  sells Heart  Lasers  directly and
through distributors. These sales are classified as product sales.

RESULTS OF OPERATIONS

         Total revenues for the quarter ended June 30, 1996 were  $1,431,000,  a
decrease of 4% when compared to $1,487,000  for the quarter ended June 30, 1995.
Product sales for the quarter ended June 30, 1996 were  $769,000,  a decrease of
34% when compared to $1,164,000  for the quarter ended June 30, 1995.  The major
factor in both of these  quarterly  decreases is the  comparison  of a sale of a
Heart Laser through a distributor in the quarter ended June 30, 1996 as compared
with the direct sale of a Heart Laser  which was  recorded in the quarter  ended
June 30, 1995.

         Total  revenues  for the six  month  period  ended  June 30,  1996 were
$6,260,000,  an increase of 44% when compared to  $4,355,000  for the six months
ended June 30, 1995.  Product sales for the six month period ended June 30, 1996
were  $4,966,000,  an increase of 28% when  compared to  $3,878,000  for the six
months  ended  June 30,  1995.  The major  factors in both of these year to date
increases  are the number of Heart  Lasers  shipped  and the method of sale.  In
1996, there were 11 Heart Lasers shipped;  seven of which were sales as compared
with six shippped in 1995, five of which were sales.

         Another  factor in the year to date  increase in total  revenues is the
increase in  placement  and service  fees.  Placement  and service  fees for the
quarter  and six  months  ended  June 30,  1996 were  $662,000  and  $1,294,000,
respectively,  an  increase of 105% and 171% when  compared  with  $323,000  and
$477,000  for the same  periods  in fiscal  1995.  These  significant  increases
reflect the


                                      -7-




                                PLC SYSTEMS INC.
                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  FINANCIAL CONDITION AND RESULTS OF OPERATIONS
                                   (Continued)


continued  acceptance of the Company's  preferred  method of sale; the placement
contract, which has increased five fold over the past twelve months.

         Total gross profit for the three and six month  periods  ended June 30,
1996  approximated  74%  and  72%,  respectively,  up  from  59% and 61% for the
comparable  periods in fiscal  1995.  These  respective  increases  of 15 and 11
percentage  points  reflect the higher  margins  associated  with the  increased
number of direct sales of Heart  Lasers in 1996 coupled with the higher  margins
generated under placement contracts.

         Selling,   general  and  administrative   spending  of  $1,591,000  and
$3,042,000  for the three and six month periods  ending June 30, 1996  increased
43% from  both of the  comparable  periods  in  fiscal  1995 of  $1,110,000  and
$2,127,000. More than half of each of these respective increases of $481,000 and
$915,000  are a  reflection  of the  investment  the  Company  has  made  in its
international sales and marketing efforts in Europe and the Pacific Rim for both
the three and six month periods.  The balance of the increases for the three and
six month  periods are related to  increased  domestic  staffing  and  increased
spending  for  consultants  related  to  health  care  reimbursement  of the TMR
procedure.

         Research  and  development  spending for the three and six months ended
June 30, 1996 was $559,000 and $1,318,000,  respectively, an increase of 11% and
5% when  compared  to  research  spending of  $503,000  and  $1,258,000  for the
comparable  periods in fiscal 1995.  These  respective  increases of $56,000 and
$60,000 reflect the continued increase in spending for scientific subsidies made
to further the study of transmyocardial revascularization.

         For the three and six  month  periods  ended  June 30,  1996,  interest
income of $161,000 and $299,000, respectively,  decreased slightly when compared
to $165,000  and  $321,000  for the  comparable  periods in fiscal  1995.  These
decreases were related to lower interest rates throughout both the three and six
month periods in 1996 as compared to the  comparable  periods in 1995.  With the
establishment  of the  Company's  subsidiary in Germany,  currency  fluctuations
between the German deutchmark and the US dollar, have resulted in a $16,000 gain
for the quarter ended June 30, 1996 and a year to date loss of $55,000.

         Although the Company  believes it has  sufficient  net  operating  loss
carryforwards to offset income taxes for the fiscal year ended December 31,1996,
a  provision  for income tax was made in the first  quarter of 1996 to cover the
tax liability  under the  alternative  minimum tax  regulations  which cannot be
offset by net operating loss carryforwards.  With the $1,095,000  operating loss
incurred in the quarter ended June 30, 1996,  this  provision  was  subsequently
adjusted.  There was no provision  for income taxes in the quarter and six month
period ended June 30, 1995 due to the operating losses incurred in both periods.

   




                                       -8-



                                PLC SYSTEMS INC.
                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  FINANCIAL CONDITION AND RESULTS OF OPERATIONS
                                   (Continued)



         The net loss of $903,000 for the quarter ended June 30, 1996  increased
56% when  compared  to the net loss of $578,000  for the quarter  ended June 30,
1995.  This was the direct result of shipping more Heart Lasers under  placement
contracts  coupled  with  increased   operating  expenses  associated  with  the
Company's  investment  in  its  international  subsidiaries  and  the  continued
investment in TMR scientific  subsidies.  The Company's preferred method of sale
is the  placement  contract as  management  believes  the long term  revenue and
profit  potential is greater under this method as compared with the sale method.
For the six month period  ended June 30,  1996,  the Company had a net profit of
$374,000 as compared  with a net loss of $416,000 for the six month period ended
June 30, 1995.  This  improvement  is directly  related to the increase in Heart
Laser sales  coupled  with the  improved  mix of direct  sales in the six months
ended June 30, 1996 as compared to the six months ended June 30, 1995.

LIQUIDITY AND CAPITAL RESOURCES

         At June  30,  1996,  the  Company  had cash  and  cash  equivalents  of
$4,307,000 and short-term investments of $9,441,000. During the six months ended
June 30, 1996, the Company  received  approximately  $1,660,000 in proceeds from
the  exercise of stock  warrants  coupled  with  $604,000  in proceeds  from the
exercise of stock options and $110,000 from the repayment of shareholder  loans.
Cash  provided by  operations  approximated  $5,500,000  from the  collection of
$5,900,000 of accounts  receivable,  principally  the  $5,700,000  IMATRON Japan
contract offset by investment in inventory. As a result, the Company invested an
additional  $2,900,000 in short term investments.  Approximately  $1,122,000 was
used to acquire capital equipment,  principally  related to an investment in the
placement  lasers coupled with leasehold  improvements  related to the Company's
new facility.  On June 19, 1996, the Company signed a five year operating  lease
totalling   approximately   $1,482,000   for  its  new   facility  in  Franklin,
Massachusetts.

         The Company believes that existing cash balances are sufficient to meet
working  capital and  capital  expenditure  requirements  through  fiscal  1997.
However,  unanticipated decreases in operating revenues or increases in expenses
may adversely impact the Company's cash position. In the future, the Company may
seek  additional   financing  through  issuance  and  sale  of  debt  or  equity
securities,  bank financing,  joint ventures or other means. The availability of
such  financing  and the  reasonableness  of any related  terms in comparison to
market conditions cannot be assured.

         The Company believes that periodic  operating losses are possible until
after  such  time as the  Company  receives  its PMA from the FDA for the  Heart
Laser.  The Company  submitted its PMA  application in April 1995.  Although the
Heart  Laser has been  granted  "expedited  review"  status by the Food and Drug
Administration  ("FDA"), given the current uncertainties of the time required by
the FDA to approve a Premarket Approval ("PMA") application,  the Company cannot
project when, if at all,  such  approval  would be granted.  Until PMA approval,
continued profitability will likely be determined by the number of international
shipments and the related mix of sales and placements.

   



                                       -9-




                                PLC SYSTEMS INC.
                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  FINANCIAL CONDITION AND RESULTS OF OPERATIONS
                                   (Continued)



         In addition,  the Company must also  successfully  obtain approval from
the FDA for sale of the Heart  Laser in the  United  States,  obtain  regulatory
approval from and market the Heart Laser in certain  additional foreign markets,
and  convince  health care  professionals,  third  party  payors and the general
public of the medical and economic benefits of the Heart Laser. No assurance can
be given that the Company will be  successful  in  marketing  the Heart Laser or
that the Company will be able to operate  profitably  on a consistent  quarterly
basis.


    



                                      -10-





                                PLC SYSTEMS INC.
                            Part II Other Information




ITEM 1.  LEGAL PROCEEDINGS.

         None

ITEM 2.  CHANGES IN SECURITIES

         None

ITEM 3.  DEFAULTS BY THE COMPANY UPON ITS SENIOR SECURITIES

         None

ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY-HOLDERS.

         On June 14,  1996,  the  Company  held its  Annual  General  Meeting of
         Stockholders to vote on the following proposals:

         1. To elect  three  members  of the Board of  Directors.  Nominees  for
            Director were: (a) Harold P. Capozzi; (b) Dr. H.B. Brent Norton; and
            (c) Dr. Roberts A. Smith ("Proposal No.1");

         2. To approve an amendment to the Corporation's  1995 Stock Option Plan
            to  increase  the  number of shares of Common  Stock  that have been
            reserved for issuance pursuant to the plan from 700,000 to 1,400,000
            ("Proposal No. 2");

         3. To appoint Ernst & Young LLP as auditors for Fiscal Year 1996 and to
            authorize  the Directors to fix the  remuneration  to be paid to the
            auditors ("Proposal No. 3").

         Of the 16,436,281  shares of the Company's Common Stock of record as of
April  26,  1996  able to be voted  at the  meeting,  a total  of  approximately
10,747,215 shares were voted, or approximately 65.4% of the Company's issued and
outstanding  shares of Common Stock entitled to vote on these  matters.  Each of
the proposals was adopted, with the vote total as follows:




                                      -11-






                                PLC SYSTEMS INC.
                     Part II Other Information - Continued

                                       SHARES          SHARES          SHARES
         PROPOSAL                     VOTING FOR    VOTING AGAINST    ABSTAINING
         --------                     ----------    --------------    ----------
         
         NO. 1

         (a) Harold P. Capozzi        10,658,101          0            89,114

         (b) Dr. H.B. Brent Norton    10,664,786          0            82,429

         (c) Dr. Roberts A. Smith     10,665,136          0            82,079


         NO. 2                         9,725,288      922,189          99,738

         NO. 3                        10,674,035       35,660          37,520


ITEM 5.  OTHER INFORMATION

         None

ITEM 6.  EXHIBITS AND REPORTS ON FORM 8-K

         a.) Exhibits

             (I) The following exhibits are filed herewith:

             Exhibit
                No.                             Title
             -------                            -----

             10a        Form of Key Employee Agreement of Robert I. Rudko.

             10b        Form of Key Employee Agreement of Max L. Hibbs.

             10c        Lease by and between Aetna Insurance Co. and PLC Medical
                        Systems, Inc. dated June 19, 1996.

             11         Statement re computation of per-share earnings.

             27         Financial Data Schedule.

         b.) Reports on Form 8-K

             None

                               
                                      -12-


                                


                                PLC SYSTEMS INC.
                            Part II Other Information
                                   (Continued)






SIGNATURES

       Pursuant to the requirements of the Securities  Exchange Act of 1934, the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorized.




                                                      PLC SYSTEMS INC.
                                                      Registrant



Date:    August 13, 1996                               /s/  Patricia L. Murphy
      -----------------------                          -------------------------
                                                       Patricia L. Murphy
                                                       (Chief Financial Officer)

    

                                      -13-




                                     AMENDED
                             KEY EMPLOYEE AGREEMENT



To:      Dr. Robert I. Rudko                             As of September 8, 1994
         4 Short Road                              and Amended on August 1, 1996
         Holliston, Massachusetts  01760


         The  undersigned,  PLC Systems  Inc., a British  Columbia  corporation,
which together with its  wholly-owned  subsidiary,  Laser  Engineering,  Inc., a
Delaware  corporation,  as  well  as its  successors  and  assigns  (hereinafter
collectively referred to as the "Company"), hereby agree with you as follows:

         l.       Position and Responsibilities.

                  1.1 You shall  serve as  Chairman  of the Board of the Company
(or in such other  executive  capacity  as shall be  designated  by the Board of
Directors  and  reasonably  acceptable  to you) and  shall  perform  the  duties
customarily associated with such capacity from time to time and at such place or
places  as  the  Company  shall  designate  are  appropriate  and  necessary  in
connection  with  such  employment;  provided,  however,  that you  shall not be
required to relocate  your place of employment  beyond a  twenty-five  (25) mile
radius from Franklin, Massachusetts without your prior written consent.

                  1.2 You will,  to the best of your  ability,  devote your full
time and best  efforts  to the  performance  of your  duties  hereunder  and the
business and affairs of the Company.  You agree to perform such executive duties
as may be assigned to you by or on authority of the Company's Board of Directors
from time to time.

                  1.3 You will  duly,  punctually  and  faithfully  perform  and
observe  any and all rules and  regulations  which the  Company may now or shall
hereafter establish governing the conduct of its business.

                  1.4      You will report directly to the Company's Board of 
Directors.

         2.       Term of Employment.

                  2.1 The initial term of this Agreement shall be for the period
of years  set forth on  Exhibit  "A"  annexed  hereto  commencing  with the date
hereof. Thereafter, this Agreement shall be automatically renewed for successive
periods of one year,  unless you or the  Company  shall give the other party not
less than three (3) months written notice of  non-renewal.  Your employment with
the  Company may be  terminated  at any time as provided in Section 2.2 . If the
Company gives you 






notice of non-renewal or  termination,  the Company shall be obligated to pay to
you as  Severance  Benefits  an  amount  set  forth in  Sections  7 and/or 8 (as
applicable) of Exhibit "A" hereto, plus payment in full of any amounts otherwise
due you, less applicable  taxes and other required  withholdings and any amounts
you may owe to the Company.

                  2.2      The Company  shall have  the right, on written notice
to you, to terminate your employment:

                           (a)  immediately  at any time for "Cause" (as defined
         herein  subject to your right of cure and right to dispute as  provided
         in Section 2.3 herein); or

                           (b) at any time,  upon not less  than  seven (7) days
         written notice, without "Cause" provided the Company shall be obligated
         to pay to you as  Severance  Benefits  an amount  equal to the sums set
         forth in Sections 7 or 8, as applicable,  of Exhibit "A," plus any sums
         then  due  to  you,  less  (i)  applicable  taxes  and  other  required
         withholdings, and (ii) any amounts you may owe to the Company. Payments
         under  this  Section  2.2 (b)  shall not be due or  payable  if you are
         terminated  at any time for "Cause" or if you  voluntarily  resign from
         your employment except as set forth in Section 8 of Exhibit "A."

                  2.3 For purposes of Section  2.2, the term "Cause"  shall mean
(a) gross  negligence  in the  performance  of assigned  duties;  (b) refusal to
perform or  discharge  the duties or  responsibilities  assigned by the Board of
Directors  of PLC Systems Inc.  provided the same are not illegal,  unethical or
inconsistent with the position of Chairman of the Board of a corporation and the
failure to correct  such  refusal  and perform  such duties or  responsibilities
within a reasonable  period of time (but in any event no less than two weeks (14
calendar days) after written notice of such failure); (c) conviction of a felony
involving  moral  turpitude;  (d)  willful or  prolonged  absence  from work not
excused  by a  bona  fide  medical  disability  as  reasonably  determined  by a
qualified  physician  mutually  acceptable  to both you and the Company or other
good cause as reasonably determined by the Board of Directors; and (e) falseness
of  any  warranty  or  representation  by  you  herein  or the  breach  of  your
obligations under this Agreement to the material detriment of the Company.

                  2.4 In  the  event  of the  Involuntary  Termination  of  your
employment with the Company at any time, the Company hereby  irrevocably  agrees
to provide  you with  Severance  Benefits as defined in Section 7 of Exhibit "A"
hereto or payments in the event of a "Change in Control" as defined in Section 8
of Exhibit "A". In this regard, the phrase "Involuntary  Termination" shall mean
any  termination  of your  employment  by the Company other than for "cause," as
defined in Section  2.3,  any notice by the Company not to renew this  Agreement
pursuant to Section 2.1, or any termination of your employment by you due to any
of  the  following  circumstances:  (a) a  reduction  in  your  Base  Salary  or
Company-paid benefits, (b) a reduction in your eligibility for any Company bonus
or other benefit  program,  (c) a material or substantial  change in your title,
position,  authority  or  duties,  or (d) a change  of your  principal  place of
employment from Franklin,  Massachusetts to another location beyond  twenty-five
(25) miles of Franklin, Massachusetts.

                                       -2-





         3.  Compensation.  You shall receive the  compensation and benefits set
forth on Exhibit A hereto  ("Compensation")  for all  services to be rendered by
you hereunder and for your transfer of property  rights pursuant to an agreement
relating  to  proprietary  information  and  inventions  of even  date  herewith
attached hereto as Exhibit C between you and the Company (the "Proprietary Infor
mation  and  Inventions  Agreement").  Such  Compensation  shall be  subject  to
temporary  or  permanent  reduction by the Board of Directors if the Board shall
determine that economic conditions so warrant such as a significant reduction in
the Company's revenues or net worth.

         4.       Other Activities During Employment.

                  4.1  Except  for any  outside  employments  and  directorships
currently  held by you as listed on Exhibit B hereto,  and except with the prior
written  consent of the Company's  Board of  Directors,  you will not during the
term of this Agreement  undertake or engage in any other employment,  occupation
or business enterprise other than one in which you are an inactive investor.

                  4.2 You hereby  agree that,  except as  disclosed on Exhibit B
hereto, during your employment hereunder,  you will not, directly or indirectly,
engage  (a)  individually,  (b)  as an  officer,  (c) as a  director,  (d) as an
employee,  (e) as a consultant,  (f) as an advisor,  (g) as an agent  (whether a
salesperson or  otherwise),  (h) as a broker,  or (i) as a partner,  coventurer,
stockholder or other  proprietor  owning  directly or indirectly  more than five
percent (5%) interest in any firm, corporation, partnership, trust, association,
or other organization which is engaged in the development of heart laser systems
or any other line of business  engaged in or under  demonstrable  development by
the Company (such firm, corporation,  partnership,  trust, association, or other
organization being hereinafter referred to as a "Prohibited Enterprise"). Except
as may be shown on  Exhibit  B hereto,  you  hereby  represent  that you are not
engaged in any of the  foregoing  capacities  (a) through (i) in any  Prohibited
Enterprise.

         5.       Former Employers.

                  5.1 You  represent  and warrant  that your  employment  by the
Company  will not  conflict  with and will not be  constrained  by any  prior or
current  employment,  consulting  agreement  or  relationship  whether  oral  or
written.  You  represent  and  warrant  that  you  do not  possess  confidential
information  arising  out  of  any  such  employment,  consulting  agreement  or
relationship which, in your best judgment,  would be utilized in connection with
your employment by the Company in the absence of Section 5.2.

                  5.2 If, in spite of the second  sentence of Section  5.1,  you
should  find that  confidential  information  belonging  to any other  person or
entity might be usable in connection with the Company's  business,  you will not
intentionally  disclose  to the  Company  or use on  behalf of the  Company  any
confidential  information belonging to any of your former employers;  but during
your  employment by the Company you will use in the  performance  of your duties
all  information  which is generally known and used by persons with training and
experience  comparable to your own all information  which is common knowledge in
the industry or otherwise legally in the public domain.

                                                   
                                       -3-





         6.       Proprietary Information and Inventions.  You agree to execute,
deliver  and be bound  by the  provisions  of the  Proprietary  Information  and
Inventions Agreement.

         7.       Post-Employment Activities.

                  7.1 For a period of two (2) years  after  the  termination  or
expiration,  for any reason,  of your  employment  with the  Company  hereunder,
absent the Company's prior written approval, you will not directly or indirectly
engage in activities  similar or reasonably  related to those in which you shall
have engaged hereunder during the two years immediately preceding termination or
expiration for, nor render services similar or reasonably related to those which
you shall have rendered hereunder during such two years to, any person or entity
whether now existing or hereafter  established  which directly competes with (or
proposes or plans to directly compete with) the Company ("Direct Competitor") in
any line of business engaged in or under  development by the Company.  Nor shall
you entice,  induce or encourage any of the Company's  other employees to engage
in any activity  which,  were it done by you, would violate any provision of the
Proprietary  Information and Inventions  Agreement or this Section 7. As used in
this Section 7.1, the term "any line of business engaged in or under development
by the  Company"  shall  be  applied  as at the  date  of  termination  of  your
employment,  or, if later, as at the date of termination of any  post-employment
consultation.

                  7.2 For a period of two (2) years  after  the  termination  of
your  employment  with the  Company,  the  provisions  of  Section  4.2 shall be
applicable  to you and you shall comply  there with.  As applied to such two (2)
year post-employment  period, the term "any other line of business engaged in or
under  development  by the Company," as used in Section 4.2, shall be applied as
at the date of termination of your  employment with the Company or, if later, as
at the date of termination of any post-employment consultation with the Company.

                  7.3 No  provision  of this  Agreement  shall be  construed  to
preclude you from  performing the same services which the Company hereby retains
you to perform for any person or entity which is not a Direct  Competitor of the
Company  upon  the  expiration  or  termination  of  your   employment  (or  any
post-employment  consultation) so long as you do not thereby violate any term of
the Proprietary Information and Inventions Agreement.

         8. Remedies.  Your  obligations  under the Proprietary  Information and
Inventions  Agreement  and  the  provisions  of  Sections  6,7,8  and 9 of  this
Agreement  (as  modified  by  Section  10,  if  applicable)  shall  survive  the
expiration or termination of your employment  (whether  through your resignation
or otherwise)  with the Company.  You  acknowledge  that a remedy at law for any
breach  or  threatened  breach  by  you  of the  provisions  of the  Proprietary
Information  and  Inventions  Agreement or Section 7 would be inadequate and you
therefore agree that the Company shall be entitled to such injunctive  relief in
case of any such breach or threatened breach.

         The Company's  obligations  and those of any successors or assignees of
the Company  under this  Agreement,  including  but not limited to the severance
provisions and other compensation and


                                       -4-





benefits due to you  pursuant to Exhibit "A" hereto,  will be a condition of and
are to remain those of any successor or assignee.  The Company acknowledges that
a  remedy  at law for any  breach  or  threatened  breach  by the  Company,  its
directors  or agents of any of the  provisions  of Exhibit "A" hereto or of this
Agreement generally, or of any extension of this Agreement,  would be inadequate
and the Company therefore agrees that you shall be entitled to injunctive relief
in case of any such  breach or  threatened  breach.  In the event of any dispute
pursuant  to  this  Agreement,   the  prevailing  party  in  any  litigation  or
arbitration  shall be entitled to prompt  reimbursement of reasonable legal fees
and related expenses incurred in connection with such dispute.

         9.       Assignment.  This Agreement and the rights and  obligations of
the  parties  hereto  shall bind and inure to the  benefit of any  successor  or
successors of the Company by  reorganization,  merger or  consolidation  and any
assignee of all or substantially all of its business and properties, but, except
as to any such successor or assignee of the Company,  neither this Agreement nor
any rights or  benefits  hereunder  may be  assigned  by the  Company or by you,
except by operation of law.

         10.      Interpretation.  IT IS THE INTENT OF THE PARTIES  THAT in case
any one or more of the  provisions  contained in this Agreement  shall,  for any
reason,  be held to be invalid,  illegal or unenforceable  in any respect,  such
invalidity, illegality or unenforceability shall not affect the other provisions
of this  Agreement,  and this  Agreement  shall be construed as if such invalid,
illegal or unenforceable provision had never been contained herein. MOREOVER, IT
IS THE  INTENT  OF THE  PARTIES  THAT in case any one or more of the  provisions
contained in this Agreement shall for any reason be held to be excessively broad
as to duration, geographical scope, activity or subject, such provision shall be
construed  by limiting  and  reducing it as  determined  by a court of competent
jurisdiction,  so as to be enforceable to the extent  compatible with applicable
law.

         11.      Notices.  Any notice  which the  Company is required to or may
desire  to give you  shall  be  given by  personal  delivery  or  registered  or
certified mail,  return receipt  requested,  addressed to you at your address of
record  with the  Company,  or at such other  place as you may from time to time
designate in writing. Any notice which you are required or may desire to give to
the Company  hereunder  shall be given by personal  delivery or by registered or
certified  mail,  return  receipt  requested,  addressed  to the  Company at its
principal  office,  or at such other office as the Company may from time to time
designate in writing.  The date of personal  delivery or the date of mailing any
notice under this Section 11 shall be deemed to be the date of delivery thereof.

         12.      Waivers.  If  either  party  should  waive  any  breach of any
provision  of this  Agreement,  such party  shall not  thereby be deemed to have
waived any preceding or succeeding  breach of the same or any other provision of
this Agreement.

         13.      Complete  Agreement;   Amendments.   The  foregoing  including
Exhibits A, B and C hereto,  is the entire agreement of the parties with respect
to  the  subject  matter  hereof,  superseding  any  previous  oral  or  written
communications, representations,  understandings, or agreements with the Company
or any officer or  representative  thereof.  Any amendment to this  Agreement or
waiver

                                       -5-





by the Company of any right  hereunder shall be effective only if evidenced by a
written  instrument  executed by the parties hereto,  upon  authorization of the
Company's Board of Directors.

         14.      Headings. The headings of the Sections hereof are inserted for
convenience  only and shall not be deemed to  constitute  a part  hereof  nor to
affect the meaning of this Agreement.

         15.      Counterparts.   This   Agreement   may   be   signed   in  two
counterparts,  each of which shall be deemed an original and both of which shall
together constitute one agreement.

         16.      Governing  Law.  This  Agreement  shall  be  governed  by  and
construed under Massachusetts law.

         17.      Arbitration of Disputes.  Subject to the rights of the parties
to seek injunctive relief as described herein,  any controversy or claim arising
out of, or relating  to, any  provision  of this  Agreement  shall be settled by
binding  arbitration  in  accordance  with  the  laws  of  the  Commonwealth  of
Massachusetts  by  three  arbitrators,  one of whom  shall be  appointed  by the
Company,  one of whom shall be appointed by you,  and the third  arbitrator  who
shall be appointed by the first two  arbitrators.  If the first two  arbitrators
cannot agree on the appointment of a third arbitrator, then the third arbitrator
shall  be  appointed  by the  American  Arbitration  Association  in the City of
Boston.  Such arbitration shall be conducted in the City of Boston in accordance
with the rules of the American Arbitration  Association,  except with respect to
the  selection  of  arbitrators,  which shall be as  provided  in this  Section.
Judgment on the award  rendered by the  arbitrators  may be entered in any court
having jurisdiction thereof and shall not be appealable. The prevailing party in
such  arbitration  proceeding  shall be entitled to  reimbursement  by the other
party of all  reasonable  legal fees and other costs  incurred by the prevailing
party in  connection  with such  proceeding,  including any legal fees and costs
incurred in connection with the enforcement of any award.

         If you are in agreement with the foregoing, please sign your name below
and also at the bottom of the Proprietary  Information and Inventions Agreement,
whereupon  this  Agreement  shall become  binding in accordance  with its terms.
Please then  return  this  Agreement  to the  Company.  (You may retain for your
records the accompanying counterpart of this Agreement enclosed herewith).

                                                Very truly yours,

ACCEPTED AND AGREED:                            PLC SYSTEMS INC.



                                                By:
- --------------------------                        -----------------------------
Dr. Robert I. Rudko                                M. Lee Hibbs, President



                                       -6-





                                                                       EXHIBIT A

                   EMPLOYMENT TERM, COMPENSATION AND BENEFITS
                             OF DR. ROBERT I. RUDKO


l.       Term.  The term of the Agreement to which this Exhibit A is annexed and
         incorporated  shall  be for a period  from  the date of this  Agreement
         through December 31, 1997.

2.       Compensation.

                  (a) Base  Salary.  Your Base Salary shall be  $175,000.00  per
         annum  through  December  31,  1995,  payable  in  accordance  with the
         Company's  payroll  policies at the rate of $14,583.00  per month.  For
         Fiscal 1996 effective as of January 1, 1996,  your Base Salary shall be
         $192,500.00 per annum, payable in accordance with the Company's payroll
         policies at the rate of $16,041.66 per month.

                  (b)  Incentive  Sales and Placement  Plan.  During Fiscal Year
         1996, you shall receive incentive  compensation  based on the Company's
         sales or new placements  (under signed Heart Laser Usage Agreements) of
         the Heart Laser in Fiscal Year 1996 based on a percentage  of your Base
         Salary as follows:

                  Number of Lasers                           Bonus as a
                    Sold or Placed:                  Percentage of Base Salary:
                    ---------------                  --------------------------

Plan                       30                                    20%
- ----

Above Plan - linear 10% increase in bonus for each Heart laser sold or placed

                           32                                    24%
                           34                                    28%
                           36                                    32%
                           50 and above                     120% (maximum)
Below Plan
                           28                                     16%
                           26                                     12%
                           24                                      8%
                           Below 20                                0%

         All references to sales or placements are net of returns.

         Once the Company has achieved the minimum  sales and/or  placements  of
the Heart Laser  necessary to pay bonuses,  the Company shall pay bonuses within
30 days of the end of each fiscal

                                       A-1





quarter.  Any disputes regarding whether a laser has been sold or placed will be
determined by the  Corporation's  legal  counsel  taking into effect the binding
nature of the sales or  placement  contract.  In no event shall a  placement  be
deemed to have  occurred if the  Hospital or other  lessee of the Heart Laser is
not required to pay for a minimum  number of  procedures  in total and a minimum
number of procedures  in the first  calendar year of the placement as determined
by the Board of Directors.

                  (c) Stock Option Grant. In addition to other stock options now
         held by you,  you shall be  entitled  to  receive an  additional  stock
         option  grant,  in the form of the  grant  letters  attached  hereto as
         Exhibits  "A-1" and "A-2",  to receive a  combination  of incentive and
         non-qualified  stock  options to purchase up to an aggregate of 100,000
         shares of the Corporation's  Common Stock at an exercise price of $3.69
         per share (the fair  market  value as  described  in the  Corporation's
         Stock Option Plan).

3.        Vacation.  You shall be entitled to all legal and religious  holidays,
          and four weeks paid  vacation  per annum.  Any unused  vacation may be
          accrued or cashed in based on your then current Base Salary.

4.        Insurance and Benefits. You shall be eligible for participation in any
          health,   dental  and  other  group   insurance  plans  which  may  be
          established and maintained by the Company for all full- time employees
          or which the Company is required to maintain by law. The Company shall
          provide you with health  insurance  for you and your family  providing
          benefits at least equal to the benefits of the  policies  currently in
          place and shall  provide  you with group life  insurance  equal to two
          times your base salary. In addition,  the Company shall provide to you
          the right to receive such  benefits as you may  reasonably  determine,
          payable in each fiscal year,  in an amount up to 15% of your then base
          salary.

5.       [Intentionally left blank.]

6.        Retirement  Plan. You will be eligible to participate in the Company's
          401(k) Plan.

7.       Severance Benefits.

         (a) When  provided  for in this  Agreement,  you shall be  entitled  to
"Severance Benefits".  When used in this Agreement,  the term Severance Benefits
shall mean a total  amount  equal to (i) your then  current  annual Base Salary,
plus (ii) your  Incentive  Sales and  Placement  Plan Bonus and any other  Bonus
earned for the Company's most recent calendar year. If the Company's fiscal year
is changed,  the Incentive  Sales and  Placement  Bonus shall be based upon your
bonuses received during the Company's most recent fiscal year. This total amount
shall be paid to you in twelve (12) equal monthly installments commencing within
ten (10) days after the date of your  termination of active  employment with the
Company.

         (b) In  addition,  the term  "Severance  Benefits"  shall  include  the
continuation for you and your family,  during the Severance  Period,  as defined
below, of all of the other benefits which are


                                       A-2





provided or  available  to you on the last day of your actual  service  with the
Company, including your continued accrual and the vesting under the terms of any
pension or 401(k)  plan then  sponsored  by the  Company to the  maximum  extent
permitted by law. For purposes of this Agreement,  the term  "Severance  Period"
means the period of twelve (12) months  beginning on the last day of your active
service with the Company.

         (c) The lump sum payment  referred to above will be in addition to, and
not in  substitution  for,  any accrued and unpaid  salary,  vacation,  pension,
retirement or other benefits,  unreimbursed  expenses or other payments to which
you may be otherwise entitled.

         (d) In the event of your death while you are  employed by the  Company,
your  then  current  Base  Salary  shall  continue  to be  paid  to  your  legal
representative  for a period of 120 days  following the date of your death;  and
for a period of three (3) years following your death, the Company shall continue
to  provide  to your  spouse  at  Company  cost the  health  insurance  coverage
described above. If you die during the Severance Period,  all cash amounts which
would have been payable to you under this Exhibit "A", unless otherwise provided
for herein, shall be paid in accordance with the terms of this Agreement to your
estate.

         (e) You shall not be required to mitigate the amount of any payment the
Company becomes  obligated to make to you in connection with this Agreement,  by
seeking other employment or otherwise.

8.       Change in Control.

         (a)      For  purposes of this Agreement, "Change in Control" means and
shall be deemed to occur if any of the following occurs:

                  (i)  the   acquisition,   after  September  30,  1994,  by  an
         individual,  entity or group [within the meaning of Section 13(d)(3) or
         14(d)(2)  of the  Securities  Exchange  Act of  1934  as  amended  (the
         "Exchange  Act")] of beneficial  ownership  (within the meaning of Rule
         13d-3  promulgated under the Exchange Act) of 25% or more of either (A)
         the outstanding  shares of common stock,  par value $ .01 per share, of
         the Company (the "Common  Stock"),  or (B) the combined voting power of
         the voting  securities of the Company entitled to vote generally in the
         election of directors (the "Voting  Securities");  or (ii)  Individuals
         who, on September 30, 1994,  constituted  the Board of Directors of the
         Company (the  "Incumbent  Board") cease for any reason to constitute at
         least a majority of the Board of Directors  of the  Company;  provided,
         however,   that  any  individual  becoming  a  director  subsequent  to
         September 30, 1994 whose  election,  or nomination  for election by the
         Company's  shareholders,  was approved by a vote of at least a majority
         of the directors then serving and comprising the Incumbent  Board shall
         be considered as though such  individual were a member of the Incumbent
         Board,  but  excluding,  for this purpose,  any such  individual  whose
         initial  assumption of office occurs as a result of either an actual or
         threatened election


                                       A-3





         contest  (as such  terms  are used in Rule  14a-11  of  Regulation  14A
         promulgated  under the  Exchange  Act) or other  actual  or  threatened
         solicitation of proxies or consents;  or (iii) Approval by the Board of
         Directors or the  shareholders  of the Company of a (A) tender offer to
         acquire   any  of  the   Common   Stock  or  voting   securities,   (B)
         reorganization,   (C)  merger  or  (D)  consolidation,   other  than  a
         reorganization,  merger or  consolidation  with respect to which all or
         substantially  all  of  the  individuals  and  entities  who  were  the
         beneficial owners, immediately prior to such reorganization,  merger or
         consolidation,  of the Common Stock and voting securities  beneficially
         own,  directly or indirectly,  immediately  after such  reorganization,
         merger or consolidation,  more than 80% of the then outstanding  common
         stock and voting securities (entitled to vote generally in the election
         of directors) of the Company resulting from such reorganization, merger
         or  consolidation  in  substantially  the  same  proportions  as  their
         respective ownership, immediately prior to such reorganization,  merger
         or  consolidation,  of the Common Stock and the voting  securities;  or
         (iv)  Approval by the Board of  Directors  or the  shareholders  of the
         Company of (A) a complete or substantial  liquidation or dissolution of
         the  Company,   or  (B)  the  sale  or  other  disposition  of  all  or
         substantially   all  of  the  assets  of  the   Company,   excluding  a
         reorganization  of the Corporation  under the corporate laws of a state
         or province other than British Columbia.

         (b) In the  event  of a  Change  in  Control  during  the  term of this
Agreement  or any  extension  hereof and  provided  you remain  employed  by the
Company for a period of 12 months, you will receive, at the one-year anniversary
of the Change of Control,  a supplemental  amount in a lump sum equal to 150% of
your current Base Salary and Bonuses paid during the preceding  fiscal year, and
the fair  market  value of all other  benefits  then  payable,  irrespective  of
whether you thereafter actually terminate employment with the Company.

         (c)  In  the   event  of  your   actual   termination   of   employment
contemporaneous  with or  following a Change in  Control,  except (x) because of
your death,  (y) by the Company for Cause or Disability  (as each is hereinafter
defined) or (z) by you other than for Good Reason (as hereinafter defined):  (i)
you shall be entitled to receive, in lieu of the sums described in Section 7, an
amount equal to 299% of Severance  Benefits due  determined  as if payable under
Section 7 above, to be paid in accordance with the terms of this Agreement;  and
(ii) the following  additional  provisions  shall apply (which  provisions shall
supersede any other  provisions of the  Agreement,  including but not limited to
Section 2 of the Agreement,  to the extent such provisions are inconsistent with
the following provisions):

                  (1) Disability. For purposes of this Section 8(c), termination
by the Company of your employment  based on "Disability"  shall mean termination
because of your  absence  from your duties with the Company on a full time basis
for one hundred eighty (180) consecutive days as a result of your incapacity due
to physical or mental  illness,  unless  within thirty (30) days after Notice of
Termination (as hereinafter defined) is given to you following such absence, you
shall have returned to the full time performance of your duties.


                                       A-4





                  (2) Cause.  For purposes of this Section 8(c),  termination by
the Company of your  employment for "Cause" shall mean  termination for cause as
defined in Section 2.2(a).

                  (3) Good Reason.   Termination by  you of your  employment for
"Good Reason" shall mean termination based on:

                           (A)      a  determination  by you, in your reasonable
judgment,  that  there has been a  material  adverse  change  in your  status or
position(s)  as an  executive  officer of the  Company as in effect  immediately
prior to the  Change in  Control,  including,  without  limitation,  a  material
adverse  change in your status or position as a result of a  diminution  in your
duties or responsibilities (other than, if applicable,  any such change directly
attributable  to the fact that the Company is no longer  publicly  owned) or the
assignment to you of any duties or responsibilities  which are inconsistent with
such  status or  position(s),  or any  removal  of you from,  or any  failure to
reappoint or reelect you to, such  position(s)  (except in  connection  with the
termination  of your  employment  for Cause or Disability or as a result of your
death or by you other than for Good Reason) and further  provided  that you have
given the Company  notice of this  material  adverse  change and the Company has
failed to correct such material  adverse  change  within a reasonable  period of
time (but at least 14 days after written notice from you);

                           (B)      a  reduction  by the  Company  in your  Base
Salary as in effect immediately prior to the Change in Control;

                           (C)      the  failure by the  Company to  continue in
effect any Plan (as hereinafter  defined) in which you are  participating at the
time of the Change in Control of the  company  (or Plans  providing  you with at
least  substantially  similar  benefits)  other  than as a result of the  normal
expiration  of any such  Plan in  accordance  with its terms as in effect at the
time of the Change in Control,  or the taking of any  action,  or the failure to
act, by the Company which would adversely affect your continued participation in
any of such Plans on at least as  favorable a basis to you as is the case on the
date of the Change in Control or which would materially  reduce your benefits in
the  future  under any of such  Plans or  deprive  you of any  material  benefit
enjoyed by you at the time of the Change in Control;

                           (D)      the  failure by the  Company to provide  and
credit you with the number of paid  vacation days to which you are then entitled
in accordance with the Company's normal vacation policy as in effect immediately
prior to the Change in Control;

                           (E)      the  Company's  requiring you to be based at
any office that is greater than twenty-five (25) miles from where your office is
located immediately prior to the Change in Control except for required travel on
the Company's business to an extent  substantially  consistent with the business
travel  obligations  which you  undertook on behalf of the Company  prior to the
Change in Control;


                                       A-5





                           (F)      the  failure by the  Company to obtain  from
any Successor (as hereinafter defined) the assent to this Agreement contemplated
by Section 8(c)(7) hereof;

                           (G)      any purported  termination by the Company of
your  employment  which is not  effected  pursuant  to a Notice  of  Termination
satisfying  the  requirements  of Section  (8)(c)(4)  below (and, if applicable,
Section  8(c)(2) above);  and for purposes of this Agreement,  no such purported
termination shall be effective; or

                           (H)      any  refusal by the  Company to  continue to
allow you to attend to matters or engage in activities  not directly  related to
the  business of the  Company  which,  prior to the Change in Control,  you were
permitted by the Board to attend to or engage in.

         For purposes of this Agreement, "Plan" shall mean any compensation plan
or any employee benefit plan such as a thrift, pension, profit sharing, medical,
disability,  accident, life insurance plan or a relocation plan or policy or any
other plan, program or policy of the Company intended to benefit employees.

                  (4) Notice of  Termination.  Any purported  termination by the
Company or by you following a Change in Control shall be communicated by written
notice to the other  party  hereto  which  indicates  the  specific  termination
provision in this Agreement relied upon (the "Notice of Termination").

                  (5) Date of  Termination.  "Date of  Termination"  following a
Change in Control  shall mean (A) if your  employment  is to be  terminated  for
Disability, thirty (30) days after Notice of Termination is given (provided that
you shall not have  returned  to the  performance  of your duties on a full-time
basis  during such  thirty (30) day  period),  (B) if your  employment  is to be
terminated  by the Company for any reason other than death or  Disability  or by
you  pursuant to  Sections  8(c)(3)(F)  or 8(c)(7)  hereof or for any other Good
Reason,  the  date  specified  in the  Notice  of  Termination,  or (C) if  your
employment is terminated on account of your death,  the day after your death. In
the case of termination of your  employment by the Company for Cause pursuant to
Subsection  8(c)(2)  hereof,  if you have not  previously  expressly  agreed  in
writing to the termination, then within thirty (30) days after receipt by you of
the Notice of Termination with respect thereto,  you may notify the Company that
a  dispute  exists  concerning  the  Termination,  in  which  event  the Date of
Termination  shall be the date set  either by mutual  written  agreement  of the
parties or by such court having the matter before it. During the pendency of any
such  dispute,  the Company will continue to pay you your full  compensation  in
effect just prior to the time the Notice of  Termination  is given and until the
dispute is resolved.  However,  if such court issues a final and  non-appealable
order finding that the Company had Cause to terminate  you, then you must return
all  compensation  paid to you after the Date of  Termination  specified  in the
Notice of Termination previously received by you.

                  (6)  Compensation Upon Termination or During Disability; Other
 Agreements.


                                       A-6





                  (A)  During any  period  following  a Change in Control of the
Company  that you fail to perform your duties as a result of  incapacity  due to
physical or mental  illness,  you shall  continue to receive your Base Salary at
the rate then in effect and any benefits or awards under any Plan shall continue
to accrue during such period,  to the extent not  inconsistent  with such Plans,
until and unless your  employment  is  terminated  pursuant to and in accordance
with this  Section  8(c).  Thereafter,  your  benefits  shall be  determined  in
accordance with the Plans then in effect.

                  (B) If your  employment  is terminated  for Cause  following a
Change in Control of the Company,  the Company shall pay to you your Base Salary
through the Date of  Termination  at the rate in effect just prior to the time a
Notice of Termination is given plus any benefits or awards  (including  both the
cash and stock  components)  which  pursuant to the terms of any Plans have been
earned or become payable, but which have not yet been paid to you. Thereupon the
Company shall have no further obligations to you under this Agreement.

                  (7)      Successors, Binding Agreement.

                  (A) The Company  will seek,  by written  request at least five
(5) business days prior to the time a Person becomes a Successor (as hereinafter
defined),  to have such Person, by agreement in form and substance  satisfactory
to you,  assent to the  fulfillment  of the  Company's  obligations  under  this
Agreement.  Failure of such  Person to furnish  such  assent by the later of (i)
three (3)  business  days prior to the time such Person  becomes a Successor  or
(ii) two (2) business  days after such Person  receives a written  request to so
assent shall constitute Good Reason for termination by you of your employment if
a Change in Control of the Company occurs or has occurred.  For purposes of this
Section 8 of Exhibit "A," "Successor" shall mean any person that succeeds to, or
has the practical ability to control (either  immediately or with the passage of
time),  the  Company's  business  directly,  by  merger  or  consolidation,   or
indirectly,  by purchase of the  Company's  securities  eligible to vote for the
election of directors, or otherwise.

                  (B)  This  Agreement  shall  inure  to the  benefit  of and be
enforceable by your personal legal representatives,  executors,  administrators,
successors, heirs, distributees,  devisees and legatees. If you should die while
any amount would still be payable to you hereunder if you had continued to live,
all such amounts,  unless otherwise provided herein, shall be paid in accordance
with the terms of this Agreement to your devisee,  legatee or other designee or,
if no such designee exists, to your estate.

                  (C) For  purposes  of this  Section  8,  the  "Company"  shall
include any  subsidiaries  of the Company and any  corporation  or other  entity
which  is  the  surviving  or  continuing  entity  in  respect  of  any  merger,
consolidation  or form of business  combination  in which the Company  ceases to
exist;  provided,  however,  for  purposes  of  determining  whether a Change in
Control has occurred herein, the term "Company" shall refer to PLC Systems, Inc.
or its Successor(s).

                  (8) Fees and Expenses; Mitigation.



                                       A-7





                  (A) The Company shall  reimburse you, on a current basis,  for
all  reasonable  legal fees and related  expenses  incurred by you in connection
with the  Agreement  following  a Change in  Control of the  Company,  including
without  limitation,  (i) all  such  fees  and  expenses,  if any,  incurred  in
contesting or disputing any  termination of your employment or (ii) your seeking
to obtain or enforce any right or benefit  provided by this  Agreement,  in each
case,  regardless of whether or not your claim is upheld by a court of competent
jurisdiction; provided, however, you shall be required to repay any such amounts
to the  Company to the  extent  that a court  issues a final and  non-appealable
order  setting  forth  the  determination  that  the  position  taken by you was
frivolous or advanced by you in bad faith.

                  (B) You shall not be required  to  mitigate  the amount of any
payment the Company  becomes  obligated to make to you in  connection  with this
Agreement, by seeking other employment or otherwise.

                  (9) Taxes. All payments to be made to you under this Agreement
will be subject to required  withholding of federal,  state and local income and
employment taxes.

                  (d) Notwithstanding any other provision of this Agreement,  in
the event that any  payment of benefit  received  or to be  received by you as a
result of or in  connection  with a Change in Control,  whether  pursuant to the
terms of this  Agreement or any other plan,  arrangement  or agreement  with the
Company  (all such  payment and  benefits  being  hereinafter  called the "Total
Payments")  would subject you to the excise tax (the "Excise Tax") imposed under
Section 4999 of the  Internal  Revenue  Code of 1986,  as amended (the  "Code"),
then, to the extent necessary to eliminate any such imposition of the Excise Tax
(after  taking into account any  reduction in the Total  Payments in  accordance
with the provisions of any other plan,  arrangement  or agreement,  if any), (a)
any non-cash  severance payments otherwise payable to you shall first be reduced
(if necessary, to zero), and (b) any cash severance payment otherwise payable to
you shall next be reduced.  For purposes of the immediately  preceding sentence,
(i) no portion of the Total Payments the receipt or enjoyment of which you shall
have effectively waived in writing shall be taken into account,  (ii) no portion
of the  Total  Payment  shall be taken  into  account  which in the  opinion  of
nationally-recognized  certified  public  accountants  (in each case as mutually
selected by you and the  Company)  does not  constitute  a  "parachute  payment"
within the meaning of Section 280G of the Code,  including,  without limitation,
by reason of Section  280G(b)(2) or (b)(4)(A) of the Code, (iii) any payments to
you shall be reduced  only to the extent  necessary  so that the Total  Payments
[other  than  those  referred  to in  clauses  (i) and  (ii)] in their  entirety
constitute  reasonable  compensation for services  actually  rendered within the
meaning  of  section  280G(4)(B)  of the Code or are  otherwise  not  subject to
disallowance as deductions, in the opinion of the tax counsel or the accountants
referred to in clause (ii);  and (iv) the value of any  non-cash  benefit or any
deferred  payment or benefit  included in the Total Payments shall be determined
by such  accountants in accordance with the  requirements of section  280G(d)(3)
and (4) of the  Code  (and  such  determination  shall be  reviewed  by such tax
counsel).


                                       A-8





                                                                       EXHIBIT B



                    OUTSIDE EMPLOYMENTS AND DIRECTORSHIPS OF

                               DR. ROBERT I. RUDKO



                                      None







                                       B-1





                                                                       EXHIBIT C



                      ____________________________________

                PROPRIETARY INFORMATION AND INVENTIONS AGREEMENT
                      ____________________________________



To:      PLC Systems Inc.                                As of September 8, 1994
         113 Cedar Street, Suite S-2 
         Milford, Massachusetts  01757


         The  undersigned,  in  consideration  of  and  as  a  condition  of  my
employment  or continued  employment  by you and/or by companies  which you own,
control,  or are affiliated with or their successors in business  (collectively,
the "Company"), hereby agrees as follows:

         1. Confidentiality. I agree to keep confidential, except as the Company
may otherwise consent in writing,  and, except for the Company's benefit, not to
disclose  or make any use of at any  time  either  during  or  subsequent  to my
employment, any Inventions (as hereinafter defined), trade secrets, confidential
information,  knowledge,  data or other  information of the Company  relating to
products,  processes,  know-how,  designs,  formulas, test data, customer lists,
business plans,  marketing plans and strategies,  pricing  strategies,  or other
subject  matter  pertaining  to  any  business  of  the  Company  or  any of its
affiliates,  which I may produce, obtain, or otherwise acquire during the course
of my  employment,  except as herein  provided.  I further agree not to deliver,
reproduce or in any way allow any such trade secrets,  confidential information,
knowledge, data or other information,  or any documentation relating thereto, to
be  delivered  to or used by any third  parties  without  specific  direction or
consent of a duly authorized representative of the Company.

          2. Conflicting  Employment;  Return of Confidential  Material. I agree
that  during  my  employment  with the  Company  I will not  engage in any other
employment, occupation, consulting or other activity relating to the business in
which  the  Company  is now or may  hereafter  become  engaged,  or which  would
otherwise  conflict  with  my  obligations  to  the  Company.  In the  event  my
employment  with the Company  terminates for any reason  whatsoever,  I agree to
promptly surrender and deliver to the Company all records, materials, equipment,
drawings,  documents and data of which I may obtain or produce during the course
of my  employment,  and I will not take with me any  description  containing  or
pertaining  to any  confidential  information,  knowledge or data of the Company
which I may produce or obtain during the course of my employment.

         3.  Assignment of Inventions.


                                       C-1





                  3.1 I hereby  acknowledge  and agree  that the  Company is the
owner of all  Inventions.  In order to  protect  the  Company's  rights  to such
Inventions,  by  executing  this  Agreement I hereby  irrevocably  assign to the
Company  all my  right,  title  and  interest  in and to all  Inventions  to the
Company.

                  3.2 For purposes of this  Agreement,  "Inventions"  shall mean
all discoveries,  processes, designs, technologies,  devices, or improvements in
any of the foregoing or other ideas,  whether or not  patentable  and whether or
not reduced to practice, made or conceived by me (whether solely or jointly with
others) during the period of my employment  with the Company which relate in any
manner to the actual or demonstrably anticipated business, work, or research and
development of the Company, or result from or are suggested by any task assigned
to me or any work performed by me for or on behalf of the Company.

                   3.3 Any discovery,  process, design,  technology,  device, or
improvement  in any of the foregoing or other ideas,  whether or not  patentable
and whether or not reduced to practice,  made or conceived by me (whether solely
or jointly with others) which I develop entirely on my own time not using any of
the  Company's  equipment,  supplies,  facilities,  or trade secret  information
("Personal  Invention") is excluded from this  Agreement  provided such Personal
Invention  (a)  does  not  relate  to the  actual  or  demonstrably  anticipated
business,  research and  development  of the  Company,  and (b) does not result,
directly or indirectly, from any work performed by me for the Company.

         4.       Disclosure of Inventions.  I agree that in connection with any
Invention,  I will promptly disclose such Invention to my immediate  superior at
the  Company in order to permit the Company to enforce  its  property  rights to
such  Invention  in  accordance  with this  Agreement.  My  disclosure  shall be
received in confidence by the Company.

         5.       Patents and Copyrights; Execution of Documents.

                  5.1 Upon request, I agree to assist the Company or its nominee
(at its expense)  during and at any time  subsequent  to my  employment in every
reasonable  way to  obtain  for its  own  benefit  patents  and  copyrights  for
Inventions in any and all countries.  Such patents and  copyrights  shall be and
remain the sole and exclusive property of the Company or its nominee. I agree to
perform  such lawful acts as the Company  deems to be  necessary  to allow it to
exercise all right, title and interest in and to such patents and copyrights.

                   5.2 In connection  with this  Agreement,  I agree to execute,
acknowledge  and deliver to the Company or its nominee  upon  request and at its
expense all  documents,  including  assignments  of title,  patent or  copyright
applications,  assignments  of such  applications,  assignments  of  patents  or
copyrights upon issuance, as the Company may determine necessary or desirable to
protect the Company's or its nominee's interest in Inventions,  and/or to use in
obtaining  patents  or  copyrights  in any and all  countries  and to vest title
thereto in the Company or its nominee to any of the foregoing.


                                       C-2





          6.      Maintenance of Records.  I agree to keep and maintain adequate
and current  written records of all Inventions made by me (in the form of notes,
sketches,  drawings and other records as may be specified by the Company), which
records shall be available to and remain the sole property of the Company at all
times.

         7.       Prior   Inventions.   It  is  understood   that  all  Personal
Inventions,  if any,  whether  patented or unpatented,  which I made prior to my
employment  by the Company,  are excluded from this  Agreement.  To preclude any
possible uncertainty,  I have set forth on Schedule A attached hereto a complete
list of all of my prior Personal  Inventions,  including  numbers of all patents
and patent  applications  and a brief  description  of all  unpatented  Personal
Inventions  which are not the property of a previous  employer.  I represent and
covenant that the list is complete and that, if no items are on the list, I have
no such prior  Personal  Inventions.  I agree to notify  the  Company in writing
before I make any  disclosure or perform any work on behalf of the Company which
appears to threaten or conflict with proprietary  rights I claim in any Personal
Invention.  In the event of my failure to give such notice,  I agree that I will
make no claim against the Company with respect to any such Personal Invention.

         8.       Other Obligations. I acknowledge that the Company from time to
time may have  agreements  with  other  persons or with the U.S.  Government  or
agencies  thereof,  which  impose  obligations  or  restrictions  on the Company
regarding  Inventions made during the course of work thereunder or regarding the
confidential  nature of such work.  I agree to be bound by all such  obligations
and  restrictions  and to take all action  necessary to discharge  the Company's
obligations.

         9.       Trade Secrets of Others.  I represent  that my  performance of
all the terms of this  Agreement  and as an employee of the Company does not and
will not breach any  agreement  to keep  confidential  proprietary  information,
knowledge  or  data  acquired  by  me in  confidence  or in  trust  prior  to my
employment with the Company,  and I will not disclose to the Company,  or induce
the Company to use, any  confidential  or  proprietary  information  or material
belonging  to any  previous  employer  or others.  I agree not to enter into any
agreement either written or oral in conflict herewith.

         10.      Modification. I agree that any subsequent change or changes in
my  employment  duties,  salary  or  compensation  or,  if  applicable,  in  any
Employment  Agreement  between the Company and me, shall not affect the validity
or scope of this Agreement.

         11.      Successors and Assigns.  This Agreement  shall be binding upon
my heirs,  executors,  administrators or other legal  representatives and is for
the benefit of the Company, its successors and assigns.

         12.      Interpretation.  IT IS THE INTENT OF THE PARTIES  THAT in case
any one or more of the  provisions  contained in this Agreement  shall,  for any
reason,  be held to be invalid,  illegal or unenforceable  in any respect,  such
invalidity, illegality or unenforceability shall not affect the other provisions
of this  Agreement,  and this  Agreement  shall be construed as if such invalid,
illegal or unenforceable provision had never been contained herein. MOREOVER, IT
IS THE


                                       C-3





INTENT OF THE PARTIES THAT in case any one or more of the  provisions  contained
in this  Agreement  shall for any reason be held to be  excessively  broad as to
duration,  geographical  scope,  activity or subject,  such  provision  shall be
construed by limiting and reducing it in  accordance  with a judgment of a court
of competent jurisdiction, so as to be enforceable to the extent compatible with
applicable law.

         13.      Waivers.  If  either  party  should  waive  any  breach of any
provision of this Agreement, he or it shall not thereby be deemed to have waived
any  preceding or succeeding  breach of the same or any other  provision of this
Agreement.

         14.      Complete Agreement,  Amendments. I acknowledge receipt of this
Agreement,  and agree that with respect to the subject  matter  thereof it is my
entire  agreement  with the Company,  superseding  any previous  oral or written
communications, representations,  understandings, or agreements with the Company
or any officer or  representative  thereof.  Any amendment to this  Agreement or
waiver  by  either  party of any  right  hereunder  shall be  effective  only if
evidenced by a written  instrument  executed by the parties hereto,  and, in the
case of the  Company,  upon  written  authorization  of the  Company's  Board of
Directors.

         15.      Headings. The headings of the sections hereof are inserted for
convenience  only and shall not be deemed to  constitute  a part  hereof  nor to
affect the meaning thereof.

         16.      Counterparts.   This   Agreement   may   be   signed   in  two
counterparts,  each of which shall be deemed an original and both of which shall
together constitute one agreement.

         17.      Governing Law. This Agreement  shall be governed and construed
under Massachusetts law.

         18       Employment  Status.  Nothing in this Agreement shall affect in
any  manner  whatsoever  the  right or power of the  Company  to  terminate  the
employment of the Employee.

                                                   EMPLOYEE


                                                   ----------------------------
                                                   Dr. Robert I. Rudko
Accepted and Agreed:
PLC SYSTEMS INC.


By:
   --------------------------   
   M. Lee Hibbs, President

                                       
                                      C-4




                                                                      SCHEDULE A


                            LIST OF PRIOR INVENTIONS


                           Identifying Number of
Title       Date             Brief Description
- -----       ----             -----------------

NONE










                                 _______________
  
                                     AMENDED
                             KEY EMPLOYEE AGREEMENT
                                 _______________
  



         To: Max L. Hibbs                                As of September 8, 1994
             88 Nason Hill Road                    and Amended on August 1, 1996
             Sherborn, Massachusetts  01770


         The  undersigned,  PLC Systems  Inc., a British  Columbia  corporation,
which together with its  wholly-owned  subsidiary,  Laser  Engineering,  Inc., a
Delaware  corporation,  as  well  as its  successors  and  assigns  (hereinafter
collectively referred to as the "Company"), hereby agree with you as follows:

         l.       Position and Responsibilities.

                  1.1 You shall serve as President and Chief  Executive  Officer
of the Company (or in such other  executive  capacity as shall be  designated by
the Board of Directors and  reasonably  acceptable to you) and shall perform the
duties  customarily  associated with such capacity from time to time and at such
place or places as the Company shall  designate are appropriate and necessary in
connection  with  such  employment;  provided,  however,  that you  shall not be
required to relocate  your place of employment  beyond a  twenty-five  (25) mile
radius from Franklin, Massachusetts without your prior written consent.

                  1.2 You will,  to the best of your  ability,  devote your full
time and best  efforts  to the  performance  of your  duties  hereunder  and the
business and affairs of the Company.  You agree to perform such executive duties
as may be assigned to you by or on authority of the Company's Board of Directors
from time to time.

                  1.3 You will  duly,  punctually  and  faithfully  perform  and
observe  any and all rules and  regulations  which the  Company may now or shall
hereafter establish governing the conduct of its business.

                  1.4 You will report directly to the Company's Board of 
Directors.

         2.       Term of Employment.

                  2.1 The initial term of this Agreement shall be for the period
of years  set forth on  Exhibit  "A"  annexed  hereto  commencing  with the date
hereof. Thereafter, this Agreement shall be automatically renewed for successive
periods of one year,  unless you or the  Company  shall give the other party not
less than three (3) months written notice of  non-renewal.  Your employment with
the  Company may be  terminated  at any time as provided in Section 2.2 . If the
Company gives you
                                                                          

                                      




notice of non-renewal or  termination,  the Company shall be obligated to pay to
you as  Severance  Benefits  an  amount  set  forth in  Sections  7 and/or 8 (as
applicable) of Exhibit "A" hereto, plus payment in full of any amounts otherwise
due you, less applicable  taxes and other required  withholdings and any amounts
you may owe to the Company.

                  2.2 The Company shall have the right,on written notice to you,
to terminate your employment:

                           (a)immediately  at any  time for "Cause" (as  defined
         herein  subject to your right of cure and right to dispute as  provided
         in Section 2.3 herein); or

                           (b) at any time,  upon not less  than  seven (7) days
         written notice, without "Cause" provided the Company shall be obligated
         to pay to you as  Severance  Benefits  an amount  equal to the sums set
         forth in Sections 7 or 8, as applicable,  of Exhibit "A," plus any sums
         then  due  to  you,  less  (i)  applicable  taxes  and  other  required
         withholdings, and (ii) any amounts you may owe to the Company. Payments
         under  this  Section  2.2 (b)  shall not be due or  payable  if you are
         terminated  at any time for "Cause" or if you  voluntarily  resign from
         your employment except as set forth in Section 8 of Exhibit "A."

                  2.3 For purposes of Section  2.2, the term "Cause"  shall mean
(a) gross  negligence  in the  performance  of assigned  duties;  (b) refusal to
perform or  discharge  the duties or  responsibilities  assigned by the Board of
Directors  of PLC Systems Inc.  provided the same are not illegal,  unethical or
inconsistent  with the position of Chief Executive  Officer of a corporation and
the failure to correct such refusal and perform such duties or  responsibilities
within a reasonable  period of time (but in any event no less than two weeks (14
calendar days) after written notice of such failure); (c) conviction of a felony
involving  moral  turpitude;  (d)  willful or  prolonged  absence  from work not
excused  by a  bona  fide  medical  disability  as  reasonably  determined  by a
qualified  physician  mutually  acceptable  to both you and the Company or other
good cause as reasonably determined by the Board of Directors; and (e) falseness
of  any  warranty  or  representation  by  you  herein  or the  breach  of  your
obligations under this Agreement to the material detriment of the Company.

                  2.4 In  the  event  of the  Involuntary  Termination  of  your
employment with the Company at any time, the Company hereby  irrevocably  agrees
to provide  you with  Severance  Benefits as defined in Section 7 of Exhibit "A"
hereto or payments in the event of a "Change in Control" as defined in Section 8
of Exhibit "A". In this regard, the phrase "Involuntary  Termination" shall mean
any  termination  of your  employment  by the Company other than for "cause," as
defined in Section  2.3,  any notice by the Company not to renew this  Agreement
pursuant to Section 2.1, or any termination of your employment by you due to any
of  the  following  circumstances:  (a) a  reduction  in  your  Base  Salary  or
Company-paid benefits, (b) a reduction in your eligibility for any Company bonus
or other benefit  program,  (c) a material or substantial  change in your title,
position,  authority  or  duties,  or (d) a change  of your  principal  place of
employment from Franklin,  Massachusetts to another location beyond  twenty-five
(25) miles of Franklin, Massachusetts.


                                      -2-


         3.  Compensation.  You shall receive the  compensation and benefits set
forth on Exhibit A hereto  ("Compensation")  for all  services to be rendered by
you hereunder and for your transfer of property  rights pursuant to an agreement
relating  to  proprietary  information  and  inventions  of even  date  herewith
attached hereto as Exhibit C between you and the Company (the "Proprietary Infor
mation  and  Inventions  Agreement").  Such  Compensation  shall be  subject  to
temporary  or  permanent  reduction by the Board of Directors if the Board shall
determine that economic conditions so warrant such as a significant reduction in
the Company's revenues or net worth.

         4.       Other Activities During Employment.

                  4.1  Except  for any  outside  employments  and  directorships
currently  held by you as listed on Exhibit B hereto,  and except with the prior
written  consent of the Company's  Board of  Directors,  you will not during the
term of this Agreement  undertake or engage in any other employment,  occupation
or business enterprise other than one in which you are an inactive investor.

                  4.2 You hereby  agree that,  except as  disclosed on Exhibit B
hereto, during your employment hereunder,  you will not, directly or indirectly,
engage  (a)  individually,  (b)  as an  officer,  (c) as a  director,  (d) as an
employee,  (e) as a consultant,  (f) as an advisor,  (g) as an agent  (whether a
salesperson or  otherwise),  (h) as a broker,  or (i) as a partner,  coventurer,
stockholder or other  proprietor  owning  directly or indirectly  more than five
percent (5%) interest in any firm, corporation, partnership, trust, association,
or other organization which is engaged in the development of heart laser systems
or any other line of business  engaged in or under  demonstrable  development by
the Company (such firm, corporation,  partnership,  trust, association, or other
organization being hereinafter referred to as a "Prohibited Enterprise"). Except
as may be shown on  Exhibit  B hereto,  you  hereby  represent  that you are not
engaged in any of the  foregoing  capacities  (a) through (i) in any  Prohibited
Enterprise.

         5.       Former Employers.

                  5.1 You  represent  and warrant  that your  employment  by the
Company  will not  conflict  with and will not be  constrained  by any  prior or
current  employment,  consulting  agreement  or  relationship  whether  oral  or
written.  You  represent  and  warrant  that  you  do not  possess  confidential
information  arising  out  of  any  such  employment,  consulting  agreement  or
relationship which, in your best judgment,  would be utilized in connection with
your employment by the Company in the absence of Section 5.2.

                  5.2 If, in spite of the second  sentence of Section  5.1,  you
should  find that  confidential  information  belonging  to any other  person or
entity might be usable in connection with the Company's  business,  you will not
intentionally  disclose  to the  Company  or use on  behalf of the  Company  any
confidential  information belonging to any of your former employers;  but during
your  employment by the Company you will use in the  performance  of your duties
all  information  which is generally known and used by persons with training and
experience  comparable to your own all information  which is common knowledge in
the industry or otherwise legally in the public domain.


                                       -3-





         6.  Proprietary  Information  and  Inventions.  You  agree to  execute,
deliver  and be bound  by the  provisions  of the  Proprietary  Information  and
Inventions Agreement.

         7.       Post-Employment Activities.

                  7.1 For a period of two (2) years  after  the  termination  or
expiration,  for any reason,  of your  employment  with the  Company  hereunder,
absent the Company's prior written approval, you will not directly or indirectly
engage in activities  similar or reasonably  related to those in which you shall
have engaged hereunder during the two years immediately preceding termination or
expiration for, nor render services similar or reasonably related to those which
you shall have rendered hereunder during such two years to, any person or entity
whether now existing or hereafter  established  which directly competes with (or
proposes or plans to directly compete with) the Company ("Direct Competitor") in
any line of business engaged in or under  development by the Company.  Nor shall
you entice,  induce or encourage any of the Company's  other employees to engage
in any activity  which,  were it done by you, would violate any provision of the
Proprietary  Information and Inventions  Agreement or this Section 7. As used in
this Section 7.1, the term "any line of business engaged in or under development
by the  Company"  shall  be  applied  as at the  date  of  termination  of  your
employment,  or, if later, as at the date of termination of any  post-employment
consultation.

                  7.2 For a period of two (2) years  after  the  termination  of
your  employment  with the  Company,  the  provisions  of  Section  4.2 shall be
applicable  to you and you shall comply  there with.  As applied to such two (2)
year post-employment  period, the term "any other line of business engaged in or
under  development  by the Company," as used in Section 4.2, shall be applied as
at the date of termination of your  employment with the Company or, if later, as
at the date of termination of any post-employment consultation with the Company.

                  7.3 No  provision  of this  Agreement  shall be  construed  to
preclude you from  performing the same services which the Company hereby retains
you to perform for any person or entity which is not a Direct  Competitor of the
Company  upon  the  expiration  or  termination  of  your   employment  (or  any
post-employment  consultation) so long as you do not thereby violate any term of
the Proprietary Information and Inventions Agreement.

         8.       Remedies.  Your obligations under the Proprietary  Information
and  Inventions  Agreement and the  provisions  of Sections  6,7,8 and 9 of this
Agreement  (as  modified  by  Section  10,  if  applicable)  shall  survive  the
expiration or termination of your employment  (whether  through your resignation
or otherwise)  with the Company.  You  acknowledge  that a remedy at law for any
breach  or  threatened  breach  by  you  of the  provisions  of the  Proprietary
Information  and  Inventions  Agreement or Section 7 would be inadequate and you
therefore agree that the Company shall be entitled to such injunctive  relief in
case of any such breach or threatened breach.

         The Company's  obligations  and those of any successors or assignees of
the Company  under this  Agreement,  including  but not limited to the severance
provisions and other compensation and


                                       -4-





benefits due to you  pursuant to Exhibit "A" hereto,  will be a condition of and
are to remain those of any successor or assignee.  The Company acknowledges that
a  remedy  at law for any  breach  or  threatened  breach  by the  Company,  its
directors  or agents of any of the  provisions  of Exhibit "A" hereto or of this
Agreement generally, or of any extension of this Agreement,  would be inadequate
and the Company therefore agrees that you shall be entitled to injunctive relief
in case of any such  breach or  threatened  breach.  In the event of any dispute
pursuant  to  this  Agreement,   the  prevailing  party  in  any  litigation  or
arbitration  shall be entitled to prompt  reimbursement of reasonable legal fees
and related expenses incurred in connection with such dispute.

         9.       Assignment.  This Agreement and the rights and  obligations of
the  parties  hereto  shall bind and inure to the  benefit of any  successor  or
successors of the Company by  reorganization,  merger or  consolidation  and any
assignee of all or substantially all of its business and properties, but, except
as to any such successor or assignee of the Company,  neither this Agreement nor
any rights or  benefits  hereunder  may be  assigned  by the  Company or by you,
except by operation of law.

         10.      Interpretation.  IT IS THE INTENT OF THE PARTIES  THAT in case
any one or more of the  provisions  contained in this Agreement  shall,  for any
reason,  be held to be invalid,  illegal or unenforceable  in any respect,  such
invalidity, illegality or unenforceability shall not affect the other provisions
of this  Agreement,  and this  Agreement  shall be construed as if such invalid,
illegal or unenforceable provision had never been contained herein. MOREOVER, IT
IS THE  INTENT  OF THE  PARTIES  THAT in case any one or more of the  provisions
contained in this Agreement shall for any reason be held to be excessively broad
as to duration, geographical scope, activity or subject, such provision shall be
construed  by limiting  and  reducing it as  determined  by a court of competent
jurisdiction,  so as to be enforceable to the extent  compatible with applicable
law.

         11.      Notices.  Any notice  which the  Company is required to or may
desire  to give you  shall  be  given by  personal  delivery  or  registered  or
certified mail,  return receipt  requested,  addressed to you at your address of
record  with the  Company,  or at such other  place as you may from time to time
designate in writing. Any notice which you are required or may desire to give to
the Company  hereunder  shall be given by personal  delivery or by registered or
certified  mail,  return  receipt  requested,  addressed  to the  Company at its
principal  office,  or at such other office as the Company may from time to time
designate in writing.  The date of personal  delivery or the date of mailing any
notice under this Section 11 shall be deemed to be the date of delivery thereof.

         12.      Waivers.  If  either  party  should  waive  any  breach of any
provision  of this  Agreement,  such party  shall not  thereby be deemed to have
waived any preceding or succeeding  breach of the same or any other provision of
this Agreement.

         13.      Complete  Agreement;   Amendments.   The  foregoing  including
Exhibits A, B and C hereto,  is the entire agreement of the parties with respect
to  the  subject  matter  hereof,  superseding  any  previous  oral  or  written
communications, representations,  understandings, or agreements with the Company
or any officer or  representative  thereof.  Any amendment to this  Agreement or
waiver

                                       -5-





by the Company of any right  hereunder shall be effective only if evidenced by a
written  instrument  executed by the parties hereto,  upon  authorization of the
Company's Board of Directors.

         14.      Headings. The headings of the Sections hereof are inserted for
convenience  only and shall not be deemed to  constitute  a part  hereof  nor to
affect the meaning of this Agreement.

         15.      Counterparts.   This   Agreement   may   be   signed   in  two
counterparts,  each of which shall be deemed an original and both of which shall
together constitute one agreement.

         16.      Governing  Law.  This  Agreement  shall  be  governed  by  and
construed under Massachusetts law.

         17.      Arbitration of Disputes.  Subject to the rights of the parties
to seek injunctive relief as described herein,  any controversy or claim arising
out of, or relating  to, any  provision  of this  Agreement  shall be settled by
binding  arbitration  in  accordance  with  the  laws  of  the  Commonwealth  of
Massachusetts  by  three  arbitrators,  one of whom  shall be  appointed  by the
Company,  one of whom shall be appointed by you,  and the third  arbitrator  who
shall be appointed by the first two  arbitrators.  If the first two  arbitrators
cannot agree on the appointment of a third arbitrator, then the third arbitrator
shall  be  appointed  by the  American  Arbitration  Association  in the City of
Boston.  Such arbitration shall be conducted in the City of Boston in accordance
with the rules of the American Arbitration  Association,  except with respect to
the  selection  of  arbitrators,  which shall be as  provided  in this  Section.
Judgment on the award  rendered by the  arbitrators  may be entered in any court
having jurisdiction thereof and shall not be appealable. The prevailing party in
such  arbitration  proceeding  shall be entitled to  reimbursement  by the other
party of all  reasonable  legal fees and other costs  incurred by the prevailing
party in  connection  with such  proceeding,  including any legal fees and costs
incurred in connection with the enforcement of any award.

         If you are in agreement with the foregoing, please sign your name below
and also at the bottom of the Proprietary  Information and Inventions Agreement,
whereupon  this  Agreement  shall become  binding in accordance  with its terms.
Please then  return  this  Agreement  to the  Company.  (You may retain for your
records the accompanying counterpart of this Agreement enclosed herewith).

                                               Very truly yours,

ACCEPTED AND AGREED:                           PLC SYSTEMS INC.



                                               By:
- ------------------------                          ----------------------------
Max L. Hibbs                                      Dr. Robert I. Rudko,
                                                  Chairman of the Board


                                       -6-





                                                                       EXHIBIT A

                   EMPLOYMENT TERM, COMPENSATION AND BENEFITS
                                 OF MAX L. HIBBS


l.       Term.  The term of the Agreement to which this Exhibit A is annexed and
         incorporated  shall  be for a period  from  the date of this  Agreement
         through December 31, 1997.

2.       Compensation.

                  (a) Base  Salary.  Your Base Salary shall be  $195,000.00  per
         annum  through  December  31,  1995,  payable  in  accordance  with the
         Company's  payroll  policies at the rate of $16,250.00  per month.  For
         Fiscal 1996, effective as of January 1, 1996, your Base Salary shall be
         $215,000.00 per annum, payable in accordance with the Company's payroll
         policies at the rate of $17,916.66 per month.

                  (b)  Incentive  Sales and Placement  Plan.  During Fiscal Year
         1996, you shall receive incentive  compensation  based on the Company's
         sales or new placements  (under signed Heart Laser Usage Agreements) of
         the Heart Laser in Fiscal Year 1996 based on a percentage  of your Base
         Salary as follows:

                          Number of Lasers                   Bonus as a
                           Sold or Placed:           Percentage of Base Salary:
                          ----------------           --------------------------

         Plan                     30                             20%
         ----

         Above Plan - linear 10%  increase in bonus for each Heart laser sold or
placed

                                  32                             24%
                                  34                             28%
                                  36                             32%
                                  50 and above              120% (maximum)
         Below Plan
                                  28                             16%
                                  26                             12%
                                  24                              8%
                                  Below 20                        0%

         All references to sales or placements are net of returns.

         Once the Company has achieved the minimum  sales and/or  placements  of
the Heart Laser  necessary to pay bonuses,  the Company shall pay bonuses within
30 days of the end of each fiscal


                                       A-1





quarter.  Any disputes regarding whether a laser has been sold or placed will be
determined by the  Corporation's  legal  counsel  taking into effect the binding
nature of the sales or  placement  contract.  In no event shall a  placement  be
deemed to have  occurred if the  Hospital or other  lessee of the Heart Laser is
not required to pay for a minimum  number of  procedures  in total and a minimum
number of procedures  in the first  calendar year of the placement as determined
by the Board of Directors.

                  (c)  Profit  Sharing  Plan  Bonus.  In  addition  to the  sums
         described  above,  you shall receive an  additional  bonus of an amount
         equal to $10,000 for each $1,000,000 in net income (before interest and
         taxes  and items of  extraordinary  income  or  expense)  earned by the
         Company in Fiscal Year 1996.  For  illustration  purposes  only, if the
         Company earns  $4,999,999.99  in Fiscal 1996, you would receive a bonus
         of $40,000.  The bonus shall be payable  within 15 days of the issuance
         of the Company's audited financial statements for such fiscal year, but
         in any event no later  than 115 days  after  the end of the  applicable
         fiscal year.

                  (d)  "Pre-Market  Approval"  Bonus. In addition to other stock
         options now held by you, upon the earlier of January 1, 2000 or receipt
         of pre-market approval ("PMA") by the U.S. Food and Drug Administration
         of commercial sale of the Heart Laser, you shall be entitled to receive
         an additional stock option grant to purchase up to 25,000 shares of the
         Corporation's  Common  Stock at an  exercise  price of $16.00 per share
         (the fair market value as described in the  Corporation's  Stock Option
         Plan).

3.       Vacation.  You shall be entitled to all legal and  religious  holidays,
         and four weeks paid  vacation  per annum.  Any unused  vacation  may be
         accrued or cashed in based on your then current Base Salary.

4.       Insurance and Benefits.  You shall be eligible for participation in any
         health, dental and other group insurance plans which may be established
         and maintained by the Company for all full- time employees or which the
         Company is required to maintain by law. The Company  shall  provide you
         with health  insurance  for you and your family  providing  benefits at
         least equal to the  benefits  of the  policies  currently  in place and
         shall  provide  you with group life  insurance  equal to two times your
         base salary. In addition, the Company shall provide to you the right to
         receive such benefits as you may reasonably determine,  payable in each
         fiscal year, in an amount up to 15% of your then base salary.

5.       [Intentionally left blank.]

6.       Retirement Plan.  You will be eligible to participate in the Company's 
         401(k) Plan.

7.       Severance Benefits.

         (a) When  provided  for in this  Agreement,  you shall be  entitled  to
"Severance Benefits".  When used in this Agreement,  the term Severance Benefits
shall mean a total amount equal to (i)


                                       A-2





your then  current  annual  Base  Salary,  plus (ii)  your  Incentive  Sales and
Placement  Plan Bonus and your Profit Plan Bonus earned for the  Company's  most
recent  calendar  year. If the Company's  fiscal year is changed,  the Incentive
Sales and  Placement  Bonus and your  Profit Plan Bonus shall be based upon your
bonuses received during the Company's most recent fiscal year. This total amount
shall be paid to you in twelve (12) equal monthly installments commencing within
ten (10) days after the date of your  termination of active  employment with the
Company.

         (b) In  addition,  the term  "Severance  Benefits"  shall  include  the
continuation for you and your family,  during the Severance  Period,  as defined
below,  of all of the other  benefits  which are provided or available to you on
the last day of your actual  service with the Company,  including your continued
accrual  and the  vesting  under the terms of any  pension  or 401(k)  plan then
sponsored by the Company to the maximum extent permitted by law. For purposes of
this  Agreement,  the term  "Severance  Period"  means the period of twelve (12)
months beginning on the last day of your active service with the Company.

         (c) The lump sum payment  referred to above will be in addition to, and
not in  substitution  for,  any accrued and unpaid  salary,  vacation,  pension,
retirement or other benefits,  unreimbursed  expenses or other payments to which
you may be otherwise entitled.

         (d) In the event of your death while you are  employed by the  Company,
your  then  current  Base  Salary  shall  continue  to be  paid  to  your  legal
representative  for a period of 120 days  following the date of your death;  and
for a period of three (3) years following your death, the Company shall continue
to  provide  to your  spouse  at  Company  cost the  health  insurance  coverage
described above. If you die during the Severance Period,  all cash amounts which
would have been payable to you under this Exhibit "A", unless otherwise provided
for herein, shall be paid in accordance with the terms of this Agreement to your
estate.

         (e) You shall not be required to mitigate the amount of any payment the
Company becomes  obligated to make to you in connection with this Agreement,  by
seeking other employment or otherwise.

8.       Change in Control.

         (a)      For purposes of this Agreement, "Change in Control" means and
shall be deemed to occur if any of the following occurs:

                  (i)  the   acquisition,   after  September  30,  1994,  by  an
         individual,  entity or group [within the meaning of Section 13(d)(3) or
         14(d)(2)  of the  Securities  Exchange  Act of  1934  as  amended  (the
         "Exchange  Act")] of beneficial  ownership  (within the meaning of Rule
         13d-3  promulgated under the Exchange Act) of 25% or more of either (A)
         the outstanding  shares of common stock,  par value $ .01 per share, of
         the Company (the "Common  Stock"),  or (B) the combined voting power of
         the voting  securities of the Company entitled to vote generally in the
         election of directors (the


                                       A-3





         "Voting  Securities");  or (ii) Individuals who, on September 30, 1994,
         constituted  the Board of  Directors  of the  Company  (the  "Incumbent
         Board")  cease for any reason to  constitute at least a majority of the
         Board  of  Directors  of  the  Company;  provided,  however,  that  any
         individual  becoming a director  subsequent to September 30, 1994 whose
         election, or nomination for election by the Company's shareholders, was
         approved by a vote of at least a majority of the directors then serving
         and comprising  the Incumbent  Board shall be considered as though such
         individual  were a member of the Incumbent  Board,  but excluding,  for
         this purpose,  any such individual  whose initial  assumption of office
         occurs as a result of either an actual or threatened  election  contest
         (as such terms are used in Rule 14a-11 of  Regulation  14A  promulgated
         under the Exchange Act) or other actual or threatened  solicitation  of
         proxies or consents; or (iii) Approval by the Board of Directors or the
         shareholders of the Company of a (A) tender offer to acquire any of the
         Common Stock or voting securities,  (B)  reorganization,  (C) merger or
         (D) consolidation, other than a reorganization, merger or consolidation
         with respect to which all or  substantially  all of the individuals and
         entities  who were the  beneficial  owners,  immediately  prior to such
         reorganization, merger or consolidation, of the Common Stock and voting
         securities beneficially own, directly or indirectly,  immediately after
         such reorganization, merger or consolidation, more than 80% of the then
         outstanding  common  stock  and  voting  securities  (entitled  to vote
         generally in the election of directors) of the Company  resulting  from
         such reorganization,  merger or consolidation in substantially the same
         proportions as their respective  ownership,  immediately  prior to such
         reorganization,  merger or  consolidation,  of the Common Stock and the
         voting  securities;  or (iv)  Approval by the Board of Directors or the
         shareholders   of  the  Company  of  (A)  a  complete  or   substantial
         liquidation  or  dissolution  of the Company,  or (B) the sale or other
         disposition of all or  substantially  all of the assets of the Company,
         excluding a reorganization  of the Corporation under the corporate laws
         of a state or province other than British Columbia.

         (b) In the  event  of a  Change  in  Control  during  the  term of this
Agreement  or any  extension  hereof and  provided  you remain  employed  by the
Company for a period of 12 months, you will receive, at the one-year anniversary
of the Change of Control,  a supplemental  amount in a lump sum equal to 150% of
your current Base Salary and Bonuses paid during the preceding  fiscal year, and
the fair  market  value of all other  benefits  then  payable,  irrespective  of
whether you thereafter actually terminate employment with the Company.

         (c)  In  the   event  of  your   actual   termination   of   employment
contemporaneous  with or  following a Change in  Control,  except (x) because of
your death,  (y) by the Company for Cause or Disability  (as each is hereinafter
defined) or (z) by you other than for Good Reason (as hereinafter defined):  (i)
you shall be entitled to receive, in lieu of the sums described in Section 7, an
amount equal to 299% of Severance  Benefits due  determined  as if payable under
Section 7 above, to be paid in accordance with the terms of this Agreement;  and
(ii) the following  additional  provisions  shall apply (which  provisions shall
supersede any other provisions of the Agreement, including but not


                                       A-4





limited  to  Section 2 of the  Agreement,  to the  extent  such  provisions  are
inconsistent with the following provisions):

                  (1) Disability. For purposes of this Section 8(c), termination
by the Company of your employment  based on "Disability"  shall mean termination
because of your  absence  from your duties with the Company on a full time basis
for one hundred eighty (180) consecutive days as a result of your incapacity due
to physical or mental  illness,  unless  within thirty (30) days after Notice of
Termination (as hereinafter defined) is given to you following such absence, you
shall have returned to the full time performance of your duties.

                  (2) Cause.  For purposes of this Section 8(c),  termination by
the Company of your  employment for "Cause" shall mean  termination for cause as
defined in Section 2.2(a).

                  (3) Good Reason.  Termination  by  you of  your employment for
"Good Reason" shall mean termination based on:

                           (A)  a  determination  by  you,  in  your  reasonable
judgment,  that  there has been a  material  adverse  change  in your  status or
position(s)  as an  executive  officer of the  Company as in effect  immediately
prior to the  Change in  Control,  including,  without  limitation,  a  material
adverse  change in your status or position as a result of a  diminution  in your
duties or responsibilities (other than, if applicable,  any such change directly
attributable  to the fact that the Company is no longer  publicly  owned) or the
assignment to you of any duties or responsibilities  which are inconsistent with
such  status or  position(s),  or any  removal  of you from,  or any  failure to
reappoint or reelect you to, such  position(s)  (except in  connection  with the
termination  of your  employment  for Cause or Disability or as a result of your
death or by you other than for Good Reason) and further  provided  that you have
given the Company  notice of this  material  adverse  change and the Company has
failed to correct such material  adverse  change  within a reasonable  period of
time (but at least 14 days after written notice from you);

                           (B) a reduction by the Company in your Base Salary as
in effect immediately prior to the Change in Control;

                           (C) the  failure by the Company to continue in effect
any Plan (as hereinafter  defined) in which you are participating at the time of
the Change in  Control  of the  company  (or Plans  providing  you with at least
substantially  similar benefits) other than as a result of the normal expiration
of any such  Plan in  accordance  with its terms as in effect at the time of the
Change in Control,  or the taking of any  action,  or the failure to act, by the
Company which would adversely affect your continued participation in any of such
Plans on at least as  favorable a basis to you as is the case on the date of the
Change in Control or which would  materially  reduce your benefits in the future
under any of such Plans or deprive you of any material benefit enjoyed by you at
the time of the Change in Control;


                                       A-5





                           (D) the  failure by the Company to provide and credit
you with the  number of paid  vacation  days to which you are then  entitled  in
accordance with the Company's  normal  vacation policy as in effect  immediately
prior to the Change in Control;

                           (E) the  Company's  requiring  you to be based at any
office  that is greater  than  twenty-five  (25) miles from where your office is
located immediately prior to the Change in Control except for required travel on
the Company's business to an extent  substantially  consistent with the business
travel  obligations  which you  undertook on behalf of the Company  prior to the
Change in Control;

                           (F) the  failure by the  Company  to obtain  from any
Successor (as hereinafter defined) the assent to this Agreement  contemplated by
Section 8(c)(7) hereof;

                           (G) any purported  termination by the Company of your
employment which is not effected pursuant to a Notice of Termination  satisfying
the requirements of Section (8)(c)(4) below (and, if applicable, Section 8(c)(2)
above); and for purposes of this Agreement,  no such purported termination shall
be effective; or

                           (H) any  refusal by the  Company to continue to allow
you to attend to matters or engage in  activities  not  directly  related to the
business  of the  Company  which,  prior  to the  Change  in  Control,  you were
permitted by the Board to attend to or engage in.

         For purposes of this Agreement, "Plan" shall mean any compensation plan
or any employee benefit plan such as a thrift, pension, profit sharing, medical,
disability,  accident, life insurance plan or a relocation plan or policy or any
other plan, program or policy of the Company intended to benefit employees.

                  (4) Notice of  Termination.  Any purported  termination by the
Company or by you following a Change in Control shall be communicated by written
notice to the other  party  hereto  which  indicates  the  specific  termination
provision in this Agreement relied upon (the "Notice of Termination").

                  (5) Date of  Termination.  "Date of  Termination"  following a
Change in Control  shall mean (A) if your  employment  is to be  terminated  for
Disability, thirty (30) days after Notice of Termination is given (provided that
you shall not have  returned  to the  performance  of your duties on a full-time
basis  during such  thirty (30) day  period),  (B) if your  employment  is to be
terminated  by the Company for any reason other than death or  Disability  or by
you  pursuant to  Sections  8(c)(3)(F)  or 8(c)(7)  hereof or for any other Good
Reason,  the  date  specified  in the  Notice  of  Termination,  or (C) if  your
employment is terminated on account of your death,  the day after your death. In
the case of termination of your  employment by the Company for Cause pursuant to
Subsection  8(c)(2)  hereof,  if you have not  previously  expressly  agreed  in
writing to the termination, then within thirty (30) days after receipt by you of
the Notice of Termination with respect thereto,  you may notify the Company that
a dispute exists concerning the Termination, in which event the

                                       
                                      A-6





Date of Termination  shall be the date set either by mutual written agreement of
the parties or by such court having the matter before it. During the pendency of
any such dispute, the Company will continue to pay you your full compensation in
effect just prior to the time the Notice of  Termination  is given and until the
dispute is resolved.  However,  if such court issues a final and  non-appealable
order finding that the Company had Cause to terminate  you, then you must return
all  compensation  paid to you after the Date of  Termination  specified  in the
Notice of Termination previously received by you.

                  (6) Compensation Upon Termination or During Disability;  Other
Agreements.

                  (A)  During any  period  following  a Change in Control of the
Company  that you fail to perform your duties as a result of  incapacity  due to
physical or mental  illness,  you shall  continue to receive your Base Salary at
the rate then in effect and any benefits or awards under any Plan shall continue
to accrue during such period,  to the extent not  inconsistent  with such Plans,
until and unless your  employment  is  terminated  pursuant to and in accordance
with this  Section  8(c).  Thereafter,  your  benefits  shall be  determined  in
accordance with the Plans then in effect.

                  (B) If your  employment  is terminated  for Cause  following a
Change in Control of the Company,  the Company shall pay to you your Base Salary
through the Date of  Termination  at the rate in effect just prior to the time a
Notice of Termination is given plus any benefits or awards  (including  both the
cash and stock  components)  which  pursuant to the terms of any Plans have been
earned or become payable, but which have not yet been paid to you. Thereupon the
Company shall have no further obligations to you under this Agreement.

                  (7) Successors, Binding Agreement.

                  (A) The Company  will seek,  by written  request at least five
(5) business days prior to the time a Person becomes a Successor (as hereinafter
defined),  to have such Person, by agreement in form and substance  satisfactory
to you,  assent to the  fulfillment  of the  Company's  obligations  under  this
Agreement.  Failure of such  Person to furnish  such  assent by the later of (i)
three (3)  business  days prior to the time such Person  becomes a Successor  or
(ii) two (2) business  days after such Person  receives a written  request to so
assent shall constitute Good Reason for termination by you of your employment if
a Change in Control of the Company occurs or has occurred.  For purposes of this
Section 8 of Exhibit "A," "Successor" shall mean any person that succeeds to, or
has the practical ability to control (either  immediately or with the passage of
time),  the  Company's  business  directly,  by  merger  or  consolidation,   or
indirectly,  by purchase of the  Company's  securities  eligible to vote for the
election of directors, or otherwise.

                  (B)  This  Agreement  shall  inure  to the  benefit  of and be
enforceable by your personal legal representatives,  executors,  administrators,
successors, heirs, distributees,  devisees and legatees. If you should die while
any amount would still be payable to you hereunder if you had continued to live,
all such amounts, unless otherwise provided herein, shall be paid in accordance

                  
                                       A-7





with the terms of this Agreement to your devisee,  legatee or other designee or,
if no such designee exists, to your estate.

                  (C) For  purposes  of this  Section  8,  the  "Company"  shall
include any  subsidiaries  of the Company and any  corporation  or other  entity
which  is  the  surviving  or  continuing  entity  in  respect  of  any  merger,
consolidation  or form of business  combination  in which the Company  ceases to
exist;  provided,  however,  for  purposes  of  determining  whether a Change in
Control has occurred herein, the term "Company" shall refer to PLC Systems, Inc.
or its Successor(s).

                  (8) Fees and Expenses; Mitigation.

                  (A) The Company shall  reimburse you, on a current basis,  for
all  reasonable  legal fees and related  expenses  incurred by you in connection
with the  Agreement  following  a Change in  Control of the  Company,  including
without  limitation,  (i) all  such  fees  and  expenses,  if any,  incurred  in
contesting or disputing any  termination of your employment or (ii) your seeking
to obtain or enforce any right or benefit  provided by this  Agreement,  in each
case,  regardless of whether or not your claim is upheld by a court of competent
jurisdiction; provided, however, you shall be required to repay any such amounts
to the  Company to the  extent  that a court  issues a final and  non-appealable
order  setting  forth  the  determination  that  the  position  taken by you was
frivolous or advanced by you in bad faith.

                  (B) You shall not be required  to  mitigate  the amount of any
payment the Company  becomes  obligated to make to you in  connection  with this
Agreement, by seeking other employment or otherwise.

                  (9) Taxes. All payments to be made to you under this Agreement
will be subject to required  withholding of federal,  state and local income and
employment taxes.

                  (d) Notwithstanding any other provision of this Agreement,  in
the event that any  payment of benefit  received  or to be  received by you as a
result of or in  connection  with a Change in Control,  whether  pursuant to the
terms of this  Agreement or any other plan,  arrangement  or agreement  with the
Company  (all such  payment and  benefits  being  hereinafter  called the "Total
Payments")  would subject you to the excise tax (the "Excise Tax") imposed under
Section 4999 of the  Internal  Revenue  Code of 1986,  as amended (the  "Code"),
then, to the extent necessary to eliminate any such imposition of the Excise Tax
(after  taking into account any  reduction in the Total  Payments in  accordance
with the provisions of any other plan,  arrangement  or agreement,  if any), (a)
any non-cash  severance payments otherwise payable to you shall first be reduced
(if necessary, to zero), and (b) any cash severance payment otherwise payable to
you shall next be reduced.  For purposes of the immediately  preceding sentence,
(i) no portion of the Total Payments the receipt or enjoyment of which you shall
have effectively waived in writing shall be taken into account,  (ii) no portion
of the  Total  Payment  shall be taken  into  account  which in the  opinion  of
nationally-recognized  certified  public  accountants  (in each case as mutually
selected by you and the  Company)  does not  constitute  a  "parachute  payment"
within the meaning of Section 280G of the Code,


                                       A-8





including,  without limitation,  by reason of Section 280G(b)(2) or (b)(4)(A) of
the  Code,  (iii)  any  payments  to you  shall be  reduced  only to the  extent
necessary so that the Total  Payments  [other than those  referred to in clauses
(i) and (ii)] in their entirety constitute reasonable  compensation for services
actually  rendered  within the meaning of section  280G(4)(B) of the Code or are
otherwise not subject to disallowance  as deductions,  in the opinion of the tax
counsel or the accountants referred to in clause (ii); and (iv) the value of any
non-cash  benefit  or any  deferred  payment or  benefit  included  in the Total
Payments  shall  be  determined  by such  accountants  in  accordance  with  the
requirements of section  280G(d)(3) and (4) of the Code (and such  determination
shall be reviewed by such tax counsel).


                                       A-9





                                                                       EXHIBIT B



                    OUTSIDE EMPLOYMENTS AND DIRECTORSHIPS OF

                                  MAX L. HIBBS



                                      None









                                       B-1





                                                                       EXHIBIT C



                     _____________________________________

                PROPRIETARY INFORMATION AND INVENTIONS AGREEMENT
                     _____________________________________


To: PLC Systems Inc.                                     As of September 8, 1994
    113 Cedar Street, Suite S-2
    Milford, Massachusetts  01757



         The  undersigned,  in  consideration  of  and  as  a  condition  of  my
employment  or continued  employment  by you and/or by companies  which you own,
control,  or are affiliated with or their successors in business  (collectively,
the "Company"), hereby agrees as follows:

         1. Confidentiality. I agree to keep confidential, except as the Company
may otherwise consent in writing,  and, except for the Company's benefit, not to
disclose  or make any use of at any  time  either  during  or  subsequent  to my
employment, any Inventions (as hereinafter defined), trade secrets, confidential
information,  knowledge,  data or other  information of the Company  relating to
products,  processes,  know-how,  designs,  formulas, test data, customer lists,
business plans,  marketing plans and strategies,  pricing  strategies,  or other
subject  matter  pertaining  to  any  business  of  the  Company  or  any of its
affiliates,  which I may produce, obtain, or otherwise acquire during the course
of my  employment,  except as herein  provided.  I further agree not to deliver,
reproduce or in any way allow any such trade secrets,  confidential information,
knowledge, data or other information,  or any documentation relating thereto, to
be  delivered  to or used by any third  parties  without  specific  direction or
consent of a duly authorized representative of the Company.

          2. Conflicting  Employment;  Return of Confidential  Material. I agree
that  during  my  employment  with the  Company  I will not  engage in any other
employment, occupation, consulting or other activity relating to the business in
which  the  Company  is now or may  hereafter  become  engaged,  or which  would
otherwise  conflict  with  my  obligations  to  the  Company.  In the  event  my
employment  with the Company  terminates for any reason  whatsoever,  I agree to
promptly surrender and deliver to the Company all records, materials, equipment,
drawings,  documents and data of which I may obtain or produce during the course
of my  employment,  and I will not take with me any  description  containing  or
pertaining  to any  confidential  information,  knowledge or data of the Company
which I may produce or obtain during the course of my employment.



                                       C-1





         3.       Assignment of Inventions.

                  3.1 I hereby  acknowledge  and agree  that the  Company is the
owner of all  Inventions.  In order to  protect  the  Company's  rights  to such
Inventions,  by  executing  this  Agreement I hereby  irrevocably  assign to the
Company  all my  right,  title  and  interest  in and to all  Inventions  to the
Company.

                  3.2 For purposes of this  Agreement,  "Inventions"  shall mean
all discoveries,  processes, designs, technologies,  devices, or improvements in
any of the foregoing or other ideas,  whether or not  patentable  and whether or
not reduced to practice, made or conceived by me (whether solely or jointly with
others) during the period of my employment  with the Company which relate in any
manner to the actual or demonstrably anticipated business, work, or research and
development of the Company, or result from or are suggested by any task assigned
to me or any work performed by me for or on behalf of the Company.

                   3.3 Any discovery,  process, design,  technology,  device, or
improvement  in any of the foregoing or other ideas,  whether or not  patentable
and whether or not reduced to practice,  made or conceived by me (whether solely
or jointly with others) which I develop entirely on my own time not using any of
the  Company's  equipment,  supplies,  facilities,  or trade secret  information
("Personal  Invention") is excluded from this  Agreement  provided such Personal
Invention  (a)  does  not  relate  to the  actual  or  demonstrably  anticipated
business,  research and  development  of the  Company,  and (b) does not result,
directly or indirectly, from any work performed by me for the Company.

         4.       Disclosure of Inventions.  I agree that in connection with any
Invention,  I will promptly disclose such Invention to my immediate  superior at
the  Company in order to permit the Company to enforce  its  property  rights to
such  Invention  in  accordance  with this  Agreement.  My  disclosure  shall be
received in confidence by the Company.

         5.       Patents and Copyrights; Execution of Documents.

                  5.1 Upon request, I agree to assist the Company or its nominee
(at its expense)  during and at any time  subsequent  to my  employment in every
reasonable  way to  obtain  for its  own  benefit  patents  and  copyrights  for
Inventions in any and all countries.  Such patents and  copyrights  shall be and
remain the sole and exclusive property of the Company or its nominee. I agree to
perform  such lawful acts as the Company  deems to be  necessary  to allow it to
exercise all right, title and interest in and to such patents and copyrights.

                   5.2 In connection  with this  Agreement,  I agree to execute,
acknowledge  and deliver to the Company or its nominee  upon  request and at its
expense all  documents,  including  assignments  of title,  patent or  copyright
applications,  assignments  of such  applications,  assignments  of  patents  or
copyrights upon issuance, as the Company may determine necessary or desirable to
protect the Company's or its nominee's interest in Inventions,  and/or to use in
obtaining patents or



                                       C-2





copyrights in any and all countries and to vest  title thereto in the Company or
its nominee to any of the foregoing.

          6. Maintenance of Records.  I agree to keep and maintain  adequate and
current  written  records  of all  Inventions  made by me (in the form of notes,
sketches,  drawings and other records as may be specified by the Company), which
records shall be available to and remain the sole property of the Company at all
times.

         7. Prior Inventions.  It is understood that all Personal Inventions, if
any, whether patented or unpatented,  which I made prior to my employment by the
Company, are excluded from this Agreement. To preclude any possible uncertainty,
I have set forth on  Schedule  A attached  hereto a  complete  list of all of my
prior  Personal  Inventions,   including  numbers  of  all  patents  and  patent
applications and a brief description of all unpatented Personal Inventions which
are not the property of a previous  employer.  I represent and covenant that the
list is  complete  and that,  if no items are on the list,  I have no such prior
Personal Inventions.  I agree to notify the Company in writing before I make any
disclosure  or  perform  any work on  behalf of the  Company  which  appears  to
threaten or conflict with proprietary rights I claim in any Personal  Invention.
In the event of my  failure  to give such  notice,  I agree  that I will make no
claim against the Company with respect to any such Personal Invention.

         8. Other Obligations.  I acknowledge that the Company from time to time
may have agreements  with other persons or with the U.S.  Government or agencies
thereof,  which impose  obligations  or  restrictions  on the Company  regarding
Inventions   made  during  the  course  of  work  thereunder  or  regarding  the
confidential  nature of such work.  I agree to be bound by all such  obligations
and  restrictions  and to take all action  necessary to discharge  the Company's
obligations.

         9. Trade Secrets of Others.  I represent that my performance of all the
terms of this  Agreement and as an employee of the Company does not and will not
breach any agreement to keep confidential proprietary information,  knowledge or
data acquired by me in  confidence  or in trust prior to my employment  with the
Company,  and I will not disclose to the Company,  or induce the Company to use,
any  confidential  or  proprietary  information  or  material  belonging  to any
previous  employer  or others.  I agree not to enter into any  agreement  either
written or oral in conflict herewith.

         10.      Modification. I agree that any subsequent change or changes in
my  employment  duties,  salary  or  compensation  or,  if  applicable,  in  any
Employment  Agreement  between the Company and me, shall not affect the validity
or scope of this Agreement.

         11.      Successors and Assigns.  This Agreement  shall be binding upon
my heirs,  executors,  administrators or other legal  representatives and is for
the benefit of the Company, its successors and assigns.

         12.      Interpretation.  IT IS THE INTENT OF THE PARTIES  THAT in case
any one or more of the  provisions  contained in this Agreement  shall,  for any
reason, be held to be invalid,


                                       C-3





illegal  or  unenforceable  in  any  respect,  such  invalidity,  illegality  or
unenforceability  shall not affect the other  provisions of this Agreement,  and
this Agreement shall be construed as if such invalid,  illegal or  unenforceable
provision had never been  contained  herein.  MOREOVER,  IT IS THE INTENT OF THE
PARTIES  THAT in  case  any one or  more  of the  provisions  contained  in this
Agreement  shall for any reason be held to be excessively  broad as to duration,
geographical  scope,  activity or subject,  such provision shall be construed by
limiting and reducing it in  accordance  with a judgment of a court of competent
jurisdiction,  so as to be enforceable to the extent  compatible with applicable
law.

         13.      Waivers.  If  either  party  should  waive  any  breach of any
provision of this Agreement, he or it shall not thereby be deemed to have waived
any  preceding or succeeding  breach of the same or any other  provision of this
Agreement.

         14.  Complete  Agreement,  Amendments.  I  acknowledge  receipt of this
Agreement,  and agree that with respect to the subject  matter  thereof it is my
entire  agreement  with the Company,  superseding  any previous  oral or written
communications, representations,  understandings, or agreements with the Company
or any officer or  representative  thereof.  Any amendment to this  Agreement or
waiver  by  either  party of any  right  hereunder  shall be  effective  only if
evidenced by a written  instrument  executed by the parties hereto,  and, in the
case of the  Company,  upon  written  authorization  of the  Company's  Board of
Directors.

         15.      Headings. The headings of the sections hereof are inserted for
convenience  only and shall not be deemed to  constitute  a part  hereof  nor to
affect the meaning thereof.

         16.      Counterparts.   This   Agreement   may   be   signed   in  two
counterparts,  each of which shall be deemed an original and both of which shall
together constitute one agreement.

         17.      Governing Law.  This Agreement shall be governed and construed
under Massachusetts law.

         18       Employment  Status.  Nothing in this Agreement shall affect in
any  manner  whatsoever  the  right or power of the  Company  to  terminate  the
employment of the Employee.

                                                 EMPLOYEE


                                                 -----------------------------
                                                 Max L. Hibbs
Accepted and Agreed:
PLC SYSTEMS INC.


By:
   -------------------------------
   Dr. Robert I. Rudko,
   Chairman of the Board



                                       C-4




                                                                      SCHEDULE A


                            LIST OF PRIOR INVENTIONS


                                        Identifying Number of
Title       Date                          Brief Description
- -----       ----                          -----------------

NONE








                                      LEASE




                                 BY AND BETWEEN




                          AETNA LIFE INSURANCE COMPANY

                                  ("Landlord")


                                       AND


                            PLC MEDICAL SYSTEMS, INC.

                                   ("Tenant")


             For Premises at 10 Forge Park, Franklin, Massachusetts








                               LEASE SUMMARY SHEET


1.        LANDLORD:  Aetna Life Insurance Company

2.        LANDLORD'S ADDRESS:  (c/o Landlord's Managing Agent):

                   National Development of New England
                   199 Wells Avenue
                   Newton Centre, MA  02159
                   Attention:  Donald B. Morrisey

3.        TENANT:  PLC Medical Systems, Inc.

4.        TENANT'S ADDRESS:  113 Cedar Street, Milford, Massachusetts  01757

5.        PREMISES:  10 Forge Park, Franklin, MA

6.        TERM OF LEASE:  Five (5) Years

                   OPTION TO RENEW:  Two (3) Year Periods

7.        RENT:  MINIMUM (BASE) MONTHLY RENT:
                          Initial Lease Term:  See Section 1.4
                          Option Period:  See Section 1.6
                   ADDITIONAL RENT:  See Section 10.1

8.        SECURITY DEPOSIT:  $ 49,400.00








                                TABLE OF CONTENTS


      1       TERMS..........................................................1
              1.1      Premises..............................................1
              1.2      Agreed Areas..........................................1
              1.3      Lease Term............................................1
              1.4      Rent..................................................2
              1.5      Notices and Payments Addresses........................2
              1.6      Options To Extend.....................................2
              1.7      Market Rent...........................................3

      2       COMMENCEMENT AND EXPIRATION DATES..............................4
              2.1      Lease Term............................................4
              2.2      Lease Commencement Date...............................4
              2.3      Delivery of Possession................................4
              2.4      Tenant's Access to Premises
                       Prior to Lease Commencement Date......................4
      3       PAYMENT OF RENT................................................4

      4       LANDLORD'S WORK; CONSTRUCTION COSTS CAP; MOVING
              ALLOWANCE......................................................5
              4.1      Landlord's Work; Construction Costs Cap...............5
              4.2      Moving Allowance......................................6

      5       SECURITY DEPOSIT...............................................6

      6       USES...........................................................7
              6.1      Permitted Uses........................................7
              6.2      Hazardous Materials...................................8

      7       LATE CHARGES..................................................10

      8       REPAIRS AND MAINTENANCE.......................................11
              8.1      Landlord's Obligations...............................11
              8.2      Tenant's Obligations.................................11

      9       UTILITIES AND SERVICES........................................12
              9.1      Utility Bills........................................12
              9.2      Disclaimer...........................................12
              9.3      Heat Producing Equipment.............................12

     10       ADJUSTMENTS...................................................13
              10.1     Definition...........................................13





               10.2     Monthly Payments....................................15
               10.3     Further Adjustment..................................16

     11       PERSONAL PROPERTY TAXES.......................................16

     12       LIABILITY INSURANCE...........................................16

     13       FIRE INSURANCE - FIXTURES AND EQUIPMENT.......................17

     14       DESTRUCTION AND DAMAGE........................................18
              14.1     Casualty Damage - Insured............................18
              14.2     Release..............................................19
              14.3     Rent Abatement.......................................19
              14.4     Delay................................................19
              14.5     Uninsured Damage.....................................19
              14.6     Repair Obligation....................................19
              14.7     End of Term..........................................20
              14.8     Waiver...............................................20

     15       ALTERATIONS AND ADDITIONS:  REMOVAL OF FIXTURES...............20

     16       ACCEPTANCE OF PREMISES........................................21

     17       INTENTIONALLY OMITTED.........................................21

     18       ACCESS........................................................21

     19       WAIVER OF SUBROGATION.........................................21

     20       INDEMNIFICATION...............................................22

     21       ASSIGNMENT AND SUBLETTING.....................................22
              21.1     Landlord's Consent...................................22
              21.2     Criteria.............................................22
              21.3     Approved Subleases and Assignments...................23

     22       ADVERTISING...................................................24

     23       LIENS.........................................................24

     24       DEFAULT.......................................................24
              24.1     Tenant's Consent.....................................24
              24.2     Remedies.............................................26

     25       SUBORDINATION.................................................28







     26       SURRENDER OF POSSESSION.......................................28

     27       NON-WAIVER....................................................29

     28       HOLDOVER......................................................29

     29       CONDEMNATION..................................................29
              29.1     Substantial Taking...................................29
              29.2     Partial Taking.......................................29
              29.3     Awards and Damages...................................29

     30       NOTICES.......................................................30

     31       MORTGAGEE PROTECTION..........................................30

     32       COSTS AND ATTORNEYS' FEES.....................................30

     33       BROKERS.......................................................30

     34       LANDLORD'S LIABILITY..........................................31

     35       ESTOPPEL CERTIFICATES.........................................31

     36       FINANCIAL STATEMENTS..........................................31

     37       TRANSFER OF LANDLORD'S INTEREST...............................31

     38       RIGHT TO PERFORM..............................................32

     39       INTENTIONALLY OMITTED.........................................32

     40       SALES AND AUCTIONS............................................32

     41       NO ACCESS TO ROOF.............................................32

     42       SECURITY......................................................33

     43       AUTHORITY OF TENANT...........................................33

     44       NO ACCORD OR SATISFACTION.....................................33

     45       MODIFICATIONS FOR LENDER......................................33

     46       PARKING.......................................................33







     47       EXTERIOR SIGNS................................................34

     48       FORGE PARK COVENANTS AND RESTRICTIONS; RULES AND
              REGULATIONS...................................................34

     49       GENERAL PROVISIONS............................................34
              49.1     Acceptance...........................................34
              49.2     Joint Obligation.....................................34
              49.3     Marginal Headings, Etc...............................35
              49.4     Choice of Law........................................35
              49.5     Successors and Assigns...............................35
              49.6     Recordation..........................................35
              49.7     Quiet Possession.....................................35
              49.8     Inability to Perform.................................35
              49.9     Partial Invalidity...................................35
              49.10    Cumulative Remedies..................................35
              49.11    Entire Agreement.....................................35
              49.12    Exhibits.............................................35

     50       TENANT'S RIGHT OF SECOND OFFER TO LEASE ADDITIONAL
              SPACE IN THE BUILDING.........................................36







                                LIST OF EXHIBITS


         EXHIBIT A - The Premises

         EXHIBIT B - The Lot

         EXHIBIT C - Forge Park Covenants and Restrictions

         EXHIBIT D - List of Tenant's Hazardous Materials







                                      LEASE


         THIS  LEASE,  made as of this  __________  day of  June,  1996,  by and
between AETNA LIFE INSURANCE  COMPANY, a Connecticut  corporation  ("LANDLORD"),
having an address at 242 Trumbull Street,  Hartford,  Connecticut 06156, and PLC
MEDICAL  SYSTEMS,  INC.,  a  Massachusetts  corporation  ("Tenant"),  having its
principal place of business at 113 Cedar Street, Milford, MA 01757.


                                   WITNESSETH:

         That  Landlord,  for and in  consideration  of the  rents and all other
charges and  payments  hereinafter  reserved  and payable by Tenant,  and of the
covenants, agreements, terms, provisions and conditions to be kept and performed
hereunder  by Tenant,  does hereby  demise and lease to Tenant,  and Tenant does
hereby hire and take from Landlord,  the premises described below  ("Premises"),
subject to all matters affecting record title to the Building and Lot and to all
matters hereinafter set forth and upon and subject to the covenants, agreements,
terms, provisions and conditions of this Lease for the term hereinafter stated.

        1.        TERMS.   Landlord  and Tenant agree  to the  following, unless
otherwise specifically modified by provisions of this Lease:

                  1.1  Premises.   The  Premises  (hereinafter  the  "Premises")
         demised by this Lease are that  portion  of the  building  ("Building")
         located at 10 Forge Parkway, Franklin, Massachusetts, comprising in the
         aggregate  approximately  37,050  square feet of rentable  space,  more
         particularly shown on Exhibit A hereto, together with the non-exclusive
         right to use in common with other tenants (i) Tenant's Percentage Share
         of the parking  spaces  provided  for the  Building  located on the lot
         described  on  Exhibit B hereto  (the  "lot" or "Lot")  and (ii)  other
         common  areas in the  Building and upon the Lot for purposes of gaining
         access to the Premises. No easement for light or air is incorporated in
         the Premises.

                  1.2  Agreed Areas. Total rentable area of the Building: 98,673
         square feet;  Area of Premises:  Approximately  37,050  rentable square
         feet; and Tenant's Percentage Share: 37.55%

                  1.3  Lease Term.  Five (5) Years,  commencing  on September 1,
         1996 ("the  Lease  Commencement  Date")  (the  "Initial  Lease  Term");
         provided that if Landlord shall be unable to deliver  possession of the
         Premises to Tenant on July 1, 1996, the Lease  Commencement  Date shall
         be  delayed  for each day after July 1, 1996 that  Landlord  shall have
         been unable to deliver  possession  of the  Premises  to Tenant  except
         that,  notwithstanding  such delay in the Lease  






         Commencement  Date, the Initial Lease Term  shall  nevertheless end  on
         August 31, 2001.

                  1.4  Rent.  The basic rent  ("Rent")  for the Premises for the
         Initial Lease Term shall be $296,400 per annum.

                  Option Periods: See Section 1.6

         In addition to the Rent, Tenant shall pay the Additional Rent described
in Section 10 and the personal  property  taxes  described in Section 11, all of
which shall be deemed rent due under this Lease.

                  1.5   Notices and Payments Addresses:

                  If to Landlord:  Aetna Life Insurance Company
                                    c/o (Landlord's Managing Agent):
                                        National Development Asset Management of
                                        New England Limited Partnership
                                        2300 Washington Avenue
                                        Newton, MA
                                        Attention:  Donald B. Morrisey

                  If to Tenant:     (Prior to Lease Commencement Date)
                                        PLC Medical Systems, Inc.
                                        113 Cedar Street
                                        Milford, MA 01757
                                        Attention:  William Franks

                                        (On and after Lease Commencement Date)
                                        PLC Medical Systems, Inc.
                                        At the Premises
                                        Attention:  William Franks


                  1.6  Option To Extend.  Tenant shall have two (2)  consecutive
         separate  options to extend the Lease Term for an additional  three (3)
         year period (i.e.,  for a total,  if both such options are exercised as
         provided herein, of six successive years beyond the Initial Lease Term)
         beyond the then Lease Term (each  three year period  being  referred to
         herein as an "Option Period"), provided (i) Tenant shall give notice to
         Landlord of its  exercise of such option not less than seven (7) months
         prior to the  expiration  of the Initial Lease Term or the first Option
         Period, as the case may be, (ii) no default beyond any applicable grace
         period in the obligations of Tenant under this Lease shall exist at the
         time each such notice is


                                       2




         given, and (iii) at the time each such option is exercised the original
         Tenant  hereunder  shall be in  occupancy of the entire  Premises  then
         demised hereunder.  All of the terms and provisions of this Lease shall
         be  applicable  during each Option  Period except that (a) Tenant shall
         have no option to  extend  the Lease  Term  beyond  the  second  Option
         Period,  (b) the per annum Rent under  Section 1.4 for the first Option
         Period  shall be  ninety-five  percent  (95%) of the  Market  Rent,  as
         defined in Section 1.7 of this Lease,  as of the first day of the first
         Option  Period  but in no event  shall the per annum Rent for the first
         Option  Period be less than $6.25 per square foot of the  Premises  per
         annum,  and (c) the per annum  Rent  under  Section  1.4 for the second
         Option Period shall be ninety-five percent (95%) of the Market Rent, as
         defined in Section 1.7 of this Lease, as of the first day of the second
         Option  Period but in no event  shall the per annum Rent for the second
         Option  Period be less than $6.85 per square foot of the  Premises  per
         annum.

                 1.7 Market  Rent.  "Market  Rent"  shall be  computed as of the
         applicable  date at the  then  current  rentals  being  charged  to new
         tenants for  comparable  space  located in the Building and  comparable
         buildings in the general  vicinity of Franklin,  Massachusetts,  taking
         into  account  and  giving  effect  to, in  determining  comparability,
         without  limitation,  such considerations as size, location of premises
         and lease term.

                 Landlord shall initially designate the Market Rent prior to the
         applicable  Option  Period  and shall  furnish  data in support of such
         designation.  If Tenant  disagrees with  Landlord's  designation of the
         Market Rent,  then Tenant shall have the right, by written notice given
         within   twenty-one  (21)  days  after  Tenant  has  been  notified  of
         Landlord's  designation,  to submit such Market Rent to  arbitration as
         follows.  Market Rent shall be  determined  by  arbitrators,  one to be
         chosen  by  Tenant,  one to be  chosen  by  Landlord  and a third to be
         selected,  if necessary,  as below provided.  All arbitrators  selected
         under this paragraph shall be experienced  real estate  appraisers with
         substantial  experience  with  properties  in the  general  vicinity of
         Franklin,  Massachusetts. If within twenty-one (21) days after Tenant's
         notice,  the  parties  agree upon a single  arbitrator  or if one party
         fails to select an  arbitrator,  the  arbitrator  selected by the other
         shall be the sole  arbitrator,  and Market Rent shall be  determined by
         such arbitrator. The unanimous written decision of the two first chosen
         (or the decision of the first,  if a second  arbitrator  is not chosen)
         without selection and participation of a third arbitrator, or otherwise
         the written decision of a majority of the three arbitrators  chosen and
         selected as  provided  herein,  shall be  conclusive  and binding  upon
         Landlord and Tenant. Landlord and Tenant shall each notify the other of
         its chosen  arbitrator  within  twenty-one (21) days following the call
         for arbitration  and, unless such two arbitrators  shall have reached a
         unanimous  decision  within  thirty (30) days after their  designation,
         then they shall so notify the then 


                                       3




         President  of the Greater  Boston Real Estate  Board and request him or
         her to select an impartial  third  arbitrator  to act  hereunder.  Such
         third  arbitrator  and the first two chosen  shall hear the parties and
         their  evidence  and render  their  decision  within  thirty  (30) days
         following the conclusion of such hearing and notify Landlord and Tenant
         thereof.  Landlord  and  Tenant  shall  bear the  expense  of the third
         arbitrator (if any) equally.  If the dispute  between the parties as to
         Market Rent has not been resolved  before the  commencement of Tenant's
         obligation  to pay rent based upon such Market Rent,  then Tenant shall
         pay rent under the Lease in respect of the Premises  based upon the per
         annum Rent in effect for the then prior year until either the agreement
         of  the  parties  as  to  the  Market  Rent  or  the  decision  of  the
         arbitrators,  as the case may be, at which  time  Tenant  shall pay any
         underpayment  of  rent  to  Landlord,  or  Landlord  shall  refund  any
         overpayment of rent to Tenant.

        2.        COMMENCEMENT AND EXPIRATION DATES.

                  2.1 Lease  Term.  The term of this Lease shall be as set forth
         in Section 1.3.

                  2.2 Lease Commencement Date. The Lease Commencement Date shall
         be September 1, 1996.

                  2.3 Delivery of  Possession.  If Landlord is unable to deliver
         possession of the Premises to Tenant on July 1, 1996,  this Lease shall
         not be void or voidable, nor shall Landlord be liable to Tenant for any
         loss or damage resulting  therefrom,  but the Lease  Commencement  Date
         shall be adjusted as provided in Section 1.3.

                  2.4 Tenant's  Access To Premises  Prior To Lease  Commencement
         Date.  Subject to the following  provisions of this Section 2.4, Tenant
         shall be entitled to access the Premises,  upon  presentation by Tenant
         to Landlord of the certificates of liability  insurance  required under
         Section  12,  for the  purpose  of  constructing  the  "Tenant  Initial
         Improvements" (as such term is defined herein) and installing  Tenant's
         equipment and  furniture.  Such early access by Tenant shall be subject
         to all terms and  provisions  of this Lease  (except for the payment of
         Rent and the payments under Section 10), including, without limitation,
         Sections 9.1, 12, 15, and 20.

        3. PAYMENT OF RENT.  Tenant  shall pay Landlord the Rent and  Additional
Rent (as  defined in  Section  10) and any other  payments  due under this Lease
without prior notice,  deduction or offset,  in lawful money of the United Sates
in  advance  on or before  the first day of each  month,  except  that the first
month's Rent shall be paid upon the  execution  hereof,  at the address noted in
Section 1.5, or to such other party or at



                                       4




such other  place as  Landlord  may  hereafter  from time to time  designate  in
writing.  Rent and other  amounts due under this Lease for any partial  month at
the beginning or end of the Lease term shall be prorated.

        4.        LANDLORD'S WORK; CONSTRUCTION COSTS CAP; MOVING
                  ALLOWANCE:

                  4.1 The  Premises  are leased to Tenant "as is",  without  any
         obligation on the part of Landlord to perform any construction  therein
         or to prepare the same for Tenant's occupancy or otherwise.

                  Tenant  shall  prepare,  at  Tenant's  sole cost and  expense,
         detailed  architectural and engineering plans (the "Tenant  Improvement
         Plans") for Tenant's construction of the leasehold  improvements in the
         Premises   initially   required   by  Tenant   (the   "Tenant   Initial
         Improvements").   Tenant  and  Tenant's   architect  shall   diligently
         cooperate  with  Landlord in  connection  with the  preparation  of the
         Tenant  Improvement  Plans.  Tenant shall initially  present the Tenant
         Improvement Plans to Landlord for Landlord's approval on or before June
         14, 1996.

                  The Tenant  Improvement Plans and all changes thereto shall be
         subject  to  Landlord's   approval,   which   approval   shall  not  be
         unreasonably  withheld  or delayed  so long as any of the  improvements
         described in the Tenant Improvement Plans will not adversely affect the
         structure of the Building or any  mechanical  systems of the  Building.
         Construction documents shall be made available by Tenant to Landlord on
         or before July 1, 1996.

                  Landlord,   acting  through  its  managing   agent,   National
         Development  Asset  Management  of  New  England  Limited   Partnership
         ("Landlord's   Managing  Agent"),   shall  solicit  a  minimum  of  two
         construction  bids for the Tenant  Initial  Improvements  from licensed
         contractors.  Tenant  agrees  that  Landlord  shall  have the  right to
         request and receive a construction  bid from Cranshaw  Construction  of
         New  England  Limited  Partnership.  All bids  shall be due on June 21,
         1996. All bids received by Landlord's Managing Agent shall be submitted
         to both Landlord and Tenant.  The construction  contract for the Tenant
         Initial Improvements shall be awarded to the party mutually agreed upon
         by  and  between  Landlord  and  Tenant.   The  party  so  awarded  the
         construction  contract  shall enter into a  construction  contract with
         Tenant and shall be considered Tenant's contractor.

                  Landlord shall  reimburse  Tenant,  within twenty (20) days of
         receiving  appropriate  invoices  from Tenant,  for  Tenant's  costs of
         constructing   the   Tenant   Initial   Improvements   (including   any
         improvements to the Premises required by



                                       5



         the  Americans  With  Disabilities  Act);   provided,   however,   that
         Landlord's  obligation  to reimburse  Tenant for such costs shall in no
         event exceed $316,400 in the aggregate (the "Construction  Costs Cap").
         If the aggregate cost of constructing  the Tenant Initial  Improvements
         (the "Aggregate Construction Cost") exceeds the Construction Costs Cap,
         Tenant shall pay the excess of the Aggregate Construction Cost over the
         Construction  Costs Cap, it being  understood  and agreed that Landlord
         shall have no  obligation  to Tenant or any other party for the payment
         of such excess.

                  The Tenant Initial  Improvements shall be part of the Building
         and shall not be removed, except that Tenant shall remove such portions
         thereof as Landlord shall specify prior to the expiration of the Lease.

                  Tenant  agrees  to use  reasonable  efforts  to  substantially
         complete  the  Tenant  Initial  Improvements  on or  before  the  Lease
         Commencement  Date;  provided  that Tenant's  failure to  substantially
         complete the Tenant Initial Improvements (or Tenant's failure to obtain
         the  certificate  of occupancy  referred to in the next sentence) on or
         before the Lease  Commencement  Date shall not prevent the commencement
         of the Initial Lease Term from occurring on the Lease Commencement Date
         set forth in Section 1.3 nor shall such  failure by Tenant  prevent the
         obligations  of  Tenant  (including  its  obligation  to pay  Rent  and
         Additional  Rent)  from  commencing  under  this  Lease as of the Lease
         Commencement Date set forth in Section 1.3. Upon Tenant's completion of
         the  Tenant  Initial  Improvements  Tenant  shall  be  responsible  for
         obtaining a certificate of occupancy for the Premises.

                  4.2 Landlord shall provide  Tenant with a moving  allowance up
         to the aggregate  amount of $27,787.50  (the "Moving  Allowance").  The
         Moving  Allowance  shall be paid to  Tenant  to  reimburse  Tenant  for
         Tenant's costs of initially moving to the Premises,  within thirty (30)
         days of Tenant's  presentation of appropriate  invoices supporting such
         costs.

        5. SECURITY DEPOSIT.  As security for its full and faithful  performance
of this Lease, simultaneously with the execution of this Lease, Tenant shall pay
Landlord a security  deposit in cash in the amount of $49,400.00  (the "Security
Deposit").  Subject to the  provisions  of this Section 5, the Security  Deposit
shall be held in a separate, interest-bearing account.

         Landlord  shall hold the  Security  Deposit  (and any  interest  earned
thereon) as security for the  performance  by Tenant of all  obligations  on the
part of Tenant to be kept and  performed.  Landlord  shall have the right,  from
time to time without  prejudice to any other remedy Landlord may have on account
thereof, to draw upon the Security Deposit (and any interest earned thereon) and
apply such funds to Landlord's damages 



                                       6





arising  from  any  default  (which  continues  beyond  the  expiration  of  any
applicable cure period  hereunder) on the part of Tenant,  in which event Tenant
shall  restore  the  balance  of the  Security  Deposit to the  original  amount
required  hereunder within ten (10) days of Landlord's  written demand therefor.
Landlord  shall notify Tenant of any such  application  of the Security  Deposit
within a reasonable time after any such  application.  Tenant shall not have the
right to call upon Landlord to apply all or any part of the Security  Deposit to
cure any  default or fulfill  any  obligation  of Tenant,  but such use shall be
solely in the discretion of Landlord.  Landlord, however, shall not apply all or
any part of the Security  Deposit to cure any default or fulfill any  obligation
of Landlord.

         Within thirty (30) days following the expiration or earlier termination
of the Lease Term,  provided that there is not then a breach of any  undertaking
hereunder  by Tenant,  Landlord  shall  return  the  Security  Deposit  (and any
interest earned thereon),  or so much thereof as shall not have theretofore been
applied in  accordance  with the terms of this Section or drawn upon by Landlord
and applied by Landlord to cure any default of Tenant existing at the expiration
or earlier termination of this Lease.

          If Landlord conveys Landlord's interest under this Lease, the Security
Deposit  (and any  interest  earned  thereon)  shall be delivered by Landlord to
Landlord's  grantee,  and if so delivered  Tenant  agrees to look solely to such
grantee for proper  application  of the Security  Deposit (and such interest) in
accordance  with the terms of this Section and the return  thereof in accordance
herewith.  Upon any such  delivery,  provided  that  Landlord  gives  notice and
written  evidence of such delivery to Tenant,  Tenant hereby  releases  Landlord
herein named of any and all liability with respect to the Security  Deposit (and
such interest),  its application and return, and Tenant agrees to look solely to
such  grantee or  transferee.  This  provision  shall  also apply to  subsequent
grantees and  transferees.  Neither the holder of a mortgage nor the lessor in a
ground lease of property  which  includes the Premises shall ever be responsible
to Tenant for the return or  application  of any such Security  Deposit (or such
interest),  whether or not it  succeeds to the  position of Landlord  hereunder,
unless such  Security  Deposit (and such  interest)  shall have been received in
hand by such holder or ground lessor.

        6.        USES.

                  6.1 Permitted Uses. The Premises are to be used only for light
         manufacturing,  research and development, office, and ancillary storage
         uses  (the  "Permitted  Uses")  and for no other  business  or  purpose
         without the prior written consent of Landlord.  No act shall be done in
         or about  the  Premises  that is  unlawful  or that will  increase  the
         existing rate of insurance on the Building. In the event of a breach of
         this  covenant,  Tenant shall pay to Landlord any and all  increases in
         insurance premiums resulting from such breach.  Tenant shall not commit
         or allow to be committed any waste upon the Premises,  or any public or



                                       7



         private  nuisance  or  other  act or thing  which  disturbs  the  quiet
         enjoyment  of any other  tenant  in the  Building.  If any of  Tenant's
         machines or equipment  disturb any other tenant in the  Building,  then
         Tenant shall provide adequate insulation,  or take such other action as
         may be  reasonably  necessary  to eliminate  the noise or  disturbance.
         Tenant, at its expense,  shall comply with all laws relating to its use
         or occupancy of the Premises and shall  observe such  reasonable  rules
         and  regulations  as may be  adopted  and made  available  to Tenant by
         Landlord from time to time for the safety,  care and cleanliness of the
         Premises  or the  Building  and for  the  preservation  of  good  order
         therein.  Subject to  interruptions  due to  emergencies  and to events
         beyond  Landlord's  control,  Tenant shall have the right to access the
         Premises on a 24 hour per day, 7 day a week basis.

                  6.2      Hazardous Materials.

                           6.2.1 As used herein,  the term "Hazardous  Material"
                  shall mean any substance or material which has been determined
                  by any state,  federal or local  governmental  authority to be
                  capable  of  posing a risk of  injury  to  health,  safety  or
                  property,  including  all of those  materials  and  substances
                  designated  as  hazardous  or toxic  by the city in which  the
                  Premises  are  located,   the   Massachusetts   Department  of
                  Environmental  Protection,  the U.S. Environmental  Protection
                  Agency, the Consumer Product Safety  Commission,  the Food and
                  Drug  Administration,  and  any  federal  agencies  that  have
                  overlapping  jurisdiction  with such  state  agencies,  or any
                  other  governmental  agency  now or  hereafter  authorized  to
                  regulate materials and substances in the environment.

                           6.2.2 Tenant  agrees not to introduce  any  Hazardous
                  Material in, on or adjacent to the  Premises,  the Building or
                  the Lot without first obtaining  Landlord's  prior consent and
                  without complying with all applicable federal, state and local
                  laws, rules, regulations, policies and authorities relating to
                  the  storage,  use or  disposal,  and  clean-up  of  Hazardous
                  Materials,  including,  but not limited to, the  obtaining  of
                  proper  permits;  provided,  however,  that in the event  that
                  Landlord  fails to notify  Tenant  within  thirty (30) days of
                  receipt of Tenant's  written  request  for such  consent as to
                  whether or not  Landlord  will grant  such  consent,  Landlord
                  shall be  deemed  to have  granted  its  consent  to  Tenant's
                  request.  Provided that Tenant  complies  with all  applicable
                  federal, state, and local rules and regulations,  policies and
                  authorities  relating  to  the  storage,   use,  disposal  and
                  clean-up of the same, Landlord hereby consents to Tenant's use
                  and storage on the Premises of the Hazardous  Materials listed
                  on Exhibit D hereto.



                                       8



                           6.2.3 Tenant shall  promptly  notify  Landlord of any
                  inquiry, test, investigation,  or enforcement proceeding by or
                  against  Landlord or Tenant or the  Premises,  the Building or
                  the Lot concerning a Hazardous  Material.  Tenant acknowledges
                  that Landlord, as the owner of the Premises,  the Building and
                  the Lot,  shall have the right,  at its  election,  in its own
                  name or as Landlord's  agent, to negotiate,  defend,  approve,
                  and appeal,  any action taken or order issued with regard to a
                  Hazardous  Material by an applicable  governmental  authority,
                  and to the extent  such  presence  or  release of a  Hazardous
                  Material   was  caused  by  Tenant  or   Tenant's   employees,
                  contractors or agents,  such negotiations,  defense,  approval
                  and/or appeal shall be at Tenant's expense.

                           6.2.4 If  Tenant's  storage,  use or  disposal of any
                  Hazardous  Material  in, on or adjacent to the  Premises,  the
                  Building  or  the  Lot  results  in any  contamination  of the
                  Premises,  the  Building  or the Lot,  the soil or  surface or
                  groundwater (i) requiring remediation under federal,  state or
                  local statutes,  ordinances,  regulations or policies, or (ii)
                  at levels which are  unacceptable  to Landlord,  in Landlord's
                  reasonable   judgment,   Tenant   agrees   to   clean-up   the
                  contamination.  Tenant further agrees to indemnify, defend and
                  hold  Landlord  harmless  from and against any claims,  suits,
                  causes of action,  costs, fees,  including attorneys' fees and
                  costs, arising out of or in connection with any clean-up work,
                  inquiry or enforcement proceeding in connection therewith, and
                  any Hazardous Materials currently or hereafter used, stored or
                  disposed of by Tenant or its agents, employees, contractors or
                  invitees on or about the Premises, the Building or the Lot.

                           6.2.5   Notwithstanding  any  other  right  of  entry
                  granted to Landlord under this Lease,  Landlord shall have the
                  right,  upon reasonable  prior notice to Tenant (except in the
                  case of  emergency,  in which  event no such  notice  shall be
                  required),  to reasonably enter the Premises,  the Building or
                  the Lot or to have consultants  reasonably enter the Premises,
                  the Building and the Lot throughout the term of this Lease for
                  the purpose of  determining:  (1) whether  the  Premises,  the
                  Building and the Lot are in conformity with federal, state and
                  local   statutes,   regulations,   ordinances,   and  policies
                  including those pertaining to the  environmental  condition of
                  the  Premises,  (2)  whether  Tenant  has  complied  with this
                  Section 6, and (3) the corrective  measures,  if any, required
                  of Tenant to ensure  the safe use,  storage  and  disposal  of
                  Hazardous Materials, or to remove Hazardous Materials.  Tenant
                  agrees to provide reasonable access and reasonable  assistance
                  for such  inspections.  Such inspections may include,  but are
                  not limited to, entering the Premises, the Building or the Lot
                  or adjacent  property  with drill rigs or other  machinery for
                  the purpose



                                       9



                  of obtaining laboratory samples. Landlord shall not be limited
                  in the  number  of such  inspections  during  the term of this
                  Lease. Tenant shall be obligated to reimburse Landlord (within
                  ten days of receipt of a written  statement  therefor) for any
                  such   inspection   performed  by  Landlord  (i)  if  Landlord
                  performed such inspection based upon a reasonable  belief that
                  the   Premises,   the  Building  or  the  Lot  may  have  been
                  contaminated  by  Hazardous  Materials  due to the  actions or
                  omissions   of  Tenant  or   Tenant's   agents,   contractors,
                  employees,  or  invitees or (ii) any such  inspection  reveals
                  that  the  Premises,   the  Building  or  the  Lot  have  been
                  contaminated  by  Hazardous  Materials  due to the  actions or
                  omissions of Tenant or Tenant's agents, contractors, employees
                  or invitees.  If such consultants determine that the Premises,
                  the  Building  or the  Lot  are  contaminated  with  Hazardous
                  Materials,   Tenant  shall,   provided  that  such   Hazardous
                  Materials   were  released  by  Tenant  or  Tenant's   agents,
                  contractors,  employees  or  invitees,  (i) remove in a timely
                  manner at Tenant's expense such Hazardous  Materials,  so long
                  as such  Hazardous  Materials  either (a) require  remediation
                  under   federal,   state   or  local   statutes,   ordinances,
                  regulations  or  policies,  or (b)  are at  levels  which  are
                  unacceptable to Landlord,  in Landlord's  reasonable judgment,
                  or (ii)  otherwise  comply  with the  recommendations  of such
                  consultants to the reasonable satisfaction of Landlord and any
                  applicable   governmental   agencies.  The  right  granted  to
                  Landlord  herein to inspect the Premises,  the Building or the
                  Lot shall not create a duty on Landlord's  part to inspect the
                  Premises,  the  Building or the Lot, or  liability of Landlord
                  for Tenant's use, storage or disposal of Hazardous  Materials,
                  it being  understood  that Tenant shall be solely  responsible
                  for all liability in connection therewith.

                           6.2.6 Tenant shall surrender the Premises to Landlord
                  upon the expiration or earlier  termination of this Lease free
                  of Hazardous  Materials and in a condition which complies with
                  all  governmental   statutes,   ordinances,   regulations  and
                  policies,  reasonable  recommendations of consultants hired by
                  Landlord,  and such other  reasonable  requirements  as may be
                  imposed by Landlord.

                           6.2.7 Tenant's obligations under this Section 6 shall
                  survive termination of this Lease.

        7.  LATE  CHARGES.  Tenant  hereby  acknowledges  that late  payment  to
Landlord  of Rent,  Additional  Rent or  other  sums due  hereunder  will  cause
Landlord to incur costs not  contemplated  by this  Lease,  the exact  amount of
which will be extremely difficult to ascertain.  If any Rent, Additional Rent or
other sum due from Tenant is not received by Landlord or  Landlord's  designated
agent  within  five (5)  business  days of when due,  then  Tenant  shall pay to
Landlord a late charge equal to ten percent (10%) 



                                       10





of such overdue amount, plus any reasonable attorneys' fees incurred by Landlord
by reason of Tenant's  failure to pay Rent,  Additional  Rent and other  charges
when due hereunder.  The parties hereby agree that such late charges represent a
fair and  reasonable  estimate of the cost that Landlord will incur by reason of
Tenant's  late  payment.  Landlord's  acceptance  of such late charges shall not
constitute a waiver of Tenant's  default with respect to such overdue  amount or
estop  Landlord  from  exercising  any of the other rights and remedies  granted
hereunder.

        8.        REPAIRS AND MAINTENANCE.

                  8.1  Landlord's  Obligation.  Subject  to  Article  14  and to
         Tenant's  reimbursement  obligation  to Landlord  under  Section  10.1,
         Landlord shall maintain, or cause to be maintained, any common areas of
         the Building and the Lot in reasonably good order and condition  except
         for damage  occasioned  by any act or  omission  of Tenant or  Tenant's
         employees,  guests,  agents,  customers,  independent  contractors,  or
         invitees, the repair of which damage shall be paid for by Tenant within
         twenty (20) days of Landlord's written demand.  Subject to Section 8.2,
         Article 14 and to Tenant's  reimbursement  obligation to Landlord under
         Section  10.1,  Landlord  agrees  to  keep  in  good  repair  the  roof
         (including the structural portions thereof),  the Building  foundation,
         and exterior  walls  (exclusive of all glass and exterior  doors),  the
         heating,  ventilating  and air  conditioning,  plumbing and  electrical
         systems  serving the Premises,  and the  underground  utility and sewer
         pipes  outside  the  exterior  walls of the  Building,  if any,  except
         repairs  rendered  necessary by the  negligence of Tenant,  or Tenant's
         employees,  guests,  agents,  customers,   independent  contractors  or
         invitees, the repair of which shall be paid for by Tenant within twenty
         (20) days of Landlord's written demand.  Subject to Landlord's right of
         access pursuant to Article 18, Tenant shall be exclusively  responsible
         for the Premises,  and Landlord shall be under no obligation to inspect
         the Premises.  Tenant shall promptly  report in writing to Landlord any
         defective  condition  known to it which Landlord is required to repair,
         and failure to so report such defects shall make Tenant  responsible to
         Landlord  for any  liability  incurred by  Landlord  caused by Tenant's
         failure to promptly report such conditions.

                  8.2 Premises  Delivered As Is;  Tenant's  Obligations.  Tenant
         accepts the Premises in their  present  condition "as is" and as suited
         for the uses intended by Tenant.  Tenant shall,  throughout the Initial
         Lease Term and any extensions thereof, at its expense, maintain in good
         order and repair the Premises,  including all glass and doors, Tenant's
         equipment  now or  hereafter  on the  Premises  and other  improvements
         located thereon and any  supplementary  air  conditioning or electrical
         systems installed  pursuant to Section 9.3. Tenant agrees to return the
         Premises to Landlord at the  expiration  or prior  termination  of this
         Lease in as good  condition and repair as when first  received,  normal
         wear


                                       11




         and  tear,  damage  by  storm,  fire,   lightning,  earthquake or other
         casualty  excepted.  Tenant hereby  waives any law  regarding  Tenant's
         right to make  repairs and to deduct the  expenses of such repairs from
         the Rent due under the Lease.

                  Tenant  shall  be  responsible,  at  Tenant's  sole  cost  and
         expense, for all cleaning, including window washing of the interior and
         exterior windows, of the Premises.  Tenant shall contract,  at Tenant's
         sole cost and expense,  with a reputable company and shall otherwise be
         responsible for the removal of any and all rubbish from the Premises.

        9.        UTILITIES AND SERVICES.

                  9.1 Utility Bills. Tenant shall promptly pay all water, sewer,
         gas, electricity,  fuel, phone, light, heat, cleaning, rubbish removal,
         electric power and other utility bills for the Premises. If Tenant does
         not pay these bills,  Landlord,  at Landlord's option, may pay them and
         such payment shall be added to the Rent.  If any of such  utilities are
         not separately  metered to the Premises,  Landlord will bill Tenant for
         Tenant's  proportionate  share based on Tenant's Percentage Share or on
         such  other  equitable  basis as  reasonably  determined  by  Landlord.
         Landlord  shall  submit   estimated  bills  to  Tenant  for  such  non-
         separately  metered  utilities  monthly  and  Tenant  shall  pay  these
         estimated bills as "Additional  Rent" (as defined in Section 10.2) on a
         monthly basis  concurrently with the payment of Rent, and such payments
         shall be treated as if the same were  "Adjustments"  under Section 10.2
         hereof.

                  9.2  Disclaimer.  Landlord  shall not be liable  for any loss,
         injury or damage to property caused by or resulting from any variation,
         interruption,  or  failure  of such  services  due to any cause  beyond
         Landlord's reasonable control. No temporary  interruption or failure of
         such  services  incident  to the  making of  repairs,  alterations,  or
         improvements,  or due to  accident,  strike,  or  conditions  or events
         beyond  Landlord's  reasonable  control  shall be deemed an eviction of
         Tenant or relieve Tenant from any of Tenant's obligations hereunder. In
         no event  shall  Landlord  be liable to  Tenant  for any  damage to the
         Premises or for any loss,  damage or injury to any property  therein or
         thereon  occasioned  by bursting,  rupture,  leakage or overflow of any
         plumbing or other pipes (including,  without limitation,  water, steam,
         and/or  refrigerant  lines),   sprinklers,   tanks,  drains,   drinking
         fountains or  washstands,  or other similar  cause in,  above,  upon or
         about the  Premises  or the  Building,  except to the extent  caused by
         Landlord's negligence or willful misconduct and then only to the extent
         not covered by Tenant's personal property insurance.



                                       12




                  9.3 Heat Producing Equipment.  Before installing any equipment
         or lights  which  generate an undue  amount of heat in the  Premises or
         using any  high-power  usage  equipment in the  Premises,  Tenant shall
         obtain the written  permission of Landlord,  which permission shall not
         be unreasonably withheld or delayed.  Landlord may refuse to grant such
         permission  unless  Tenant  agrees  to pay the  costs to  Landlord  for
         installation of supplementary  air conditioning  capacity or electrical
         systems reasonably necessitated by such equipment. In addition,  Tenant
         shall,  in  advance,  on the first day of each  month  during the Lease
         term, pay Landlord the reasonable  amount  estimated by Landlord as the
         cost of furnishing  electricity  for the  operation of such  high-power
         usage   equipment  and  the  cost  of  operation  and   maintenance  of
         supplementary  air conditioning  units  necessitated by Tenant's use of
         any  equipment  which  generates an undue amount of heat.  Such advance
         payment  shall  be  adjusted  for any  overpayment  by  Tenant  for the
         previous month's advance payment. Landlord shall be entitled to install
         and  operate at  Tenant's  cost,  a  monitoring/metering  system in the
         Premises  to  measure  the  added  demands  on  electricity,   heating,
         ventilation,  and air conditioning systems resulting from Tenant's heat
         generating or  high-power  equipment  usage,  and  after-hours  service
         requirements.  At  Landlord's  option,  Landlord may require  Tenant to
         remove,   at  Tenant's   expense,   any  such  electrical   systems  or
         supplementary  air  conditioning  system  which  were not  included  in
         Tenant's Initial Improvements upon termination of the Lease, and Tenant
         shall repair any damage to the Premises or the Building  caused by such
         removal.

       10.        ADJUSTMENTS.

                  10.1  Definition.  In addition to the rent,  and as additional
         rent  ("Additional  Rent"),  Tenant  shall  pay  to  Landlord  Tenant's
         Percentage  Share  (as such  term is  defined  in  Section  1.2) of the
         Building and Lot's total cost of the following items:

                           10.1.1 All Property Taxes.  "Property Taxes" shall be
                  defined to include any form of assessment, license, fee, rent,
                  tax, levy, penalty (if a result of Tenant's  delinquency),  or
                  tax (other than net income, estate,  succession,  inheritance,
                  transfer or franchise  taxes),  imposed by an authority having
                  the direct or indirect  power to tax, or by any city,  county,
                  state  or  federal  government  or any  improvement  or  other
                  district  or  division  thereof,  whether  such  tax  is:  (i)
                  determined  by the area of the  Building  or the  parcel  upon
                  which it is  constructed  or any part  thereof or the Rent and
                  other sums  payable  hereunder by Tenant,  including,  but not
                  limited  to,  any gross  income or excise tax levied by any of
                  the foregoing authorities with respect to receipt of such rent
                  or other  sums due under  this  Lease;  (ii) upon any legal or
                  equitable  interest of Landlord  in the 



                                       13




                  Building,  the  parcel  upon  which it is  constructed  or the
                  Premises or any part thereof;  (iii) upon this  transaction or
                  any  document  to  which   Tenant  is  a  party   creating  or
                  transferring  any  interest in the Building or the parcel upon
                  which it is  constructed;  (iv) levied or assessed in lieu of,
                  in substitution for, or in addition to, existing or additional
                  taxes  against  the  Building  or the parcel  upon which it is
                  constructed  whether  or  not  now  customary  or  within  the
                  contemplation  of the parties;  or (v) surcharged  against the
                  parking  area.  Tenant  shall  also pay to  Landlord  Tenant's
                  Percentage  Share (as such term is defined in Section  1.2) of
                  the   reasonable   fees  and  costs  charged  to  Landlord  by
                  Landlord's tax consultant  for tax advisory  services.  If any
                  tenant(s) in the Building  pays its share of real estate taxes
                  as defined herein directly to any taxing authority,  as may be
                  provided in their leases,  the square  footage of their leased
                  premises  shall not be  included  as part of the floor area of
                  the  Building for purposes of  calculating  Tenant's  share of
                  such amount;

                           10.1.2  All  insurance   premiums.   Such   insurance
                  premiums  shall  include all  insurance  premiums for fire and
                  hazard  insurance  ("All-Risk"),   extended  coverage,  public
                  liability, and other insurance which Landlord reasonably deems
                  necessary;

                           10.1.3  All  costs  to  maintain,   repair,  replace,
                  supervise,  insure  (including  provision of public  liability
                  insurance)  and  administer  the  Premises  and  all  portions
                  thereof that Landlord is responsible for under Section 8.1 and
                  all  common  areas of the  Building  and Lot  such as  parking
                  areas,  landscaping,  sidewalks and Building  common areas, if
                  any, Building and Premises equipment and operating systems and
                  other  capital  improvements  to the  Building  and  Premises,
                  parking  lots,  landscaping,   sprinkler  and  alarm  systems,
                  sidewalk,  driveways,  and  the  roof  and  structure  of  the
                  Building,  including  snow  removal  charges  and the costs of
                  maintenance contracts;  provided,  however, that to the extent
                  that any of such  costs to so repair  or  replace  such  items
                  shall be capital  expenditures,  only the annual  amortization
                  (i.e.,  over the  useful  life of such  repair or  replacement
                  determined in accordance  with generally  accepted  accounting
                  principles  ("GAAP") or, in the absence of a controlling  GAAP
                  principle,   over  a  useful  life  reasonably  determined  by
                  Landlord)  of the  costs of such  capital  expenditures,  with
                  interest  at the prime rate (as  published  in The Wall Street
                  Journal),  shall be  included in the costs  described  in this
                  Subparagraph 10.1.3 for each particular year;

                           10.1.4 Any  parking  charges or other  costs  levied,
                  assessed or imposed by, or at the  direction  of, or resulting
                  from  statutes or  regulations,  or  interpretations  thereof,
                  promulgated  by  any  governmental  authority  or



                                       14




                  insurer  in  connection  with  the  use  or  occupancy  of the
                  Premises or the common areas of the Building;

                           10.1.5 Any reasonable  property  management  fees and
                  administrative costs, including,  but not limited to, the cost
                  of  compensation   (including   employment  taxes  and  fringe
                  benefits)  of all persons who  perform  regular and  recurring
                  duties connected with the management,  operation,  maintenance
                  and repair of the  Building,  the Lot,  and/or  the  Premises,
                  their equipment, parking facilities and the common areas;

                           10.1.6 Costs of any energy management system but only
                  if Landlord reasonably determines that the annual cost savings
                  resulting from such energy  management system shall exceed the
                  annual  amortization  thereof,  and  if  Landlord  makes  such
                  reasonable determination,  then the annual amortization (i.e.,
                  over its useful life  determined in accordance  with generally
                  accepted  accounting  principles,  or  in  the  absence  of  a
                  controlling  GAAP  principle,  over a useful  life  reasonably
                  determined  by  Landlord)  of the  cost of such  system,  with
                  interest  at the prime rate (as  published  in The Wall Street
                  Journal),  shall be  included in the costs  described  in this
                  Subparagraph 10.1.6 for each particular year;

                           10.1.7 Any  capital  expenditure  made by Landlord in
                  compliance  with the  requirements  of any federal,  state, or
                  local law or  governmental  regulation  enacted or promulgated
                  after the date of this Lease; provided, however, that only the
                  annual  amortization (i.e., over its useful life determined in
                  accordance with generally accepted accounting  principles,  or
                  in the absence of a controlling GAAP principle,  over a useful
                  life  reasonably  determined  by Landlord) of the cost of such
                  expenditure,  with interest at the prime rate (as published in
                  The Wall  Street  Journal),  shall be  included  in the  costs
                  described  in this  Subparagraph  10.1.7  for each  particular
                  year;

                           10.1.8 The costs  allocated  to the  Building and Lot
                  pursuant  to  the  "Forge  Park  Covenants  and  Restrictions"
                  attached hereto as Exhibit C for insurance, road, sidewalk and
                  landscape maintenance for the development known as Forge Park,
                  including,  without  limitation,  snowplowing and landscaping,
                  roadway,   utility,  lighting  and  drainage  maintenance  and
                  operational  costs,  any costs incurred to supplement the Town
                  of Franklin's  maintenance of public  roadways  located within
                  Forge Park, and reasonable management fees associated with the
                  foregoing.


                                       15





                  10.2 Monthly  Payments.  Upon the  commencement of this Lease,
         Landlord shall submit to Tenant an estimate of monthly  Adjustments for
         the  period  between  the  Lease  Commencement  Date and the  following
         January  1,  and  Tenant  shall  pay  these  estimated  Adjustments  as
         additional  rent  ("Additional  Rent") on a monthly basis  concurrently
         with the  payment  of the  Rent.  Tenant  shall  continue  to make such
         monthly payments for every month of the term until notified by Landlord
         of any change therein.  By March 1 of each year, Landlord shall provide
         to  Tenant a  statement  showing  the total  Adjustments  for the prior
         calendar year and Tenant's  allocable share thereof,  prorated from the
         Lease  Commencement  Date of this Lease  during the first year.  If the
         total  monthly  payments  which Tenant has made for the prior  calendar
         year (or portion thereof during which this Lease was in effect) is less
         than the Tenant's actual share of such  Adjustments,  then Tenant shall
         pay the  difference in a lump sum within twenty (20) days after receipt
         of such  statement from  Landlord.  Any  overpayment by Tenant shall be
         credited towards the Adjustments  next due. The actual  Adjustments for
         the prior year shall be used for purposes of calculating  the estimated
         monthly  Adjustments for the current year with actual  determination of
         such Adjustments  occurring after the end of each calendar year, except
         that in any year in which  resurfacing  of the common  parking  area or
         major roof repairs are planned, Landlord may include the estimated cost
         of such work in the estimated monthly Adjustments. Even though the term
         of this Lease has expired and Tenant has vacated the Premises, when the
         final  determination  is made of Adjustments for the year in which this
         Lease  terminates,  Tenant shall  promptly  pay any  increase  over the
         estimated Adjustments previously paid and, conversely,  any overpayment
         shall be promptly  returned by Landlord to Tenant.  Failure of Landlord
         to submit  statements as called for herein shall not be deemed a waiver
         of Tenant's obligation to pay Adjustments as herein provided.

                  10.3  Further  Adjustment.  In  the  event  that  the  average
         occupancy  level of the  Building  for any year is not  ninety  percent
         (90%)  or  more  of  full  occupancy,  then  the  actual  cost  for the
         Adjustment  Items for such year shall be apportioned  among the tenants
         of the  Building by  Landlord  to reflect  those costs which would have
         occurred had the Building  been ninety  percent (90%)  occupied  during
         such year,  provided that only those components (e.g.,  water expenses)
         of the Adjustment  Items that vary with changes in the occupancy  level
         of the Building shall be affected by this Section 10.3.

       11.  PERSONAL  PROPERTY  TAXES.  Tenant  shall pay,  or cause to be paid,
before delinquency any and all taxes levied or assessed and which become payable
during  the  term  of this  Lease  upon  all  Tenant's  leasehold  improvements,
equipment,  furniture,  fixtures,  and any other  trade  fixtures  and  personal
property located on the Premises.  In the event any or all of Tenant's leasehold
improvements,  equipment,  furniture,  fixtures, and any other personal property
and trade fixtures shall be assessed 


                                       16





and taxed with  Property  Taxes,  Tenant shall pay to Landlord its share of such
taxes  within  twenty  (20) days  after  delivery  to Tenant  by  Landlord  of a
statement  in  writing  setting  forth the amount of such  taxes  applicable  to
Tenant's property.

       12. LIABILITY  INSURANCE.  Tenant shall, at Tenant's expense,  obtain and
keep in force  during  the term of this  Lease a policy  of  commercial  general
liability insurance including personal injury liability,  contractual liability,
products  and  completed  operations  liability,  insuring  Landlord  and Tenant
against  any  liability  arising  out  of  the  ownership,   use,  occupancy  or
maintenance of the Premises.  Such insurance  shall be in the amount of not less
than Five Million and no/100ths  Dollars  ($5,000,000.00)  for bodily injury and
property  damage for any one accident or occurrence;  provided that the products
liability  component  thereof shall be in an amount of not less than $2,000,000.
Fire legal liability  insurance in an amount of not less than Fifty Thousand and
no/100ths Dollars  ($50,000.00)  shall also be obtained and kept in force during
the term of this Lease at Tenant's  expense.  The limit of any of such insurance
shall not limit the  liability  of Tenant  hereunder.  Tenant may  provide  this
insurance  under a blanket  policy,  provided that such  insurance  shall have a
landlord's   protective  liability  endorsement   specifically   describing  the
Premises. If Tenant fails to procure and maintain such insurance,  Landlord may,
but shall not be required to, procure and maintain the same, at Tenant's expense
to be  reimbursed  by Tenant  within  twenty  (20) days of written  demand.  All
insurance  required  to be  obtained  by  Tenant  hereunder  shall be  issued by
companies  reasonably  acceptable to Landlord.  Prior to the Lease  Commencement
Date,  Tenant  shall  deliver to Landlord  certified  copies of policies  or, at
Landlord's discretion,  certificates of liability insurance required herein with
loss  payable  clauses  satisfactory  to  Landlord.  Any  deductible  under such
insurance  policy in excess of Two Thousand Five Hundred and  no/100ths  Dollars
($2,500.00)  must be approved  by Landlord in writing  prior to issuance of such
policy. No policy shall be cancelable or subject to reduction of coverage except
upon thirty (30) days' prior written notice to Landlord. All such policies shall
name  Landlord  and its  agents as named  insureds,  shall be written as primary
policies not contributing  with and not in excess of coverage which Landlord may
carry, and shall be written with an insurance carrier reasonably satisfactory to
Landlord. From time to time, as Landlord deems necessary, the insurance coverage
and limits of such coverage required hereunder will be reviewed by Landlord, and
Tenant  will be  notified  of any  revisions  or  increases  thereto  reasonably
required by Landlord.  Tenant  shall  obtain any revised or  increased  coverage
required  by Landlord  within  thirty  (30) days of any such  notification  from
Landlord.

       13. FIRE  INSURANCE - FIXTURES AND  EQUIPMENT.  Tenant shall  maintain in
full force and effect on all trade  fixtures and  equipment  and other  personal
property on the Premises,  a policy of all risk property  insurance covering the
full  replacement  value of such  property.  During the term of this Lease,  the
proceeds  from any such  policy  of  insurance  shall be used for the  repair or
replacement  of the fixtures and  equipment so insured.  Landlord  shall have no
interest in the insurance upon


                                       17




Tenant's equipment and fixtures and will sign all documents reasonably necessary
or proper in  connection  with the  settlement  of any claim or loss by  Tenant.
Landlord will not carry insurance on Tenant's possessions.  Tenant shall furnish
Landlord with  certificate of insurance  evidencing  that the  requirements  set
forth  herein  are in full force and  effect.  Any  deductible  in excess of Two
Thousand Five Hundred and no/100ths  Dollars  ($2,500.00)  under such  insurance
must be approved in writing by Landlord prior to issuance of such policy. Within
twenty  (20) days of  Landlord's  demand,  Tenant  shall  provide  Landlord,  at
Tenant's  expense,  with such increased amount of existing  insurance,  and such
other  insurance  as Landlord or  Landlord's  lender may  reasonably  require to
afford Landlord and Landlord's lender adequate protection. Tenant shall promptly
provide  Landlord  with notice of loss or damage to property  after such loss or
damage occurs.  Tenant shall provide and keep in force with companies reasonably
satisfactory to Landlord,  business interruption and/or loss of rental insurance
in an amount  equivalent  to twelve (12) months Rent and  Additional  Rent which
shall not contain a deductible  greater than One Thousand and no/100ths  Dollars
($1,000.00).  Tenant shall furnish  Landlord with  certificate of such insurance
naming  Landlord as an  additional  insured.  No policy shall be  cancelable  or
subject to  reduction  of coverage  except upon thirty (30) days' prior  written
notice to Landlord.

       14.        DESTRUCTION AND DAMAGE.

                  14.1 Casualty Damage - Insured.  If the Building is damaged by
         fire or  other  perils  covered  by  extended  coverage  insurance  the
         following provisions shall apply:

                           14.1.1  Total  Destruction.  In the  event  of  total
                  destruction  of the Building or the Premises,  Landlord  shall
                  elect either to promptly  commence  repair and  restoration of
                  the  destroyed  area  and  prosecute  the same  diligently  to
                  completion,  in which  event this Lease  shall  remain in full
                  force and effect,  or not to repair or restore  the  destroyed
                  area,  in which  event this Lease shall  terminate.  In either
                  case,  Landlord  shall  give  Tenant  written  notice  of  its
                  intention  within sixty (60) days after the occurrence of such
                  destruction.  If Landlord  elects not to restore the destroyed
                  area under this Section 14.1.1,  this Lease shall be deemed to
                  have terminated as of the date of such total destruction.

                           14.1.2 Partial Destruction. In the event of a partial
         destruction  of the  Building  to an extent not  exceeding  twenty-five
         percent  (25%) of the full  insurable  value  thereof and if the damage
         thereto is such that the  Building  may be repaired or restored  within
         ninety (90) days from the date of such  destruction  and Landlord  will
         receive  insurance  proceeds  sufficient  to  cover  the  cost  of such
         repairs, Landlord shall use reasonable efforts to promptly commence and
         proceed  diligently with the work of repair and  restoration,  in which
         event the


                                       18




         Lease shall  continue  in full force and effect;  or if such repair and
         restoration  requires  longer than ninety (90) days or the cost thereof
         exceeds  twenty-five  percent (25%) of the full insurable value thereof
         or if the insurance proceeds payable to Landlord will not be sufficient
         to cover such cost, Landlord may elect either to so repair and restore,
         in which  event the Lease shall  continue in full force and effect,  or
         not to repair,  reconstruct or restore,  in which event the Lease shall
         terminate. In either case, Landlord shall give written notice to Tenant
         of its intention  within sixty (60) days after the destruction  occurs.
         If  Landlord  elects not to restore the  Building,  this Lease shall be
         deemed to have terminated as of the date of such partial destruction.

                  14.2 Release.  Upon any termination of this Lease under any of
         the provisions of this article,  the parties shall be released  thereby
         without further  obligation to the other from the date of the damage or
         destruction,  except for items which have  theretofore  accrued and are
         then unpaid.

                  14.3 Rent Abatement. In the event of repair and restoration as
         herein provided,  the monthly  installments of Rent and Additional Rent
         shall be abated  proportionately in the ratio which the Tenant's use of
         the   Premises   is  impaired   during  the  period  of  such   repair,
         reconstruction or restoration; provided, however, if the damage is due,
         directly  or  indirectly,  to the fault or neglect  of  Tenant,  or its
         officers, contractors,  licensees, agents, servants, employees, guests,
         invitees or visitors,  there shall be no  abatement of Rent,  except to
         the extent  Landlord  receives  proceeds from any applicable  insurance
         policy of Tenant to compensate Landlord for loss of Rent. Except to the
         extent of the rent  abatement  referred to above in this Section  14.3,
         Tenant shall not be entitled to any compensation or damages for loss of
         use of the whole or any part of said Premises and/or any  inconvenience
         or annoyance  occasioned  by such  damage,  repair,  reconstruction  or
         restoration.

                  14.4  Delay.  Tenant  shall  not be  released  from any of its
         obligations  under  this  Lease  except  to the  extent  and  upon  the
         conditions expressly stated in this article.  Notwithstanding  anything
         to the contrary  contained in this article,  if Landlord has elected to
         repair and restore the Premises and is thereafter  delayed or prevented
         from  repairing or restoring the Premises  within nine (9) months after
         the  occurrence of such damage or destruction by reason of acts of God,
         war,  governmental  restrictions,  inability  to procure the  necessary
         labor or  materials,  or other cause  beyond the  control of  Landlord,
         Landlord,  at Landlord's option, shall be relieved of its obligation to
         make such  repairs or  restoration  and,  if  Landlord  exercises  such
         option,  Tenant shall be released from its obligations under this Lease
         that first arise or accrue after the end of such nine (9) month period.



                                       19




                  14.5  Uninsured  Damage.  If  damage  to the  Building  or the
         Premises is due to any cause other than fire or other peril  covered by
         extended  coverage  insurance,  Landlord  may elect to  terminate  this
         Lease.

                  14.6 Repair Obligation.  If Landlord is obligated to or elects
         to repair or  restore  as herein  provided,  Landlord  shall  repair or
         restore only those  portions of the  Building  and Premises  which were
         originally  provided  at  Landlord's   expense;   and  the  repair  and
         restoration of areas or items not provided at Landlord's  expense shall
         be the obligation of Tenant.

                  14.7 End of Term.  Notwithstanding  anything  to the  contrary
         contained in this article,  Landlord may elect to terminate  this Lease
         in the event of damage to the Building or the Premises occurring during
         the last  (12)  months  of the  Lease  or any  extension  thereof;  and
         Landlord  shall  not have any  obligation  to  repair  or  restore  the
         Premises  or the  Building  during the last  twelve (12) months of this
         Lease or any extension  thereof.  Upon such termination Tenant shall be
         released of its obligations under this Lease that first arise or accrue
         after the date of such termination.

       15. ALTERATIONS AND ADDITIONS: REMOVAL OF FIXTURES. Tenant shall not make
or allow to be made any  alterations,  additions  or  improvements  to or on the
Premises  without  first  obtaining the written  consent of Landlord;  provided,
however,  that,  subject to  Landlord's  receipt and approval of final plans and
specifications  therefor,  Landlord shall not unreasonably withhold or delay its
consent to any items of the Tenant Initial  Improvements  or other  alterations,
additions or improvements that will not adversely affect the Building  structure
or any Building systems.  Any such alterations,  additions or improvements made,
including,  but not limited to, wall  covering,  paneling and  built-in  cabinet
work,  but  excepting  movable  furniture and trade  fixtures,  shall be made at
Tenant's sole expense, according to plans and specifications approved in writing
by  Landlord  (which  approval  shall be  subject  to the  prior  sentence),  in
compliance with all applicable laws, by a licensed contractor, and in a good and
workmanlike  manner  conforming in quality and design with the Premises existing
as of the Lease  Commencement Date and the Forge Park Covenants and Restrictions
set forth in Exhibit  C, shall not  diminish  the value of the  Building  or the
Premises and shall at once become a part of the realty and shall be  surrendered
with the Premises.  Without  limiting the  generality of the  immediately  prior
sentence,   in  making  the  Tenant  Initial  Improvements  and  any  subsequent
alterations or additions to the Premises,  Tenant shall be solely responsible to
make, at Tenant's sole cost and expense,  all alterations,  improvements  and/or
additions to the Premises  required by the Americans With  Disabilities  Act and
all  regulations  promulgated  thereunder  (collectively,  the "ADA");  it being
understood, however, that Tenant may use a portion of the Construction Costs Cap
described in Section 4.1 for the  alterations,  etc.  required  under the ADA in
connection  with  the  Tenant  Initial   Improvements  and/or  Tenant's  initial




                                       20




operations at the Premises.  Upon the  expiration or sooner  termination  of the
term hereof,  Tenant shall,  upon written  demand by Landlord,  at Tenant's sole
expense, with due diligence, remove any alterations,  additions, or improvements
made by Tenant,  designated by Landlord to be removed,  and repair any damage to
the  Premises  caused by such  removal.  Tenant  shall remove all of its movable
property and trade fixtures which can be removed  without damage to the Premises
at the  termination  of this Lease,  either by  expiration  of the term or other
cause, and shall pay Landlord any damages for injury to the Premises or Building
resulting from such removal.  If Tenant shall fail to remove any of its property
of any nature whatsoever from the Premises or the Building at the termination of
th is  Lease or when  Landlord  has the  right  of  reentry,  Landlord  may,  in
accordance  with the  provisions of  applicable  statutes  governing  commercial
landlord and tenant matters,  remove and store such property  without  liability
for loss  thereof or damage  thereto,  such storage to be for the account and at
the  expense of  Tenant.  If Tenant  shall not pay the cost of storing  any such
property  after it has been  stored  for a period of  thirty  (30) days or more,
Landlord  may,  at its  option,  sell,  or  permit  to be sold,  any or all such
property at public or private  sale, in such manner and at such times and places
as Landlord, in its sole discretion,  may deem proper, without notice to Tenant,
unless  notice is  required  under  applicable  statutes,  and  shall  apply the
proceeds of such sale:  first,  to the cost and expense of such sale,  including
reasonable  attorneys'  fees actually  incurred;  second,  to the payment of the
costs or charges  for storing any such  property;  third,  to the payment of any
other sums of money which may then be or  thereafter  become due  Landlord  from
Tenant  under any of the terms  hereof;  and  fourth,  the  balance,  if any, to
Tenant.

       16.  ACCEPTANCE OF PREMISES.  Tenant shall be deemed to have accepted the
Premises on the date that Landlord  permits  Tenant to access the Premises under
Section 2.4 in their "as is"  condition,  without any  obligation by Landlord to
construct any improvements or alterations or perform any work therein.

       17.  INTENTIONALLY OMITTED

       18.  ACCESS.  Tenant  shall  permit  Landlord and its agents to enter the
Premises at all reasonable times and upon reasonable  notice (except in the case
of emergency, when no notice shall be required) to inspect the same; to show the
Premises to  prospective  tenants,  or  interested  parties such as  prospective
lenders and purchasers;  to clean,  repair, alter or improve the Premises or the
Building;  to  discharge  Tenant's  obligations  when Tenant has failed to do so
within a reasonable time after written notice from Landlord;  to post notices of
nonresponsibility  and similar  notices and "For Sale" signs;  and to place "For
Lease"  signs upon or adjacent to the Building or the  Premises  (which  signage
does not interfere  with Tenant's  signage or operations at the Premises) at any
time within seven (7) months of the expiration of the term of this Lease. Tenant
shall  permit  Landlord  and its agents to enter the Premises at any time in the
event of an emergency. When reasonably necessary, Landlord may temporarily



                                       21




close  entrances,  doors,  corridors,  elevators  or  other  facilities  without
liability  to Tenant  by  reason of such  closure  and  without  such  action by
Landlord  being  construed  as an eviction of Tenant or a release of Tenant from
the duty of  observing  and  performing  any of the  provisions  of this  Lease;
provided that Landlord  shall use  reasonable  efforts to minimize the period of
such closure.

       19.  WAIVER  OF  SUBROGATION.  Whether  the loss or  damage is due to the
negligence of Tenant or Tenant's agents or employees, or any other cause, Tenant
hereby releases Landlord and Landlord's agents and employees from responsibility
for and waives its entire  claim of  recovery  for (i) any loss or damage to the
real or  personal  property of Tenant  located in the  Building,  including  the
Building itself,  arising out of any of the perils which are covered by Tenant's
property  insurance policy,  with extended coverage  endorsements,  or (ii) loss
resulting from business  interruption or loss of rental income, at the Premises,
arising  out  of any  of  the  perils  which  may  be  covered  by the  business
interruption  or by the loss of rental income  insurance  policy held by Tenant.
Tenant  shall cause its  insurance  carrier(s)  to consent to such waiver of all
rights of subrogation  against  Landlord.  Upon Landlord's  request Tenant shall
provide  Landlord  a copy of any such  insurance  policies  evidencing  Tenant's
waiver of subrogation rights against Landlord.

       20.  INDEMNIFICATION.  Tenant shall indemnify and hold harmless Landlord,
its agents, employees,  officers,  directors, partners and shareholders from and
against any and all liabilities,  judgments,  demands, causes of action, claims,
losses,  damages,  costs and expenses,  including reasonable attorneys' fees and
costs, arising out of the use, occupancy,  conduct,  operation, or management of
the  Premises  by, or the willful  misconduct  or  negligence  of,  Tenant,  its
officers, contractors, licensees, agents, servants, employees, guests, invitees,
or visitors in or about the Building or arising from any breach or default under
this Lease by Tenant, or arising from any accident, injury, or damage, howsoever
and by whomsoever  caused, to any person or property,  occurring in or about the
Building or Premises.  This  indemnification  shall survive  termination of this
Lease.  This  provision  shall not be construed to make Tenant  responsible  for
loss,  damage,  liability or expense resulting from injuries to third parties to
the extent caused by the negligence of Landlord,  or its officers,  contractors,
licensees, agents, employees, or invitees.

       21.  ASSIGNMENT AND SUBLETTING.

                  21.1 Landlord's  Consent.  Tenant shall not assign this Lease,
         or sublease all or any part of the  Premises,  or permit the use of the
         Premises by any party  other than  Tenant,  without  the prior  written
         consent of Landlord, subject to the last two sentences of Section 21.2.
         When Tenant requests Landlord's consent to such assignment or sublease,
         it shall  notify  Landlord  in writing  of the name and  address of the
         proposed  assignee or  subtenant  and the



                                       22
         




         nature and  character  of the  business  of the  proposed  assignee  or
         subtenant and shall provide financial  information  including financial
         statements  of the proposed  assignee or  subtenant.  Tenant shall also
         provide  Landlord  with a copy of the  proposed  sublet  or  assignment
         agreement.  Landlord  shall  have the option  (to be  exercised  within
         thirty (30) days from the  submission  of  Tenant's  request) to cancel
         this Lease as of the commencement  date stated in the proposed sublease
         or assignment.

                  21.2  Criteria.  In  determining  whether  or not to grant its
         consent to a proposed sublet or assignment,  Landlord shall be entitled
         to consider all reasonable criteria including,  but not limited to, the
         following:  (i) whether or not the  proposed  subtenant  or assignee is
         engaged in a business  which,  and the use of the Premises will be in a
         manner which,  is in keeping with the then  character and nature of all
         other  tenancies  in the  Building,  (ii)  the  use to be  made  of the
         Premises by the proposed  subtenant or assignee  does not conflict with
         any so-called  "exclusive" use then in favor of any other tenant of the
         Building,  and that  such use  would  not be  prohibited  by any  other
         portion of this  Lease,  including,  but not  limited to, any rules and
         regulations  then in effect,  or under  applicable  law, (iii) that the
         proposed  subtenant  or  assignee is a  reputable  party of  reasonable
         financial worth and stability in light of the responsibilities involved
         and does not impose a greater  load upon the  Premises and the Building
         services  (such as elevator,  janitorial and security  services),  then
         imposed by  Tenant,  (iv) that the  sublease  or  assignment  agreement
         requires  payment of the rent and other  amounts as  required of Tenant
         hereunder  with respect to the space being  subleased or assigned which
         are in no event less than that being  offered by  Landlord  for similar
         space in the Building under leases then being negotiated,  and (v) that
         Tenant shall  provide  Landlord  with  reasonable  proof of (i),  (ii),
         (iii),  and (iv),  and (vi) Tenant is not in default  hereunder  at the
         time  it  makes  its  request  for  such  consent  or at the  time  the
         assignment or sublet is to take effect. Subject to the other provisions
         of  this  Article  21,  including,   without   limitation,   Landlord's
         cancellation rights in Section 21.1 and Landlord's consideration of the
         above criteria,  Landlord shall not unreasonably  withhold or delay its
         consent to a request by Tenant to sublet the Premises.  Notwithstanding
         the  foregoing,   Landlord's  consent  shall  not  be  required  for  a
         subletting  of the Premises to an entity that  controls,  is controlled
         by, or is under common control with, Tenant (an "Affiliate  Sublease").
         Subject to the  provisions  of Section 21.3 below,  Landlord  shall not
         unreasonably  withhold  or delay its  consent to a request by Tenant to
         assign this Lease to an entity (the  "Assignee  Entity")  which results
         from a merger or  consolidation  with Tenant or which  purchases all of
         Tenant's  assets,  provided that such  Assignee  Entity has a net worth
         immediately after such merger,  consolidation or acquisition that is at
         least  equal to or  greater  than the  greater  of (a) the net worth of
         Tenant as of the date hereof or (b) the net worth of Tenant immediately
         prior to the assignment of this Lease to the Assignee Entity.



                                       23




                  21.3 Approved Subleases and Assignments.  If Landlord approves
         an  assignment  or sublease  as herein  provided,  Tenant  shall pay to
         Landlord,  as additional rent due under this Lease, fifty percent (50%)
         of the excess,  if any, of the rent and any additional  rent payable by
         the assignee or subtenant to Tenant over the Rent plus  Additional Rent
         allocable to that part of the Premises  affected by such  assignment of
         sublease  pursuant  to the  provisions  of  this  Lease.  No  Affiliate
         Sublease and no consent to any assignment or sublease shall  constitute
         a consent to a further subletting or assignment nor a further waiver of
         the  provisions  of this section,  and all  subsequent  assignments  or
         subleases  shall be subject to the  provisions  of this  Section 21. An
         assignee of Tenant,  at the option of Landlord,  shall become  directly
         liable to Landlord  for all  obligations  of Tenant  hereunder,  but no
         sublease or assignment by Tenant shall relieve  Tenant of any liability
         hereunder. Except for an Affiliate Sublease, any assignment or sublease
         without  Landlord's  consent shall be void, and shall, at the option of
         the Landlord,  constitute a default under this Lease. In the event that
         Landlord  shall consent to a sublease or assignment  hereunder,  Tenant
         shall pay Landlord's  reasonable legal fees, not to exceed Five Hundred
         and no/100ths Dollars ($500.00) per transaction, incurred in connection
         with the  processing  of  documents  necessary  to the  giving  of such
         consent.

       22.  ADVERTISING.  Tenant shall not display any sign,  graphics,  notice,
picture,  or poster, or any advertising matter whatsoever,  anywhere in or about
the  Premises  or the  Building  at places  visible  from  anywhere  outside the
Building or at the entrance to the Premises  without first obtaining  Landlord's
written consent hereto,  such consent to be at Landlord's sole  discretion.  Any
such consent by Landlord  shall be upon the  understanding  and  condition  that
Tenant will maintain the sign in good  condition and remove the same at Tenant's
expense upon the expiration or sooner  termination  of this Lease.  Tenant shall
repair any damage to the Premises or the Building caused by such removal.

       23. LIENS.  Tenant shall keep the Premises and the Building free from any
liens  arising  out of any work  performed,  materials  ordered  or  obligations
incurred by or on behalf of Tenant,  and Tenant  hereby  agrees to indemnify and
hold  Landlord,  its  agents,  employees,  independent  contractors,   officers,
directors,  partners,  and  shareholders  harmless from any  liability,  cost or
expense for such liens.  Tenant shall cause any such lien imposed to be released
or record by payment or posting of the proper bond acceptable to Landlord within
twenty (20) days after the earlier of imposition of the lien or written  request
by Landlord.  Tenant shall give Landlord written notice of Tenant's intention to
perform work on the Premises  which might result in any claim of lien,  at least
ten (10) days prior to the  commencement of such work to enable Landlord to post
and record a Notice of  Nonresponsibility  or other notice  deemed proper before
commencement  of any such work.  If Tenant  fails to remove any lien



                                       24




within  the  prescribed  twenty  (20) day  period,  then  Landlord  may do so at
Tenant's expense and Tenant's reimbursement to Landlord for such amount shall be
deemed  Additional  Rent. Such  reimbursement  shall include all sums disbursed,
incurred or deposited  by Landlord,  including  Landlord's  costs,  expenses and
reasonable attorneys' fees with interest thereon at the maximum rate of interest
permitted by law.

       24.        DEFAULT.

                  24.1  Tenant's  Default.  A default under this Lease by Tenant
         shall exist if any of the following occurs:

                           24.1.1 If Tenant fails to pay Rent,  Additional  Rent
                  or any other sum required to be paid hereunder within five (5)
                  business days of when due; or

                           24.1.2 If Tenant fails to perform any term,  covenant
                  or condition of this Lease except those  requiring the payment
                  of money,  and Tenant fails to cure such breach  within thirty
                  (30) days after written notice from Landlord where such breach
                  could  reasonably be cured within such thirty (30) day period;
                  provided,   however,   that  where  such  failure   could  not
                  reasonably  be cured  within the thirty (30) day period,  that
                  Tenant  shall  not  be  in  default  if  it   commences   such
                  performance  within the thirty (30) day period and  diligently
                  thereafter prosecutes the same to completion; or

                           24.1.3 If Tenant  makes a general  assignment  of its
                  assets for the benefit of its creditors; or

                           24.1.4  If  the  sequestration  or  attachment  of or
                  execution on any material part of Tenant's  personal  property
                  essential  to the conduct of  Tenant's  business  occurs,  and
                  Tenant  fails to obtain a return or release  of such  personal
                  property within sixty (60) days  thereafter,  or prior to sale
                  pursuant to such sequestration,  attachment or levy, whichever
                  is earlier; or

                           24.1.5   If   Tenant   fails   to   continuously   or
                  uninterruptedly  conduct  its  business  in the  Premises  for
                  longer than  thirty (30)  consecutive  business  days  through
                  Tenant's own fault,  or Tenant shall have abandoned or vacated
                  the Premises  (provided  that such  abandonment or vacation of
                  the Premises  shall not be a default  under this Lease so long
                  as Tenant  is in  compliance  with all of the other  terms and
                  provisions of this Lease); or

                           24.1.6 If a court makes or enters any decree or order
                  other than  under the  bankruptcy  laws of the  United  States
                  adjudging  Tenant to be  


                                       25




                  insolvent,  or approving as properly filed a petition  seeking
                  reorganization  of  Tenant,  or  directing  the  winding up or
                  liquidation  of Tenant,  and such  decree or order  shall have
                  continued for a period of sixty (60) days.

                           24.1.7  The  chronic  delinquency  by  Tenant  in the
                  payment  of  monthly  Rent,  or any  other  periodic  payments
                  required  to  be  paid  by  Tenant  under  this  Lease,  shall
                  constitute a default. "Chronic delinquency" shall mean failure
                  by Tenant to pay Rent, or any other periodic payments required
                  to be paid by Tenant under this Lease within five (5) business
                  days after  written  notice  thereof  for any three (3) months
                  (consecutive or  nonconsecutive)  during any twelve (12) month
                  period. In the event of a chronic  delinquency,  at Landlord's
                  option, Landlord shall have the additional right to thereafter
                  require that two months of Rent be paid by Tenant, in advance.

                  24.2  Remedies.  Upon a default  which  continues  beyond  the
         expiration  of any  applicable  cure periods,  Landlord  shall have the
         following  remedies,  in  addition  to all other  rights  and  remedies
         provided by law or otherwise  provided in this Lease, to which Landlord
         may resort cumulatively or in the alternative:

                           24.2.1 Landlord may continue this Lease in full force
                  and effect,  and this Lease  shall  continue in full force and
                  effect as long as Landlord does not terminate this Lease,  and
                  Landlord shall have the right to collect Rent, Additional Rent
                  and other charges when due.

                           24.2.2  Landlord may terminate this Lease at any time
                  by either (i) giving written notice to that effect, or (ii) by
                  entering, without demand or notice, into and upon the Premises
                  (or any part  thereof in the name of the  whole),  forcibly if
                  necessary,  with the express purpose of repossessing  the same
                  as of its former  estate.  On the giving of the notice or upon
                  such entry (and without  prejudice to any remedies which might
                  otherwise  be available  for arrears of rent or other  charges
                  due  hereunder  or  preceding  breach of covenant  and without
                  prejudice  to Tenant's  liability  for damages as  hereinafter
                  stated), this Lease and all of Tenant's rights in the Premises
                  shall terminate. Upon such termination, Tenant shall surrender
                  and vacate the Premises in the  condition  required by Section
                  26, and  Landlord  may  re-enter  and take  possession  of the
                  Premises  and  eject  Tenant  or any of  Tenant's  subtenants,
                  assignees or other person or persons  claiming any right under
                  or through  Tenant or eject some and not others or eject none.
                  This Lease may also be terminated  by a judgment  specifically
                  providing for termination.  Any termination under this section
                  shall not release  Tenant from the payment of any sum then due
                  Landlord  or from any claim for  damages  or Rent,  Additional
                  Rent or other sum 



                                       26





                  previously accrued or then accruing against Tenant.  Upon such
                  termination Tenant shall be liable immediately to Landlord for
                  all costs  Landlord  incurs in  reletting  the Premises or any
                  part  thereof,   including,   without   limitation,   broker's
                  commissions,  expenses of cleaning and constructing  leasehold
                  improvements  in the Premises  required by the  reletting  and
                  like costs.  Reletting  may be for a period  shorter or longer
                  than the remaining  term of this Lease.  Acts of  maintenance,
                  efforts to relet the Premises or the appointment of a receiver
                  on Landlord's  initiative to protect Landlord's interest under
                  this Lease  shall not  constitute  a  termination  of Tenant's
                  right to possession. On termination, Landlord has the right to
                  remove  all  Tenant's  personal  property  and  store  same at
                  Tenant's cost and to recover from Tenant as damages:

                                    (a) The worth at the time of award of unpaid
                           Rent,  Additional Rent and other sums due and payable
                           which  had been  earned  at the time of  termination;
                           plus

                                    (b) The  worth  at the  time of award of the
                           amount by which the unpaid Rent,  Additional Rent and
                           other  sums due and  payable  which  would  have been
                           payable  after  termination  until  the time of award
                           exceeds  the  amount of such  rent  loss that  Tenant
                           proves could have been reasonably avoided; plus

                                    (c) The  worth  at the  time of award of the
                           amount by which the unpaid Rent,  Additional Rent and
                           other  sums due and  payable  for the  balance or the
                           term  after the time of award  exceeds  the amount of
                           such rent loss that Tenant proves could be reasonably
                           avoided; plus

                                    (d) Any other amount  necessary  which is to
                           compensate Landlord for all the detriment proximately
                           caused  by  Tenant's   failure  to  perform  Tenant's
                           obligations  under  this  Lease,  or  which,  in  the
                           ordinary course of things,  would be likely to result
                           therefrom including, without limitation, any costs or
                           expenses  incurred  by  Landlord:   (i)  in  retaking
                           possession  of the  Premises;  (ii)  in  maintaining,
                           repairing,    preserving,    restoring,    replacing,
                           cleaning,  altering or rehabilitating the Premises or
                           any  portion   thereof,   including   such  acts  for
                           reletting  to a new  tenant  or  tenants;  (iii)  for
                           leasing  commissions;  or (iv)  for any  other  costs
                           necessary or appropriate to relet the Premises.

                           The  "worth  at the  time of  award"  of the  amounts
                  referred  to in  Sections  24.2.2(a)  and (b) is  computed  by
                  allowing  interest at the


                                       27




                  maximum  interest  rate  allowed by law on the unpaid rent and
                  other sums due and payable from the  termination  date through
                  the date of  award.  The  "worth  at the time of award" of the
                  amount  referred  to  in  Section  24.2.2(c)  is  computed  by
                  discounting  such amount at the  discount  rate of the Federal
                  Reserve  Bank of Boston at the time of award plus one  percent
                  (1%). Tenant waives redemption or relief from forfeiture under
                  any present or future  law, in the event  Tenant is evicted or
                  Landlord  takes  possession  of the  Premises by reason of any
                  default of Tenant hereunder.

                           24.2.3 Tenant  further  covenants as  additional  and
                  cumulative  obligations  after  any  such  termination  to pay
                  punctually  to  Landlord  all the sums and to perform  all the
                  obligations which Tenant covenants in this Lease to pay and to
                  perform in the same  manner and to the same  extent and at the
                  same  time  as if  the  Lease  had  not  been  terminated.  In
                  calculating  the amount to be paid by Tenant  pursuant  to the
                  preceding  sentence  Tenant shall be credited  with any amount
                  paid to Landlord under Section  24.2.2,  and also with the net
                  proceeds of any rent  obtained by  Landlord by  reletting  the
                  Premises,  after  deducting  all  of  Landlord's  expenses  in
                  connection with such reletting.

       25. SUBORDINATION.  Landlord represents that the Building and Lot are not
currently  encumbered by a mortgage.  Unless  Landlord  exercises the option set
forth below in this Section 25, this Lease shall be superior to and shall not be
subordinate to any mortgage or other  voluntary lien on the Premises.  By notice
to Tenant, which notice may be recorded by Landlord with the Norfolk Registry of
Deeds and/or the Norfolk  Registry  District of the Land Court,  Landlord  shall
have  the  option  to  unilaterally  subordinate  this  Lease to the lien of any
mortgage,  deed of trust,  ground lease or underlying  lease now or hereafter in
force  against the  Premises,  and to all advances  made or hereafter to be made
upon the security  thereof;  provided that such  subordination by Landlord shall
not be effective  unless  Tenant  receives an agreement  from the holder of such
mortgage or deed of trust or the landlord of such lease or ground lease, in such
holder or landlord's  customary form, not to disturb Tenant's  possession of the
Premises  so long as Tenant is not in default  under this  Lease.  Tenant  shall
execute and return to Landlord any subordination documents requested by Landlord
or Landlord's  mortgagee or landlord within ten (10) business days of Landlord's
written  request,  it being  understood,  however,  that Tenant's  failure to so
execute  and return such  documents  shall not affect  Landlord's  ability to so
subordinate this Lease.

         In the event any  proceedings  are brought for  foreclosure,  or in the
event of the  exercise of the power of sale under any  mortgage or deed of trust
made by the Landlord covering the Premises, Tenant shall attorn to the purchaser
at any such


                                       28




foreclosure,  or to the grantee of a deed in lieu of foreclosure,  and recognize
such purchaser or grantee as the Landlord under this Lease.

       26.  SURRENDER OF POSSESSION.  Upon expiration of the term of this Lease,
Tenant shall  promptly and  peacefully  surrender the Premises to Landlord in as
good  condition  as when  received  by Tenant  from  Landlord  or as  thereafter
improved,  reasonable  use and  wear and tear  excepted,  all to the  reasonable
satisfaction of Landlord. If the Premises are not surrendered in accordance with
the  terms of this  Lease,  Tenant  shall  indemnify  Landlord  and its  agents,
employees,   independent  contractors,   officers,   directors,   partners,  and
shareholders against any loss or liability including reasonable  attorneys' fees
and costs, and including liability to succeeding  tenants,  resulting from delay
by Tenant in so surrendering the Premises.  This  indemnification  shall survive
termination of this Lease.

       27.  NON-WAIVER.  Waiver by Landlord or Tenant of any breach of any term,
covenant or condition herein contained shall not be deemed to be a waiver of any
subsequent  breach of the same or any other term,  covenant or condition of this
Lease.

       28. HOLDOVER.  If Tenant shall,  without the written consent of Landlord,
hold over after the expiration of the term of this Lease,  such tenancy shall be
deemed a month-to-month  tenancy, which tenancy may be terminated as provided by
applicable state law. During such tenancy, Tenant agrees to (a) pay to Landlord,
each month, one hundred  seventy-five  percent (175%) of the Rent and Additional
Rent  payable  by Tenant for the last  month of the term of this  Lease,  (b) be
bound by all of the terms, covenants and conditions herein specified,  so far as
applicable and (c) be liable to Landlord for any damages incurred by Landlord as
a result of such holdover.

       29.        CONDEMNATION.

                  29.1  Substantial  Taking.  If twenty percent (20%) or more of
the  Premises  or of such  portions of the  Building as may be required  for the
reasonable use of the Premises, are taken by eminent domain or sale under threat
of condemnation by eminent domain, this Lease shall  automatically  terminate as
of the date title vests in the condemning  authority,  and all Rent,  Additional
Rent, and other payments shall be paid to that date.

                  29.2 Partial  Taking.  In case of a taking of less than twenty
         percent  (20%)  of the  Premises  that  does not  materially  adversely
         interfere  with Tenant's  operations,  or a portion of the Building not
         required  for the  reasonable  use of the  Premises,  this Lease  shall
         continue  in full force and  effect,  and the Rent  shall be  equitably
         reduced based on the proportion by which the floor area of the Premises
         is reduced, such reduction to be effective as of the date title to such
         portion vests in the condemning authority.


                                       29




                  29.3  Awards  and  Damages.  Landlord  reserves  all rights to
         damages to the  Premises  for any  partial or entire  taking by eminent
         domain, and Tenant hereby assigns to Landlord any right Tenant may have
         to such  damages  or award,  and  Tenant  shall  make no claim  against
         Landlord or the condemning authority for damages for termination of the
         leasehold interest or interference with Tenant's business. Tenant shall
         have the  right to claim  and  recover  from the  condemning  authority
         compensation  for any loss which Tenant may incur for  Tenant's  moving
         expenses, business interruption or taking of Tenant's personal property
         (not including Tenant's leasehold interest) and Tenant's trade
         fixtures,  provided  that such  damages may be claimed only if they are
         awarded  separately in the eminent domain proceedings and not out of or
         as part of the damages recoverable by Landlord.

       30.  NOTICES.  All notices and demands which may be required or permitted
to be given to either party hereunder shall be in writing,  and shall be sent by
United States mail, postage prepaid to the addresses set out in Section 1.5, and
to such other person or place as each party may from time to time designate in a
notice to the other.  Notice  shall be deemed  given upon the  earlier of actual
receipt or  seventy-two  (72) hours  after  deposit in the United  States  mail,
postage prepaid.

       31. MORTGAGE  PROTECTION.  Tenant agrees to give any mortgagee(s)  and/or
trust deed holder(s), by registered mail, a copy of any notice of default served
upon the  Landlord,  provided that prior to such notice Tenant has been notified
in writing (by way of notice of assignment of rents and leases, or otherwise) of
the addresses of such mortgagee(s)  and/or trust deed holder(s).  Tenant further
agrees that if Landlord  shall have failed to cure such default  within the time
provided for in this Lease,  then the  mortgagee(s)  and/or trust deed holder(s)
shall have an  additional  thirty (30) days within which to cure such default or
if such default cannot be cured within that time,  then such  additional time as
may be necessary if within such thirty (30) days any mortgagee and/or trust deed
holder(s) has commenced  and is  diligently  pursuing the remedies  necessary to
cure such default  (including  but not limited to  commencement  of  foreclosure
proceedings,  if necessary to effect such cure), in which event this Lease shall
not be terminated while such remedies are being so diligently pursued.

       32.  COSTS AND  ATTORNEYS'  FEES.  If Tenant or Landlord  shall bring any
action for any relief against the other,  declaratory or otherwise,  arising out
of this  Lease,  including  any  suit by  Landlord  for the  recovery  of  Rent,
Additional Rent or other payments hereunder,  or possession of the Premises, the
losing party shall pay the prevailing party a reasonable sum for attorneys' fees
in such suit, at trial and on appeal,  and such  attorneys' fees shall be deemed
to have accrued on the commencement of such action.



                                       30




       33. BROKERS.  Tenant  represents and warrants to Landlord that neither it
nor its  officers  or agents nor anyone  acting on its behalf has dealt with any
real estate  broker other than Fallon,  Hines & O'Connor,  Inc. and Peter Elliot
LLC in the  negotiating or making of this Lease,  and Tenant agrees to indemnify
and hold Landlord,  its agents (including National  Development Asset Management
of  New  England   Limited   Partnership),   employees,   partners,   directors,
shareholders and independent  contractors harmless from all liabilities,  costs,
demands,  judgments,  settlements,  claims,  and  losses,  including  reasonable
attorneys'  fees and costs,  incurred by Landlord in  conjunction  with any such
claim or claims  of any other  broker or  brokers  claiming  to have  interested
Tenant in the  Building or  Premises or claiming to have caused  Tenant to enter
into this Lease.

       34.  LANDLORD'S  LIABILITY.  Anything  in  this  Lease  to  the  contrary
notwithstanding,  covenants, undertakings and agreements herein made on the part
of  Landlord  are made and  intended  not for the  purpose of  binding  Landlord
personally  or the assets of Landlord but are made and intended to bind only the
Landlord's interest in the Premises and Building,  as the same may, from time to
time, be encumbered and no personal  liability  shall at any time be asserted or
enforceable against Landlord or its stockholders,  officers or partners or their
respective heirs,  legal  representatives,  successors and assigns on account of
the Lease or on account of any covenant, undertaking or agreement of Landlord in
this Lease contained.

       35. ESTOPPEL CERTIFICATES. Tenant shall, from time to time, within twenty
(20) days of Landlord's  written  request,  execute,  acknowledge and deliver to
Landlord or its designee a written  statement  stating:  the date this Lease was
executed and the date it expires;  the date Tenant entered into occupancy of the
Premises;  the amount of Rent,  Additional  Rent and other charges due hereunder
and the date to which such  amounts  have been paid;  that this Lease is in full
force and effect and has not been assigned, modified, supplemented or amended in
any way (or  specifying  the date and terms of any  agreement so affecting  this
Lease);  that this Lease represents the entire agreement  between the parties as
to this  leasing;  that all  conditions  under  this  Lease to be  performed  by
Landlord have been satisfied (or specifying  any such  conditions  that have not
been  satisfied);  that all  required  contributions  by  Landlord  to Tenant on
account of Tenant's  improvements  have been  received (or  specifying  any such
contributions  that  have not been  received);  that on this  date  there are no
existing  defenses or offsets which Tenant has against the  enforcement  of this
Lease by  Landlord;  that no Rent  has  been  paid  more  than one (1)  month in
advance;  that no security  has been  deposited  with  Landlord  (or, if so, the
amount thereof); or any other matters evidencing the status of the Lease, as may
be required either by a lender making a loan to Landlord to be secured by a deed
of trust or mortgage against the Building, or a purchaser of the Building. It is
intended that any such  statement  delivered  pursuant to this  paragraph may be
relied upon by a prospective  purchaser of Landlord's interest or a mortgagee of
Landlord's  interest or assignee of any mortgage



                                       31





upon  Landlord's  interest in the  Building.  If Tenant fails to respond  within
twenty (20) days of receipt by Tenant of a written request by Landlord as herein
provided,  Tenant  shall be  deemed  to have  given  such  certificate  as above
provided without  modification and shall be deemed to have admitted the accuracy
of any information supplied by Landlord to a prospective purchaser or mortgagee.

       36.  FINANCIAL  STATEMENTS.  Within  twenty  (20) days  after  Landlord's
request,  which request may be made from time to time throughout the Lease Term,
Tenant  shall  deliver to Landlord the then most  current  annual and  quarterly
financial statements of PLC Systems, Inc., the Guarantor of Tenant's obligations
under this Lease, that PLC Systems, Inc. is required to file with the Securities
and Exchange Commission.

       37. TRANSFER OF LANDLORD'S  INTEREST.  In the event of any transfer(s) of
Landlord's  interest in the Premises or the Building,  other than a transfer for
security  purposes only, the transferor shall be  automatically  relieved of any
and all obligations  and  liabilities on the part of Landlord  accruing from and
after the date of such transfer, and Tenant agrees to attorn to the transferee.

       38. RIGHT TO PERFORM. If Tenant shall fail to pay any sum of money, other
than Rent and Additional Rent, required to be paid by it hereunder or shall fail
to perform any other act on its part to be performed hereunder, and such failure
shall  continue  for ten (10)  business  days,  Landlord  may,  but shall not be
obligated so to do, and without waiving or releasing Tenant from any obligations
of Tenant,  make any such payment or perform any such other act on Tenant's part
to be made or  performed  as  provided in this  Lease.  Landlord  shall have (in
addition to any other right or remedy of Landlord)  the same rights and remedies
in the event of the  nonpayment of sums due under this Section as in the case of
default by Tenant in the  payment  of Rent.  All sums paid by  Landlord  and all
penalties,  interest and costs in connection therewith, shall be due and payable
by Tenant on the next day after such payment by Landlord, together with interest
thereon at the maximum  rate of interest  permitted by law from such date to the
date of  payment  thereof,  by Tenant to  Landlord,  plus  collection  costs and
attorneys' fees.

       39.  INTENTIONALLY OMITTED

       40.  SALES AND  AUCTIONS.  Tenant  may not  display  or sell  merchandise
outside the  exterior  walls and  doorways of the  Premises and may not use such
areas for  storage,  except  that,  subject to Tenant  obtaining  any  municipal
approvals  that may be  required  for the same,  Tenant  shall be  permitted  to
utilize  storage  trailers at the rear of the Premises at the loading docks that
exclusively  serve the  Premises.  Tenant  further  agrees  not to  install  any
exterior lighting, amplifiers or similar devices or use in or about the Premises
an advertising  medium which may be heard or seen outside the 



                                       32




Premises, such as flashing lights,  searchlights,  loudspeakers,  phonographs or
radio broadcasts. Tenant shall not conduct or permit to be conducted any sale by
auction  in,  upon or from the  Premises  whether  said  auction  be  voluntary,
involuntary, pursuant to any assignment for the payment of creditors or pursuant
to any bankruptcy or other insolvency proceeding.

       41. NO ACCESS TO ROOF.  Tenant  shall have no right of access to the roof
of the Premises or the  Building  and shall not  install,  repair or replace any
aerial, fan, air conditioner or other device on the roof of the Building without
the prior written  consent of Landlord,  which consent shall not be unreasonably
withheld or delayed.  Any aerial,  fan, air conditioner or device installed with
such written  consent shall be maintained by Tenant in good  condition and shall
be subject to removal by Landlord,  at Tenant's expense,  without notice, at any
time. Tenant shall also be responsible for reimbursing  Landlord for any repairs
and  restoration  to the roof or Building  resulting  from the  installation  or
removal of such items on the roof.

       42.  SECURITY.  Tenant  hereby agrees to the exercise by Landlord and its
agents and employees,  within their  reasonable  discretion and to the extent in
accordance  with law,  of such  security  measures  as, but not  limited to, the
search of all persons  entering or leaving the Building,  the  evacuation of the
Building for cause,  suspected  cause or for drill  purposes,  the denial of any
access  to the  Building  and  other  similarly  related  actions  that it deems
necessary  to  prevent  any  threat of  property  damage or bodily  injury.  The
exercise of such  security  measures by Landlord,  its  beneficiaries  and their
agents and employees, and the resulting interruption of service and cessation of
Tenant's  business,  if any,  shall not be deemed an eviction or  disturbance of
Tenant's use and  possession  of the Premises,  or any part  thereof,  or render
Landlord, its beneficiaries and their agents and employees, liable to Tenant for
any resulting  damages or relieve  Tenant from Tenant's  obligations  under this
Lease.


       43. AUTHORITY OF TENANT. If Tenant is a corporation or partnership,  each
individual  executing  this Lease on behalf of said  corporation  or partnership
represents  and warrants that he is duly  authorized to execute and deliver this
Lease on behalf  of said  corporation  or  partnership,  and that this  Lease is
binding upon said corporation or partnership.

       44.  NO ACCORD OR  SATISFACTION.  No  payment  by  Tenant or  receipt  by
Landlord of a lesser  amount than the monthly rent and other sums due  hereunder
shall be deemed to be other than on account of the  earliest  rent or other sums
due, nor shall any  endorsement  or statement on any check or  accompanying  any
check or payment be deemed an accord and  satisfaction;  and Landlord may accept
such check or payment  without  prejudice  to  Landlord's  right to recover  the
balance of such rent or other sum or pursue any other  remedy  provided  in this
Lease.


                                       33





       45.  MODIFICATIONS FOR LENDER. If in connection with obtaining  financing
for the  Building  or any  portion  thereof,  Landlord's  lender  shall  request
reasonable modifications to this Lease as a condition to such financing,  Tenant
shall  not  unreasonably   withhold,   delay,  or  defer  its  consent  to  such
modification  provided such  modifications  do not materially  adversely  affect
Tenant's rights hereunder.

       46. PARKING. Tenant shall have the right to use Tenant's Percentage Share
of the parking  spaces in common with other  tenants of the  Building  upon such
terms and conditions,  including, the imposition of a reasonable parking charge,
if the same is  established  by  Landlord  at any time  during  the term of this
Lease.  Tenant agrees not to  overburden  the parking  facilities  and agrees to
cooperate  with  Landlord  and other  tenants in use of the parking  facilities.
Landlord reserves the right in its
absolute  discretion to determine  whether the parking  facilities  are becoming
overburdened  and to allocate and assign  parking  spaces among Tenant and other
tenants,  and to reconfigure the parking area and modify the existing ingress to
and egress from the parking area as Landlord shall deem  appropriate;  provided,
however, that Landlord shall not reduce (other than due to temporary conditions)
the number of spaces  currently on the Lot below the number  required  under the
Zoning By-law of the Town of Franklin.

       47.  EXTERIOR  SIGNS.  Tenant shall place no signs in the common areas or
upon the outside  walls or roof of the  Building or  elsewhere  on the  Premises
except with the prior  written  consent of the  Landlord.  Subject to Landlord's
approval of the actual style and dimensions of the same and to the compliance of
such sign with the Zoning By-law of the Town of Franklin,  Tenant shall have the
right to install, at Tenant's sole cost and expense, one "in ground" sign in the
front of the Building at a location to be  designated  by Landlord.  Any and all
signs  placed on or about the  Premises or the Lot by Tenant  shall  comply with
Landlord's rules and regulations governing such signs, and all governmental laws
and  Tenant  shall  be   responsible  to  Landlord  for  any  damage  caused  by
installation,  use, or maintenance of such signs. Tenant shall remove any of its
signs upon the  termination  of this  Lease and repair any damage  caused by the
sign  installation or removal and, if Tenant fails to do so, Landlord shall have
the  right to  remove  the signs and make  such  repairs  at  Tenant's  expense.
Landlord  shall also list  Tenant's  name on the marquee sign at the entrance to
the Lot in a style similar to other tenants of the Building.

       48. FORGE PARK COVENANTS AND RESTRICTIONS;  RULES AND REGULATIONS. Tenant
agrees to comply with the Forge Park  Covenants  and  Restrictions  set forth in
Exhibit C.

         Tenant agrees to comply with such  reasonable  rules and regulations as
Landlord may adopt from time to time for the orderly and proper operation of the
Building  and parking and other common  areas.  Such rules may include but shall
not be limited to


                                       34




the following: (1) the restricting of employee parking to a limited,  designated
area or areas;  and (2)  regulation  of the  removal,  storage  and  disposal of
Tenant's  refuse and other  rubbish at the sole cost and expense of Tenant.  The
rules and  regulations  shall be binding upon Tenant upon  delivery of a copy of
them  to  Tenant.   Landlord   shall  not  be  responsible  to  Tenant  for  the
nonperformance  of any of said  rules and  regulations  by any other  tenants or
occupants of the Building.

       49.        GENERAL PROVISIONS.

                  49.1  Acceptance.  This Lease shall only become  effective and
         binding upon full execution hereof by Landlord and delivery of a signed
         copy to Tenant.

                  49.2 Joint Obligation.  If there be more than one Tenant,  the
         obligations hereunder imposed shall be joint and several.

                  49.3 Marginal Headings,  Etc. The marginal headings,  Table of
         Contents,  lease summary sheet and titles to the articles of this Lease
         are  not a part  of the  Lease  and  shall  have  no  effect  upon  the
         construction or interpretation of any part hereof.

                  49.4  Choice  of Law.  This  Lease  shall be  governed  by and
         construed  in  accordance  with  the laws of the  state  in  which  the
         Premises are located.

                  49.5  Successors  and Assigns.  The covenants  and  conditions
         herein contained,  subject to the provisions as to assignment, inure to
         and bind the heirs, successors,  executors,  administrators and assigns
         of the parties hereto.

                  49.6  Recordation.  Neither  Landlord  nor Tenant shall record
         this Lease, but a short-form  memorandum  hereof may be recorded at the
         request of Landlord.

                  49.7 Quiet Possession.  Upon Tenant's paying the rent reserved
         hereunder and observing and performing all of the covenants, conditions
         and provisions on Tenant's part to be observed and performed hereunder,
         Tenant shall have quiet  possession of the Premises for the entire term
         hereof, subject to all the provisions of this Lease.

                  49.8 Inability to Perform.  This Lease and the  obligations of
         the Tenant  hereunder  shall not be affected  or  impaired  because the
         Landlord is unable to fulfill any of its  obligations  hereunder  or is
         delayed in doing so, if such  inability or delay is caused by reason of
         strike,  labor  troubles,  acts of God, or any other  cause  beyond the
         reasonable control of the Landlord.



                                       35



                  49.9  Partial  Invalidity.  Any  provision of this Lease which
         shall prove to be  invalid,  void,  or illegal  shall in no way affect,
         impair  or  invalidate  any  other  provision  hereof  and  such  other
         provision(s) shall remain in full force and effect.

                  49.10  Cumulative  Remedies.  No remedy or election  hereunder
         shall be deemed exclusive but shall,  whenever possible,  be cumulative
         with all other remedies at law or in equity.

                  49.11  Entire  Agreement.   This  Lease  contains  the  entire
         agreement   of  the  parties   hereto  and   supersedes   any  previous
         representations,   inducements,   promises  or   agreements,   oral  or
         otherwise,  between the parties.  Any  amendment to this Lease shall be
         effective  only if  evidenced by a written  instrument  executed by the
         parties.

                  49.12 Exhibits.  All exhibits and addenda  attached hereto are
         incorporated herein by this reference.

       50.  TENANT'S RIGHT OF SECOND OFFER TO LEASE SPACE IN BUILDING.  Provided
that Tenant is not in default beyond the  expiration of applicable  cure periods
under this Lease at the time that "Landlord's  Notice" (defined herein) is given
and  provided  that the  original  Tenant  hereunder is then in occupancy of the
entire Premises,  in the event that after July 1, 1996 Landlord desires to lease
space in the building to third parties,  Landlord shall, prior to marketing such
space and after the expiration of the rights of Extraction Systems,  Inc. and/or
CARR  Separations,  Inc., (or their assignees) to lease such space,  give Tenant
notice ("Landlord's Notice") of the availability of such space and the terms and
conditions on which Landlord is willing to lease such space; it being understood
an agreed that Tenant's  rights to lease such space shall be  subordinate to the
rights of  Extraction  Systems,  Inc. and CARR  Separations,  Inc. to lease such
space.  If (a) Tenant shall not give Landlord notice of Tenant's desire to lease
such space  within five (5)  business  days after  Landlord's  Notice or (b) the
parties  shall not execute and deliver an  amendment  to this Lease  adding such
space to the  Premises in a mutually  acceptable  form  within  thirty (30) days
after Tenant gives such  notice,  Landlord  shall be free to lease such space to
any other party at any time and from time-to-time thereafter.

         IN WITNESS  WHEREOF,  the parties  herein have hereunto set their hands
and seals the day and year first above written.

                                                   LANDLORD:

Attest:                                            AETNA LIFE INSURANCE COMPANY



                                       36




                                                   By
- ------------------------                             --------------------------
                                                     Its
                                                        -----------------------


                                                   TENANT:

Attest:                                            PLC MEDICAL SYSTEMS, INC.


                                                   By
- --------------------------                           --------------------------
                                                     Its
                                                        -----------------------

223905




                                       37





                                    EXHIBIT A

                              PLAN OF THE PREMISES

                                (to be attached)











                                    EXHIBIT B

                          LEGAL DESCRIPTION OF THE LOT

                                (to be attached)









                                    EXHIBIT C

                  Attach Forge Park Covenants and Restrictions















                                                     EXHIBIT D

                                   [Attach List of Tenant's Hazardous Materials]








                                                                      EXHIBIT 11






                                PLC SYSTEMS INC.
                   CALCULATION OF NET INCOME (LOSS) PER SHARE



                                 Three Months Ended        Six Months Ended
                                       June 30,                June 30,
                                --------------------      ------------------
                                1996          1995        1996         1995
                                ----          ----        ----         ----

Weighted average number of
common shares outstanding     16,441,000   15,849,000   16,246,000   15,847,000

Common stock equivalents (1)          -            -       968,000           -
                              ----------   ----------   ----------   ----------

Shares used to compute net
income (loss) per share       16,441,000   15,849,000   17,214,000   15,847,000

Net income (loss)              $(903,000)   $(578,000)    $374,000    $(416,000)


Net income (loss) per share       $(0.05)      $(0.04)       $0.02       $(0.03)



    (1)      The net loss per share is  calculated  using the  weighted  average
             number of shares outstanding during the period and does not include
             common stock equivalents as their inclusion would be antidilutive.





<TABLE> <S> <C>


<ARTICLE>                     5
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                              DEC-31-1995 
<PERIOD-END>                                   JUN-30-1996
<CASH>                                         4,307,000
<SECURITIES>                                   9,441,000
<RECEIVABLES>                                  857,000
<ALLOWANCES>                                   (28,000)
<INVENTORY>                                    2,889,000
<CURRENT-ASSETS>                               18,618,000
<PP&E>                                         4,461,000
<DEPRECIATION>                                 (2,159,000)
<TOTAL-ASSETS>                                 21,266,000
<CURRENT-LIABILITIES>                          2,925,000
<BONDS>                                        0
                          0
                                    0
<COMMON>                                       53,786,000
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