THERMO TERRATECH INC
8-K, 1997-10-24
TESTING LABORATORIES
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                       SECURITIES AND EXCHANGE COMMISSION

                              Washington, DC 20549

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

                                    FORM 8-K

                                 CURRENT REPORT



                       Pursuant to Section 13 or 15(d) of
                       the Securities Exchange Act of 1934


                                 Date of Report
                       (Date of earliest event reported):

                                October 10, 1997
                    ________________________________________

                              THERMO TERRATECH INC.
             (Exact name of Registrant as specified in its charter)


    Delaware                         1-9549                        04-2925807
    (State or other               (Commission)               (I.R.S. Employer
    jurisdiction of               File Number)         Identification Number)
    incorporation or
    organization)

    81 Wyman Street, P.O. Box 9046
    Waltham, Massachusetts                                         02254-9046
    (Address of principal executive offices)                       (Zip Code)


                                 (617) 622-1000
               (Registrant's telephone number including area code)
PAGE
<PAGE>
                                                                     FORM 8-K

    Item 2.  Acquisition or Disposition of Assets

        On October 10, 1997, Thermo TerraTech Inc. (the "Company") sold
    substantially all of the assets of its Holcroft Division, excluding
    certain accounts receivable, to Holcroft L.L.C., an affiliate of Madison
    Capital Partners. 
        The Holcroft Division, based in Livonia, Michigan, designs and builds
    large, custom engineered metallurgical-treatment systems used primarily
    in the automotive industry.
        The sale price for the transferred assets consisted of (i)  
    $11,417,000, in cash, including $520,000 withheld by Holcroft L.L.C.
    pending a post-closing adjustment, (ii) two promissory notes for
    principal amounts of $2,218,000 and $663,000, respectively, issued by
    Holcroft L.L.C. to the Company, and (iii) the assumption by Holcroft
    L.L.C. of certain liabilities of the Holcroft Division. The sale price is
    subject to a post-closing adjustment, which would reduce the sale price
    by an amount not to exceed $520,000, based on a final determination of
    the net book value of the transferred assets as of September 27, 1997.
    The $2,218,000 promissory note bears interest at a rate of 9.25%,
    requires monthly interest payments and annual principal payments, and has
    a five-year term. The note is secured by all of the assets of Holcroft
    L.L.C., but is subject to a Subordination Agreement dated as of October
    10, 1997, between the Company and Comerica Bank. The $663,000 promissory
    note bears no interest for the first 30 days and interest at a rate of
    10% thereafter. The note matures on August 10, 1998, requires monthly
    interest payments as well as mandatory prepayments of principal based on
    Holcroft L.L.C.'s collection of certain receivables of the Holcroft
    Division, and is secured by certain receivables of the Holcroft Division.
         The disposition was made pursuant to an Asset Purchase Agreement
    dated as of October 10, 1997, between the Company and Holcroft L.L.C (the
    "Asset Purchase Agreement"). The sale price for the assets of the
    Holcroft Division was based on the Company's determination of the fair
    market value of such assets, and the terms of the Asset Purchase
    Agreement were determined by arms' length negotiation between the
    parties.
        In addition, the Company and Holcroft L.L.C. entered into a sublease
    with a term commencing October 10, 1997, and ending December 31, 2004,
    with an option for Holcroft L.L.C. to extend the term for an additional
    five years, pursuant to which the Company subleases to Holcroft L.L.C.
    office and manufacturing space located at 12068 Market Street, Livonia,
    Michigan.
        In a separate transaction, on October 6, 1997, Thermo Remediation
    Inc., a majority-owned subsidiary of the Company, sold its 50% limited
    liability company interest in RETEC/TETRA, L.C., a Texas limited
    liability company (the "Joint Venture"), to TETRA Thermal, Inc. This
    transaction was reported in a Current Report on Form 8-K, filed with the
    Securities and Exchange Commission on October 21, 1997. The pro forma
    adjustments for the sale of the Joint Venture are reflected in the pro
    forma condensed financial information included in Item 7(b) of this
    report.

                                        2PAGE
<PAGE>
                                                                     FORM 8-K


    Item 7.   Financial Statements, Pro Forma Condensed Financial
              Information and Exhibits

             (a) Financial Statements

                 Not applicable.

             (b) Pro Forma Condensed Financial Information

        The following unaudited pro forma condensed statements of operations
    set forth the results of operations for the fiscal year ended March 29,
    1997, and the three months ended June 28, 1997, as if the disposition by
    the Company of both the Holcroft Division and the interest in the Joint
    Venture had occurred at the beginning of fiscal 1997. The unaudited pro
    forma condensed balance sheet sets forth the financial position as of
    June 28, 1997, as if the dispositions had occurred as of that date.
        The pro forma results of operations are not necessarily indicative
    of future operations or the actual results that would have occurred had
    the sale of the Holcroft Division and the interest in the Joint Venture
    been consummated at the beginning of fiscal 1997. These statements should
    be read in conjunction with the accompanying notes herein and the
    historical consolidated financial statements and related notes of the
    Company included in its Annual Report on Form 10-K for the fiscal year
    ended March 29, 1997, and Quarterly Report on Form 10-Q for the three
    months ended June 28, 1997.

                                        3PAGE
<PAGE>
                                                                     FORM 8-K
                              THERMO TERRATECH INC.

             PRO FORMA CONDENSED STATEMENT OF OPERATIONS (Unaudited)
                        Fiscal Year Ended March 29, 1997

                                        Pro Forma Adjustments
                                        ---------------------
                              Thermo                    Joint
                           TerraTech   Holcroft       Venture      Pro Forma
                           ---------   --------       -------      ---------
                                 (In thousands except per share amounts)

    Revenues                $278,503   $(27,119)     $      -       $251,384
                            --------   --------      --------       --------
    Costs and Operating
      Expenses:
        Cost of revenues     230,080    (22,677)            -        207,403
        Selling, general,
          and administrative
          expenses            35,466     (2,677)            -         32,789
        Product and new 
          business develop-
          ment expenses        1,046          -             -          1,046
        Nonrecurring costs     7,800          -             -          7,800
                            --------   --------      --------       --------
                             274,392    (25,354)            -        249,038
                            --------   --------      --------       --------
    Operating Income           4,111     (1,765)            -          2,346

    Interest Income            7,253        (33)            -          7,220
    Interest Expense         (12,914)         -             -        (12,914)
      (includes $2,492 to
      parent company)
    Gain on Issuance of
      Stock by Subsidiary      1,475          -             -          1,475
    Loss on Sale of Assets    (1,482)         -             -         (1,482)
    Equity in Earnings of 
      Unconsolidated 
      Subsidiary                 865          -          (865)             -
    Other Income, Net            401          -             -            401
                            --------   --------      --------       --------
    Income (Loss) Before 
      Income Tax Provision
      and Minority Interest     (291)    (1,798)         (865)        (2,954)
    Income Tax Provision      (1,705)       719           346           (640)
    Minority Interest Income   1,834          -           163          1,997
                            --------   --------      --------       --------
    Net Loss                $   (162)  $ (1,079)     $   (356)      $ (1,597)
                            ========   ========      ========       ========

    Loss per Share          $   (.01)                               $   (.09)
                            ========                                ========

    Weighted Average Shares   18,090                                  18,090
                            ========                                ========
                                        4PAGE
<PAGE>
                                                                     FORM 8-K
                              THERMO TERRATECH INC.

             PRO FORMA CONDENSED STATEMENT OF OPERATIONS (Unaudited)
                        Three Months Ended June 28, 1997

                                      Pro Forma Adjustments
                                      ---------------------

                             Thermo                   Joint
                          TerraTech   Holcroft      Venture      Pro Forma
                          ---------   --------      -------      ---------
                                (In thousands except per share amounts)

   Revenues                 $72,519    $(7,409)     $     -        $65,110
                            -------    -------      -------        -------
   Costs and Operating
     Expenses:
       Cost of revenues      57,951     (6,131)           -         51,820
       Selling, general,
         and administrative
         expenses             9,938       (843)           -          9,095
       Product and new 
         business develop-
         ment expenses          222          -            -            222
                            -------    -------      -------        -------
                             68,111     (6,974)           -         61,137
                            -------    -------      -------        -------
   Operating Income           4,408       (435)           -          3,973

   Interest Income            1,403          -            -          1,403
   Interest Expense
     (includes $1,164 to
     parent company          (3,133)         -            -         (3,133)
   Equity in Earnings of
     Unconsolidated
     Subsidiary                 118          -         (118)             -
   Other Income, Net            204          -            -            204
                            -------    -------      -------        -------
   Income Before Income Tax
     Provision and Minority
     Interest                 3,000       (435)        (118)         2,447
   Income Tax Provision      (1,399)       174           47         (1,178)
   Minority Interest
     Expense                   (269)         -           21           (248)
                            -------    -------      -------        -------
   Net Income               $ 1,332    $  (261)     $   (50)       $ 1,021
                            =======    =======      =======        =======

   Earnings per Share       $   .08                                $   .06
                            =======                                =======

   Weighted Average Shares   17,646                                 17,646
                            =======                                =======

                                        5PAGE
<PAGE>
                                                                       FORM 8-K
                              THERMO TERRATECH INC.

                  PRO FORMA CONDENSED BALANCE SHEET (Unaudited)
                               As of June 28, 1997

                                          Pro Forma Adjustments
                                     -------------------------------
                            Thermo                Holcroft     Joint
                         TerraTech   Holcroft  Adjustments   Venture Pro Forma
                         ---------   --------  -----------   ------- ---------
                                            (In thousands)                   

  ASSETS
  Current Assets:
    Cash and short-term
      investments         $ 45,973    $      -    $10,897  $  8,825   $ 65,695
    Accounts receivable,
      net                   53,238      (4,225)     2,049         -     51,062
    Note Receivable              -           -        663         -        663
    Unbilled contract
      costs and fees        40,447     (16,191)         -         -     24,256
    Inventories              2,447      (1,606)         -         -        841
    Prepaid income taxes     7,484           -          -         -      7,484
    Prepaid expenses         5,457         (17)         -         -      5,440
                          --------    --------    -------    ------   --------
                           155,046     (22,039)    13,609     8,825    155,441
                          --------    --------    -------    ------   --------
  Property, Plant, and
    Equipment, at Cost,
    Net                     86,519        (738)         -         -     85,781
                          --------    --------    -------    ------   --------
  Other Assets              20,344           -      2,218    (5,768)    16,794
                          --------    --------    -------    ------   --------
  Cost in Excess of Net
    Assets of Acquired
    Companies               95,550           -          -         -     95,550
                          --------    --------    -------    ------   --------
                          $357,459    $(22,777)   $15,827    $3,057   $353,566
                          ========    ========    =======    ======   ========

                                        6PAGE
<PAGE>
                                                                       FORM 8-K
                              THERMO TERRATECH INC.

            PRO FORMA CONDENSED BALANCE SHEET (Unaudited) (continued)
                               As of June 28, 1997

                                         Pro Forma Adjustments
                                    ------------------------------
                           Thermo                Holcroft    Joint
                        TerraTech   Holcroft  Adjustments  Venture  Pro Forma
                        ---------   --------  -----------  -------  ---------
                                          (In thousands)
 LIABILITIES AND 
 SHAREHOLDERS' INVESTMENT
 Current Liabilities:
   Notes payable and
     current maturities 
     of long-term
     obligations         $ 44,351   $      -     $     -   $    -   $ 44,351
   Accounts payable        13,735     (1,891)          -        -     11,844
   Accrued payroll and
     employee benefits     11,363       (800)          -        -     10,563
   Billings in excess
     of cost                5,306     (4,207)          -        -      1,099
   Other accrued 
     expenses               9,651     (1,236)        936    1,223     10,574
   Due to parent 
     company                2,843       (232)          -        -      2,611
                         --------   --------     -------   ------   --------
                           87,249     (8,366)        936    1,223     81,042
                         --------   --------     -------   ------   --------
 Deferred Income Taxes      5,297          -           -        -      5,297
                         --------   --------     -------   ------   --------
 Other Deferred Items       1,009          -           -        -      1,009
                         --------   --------     -------   ------   --------
 Long-term Obligations    152,994          -           -        -    152,994
                         --------   --------     -------   ------   --------
 Minority Interest         29,635          -           -      551     30,186
                         --------   --------     -------   ------   --------
 Shareholders' Investment:
   Common stock             1,830          -           -        -      1,830
   Capital in excess of
     par value             62,426          -           -        -     62,426
   Retained earnings       25,378          -         480    1,283     27,141
   Treasury stock, at 
     cost                  (6,937)         -           -        -     (6,937)
   Cumulative translation
     adjustment            (1,431)         -           -        -     (1,431)
   Net unrealized gain
     on available-for-
     sale investments           9          -           -        -          9
   Parent company 
     investment                 -    (14,411)     14,411        -          -
                         --------   --------     -------   ------   --------
                           81,275    (14,411)     14,891    1,283     83,038
                         --------   --------     -------   ------   --------
                         $357,459   $(22,777)    $15,827   $3,057   $353,566
                         ========   ========     =======   ======   ========
                                        7PAGE
<PAGE>
                                                                       FORM 8-K
                              THERMO TERRATECH INC.

                NOTES TO PRO FORMA CONDENSED FINANCIAL STATEMENTS
                                   (Unaudited)

 Note 1 - Basis of Presentation

     As described in Item 2 of this Form 8-K, the selling prices were based on
 an estimate of the fair market value of the net assets sold and are subject
 to adjustment. To date, no information has been gathered that would cause the
 Company to believe that the final selling prices will be materially different
 than the preliminary estimates.

 Note 2 - Pro Forma Adjustments to Pro Forma Condensed Statements of
          Operations (In thousands)
                                                                  Three Months
                                                 Year Ended          Ended
                                               March 29, 1997    June 28, 1997
                                               --------------    -------------
                                                       Debit (Credit)

 Equity in Earnings of Unconsolidated Subsidiary
 Represents the reversal of the Company's
   proportionate share of income from its
   investment in the Joint Venture                 $   865           $   118
                                                   -------           -------
 Income Tax Provision
 Income tax benefit associated with the
   adjustments above, calculated at the Company's
   statutory income tax rate of 40%                   (346)              (47)
                                                   -------           -------
 Minority Interest Income (Expense)
 Represents Thermo Remediation's minority
   shareholders' interest in the pro forma
   adjustments above related to the Joint Venture     (163)              (21)
                                                   -------           -------

                                        8PAGE
<PAGE>
                                                                       FORM 8-K
                              THERMO TERRATECH INC.

          NOTES TO PRO FORMA CONDENSED FINANCIAL STATEMENTS (continued)
                                   (Unaudited)

 Note 3 - Pro Forma Adjustments to Pro Forma Condensed Balance Sheet
          (In thousands)
                                                                June 28, 1997
                                                                -------------
                                                                Debit (Credit)
 Cash and Short-term Investments
 Cash proceeds received from the sale of the 
   Holcroft Division                                                 $10,897
                                                                     -------
 Cash proceeds received from the sale of the 
   interest in the Joint Venture                                       8,825
                                                                     -------
 Accounts Receivable
 Represents the Holcroft Division's accounts
  receivable retained by the Company                                   2,049
                                                                     -------
 Note Receivable
 Note receivable issued to the Company by the
   acquirer, Holcroft L.L.C.                                             663
                                                                     -------
 Other Assets
 Long-term note receivable issued to the 
   Company by the acquirer, Holcroft L.L.C.,
   bearing interest at 9.25%                                           2,218
                                                                     -------
 Represents the Company's sale of its interest
   in the Joint Venture                                               (5,768)
                                                                     -------
 Other Accrued Expenses
 Represents the tax effect related to the excess
   of the expected proceeds received by the 
   Company from the sale of the Holcroft Division, 
   calculated at the Company's statutory income 
   tax rate of 40%                                                      (320)

 Accruals established by the Company related
   to liabilities retained and costs associated
   with the sale of the Holcroft Division                               (616)
                                                                     -------
                                                                        (936)
                                                                     -------
 Represents the tax effect related to the
   excess of the proceeds received by the
   Company from the sale of its interest in the
   Joint Venture, calculated at the Company's 
   statutory income tax rate of 40%                                   (1,223)
                                                                     -------
 Minority Interest
 Represents minority interest in the excess of the
   proceeds received by the Company from the sale
   of its interest in the Joint Venture over the
   carrying value of the interest                                       (551)
                                                                     -------
                                        9PAGE
<PAGE>
                                                                       FORM 8-K
                              THERMO TERRATECH INC.

          NOTES TO PRO FORMA CONDENSED FINANCIAL STATEMENTS (continued)
                                   (Unaudited)

 Note 3 - Pro Forma Adjustments to Pro Forma Condensed Balance Sheet
          (In thousands) (continued)

                                                                June 28, 1997
                                                                -------------
                                                                Debit (Credit)

 Shareholders' Investment
 Retained Earnings
 Represents the excess of the expected proceeds received
   by the Company from the sale of the Holcroft Division
   over the net book value, net of tax                               $   (480)
                                                                     --------
 Represents the excess of the proceeds received by the
   Company from the sale of its interest in the Joint
   Venture over the carrying value of the interest, 
   net of tax                                                          (1,283)
                                                                     --------
 Parent Company Investment
 Elimination of the Holcroft Division's equity accounts               (14,411)
                                                                     --------

                                       10PAGE
<PAGE>
                                                                       FORM 8-K



    Item 7.  Financial Statements, Pro Forma Condensed Financial
             Information and Exhibits

              (c) Exhibits

                  2.1  Asset Purchase Agreement dated as of October 10, 1997,
                       between the Company and Holcroft L.L.C. Pursuant to
                       Item 601(b)(2) of Regulation S-K, schedules to this
                       Agreement have been omitted. The Registrant hereby
                       undertakes to furnish supplementally a copy of such
                       schedules to the Securities and Exchange Commission
                       upon request.

                  2.2  $2,218,000.00 Principal Promissory Note issued by
                       Holcroft L.L.C. to the Company.

                  2.3  $663,117.82 Principal Promissory Note issued by
                       Holcroft L.L.C. to the Company. Pursuant to Item 
                       601(b)(2) of Regulation S-K, schedules to this 
                       Agreement have been omitted. The Registrant hereby 
                       undertakes to furnish supplementally a copy of such 
                       schedules to the Securities and Exchange Commission 
                       upon request.

                  2.4  Subordination Agreement dated as of October 10, 1997,
                       between the Company and Comerica Bank.

                  2.5  Second Amendment to Sublease dated as of October 10, 
                       1997, between the Company and TMO, Inc.

                  2.6  Sublease dated as of October 10, 1997, between the
                       Company and Holcroft L.L.C. Pursuant to Item
                       601(b)(2) of Regulation S-K, schedules to this 
                       Agreement have been omitted. The Registrant hereby 
                       undertakes to furnish supplementally a copy of such 
                       schedules to the Securities and Exchange Commission 
                       upon request.

                                       11PAGE
<PAGE>
                                                                       FORM 8-K


                                   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, on this 24th day of October
    1997.



                                           THERMO TERRATECH INC.


                                           Paul F. Kelleher
                                           -------------------------------
                                           Paul F. Kelleher
                                           Chief Accounting Officer




                                                              EXHIBIT 2.1




















                        _________________________________

                            ASSET PURCHASE AGREEMENT

                                 by and between

                                 HOLCROFT L.L.C.

                                       and

                              THERMO TERRATECH INC.


                          Dated as of October 10, 1997

                        ---------------------------------
PAGE
<PAGE>
                                TABLE OF CONTENTS


        ARTICLE I  PURCHASE AND SALE OF ASSETS
             1.1   Assets                                        
             1.2   Excluded Assets                                
             1.3   Assets of Affiliates                           
             1.4   Limited Assumption of Liabilities              

        ARTICLE II CONSIDERATION AND MANNER OF PAYMENT            
             2.1   Purchase Price                                 
             2.2   Post-Closing Adjustment                        
             2.3.  Noncompetition Payments                       
             2.4.  Purchase Price Allocation                      

        ARTICLE III SELLER'S REPRESENTATIONS AND WARRANTIES      
             3.1   Organization and Good Standing                 
             3.2   Corporate Authorization                        
             3.3   No Violation                                   
             3.4   No Consent Required                            
             3.5   Financial Statements                           
             3.6   Absence of Undisclosed Liabilities            
             3.7   Assets                                        
             3.8   Compliance with Laws; Permits                 
             3.9   Property                                      
             3.10  Leases                                        
             3.11  Contracts                                     
             3.12  Intellectual Property                         
             3.13  Employee Benefit Plans                        
             3.14  Salaries                                      
             3.15  Personnel Agreements, Plans and Arrangements 
             3.16  Workers Compensation and Medical Claims
             3.17  Suppliers                                     
             3.18  Customers                                     
             3.19  Interest of Seller in Customers, etc.         
             3.20  Intercompany Transaction                      
             3.21  Books and Records                             
             3.22  Insurance Policies                            
             3.23  Bank Accounts                                 
             3.24  Taxes  
             3.25  Litigation                                    
             3.26  Product Warranties                            
             3.27  Environmental and Safety Requirements         

                                        iPAGE
<PAGE>
             3.28  Conduct of the Business                       

        ARTICLE IV BUYER'S REPRESENTATIONS AND WARRANTIES        
             4.1   Organization and Good Standing                
             4.2   Authorization                                 
             4.3   No Violation                                  
             4.4   No Consent Required                           

        ARTICLE V  COVENANTS AND AGREEMENTS                      
             5.1.  Further Actions                               
             5.2.  Noncompetition and Nondisclosure              
             5.3.  Holcroft Name                                 
             5.4.  Offer of Employment                           
             5.5.  WARN Act                                      
             5.6.  Letters of Credit                             

        ARTICLE VI CLOSING                                       
              6.1. Closing                                       
              6.2. Deliveries by the Seller                      
              6.3. Deliveries by Buyer                           

        ARTICLE VIICOVENANTS AFTER CLOSING                       
             7.1   Indemnification by Seller                     
             7.2   Indemnification by Buyer                      
             7.3   Indemnification Procedure for Third Party Claims
             7.4   Failure to Give Timely Notice                 

        ARTICLE VIII MISCELLANEOUS                               
             8.1   Notices, Consents, etc.                       
             8.2   Public Announcements                          
             8.3   Severability                                  
             8.4   Amendment and Waiver                          
             8.5   Documents                                     
             8.6   Counterparts                                  
             8.7   Expenses                                      
             8.8   Construction                                  
             8.9   Headings                                      
             8.10  Assignment                                    
             8.11  Definitions                                   
             8.12  Entire Agreement                              
             8.13  Third Parties                                 
             8.14  Interpretative Matters                        

                                       iiPAGE
<PAGE>
             8.15  Knowledge                                     
             8.16  Brokers and Transaction Payments              
             8.17  No Strict Construction                        
             8.18  Counterparts                                  

                                       iiiPAGE
<PAGE>
                           GLOSSARY OF DEFINED TERMS


        "90 Day Receivables"                                      
        "90 Day Receivables Note"                                 
        "Accountants"                                             
        "Agreement"                                               
        "Assets"                                                  
        "Assumed Liabilities"                                     
        "Basket Threshold"                                       
        "Building and Fixtures"                                  
        "Business"                                                
        "Buyer Indemnified Party"                                
        "Buyer"  
        "Cap"   
        "Chrysler Lease"                                         
        "Closing Date"                                           
        "Closing"                                                
        "Code"  
        "Contract Requiring Consent"                             
        "Defense Counsel"                                        
        "Defense Notice"                                         
        "Employee Benefit Plans"                                 
        "Employee Pension Benefit Plan"                          
        "Employee Welfare Benefit Plan"                              
        "Employees"                                              
        "Environmental and Safety Requirements"                  
        "ERISA" 
        "Estimated Net Book Value"                                
        "Excluded Assets"                                         
        "Excluded Receivables"                                    
        "Excluded Liabilities"                                    
        "Final Net Book Value"                                    
        "Final Purchase Price"                                    
        "Final Purchase Price Adjustment Schedule"                
        "Financial Statements"                                    
        "GAAP"                                                       
        "Hazardous Materials"                                    
        "Holcroft Division"                                       
        "Holdback Amount"                                         
        "Incurred But Not Reported"                               
        "Indemnified Party"                                      
        "Indemnifying Party"                                     
        "Landlord"                                               
        "Lease" 
        "Letters of Credit"                                      
        "Liens"  
        "Losses"                                                 
        "Material Contracts"                                     
        "Multi-employer Plan"                                    
        "Net Book Value"                                          
        "Note"
                                       ivPAGE
<PAGE>
        "Permits"                                                 
        "Plan Affiliate"                                         
        "Preliminary Net Book Value"                              
        "Property"                                                
        "Proprietary Rights"                                      
        "Protest Notice"                                          
        "Purchase Price"                                          
        "Restrictive Covenants"                                  
        "Retained Receivables"                                   
        "Seller Indemnified Party"                               
        "Seller"                                                  
        "Severance Agreements"                                   
        "Sublease"                                                
        "Tax Returns"                                            
        "Tax"   
        "Term"  
        "Thermo"                                                 
        "Third Party Claim"                                      
        "TMO Sublease"                                           
        "TMO"   
        "to the knowledge of Seller,"                            
        "to the best knowledge of Seller"                        
        "Transaction Documents"                                   
        "Union Contract"                                         

                                        vPAGE
<PAGE>
                               PURCHASE AGREEMENT


             THIS PURCHASE AGREEMENT (this "Agreement") is made as of
        this 10th day of October, 1997, by and between THERMO TERRATECH
        INC., a Delaware corporation ("Seller") and HOLCROFT L.L.C., a
        Delaware limited liability company ("Buyer").

             WHEREAS, the Holcroft division of Seller (the "Holcroft
        Division") is engaged in the business of manufacturing, marketing
        and servicing industrial heat treating furnaces (the "Business")
        at its principal place of business located at 12068 Market
        Street, Livonia, Michigan;

             WHEREAS, Seller desires to sell to Buyer, and Buyer desires
        to purchase from Seller, the Business and substantially all of
        Seller's assets used in the Business, upon the terms and
        conditions set forth below;

             WHEREAS, Thermo Electron Corporation, a Delaware corporation
        ("Thermo") owns approximately eighty-one percent (81%) of the
        issued and outstanding common stock of Seller.

             NOW THEREFORE, in consideration of the mutual covenants of
        the parties set forth in this Agreement and other good and
        valuable consideration, the receipt and sufficiency of which are
        hereby acknowledged, the parties hereto agree as follows:


                                    ARTICLE I

                           PURCHASE AND SALE OF ASSETS

             1.1  Assets.  On the terms and subject to the conditions set
        forth in this Agreement, at the Closing, Seller is selling,
        transferring and delivering to Buyer, free and clear of all
        liens, mortgages, charges, security interests, pledges or other
        encumbrances or adverse claims or interests of any nature
        ("Liens"), and Buyer is purchasing from Seller, the Business and
        all of Seller's right, title and interest in and to all of the
        assets of the Business (other than Excluded Assets) that are used
        in or arise out of the conduct of the Business as of the Closing
        Date, wherever located and whether or not all or any of said
        assets appear on or are reflected upon Seller's books, records or
        financial statements (collectively, the "Assets"), including, but
        not limited to, the following:

                  (a)  Tangible Personal Property.  All molds and
        fixtures, equipment and machinery, tools, real estate fixtures
        (including, without limitation, cranes), vehicles (whether or not
        registered under motor vehicle registration laws), furniture,
        computer and EDP equipment, computer software, office furniture
        and other similar personal property of Seller and leasehold
                                        1PAGE
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        improvements, in each case, used in the Business;

                  (b)  Inventories and Supplies.  All inventory of Seller
        held in connection with and used in the Business, including
        without limitation, raw materials, work-in-process, finished
        goods, merchandise for resale, spare parts, and office, operating
        and other supplies, whether or not located at the Holcroft
        Division's principal place of business;

                  (c)  Receivables.  All notes and accounts receivable of
        Seller used in the Business and all notes, bonds and other
        evidences of indebtedness of any entity or person held by Seller
        arising from the Business of Seller, including, without
        limitation, all trade, employee, officer and other accounts
        (including unbilled work-in-progress) and monies receivable,
        except for the Excluded Receivables and the Retained Receivables;

                  (d)  Contracts.  All rights Seller may have under any
        and all agreements, contracts, purchase orders, licenses (other
        than the license agreement dated as of 10/1/93 between Seller and
        Thermo Remediation Inc., together with any and all assets related
        thereto) and leases (other than the sublease between the Seller
        and TMO, Inc. and the Chrysler Lease relating to the Property)
        pertaining to the Business including, without limitation, the
        labor agreement dated as of 10/1/95 between the Holcroft Division
        and Carpenters District Council of Detroit, Wayne, Oakland,
        Macomb, St. Claire, Sanilac and Monroe Counties of the United
        Brotherhood of Carpenters and Joiners of America and United
        Brotherhood of Carpenters and Joiners of America, Millmen's Local
        Union No. 1452 (the "Union Contract") and the Material Contracts
        set forth in Schedule 3.11, except that Buyer does not assume any
        late penalties or loss contracts that are known to the Seller at
        the time of the Closing unless such late payments or loss
        contracts are specifically reserved for in the Final Net Book
        Value;

                  (e)  Intellectual Property.  All proprietary
        information of Seller used in connection with the Business
        including, without limitation, the Holcroft name and assumed
        names wherever used, all patents, patent applications, patent
        disclosures and inventions (whether or not patentable and whether
        or not reduced to practice); all trademarks, service marks, trade
        dress, trade names and corporate names; all registered and
        unregistered statutory and common law copyrights; all
        registrations, applications and renewals for any of the
        foregoing; all trade secrets, confidential information, ideas,
        formulae, compositions, know-how, manufacturing and production
        processes and techniques, research and development information,
        drawings, specifications, designs, plans, improvements,
        proposals, technical and computer data, documentation and
        software, financial, business and marketing plans, and customer
        and supplier lists and related information and all other
        proprietary rights relating to the manufacture, sale or service
        of products by, and the conduct of, the Business (collectively,
                                        2PAGE
<PAGE>
        "Proprietary Rights");

                  (f)  Records.  All records, files, and papers of Seller
        pertaining to the Business, including but not limited to, sales
        and purchase correspondence, past and current insurance policies,
        books of account and employment records of those employees of
        Seller hired by Buyer;

                  (g)  Licenses, Permits and Approvals.  All rights of
        Seller in and to transferable permits, licenses, approvals and
        authorizations by or of governmental authorities or third parties
        ("Permits") relating primarily to, or necessary for the continued
        conduct of, the Business or required in connection with ownership
        or operation of the Assets, to the extent assignable;

                  (h)  Claims.  All causes of actions, claims,
        warranties, guarantees, refunds, rights of recovery and set-off
        of every kind and character of Seller related directly to the
        Assets or the Business, including, without limitation, rights and
        claims against suppliers of inventory and other assets
        transferred hereunder;

                  (i)  Customer Property.  The custody of all assets
        owned by a customer of the Business and held by Seller on behalf
        of such customer;

                  (j)  Prepaids.  All deferred charges, advances,
        deposits, credit and other prepaid assets and expenses of Seller
        relating to, or arising out of, the Business;

                  (k)  Insurance.  All insurance, warranty and
        condemnation proceeds received by Seller after the Closing Date
        with respect to damage, nonconformance of or loss to the Assets
        and all transferable insurance policies relating to the Business
        acceptable to Buyer, except to the extent that such proceeds or
        policies relate to Excluded Liabilities;

                  (l)  Cash.  All cash and cash equivalents of Seller
        relating to the Business, including, without limitation, all cash
        receipts, lockboxes and bank accounts; 

                  (m)  Software and License Agreements.  With respect to
        the Holcroft Division, all of Seller's rights and obligations (i)
        with respect to software used in the Business, including, without
        limitation under the Business Cooperation Agreement between the
        Holcroft Division and SCR Creroiserat S.A. dated May 12, 1995,
        (ii) under the License Agreement between the Holcroft Division
        and Camlaw, Ltd. dated June 26, 1992 and (iii) under the Business
        Cooperation Agreement between the Holcroft Division and Sanken
        Sangyo Co., Ltd. dated January 20, 1995; and

                  (n)  Other Assets.  All other properties and assets
        owned or held by the Seller that are used primarily in, or are
        necessary for the continued conduct of, or are otherwise
                                        3PAGE
<PAGE>
        customarily used in, the Business as of the Closing Date, whether
        or not of a type falling within any of the categories of assets
        or properties described above.

             1.2  Excluded Assets.  Notwithstanding the foregoing, the
        following assets of Seller are retained by Seller and are
        expressly excluded from the purchase and sale contemplated by
        this Agreement (collectively, the "Excluded Assets"):

                  (a)  Corporate Records and Tax Returns.  The Seller's
        formal corporate records, including Articles of Incorporation,
        corporate seal, minute books, stock books and other records
        having exclusively to do with the corporate organization of
        Seller and all of Seller's Tax Returns and financial records;

                  (b)  This Agreement.  Seller's rights pursuant to or
        under this Agreement;

                  (c)  Nonassignable Permits.  Any Permits which may not
        be transferred without the consent, novation, waiver or approval
        of a third person or entity and for which such consent, novation,
        waiver or approval has not been obtained;

                  (d)  Employment Agreements.  All employment-related
        agreements of Seller, and any and all rights and obligations
        thereunder (except for the Union Contract);

                  (e)  Certain Receivables.  The Champion Credit Corp.
        and Avtopromimport receivables totalling $845,940.90 at September
        27, 1997 (the "Excluded Receivables") and those receivables set
        forth on Schedule 1.2(e) totalling $2,007,003.04 at September 27,
        1997 (the "Retained Receivables").  The Buyer agrees to promptly
        remit any payments as received by Buyer on the Excluded
        Receivables and the Retained Receivables to Seller.

                  (f)  Insurance Policies.  The insurance policies
        obtained by Seller with respect to the Business or the Assets;

                  (g)  Certain Property.  All other properties and assets
        owned or held by the Seller that are not used primarily in, or
        are necessary for the continued conduct of, or are not otherwise
        customarily used in, the Business as of the Closing Date,
        including, without limitation, rights to the Seller's corporate
        name and all assets related to remediation incinerators or soil
        remediation technology; 

                  (h)  Employee Benefit Plans.  All Employee Benefit
        Plans of Seller; and

                  (i)  License Agreement.  The license agreement between
        Seller and Thermo Remediation Inc., and any and all assets
        relating thereto, including soil remediation technology.

                                        4PAGE
<PAGE>
             1.3  Assets of Affiliates.  The real estate and building
        used by Seller as its principal place of business for the
        Business (the "Property") is owned by W&C Investment Co. (the
        "Landlord"), leased by the Landlord to TMO, Inc., a wholly-owned
        subsidiary of Thermo Electron Corporation ("TMO") and subleased
        by TMO to Seller.  The Seller agrees to enter into a sublease in
        the form of Exhibit 1.3 hereto (the "Sublease") with Buyer.

             1.4  Limited Assumption of Liabilities.

                  (a)  Subject to the terms and conditions contained in
        this Agreement, Buyer shall, at the Closing, assume and agree to
        pay or perform, or to cause to be paid or performed, only those
        liabilities of Seller that (i) are accurately reflected on the
        Estimated Net Book Value; (ii) have been incurred by the Holcroft
        Division since September 27, 1997, but only to the extent such
        liabilities are trade payables, accruals or tax liabilities and
        have been incurred in the ordinary course of business consistent
        with past practice; (iii) arise under any contract, lease,
        license, permit or other agreement assumed by Buyer pursuant to
        Section 1.1(d) hereof or otherwise pursuant to this Agreement;
        (iv) arise out of warranty obligations undertaken by the Holcroft
        Division with respect to products shipped or sold, or services
        rendered, prior to the Closing; (v) with respect to product or
        service liability claims, arise due to events occurring after the
        Closing regardless of whether such products or services were
        shipped or performed before the Closing except that Seller shall
        remain liable for any and all claims, suits or actions which
        arise due to events occurring prior to Closing and which arise or
        result from the manufacture by Seller of remediation incinerators
        and/or units, including but not limited to soil remediation
        units, the GDC incinerators and the Burns and Roe (CJ 4447) or
        any claims which arise from exposure to asbestos from products
        manufactured by Seller (except for claims arising out of the
        negligence of Buyer) regardless of whether such claim arises due
        to events occurring prior to or after the Closing Date; (vi) are
        assumed by Buyer pursuant to Section 5.4 hereof, and (vii) with
        respect to medical claims of Employees of the Holcroft Division,
        arise due to events occurring after the Closing including without
        limitation the post-closing treatment of preexisting conditions;
        Seller shall remain liable for all claims incurred (i.e., service
        provided) prior to the Closing, regardless of when such claims
        are filed ("Incurred But Not Reported") (collectively, the
        "Assumed Liabilities").  Notwithstanding anything to the contrary
        contained in this Agreement or in any agreement, document,
        certificate or instrument being delivered pursuant to this
        Agreement (collectively, the "Transaction Documents"), Buyer's
        assumption of the Assumed Liabilities shall only be to the extent
        that the existence of such liabilities or obligations is not
        contrary to any covenant, representation or warranty of Seller
        under this Agreement.

                  (b)  Without limiting the terms of Section 1.4(a)
        above, Buyer is expressly not assuming, and Seller shall remain
                                        5PAGE
<PAGE>
        solely liable for, the following: (i) all environmental
        liabilities or contamination which arise or result, directly or
        indirectly, from conditions existing on or prior to the Closing
        Date with respect to the Property, including, without limitation
        all liabilities related to the Oakland Disposal/Bestway Recycling
        litigation with respect to Waterford township; (ii) except as set
        forth in Section 1.4(a), all claims, suits or actions which arise
        due, directly or indirectly, to facts or circumstances existing
        prior to the Closing; (iii) liability for checks written but not
        yet cleared as of the Closing Date (unless such checks are
        accurately reflected or included in the determination of the
        Estimated Net Book Value); (iv) any liabilities or obligations
        relating to medical claims of current or past employees of the
        Holcroft Division arising due to events occurring prior to the
        Closing, including, without limitation, run-off of claims and/or
        deficit balances for reported claims arising due to events
        occurring prior to the Closing and all liabilities Incurred But
        Not Reported; (v) all product liability claims for any products
        manufactured, or services performed, by Seller relating to
        claims, suits or actions which arise due to events occurring
        prior to the Closing, except that Seller shall remain liable for
        any and all claims, suits or actions which arise or result from
        the manufacture by Seller of remediation incinerators and/or
        units, including but not limited to soil remediation units, the
        GDC incinerators, and the Burns and Roe (CJ 4447) or any claims
        which arise from exposure to asbestos from products manufactured
        by Seller (except for claims arising out of the negligence of
        Buyer) regardless of whether such claim arises prior to or after
        the Closing Date; (vi) all liabilities which are assumed by
        Seller pursuant to Section 5.4 hereof; and (vii) any liability
        for Taxes with respect to taxable periods ending on or before the
        Closing Date and the portion ending on the closing date of any
        taxable period that begins before but has not ended on the
        Closing Date (all such liabilities and obligations not being
        assumed by Buyer, "Excluded Liabilities").


                                   ARTICLE II

                       CONSIDERATION AND MANNER OF PAYMENT

             2.1  Purchase Price.

                  (a)  Subject to the provisions of Section 2.2 below,
        the aggregate purchase price to be paid by Buyer to Seller for
        the Business, the Assets and Seller's agreement to abide by the
        Restrictive Covenants (as defined below) is (i) $13,000,000,
        minus Excluded Receivables, minus the 90 Day Receivables (as
        defined below), payable by Buyer at the Closing (net of the
        Holdback Amount as defined in Section 2.1(b)) by wire transfer of
        immediately available funds, plus (ii) $2,218,000, payable by
        Buyer at the Closing by delivery of a promissory note in the form
        of Exhibit 2.1(a)(ii) hereto (the "Note"), plus
        (iii) $663,117.82, payable by Buyer at the Closing by delivery of
                                        6PAGE
<PAGE>
        a promissory note in the form of Exhibit 2.1(a)(iii) hereto (the
        "90 Day Receivables Note") which amount shall equal 90% of the
        aggregate amount of those accounts receivable of Seller, set
        forth on Schedule 2.1 (the "90 Day Receivables"), plus (iv)
        Buyer's assumption of the Assumed Liabilities (the "Purchase
        Price").  The parties agree that all cash receipts related to
        assumed receivables or other activities (expressly excluding
        Excluded Receivables and Retained Receivables) after September
        27, 1997 are for the benefit of Buyer and within six days of the
        date hereof, by mutual agreement of the parties, such cash
        receipts between September 27, 1997 and the Closing Date, less
        liabilities assumed by Buyer pursuant to Section 1.4(a)(ii) but
        paid by Seller and any receivables that are Excluded Receivables
        or Retained Receivables will be remitted by wire transfer from
        Seller to Buyer.  Any checks issued by Seller after September 27,
        1997 for items that relate to Excluded Assets or Excluded
        Liabilities and items that were not accrued for on the Estimated
        Net Book Value will remain the responsibility of Seller.

                  (b)  The parties agree that Buyer shall holdback
        $520,000 of the Purchase Price (the "Holdback Amount") pursuant
        to Section 2.2 hereof.

                  (c)  Prior to the Closing, Seller delivered to Buyer a
        statement of the Company's net book value (the "Net Book Value")
        of the Assets and the Assumed Liabilities based on the Company's
        unaudited balance sheet dated as of September 27, 1997 (the
        "Estimated Net Book Value"), calculated in accordance with GAAP
        consistently applied by Seller and set forth on Exhibit 2.1(c).
        The Purchase Price is based on the assumption that the Estimated
        Net Book Value is equal to $13,218,000 (the "Preliminary Net Book
        Value", as such amount was calculated on March 29, 1997 and as
        set forth on Exhibit 2.1(c)).  Because the parties have
        determined that the Estimated Net Book Value exceeds the
        Preliminary Net Book Value by $2,007,003.04, the Purchase Price
        shall be paid in accordance with this Section 2.1, and, in
        addition, Seller shall retain all right, title and interest in
        and to the Retained Receivables having an aggregate value of
        $2,007,003.04, which amount shall be equal to the difference
        between the Estimated Net Book Value and the Preliminary Net Book
        Value.

             2.2  Post-Closing Adjustment.  In addition, the Purchase
        Price shall be subject to final adjustment as follows:

                  (a)  Purchase Price Adjustment Schedule.  As soon as
        practicable following the Closing Date, but not later than 30
        days after the Closing Date, Buyer shall deliver to Seller a
        schedule (the "Final Purchase Price Adjustment Schedule") setting
        forth Buyer's final determination of the Purchase Price (the
        "Final Purchase Price"), based upon a net book value calculation
        as of September 27, 1997 (the "Final Net Book Value"), which
        shall be calculated in accordance with GAAP consistently applied
        by Seller.
                                        7PAGE
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                  (b)  Protest Notice.  Within 15 days of Buyer's
        delivery of the Final Purchase Price Adjustment Schedule, Seller
        may deliver written notice (the "Protest Notice") to Buyer of any
        objections, and the basis therefor, that Seller may have to the
        Final Purchase Price or the Final Net Book Value.  The failure of
        Seller to deliver such written notice within the prescribed time
        period will constitute Seller's acceptance of the Final Purchase
        Price and the Final Net Book Value, as determined by Buyer.

                  (c)  Resolution of Buyer's Protest.  If Buyer and
        Seller are unable to resolve any disagreement between them within
        10 days following Buyer's receipt of the Protest Notice, then the
        items in dispute will be referred to a nationally recognized
        independent accounting firm (other than Arthur Anderson, LLP or
        Price Waterhouse LLP) (the "Accountants") for final
        determination.  If the Accountants determine that the Buyer's
        calculation of the items in dispute is correct, the Seller shall
        be liable for all of the fees and expenses of the Accountants of
        the items in dispute.  If the Accountants determine that the
        Seller's calculation of the items in dispute is correct, the
        Buyer shall be liable for all of the fees and expenses of the
        Accountants.  If the Accountants' final determination is between
        the Buyer's calculation and Seller's calculation of the items in
        dispute, the Accountants' fees and expenses will be allocated
        between the Buyer and Seller by applying a pro rata, straight
        line allocation based on the difference between both (i) each of
        the Buyer's and Seller's calculation of the items in dispute on
        the one hand, and (ii) the Accountants' final determination and
        each of Buyer's and Seller's calculation of the items in dispute
        on the other hand.  For example, if the Buyer's calculation of
        the items in dispute is $100,000, the Seller's calculation of the
        items in dispute is $50,000 (thereby making the disputed
        difference $50,000), and the Accountants' final determination is
        $90,000, the Seller shall pay for 80% ($40,000 indicating the
        difference between the Seller's and Accountants' determination
        divided by $50,000 indicating the difference between the Buyer's
        and Seller's calculation) and the Buyer shall pay for 20% of the
        fees and expenses of the Accountants.

                  (d)  Payment of Adjustment.  Within 10 days following
        the final determination of the Final Purchase Price and Final Net
        Book Value pursuant to this Section 2.2:

                           (i)   if the Final Net Book Value is less than
                      the Estimated Net Book Value, Buyer will be
                      entitled to receive, an amount equal to the
                      deficiency, up to the Holdback Amount net of any
                      amount for which Seller is liable pursuant to
                      Section 2.2(c) which deduction shall not exceed
                      $10,000.00; provided that any remaining balance of
                      the Holdback Amount shall be distributed to
                      Seller;

                                        8PAGE
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                           (ii)  if the Final Net Book Value is equal to
                      the Estimated Net Book Value, the Buyer will
                      distribute to Seller the entire Holdback Amount;
                      and

                           (iii) if the Final Net Book Value is greater
                      than the Estimated Net Book Value, the Buyer will
                      distribute the entire Holdback Amount to Seller
                      and Buyer will pay Seller the excess in an amount
                      up to, but in no event to exceed, $520,000 net of
                      any amount for which Buyer is liable pursuant to
                      Section 2.2(c), which deduction shall not exceed
                      $10,000.00.

                  (e)  Agreed Upon Amounts.  Buyer and Seller agree that
        both the Estimated Net Book Value and the Final Net Book Value
        will (i) reflect or include reserves which are equal to, or
        greater than, the reserves set forth in the Preliminary Net Book
        Value, (ii) take into account any credits which Buyer and Seller
        reasonably agree to be due to customers of Seller for products
        shipped prior to the Closing, (iii) exclude capitalized research
        and development costs in the amount of $287,748.00, (iv) exclude
        non-depreciated fixed assets related to relocation costs in the
        amount of $46,517.14 and (v) employee advances not expensed in
        the amount of $46,567.82.  Seller has reserved $200,000 on the
        Estimated Net Book Value, representing 50% of $400,000 of slow
        moving or obsolete inventory, for which no further purchase price
        adjustment will be made.  If there is any slow moving or obsolete
        inventory in excess of $400,000 but less than $500,000, an
        adjustment to the Final Net Book Value will be made to the extent
        of 50% of such amount; for any amounts in excess of $500,000 a
        100% adjustment will be made subject to Section 2.2(f) below.

                  (f)  Limitation of Liability; Exclusive Remedy.
        Notwithstanding anything to the contrary in this Agreement or any
        Transaction Document, in no event shall any adjustment to the
        Purchase Price in favor of Buyer exceed the aggregate of the
        Holdback Amount and in no event shall any adjustment to the
        Purchase Price in favor of Seller exceed $520,000.  The
        provisions of this Section 2.2 shall be the exclusive remedy by
        which the parties may cause adjustments to the Purchase Price,
        and neither party shall have any recourse to any other provision
        of this Agreement or any Transaction Document to adjust the
        Purchase Price to any extent not provided for in this Section
        2.2; provided, however, that the foregoing shall not prevent (i)
        the Buyer from asserting any claims for indemnification under
        Article 7 hereof, to the extent that Buyer has not submitted a
        claim for adjustment to the Purchase Price pursuant to this
        Section 2.2 and did not, in good faith, know or believe, prior to
        the time the Buyer delivers its Final Purchase Price Adjustment
        Schedule, that such claims for indemnification existed or (ii)
        the Seller from asserting any claims for indemnification under
        Article 7 hereof.

                                        9PAGE
<PAGE>
             2.3. Noncompetition Payments.  Buyer and the Seller hereby
        agree that $50,000 of the Purchase Price shall be in
        consideration for Seller's agreement to abide by the Restrictive
        Covenants (as defined herein).

             2.4. Purchase Price Allocation.  The Buyer and Seller shall
        attempt to allocate the cash portion of the Purchase Price among
        the Assets by mutual written agreement within one hundred and
        eighty (180) days after the Closing.  Seller and Buyer agree to
        make all appropriate tax filings on a basis consistent with the
        agreed allocation, if any.


                                   ARTICLE III

                     SELLER'S REPRESENTATIONS AND WARRANTIES

             As an inducement to Buyer to enter into and perform its
        obligations under this Agreement, Seller represents and warrants
        to and with Buyer, on the date hereof, as follows:

             3.1  Organization and Good Standing.  Seller is a
        corporation duly organized, validly existing and in good standing
        under the laws of the State of Delaware.  Seller has full
        corporate power and authority to execute and deliver the
        Transaction Documents to which it is a party, to perform its
        obligations hereunder and thereunder and to consummate the
        transactions contemplated hereby and thereby.  Seller is duly
        licensed and qualified to do business as a foreign corporation
        and is in good standing in each jurisdiction in which the
        location of the Assets or the character of the operations of the
        Business requires such license or qualification, except for those
        jurisdictions where the failure to be so qualified or in good
        standing would not individually or in the aggregate have a
        material adverse effect on the Assets or the operations of the
        Business.

             3.2  Corporate Authorization.  The execution and delivery of
        this Agreement and the other Transaction Documents, and the
        performance by Seller of its obligations hereunder and
        thereunder, have been duly authorized by all necessary corporate
        action.  This Agreement and the other Transaction Documents to
        which Seller is a party constitute the legal, valid and binding
        obligations of Seller, enforceable against Seller in accordance
        with their respective terms, subject to applicable bankruptcy,
        insolvency, reorganization, receivership, moratorium and other
        similar laws affecting the rights and remedies of creditors
        generally, and to general principles of equity, whether applied
        by a court of law or equity.

             3.3  No Violation.  The execution, delivery and performance
        by Seller of the Transaction Documents to which it is a party and
        the consummation of the transactions contemplated herein and
        therein will not:
                                       10PAGE
<PAGE>
                  (a)  except as set forth in Schedule 3.3, result in the
        breach of any of the terms or conditions of, or constitute a
        default under, or in any manner release any party thereto from
        any obligation under, any mortgage, note, bond, indenture,
        contract, agreement, license or other instrument or obligation of
        any kind or nature by which Seller, the Business or any of the
        Assets may be bound.

                  (b)  violate any order, writ, injunction, regulation,
        statute or decree of any court, administrative agency, or
        governmental body specifically applicable to Seller, the Assets
        or the Business; or

                  (c)  violate any provision of the Articles of
        Incorporation, Bylaws or Charter Documents of Seller.

             3.4  No Consent Required.  Except as set forth on Schedule
        3.4, no consent, approval, order or authorization of, or
        declaration, filing or registration with, any person, entity or
        governmental authority is required to be made or obtained by
        Seller in connection with the authorization, execution, delivery
        or performance of this Agreement, the other Transaction Documents
        or the transactions contemplated hereby and thereby.

             3.5  Financial Statements.  Schedule 3.5 contains the
        following financial statements of the Holcroft Division of Seller
        (the "Financial Statements"):

                       (i)     The unaudited financial statements for
                  fiscal years ended March 28, 1992 through March 29,
                  1997; and

                       (ii)    The unaudited interim financial
                  statements for the six months ended September 27,
                  1997.

             Each of the Financial Statements is complete and correct in
        all material respects, is consistent with the books and records
        of the Holcroft Division and fairly presents the Holcroft
        Division's financial condition, assets and liabilities as of its
        respective dates and the results of operations and cash flows for
        the periods related thereto.  The Financial Statements were
        prepared in accordance with GAAP consistently applied by Seller
        (except for footnote disclosure). 

             3.6  Absence of Undisclosed Liabilities.  As of the Closin

        Date, to Seller's knowledge, Seller will not have any material
        debts, liabilities or obligations that can reasonably be expected
        to have a material adverse effect on the Business or the Assets
        (whether accrued, absolute, contingent, direct, indirect,
        perfected, inchoate, unliquidated or otherwise and whether due or
        to become due) arising out of transactions entered into on or
        prior to the Closing Date, or any transaction, series of
                                       11PAGE
<PAGE>
        transactions, action or inaction occurring on or prior to the
        Closing Date, or any state of facts or condition existing on or
        prior to the Closing Date (regardless of when such liability or
        obligation is asserted), including, but not limited to,
        liabilities or obligations on account of Taxes or governmental
        charges or penalties, interest or fines thereon or in respect
        thereof, except (a) as and to the extent clearly and accurately
        reflected and accrued for or reserved against in the Estimated
        Net Book Value, (b) for liabilities specifically delineated on
        Schedule 3.6, (c) for liabilities expressly disclosed on any
        Schedule hereto and (d) for liabilities incurred in the ordinary
        course of business since September 27, 1997.

             3.7  Assets.

                  (a)  Title.  Except for the Property which is the
        subject of the Sublease and except as set forth on Schedule 3.7,
        Seller owns all of the Assets and the Assets constitute all of
        the property and assets which are considered part of the Business
        and all of the assets deemed necessary by Seller to conduct the
        Business as presently conducted.  Seller has the right to convey,
        and upon the consummation of the transactions contemplated by
        this Agreement Seller will have conveyed and Buyer will be vested
        with, good and marketable title and interest in and to the
        Assets, free and clear of all Liens except as set forth on
        Schedule 3.7.

                  (b)  Inventories.  Except as set forth on Schedule 3.7,
        the inventories of Seller related to the Business are in good and
        saleable condition, subject to the reserves used in determining
        the Estimated Net Book Value, which reserves are sufficient to
        cover all inventory which is not good and saleable in the
        ordinary course of business, obsolete inventory, or materials
        below standard quality.  The inventories constituting raw
        materials are of a type that are readily useable in connection
        with the finished goods offered for sale by the Seller.

                  (c)  Accounts Receivable.  All of the Seller's accounts
        receivable arising out of, or related to, the Business have
        arisen in bona fide arm's-length transactions in the ordinary
        course of business.  Except to the extent of any reserves for bad
        debts set forth in the determination of the Estimated Net Book
        Value, which is sufficient to cover all bad debts, all such
        receivables are valid and binding obligations of the account
        debtors without any counterclaims, set-offs or other defenses
        thereto and are collectible in the ordinary course of business.

                  (d)  Condition and Location.  Except as set forth in
        Schedule 3.7, on the Closing Date, the tangible, personal
        property comprising the Assets (other than inventory) is in good
        operating condition and is useable in the ordinary course of
        business.  All of such tangible assets which are part of the
        Assets are in good condition and repair, ordinary wear and tear
        excepted.  None of such Assets requires any repair or
                                       12PAGE
<PAGE>
        replacement, except for maintenance in the ordinary course of
        business.  Except as set forth on Schedule 3.7, none of the
        tangible personal property of the Seller used in the Business is
        held under any lease, security agreement, conditional sales
        contract or other title retention or security arrangement, or is
        located other than at the Property.

                  (e)  Unbilled Work-in-Progress.  The current status of
        the Company's contracts with respect to unbilled work-in-progress
        is accurately reflected in the Estimated Net Book Value.

             3.8  Compliance with Laws; Permits.  Seller, with respect to
        its Holcroft Division, is not in material violation of any law,
        regulation or requirement applicable to it, the Assets, any
        Employee Benefit Plans or the operation of the Business, nor has
        the Seller received written notice of any such violation, that
        individually or in the aggregate would have a material adverse
        affect on the Assets or the operation of the Business.  Seller
        holds all of the material Permits necessary or desirable for the
        current use, occupancy or operation of the Assets, except where
        failure to obtain such Permits would not individually, or in the
        aggregate, have a material adverse affect on the Assets or the
        Business, and all of which are set forth on Schedule 3.8.  Seller
        is in compliance with each of such Permits, all of which are in
        full force and effect.  Except as set forth in Schedule 3.8, each
        of the Permits is freely transferable and will constitute part of
        the Assets.  Seller further represents and warrants that all of
        its employees at the Holcroft Division have proper citizenship
        and/or work authorization documents.

             3.9  Property.  The Property constitutes all real property
        used and occupied by Seller in connection with the Business.  The
        Property is subject to a lease between TMO and Landlord (the
        "Lease"), and to a sublease between TMO and Seller (the "TMO
        Sublease").  Each of the Lease and the TMO Sublease is in full
        force and effect and no default by TMO or Seller has occurred
        under the Lease or the TMO Sublease.

                  (a)  Easements.  Seller has all easements and rights
        necessary to conduct the Business on the Property as presently
        conducted;

                  (b)  Condemnation.  No portion of the Property is
        subject to any pending condemnation proceeding or proceeding by
        any public or quasi-public authority materially adverse to the
        Property and, to the knowledge of Seller, there is no threatened
        condemnation or proceeding with respect to the Property;

                  (c)  Condition.  To the knowledge of Seller, the
        buildings and fixtures located on the Property including, without
        limitation, heating, ventilation, mechanical, electrical, sewer,
        sprinkler and air conditioning systems, roof, foundation and
        floors (the "Building and Fixtures"), have been properly
        maintained and are in operating condition.  To the knowledge of
                                       13PAGE
<PAGE>
        Seller, the Building and Fixtures are in good operating
        condition, are substantially fit for the purposes for which they
        are being utilized, and are not in need of any material repair or
        replacement;

                  (d)  Zoning.  To the knowledge of Seller, except as
        disclosed in Schedule 3.9(d), the Property (or the use, occupancy
        and ownership thereof) does not violate any zoning, subdivision,
        health, safety, handicapped persons, landmark preservation,
        wetlands preservation, building, land use or other ordinances,
        laws, codes or regulations or any covenants, restrictions or
        other documents of record (including the Americans with
        Disabilities Act), nor, has any such violation been claimed by,
        nor has any notice of any violation been issued to Seller by any
        governmental, public or quasi-public authority;

                  (e)  Subleases.  Except as set forth on Schedule
        3.9(e), there are no leases, subleases, licenses, concessions or
        other agreements, written or oral, granting to any party or
        parties, other than Buyer, the right of use or occupancy of any
        portion of the Property; and

                  (f)  Utilities.  The Property is supplied with
        utilities and other services necessary for the operation of the
        Business as presently conducted, and all such services are
        adequate to conduct that portion of the Business presently
        conducted at the Property and are, to the knowledge of Seller, in
        accordance with all laws, ordinances, rules and regulations
        applicable to Seller or the Property, except where failure to
        comply with such laws, ordinances, rules and regulations would
        not have individually or in the aggregate a material adverse
        effect on the Assets or in the operations of the Business as
        presently conducted.

             3.10 Leases.  All leases of the personal property leased by
        Seller in connection with the Business, including all such leases
        with related parties or affiliates, are listed on Schedule 3.10,
        correct and complete copies of which previously have been
        furnished to Buyer.  All leases with affiliates and related
        parties, if any, carry terms and conditions no less favorable nor
        more favorable in all material respects to the Seller than those
        which could have obtained in arm's-length transactions with
        unrelated third parties.  Seller enjoys peaceful and undisturbed
        possession under all such leases, and all of such leases are
        valid and in full force and effect and neither Seller, nor to the
        knowledge of Seller, any other party thereto, is in default under
        any of such leases and no event has occurred which with the
        giving of notice or the passage of time or both could constitute
        a default under any of such leases.

             3.11 Contracts.  Schedule 3.11 is a correct and complete
        list of every material contract, agreement, purchase order,
        relationship or commitment, written or oral, arising out of or
        related to the Business, to which Seller is a party or by which
                                       14PAGE
<PAGE>
        it or any of the Assets are bound (the "Material Contracts"),
        correct and complete copies of which previously have been
        provided to the Buyer.  Except as set forth on Schedule 3.11,
        each of the Material Contracts may be assigned to Buyer without
        the consent, approval, novation or waiver of any third party.
        Seller is not in default, and no event has occurred which with
        the giving of notice or the passage of time or both would
        constitute a default by Seller, under any Material Contract.  To
        the knowledge of Seller, no other party to the Material
        Contracts, is in default under a Material Contract and no event
        has occurred which with the giving of notice or the passage of
        time or both could constitute a default under any of such
        Material Contracts.  Since March 29, 1997, there has been no
        cancellation or threatened termination of a Material Contract.
        For purposes of this Agreement the term "Material Contracts"
        shall include all contracts which (i) require aggregate payments
        to or by Seller in excess of $20,000 or (ii) have a term or
        effective period longer than 1 (one) year in duration.

             3.12 Intellectual Property.  Schedule 3.12 contains a
        complete and correct list of all Proprietary Rights owned by
        Seller which are used in connection with the Business, including,
        without limitation, filed and pending patent applications and
        applications for the registration of other Proprietary Rights
        owned or filed by Seller.  Schedule 3.12 also contains a complete
        and correct list of all licenses and other rights granted by
        Seller to any third party with respect to the Proprietary Rights
        and licenses and other rights granted by any third party to
        Seller in connection with the Business.  With respect to the
        Proprietary Rights: (a) Seller owns and possesses all right,
        title and interest in and to, or has a valid license to use, all
        of the Proprietary Rights necessary for the operation of the
        Business as presently conducted and none of such Proprietary
        Rights have been abandoned; (b) no claim by any third party
        contesting the validity, enforceability, use or ownership of any
        such Proprietary Rights has been made, is currently outstanding
        or, to the knowledge of Seller, is threatened and, to the
        knowledge of Seller, there is no reasonable basis for any such
        claim; (c) neither Seller nor any registered agents of Seller
        have received any notices of, nor is Seller aware of any
        reasonable basis for, an allegation of, any infringement or
        misappropriation by, or conflict with, any third party with
        respect to such Proprietary Rights, nor has Seller or any
        registered agent of Seller received any written claims of
        infringement or misappropriation of or other conflict with any
        Proprietary Rights of any third party; and (d) Seller, in
        operating the Holcroft Division, has not infringed,
        misappropriated or otherwise violated any Proprietary Rights of
        any third parties, and Seller is not aware of any infringement,
        misappropriation or conflict which will occur as a result of the
        continued operation of the Business.

             3.13 Employee Benefit Plans.  With respect to the employees
        of the Holcroft Division and except as set forth in
                                       15PAGE
<PAGE>
        Schedule 3.13, neither Seller nor any Plan Affiliate has
        maintained, sponsored, adopted, made contributions to or
        obligated itself to make contributions to or to pay any benefits
        or grant rights under or with respect to any "Employee Pension
        Benefit Plan" (as defined in Section 3(2) of ERISA), "Employee
        Welfare Benefit Plan" (as defined in Section 3(1) of ERISA),
        "Multi-employer Plan" (as defined in Section 3(37) of ERISA),
        plan of deferred compensation, medical plan, life insurance plan,
        long-term disability plan, dental plan or other plan providing
        for the welfare of any of Seller's or any Plan Affiliate's
        employees or former employees or beneficiaries thereof, personnel
        policy (including but not limited to vacation time, holiday pay,
        bonus programs, moving expense reimbursement programs and sick
        leave), excess benefit plan, bonus or incentive plan (including
        but not limited to stock options, restricted stock, stock bonus
        and deferred bonus plans), salary reduction agreement,
        change-of-control agreement, employment agreement, consulting
        agreement, workers compensation law, unemployment compensation
        law, social security law or any other benefit, program or
        contract (all such plans listed on Schedule 3.13 collectively,
        "Employee Benefit Plans"), whether written, voluntary or pursuant
        to a collective bargaining agreement or law, which could give
        rise to or result in Seller or such Plan Affiliate having any
        debt, liability, claim or obligation of any kind or nature,
        whether accrued, absolute, contingent, direct, indirect, known or
        unknown, perfected or inchoate or otherwise and whether or not
        due or to become due.  Correct and complete copies of all
        Employee Benefit Plans previously have been furnished to Buyer.
        For purposes of this Agreement, "Plan Affiliate" means any person
        or entity with which Seller constitutes all or part of a
        controlled group of corporations, a group of trades or businesses
        under common control or an affiliated service group, as each of
        those terms are defined in Section 414 of the Code.

             3.14 Salaries.  Schedule 3.14 is a true, complete and
        correct list setting forth, with respect to the Holcroft Division
        (i) the names and current compensation rate and compensation of
        all individuals presently employed by Seller on a salaried basis,
        (ii) the names and current compensation rate of all individuals
        presently employed by the Seller on an hourly or piecework basis
        and (iii) the names and total annual compensation for all
        independent contractors who render services on a regular basis to
        the Seller whose current annual compensation is in excess of
        $20,000.  Except as set forth in Schedule 3.14, no person listed
        thereon has received any bonus or increase in compensation since
        March 29, 1997 and there has been no "general increase" in the
        compensation or rate of compensation payable to any such
        employees since March 29, 1997 nor since that date has there been
        any promise to the employees listed on Schedule 3.14, orally or
        in writing, of any bonus or increase in compensation, whether or
        not legally binding, except for increases in the ordinary course
        of business consistent with Seller's past compensation practices
        and obligations incurred under existing Employee Benefit Plans
        and pursuant to the Union Contract.
                                       16PAGE
<PAGE>
             3.15 Personnel Agreements, Plans and Arrangements.  Except
        for the items listed in Schedule 3.15, Seller, with respect to
        the Holcroft Division, is not a party to or obligated to any (a)
        outstanding contracts with current or former employees, agents,
        consultants, advisers, salesmen, sales representatives,
        distributors, sales agents, independent contractors, or dealers,
        or (b) collective bargaining agreements or contracts with any
        labor union or other representative of employees or any employee
        benefits provided for by any such agreement, correct and complete
        copies of which previously have been furnished to Buyer.  With
        respect to the Holcroft Division, no strike, union organizational
        activity, allegation, charge or complaint of employment
        discrimination or other similar occurrence has occurred during
        the past three fiscal years of Seller or is pending or, to the
        knowledge of Seller, threatened against Seller nor does Seller
        know any basis for any such allegation, charge, or complaint.
        With respect to the Holcroft Division, Seller has complied in all
        material respects with all applicable laws relating to the
        employment of labor, including provisions thereof relating to
        wages, hours, equal opportunity, collective bargaining and the
        payment of social security and other taxes.  There are no
        administrative charges or court complaints pending or, to the
        knowledge of Seller, threatened against Seller, relating to the
        Holcroft Division, before the U.S. Equal Employment Opportunity
        Commission or any state or federal court or agency concerning
        alleged employment discrimination or any other matters relating
        to the employment of labor.

             3.16 Workers Compensation and Medical Claims.  Schedule 3.16
        sets forth all expenses, obligations, duties and liabilities
        relating to any claims by employees and former employees
        (including dependents and spouses) of the Holcroft Division (or
        predecessors) made since April 1, 1995 and the extent of any
        specific accrual on or reserve therefor set forth on the
        Financial Statements and used in determining the Estimated Net
        Book Value, for (a) costs, expenses and other liabilities under
        any workers compensation laws, regulations, requirements or
        programs and (b) any other medical costs and expenses.  Except as
        set forth on Schedule 3.16, to the knowledge of Seller, no
        claims, injuries, fact, event or condition exists which would
        give rise to a material claim (individually or in the aggregate)
        by employees and former employees (including dependents and
        spouses) of the Holcroft Division of Seller under any Employee
        Benefit Plans that comply with workers compensation laws,
        regulations, requirements or programs or that provide for any
        other medical costs and expenses or under any similar plans or
        programs maintained or contributed to by Buyer following the
        Closing Date.  

             3.17 Suppliers.  Schedule 3.17 is a complete and correct
        list of the ten largest suppliers to the Holcroft Division (in
        terms of the Seller's purchases from such suppliers during the
        fiscal year ended March 29, 1997) of key materials and services
                                       17PAGE
<PAGE>
        and commodities, exclusive of utility services.  In the last
        twelve months, no such supplier has canceled or otherwise
        terminated, or, to the knowledge of Seller, threatened to cancel
        or terminate, its relationship with Seller.  Seller has not
        received any written notice or oral notice and has no knowledge
        that any such supplier intends to cancel or otherwise modify its
        relationship with Seller on account of the acquisition of the
        Assets by Buyer or otherwise.

             3.18 Customers.  Schedule 3.18 is a complete list by dollar
        volume of sales made or services provided within Seller's fiscal
        years ended March 30, 1996 and March 29, 1997, to the twenty
        largest customers of the Holcroft Division.  In the last twelve
        months, no such customer has canceled or otherwise terminated,
        or, to the knowledge of Seller, threatened to cancel or otherwise
        terminate, its relationship with Seller, or reduced, or
        threatened to reduce, its business with the Seller.  Seller has
        not received any written or oral notice and has no knowledge that
        any such customer intends to cancel or otherwise modify its
        relationship with Seller on account of the acquisition of the
        Assets by Buyer or otherwise.  Seller represents and warrants
        that, with respect to the Holcroft Division, (i) no credits (for
        any reason, whether due to returns, discounts or otherwise) are
        due to any customers that are not reflected in the Estimated Net
        Book Value and (ii) no penalty payments resulting from Seller's
        lack of performance under any contract are currently due and
        owing, or, to the knowledge of Seller, will be due to any
        customers that are not adequately reserved for in the Estimated
        Net Book Value.

             3.19 Interest of Seller in Customers, etc.  Except as set
        forth in Schedule 3.19, neither Seller nor any of its respective
        affiliates has any direct or indirect interest in any competitor,
        supplier or customer of the Holcroft Division or in any person
        from whom or to whom the Holcroft Division leases any real or
        personal property or in any other person with whom the Holcroft
        Division has any business relationship.

             3.20 Intercompany Transaction.  Schedule 3.20 describes, in
        respect of the Business, (i) all material management,
        administrative, computer, telephone or other services provided by
        any of Seller's affiliates to the Holcroft Division and all such
        services provided by the Holcroft Division to any of Seller's
        affiliates, and (ii) all other material contracts, agreements,
        arrangements or transactions (including the purchase and sale of
        inventory, supplies and other goods) between the Holcroft
        Division, on the one hand, and any of Seller's affiliates on the
        other hand, currently in effect, in each case setting forth the
        terms thereof if not effected on an arm's-length basis.

             3.21 Books and Records.  All the books, records and accounts
        included in the Assets are in all material respects accurate and
        complete, are in accordance with good business practice and all
        laws, regulations and rules applicable to the Business and
                                       18PAGE
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        accurately present and reflect in all material respects all of
        the transactions described therein.

             3.22 Insurance Policies.  Schedule 3.22 contains a correct
        and complete list and description (including policy numbers), of
        all past and present insurance policies owned by Seller
        pertaining to the Business, including, without limitation, all
        occurrence product liability policies covering the period
        beginning January 1, 1992 and ending on the Closing Date. Copies
        of all such insurance policies have been previously provided to
        Buyer.  The present insurance policies are in full force and
        effect, and Seller is not in default under any of them.  Seller
        has not received any written or oral notice of cancellation or
        intent to cancel or increase premiums with respect to present
        insurance policies nor, to the knowledge of Seller, is there any
        basis for any such action.  Schedule 3.22 also contains a list of
        all pending claims with any insurance Seller and any instances
        within the previous three years of a denial of coverage of the
        Seller by any insurance Seller which relate to the Business.

             3.23 Bank Accounts.  Schedule 3.23 is a complete and correct
        list of each bank in which Seller has an account, safe deposit
        box, or lockbox pertaining to the Business, the number of each
        such account or box and the names of all persons authorized to
        draw thereon or to have access thereto.

             3.24 Taxes.  Seller has filed all Tax Returns that it is
        required to have filed prior to the Closing in connection with
        the Assets or the operation of the Business and such returns are
        true and correct.  Seller has paid all Taxes, interest and
        penalties, if any, reflected on such Tax Returns or otherwise due
        and payable by it in connection with the Assets or the operation
        of the Business.  Except as set forth in the calculation of the
        Estimated Net Book Value, Buyer does not have any liability
        whatsoever for Taxes with respect to taxable periods ending on or
        before September 27, 1997 and the portion ending on the closing
        date of any taxable period that begins before but has not ended
        on the Closing Date.  Any deficiencies proposed as a result of
        any governmental audits of such Tax Returns have been paid or
        settled, and there are no present disputes as to Taxes payable by
        Seller in connection with the Assets or the operation of the
        Business.

             3.25 Litigation.  Except as set forth in Schedule 3.25,
        there is no claim, counter-claim, action, suit, order, proceeding
        or investigation pending or, to the knowledge of Seller,
        threatened against or involving Seller (or pending or threatened
        against any of the officers, directors or key employees of Seller
        with respect to its business activities on behalf of Seller) or
        any Employee Benefit Plan, with respect to or affecting the
        Assets or the Business, or relating to the transactions
        contemplated hereby, before any court, agency or other
        governmental body; nor, to the knowledge of Seller, is there any
        reason for any such claim, action, suit, proceeding or
                                       19PAGE
<PAGE>
        governmental investigation.  Seller is not, with respect to the
        Assets or the Business, directly subject to or affected by any
        order, judgment, decree or ruling of any court or governmental
        agency.  Seller does not have any reason to believe it is
        exposed, from a legal standpoint, to any liability which may be
        material to the Business or the Assets, except as set forth in
        Schedule 3.25.  Except as set forth in Schedule 3.25, Seller is
        not engaged in any legal action to recover monies due it or for
        damages sustained by it.

             3.26 Product Warranties.  To the knowledge of the Seller,
        all products sold, serviced or distributed by the Holcroft
        Division of Seller at any time on or prior to the Closing Date
        have been in conformance with all applicable contractual
        commitments and all express or implied warranties of Seller, and
        no material liability exists for replacement thereof or other
        damages in connection with such sales or deliveries at any time
        prior to the Closing Date (except as may be reflected or reserved
        for in the determination of the Estimated Net Book Value, which
        is adequate to cover all potential product claims).  Seller's
        standard terms and conditions of sale with respect to the
        Holcroft Division, including guarantee and warranty provisions,
        are set forth in Schedule 3.26.  Except as set forth in Schedule
        3.26, no products sold, serviced or distributed by Seller through
        the Holcroft Division prior to the Closing Date are subject to
        any guarantee or warranty other than Seller's standard terms and
        conditions of sale.

             3.27 Environmental and Safety Requirements.  With respect to
        the Holcroft Division:

                  (a)  No Hazardous Materials.  Except as set forth in
        Schedule 3.27, Seller has never generated, transported, treated,
        stored, disposed of or otherwise handled any Hazardous Materials
        at any site, location or facility used by Seller in the Business,
        and no such Hazardous Materials are present on, in or under any
        real property presently owned or used by Seller in the Business
        (including the Properties), and such property does not contain
        (including without limitation, containment by means of any
        underground storage tank) any Hazardous Materials in violation of
        any applicable Environmental and Safety Requirement.  Except as
        set forth on Schedule 3.27, to the Seller's knowledge there are
        no underground storage tanks on the Property, and those listed on
        Schedule 3.27 are maintained and monitored in compliance with all
        applicable Environmental and Safety Requirements.

                  (b)  No Actions or Proceedings.  Except as set forth in
        Schedule 3.27, Seller has not been subject to, nor has any Seller
        received any notice (written or oral) of, any private,
        administrative or judicial action, order, or investigation or any
        notice (written or oral) of any intended private, administrative,
        or judicial action, order or investigation relating to the
        presence or alleged presence of Hazardous Materials in, under or
        upon any real property owned or used by Seller in the Business,
                                       20PAGE
<PAGE>
        and other than as set forth on Schedule 3.27, to the Seller's
        knowledge there is no reasonable basis for any such notice or
        action; and there are no pending or threatened actions,
        investigations or orders or proceedings (or notices of potential
        actions or proceedings) from any governmental agency or any other
        entity regarding any matter relating to Environmental and Safety
        Requirement.

                  (c)  Other Condition.  Except as set forth in Schedule
        3.27, to the Seller's knowledge no facts, events or conditions
        with respect to the past or present operations or facilities of
        Seller, the Assets or the Business exist which could reasonably
        be expected to interfere with or prevent continued compliance
        with, or could give rise to any common law or statutory liability
        or otherwise form the basis of any claim, action, suit,
        proceeding, hearing or investigation against or involving the
        Assets or the Business under any Environmental and Safety
        Requirement based on any such fact, event or circumstance,
        including, without limitation, liability for cleanup costs,
        personal injury or property damage.

                  (d)  Definitions.  For purposes of this Agreement,
        "Environmental and Safety Requirements" means all federal, state
        and local laws, rules, regulations, ordinances, orders, statutes,
        actions, policies and requirements relating to public health and
        safety, worker health and safety, pollution or protection of the
        environment, all through the Closing Date.  For purposes of this
        Agreement, "Hazardous Materials" means (i) hazardous substances,
        extremely hazardous substances or hazardous wastes, as those
        terms are defined by the Comprehensive Environmental Response,
        Compensation and Liability Act, 42 U.S.C. S9601 et seq., the
        Resource Conservation and Recovery Act, 42 U.S.C. S6901 et seq.,
        and any other Environmental and Safety Requirements; (ii)
        petroleum, including without limitation, crude oil or any
        fraction thereof which is liquid at standard conditions of
        temperature and pressure (60 degrees Fahrenheit and 14.7 pounds
        per square inch absolute); (iii) any radioactive material,
        including, without limitation, any source, special nuclear, or
        by-product material as defined in 42 U.S.C. S2011 et seq.; (iv)
        asbestos in any form or condition; and (v) any other material,
        substance or waste to which liability or standards of conduct may
        be imposed under any Environmental and Safety Requirements.

             3.28 Conduct of the Business.  Except as set forth on
        Schedule 3.28, since March 29, 1997, Seller has conducted the
        Business only in the ordinary course of business consistent with
        past custom and practice, and has incurred no liabilities other
        than in the ordinary course of business consistent with past
        custom and practice and there has been no material adverse change
        in the Assets, condition (financial or otherwise), operating
        results, or the knowledge of Seller, employee or customer
        relations, business activities or, business prospects of Seller
        or the Business.  Without limitation of the foregoing and except
        as set forth on Schedule 3.28, since March 29, 1997, Seller has
                                       21PAGE
<PAGE>
        not, in connection with the Business:

                  (a)  Dispositions.  Voluntarily or involuntarily sold,
        transferred, abandoned, surrendered, subjected to a Lien or
        otherwise disposed of any material assets or property rights
        relating to or used in the operation of the Business other than
        in the ordinary course of business, consistent with past action
        and practice;

                  (b)  Accounting.  Changed any accounting principles,
        methods or practices utilized by it or changed any of its
        depreciation rates or amortization policies or rates;

                  (c)  Loans.  Other than as set forth on the Estimated
        Net Book Value, made any loan or advance to any party;


                  (d)  Indebtedness.  Other than as set forth on the
        Estimated Net Book Value, incurred debt, liabilities, or
        obligations of any nature whether accrued, absolute, contingent,
        direct, indirect, perfected or otherwise and whether due or to
        become due other than in the ordinary course of business,
        consistent with past action and practice;

                  (e)  Material Transactions.  Entered into any material
        transaction involving a capital expenditure or commitment of more
        than $25,000, other than in the ordinary course of business, and
        if still in existence, properly disclosed in the Schedules
        hereto.

                  (f)  Other.  Committed to any of the foregoing, except
        in the ordinary course.
                                   ARTICLE IV

                     BUYER'S REPRESENTATIONS AND WARRANTIES

             As an inducement to Seller to enter into and perform its
        obligations under this Agreement, Buyer hereby represents and
        warrants to and with Seller (on the date hereof and as of the
        Closing) as follows:

             4.1  Organization and Good Standing.  Buyer is duly
        organized, validly existing and in good standing under the laws
        of the State of Delaware and has full power and authority to
        execute and deliver this Agreement and the other Transaction
        Documents to be executed by it, to perform its obligations
        hereunder and thereunder and to consummate the transactions
        contemplated hereby and thereby.  Buyer is duly licensed and
        qualified to do business as a foreign limited liability company
        and is in good standing in the state of Michigan.


             4.2  Authorization.  The execution and delivery of this
        Agreement and the Transaction Documents, and the performance by
                                       22PAGE
<PAGE>
        Buyer of its obligations hereunder and thereunder, have been duly
        authorized by all necessary organizational action.  This
        Agreement and the other Transaction Documents to which Buyer is a
        party constitute the legal, valid and binding obligations of
        Buyer enforceable against Buyer in accordance with their
        respective terms, subject to the applicable bankruptcy,
        insolvency, reorganization, receivership, moratorium and other
        similar laws affecting the rights and remedies of creditors
        generally, and to general principles of equity, whether applied
        by a court of law or equity.

             4.3  No Violation.  The execution, delivery and performance
        by Buyer of this Agreement and the other Transaction Documents
        and the consummation of the transactions contemplated herein and
        therein will not:

                  (a)  result in the breach of any of the terms or
        conditions of, or constitute a default under, or in any manner
        release any party thereto from any obligation under, any
        mortgage, note, bond, contract, indenture, agreement, license or
        other instrument or obligation of any kind or nature to which
        Buyer is now a party or by which any of its properties or assets
        may be bound;

                  (b)  violate any order, writ, injunction regulation,
        statute or decree of any court, administrative agency or
        governmental body specifically applicable to Buyer; or

                  (c)  violate any provision of the Buyer's Operating
        Agreement.

             4.4  No Consent Required.  No consent, approval, order or
        authorization of, or declaration, filing or registration with,
        any person or governmental authority, including, but not limited
        to, any Hart-Scott-Rodino filing, is required to be made or
        obtained by Buyer in connection with the authorization,
        execution, delivery or performance of this Agreement, the other
        Transaction Documents or the transactions contemplated hereby and
        thereby.


                                    ARTICLE V

                            COVENANTS AND AGREEMENTS

             5.1. Further Actions.

                  (a)  Each of the parties hereto agrees to use all
        reasonable efforts to take, or cause to be taken, all action and
        to do, or cause to be done, all reasonable things necessary,
        proper or advisable to consummate the transactions contemplated
        by this Agreement and the Transaction Documents, including using
        all reasonable efforts to:  (i) give all notices and effect all
        necessary registrations and filings; and (ii) defend any lawsuits
                                       23PAGE
<PAGE>
        or other legal proceedings, whether judicial or administrative
        and whether brought derivatively or on behalf of third parties
        (including governmental agencies or officials), challenging this
        Agreement, the Transaction Documents, or the consummation of the
        transactions contemplated hereby and thereby.  If at any time
        after the Closing any further action is deemed necessary or
        desirable by either party to carry out the purposes of this
        Agreement or the Transaction Documents, the proper officers
        and/or directors of Buyer and the Seller shall use all reasonable
        efforts to take such action.

                  (b)  To the extent that a third party consent or waiver
        is necessary to assign to Buyer any claim, contract, agreement,
        license, lease, commitment, purchase order or sales order that is
        being transferred to Buyer pursuant to Section 1.1 hereof (a
        "Contract Requiring Consent") and such consent or waiver is not
        obtained prior to the Closing Date, Seller shall, commencing on
        the Closing Date and continuing for the term of such Contract
        Requiring Consent, use its (i) best efforts to provide to Buyer
        the benefits of such Contract Requiring Consent and (ii)
        reasonable efforts consistent with past practices, to enforce for
        the benefit of Buyer, or allow Buyer to enforce (and, solely for
        such purpose, Seller hereby constitutes and appoints Buyer as its
        true and lawful attorney-in-fact until revoked in a writing
        delivered by Seller to Buyer), with Buyer assuming Seller's
        obligations thereunder, any and all rights of Seller under such
        Contract Requiring Consent against the issuer thereof or the
        other party or parties thereto.  In addition, Seller will pay
        promptly to Buyer when received all monies received by Seller
        after September 27, 1997 under any Contract Requiring Consent to
        the extent  that Buyer would be entitled thereto pursuant to this
        Agreement.  Seller shall have no other duties or obligations with
        respect to any such Contract Requiring Consent, and the failure
        or inability to obtain any necessary consent or waiver with
        respect thereto shall in no event (i) be a breach of this
        Agreement so long as Seller has carried out its obligations under
        this Section 5.1(b) or (ii) limit, or in any way affect, Buyer's
        assumption of the liabilities that arise under such Contract
        Requiring Consent pursuant to Section 1.4(a) hereof.

             5.2. Noncompetition and Nondisclosure.

                  (a)  Noncompetition.  In furtherance of the sale of the
        Assets and the Business to Buyer hereunder by virtue of the
        transactions contemplated hereby and to more effectively protect
        the value of the Assets and the Business so sold, Seller
        covenants and agrees that, for a period ending on the fifth
        anniversary of the Closing Date (the "Term"), neither Seller nor
        any of its respective officers, directors or affiliates, will
        (a) engage, directly or indirectly, in the Business anywhere
        where Seller sold prior to the Closing or the Buyer sells, during
        the Term, products and/or services relating to the Business;
        provided, however, that Seller's Metallurgical Services Group may
        (i) continue to engage in the heat treating of parts and
                                       24PAGE
<PAGE>
        (ii) sell for its account that certain furnace having contract
        job number 4664 to Wilson Tools; (b) solicit any party who is or
        was a customer or supplier of the Holcroft Division, or who
        becomes a customer or supplier of Buyer at any time during the
        Term, for the purpose of engaging in, or assisting any person or
        entity in engaging in, any business which competes directly or
        indirectly with the Business, other than in connection with
        Seller's Metallurgical Services Group's heat treating of parts;
        or (c) solicit for employment any employee of Buyer (including
        those of Seller's employees hired by Buyer).  Notwithstanding the
        foregoing, nothing contained in this Section 5.2 shall prohibit
        Seller, or its respective officers, directors,  affiliates from
        owning not more than five percent (5%) of any class of stock
        listed on a national securities exchange or traded in the
        over-the-counter market or continuing to own any interest in any
        noncompetitive business owned by Seller or such officer, director
        or affiliate as of the Closing Date.

                  (b)  Confidentiality.  After the Closing, Seller and
        its directors shall, and Seller shall cause its respective
        officers, employees, agents and affiliates to, maintain the
        confidentiality of all information, documents and materials
        relating to the Business, the Assets or the transactions
        contemplated by this Agreement which remain in their possession,
        except to the extent disclosure of any such information is
        required by law or authorized by Buyer or reasonably occurs in
        connection with disputes over the terms of this Agreement.  In
        the event that Seller reasonably believes after consultation with
        counsel that it is required by law to disclose any confidential
        information described in this Section 5.2(b), it will (a) provide
        Buyer with prompt notice before such disclosure in order that
        Buyer may attempt to obtain a protective order or other assurance
        that confidential treatment will be accorded to confidential
        information, and (b) cooperate with Buyer in attempting to obtain
        such order or assurance.  The provisions of this Section 5.2(b)
        shall not apply to any information, documents or materials which
        are in the public domain or shall come into the public domain,
        other than by reason of default by Seller or its affiliates of
        this Agreement.

                  (c)  Rights and Remedies Upon Breach.  Upon a breach,
        or threatened breach, of any of the provisions of Sections 5.2(a)
        or 5.2(b) (the "Restrictive Covenants"), Buyer shall have the
        right and remedy to have the Restrictive Covenants specifically
        enforced by any court of competent jurisdiction, without the
        necessity of posting a bond, it being agreed that any breach or
        threatened breach of the Restrictive Covenants would cause
        irreparable injury to Buyer and that money damages would not
        provide an adequate remedy to Buyer.  Buyer shall also have any
        other rights and remedies available to Buyer under law or in
        equity.

                  (d)  Severability of Covenants.  Seller acknowledges
        and agrees that the Restrictive Covenants are reasonable and
                                       25PAGE
<PAGE>
        valid in geographical and temporal scope and in all other
        respects.  If any court determines that any of the Restrictive
        Covenants, or any part thereof, is invalid or unenforceable, the
        remainder of the Restrictive Covenants shall not thereby be
        affected and shall be given full effect, without regard to the
        invalid portions.

                  (e)  Duration and Scope of Covenant.  If any court
        determines that any of the Restrictive Covenants, or any part
        thereof, is unenforceable because of the duration or geographic
        scope of such provision, such court shall have the power to
        reduce the duration or scope of such provision to the maximum
        extent allowed, as the case may be, and, in its reduced form,
        such provision shall then be enforceable.

             5.3. Holcroft Name. Seller acknowledges and agrees that all
        of its rights in and to, and ownership of, the name "Holcroft,"
        or any variations thereof shall be transferred hereunder to
        Buyer. From and after the Closing, the Seller shall be prohibited
        from using the Holcroft name or a name similar thereto.

             5.4. Offer of Employment.  Buyer shall offer employment with
        Buyer to each employee of the Holcroft Division (collectively,
        the "Employees") after the Closing (i) at the same base salary;
        (ii) with a total benefits package which shall be comparable with
        those benefits set forth on Schedule 5.4, except for the Seller's
        employee stock purchase plan and the Seller's employee stock
        option plan; and (iii) with comparable job responsibilities and
        title as such employee had immediately prior to the Closing.
        Buyer will give such employees credit for service with the
        Holcroft Division with respect to (a) any of Buyer's benefit
        plans which have vesting or length of service requirements,
        except Buyer's equity appreciation rights program and (b) all
        severance payments, if any, made in connection with a termination
        following the Closing Date.  Buyer shall comply with all terms of
        the Union Contract, including, without limitation, seniority and
        lay-off requirements.  Buyer shall be responsible for, and hold
        Seller harmless against, any payments that arise after Closing or
        are properly accrued for on the Estimated Net Book Value
        (including, without limitation, salaries, commissions, bonuses,
        vacation pay, sick pay, severance pay, employee benefits and
        unemployment taxes) that may be due by reason of termination of
        employment of Employees at any time on or after the Closing Date.
        Seller shall be responsible for any employment-related claims
        filed by any Employees which were (i) filed prior to the Closing
        Date or (ii) filed after the Closing Date but which arose from
        facts and circumstances which existed prior to the Closing Date.

             5.5. WARN Act.  During the period commencing on the Closing
        Date and ending ninety days after the Closing Date, Buyer shall
        not take any action that independently, or in connection with any
        action taken by Seller prior to the Closing Date, could be
        construed as a "plant closing" or "mass layoff" within the
        meaning of the WARN Act or the regulations enacted thereunder.
                                       26PAGE
<PAGE>
        If Buyer takes any such action during such 90-day period, Buyer
        shall be solely responsible for providing any notice required by
        the WARN Act and for making payments, if any, which may be
        required under the WARN Act and for any other liabilities related
        to its failure to provide appropriate notice.

             5.6. Letters of Credit.  Buyer agrees that it will not take
        any action to extend the terms of the letters of credit set forth
        on Schedule 5.6 (the "Letters of Credit").


                                   ARTICLE VI

                                     CLOSING

             Section 6.1.   Closing
                         Closing.  The transactions that are the
        subject of this Agreement shall be consummated at a closing (the
        "Closing") which shall be held at the offices of Katten Muchin &
        Zavis, 525 West Monroe Street, Chicago, Illinois 60661, on
        October 10, 1997, or at some other time and place as the parties
        may mutually agree, which Closing will be effective as of 12:01
        a.m., October 10, 1997 (the "Closing Date").

             Section 6.2.   Deliveries by the Seller.  At the Closing,
        the Seller shall deliver to Buyer, against payment of the
        consideration set forth in Article II hereof:

                  (i)   Such bills of sale with respect to the Seller's
                  ownership of Assets, assignments, endorsements and
                  other documents of title and other good and sufficient
                  instruments of conveyance and transfer, as shall be
                  effective to vest Buyer with full, complete and
                  marketable right, title and interest in and to the
                  Assets, subject to the Assumed Liabilities, in form and
                  substance reasonably satisfactory to Buyer;

                  (ii)  To the extent obtained, copies of all written
                  consents necessary for the transfer of the Material
                  Contracts, in form and substance satisfactory to Buyer;

                  (iii) Certificates of good standing, dated not more
                  than ten days prior to the Closing Date, with respect
                  to Seller, issued by the office of the Secretary of
                  State of Delaware and by the Secretary of State of each
                  jurisdiction in which Seller, due to the operations of
                  the Holcroft Division, is qualified to do business as a
                  foreign corporation;

                  (iv)  The opinion of Seth H. Hoogasian, Esq, counsel
                  for the Seller in substantially the form attached
                  hereto as Exhibit 6.2(iv).  In giving its opinion,
                  counsel shall be entitled to rely on certificates of
                  the Seller, public officials or such other persons or
                  opinions of such other counsel (which other counsel
                                       27PAGE
<PAGE>
                  shall be identified by name) which such counsel shall
                  reasonably consider to be an appropriate and reliable
                  source of information which counsel's opinion is based,
                  which sources shall be specified in such opinion;

                  (v)   The Sublease;

                  (vi)  The written consent of TMO to the sublease of
                  the Property by Seller to Buyer pursuant to the terms
                  of the Sublease;

                  (vii) The Estoppel certificate in the form of Exhibit
                  6.2(vii) hereto, duly executed by the Landlord; and

                  (viii)Such other documents and instruments as Buyer
                  may reasonably require in order to effectuate the
                  transactions which are the subject of this Agreement.

             All documents and instruments delivered to Buyer shall be in
        form and substance reasonably satisfactory to Katten Muchin &
        Zavis, counsel for Buyer.

             Section 6.3.Deliveries by Buyer.  At the Closing, Buyer
        shall deliver to the Sellers:

                                       28PAGE
<PAGE>
                  (i)   The cash consideration set forth in Section 2.1
                  hereof less the Holdback Amount provided in Section
                  2.1(b);

                  (ii)  The Note in the form of Exhibit 2.1(a)(ii)
                  hereto;

                  (iii) Instruments of assumption of all Material
                  Contracts and Permits to be assumed hereunder and of
                  the Assumed Liabilities;

                  (iv)  The opinion of Katten Muchin & Zavis, counsel
                  for Buyer, in substantially the form attached hereto as
                  Exhibit 6.3(iv).  In giving its opinion, counsel shall
                  be entitled to rely on certificates of the Seller,
                  public officials or such other persons or opinions of
                  such other counsel (which other counsel shall be
                  identified by name) which such counsel shall reasonably
                  consider to be an appropriate and reliable source of
                  information which counsel's opinion is based, which
                  sources shall be specified in such opinion.;

                  (v)   Copies of resolutions of the Buyer, certified by
                  the sole member as having been duly adopted and being
                  in current force and effect, authorizing the
                  transactions contemplated by this Agreement and the
                  Transaction Documents; 

                  (vi)  The Sublease; 

                  (vii) An executed Severance Agreement between Buyer
                  and each of Douglas Bradford, Mary Anne Cesarone, Klaus
                  Doll, Robert Fox, John Lutz, Tim McMann, Frank Ragone
                  and Vera Roggen ("Severance Agreements");

                  (viii)The 90 Day Receivables Note; and

                  (ix)  Such other documents and instruments as the
                  Seller may reasonably require in order to effectuate
                  the transactions which are the subject of this
                  Agreement.

             All documents and instruments delivered to the Seller shall
        be in form and substance reasonably satisfactory to Seth H.
        Hoogasian, Esq., counsel for the Seller.

                                       29PAGE
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                                   ARTICLE VII

                             COVENANTS AFTER CLOSING

             7.1  Indemnification by Seller.  Subject to the limitations
        set forth in Section 7.5, from and after the Closing, Seller
        agrees to indemnify, defend and save Buyer and its affiliates,
        and each of their respective officers, directors, employees,
        agents, and fiduciaries (each, a "Buyer Indemnified Party"),
        forever harmless from and against any and all liabilities
        (whether contingent, fixed or unfixed, liquidated or
        unliquidated, or otherwise), obligations, deficiencies, demands,
        claims, suits, actions, or causes of action, assessments, losses,
        costs, expenses, interest, fines, penalties, actual or punitive
        damages or costs or expenses of any and all investigations,
        proceedings, judgments, remediations, settlements and compromises
        (including reasonable fees and expenses of attorneys, accountants
        and other experts) (individually and collectively, the "Losses")
        sustained or incurred by any Buyer Indemnified Party relating to,
        resulting from, arising out of or otherwise by virtue of any of
        the following (provided that Buyer shall use reasonable efforts
        to collect such Losses from its insurance policies and will
        assign any insurance claims and any proceeds therefrom to Seller
        to the extent that Seller has indemnified Buyer for any Losses to
        which such insurance claims or proceeds relate):

                  (a)  any misrepresentation or breach of a
        representation or warranty made herein by Seller, or
        non-compliance with or breach by Seller of any of the covenants
        or agreements contained in this Agreement or the Transaction
        Documents to be performed by Seller or any of its affiliates;

                  (b)  any violations of or obligations under
        Environmental and Safety Requirements relating to acts,
        omissions, circumstances or conditions existing on or prior to
        the Closing Date, including, but not limited to, all liabilities
        arising out of or in connection with any treatment, storage, or
        disposal of any Hazardous Materials, or the arranging therefor by
        Seller and any discharge or release of any Hazardous Material
        onto, at or under the Property or any other real property
        previously owned or operated by Seller and used in connection
        with the Business, whether or not such acts, omissions,
        circumstances or conditions constituted a violation of or
        obligation under Environmental and Safety Requirements as then in
        effect;

                  (c)  any liability or obligation of Seller or any
        assertion against a Buyer Indemnified Party, arising out of or
        relating, directly or indirectly, to any Excluded Liability; 

                  (d)  any claim for payment of fees and/or expenses as a
        broker or finder in connection with the origin, negotiation,
        execution or consummation of this Agreement based upon an alleged
        agreement between claimant and Seller or any of its affiliates; 
                                       30PAGE
<PAGE>
                  (e)  up to an aggregate of $85,000 of any Losses
        relating to, resulting from or arising out of any obligations of
        Buyer under the Severance Agreements; or

                  (f)  any action taken by Thermo, directly or
        indirectly, which, if taken by Seller, would result in a
        violation or breach of the representations and warranties set
        forth in Section 5.2 hereof, except for sales by Thermo
        Remediation of its soil remediation units and/or related
        technology.

             Seller agrees to promptly pay to or reimburse a Buyer
        Indemnified Party for all Losses incurred by such Buyer
        Indemnified Party.

             7.2  Indemnification by Buyer.  From and after the Closing,
        Buyer agrees to indemnify, defend and save Seller and its
        affiliates and their respective officers, directors, employees,
        agents and fiduciaries (each, a "Seller Indemnified Party")
        forever harmless from and against, and to promptly pay to a
        Seller Indemnified Party or reimburse a Seller Indemnified Party
        for, any and all Losses sustained or incurred by any Seller
        Indemnified Party relating to, resulting from, arising out of or
        otherwise by virtue of any of the following:

                  (a)  any misrepresentation or breach of a
        representation or warranty made herein by Buyer, or
        non-compliance with or breach by Buyer of any of the covenants or
        agreements contained in this Agreement or the Transaction
        Documents to be performed by Buyer;

                  (b)  any action, demand, proceeding, investigation or
        claim (whenever made) by any third party (including governmental
        agencies) against or affecting Seller which, if successful, would
        give rise to or evidence the existence of or relate to a
        misrepresentation or breach of any of the representations,
        warranties or covenants of Buyer in this Agreement or any
        Transaction Document;

                  (c)  any claim arising out of Buyer's failure to pay,
        satisfy or discharge the Assumed Liabilities, including, without
        limitation, liabilities under the Union Contract;

                  (d)  any claim for payment and/or expenses as a broker
        or finder in connection with the origin, negotiation, execution
        or consummation of this Agreement based upon an alleged agreement
        between claimant and Buyer or any of its affiliates;

                  (e)  any claim arising out of Buyer's failure to pay
        any amounts owed to Seller pursuant to Sections 1.2(e), 2.1 or
        2.2 hereof; or

                  (f)  any claim for a Loss incurred by Seller relating
                                       31PAGE
<PAGE>
        to the Letters of Credit.

             Buyer agrees to promptly pay to or reimburse a Seller
        Indemnified Party for all Losses incurred by such Seller
        Indemnified Party.

             7.3  Indemnification Procedure for Third Party Claims.  In
        the event that subsequent to the Closing any person or entity
        entitled to indemnification under this Agreement (an "Indemnified
        Party") asserts a claim for indemnification or receives notice of
        the assertion of any claim or of the commencement of any action
        or proceeding by any person or entity who is not a party to this
        Agreement or an affiliate of a party to this Agreement
        (including, but not limited to any domestic or foreign court or
        governmental authority, federal, state or local) (a "Third Party
        Claim") against such Indemnified Party, against which a party to
        this Agreement is required to provide indemnification under this
        Agreement (an "Indemnifying Party"), the Indemnified Party shall
        give written notice together with a statement of any available
        information regarding such claim to the Indemnifying Party within
        thirty (30) days after learning of such claim (or within such
        shorter time as may be necessary to give the Indemnifying Party a
        reasonable opportunity to respond to such claim).  The
        Indemnifying Party shall have the right, upon written notice to
        the Indemnified Party (the "Defense Notice") within thirty days
        (30) after receipt from the Indemnified Party of notice of such
        claim, which notice by the Indemnifying Party shall specify the
        counsel it will appoint to defend such claim ("Defense Counsel"),
        to conduct at its expense the defense against such claim in its
        own name, or if necessary in the name of the Indemnified Party;
        provided, however, that the Indemnified Party shall have the
        right to approve the Defense Counsel, which approval shall not be
        unreasonably withheld or delayed, and in the event the
        Indemnifying Party and the Indemnified Party cannot agree upon
        such counsel within ten (10) days after the Defense Notice is
        provided, then the Indemnifying Party shall propose an alternate
        Defense Counsel, which shall be subject again to the Indemnified
        Party's approval pursuant to this Section 7.3.

                  (a)  In the event that the Indemnifying Party shall
        fail to give the Defense Notice within the time period described
        above, it shall be deemed to have elected not to conduct the
        defense of the subject claim, and in such event the Indemnified
        Party shall have the right to conduct such defense in good faith
        and to compromise and settle the claim without prior consent of
        the Indemnifying Party and such Indemnifying Party will be liable
        for all reasonable costs, expenses, settlement amounts or other
        Losses paid or incurred in connection therewith.

                  (b)  In the event that the Indemnifying Party does
        deliver a Defense Notice within the time period described above
        and thereby elects to conduct the defense of the subject claim,
        the Indemnified Party will cooperate with and make available to
        the Indemnifying Party such assistance and materials as it may
                                       32PAGE
<PAGE>
        reasonably request, all at the expense of the Indemnifying Party,
        and the Indemnified Party shall have the right at its expense to
        participate in the defense assisted by counsel of its own
        choosing, provided that the Indemnified Party shall have the
        right to compromise and settle the claim only with the prior
        written consent of the Indemnifying Party.

                  (c)  Without the prior written consent of the
        Indemnified Party, the Indemnifying Party will not enter into any
        settlement of any Third Party Claim or cease to defend against
        such claim, if pursuant to or as a result of such settlement or
        cessation, (i) injunctive or other equitable relief would be
        imposed against the Indemnified Party, or (ii) such settlement or
        cessation would lead to liability or create any financial or
        other obligation on the part of the Indemnified Party for which
        the Indemnified Party is not entitled to indemnification
        hereunder.

                  (d)  Notwithstanding paragraph (b) above, the
        Indemnifying Party shall not be entitled to control, and the
        Indemnified Party shall be entitled to have sole control over,
        the defense or settlement of any claim to the extent that claim
        seeks an order, injunction or other equitable relief against the
        Indemnified Party which, if successful, could materially
        interfere with the business, operations, assets, condition
        (financial or otherwise) or prospects of the Indemnified Party
        (and the reasonable cost of such defense shall constitute an
        amount for which the Indemnified Party is entitled to
        indemnification hereunder).  If the Indemnifying Party decides to
        accept and agree to an offer to settle a Third Party claim, which
        Third Party Claim the Indemnifying Party is permitted to settle
        under this Section 7.3, the Indemnifying Party will give written
        notice to the Indemnified Party to that effect within thirty (30)
        calendar days after its receipt of such notice.  If the
        Indemnified Party fails to consent to such offer within 30
        calendar days after its receipt of such notice, the Indemnified
        Party may continue to contest or defend such Third Party Claim
        and, in such event, the maximum liability of the Indemnifying
        Party as to such Third Party Claim will not exceed the amount of
        such settlement offer, plus reasonable costs and expenses paid or
        incurred by the Indemnified Party through the end of such 30-day
        period.

                  (e)  Any final judgment entered or settlement agreed
        upon in the manner provided herein shall be binding upon the
        Indemnifying Party, and shall conclusively be deemed to be an
        obligation with respect to which the Indemnified Party is
        entitled to prompt indemnification hereunder.


             7.4  Failure to Give Timely Notice.  A failure by an
        Indemnified Party to give timely, complete or accurate notice as
        provided in Section 7.3 will not affect the rights or obligations
        of any party hereunder except and only to the extent that, as a
                                       33PAGE
<PAGE>
        result of such failure, any party entitled to receive such notice
        was deprived of its right to recover any payment under its
        applicable insurance coverage or was otherwise directly and
        materially damaged as a result of such failure to give timely
        notice.

             7.5  Certain Limitations.

                  (a)  Notwithstanding anything to the contrary set forth
        in this Agreement (but subject to the terms of this Section 7.5),
        Seller shall not be liable hereunder to Buyer as a result of any
        misrepresentation of any representation or warranty contained in
        this Agreement, unless and until the Losses incurred by all Buyer
        Indemnified Parties, in the aggregate, as a result of such
        misrepresentations under this Agreement shall exceed, in the
        aggregate, $100,000 (the "Basket Threshold"); provided, however,
        that once the Basket Threshold is reached, Seller shall fully
        indemnify Buyer (or a Buyer Indemnified Party) for all Losses,
        liabilities and damages incurred by Buyer (or a Buyer Indemnified
        Party), including the $100,000 applied to the Basket Threshold.
        The aggregate amount required to be paid by Sellers under Section
        7.1(a) and 7.1(f) shall not exceed the Purchase Price (the
        "Cap").  The parties agree that the (i) Basket Threshold and the
        Cap shall not apply to any breach of the representations and
        warranties contained in Sections 3.7(a), 3.13, 3.24 and 3.27; and
        (ii) Basket Threshold shall not apply to Section 7.1(e).

                  (b)  All of the representations and warranties set
        forth in this Agreement or in any of the other Transaction
        Documents shall survive the execution and delivery of this
        Agreement and the consummation of the transactions contemplated
        hereby, regardless of any investigation, inquiry or examination
        made for or on behalf of or any knowledge of Buyer or Sellers, or
        any of their respective affiliates, officers, directors,
        employees, agents, or representatives or the acceptance by any of
        them of any certificate or opinion, for a period of two years
        after the Closing and shall expire and terminate upon the
        expiration of such two year period, except the warranties and
        representations contained in (i) Section 3.7(a) concerning title
        of the Assets shall survive indefinitely, (ii) Section 3.24
        regarding Taxes shall survive until the expiration of all
        applicable statutes of limitations (including extensions of said
        statutes) and (iii) Section 3.27 regarding environmental
        liabilities shall survive indefinitely.  Seller shall only be
        liable for claims of which it receives notice of from Buyer
        within the applicable survival period.  In the event Buyer incurs
        a Loss and a claim is filed, prior to the end of such two year
        period, the termination date shall be extended until such claim
        is fully resolved and Buyer is appropriately indemnified for such
        Loss.  Unless a specified period is set forth in this Agreement
        or in a Transaction Document (in which event such specified
        period will control), all covenants contained in this Agreement
        and in any Transaction Document will survive the Closing and
        remain in effect indefinitely.
                                       34PAGE
<PAGE>
                  (c)  Seller's liability for any claims made with
        respect to a breach or misrepresentation of the representations
        and warranties contained in Section 3.7(b) will be subject to the
        limitations set forth in Section 2.2(e), as well as the other
        limitations of this Section 7.5.


                                  ARTICLE VIII

                                  MISCELLANEOUS

             8.1  Notices, Consents, etc.  Any notices, consents or other
        communication required to be sent or given hereunder by any of
        the parties shall in every case be in writing and shall be deemed
        properly served if (a) delivered personally, (b) sent by
        registered or certified mail, in all such cases with first class
        postage prepaid, return receipt requested, (c) delivered by a
        recognized overnight courier service, or (d) sent by facsimile
        transmission to the parties at the addresses as set forth below
        or at such other addresses as may be furnished in writing.

                  (a)  If to Seller:

                            Thermo TerraTech Inc.
                            81 Wyman Street
                            Waltham, Massachusetts 02254-9046
                            Fax: (781) 622-1242
                            Attention:     John P. Appleton, Ph.D.

                       with a copy to:

                            Thermo Electron Corporation
                            81 Wyman Street
                            Waltham, Massachusetts 02254-9046
                            Fax: (781) 622-1283
                            Attention:     General Counsel

                  (b)  If to Buyer:

                            Holcroft L.L.C.
                            c/o Madison Capital Partners
                            150 North Wacker Drive, Suite 2360
                            Chicago, Illinois 60606
                            Fax: (312) 236-4367
                            Attention: Larry Gies
                                       Scott Murray

                       with a copy to:

                            Katten Muchin & Zavis
                            525 West Monroe Street, Suite 1600
                            Chicago, Illinois  60661-3693
                            Fax: (312) 902-1061
                                       35PAGE
<PAGE>
                            Attention: David R. Shevitz, Esq.
                                       Karen A. Ruzic, Esq.


        Date of service of such notice shall be (w) the date such notice
        is personally delivered, (x) three (3) days after the date of
        mailing if sent by certified or registered mail, (y) one (1) day
        after date of delivery to the overnight courier if sent by
        overnight courier or (z) the next succeeding business day after
        transmission by facsimile.

             8.2  Public Announcements.  Except as required by law, no
        party shall make any public announcement or filing with respect
        to the transactions provided for herein without the prior consent
        of the other parties hereto, such consent not to be unreasonably
        withheld or delayed.  To the extent reasonably feasible, any
        press release or other announcement or notice regarding the
        transactions contemplated by this Agreement shall be made jointly
        by the parties.

             8.3  Severability.  The unenforceability or invalidity of
        any provision of this Agreement shall not affect the
        enforceability or validity of any other provision.

             8.4  Amendment and Waiver.  This Agreement may be amended,
        or any provision of this Agreement may be waived, provided that
        any such amendment or waiver will be binding on Buyer only if
        such amendment or waiver is set forth in a writing executed by
        Buyer, and provided that any such amendment or waiver will be
        binding upon Seller only if such amendment or waiver is set forth
        in a writing executed by Seller.  The waiver by any party hereto
        of a breach of any provision of this Agreement shall not operate
        or be construed as a waiver of any other breach.

             8.5  Documents.  Each party will execute all documents and
        take such other actions as any other party may reasonably request
        in order to consummate the transactions provided for herein and
        to accomplish the purposes of this Agreement.

             8.6  Counterparts.  This Agreement may be executed
        simultaneously in two or more counterparts, each of which shall
        be deemed an original but all of which together shall constitute
        one and the same agreement and shall become effective when one or
        more counterparts have been signed by each of the parties hereto
        and delivered to the other.


             8.7  Expenses.  Except as otherwise specifically provided
        herein, each of the parties shall pay all costs and expenses
        incurred or to be incurred by it in negotiating and preparing
        this Agreement and in closing and carrying out the transactions
        contemplated by this Agreement.

             8.8  Construction.  This Agreement shall be construed and
                                       36PAGE
<PAGE>
        enforced in accordance with, and all questions concerning the
        construction, validity, interpretation and performance of this
        Agreement shall be governed by, the laws of the State of Delaware
        without giving effect to provisions thereof regarding conflict of
        laws.

             8.9  Headings.  The subject headings of Articles and
        Sections of this Agreement are included for purposes of
        convenience only and shall not affect the construction or
        interpretation of any of its provisions.

             8.10 Assignment.  This Agreement will be binding upon and
        inure to the benefit of the parties hereto and their respective
        successors and permitted assigns, but will not be assignable or
        delegable by any party without the prior written consent of the
        other party; provided, however, that nothing in this Agreement is
        intended to limit Buyer's ability to assign its rights or
        delegate its responsibilities, liabilities and obligations under
        this Agreement to any of its affiliates or to lenders as security
        for borrowings, at any time whether prior to or following the
        Closing Date without consent.  Notwithstanding anything to the
        contrary contained herein, Seller may not assign or delegate any
        of its responsibilities, liabilities or obligations under this
        Agreement, without the prior written consent of Buyer.

             8.11 Definitions.  For purposes of this Agreement, the
        following terms have the meaning set forth below:

                  "Code" means the Internal Revenue Code of 1986, as
        amended.

                  "Chrysler Lease" means the sublease dated October 1,
        1995 between the Holcroft Division and Chrysler Corporation.

                  "ERISA" means the Employment Retirement Income Security
        Act of 1974, as amended.

                  "GAAP" means generally accepted accounting principles
        set forth in the opinions and pronouncements of the Accounting
        Principles Board of the American Institute of Certified Public
        Accountants and statements and pronouncements of the Financial
        Accounting Standards Board (or any successor authority) that are
        applicable as the date of determination.

                  "Tax" means any federal, state, local or foreign
        income, gross receipts, franchise, estimated, alternative
        minimum, add-on minimum, sales, use, transfer, registration,
        value added, excise, natural resources, severance, stamp,
        occupation, premium, windfall profit, environmental, customs,
        duties, real property, personal property, capital stock, social
        security, unemployment, disability, payroll, license, employee or
        other withholding, or other tax, of any kind whatsoever,
        including any interest, penalties or additions to tax or
        additional amounts in respect of the foregoing; the foregoing
                                       37PAGE
<PAGE>
        shall include any transferee or secondary liability for a Tax and
        any liability assumed by agreement or arising as a result of
        being (or ceasing to be) a member of any Affiliated Group, as
        defined in Section 1504 of the Code, (or being included
        (or required to be included) in any Tax Return relating thereto).

                  "Tax Returns" means returns, declarations, reports,
        claims for refund, information returns or other documents
        (including any related or supporting Schedules, statements or
        information) filed or required to be filed in connection with the
        determination, assessment or collection of any Taxes of any party
        or the administration of any laws, regulations or administrative
        requirements relating to any Taxes.

             8.12 Entire Agreement.  This Agreement, the Preamble and all
        the Schedules and Exhibits attached to this Agreement (all of
        which shall be deemed incorporated in the Agreement and made a
        part hereof) and the other Transaction Documents set forth the
        entire understanding of the parties, and supersedes and preempts
        all prior oral or written understandings and agreements, with
        respect to the subject matter hereof, except for the
        confidentiality provisions contained in that certain letter
        agreement between Buyer and Seller dated July 3, 1997, and shall
        not be modified or affected by any offer, proposal, statement or
        representation, oral or written, made by or for any party in
        connection with the negotiation of the terms hereof, and may be
        modified only by instruments signed by all of the parties hereto.

             8.13 Third Parties.  Nothing herein expressed or implied is
        intended or shall be construed to confer upon or give to any
        person or entity, other than the parties to this Agreement and
        their respective permitted successors and assigns, any rights or
        remedies under or by reason of this Agreement.

             8.14 Interpretative Matters.  Unless the context otherwise
        requires, (a) all references to Articles, Sections or Schedules
        are to Articles, Sections or Schedules in this Agreement,
        (b) each accounting term not otherwise defined in this Agreement
        has the meaning assigned to it in accordance with GAAP, and (c)
        words in the singular or plural include the singular and plural,
        pronouns stated in either the masculine, the feminine or neuter
        gender shall include the masculine, feminine and neuter and (d)
        the term "including" shall mean by way of example and not by way
        of limitation.

             8.15 Knowledge.  Where any representation or warranty of
        Sellers contained in this Agreement is expressly qualified by
        reference "to the knowledge of Seller," or "to the best knowledge
        of Seller" or similar phrases it refers to the knowledge of
        Seller as to the existence or absence of facts that are the
        subject of such representations and warranties after consultation
        with and due inquiry of all officers, directors and senior
        management of Seller and management of the Holcroft Division who
        have executed Severance Agreements, it being understood that
                                       38PAGE
<PAGE>
        Seller has not made any other independent investigation or
        consulted with any outside third parties, other than Seller's
        accountants, legal counsel and environmental consultants.

             8.16 Brokers and Transaction Payments.  Except for Michigan
        Eagle Corp. who will receive a fee upon consummation of the
        transactions contemplated hereby, which Buyer shall be
        responsible for paying, each party warrants to the other that it
        has not employed or used the services of or incurred any
        liability to any broker, finder or other third party in
        connection with the transaction contemplated by this Agreement.

             8.17 No Strict Construction.  The language used in this
        Agreement will be deemed to be the language chosen by the parties
        hereto to express their mutual intent, and no rule of strict
        construction will be applied against any party hereto by virtue
        of such party being deemed to have drafted this Agreement.

             8.18 Counterparts.  This Agreement may be executed in two or
        more counterparts, each of which shall be deemed an original but
        all of which together shall constitute one and the same agreement
        and shall become effective when one or more counterparts have
        been signed by each of the parties hereto.

                                       39PAGE
<PAGE>
             IN WITNESS WHEREOF, the parties have executed this
        Agreement as of the date first above written.

                                      SELLER:

                                      THERMO TERRATECH INC.


                                      By:  /s/ John P. Appleton          
                                      Its: Chief Executive Officer



                                      BUYER:

                                      HOLCROFT L.L.C.

                                      By:  Holcroft Technologies L.P.
                                      Its: Manager

                                      By:  Holcroft Management, Inc.
                                           Its: General Partner


                                      By:  /s/ Larry W. Gies, Jr.        
                                      Its: Vice President


                                                              EXHIBIT 2.2

                       This Note and the indebtedness evidenced hereby
                  are subordinate in the manner and extent set forth in
                  that certain Subordination Agreement dated as of
                  October 10, 1997 among Thermo TerraTech Inc., Comerica
                  Bank and Holcroft L.L.C. to the indebtedness owed by
                  Holcroft L.L.C. to Comerica Bank, and each holder of
                  this Note, by its acceptance hereof, shall be bound by
                  the provisions of the Subordination Agreement.


                             SECURED PROMISSORY NOTE



        $2,218,000.00                                    October 10, 1997


             This Secured Promissory Note (hereinafter "this Note") is
        made as of the date stated hereinabove by HOLCROFT L.L.C., a
        Delaware limited liability company ("Borrower"), with a mailing
        address at 12068 Market Street, Livonia, Michigan 48150, to the
        order of THERMO TERRATECH INC., a Delaware corporation
        ("Lender"), with an office at 81 Wyman Street, Waltham,
        Massachusetts 02254-9046.


                                        I

                                     PAYMENT

             For Value Received, Borrower hereby irrevocably and
        unconditionally promises to pay to the order of Lender, at
        Lender's office at the address stated hereinabove or such other
        place as Lender may from time to time designate in writing to
        Borrower, the principal amount of TWO MILLION TWO HUNDRED
        EIGHTEEN THOUSAND DOLLARS AND NO/100THS ($2,218,000.00) (the
        "Loan") or so much thereof as may now or hereafter be disbursed
        by Lender to or for the benefit of Borrower, together with
        interest as provided hereinbelow, all in lawful money of the
        United States of America, as follows:

             1.1  Interest in Installments.  Interest only on the unpaid
        principal balance of the Loan from time to time, shall accrue at
        an annual interest rate (the "Interest Rate") equal to nine and
        one-quarter percent (9.25%), from and including the date hereof
        until October 10, 2002 (the "Maturity Date").  Interest shall be
        due and payable quarterly in arrears commencing on January 1,
        1998.  Interest hereunder shall be calculated on the basis of the
        actual number of days elapsed during the period for which
        interest is being charged hereunder, predicated on a year
        consisting of three hundred and sixty-five (365) days.
PAGE
<PAGE>
             1.2  Payments.  The principal balance of the Loan shall be
        payable in 4 consecutive annual installments of $443,600 on each
        annual anniversary of the date hereof commencing with the year
        beginning October 10, 1998.  The remaining principal balance, as
        well as all accrued and unpaid interest, shall be due and payable
        on the Maturity Date.

             1.3  Method of Payment.  On the date a payment is due under
        Paragraphs 1.1 or 1.2 above, Borrower shall pay the amount of
        such payment to Lender in immediately available funds at the
        address of Lender specified above. 

             1.4  Application of Payments Prior to Default.  All monies
        paid by Borrower to Lender shall be applied in the following
        order of priority:  (a) first, toward payment of interest which
        has accrued on the outstanding principal balance of the Loan and
        which is due and payable; and (b) last, toward payment of the
        outstanding principal balance of the Loan.

             1.5  Prepayments.  This Note may be prepaid, in whole or in
        part, at any time, without premium or penalty.  Any payment made
        under this paragraph shall be applied as set forth in Paragraph
        1.4.

             1.6  Certain Waivers.  The Borrower hereby waives
        presentment, demand, notice of prepayment, protest and all other
        demands and notices in connection with the delivery, acceptance,
        performance, default or enforcement of this Note.  The Borrower
        hereby assents to any extension of time for payment of any
        indebtedness evidenced hereby granted or permitted by the Lender.
        The Borrower hereby waives the right to a jury trial and waives
        the right to exercise any counterclaim or setoff of any kind
        whatsoever.


                                       II

                        SECURITY, DEFAULTS, AND REMEDIES

             2.1  Security for Payment.  Payment of this Note is secured
        by a Security Agreement dated of even date herewith between
        Borrower and Lender (the "Security Agreement") (this Note, the
        Security Agreement and all other documents and instruments
        executed in connection with the Note or the Security Agreement
        hereinafter are referred to as the "Loan Documents").

             2.2  Events of Default.  Any event of default shall exist
        upon the occurrence of any of the following events (an "Event of
        Default"):

                  (a)  The failure of the Borrower to pay any sum due and
             payable hereunder, including without limitation, interest or

                                        2PAGE
<PAGE>
             principal or both and either as an installment or on the
             Maturity Date;

                  (b)  The failure of the Borrower to observe or perform
             any of its agreements, obligations, warranties or
             representations in that certain Asset Purchase Agreement of
             even date herewith between the Borrower and the Lender (the
             "Purchase Agreement") or in any agreement with the Lender or
             with any other person or organization for borrowed money,
             including all obligations to Comerica Bank;

                  (c)  Any warranty, representation, or statement made or
             furnished to the Lender by or on behalf of the Borrower in
             the Purchase Agreement proves to have been false in any
             material respect when made;

                  (d)  The liquidation, termination of existence,
             dissolution, insolvency or business failure of the Borrower,
             or the appointment of a receiver or custodian for the
             Borrower or any part of its property if such appointment is
             not terminated or dismissed within 30 days;

                  (e)  The sale by the Borrower of all or substantially
             all of its assets;

                  (f)  The merger or consolidation of the Borrower with
             or into any other corporation in a transaction in which the
             Borrower is not the surviving entity;

                  (g)  The institution against the Borrower of any
             proceedings under the United States Bankruptcy Code or any
             other federal or state bankruptcy, reorganization,
             receivership, insolvency or other similar law affecting the
             rights of creditors, generally, which proceeding is not
             dismissed within 30 days after filing of such proceeding;

                  (h)  The institution by the Borrower of any proceedings
             under the United States Bankruptcy Code or any other federal
             or state bankruptcy, reorganization, receivership,
             insolvency or other similar law affecting the rights of
             creditors generally or the making by the Borrower of a
             composition or an assignment or trust mortgage for the
             benefit of creditors; or

                  (i)  The suspension of the transaction of the usual
             business of the Borrower.

             2.3  Acceleration of Maturity.  At any time during the
        existence of any Event of Default (other than Events of Default
        under Paragraphs 2.2(b) or (c) above), and at the option of
        Lender, the entire unpaid principal balance under this Note,
        together with interest accrued thereon and all other sums due

                                        3PAGE
<PAGE>
        from Borrower hereunder or under any of the other Loan Documents,
        shall become immediately due and payable without notice or
        demand.  If an Event of Default occurs under Paragraphs 2.2(b) or
        (c) above, Lender shall provide Borrower notice of such Event of
        Default and Borrower shall have ten (10) days after receipt of
        such notice to cure such Event of Default.  If such Event of
        Default is not cured, the entire unpaid principal balance under
        this Note, together with interest accrued thereon and all other
        sums due from Borrower hereunder or under any of the other Loan
        Documents shall become immediately due and payable.  After the
        occurrence and during the continuance of an Event of Default
        which has not been cured, the principal balance together with
        accrued and unpaid interest of this Note shall bear interest at
        the Interest Rate plus two and one half percent (2.50%).  After
        the occurrence and during the continuance of an Event of Default,
        Borrower shall be liable for all costs of collection, including
        reasonable attorneys' fees.

             2.4  Nature of Remedies.  Lender's remedies under this Note
        and all of the other Loan Documents shall be cumulative and
        concurrent and may be pursued singly, successively, or together
        against Borrower and any other "Obligors" (as that term is
        hereinafter defined), the Collateral (as defined in the Security
        Agreement), and any other security described in the Loan
        Documents or any portion or combination of such security, and
        Lender may resort to every other right or remedy available at law
        or in equity without first exhausting the rights and remedies
        contained herein, all in Lender's sole discretion.  Failure of
        Lender, for any period of time or on more than one occasion, to
        exercise its option to accelerate the Maturity Date shall not
        constitute a waiver of the right to exercise the same at any time
        during the continued existence of the Event of Default or in the
        event of any subsequent Event of Default.  Lender shall not by
        any other omission or act be deemed to waive any of its rights or
        remedies hereunder unless such waiver is in writing and signed by
        Lender, and then only to the extent specifically set forth
        therein.  A waiver in connection with one event shall not be
        construed as continuing or as a bar to or as a waiver of any
        right or remedy in connection with a subsequent event.


                                       III

                                  OTHER MATTERS

             3.1  Notices.  Any notices, consents or other communications
        required to be sent or given hereunder shall in every case be in
        writing and shall be deemed properly served if (a) delivered
        personally, (b) sent by registered or certified mail, in all such
        cases with first class postage prepaid, return receipt requested,
        (c) delivered by a recognized overnight courier service or (d)
        sent by facsimile transmission to Borrower at (313) 591-6443, or

                                        4PAGE
<PAGE>
        to Lender at (781) 622-1283.  The date of service of such notice
        shall be (a) the date such notice is personally delivered, (b)
        three days after the day of mailing if sent by certified or
        registered mail, (c) one day after date of delivery to the
        overnight courier if sent by overnight courier or (d) when
        receipt of such transmission is acknowledged, if sent by
        facsimile transmission.  All such notices and other
        communications to a party shall be addressed to such party at the
        address set forth on the initial page hereof or to such other
        address as such party may designate for itself in a notice to the
        other party given in accordance with this section.

             3.2  Governing Law.  THIS NOTE AND THE TRANSACTIONS
        EVIDENCED HEREBY SHALL BE GOVERNED BY AND CONSTRUED UNDER THE
        INTERNAL LAWS OF THE STATE OF MICHIGAN, WITHOUT REGARD TO
        PRINCIPLES OF CONFLICTS OF LAWS, AS THE SAME MAY FROM TIME TO
        TIME BE IN EFFECT, INCLUDING, WITHOUT LIMITATION, THE UNIFORM
        COMMERCIAL CODE AS IN EFFECT IN SUCH STATE.

             3.3  Interpretation.  The headings of sections and
        paragraphs in this Note are for convenience only and shall not be
        construed to limit or define the content, scope, or intent of the
        provisions hereof.  As used in this Note, the singular shall
        include the plural, and masculine, feminine, and neuter pronouns
        shall be fully interchangeable, where the context so requires.
        If any provision of this Note, or any paragraph, sentence,
        clause, phrase, or word, or the application thereof, in any
        circumstances, is adjudicated to be invalid, the validity of the
        remainder of this Note shall be construed as if such invalid part
        were never included herein.  Time is of the essence of this Note.

             3.4  Subsequent Holders.  Upon any endorsement, assignment,
        or other transfer of this Note by Lender or by operation of law,
        the term "Lender," as used herein, shall mean the endorsee,
        assignee, or other transferee or successor to Lender then
        becoming the holder of this Note.

             3.5  Subsequent Obligors.  This Note and all provisions
        hereof shall be binding on all persons claiming under or through
        Borrower.  The terms "Borrower" and "Obligors," as used herein,
        shall include the respective successors, assigns, legal and
        personal representatives, executors, administrators, devisees,
        legatees, and heirs of Borrower and any other Obligors.

                            [signature page follows]

                                        5PAGE
<PAGE>
             In Witness Whereof, Borrower has caused this Note to be
        executed as of the date first written hereinabove.



                                      HOLCROFT L.L.C.

                                      By:  Holcroft Technologies L.P.,
                                           Sole Member of Holcroft L.L.C.

                                      By:  Holcroft Management, Inc.,
                                           General Partner of Holcroft
                                           Technologies L.P.

                                      By:   /s/ Scott M. Murray         
                                      Name: Scott M. Murray
                                      Title:President


                                                              Exhibit 2.3


                             SECURED RECEIVABLE NOTE




        $663,117.82                                      October 10, 1997


             This Secured Receivable Note (hereinafter "this Note") is
        made as of the date stated hereinabove by HOLCROFT L.L.C., a
        Delaware limited liability company ("Borrower"), with a mailing
        address at 12068 Market Street, Livonia, Michigan 48150, to the
        order of THERMO TERRATECH INC., a Delaware corporation
        ("Lender"), with an office at 81 Wyman Street, Waltham,
        Massachusetts 02254-9046.


                                        I

                                     PAYMENT

             For Value Received, Borrower hereby irrevocably and
        unconditionally promises to pay to the order of Lender, at
        Lender's office at the address stated hereinabove or such other
        place as Lender may from time to time designate in writing to
        Borrower, the principal amount of SIX HUNDRED SIXTY THREE
        THOUSAND ONE HUNDRED SEVENTEEN AND 82/100THS ($663,117.82) (the
        "Loan") or so much thereof as may now or hereafter be disbursed
        by Lender to or for the benefit of Borrower, together with
        interest as provided hereinbelow, all in lawful money of the
        United States of America, as follows:

             1.1  Interest in Installments.  Interest only on the unpaid
        principal balance of the Loan from time to time, shall accrue at
        an annual interest rate (the "Interest Rate") equal to (a) zero
        percent (0.00%), for the period from and including the date
        hereof until November 10, 1997 and (b) ten percent (10.00%),
        commencing on November 11, 1997 until August 10, 1998 (the
        "Maturity Date").  Interest shall be due and payable monthly in
        arrears commencing on December 10, 1997.  Interest hereunder
        shall be calculated on the basis of the actual number of days
        elapsed during the period for which interest is being charged
        hereunder, predicated on a year consisting of three hundred and
        sixty-five (365) days.

             1.2  Payments.  The remaining principal balance, as well as
        all accrued and unpaid interest, shall be due and payable on the
        Maturity Date.
PAGE
<PAGE>
             1.3  Method of Payment.  On the date a payment is due under
        Paragraphs 1.1 or 1.2 above, Borrower shall pay the amount of
        such payment to Lender in immediately available funds at the
        address of Lender specified above. 

             1.4  Application of Payments Prior to Default.  All monies
        paid by Borrower to Lender shall be applied in the following
        order of priority:  (a) first, toward payment of interest which
        has accrued on the outstanding principal balance of the Loan and
        which is due and payable; and (b) last, toward payment of the
        outstanding principal balance of the Loan.

             1.5  Prepayments.  This Note may be prepaid, in whole or in
        part, at any time, without premium or penalty.  Any payment made
        under this paragraph shall be applied as set forth in Paragraph
        1.4.  Concurrently with the payment of interest required under
        Paragraph 1.1 above, Borrower shall make mandatory prepayments to
        Lender in the amount of ninety percent (90%) times the amount
        actually collected by Borrower during the calendar month
        immediately preceding the month during which such payment is made
        (excluding the amount collected pursuant to the following
        sentence) on account of those receivables listed on Exhibit A
        attached hereto.  In addition, Borrower shall make a mandatory
        prepayment on November 10, 1997 in the amount of one hundred
        percent (100%) times the amount actually collected by Borrower
        during the period from October 10, 1997 to November 10, 1997 on
        account of those receivables listed on Exhibit A attached hereto.

             1.6  Certain Waivers.  The Borrower hereby waives
        presentment, demand, notice of prepayment, protest and all other
        demands and notices in connection with the delivery, acceptance,
        performance, default or enforcement of this Note.  The Borrower
        hereby assents to any extension of time for payment of any
        indebtedness evidenced hereby granted or permitted by the Lender.
        The Borrower hereby waives the right to a jury trial and waives
        the right to exercise any counterclaim or setoff of any kind
        whatsoever.


                                       II

                        SECURITY, DEFAULTS, AND REMEDIES

             2.1  Security for Payment.  Payment of this Note is secured
        by a Receivables Security Agreement dated of even date herewith
        between Borrower and Lender (the "Security Agreement") (this
        Note, the Security Agreement and all other documents and
        instruments executed in connection with the Note or the Security
        Agreement hereinafter are referred to as the "Loan Documents").

             2.2  Events of Default.  Any  event of default shall exist
        upon the occurrence of any of the following events (an "Event of
        Default"):

                                        2PAGE
<PAGE>
                  (a)  The failure of the Borrower to pay any sum due and
             payable hereunder, including without limitation, interest or
             principal or both and either as an installment or on the
             Maturity Date;

                  (b)  The failure of the Borrower to observe or perform
             any of its agreements, obligations, warranties or
             representations in that certain Asset Purchase Agreement of
             even date herewith between the Borrower and the Lender (the
             "Purchase Agreement") or in any agreement with the Lender or
             with any other person or organization for borrowed money,
             including all obligations to Comerica Bank;

                  (c)  Any warranty, representation, or statement made or
             furnished to the Lender by  or on behalf of the Borrower in
             the Purchase Agreement proves to have been false in any
             material respect when made;

                  (d)  The liquidation, termination of existence,
             dissolution, insolvency or business failure of the Borrower,
             or the appointment of a receiver or custodian for the
             Borrower or any part of its property if such appointment is
             not terminated or dismissed within 30 days;

                  (e)  The sale by the Borrower of all or substantially
             all of its assets;

                  (f)  The merger or consolidation of the Borrower with
             or into any other corporation in a transaction in which the
             Borrower is not the surviving entity;

                  (g)  The institution against the Borrower of any
             proceedings under the United States Bankruptcy Code or any
             other federal or state bankruptcy, reorganization,
             receivership, insolvency or other similar law affecting the
             rights of creditors, generally, which proceeding is not
             dismissed within 30 days after filing of such proceeding;

                  (h)  The institution by the Borrower of any proceedings
             under the United States Bankruptcy Code or any other federal
             or state bankruptcy, reorganization, receivership,
             insolvency or other similar law affecting the rights of
             creditors generally or the making by the Borrower of a
             composition or an assignment or trust mortgage for the
             benefit of creditors; or

                  (i)  The suspension of the transaction of the usual
             business of the Borrower.

             2.3  Acceleration of Maturity.  At any time during the
        existence of any Event of Default (other than Events of Default
        under Paragraphs 2.2(b) or (c) above), and at the option of
        Lender, the entire unpaid principal balance under this Note,
        together with interest accrued thereon and all other sums due
                                        3PAGE
<PAGE>
        from Borrower hereunder or under any of the other Loan Documents,
        shall become immediately due and payable without notice or
        demand.  If an Event of Default occurs under Paragraphs 2.2(b) or
        (c) above, Lender shall provide Borrower notice of such Event of
        Default and Borrower shall have ten (10) days after receipt of
        such notice to cure such Event of Default.  If such Event of
        Default is not cured the entire unpaid principal balance under
        this Note, together with interest accrued thereon and all other
        sums due from Borrower hereunder or under any of the other Loan
        Documents shall become immediately due and payable.  After the
        occurrence and during the continuance of an Event of Default
        which has not been cured, the principal balance together with
        accrued and unpaid interest of this Note shall bear interest at
        the Interest Rate plus two and one half percent (2.50%).  After
        the occurrence and during the continuance of an Event of Default,
        Borrower shall be liable for all costs of collection, including
        reasonable attorneys' fees.

             2.4  Nature of Remedies.  Lender's remedies under this Note
        and all of the other Loan Documents shall be cumulative and
        concurrent and may be pursued singly, successively, or together
        against Borrower and any other "Obligors" (as that term is
        hereinafter defined), the Collateral (as defined in the Security
        Agreement), and any other security described in the Loan
        Documents or any portion or combination of such security, and
        Lender may resort to every other right or remedy available at law
        or in equity without first exhausting the rights and remedies
        contained herein, all in Lender's sole discretion.  Failure of
        Lender, for any period of time or on more than one occasion, to
        exercise its option to accelerate the Maturity Date shall not
        constitute a waiver of the right to exercise the same at any time
        during the continued existence of the Event of Default or in the
        event of any subsequent Event of Default.  Lender shall not by
        any other omission or act be deemed to waive any of its rights or
        remedies hereunder unless such waiver is in writing and signed by
        Lender, and then only to the extent specifically set forth
        therein.  A waiver in connection with one event shall not be
        construed as continuing or as a bar to or as a waiver of any
        right or remedy in connection with a subsequent event.


                                       III

                                  OTHER MATTERS

             3.1  Notices.       Any notices, consents or other
        communications required to be sent or given hereunder shall in
        every case be in writing and shall be deemed properly served if
        (a) delivered personally, (b) sent by registered or certified
        mail, in all such cases with first class postage prepaid, return
        receipt requested, (c) delivered by a recognized overnight
        courier service or (d) sent by facsimile transmission to Borrower
        at (313) 591-6443, or to Lender at (781) 622-1283.  The date of
        service of such notice shall be (a) the date such notice is
                                        4PAGE
<PAGE>
        personally delivered, (b) three days after the day of mailing if
        sent by certified or registered mail, (c) one day after date of
        delivery to the overnight courier if sent by overnight courier or
        (d) when receipt of such transmission is acknowledged, if sent by
        facsimile transmission.  All such notices and other
        communications to a party shall be addressed to such party at the
        address set forth on the initial page hereof or to such other
        address as such party may designate for itself in a notice to the
        other party given in accordance with this section.

             3.2  Governing Law.  THIS NOTE AND THE TRANSACTIONS
        EVIDENCED HEREBY SHALL BE GOVERNED BY AND CONSTRUED UNDER THE
        INTERNAL LAWS OF THE STATE OF MICHIGAN, WITHOUT REGARD TO
        PRINCIPLES OF CONFLICTS OF LAWS, AS THE SAME MAY FROM TIME TO
        TIME BE IN EFFECT, INCLUDING, WITHOUT LIMITATION, THE UNIFORM
        COMMERCIAL CODE AS IN EFFECT IN SUCH STATE.

             3.3  Interpretation.  The headings of sections and
        paragraphs in this Note are for convenience only and shall not be
        construed to limit or define the content, scope, or intent of the
        provisions hereof.  As used in this Note, the singular shall
        include the plural, and masculine, feminine, and neuter pronouns
        shall be fully interchangeable, where the context so requires.
        If any provision of this Note, or any paragraph, sentence,
        clause, phrase, or word, or the application thereof, in any
        circumstances, is adjudicated to be invalid, the validity of the
        remainder of this Note shall be construed as if such invalid part
        were never included herein.  Time is of the essence of this Note.

             3.4  Subsequent Holders.  Upon any endorsement, assignment,
        or other transfer of this Note by Lender or by operation of law,
        the term "Lender," as used herein, shall mean the endorsee,
        assignee, or other transferee or successor to Lender then
        becoming the holder of this Note.

             3.5  Subsequent Obligors.  This Note and all provisions
        hereof shall be binding on all persons claiming under or through
        Borrower.  The terms "Borrower" and "Obligors," as used herein,
        shall include the respective successors, assigns, legal and
        personal representatives, executors, administrators, devisees,
        legatees, and heirs of Borrower and any other Obligors.

                            [signature page follows]

                                        5PAGE
<PAGE>
             In Witness Whereof, Borrower has caused this Note to be
        executed as of the date first written hereinabove.



                                           HOLCROFT L.L.C.

                                           By:  Holcroft Technologies
                                                L.P., Sole Member of
                                                Holcroft L.L.C.

                                           By:  Holcroft Management,
                                                Inc., General Partner of
                                                Holcroft Technologies
                                                L.P.

                                           By:  /s/ Scott M. Murray      
                                           Name:  Scott M. Murray
                                           Title: President


                                                             Exhibit 2.4

                             SUBORDINATION AGREEMENT
                          (All Indebtedness and Liens)


             Holcroft L.L.C., a Delaware limited liability company of
        Livonia, Michigan ("Borrower") is indebted to the undersigned
        ("Creditor") in the principal sum of Two Million Two Hundred
        Eighteen Thousand Dollars ($2,218,000) evidenced by a promissory
        note dated October 10, 1997 which indebtedness is secured by a
        security interest in the property described in attached Exhibit
        "A", and Creditor is or may become financially interested in
        Borrower and desires to aid Borrower in obtaining or having
        continued financial accommodations, whether by way of loan,
        commitment to loan, discounting of instruments, extensions of
        credit or the obtaining of any other financial aid from Comerica
        Bank (the "Bank"), a Michigan banking corporation of 500 Woodward
        Avenue, Detroit, Michigan 48226.

             In order to induce the Bank to extend or to continue to
        extend financial accommodations to Borrower from time to time,
        whether by way of a loan, commitment to loan, discounting of
        instruments, extension of credit or otherwise and in
        consideration of any of these financial accommodations, Creditor
        agrees as follows:

        1.   Any and all obligations and liabilities of Borrower to
             Creditor, including, without limit, principal and interest,
             whether direct or indirect, absolute or contingent, joint or
             several, secured or unsecured, due or to become due, now
             existing or later arising and whatever the amount and
             however evidenced including, without limit, the debt
             described above but excluding the Receivable Note executed
             by Borrower in favor of Creditor dated as of the date hereof
             in the original principal amount of $657,532.51 (the
             "Subordinated Indebtedness"), are subordinated in right of
             payment to any and all obligations and liabilities of
             Borrower to the Bank, including, without limit, principal
             and interest, whether accrued before or after the filing of
             a petition in bankruptcy or similar insolvency proceeding,
             and whether direct or indirect, absolute or contingent,
             joint or several, secured or unsecured, due or to become
             due, now existing or later arising and however evidenced,
             together with all other sums due thereon and all costs of
             collecting the same (including, without limit, reasonable
             attorney fees) for which Borrower is liable (the "Senior
             Indebtedness").

        2.(a)Borrower may not make and Creditor may not receive (by way
             of voluntary payment, set-off, counterclaim or otherwise)
             any payment of principal, interest or any other any other
             amount due with respect to the Subordinated Indebtedness, if
PAGE
<PAGE>
             at the time of such payment Creditor shall have received a
             notice from Bank of the occurrence of a default with respect
             to the Senior Indebtedness ("Default Notice"). Borrower may
             resume payments (and may make any payments missed due to
             application of the foregoing) and Creditor may receive such
             payments in respect of the Subordinated Indebtedness upon
             the earlier of (a) the cure or written waiver by Bank of
             such default or (b) 180 days shall have elapsed since the
             date the Default Notice was received by Creditor. In no
             event may Borrower make or Creditor receive any prepayment
             of the Subordinated Indebtedness without the consent of
             Bank, which consent may be withheld in the Bank's sole
             discretion.

        (b)  Until the Senior Indebtedness is paid in full, Creditor
             shall not, without the prior written consent of Bank, take
             any Collection Action (as defined below) with respect to the
             Subordinated Indebtedness, except as permitted in the
             following sentence. After the passage of one hundred eighty
             (180) days from the occurrence of any payment default with
             respect to the Subordinated Indebtedness if such default
             shall not have been cured or waived within such period, then
             the Creditor may, upon five (5) business days' prior written
             notice to Bank accelerate the Subordinated Indebtedness or
             take other Collection Action. Such five-day notice may be
             given during the 180-day period described in the preceding
             sentence. Notwithstanding the foregoing, Creditor may file
             proofs of claim against the Borrower in any Proceeding
             involving the Borrower.

             "Collection Action" shall mean (a) to demand, sue for,
             take or receive from or on behalf of the Borrower, by
             set-off or in any other manner, the whole or any part
             of any moneys which may now or hereafter be owing by
             the Borrower with respect to the Subordinated
             Indebtedness, (b) to initiate or participate with
             others in any suit, action or proceeding against the
             Borrower to (i) enforce payment of or to collect the
             whole or any part of the Subordinated Indebtedness or
             (ii) commence judicial enforcement of any of the rights
             and remedies under the documents executed with respect
             to the Subordinated Indebtedness or applicable  law
             with respect to the Subordinated Indebtedness or the
             documents executed in connection with the Subordinated
             Indebtedness, or (c) to accelerate any Subordinated
             Indebtedness.

        (c)  Creditor shall not amend or modify any of the documents
             evidencing or relating to the Subordinated Indebtedness
             without the consent of Bank.

        3.   All rights of Creditor in any collateral now or later
             securing the Subordinated Indebtedness are subordinated to
                                        2PAGE
<PAGE>
             all rights of the Bank now or later existing in any of the
             same collateral securing the Senior Indebtedness. Creditor
             waives all rights to require the Bank to marshall the
             collateral for the Senior Indebtedness or any other property
             the Bank may at any time have as security for the Senior
             Indebtedness and waives all right to require the Bank to
             first proceed against any guarantor or other person before
             proceeding against such collateral. Creditor shall not
             contest the validity, priority or perfection of the Bank's
             security interest in any collateral in which the Creditor
             may also have an interest. The priorities of the Bank and
             the Creditor in such collateral shall be in accordance with
             this Agreement, regardless of whether the Bank's security
             interest or lien in such collateral is valid or perfected.
             Bank may take action to foreclose or otherwise realize upon,
             or protect its interest in, the collateral, in accordance
             with its agreements with the Borrower, at any time, without
             the consent of Creditor, and Creditor agrees not to
             interfere in a manner which would defeat the purpose of this
             Agreement in connection therewith. Bank agrees to provide
             Creditor with notice of such foreclosure or other
             realization upon its collateral. So long as any part of the
             Senior Indebtedness is outstanding, if Bank has agreed to
             release its security interest in any of the collateral in
             connection with the realization of any of its rights with
             respect to such collateral, Bank is hereby authorized as
             Creditor's attorney in fact to execute releases and
             discharges of Creditor's liens and security interests in
             such collateral provided that Bank is releasing or
             discharging Bank's security interest in such collateral as
             part of the same transaction and provided that Bank gives
             Creditor five days prior written notice of such release
             during which such five day period Creditor does not sign and
             deliver to Bank any such releases or discharges.

        4.   In the event of any Proceeding (as defined below) involving
             the Borrower, (a) all Senior Indebtedness first shall be
             paid in full before any payment of or with respect to the
             Subordinated Indebtedness shall be paid; (b) any payment or
             distribution, whether in cash, property or securities which,
             but for the terms hereof, otherwise would be payable or
             deliverable in respect of the Subordinated Indebtedness,
             shall be paid or delivered directly to Bank (to be held
             and/or applied by Bank in accordance with the terms of the
             Senior Indebtedness) until all Senior Indebtedness is paid
             in full; (c) Creditor agrees to execute and deliver to Bank
             or its representative all such further instruments
             reasonable requested by Bank confirming the authorization
             referred to in the foregoing clause (b); and (d) Creditor
             agrees to execute, verify, deliver and file any proofs of
             claim in respect of the Subordinated Indebtedness in
             connection with any such Proceeding and hereby irrevocably
             authorizes, empowers and appoints Bank its agent and
                                        3PAGE
<PAGE>
             attorney-in-fact to (i) execute, verify, deliver and file
             such proofs of claim upon the failure of Creditor promptly
             to do so (and, in any event, prior to 10 days before the
             expiration of the time to file any such proof) and (ii) vote
             such claim in any such Proceeding upon the failure of
             Creditor to do so prior to 10 days before the expiration of
             the time to vote and such claim; provided, however, that
             Bank shall have no obligation to execute, verify, deliver,
             file and/or vote any such proof of claim. In the event that
             Bank votes any claim in accordance with the authority
             granted hereby, Creditor shall not be entitled to change or
             withdraw such vote. 

             "Proceeding" shall mean any voluntary or involuntary
             insolvency, bankruptcy, receivership, custodianship,
             liquidation, dissolution, reorganization, assignment
             for the benefit of creditors, appointment of a
             custodian, receiver, trustee or other officer with
             similar powers or any other proceeding for the
             liquidation, dissolution or other winding up of
             Borrower.

        5.   Should any payment, distribution or security or proceeds
             from these be received by Creditor upon or with respect to
             the Subordinated Indebtedness prior to the satisfaction in
             full of the Senior Indebtedness which is not permitted by
             the terms of this Agreement, Creditor shall immediately
             deliver same to the Bank in the form received (except for
             endorsement or assignment by Creditor where required by the
             Bank), for application on the Senior Indebtedness (whether
             or not then due and in such order of maturity as Bank
             elects) and, until so delivered, the same shall be held in
             trust by Creditor as the property of the Bank. In the event
             of the failure of Creditor to make this endorsement or
             assignment and if such failure remains uncured for fifteen
             (15) days following written notice thereof from Bank to
             Creditor, the Bank or any Bank employee is irrevocably
             authorized and appointed as attorney-in-fact for Creditor to
             make the same.

        6.   Creditor represents and warrants that it has not made or
             permitted to be made any assignment or transfer, for
             collateral purposes or otherwise, of the Subordinated
             Indebtedness or any collateral or other security for the
             Subordinated Indebtedness. Creditor shall not make or permit
             any assignment, transfer, pledge or disposition of all or
             any part of the Subordinated Indebtedness or any collateral
             or other security for the Subordinated Indebtedness while
             any Senior Indebtedness remains unpaid except upon five (5)
             days prior written notice to Bank and unless the assignee or
             transferee has agreed in a writing acceptable to the Bank to
             be bound by the terms of this Agreement. Until the Senior
             Indebtedness is paid in full, each instrument evidencing any
                                        4PAGE
<PAGE>
             Subordinated Indebtedness shall at all times contain in a
             conspicuous manner the following legend:

             "This Note and the indebtedness evidenced hereby are
             subordinate in the manner and extent set forth in that
             certain Subordination Agreement dated as of October 10,
             1997 among Thermo Terratech, Inc., Comerica Bank and
             Holcroft L.L.C. to the indebtedness owed by Holcroft
             L.L.C. to Comerica Bank and each holder of this Note,
             by its acceptance hereof, shall be bound by the
             provisions of the Subordination Agreement."

        7.   Possession by the Bank of any note or other evidence of
             indebtedness made, endorsed or guaranteed by Borrower shall
             be conclusive evidence (but not the only means of
             establishing) that Borrower is indebted to the Bank and that
             this indebtedness is covered by this Agreement.

        8.   This Agreement constitutes a continuing agreement of
             subordination and shall remain in full force and effect
             until such time as all of the Senior Indebtedness has been
             paid in full, each commitment on the part of Bank to extend
             credit to Borrower has been terminated and all letters of
             credit issued by Bank for the account of Borrower have
             expired.

        9.   Creditor waives notice of acceptance of this Agreement and
             presentment, demand, protest, notice of protest, dishonor,
             notice of dishonor, notice of default and diligence in
             collecting any Senior Indebtedness, and agrees that the Bank
             may modify the terms of borrowing, compromise, extend,
             increase, accelerate, renew or forbear to enforce payment of
             any part or all of any Senior Indebtedness, or permit
             Borrower to incur additional Senior Indebtedness, all
             without notice to Creditor and without affecting in any
             manner the Bank's rights or Creditor's obligations under
             this Agreement. Creditor further waives any and all other
             notices to which Creditor might otherwise be entitled.
             Creditor acknowledges and agrees that the Bank's rights
             under this Agreement are not conditioned upon pursuit by the
             Bank of any remedy the Bank may have against the Borrower or
             any other person or any other security. The absence of
             Borrower's signature at the end of this Agreement shall in
             no way impair or affect the validity of this Agreement.

        10.  Creditor delivers this Agreement based solely on Creditor's
             independent investigation of (or decision not to
             investigate) the financial condition of the Borrower and is
             not relying on any information furnished by the Bank.
             Creditor assumes full responsibility for obtaining any
             further information concerning the Borrower's financial
             condition, the status of the Senior Indebtedness or any
             other matter which Creditor may deem necessary or
                                        5PAGE
<PAGE>
             appropriate now or later. Creditor waives any duty on the
             part of the Bank, and agrees that Creditor is not relying
             upon nor expecting the Bank to disclose to Creditor any fact
             now or later known by the Bank, whether relating to the
             operations or condition of the Borrower, the existence,
             liabilities or financial condition of any guarantor of the
             Senior Indebtedness, the occurrence of any default with
             respect to the Senior Indebtedness, or otherwise,
             notwithstanding any effect such fact may have upon
             Creditor's risk or Creditor's rights against the Borrower.
             Creditor knowingly accepts the full range of risk
             encompassed in this Agreement, which risk includes, without
             limit, the possibility that the Borrower may incur Senior
             Indebtedness to the Bank after the financial condition of
             the Borrower, or its ability to pay Borrower's debts as they
             mature, has deteriorated.

        11.  Creditor represents that: (a) the Bank has made no
             representation to Creditor as to the creditworthiness of the
             Borrower; and (b) Creditor has established adequate means of
             obtaining from the Borrower on a continuing basis financial
             and other information pertaining to the Borrower's financial
             condition. Creditor agrees to keep adequately informed of
             any facts, events, or circumstances which might in any way
             affect the risks of Creditor under this Agreement.

        12.  The Bank, in its sole discretion, without notice to
             Creditor, may release, exchange, enforce and otherwise deal
             with any security now or later held by the Bank for payment
             of the Senior Indebtedness or release any party now or later
             liable for payment of the Senior Indebtedness without
             affecting in any manner the Bank's rights under this
             Agreement. Creditor acknowledges and agrees that the Bank
             has no obligation to acquire or perfect any lien on or
             security interest in any asset(s), whether realty or
             personalty, to secure payment of the Senior Indebtedness.

        13.  If after receipt of any payment of all or any part of the
             Senior Indebtedness, the Bank is for any reason compelled to
             surrender the payment to any person or entity, because the
             payment is determined to be void or voidable as a
             preference, impermissible setoff, diversion of trust funds
             or for any other reason, then to the extent of that payment,
             the Senior Indebtedness shall be automatically revived and
             the Bank's rights under this Agreement shall be
             automatically continued in effect without reduction or
             discharge for that payment, and this Agreement shall
             automatically continue in full force notwithstanding any
             contrary action which may have been taken by the Bank in
             reliance upon that payment (including, without limit,
             surrender or termination of this Agreement) and any contrary
             action so taken shall be without prejudice to the Bank's
             rights under this Agreement and shall be deemed to have been
                                        6PAGE
<PAGE>
             conditioned upon that payment having become final and 
             irrevocable.

        14.  Creditor waives any right to require the Bank to: (a)
             proceed against any person, including without limit the
             Borrower; (b) proceed against or exhaust any security held
             from the Borrower or any other person; (c) pursue any other
             remedy in the Bank's power; or (d) make any presentments or
             demands for performance, or give any notices of
             nonperformance, protests, notices of protest or notices of
             dishonor in connection with any obligations or evidences of
             Senior Indebtedness held by the Bank as security, in
             connection with any other obligations or evidences of Senior
             Indebtedness which continues in whole or in part as the
             Senior Indebtedness, or in connection with the creation of
             new or additional Senior Indebtedness.

        15.  Creditor acknowledges that the Bank has the right to sell,
             assign, transfer, negotiate or grant participations or any
             interest in, any or all of the Senior Indebtedness and any
             related obligations, including without limit this Agreement.

        16.  No waiver or modification of any of its rights under this
             Agreement shall be effective unless the waiver or
             modification shall be in writing and signed by an authorized
             officer on behalf of the Bank, and each waiver or
             modification shall be a waiver or modification only with
             respect to the specific matter to which the waiver or
             modification relates and shall in no way impair the rights
             of the Bank or the obligations of Creditor to the Bank in
             any other respect.

        17.  Creditor waives notice of acceptance by the Bank of this
             Agreement and this Agreement is immediately binding upon
             Creditor.

        18.  This Agreement shall bind and be for the benefit of Creditor
             and the Bank and their respective successors and assigns,
             and shall be construed according to the laws of the State of
             Michigan.

        19.  The term "Borrower", as used in this Agreement, includes any
             person, corporation, partnership or business entity which
             succeeds to the interests or business of the Borrower named
             above, and the terms "Senior Indebtedness" and "Subordinated
             Indebtedness" include indebtedness of any successor Borrower
             to the Bank and Creditor.

        20.  If this Agreement is executed by two or more persons, it
             shall bind each of them individually as well as jointly.

        21.  Creditor agrees to reimburse the Bank for any and all costs
             and expenses (including, without limit, court costs, legal
                                        7PAGE
<PAGE>
             fees, and reasonable attorney fees whether inside or outside
             counsel is used, whether or not suit is instituted and, if
             instituted, whether at the trial or appellate level, in a
             bankruptcy, probate or administrative proceeding, or
             otherwise) incurred in enforcing any of the duties and
             obligations of Creditor under this Agreement but only to the
             extent such costs or expenses are incurred as a result of a
             breach by Creditor of the terms and provisions of this
             Agreement which breach remains uncured for fifteen (15) days
             after written notice thereof by Bank to Creditor.

             THE UNDERSIGNED AND THE BANK ACKNOWLEDGE THAT THE RIGHT TO
        TRIAL BY JURY IS A CONSTITUTIONAL ONE, BUT THAT IT MAY BE WAIVED.
        EACH PARTY, AFTER CONSULTING (OR HAVING HAD THE OPPORTUNITY TO
        CONSULT) WITH COUNSEL OF THEIR CHOICE, KNOWINGLY AND VOLUNTARILY,
        AND FOR THEIR MUTUAL BENEFIT, WAIVES ANY RIGHT TO TRIAL BY JURY
        IN THE EVENT OF LITIGATION REGARDING THE PERFORMANCE OR
        ENFORCEMENT OF, OR IN ANY WAY RELATED TO, THIS AGREEMENT.

             IN WITNESS WHEREOF, Creditor has caused this Agreement to be
        executed as of the  10th day of October, 1997.


                                           CREDITOR:

        WITNESS(ES):                       THERMO TERRATECH INC.


        /s/ Cheryl Norden                  /s/ John P. Appleton

        /s/ Christine Leonard              Chief Executive Officer


                                           CREDITOR'S ADDRESS:


                                           81 Wyman Street

                                           Waltham, MA 02254



                                           COMERICA BANK:


                                           /s/ Michael Stapleton

                                           Vice President

                                        8PAGE
<PAGE>
                            Borrower's Acknowledgment

             Holcroft L.L.C. ("Borrower"), accepts notice of
        subordination created by this Agreement and agrees that it will
        take no action inconsistent with this Agreement and that, except
        with the prior written approval of Bank, no payment or
        distribution shall be made by Borrower on or with respect to the
        Subordinated Indebtedness, so long as this Agreement remains in
        effect. Borrower agrees that the Bank may, at its option, without
        notice and without limiting Bank's other rights, upon any breach
        by Creditor of, or purported termination by the Creditor of, this
        Agreement, declare all Senior Indebtedness to be immediately due
        and payable and/or terminate any commitments of Bank to Borrower.


                                 BORROWER:

                                           HOLCROFT L.L.C.

                                           By:  Holcroft Technologies
                                                L.P., Sole Member of
                                                Holcroft L.L.C.

                                           By:  Holcroft Management,
                                                Inc., General Partner of
                                                Holcroft  Technologies
                                                L.P.


                                           By: /s/ Scott M. Murray

                                           Its: President


                                           Dated: October 10, 1997
PAGE
<PAGE>
                                    EXHIBIT A

             All of the Debtor's now owned or hereafter acquired: (i)
        inventory; (ii) accounts, contract rights, chattel paper,
        documents and instruments; (iii) technology or know-how; (iv)
        other general intangibles, including but not limited to
        trademarks, patent rights, copyrights, goodwill, records,
        computer programs and rights in premises used in the conduct of
        Debtor's business; (v) equipment, including but not limited to
        all vehicles, machinery, tools, furniture and fixtures; and (vi)
        other personal property of every kind, including tax refunds or
        interests in the claims under policies of insurance; and all
        products and proceeds of the foregoing, including insurance
        proceeds.




                                                              Exhibit 2.5


                          SECOND AMENDMENT TO SUBLEASE



             THIS SECOND AMENDMENT TO SUBLEASE (this "Amendment") is
        entered into as of October 10, 1997, by and between TMO, INC.,
        having an address at 81 Wyman Street, Waltham, Massachusetts
        02254 ("Landlord"), and THERMO TERRATECH INC., having an address
        at 81 Wyman Street, Waltham, Massachusetts 02254 ("Tenant").  

                              W I T N E S S E T H:

             WHEREAS, pursuant to the terms of that certain Agreement of
        Lease dated as of December 31, 1985 (as amended, the
        "Overlease"), by and between W & C Investment Co.
        ("Overlandlord"), successor-in-interest to Claridge Properties
        Ltd., and Landlord, successor-in-interest to Thermo Electron
        Corporation, Overlandlord currently leases to Landlord certain
        premises known and numbered as 12068 Market Street, Livonia,
        Michigan, and more particularly described in the Overlease (the
        "Demised Premises"); and 

             WHEREAS, pursuant to the terms of that certain Sublease
        dated as of March 30, 1986 (as amended, the "Sublease"), by and
        between Landlord and Tenant, successor-in-interest to
        Holcroft/Loftus, Inc., Landlord currently subleases to Tenant the
        Demised Premises; and 

             WHEREAS, Landlord and Tenant desire to amend the Sublease as
        more particularly set forth herein;

             NOW, THEREFORE, in consideration of the mutual covenants set
        forth herein, and for other good and valuable consideration, the
        receipt and sufficiency of which are hereby acknowledged, the
        parties hereto agree as follows:

             1.   Section 6.6 of the Sublease is hereby amended to
        incorporate by reference into the Sublease the provisions of
        Article 30 of the Overlease.

             2.   The following new Article is hereby added to the
        Sublease:

                  "Article 9.    Option to Extend.

                  Section  9.1.    Provided that Tenant shall not be in
        default of its obligations under this Sublease, Tenant shall have
        an option to extend the Term of this Sublease for one (1)
        additional period of five (5) years (the "Renewal Period"), which
        option shall be exercisable by written notice to Landlord given
        no less than thirteen (13) months prior to the expiration of the
PAGE
<PAGE>
        then current Term.  Upon receipt of such notice, Landlord shall
        exercise its corresponding option to renew the Overlease.  All of
        the terms, covenants and provisions of this Sublease shall apply
        to such Renewal Period, except that the annual fixed rental
        payable with respect to such Renewal Period shall be equal to the
        annual Fixed Rent payable to Overlandlord under Article 30 of the
        Overlease.  In the event that Tenant elects to exercise its
        option to extend under this Section 9.1, Tenant shall be
        responsible for the payment of all costs payable by the lessee
        under Section 30.04 of the Overlease.  During the Renewal Period,
        all references in this Sublease to the Term shall be deemed to
        mean the original Term as extended by the Renewal Period.  Tenant
        shall have no further right to extend the Term of this Sublease
        following the expiration of the Renewal Period."

             3.   Except as specifically herein provided, all of the
        terms, provisions, covenants and conditions of the Sublease are
        hereby ratified and confirmed and shall continue in full force
        and effect.  Any capitalized term not defined herein shall have
        the meaning ascribed to it under the Sublease.

             4.   The individuals executing this Amendment hereby
        represent and warrant that they are empowered and duly authorized
        to so execute this Amendment on behalf of the parties they
        represent. 

             IN WITNESS WHEREOF, the parties hereto have caused this
        Amendment to be executed as a sealed instrument as of the date
        first above written.

                                           LANDLORD:

                                           TMO, INC., 
                                           a Delaware corporation


                                           By:    /s/Sandra L. Lambert
                                           Name:  Sandra L. Lambert
                                           Title: Secretary



                                           TENANT:

                                           THERMO TERRATECH INC.,
                                           a Delaware corporation

                                           By:    /s/ John P. Appleton
                                           Name:  John P. Appleton
                                           Title: Chief Executive Officer


                                                              Exhibit 2.6

                                    SUBLEASE


             THIS SUBLEASE (this "Sublease") is made as of October 10,
        1997, by and between THERMO TERRATECH INC., a Delaware
        corporation ("Sublandlord"), and HOLCROFT L.L.C., a Delaware
        limited liability company ("Subtenant").

                              W I T N E S S E T H:

             WHEREAS, pursuant to the terms of that certain Agreement of
        Lease dated as of December 31, 1985 (as amended, the
        "Overlease"), by and between W & C Investment Co.
        ("Overlandlord"), successor-in-interest to Claridge Properties
        Ltd., and TMO, Inc. ("Overtenant"), successor-in-interest to
        Thermo Electron Corporation, Overlandlord currently leases to
        Overtenant certain premises known and numbered as 12068 Market
        Street, Livonia, Michigan, and more particularly described in the
        Overlease (the "Entire Premises"); and

             WHEREAS, pursuant to the terms of that certain Sublease
        dated as of March 30, 1986 (as amended, the "Oversublease"), by
        and between Overtenant and Sublandlord, successor-in-interest to
        Holcroft/Loftus, Inc., Overtenant currently subleases to
        Sublandlord the Entire Premises; and

             WHEREAS, Sublandlord desires to further sublease to
        Subtenant varying portions of the Entire Premises upon the terms
        and subject to the conditions more particularly set forth herein;

             NOW, THEREFORE, in consideration of the mutual covenants
        contained herein, and for other good and valuable consideration,
        the receipt and sufficiency of which are hereby acknowledged, the
        parties hereto agree as follows:

             1.   Demise of Sublease Premises.

                  1.1  Upon the terms and subject to the conditions
        hereinafter set forth, Sublandlord agrees to demise to Subtenant
        the following premises:

                       (a)  During Subterm A (as defined in Section 2
        below), a portion of the Entire Premises consisting of
        approximately 96,000 square feet and delineated in red on the
        Site Plan attached hereto as Exhibit A and incorporated herein by
        this reference (the "Sublease Premises A");

                       (b)  During Subterm B (as defined in Section 2
        below), the Sublease Premises A, together with an additional
                                        1PAGE
<PAGE>
        portion of the Entire Premises consisting of approximately 37,000
        square feet and delineated in blue on the Site Plan attached
        hereto as Exhibit A (collectively, the "Sublease Premises B");
        and

                       (c)  During Subterm C (as defined in Section 2
        below), the Sublease Premises B, together with an additional area
        consisting of approximately 37,000 square feet and comprising the
        balance of the Entire Premises.

        The term "the Sublease Premises" as used in this Sublease shall
        mean and refer to (i) the Sublease Premises A during Subterm A,
        (ii) the Sublease Premises B during Subterm B and (iii) the
        Entire Premises during Subterm C.  Subtenant shall have the right
        (in common with others during Subterm A and Subterm B, and
        exclusively during Subterm C) to use the parking and other common
        areas serving the Entire Premises.

                  1.2  Notwithstanding the foregoing, Subtenant shall
        have the right at any time during Subterm B to elect, upon
        written notice to Sublandlord (the "Expansion Notice"), to add to
        the Sublease Premises B the then unleased balance of the Entire
        Premises, effective as of the date of Sublandlord's receipt of
        the Expansion Notice; provided, however, that Subtenant's
        aforesaid right of expansion shall not be exercisable if
        Sublandlord has, prior to its receipt of the Expansion Notice
        from Subtenant, signed a sublease or letter of intent with a
        third party for the subleasing of such space.

             2.   Term.   The term of this Sublease shall commence on
        October 10, 1997 (the "Commencement Date") and shall continue for
        the following consecutive periods:

                  (a)  The period from the Commencement Date through and
                       including October 31, 1997 ("Subterm A");

                  (b)  The period from November 1, 1997 through and
                       including October 31, 1998 ("Subterm B"); and

                  (c)  The period from November 1, 1998 through and
                       including December 31, 2004 ("Subterm C");
                       provided, however, that if Subtenant elects to
                       exercise its expansion option under Section 1.2
                       above, Subterm C shall commence as of the date of
                       Sublandlord's receipt of the Expansion Notice.

        Subterm A, Subterm B and Subterm C are hereinafter collectively
        referred to as the "Term".


             3.   Annual Fixed Rent.   Subtenant shall pay to
        Sublandlord, in lawful money of the United States, without any
        set-off or deduction whatsoever, annual fixed rent (the "Annual
        Fixed Rent") at the following rates:

                                        2PAGE
<PAGE>
                                                     Annual Fixed
                       Period                        Rent Rate

                  (a)  Subterm A and Subterm B:      $228,500

                  (b)  Subterm C:                    The annual fixed 
                                                     rental payable by
                                                     Overtenant to 
                                                     Overlandlord under
                                                     Article 3 of the 
                                                     Overlease.

        The Annual Fixed Rent shall be payable in twelve (12) equal
        monthly installments in advance on the first day of each calendar
        month during the Term hereof; provided, however, that the parties
        agree that the installment of Annual Fixed Rent payable with
        respect to Subterm A shall be paid  upon execution of this
        Sublease and that such installment shall be calculated as if
        Subterm A commenced on October 1, 1997.  In the event that the
        Term expires, or this Sublease is otherwise terminated in
        accordance with its terms, on a date other than the last day of a
        calendar month, the final monthly installment of Annual Fixed
        Rent shall be pro-rated accordingly on a per diem basis.  All
        payments of Annual Fixed Rent, additional rent and other charges
        under this Sublease shall be made to Sublandlord at its address
        set forth in Section 17 below, or at such other address or
        addresses as Sublandlord may from time to time designate.  

             4.   Insurance.

                  4.1  Subtenant shall obtain on or before the
        Commencement Date, and shall keep in effect at all times during
        the Term hereof, the following insurance coverage with respect to
        the Sublease Premises:

                  (a)  Comprehensive general liability insurance insuring
        against claims for bodily injury, death or property damage
        occurring on, in or about the Sublease Premises, written on an
        occurrence basis and having a combined single limit not less than
        $5,000,000.00;

                  (b)  Workers' Compensation Insurance, in amounts
        required by applicable law, covering all persons working at or in
        the Sublease Premises; 

                  (c)  Fire and Extended Coverage Insurance in an amount
        adequate to cover the actual cash value of all of Subtenant's
        personal property, trade fixtures, tenant improvements, equipment
        and the like located on the Sublease Premises; and

                                        3PAGE
<PAGE>
                  (d)  Such other insurance as Overlandlord may
        reasonably require.

             All such insurance shall be in responsible companies
        qualified to do business in the State of Michigan, and Subtenant
        shall deliver to Sublandlord, prior to the time such insurance is
        required to be maintained, certificates of such insurance
        evidencing the coverage required hereunder.  The insurance
        referenced in clause (a) above shall name Sublandlord,
        Overtenant, Overlandlord and any Mortgagee (as defined in Section
        3A.02 of the Overlease) as additional insureds, and shall provide
        that the same may only be canceled or amended upon no less than
        ten (10) days' prior written notice to said additional insureds.
        Notwithstanding anything to the contrary contained herein,
        Sublandlord and Subtenant each hereby waives all rights of
        recovery against the other party, and such other party's
        insurance company (by way of subrogation or otherwise), for all
        losses, damages or injuries to the Sublease Premises or Entire
        Premises, any improvements thereon or any personal property of
        either party therein, to the extent such waiver does not
        invalidate any insurance coverage of either party; provided,
        however, that the foregoing waiver by either party shall not
        apply with respect to any loss, damage or injury to the extent
        caused by the negligence or willful misconduct of the other
        party, its agents, employees, representatives or contractors.

                  4.2  During Subterm A and Subterm B, Subtenant  shall
        pay to Sublandlord, as additional rent, Subtenant's Pro Rata
        Share (as hereinafter defined) of the cost incurred by
        Sublandlord in maintaining the insurance coverage required under
        Article 7 of the Overlease.  During Subterm C, Subtenant shall
        pay to Sublandlord, as additional rent, the full amount of the
        cost incurred by Sublandlord in maintaining the aforesaid
        insurance coverage.  For purposes of this Sublease, Subtenant's
        Pro Rata Share at any given time during the Term hereof shall be
        a percentage equal to the ratio of the then total square footage
        of the Sublease Premises to the total square footage of the
        Entire Premises.

                  4.3  Payment of all additional rent under this Section
        4 shall be made by Subtenant to Sublandlord within ten (10) days
        after demand therefor.

             5.   Additional Charges.

                  5.1  During Subterm A and Subterm B, Subtenant shall
        pay to Sublandlord, as additional rent, Subtenant's Pro Rata
        Share of all Impositions (as defined in Section 4.01 of the
        Overlease) payable to Overlandlord under Article 4 of the
        Overlease.  During Subterm C, Subtenant shall pay to Sublandlord,
        as additional rent, the full amount of all Impositions payable to
        Overlandlord under Article 4 of the Overlease.

                                        4PAGE
<PAGE>
                  5.2  During Subterm A and Subterm B, Subtenant shall
        pay to Sublandlord, as additional rent, Subtenant's Pro Rata
        Share of all charges payable to Overlandlord under Article 5 of
        the Overlease, except for utility charges which shall be payable
        in accordance with the following provisions of this Section 5.2.
        During Subterm A, Subtenant shall pay to Sublandlord, as
        additional rent, all charges for electricity, gas, water, sewage,
        garbage, telephone and other utilities (collectively,
        "Utilities") used or consumed in the Sublease Premises, which
        charges shall be based upon Subtenant's estimated usage as
        determined by Sublandlord in its reasonable discretion.  From and
        after the commencement date of Subterm C, Subtenant shall pay,
        directly to the applicable provider thereof,  all charges for
        Utilities used or consumed in the Entire Premises.  

                  5.3  Payment of all additional rent under this Section
        5 shall be made by Subtenant to Sublandlord within ten (10) days
        after demand therefor.

             6.   Use.   Subtenant shall have the right to use the
        Sublease Premises only for those uses permitted under Article 2
        of the Overlease.  Subtenant shall conduct its business
        operations in the Sublease Premises in a first class manner and
        so as not to disturb the quiet enjoyment or interfere with the
        business operations of any other tenant or occupant of the
        building in which the Sublease Premises are located.  Subtenant
        shall not commit or suffer to be committed any waste upon the
        Sublease Premises and agrees not to injure, overload, deface or
        otherwise damage the Sublease Premises.  Subtenant shall not
        permit the emission of any objectionable noise, vibration, odor
        or fumes from the Sublease Premises, nor make any use of the
        Sublease Premises which is offensive, noxious, or liable to
        create a nuisance or to invalidate or increase the premiums for
        any insurance thereon maintained by Overtenant and/or
        Overlandlord.  In its use and occupancy of the Sublease Premises,
        Subtenant shall comply, at Subtenant's sole cost and expense,
        with the requirements of all applicable zoning, building, fire,
        health and other codes, statutes, regulations, rules, orders,
        ordinances and laws of any federal, state or local governmental
        or other public authority (including without limitation any
        requirements related to the issuance of a certificate of
        occupancy for the Sublease Premises).  Subtenant, promptly after
        obtaining knowledge thereof, will notify Sublandlord, and any
        other persons designated by Sublandlord, of any action or
        proceeding affecting the Sublease Premises.

             7.   Alterations.   Subtenant shall not make any
        alterations, additions or improvements to the Sublease Premises
        without the prior written consent of Sublandlord, which consent
        will not be unreasonably withheld; provided, however, that it is
        understood and agreed that the granting of Sublandlord's consent
        under this Section 7 with respect to any proposed alteration,
        addition or improvement shall be conditioned upon Sublandlord's

                                        5PAGE
<PAGE>
        receipt of Overlandlord's consent to the same, to the extent
        required by the terms of the Overlease, and further provided that
        the making by Subtenant of any such alteration, addition or
        improvement shall be in compliance with all applicable provisions
        of  Article 11 of the Overlease.  Notwithstanding the foregoing,
        in the event that any proposed alteration, addition or
        improvement is approved by Overlandlord and Overlandlord further
        agrees in writing that the same need not be removed upon the
        expiration or earlier termination of the Overlease, Sublandlord's
        consent to the making of such alteration, addition or improvement
        shall not be required.

             8.   Maintenance and Repair.

                  8.1  During Subterm A and Subterm B, Sublandlord shall,
        at its sole cost and expense, maintain the Sublease Premises in
        good condition and repair; provided, however, that to the extent
        any repairs are required due to the negligence or willful
        misconduct of Subtenant, its agents, employees, representatives
        or contractors, the same shall be made by Subtenant at
        Subtenant's sole cost and expense.  Notwithstanding anything to
        the contrary contained herein, Subtenant shall be solely
        responsible for janitorial cleaning of the Sublease Premises and
        garbage and trash disposal therefrom.  Subtenant shall provide,
        at Subtenant's sole cost and expense, reasonable security
        protection for the Sublease Premises.

                  8.2  During Subterm C, Subtenant shall, at its sole
        cost and expense, maintain the Sublease Premises, and all
        sidewalks, grounds, parking and other areas, vaults, chutes,
        sidewalk hoists, railings, gutters, water and sewer connections,
        alleys and curbs in front of or adjacent to the Sublease
        Premises, in good and safe order and condition, all in accordance
        with Article 10 of the Overlease, and shall further perform all
        other obligations of the lessee under said Article 10.

             9.   Fire and other Casualty.   If the whole or any part of
        the Sublease Premises shall be damaged by fire or other casualty
        and neither the Overlease nor the Oversublease is terminated on
        account thereof, this Sublease shall remain in full force and
        effect and Annual Fixed Rent and all other charges payable
        hereunder shall not abate unless there is an abatement of Fixed
        Rent and Additional Rent under the terms of the Overlease, and
        then only to the extent such abatement is allocable to the
        Sublease Premises. 

             10.  Subordination.   This Sublease shall be fully
        subordinate to (i) the Overlease and all extensions or
        modifications thereof, (ii) any Mortgage (as defined in Section
        3A.02 of the Overlease) on the Sublease Premises or any part
        thereof, and (iii) the Oversublease.  The foregoing provisions
        shall be self-operative and no further instrument of
        subordination shall be necessary; provided, however, that
        Subtenant agrees to execute any and all documents or instruments

                                        6PAGE
<PAGE>
        required by Overlandlord under the Overlease, the holder of any
        such Mortgage or Overtenant, or their respective counsel, to
        evidence such subordination.  A true and complete copy of each of
        the Overlease and Oversublease are attached hereto as Exhibit B-1
        and Exhibit B-2, respectively.  The following provisions of the
        Overlease are incorporated herein by reference, as they relate to
        the Term hereof and to the Sublease Premises, with the same force
        and effect as if they were fully set forth herein, except as to
        those matters otherwise provided for herein:  Articles 2, 3
        (except for Section 3.01), 3A (except for the words "is a net
        lease" in line one of Section 3A.01), 4 (except for Section
        4.04), 5, 6, 9 (but only to the extent applicable to Sections
        10.01 and 12.01 of the Overlease), 10 and 11 (but only to the
        extent applicable to Sections 10.01 and 12.01 of the Overlease
        and Section 7 of this Sublease), Section 12.01 (except for the
        phrase commencing in line 20 of Section 12.01 with words
        "provided, however, that the provisions of this" and continuing
        through the end of Section 12.01), Section 12.02 (but only the
        last sentence thereof), Section 12.03 (except for the insert
        denoted by an asterisk in line 9), Articles 13, 16 (except for
        the balance of the first sentence of Section 16.01 from and after
        the comma in line 2 thereof), 17, 19, 21, 23, 24, 25, 27, 30 (but
        only to the extent applicable to Section 23 of this Sublease),
        31, 32 and 33 (except for Section 33.09).  Subtenant hereby
        assumes, and covenants and agrees to perform, all of the
        obligations of the lessee under the Overlease to the extent such
        obligations are incorporated herein by reference and relate to
        the Sublease Premises during the Term hereof.  To the extent that
        any provision in the Overlease incorporated herein by reference
        conflicts with any provisions of this Sublease, the provisions of
        this Sublease shall be controlling.  Sublandlord agrees to
        perform its obligations as tenant under the Oversublease, except
        to the extent such obligations are assumed by Subtenant
        hereunder.  Subject to Section 16 below, if for any reason the
        term of the Overlease or of the Oversublease is terminated prior
        to the expiration date of this Sublease, this Sublease shall
        thereupon terminate, and Sublandlord shall not be liable to
        Subtenant by reason thereof.

             11.  Covenants Regarding Overlease.

                  (a)  Subtenant covenants and agrees not to do or permit
        to be done any act of commission or omission which would
        constitute a violation or default under the Oversublease and/or
        the Overlease.

                  (b)  Each party hereto promptly shall deliver to the
        other party copies of all notices, requests, demands or other
        communications which relate to the Sublease Premises or the use
        or occupancy thereof after receipt of the same from Overlandlord
        or others.  

                  (c)  Sublandlord shall not incur any liability
        whatsoever to Subtenant for any injury, loss, damage (whether

                                        7PAGE
<PAGE>
        direct, consequential or incidental) or inconvenience incurred or
        suffered by Subtenant as a result of the exercise by Overlandlord
        of any of the rights reserved to Overlandlord under the
        Overlease, or as a result of the exercise by Overtenant of any of
        the rights reserved to Overtenant under the Oversublease, nor
        shall such exercise constitute a constructive eviction or default
        by Sublandlord hereunder, except to the extent, if any, such
        injury, loss, damage or inconvenience is the result of the
        negligence or willful misconduct of Sublandlord.

             12.  Representations.   Subtenant represents that it has
        made a thorough examination and inspection of the Entire Premises
        and is familiar with the condition thereof.  Subtenant hereby
        agrees that it is entering into this Sublease without any
        representations or warranties by Sublandlord, its agents,
        representatives, employees, servants, brokers or any other person
        as to the present or future condition of the Entire Premises or
        the appurtenances thereto or any improvements therein or thereon.
        It is agreed that Subtenant does and will accept the Sublease
        Premises "as is" and Sublandlord shall have no obligation to
        perform any work therein except as expressly set forth in this
        Sublease.

             13.  Assignment and Subletting.

                  (a)  Subtenant, for itself, its successors and assigns,
        expressly covenants that it shall not assign, whether by
        operation of law or otherwise, or pledge or otherwise encumber
        this Sublease, or sublet all or any part of the Sublease Premises
        without obtaining the prior written consent of Sublandlord.
        Sublandlord agrees that its consent to any proposed subletting of
        the 37,000 square foot area referenced in Section 1.1.(c) above
        shall not be unreasonably withheld, conditioned or delayed.
        Sublandlord reserves the right to transfer and assign its
        interest in and to this Sublease to any entity or person who
        shall succeed to Sublandlord's interest in and to the
        Oversublease.

                  (b)  Consent by Sublandlord to any assignment, transfer
        or subletting to any party shall not be construed as a waiver or
        release of Subtenant from the terms of any covenant or its
        primary responsibility under this Sublease, nor shall consent to
        one assignment, transfer or sublease to any person, partnership,
        firm or corporation be deemed to be a consent to any subsequent
        assignment, transfer or subletting to another person,
        partnership, firm or corporation.

             14.  Quiet Enjoyment.   Subject to the provisions of this
        Sublease, Subtenant, upon paying the Annual Fixed Rent and all
        other sums and charges herein provided, and observing and keeping
        all covenants, agreements and conditions of this Sublease on its
        part to be observed and kept, shall quietly have and enjoy the
        Sublease Premises during the Term of this Sublease.

                                        8PAGE
<PAGE>
             15.  End of Term.   If Subtenant shall remain in possession
        of the Sublease Premises or any part thereof after the expiration
        or prior termination of the Term hereof, the parties agree that
        no such holding over by Subtenant shall operate to extend or
        renew this Sublease, and that any such holding over shall be
        construed as a tenancy-at-will at two hundred percent (200%) of
        the Annual Fixed Rent (on a per diem basis) in effect when such
        holding over shall have commenced, and such tenancy shall
        otherwise be subject to all the terms, conditions, covenants and
        agreements of this Sublease.  Subtenant further agrees to pay to
        Sublandlord any additional amounts payable by Sublandlord to
        Overtenant under the Oversublease by reason of any such holding
        over by Subtenant.

             16.  Default.

                  16.1 In the event that Subtenant shall default in the
        payment of Annual Fixed Rent, additional rent or any other charge
        payable hereunder, or shall default in the performance or
        observance of any of the terms, conditions and covenants of this
        Sublease, Sublandlord, in addition to and not in limitation of
        any rights otherwise available to it, shall have the same rights
        and remedies with respect to such default as are provided to
        Overlandlord under the Overlease with respect to defaults by the
        lessee thereunder, with the same force and effect as though all
        such provisions relating to any such default or defaults were set
        forth herein in their entirety, and Subtenant shall have all of
        the obligations of the lessee under the Overlease with respect to
        such default or defaults.

                  16.2 In the event of a default by Subtenant in the
        performance of any of its non-monetary obligations hereunder,
        Sublandlord may, at its option, at any time thereafter and
        without waiving any other remedies for such default contained
        herein or in the Overlease as incorporated herein or at law or in
        equity, give written notice to Subtenant that if such default is
        not cured, or the cure not commenced, within twenty (20) days
        after receipt of such notice by Subtenant, and if so commenced is
        not thereafter pursued diligently to completion, Sublandlord may
        cure such default for the account of Subtenant, and any amount
        paid or incurred by Sublandlord in so doing shall be deemed paid
        or incurred for the account of Subtenant and Subtenant agrees
        promptly to reimburse Sublandlord therefor and save Sublandlord
        harmless therefrom; provided, however, that Sublandlord may cure
        any such default as aforesaid prior to the expiration of any
        waiting period if reasonably necessary to protect Sublandlord's
        interest under the Oversublease or to prevent injury or damage to
        persons or property.

             17.  Attornment.    Notwithstanding anything to the contrary
        contained herein, to the full extent required by Overlandlord,
        Subtenant shall attorn to Overlandlord for the duration of the
        Term of this Sublease, as the same may be extended, if the
        Overlease and Oversublease are terminated for any reason.

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<PAGE>
             18.  Notices.   Whenever, by the terms of this Sublease,
        notice, demand or other communication shall or may be given to
        either party, the same shall be in writing and addressed:

                  If to Sublandlord:

                  Thermo TerraTech Inc.
                  81 Wyman Street
                  Waltham, Massachusetts 02254
                  Attention:  President

                  With a copy to:

                  Thermo Electron Corporation
                  81 Wyman Street
                  Waltham, Massachusetts  02254
                  Attention:   General Counsel

                  If to Subtenant:

                  Holcroft L.L.C.
                  12068 Market Street
                  Livonia, Michigan 48150
                  Attention:  President

        or to such other address or addresses as shall from time to time
        be designated by written notice by either party to the other as
        herein provided.  All notices shall be sent by registered or
        certified mail, postage pre-paid and return receipt requested, or
        by Federal Express or other comparable service providing proof of
        delivery, and shall be deemed duly given and received (i) if
        mailed, on the third business day following the mailing thereof
        or (ii) if sent by courier, the date of its receipt (or if such
        day is not a business day, the next succeeding business day).

             19.  Indemnification.   Subtenant hereby agrees to
        indemnify, defend and hold harmless Sublandlord, its parent,
        subsidiaries and affiliates, and their respective officers,
        directors, shareholders and employees, from and against any and
        all claims, demands, judgments, actions, causes of action, suits,
        liabilities, damages, losses, costs and expenses (including
        without limitation reasonable attorneys' fees and disbursements
        and court costs) arising out of or in connection with (i)
        Subtenant's use and occupancy of the Sublease Premises (except to
        the extent, if any, such claims, demands, judgments, actions,
        causes of action, suits, liabilities, damages, losses, costs or
        expenses are caused by the negligence or willful misconduct of
        Sublandlord), (ii) the negligence or willful misconduct of
        Subtenant, its agents, employees, representatives or contractors,
        or (iii) the failure by Subtenant to perform, observe or fulfill
        any of Subtenant's covenants, agreements, representations or
        warranties under this Sublease.  In case any action or proceeding
        is brought against Sublandlord by reason of any of the above,

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<PAGE>
        Sublandlord shall give written notice thereof to Subtenant, and
        Subtenant may resist or defend such action or proceeding at its
        sole cost and expense with counsel reasonably acceptable to
        Sublandlord.  If Subtenant fails to resist or defend such action
        or proceeding, Sublandlord may do so or, upon not less than ten
        (10) days' notice to Subtenant, may settle or compromise the
        same, and, in such event, Subtenant shall pay to Sublandlord as
        additional rent hereunder all payments made by, and all expenses
        (including without limitation reasonable attorneys' fees and
        disbursements and court costs) incurred by, Sublandlord.

             20.  Surrender.   At the expiration or earlier termination
        of this Sublease, Subtenant shall surrender the Sublease Premises
        to Sublandlord broom clean, with all alterations, additions and
        improvements thereto, in as good condition as on the date of
        delivery of possession thereof to Subtenant or as the Sublease
        Premises may be put in during the Term hereof, reasonable wear
        and tear and damage by casualty excepted; provided, however, that
        at Sublandlord's request, Subtenant shall remove, at Subtenant's
        sole cost and expense, any and all alterations, additions and
        improvements specified by Sublandlord.  If Subtenant fails to
        remove any such alterations, additions or improvements on or
        before the later to occur of the termination of this Sublease or
        the twentieth (20th) day following such request, Sublandlord may
        remove the same and deliver the same to any place of business of
        Subtenant or any warehouse, and Subtenant shall pay the cost of
        such removal, delivery and warehousing, together with interest
        thereon at the maximum rate permitted by law, to Sublandlord upon
        demand.

             21.  Environmental Indemnification.  Subtenant agrees to
        indemnify, defend and hold harmless Sublandlord from and against
        any and all liabilities, losses, damages, suits, actions, causes
        of action, costs, expenses (including without limitation
        reasonable attorneys' fees and disbursements and court costs),
        penalties, fines, demands, judgments, claims or liens (including
        without limitation liens or claims imposed under any so-called
        "Superfund" or other environmental legislation) arising from or
        in connection with the use, storage, release or discharge by
        Subtenant of Hazardous Materials (as hereinafter defined) on the
        Sublease Premises and/or the Entire Premises.

             For purposes of this Section 20, the term "Hazardous
        Materials" shall include without limitation any petroleum
        product, any flammable, explosive or radioactive material, or any
        hazardous or toxic waste, substance or material, including
        without limitation substances defined as "hazardous substances",
        "hazardous materials," "solid waste" or "toxic substances" under
        any applicable laws relating to hazardous or toxic materials and
        substances, air pollution (including noise and odors), water
        pollution, liquid and solid waste, pesticides, drinking water,
        community and employee health, environmental land use management,
        stormwater, sediment control, nuisances, radiation, wetlands,
        endangered species, environmental permitting and petroleum

                                       11PAGE
<PAGE>
        products, which laws may include, but not be limited to, the
        Federal Insecticide, Fungicide, and Rodenticide Act, as amended;
        the Toxic Substances Control Act; the Clean Water Act; the
        National Environmental Policy Act, as amended; the Solid Waste
        Disposal Act, as amended; the Comprehensive Environmental
        Response, Compensation and Liability Act of 1980, as amended by
        the Superfund Amendments and Reauthorization Act of 1986; the
        Hazardous Materials Transportation Act, as amended; the Resource
        Conservation and Recovery Act, as amended; the Clean Air Act, as
        amended; the Emergency Planning and Community Right-to-Know Act,
        as amended; the Occupational Safety and Health Act, as amended;
        comparable state laws; and all rules and regulations promulgated
        pursuant to such laws and ordinances.

             22.  Consents.   Sublandlord's refusal to consent to or
        approve any matter or thing, whenever Sublandlord's consent or
        approval is required under this Sublease or under the Overlease
        as incorporated herein, shall be deemed reasonable if
        Overlandlord has refused or failed to give its consent to such
        matter or thing.

             23.  Option to Extend.   Provided that Subtenant shall not
        be in default of its obligations under this Sublease, Subtenant
        shall have an option to extend the Term of this Sublease for one
        (1) additional period of five (5) years (the "Renewal Period"),
        which option shall be exercisable by written notice to
        Sublandlord given no later than November 1, 2003.  Upon receipt
        of such notice, Sublandlord shall exercise its corresponding
        option to renew the Oversublease.  All of the terms, covenants
        and provisions of this Sublease shall apply to such Renewal
        Period, except that the Annual Fixed Rent payable with respect to
        such Renewal Period shall be equal to the annual Fixed Rent
        payable to Overlandlord under Article 30 of the Overlease.  In
        the event that Subtenant elects to exercise its option to extend
        under this Section 23, Subtenant shall be responsible for the
        payment of all costs payable by the lessee under Section 30.04 of
        the Overlease.  During the Renewal Period, all references in this
        Sublease to the Term shall be deemed to mean the original Term as
        extended by the Renewal Period.  Subtenant shall have no further
        right to extend the Term of this Sublease following the
        expiration of the Renewal Period.

             24.  Direct Lease.   Subtenant agrees to use its best
        efforts to negotiate the execution, on or before the second
        anniversary of the Commencement Date hereunder, of a direct lease
        by Overlandlord to Subtenant of the Entire Premises upon such
        terms as may then be commercially reasonable for leases of
        comparable properties in the Livonia, Michigan area (the "Direct
        Lease"), together with the termination of the Overlease and the
        full release of Overtenant from its obligations thereunder.  This
        Sublease shall automatically terminate upon the effective date of
        the termination of the Overlease.

             25.  Miscellaneous.

                                       12PAGE
<PAGE>
                  25.1 Governing Laws.   This Sublease shall be governed
        by and construed in accordance with the laws of the State of
        Michigan.

                  25.2 Entire Agreement.   This Sublease constitutes the
        entire agreement between Sublandlord and Subtenant with respect
        to the subject matter hereof and shall not be supplemented,
        amended, varied or modified in any manner except by an instrument
        in writing signed by both parties.

                  25.3 Waiver.   No delay or omission on the part of
        either party to this Sublease in requiring performance by the
        other party or in exercising any right hereunder shall operate as
        a waiver of any provision hereof or of any right hereunder, and
        the waiver, omission or delay in requiring performance or
        exercising any right hereunder on any one occasion shall not be
        construed as a bar to or waiver of such performance or right on
        any future occasion.

                  25.4 Remedies Cumulative.   Any and all rights and
        remedies which either party may have under this Sublease, at law
        or in equity, shall be cumulative and shall not be deemed
        inconsistent with each other, and any two or more of all such
        rights and remedies may be exercised at the same time insofar as
        permitted by law.

                  25.5 Broker.    Each of the parties hereto represents
        and warrants to the other that there are no claims for brokerage
        commissions or finder's fees in connection with this Sublease.
        Each party shall indemnify and hold harmless the other party from
        and against any and all claims for brokerage fees, commissions or
        other charges arising from the dealings of the indemnifying party
        in connection with this Sublease.   

                  25.6 Consent to Sublease.   The effectiveness of this
        Sublease is conditioned upon the prior written consent of
        Overtenant to the subletting of the Sublease Premises to
        Subtenant in accordance with the terms hereof.

                  25.7 Survival.   It is understood and agreed that the
        provisions of Sections 18 and 20 above shall survive the
        expiration or earlier termination of this Sublease.

                  25.8 Personal Property.   All furnishings, fixtures,
        equipment, effects and personal property of every kind, nature
        and description of Subtenant, and of all persons claiming by,
        through or under Subtenant, which, during the Term of this
        Sublease or any occupancy of the Sublease Premises by Subtenant,
        or anyone claiming by, through or under Subtenant, may be on the
        Sublease Premises or elsewhere in the Entire Premises, shall at
        the sole risk and hazard of Subtenant and, if the whole or any

                                       13PAGE
<PAGE>
        part thereof shall be destroyed or damaged by fire, water or
        otherwise, or by the leakage or bursting of water pipes, steam
        pipes or other pipes, by theft, or from any other cause, no part
        of said loss or damage is to be charged to or borne by
        Sublandlord except to the extent caused by the negligence or
        willful misconduct of Sublandlord, its agents, employees,
        representatives or contractors.

                  25.9 Headings.   Section headings and the organization
        of this Sublease are for descriptive purposes only and shall not
        control or alter the meaning of this Sublease.

                  25.10     Successors and Assigns.   This Sublease shall
        be binding upon and shall inure to the benefit of the parties
        hereto and their respective successors and permitted assigns.

                  25.11     Authority.   The individuals executing this
        Sublease hereby represent and warrant that they are empowered and
        duly authorized to so execute this Sublease on behalf of the
        parties they represent.

                                       14PAGE
<PAGE>
             IN WITNESS WHEREOF, the parties hereto have executed this
        Sublease under seal as of the date first set forth above.

                                           SUBLANDLORD:

                                           THERMO TERRATECH INC.

                                           By:    /s/ John P. Appleton
                                           Name:  John P. Appleton
                                           Title: Chief Executive Officer



                                           SUBTENANT:

                                           HOLCROFT L.L.C.

                                           By:    /s/ Scott M. Murray
                                           Name:  Scott M. Murray
                                           Title: President

                                       15PAGE
<PAGE>
                               CONSENT TO SUBLEASE



             Pursuant to Section 5.1 of the Oversublease attached as
        Exhibit B-2 hereto, the undersigned hereby consents to the
        subletting of the Sublease Premises described herein on the terms
        and conditions contained in the within Sublease.  The undersigned
        further agrees to perform its obligations as lessee under the
        Overlease, except to the extent the same are assumed by
        Sublandlord pursuant to the terms of the Oversublease.



                                           TMO, INC.,
                                           a Delaware corporation

                                           By:    /s/ Sandra L. Lambert

                                           Name:  Sandra L. Lambert

                                           Title: Secretary



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