THERMOQUEST CORP \DE\
10-Q, 1996-11-05
LABORATORY ANALYTICAL INSTRUMENTS
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                       SECURITIES AND EXCHANGE COMMISSION

                              Washington, DC 20549

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


                                    FORM 10-Q

    (mark one)

    [ X ] Quarterly Report Pursuant to Section 13 or 15(d) of the Securities
          Exchange Act of 1934 for the Quarter Ended September 28, 1996.

    [   ] Transition Report Pursuant to Section 13 or 15(d) of the Securities
          Exchange Act of 1934.

                         Commission File Number 1-14262


                             THERMOQUEST CORPORATION
             (Exact name of Registrant as specified in its charter)

    Delaware                                                       77-0407461
    (State or other jurisdiction of                          (I.R.S. Employer
    incorporation or organization)                        Identification No.)

    355 River Oaks Parkway
    San Jose, California                                                95134
    (Address of principal executive offices)                       (Zip Code)


       Registrant's telephone number, including area code: (617) 622-1000

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

           Indicate the number of shares outstanding of each of
           the issuer's classes of Common Stock, as of the
           latest practicable date.

                    Class                  Outstanding at October 25, 1996
         ----------------------------      -------------------------------
         Common Stock, $.01 par value                48,450,000
PAGE
<PAGE>
    PART I - FINANCIAL INFORMATION

    Item 1 - Financial Statements


                             THERMOQUEST CORPORATION

                           Consolidated Balance Sheet
                                   (Unaudited)

                                     Assets


                                                September 28,   December 30,
    (In thousands)                                       1996           1995
    ------------------------------------------------------------------------
    Current Assets:
      Cash and cash equivalents                      $159,553       $120,354
      Available-for-sale investments, at quoted
        market value (amortized cost of $7,505)         7,524              -
      Accounts receivable, less allowances of
        $4,454 and $2,341                              76,701         65,729
      Inventories:
        Raw materials and supplies                     25,939         17,970
        Work in process and finished goods             35,258         29,050
      Prepaid expenses                                  2,121          1,258
      Prepaid income taxes                              8,776          8,695
                                                     --------       --------
                                                      315,872        243,056
                                                     --------       --------

    Property, Plant and Equipment, at Cost             69,505         60,665
      Less: Accumulated depreciation and
            amortization                               17,513         17,134
                                                     --------       --------
                                                       51,992         43,531
                                                     --------       --------

    Patents and Other Assets                            4,685          5,627
                                                     --------       --------

    Cost in Excess of Net Assets of Acquired
      Companies (Note 2)                              159,870        135,828
                                                     --------       --------
                                                     $532,419       $428,042
                                                     ========       ========


                                        2PAGE
<PAGE>
                             THERMOQUEST CORPORATION

                     Consolidated Balance Sheet (continued)
                                   (Unaudited)

                    Liabilities and Shareholders' Investment


                                                September 28,  December 30,
    (In thousands except share amounts)                  1996          1995
    -----------------------------------------------------------------------
    Current Liabilities:
      Notes payable and current maturities of
        long-term obligations                        $ 20,619     $ 11,755
      Accounts payable                                 20,839       13,144
      Accrued payroll and employee benefits            14,445       10,533
      Accrued installation and warranty expenses        9,380        7,079
      Deferred revenue                                  8,800        8,417
      Customer deposits                                 9,096        6,403
      Accrued income taxes                             11,853        4,118
      Other accrued expenses                           13,924       12,077
      Due to parent company                             2,377        2,628
                                                     --------     --------
                                                      111,333       76,154
                                                     --------     --------

    Deferred Income Taxes                               5,767        5,767
                                                     --------     --------

    Accrued Pension and Other Deferred Items           17,080       11,925
                                                     --------     --------

    Long-term Obligations:
      5% Subordinated convertible debentures           96,250       96,250
      Other                                             8,581       10,206
                                                     --------     --------
                                                      104,831      106,456
                                                     --------     --------

    Shareholders' Investment (Note 3):
      Common stock, $.01 par value, 100,000,000
        shares authorized; 48,450,000 and
        45,000,000 shares issued and outstanding          485          450
      Capital in excess of par value                  261,121      213,378
      Retained earnings                                31,021       11,764
      Cumulative translation adjustment                   768        2,148
      Net unrealized gain on available-for-sale
        investments                                        13            -
                                                     --------     --------
                                                      293,408      227,740
                                                     --------     --------
                                                     $532,419     $428,042
                                                     ========     ========


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

                                        3PAGE
<PAGE>
                             THERMOQUEST CORPORATION

                        Consolidated Statement of Income
                                   (Unaudited)


                                                    Three Months Ended
                                              ------------------------------
                                              September 28,    September 30,
    (In thousands except per share amounts)            1996             1995
    ------------------------------------------------------------------------
    Revenues                                       $ 78,155         $ 58,492
                                                   --------         --------

    Costs and Operating Expenses:
      Cost of revenues                               40,395           30,055
      Selling, general and administrative
        expenses                                     20,728           15,938
      Research and development expenses               5,822            4,318
                                                   --------         --------
                                                     66,945           50,311
                                                   --------         --------

    Operating Income                                 11,210            8,181

    Interest Income                                   2,519            1,023
    Interest Expense                                 (1,902)          (1,287)
                                                   --------         --------
    Income Before Provision for Income Taxes         11,827            7,917
    Provision for Income Taxes                        5,099            3,285
                                                   --------         --------
    Net Income                                     $  6,728         $  4,632
                                                   ========         ========

    Earnings per Share                             $    .14         $    .10
                                                   ========         ========

    Weighted Average Shares                          48,450           45,187
                                                   ========         ========


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



                                        4PAGE
<PAGE>
                             THERMOQUEST CORPORATION

                        Consolidated Statement of Income
                                   (Unaudited)


                                                    Nine Months Ended
                                             -------------------------------
                                             September 28,     September 30,
    (In thousands except per share amounts)           1996              1995
    ------------------------------------------------------------------------
    Revenues                                     $227,146           $172,726
                                                 --------           --------

    Costs and Operating Expenses:
      Cost of revenues                            120,529             86,956
      Selling, general and administrative
        expenses                                   57,544             48,024
      Research and development expenses            16,605             13,106
                                                 --------           --------
                                                  194,678            148,086
                                                 --------           --------

    Operating Income                               32,468             24,640

    Interest Income                                 6,528              1,149
    Interest Expense                               (5,501)            (2,078)
                                                 --------           --------
    Income Before Provision for Income Taxes       33,495             23,711
    Provision for Income Taxes                     14,238              9,841
                                                 --------           --------
    Net Income                                   $ 19,257           $ 13,870
                                                 ========           ========

    Earnings per Share                           $    .41           $    .31
                                                 ========           ========

    Weighted Average Shares                        47,419             45,187
                                                 ========           ========


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






                                        5PAGE
<PAGE>
                             THERMOQUEST CORPORATION

                      Consolidated Statement of Cash Flows
                                   (Unaudited)


                                                    Nine Months Ended
                                             -------------------------------
                                             September 28,     September 30,
    (In thousands)                                    1996              1995
    ------------------------------------------------------------------------
    Operating Activities:
      Net income                                 $ 19,257           $ 13,870
      Adjustments to reconcile net income to net
        cash provided by operating activities:
          Depreciation and amortization             6,948              6,489
          Provision for losses on accounts
            receivable                                 56                 16
          Other noncash expenses                    1,060                809
          Changes in current accounts, excluding
            the effects of acquisitions:
              Accounts receivable                   6,110               (598)
              Inventories                          (1,908)            (4,660)
              Other current assets                   (581)            (2,162)
              Accounts payable                     (1,654)             1,611
              Other current liabilities             7,406             (9,039)
          Other                                     1,189                537
                                                 --------           --------
                  Net cash provided by
                    operating activities           37,883              6,873
                                                 --------           --------

    Investing Activities:
      Acquisitions, net of cash acquired (Note 2) (32,408)                 -
      Purchases of available-for-sale investments  (7,250)                 -
      Purchases of property, plant and equipment   (3,160)            (1,960)
      Other                                           101                190
                                                 --------           --------
                  Net cash used in
                    investing activities          (42,717)            (1,770)
                                                 --------           --------

    Financing Activities:
      Net proceeds from issuance of Company
        common stock (Note 3)                      47,778                  -
      Net proceeds from issuance of subordinated
        convertible debentures                          -             93,994
      Decrease in short-term obligations           (1,844)            (2,131)
      Repayment of long-term obligations           (1,016)              (593)
      Net transfer to parent company                    -             (3,536)
      Other                                          (143)               286
                                                 --------           --------
                  Net cash provided by
                    financing activities         $ 44,775           $ 88,020
                                                 --------           --------

                                        6PAGE
<PAGE>
                             THERMOQUEST CORPORATION

                Consolidated Statement of Cash Flows (continued)
                                   (Unaudited)


                                                    Nine Months Ended
                                             -------------------------------
                                             September 28,     September 30,
    (In thousands)                                    1996              1995
    ------------------------------------------------------------------------
    Exchange Rate Effect on Cash                 $   (742)          $  1,412
                                                 --------           --------

    Increase in Cash and Cash Equivalents          39,199             94,535
    Cash and Cash Equivalents at Beginning of
      Period                                      120,354             13,050
                                                 --------           --------
    Cash and Cash Equivalents at End of Period   $159,553           $107,585
                                                 ========           ========

    Noncash Activities (Note 2):
      Fair value of assets of acquired companies $ 69,651           $      -
      Cash paid for acquired companies            (33,148)                 -
                                                 --------           --------
        Liabilities assumed of acquired companies$ 36,503           $      -
                                                 ========           ========


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














                                        7PAGE
<PAGE>
                             THERMOQUEST CORPORATION

                   Notes to Consolidated Financial Statements

    1.   General

         The interim consolidated financial statements presented have been
    prepared by ThermoQuest Corporation (the Company) without audit and, in
    the opinion of management, reflect all adjustments of a normal recurring
    nature necessary for a fair statement of the financial position at
    September 28, 1996, the results of operations for the three- and
    nine-month periods ended September 28, 1996 and September 30, 1995, and
    the cash flows for the nine-month periods ended September 28, 1996 and
    September 30, 1995. Interim results are not necessarily indicative of
    results for a full year.

         The consolidated balance sheet presented as of December 30, 1995,
    has been derived from the consolidated financial statements that have
    been audited by the Company's independent public accountants. The
    consolidated financial statements and notes are presented as permitted by
    Form 10-Q and do not contain certain information included in the annual
    financial statements and notes of the Company. The consolidated financial
    statements and notes included herein should be read in conjunction with
    the financial statements and notes included in the Company's Registration
    Statement on Form S-1 (Reg. No. 333-00276), filed with the Securities and
    Exchange Commission.


    2.   Acquisitions

         On December 1, 1995, Thermo Instrument Systems Inc. (Thermo
    Instrument) acquired the assets of the analytical instruments division of
    Analytical Technology, Inc. (ATI). In June 1996, the Company acquired the
    Automass division of ATI from Thermo Instrument for $4.1 million in cash.
    The Automass division of ATI is a manufacturer of mass spectrometers.
    Because the Company and the Automass division of ATI were deemed for
    accounting purposes to be under control of their common majority owner,
    Thermo Instrument, the transaction has been accounted for in a manner
    similar to a pooling of interests. The results of the Automass division
    of ATI for December 1995 were not material to the Company's results,
    therefore the Company's 1995 historical financial information has not
    been restated. The Company's 1996 historical financial information has
    been restated to include the results of the Automass division of ATI from
    January 1, 1996.

         On March 29, 1996, Thermo Instrument acquired a substantial portion
    of the businesses comprising the Scientific Instruments Division of
    Fisons plc (Fisons), a wholly owned subsidiary of Rhone-Poulenc Rorer,
    Inc. In September 1996, the Company acquired two businesses formerly part
    of Fisons, CE Instruments and MassLab Instruments (MassLab), from Thermo
    Instrument for an aggregate $27.3 million in cash and the assumption of
    approximately $8.9 million in debt, subject to a post-closing adjustment
    to be negotiated with Fisons by Thermo Instrument. CE Instruments is a
    manufacturer of gas chromatographs and MassLab is a manufacturer of mass
    spectrometers. The purchase price was determined based on the net book
    value of CE Instruments and MassLab at March 29, 1996, and a pro rata

                                        8PAGE
<PAGE>
                             THERMOQUEST CORPORATION

    2.   Acquisitions (continued)

    allocation of Thermo Instrument's total cost in excess of net assets of
    acquired companies recorded in connection with the acquisition of the
    Fisons businesses. Because the Company, CE Instruments, and MassLab were
    deemed for accounting purposes to be under control of their common
    majority owner, Thermo Instrument, the transaction has been accounted for
    in a manner similar to a pooling of interests. Accordingly, the Company's
    1996 historical financial information has been restated to include the
    results of CE Instruments and MassLab from March 29, 1996, the date these
    businesses were acquired by Thermo Instrument.

         In January 1996, the Company acquired Extrel FTMS, Inc. (Extrel)
    for $1.7 million in cash. Extrel is a manufacturer of Fourier transform
    mass spectrometers. The acquisition of Extrel has been accounted for
    using the purchase method of accounting and its results of operations
    have been included in the accompanying financial statements from the date
    of acquisition.

         The cost of these acquisitions exceeded the estimated fair value of
    the acquired net assets by $26.4 million, which is being amortized over
    40 years. Allocation of the purchase price for these acquisitions was
    based on estimates of the fair value of the net assets acquired and is
    subject to adjustment upon finalization of the purchase price allocation.

         Pro forma data is not presented since these acquisitions were not
    material to the Company's results of operations and financial position.


    3.   Initial Public Offering

         In March and April 1996, the Company sold 3,450,000 shares of its
    common stock in an initial public offering at $15.00 per share for net
    proceeds of approximately $47.8 million. Following the offering, Thermo
    Instrument, a majority-owned subsidiary of Thermo Electron Corporation,
    owned 93% of the Company's outstanding common stock.


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

         Forward-looking statements, within the meaning of Section 21E of
    the Securities Exchange Act of 1934, are made throughout this
    Management's Discussion and Analysis of Financial Condition and Results
    of Operations. These statements involve a number of risks and
    uncertainties, including those detailed in Item 5 of this Quarterly
    Report on Form 10-Q.

    Overview

         The Company develops, manufactures, and sells mass spectrometers,
    liquid chromatographs, and gas chromatographs. These analytical
    instruments are used in the quantitative and qualitative chemical
    analysis of organic and inorganic compounds at ultra-trace levels of
    detection. The Company's products are used primarily by pharmaceutical

                                        9PAGE
<PAGE>
                             THERMOQUEST CORPORATION

    Overview (continued)

    companies for drug research, testing, and quality control; by
    environmental laboratories for testing water, air, and soil samples for
    compliance with environmental regulations; by chemical companies for
    research and quality control; by manufacturers for testing in certain
    industrial applications, such as the manufacture of semiconductor wafers,
    and for quality control; by food and beverage companies for quality
    control and to test for product contamination; and in forensic
    applications.

         The Company's strategy is to supplement its internal growth with
    the acquisition of complementary products and technologies. The Company
    acquired Extrel FTMS, Inc., a manufacturer of Fourier transform mass
    spectrometers, from Waters Technologies Corporation on January 19, 1996;
    the Automass division of Analytical Technology, Inc. (ATI), a
    manufacturer of mass spectrometers, from Thermo Instrument Systems Inc.
    (Thermo Instrument) effective January 1, 1996 (Note 2); and CE
    Instruments, a manufacturer of gas chromatographs, and MassLab
    Instruments (MassLab), a manufacturer of mass spectrometers, from Thermo
    Instrument effective March 29, 1996 (Note 2).

         The Company sells its products on a worldwide basis. Although the
    Company seeks to charge its customers in the same currency as its
    operating costs, the Company's financial performance and competitive
    position can be affected by currency exchange rate fluctuations affecting
    the relationship between the U.S. dollar and foreign currencies. Where
    appropriate, the Company uses forward contracts to reduce its exposure to
    currency fluctuations.

    Results of Operations

    Third Quarter 1996 Compared With Third Quarter 1995

         Revenues increased 34% to $78.2 million in the third quarter of
    1996 from $58.5 million in the third quarter of 1995 primarily as a
    result of the inclusion of $12.1 million of revenues due to the
    acquisition of CE Instruments and MassLab effective March 29, 1996
    (Note 2), an increase of $7.6 million of revenues from the Company's
    existing mass spectrometry business, and the inclusion of $1.6 million of
    revenues due to the acquisition of the Automass division of ATI effective
    January 1, 1996 (Note 2). The increase in revenues from the Company's
    existing mass spectrometry business was primarily due to the introduction
    of a new product in the first quarter of 1996. These increases were
    offset by a decrease of $2.0 million in revenues due to the strengthening
    of the U.S. dollar in relation to the Japanese yen and the German mark.

         The gross profit margin was relatively unchanged at 48.3% in the
    third quarter of 1996, compared with 48.6% in the third quarter of 1995.
    An increase in the gross profit margin at the Company's existing mass
    spectrometry business due to a shift in product mix was offset by the
    inclusion of lower-margin revenues from CE Instruments and MassLab. The

                                       10PAGE
<PAGE>
                             THERMOQUEST CORPORATION

    Third Quarter 1996 Compared With Third Quarter 1995 (continued)

    combined gross profit margin at CE Instruments and MassLab was 36% in the
    third quarter of 1996. The Company's goal is to increase the gross profit
    margin at CE Instruments and MassLab by improving product mix and
    manufacturing efficiencies, although there can be no assurance that the
    Company will be successful in these efforts.

         Selling, general and administrative expenses as a percentage of
    revenues decreased to 26.5% in the third quarter of 1996 from 27.2% in
    the third quarter of 1995 primarily due to an increase in total revenues.
    Research and development expenses as a percentage of revenues remained
    unchanged at 7.4% in 1996 and 1995.

         Interest income increased to $2.5 million in the third quarter of
    1996 from $1.0 million in the third quarter of 1995 primarily as a result
    of interest income earned on invested proceeds from the Company's initial
    public offering of common stock in March and April 1996 (Note 3) and, to
    a lesser extent, from the Company's issuance of $96.3 million principal
    amount of 5% subordinated convertible debentures in August 1995. Interest
    expense increased to $1.9 million in 1996 from $1.3 million in 1995
    primarily due to interest on the Company's 5% subordinated convertible
    debentures and the inclusion of interest expense on the debt assumed as
    part of the acquisition of CE Instruments and MassLab.

         The effective tax rate was 43.1% in the third quarter of 1996,
    compared with 41.5% in the third quarter of 1995. The effective tax rates
    exceeded the statutory federal income tax rate primarily due to the
    impact of state income taxes and the nondeductible amortization of cost
    in excess of net assets of acquired companies. The effective tax rate
    increased in 1996 from 1995 due to the Company's anticipation of its
    inability to provide a tax benefit for losses incurred at certain of its
    foreign operations.

    First Nine Months 1996 Compared With First Nine Months 1995

         Revenues increased 32% to $227.1 million in the first nine months
    of 1996 from $172.7 million in the first nine months of 1995 primarily as
    a result of the inclusion of $27.1 million of revenues due to the
    acquisition of CE Instruments and MassLab, an increase of $26.7 million
    of revenues from the Company's existing mass spectrometry business, the
    inclusion of $5.2 million of revenues due to the acquisition of the
    Automass division of ATI, and the inclusion in the first quarter of 1996
    of $2.6 million of revenues from the sale of products manufactured by
    third parties. The increase in revenues from the Company's existing mass
    spectrometry business was primarily due to the introduction of two new
    products, one in the third quarter of 1995 and another in the first
    quarter of 1996. These increases were offset by a decrease of $8.7
    million in revenues due to the strengthening of the U.S. dollar in
    relation to the Japanese yen and the German mark.


                                       11PAGE
<PAGE>
                             THERMOQUEST CORPORATION

    First Nine Months 1996 Compared With First Nine Months 1995 (continued)

         The gross profit margin decreased to 46.9% in the first nine months
    of 1996 from 49.7% in the first nine months of 1995. This decline is
    primarily due to the inclusion of lower-margin revenues from CE
    Instruments and MassLab and, to a lesser extent, the inclusion in the
    first quarter of 1996 of the sale of products manufactured by third
    parties, which had a gross profit margin of 7%. The combined gross profit
    margin at CE Instruments and MassLab was 32% from March 29, 1996 through
    September 28, 1996.

         Selling, general and administrative expenses as a percentage of
    revenues decreased to 25.3% in the first nine months of 1996 from 27.8%
    in the first nine months of 1995 primarily due to an increase in total
    revenues. Research and development expenses as a percentage of revenues
    decreased to 7.3% in 1996 from 7.6% in 1995 primarily due to an increase
    in total revenues.

         Interest income increased to $6.5 million in the first nine months
    of 1996 from $1.1 million in the first nine months of 1995 primarily as a
    result of interest income earned on invested proceeds from the Company's
    issuance of $96.3 million principal amount of 5% subordinated convertible
    debentures in August 1995 and, to a lesser extent, from the Company's
    initial public offering of common stock in March and April 1996. Interest
    expense increased to $5.5 million in 1996 from $2.1 million in 1995
    primarily due to interest on the Company's 5% subordinated convertible
    debentures.

         The effective tax rate was 42.5% in the first nine months of 1996,
    compared with 41.5% in the first nine months of 1995. The effective tax
    rates exceeded the statutory federal income tax rate due to the reasons
    discussed in the results of operations for the third quarter.

    Liquidity and Capital Resources

         Consolidated working capital was $204.5 million at September 28,
    1996, compared with $166.9 million at December 30, 1995, an increase of
    $37.6 million. Included in working capital are cash, cash equivalents,
    and available-for-sale investments of $167.1 million at September 28,
    1996, compared with $120.4 million at December 30, 1995. Cash provided by
    operating activities was $37.9 million in the first nine months of 1996.
    Accounts receivable decreased $6.1 million in the first nine months of
    1996 primarily due to improved collections at one of the Company's
    foreign subsidiaries. Other current liabilities increased $7.4 million
    primarily due to higher income taxes payable.

         The Company's investing activities used $42.7 million of cash in
    the first nine months of 1996. The Company expended $32.4 million, net of
    cash acquired, for acquisitions, including the acquisition of CE
    Instruments and MassLab from Thermo Instrument (Note 2), and $3.2 million
    for purchases of property, plant and equipment.

                                       12PAGE
<PAGE>
                             THERMOQUEST CORPORATION

    Liquidity and Capital Resources (continued)

         The Company's financing activities provided $44.8 million of cash
    in the first nine months of 1996. In March and April 1996, the Company
    sold 3,450,000 shares of its common stock in an initial public offering
    at $15.00 per share for net proceeds of approximately $47.8 million.

          During the remainder of 1996, the Company plans to expend
    approximately $0.6 million for property, plant and equipment. Although
    the Company expects to have positive cash flow from its existing
    operations, the Company anticipates it will require significant amounts
    of cash to pursue the acquisition of complementary businesses. The
    Company expects that it will finance acquisitions through a combination
    of internal funds, additional debt or equity financing from the capital
    markets, or short-term borrowings from Thermo Instrument or Thermo
    Electron Corporation (Thermo Electron), although there is no agreement
    with Thermo Instrument or Thermo Electron under which such parties are
    obligated to lend funds to the Company. The Company believes that its
    existing resources are sufficient to meet the capital requirements of its
    existing businesses for the foreseeable future.


    PART II - OTHER INFORMATION

    Item 5 - Other Information

         In connection with the "safe harbor" provisions of the Private
    Securities Litigation Reform Act of 1995, the Company wishes to caution
    readers that the following important factors, among others, in some cases
    have affected, and in the future could affect, the Company's actual
    results and could cause its actual results in 1996 and beyond to differ
    materially from those expressed in any forward-looking statements made
    by, or on behalf of, the Company.

         Competition; Technological Change and Industry Acceptance. The
    Company encounters, and expects to continue to encounter, intense
    competition in the sale of its current and future products. Some of the
    Company's competitors and potential competitors have greater resources,
    manufacturing and marketing capabilities, research and development staff,
    and production facilities than those of the Company. No assurance can be
    given that the Company's competitors will not develop products that will
    be superior to the Company's products. In addition, industry acceptance
    of new technologies developed by the Company may be slow to develop due
    to, among other things, existing regulations written specifically for
    older technologies and general unfamiliarity of users with new
    technologies.

         Risks Associated with Intellectual Property. The Company holds many
    patents relating to various aspects of its products, including a
    significant patent relating to ion trap mass spectrometers. In addition,
    the Company believes that proprietary technical know-how is critical to
    many of its products. Proprietary rights relating to the Company's
    products are protected from unauthorized use by third parties only to the
    extent that they are covered by valid and enforceable patents or are
    maintained in confidence as trade secrets. There can be no assurance that

                                       13PAGE
<PAGE>
                             THERMOQUEST CORPORATION

    Item 5 - Other Information (continued)

    any patents now or hereafter owned by the Company will afford protection
    against competitors and, in the absence of patent protection, the Company
    may be vulnerable to competitors who attempt to copy the Company's
    products or gain access to its trade secrets and know-how. Proceedings
    initiated by the Company to protect its proprietary rights could result
    in substantial costs to the Company. There can be no assurance that
    competitors of the Company will not initiate litigation to challenge the
    validity of the Company's patents, or that they will not use their
    resources to design comparable products that do not infringe the
    Company's patents. There may also be pending or issued patents of which
    the Company is not aware held by parties not affiliated with the Company
    that relate to the Company's products or technologies. The Company may
    need to acquire licenses to, or contest the validity of, any such
    patents. It is likely that significant funds would be required to contest
    the validity of any such patents. There can be no assurance that any
    license required under any such patent would be made available on
    acceptable terms or that the Company would prevail in any such contest.

         Risks Associated with Acquisition Strategy. The Company's growth
    strategy is to supplement its internal growth with the acquisition of
    businesses and technologies that complement or augment the Company's
    existing product lines. The Company has acquired certain portions of
    several businesses which have been acquired by Thermo Instrument Systems
    Inc., the Company's parent (Thermo Instrument), and may acquire
    additional businesses from Thermo Instrument in the future. Certain of
    the businesses acquired from Thermo Instrument have low levels of
    profitability and businesses that the Company may seek to acquire in the
    future may also be marginally profitable or unprofitable. In order for
    any acquired businesses to achieve the level of profitability desired by
    the Company, the Company must successfully reduce expenses and improve
    operations. No assurance can be given that the Company will be successful
    in this regard. In addition, promising acquisitions are difficult to
    identify and complete for a number of reasons, including competition
    among prospective buyers and the need for regulatory approvals, including
    antitrust approvals. There can be no assurance that the Company or Thermo
    Instrument will be able to complete pending or future acquisitions. In
    order to finance any such acquisitions, it may be necessary for the
    Company to raise additional funds either through public or private
    financings. Any equity or debt financing, if available at all, may be on
    terms which are not favorable to the Company.

         Dependence on the Pharmaceutical Industry. The largest single
    market for the Company's mass spectrometers and liquid chromatographs is
    the pharmaceutical industry. Although the Company's existing products are
    not subject to regulation by the U.S. Food and Drug Administration (the
    FDA), FDA regulations apply to the processes and production facilities
    used to manufacture pharmaceutical products. Any material change by a
    pharmaceutical company in its manufacturing process or equipment could
    necessitate additional FDA review and approval. Such requirements may
    make it more difficult for the Company to sell its products to
    pharmaceutical customers that have already applied for or obtained
    approval for production processes using different equipment and supplies.
    Any changes in the regulations that apply to the processes and production

                                       14PAGE
<PAGE>
                             THERMOQUEST CORPORATION

    Item 5 - Other Information (continued)

    facilities used to manufacture pharmaceutical products may adversely
    affect the market for the Company's products. In addition, from time to
    time as a result of industry consolidation and other factors, the
    pharmaceutical industry has reduced its capital expenditures for
    equipment such as that manufactured by the Company, and there can be no
    assurance that further changes in the pharmaceutical industry will not
    adversely affect demand for the Company's products.

         Possible Adverse Effect from Changes in Environmental Regulations.
    One of the largest markets for the Company's products is environmental
    analysis. Most air, water, and soil analysis is conducted to comply with
    Federal, state, local, and foreign environmental regulations. These
    regulations are frequently specific as to the type of technology required
    for a particular analysis and the level of detection required for that
    analysis. The Company develops, configures, and markets its products to
    meet customer needs created by existing and anticipated environmental
    regulations. These regulations may be amended or eliminated in response
    to new scientific evidence or political or economic considerations. Any
    significant change in environmental regulations could result in a
    reduction in demand for the Company's products.

         Possible Adverse Impact of Significant International Operations.
    International sales accounted for approximately 69% of the Company's
    revenues in 1995, and the Company expects that international sales will
    continue to account for a significant portion of the Company's revenues
    in the future. Sales to customers in foreign countries are subject to a
    number of risks, including the following: agreements may be difficult to
    enforce, and receivables difficult to collect through a foreign country's
    legal system; foreign customers may have longer payment cycles; and
    foreign countries could impose withholding taxes or otherwise tax the
    Company's foreign income, impose tariffs, embargoes or exchange controls
    or adopt other restrictions on foreign trade. Additionally, the U.S.
    dollar value of the Company's net sales varies with currency exchange
    rate fluctuations. Significant increases in the value of the U.S. dollar
    relative to certain foreign currencies could have a material adverse
    effect on the Company's competitive position and results of operations.


    Item 6 - Exhibits

         See Exhibit Index on the page immediately preceding exhibits.




                                       15PAGE
<PAGE>
                             THERMOQUEST CORPORATION

                                   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 as of the 5th day of
    November 1996.


                                           THERMOQUEST CORPORATION



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



                                           John N. Hatsopoulos
                                           --------------------
                                           John N. Hatsopoulos
                                           Chief Financial Officer























                                       16PAGE
<PAGE>
                             THERMOQUEST CORPORATION

                                  EXHIBIT INDEX


    Exhibit
    Number       Description of Exhibit                                 Page
    ------------------------------------------------------------------------

      2.1        Stock Purchase Agreement dated as of November 4, 1996
                 between SID Instruments Inc. and the Company.

      2.2        Stock Purchase Agreement dated as of November 4, 1996
                 among SID Instruments Inc., Thermo Instrument Systems
                 Inc., and Finnigan MAT (Nevada) Inc.

     10.1        Indemnification Agreement dated as of November 4, 1996
                 between Thermo Instrument Systems Inc. and the
                 Company.

     10.2        Stock Holdings Assistance Plan and Form of Promissory
                 Note.

     11          Statement re: Computation of earnings per share.

     27          Financial Data Schedule.


                            STOCK PURCHASE AGREEMENT

            This STOCK PURCHASE AGREEMENT (this "Agreement"), dated as
       of November 4, 1996, between Sid Instruments, Inc., a company
       registered under the laws of Delaware, U.S.A., (the "Seller)  and
       ThermoQuest Corporation, a company registered under the laws of
       Delaware, U.S.A.  (the "Buyer").

                 WHEREAS , the Buyer desires to  purchase from the Seller
       and the Seller desires  to sell to the  Buyer ,all of  the issued
       and outstanding  shares of  capital stock  of Fisons  Instruments
       S.p.A., a  company   registered  under the  laws  of Italy  which,
       subject to the Italian court approval, has changed  its corporate
       name into ThermoQuest Italia S.p.A. (the "Company") owned  by the
       Seller, upon the terms  and subject to  the conditions set  forth
       herein (the "Stock Purchase");

                 WHEREAS, the Company  is engaged in the  import, export
       and marketing of  reagents instruments  to be  used for  chemical
       analysis and other applications  as more accurately described  in
       article 5 of the Company by-laws (the "Business") and has already
       transferred its  ARL and  ELEMENTAL businesses  to Unicam  Italia
       S.p.A.;

                 NOW, THEREFORE, the parties hereto agree as follows:

                                    ARTICLE 1
                               CERTAIN DEFINITIONS

            As used  in this  Agreement, the  following  terms have  the
       following respective meanings:

       "Closing" means the consummation of the Stock Purchase.

       " Shares"  means all of the  366,671 shares of capital stock of the
       Company, par value Lit. 20,000 per share, representing all of the
       issued and outstanding share capital of the Company.

                                    ARTICLE 2
                                  SALE OF STOCK

       2.1  Stock Purchase.   On the  basis of  the representations  and
       warranties, covenants and agreements set forth herein, the Seller
       hereby sells to the  Buyer, and the  Buyer hereby purchases  from
       the Seller,  the  Shares with  all  dividend and  other  economic
       rights attached thereto,  if any,  effective as  from October  1,
       1996. The Buyer  will wire  transfer,   in immediately  available
       funds, to  the account  specified  by the  Seller  the amount  of
       $20,478,000 with respect  to the  Shares (the "Purchase  Price").
       As soon  as possible  upon  payment of  the  Purchase Price,  the
PAGE
<PAGE>
                                        2
       Seller  will   cause   (a)   its   respective   duly   authorised
       representative to (i) endorse  the Shares to the  Buyer according
       to the formalities provided by Italian Law; and (ii) deliver such
       duly endorsed Shares to the Buyer or its representatives; and (b)
       a  director  of  the  Company  to  make  an   annotation  in  the
       shareholders book  of  the  Company  of  the  Buyer  as  the  new
       shareholder of the Company.

       2.2. Price Adjustment .   The  Buyer and  Seller  acknowledge and
       agree that the Purchase Price  represents the sum of (i)  the net
       tangible assets of the Company  (assumed to be $7,095,000 ) as of
       the date of the Seller's acquisition of the Shares as part of the
       acquisition on March  29, 1996 by  the Thermo Instrument  Systems
       Inc. ("THI") and its subsidiaries of certain businesses of Fisons
       plc  (the  "Fisons  Businesses")  pursuant  to  the  Amended  and
       Restated Asset and Stock Purchase Agreement dated as of March 29,
       1996 among the  THI, Thermo Electron  Corporation and Fisons  plc
       (the "Restated Agreement"), plus  (ii) a percentage of  the total
       goodwill  associated  with  THI's   acquisition  of  the   Fisons
       Businesses equal to  the sales of  the Carlo Erba  chromatography
       business of  the  Company for  the  1994  and 1995  fiscal  years
       relative to the  total sales  of the Fisons  Businesses for  such
       years (the "CE Percentage"), plus (iii) the CE  Percentage of the
       total costs incurred  by THI in  acquiring the Fisons  Businesses
       and in restructuring  the sales and  service organization of  the
       Fisons Businesses  (the  "Restructuring  Costs") .   The parties
       acknowledge that  the purchase  price  paid by  the  THI for  the
       Fisons Businesses is subject  to a post-closing adjustment  based
       on the difference between the value of the net tangible assets of
       the Fisons Businesses as shown on the closing balance sheet dated
       as of March 29, 1996 (the "Closing Balance Sheet") and the target
       net tangible asset value provided for in the  Restated Agreement.
       In the  event of  such adjustment,  the Purchase  Price shall  be
       recalculated in  accordance  with  the  third  sentence  of  this
       paragraph to account for (A)  any adjustment in the  net tangible
       assets (other than cash) of  the Company as shown on  the Closing
       Balance Sheet  from $7,095,000, and       (B)  any adjustment  in
       total goodwill associated  with THI's  acquisition of the  Fisons
       Businesses.  In addition, the purchase price shall  be subject to
       recalculation in  accordance  with  the third  sentence  of  this
       paragraph in the event that the Restructuring Costs  incurred are
       less than $1,686,000.  If any recalculation made pursuant to this
       paragraph results in an increase in the Purchase Price, the Buyer
       shall pay the amount of such  increase to the Seller, and  if any
       such recalculation results in  a decrease in the  Purchase Price,
       the Seller shall pay  the amount of  such decrease to the  Buyer.
       Any payment made pursuant to the preceding sentence shall be made
       within ten days after the Closing Balance Sheet  has become final
       (in the  case of  an adjustment  related to  the Closing  Balance
       Sheet) and  no later  than  March 29,  1997 (in  the  case of  an
       adjustment related to the Restructuring Costs) and shall  also be
       accompanied by  interest  from  the  date  hereof  calculated  as
       provided in Section 4.1 of the Restated Agreement  which is known
       to the parties.
PAGE
<PAGE>
                                        3
                                    ARTICLE 3
                  REPRESENTATIONS AND WARRANTIES OF THE SELLER

       The Seller makes the following representations and warranties and
       acknowledges that the Buyer is relying upon  such representations
       and warranties  in connection  with  the purchase  by  it of  the
       Shares.
       3.1  Due  Incorporation.   The   Seller   and  the   Company  are
       corporations duly  constituted,  validly  existing  and  in  good
       standing under  the laws  of  their respective  jurisdictions  of
       organization.

       3.2  Approval of  Transactions .   The  Seller  has  obtained all
       necessary corporate authorizations and  approvals, and has  taken
       all actions  required  for the  execution  and delivery  of  this
       Agreement and the consummation  of the transactions  contemplated
       hereby.

       3.3  No conflict.   Neither the  execution nor  delivery of  this
       Agreement,  nor  the  consummation  of  the  transactions  herein
       contemplated, nor the fulfilment of or compliance with  the terms
       and provisions hereof will  (1) conflict with the  Certificate of
       Incorporation or  By-laws  of  the  Seller or  the  Company,  (2)
       violate any current provisions of law, administrative regulation,
       or court decree applicable  to the Seller  or the Company or  (3)
       conflict with  or  result  in  a  breach of  any  of  the  terms,
       conditions or  provisions  of  or constitute  default  under  any
       material agreement  or  instrument to  which  the Seller  or  the
       Company is a party or by which either of them is bound.

       3.4  Authorized Capital .   The  Company  has  an authorized  and
       issued capital stock of   Lit. 7,333,420,000  and all the  Shares
       have been duly and validly issued and are fully paid.

       3.5  Title to Shares. The Shares are owned by the  Seller with a
       good and valid title thereto and are free and clear of any liens,
       options, charges and encumbrances of any kind. 

                                    ARTICLE 4
                   REPRESENTATIONS AND WARRANTIES OF THE BUYER

       The Buyer makes the following representations and  warranties and
       acknowledges that the Seller is relying upon such representations
       and warranties in connection with the sale by it of the Shares.

       4.1  Due Incorporation.  The  Buyer   is   a   corporation   duly
       incorporated, validly  existing and  in good  standing under  the
       laws of Delaware, U.S.A.

       4.2  Approval of  Transactions .   The Buyer  has  obtained  all
       necessary corporate authorizations and  approvals, and has  taken
       all actions  required for  the execution  and   delivery of  this
       Agreement and the consummation  of the transactions  contemplated
PAGE
<PAGE>
                                        4
       hereby.

       4.3  No Conflict . Neither the  execution nor  delivery of  this
       Agreement,  nor  the  consummation  of  the  transactions  herein
       contemplated, nor the fulfillment of or compliance with the terms
       and provisions hereof will  (1) conflict with the  Certificate of
       Incorporation or By-laws  of the Buyer,  (2) violate any  current
       provisions of  law, administrative  regulation,  or court  decree
       applicable to  the Buyer  or (3)  conflict with  or  result in  a
       breach of  any  of the  terms,  conditions  or provisions  of  or
       constitute default under any material agreement or  instrument to
       which the Buyer is a party or by which it is bound.

                                    ARTICLE 5
                                 INDEMNIFICATION

       5.1  Indemnification  by  the  Seller . The  Seller  agrees  to
       indemnify and hold harmless the  Buyer from any and  all damages,
       losses  liabilities,  costs  and  expenses   (including,  without
       limitation, settlement costs and any reasonable legal, accounting
       or other expenses for  investigating or defending any  actions or
       threatened actions) incurred by the Buyer as a result  of (i) the
       inaccuracy of any representation or warranty contained in Section
       3 hereof; (ii) the breach by the Seller of  any provision hereof;
       or (iii)   any  third party  claim  arising  due  to  the act  of
       omissions of the Seller  or the Company  from March 29, 1996  and
       prior to the date hereof.  

       5.2  Indemnification by the Buyer.  The Buyer agrees to indemnify
       and hold harmless the  Seller from any  and all damages,  losses,
       liabilities, costs and  expenses (including, without  limitation,
       settlement costs and  any reasonable  legal, accounting or  other
       expenses for investigating or defending any actions or threatened
       actions) incurred by the Seller as a result of (i) the inaccuracy
       of any representation or warranty contained in Section  4 hereof,
       or (ii) the breach of the Buyer of any provision hereof.

       5.3  Notice of  Claim.        Whenever  any  claim  shall  arise
       indemnification hereunder, the party seeking indemnification (the
       "Indemnified Party") shall promptly  notify the other party  (the
       "Indemnifying Party")  of the  claim and,  when  known the  facts
       constituting the basis for such claim.  In the event  of any such
       claim  for  indemnification  hereunder   resulting  from  or   in
       connection with any claim or legal proceedings by  a third party,
       the notice to the Indemnifying Party shall specify, if known, the
       amount or  an estimate  of the  amount of  the liability  arising
       therefrom.  The Indemnified Party shall not settle  or compromise
       any claim by  a third party  for which  the Indemnified Party  is
       entitled to indemnification hereunder  without the prior  consent
       of the Indemnifying Party, unless suit shall have been instituted
       against the Indemnified  Party and  Indemnifying Party shall  not
       have taken control  of such  suit after  notification thereof  as
       provided in Section 6.4 of this Agreement.
PAGE
<PAGE>
                                        5
       5.4  Defense of the claim .  In connection  with any claim giving
       rise to indemnity hereunder resulting from or arising  out of any
       claim or legal proceeding by a person who is not a  party to this
       Agreement, the Indemnifying  Party at its  sole cost and  expense
       may, upon notice to the Indemnified Party, assume  the defense of
       any such claim  or legal  proceeding to the  extent permitted  by
       applicable law, if it  acknowledges to the Indemnified  Party its
       obligations to indemnify  the Indemnified  Party with respect  to
       all elements  of such  claim.   The  Indemnified  Party shall  be
       entitled to participate in (but  not control) the defense  of any
       such action, with  its counsel and  at its own  expense.  If  the
       Indemnifying Party does not assume the defense of  any such claim
       or litigation resulting therefrom  within 30 days after  the date
       the Indemnifying  Party is  notified of  such  claim pursuant  to
       paragragh 5.3  hereof,  (i)  the  Indemnified  Party  may  defend
       against such claim or litigation, after giving notice of the same
       to the Indemnifying Party,  on such terms  as are appropriate  in
       the  Indemnified  Party's  reasonable  judgemen ,  and  (ii)  the
       Indemnifying Party shall be  entitled to participate in  (but not
       control) the defense of such action, with its counsel  and at its
       own expense.

                                    ARTICLE 6
                                  MISCELLANEOUS

       6.1   Amendment-Modification-Waiver. No amendment,  modification,
       or waiver of this Agreement will be binding or  effective for any
       purpose unless it is made in writing signed by  the party against
       whom enforcement of  such amendment,  modification, or waiver  is
       sought.

       6.2  Counterparts.  This Agreement may be executed in one or more
       counterparts, all of which  will be considered  one and the  same
       agreement,  and   will  become   effective  when   one  or   more
       counterparts have been signed by each party and  delivered to the
       other party.

       6.3  Governing  Law,  Jurisdiction.       This  Agreement
       governed by and construed  in accordance with  the laws of  Italy
       without reference to the choice  of law principles thereof.   The
       Court of Milan shall have exclusive jurisdiction over any dispute
       which may arise from this Agreement.

       6.4  Notices.          Every  notice or  other  communication
       contemplated, or permitted by  this Agreement by any  party shall
       be in writing and shall be delivered either by personal delivery,
       telegram, facsimile, private courier service, or by  certified or
       registered  mail,  postage  prepaid,  return  receipt  requested,
       addressed to the party to whom intended at the following address:

                 (a)  If to the Seller, to:

                      SID INSTRUMENTS INC.
                      81 Wyman Street
PAGE
<PAGE>
                                        6
                      Waltham, MA 
                      01921 U.S.A.
                      Attention:   General Counsel
                      Telephone: 001 617 622 1000
                      Fax: 001 622 1283

            (b)  If to Buyer, to:

                      THERMOQUEST CORPORATION
                      81 Wyman Street
                      Waltham, MA 
                      01921 U.S.A.
                      Attention:   General Counsel
                      Telephone: 001 617 622 1000
                      Fax: 001 622 1283

       or at such  other address  as the intended  recipient shall  from
       time to time designate by written notice delivered  in accordance
       herewith.   Notice by  courier or  certified  or registered  mail
       shall be  effective on  the date  it is  sent.   All notices  and
       communications  required,  contemplated,  or  permitted  by  this
       Agreement to be delivered in person shall be deemed  to have been
       delivered  to  and  received  by  the  addressee,  and  shall  be
       effective,  on  the  date  of  personal  delivery.    Any  notice
       transmitted by telegram or facsimile shall be deemed to have been
       delivered  to  and  received  by  the  addressee,  and  shall  be
       effective, on the date said  notice is delivered to  the telegram
       company or facsimile operator for transmission.

       6.5   Assignment   .   No  party  hereto may  assign  its rights
       delegate its obligations under this Agreement without the written
       consent of the other party thereto.

       6.6  Burden and Benefit.  This  Agreement will be binding upon,
       and inure  to  the  benefit  of, the  parties  hereto  and  their
       respective successors and permitted assigns.

       6.7   Interpretation. Article  and Section headings contained  in
       this Agreement are inserted for convenience of reference only and
       are  not  a  part  of,  and  will  not  affect   the  meaning  or
       interpretation of,  this Agreement.    The references  herein  to
       Articles and  Sections,  unless  otherwise  indicated,  refer  to
       Articles and Sections of this Agreement.
PAGE
<PAGE>
                                        7
            IN WITNESS WHEREOF,  this Agreement has been signed by  or on
       behalf of each of the parties as of the day first above written.


       SELLER                             BUYER

       SID INSTRUMENTS, INC.              THERMOQUEST CORPORATION



       By:   Earl R. Lewis                 By:   Richard W.K. Chapman
          ------------------                 ------------------------
       Name: Earl R. Lewis                Name:  Richard W.K. Chapman
       Title: President                   Title: President





                             DATED November 4, 1996
                             ----------------------






             (1)  SID INSTRUMENTS INC.

             (2)  FINNIGAN MAT (NEVADA) INC.

             (3)  THERMO INSTRUMENT SYSTEMS INC.










                   __________________________________________

                                    AGREEMENT
                     for the sale and purchase of the whole
                         of the issued share capital of
                                 Masslab Limited

                  --------------------------------------------
PAGE
<PAGE>
        THIS AGREEMENT is made the 4th day of November 1996


        BETWEEN:


        (1)  SID INSTRUMENTS INC. (the "Vendor") a Delaware corporation
             whose principal office is at 81 Wyman Street, Waltham, MA
             02254, USA; and 


        (2)  FINNIGAN MAT (NEVADA) INC. ("the Purchaser"), a Nevada
             corporation whose principal office is 355 River Oaks
             Parkway, San Jose, CA 95134, USA; and


        (3)  THERMO INSTRUMENT SYSTEMS INC. ("Thermo"), a Delaware
             corporation whose principal office is at 81 Wyman Street,
             Waltham, MA 02254, USA


        WHEREAS:


        (A)  Masslab Limited, ("the Company") is a private company
             incorporated with limited liability in England further
             particulars of which are set out in Schedule 2. 


        (B)  The Vendor has agreed to sell and the Purchaser has agreed
             to buy the Shares (as defined) on the terms and subject to
             the conditions contained in this Agreement.


        AGREED as follows:


        1.   INTERPRETATION


        1.1  In this Agreement and the Schedules to it the following
             expressions shall, unless the context otherwise requires,
             have the following meanings:


             "the Effective Date"               29 September 1996;
PAGE
<PAGE>
             "the Shares"             the shares in the capital of

                                      the Company set out in Column (2)
                                      of Schedule 1;


        1.2  The headings in this Agreement are for ease of reference
             only and shall not be taken into account in construing this
             Agreement.  


        1.3  References to Clauses and Schedules are to clauses and
             schedules of this Agreement.


        2.   SALE AND PURCHASE


        2.1  The Vendor agrees to sell with full title guarantee, the
             Shares and the Purchaser agrees to purchase the Shares with
             effect on and from the Effective Date free from any liens,
             claims, charges, encumbrances and equities and together with
             all rights of any nature whatsoever now or after the date of
             this Agreement attaching or accruing to them. 

        2.2  The aggregate consideration for the purchase of the Shares
             shall be the sum set out in Column (3) of Schedule 1 receipt
             of which the Vendor hereby acknowledges.  The Purchaser and
             Vendor acknowledge and agree that such Consideration
             represents the sum of (i) the net tangible assets of the
             Company (assumed to be $2,597,000) as of the date of the
             Vendor's acquisition of the Shares as part of the
             acquisition on March 29, 1996 by Thermo and its subsidiaries
             of certain businesses of Fisons plc (the "Fisons
             Businesses") pursuant to the Amended and Restated Asset and
             Stock Purchase Agreement dated as of March 29, 1996 among
             Thermo, Thermo Electron Corporation and Fisons plc (the
             "Restated Agreement"), plus (ii) a percentage of the total
             goodwill associated with Thermo's acquisition of the Fisons
             Businesses equal to the sales of the Company for the 1994
             and 1995 fiscal years relative to the total sales of the
             Fisons Businesses for such years (the "Company Percentage"),
PAGE
<PAGE>
             plus (iii) the Company Percentage of the total costs
             incurred by Thermo in acquiring the Fisons Businesses and in
             restructuring the sales and service organization of the
             Fisons Businesses (the "Restructuring Costs").  The parties
             acknowledge that the purchase price paid by Thermo for the
             Fisons Businesses is subject to a post-closing adjustment
             based on the difference between the value of the net
             tangible assets of the Fisons Businesses as shown on the
             closing balance sheet dated as of March 29, 1996 (the
             "Closing Balance Sheet") and the target net tangible asset
             value provided for in the Restated Agreement.  In the event
             of any such adjustment, the Consideration shall be
             recalculated in accordance with the second sentence of this
             paragraph to account for (A) any adjustment in the net
             tangible assets (other than cash) of the Company as shown on
             the Closing Balance Sheet from $2,597,000 and (B) any
             adjustment in the total goodwill associated with Thermo's
             acquisition of the Fisons Businesses.  In addition, the
             Consideration shall be subject to recalculation in
             accordance with the fourth sentence of this paragraph in the
             event that the Restructuring Costs incurred are less than
             $532,000.  If the recalculation made pursuant to this
             paragraph results in an increase in the Consideration, the
             Purchaser shall pay the amount of such increase to the
             Vendor, and if any such recalculation results in a decrease
             in the Consideration, the Vendor shall pay the amount of
             such decrease to the Purchaser.  Any payment made pursuant
             to the preceding sentence shall be made within ten days
             after the Closing Balance Sheet has become final (in the
             case of any adjustment related to the Closing Balance Sheet)
             and no later than March 29, 1997 (in the case of an
             adjustment related to the Restructuring Costs) and shall
             also be accompanied by interest from the date hereof
             calculated as provided in Section 4.1 of the Restated
             Agreement.
PAGE
<PAGE>
        3.   FURTHER ASSURANCE


             The Vendor shall on or at any time after the date of this
             Agreement execute and do all such deeds, documents, acts and
             things as the Purchaser shall reasonably require to give
             effect to this Agreement.


        4.   WARRANTIES


        4.1  The Vendor represents, warrants and undertakes to and with
             the Purchaser in the terms contained in Schedule 3. 


        4.2  The representations, warranties and undertakings contained
             in Schedule 3 shall continue in full force and effect after
             the date of this Agreement.


        5.   COMPLETION


             Completion of the sale and purchase of the Shares shall take
             place on the date of this Agreement at such time and place
             as the parties shall agree when:


             (a)  the Vendor shall hand to the Purchaser duly executed
                  transfers in favor of the Purchaser and the share
                  certificates in respect of the Shares;


             (b)  the Vendor shall, if required, hand to the Purchaser
                  the certificate of incorporation, statutory books and
                  common seal of the Company;


             (c)  the Purchaser shall pay in cash the Consideration  in
                  accordance with Clause 2.2.
PAGE
<PAGE>
        6.   INDEMNITY


        6.1  The Vendor agrees to indemnify and hold harmless the
             Purchaser from any and all damages, losses, liabilities,
             costs and expenses (including, without limitation,
             settlement costs and any reasonable legal, accounting or
             other expenses for investigating or defending any actions or
             threatened actions) incurred by the Purchaser as a result of
             (i) the inaccuracy of any representation or warranty
             contained in Schedule 3 hereof; (ii) the breach by the
             Vendor of any provision hereof; or (iii) any third party
             claim arising due to the act of omission of the Vendor or
             the Company from March 29, 1996 and prior to the date
             hereof.


        6.2  The Purchaser agrees to indemnify and hold harmless the
             Vendor from any and all damages, losses, liabilities, costs
             and expenses (including, without limitation, settlement
             costs and any reasonable legal, accounting or other expenses
             for investigating or defending any actions or threatened
             actions) incurred by the Vendor as a result of the breach by
             the Purchaser of any provision hereof.


        6.3  Whenever any claim shall arise or indemnification under this
             Agreement, the party seeking indemnification (the
             "Indemnified Party"), shall promptly notify the other party
             (the "Indemnifying Party"), of the claim and, when known,
             the facts constituting the basis for such claim.  In the
             event of any such claim for indemnification  hereunder
             resulting from or in connection with any claim or legal
             proceedings by a third party, the notice to the Indemnifying
             Party shall specify, if known, the amount or an estimate of
             the amount of the liability arising therefrom.  The
             Indemnified Party shall not settle or compromise any claim
             by a third party for which the indemnified Party is entitled
PAGE
<PAGE>
             to indemnification hereunder without the prior consent of
             the Indemnifying Party, unless proceedings have been
             commenced against the Indemnified Party and the Indemnifying
             Party shall not have taken control of such proceedings after
             notification thereof as provided in Clause 6.4 of this
             Agreement.


        6.4  In connection with any claim giving rise to indemnity
             hereunder resulting from or arising out of a claim or legal
             proceedings by a person who is not a party to this
             Agreement, the Indemnifying Party at its sole cost and
             expense may, on notice to the Indemnified party, assume the
             defense of any such claim or legal proceedings if it
             acknowledges to the Indemnified Party its obligations to
             indemnify the Indemnified Party with respect to all elements
             of such claim.  The Indemnified Party shall be entitled to
             participate in (but not control), the defense of any such
             action, with Solicitors of its own choice and its own
             expense.  If the Indemnifying Party does not assume the
             defense of any such claim or litigation resulting therefrom
             within 30 days after the date the Indemnifying Party is
             notified of such claim pursuant to Clause 8.1 hereof, (i)
             the Indemnified Party may defend against such claim or
             litigation, after giving notice of the same to the
             Indemnifying Party, on such terms as are appropriate in the
             Indemnified Party's reasonable judgment, and (ii) the
             Indemnifying Party shall be entitled to participate in (but
             not control) the defense of such action, with Solicitors of
             its own choice and at its own expense.
PAGE
<PAGE>
        7.   GENERAL

             The provisions of this Agreement shall enure to the benefit
             of the successors and assigns of the Vendor and the
             Purchaser.


        8.   NOTICES


        8.1  A notice or other communication under or in connection with
             this Agreement shall be in writing and shall be delivered
             personally or sent by first class pre-paid recorded delivery
             post or by fax to the party due to receive the notice or
             communication, at its address set out in this Agreement or
             at such other address as either party may specify by notice
             in writing to the other.


        8.2  In the absence of evidence of earlier receipt, a notice or
             communication is deemed given:


             8.2.1     if delivered personally, when left at the address
             referred to in the introduction hereto;


             8.2.2     if sent by post, the second business day after its
             posting;

             8.2.3     if sent by fax, on completion of its transmission.


        9.   GUARANTEE


             Thermo hereby unconditionally guarantees the obligations of
        the Vendor arising under this Agreement.
PAGE
<PAGE>
        10.  GOVERNING LAW


             This Agreement shall be governed by and construed in all
             respects in accordance with English Law and the parties
             agree to submit to the exclusive jurisdiction of the English
             Courts as regards any claim or matter arising in relation to
             this Agreement.
PAGE
<PAGE>
                                   SCHEDULE 1


                     Particulars of Shares and Consideration


                (1)                  (2)                          (3)
        Name of the Company    Particulars of Shares         Consideration
        -------------------    ---------------------         -------------

        Masslab Limited      2 Ordinary Shares                $6,817,000
                             of 1 British Pound
                             Sterling each
PAGE
<PAGE>
                                   SCHEDULE 2

                           Particulars of the Company



        Date of Incorporation:             31/01/96


        Registered Office:            Pickfords Wharf
                                      Clink Street
                                      London SE1 9DG


        Number of registration:            3153082


        Authorised Share Capital:          1,000


        Issued Share Capital:              2
PAGE
<PAGE>





                                   SCHEDULE 3


        1.   The Vendor has full power and authority to enter into and
             perform its obligations under this Agreement and the signing
             of this Agreement does not violate any provision of the
             Vendor's Certificate of Incorporation.


        2.   The Vendor is a company duly incorporated under the laws of
             the State of Delaware, USA.


        3.   The execution of this Agreement, nor the consummation of the
             transaction herein contemplated, nor the fulfillment of or
             compliance with the terms and provisions hereof will breach
             any current provisions of English law nor conflict with or
             result in a breach of any of the terms, conditions or
             provisions of or constitute default under any material
             agreement or instrument to which the Vendor is a party or by
             which it is bound.
PAGE
<PAGE>

        SID INSTRUMENTS INC.



        By:  Earl R. Lewis
           -------------------
             Earl R. Lewis
             President

        FINNIGAN MAT (NEVADA) INC.



        By:  Philip L. Warren
           ----------------------
             Philip L. Warren
             President



        THERMO INSTRUMENT SYSTEMS INC.



        By:  Earl R. Lewis
           ------------------
             Earl R. Lewis
             Executive Vice President




                            INDEMNIFICATION AGREEMENT


             This Agreement is made as of November 4, 1996 between Thermo
        Instrument Systems Inc., a Delaware corporation ("THI"), and
        ThermoQuest Corporation, a Delaware corporation ("TMQ").

             WHEREAS, on March 29, 1996 THI, directly and through its
        subsidiaries, purchased certain businesses of Fisons plc (the
        "Fisons Businesses") pursuant to an Amended and Restated Asset
        and Stock Purchase Agreement dated as of such date (the "Restated
        Agreement"); and

             WHEREAS, THI and TMQ have agreed that the Masslab and CE
        Instruments Fisons Businesses (the "TMQ Businesses") shall be
        sold by THI to TMQ; and

             WHEREAS, the sale by THI, and the purchase by TMQ, of the
        TMQ Businesses shall be made pursuant to a number of purchase and
        sale agreements among subsidiaries of TMQ, THI and subsidiaries
        of THI (the "Transfer Agreements"); and

             WHEREAS, THI and TMQ desire to make certain provisions for
        (i) THI's indemnification of TMQ and its subsidiaries for certain
        liabilities of the TMQ Businesses and (ii) TMQ's indemnification
        of THI and its subsidiaries for certain liabilities of the TMQ
        Businesses.

             NOW, THEREFORE, THI and TMQ hereby agree as follows:

             1.   Indemnification.

                  (a)  THI shall indemnify and hold harmless TMQ and its
        subsidiaries from any and all damages, losses, liabilities, costs
        and expenses (including, without limitation, settlement costs and
        any reasonable legal, accounting or other expenses for
        investigating or defending any actions or threatened actions)
        incurred by TMQ or any of its subsidiaries as a result of:

                       (i)  any third party claims based on the acts or
        omissions of THI or any of its subsidiaries (including any
        subsidiaries subsequently sold to TMQ) on or after March 29, 1996
        and prior to the date hereof; or

                       (ii) the breach by THI or any of its subsidiaries
        of any representation, warranty, covenant or agreement contained
        in any of the Transfer Agreements.

                  (b)  TMQ shall indemnify and hold harmless THI and its
        subsidiaries form any and all damages, losses, liabilities, costs
        and expenses (including, without limitation, settlement costs and
        any reasonable legal, accounting or other expenses for
PAGE
<PAGE>
        investigating or defending any actions or threatened actions)
        incurred by THI or any of its subsidiaries (other than
        subsidiaries acquired by TMQ) as a result of any liability of the
        TMQ Businesses other than a liability (i) as to which TMQ and its
        subsidiaries are entitled to indemnification by THI hereunder or
        (ii) that is expressly retained by THI or any of its subsidiaries
        pursuant to any Transfer Agreement.

                  (c)  Whenever any claim shall arise for indemnification
        hereunder, the party seeking indemnification (the "Indemnified
        Party") shall promptly notify the other party (the "Indemnifying
        Party") of the claim and, when known, the facts constituting the
        basis for such claim.  In the event of any such claim for
        indemnification hereunder resulting from or in connection with
        any claim or legal proceedings by a third party, the notice to
        the Indemnifying Party shall specify, if known, the amount or an
        estimate of the amount of the liability arising therefrom.  The
        Indemnified Party shall not settle or compromise any claim by a
        third party for which the Indemnified Party is entitled to
        indemnification hereunder without the prior consent of the
        Indemnifying Party, unless suit shall have been instituted
        against the Indemnified Party and the Indemnifying Party shall
        not have taken control of such suit after notification thereof as
        provided in Section 2(d) of this Agreement.

                  (d)  In connection with any claim giving rise to
        indemnity hereunder resulting from or arising out of any claim or
        legal proceeding by a person who is not a party to this
        Agreement, the Indemnifying Party at its sole cost and expense
        may, upon notice to the Indemnified Party, assume the defense of
        any such claim or legal proceeding if it acknowledges to the
        Indemnified Party its obligations to indemnify the Indemnified
        Party with respect to all elements of such claim.  The
        Indemnified Party shall be entitled to participate in (but not
        control) the defense of any such action, with its counsel and at
        its own expense.  If the Indemnifying Party does not assume the
        defense of any such claim or litigation resulting therefrom
        within 30 days after the date the Indemnifying Party is notified
        of such claim pursuant to Paragraph 2(c) hereof, (i) the
        Indemnified Party may defend against such claim or litigation,
        after giving notice of the same to the Indemnifying Party, on
        such terms as are appropriate in the Indemnified Party's
        reasonable judgment, and (ii) the Indemnifying Party shall be
        entitled to participate in (but not control) the defense of such
        action, with its counsel and at its own expense.

             3.   Restated Agreement.  THI hereby assigns to TMQ, and TMQ
        hereby accepts and assumes, the rights and obligations of THI
        under the Restated Agreement, and any agreements or instruments
        executed by THI in connection therewith, but only to the extent
        such rights and obligations relate primarily to the TMQ
        Businesses.  In furtherance of the foregoing, TMQ may enforce, in
        its own name and in the name and on behalf of THI, any of the
        rights of THI under Section 11 of the Restated Agreement, and, if
PAGE
<PAGE>
        requested by TMQ, THI shall take such actions, at its own
        expense, as TMQ shall reasonably request in order that TMQ shall
        have the full rights and benefits granted to it under this
        Section 3.
         
             4.   Captions.  The captions and headings to the various
        sections, paragraphs and exhibits of this Agreement are for
        convenience of reference only and shall not affect or control the
        meaning or interpretation of any of the provisions of this
        Agreement.

             5.   Integration.  This Agreement contains the entire
        understanding of the parties hereto with respect to the subject
        matter contained herein.

             6.   Notice of Communication.  Any notice or other
        communication shall be in writing and shall be personally
        delivered, or sent by overnight or second day courier or by first
        class mail, return receipt requested, to the party to whom such
        notice or other communication is to be given or made at such
        party's address set forth below, or to such other address as such
        party shall designate by written notice to the other party as
        follows:

             If to THI:

                  Thermo Instrument Systems Inc.
                  c/o Thermo Electron Corporation
                  81 Wyman Street
                  P.O. Box 9046
                  Waltham, MA  02445-9046
                  Attn: General Counsel

             If to TMQ:

                  Thermo Optek Corporation
                  81 Wyman Street
                  P.O. Box 9046
                  Waltham, MA  02445-9046
                  Attn: General Counsel

        provided that any notice of change of address, and any notice or
        other communication given otherwise than as specified above shall
        be effective only upon receipt; and further that any presumption
        of receipt by the addressee shall be inoperable during the period
        of any interruption in Postal Service.

             7.   Governing Law; Assignment.  This Agreement is to be
        construed, interpreted, applied and governed in all respects in
        accordance with the laws of the Commonwealth of Massachusetts,
        without regard to its conflict of laws provisions, is to take
        effect as a sealed instrument, is binding upon and inures to the
        benefit of the parties hereto and their respect successors and
        assigns and may be canceled, modified or amended only by a
PAGE
<PAGE>
        written instrument executed by THI and TMQ.  No party hereto may
        assign its rights hereunder without prior written consent of the
        other party.
PAGE
<PAGE>
             IN WITNESS WHEREOF, the parties hereto have executed this
        Agreement as of the date and year first above written.

                                 THERMO INSTRUMENT SYSTEMS INC.



                                 By:  Earl R. Lewis
                                    -------------------------------------
                                      Earl R. Lewis
                                      Executive Vice President and Chief
                                       Operating Officer


                                 THERMOQUEST CORPORATION



                                 By:  Richard W.K. Chapman
                                    -------------------------------------
                                      Richard W.K. Chapman
                                      President





                             THERMOQUEST CORPORATION

                         STOCK HOLDINGS ASSISTANCE PLAN

        SECTION 1.   Purpose.

             The purpose of this Plan is to benefit ThermoQuest
        Corporation (the "Company") and its stockholders by encouraging
        Key Employees to acquire and maintain share ownership in the
        Company, by increasing such employees' proprietary interest in
        promoting the growth and performance of the Company and its
        subsidiaries and by providing for the implementation of the
        Guidelines.  

        SECTION 2.     Definitions.

             The following terms, when used in the Plan, shall have the
        meanings set forth below:

             Committee:   The Human Resources Committee of the Board of
        Directors of the Company as appointed from time to time.

             Common Stock:   The common stock of the Company and any
        successor thereto.

             Company:   ThermoQuest Corporation, a Delaware corporation.

             Guidelines:  The Stock Holdings Guidelines for Key Employees
        of the Company, as established by the Committee from time to
        time.

             Key Employee:   Any employee of the Company or any of its
        subsidiaries, including any officer or member of the Board of
        Directors who is also an employee, as designated by the
        Committee, and who, in the judgment of the Committee, will be in
        a position to contribute significantly to the attainment of the
        Company's strategic goals and long-term growth and prosperity.

             Loans:   Loans extended to Key Employees by the Company
        pursuant to this Plan.

             Plan:   The ThermoQuest Corporation Stock Holdings
        Assistance Plan, as amended from time to time.

        SECTION 3.     Administration.

             The Plan and the Guidelines shall be administered by the
        Committee, which shall have authority to interpret the Plan and
        the Guidelines and, subject to their provisions, to prescribe,
        amend and rescind any rules and regulations and to make all other
        determinations necessary or desirable for the administration
        thereof.  The Committee's interpretations and decisions with
        regard to the Plan and the Guidelines and such rules and
        regulations as may be established thereunder shall be final and
PAGE
<PAGE>
        conclusive.  The Committee may correct any defect or supply any
        omission or reconcile any inconsistency in the Plan or the
        Guidelines, or in any Loan in the manner and to the extent the
        Committee deems desirable to carry it into effect.  No member of
        the Committee shall be liable for any action or omission in
        connection with the Plan or the Guidelines that is made in good
        faith.

        SECTION 4.     Loans and Loan Limits.

             The Committee has determined that the provision of Loans
        from time to time to Key Employees in such amounts as to cause
        such Key Employees to comply with the Guidelines is, in the
        judgment of the Committee, reasonably expected to benefit the
        Company and authorizes the Company to extend Loans from time to
        time to Key Employees in such amounts as may be requested by such
        Key Employees in order to comply with the Guidelines.  Such Loans
        may be used solely for the purpose of acquiring Common Stock
        (other than upon the exercise of stock options or under employee
        stock purchase plans) in open market transactions or from the
        Company.

             Each Loan shall be full recourse and evidenced by a
        non-interest bearing promissory note substantially in the form
        attached hereto as Exhibit A (the "Note") and maturing in
        accordance with the provisions of Section 6 hereof, and
        containing such other terms and conditions, which are not
        inconsistent with the provisions of the Plan and the Guidelines,
        as the Committee shall determine in its sole and absolute
        discretion.

        SECTION 5.     Federal Income Tax Treatment of Loans.

             For federal income tax purposes, interest on Loans shall be
        imputed on any interest free Loan extended under the Plan.  A Key
        Employee shall be deemed to have paid the imputed interest to the
        Company and the Company shall be deemed to have paid said imputed
        interest back to the Key Employee as additional compensation.
        The deemed interest payment shall be taxable to the Company as
        income, and may be deductible to the Key Employee to the extent
        allowable under the rules relating to investment interest.  The
        deemed compensation payment to the Key Employee shall be taxable
        to the employee and deductible to the Company, but shall also be
        subject to employment taxes such as FICA and FUTA.

        SECTION 6.     Maturity of Loans.

             Each Loan to a Key Employee hereunder shall be due and
        payable on demand by the Company.  If no such demand is made,
        then each Loan shall mature and the principal thereof shall
        become due and payable in five equal annual installments
        commencing on the first anniversary date of the making of such
        Loan.  Each Loan shall also become immediately due and payable in
        full, without demand, upon  the occurrence of any of the events

                                        2PAGE
<PAGE>
        set forth in the Note; provided that the Committee may, in its
        sole and absolute discretion, authorize an extension of the time
        for repayment of a Loan upon such terms and conditions as the
        Committee may determine.









































                                        3PAGE
<PAGE>
        SECTION 7.     Amendment and Termination of the Plan.

             The Committee may from time to time alter or amend the Plan
        or the Guidelines in any respect, or terminate the Plan or the
        Guidelines at any time.  No such amendment or termination,
        however, shall alter or otherwise affect the terms and conditions
        of any Loan then outstanding to Key Employee without such Key
        Employee's written consent, except as otherwise provided herein
        or in the promissory note evidencing such Loan.

        SECTION 8.     Miscellaneous Provisions.

             (a)  No employee or other person shall have any claim or
        right to receive a Loan under the Plan, and no employee shall
        have any right to be retained in the employ of the Company due to
        his or her participation in the Plan.

             (b)  No Loan shall be made hereunder unless counsel for the
        Company shall be satisfied that such Loan will be in compliance
        with applicable federal, state and local laws.

             (c)  The expenses of the Plan shall be borne by the Company.

             (d)  The Plan shall be unfunded, and the Company shall not
        be required to establish any special or separate fund or to make
        any other segregation of assets to assure the making of any Loan
        under the Plan.

             (e)  Except as otherwise provided in Section 7 hereof, by
        accepting any Loan under the Plan, each Key Employee shall be
        conclusively deemed to have indicated his acceptance and
        ratification of, and consent to, any action taken under the Plan
        or the Guidelines by the Company, the Board of Directors of the
        Company or the Committee.

             (f)  The appropriate officers of the Company shall cause to
        be filed any reports, returns or other information regarding
        Loans hereunder, as may be required by any applicable statute,
        rule or regulation.

        SECTION 9.     Effective Date.

             The Plan and the Guidelines shall become effective upon
        approval and adoption by the Committee.




                                        4PAGE
<PAGE>
                                                          EXHIBIT A


                             THERMOQUEST CORPORATION

                                 Promissory Note



        $_________                                                       
                                                Dated:____________


             For value  received, ________________,  an individual  whose
        residence is located at _______________________ (the "Employee"),
        hereby  promises   to  pay   to  ThermoQuest   Corporation   (the
        "Company"), or assigns, ON DEMAND, but  in any case on or  before
        [insert date which is the fifth anniversary of date of  issuance]
        (the "Maturity  Date"),  the principal  sum  of [loan  amount  in
        words] ($_______), or such part  thereof as then remains  unpaid,
        without interest.  Principal shall be payable in lawful money  of
        the United States of America, in immediately available funds,  at
        the principal office of the Company or at such other place as the
        Company may  designate  from  time  to time  in  writing  to  the
        Employee. 

              Unless the Company has already made a demand for payment in
        full of this Note, the Employee  agrees to repay the Company,  on
        each of the first four anniversary  dates of the date hereof,  an
        amount equal to 20% of the initial principal amount of the  Note.
        Payment of the final 20% of  the initial principal amount, if  no
        demand has been made by the Company, shall be due and payable  on
        the Maturity Date.

             This Note may be prepaid at  any time or from time to  time,
        in whole  or  in part,  without  any  premium or  penalty.    The
        Employee acknowledges and agrees that the Company has advanced to
        the Employee the principal  amount of this  Note pursuant to  the
        Company's Stock Holdings Assistance Plan, and that all terms  and
        conditions of such Plan are incorporated herein by reference.  

             The unpaid principal amount of this Note shall be and become
        immediately due  and payable  without notice  or demand,  at  the
        option of  the  Company,  upon  the  occurrence  of  any  of  the
        following events:

                  (a)  the termination of the Employee's employment  with
             the Company, with or without cause, for any reason or for no
             reason;

                  (b)  the death or disability of the Employee;

                  (c)  the failure  of the  Employee to  pay his  or  her
             debts as they  become due, the  insolvency of the  Employee,

                                        5PAGE
<PAGE>
             the filing by or against the Employee of any petition  under
             the United  States Bankruptcy  Code (or  the filing  of  any
             similar  petition   under   the  insolvency   law   of   any
             jurisdiction),  or  the  making   by  the  Employee  of   an
             assignment or trust mortgage for the benefit of creditors or
             the appointment of  a receiver, custodian  or similar  agent
             with respect  to,  or  the  taking by  any  such  person  of
             possession of, any property of the Employee; or

                  (d)  the issuance of any writ of attachment, by trustee
             process or otherwise, or any restraining order or injunction
             not removed, repealed or  dismissed within thirty (30)  days
             of issuance, against or affecting the person or property  of
             the Employee or any liability or obligation of the  Employee
             to the Company.

             In case any payment  herein provided for  shall not be  paid
        when due,  the Employee  further  promises to  pay all  costs  of
        collection, including all reasonable attorneys' fees.

             No  delay  or  omission  on  the  part  of  the  Company  in
        exercising any right hereunder shall operate as a waiver of  such
        right or of any other right of the Company, nor shall any  delay,
        omission or waiver  on any  one occasion be  deemed a  bar to  or
        waiver of the  same or any  other right on  any future  occasion.
        The  Employee  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 undersigned hereby assents to  any
        indulgence  and  any  extension  of  time  for  payment  of   any
        indebtedness  evidenced  hereby  granted  or  permitted  by   the
        Company.  

             This Note  has been  made pursuant  to the  Company's  Stock
        Holdings Assistance Plan and shall  be governed by and  construed
        in accordance  with, such  Plan  and the  laws  of the  State  of
        Delaware and shall have the effect of a sealed instrument.


                                      _______________________________

                                      Employee Name: _________________


        ________________________
        Witness




                                                                    Exhibit 11
                             THERMOQUEST CORPORATION

                        Computation of Earnings per Share

                                                   Three Months Ended
                                           ----------------------------------
                                           September 28,        September 30,
                                                    1996                 1995
   --------------------------------------------------------------------------
   Computation of Primary Earnings
     per Share:

   Net Income (a)                            $ 6,728,000          $ 4,632,000
                                             -----------          -----------

   Shares:
     Weighted average shares outstanding      48,450,000           45,000,000

     Add: Shares issuable from assumed
          exercise of options (as
          determined by the application
          of the treasury stock method)                -              187,320
                                             -----------          -----------
     Weighted average shares outstanding,
       as adjusted (b)                        48,450,000           45,187,320
                                             -----------          -----------
   Primary Earnings per Share (a) / (b)      $       .14          $       .10
                                             ===========          ===========
PAGE
<PAGE>
                             THERMOQUEST CORPORATION

                  Computation of Earnings per Share (continued)

                                                    Nine Months Ended
                                           ----------------------------------
                                           September 28,        September 30,
                                                    1996                 1995
   --------------------------------------------------------------------------
   Computation of Primary Earnings
     per Share:

   Net Income (a)                            $19,257,000          $13,870,000
                                             -----------          -----------

   Shares:
     Weighted average shares outstanding      47,418,681           45,000,000

     Add: Shares issuable from assumed
          exercise of options (as
          determined by the application
          of the treasury stock method)                -              187,320
                                             -----------          -----------
     Weighted average shares outstanding,
       as adjusted (b)                        47,418,681           45,187,320
                                             -----------          -----------
   Primary Earnings per Share (a) / (b)      $       .41          $       .31
                                             ===========          ===========


<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THERMOQUEST
CORP.'S QUARTERLY REPORT ON FORM 10-Q FOR THE QUARTER ENDED SEPTEMBER 28, 1996
AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-28-1996
<PERIOD-END>                               SEP-28-1996
<CASH>                                         159,553
<SECURITIES>                                     7,524
<RECEIVABLES>                                   81,155
<ALLOWANCES>                                     4,454
<INVENTORY>                                     61,197
<CURRENT-ASSETS>                               315,872
<PP&E>                                          69,505
<DEPRECIATION>                                  17,513
<TOTAL-ASSETS>                                 532,419
<CURRENT-LIABILITIES>                          111,333
<BONDS>                                        104,831
                                0
                                          0
<COMMON>                                           485
<OTHER-SE>                                     292,923
<TOTAL-LIABILITY-AND-EQUITY>                   532,419
<SALES>                                        227,146
<TOTAL-REVENUES>                               227,146
<CGS>                                          120,529
<TOTAL-COSTS>                                  120,529
<OTHER-EXPENSES>                                16,605
<LOSS-PROVISION>                                    56
<INTEREST-EXPENSE>                               5,501
<INCOME-PRETAX>                                 33,495
<INCOME-TAX>                                    14,238
<INCOME-CONTINUING>                             19,257
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    19,257
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