THERMO BIOANALYSIS CORP /DE
10-Q, 1997-05-06
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 March 29, 1997.

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

                         Commission File Number 1-14262


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

    Delaware                                                       85-0429899
    (State or other jurisdiction of                          (I.R.S. Employer
    incorporation or organization)                        Identification No.)

    504 Airport Road
    Santa Fe, New Mexico                                           87504-2108
    (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 April 25, 1997
         ----------------------------      -----------------------------
         Common Stock, $.01 par value                 9,771,500
PAGE
<PAGE>
   PART I - FINANCIAL INFORMATION

   Item 1 - Financial Statements


                         THERMO BIOANALYSIS CORPORATION

                           Consolidated Balance Sheet
                                   (Unaudited)

                                     Assets


                                                      March 29,   December 28,
   (In thousands)                                          1997           1996
   ---------------------------------------------------------------------------
   Current Assets:
     Cash and cash equivalents                        $ 59,190       $ 45,476
     Accounts receivable, less allowances of
       $2,043 and $991                                  24,828         17,265
     Inventories:
       Raw materials and supplies                       13,918          7,473
       Work in process                                   3,491          1,064
       Finished goods                                   12,196          6,055
     Prepaid income taxes                                3,549          2,319
     Prepaid expenses and other current assets           4,343            618
     Due from parent company and affiliates                  -            965
                                                      --------       --------
                                                       121,515         81,235
                                                      --------       --------

   Property, Plant, and Equipment, at Cost              24,134         12,129

     Less: Accumulated depreciation and amortization     6,834          6,582
                                                      --------       --------
                                                        17,300          5,547
                                                      --------       --------
   Other Assets                                          2,585          3,098
                                                      --------       --------
   Cost in Excess of Net Assets of Acquired
     Companies (Note 2)                                103,978         33,117
                                                      --------       --------
                                                      $245,378       $122,997
                                                      ========       ========






                                        2PAGE
<PAGE>
                         THERMO BIOANALYSIS CORPORATION

                     Consolidated Balance Sheet (continued)
                                   (Unaudited)

                    Liabilities and Shareholders' Investment


                                                     March 29,  December 28,
   (In thousands except share amounts)                    1997          1996
   -------------------------------------------------------------------------
   Current Liabilities:
     Accounts payable                                 $  8,583      $  4,282
     Accrued payroll and employee benefits               5,540         2,616
     Accrued income taxes                                5,572         2,775
     Accrued acquisition expenses (Note 2)               5,061         1,857
     Other accrued expenses                              9,285         5,794
     Deferred revenue                                    4,656         4,161
     Due to parent company and affiliates (Note 2)      36,568             -
                                                      --------      --------
                                                        75,265        21,485
                                                      --------      --------
   Deferred Income Taxes                                   196           196
                                                      --------      --------
   Long-term Payable to Parent Company (Note 2)         50,000             -
                                                      --------      --------
   Subordinated Convertible Note, Due to Parent
     Company                                            50,000        50,000
                                                      --------      --------

   Shareholders' Investment:
     Common stock, $.01 par value, 25,000,000
       shares authorized; 11,071,500 and 9,771,500
       shares issued and outstanding (Note 2)              111            98
     Capital in excess of par value                     64,737        47,882
     Retained earnings                                   3,165         1,707
     Cumulative translation adjustment                   1,904         1,629
                                                      --------      --------
                                                        69,917        51,316
                                                      --------      --------
                                                      $245,378      $122,997
                                                      ========      ========


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




                                        3PAGE
<PAGE>
                         THERMO BIOANALYSIS CORPORATION

                      Consolidated Statement of Operations
                                   (Unaudited)


                                                        Three Months Ended
                                                     ------------------------
                                                     March 29,      March 30,
   (In thousands except per share amounts)                1997           1996
   --------------------------------------------------------------------------
   Revenues                                           $23,382        $10,911
                                                      -------        -------
   Costs and Operating Expenses:
     Cost of revenues                                  11,899          6,716
     Selling, general, and administrative expenses      7,033          2,812
     Research and development expenses                  2,191            664
     Write-off of acquired technology                       -          3,500
                                                      -------        -------
                                                       21,123         13,692
                                                      -------        -------

   Operating Income (Loss)                              2,259         (2,781)

   Interest Income                                        697            172
   Interest Expense, Related Party                       (678)          (247)
                                                      -------        -------
   Income (Loss) Before Provision for Income Taxes      2,278         (2,856)
   Provision for Income Taxes                             820            258
                                                      -------        -------
   Net Income (Loss)                                  $ 1,458        $(3,114)
                                                      =======        =======
   Earnings (Loss) per Share                          $   .15        $  (.38)
                                                      =======        =======
   Weighted Average Shares                             10,029          8,219
                                                      =======        =======


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






                                        4PAGE
<PAGE>
                         THERMO BIOANALYSIS CORPORATION

                      Consolidated Statement of Cash Flows
                                   (Unaudited)


                                                       Three Months Ended
                                                    ------------------------
                                                    March 29,      March 30,
   (In thousands)                                        1997           1996
   -------------------------------------------------------------------------
   Operating Activities:
     Net income (loss)                               $  1,458       $ (3,114)
     Adjustments to reconcile net income (loss) to
       net cash provided by operating activities:
         Depreciation and amortization                    971            353
         Provision for losses on accounts
           receivable                                       -             22
         Write-off of acquired technology                   -          3,500
         Changes in current accounts, excluding
           the effects of acquisitions:
             Accounts receivable                          327           (859)
             Inventories                                  303          1,134
             Other current assets                        (128)           365
             Accounts payable                            (192)         2,300
             Other current liabilities                   (679)         1,534
             Other                                        148              -
                                                     --------       --------
   Net cash provided by operating activities            2,208          5,235
                                                     --------       --------
   Investing Activities:
     Acquisitions, net of cash acquired                     -        (42,780)
     Cash acquired through acquisition (Note 2)        11,026              -
     Adjustment to acquisition purchase price             205              -
     Purchases of property, plant, and equipment         (457)           (83)
     Other                                                  -           (171)
                                                     --------       --------
   Net cash provided by (used in) investing
     activities                                        10,774        (43,034)
                                                     --------       --------
   Financing Activities:
     Proceeds from issuance of note payable to
       Thermo Electron                                      -         30,000
                                                     --------       --------
   Net cash provided by financing activities         $      -       $ 30,000
                                                     --------       --------





                                        5PAGE
<PAGE>
                         THERMO BIOANALYSIS CORPORATION

                Consolidated Statement of Cash Flows (continued)
                                   (Unaudited)


                                                       Three Months Ended
                                                    ------------------------
                                                    March 29,      March 30,
   (In thousands)                                        1997           1996
   -------------------------------------------------------------------------
   Exchange Rate Effect on Cash                      $    732       $     13
                                                     --------       --------
   Increase (Decrease) in Cash and Cash Equivalents    13,714         (7,786)
   Cash and Cash Equivalents at Beginning of
     Period                                            45,476         17,747
                                                     --------       --------
   Cash and Cash Equivalents at End of Period        $ 59,190       $  9,961
                                                     ========       ========

   Noncash Activities:
     Fair value of assets of acquired companies,
       including cash acquired of $11,026 in
       1997 (Note 2)                                 $121,369       $ 66,694
     Cash paid for acquired companies                       -        (51,780)
     Issuance of Company common stock                 (16,868)             -
     Amount payable to parent company                 (85,583)             -
                                                     --------       --------
       Liabilities assumed of acquired companies     $ 18,918       $ 14,914
                                                     ========       ========


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









                                        6PAGE
<PAGE>
                         THERMO BIOANALYSIS CORPORATION

                   Notes to Consolidated Financial Statements

    1.   General

        The interim consolidated financial statements presented have been
    prepared by Thermo BioAnalysis 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 March 29, 1997, the results of operations for the three-month periods
    ended March 29, 1997, and March 30, 1996, and the cash flows for the
    three-month periods ended March 29, 1997, and March 30, 1996. Interim
    results are not necessarily indicative of results for a full year.

        The consolidated balance sheet presented as of December 28, 1996, 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 Annual
    Report on Form 10-K for the fiscal year ended December 28, 1996, filed
    with the Securities and Exchange Commission.

    2.  Acquisition

        In March 1997, Thermo Instrument Systems Inc. (Thermo Instrument)
    acquired approximately 95% of the outstanding shares of Life Sciences
    International PLC (LSI), a London Stock Exchange-listed company, in
    completion of Thermo Instrument's offer to acquire all of the outstanding
    shares of LSI. On May 6, 1997, the Company agreed to acquire LSI
    Labsystems and Hybaid, which comprised the Biosystems Group of LSI, from
    Thermo Instrument. LSI Labsystems, based in Finland, manufactures
    microplate-based immunoassay instruments and liquid-handling equipment.
    Hybaid, based in the U.K., manufactures thermal cyclers and consumables
    for DNA amplification. The combined businesses had 1996 revenues of
    approximately $71 million and were profitable. The aggregate purchase
    price for LSI Labsystems and Hybaid is approximately $102.5 million,
    which consists of: a) approximately $91.5 million for the net operating
    assets of the acquired businesses; plus b) $11.0 million for an
    equivalent amount of cash held by the acquired businesses. The purchase
    price for the net operating assets represents the sum of an estimate of
    the net tangible book value, exclusive of cash, of the businesses, plus a
    percentage of Thermo Instrument's total goodwill associated with its
    acquisition of LSI, based on the aggregate 1996 revenues of LSI
    Labsystems and Hybaid relative to LSI's 1996 consolidated revenues. The
    purchase price is subject to a post-closing adjustment based on final
    determination of the net tangible book value, exclusive of cash, of the
    acquired businesses and a final calculation of Thermo Instrument's total
    goodwill associated with the acquisition of LSI.

        The aggregate purchase price of $102.5 million will be paid through
    the issuance of 1,300,000 shares of Company common stock valued at $16.9
    million and debt to Thermo Instrument totaling $85.6 million. Issuance of

                                        7PAGE
<PAGE>
                         THERMO BIOANALYSIS CORPORATION

    2.  Acquisition (continued)

    the common stock component of the purchase price will occur immediately
    after the listing upon the American Stock Exchange of the 1,300,000
    shares of Company common stock issuable to Thermo Instrument, which will
    require approval by the Company's shareholders. Because Thermo Instrument
    is the Company's majority shareholder and intends to vote its shares in
    favor of such listing, the approval is assured.

        Because the Company, LSI Labsystems, and Hybaid 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 accompanying
    financial statements include the results of LSI Labsystems and Hybaid
    from March 12, 1997, the date these businesses were acquired by Thermo
    Instrument, and the shares issuable subject to shareholder vote have been
    deemed outstanding from that date. Of the total $85.6 million debt
    component of the purchase price, Thermo Instrument has agreed not to seek
    repayment of at least $50 million until July 15, 1998, which amount has
    been classified as long-term in the accompanying 1997 balance sheet. The
    remaining $35.6 million is classified as a current payable to Thermo
    Instrument in the accompanying 1997 balance sheet.

        In connection with the acquisition of LSI Labsystems and Hybaid, the
    Company has recorded approximately $71.0 million of cost in excess of net
    assets of acquired companies, which is being amortized over 40 years.

        Based on unaudited data, the following table presents selected
    financial information of the Company, LSI Labsystems, and Hybaid on a pro
    forma basis, assuming the companies had been combined since the beginning
    of 1996:

                                                       Three Months Ended
                                                    ------------------------
                                                    March 29,     March 30,
    (In thousands except per share amounts)              1997          1996
    ------------------------------------------------------------------------
    Revenues                                          $34,518       $26,676
    Net loss                                           (1,765)       (4,360)
    Loss per share                                       (.16)         (.46)

        The pro forma results are not necessarily indicative of future
    operations or the actual results that would have occurred had the
    acquisitions of LSI Labsystems and Hybaid been made at the beginning of
    1996.

        In connection with the acquisition of LSI Labsystems and Hybaid, the
    Company is in the process of restructuring the acquired businesses. This
    restructuring is expected to include reductions in staffing levels,
    abandonment of excess facilities, and possible other costs associated
    with exiting certain activities of the acquired businesses. In accordance
    with the requirements of Emerging Issues Task Force Pronouncement (EITF)
    95-3, as part of the cost of the acquisition, the Company has established
    reserves totaling $3.2 million for estimated severance, excess  

                                        8PAGE
<PAGE>
                         THERMO BIOANALYSIS CORPORATION

    2.  Acquisition (continued)

    facilities, and other exit costs, none of which was expended during the
    first quarter of 1997. Unresolved matters at March 29, 1997, included
    identifying specific employees for termination and locations to be
    abandoned or consolidated, among other decisions concerning the
    integration of the acquired businesses into the Company. In accordance
    with EITF 95-3, finalization of the Company's plan for restructuring the
    acquired businesses will not occur beyond one year from the date of the
    acquisition. Any changes in estimates of these costs prior to such
    finalization will be recorded as adjustments to cost in excess of net
    assets of acquired companies.

        In addition to the restructuring activities described above, during
    1996 the Company had undertaken a restructuring in connection with its
    February 1996 acquisition of DYNEX Technologies (DYNEX). The Company
    finalized its restructuring plan for DYNEX in 1996 and, as of March 29,
    1997, had a remaining reserve for the restructuring of DYNEX of $1.2
    million, which represents ongoing severance and abandoned facility
    payments. Amounts expended for these matters during the first quarter of
    1997 were not material. As of March 29, 1997, the Company had total
    restructuring reserves of $5.1 million for all its acquisitions.

    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 Operation.
    For this purpose, any statements contained herein that are not statements
    of historical fact may be deemed to be forward-looking statements.
    Without limiting the foregoing, the words "believes," "anticipates,"
    "plans," "expects," "seeks," "estimates," and similar expressions are
    intended to identify forward-looking statements. There are a number of
    important factors that could cause the results of the Company to differ
    materially from those indicated by such "Forward-looking Statements" in
    Exhibit 13 to the Company's Annual Report on Form 10-K for the fiscal
    year ended December 28, 1996, filed with the Securities and Exchange
    Commission.

    Overview
        The Company has three principal product lines: life sciences
    instrumentation, information management systems, and health physics
    instrumentation. The Company's life sciences instrumentation group
    produces a broad range of instruments and consumables based on
    proprietary immunoassay, optical biosensor, polymerase chain reaction
    (PCR), liquid-handling, mass spectrometry, and CE technologies. These
    products are designed, manufactured, and marketed by the Company's DYNEX
    Technologies (DYNEX), Affinity Sensors, LSI Labsystems, Hybaid, and
    MALDI-TOF mass spectrometer subsidiaries and its capillary
    electrophoresis (CE) division. The Company's LabSystems subsidiary
    designs, implements, and supports laboratory information management
    systems (LIMS) and chromatography data systems. The Company's Eberline
    health physics division supplies radiation detection and counting

                                        9PAGE
<PAGE>
                         THERMO BIOANALYSIS CORPORATION

    Overview (continued)

    instrumentation and sophisticated radiation monitoring systems to the
    nuclear industry worldwide.

        The Company's strategy is to develop and market a portfolio of
    instruments and information management systems for biochemistry and other
    applications through the acquisition of complementary businesses and
    technologies and through research and development of innovative products.
    The Company was incorporated in February 1995. Since then, it acquired
    DYNEX in February 1996, acquired Affinity Sensors and LabSystems
    effective March 29, 1996, and agreed to acquire the Biosystems Group of
    Life Sciences International (LSI) effective March 12, 1997 (Note 2).

        The Company sells its products on a worldwide basis. Although the
    Company generally 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. Where
    appropriate, the Company uses forward contracts to reduce its exposure to
    currency fluctuations.

    Results of Operations

    First Quarter 1997 Compared With First Quarter 1996

        Revenues increased to $23.4 million in the first quarter of 1997 from
    $10.9 million in the first quarter of 1996, primarily due to the
    inclusion of $12.9 million of revenues from LabSystems and Affinity
    Sensors, which were acquired effective March 29, 1996, the Biosystems
    Group of LSI, which was acquired effective March 12, 1997, and a full
    quarter of revenues from DYNEX, acquired in February 1996.

        The gross profit margin increased to 49% in the first quarter of 1997
    from 38% in the first quarter of 1996, primarily due to the inclusion of
    higher-margin revenues at LabSystems and the Biosystems Group of LSI and,
    to a lesser extent, at Affinity Sensors and DYNEX.

        Selling, general, and administrative expenses as a percentage of
    revenues increased to 30% in the first quarter of 1997 from 26% in the
    first quarter of 1996, primarily due to higher costs as a percentage of
    revenues at DYNEX and, to a lesser extent, at Affinity Sensors and
    LabSystems. This increase was offset in part by lower costs as a
    percentage of revenues at the Biosystems Group of LSI. 

        Research and development expenses increased to $2.2 million in the
    first quarter of 1997 from $0.7 million in the first quarter of 1996,
    primarily due to the inclusion of research and development expenses at
    acquired businesses.

        During the first quarter of 1996, the Company wrote off $3.5 million
    of acquired technology in connection with the acquisitions of Affinity
    Sensors and LabSystems.

                                       10PAGE
<PAGE>
                         THERMO BIOANALYSIS CORPORATION

    First Quarter 1997 Compared With First Quarter 1996 (continued)

        Interest income increased to $0.7 million in the first quarter of
    1997 from $0.2 million in the first quarter of 1996, primarily due to
    interest income earned on invested proceeds from the Company's initial
    public offering of common stock in September and October 1996. Interest
    expense, related party, in the first quarter of 1997 represents interest
    associated with a $50.0 million principal amount subordinated convertible
    note issued to Thermo Instrument in July 1996, and in the first quarter
    of 1996 represents interest associated with a $30.0 million promissory
    note issued to Thermo Electron Corporation (Thermo Electron) in February
    1996, which was repaid in July 1996. The Company anticipates that
    interest expense will increase as a result of debt to Thermo Instrument
    associated with the acquisition of the Biosystems Group of LSI (Note 2).

        The effective tax rate was 36% in the first quarter of 1997, compared
    with 40% in the first quarter of 1996, excluding the effect of the 1996
    write-off of acquired technology associated with the acquisitions of
    U.K.-based Affinity Sensors and LabSystems, for which no tax benefit was
    recorded. These rates exceed the statutory federal income tax rate
    primarily due to the impact of state income taxes. The effective tax rate
    decreased in the first quarter of 1997 primarily due to income from
    certain newly acquired foreign companies, which are subject to lower tax
    rates.

    Liquidity and Capital Resources

        Consolidated working capital was $46.3 million as of March 29, 1997,
    compared with $59.8 million as of December 28, 1996. The decrease in
    working capital primarily relates to the effect of the acquisition of the
    Biosystems Group of LSI (Note 2). Included in working capital are cash
    and cash equivalents of $59.2 million as of March 29, 1997, compared with
    $45.5 million as of December 28, 1996. During the first quarter of 1997,
    $2.2 million of cash was provided by operating activities.

        Investing activities provided $10.8 million in cash during the first
    quarter of 1997. In May 1997, the Company agreed to purchase the
    Biosystems Group of LSI from Thermo Instrument for approximately $102.5
    million, which consists of: a) approximately $91.5 million for the net
    operating assets of the acquired businesses; plus b) $11.0 million for an
    equivalent amount of cash held by the acquired businesses (Note 2). The
    Company expended $0.5 million for purchases of property, plant, and
    equipment, and expects to make additional capital expenditures of
    approximately $3.8 million during the remainder of 1997.

        Although the Company expects to have positive cash flow from its
    existing operations, the Company anticipates it will require significant
    amounts of cash for the possible acquisition of complementary businesses
    and technologies. The Company expects that it will finance these
    acquisitions through a combination of internal funds, additional debt or
    equity financing, and/or short-term borrowings from Thermo Instrument or
    Thermo Electron, although there is no agreement with these companies to  
    ensure that funds will be available on acceptable terms or at all. The

                                       11PAGE
<PAGE>
                         THERMO BIOANALYSIS CORPORATION

    Liquidity and Capital Resources (continued)

    Company believes that its existing resources are sufficient to meet the
    capital requirements of its existing businesses for the foreseeable
    future.


    Item 6 - Exhibits

        See Exhibit Index on the page immediately preceding exhibits.























                                       12PAGE
<PAGE>
                         THERMO BIOANALYSIS 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 6th day of May 1997.

                                           THERMO BIOANALYSIS CORPORATION



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



                                           John N. Hatsopoulos
                                           ---------------------------
                                           John N. Hatsopoulos
                                           Vice President and Chief
                                             Financial Officer














                                       13PAGE
<PAGE>
                         THERMO BIOANALYSIS CORPORATION

                                  EXHIBIT INDEX


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

       2         Share Purchase Agreement dated as of May 6, 1997, among the
                 Company, Thermo Instrument Systems Inc., and Life Sciences
                 International PLC.

      11         Statement re: Computation of Earnings per Share.

      27         Financial Data Schedule.
 












                                                              
                                                        Exhibit 2










                            SHARE PURCHASE AGREEMENT

                                     BETWEEN

                         THERMO BIOANALYSIS CORPORATION

                                       AND

                         THERMO INSTRUMENT SYSTEMS INC.


                          _____________________________

                             Dated as of May 6, 1997
                          _____________________________









PAGE
<PAGE>
                            SHARE PURCHASE AGREEMENT


             THIS SHARE PURCHASE AGREEMENT (this "Agreement") dated as of
        May 6, 1997 is between Thermo BioAnalysis Corporation ("TBA"), a
        Delaware corporation, and Thermo Instrument Systems Inc. ("THI"),
        a Delaware corporation.

                              Preliminary Statement

             1.   Life Sciences International PLC ("LSI"), which is a
        majority-owned subsidiary of THI, owns, directly or through
        wholly-owned subsidiaries, all of the issued and outstanding
        shares (the "Hybaid Shares") of Hybaid Limited ("Hybaid"), a
        private limited company organized under the laws of the United
        Kingdom,  all of the issued and outstanding shares (the
        "Labsystems Shares") of Labsystems OY ("Labsystems"), a company
        organized under the laws of Finland; all of the issued and
        outstanding shares (the "Benelux Shares") of Life Sciences
        International (Benelux) B.V. ("LSI BV"), a company organized
        under the laws of the Netherlands; all of the issued and
        outstanding shares (the "Sweden Shares") of Labsystems Sweden AB
        ("AB"), a company organized under the laws of Sweden; and all of
        the issued and outstanding shares (the "Spain Shares") of
        Labsystems Espana SA ("SA"), a company organized under the laws
        of Spain.  The Hybaid Shares, Labsystems Shares, Benelux Shares,
        Sweden Shares and Spain Shares are referred to collectively as
        the "Shares".  THI, LSI and those of LSI's wholly-owned
        subsidiaries that own Shares are referred to individually as a
        "Seller" and collectively as the "Sellers".  Hybaid, Labsystems,
        LSI BV, AB and SA are referred to collectively as the "Companies"
        and individually as a "Company".

             2.   TBA desires to purchase, or cause its wholly-owned
        subsidiaries to purchase, and THI desires to sell, or to cause
        its subsidiaries to sell, the Shares for the consideration set
        forth below, subject to the terms and conditions of this
        Agreement.

             NOW THEREFORE, in consideration of the mutual promises
        hereinafter set forth and other good and valuable consideration,
        the receipt of which is hereby acknowledged, the parties hereby
        agree as follows:

        SECTION 1 - PURCHASE AND SALE OF THE SHARES

             1.1  Purchase of the Shares from the Sellers.  Subject to
        and upon the terms and conditions of this Agreement, at the
        closing of the transactions contemplated by this Agreement (the
        "Closing"), THI shall cause its subsidiaries to sell, transfer,
        convey, assign and delivery to TBA , or its wholly-owned
        subsidiaries, and TBA or its wholly-owned subsidiaries shall
        purchase, acquire and accept the Shares.
                                        1PAGE
<PAGE>
             1.2  Further Assurances.   At any time and from time to time
        after the Closing, at TBA's request and without further
        consideration, each Seller shall promptly execute and deliver
        such instruments of sale, transfer, conveyance, assignment and
        confirmation, and take all such other action as TBA may
        reasonably request, more effectively to transfer, convey and
        assign to TBA, and to confirm TBA's title to, all of the Shares
        owned by such Seller, to put TBA in actual possession and
        operating control of the assets, properties and business of the
        Companies, to assist in exercising all rights with respect
        thereto and to carry out the purpose and intent of this
        Agreement.

             1.3  Purchase Price for the Shares.  

                  (a)  The purchase price to be paid by TBA for the
        Shares (the "Purchase Price") shall consist of (i) a promissory
        note of TBA in the principal amount of $48,800,000 (the "Note"),
        maturing July 15, 1998 and bearing interest at the commercial
        paper composite rate plus 25 basis points, and (ii) 1,300,000
        shares of common stock, $.01 par value, of TBA (the "TBA
        Shares"). 

                  (b)  TBA and THI acknowledge and agree that the
        Purchase Price represents an estimate of the sum of (i) the net
        operating assets of the Companies as of the date of THI's
        acquisition of LSI, plus (ii) a percentage of the total goodwill
        associated with THI's acquisition of LSI equal to the sales of
        the Companies for the 1996 fiscal year relative to the total
        sales of LSI during such period (the "Goodwill Percentage").
        Promptly following the Closing Date, but in any event no later
        than September 30, 1997, THI will prepare a draft statement of
        the net operating assets of the Companies (the "Companies Net
        Asset Statement"), and a draft calculation of THI's total
        goodwill associated with the acquisition of LSI (the "THI
        Goodwill Statement") in each case as of March 12, 1997, the date
        of THI's acquisition of LSI.  TBA will review such statements and
        provide THI with any objections thereto within 30 days after
        TBA's receipt thereof.  If TBA does not object within such 30-day
        period, then the THI Goodwill Statement and the Companies Net
        Asset Statement shall be deemed to be accepted by TBA and shall
        become final.  If TBA does object to either statement, then the
        parties will use best efforts to resolve any such objections
        within 30 days.  If the parties are unable to resolve such
        objections within such 30-day period, then any disputed items
        will be resolved by an accounting firm designated jointly by TBA
        and THI and the statements shall be finalized in accordance with
        the determination of such firm.  Upon finalization of the
        Companies Net Asset Statement and the THI Goodwill Statement as
        provided above, the Purchase Price shall be increased or
        decreased, as the case may be,  by (A) the amount by which the
        net operating assets of the Companies as shown on the Companies
        Net Asset Statement are greater than or less than $20,500,000 and
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        (B) the amount by which the Goodwill Percentage of THI's total
        goodwill as shown on the THI Goodwill Statement is greater than
        or less than $71,000,000.  Any payment due by TBA or THI to the
        other under this section 1.3(b) shall be accompanied by interest
        from the date hereof at a rate equal to the Commercial Paper
        Composite Rate plus 25 basis points.  For purposes of this
        section 1.3(b), "goodwill" means cost in excess of net tangible
        assets acquired, and does not include any restructuring or
        similar costs or reserves accrued in connection with actions
        taken by the businesses of LSI after March 12, 1997 to reduce
        costs or enhance profitability, and "net operating assets" means
        tangible assets, exclusive of cash, minus total liabilities,
        exclusive of debt for borrowed money, determined in accordance
        with THI's accounting policies.

             1.4  Closing.  The Closing shall take place at the offices
        of THI at 81 Wyman Street, Waltham, Massachusetts.  At the
        Closing THI shall deliver, or cause its subsidiaries to deliver,
        certificates evidencing the Shares duly endorsed in blank or with
        stock powers duly executed.  At the Closing TBA shall deliver (i)
        the Note to THI on behalf of THI and its subsidiaries and (ii)
        one or more certificates representing the TBA Shares registered
        in the name of THI and/or such of its subsidiaries as THI shall
        designate.

        SECTION 2 - REPRESENTATIONS AND WARRANTIES OF THI

             Except as set forth on the disclosure schedule delivered to
        TBA on the date hereof (the "Disclosure Schedule"), THI
        represents and warrants to TBA as follows.  The term "knowledge,"
        when used in this Agreement, shall mean actual knowledge after
        reasonable investigation.

             2.1  Organization and Qualification.  Each of the Sellers
        and the Companies is a corporation duly organized, validly
        existing and in good standing under the laws of its jurisdiction
        of incorporation and has full corporate power and authority to
        own, lease and operate its assets and to carry on its business as
        now being and as heretofore conducted.  Each of  the Sellers and
        the Companies is qualified or otherwise authorized to transact
        business as a foreign corporation in all jurisdictions in which
        such qualification or authorization is required by law, except
        for jurisdictions in which the failure to be so qualified or
        authorized would not have a material adverse effect on the
        assets, properties, business, results of operations, condition
        (financial or otherwise) or prospects of the Companies taken as a
        whole.

             2.2  Authority. THI has full right, power, capacity and
        authority to execute, deliver and perform this Agreement and to
        consummate the transactions contemplated hereby and each of the
        Sellers has full right, power, capacity and authority to
        consummate the transactions contemplated hereby to be performed
        by such Seller. The execution, delivery and performance of this
                                        3PAGE
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        Agreement and the consummation of the transactions contemplated
        hereby have been duly and validly authorized by all necessary
        corporate action on the part of THI. This Agreement has been duly
        and validly executed and delivered by THI and constitutes the
        valid and binding obligation of THI, enforceable against it in
        accordance with the terms hereof.  Neither the execution,
        delivery and performance of this Agreement, nor the consummation
        of the transactions contemplated hereby will (i) conflict with or
        result in a violation, breach, termination or acceleration of, or
        default under (or would result in a violation, breach,
        termination, acceleration or default with the giving of notice or
        passage of time, or both) any of the terms, conditions or
        provisions of the organizational documents of any Seller or
        Company, or of any note, bond, mortgage, indenture, license,
        agreement or other instrument or obligation to which any of
        Seller or Company is a party or by which any Seller or Company or
        any of their respective properties or assets may be bound or
        affected; (ii) result in the violation of any order, writ,
        injunction, decree, statute, rule or regulation applicable to any
        Seller or Company or any of their respective properties or
        assets; (iii) result in the imposition of any lien, encumbrance,
        charge or claim upon any assets of any of the Companies; or (iv)
        entitle any employee of any of the Companies to severance or
        other payments or create any other obligation to an employee.  No
        consent or approval by, or notification to or filing with, any
        court, governmental authority or third party is required in
        connection with the execution, delivery and performance of this
        Agreement by any Seller or the consummation of the transactions
        contemplated hereby.

             2.3  Capitalization and Title to Shares.

                  (a)  The authorized share capital of the Companies is
        set forth on Exhibit A hereto.  With respect to each Company, the
        Seller set forth opposite the name of such Company on Exhibit A
        is the record and beneficial owner of all of the issued and
        outstanding shares of such Company.  All of the Shares are duly
        authorized and are validly issued, fully paid, nonassessable and
        free of preemptive rights. 

                  (b)  Except as set forth on Exhibit A, there are not
        any other shares of capital stock of any Company authorized or
        outstanding or any subscriptions, options, conversion or exchange
        rights, warrants, repurchase or redemption agreements, or other
        agreements or commitments obligating any Company to issue,
        transfer, sell, repurchase or redeem any shares of its capital
        stock or other securities of any Company.  There are no written
        shareholder agreements, voting trusts, proxies or other
        agreements, instruments or understandings with respect to the
        voting of the capital stock of any Company.  The books and
        records of each Company, including without limitation the books
        of account, minute books, stock certificate books and stock
        ledgers, are complete and correct and accurately reflect the
        conduct of the business and affairs of such Company.
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             2.4  Subsidiaries and Other Affiliates. 

                  (a)  The Disclosure Schedule sets forth all
        Subsidiaries of the Companies and the jurisdiction in which each
        is incorporated.  All shares of the capital stock of each
        Subsidiary owned by the Companies are owned free and clear of any
        charges, liens, encumbrances, security interests or adverse
        claims.  As used in this Agreement, "Subsidiary" means any
        corporation or other legal entity of which a party to this
        Agreement owns, directly or indirectly, fifty percent (50%) or
        more of the stock or other equity interest entitled to vote for
        the election of directors and representations, warranties and
        covenants referring to any Company contained herein shall be
        deemed to mean such Company and each of its Subsidiaries, both
        separately and together as a consolidated whole, unless and
        except to the extent expressly indicated otherwise.

                  (b)  There are not any other shares of capital stock of
        any Subsidiary of any Company authorized or outstanding or any
        subscriptions, options, conversion or exchange rights, warrants,
        repurchase or redemption agreements, or other agreements or
        commitments obligating any Subsidiary of any Company to issue,
        transfer, sell, repurchase or redeem any shares of its capital
        stock or other securities.  There are no shareholder agreements,
        voting trusts, proxies or other agreements, instruments or
        understandings with respect to the voting of the capital stock of
        any Subsidiary of any Company.

                  (c)  Except for its Subsidiaries, none of the
        Companies, directly or indirectly, owns any material equity
        interest in any corporation, partnership, joint venture or other
        entity.

             2.5  Financial Statements.  THI has delivered to TBA prior
        to the execution of this Agreement true and complete copies of:
        the unaudited consolidated balance sheet of the Companies as at
        March 29, 1997  (the "Balance Sheet"), and the unaudited
        consolidated statements of earnings of the Companies for the
        three years ended December 31, 1996 and for the three-month
        period ended March 29, 1997  (collectively, the "Financial
        Statements").  The Financial Statements have been prepared from,
        and are in accordance with, the books and records of LSI and
        fairly present the financial condition, results of operations,
        and cash flows of the Companies as at the dates and for the
        periods indicated, in each case in accordance with U.K. generally
        accepted accounting principles applied on a basis consistent with
        previous years subject to normal year-end adjustments and
        footnote disclosures, which in the aggregate are not material.

             2.6  Absence of Undisclosed Liabilities; No Dealings with
        Affiliates.  As of the date of the Balance Sheet, none of the
        Companies had any material liabilities or obligations of any
        nature, whether accrued, absolute, contingent or otherwise and
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        whether due or to become due (including without limitation,
        liabilities as guarantor or otherwise with respect to obligations
        of others or liabilities for taxes due or then accrued or to
        become due), required to be reflected or disclosed on the Balance
        Sheet that were not adequately reflected or reserved against on
        the Balance Sheet.  None of the Companies has any liabilities of
        the type required to be reflected or disclosed on a balance sheet
        in accordance with U.K. generally accepted accounting principles,
        other than liabilities (i) adequately reflected or reserved
        against on the Balance Sheet, (ii) incurred since the date of the
        Balance Sheet in the ordinary course of business and consistent
        with past practice, (iii) that would not, in the aggregate, have
        a material adverse effect on the Companies taken as a whole, or
        (iv) disclosed in this Agreement.  None of the Companies has any
        contractual arrangement with or commitment to or from any of its
        stockholders, officers, management, directors or employees (or
        their family members) other than such as may have been entered
        into in the normal course of employment, including, without
        limiting the generality of the foregoing, being directly or
        indirectly a joint investor or coventurer with respect to, or
        owner, lessor, lessee, licenser or licensee of, any real or
        personal property, tangible or intangible, owned or used by, or a
        lender to or debtor of, such Company.

             2.7  Taxes.  Each of the Companies has accurately prepared
        and duly and timely filed all federal, state, local, provincial
        or foreign tax and other returns and reports which were required
        to be filed, in respect of all income, franchise, excise, sales,
        use, property (real and personal), VAT, payroll and other taxes,
        levies, imports, duties, license and registration fees, charges
        or withholdings of any nature whatsoever (collectively "Taxes"),
        and to the extent the liabilities of the Companies for Taxes have
        not been fully discharged, adequate reserves have been
        established on the Balance Sheet.  None of the federal, state,
        local, provincial or foreign Tax returns of the Companies has
        been audited or examined by the governmental authority having
        jurisdiction.  No waivers of any statutes of limitation are in
        effect in respect of any Taxes.  None of the Companies is in
        default in the payment of any Taxes due and payable or on any
        assessments received in respect thereof, and there are no claims
        pending or, to the best knowledge of the Companies and the
        Sellers, threatened, against any of the Companies for past due
        Taxes. All Taxes incurred but not yet due have been fully accrued
        on the books of the Companies or full reserves have been
        established therefor; the reserves indicated on the Balance Sheet
        are also adequate to cover all Taxes that may become payable by
        the Companies in future periods in respect of any transactions or
        sales occurring on or prior to the date of the Balance Sheet.
        Without limiting the generality of the foregoing, the Companies
        have withheld or collected from each payment made to each of
        their employees, consultants or non-U.S. payees, the amount of
        all Taxes required to be withheld or collected therefrom, and has
        paid the same to the proper tax receiving officers or authorized
        depositories.
                                        6PAGE
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             2.8  Properties.  Each Company owns and has good title to
        all of the assets and properties reflected as owned by it on the
        Balance Sheet or acquired by such Company since the date of the
        Balance Sheet (except personal property sold or otherwise
        disposed of in the ordinary course of business since the date of
        the Balance Sheet), free and clear of any lien, claim or other
        encumbrance, except for (i) the liens, claims or other
        encumbrances reflected on the Balance Sheet, (ii) assets and
        properties disposed of, or subject to purchase or sales orders,
        in the ordinary course of business since the date of the Balance
        Sheet, (iii) liens, claims or other encumbrances securing the
        liens of materialmen, carriers, landlords and like persons, all
        of which are not yet due and payable, (iv) liens for taxes not
        yet delinquent and (v) liens, claims, other encumbrances or
        defects in title that, in the aggregate, are not material to the
        Companies taken as a whole.  The Companies own or have a valid
        leasehold interest in all of the buildings, structures, leasehold
        improvements, equipment and other tangible property material to
        the Companies taken as a whole, all of which are in good and
        sufficient operating condition and repair, ordinary wear and tear
        excepted and none of the Companies has received any notice that
        any such property is in violation in any material respect of any
        existing law or any building, zoning, health, safety or other
        ordinance, code or regulation.

             2.9  Hazardous Materials. 

                  (a)  There has been no generation, use, handling,
        storage or disposal of any Hazardous Materials in violation of
        common law or any applicable environmental law at any site owned
        or premises leased by any of the Companies during the period of
        such Company's ownership or lease that could have a material
        adverse effect on the Companies taken as a whole.  Nor has there
        been or is there threatened any release of any Hazardous
        Materials on or at any such site or premises during such period
        in violation of common law or any applicable environmental law or
        which created or will create an obligation to report or remediate
        such release, which release or failure to report or remediate
        could have a material adverse effect on the Companies taken as a
        whole.  For purposes of this Agreement, "Hazardous Material"
        means any medical waste, flammable, explosive or radioactive
        material, or any hazardous or toxic waste, substance or material,
        including substances defined as "hazardous substances,"
        "hazardous materials," "solid waste" or "toxic substances" under
        any applicable laws or ordinances relating to hazardous or toxic
        materials and substances, air pollution (including noise and
        odors), water pollution, liquid and solid waste, pesticides,
        drinking water, community and employee health, environmental land
        use management, stormwater, sediment control, nuisances,
        radiation, wetlands, endangered species, environmental
        permitting, petroleum products, and all rules and regulations
        promulgated pursuant to any such laws and ordinances.

                                        7PAGE
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                  (b)  THI has previously made available to TBA copies of
        all documents concerning any environmental or health and safety
        matter that could have a material adverse effect on the Companies
        taken as a whole, if any, and copies of any environmental audits
        or risk assessments, site assessments, documentation regarding
        off-site disposal of Hazardous Materials, spill control plans and
        material correspondence with any governmental authority regarding
        the foregoing.

             2.10 Accounts Receivable.  All accounts and notes receivable
        of the Companies shown on the Balance Sheet and all accounts and
        notes receivable acquired by the Companies subsequent to the date
        of the Balance Sheet have arisen in the ordinary course of
        business and have been collected, or are in the process of
        collection and are collectible in the ordinary course of business
        and in any event within nine months from the Closing Date, in the
        aggregate recorded amounts thereof, less the applicable
        allowances reflected on the Balance Sheet with respect to the
        accounts and notes receivable shown thereon, or set up consistent
        with past practice on the books of the Companies with respect to
        the accounts and notes receivable acquired subsequent to the date
        of the Balance Sheet.

             2.11 Inventories.  All Inventories (as defined below) of the
        Companies are of a quality and quantity usable and saleable in
        the ordinary course of business, except for obsolete items and
        items of below- standard quality, all of which are in the
        aggregate immaterial to the Companies taken as a whole.  Items
        included in such Inventories are carried on the books of the
        Companies, and are valued on the Balance Sheet, at the lower of
        cost or market.  The value of obsolete materials and materials of
        below-standard quality or quantity has been written down on the
        books of account of the Companies to realizable market value.
        The term "Inventories" includes all stock of raw materials,
        work-in-process and finished goods, including but not limited to
        finished goods purchased for resale, held the Companies for
        manufacturing, assembly, processing, finishing, sale or resale to
        others, from time to time in the ordinary course of business of
        the Companies in the form in which such inventories then are held
        or after manufacturing, assembling, finishing, processing,
        incorporating with other goods or items, refining or the like.

             2.12 Purchase and Sale Commitments.  No outstanding purchase
        commitments by any of the Companies are in excess of the normal,
        ordinary and usual requirements of such Company, and the
        aggregate of the contract prices to which the Companies have
        agreed in any outstanding purchase commitments is not so
        excessive when compared with current market prices for the
        relevant commodities or services that a material loss is likely
        to result.  No outstanding sales commitment by any of the
        Companies obligates such Company to sell any product or service
        at a price which, because of currently prevailing and projected
        costs of materials or labor, is likely to result, when all such
        sales commitments are taken in the aggregate, in a material loss
                                        8PAGE
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        to the Companies taken as a whole. There are no material
        suppliers to any of the Companies of significant goods or
        services with respect to which practical alternative sources of
        supply, or comparable products, are not available on comparable
        terms and conditions.

             2.13 Governmental Authorizations.  The Companies have all
        governmental permits, licenses, franchises, concessions, zoning
        variances and other approvals, authorizations and orders
        (collectively "Permits") material to the Companies taken as a
        whole.  All such Permits are presently in full force and effect,
        the Companies are in compliance with the requirements thereof, no
        suspension or cancellation of any of them is threatened so far as
        is known to the Sellers or the Companies, and the sale of the
        Shares as contemplated hereby will not adversely affect the
        validity or effectiveness of, and will not require, for retention
        thereof after such sale, the consent or approval of any party to,
        or any other person or governmental authority having jurisdiction
        of, any such Permit.  None of the Companies or the Sellers has
        any knowledge of any fact or circumstance which would prevent,
        limit or restrict it from continuing to operate its business in
        the present manner, and no new requirements pertaining to the
        manner of operating its business have been issued or announced by
        any governmental authority during the past year nor are there any
        disputes pending between any of the Companies and any
        governmental authority relating to such Company's operations as
        presently being conducted or actively considered.

             2.14 Intellectual Property.  Each of the Companies owns, or
        is licensed to use, or otherwise has the right to use all
        patents, trademarks, service marks, trade names, trade secrets,
        franchises, and copyrights, and all applications for any of the
        foregoing, and all technology, know-how and processes necessary
        for the conduct of its businesses as now conducted (collectively,
        the "Proprietary Rights").  A list of all such copyrights,
        trademarks, tradenames and patents, and all applications
        therefor, has been furnished or made available to TBA. None of
        the Companies or the Sellers is aware of any claim by any third
        party that the business of any of the Companies as currently
        conducted or proposed to be conducted infringes upon the
        unlicensed Proprietary Rights of others, nor have any of the
        Companies or any of the Sellers received any notice or claim from
        any third party of such infringement by any of the Companies.
        None of the Companies or the Sellers is aware of any infringement
        by any third party on, or any competing claim of right to use or
        own any of, the Proprietary Rights of any of the Companies.  Each
        of the Companies has the right to use, free and clear of claims
        or rights of others, all customer lists and computer software
        material to its business as presently conducted.  To the best
        knowledge of the Companies and the Sellers, none of the
        activities of the employees of any of the Companies on behalf of
        such Company violates any agreements or arrangements which any
        such employees have with former employers in a way which is

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        materially adverse to the business of the Companies taken as a
        whole.

             2.15 Insurance.  None of the Companies is in default with
        respect to any provisions of any policy of general liability,
        fire, title or other form of insurance held by it, each of the
        Companies is current in the payment of all premiums due on such
        insurance and none of the Companies has failed to give any notice
        or present any claim thereunder in due and timely fashion, except
        for claims that are immaterial in both the nature of the claim
        and in the amount of such claim.  The Companies maintain
        insurance on all of their assets and business (including products
        liability insurance) from insurers which are financially sound
        and reputable, in amounts and coverages and against the kinds of
        risks and losses reasonably prudent to be insured against by
        corporations engaged in the same or similar businesses.  No basis
        exists which would jeopardize the coverage under any such
        insurance.  No such insurance will be terminated or canceled by
        reason of the execution, delivery and performance of this
        Agreement or the consummation of the transactions contemplated
        hereby.  THI has previously furnished or made available to TBA
        all policies of general liability, fire, title or other forms of
        insurance applicable to the Companies and a description of all
        claims pending thereunder other than health or dental insurance
        claims.

             2.16 Employee Benefit Plans. 

                  (a)  THI has made available or furnished to TBA true
        and complete copies of each pension, profit-sharing, deferred
        compensation, incentive compensation, severance pay, retirement,
        welfare benefit or other plan or arrangement providing benefits
        to employees or retirees, including both those that do and do not
        constitute employee benefit plans within the meaning of Section
        3(3) of the Employee Retirement Income Security Act of 1974, as
        amended (the "ERISA"), currently maintained or contributed to by
        THI or any of its affiliates for the benefit of the employees or
        retirees of the Companies (each, a "Plan").

                  (b)  Except as set forth on the Disclosure Schedule,
        (i) each such Plan that is an "employee pension benefit plan"
        within the meaning of Section 3(2) of ERISA is being operated and
        administered in compliance with Section 401(a) of the Code, a
        favorable determination letter has been obtained from the
        Internal Revenue Service (the "IRS") for such Plan, and there is
        no accumulated funding deficiency, as defined in Section
        302(a)(2) of ERISA or Section 412 of the Code, with respect to
        such Plan; (ii) there has been no non-exempt "prohibited
        transaction" within the meaning of Section 406 of ERISA or
        Section 4975 of the Code involving the assets of any Plan nor any
        "reportable event" within the meaning of Section 4043 of ERISA
        with respect to any Plan; (iii) all required employer
        contributions to such Plan have been made (or, in the case of
        contributions not yet due, have been accrued on the Balance
                                       10PAGE
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        Sheet); (iv) THI has made available to TBA as to each such Plan a
        true and correct copy of (w) the annual report (Form 5500) filed
        with the IRS for each of the three most recent plan years, (x)
        each plan, trust agreement, group annuity contract and insurance
        contract, if any, relating to such Plan, (y) each actuarial
        report prepared for each of the last three years for each Plan
        and (z) each summary plan description distributed to participants
        in each Plan and each summary of material modifications to each
        Plan (as defined in ERISA); and (v) each such Plan is, and at all
        relevant times has been, in compliance with ERISA, the Code and
        the terms of such Plan.  None of the Sellers or the Companies or
        their respective affiliates has ever participated in a
        "multiemployer pension plan" as defined in Section 3(37) of
        ERISA.

                  (c)  Except as set forth on the Disclosure Schedule,
        none of the Companies has any has no obligation to provide any
        welfare benefits to retired or former employees other than
        continuation of welfare benefits as required by applicable law.

                  (d)  None of the Companies has any liability under or
        with respect to any employee benefit plans or arrangements that
        it no longer maintains or in which it no longer participates.

             2.17 Agreements and Documents.  THI has previously furnished
        or made available to TBA true, correct and complete copies of
        each document that is referred to or otherwise related to any of
        the following items referred to in this Section 2.17:

                  (a)  each document related to interests in real
        property owned, leased or otherwise used or claimed by any of the
        Companies;

                  (b)  (i) each agreement of any of the Companies made in
        the ordinary course of business which involves aggregate future
        payments by or to any of the Companies of more than one hundred
        fifty thousand dollars ($150,000) or any agreement made in the
        ordinary course of business whose term extends beyond one year
        after the date hereof; (ii) each agreement containing any
        covenant restricting the freedom of any of the Companies to
        compete in any line of business or with any person; and (iii)
        each agreement of any of the Companies not made in the ordinary
        course of business which is or was to be performed after May 6,
        1997;

                  (c)  all employment or similar compensation agreements
        of any of the Companies which may not be terminated by such
        Company without penalty within thirty days after the Closing;

                  (d)  all bonus, incentive compensation, deferred
        compensation, profit-sharing, stock option, retirement, pension,
        severance, indemnification, insurance, death benefit or other
        fringe benefit plans, agreements or arrangements of any of the
        Companies (or applying to any of the Companies) in effect, or
                                       11PAGE
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        under which any amounts remain unpaid, on the date hereof or to
        become effective after the date hereof;

                  (e)  all labor unions or other organizations
        representing, purporting to represent or attempting to represent
        any employees of any of the Companies, and all collective
        bargaining agreements of any of the Companies with any labor
        unions or other representatives or employees;

                  (f)  each agreement or other instrument or arrangement
        defining the terms on which any indebtedness of any of the
        Companies (or a guarantee by any of the Companies of
        indebtedness) is or may be issued; and

                  (g)  the names and addresses of all banks in which any
        of the Companies has accounts or lines of credit, and with
        respect to each such account or line of credit, the names of all
        persons authorized to drawn thereon.

                  None of the Companies is a party to any oral contract
        or agreement which would be required to have been furnished or
        made available to TBA under this Section 2.17 had such contract
        or agreement been committed to writing.

             2.18 Validity.  There is no default or claimed or purported
        or alleged default, or basis on which with notice or lapse of
        time or both (including notice of this Agreement), a default
        would exist, in any obligation on the part of any party
        (including any of the Companies) to be performed under any lease,
        contract, plan, policy or other instrument or arrangement
        referred to in Section 2.17 or otherwise in this Agreement.

             2.19 No Changes.  Since the date of the Balance Sheet there
        has not been:

                  (a)  any material adverse change in the business of the
        Companies taken as a whole;

                  (b)  any material damage, destruction or loss (whether
        or not covered by insurance) adversely affecting the business of
        the Companies taken as a whole;

                  (c)  any declaration, setting aside or payment of any
        dividend, or other distribution, in respect of any capital stock
        of any of the Companies or any direct or indirect redemption,
        purchase or other acquisition of such stock;

                  (d)  any option to purchase any capital stock of any of
        the Companies granted to any person, or any employment or
        deferred compensation agreement entered into between any Company
        and any of its stockholders, officers, directors, employees or
        consultants;

                                       12PAGE
<PAGE>
                  (e)  any issuance or sale by any of the Companies of
        any stock, bonds or other corporate securities, or any partial or
        complete formation, acquisition, disposition or liquidation of
        any of the Companies;

                  (f)  any labor union activity (including without
        limitation any negotiation, or request for negotiation, with
        respect to any union representation or any labor contract)
        respecting any of the Companies;

                  (g)  any statute, rule or regulation, or, to the best
        knowledge of the Companies and the Sellers, any government
        policy, adopted which may materially and adversely affect the
        business of any of the Companies;

                  (h)  any mortgage, lien, attachment, pledge,
        encumbrance or security interest created on any asset, tangible
        or intangible, of any of the Companies, or assumed, either by any
        Company or by others, with respect to any such assets, except for
        liens permitted under Section 2.8;

                  (i)  any indebtedness or other liability or obligation
        (whether absolute, accrued, contingent or otherwise) incurred, or
        other transaction (except that reflected in this Agreement)
        engaged in, by any of the Companies, except those in the ordinary
        course of business that are individually, or in the aggregate to
        one group of related parties, less than fifty thousand dollars
        ($50,000);

                  (j)  any obligation or liability discharged or
        satisfied by any of the Companies, except items included in
        current liabilities shown on the Balance Sheet and current
        liabilities incurred since the date of the Balance Sheet in the
        ordinary course of business which are individually, or in the
        aggregate to one group of related parties, less than twenty five
        thousand dollars ($25,000) in amount;

                  (k)  any sale, assignment, lease, transfer or other
        disposition of any tangible asset of any of the Companies, except
        in the ordinary course of business, or any sale, assignment,
        lease, transfer or other disposition of any of its patents,
        trademarks, trade names, brand names, copyrights, licenses or
        other intangible assets;

                  (l)  any amendment, termination or waiver of any
        material right belonging to any of the Companies;

                  (m)  any increase in the compensation or benefits
        payable or to become payable by any of the Companies to any of
        its officers or employees;

                  (n)  any other action or omission by any of the
        Companies, or the passage of any resolution, other than in the
        ordinary course of business.
                                       13PAGE
<PAGE>
             2.20 Litigation or Proceedings.  None of the Companies is
        engaged in, or a party to, or, to the best of the Sellers' and
        the Companies' knowledge, threatened with, any claim or legal
        action or other proceeding before any court, any arbitrator of
        any kind or any governmental authority, nor does any basis for
        any claim or legal action or other proceeding or governmental
        investigation exist.  There are no orders, rulings, decrees,
        judgments or stipulations to which any of the Companies is a
        party by or with any court, arbitrator or governmental authority
        affecting the Companies.

             2.21 Compliance with Laws.  Each Company (i) has not been
        and is not in violation of any applicable building, zoning,
        occupational safety and health, pension, export control,
        environmental or other federal, state, local or foreign law,
        ordinance, regulation, rule, order or governmental policy
        applicable to it; (ii) has not received any complaint from any
        governmental authority, and to the best knowledge of the Sellers
        and the Companies, none is threatened, alleging that such Company
        has violated any such law, ordinance, regulation, rule, order or
        governmental policy; (iii) has not received any notice from any
        governmental authority of any pending proceedings to take all or
        any part of the properties of such Company (whether leased or
        owned) by condemnation or right of eminent domain and, to the
        best knowledge of the Sellers and the Companies, no such
        proceeding is threatened; and (iv) is not a party to any
        agreement or instrument, or subject to any charter or other
        corporate restriction or judgment, order, writ, injunction, rule,
        regulation, code or ordinance, which materially and adversely
        affects, or might reasonably be expected materially and adversely
        to affect the business of the Companies taken as a whole.

             2.22 Labor Matters.  There are no labor organizing
        activities, election petitions or proceedings, labor strikes,
        disputes, slowdowns, work stoppages or unfair labor practice
        complaints pending or, to the best knowledge of the Sellers and
        the Companies, threatened against any of the Companies or between
        any of the Companies and any of its employees.

             2.23 Recalls.  There is no basis for the recall, withdrawal
        or suspension of any approval by any governmental authority with
        respect to any product sold or proposed to be sold by any of the
        Companies.  None of the products of any of the Companies is
        subject to any recall proceedings and to the best of its
        knowledge no such proceedings have been threatened. 

             2.24 Brokers and Finders.  None of the Sellers or the
        Companies has employed any broker, agent or finder or incurred
        any liability on behalf of any of the Sellers or the Companies or
        for any brokerage fees, agents' commissions or finders' fees in
        connection with the transactions contemplated hereby.

                                       14PAGE
<PAGE>
             2.25 Powers of Attorney.  None of the Companies has any
        powers of attorney or similar authorizations outstanding.

             2.26 No Termination of Relationship.  As of the date hereof,
        none of the Sellers or the Companies has any reason to expect
        that any relationship between any Company and a material
        distributor, customer, supplier, lender, employee or other person
        will be terminated or adversely affected as a result of the
        transactions contemplated by this Agreement.

             2.27 All Information.  TBA has been furnished in writing
        prior to the execution of this Agreement all information as to
        the business of the Companies material to a reasonable buyer's
        determination to enter into this Agreement and to consummate the
        transactions contemplated hereby.

             2.28 Statements True and Correct.  The statements contained
        herein or in any written documents prepared and delivered by or
        on behalf of THI pursuant to the terms hereof are true, complete
        and correct in all material respects, and such documents do not
        omit any material fact required to be stated herein or therein or
        necessary to make the statements contained herein or therein not
        misleading.


        SECTION 3 - REPRESENTATIONS AND WARRANTIES OF TBA

             TBA represents and warrants to THI as follows.

             3.1  Organization.   TBA is a corporation duly organized,
        validly existing and in good standing under the laws of the state
        of Delaware and has full corporate power and authority to own,
        lease and operate its assets and to carry on its business as now
        being and as heretofore conducted. 

             3.2  Authority. TBA has full right, power, capacity and
        authority to execute, deliver and perform this Agreement and to
        consummate the transactions contemplated hereby. The execution,
        delivery and performance of this Agreement and the consummation
        of the transactions contemplated hereby have been duly and
        validly authorized by all necessary corporate action on the part
        of TBA, except that approval of the TBA shareholders is required
        to list the TBA Shares on the AMEX.  This Agreement has been duly
        and validly executed and delivered by TBA and constitutes the
        valid and binding obligation of TBA, enforceable against it in
        accordance with the terms hereof.  Neither the execution,
        delivery and performance of this Agreement nor the consummation
        of the transactions contemplated hereby will (i) conflict with or
        result in a violation, breach, termination or acceleration of, or
        default under (or would result in a violation, breach,
        termination, acceleration or default with the giving of notice or
        passage of time, or both) any of the terms, conditions or
        provisions of the Certificate of Incorporation or By-laws of TBA,
        as amended, or of any note, bond, mortgage, indenture, license,
                                       15PAGE
<PAGE>
        agreement or other instrument or obligation to which TBA is a
        party or by which TBA or any of its properties or assets may be
        bound or affected; (ii) result in the violation of any order,
        writ, injunction, decree, statute, rule or regulation applicable
        to TBA or any of its properties or assets; or (iii) result in the
        imposition of any lien, encumbrance, charge or claim upon any of
        its assets.  Except for the listing of the TBA Shares for trading
        on the AMEX, no consent or approval by, or notification to or
        filing with, any court, governmental authority or third party is
        required in connection with the execution, delivery and
        performance of this Agreement by TBA or the consummation of the
        transactions contemplated hereby.   The TBA Shares will be, when
        issued in accordance with this Agreement, duly authorized,
        validly issued, fully paid, nonassessable and free of pre-emptive
        rights.

             3.3  Statements True and Correct.  The statements contained
        herein or in any written documents prepared and delivered by or
        on behalf of TBA pursuant to the terms hereof are true, complete
        and correct in all material respects, and such documents do not
        omit any material fact required to be stated herein or therein or
        necessary to make the statements contained herein or therein not
        misleading.


        SECTION 4 - COVENANTS AND AGREEMENTS

             4.1  Conduct of Business.  Except with the prior written
        consent of TBA, which will not be unreasonably withheld or
        delayed, and except as otherwise contemplated herein, during the
        period from the date hereof to the Closing Date, THI shall cause
        the Sellers and the Companies to observe the following covenants:

                  (a)  Affirmative Covenants Pending Closing.  The
        Sellers and the Companies shall:

                       (i)  Preservation of Personnel.  Use all
        reasonable efforts to preserve intact the business organization
        of each Company and keep available the services of the present
        employees of each Company, in each case in accordance with past
        practice, it being understood that the termination of employees
        with poor performance ratings shall not constitute a violation of
        this covenant;

                       (ii) Insurance.  Use all reasonable efforts to
        keep in effect casualty, public liability, worker's compensation
        and other insurance policies applicable to the Companies in
        coverage amounts not less than those in effect at the date of
        this Agreement;

                       (iii)     Preservation of the Business;
        Maintenance of Properties.  Use all reasonable efforts to
        preserve the business of the Companies, advertise, promote and
        market its products and services in accordance with past
                                       16PAGE
<PAGE>
        practices over the last twelve months, keep their properties
        intact, preserve their goodwill, maintain all physical properties
        in such operating condition as will permit the conduct of such
        business on a basis consistent with past practice;

                       (iv) Intellectual Property Rights.  Use all
        reasonable efforts to preserve and protect the Proprietary Rights
        of the Companies; and

                       (v)  Ordinary Course of Business.  Operate the
        business of the Companies solely in the ordinary course.

                  (b)  Negative Covenants Pending Closing.  THI shall
        cause each of the Sellers and the Companies not to:

                       (i)  Disposition of Assets.  Sell or transfer, or
        mortgage, pledge or create or permit to be created any lien on,
        any of the assets of any of the Companies other than sales or
        transfers in the ordinary course of business or the creation of
        liens under existing arrangements disclosed hereunder and liens
        permitted under Section 2.8;

                       (ii) Liabilities.  Permit any of the Companies to
        (A) incur any obligation or liability other than in the ordinary
        course of business, (B) incur any indebtedness for borrowed money
        in excess of $100,000 or (C) enter into any contracts or
        commitments involving payments by any of the Companies of
        $100,000 or more other than purchase orders and commitments for
        inventory, materials and supplies in the ordinary course of
        business;

                       (iii)     Compensation.  Except as required by
        applicable law or any existing employment or severance agreement,
        (A) change the compensation or fringe benefits of any officer,
        director, employee or agent of any of the Companies, except for
        ordinary merit increases for employees other than officers based
        on periodic reviews in accordance with past practices, or (B)
        enter into or modify any employment, severance or other agreement
        with any officer, director or employee of any of the Companies or
        any benefit plan (it being understood that hiring of at will
        employees in the ordinary course of business shall not constitute
        a violation of this covenant) or (C) enter into or modify any
        agreement with any consultant, except for agreements terminable
        upon not more than one year's notice that are consistent with
        past practices with respect to consulting agreements.

                       (iv) Capital Stock.  Make any change in the number
        of shares of capital stock of any of the Companies authorized,
        issued or outstanding or grant any option, warrant or other right
        to purchase, or to convert any obligation into, shares of capital
        stock of any of the Companies, or declare or pay any dividend or
        other distribution with respect to any shares of  capital stock
        of any of the Companies, or sell or transfer any shares of its
        capital stock;
                                       17PAGE
<PAGE>
                       (v)  Organizational Documents.  Amend the
        organizational documents of any of the Companies;

                       (vi) Acquisitions.  Make any material acquisition
        of property other than in the ordinary course of the business of
        the Companies;

                       (vi) License Agreements.  Enter into or modify any
        license, technology development or technology transfer agreement
        between any of the Companies and any other person or entity.

             4.2  Corporate Examinations and Investigations.  Prior to
        the Closing Date, TBA shall be entitled, through its employees
        and representatives, to have such access to the assets,
        properties, business and operations of the Companies, as is
        reasonably necessary or appropriate in connection with its
        investigation of the Companies with respect to the transaction
        contemplated hereby.  Any such investigation and examination
        shall be conducted at reasonable times and under reasonable
        circumstances so as to minimize any disruption to or impairment
        of the business and each party shall cooperate fully therein.  No
        investigation by TBA shall diminish or obviate any of the
        representations, warranties, covenants or agreements of THI
        contained in this Agreement.  In order that TBA may have full
        opportunity to make such investigation, THI shall furnish the
        representatives of TBA with all such information and copies of
        such documents concerning the affairs of the Companies as TBA may
        reasonably request and cause its officers, employees,
        consultants, agents, accountants and attorneys to cooperate fully
        with TBA's representatives in connection with such investigation.

             4.3  Expenses.  TBA and THI shall bear their respective
        expenses incurred in connection with the preparation, execution
        and performance of this Agreement and the transactions
        contemplated hereby, including without limitation, all fees and
        expenses of agents, representatives, counsel and accountants.

             4.4  Authorization from Others.  Prior to the Closing Date,
        the parties shall use all reasonable efforts to obtain all
        authorizations, consents and permits of others required to permit
        the consummation of the transactions contemplated by this
        Agreement.

             4.5  Consummation of Agreement.  Each party shall use all
        reasonable efforts to perform and fulfill all conditions and
        obligations to be performed and fulfilled by it under this
        Agreement and to ensure that to the extent within its control or
        capable of influence by it, no breach of any of its respective
        representations, warranties and agreements hereunder occurs or
        exists on or prior to the Closing Date, all to the end that the
        transactions contemplated by this Agreement shall be fully
        carried out in a timely fashion.

                                       18PAGE
<PAGE>
             4.6  Further Assurances.  Each of the parties shall execute
        such documents, further instruments of transfer and assignment
        and other papers and take such further actions as may be
        reasonably required or desirable to carry out the provisions
        hereof and the transactions contemplated hereby. 

             4.7  Listing of Shares.  Promptly after the date hereof, TBA
        shall take all action necessary in accordance with applicable law
        to convene a meeting of its shareholders to be held for the
        purpose of approving the listing of the TBA Shares for trading
        upon AMEX in accordance with Section 712 of AMEX's Listing
        Standards, Policies and Requirements.  In connection with such
        meeting, TBA's Board of Directors shall recommend to the TBA
        shareholders the approval of the listing of the TBA Shares
        pursuant to this Agreement.  TBA shall use all reasonable efforts
        to obtain all votes and approvals of the TBA shareholders
        necessary for the listing of the TBA Shares and all related
        matters required under the Delaware Business Corporation Act, and
        its Certificate of Incorporation and By-laws.  THI hereby agrees
        to vote all of the shares of TBA common stock held by it as of
        the record date of any such meeting in favor of the listing of
        the TBA Shares and all such related matters.

             4.8  Public Announcements and Confidentiality.  Any press
        release or other information to the press or any third party with
        respect to this Agreement or the transactions contemplated hereby
        shall require the prior approval of TBA and THI, which approval
        shall not be unreasonably withheld, provided that a party shall
        not be prevented from making such disclosure as it shall be
        advised by counsel is required by law.

             4.9  No Solicitation.  None of the Sellers or the Companies
        will (i) solicit or initiate discussions with any person, other
        than TBA, relating to the possible acquisition of any of the
        Companies or all or a material portion of the assets or any of
        the capital stock of any of the Companies or any merger or other
        business combination with any of the Companies (an "Acquisition
        Transaction") or (ii) except to the extent reasonably required by
        fiduciary obligations under applicable law as advised by legal
        counsel, participate in any negotiations regarding, or furnish to
        any other person information with respect to, any effort or
        attempt by any other person to do or to seek any Acquisition
        Transaction.  THI agrees to inform TBA within one business day of
        its receipt of any offer, proposal or inquiry relating to any
        Acquisition Transaction.

             4.10 Indemnification. 

                  (a)  Right to Indemnification.  TBA and THI (as the
        case may be, the "Indemnitee") shall be indemnified on its
        respective demand made to the other (the "Indemnitor") for the
        full amount of all damages (as defined below) suffered by it as a
        direct or indirect result of:

                                       19PAGE
<PAGE>
                       (i)  the inaccuracy of any representation or
        warranty made by the Indemnitor in or pursuant to this Agreement;
        and

                       (ii  any failure by the Indemnitor to perform any
        obligation or comply with any covenant or agreement specified in
        this Agreement.

        For the purpose of this Section 4.10, (a) the term "damages"
        shall be determined and computed by reference to the effect of
        the compensable event on the Indemnitee, and shall be deemed to
        include (i) all losses, liabilities, expenses or costs incurred
        by the Indemnitee, including reasonable attorneys' fees, and (ii)
        interest at a rate per annum equal to that announced from time to
        time by First National Bank of Boston as its "base rate" (or the
        legal rate of interest, if lower) from the date 30 days after
        notice of any such claim for indemnification is given to the
        Indemnitor, or if an unliquidated claim, from such later date as
        the claim is liquidated, to the date full indemnification is made
        therefor; and (b) damages shall not include any amounts for which
        the Indemnitee actually receives payment under an insurance
        policy, excluding self-insured amounts and deductible amounts. 

                  (b)  Indemnification Procedures.  The Indemnitee shall
        give the Indemnitor notice of any claim, action or proceeding by
        a third party which is reasonably likely to result in a claim for
        indemnification under this Section 4.10.  The Indemnitor shall
        have the right, at its expense, to defend, contest, protest,
        settle and otherwise control the resolution of any such claim,
        action or proceeding.  The Indemnitee shall have the right to
        participate in any such legal proceeding, subject to the
        Indemnitor's right of control thereof, at the expense of the
        Indemnitee and with counsel selected by the Indemnitee.

                  (c)  Limitations on Indemnification.  The rights of TBA
        and THI to be indemnified pursuant to Section 4.10 shall survive
        the Closing Date for a period of two years.

             4.11 Repayment of Indebtedness.  THI agrees that it shall
        not seek repayment of $1,000,000 of the existing indebtedness
        from the Companies to LSI earlier than July 15, 1998.

        SECTION 5 - CONDITIONS PRECEDENT TO THE OBLIGATIONS OF TBA

             The obligation of TBA to acquire the Shares is subject to
        the satisfaction or waiver, at or before the Closing Date, of the
        following conditions:

             5.1  Representations, Warranties and Covenants.  The
        representations and warranties of THI contained in this Agreement
        shall be true and correct in all material respects on and as of
        the Closing Date with the same force and effect as though made on
        and as of the Closing Date (with such exceptions as may be
        permitted under or contemplated by this Agreement) and there
                                       20PAGE
<PAGE>
        shall not have been any material adverse change in the business
        of the Companies taken as a whole since the date hereof.  THI
        shall have performed and complied in all material respects with
        all covenants and agreements required by this Agreement to be
        performed or complied with by it on or prior to the Closing Date
        and shall have obtained all required consents and approvals.  THI
        shall have delivered to TBA a certificate, dated the Closing
        Date, to the foregoing effect.

             5.2  Certificates. THI shall have furnished TBA with such
        certificates of public officials and of the Sellers' or the
        Companies' officers as may be reasonably requested by TBA.


        SECTION 6 - CONDITIONS PRECEDENT TO THE OBLIGATION OF THI

             The obligation of THI to sell the Shares is subject to the
        satisfaction or waiver, at or before the Closing Date, of the
        following conditions:

             6.1  Representations, Warranties and Covenants.  The
        representations and warranties of TBA contained in this Agreement
        shall be true and correct in all material respects on and as of
        the Closing Date with the same force and effect as though made on
        and as of the Closing Date (with such exceptions as may be
        permitted under or contemplated by this Agreement).  TBA shall
        have performed and complied in all material respects with all
        covenants and agreements required by this Agreement to be
        performed or complied with by it on or prior to the Closing Date
        and shall have obtained all required consents and approvals,
        including approval of the TBA shareholders of the listing of the
        TBA Shares on the AMEX.  TBA shall have delivered to LSI a
        certificate, dated the Closing Date, to the foregoing effect.

             6.2  Certificates.  TBA shall have furnished THI with such
        certificates of public officials and of TBA's officers as may be
        reasonably requested by THI.

             6.3  De-Listing.  The shares of LSI shall have been
        de-listed from the London Stock Exchange.


        SECTION 7 - TERMINATION, AMENDMENT AND WAIVER

             7.1  Termination.  This Agreement may be terminated at any
        time prior to the Closing Date as follows:

                  (a)  by THI upon written notice to TBA if TBA has
        materially breached any representation, warranty, covenant or
        agreement contained herein and has not cured such breach within
        ten (10) business days of receipt of written notice from THI;

                  (b)  by TBA upon written notice to THI if THI has
        materially breached any representation, warranty, covenant or
                                       21PAGE
<PAGE>
        agreement contained herein and has not cured such breach within
        ten (10) business days of receipt of written notice from TBA;

                  (c)  by either party if any court of competent
        jurisdiction or United States or foreign governmental body shall
        have issued an order, decree or ruling or taken any other action
        restraining, enjoining or otherwise prohibiting the sale of any
        of the Shares and such order, decree or ruling shall have become
        final and nonappealable; or

                  (d)  at any time with the written consent of TBA and
        THI.

             7.2  Effect of Termination.  If this Agreement is terminated
        as provided in Section 7.1, this Agreement shall forthwith become
        void and have no effect, without liability on the part of any
        party, its directors, officers or stockholders, other than the
        provisions of this Section 7.2, Section 4.3 relating to expenses
        and Section 4.8 relating to publicity and confidentiality to the
        extent provided therein.  Nothing contained in this Section 7.2
        shall relieve any party from liability for any breach of this
        Agreement occurring before such termination.

             7.3  Amendment.  This Agreement may not be amended except by
        an instrument signed by each of the parties hereto.

             7.4  Waiver.  At any time, any party hereto may (a) extend
        the time for the performance of any of the obligations or other
        acts of any other party hereto or (b) waive compliance with any
        of the agreements of any other party or any conditions to its own
        obligations, in each case only to the extent such obligations,
        agreements and conditions are intended for its benefit; provided
        that any such extension or waiver shall be binding upon a party
        only if such extension or waiver is set forth in a writing
        executed by such party.











                                       22PAGE
<PAGE>
        SECTION 8 - MISCELLANEOUS

             8.1  Notices.  All notices, requests, demands, consents and
        other communications which are required or permitted hereunder
        shall be in writing, and shall be deemed given when actually
        received or if earlier, one day after deposit with a nationally
        recognized air courier or express mail, charges prepaid or three
        days after deposit in the U.S. mail by certified mail, return
        receipt requested, postage prepaid, addressed as follows:
         
                  If to THI:

                       Thermo Instrument Systems Inc.
                       1275 Hammerwood Avenue
                       Sunnyvale, CA 94089
                       Attention:  President

                  With a copy to:

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

                  If to TBA:

                       Thermo BioAnalysis Corporation
                       8 East Forge Parkway
                       Franklin, MA 02038
                       Attention:  President

                  With a copy to:

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

        or to such other address as any party hereto may designate in
        writing to the other parties, specifying a change of address for
        the purpose of this Agreement.

             8.2  Survival and Materiality of Representations.  Each of
        the representations, warranties and agreements made by the
        parties hereto shall be deemed material and shall survive the
        Closing Date and the consummation of the transactions
        contemplated hereby. All statements contained in any certificates
        or other instruments delivered by or on behalf of the parties
        pursuant hereto or in connection with the transactions
        contemplated hereby shall be deemed material and shall constitute
        representations and warranties by the person making such
        statement.
                                       23PAGE
<PAGE>
             8.3  Entire Agreement.  This Agreement, including the
        exhibits, the Disclosure Schedule and the other documents
        referred to herein, supersedes any and all oral or written
        agreements or understandings heretofore made relating to the
        subject matter hereof and constitutes the entire agreement of the
        parties relating to the subject matter hereof.

             8.4  Parties in Interest.  All covenants and agreements,
        representations and warranties contained in this Agreement made
        by or on behalf of any of the parties hereto shall bind and inure
        to the benefit of the parties hereto, and their respective
        successors, assigns, heirs, executors, administrators and
        personal representatives, whether so expressed or not.

             8.5  No Implied Rights or Remedies.  Except as otherwise
        expressly provided herein, nothing herein expressed or implied is
        intended or shall be construed to confer upon or to give any
        person, firm or corporation, other than the parties hereto, any
        rights or remedies under or by reason of this Agreement.

             8.6  Headings.  The headings in this Agreement are inserted
        for convenience of reference only and shall not be a part of or
        control or affect the meaning hereof.

             8.7  Severability.  If any provision of this Agreement shall
        be declared void or unenforceable by any judicial or
        administrative authority, the validity of any other provision
        shall not be affected thereby.

             8.8  Counterparts.  This Agreement may be executed in
        several counterparts, each of which shall be deemed an original,
        but all of which together shall constitute one and the same
        instrument.

             8.9  Further Assurances. THI will execute and furnish to TBA
        all documents and will do or cause to be done all other things
        that TBA may reasonably request from time to time in order to
        give full effect to this Agreement and to effectuate the intent
        of the parties.

             8.10 Governing Law.  This Agreement shall be governed by the
        law of the State of Delaware applicable to agreements made and to
        be performed wholly within such jurisdiction, without regard to
        the conflicts of laws provisions thereof.


                                       24PAGE
<PAGE>
             IN WITNESS WHEREOF, the parties have caused this Agreement
        to be duly executed as of the date first written above.

                                      THERMO BIOANALYSIS CORPORATION

        [Seal]                             By:   /s/ Barry S. Howe
                                              ---------------------------

                                      Name:     Barry S. Howe
                                      Title:    President

                                      THERMO INSTRUMENT SYSTEMS INC.

        [Seal]                             By:  /s/ Earl R. Lewis
                                              ---------------------------

       
                                      Name:     Earl R. Lewis
                                      Title:    President


















                                                                    Exhibit 11
                         THERMO BIOANALYSIS CORPORATION

                        Computation of Earnings per Share


                                                      Three Months Ended
                                                  --------------------------
                                                    March 29,      March 30,
                                                         1997           1996
   -------------------------------------------------------------------------
   Computation of Primary Earnings (Loss)
     per Share:

   Net Income (Loss) (a)                          $ 1,458,000    $(3,114,000)
                                                  -----------    -----------
   Shares:
     Weighted average shares outstanding            9,771,500      8,101,500

     Add: Shares issuable from assumed
          acquisition of Biosystems Group
          of LSI                                      257,143              -

          Shares issuable from
          assumed exercise of options
          (as determined by the
          application of the treasury
          stock method)                                     -        117,450
                                                  -----------    -----------
     Weighted average shares outstanding,
       as adjusted (b)                             10,028,643      8,218,950
                                                  -----------    -----------
   Primary Earnings (Loss) per Share (a) / (b)    $       .15    $      (.38)
                                                  ===========    ===========


<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THERMO
BIOANALYSIS CORPORATION'S QUARTERLY REPORT ON FORM 10-Q FOR THE QUARTER ENDED
MARCH 29, 1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          JAN-03-1998
<PERIOD-END>                               MAR-29-1997
<CASH>                                          59,190
<SECURITIES>                                         0
<RECEIVABLES>                                   26,871
<ALLOWANCES>                                     2,043
<INVENTORY>                                     29,605
<CURRENT-ASSETS>                               121,515
<PP&E>                                          24,134
<DEPRECIATION>                                   6,834
<TOTAL-ASSETS>                                 245,378
<CURRENT-LIABILITIES>                           75,265
<BONDS>                                              0
                                0
                                          0
<COMMON>                                           111
<OTHER-SE>                                      69,806
<TOTAL-LIABILITY-AND-EQUITY>                   245,378
<SALES>                                         23,382
<TOTAL-REVENUES>                                23,382
<CGS>                                           11,899
<TOTAL-COSTS>                                   11,899
<OTHER-EXPENSES>                                 2,191
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 678
<INCOME-PRETAX>                                  2,278
<INCOME-TAX>                                       820
<INCOME-CONTINUING>                              1,458
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     1,458
<EPS-PRIMARY>                                      .15
<EPS-DILUTED>                                        0
        


</TABLE>


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